/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a1a2e;
            --primary-light: #16213e;
            --accent: #e94560;
            --accent-hover: #d63851;
            --accent-light: rgba(233, 69, 96, 0.08);
            --gold: #f5a623;
            --gold-light: rgba(245, 166, 35, 0.12);
            --bg-white: #ffffff;
            --bg-light: #f7f8fc;
            --bg-dark: #0f0f1a;
            --bg-card: #ffffff;
            --text-dark: #1a1a2e;
            --text-body: #2d2d44;
            --text-muted: #7a7a8c;
            --text-light: #a0a0b4;
            --text-white: #ffffff;
            --border: #e8e8f0;
            --border-light: #f0f0f6;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.10);
            --shadow-hover: 0 8px 32px rgba(0, 0, 0, 0.12);
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: all 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --max-width: 1200px;
            --header-h: 72px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::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);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-light);
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover {
            color: var(--accent);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            border: none;
            outline: none;
            transition: var(--transition);
        }

        button {
            cursor: pointer;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-dark);
            font-weight: 700;
            line-height: 1.3;
        }

        /* ===== 容器 ===== */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-h);
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .logo {
            font-size: 22px;
            font-weight: 800;
            color: var(--text-dark);
            letter-spacing: 0.5px;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }

        .logo .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: var(--accent);
            color: #fff;
            border-radius: 8px;
            font-size: 18px;
            font-weight: 700;
        }

        .logo span {
            color: var(--accent);
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 40px;
        }

        .main-nav a {
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            position: relative;
            padding: 6px 0;
            letter-spacing: 0.3px;
        }

        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 4px;
            transition: var(--transition);
        }

        .main-nav a:hover {
            color: var(--accent);
        }

        .main-nav a:hover::after {
            width: 100%;
        }

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

        .main-nav a.active::after {
            width: 100%;
        }

        .nav-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 22px;
            background: var(--accent);
            color: #fff !important;
            border-radius: 50px;
            font-weight: 600;
            font-size: 14px;
            letter-spacing: 0.3px;
            transition: var(--transition);
        }

        .nav-cta::after {
            display: none !important;
        }

        .nav-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(233, 69, 96, 0.35);
            color: #fff !important;
        }

        .nav-cta i {
            font-size: 13px;
        }

        /* 移动端汉堡 */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 4px;
            background: none;
            border: none;
            cursor: pointer;
        }

        .menu-toggle span {
            display: block;
            width: 26px;
            height: 2px;
            background: var(--text-dark);
            border-radius: 4px;
            transition: var(--transition);
        }

        .menu-toggle.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .menu-toggle.active span:nth-child(2) {
            opacity: 0;
        }

        .menu-toggle.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        @media (max-width: 768px) {
            .menu-toggle {
                display: flex;
            }

            .main-nav {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                -webkit-backdrop-filter: blur(16px);
                flex-direction: column;
                gap: 0;
                padding: 16px 24px 24px;
                border-bottom: 1px solid var(--border);
                transform: translateY(-110%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                box-shadow: var(--shadow-lg);
            }

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

            .main-nav a {
                padding: 14px 0;
                width: 100%;
                border-bottom: 1px solid var(--border-light);
                font-size: 16px;
            }

            .main-nav a:last-of-type {
                border-bottom: none;
            }

            .main-nav a::after {
                display: none;
            }

            .main-nav .nav-cta {
                margin-top: 12px;
                justify-content: center;
                width: 100%;
                padding: 12px 22px;
            }
        }

        /* ===== Hero 首屏 ===== */
        .hero {
            margin-top: var(--header-h);
            min-height: 86vh;
            display: flex;
            align-items: center;
            position: relative;
            background: var(--bg-dark) url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            color: var(--text-white);
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 15, 26, 0.88) 0%, rgba(26, 26, 46, 0.72) 50%, rgba(15, 15, 26, 0.88) 100%);
            z-index: 1;
        }

        .hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
            padding-top: 40px;
            padding-bottom: 40px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 20px;
            background: rgba(233, 69, 96, 0.18);
            border: 1px solid rgba(233, 69, 96, 0.30);
            border-radius: 50px;
            font-size: 13px;
            font-weight: 500;
            color: var(--gold);
            letter-spacing: 0.5px;
            margin-bottom: 28px;
            backdrop-filter: blur(4px);
        }

