/* roulang page: index */
:root {
            --primary: #1A1817;
            --secondary: #C43E2F;
            --secondary-hover: #A63427;
            --bg: #F6F3EE;
            --bg-alt: #FBFAF7;
            --surface: #FFFFFF;
            --accent: #A8855C;
            --text-main: #1A1817;
            --text-sub: #5C5552;
            --text-weak: #8C837E;
            --text-inverse: #F6F3EE;
            --text-inverse-sub: #B8B0A9;
            --border-light: rgba(26, 24, 23, 0.08);
            --border-lighter: rgba(26, 24, 23, 0.06);
            --border-inverse: rgba(246, 243, 238, 0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-pill: 999px;
            --shadow-xs: 0 2px 8px rgba(26, 24, 23, 0.04);
            --shadow-md: 0 8px 24px rgba(26, 24, 23, 0.08);
            --shadow-lg: 0 16px 40px rgba(26, 24, 23, 0.12);
            --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --font-number: "DIN Alternate", "Roboto Mono", "SF Mono", monospace;
            --container-max: 1200px;
            --section-spacing-desktop: 120px;
            --section-spacing-mobile: 72px;
            --nav-height: 60px;
            --nav-height-mobile: 54px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            font-weight: 400;
            min-height: 100vh;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease, background-color 0.3s ease, transform 0.25s ease, box-shadow 0.3s ease;
        }

        a:hover {
            text-decoration: none;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }

        :focus-visible {
            outline: 2px solid rgba(196, 62, 47, 0.6);
            outline-offset: 2px;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 640px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ============ 浮动 Dock 导航 ============ */
        .site-header {
            position: fixed;
            top: 20px;
            left: 0;
            right: 0;
            z-index: 9999;
            display: flex;
            justify-content: center;
            pointer-events: none;
            transition: top 0.3s ease;
        }

        .site-header.scrolled {
            top: 8px;
        }

        .nav-dock {
            pointer-events: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            max-width: 1140px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid rgba(26, 24, 23, 0.08);
            border-radius: var(--radius-pill);
            padding: 0 20px 0 16px;
            height: var(--nav-height);
            box-shadow: 0 4px 20px rgba(26, 24, 23, 0.05);
            transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .nav-dock.scrolled {
            background: rgba(255, 255, 255, 0.95);
            box-shadow: 0 8px 30px rgba(26, 24, 23, 0.09);
            border-color: rgba(26, 24, 23, 0.12);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-weight: 800;
            font-size: 18px;
            color: var(--text-main);
            letter-spacing: -0.01em;
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-inverse);
            font-size: 16px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2px;
            list-style: none;
            flex: 1;
            justify-content: center;
            flex-wrap: nowrap;
            overflow: hidden;
        }

        .nav-links li {
            flex-shrink: 0;
        }

        .nav-links a {
            display: inline-block;
            padding: 4px 13px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-sub);
            border-radius: var(--radius-pill);
            position: relative;
            transition: color 0.25s ease, background-color 0.3s ease;
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--text-main);
            background: rgba(26, 24, 23, 0.04);
        }

        .nav-links a.active {
            color: var(--secondary);
            font-weight: 600;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 16px;
            height: 2px;
            background: var(--secondary);
            border-radius: 1px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .nav-search-btn {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-sub);
            font-size: 15px;
            transition: color 0.25s ease, background-color 0.3s ease, transform 0.25s ease;
            background: transparent;
        }

        .nav-search-btn:hover {
            color: var(--text-main);
            background: rgba(26, 24, 23, 0.05);
            transform: scale(1.05);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 38px;
            padding: 0 18px;
            background: var(--secondary);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            white-space: nowrap;
            transition: background-color 0.3s ease, transform 0.25s ease, box-shadow 0.3s ease;
            box-shadow: 0 2px 8px rgba(196, 62, 47, 0.2);
        }

        .nav-cta:hover {
            background: var(--secondary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(196, 62, 47, 0.28);
            color: #fff;
        }

        .nav-hamburger {
            display: none;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            color: var(--text-main);
            font-size: 18px;
            background: transparent;
            transition: background-color 0.3s ease;
        }

        .nav-hamburger:hover {
            background: rgba(26, 24, 23, 0.05);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 78px;
            left: 16px;
            right: 16px;
            z-index: 9998;
            background: #fff;
            border-radius: var(--radius-lg);
            box-shadow: 0 16px 40px rgba(26, 24, 23, 0.15);
            padding: 12px 8px;
            flex-direction: column;
            opacity: 0;
            transform: translateY(-12px);
            pointer-events: none;
            transition: opacity 0.3s ease, transform 0.3s ease;
        }

        .mobile-menu.open {
            opacity: 1;
            transform: translateY(0);
            pointer-events: auto;
        }

        .mobile-menu a {
            display: block;
            padding: 12px 18px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            border-radius: var(--radius-sm);
            transition: background-color 0.25s ease, color 0.25s ease;
        }

        .mobile-menu a:hover {
            background: var(--bg);
            color: var(--secondary);
        }

        .mobile-menu a.active {
            color: var(--secondary);
            font-weight: 600;
            background: rgba(196, 62, 47, 0.05);
        }

        @media (max-width: 1024px) {
            .nav-links {
                display: none;
            }
            .nav-hamburger {
                display: flex;
            }
            .mobile-menu {
                display: flex;
            }
        }

        @media (max-width: 640px) {
            .site-header {
                top: 10px;
            }
            .nav-dock {
                height: var(--nav-height-mobile);
                padding: 0 12px 0 10px;
                border-radius: var(--radius-pill);
                gap: 8px;
            }
            .nav-logo {
                font-size: 16px;
                gap: 7px;
            }
            .nav-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 13px;
            }
            .nav-cta {
                display: none;
            }
            .nav-search-btn {
                width: 34px;
                height: 34px;
                font-size: 13px;
            }
            .mobile-menu {
                top: 68px;
                left: 10px;
                right: 10px;
            }
        }

        /* ============ Hero ============ */
        .hero-section {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            padding: 160px 0 80px;
            background: var(--bg-alt);
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
            z-index: 0;
        }

        .hero-inner {
            position: relative;
            z-index: 1;
            width: 100%;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 7fr 5fr;
            gap: 48px;
            align-items: center;
        }

        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--secondary);
            letter-spacing: 0.04em;
            margin-bottom: 20px;
        }

        .hero-tag .tag-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--secondary);
            animation: pulse-dot 2s ease-in-out infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(0.7);
            }
        }

        .hero-title {
            font-size: clamp(40px, 5.5vw, 76px);
            font-weight: 800;
            line-height: 1.08;
            letter-spacing: -0.02em;
            color: var(--text-main);
            margin-bottom: 20px;
        }

        .hero-title .highlight {
            color: var(--secondary);
            position: relative;
        }

        .hero-title .highlight::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 0;
            right: 0;
            height: 4px;
            background: rgba(196, 62, 47, 0.2);
            border-radius: 2px;
            z-index: -1;
        }

        .hero-desc {
            font-size: 17px;
            line-height: 1.85;
            color: var(--text-sub);
            max-width: 560px;
            margin-bottom: 28px;
        }

        .hero-cta-row {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 20px;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            background: var(--secondary);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            transition: background-color 0.3s ease, transform 0.25s ease, box-shadow 0.3s ease;
            box-shadow: 0 4px 12px rgba(196, 62, 47, 0.2);
            min-height: 48px;
        }

        .btn-primary:hover {
            background: var(--secondary-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(196, 62, 47, 0.3);
            color: #fff;
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 6px rgba(196, 62, 47, 0.2);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 24px;
            background: transparent;
            color: var(--text-main);
            font-size: 15px;
            font-weight: 500;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            transition: border-color 0.3s ease, color 0.3s ease, background-color 0.3s ease, transform 0.25s ease;
            min-height: 48px;
        }

        .btn-secondary:hover {
            border-color: var(--secondary);
            color: var(--secondary);
            background: rgba(196, 62, 47, 0.04);
            transform: translateY(-2px);
        }

        .hero-data-row {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
        }

        .hero-data-item {
            display: flex;
            flex-direction: column;
        }

        .hero-data-item .data-number {
            font-family: var(--font-number);
            font-size: 24px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.3;
        }

        .hero-data-item .data-label {
            font-size: 12px;
            color: var(--text-weak);
            letter-spacing: 0.03em;
        }

        .hero-side {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .hero-benefit-card {
            background: var(--surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 20px 22px;
            box-shadow: var(--shadow-xs);
            transition: box-shadow 0.3s ease, transform 0.3s ease;
        }

        .hero-benefit-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .benefit-badge-row {
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
            margin-bottom: 14px;
        }

        .badge-soft {
            display: inline-flex;
            align-items: center;
            gap: 5px;
            padding: 5px 12px;
            background: rgba(196, 62, 47, 0.08);
            color: var(--secondary);
            font-size: 12px;
            font-weight: 600;
            border-radius: var(--radius-pill);
            letter-spacing: 0.02em;
        }

        .badge-soft .badge-icon {
            font-size: 11px;
        }

        .hero-benefit-card .benefit-title {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-main);
        }

        .hero-benefit-card .benefit-desc {
            font-size: 13px;
            line-height: 1.7;
            color: var(--text-sub);
        }

        .hero-qualify-row {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-weak);
        }

        .hero-qualify-row .qualify-icon {
            color: var(--accent);
            font-size: 14px;
        }

        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .hero-desc {
                max-width: 100%;
            }
            .hero-section {
                padding: 140px 0 60px;
            }
        }

        @media (max-width: 640px) {
            .hero-section {
                padding: 120px 0 40px;
                min-height: auto;
            }
            .hero-title {
                font-size: 36px;
                line-height: 1.15;
            }
            .hero-desc {
                font-size: 15px;
                line-height: 1.75;
            }
            .btn-primary,
            .btn-secondary {
                width: 100%;
                padding: 13px 20px;
                font-size: 14px;
            }
            .hero-cta-row {
                flex-direction: column;
                width: 100%;
            }
            .hero-data-item .data-number {
                font-size: 20px;
            }
        }

        /* ============ 通用 Section ============ */
        .section {
            padding: var(--section-spacing-desktop) 0;
            position: relative;
        }

        .section-alt {
            background: var(--bg-alt);
        }

        .section-dark {
            background: var(--primary);
            color: var(--text-inverse);
        }

        .section-head {
            margin-bottom: 48px;
            max-width: 700px;
        }

        .section-head .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            color: var(--secondary);
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-head .section-label::before {
            content: '';
            width: 24px;
            height: 1px;
            background: var(--secondary);
        }

        .section-head .section-title {
            font-size: clamp(28px, 3.2vw, 40px);
            font-weight: 700;
            letter-spacing: -0.01em;
            line-height: 1.2;
            margin-bottom: 12px;
        }

        .section-head .section-desc {
            font-size: 16px;
            line-height: 1.85;
            color: var(--text-sub);
            margin-bottom: 0;
        }

        .section-head.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .section-head.center .section-label::before {
            display: none;
        }

        .section-head.center .section-label {
            justify-content: center;
        }

        @media (max-width: 640px) {
            .section {
                padding: var(--section-spacing-mobile) 0;
            }
            .section-head {
                margin-bottom: 32px;
            }
            .section-head .section-title {
                font-size: 28px;
            }
        }

        /* ============ 指标看板 ============ */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 0;
            background: var(--surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-xs);
        }

        .metric-cell {
            padding: 28px 20px;
            text-align: center;
            border-right: 1px solid var(--border-lighter);
            transition: background-color 0.3s ease;
        }

        .metric-cell:last-child {
            border-right: none;
        }

        .metric-cell:hover {
            background: var(--bg-alt);
        }

        .metric-icon {
            font-size: 20px;
            color: var(--accent);
            margin-bottom: 10px;
        }

        .metric-number {
            font-family: var(--font-number);
            font-size: 36px;
            font-weight: 700;
            line-height: 1.2;
            color: var(--text-main);
            margin-bottom: 4px;
            letter-spacing: -0.01em;
        }

        .metric-number .unit {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-sub);
            margin-left: 2px;
        }

        .metric-label {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-sub);
            margin-bottom: 3px;
        }

        .metric-sub {
            font-size: 11px;
            color: var(--text-weak);
            letter-spacing: 0.02em;
        }

        .metrics-source {
            font-size: 12px;
            color: var(--text-weak);
            margin-top: 12px;
            text-align: right;
            letter-spacing: 0.02em;
        }

        @media (max-width: 1024px) {
            .metrics-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .metric-cell {
                border-right: 1px solid var(--border-lighter);
                border-bottom: 1px solid var(--border-lighter);
            }
            .metric-cell:nth-child(3n) {
                border-right: none;
            }
            .metric-cell:nth-last-child(-n+2) {
                border-bottom: none;
            }
        }

        @media (max-width: 640px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .metric-cell {
                border-right: 1px solid var(--border-lighter);
                border-bottom: 1px solid var(--border-lighter);
            }
            .metric-cell:nth-child(2n) {
                border-right: none;
            }
            .metric-cell:nth-last-child(-n+1) {
                border-bottom: none;
            }
            .metric-cell:nth-last-child(-n+2) {
                border-bottom: 1px solid var(--border-lighter);
            }
            .metric-cell:last-child {
                border-bottom: none;
            }
            .metric-number {
                font-size: 26px;
            }
            .metric-cell {
                padding: 18px 12px;
            }
        }

        /* ============ 卖点三连 ============ */
        .selling-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .selling-card {
            background: var(--surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px 26px;
            transition: box-shadow 0.3s ease, transform 0.3s ease;
            position: relative;
            overflow: hidden;
        }

        .selling-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: var(--secondary);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.4s ease;
        }

        .selling-card:hover::before {
            transform: scaleX(1);
        }

        .selling-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .selling-icon {
            width: 48px;
            height: 48px;
            border-radius: var(--radius-md);
            background: rgba(196, 62, 47, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--secondary);
            margin-bottom: 16px;
            transition: background-color 0.3s ease;
        }

        .selling-card:hover .selling-icon {
            background: rgba(196, 62, 47, 0.14);
        }

        .selling-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--text-main);
            line-height: 1.4;
        }

        .selling-card p {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-sub);
            margin-bottom: 0;
        }

        @media (max-width: 1024px) {
            .selling-grid {
                grid-template-columns: repeat(3, 1fr);
                gap: 16px;
            }
        }

        @media (max-width: 768px) {
            .selling-grid {
                grid-template-columns: 1fr;
            }
            .selling-card {
                padding: 22px 20px;
            }
        }

        /* ============ 品牌介绍 ============ */
        .brand-intro-grid {
            display: grid;
            grid-template-columns: 6fr 6fr;
            gap: 48px;
            align-items: center;
        }

        .brand-intro-text .brand-headline {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 16px;
        }

        .brand-intro-text .brand-headline::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 48px;
            height: 2px;
            background: var(--secondary);
            border-radius: 1px;
        }

        .brand-intro-text p {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-sub);
            margin-bottom: 14px;
        }

        .brand-intro-text p strong {
            color: var(--text-main);
            font-weight: 600;
        }

        .brand-intro-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-xs);
            aspect-ratio: 4 / 3;
            background: var(--bg-alt);
        }

        .brand-intro-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        @media (max-width: 768px) {
            .brand-intro-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .brand-intro-text .brand-headline {
                font-size: 22px;
            }
        }

        /* ============ 服务矩阵 ============ */
        .service-matrix {
            display: grid;
            grid-template-columns: repeat(12, 1fr);
            gap: 20px;
        }

        .service-card {
            background: var(--surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 26px 24px;
            transition: box-shadow 0.3s ease, transform 0.3s ease;
            display: flex;
            flex-direction: column;
            position: relative;
        }

        .service-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .service-card.large {
            grid-column: span 7;
        }

        .service-card.medium {
            grid-column: span 5;
        }

        .service-card.small {
            grid-column: span 4;
        }

        .service-icon {
            width: 44px;
            height: 44px;
            border-radius: var(--radius-md);
            background: rgba(26, 24, 23, 0.06);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 17px;
            color: var(--text-main);
            margin-bottom: 14px;
            transition: background-color 0.3s ease, color 0.3s ease;
        }

        .service-card:hover .service-icon {
            background: var(--primary);
            color: var(--text-inverse);
        }

        .service-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 8px;
            line-height: 1.35;
            color: var(--text-main);
        }

        .service-card p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-sub);
            margin-bottom: 14px;
            flex: 1;
        }

        .service-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--secondary);
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: gap 0.25s ease, color 0.25s ease;
        }

        .service-link:hover {
            color: var(--secondary-hover);
            gap: 9px;
        }

        @media (max-width: 768px) {
            .service-matrix {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .service-card.large,
            .service-card.medium,
            .service-card.small {
                grid-column: span 1;
            }
            .service-card {
                padding: 20px 18px;
            }
        }

        /* ============ 场景演示 ============ */
        .scenario-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .scenario-card {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            background: var(--surface);
            transition: box-shadow 0.3s ease, transform 0.3s ease;
        }

        .scenario-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .scenario-image {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-alt);
            position: relative;
        }

        .scenario-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .scenario-card:hover .scenario-image img {
            transform: scale(1.04);
        }

        .scenario-body {
            padding: 20px 22px;
        }

        .scenario-tag {
            font-size: 12px;
            font-weight: 600;
            color: var(--secondary);
            letter-spacing: 0.04em;
            margin-bottom: 8px;
            display: block;
        }

        .scenario-body h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-main);
            line-height: 1.4;
        }

        .scenario-body p {
            font-size: 13px;
            line-height: 1.7;
            color: var(--text-sub);
            margin-bottom: 0;
        }

        @media (max-width: 768px) {
            .scenario-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
        }

        /* ============ 结果对比 ============ */
        .comparison-container {
            background: var(--surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-xs);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            table-layout: fixed;
        }

        .comparison-table thead th {
            padding: 20px 24px;
            font-size: 14px;
            font-weight: 700;
            text-align: left;
            color: var(--text-main);
            background: var(--bg-alt);
            border-bottom: 1px solid var(--border-light);
        }

        .comparison-table thead th:first-child {
            width: 28%;
        }

        .comparison-table thead th.highlight-col {
            color: var(--secondary);
            background: rgba(196, 62, 47, 0.04);
        }

        .comparison-table tbody td {
            padding: 16px 24px;
            font-size: 14px;
            line-height: 1.6;
            color: var(--text-sub);
            border-bottom: 1px solid var(--border-lighter);
            vertical-align: middle;
        }

        .comparison-table tbody td:first-child {
            font-weight: 600;
            color: var(--text-main);
        }

        .comparison-table tbody td.highlight-col {
            background: rgba(196, 62, 47, 0.03);
            font-weight: 600;
            color: var(--text-main);
        }

        .comparison-table tbody td .change-up {
            color: var(--secondary);
            font-weight: 700;
            font-family: var(--font-number);
            font-size: 15px;
        }

        .comparison-table tbody tr:last-child td {
            border-bottom: none;
        }

        .comparison-note {
            padding: 12px 24px;
            font-size: 12px;
            color: var(--text-weak);
            background: var(--bg-alt);
            text-align: right;
        }

        @media (max-width: 768px) {
            .comparison-table thead th {
                padding: 14px 12px;
                font-size: 12px;
            }
            .comparison-table tbody td {
                padding: 12px 12px;
                font-size: 12px;
            }
            .comparison-container {
                overflow-x: auto;
                -webkit-overflow-scrolling: touch;
            }
        }

        /* ============ 深度内容 ============ */
        .deep-content-block {
            display: grid;
            grid-template-columns: 6fr 6fr;
            gap: 40px;
            align-items: start;
            margin-bottom: 48px;
        }

        .deep-content-block:last-child {
            margin-bottom: 0;
        }

        .deep-content-block.reverse {
            grid-template-columns: 6fr 6fr;
            direction: rtl;
        }

        .deep-content-block.reverse>* {
            direction: ltr;
        }

        .deep-text h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
            line-height: 1.3;
        }

        .deep-text h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 12px;
            margin-top: 20px;
            line-height: 1.4;
        }

        .deep-text p {
            font-size: 15px;
            line-height: 1.9;
            color: var(--text-sub);
            margin-bottom: 14px;
        }

        .deep-text p strong {
            color: var(--text-main);
            font-weight: 600;
        }