        .hero-badge i {
            font-size: 12px;
        }

        .hero h1 {
            font-size: 52px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 20px;
            letter-spacing: 1px;
            line-height: 1.2;
        }

        .hero h1 span {
            color: var(--gold);
        }

        .hero p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.78);
            max-width: 680px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            background: var(--accent);
            color: #fff;
            border-radius: 50px;
            font-weight: 600;
            font-size: 16px;
            letter-spacing: 0.3px;
            transition: var(--transition);
            border: none;
        }

        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-3px);
            box-shadow: 0 10px 30px rgba(233, 69, 96, 0.40);
            color: #fff;
        }

        .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            background: transparent;
            color: var(--text-white);
            border: 2px solid rgba(255, 255, 255, 0.30);
            border-radius: 50px;
            font-weight: 600;
            font-size: 16px;
            letter-spacing: 0.3px;
            transition: var(--transition);
        }

        .btn-outline:hover {
            border-color: var(--gold);
            color: var(--gold);
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(245, 166, 35, 0.20);
        }

        .hero-stats {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 40px 60px;
            margin-top: 56px;
            padding-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.10);
        }

        .hero-stat {
            text-align: center;
        }

        .hero-stat .num {
            font-size: 36px;
            font-weight: 800;
            color: var(--gold);
            letter-spacing: 1px;
        }

        .hero-stat .label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.60);
            margin-top: 4px;
            letter-spacing: 0.3px;
        }

        @media (max-width: 1024px) {
            .hero h1 {
                font-size: 40px;
            }
            .hero p {
                font-size: 16px;
            }
        }

        @media (max-width: 768px) {
            .hero {
                min-height: 70vh;
            }
            .hero h1 {
                font-size: 32px;
            }
            .hero p {
                font-size: 15px;
            }
            .hero-stats {
                gap: 24px 32px;
            }
            .hero-stat .num {
                font-size: 28px;
            }
            .btn-primary,
            .btn-outline {
                padding: 12px 28px;
                font-size: 14px;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 26px;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .hero-stats {
                flex-direction: column;
                gap: 16px;
            }
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 100px 0;
        }

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

        .section-dark {
            background: var(--bg-dark);
            color: var(--text-white);
        }

        .section-dark h2,
        .section-dark h3 {
            color: var(--text-white);
        }

        .section-header {
            text-align: center;
            margin-bottom: 60px;
        }

        .section-header .subtitle {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 4px 16px;
            background: var(--accent-light);
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            color: var(--accent);
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }

        .section-header h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .section-header p {
            font-size: 17px;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.8;
        }

        .section-dark .section-header h2 {
            color: var(--text-white);
        }

        .section-dark .section-header p {
            color: rgba(255, 255, 255, 0.65);
        }

        @media (max-width: 768px) {
            .section {
                padding: 64px 0;
            }
            .section-header h2 {
                font-size: 28px;
            }
            .section-header p {
                font-size: 15px;
            }
            .section-header {
                margin-bottom: 40px;
            }
        }

        /* ===== 核心优势 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 40px 32px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            text-align: center;
        }

        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: var(--accent);
        }

        .feature-card .icon-wrap {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 64px;
            height: 64px;
            background: var(--accent-light);
            border-radius: 16px;
            font-size: 28px;
            color: var(--accent);
            margin-bottom: 20px;
            transition: var(--transition);
        }

        .feature-card:hover .icon-wrap {
            background: var(--accent);
            color: #fff;
            transform: scale(1.05);
        }

        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .feature-card p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .features-grid {
                grid-template-columns: 1fr;
            }
            .feature-card {
                padding: 28px 20px;
            }
        }

        /* ===== 服务项目 ===== */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .service-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
        }

        .service-card .card-img {
            width: 100%;
            height: 220px;
            object-fit: cover;
            border-radius: 0;
            display: block;
        }

        .service-card .card-body {
            padding: 24px 28px 28px;
        }

        .service-card .card-body .tag {
            display: inline-block;
            padding: 3px 12px;
            background: var(--accent-light);
            color: var(--accent);
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.3px;
            margin-bottom: 10px;
        }

        .service-card .card-body h3 {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .service-card .card-body p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .service-card .card-body .btn-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
        }

        .service-card .card-body .btn-link:hover {
            gap: 10px;
        }

        @media (max-width: 1024px) {
            .services-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .services-grid {
                grid-template-columns: 1fr;
            }
            .service-card .card-img {
                height: 180px;
            }
        }

        /* ===== 资讯列表 ===== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 28px 32px;
            box-shadow: var(--shadow);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }

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

        .news-card .meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-light);
            margin-bottom: 12px;
        }

        .news-card .meta .cat {
            padding: 2px 10px;
            background: var(--gold-light);
            color: var(--gold);
            border-radius: 50px;
            font-weight: 600;
            font-size: 12px;
        }

        .news-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .news-card h3 a {
            color: var(--text-dark);
        }

        .news-card h3 a:hover {
            color: var(--accent);
        }

        .news-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            flex: 1;
        }

        .news-card .read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent);
            margin-top: 16px;
        }

        .news-card .read-more:hover {
            gap: 10px;
        }

        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 48px 20px;
            color: var(--text-muted);
            font-size: 16px;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px dashed var(--border);
        }

        .news-empty i {
            font-size: 32px;
            color: var(--text-light);
            margin-bottom: 12px;
            display: block;
        }

        @media (max-width: 768px) {
            .news-grid {
                grid-template-columns: 1fr;
            }
            .news-card {
                padding: 20px 24px;
            }
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            text-align: center;
        }

        .stat-item {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius);
            padding: 40px 20px;
            transition: var(--transition);
        }

        .stat-item:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(245, 166, 35, 0.30);
            transform: translateY(-4px);
        }

        .stat-item .icon {
            font-size: 32px;
            color: var(--gold);
            margin-bottom: 16px;
        }

        .stat-item .num {
            font-size: 38px;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: 1px;
        }

        .stat-item .num span {
            color: var(--gold);
        }

        .stat-item .label {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.60);
            margin-top: 6px;
            letter-spacing: 0.3px;
        }

        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr;
            }
            .stat-item {
                padding: 24px 16px;
            }
            .stat-item .num {
                font-size: 30px;
            }
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: var(--border);
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 28px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-dark);
            cursor: pointer;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }

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

        .faq-question i {
            font-size: 14px;
            color: var(--text-light);
            transition: var(--transition);
            flex-shrink: 0;
            margin-left: 16px;
        }

        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--accent);
        }

        .faq-answer {
            padding: 0 28px 20px;
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.8;
            display: none;
        }

        .faq-item.active .faq-answer {
            display: block;
        }

        @media (max-width: 640px) {
            .faq-question {
                padding: 16px 20px;
                font-size: 15px;
            }
            .faq-answer {
                padding: 0 20px 16px;
                font-size: 14px;
            }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--bg-dark) url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            position: relative;
            padding: 100px 0;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 15, 26, 0.90) 0%, rgba(26, 26, 46, 0.75) 100%);
            z-index: 1;
        }

        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .cta-section h2 {
            font-size: 38px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
        }

        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.70);
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.8;
        }

        .cta-section .btn-primary {
            font-size: 17px;
            padding: 16px 44px;
        }

        @media (max-width: 768px) {
            .cta-section {
                padding: 64px 0;
            }
            .cta-section h2 {
                font-size: 28px;
            }
            .cta-section p {
                font-size: 15px;
            }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.70);
            padding: 60px 0 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand .logo {
            color: var(--text-white);
            font-size: 20px;
            margin-bottom: 16px;
        }

        .footer-brand .logo .logo-icon {
            background: var(--accent);
        }

        .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            max-width: 320px;
            line-height: 1.8;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 18px;
            letter-spacing: 0.5px;
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            padding: 5px 0;
            transition: var(--transition);
        }

        .footer-col a:hover {
            color: var(--gold);
            padding-left: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 24px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.40);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.50);
        }

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

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

        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .site-footer {
                padding: 40px 0 20px;
            }
        }

        /* ===== 辅助 ===== */
        .text-center {
            text-align: center;
        }

        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mt-40 {
            margin-top: 40px;
        }
        .mt-48 {
            margin-top: 48px;
        }

        .gap-8 {
            gap: 8px;
        }
        .gap-12 {
            gap: 12px;
        }
        .gap-16 {
            gap: 16px;
        }