        .deep-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            aspect-ratio: 4 / 3;
            background: var(--bg-alt);
            box-shadow: var(--shadow-xs);
        }

        .deep-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .data-highlight-bar {
            background: var(--primary);
            padding: 20px 24px;
            border-radius: var(--radius-md);
            margin: 18px 0;
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .data-highlight-bar .highlight-number {
            font-family: var(--font-number);
            font-size: 32px;
            font-weight: 700;
            color: var(--text-inverse);
            line-height: 1.2;
        }

        .data-highlight-bar .highlight-label {
            font-size: 13px;
            color: var(--text-inverse-sub);
            line-height: 1.5;
        }

        .quote-block {
            border-left: 3px solid var(--secondary);
            padding: 16px 20px;
            background: rgba(196, 62, 47, 0.04);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            margin: 16px 0;
        }

        .quote-block p {
            font-size: 15px;
            font-style: italic;
            line-height: 1.8;
            color: var(--text-main);
            margin-bottom: 0;
        }

        @media (max-width: 768px) {
            .deep-content-block {
                grid-template-columns: 1fr;
                gap: 20px;
                margin-bottom: 32px;
            }
            .deep-content-block.reverse {
                grid-template-columns: 1fr;
                direction: ltr;
            }
            .deep-text h2 {
                font-size: 22px;
            }
        }

        /* ============ 社会认同 ============ */
        .social-proof-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .proof-card {
            background: var(--surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 22px 20px;
            text-align: center;
            transition: box-shadow 0.3s ease, transform 0.3s ease;
        }

        .proof-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }

        .proof-number {
            font-family: var(--font-number);
            font-size: 32px;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1.2;
            margin-bottom: 6px;
        }

        .proof-label {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 4px;
        }

        .proof-sub {
            font-size: 11px;
            color: var(--text-weak);
        }

        @media (max-width: 768px) {
            .social-proof-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
        }

        /* ============ 新闻中心 ============ */
        .news-layout {
            display: grid;
            grid-template-columns: 7fr 5fr;
            gap: 32px;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 0;
        }

        .news-item {
            padding: 20px 0;
            border-bottom: 1px solid var(--border-lighter);
            transition: background-color 0.3s ease;
        }

        .news-item:first-child {
            padding-top: 0;
        }

        .news-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .news-date {
            font-size: 12px;
            color: var(--text-weak);
            letter-spacing: 0.03em;
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .news-date::before {
            content: '';
            width: 20px;
            height: 1px;
            background: var(--border-light);
        }

        .news-item h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 6px;
            line-height: 1.4;
        }

        .news-item h3 a {
            color: var(--text-main);
            transition: color 0.25s ease;
        }

        .news-item h3 a:hover {
            color: var(--secondary);
        }

        .news-item .news-summary {
            font-size: 13px;
            line-height: 1.7;
            color: var(--text-sub);
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-read-more {
            font-size: 12px;
            font-weight: 600;
            color: var(--secondary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            transition: gap 0.25s ease, color 0.25s ease;
        }

        .news-read-more:hover {
            color: var(--secondary-hover);
            gap: 8px;
        }

        .news-sidebar {
            background: var(--surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 24px;
            align-self: start;
            position: sticky;
            top: 100px;
        }

        .news-sidebar h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--text-main);
        }

        .hot-list {
            list-style: none;
            padding: 0;
            margin: 0 0 20px 0;
        }

        .hot-list li {
            padding: 8px 0;
            border-bottom: 1px solid var(--border-lighter);
        }

        .hot-list li:last-child {
            border-bottom: none;
        }

        .hot-list a {
            font-size: 13px;
            color: var(--text-sub);
            line-height: 1.5;
            display: block;
            transition: color 0.25s ease;
        }

        .hot-list a:hover {
            color: var(--secondary);
        }

        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-cloud a {
            display: inline-block;
            padding: 5px 12px;
            font-size: 12px;
            color: var(--text-sub);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-pill);
            transition: border-color 0.25s ease, color 0.25s ease, background-color 0.25s ease;
        }

        .tag-cloud a:hover {
            border-color: var(--secondary);
            color: var(--secondary);
            background: rgba(196, 62, 47, 0.04);
        }

        @media (max-width: 768px) {
            .news-layout {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .news-sidebar {
                position: static;
            }
            .news-item h3 {
                font-size: 16px;
            }
        }

        /* ============ 套餐对比 ============ */
        .pricing-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            align-items: stretch;
        }

        .pricing-card {
            background: var(--surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            text-align: center;
            display: flex;
            flex-direction: column;
            transition: box-shadow 0.3s ease, transform 0.3s ease;
            position: relative;
        }

        .pricing-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .pricing-card.featured {
            border-color: var(--secondary);
            box-shadow: 0 8px 30px rgba(196, 62, 47, 0.12);
        }

        .pricing-card.featured .featured-badge {
            position: absolute;
            top: -12px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--secondary);
            color: #fff;
            font-size: 11px;
            font-weight: 600;
            padding: 4px 16px;
            border-radius: var(--radius-pill);
            letter-spacing: 0.04em;
            white-space: nowrap;
        }

        .pricing-name {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .pricing-price {
            font-family: var(--font-number);
            font-size: 36px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 4px;
            line-height: 1.2;
        }

        .pricing-price .currency {
            font-size: 18px;
            font-weight: 600;
        }

        .pricing-period {
            font-size: 12px;
            color: var(--text-weak);
            margin-bottom: 16px;
        }

        .pricing-features {
            list-style: none;
            padding: 0;
            margin: 0 0 20px 0;
            text-align: left;
            flex: 1;
        }

        .pricing-features li {
            font-size: 13px;
            line-height: 1.6;
            color: var(--text-sub);
            padding: 5px 0;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .pricing-features li .feature-check {
            color: var(--secondary);
            font-size: 12px;
            flex-shrink: 0;
        }

        .pricing-card .btn-primary {
            width: 100%;
            padding: 12px 20px;
            font-size: 14px;
            min-height: 44px;
        }

        @media (max-width: 768px) {
            .pricing-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .pricing-card.featured {
                order: -1;
            }
        }

        /* ============ 热门专题 ============ */
        .topics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .topic-card {
            background: var(--surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            padding: 18px 16px;
            text-align: center;
            transition: border-color 0.3s ease, background-color 0.3s ease, transform 0.3s ease;
            cursor: pointer;
        }

        .topic-card:hover {
            border-color: var(--secondary);
            background: rgba(196, 62, 47, 0.03);
            transform: translateY(-2px);
        }

        .topic-card .topic-icon {
            font-size: 20px;
            color: var(--secondary);
            margin-bottom: 8px;
        }

        .topic-card .topic-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
        }

        @media (max-width: 768px) {
            .topics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
        }

        /* ============ FAQ ============ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--border-light);
            transition: background-color 0.3s ease;
        }

        .faq-item:first-child {
            border-top: 1px solid var(--border-light);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 18px 4px;
            background: transparent;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            text-align: left;
            transition: color 0.25s ease;
            cursor: pointer;
        }

        .faq-question:hover {
            color: var(--secondary);
        }

        .faq-index {
            font-family: var(--font-number);
            font-size: 13px;
            color: var(--accent);
            font-weight: 700;
            flex-shrink: 0;
            width: 28px;
        }

        .faq-question-text {
            flex: 1;
        }

        .faq-arrow {
            font-size: 12px;
            color: var(--text-weak);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--secondary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease, padding 0.35s ease;
            padding-left: 42px;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 18px;
        }

        .faq-answer p {
            font-size: 14px;
            line-height: 1.85;
            color: var(--text-sub);
            margin-bottom: 0;
        }

        @media (max-width: 640px) {
            .faq-question {
                font-size: 14px;
                gap: 10px;
                padding: 15px 2px;
            }
            .faq-index {
                width: 22px;
                font-size: 11px;
            }
            .faq-answer {
                padding-left: 32px;
            }
            .faq-answer p {
                font-size: 13px;
            }
        }

        /* ============ 转化表单 ============ */
        .form-section {
            background: var(--primary);
            color: var(--text-inverse);
            padding: 80px 0;
            position: relative;
        }

        .form-section .section-head .section-title {
            color: var(--text-inverse);
        }

        .form-section .section-head .section-desc {
            color: var(--text-inverse-sub);
        }

        .form-wrapper {
            display: grid;
            grid-template-columns: 7fr 5fr;
            gap: 40px;
            align-items: start;
        }

        .custom-form {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-lg);
        }

        .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            margin-bottom: 16px;
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            padding: 12px 14px;
            font-size: 14px;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            background: var(--bg-alt);
            color: var(--text-main);
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
            appearance: none;
            -webkit-appearance: none;
            -moz-appearance: none;
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--secondary);
            box-shadow: 0 0 0 3px rgba(196, 62, 47, 0.15);
        }

        .form-group textarea {
            min-height: 120px;
            resize: vertical;
            font-family: inherit;
        }

        .form-group select {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23555' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
            padding-right: 36px;
        }

        .form-side-info {
            color: var(--text-inverse-sub);
        }

        .form-side-info h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-inverse);
            margin-bottom: 12px;
        }

        .form-side-info p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-inverse-sub);
            margin-bottom: 16px;
        }

        .contact-info-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .contact-info-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-inverse-sub);
            padding: 6px 0;
        }

        .contact-info-list li .contact-icon {
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: rgba(246, 243, 238, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: var(--accent);
            flex-shrink: 0;
        }

        .form-submit-btn {
            width: 100%;
            padding: 14px 24px;
            background: var(--secondary);
            color: #fff;
            font-size: 15px;
            font-weight: 600;
            border-radius: var(--radius-sm);
            border: none;
            min-height: 50px;
            transition: background-color 0.3s ease, transform 0.25s ease, box-shadow 0.3s ease;
            cursor: pointer;
        }

        .form-submit-btn:hover {
            background: var(--secondary-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(196, 62, 47, 0.3);
        }

        .form-submit-btn:active {
            transform: translateY(0);
        }

        @media (max-width: 768px) {
            .form-wrapper {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .form-row {
                grid-template-columns: 1fr;
                gap: 0;
            }
            .custom-form {
                padding: 22px 18px;
            }
            .form-section {
                padding: 56px 0;
            }
        }

        /* ============ Footer ============ */
        .site-footer {
            background: var(--primary);
            color: var(--text-inverse);
            padding: 60px 0 0;
            border-top: 1px solid var(--border-inverse);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 3fr 2fr 2fr 3fr;
            gap: 40px;
            padding-bottom: 40px;
        }

        .footer-brand .footer-logo {
            font-size: 22px;
            font-weight: 800;
            color: var(--text-inverse);
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-brand .footer-logo .logo-icon {
            width: 34px;
            height: 34px;
            border-radius: 50%;
            background: var(--secondary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: #fff;
        }

        .footer-brand p {
            font-size: 13px;
            line-height: 1.8;
            color: var(--text-inverse-sub);
            margin-bottom: 0;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-inverse);
            margin-bottom: 14px;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            padding: 5px 0;
        }

        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-inverse-sub);
            transition: color 0.25s ease;
        }

        .footer-col ul li a:hover {
            color: var(--text-inverse);
        }

        .footer-col .footer-contact-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-inverse-sub);
            padding: 4px 0;
        }

        .footer-col .footer-contact-item .contact-icon {
            font-size: 12px;
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid var(--border-inverse);
            padding: 18px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom .copyright {
            font-size: 12px;
            color: var(--text-inverse-sub);
        }

        .footer-bottom .footer-links {
            display: flex;
            align-items: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        .footer-bottom .footer-links a {
            font-size: 12px;
            color: var(--text-inverse-sub);
            transition: color 0.25s ease;
        }

        .footer-bottom .footer-links a:hover {
            color: var(--text-inverse);
        }

        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
                padding-bottom: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
            .footer-bottom .footer-links {
                justify-content: center;
            }
            .site-footer {
                padding: 40px 0 0;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }

        /* ============ 动画与工具 ============ */
        .reveal-fade {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }

        .reveal-fade.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .divider-line {
            height: 1px;
            background: var(--border-lighter);
            margin: 0;
        }

        .divider-expand {
            height: 2px;
            background: var(--secondary);
            width: 0;
            transition: width 0.8s ease;
            margin: 0;
            border: none;
            border-radius: 1px;
        }

        .divider-expand.visible {
            width: 100%;
        }

        @keyframes fadeUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            white-space: nowrap;
            border-width: 0;
        }

/* roulang page: category2 */
:root {
            --primary: #1A1817;
            --secondary: #C43E2F;
            --secondary-hover: #A63427;
            --bg: #F6F3EE;
            --bg-alt: #FBFAF7;
            --surface: #FFFFFF;
            --accent: #A8855C;
            --text-main: #1A1817;
            --text-sub: #5C5552;
            --text-weak: #8C837E;
            --text-inverse: #F6F3EE;
            --text-inverse-sub: #B8B0A9;
            --border-light: rgba(26, 24, 23, 0.08);
            --border-lighter: rgba(26, 24, 23, 0.06);
            --border-inverse: rgba(246, 243, 238, 0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-pill: 999px;
            --shadow-xs: 0 2px 8px rgba(26, 24, 23, 0.04);
            --shadow-md: 0 8px 24px rgba(26, 24, 23, 0.08);
            --shadow-lg: 0 16px 40px rgba(26, 24, 23, 0.12);
            --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --font-number: "DIN Alternate", "Roboto Mono", "SF Mono", monospace;
            --container-max: 1200px;
            --section-spacing-desktop: 120px;
            --section-spacing-mobile: 72px;
            --nav-height: 60px;
            --nav-height-mobile: 54px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            font-weight: 400;
            min-height: 100vh;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease, background-color 0.3s ease, transform 0.25s ease, box-shadow 0.3s ease;
        }

        a:hover {
            text-decoration: none;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }

        ul,
        ol {
            list-style: none;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 639px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ============ 浮动 Dock 导航 ============ */
        .site-header {
            position: fixed;
            top: 20px;
            left: 0;
            right: 0;
            z-index: 9999;
            display: flex;
            justify-content: center;
            pointer-events: none;
            transition: top 0.3s ease;
        }

        .site-header.scrolled {
            top: 8px;
        }

        .nav-dock {
            pointer-events: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            max-width: 1140px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid rgba(26, 24, 23, 0.08);
            border-radius: var(--radius-pill);
            padding: 0 20px 0 16px;
            height: var(--nav-height);
            box-shadow: 0 4px 20px rgba(26, 24, 23, 0.05);
            transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .nav-dock.scrolled {
            background: rgba(255, 255, 255, 0.95);
            box-shadow: 0 8px 30px rgba(26, 24, 23, 0.09);
            border-color: rgba(26, 24, 23, 0.12);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-weight: 800;
            font-size: 18px;
            color: var(--text-main);
            letter-spacing: -0.01em;
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-inverse);
            font-size: 16px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2px;
            list-style: none;
            flex: 1;
            justify-content: center;
            flex-wrap: nowrap;
            overflow: hidden;
        }

        .nav-links li {
            flex-shrink: 0;
        }

        .nav-links a {
            display: inline-block;
            padding: 4px 13px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-sub);
            border-radius: var(--radius-pill);
            position: relative;
            transition: color 0.25s ease, background-color 0.3s ease;
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--text-main);
            background: rgba(26, 24, 23, 0.04);
        }

        .nav-links a.active {
            color: var(--secondary);
            font-weight: 600;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--secondary);
            border-radius: 3px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .nav-search-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-sub);
            transition: color 0.25s ease, background-color 0.3s ease, transform 0.25s ease;
        }

        .nav-search-btn:hover {
            color: var(--text-main);
            background: rgba(26, 24, 23, 0.05);
            transform: scale(1.06);
        }

        .nav-cta {
            display: inline-block;
            padding: 8px 18px;
            font-size: 13px;
            font-weight: 600;
            color: #fff;
            background: var(--secondary);
            border-radius: var(--radius-pill);
            transition: background-color 0.3s ease, transform 0.25s ease, box-shadow 0.3s ease;
            white-space: nowrap;
        }

        .nav-cta:hover {
            background: var(--secondary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 16px rgba(196, 62, 47, 0.25);
            color: #fff;
        }

        .nav-hamburger {
            display: none;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            color: var(--text-main);
            font-size: 18px;
            transition: background-color 0.3s ease;
        }

        .nav-hamburger:hover {
            background: rgba(26, 24, 23, 0.05);
        }

        .mobile-menu {
            display: none;
            pointer-events: auto;
            width: 100%;
            max-width: 1140px;
            margin: 8px auto 0;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid rgba(26, 24, 23, 0.08);
            border-radius: var(--radius-lg);
            padding: 16px 20px;
            box-shadow: 0 8px 30px rgba(26, 24, 23, 0.1);
        }

        .mobile-menu.open {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .mobile-menu a {
            display: block;
            padding: 10px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-sub);
            border-radius: var(--radius-sm);
            transition: background-color 0.3s ease, color 0.25s ease;
        }

        .mobile-menu a:hover {
            background: rgba(26, 24, 23, 0.04);
            color: var(--text-main);
        }

        .mobile-menu a.active {
            color: var(--secondary);
            font-weight: 600;
            background: rgba(196, 62, 47, 0.06);
        }

        @media (max-width: 1023px) {
            .nav-links {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-hamburger {
                display: flex;
            }
            .nav-dock {
                padding: 0 14px 0 16px;
            }
        }

        @media (max-width: 639px) {
            .site-header {
                top: 12px;
            }
            .nav-dock {
                height: var(--nav-height-mobile);
                border-radius: 28px;
            }
            .nav-logo {
                font-size: 16px;
            }
            .nav-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }
        }

        /* ============ 页面主体间距 ============ */
        main {
            padding-top: 120px;
        }

        @media (max-width: 639px) {
            main {
                padding-top: 90px;
            }
        }

        .section {
            padding: 72px 0;
        }

        .section-alt {
            background: var(--bg-alt);
        }

        @media (max-width: 639px) {
            .section {
                padding: 48px 0;
            }
        }

        /* ============ Hero ============ */
        .page-hero {
            padding: 48px 0 32px;
            background: var(--bg);
            border-bottom: 1px solid var(--border-lighter);
        }

        .page-hero-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .page-hero-title {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.02em;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .page-hero-title .accent {
            color: var(--secondary);
        }

        .page-hero-sub {
            font-size: 17px;
            color: var(--text-sub);
            line-height: 1.9;
            max-width: 560px;
            margin-bottom: 28px;
        }

        .page-hero-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            position: relative;
            min-height: 300px;
            background: #ddd;
        }

        .page-hero-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            top: 0;
            left: 0;
        }

        .hero-stat-strip {
            display: flex;
            gap: 28px;
            flex-wrap: wrap;
            margin-top: 8px;
        }

        .hero-stat-item {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .hero-stat-num {
            font-family: var(--font-number);
            font-size: 28px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1;
        }

        .hero-stat-label {
            font-size: 13px;
            color: var(--text-weak);
            line-height: 1.3;
        }

        @media (max-width: 1023px) {
            .page-hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .page-hero-title {
                font-size: 40px;
            }
        }

        @media (max-width: 639px) {
            .page-hero-title {
                font-size: 32px;
            }
            .page-hero-sub {
                font-size: 15px;
            }
            .page-hero-image {
                min-height: 200px;
            }
            .hero-stat-strip {
                gap: 16px;
            }
            .hero-stat-num {
                font-size: 22px;
            }
        }

        /* ============ 实时赛事看板 ============ */
        .live-board {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            background: var(--surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-xs);
            margin-top: 40px;
        }

        .live-board-item {
            padding: 22px 24px;
            text-align: center;
            border-right: 1px solid var(--border-lighter);
        }

        .live-board-item:last-child {
            border-right: none;
        }

        .live-board-num {
            font-family: var(--font-number);
            font-size: 38px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1;
            margin-bottom: 6px;
        }

        .live-board-num.rise {
            color: var(--secondary);
        }

        .live-board-label {
            font-size: 13px;
            color: var(--text-weak);
            letter-spacing: 0.02em;
        }

        @media (max-width: 767px) {
            .live-board {
                grid-template-columns: repeat(2, 1fr);
                gap: 0;
            }
            .live-board-item {
                border-right: 1px solid var(--border-lighter);
                border-bottom: 1px solid var(--border-lighter);
                padding: 18px 16px;
            }
            .live-board-item:nth-child(2n) {
                border-right: none;
            }
            .live-board-item:nth-child(n+3) {
                border-bottom: none;
            }
            .live-board-num {
                font-size: 28px;
            }
        }

        /* ============ 筛选器 + 表格 ============ */
        .filter-bar {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }

        .filter-bar label {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-sub);
            white-space: nowrap;
        }

        .filter-bar select {
            padding: 10px 16px;
            font-size: 14px;
            color: var(--text-main);
            background: var(--surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            outline: none;
            cursor: pointer;
            min-width: 140px;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
            appearance: none;
            -webkit-appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235C5552' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
            padding-right: 36px;
        }

        .filter-bar select:focus {
            border-color: var(--secondary);
            box-shadow: 0 0 0 2px rgba(196, 62, 47, 0.15);
        }

        .filter-btn {
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 500;
            color: #fff;
            background: var(--primary);
            border-radius: var(--radius-sm);
            transition: background-color 0.3s ease, transform 0.25s ease;
            white-space: nowrap;
        }

        .filter-btn:hover {
            background: var(--secondary);
            transform: translateY(-1px);
        }

        .table-wrapper {
            overflow-x: auto;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            background: var(--surface);
            box-shadow: var(--shadow-xs);
        }

        .data-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 15px;
            min-width: 800px;
        }

        .data-table th {
            background: var(--primary);
            color: var(--text-inverse);
            font-weight: 600;
            font-size: 13px;
            text-align: left;
            padding: 14px 18px;
            letter-spacing: 0.03em;
            white-space: nowrap;
        }

        .data-table td {
            padding: 14px 18px;
            border-bottom: 1px solid var(--border-lighter);
            color: var(--text-sub);
            font-size: 14px;
            white-space: nowrap;
        }

        .data-table tbody tr:last-child td {
            border-bottom: none;
        }

        .data-table tbody tr {
            transition: background-color 0.25s ease;
        }

        .data-table tbody tr:hover {
            background: rgba(196, 62, 47, 0.04);
        }

        .data-table .match-name {
            font-weight: 600;
            color: var(--text-main);
        }

        .data-table .status-tag {
            display: inline-block;
            padding: 3px 10px;
            border-radius: var(--radius-pill);
            font-size: 12px;
            font-weight: 500;
            background: rgba(168, 133, 92, 0.12);
            color: var(--accent);
            white-space: nowrap;
        }

        .data-table .status-tag.live {
            background: rgba(196, 62, 47, 0.1);
            color: var(--secondary);
        }

        .data-table .status-tag.upcoming {
            background: rgba(26, 24, 23, 0.06);
            color: var(--text-sub);
        }

        /* ============ 数据可视化 ============ */
        .viz-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 28px;
        }

        .viz-card {
            background: var(--surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-xs);
        }

        .viz-card-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
        }

        .viz-card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
        }

        .viz-card-badge {
            font-size: 12px;
            color: var(--text-weak);
            letter-spacing: 0.03em;
        }

        .chart-bars {
            display: flex;
            align-items: flex-end;
            gap: 12px;
            height: 200px;
            padding-top: 10px;
        }

        .chart-bar-group {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            height: 100%;
            justify-content: flex-end;
        }

        .chart-bar {
            width: 100%;
            max-width: 40px;
            border-radius: 4px 4px 0 0;
            background: var(--primary);
            transition: height 0.6s ease-out, background-color 0.3s ease;
            min-height: 8px;
        }

        .chart-bar.highlight {
            background: var(--secondary);
        }

        .chart-bar-label {
            font-size: 12px;
            color: var(--text-weak);
            white-space: nowrap;
        }

        .chart-bar-value {
            font-family: var(--font-number);
            font-size: 13px;
            font-weight: 600;
            color: var(--text-main);
        }

        .chart-line-wrap {
            position: relative;
            height: 200px;
            display: flex;
            align-items: flex-end;
            gap: 8px;
            padding-top: 10px;
        }

        .chart-line-group {
            flex: 1;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            height: 100%;
            justify-content: flex-end;
        }

        .chart-line-dot {
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--secondary);
            border: 2px solid #fff;
            box-shadow: 0 0 0 1px var(--secondary);
            transition: transform 0.3s ease;
        }

        .chart-line-dot:hover {
            transform: scale(1.4);
        }

        .chart-line-group .chart-bar-label {
            margin-top: 4px;
        }

        .export-btns {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-top: 24px;
        }

        .export-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 11px 20px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-main);
            background: var(--surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            transition: border-color 0.3s ease, color 0.3s ease, background-color 0.3s ease, transform 0.25s ease;
        }

        .export-btn:hover {
            border-color: var(--secondary);
            color: var(--secondary);
            transform: translateY(-2px);
        }

        .export-btn i {
            font-size: 14px;
        }

        @media (max-width: 767px) {
            .viz-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .viz-card {
                padding: 20px;
            }
            .chart-bars,
            .chart-line-wrap {
                height: 160px;
            }
        }

        /* ============ 深度内容区块 ============ */
        .content-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
            margin-bottom: 56px;
        }

        .content-block.reverse {
            direction: rtl;
        }

        .content-block.reverse>* {
            direction: ltr;
        }

        .content-block:last-child {
            margin-bottom: 0;
        }

        .content-text h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 16px;
            line-height: 1.3;
            letter-spacing: -0.01em;
        }

        .content-text h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-main);
            margin: 20px 0 8px;
            line-height: 1.4;
        }

        .content-text p {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.9;
            margin-bottom: 12px;
        }

        .content-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            background: #e8e4df;
            min-height: 240px;
            position: relative;
        }

        .content-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            position: absolute;
            top: 0;
            left: 0;
        }

        .data-highlight {
            display: inline-block;
            background: rgba(196, 62, 47, 0.08);
            color: var(--secondary);
            font-family: var(--font-number);
            font-size: 32px;
            font-weight: 700;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            margin: 12px 0;
            line-height: 1;
        }

        @media (max-width: 767px) {
            .content-block {
                grid-template-columns: 1fr;
                gap: 24px;
                margin-bottom: 40px;
            }
            .content-block.reverse {
                direction: ltr;
            }
            .content-text h2 {
                font-size: 22px;
            }
        }

        /* ============ 底部 CTA ============ */
        .cta-section {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 48px 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .cta-section-text h2 {
            font-size: 26px;
            font-weight: 700;
            color: var(--text-inverse);
            margin-bottom: 8px;
            line-height: 1.3;
        }

        .cta-section-text p {
            font-size: 15px;
            color: var(--text-inverse-sub);
            max-width: 480px;
            line-height: 1.8;
        }

        .cta-section-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            background: var(--secondary);
            border-radius: var(--radius-sm);
            transition: background-color 0.3s ease, transform 0.25s ease, box-shadow 0.3s ease;
            white-space: nowrap;
        }

        .cta-section-btn:hover {
            background: var(--secondary-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(196, 62, 47, 0.3);
            color: #fff;
        }

        @media (max-width: 639px) {
            .cta-section {
                padding: 32px 20px;
                flex-direction: column;
                align-items: flex-start;
                gap: 20px;
            }
            .cta-section-text h2 {
                font-size: 22px;
            }
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: var(--primary);
            color: var(--text-inverse);
            margin-top: 80px;
        }

        .footer-container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 56px 24px 24px;
        }

        .footer-main {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--border-inverse);
        }

        .footer-brand-col .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
            font-weight: 800;
            font-size: 18px;
            color: #fff;
        }

        .footer-brand-col .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            font-weight: 700;
            color: #fff;
        }

        .footer-about {
            font-size: 14px;
            color: var(--text-inverse-sub);
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-links h4 {
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }

        .footer-links a {
            display: block;
            font-size: 14px;
            color: var(--text-inverse-sub);
            margin-bottom: 10px;
            transition: color 0.25s ease, transform 0.25s ease;
        }

        .footer-links a:hover {
            color: #fff;
            transform: translateX(3px);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            flex-wrap: wrap;
            padding-top: 20px;
            font-size: 12px;
            color: var(--text-inverse-sub);
        }

        .footer-bottom a {
            color: var(--text-inverse-sub);
            transition: color 0.25s ease;
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        @media (max-width: 1023px) {
            .footer-main {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 639px) {
            .footer-main {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
        }

        /* ============ 动画 ============ */
        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .animate-in {
            animation: fadeInUp 0.7s ease-out both;
        }

        .animate-in.delay-1 {
            animation-delay: 0.1s;
        }
        .animate-in.delay-2 {
            animation-delay: 0.2s;
        }
        .animate-in.delay-3 {
            animation-delay: 0.3s;
        }

/* roulang page: category1 */
:root {
        --primary: #1A1817;
        --secondary: #C43E2F;
        --secondary-hover: #A63427;
        --bg: #F6F3EE;
        --bg-alt: #FBFAF7;
        --surface: #FFFFFF;
        --accent: #A8855C;
        --text-main: #1A1817;
        --text-sub: #5C5552;
        --text-weak: #8C837E;
        --text-inverse: #F6F3EE;
        --text-inverse-sub: #B8B0A9;
        --border-light: rgba(26, 24, 23, 0.08);
        --border-lighter: rgba(26, 24, 23, 0.06);
        --border-inverse: rgba(246, 243, 238, 0.15);
        --radius-sm: 8px;
        --radius-md: 12px;
        --radius-lg: 16px;
        --radius-pill: 999px;
        --shadow-xs: 0 2px 8px rgba(26, 24, 23, 0.04);
        --shadow-md: 0 8px 24px rgba(26, 24, 23, 0.08);
        --shadow-lg: 0 16px 40px rgba(26, 24, 23, 0.12);
        --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
        --font-number: "DIN Alternate", "Roboto Mono", "SF Mono", monospace;
        --container-max: 1200px;
        --section-spacing-desktop: 120px;
        --section-spacing-mobile: 72px;
        --nav-height: 60px;
        --nav-height-mobile: 54px;
    }

    * {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }

    html {
        scroll-behavior: smooth;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }

    body {
        font-family: var(--font-sans);
        background: var(--bg);
        color: var(--text-main);
        line-height: 1.8;
        font-size: 16px;
        font-weight: 400;
        min-height: 100vh;
        overflow-x: hidden;
        padding-top: calc(var(--nav-height) + 32px);
    }

    img {
        max-width: 100%;
        height: auto;
        display: block;
    }

    a {
        color: inherit;
        text-decoration: none;
        transition: color 0.25s ease, border-color 0.25s ease, background-color 0.3s ease, transform 0.25s ease, box-shadow 0.3s ease;
    }

    a:hover {
        text-decoration: none;
    }

    button,
    input,
    select,
    textarea {
        font-family: inherit;
        font-size: inherit;
        line-height: inherit;
    }

    button {
        cursor: pointer;
        border: none;
        background: none;
        font-family: inherit;
    }

    ul {
        list-style: none;
    }

    :focus-visible {
        outline: 2px solid rgba(196, 62, 47, 0.6);
        outline-offset: 2px;
    }

    .container-custom {
        max-width: var(--container-max);
        margin: 0 auto;
        padding-left: 24px;
        padding-right: 24px;
    }

    /* ============ 浮动 Dock 导航 ============ */
    .site-header {
        position: fixed;
        top: 20px;
        left: 0;
        right: 0;
        z-index: 9999;
        display: flex;
        justify-content: center;
        pointer-events: none;
        transition: top 0.3s ease;
    }

    .site-header.scrolled {
        top: 8px;
    }

    .nav-dock {
        pointer-events: auto;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        width: 100%;
        max-width: 1140px;
        margin: 0 auto;
        background: rgba(255, 255, 255, 0.88);
        backdrop-filter: blur(18px);
        -webkit-backdrop-filter: blur(18px);
        border: 1px solid rgba(26, 24, 23, 0.08);
        border-radius: var(--radius-pill);
        padding: 0 20px 0 16px;
        height: var(--nav-height);
        box-shadow: 0 4px 20px rgba(26, 24, 23, 0.05);
        transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    }

    .nav-dock.scrolled {
        background: rgba(255, 255, 255, 0.95);
        box-shadow: 0 8px 30px rgba(26, 24, 23, 0.09);
        border-color: rgba(26, 24, 23, 0.12);
    }

    .nav-logo {
        display: flex;
        align-items: center;
        gap: 10px;
        flex-shrink: 0;
        font-weight: 800;
        font-size: 18px;
        color: var(--text-main);
        letter-spacing: -0.01em;
    }

    .nav-logo .logo-icon {
        width: 36px;
        height: 36px;
        border-radius: 50%;
        background: var(--primary);
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--text-inverse);
        font-size: 16px;
        font-weight: 700;
        flex-shrink: 0;
    }

    .nav-links {
        display: flex;
        align-items: center;
        gap: 2px;
        flex: 1;
        justify-content: center;
        flex-wrap: nowrap;
        overflow: hidden;
    }

    .nav-links li {
        flex-shrink: 0;
    }

    .nav-links a {
        display: inline-block;
        padding: 4px 13px;
        font-size: 14px;
        font-weight: 500;
        color: var(--text-sub);
        border-radius: var(--radius-pill);
        position: relative;
        transition: color 0.25s ease, background-color 0.3s ease;
        white-space: nowrap;
    }

    .nav-links a:hover {
        color: var(--text-main);
        background: rgba(26, 24, 23, 0.04);
    }

    .nav-links a.active {
        color: var(--secondary);
        font-weight: 600;
    }

    .nav-links a.active::after {
        content: '';
        position: absolute;
        bottom: -1px;
        left: 50%;
        transform: translateX(-50%);
        width: 20px;
        height: 2px;
        background: var(--secondary);
        border-radius: 2px;
    }

    .nav-actions {
        display: flex;
        align-items: center;
        gap: 8px;
        flex-shrink: 0;
    }

    .nav-search-btn {
        width: 36px;
        height: 36px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        color: var(--text-sub);
        transition: color 0.3s ease, transform 0.3s ease, background 0.3s ease;
    }

    .nav-search-btn:hover {
        color: var(--text-main);
        transform: scale(1.04);
        background: rgba(26, 24, 23, 0.04);
    }

    .nav-cta {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background: var(--secondary);
        color: #fff;
        padding: 8px 18px;
        border-radius: var(--radius-pill);
        font-size: 14px;
        font-weight: 600;
        transition: background 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
        white-space: nowrap;
    }

    .nav-cta:hover {
        background: var(--secondary-hover);
        transform: translateY(-2px);
        box-shadow: 0 6px 16px rgba(196, 62, 47, 0.25);
    }

    .nav-hamburger {
        display: none;
        width: 36px;
        height: 36px;
        border-radius: 50%;
        align-items: center;
        justify-content: center;
        color: var(--text-main);
        font-size: 18px;
        transition: background 0.3s ease;
    }

    .nav-hamburger:hover {
        background: rgba(26, 24, 23, 0.04);
    }

    /* 移动端菜单 */
    .mobile-menu {
        display: none;
        position: absolute;
        top: calc(var(--nav-height) + 8px);
        left: 16px;
        right: 16px;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border: 1px solid rgba(26, 24, 23, 0.1);
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-lg);
        padding: 16px;
        z-index: 10000;
        flex-direction: column;
        gap: 4px;
        pointer-events: auto;
    }

    .mobile-menu.open {
        display: flex;
    }

    .mobile-menu a {
        display: block;
        padding: 12px 16px;
        font-size: 15px;
        font-weight: 500;
        color: var(--text-sub);
        border-radius: var(--radius-sm);
        transition: background 0.3s ease, color 0.3s ease;
    }

    .mobile-menu a:hover {
        color: var(--text-main);
        background: rgba(26, 24, 23, 0.04);
    }

    .mobile-menu a.active {
        color: var(--secondary);
        font-weight: 600;
        background: rgba(196, 62, 47, 0.06);
    }

    /* ============ Hero 区域 ============ */
    .news-hero {
        position: relative;
        border-radius: var(--radius-lg);
        overflow: hidden;
        margin-bottom: 48px;
        min-height: 300px;
        display: flex;
        align-items: flex-end;
        background: var(--primary);
        isolation: isolate;
    }

    .news-hero::before {
        content: '';
        position: absolute;
        inset: 0;
        background: linear-gradient(135deg, rgba(26, 24, 23, 0.9) 0%, rgba(26, 24, 23, 0.55) 45%, rgba(26, 24, 23, 0.25) 100%);
        z-index: 1;
    }

    .news-hero-bg {
        position: absolute;
        inset: 0;
        background-image: url('/assets/images/coverpic/cover-1.webp');
        background-size: cover;
        background-position: center;
        z-index: 0;
        filter: saturate(0.85);
    }

    .news-hero-content {
        position: relative;
        z-index: 2;
        padding: 48px 40px 40px;
        max-width: 720px;
    }

    .news-hero-tag {
        display: inline-flex;
        align-items: center;
        gap: 6px;
        background: rgba(196, 62, 47, 0.85);
        color: #fff;
        font-size: 12px;
        font-weight: 600;
        letter-spacing: 0.06em;
        padding: 6px 14px;
        border-radius: var(--radius-pill);
        margin-bottom: 16px;
        text-transform: uppercase;
    }

    .news-hero h1 {
        font-size: 44px;
        font-weight: 800;
        line-height: 1.15;
        letter-spacing: -0.02em;
        color: #fff;
        margin-bottom: 16px;
    }

    .news-hero p {
        font-size: 17px;
        line-height: 1.8;
        color: rgba(246, 243, 238, 0.85);
        max-width: 600px;
    }

    /* ============ 主内容区 ============ */
    .news-main {
        display: grid;
        grid-template-columns: 1fr 300px;
        gap: 40px;
        margin-bottom: 64px;
    }

    /* 筛选条 */
    .news-filter-bar {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 12px;
        background: var(--surface);
        border: 1px solid var(--border-light);
        border-radius: var(--radius-md);
        padding: 16px 20px;
        margin-bottom: 24px;
    }

    .news-filter-bar .filter-label {
        font-size: 13px;
        font-weight: 600;
        color: var(--text-weak);
        letter-spacing: 0.04em;
        margin-right: 4px;
    }

    .filter-select {
        appearance: none;
        -webkit-appearance: none;
        background: var(--bg);
        border: 1px solid var(--border-light);
        border-radius: var(--radius-sm);
        padding: 8px 32px 8px 14px;
        font-size: 14px;
        color: var(--text-main);
        cursor: pointer;
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%235C5552' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
        background-repeat: no-repeat;
        background-position: right 12px center;
        transition: border-color 0.3s ease;
    }

    .filter-select:focus {
        border-color: var(--secondary);
    }

    .filter-btn {
        background: var(--primary);
        color: #fff;
        padding: 8px 18px;
        border-radius: var(--radius-sm);
        font-size: 14px;
        font-weight: 600;
        transition: background 0.3s ease, transform 0.3s ease;
    }

    .filter-btn:hover {
        background: var(--secondary);
        transform: translateY(-1px);
    }

    .filter-reset {
        font-size: 13px;
        color: var(--text-weak);
        padding: 8px 12px;
        border-radius: var(--radius-sm);
        transition: color 0.3s ease, background 0.3s ease;
    }

    .filter-reset:hover {
        color: var(--text-main);
        background: rgba(26, 24, 23, 0.04);
    }

    /* 文章列表 */
    .news-articles {
        display: flex;
        flex-direction: column;
        gap: 16px;
    }

    .news-card {
        display: grid;
        grid-template-columns: 200px 1fr;
        gap: 20px;
        background: var(--surface);
        border: 1px solid var(--border-light);
        border-radius: var(--radius-md);
        padding: 16px;
        transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    }

    .news-card:hover {
        transform: translateY(-2px);
        box-shadow: var(--shadow-md);
        border-color: rgba(26, 24, 23, 0.12);
    }

    .news-card-thumb {
        width: 200px;
        height: 140px;
        border-radius: var(--radius-sm);
        overflow: hidden;
        background: var(--bg-alt);
        flex-shrink: 0;
    }

    .news-card-thumb img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.5s ease;
    }

    .news-card:hover .news-card-thumb img {
        transform: scale(1.04);
    }

    .news-card-body {
        display: flex;
        flex-direction: column;
        gap: 6px;
        min-width: 0;
    }

    .news-card-meta {
        display: flex;
        align-items: center;
        gap: 12px;
        font-size: 12px;
        color: var(--text-weak);
        letter-spacing: 0.03em;
    }