        /* ===== 滚动动画 ===== */
        .fade-up {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.6s ease, transform 0.6s ease;
        }

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

        /* ===== 响应式微调 ===== */
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 22px;
            }
            .hero p {
                font-size: 14px;
            }
            .section-header h2 {
                font-size: 24px;
            }
            .logo {
                font-size: 18px;
            }
            .logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 15px;
            }
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --clr-primary: #1a2a3a;
            --clr-primary-light: #2c3e50;
            --clr-accent: #c9a84c;
            --clr-accent-light: #e8d48b;
            --clr-accent-dark: #a88a30;
            --clr-bg: #f8f7f4;
            --clr-bg-alt: #f0ede8;
            --clr-bg-card: #ffffff;
            --clr-bg-dark: #1a2a3a;
            --clr-text: #1e1e1e;
            --clr-text-light: #5a5a5a;
            --clr-text-lighter: #8a8a8a;
            --clr-text-on-dark: #f0ede8;
            --clr-border: #e0dbd4;
            --clr-border-light: #f0ede8;
            --clr-success: #2d7d46;
            --clr-warning: #b8860b;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(26, 42, 58, 0.06);
            --shadow-md: 0 8px 24px rgba(26, 42, 58, 0.08);
            --shadow-lg: 0 20px 48px rgba(26, 42, 58, 0.12);
            --shadow-xl: 0 32px 64px rgba(26, 42, 58, 0.16);
            --space-xs: 4px;
            --space-sm: 8px;
            --space-md: 16px;
            --space-lg: 24px;
            --space-xl: 32px;
            --space-2xl: 48px;
            --space-3xl: 64px;
            --space-4xl: 80px;
            --font-sans: 'Noto Sans SC', system-ui, -apple-system, sans-serif;
            --font-serif: 'Playfair Display', Georgia, serif;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
        }

        /* ===== 基础重置 ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--clr-text);
            background: var(--clr-bg);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-md); }
        a { color: var(--clr-primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--clr-accent); }
        a:focus-visible { outline: 2px solid var(--clr-accent); outline-offset: 2px; border-radius: var(--radius-sm); }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        button { cursor: pointer; border: none; background: none; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 600; color: var(--clr-primary); }
        h1 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 700; }
        h2 { font-size: clamp(1.4rem, 2.8vw, 2rem); }
        h3 { font-size: clamp(1.1rem, 1.8vw, 1.35rem); }
        h4 { font-size: 1.05rem; }
        p { margin-bottom: 1em; color: var(--clr-text-light); }
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 var(--space-lg);
        }
        .container-narrow { max-width: 820px; margin: 0 auto; padding: 0 var(--space-lg); }
        .section { padding: var(--space-3xl) 0; }
        .section-title {
            text-align: center;
            margin-bottom: var(--space-xl);
            position: relative;
        }
        .section-title h2 {
            display: inline-block;
            position: relative;
        }
        .section-title h2::after {
            content: '';
            display: block;
            width: 60px;
            height: 3px;
            background: var(--clr-accent);
            margin: var(--space-md) auto 0;
            border-radius: 2px;
        }
        .section-title p { color: var(--clr-text-lighter); margin-top: var(--space-sm); font-size: 0.95rem; }