    .news-card-meta .news-date {
        font-weight: 500;
    }

    .news-card-meta .news-category-badge {
        background: var(--bg);
        padding: 3px 10px;
        border-radius: var(--radius-pill);
        font-size: 12px;
        font-weight: 500;
        color: var(--text-sub);
    }

    .news-card-title {
        font-size: 19px;
        font-weight: 700;
        line-height: 1.45;
        color: var(--text-main);
        transition: color 0.3s ease;
    }

    .news-card:hover .news-card-title {
        color: var(--secondary);
    }

    .news-card-excerpt {
        font-size: 14px;
        line-height: 1.75;
        color: var(--text-sub);
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .news-card-link {
        font-size: 13px;
        font-weight: 600;
        color: var(--secondary);
        display: inline-flex;
        align-items: center;
        gap: 4px;
        transition: gap 0.3s ease;
    }

    .news-card-link:hover {
        gap: 8px;
    }

    .news-card-link i {
        font-size: 11px;
    }

    /* 加载更多按钮 */
    .news-load-more {
        text-align: center;
        margin-top: 24px;
    }

    .news-load-more button {
        background: transparent;
        color: var(--text-sub);
        border: 1px solid var(--border-light);
        padding: 12px 32px;
        border-radius: var(--radius-pill);
        font-size: 14px;
        font-weight: 600;
        transition: all 0.3s ease;
    }

    .news-load-more button:hover {
        color: var(--secondary);
        border-color: var(--secondary);
        background: rgba(196, 62, 47, 0.04);
        transform: translateY(-2px);
    }

    /* 侧边栏 */
    .news-sidebar {
        display: flex;
        flex-direction: column;
        gap: 24px;
    }

    .sidebar-widget {
        background: var(--surface);
        border: 1px solid var(--border-light);
        border-radius: var(--radius-md);
        padding: 24px;
    }

    .sidebar-widget h3 {
        font-size: 16px;
        font-weight: 700;
        color: var(--text-main);
        margin-bottom: 16px;
        padding-bottom: 12px;
        border-bottom: 1px solid var(--border-lighter);
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .sidebar-widget h3 i {
        color: var(--secondary);
        font-size: 14px;
    }

    .hot-article-list {
        display: flex;
        flex-direction: column;
        gap: 12px;
    }

    .hot-article-item {
        display: flex;
        gap: 10px;
        align-items: flex-start;
        padding-bottom: 12px;
        border-bottom: 1px solid var(--border-lighter);
    }

    .hot-article-item:last-child {
        border-bottom: none;
        padding-bottom: 0;
    }

    .hot-article-rank {
        font-family: var(--font-number);
        font-size: 20px;
        font-weight: 700;
        color: var(--accent);
        line-height: 1.2;
        flex-shrink: 0;
        width: 28px;
    }

    .hot-article-link {
        font-size: 14px;
        font-weight: 500;
        color: var(--text-main);
        line-height: 1.5;
        transition: color 0.3s ease;
    }

    .hot-article-link:hover {
        color: var(--secondary);
    }

    .hot-article-date {
        font-size: 12px;
        color: var(--text-weak);
        display: block;
        margin-top: 2px;
    }

    /* 标签云 */
    .tag-cloud {
        display: flex;
        flex-wrap: wrap;
        gap: 8px;
    }

    .tag-cloud a {
        display: inline-block;
        padding: 5px 14px;
        font-size: 13px;
        font-weight: 500;
        color: var(--text-sub);
        background: var(--bg);
        border-radius: var(--radius-pill);
        transition: all 0.3s ease;
        border: 1px solid transparent;
    }

    .tag-cloud a:hover {
        color: var(--secondary);
        background: rgba(196, 62, 47, 0.06);
        border-color: rgba(196, 62, 47, 0.2);
        transform: translateY(-1px);
    }

    /* ============ 订阅 CTA ============ */
    .news-subscribe {
        background: var(--primary);
        border-radius: var(--radius-lg);
        padding: 40px 48px;
        margin-bottom: 64px;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 32px;
        align-items: center;
    }

    .news-subscribe-text h2 {
        font-size: 26px;
        font-weight: 700;
        color: #fff;
        margin-bottom: 10px;
        letter-spacing: -0.01em;
    }

    .news-subscribe-text p {
        font-size: 15px;
        color: var(--text-inverse-sub);
        line-height: 1.8;
    }

    .news-subscribe-form {
        display: flex;
        gap: 10px;
    }

    .news-subscribe-form input {
        flex: 1;
        padding: 12px 18px;
        border-radius: var(--radius-pill);
        border: 1px solid rgba(246, 243, 238, 0.2);
        background: rgba(255, 255, 255, 0.08);
        color: #fff;
        font-size: 14px;
        transition: border-color 0.3s ease, background 0.3s ease;
        outline: none;
    }

    .news-subscribe-form input::placeholder {
        color: rgba(246, 243, 238, 0.4);
    }

    .news-subscribe-form input:focus {
        border-color: var(--secondary);
        background: rgba(255, 255, 255, 0.12);
    }

    .news-subscribe-form button {
        background: var(--secondary);
        color: #fff;
        padding: 12px 24px;
        border-radius: var(--radius-pill);
        font-size: 14px;
        font-weight: 600;
        white-space: nowrap;
        transition: background 0.3s ease, transform 0.3s ease;
    }

    .news-subscribe-form button:hover {
        background: var(--secondary-hover);
        transform: translateY(-2px);
    }

    /* ============ 编辑聚焦区块 ============ */
    .editor-spotlight {
        background: var(--surface);
        border: 1px solid var(--border-light);
        border-radius: var(--radius-lg);
        padding: 32px 36px;
        margin-bottom: 32px;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 28px;
        align-items: center;
    }

    .editor-spotlight-text h2 {
        font-size: 22px;
        font-weight: 700;
        color: var(--text-main);
        margin-bottom: 12px;
        letter-spacing: -0.01em;
    }

    .editor-spotlight-text p {
        font-size: 15px;
        line-height: 1.8;
        color: var(--text-sub);
    }

    .editor-spotlight-stats {
        display: flex;
        gap: 24px;
        justify-content: flex-end;
    }

    .editor-stat-item {
        text-align: center;
    }

    .editor-stat-number {
        font-family: var(--font-number);
        font-size: 32px;
        font-weight: 700;
        color: var(--secondary);
        line-height: 1.2;
    }

    .editor-stat-label {
        font-size: 12px;
        color: var(--text-weak);
        margin-top: 4px;
        letter-spacing: 0.03em;
    }

    /* ============ 页脚 ============ */
    .site-footer {
        background: var(--primary);
        color: var(--text-inverse);
        padding: 64px 0 24px;
        margin-top: 48px;
    }

    .footer-container {
        max-width: var(--container-max);
        margin: 0 auto;
        padding: 0 24px;
    }

    .footer-main {
        display: grid;
        grid-template-columns: 2fr 1fr 1fr 1fr;
        gap: 40px;
        padding-bottom: 40px;
        border-bottom: 1px solid var(--border-inverse);
    }

    .footer-brand-col {
        max-width: 320px;
    }

    .footer-logo {
        display: flex;
        align-items: center;
        gap: 10px;
        margin-bottom: 16px;
    }

    .footer-logo .logo-mark {
        width: 36px;
        height: 36px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        font-weight: 700;
        font-size: 16px;
        color: #fff;
    }

    .footer-logo .logo-text {
        font-size: 18px;
        font-weight: 700;
        color: #fff;
        letter-spacing: -0.01em;
    }

    .footer-about {
        font-size: 14px;
        color: var(--text-inverse-sub);
        line-height: 1.8;
    }

    .footer-links h4 {
        font-size: 14px;
        font-weight: 700;
        color: #fff;
        margin-bottom: 14px;
        letter-spacing: 0.03em;
    }

    .footer-links a {
        display: block;
        font-size: 14px;
        color: var(--text-inverse-sub);
        padding: 5px 0;
        transition: color 0.3s ease, padding-left 0.3s ease;
    }

    .footer-links a:hover {
        color: #fff;
        padding-left: 4px;
    }

    .footer-bottom {
        padding-top: 20px;
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 12px;
        font-size: 13px;
        color: var(--text-inverse-sub);
    }

    .footer-bottom a {
        color: var(--text-inverse-sub);
        transition: color 0.3s ease;
    }

    .footer-bottom a:hover {
        color: #fff;
    }

    .footer-bottom p {
        font-size: 13px;
        margin: 0;
    }

    /* ============ 响应式 ============ */
    @media (max-width: 1024px) {
        .nav-links a {
            padding: 4px 9px;
            font-size: 13px;
        }

        .nav-dock {
            gap: 10px;
            padding: 0 14px 0 12px;
        }

        .news-main {
            grid-template-columns: 1fr 250px;
            gap: 28px;
        }

        .news-card {
            grid-template-columns: 160px 1fr;
        }

        .news-card-thumb {
            width: 160px;
            height: 120px;
        }
    }

    @media (max-width: 768px) {
        body {
            padding-top: calc(var(--nav-height-mobile) + 20px);
        }

        .site-header {
            top: 12px;
        }

        .nav-dock {
            height: var(--nav-height-mobile);
            padding: 0 12px;
        }

        .nav-links {
            display: none;
        }

        .nav-hamburger {
            display: flex;
        }

        .nav-cta {
            display: none;
        }

        .container-custom {
            padding-left: 16px;
            padding-right: 16px;
        }

        .news-hero {
            min-height: 240px;
        }

        .news-hero-content {
            padding: 32px 24px 28px;
        }

        .news-hero h1 {
            font-size: 30px;
        }

        .news-hero p {
            font-size: 15px;
        }

        .news-main {
            grid-template-columns: 1fr;
            gap: 24px;
        }

        .news-sidebar {
            order: 2;
        }

        .news-card {
            grid-template-columns: 120px 1fr;
            gap: 12px;
            padding: 12px;
        }

        .news-card-thumb {
            width: 120px;
            height: 100px;
        }

        .news-card-title {
            font-size: 16px;
        }

        .news-card-excerpt {
            font-size: 13px;
            -webkit-line-clamp: 2;
        }

        .news-subscribe {
            grid-template-columns: 1fr;
            padding: 28px 24px;
            gap: 16px;
        }

        .news-subscribe-form {
            flex-direction: column;
        }

        .news-subscribe-form button {
            width: 100%;
        }

        .editor-spotlight {
            grid-template-columns: 1fr;
            gap: 16px;
            padding: 24px;
        }

        .editor-spotlight-stats {
            justify-content: flex-start;
            flex-wrap: wrap;
        }

        .footer-main {
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }

        .footer-brand-col {
            grid-column: 1 / -1;
            max-width: none;
        }

        .footer-bottom {
            flex-direction: column;
            align-items: flex-start;
            gap: 8px;
        }
    }

    @media (max-width: 520px) {
        .news-card {
            grid-template-columns: 1fr;
        }

        .news-card-thumb {
            width: 100%;
            height: 160px;
        }

        .news-card-meta {
            flex-wrap: wrap;
            gap: 8px;
        }

        .news-hero h1 {
            font-size: 24px;
        }

        .news-hero-content {
            padding: 24px 18px 20px;
        }

        .news-filter-bar {
            flex-direction: column;
            align-items: stretch;
        }

        .filter-select {
            width: 100%;
        }

        .news-subscribe {
            padding: 20px 16px;
        }

        .news-subscribe-text h2 {
            font-size: 20px;
        }

        .editor-spotlight {
            padding: 18px 16px;
        }

        .editor-spotlight-stats {
            gap: 16px;
        }

        .editor-stat-number {
            font-size: 24px;
        }

        .footer-main {
            grid-template-columns: 1fr;
            gap: 20px;
        }
    }

/* roulang page: category3 */
:root {
            --primary: #1A1817;
            --secondary: #C43E2F;
            --secondary-hover: #A63427;
            --bg: #F6F3EE;
            --bg-alt: #FBFAF7;
            --surface: #FFFFFF;
            --accent: #A8855C;
            --text-main: #1A1817;
            --text-sub: #5C5552;
            --text-weak: #8C837E;
            --text-inverse: #F6F3EE;
            --text-inverse-sub: #B8B0A9;
            --border-light: rgba(26, 24, 23, 0.08);
            --border-lighter: rgba(26, 24, 23, 0.06);
            --border-inverse: rgba(246, 243, 238, 0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-pill: 999px;
            --shadow-xs: 0 2px 8px rgba(26, 24, 23, 0.04);
            --shadow-md: 0 8px 24px rgba(26, 24, 23, 0.08);
            --shadow-lg: 0 16px 40px rgba(26, 24, 23, 0.12);
            --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --font-number: "DIN Alternate", "Roboto Mono", "SF Mono", monospace;
            --container-max: 1200px;
            --section-spacing-desktop: 120px;
            --section-spacing-mobile: 72px;
            --nav-height: 60px;
            --nav-height-mobile: 54px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            font-weight: 400;
            min-height: 100vh;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease, background-color 0.3s ease, transform 0.25s ease, box-shadow 0.3s ease;
        }

        a:hover {
            text-decoration: none;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 640px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        .section-spacing {
            padding: var(--section-spacing-desktop) 0;
        }

        @media (max-width: 640px) {
            .section-spacing {
                padding: var(--section-spacing-mobile) 0;
            }
        }

        /* ============ 浮动 Dock 导航 ============ */
        .site-header {
            position: fixed;
            top: 20px;
            left: 0;
            right: 0;
            z-index: 9999;
            display: flex;
            justify-content: center;
            pointer-events: none;
            transition: top 0.3s ease;
        }

        .site-header.scrolled {
            top: 8px;
        }

        .nav-dock {
            pointer-events: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            max-width: 1140px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid rgba(26, 24, 23, 0.08);
            border-radius: var(--radius-pill);
            padding: 0 20px 0 16px;
            height: var(--nav-height);
            box-shadow: 0 4px 20px rgba(26, 24, 23, 0.05);
            transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .nav-dock.scrolled {
            background: rgba(255, 255, 255, 0.95);
            box-shadow: 0 8px 30px rgba(26, 24, 23, 0.09);
            border-color: rgba(26, 24, 23, 0.12);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-weight: 800;
            font-size: 18px;
            color: var(--text-main);
            letter-spacing: -0.01em;
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-inverse);
            font-size: 16px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2px;
            list-style: none;
            flex: 1;
            justify-content: center;
            flex-wrap: nowrap;
            overflow: hidden;
            margin: 0;
        }

        .nav-links li {
            flex-shrink: 0;
        }

        .nav-links a {
            display: inline-block;
            padding: 4px 13px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-sub);
            border-radius: var(--radius-pill);
            position: relative;
            transition: color 0.25s ease, background-color 0.3s ease;
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--text-main);
            background: rgba(26, 24, 23, 0.04);
        }

        .nav-links a.active {
            color: var(--secondary);
            font-weight: 600;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--secondary);
            border-radius: 2px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .nav-search-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-sub);
            font-size: 15px;
            transition: color 0.25s ease, background-color 0.3s ease, transform 0.25s ease;
        }

        .nav-search-btn:hover {
            color: var(--text-main);
            background: rgba(26, 24, 23, 0.05);
            transform: scale(1.04);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-inverse);
            background: var(--secondary);
            border-radius: var(--radius-pill);
            white-space: nowrap;
            transition: background-color 0.3s ease, transform 0.25s ease, box-shadow 0.3s ease;
        }

        .nav-cta:hover {
            background: var(--secondary-hover);
            transform: translateY(-2px);
            box-shadow: 0 4px 14px rgba(196, 62, 47, 0.3);
            color: var(--text-inverse);
        }

        .nav-hamburger {
            display: none;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            color: var(--text-main);
            font-size: 16px;
            transition: background-color 0.3s ease;
        }

        .nav-hamburger:hover {
            background: rgba(26, 24, 23, 0.05);
        }

        .mobile-menu {
            display: none;
            flex-direction: column;
            gap: 4px;
            position: absolute;
            top: calc(var(--nav-height) + 12px);
            left: 50%;
            transform: translateX(-50%);
            width: calc(100% - 32px);
            max-width: 520px;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(18px);
            border: 1px solid rgba(26, 24, 23, 0.08);
            border-radius: var(--radius-lg);
            padding: 16px 20px;
            box-shadow: 0 12px 40px rgba(26, 24, 23, 0.1);
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu a {
            display: block;
            padding: 10px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-sub);
            border-radius: var(--radius-sm);
            transition: color 0.25s ease, background-color 0.3s ease;
        }

        .mobile-menu a:hover {
            color: var(--text-main);
            background: rgba(26, 24, 23, 0.04);
        }

        .mobile-menu a.active {
            color: var(--secondary);
            font-weight: 600;
            background: rgba(196, 62, 47, 0.06);
        }

        @media (max-width: 1024px) {
            .nav-links {
                display: none;
            }
            .nav-cta {
                display: none;
            }
            .nav-hamburger {
                display: flex;
            }
            .nav-dock {
                padding: 0 14px;
            }
        }

        @media (max-width: 640px) {
            .site-header {
                top: 10px;
            }
            .site-header.scrolled {
                top: 6px;
            }
            .nav-dock {
                height: var(--nav-height-mobile);
                border-radius: 28px;
                padding: 0 12px;
            }
            .nav-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 14px;
            }
            .nav-logo {
                font-size: 16px;
                gap: 7px;
            }
        }

        /* ============ 页面 Hero（内页紧凑型） ============ */
        .page-hero {
            position: relative;
            min-height: 520px;
            display: flex;
            align-items: center;
            background: linear-gradient(180deg, rgba(26, 24, 23, 0.82) 0%, rgba(26, 24, 23, 0.55) 55%, rgba(26, 24, 23, 0.75) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            margin-top: 0;
            padding-top: calc(var(--nav-height) + 70px);
            padding-bottom: 70px;
            overflow: hidden;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 6px;
            background: var(--secondary);
        }

        .page-hero-content {
            position: relative;
            z-index: 2;
            max-width: 800px;
        }

        .page-hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 16px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.06em;
            color: var(--text-inverse);
            background: rgba(196, 62, 47, 0.85);
            border-radius: var(--radius-pill);
            margin-bottom: 20px;
        }

        .page-hero h1 {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.02em;
            color: var(--text-inverse);
            margin-bottom: 18px;
        }

        .page-hero-desc {
            font-size: 17px;
            line-height: 1.8;
            color: rgba(246, 243, 238, 0.88);
            max-width: 640px;
            margin-bottom: 30px;
        }

        .page-hero-cta-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .btn-primary-hero {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-inverse);
            background: var(--secondary);
            border-radius: var(--radius-pill);
            transition: background-color 0.3s ease, transform 0.25s ease, box-shadow 0.3s ease;
        }

        .btn-primary-hero:hover {
            background: var(--secondary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(196, 62, 47, 0.35);
            color: var(--text-inverse);
        }

        .btn-ghost-hero {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-inverse);
            background: transparent;
            border: 1px solid rgba(246, 243, 238, 0.45);
            border-radius: var(--radius-pill);
            transition: border-color 0.3s ease, background-color 0.3s ease, transform 0.25s ease;
        }

        .btn-ghost-hero:hover {
            border-color: var(--text-inverse);
            background: rgba(246, 243, 238, 0.1);
            transform: translateY(-2px);
            color: var(--text-inverse);
        }

        @media (max-width: 1024px) {
            .page-hero h1 {
                font-size: 40px;
            }
            .page-hero {
                min-height: 450px;
            }
        }

        @media (max-width: 640px) {
            .page-hero {
                min-height: 420px;
                padding-top: calc(var(--nav-height-mobile) + 56px);
                padding-bottom: 48px;
            }
            .page-hero h1 {
                font-size: 32px;
                line-height: 1.25;
            }
            .page-hero-desc {
                font-size: 15px;
            }
        }

        /* ============ 通用板块样式 ============ */
        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--secondary);
            text-transform: uppercase;
            margin-bottom: 14px;
        }

        .section-label::before {
            content: '';
            width: 24px;
            height: 2px;
            background: var(--secondary);
            border-radius: 2px;
        }

        .section-title {
            font-size: 34px;
            font-weight: 700;
            line-height: 1.3;
            letter-spacing: -0.01em;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-sub);
            line-height: 1.8;
            max-width: 700px;
            margin-bottom: 40px;
        }

        @media (max-width: 640px) {
            .section-title {
                font-size: 26px;
            }
            .section-subtitle {
                font-size: 14px;
                margin-bottom: 28px;
            }
        }

        /* ============ 训练理念区块 ============ */
        .training-philosophy {
            background: var(--bg);
            padding: 70px 0;
        }

        .philosophy-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .philosophy-text p {
            font-size: 16px;
            line-height: 1.9;
            color: var(--text-sub);
            margin-bottom: 18px;
        }

        .philosophy-text p strong {
            color: var(--text-main);
            font-weight: 600;
        }

        .philosophy-highlight {
            padding: 18px 22px;
            background: var(--surface);
            border-left: 3px solid var(--secondary);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            margin: 24px 0;
            font-size: 15px;
            color: var(--text-main);
            font-weight: 500;
            box-shadow: var(--shadow-xs);
        }

        .philosophy-image-wrap {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .philosophy-image-wrap img {
            width: 100%;
            height: 420px;
            object-fit: cover;
        }

        .philosophy-image-tag {
            position: absolute;
            bottom: 18px;
            left: 18px;
            padding: 8px 16px;
            background: rgba(26, 24, 23, 0.85);
            color: var(--text-inverse);
            font-size: 13px;
            font-weight: 500;
            border-radius: var(--radius-sm);
            backdrop-filter: blur(6px);
        }

        @media (max-width: 1024px) {
            .philosophy-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .philosophy-image-wrap img {
                height: 320px;
            }
        }

        /* ============ 训练阶段卡片（非对称） ============ */
        .training-stages {
            background: var(--bg-alt);
            padding: 70px 0;
        }

        .stages-grid {
            display: grid;
            grid-template-columns: 1.15fr 0.85fr;
            gap: 24px;
            margin-top: 20px;
        }

        .stage-card {
            background: var(--surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 28px 30px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            display: flex;
            flex-direction: column;
            position: relative;
            overflow: hidden;
        }

        .stage-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .stage-card-featured {
            grid-row: span 2;
            padding: 36px 34px;
            background: var(--primary);
            color: var(--text-inverse);
            border-color: var(--primary);
        }

        .stage-card-featured .stage-number {
            color: var(--accent);
        }

        .stage-card-featured .stage-title {
            color: var(--text-inverse);
            font-size: 22px;
        }

        .stage-card-featured .stage-desc {
            color: var(--text-inverse-sub);
        }

        .stage-card-featured .stage-progress-bar {
            background: rgba(246, 243, 238, 0.15);
        }

        .stage-card-featured .stage-progress-fill {
            background: var(--secondary);
        }

        .stage-card-featured .stage-duration {
            color: var(--accent);
            border-color: rgba(168, 133, 92, 0.4);
        }

        .stage-number {
            font-family: var(--font-number);
            font-size: 40px;
            font-weight: 700;
            color: var(--secondary);
            line-height: 1;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }

        .stage-title {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 10px;
            letter-spacing: -0.005em;
        }

        .stage-desc {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-sub);
            margin-bottom: 18px;
            flex: 1;
        }

        .stage-progress-bar {
            width: 100%;
            height: 4px;
            background: var(--border-lighter);
            border-radius: 2px;
            margin-bottom: 10px;
            overflow: hidden;
        }

        .stage-progress-fill {
            height: 100%;
            border-radius: 2px;
            transition: width 1.5s ease-out;
        }

        .stage-duration {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            font-weight: 600;
            color: var(--secondary);
            padding: 4px 12px;
            border: 1px solid rgba(196, 62, 47, 0.3);
            border-radius: var(--radius-pill);
            align-self: flex-start;
        }

        @media (max-width: 1024px) {
            .stages-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stage-card-featured {
                grid-row: auto;
            }
            .stage-card {
                padding: 22px 24px;
            }
        }

        /* ============ 训练项目矩阵 ============ */
        .training-programs {
            background: var(--bg);
            padding: 70px 0;
        }

        .programs-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .program-card {
            background: var(--surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        .program-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .program-card-lg {
            grid-column: span 2;
            display: grid;
            grid-template-columns: 0.85fr 1.15fr;
        }

        .program-card-img {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }

        .program-card-lg .program-card-img {
            border-radius: var(--radius-lg) 0 0 var(--radius-lg);
            height: 100%;
            min-height: 240px;
        }

        .program-card-img img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .program-card-lg .program-card-img img {
            height: 100%;
            min-height: 240px;
            object-fit: cover;
        }

        .program-card:hover .program-card-img img {
            transform: scale(1.04);
        }

        .program-card-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 10px;
            font-size: 11px;
            font-weight: 600;
            color: var(--text-inverse);
            background: rgba(196, 62, 47, 0.9);
            border-radius: var(--radius-pill);
        }

        .program-card-body {
            padding: 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .program-card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .program-card-desc {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-sub);
            margin-bottom: 16px;
            flex: 1;
        }

        .program-card-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--secondary);
            display: inline-flex;
            align-items: center;
            gap: 5px;
            transition: gap 0.25s ease, color 0.25s ease;
        }

        .program-card-link i {
            font-size: 11px;
        }

        .program-card-link:hover {
            color: var(--secondary-hover);
            gap: 9px;
        }

        @media (max-width: 1024px) {
            .programs-grid {
                grid-template-columns: 1fr 1fr;
            }
            .program-card-lg {
                grid-column: span 2;
                grid-template-columns: 1fr;
            }
            .program-card-lg .program-card-img {
                border-radius: var(--radius-lg) var(--radius-lg) 0 0;
                min-height: auto;
            }
            .program-card-lg .program-card-img img {
                min-height: auto;
                height: 220px;
            }
        }

        @media (max-width: 640px) {
            .programs-grid {
                grid-template-columns: 1fr;
            }
            .program-card-lg {
                grid-column: span 1;
            }
            .program-card-img img {
                height: 180px;
            }
        }

        /* ============ 训练数据看板 ============ */
        .training-data {
            background: var(--primary);
            padding: 70px 0;
            color: var(--text-inverse);
        }

        .training-data .section-title {
            color: var(--text-inverse);
        }

        .training-data .section-subtitle {
            color: var(--text-inverse-sub);
        }

        .data-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1px;
            background: rgba(246, 243, 238, 0.1);
            border-radius: var(--radius-lg);
            overflow: hidden;
            margin-top: 30px;
        }

        .data-cell {
            background: rgba(26, 24, 23, 0.3);
            padding: 32px 24px;
            text-align: center;
            backdrop-filter: blur(4px);
        }

        .data-value {
            font-family: var(--font-number);
            font-size: 40px;
            font-weight: 700;
            line-height: 1.1;
            letter-spacing: -0.02em;
            color: var(--text-inverse);
            margin-bottom: 8px;
        }

        .data-value .unit {
            font-size: 16px;
            font-weight: 500;
            color: var(--accent);
            margin-left: 2px;
        }

        .data-label {
            font-size: 13px;
            font-weight: 500;
            color: var(--text-inverse-sub);
            letter-spacing: 0.03em;
        }

        .data-note {
            font-size: 12px;
            color: rgba(246, 243, 238, 0.5);
            margin-top: 16px;
            text-align: center;
        }

        @media (max-width: 1024px) {
            .data-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 640px) {
            .data-value {
                font-size: 30px;
            }
            .data-cell {
                padding: 22px 16px;
            }
        }

        /* ============ 教练团队 ============ */
        .coaches-section {
            background: var(--bg-alt);
            padding: 70px 0;
        }

        .coaches-scroll {
            display: flex;
            gap: 18px;
            overflow-x: auto;
            padding-bottom: 14px;
            scroll-snap-type: x mandatory;
            -webkit-overflow-scrolling: touch;
            margin-top: 10px;
        }

        .coaches-scroll::-webkit-scrollbar {
            height: 5px;
        }

        .coaches-scroll::-webkit-scrollbar-track {
            background: var(--border-lighter);
            border-radius: 3px;
        }

        .coaches-scroll::-webkit-scrollbar-thumb {
            background: var(--border-light);
            border-radius: 3px;
        }

        .coach-card {
            flex: 0 0 250px;
            scroll-snap-align: start;
            background: var(--surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .coach-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .coach-card img {
            width: 100%;
            height: 190px;
            object-fit: cover;
        }

        .coach-body {
            padding: 18px 20px;
        }

        .coach-name {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 4px;
        }

        .coach-role {
            font-size: 13px;
            font-weight: 600;
            color: var(--secondary);
            margin-bottom: 8px;
        }

        .coach-bio {
            font-size: 13px;
            line-height: 1.7;
            color: var(--text-sub);
        }

        @media (max-width: 640px) {
            .coach-card {
                flex: 0 0 210px;
            }
        }

        /* ============ FAQ ============ */
        .training-faq {
            background: var(--bg);
            padding: 70px 0;
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--border-light);
            transition: background-color 0.3s ease;
        }

        .faq-item:first-child {
            border-top: 1px solid var(--border-light);
        }

        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 4px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            text-align: left;
            transition: color 0.3s ease;
        }

        .faq-question:hover {
            color: var(--secondary);
        }

        .faq-question .faq-index {
            font-family: var(--font-number);
            font-size: 13px;
            color: var(--accent);
            font-weight: 600;
            margin-right: 10px;
        }

        .faq-question .faq-arrow {
            font-size: 12px;
            color: var(--text-weak);
            transition: transform 0.3s ease, color 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item.open .faq-arrow {
            transform: rotate(180deg);
            color: var(--secondary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            font-size: 15px;
            line-height: 1.9;
            color: var(--text-sub);
            padding: 0 4px;
        }

        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 4px 20px 4px;
        }

        /* ============ CTA / 表单 ============ */
        .cta-form-section {
            background: var(--primary);
            padding: 70px 0;
            color: var(--text-inverse);
        }

        .cta-form-grid {
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 50px;
            align-items: start;
        }

        .cta-form-info h2 {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-inverse);
            margin-bottom: 16px;
        }

        .cta-form-info p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-inverse-sub);
            margin-bottom: 24px;
        }

        .cta-contact-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .cta-contact-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-inverse-sub);
        }

        .cta-contact-item i {
            color: var(--accent);
            width: 18px;
            text-align: center;
        }

        .cta-form-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 32px 34px;
            color: var(--text-main);
            box-shadow: var(--shadow-lg);
        }

        .cta-form-card label {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .cta-form-card input,
        .cta-form-card select,
        .cta-form-card textarea {
            width: 100%;
            padding: 12px 14px;
            font-size: 14px;
            color: var(--text-main);
            background: var(--bg-alt);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            margin-bottom: 16px;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
            outline: none;
            font-family: inherit;
        }

        .cta-form-card input:focus,
        .cta-form-card select:focus,
        .cta-form-card textarea:focus {
            border-color: var(--secondary);
            box-shadow: 0 0 0 3px rgba(196, 62, 47, 0.15);
        }

        .cta-form-card textarea {
            min-height: 100px;
            resize: vertical;
        }

        .form-submit-btn {
            width: 100%;
            padding: 14px 20px;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-inverse);
            background: var(--secondary);
            border-radius: var(--radius-sm);
            transition: background-color 0.3s ease, transform 0.25s ease, box-shadow 0.3s ease;
            margin-top: 4px;
        }

        .form-submit-btn:hover {
            background: var(--secondary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(196, 62, 47, 0.35);
        }

        @media (max-width: 1024px) {
            .cta-form-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 640px) {
            .cta-form-card {
                padding: 22px 20px;
            }
            .cta-form-info h2 {
                font-size: 24px;
            }
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: var(--primary);
            color: var(--text-inverse);
            padding: 50px 0 0;
        }

        .footer-container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .footer-main {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 36px;
            border-bottom: 1px solid var(--border-inverse);
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-inverse);
            font-size: 16px;
            font-weight: 700;
        }

        .logo-text {
            font-size: 18px;
            font-weight: 800;
            letter-spacing: -0.01em;
        }

        .footer-about {
            font-size: 13px;
            line-height: 1.7;
            color: var(--text-inverse-sub);
            margin-bottom: 0;
            max-width: 280px;
        }

        .footer-links h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-inverse);
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }

        .footer-links a {
            display: block;
            font-size: 13px;
            color: var(--text-inverse-sub);
            padding: 4px 0;
            transition: color 0.25s ease;
        }

        .footer-links a:hover {
            color: var(--text-inverse);
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 20px;
            align-items: center;
            padding: 18px 0;
            font-size: 12px;
            color: rgba(246, 243, 238, 0.55);
        }

        .footer-bottom p {
            margin: 0;
        }

        .footer-bottom a {
            color: rgba(246, 243, 238, 0.55);
            transition: color 0.25s ease;
        }

        .footer-bottom a:hover {
            color: var(--text-inverse);
        }

        @media (max-width: 1024px) {
            .footer-main {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 640px) {
            .footer-main {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-container {
                padding: 0 16px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
            }
        }

        /* ============ 按钮基础 ============ */
        .btn-outline-dark {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            background: transparent;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            transition: border-color 0.3s ease, color 0.3s ease, background-color 0.3s ease, transform 0.25s ease;
        }

        .btn-outline-dark:hover {
            border-color: var(--secondary);
            color: var(--secondary);
            background: rgba(196, 62, 47, 0.04);
            transform: translateY(-2px);
        }

        .btn-accent {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 24px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-inverse);
            background: var(--secondary);
            border-radius: var(--radius-sm);
            transition: background-color 0.3s ease, transform 0.25s ease, box-shadow 0.3s ease;
        }

        .btn-accent:hover {
            background: var(--secondary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 18px rgba(196, 62, 47, 0.3);
            color: var(--text-inverse);
        }

        @media (max-width: 640px) {
            .btn-outline-dark,
            .btn-accent {
                width: 100%;
                justify-content: center;
            }
        }

        /* ============ 分隔线 ============ */
        .section-divider {
            width: 100%;
            height: 1px;
            background: var(--border-lighter);
            margin: 0;
        }

        /* ============ 页头下方间隔 | 修正固定导航 ============ */
        .page-wrapper {
            padding-top: 0;
        }

/* roulang page: category5 */
:root {
  --primary: #1A1817;
  --secondary: #C43E2F;
  --secondary-hover: #A63427;
  --bg: #F6F3EE;
  --bg-alt: #FBFAF7;
  --surface: #FFFFFF;
  --accent: #A8855C;
  --text-main: #1A1817;
  --text-sub: #5C5552;
  --text-weak: #8C837E;
  --text-inverse: #F6F3EE;
  --text-inverse-sub: #B8B0A9;
  --border-light: rgba(26, 24, 23, 0.08);
  --border-lighter: rgba(26, 24, 23, 0.06);
  --border-inverse: rgba(246, 243, 238, 0.15);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-pill: 999px;
  --shadow-xs: 0 2px 8px rgba(26, 24, 23, 0.04);
  --shadow-md: 0 8px 24px rgba(26, 24, 23, 0.08);
  --shadow-lg: 0 16px 40px rgba(26, 24, 23, 0.12);
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --font-number: "DIN Alternate", "Roboto Mono", "SF Mono", monospace;
  --container-max: 1200px;
  --section-spacing-desktop: 120px;
  --section-spacing-mobile: 72px;
  --nav-height: 60px;
  --nav-height-mobile: 54px;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

*, *::before, *::after {
  box-sizing: border-box;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text-main);
  line-height: 1.8;
  font-size: 16px;
  font-weight: 400;
  min-height: 100vh;
  overflow-x: hidden;
  margin: 0;
  padding: 0;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.25s ease, border-color 0.25s ease, background-color 0.3s ease, transform 0.25s ease, box-shadow 0.3s ease;
}

a:hover {
  text-decoration: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

.container-custom {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* 浮动 Dock 导航 */
.site-header {
  position: fixed;
  top: 20px;
  left: 0;
  right: 0;
  z-index: 9999;
  display: flex;
  justify-content: center;
  pointer-events: none;
  transition: top 0.3s ease;
}

.site-header.scrolled {
  top: 8px;
}

.nav-dock {
  pointer-events: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid rgba(26, 24, 23, 0.08);
  border-radius: var(--radius-pill);
  padding: 0 20px 0 16px;
  height: var(--nav-height);
  box-shadow: 0 4px 20px rgba(26, 24, 23, 0.05);
  transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.nav-dock.scrolled {
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 8px 30px rgba(26, 24, 23, 0.09);
  border-color: rgba(26, 24, 23, 0.12);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  font-weight: 800;
  font-size: 18px;
  color: var(--text-main);
  letter-spacing: -0.01em;
}

.nav-logo .logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-inverse);
  font-size: 16px;
  font-weight: 700;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
  flex: 1;
  justify-content: center;
  flex-wrap: nowrap;
  overflow: hidden;
  margin: 0;
  padding: 0;
}

.nav-links li {
  flex-shrink: 0;
}

.nav-links a {
  display: inline-block;
  padding: 4px 13px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-sub);
  border-radius: var(--radius-pill);
  position: relative;
  transition: color 0.25s ease, background-color 0.3s ease;
  white-space: nowrap;
}

.nav-links a:hover {
  color: var(--text-main);
  background: rgba(26, 24, 23, 0.04);
}

.nav-links a.active {
  color: var(--secondary);
  font-weight: 600;
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 3px;
  background: var(--secondary);
  border-radius: 3px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.nav-search-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-sub);
  font-size: 16px;
  transition: color 0.25s ease, background-color 0.3s ease, transform 0.25s ease;
}

.nav-search-btn:hover {
  color: var(--text-main);
  background: rgba(26, 24, 23, 0.06);
  transform: scale(1.04);
}

.nav-cta {
  display: inline-block;
  height: 38px;
  line-height: 38px;
  padding: 0 18px;
  background: var(--secondary);
  color: #fff;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  transition: background-color 0.3s ease, transform 0.25s ease, box-shadow 0.3s ease;
}

.nav-cta:hover {
  background: var(--secondary-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(196, 62, 47, 0.25);
}

.nav-hamburger {
  display: none;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  color: var(--text-main);
  font-size: 18px;
  transition: background-color 0.3s ease;
}

.nav-hamburger:hover {
  background: rgba(26, 24, 23, 0.06);
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 90px;
  left: 16px;
  right: 16px;
  background: rgba(255, 255, 255, 0.97);
  backdrop-filter: blur(18px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-lg);
  padding: 16px;
  z-index: 9998;
  flex-direction: column;
  gap: 4px;
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu a {
  display: block;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 500;
  color: var(--text-sub);
  transition: background-color 0.25s ease, color 0.25s ease;
}

.mobile-menu a:hover,
.mobile-menu a.active {
  background: rgba(196, 62, 47, 0.06);
  color: var(--secondary);
}

/* 页面主体 */
.page-main {
  padding-top: 120px;
}

/* Hero 区域 */
.hero-community {
  position: relative;
  padding: 48px 0 64px;
  background: var(--bg);
  overflow: hidden;
}

.hero-community::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -20%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: rgba(168, 133, 92, 0.06);
  pointer-events: none;
}

.hero-community-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero-community-content h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text-main);
  margin: 0 0 16px;
}

.hero-community-content h1 .highlight {
  color: var(--secondary);
  position: relative;
}

.hero-community-content .hero-sub {
  font-size: 17px;
  color: var(--text-sub);
  line-height: 1.8;
  margin-bottom: 32px;
  max-width: 520px;
}

.hero-community-stats {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.hero-stat-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.hero-stat-item .stat-number {
  font-family: var(--font-number);
  font-size: 32px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.2;
}

.hero-stat-item .stat-label {
  font-size: 12px;
  color: var(--text-weak);
  letter-spacing: 0.04em;
}

.hero-community-image {
  position: relative;
}

.hero-community-image .hero-img-wrap {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.hero-community-image .hero-img-wrap img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}

.hero-community-image .hero-img-badge {
  position: absolute;
  bottom: 16px;
  left: 16px;
  background: rgba(26, 24, 23, 0.85);
  backdrop-filter: blur(10px);
  color: var(--text-inverse);
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-community-image .hero-img-badge i {
  color: var(--accent);
  font-size: 14px;
}

/* 通用板块 */
.section {
  padding: 72px 0;
}

.section-alt {
  background: var(--bg-alt);
}

.section-header {
  margin-bottom: 40px;
}

.section-header h2 {
  font-size: 32px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-main);
  margin: 0 0 8px;
}