        /* ===== 导航 ===== */
        .site-header {
            background: var(--clr-bg-card);
            border-bottom: 1px solid var(--clr-border-light);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow-sm);
            backdrop-filter: blur(12px);
            background: rgba(255,255,255,0.92);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 var(--space-lg);
            max-width: var(--max-width);
            margin: 0 auto;
            height: 72px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--clr-primary);
            letter-spacing: 0.5px;
            text-decoration: none;
            flex-shrink: 0;
        }
        .logo:hover { color: var(--clr-primary); }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--clr-accent);
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 1.2rem;
            font-weight: 800;
            font-family: var(--font-serif);
        }
        .logo span { color: var(--clr-accent); font-weight: 300; }
        .main-nav {
            display: flex;
            align-items: center;
            gap: var(--space-lg);
        }
        .main-nav a {
            color: var(--clr-text-light);
            font-size: 0.92rem;
            font-weight: 500;
            padding: var(--space-xs) 0;
            position: relative;
            text-decoration: none;
            transition: var(--transition);
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--clr-accent);
            transition: var(--transition);
            border-radius: 1px;
        }
        .main-nav a:hover { color: var(--clr-primary); }
        .main-nav a:hover::after { width: 100%; }
        .main-nav a.active { color: var(--clr-primary); font-weight: 600; }
        .main-nav a.active::after { width: 100%; }
        .main-nav a.nav-cta {
            background: var(--clr-accent);
            color: #fff;
            padding: var(--space-sm) var(--space-lg);
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.88rem;
            display: flex;
            align-items: center;
            gap: var(--space-sm);
            transition: var(--transition);
        }
        .main-nav a.nav-cta::after { display: none; }
        .main-nav a.nav-cta:hover {
            background: var(--clr-accent-dark);
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(201,168,76,0.3);
            color: #fff;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            padding: var(--space-sm);
            background: none;
            border: none;
        }
        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2px;
            background: var(--clr-primary);
            border-radius: 2px;
            transition: var(--transition);
        }

        /* ===== 文章详情 ===== */
        .article-banner {
            position: relative;
            background: var(--clr-bg-dark);
            padding: var(--space-3xl) 0 var(--space-2xl);
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .article-banner-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-repeat: no-repeat;
            opacity: 0.25;
            z-index: 1;
        }
        .article-banner .container-narrow {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .article-banner .breadcrumb {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: var(--space-sm);
            font-size: 0.88rem;
            color: rgba(240,237,232,0.7);
            margin-bottom: var(--space-lg);
        }
        .article-banner .breadcrumb a {
            color: rgba(240,237,232,0.7);
            transition: var(--transition);
        }
        .article-banner .breadcrumb a:hover { color: var(--clr-accent-light); }
        .article-banner .breadcrumb i { font-size: 0.7rem; }
        .article-banner h1 {
            color: var(--clr-text-on-dark);
            font-size: clamp(1.6rem, 3.6vw, 2.6rem);
            font-weight: 700;
            max-width: 720px;
            margin: 0 auto var(--space-md);
            line-height: 1.35;
        }
        .article-meta {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: var(--space-lg);
            color: rgba(240,237,232,0.65);
            font-size: 0.9rem;
            flex-wrap: wrap;
        }
        .article-meta .category-badge {
            background: var(--clr-accent);
            color: #fff;
            padding: 2px 16px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
        }
        .article-meta i { margin-right: 4px; }

        .article-body-section {
            padding: var(--space-3xl) 0;
            background: var(--clr-bg);
        }
        .article-content {
            background: var(--clr-bg-card);
            border-radius: var(--radius-lg);
            padding: var(--space-2xl) var(--space-xl);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--clr-border-light);
        }
        .article-content p {
            margin-bottom: 1.2em;
            font-size: 1.02rem;
            line-height: 1.85;
            color: var(--clr-text-light);
        }
        .article-content h2, .article-content h3 {
            margin-top: 1.6em;
            margin-bottom: 0.6em;
            color: var(--clr-primary);
        }
        .article-content img {
            margin: var(--space-xl) auto;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            max-width: 100%;
        }
        .article-content ul, .article-content ol {
            margin: var(--space-md) 0 var(--space-md) var(--space-lg);
            color: var(--clr-text-light);
        }
        .article-content li {
            margin-bottom: var(--space-sm);
            list-style: disc;
        }
        .article-content blockquote {
            border-left: 4px solid var(--clr-accent);
            padding: var(--space-md) var(--space-lg);
            margin: var(--space-lg) 0;
            background: var(--clr-bg-alt);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--clr-text-light);
        }
        .article-content a { color: var(--clr-accent-dark); text-decoration: underline; }
        .article-content a:hover { color: var(--clr-accent); }

        .article-not-found {
            text-align: center;
            padding: var(--space-4xl) 0;
        }
        .article-not-found i {
            font-size: 3rem;
            color: var(--clr-text-lighter);
            margin-bottom: var(--space-lg);
        }
        .article-not-found h2 {
            color: var(--clr-text-light);
            margin-bottom: var(--space-md);
        }
        .article-not-found p {
            color: var(--clr-text-lighter);
            margin-bottom: var(--space-lg);
        }
        .btn-back {
            display: inline-flex;
            align-items: center;
            gap: var(--space-sm);
            background: var(--clr-primary);
            color: #fff;
            padding: var(--space-sm) var(--space-xl);
            border-radius: 50px;
            font-weight: 500;
            transition: var(--transition);
        }
        .btn-back:hover { background: var(--clr-accent); color: #fff; transform: translateY(-2px); }