.section-header p {
  font-size: 15px;
  color: var(--text-sub);
  margin: 0;
  max-width: 600px;
}

.section-divider {
  width: 48px;
  height: 3px;
  background: var(--secondary);
  border-radius: 3px;
  margin-bottom: 16px;
}

/* 动态 feed */
.feed-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.feed-card {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  transition: box-shadow 0.3s ease, transform 0.25s ease;
}

.feed-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.feed-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.feed-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 2px solid var(--border-light);
}

.feed-user-info {
  flex: 1;
  min-width: 0;
}

.feed-user-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
  margin: 0;
}

.feed-user-meta {
  font-size: 12px;
  color: var(--text-weak);
  margin: 2px 0 0;
}

.feed-card-content {
  font-size: 15px;
  color: var(--text-sub);
  line-height: 1.75;
  margin-bottom: 12px;
}

.feed-card-content p {
  margin: 0;
}

.feed-card-image {
  margin-bottom: 12px;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.feed-card-image img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.feed-card-actions {
  display: flex;
  align-items: center;
  gap: 20px;
  padding-top: 12px;
  border-top: 1px solid var(--border-lighter);
}

.feed-action-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-weak);
  transition: color 0.25s ease;
}

.feed-action-btn:hover {
  color: var(--secondary);
}

.feed-action-btn i {
  font-size: 14px;
}

/* 话题标签 */
.topics-wrapper {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.topic-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-pill);
  font-size: 13px;
  color: var(--text-sub);
  transition: border-color 0.25s ease, color 0.25s ease, background-color 0.25s ease;
}

.topic-pill:hover {
  border-color: var(--secondary);
  color: var(--secondary);
  background: rgba(196, 62, 47, 0.04);
}

.topic-pill i {
  color: var(--accent);
  font-size: 12px;
}

/* CTA 加入社区 */
.join-community {
  background: var(--primary);
  padding: 64px 0;
}

.join-community-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.join-community-content h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-inverse);
  margin: 0 0 12px;
  letter-spacing: -0.01em;
}

.join-community-content p {
  font-size: 15px;
  color: var(--text-inverse-sub);
  line-height: 1.8;
  margin: 0 0 24px;
  max-width: 480px;
}

.join-community-form {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-inverse);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.join-community-form .form-group {
  margin-bottom: 16px;
}

.join-community-form label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-inverse-sub);
  margin-bottom: 6px;
}

.join-community-form input,
.join-community-form textarea {
  width: 100%;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border-inverse);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--text-inverse);
  font-size: 14px;
  transition: border-color 0.3s ease, background-color 0.3s ease;
}

.join-community-form input::placeholder,
.join-community-form textarea::placeholder {
  color: rgba(246, 243, 238, 0.4);
}

.join-community-form input:focus,
.join-community-form textarea:focus {
  outline: none;
  border-color: var(--secondary);
  background: rgba(255, 255, 255, 0.12);
}

.join-community-form .btn-join {
  display: inline-block;
  width: 100%;
  padding: 13px;
  background: var(--secondary);
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  text-align: center;
  transition: background-color 0.3s ease, transform 0.25s ease;
}

.join-community-form .btn-join:hover {
  background: var(--secondary-hover);
  transform: translateY(-1px);
}

.form-note {
  font-size: 12px;
  color: var(--text-inverse-sub);
  margin-top: 8px;
  text-align: center;
}

/* FAQ */
.faq-section {
  padding: 72px 0;
  background: var(--bg);
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.faq-item:hover {
  border-color: rgba(196, 62, 47, 0.2);
  box-shadow: var(--shadow-xs);
}

.faq-question {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 20px;
  cursor: pointer;
  user-select: none;
  transition: background-color 0.25s ease;
}

.faq-question:hover {
  background: rgba(26, 24, 23, 0.02);
}

.faq-index {
  font-family: var(--font-number);
  font-size: 13px;
  color: var(--accent);
  font-weight: 600;
  flex-shrink: 0;
  width: 24px;
}

.faq-question-text {
  flex: 1;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  margin: 0;
}

.faq-arrow {
  color: var(--text-weak);
  font-size: 14px;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-item.open .faq-arrow {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.faq-item.open .faq-answer {
  max-height: 400px;
}

.faq-answer-inner {
  padding: 0 20px 18px 56px;
  font-size: 15px;
  color: var(--text-sub);
  line-height: 1.8;
}

/* 页脚 */
.site-footer {
  background: var(--primary);
  color: var(--text-inverse);
  padding-top: 56px;
  padding-bottom: 24px;
  margin-top: 0;
}

.footer-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

.footer-main {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border-inverse);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.footer-logo .logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
  font-weight: 700;
}

.footer-logo .logo-text {
  font-size: 18px;
  font-weight: 800;
  color: #fff;
}

.footer-about {
  font-size: 13px;
  color: var(--text-inverse-sub);
  line-height: 1.8;
  margin: 0;
  max-width: 320px;
}

.footer-links h4 {
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  margin: 0 0 12px;
}

.footer-links a {
  display: block;
  font-size: 13px;
  color: var(--text-inverse-sub);
  padding: 4px 0;
  transition: color 0.25s ease;
}

.footer-links a:hover {
  color: #fff;
}

.footer-bottom {
  padding-top: 20px;
  text-align: center;
}

.footer-bottom p {
  font-size: 12px;
  color: var(--text-inverse-sub);
  margin: 4px 0;
}

.footer-bottom a {
  color: var(--text-inverse-sub);
  transition: color 0.25s ease;
}

.footer-bottom a:hover {
  color: #fff;
}

/* 响应式 */
@media (max-width: 1024px) {
  .hero-community-inner {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .hero-community-content h1 {
    font-size: 36px;
  }

  .hero-community-image .hero-img-wrap img {
    height: 260px;
  }

  .join-community-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-main {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }

  .nav-cta {
    display: none;
  }

  .page-main {
    padding-top: 100px;
  }

  .hero-community {
    padding: 32px 0 48px;
  }

  .hero-community-content h1 {
    font-size: 30px;
  }

  .hero-community-stats {
    gap: 16px;
  }

  .hero-stat-item .stat-number {
    font-size: 26px;
  }

  .section {
    padding: 48px 0;
  }

  .section-header h2 {
    font-size: 24px;
  }

  .feed-card {
    padding: 16px;
  }

  .feed-card-image img {
    height: 160px;
  }

  .join-community {
    padding: 48px 0;
  }

  .join-community-content h2 {
    font-size: 24px;
  }

  .faq-question {
    padding: 14px 16px;
  }

  .faq-answer-inner {
    padding: 0 16px 14px 44px;
  }
}

@media (max-width: 520px) {
  .container-custom {
    padding-left: 16px;
    padding-right: 16px;
  }

  .site-header {
    top: 10px;
  }

  .nav-dock {
    padding: 0 12px 0 12px;
    height: var(--nav-height-mobile);
    gap: 8px;
  }

  .nav-logo {
    font-size: 16px;
    gap: 6px;
  }

  .nav-logo .logo-icon {
    width: 30px;
    height: 30px;
    font-size: 13px;
  }

  .mobile-menu {
    top: 74px;
    left: 10px;
    right: 10px;
  }

  .hero-community-content h1 {
    font-size: 26px;
  }

  .hero-community-stats {
    gap: 12px;
  }

  .hero-stat-item .stat-number {
    font-size: 22px;
  }

  .hero-community-image .hero-img-wrap img {
    height: 200px;
  }

  .feed-card-header {
    gap: 8px;
  }

  .feed-avatar {
    width: 34px;
    height: 34px;
  }

  .feed-card-content {
    font-size: 14px;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .join-community-form {
    padding: 20px;
  }

  .faq-question-text {
    font-size: 14px;
  }
}

/* roulang page: category6 */
:root {
            --primary: #1A1817;
            --secondary: #C43E2F;
            --secondary-hover: #A63427;
            --bg: #F6F3EE;
            --bg-alt: #FBFAF7;
            --surface: #FFFFFF;
            --accent: #A8855C;
            --text-main: #1A1817;
            --text-sub: #5C5552;
            --text-weak: #8C837E;
            --text-inverse: #F6F3EE;
            --text-inverse-sub: #B8B0A9;
            --border-light: rgba(26, 24, 23, 0.08);
            --border-lighter: rgba(26, 24, 23, 0.06);
            --border-inverse: rgba(246, 243, 238, 0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-pill: 999px;
            --shadow-xs: 0 2px 8px rgba(26, 24, 23, 0.04);
            --shadow-md: 0 8px 24px rgba(26, 24, 23, 0.08);
            --shadow-lg: 0 16px 40px rgba(26, 24, 23, 0.12);
            --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --font-number: "DIN Alternate", "Roboto Mono", "SF Mono", monospace;
            --container-max: 1200px;
            --section-spacing-desktop: 120px;
            --section-spacing-mobile: 72px;
            --nav-height: 60px;
            --nav-height-mobile: 54px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            font-weight: 400;
            min-height: 100vh;
            overflow-x: hidden;
            margin: 0;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease, background-color 0.3s ease, transform 0.25s ease, box-shadow 0.3s ease;
        }

        a:hover {
            text-decoration: none;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        @media (max-width: 640px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ============ 浮动 Dock 导航 ============ */
        .site-header {
            position: fixed;
            top: 20px;
            left: 0;
            right: 0;
            z-index: 9999;
            display: flex;
            justify-content: center;
            pointer-events: none;
            transition: top 0.3s ease;
        }

        .site-header.scrolled {
            top: 8px;
        }

        .nav-dock {
            pointer-events: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            max-width: 1140px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid rgba(26, 24, 23, 0.08);
            border-radius: var(--radius-pill);
            padding: 0 20px 0 16px;
            height: var(--nav-height);
            box-shadow: 0 4px 20px rgba(26, 24, 23, 0.05);
            transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .nav-dock.scrolled {
            background: rgba(255, 255, 255, 0.95);
            box-shadow: 0 8px 30px rgba(26, 24, 23, 0.09);
            border-color: rgba(26, 24, 23, 0.12);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-weight: 800;
            font-size: 18px;
            color: var(--text-main);
            letter-spacing: -0.01em;
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-inverse);
            font-size: 16px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2px;
            list-style: none;
            flex: 1;
            justify-content: center;
            flex-wrap: nowrap;
            overflow: hidden;
            margin: 0;
            padding: 0;
        }

        .nav-links li {
            flex-shrink: 0;
        }

        .nav-links a {
            display: inline-block;
            padding: 4px 13px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-sub);
            border-radius: var(--radius-pill);
            position: relative;
            transition: color 0.25s ease, background-color 0.3s ease;
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--text-main);
            background: rgba(26, 24, 23, 0.04);
        }

        .nav-links a.active {
            color: var(--secondary);
            font-weight: 600;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 2px;
            background: var(--secondary);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .nav-search-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-sub);
            transition: background 0.3s ease, color 0.25s ease, transform 0.25s ease;
        }

        .nav-search-btn:hover {
            background: rgba(26, 24, 23, 0.06);
            color: var(--text-main);
            transform: scale(1.04);
        }

        .nav-cta {
            display: inline-block;
            height: 40px;
            line-height: 40px;
            padding: 0 18px;
            background: var(--secondary);
            color: #fff;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            transition: background 0.3s ease, transform 0.25s ease, box-shadow 0.3s ease;
        }

        .nav-cta:hover {
            background: var(--secondary-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
            color: #fff;
        }

        .nav-hamburger {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: none;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--text-main);
            transition: background 0.3s ease;
        }

        .nav-hamburger:hover {
            background: rgba(26, 24, 23, 0.06);
        }

        .mobile-menu {
            display: none;
            position: fixed;
            top: 88px;
            left: 50%;
            transform: translateX(-50%);
            width: 90%;
            max-width: 480px;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(20px);
            border: 1px solid rgba(26, 24, 23, 0.08);
            border-radius: var(--radius-lg);
            padding: 16px;
            flex-direction: column;
            gap: 2px;
            box-shadow: var(--shadow-lg);
            z-index: 9998;
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu a {
            padding: 12px 14px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-main);
            border-radius: var(--radius-sm);
            transition: background 0.3s ease, color 0.3s ease;
        }

        .mobile-menu a:hover {
            background: rgba(26, 24, 23, 0.05);
        }

        .mobile-menu a.active {
            color: var(--secondary);
            font-weight: 600;
            background: rgba(196, 62, 47, 0.06);
        }

        /* ============ Hero ============ */
        .page-hero {
            padding-top: 160px;
            padding-bottom: 100px;
            position: relative;
            background: var(--bg);
            overflow: hidden;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 45%;
            height: 100%;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.15;
            pointer-events: none;
        }

        .page-hero .hero-content {
            position: relative;
            z-index: 2;
            max-width: 760px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            background: rgba(196, 62, 47, 0.08);
            color: var(--secondary);
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.04em;
            margin-bottom: 24px;
        }

        .hero-badge::before {
            content: '';
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--secondary);
        }

        .page-hero h1 {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.12;
            letter-spacing: -0.02em;
            color: var(--text-main);
            margin-bottom: 20px;
            margin-top: 0;
        }

        .page-hero .hero-sub {
            font-size: 18px;
            color: var(--text-sub);
            line-height: 1.9;
            margin-bottom: 28px;
            max-width: 640px;
        }

        .hero-timeline-badge {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 10px 20px;
            background: var(--surface);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-pill);
            box-shadow: var(--shadow-xs);
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
        }

        .hero-timeline-badge .line-icon {
            color: var(--accent);
        }

        /* ============ 通用板块 ============ */
        .section {
            padding: 80px 0;
        }

        .section-alt {
            background: var(--bg-alt);
        }

        .section-dark {
            background: var(--primary);
            color: var(--text-inverse);
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--accent);
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 700;
            letter-spacing: -0.015em;
            color: var(--text-main);
            margin-bottom: 16px;
            margin-top: 0;
            line-height: 1.25;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-sub);
            line-height: 1.9;
            max-width: 680px;
        }

        /* ============ 时间线 ============ */
        .timeline-wrap {
            position: relative;
            max-width: 820px;
            margin: 0 auto;
            padding-left: 32px;
        }

        .timeline-wrap::before {
            content: '';
            position: absolute;
            left: 10px;
            top: 8px;
            bottom: 8px;
            width: 2px;
            background: rgba(26, 24, 23, 0.1);
            border-radius: 1px;
        }

        .timeline-item {
            position: relative;
            padding: 0 0 48px 32px;
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }

        .timeline-item.visible {
            opacity: 1;
            transform: translateY(0);
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -26px;
            top: 8px;
            width: 14px;
            height: 14px;
            border-radius: 50%;
            background: var(--bg);
            border: 3px solid var(--secondary);
            z-index: 1;
        }

        .timeline-item .year {
            font-family: var(--font-number);
            font-size: 28px;
            font-weight: 700;
            color: var(--secondary);
            letter-spacing: -0.01em;
            margin-bottom: 6px;
        }

        .timeline-item h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin: 0 0 8px;
            line-height: 1.35;
        }

        .timeline-item p {
            font-size: 15px;
            color: var(--text-sub);
            line-height: 1.85;
            margin: 0;
        }

        /* ============ 图片集 ============ */
        .gallery-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr 1fr 1fr;
            gap: 16px;
        }

        .gallery-item {
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
            box-shadow: var(--shadow-xs);
            transition: transform 0.35s ease, box-shadow 0.35s ease;
        }

        .gallery-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }

        .gallery-item img {
            width: 100%;
            height: 280px;
            object-fit: cover;
        }

        .gallery-item:first-child {
            grid-row: span 2;
        }

        .gallery-item:first-child img {
            height: 576px;
        }

        .gallery-caption {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 40px 16px 14px;
            background: linear-gradient(transparent, rgba(26, 24, 23, 0.72));
            color: #fff;
            font-size: 14px;
            font-weight: 500;
        }

        /* ============ 引用块 ============ */
        .quote-block {
            max-width: 780px;
            margin: 0 auto;
            text-align: center;
            padding: 40px 20px;
            position: relative;
        }

        .quote-block .quote-icon {
            font-size: 40px;
            color: var(--accent);
            opacity: 0.4;
            margin-bottom: 16px;
        }

        .quote-block blockquote {
            font-size: 20px;
            font-weight: 600;
            line-height: 1.75;
            color: var(--text-main);
            margin: 0 0 12px;
            letter-spacing: -0.01em;
        }

        .quote-block .quote-source {
            font-size: 14px;
            color: var(--text-weak);
        }

        /* ============ CTA ============ */
        .cta-box {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 52px 48px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 32px;
            flex-wrap: wrap;
        }

        .cta-box h3 {
            font-size: 28px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 8px;
            line-height: 1.3;
        }

        .cta-box p {
            font-size: 16px;
            color: var(--text-inverse-sub);
            margin: 0;
            max-width: 480px;
            line-height: 1.8;
        }

        .cta-box .cta-btn {
            display: inline-block;
            padding: 14px 28px;
            background: var(--secondary);
            color: #fff;
            border-radius: var(--radius-pill);
            font-weight: 600;
            font-size: 15px;
            transition: background 0.3s ease, transform 0.25s ease;
            white-space: nowrap;
        }

        .cta-box .cta-btn:hover {
            background: var(--secondary-hover);
            transform: translateY(-2px);
            color: #fff;
        }

        /* ============ FAQ ============ */
        .faq-item {
            border-bottom: 1px solid var(--border-light);
            padding: 18px 0;
            transition: border-color 0.3s ease;
        }

        .faq-item:first-child {
            border-top: 1px solid var(--border-light);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            cursor: pointer;
            padding: 4px 0;
            transition: color 0.3s ease;
        }

        .faq-question:hover {
            color: var(--secondary);
        }

        .faq-question .faq-text {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.6;
        }

        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(26, 24, 23, 0.05);
            color: var(--text-sub);
            font-size: 14px;
            transition: all 0.3s ease;
        }

        .faq-item.open .faq-icon {
            background: rgba(196, 62, 47, 0.1);
            color: var(--secondary);
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            color: var(--text-sub);
            font-size: 15px;
            line-height: 1.85;
            padding-right: 40px;
        }

        .faq-answer p {
            margin: 0 0 8px;
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: var(--primary);
            color: var(--text-inverse);
            padding: 56px 0 24px;
            margin-top: 60px;
        }

        .footer-container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }

        .footer-main {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 36px;
            padding-bottom: 36px;
            border-bottom: 1px solid var(--border-inverse);
        }

        .footer-about {
            font-size: 14px;
            color: var(--text-inverse-sub);
            line-height: 1.8;
            margin: 12px 0 0;
            max-width: 320px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            color: var(--text-inverse);
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
        }

        .footer-links h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin: 0 0 12px;
            letter-spacing: 0.02em;
        }

        .footer-links a {
            display: block;
            font-size: 14px;
            color: var(--text-inverse-sub);
            padding: 4px 0;
            transition: color 0.25s ease;
        }

        .footer-links a:hover {
            color: #fff;
        }

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px 20px;
            padding-top: 20px;
            font-size: 13px;
            color: var(--text-inverse-sub);
        }

        .footer-bottom a {
            color: var(--text-inverse-sub);
            transition: color 0.25s ease;
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        /* ============ 响应式 ============ */
        @media (max-width: 1024px) {
            .nav-links a {
                padding: 4px 8px;
                font-size: 13px;
            }
            .gallery-grid {
                grid-template-columns: 1fr 1fr;
            }
            .gallery-item:first-child {
                grid-row: span 1;
            }
            .gallery-item:first-child img {
                height: 280px;
            }
            .footer-main {
                grid-template-columns: 1fr 1fr;
            }
            .page-hero h1 {
                font-size: 42px;
            }
            .cta-box {
                padding: 36px 28px;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                top: 12px;
            }
            .nav-dock {
                padding: 0 12px;
                height: var(--nav-height-mobile);
            }
            .nav-links {
                display: none;
            }
            .nav-hamburger {
                display: flex;
            }
            .nav-cta {
                display: none;
            }
            .page-hero {
                padding-top: 120px;
                padding-bottom: 60px;
            }
            .page-hero h1 {
                font-size: 34px;
            }
            .page-hero .hero-sub {
                font-size: 16px;
            }
            .section {
                padding: 56px 0;
            }
            .section-title {
                font-size: 26px;
            }
            .cta-box {
                flex-direction: column;
                align-items: flex-start;
                padding: 28px 20px;
            }
            .gallery-grid {
                grid-template-columns: 1fr;
            }
            .gallery-item img,
            .gallery-item:first-child img {
                height: 240px;
            }
            .timeline-wrap {
                padding-left: 20px;
            }
            .timeline-item {
                padding: 0 0 36px 24px;
            }
            .timeline-item::before {
                left: -18px;
                width: 12px;
                height: 12px;
            }
            .timeline-item .year {
                font-size: 22px;
            }
            .footer-main {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
            .quote-block blockquote {
                font-size: 17px;
            }
        }