        /* ===== 相关文章 ===== */
        .related-section {
            background: var(--clr-bg-alt);
            padding: var(--space-3xl) 0;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--space-lg);
        }
        .related-card {
            background: var(--clr-bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--clr-border-light);
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--clr-border);
        }
        .related-card .card-img {
            width: 100%;
            height: 180px;
            object-fit: cover;
            border-radius: 0;
        }
        .related-card .card-body {
            padding: var(--space-md) var(--space-lg);
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .related-card .card-body h3 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: var(--space-sm);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-body h3 a { color: var(--clr-primary); }
        .related-card .card-body h3 a:hover { color: var(--clr-accent); }
        .related-card .card-body .card-excerpt {
            font-size: 0.88rem;
            color: var(--clr-text-lighter);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: var(--space-sm);
            flex: 1;
        }
        .related-card .card-body .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 0.8rem;
            color: var(--clr-text-lighter);
            border-top: 1px solid var(--clr-border-light);
            padding-top: var(--space-sm);
            margin-top: auto;
        }
        .related-card .card-body .card-meta .tag {
            background: var(--clr-bg-alt);
            padding: 2px 12px;
            border-radius: 50px;
            font-size: 0.75rem;
        }

        /* ===== CTA 区块 ===== */
        .cta-section {
            background: var(--clr-bg-dark);
            position: relative;
            overflow: hidden;
            padding: var(--space-3xl) 0;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-3.png');
            background-size: cover;
            background-position: center;
            opacity: 0.1;
            z-index: 1;
        }
        .cta-section .container { position: relative; z-index: 2; text-align: center; }
        .cta-section h2 { color: var(--clr-text-on-dark); font-size: clamp(1.4rem, 2.8vw, 2rem); margin-bottom: var(--space-md); }
        .cta-section p { color: rgba(240,237,232,0.7); max-width: 600px; margin: 0 auto var(--space-xl); font-size: 0.95rem; }
        .cta-btn-group { display: flex; gap: var(--space-md); justify-content: center; flex-wrap: wrap; }
        .btn-primary, .btn-outline {
            display: inline-flex;
            align-items: center;
            gap: var(--space-sm);
            padding: var(--space-sm) var(--space-xl);
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.95rem;
            transition: var(--transition);
            text-decoration: none;
        }
        .btn-primary {
            background: var(--clr-accent);
            color: #fff;
        }
        .btn-primary:hover { background: var(--clr-accent-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(201,168,76,0.3); }
        .btn-outline {
            border: 2px solid rgba(240,237,232,0.3);
            color: var(--clr-text-on-dark);
        }
        .btn-outline:hover { border-color: var(--clr-accent); color: var(--clr-accent); transform: translateY(-2px); }

        /* ===== FAQ ===== */
        .faq-section { background: var(--clr-bg); padding: var(--space-3xl) 0; }
        .faq-grid { max-width: 720px; margin: 0 auto; }
        .faq-item {
            background: var(--clr-bg-card);
            border: 1px solid var(--clr-border-light);
            border-radius: var(--radius-md);
            margin-bottom: var(--space-md);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--clr-border); }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: var(--space-md) var(--space-lg);
            cursor: pointer;
            font-weight: 500;
            color: var(--clr-primary);
            font-size: 0.98rem;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question:hover { color: var(--clr-accent); }
        .faq-question i { color: var(--clr-accent); transition: var(--transition); font-size: 0.85rem; }
        .faq-question.open i { transform: rotate(180deg); }
        .faq-answer {
            padding: 0 var(--space-lg) var(--space-lg);
            color: var(--clr-text-light);
            font-size: 0.92rem;
            line-height: 1.7;
            display: none;
        }
        .faq-answer.show { display: block; }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--clr-bg-dark);
            color: var(--clr-text-on-dark);
            padding: var(--space-3xl) 0 0;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1fr;
            gap: var(--space-2xl);
            padding-bottom: var(--space-2xl);
            border-bottom: 1px solid rgba(240,237,232,0.08);
        }
        .footer-brand .logo { color: var(--clr-text-on-dark); margin-bottom: var(--space-md); font-size: 1.2rem; }
        .footer-brand .logo .logo-icon { width: 36px; height: 36px; font-size: 1rem; }
        .footer-brand p { color: rgba(240,237,232,0.55); font-size: 0.88rem; line-height: 1.7; max-width: 360px; }
        .footer-col h4 { color: var(--clr-text-on-dark); font-size: 0.95rem; font-weight: 600; margin-bottom: var(--space-md); }
        .footer-col a {
            display: block;
            color: rgba(240,237,232,0.55);
            font-size: 0.88rem;
            padding: 4px 0;
            transition: var(--transition);
            text-decoration: none;
        }
        .footer-col a:hover { color: var(--clr-accent-light); padding-left: 4px; }
        .footer-col a i { width: 20px; margin-right: 4px; }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: var(--space-lg) 0;
            font-size: 0.82rem;
            color: rgba(240,237,232,0.35);
            flex-wrap: wrap;
            gap: var(--space-md);
        }
        .footer-bottom a { color: rgba(240,237,232,0.35); text-decoration: none; }
        .footer-bottom a:hover { color: var(--clr-accent-light); }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-xl); }
        }
        @media (max-width: 768px) {
            .header-inner { height: 64px; padding: 0 var(--space-md); }
            .main-nav { display: none; }
            .main-nav.open {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--clr-bg-card);
                padding: var(--space-lg);
                border-bottom: 1px solid var(--clr-border);
                box-shadow: var(--shadow-lg);
                gap: var(--space-md);
                z-index: 99;
            }
            .main-nav a { padding: var(--space-sm) 0; font-size: 1rem; }
            .main-nav a.nav-cta { justify-content: center; }
            .nav-toggle { display: flex; }
            .related-grid { grid-template-columns: 1fr 1fr; }
            .article-content { padding: var(--space-lg) var(--space-md); }
            .article-banner { min-height: 240px; padding: var(--space-2xl) 0 var(--space-xl); }
            .article-meta { gap: var(--space-md); font-size: 0.82rem; }
            .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-lg); }
            .footer-bottom { flex-direction: column; text-align: center; }
            .section { padding: var(--space-2xl) 0; }
        }
        @media (max-width: 520px) {
            .header-inner { height: 56px; }
            .main-nav.open { top: 56px; }
            .logo { font-size: 1.1rem; }
            .logo-icon { width: 32px; height: 32px; font-size: 0.9rem; }
            .related-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: var(--space-lg); }
            .cta-btn-group { flex-direction: column; align-items: center; }
            .btn-primary, .btn-outline { width: 100%; justify-content: center; }
            .container { padding: 0 var(--space-md); }
            .article-content { padding: var(--space-md); }
            .article-banner h1 { font-size: 1.3rem; }
            .article-meta { flex-direction: column; gap: var(--space-sm); }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0f0f1a;
            --primary-light: #1a1a2e;
            --accent: #c9a84c;
            --accent-hover: #dbb956;
            --accent-dark: #b89638;
            --bg: #ffffff;
            --bg-warm: #f8f7f4;
            --bg-card: #ffffff;
            --text: #1a1a2e;
            --text-soft: #4a4a5e;
            --text-muted: #8a8a9e;
            --border: #e5e7eb;
            --border-light: #f0f0f2;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
            --shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.08);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
            --container: 1200px;
            --nav-height: 76px;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: 1rem;
            border: none;
            outline: none;
            background: none;
        }
        button {
            cursor: pointer;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.3;
            font-weight: 600;
            color: var(--text);
        }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            height: var(--nav-height);
            transition: var(--transition);
        }
        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
        }
        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--accent);
            color: var(--primary);
            border-radius: 8px;
            font-size: 1.2rem;
            font-weight: 800;
        }
        .logo span {
            color: var(--accent);
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .main-nav a {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-soft);
            padding: 6px 0;
            position: relative;
            letter-spacing: 0.3px;
        }
        .main-nav a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 2px;
            background: var(--accent);
            transform: scaleX(0);
            transition: transform 0.3s ease;
        }
        .main-nav a:hover {
            color: var(--primary);
        }
        .main-nav a:hover::after {
            transform: scaleX(1);
        }
        .main-nav a.active {
            color: var(--primary);
        }
        .main-nav a.active::after {
            transform: scaleX(1);
        }
        .main-nav a.nav-cta {
            padding: 8px 20px;
            background: var(--accent);
            color: var(--primary);
            border-radius: 50px;
            font-weight: 600;
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }
        .main-nav a.nav-cta::after {
            display: none;
        }
        .main-nav a.nav-cta:hover {
            background: var(--accent-hover);
            transform: translateY(-1px);
            box-shadow: 0 4px 16px rgba(201, 168, 76, 0.3);
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            background: none;
            border: none;
        }
        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
            transition: var(--transition);
        }