        @media (max-width: 520px) {
            .page-hero h1 {
                font-size: 28px;
            }
            .section-title {
                font-size: 22px;
            }
            .cta-box h3 {
                font-size: 22px;
            }
            .cta-box .cta-btn {
                width: 100%;
                text-align: center;
            }
            .hero-badge {
                font-size: 12px;
                padding: 4px 10px;
            }
        }

/* roulang page: category4 */
:root {
            --primary: #1A1817;
            --secondary: #C43E2F;
            --secondary-hover: #A63427;
            --bg: #F6F3EE;
            --bg-alt: #FBFAF7;
            --surface: #FFFFFF;
            --accent: #A8855C;
            --text-main: #1A1817;
            --text-sub: #5C5552;
            --text-weak: #8C837E;
            --text-inverse: #F6F3EE;
            --text-inverse-sub: #B8B0A9;
            --border-light: rgba(26, 24, 23, 0.08);
            --border-lighter: rgba(26, 24, 23, 0.06);
            --border-inverse: rgba(246, 243, 238, 0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-pill: 999px;
            --shadow-xs: 0 2px 8px rgba(26, 24, 23, 0.04);
            --shadow-md: 0 8px 24px rgba(26, 24, 23, 0.08);
            --shadow-lg: 0 16px 40px rgba(26, 24, 23, 0.12);
            --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --font-number: "DIN Alternate", "Roboto Mono", "SF Mono", monospace;
            --container-max: 1200px;
            --section-spacing-desktop: 120px;
            --section-spacing-mobile: 72px;
            --nav-height: 60px;
            --nav-height-mobile: 54px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            font-weight: 400;
            min-height: 100vh;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease, background-color 0.3s ease, transform 0.25s ease, box-shadow 0.3s ease;
        }

        a:hover {
            text-decoration: none;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
            font-family: inherit;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .container-custom {
            padding-left: 16px;
            padding-right: 16px;
        }

        /* ============ 浮动 Dock 导航 ============ */
        .site-header {
            position: fixed;
            top: 20px;
            left: 0;
            right: 0;
            z-index: 9999;
            display: flex;
            justify-content: center;
            pointer-events: none;
            transition: top 0.3s ease;
        }

        .site-header.scrolled {
            top: 8px;
        }

        .nav-dock {
            pointer-events: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            max-width: 1140px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid rgba(26, 24, 23, 0.08);
            border-radius: var(--radius-pill);
            padding: 0 20px 0 16px;
            height: var(--nav-height);
            box-shadow: 0 4px 20px rgba(26, 24, 23, 0.05);
            transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .nav-dock.scrolled {
            background: rgba(255, 255, 255, 0.95);
            box-shadow: 0 8px 30px rgba(26, 24, 23, 0.09);
            border-color: rgba(26, 24, 23, 0.12);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-weight: 800;
            font-size: 18px;
            color: var(--text-main);
            letter-spacing: -0.01em;
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-inverse);
            font-size: 16px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2px;
            list-style: none;
            flex: 1;
            justify-content: center;
            flex-wrap: nowrap;
            overflow: hidden;
            margin: 0;
        }

        .nav-links li {
            flex-shrink: 0;
        }

        .nav-links a {
            display: inline-block;
            padding: 4px 13px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-sub);
            border-radius: var(--radius-pill);
            position: relative;
            transition: color 0.25s ease, background-color 0.3s ease;
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--text-main);
            background: rgba(26, 24, 23, 0.04);
        }

        .nav-links a.active {
            color: var(--secondary);
            font-weight: 600;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--secondary);
            border-radius: 2px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .nav-search-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-sub);
            background: transparent;
            transition: color 0.25s ease, background-color 0.3s ease, transform 0.25s ease;
            font-size: 15px;
        }

        .nav-search-btn:hover {
            color: var(--text-main);
            background: rgba(26, 24, 23, 0.05);
            transform: scale(1.05);
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            height: 38px;
            padding: 0 18px;
            background: var(--secondary);
            color: #fff;
            border-radius: var(--radius-pill);
            font-size: 14px;
            font-weight: 600;
            white-space: nowrap;
            transition: background-color 0.3s ease, transform 0.25s ease, box-shadow 0.3s ease;
            box-shadow: 0 2px 6px rgba(196, 62, 47, 0.2);
        }

        .nav-cta:hover {
            background: var(--secondary-hover);
            color: #fff;
            transform: translateY(-1px);
            box-shadow: 0 6px 16px rgba(196, 62, 47, 0.28);
        }

        .nav-hamburger {
            display: none;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            color: var(--text-main);
            font-size: 16px;
            background: transparent;
            transition: background-color 0.3s ease;
        }

        .nav-hamburger:hover {
            background: rgba(26, 24, 23, 0.05);
        }

        .mobile-menu {
            display: none;
            pointer-events: auto;
            position: fixed;
            top: calc(20px + var(--nav-height) + 10px);
            left: 50%;
            transform: translateX(-50%);
            width: 90%;
            max-width: 400px;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid rgba(26, 24, 23, 0.08);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            padding: 16px;
            flex-direction: column;
            gap: 4px;
            z-index: 9998;
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu a {
            display: block;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-sub);
            transition: color 0.25s ease, background-color 0.3s ease;
        }

        .mobile-menu a:hover {
            color: var(--text-main);
            background: rgba(26, 24, 23, 0.04);
        }

        .mobile-menu a.active {
            color: var(--secondary);
            background: rgba(196, 62, 47, 0.06);
            font-weight: 600;
        }

        /* ============ 按钮系统 ============ */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 28px;
            background: var(--secondary);
            color: #fff;
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.5;
            border: none;
            cursor: pointer;
            transition: background-color 0.3s ease, transform 0.25s ease, box-shadow 0.3s ease;
            box-shadow: 0 4px 14px rgba(196, 62, 47, 0.22);
        }

        .btn-primary:hover {
            background: var(--secondary-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(196, 62, 47, 0.3);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(196, 62, 47, 0.2);
        }

        .btn-primary:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 3px;
            background: var(--secondary-hover);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            background: transparent;
            color: var(--text-main);
            border: 1px solid rgba(26, 24, 23, 0.18);
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 500;
            line-height: 1.5;
            cursor: pointer;
            transition: border-color 0.3s ease, color 0.3s ease, background-color 0.3s ease, transform 0.25s ease;
        }

        .btn-secondary:hover {
            border-color: var(--secondary);
            color: var(--secondary);
            background: rgba(196, 62, 47, 0.04);
            transform: translateY(-2px);
        }

        .btn-secondary:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 3px;
            border-color: var(--secondary);
        }

        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 26px;
            background: transparent;
            color: var(--text-inverse);
            border: 1px solid rgba(246, 243, 238, 0.35);
            border-radius: var(--radius-pill);
            font-size: 15px;
            font-weight: 500;
            cursor: pointer;
            transition: border-color 0.3s ease, color 0.3s ease, background-color 0.3s ease;
        }

        .btn-outline-light:hover {
            border-color: #fff;
            color: #fff;
            background: rgba(246, 243, 238, 0.08);
        }

        /* ============ Hero ============ */
        .page-hero {
            padding: calc(var(--nav-height) + 80px) 0 60px;
            background: var(--bg);
            position: relative;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--secondary), transparent);
            opacity: 0.4;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1.05fr 0.95fr;
            gap: 48px;
            align-items: center;
        }

        .hero-text {
            padding-right: 16px;
        }

        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            background: rgba(196, 62, 47, 0.07);
            color: var(--secondary);
            border-radius: var(--radius-pill);
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.02em;
            margin-bottom: 18px;
            border: 1px solid rgba(196, 62, 47, 0.15);
        }

        .hero-eyebrow i {
            font-size: 12px;
        }

        .hero-text h1 {
            font-size: 44px;
            line-height: 1.16;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-main);
            margin-bottom: 20px;
        }

        .hero-text h1 .highlight {
            color: var(--secondary);
            position: relative;
        }

        .hero-text h1 .highlight::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 0;
            right: 0;
            height: 4px;
            background: rgba(196, 62, 47, 0.2);
            border-radius: 2px;
        }

        .hero-lead {
            font-size: 17px;
            line-height: 1.85;
            color: var(--text-sub);
            margin-bottom: 30px;
            max-width: 520px;
        }

        .hero-cta-group {
            display: flex;
            align-items: center;
            gap: 14px;
            flex-wrap: wrap;
            margin-bottom: 24px;
        }

        .hero-meta {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }

        .hero-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-weak);
            font-weight: 500;
        }

        .hero-meta span i {
            color: var(--accent);
            font-size: 13px;
        }

        .hero-visual {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .hero-visual img {
            width: 100%;
            height: 420px;
            object-fit: cover;
            transition: transform 0.5s ease;
        }

        .hero-visual:hover img {
            transform: scale(1.02);
        }

        .hero-visual-badge {
            position: absolute;
            bottom: 20px;
            right: 20px;
            background: rgba(26, 24, 23, 0.85);
            backdrop-filter: blur(10px);
            -webkit-backdrop-filter: blur(10px);
            color: #fff;
            padding: 14px 20px;
            border-radius: var(--radius-md);
            display: flex;
            flex-direction: column;
            align-items: center;
            border: 1px solid rgba(246, 243, 238, 0.2);
        }

        .badge-value {
            font-size: 30px;
            font-weight: 800;
            font-family: var(--font-number);
            line-height: 1;
            color: var(--secondary);
        }

        .badge-label {
            font-size: 12px;
            font-weight: 500;
            color: var(--text-inverse-sub);
            margin-top: 4px;
        }

        /* ============ Section 通用 ============ */
        .section {
            padding: 80px 0;
        }

        .section-alt {
            background: var(--bg-alt);
        }

        .section-dark {
            background: var(--primary);
            color: var(--text-inverse);
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-header h2 {
            font-size: 32px;
            line-height: 1.25;
            font-weight: 700;
            letter-spacing: -0.015em;
            color: inherit;
            margin-bottom: 12px;
        }

        .section-header .subtitle {
            font-size: 16px;
            color: var(--text-weak);
            line-height: 1.75;
            max-width: 620px;
        }

        .section-dark .section-header .subtitle {
            color: var(--text-inverse-sub);
        }

        .divider-accent {
            width: 40px;
            height: 3px;
            background: var(--secondary);
            border-radius: 2px;
            margin-bottom: 16px;
        }

        /* ============ 装备卡片网格 ============ */
        .equipment-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .equipment-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-xs);
            transition: box-shadow 0.3s ease, transform 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        .equipment-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .equipment-card-image {
            position: relative;
            height: 240px;
            overflow: hidden;
            background: var(--bg-alt);
        }

        .equipment-card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.45s ease;
        }

        .equipment-card:hover .equipment-card-image img {
            transform: scale(1.04);
        }

        .equipment-tags {
            position: absolute;
            top: 12px;
            left: 12px;
            display: flex;
            gap: 6px;
            flex-wrap: wrap;
        }

        .equipment-tag {
            padding: 4px 10px;
            background: rgba(26, 24, 23, 0.75);
            color: #fff;
            border-radius: var(--radius-pill);
            font-size: 11px;
            font-weight: 500;
            letter-spacing: 0.02em;
            backdrop-filter: blur(6px);
            -webkit-backdrop-filter: blur(6px);
        }

        .equipment-tag.tag-accent {
            background: rgba(196, 62, 47, 0.85);
        }

        .equipment-card-body {
            padding: 20px 22px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .equipment-card-body h3 {
            font-size: 19px;
            font-weight: 700;
            letter-spacing: -0.01em;
            color: var(--text-main);
            margin-bottom: 4px;
            line-height: 1.3;
        }

        .equipment-model {
            font-size: 13px;
            color: var(--text-weak);
            font-family: var(--font-number);
            font-weight: 500;
            margin-bottom: 10px;
            letter-spacing: 0.03em;
        }

        .equipment-desc {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-sub);
            flex: 1;
        }

        .equipment-card-footer {
            margin-top: 16px;
            padding-top: 14px;
            border-top: 1px solid var(--border-lighter);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
        }

        .equipment-specs {
            display: flex;
            gap: 12px;
            font-size: 12px;
            color: var(--text-weak);
        }

        .equipment-specs span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .equipment-specs i {
            color: var(--accent);
            font-size: 11px;
        }

        .equipment-link {
            font-size: 13px;
            font-weight: 600;
            color: var(--secondary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
            white-space: nowrap;
            transition: gap 0.25s ease;
        }

        .equipment-link:hover {
            gap: 8px;
            color: var(--secondary-hover);
        }

        /* ============ 对比表格 ============ */
        .table-scroll {
            overflow-x: auto;
            margin: 0 -16px;
            padding: 0 16px;
            -webkit-overflow-scrolling: touch;
        }

        .comparison-table {
            width: 100%;
            min-width: 720px;
            border-collapse: separate;
            border-spacing: 0;
            background: var(--surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-xs);
        }

        .comparison-table thead th {
            background: var(--primary);
            color: var(--text-inverse);
            font-size: 14px;
            font-weight: 600;
            text-align: center;
            padding: 16px 18px;
            border-bottom: 2px solid var(--secondary);
            white-space: nowrap;
        }

        .comparison-table thead th:first-child {
            text-align: left;
            min-width: 140px;
        }

        .comparison-table tbody td {
            font-size: 14px;
            color: var(--text-sub);
            text-align: center;
            padding: 13px 18px;
            border-bottom: 1px solid var(--border-lighter);
            vertical-align: middle;
        }

        .comparison-table tbody tr:last-child td {
            border-bottom: none;
        }

        .comparison-table tbody tr:nth-child(even) {
            background: var(--bg-alt);
        }

        .comparison-table tbody td:first-child {
            text-align: left;
            font-weight: 600;
            color: var(--text-main);
            white-space: nowrap;
        }

        .comparison-table .highlight-cell {
            color: var(--secondary);
            font-weight: 700;
        }

        .comparison-table tbody tr:hover {
            background: rgba(196, 62, 47, 0.03);
        }

        /* ============ 选购指南 ============ */
        .guide-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
        }

        .guide-text-block {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .guide-text-block h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-main);
            line-height: 1.35;
            margin-bottom: 0;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .guide-text-block h3 .step-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 30px;
            height: 30px;
            background: var(--accent);
            color: #fff;
            border-radius: 50%;
            font-size: 14px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .guide-text-block p {
            font-size: 15px;
            line-height: 1.85;
            color: var(--text-sub);
            margin-bottom: 0;
        }

        .guide-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
            position: relative;
            height: 100%;
            min-height: 360px;
        }

        .guide-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* ============ 适用场景 ============ */
        .scene-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 18px;
        }

        .scene-card {
            background: var(--surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            padding: 24px;
            box-shadow: var(--shadow-xs);
            transition: box-shadow 0.3s ease, transform 0.3s ease;
            text-align: center;
        }

        .scene-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }

        .scene-icon {
            width: 48px;
            height: 48px;
            margin: 0 auto 14px;
            border-radius: 50%;
            background: rgba(196, 62, 47, 0.08);
            color: var(--secondary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 19px;
        }

        .scene-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 8px;
        }

        .scene-card p {
            font-size: 13px;
            line-height: 1.7;
            color: var(--text-weak);
            margin-bottom: 0;
        }

        /* ============ 数据指标条 ============ */
        .metrics-bar {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            overflow: hidden;
            box-shadow: var(--shadow-xs);
        }

        .metric-item {
            padding: 28px 24px;
            text-align: center;
            border-right: 1px solid var(--border-lighter);
            transition: background-color 0.3s ease;
        }

        .metric-item:last-child {
            border-right: none;
        }

        .metric-item:hover {
            background: var(--bg-alt);
        }

        .metric-number {
            font-size: 36px;
            font-weight: 800;
            font-family: var(--font-number);
            color: var(--text-main);
            line-height: 1.1;
            margin-bottom: 6px;
        }

        .metric-number .unit {
            font-size: 16px;
            font-weight: 600;
            color: var(--secondary);
            margin-left: 2px;
        }

        .metric-label {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-sub);
            margin-bottom: 4px;
        }

        .metric-note {
            font-size: 12px;
            color: var(--text-weak);
            line-height: 1.5;
        }

        /* ============ FAQ ============ */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .accordion {
            margin: 0;
            list-style: none;
        }

        .accordion-item {
            background: var(--surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            box-shadow: var(--shadow-xs);
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
        }

        .accordion-item:hover {
            border-color: rgba(26, 24, 23, 0.15);
            box-shadow: var(--shadow-md);
        }

        .accordion-title {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            cursor: pointer;
            position: relative;
            transition: color 0.3s ease;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            font-family: inherit;
        }

        .accordion-title:hover {
            color: var(--secondary);
        }

        .accordion-title .faq-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 26px;
            height: 26px;
            border-radius: 50%;
            background: rgba(168, 133, 92, 0.14);
            color: var(--accent);
            font-size: 12px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .accordion-title .faq-arrow {
            margin-left: auto;
            font-size: 14px;
            color: var(--text-weak);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .accordion-item.is-active .faq-arrow {
            transform: rotate(180deg);
            color: var(--secondary);
        }

        .accordion-content {
            padding: 0 22px 20px 60px;
            font-size: 15px;
            line-height: 1.85;
            color: var(--text-sub);
        }

        .accordion-content p {
            margin-bottom: 0;
        }

        /* ============ CTA 表单 ============ */
        .cta-section {
            padding: 80px 0;
        }

        .cta-container {
            background: var(--primary);
            border-radius: var(--radius-lg);
            padding: 56px 48px;
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 48px;
            align-items: center;
            position: relative;
            overflow: hidden;
        }

        .cta-container::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(196, 62, 47, 0.15);
            pointer-events: none;
        }

        .cta-container::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: 30%;
            width: 280px;
            height: 280px;
            border-radius: 50%;
            background: rgba(168, 133, 92, 0.08);
            pointer-events: none;
        }

        .cta-info {
            position: relative;
            z-index: 1;
        }

        .cta-info h2 {
            font-size: 30px;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-inverse);
            margin-bottom: 14px;
        }

        .cta-info p {
            font-size: 15px;
            line-height: 1.8;
            color: var(--text-inverse-sub);
            margin-bottom: 22px;
        }

        .cta-contact-list {
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .cta-contact-list span {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-inverse-sub);
        }

        .cta-contact-list i {
            color: var(--accent);
            font-size: 14px;
            width: 18px;
            text-align: center;
        }

        .quote-form {
            background: var(--surface);
            border-radius: var(--radius-md);
            padding: 32px;
            position: relative;
            z-index: 1;
            box-shadow: var(--shadow-lg);
        }

        .quote-form h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 20px;
        }

        .form-group {
            margin-bottom: 16px;
        }

        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-main);
            margin-bottom: 6px;
        }

        .form-group input,
        .form-group select,
        .form-group textarea {
            width: 100%;
            background: var(--surface);
            border: 1px solid rgba(26, 24, 23, 0.12);
            border-radius: var(--radius-sm);
            padding: 11px 14px;
            font-size: 15px;
            color: var(--text-main);
            line-height: 1.6;
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
            appearance: none;
            -webkit-appearance: none;
        }

        .form-group input:focus,
        .form-group select:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--secondary);
            box-shadow: 0 0 0 3px rgba(196, 62, 47, 0.12);
        }

        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: var(--text-weak);
        }

        .form-group select {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='none' stroke='%235C5552' stroke-width='1.5' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 14px center;
            padding-right: 38px;
        }

        .form-group textarea {
            resize: vertical;
            min-height: 90px;
        }

        .form-submit {
            width: 100%;
            padding: 13px 20px;
            background: var(--secondary);
            color: #fff;
            border: none;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: background-color 0.3s ease, transform 0.25s ease, box-shadow 0.3s ease;
            box-shadow: 0 4px 14px rgba(196, 62, 47, 0.2);
            font-family: inherit;
        }

        .form-submit:hover {
            background: var(--secondary-hover);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(196, 62, 47, 0.28);
        }

        .form-submit:focus-visible {
            outline: 2px solid var(--secondary);
            outline-offset: 3px;
            background: var(--secondary-hover);
        }

        .form-note {
            display: block;
            text-align: center;
            font-size: 12px;
            color: var(--text-weak);
            margin-top: 10px;
        }

        /* ============ CTA 底部条 ============ */
        .bottom-cta {
            padding: 30px 0 60px;
        }

        .bottom-cta-inner {
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            padding: 32px 36px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            flex-wrap: wrap;
            box-shadow: var(--shadow-xs);
        }

        .bottom-cta-text h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 4px;
        }

        .bottom-cta-text p {
            font-size: 14px;
            color: var(--text-sub);
            margin-bottom: 0;
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: var(--primary);
            color: var(--text-inverse);
            padding: 60px 0 0;
        }

        .footer-container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .footer-main {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(246, 243, 238, 0.15);
        }

        .footer-brand-col {}

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--accent);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.01em;
        }

        .footer-about {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-inverse-sub);
            max-width: 280px;
            margin-bottom: 0;
        }

        .footer-links h4 {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.01em;
        }

        .footer-links a {
            display: block;
            font-size: 14px;
            color: var(--text-inverse-sub);
            margin-bottom: 10px;
            transition: color 0.25s ease, transform 0.25s ease;
        }

        .footer-links a:hover {
            color: #fff;
            transform: translateX(4px);
        }

        .footer-bottom {
            padding: 20px 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 12px;
            color: var(--text-inverse-sub);
        }

        .footer-bottom p {
            margin-bottom: 0;
            font-size: 12px;
            color: var(--text-inverse-sub);
        }

        .footer-bottom a {
            color: var(--text-inverse-sub);
            text-decoration: none;
            transition: color 0.25s ease;
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        /* ============ 响应式 ============ */
        @media screen and (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 32px;
                text-align: left;
            }

            .hero-text {
                padding-right: 0;
            }

            .hero-text h1 {
                font-size: 36px;
            }

            .hero-lead {
                max-width: 100%;
            }

            .hero-visual img {
                height: 320px;
            }

            .equipment-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }

            .guide-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .guide-image {
                min-height: 280px;
            }

            .scene-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }

            .metrics-bar {
                grid-template-columns: repeat(2, 1fr);
            }

            .metric-item {
                border-right: 1px solid var(--border-lighter);
                border-bottom: 1px solid var(--border-lighter);
            }

            .metric-item:nth-child(2n) {
                border-right: none;
            }

            .metric-item:nth-child(n+3) {
                border-bottom: none;
            }

            .cta-container {
                grid-template-columns: 1fr;
                padding: 40px 32px;
                gap: 32px;
            }

            .nav-links {
                gap: 0;
            }

            .nav-links a {
                padding: 4px 9px;
                font-size: 13px;
            }
        }

        @media screen and (max-width: 768px) {
            :root {
                --nav-height: 54px;
            }

            .site-header {
                top: 14px;
            }

            .nav-dock {
                padding: 0 14px 0 12px;
                height: var(--nav-height);
                gap: 10px;
            }

            .nav-links {
                display: none;
            }

            .nav-cta {
                display: none;
            }

            .nav-hamburger {
                display: flex;
            }

            .nav-logo {
                font-size: 16px;
            }

            .nav-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 14px;
            }

            .nav-search-btn {
                width: 32px;
                height: 32px;
                font-size: 14px;
            }

            .page-hero {
                padding: calc(var(--nav-height) + 56px) 0 40px;
            }

            .hero-text h1 {
                font-size: 30px;
                line-height: 1.2;
            }

            .hero-lead {
                font-size: 15px;
                line-height: 1.75;
            }

            .hero-visual img {
                height: 240px;
            }

            .section {
                padding: 56px 0;
            }

            .section-header h2 {
                font-size: 26px;
            }

            .equipment-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .equipment-card-image {
                height: 200px;
            }

            .scene-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .scene-card {
                padding: 16px;
            }

            .metrics-bar {
                grid-template-columns: 1fr 1fr;
            }

            .metric-item {
                padding: 20px 16px;
            }

            .metric-number {
                font-size: 28px;
            }

            .comparison-table thead th,
            .comparison-table tbody td {
                padding: 11px 13px;
                font-size: 13px;
            }

            .cta-container {
                padding: 28px 20px;
                gap: 24px;
            }

            .cta-info h2 {
                font-size: 24px;
            }

            .quote-form {
                padding: 22px 18px;
            }

            .footer-main {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }

            .footer-brand-col {
                grid-column: 1 / -1;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                text-align: left;
                gap: 6px;
            }

            .bottom-cta-inner {
                flex-direction: column;
                align-items: flex-start;
                padding: 24px 20px;
            }

            .accordion-title {
                padding: 15px 16px;
                font-size: 15px;
                gap: 8px;
            }

            .accordion-content {
                padding: 0 16px 16px 44px;
                font-size: 14px;
            }
        }

        @media screen and (max-width: 520px) {
            .container-custom {
                padding-left: 14px;
                padding-right: 14px;
            }

            .hero-text h1 {
                font-size: 26px;
            }

            .hero-cta-group {
                flex-direction: column;
                align-items: stretch;
                gap: 10px;
            }

            .hero-cta-group .btn-primary,
            .hero-cta-group .btn-secondary {
                width: 100%;
            }

            .hero-meta {
                gap: 12px;
                font-size: 12px;
            }

            .scene-grid {
                grid-template-columns: 1fr;
                gap: 10px;
            }

            .metrics-bar {
                grid-template-columns: 1fr;
            }

            .metric-item {
                border-right: none;
                border-bottom: 1px solid var(--border-lighter);
            }

            .metric-item:last-child {
                border-bottom: none;
            }

            .footer-main {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-brand-col {
                grid-column: auto;
            }

            .comparison-table {
                min-width: 600px;
            }

            .cta-container {
                border-radius: var(--radius-md);
                padding: 22px 16px;
            }

            .cta-info h2 {
                font-size: 21px;
            }

            .quote-form {
                padding: 18px 14px;
            }

            .form-submit {
                font-size: 14px;
                padding: 12px 16px;
            }
        }

/* roulang page: category7 */
:root {
            --primary: #1A1817;
            --secondary: #C43E2F;
            --secondary-hover: #A63427;
            --bg: #F6F3EE;
            --bg-alt: #FBFAF7;
            --surface: #FFFFFF;
            --accent: #A8855C;
            --text-main: #1A1817;
            --text-sub: #5C5552;
            --text-weak: #8C837E;
            --text-inverse: #F6F3EE;
            --text-inverse-sub: #B8B0A9;
            --border-light: rgba(26, 24, 23, 0.08);
            --border-lighter: rgba(26, 24, 23, 0.06);
            --border-inverse: rgba(246, 243, 238, 0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-pill: 999px;
            --shadow-xs: 0 2px 8px rgba(26, 24, 23, 0.04);
            --shadow-md: 0 8px 24px rgba(26, 24, 23, 0.08);
            --shadow-lg: 0 16px 40px rgba(26, 24, 23, 0.12);
            --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            --font-number: "DIN Alternate", "Roboto Mono", "SF Mono", monospace;
            --container-max: 1200px;
            --section-spacing-desktop: 120px;
            --section-spacing-mobile: 72px;
            --nav-height: 60px;
            --nav-height-mobile: 54px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text-main);
            line-height: 1.8;
            font-size: 16px;
            font-weight: 400;
            min-height: 100vh;
            overflow-x: hidden;
            margin: 0;
            padding: 0;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease, background-color 0.3s ease, transform 0.25s ease, box-shadow 0.3s ease;
        }

        a:hover {
            text-decoration: none;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
        }

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-main);
        }

        p {
            margin: 0 0 1em;
        }

        ul,
        ol {
            margin: 0;
            padding: 0;
            list-style: none;
        }

        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        /* ============ 浮动 Dock 导航 ============ */
        .site-header {
            position: fixed;
            top: 20px;
            left: 0;
            right: 0;
            z-index: 9999;
            display: flex;
            justify-content: center;
            pointer-events: none;
            transition: top 0.3s ease;
            padding: 0 16px;
        }

        .site-header.scrolled {
            top: 8px;
        }

        .nav-dock {
            pointer-events: auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            width: 100%;
            max-width: 1140px;
            margin: 0 auto;
            background: rgba(255, 255, 255, 0.88);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border: 1px solid rgba(26, 24, 23, 0.08);
            border-radius: var(--radius-pill);
            padding: 0 20px 0 16px;
            height: var(--nav-height);
            box-shadow: 0 4px 20px rgba(26, 24, 23, 0.05);
            transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }

        .nav-dock.scrolled {
            background: rgba(255, 255, 255, 0.95);
            box-shadow: 0 8px 30px rgba(26, 24, 23, 0.09);
            border-color: rgba(26, 24, 23, 0.12);
        }

        .nav-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
            font-weight: 800;
            font-size: 18px;
            color: var(--text-main);
            letter-spacing: -0.01em;
        }

        .nav-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-inverse);
            font-size: 16px;
            font-weight: 700;
            flex-shrink: 0;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 2px;
            list-style: none;
            flex: 1;
            justify-content: center;
            flex-wrap: nowrap;
            overflow: hidden;
        }

        .nav-links li {
            flex-shrink: 0;
        }

        .nav-links a {
            display: inline-block;
            padding: 4px 13px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-sub);
            border-radius: var(--radius-pill);
            position: relative;
            transition: color 0.25s ease, background-color 0.3s ease;
            white-space: nowrap;
        }

        .nav-links a:hover {
            color: var(--text-main);
            background: rgba(26, 24, 23, 0.04);
        }

        .nav-links a.active {
            color: var(--secondary);
            font-weight: 600;
        }

        .nav-links a.active::after {
            content: '';
            position: absolute;
            bottom: -1px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--secondary);
            border-radius: 1px;
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .nav-search-btn {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-sub);
            font-size: 16px;
            transition: color 0.25s ease, background-color 0.3s ease, transform 0.25s ease;
        }

        .nav-search-btn:hover {
            color: var(--text-main);
            background: rgba(26, 24, 23, 0.05);
            transform: scale(1.05);
        }

        .nav-cta {
            height: 38px;
            padding: 0 18px;
            border-radius: var(--radius-pill);
            background: var(--secondary);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 6px;
            white-space: nowrap;
            transition: background-color 0.3s ease, transform 0.25s ease, box-shadow 0.3s ease;
        }

        .nav-cta:hover {
            background: var(--secondary-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .nav-hamburger {
            display: none;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            align-items: center;
            justify-content: center;
            color: var(--text-main);
            font-size: 18px;
        }

        .mobile-menu {
            display: none;
            pointer-events: auto;
            position: fixed;
            top: calc(var(--nav-height) + 30px);
            left: 50%;
            transform: translateX(-50%);
            width: calc(100% - 32px);
            max-width: 480px;
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(20px);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-lg);
            padding: 20px;
            flex-direction: column;
            gap: 4px;
            z-index: 9998;
        }

        .mobile-menu.open {
            display: flex;
        }

        .mobile-menu a {
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-sub);
        }

        .mobile-menu a:hover {
            background: rgba(26, 24, 23, 0.04);
            color: var(--text-main);
        }

        .mobile-menu a.active {
            color: var(--secondary);
            font-weight: 600;
            background: rgba(196, 62, 47, 0.06);
        }

        /* ============ 页面 Hero ============ */
        .page-hero {
            padding: 160px 0 80px;
            background: var(--bg);
            position: relative;
            overflow: hidden;
        }

        .page-hero::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 100%;
            background: radial-gradient(ellipse at 20% 30%, rgba(196, 62, 47, 0.04), transparent 60%);
            pointer-events: none;
        }

        .page-hero .container-custom {
            position: relative;
            z-index: 1;
        }

        .hero-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }

        .hero-text h1 {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
        }

        .hero-text h1 .highlight {
            color: var(--secondary);
            position: relative;
        }

        .hero-text .hero-sub {
            font-size: 18px;
            color: var(--text-sub);
            line-height: 1.7;
            max-width: 520px;
            margin-bottom: 30px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            border-radius: var(--radius-pill);
            background: rgba(196, 62, 47, 0.08);
            color: var(--secondary);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 18px;
            letter-spacing: 0.02em;
        }

        .hero-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            position: relative;
        }

        .hero-image img {
            width: 100%;
            height: auto;
            aspect-ratio: 4/3;
            object-fit: cover;
        }

        .hero-image::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 40%;
            background: linear-gradient(to top, rgba(26,24,23,0.35), transparent);
            pointer-events: none;
        }

        .hero-image .overlay-label {
            position: absolute;
            bottom: 20px;
            left: 24px;
            z-index: 2;
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            letter-spacing: 0.02em;
        }

        /* ============ 合作模式简述 ============ */
        .coop-intro {
            padding: 80px 0;
            background: var(--bg-alt);
        }

        .coop-intro .section-label {
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--secondary);
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .coop-intro h2 {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 24px;
            letter-spacing: -0.01em;
        }

        .coop-intro .intro-text {
            font-size: 17px;
            color: var(--text-sub);
            line-height: 1.9;
            max-width: 820px;
        }

        /* ============ 服务详情区块 ============ */
        .service-details {
            padding: 100px 0;
            background: var(--bg);
        }

        .detail-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            margin-bottom: 80px;
            align-items: start;
        }

        .detail-block:last-child {
            margin-bottom: 0;
        }

        .detail-block .detail-text h3 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .detail-block .detail-text p {
            font-size: 16px;
            color: var(--text-sub);
            line-height: 1.9;
            margin-bottom: 14px;
        }

        .detail-block .detail-text .detail-highlight {
            border-left: 3px solid var(--secondary);
            padding-left: 18px;
            margin: 20px 0;
            font-size: 15px;
            color: var(--text-main);
            font-weight: 500;
            line-height: 1.8;
        }

        .detail-block .detail-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }

        .detail-block .detail-image img {
            width: 100%;
            height: auto;
            aspect-ratio: 4/3;
            object-fit: cover;
        }

        .detail-block.reverse {
            direction: rtl;
        }

        .detail-block.reverse>* {
            direction: ltr;
        }

        /* ============ 合作流程 ============ */
        .coop-process {
            padding: 100px 0;
            background: var(--primary);
        }

        .coop-process .section-label {
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--accent);
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .coop-process h2 {
            font-size: 32px;
            font-weight: 700;
            color: var(--text-inverse);
            margin-bottom: 50px;
            letter-spacing: -0.01em;
        }

        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .process-step {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid var(--border-inverse);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            transition: background 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
        }

        .process-step:hover {
            background: rgba(255, 255, 255, 0.07);
            border-color: rgba(196, 62, 47, 0.35);
            transform: translateY(-4px);
        }

        .process-step .step-number {
            font-family: var(--font-number);
            font-size: 40px;
            font-weight: 800;
            color: var(--secondary);
            line-height: 1.2;
            margin-bottom: 12px;
            display: block;
        }

        .process-step h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-inverse);
            margin-bottom: 10px;
        }

        .process-step p {
            font-size: 14px;
            color: var(--text-inverse-sub);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ============ 联系表单 ============ */
        .contact-section {
            padding: 100px 0;
            background: var(--bg-alt);
        }

        .contact-section .section-label {
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            color: var(--secondary);
            text-transform: uppercase;
            margin-bottom: 12px;
        }

        .contact-section h2 {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .contact-section .contact-sub {
            font-size: 16px;
            color: var(--text-sub);
            max-width: 600px;
            margin-bottom: 40px;
            line-height: 1.8;
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 0.7fr;
            gap: 48px;
            align-items: start;
        }

        .contact-form {
            background: var(--surface);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-xs);
        }

        .contact-form .form-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 18px;
            margin-bottom: 18px;
        }

        .contact-form .form-group {
            margin-bottom: 18px;
        }

        .contact-form label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
            margin-bottom: 6px;
            letter-spacing: 0.01em;
        }

        .contact-form input,
        .contact-form select,
        .contact-form textarea {
            width: 100%;
            padding: 12px 14px;
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            font-size: 15px;
            color: var(--text-main);
            background: var(--bg-alt);
            transition: border-color 0.3s ease, box-shadow 0.3s ease;
            outline: none;
        }

        .contact-form input:focus,
        .contact-form select:focus,
        .contact-form textarea:focus {
            border-color: var(--secondary);
            box-shadow: 0 0 0 2px rgba(196, 62, 47, 0.15);
        }

        .contact-form textarea {
            min-height: 120px;
            resize: vertical;
        }

        .contact-form .submit-btn {
            width: 100%;
            padding: 14px 20px;
            background: var(--secondary);
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 16px;
            font-weight: 700;
            letter-spacing: 0.02em;
            transition: background-color 0.3s ease, transform 0.25s ease, box-shadow 0.3s ease;
        }

        .contact-form .submit-btn:hover {
            background: var(--secondary-hover);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .contact-form .submit-btn:active {
            transform: translateY(1px);
            box-shadow: var(--shadow-xs);
        }

        .contact-info {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .contact-info .info-card {
            background: var(--surface);
            border-radius: var(--radius-md);
            padding: 22px 24px;
            border: 1px solid var(--border-light);
            display: flex;
            align-items: flex-start;
            gap: 14px;
        }

        .contact-info .info-card .info-icon {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(196, 62, 47, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--secondary);
            font-size: 16px;
            flex-shrink: 0;
        }

        .contact-info .info-card h4 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .contact-info .info-card p {
            font-size: 14px;
            color: var(--text-sub);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: var(--primary);
            color: var(--text-inverse);
            padding: 60px 0 30px;
        }

        .footer-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .footer-main {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid var(--border-inverse);
        }

        .footer-brand-col .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-logo .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 16px;
            font-weight: 700;
        }

        .footer-logo .logo-text {
            font-size: 18px;
            font-weight: 800;
        }

        .footer-about {
            font-size: 14px;
            color: var(--text-inverse-sub);
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-links h4 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-inverse);
            margin-bottom: 14px;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }

        .footer-links a {
            display: block;
            font-size: 14px;
            color: var(--text-inverse-sub);
            padding: 4px 0;
            transition: color 0.25s ease;
        }

        .footer-links a:hover {
            color: #fff;
        }

        .footer-bottom {
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 10px 24px;
            align-items: center;
            justify-content: space-between;
            font-size: 13px;
            color: var(--text-inverse-sub);
        }

        .footer-bottom p {
            margin-bottom: 0;
        }

        .footer-bottom a {
            color: var(--text-inverse-sub);
            transition: color 0.25s ease;
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        /* ============ 响应式 ============ */
        @media (max-width: 1024px) {
            .hero-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }

            .hero-image {
                order: -1;
            }

            .contact-grid {
                grid-template-columns: 1fr;
                gap: 36px;
            }

            .detail-block {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            .detail-block.reverse {
                direction: ltr;
            }

            .process-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .footer-main {
                grid-template-columns: 1.5fr 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
            }

            .nav-hamburger {
                display: flex;
            }

            .nav-cta {
                display: none;
            }

            .nav-dock {
                padding: 0 14px;
            }

            .page-hero {
                padding: 120px 0 60px;
            }

            .hero-text h1 {
                font-size: 36px;
            }

            .hero-text .hero-sub {
                font-size: 16px;
            }

            .coop-intro {
                padding: 60px 0;
            }

            .coop-intro h2 {
                font-size: 26px;
            }

            .service-details {
                padding: 60px 0;
            }

            .coop-process {
                padding: 60px 0;
            }

            .coop-process h2 {
                font-size: 26px;
            }

            .contact-section {
                padding: 60px 0;
            }

            .contact-section h2 {
                font-size: 26px;
            }

            .contact-form .form-row {
                grid-template-columns: 1fr;
                gap: 0;
            }

            .process-grid {
                grid-template-columns: 1fr;
            }

            .footer-main {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
        }

        @media (max-width: 520px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }

            .hero-text h1 {
                font-size: 28px;
            }

            .hero-badge {
                font-size: 12px;
                padding: 5px 12px;
            }

            .footer-main {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .contact-form {
                padding: 24px 18px;
            }

            .site-footer {
                padding: 40px 0 20px;
            }
        }