        /* ===== Hero ===== */
        .hero {
            padding: calc(var(--nav-height) + 40px) 0 80px;
            background: var(--primary);
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
            min-height: 480px;
            display: flex;
            align-items: center;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 15, 26, 0.85) 30%, rgba(15, 15, 26, 0.4) 100%);
            pointer-events: none;
        }
        .hero .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            background: rgba(201, 168, 76, 0.15);
            border: 1px solid rgba(201, 168, 76, 0.3);
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--accent);
            margin-bottom: 24px;
            letter-spacing: 1px;
        }
        .hero h1 {
            font-size: 3.4rem;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 20px;
            letter-spacing: 1px;
        }
        .hero h1 span {
            color: var(--accent);
        }
        .hero p {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 720px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 36px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--primary);
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(201, 168, 76, 0.35);
        }
        .btn-outline {
            background: transparent;
            color: #ffffff;
            border: 2px solid rgba(255, 255, 255, 0.3);
        }
        .btn-outline:hover {
            border-color: var(--accent);
            color: var(--accent);
            transform: translateY(-2px);
            background: rgba(201, 168, 76, 0.08);
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 80px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 52px;
        }
        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--primary);
        }
        .section-header p {
            font-size: 1.05rem;
            color: var(--text-soft);
            max-width: 600px;
            margin: 0 auto;
        }
        .section-divider {
            width: 48px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
            margin: 16px auto 20px;
        }
        .bg-warm {
            background: var(--bg-warm);
        }
        .bg-dark {
            background: var(--primary);
            color: #ffffff;
        }
        .bg-dark .section-header h2 {
            color: #ffffff;
        }
        .bg-dark .section-header p {
            color: rgba(255, 255, 255, 0.7);
        }
        .bg-dark .section-divider {
            background: var(--accent);
        }

        /* ===== 简介板块 ===== */
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }
        .intro-content h3 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--primary);
        }
        .intro-content p {
            color: var(--text-soft);
            margin-bottom: 16px;
            font-size: 1.05rem;
            line-height: 1.8;
        }
        .intro-content .tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }
        .tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 6px 14px;
            background: var(--bg-warm);
            border: 1px solid var(--border);
            border-radius: 50px;
            font-size: 0.85rem;
            color: var(--text-soft);
            transition: var(--transition);
        }
        .tag:hover {
            border-color: var(--accent);
            color: var(--primary);
            background: rgba(201, 168, 76, 0.06);
        }
        .tag i {
            color: var(--accent);
            font-size: 0.75rem;
        }
        .intro-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            background: var(--bg-warm);
            aspect-ratio: 4/3;
            object-fit: cover;
        }

        /* ===== 卡片网格 ===== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-4px);
            border-color: var(--border);
        }
        .card-image {
            aspect-ratio: 16/10;
            overflow: hidden;
            background: var(--bg-warm);
            position: relative;
        }
        .card-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .card:hover .card-image img {
            transform: scale(1.05);
        }
        .card-image .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 12px;
            background: var(--accent);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: 50px;
            letter-spacing: 0.5px;
        }
        .card-body {
            padding: 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .card-body h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--primary);
        }
        .card-body p {
            font-size: 0.95rem;
            color: var(--text-soft);
            line-height: 1.7;
            flex: 1;
        }
        .card-footer {
            padding: 16px 24px;
            border-top: 1px solid var(--border-light);
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .card-footer .meta {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .card-footer .link {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--accent);
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .card-footer .link:hover {
            gap: 8px;
        }

        /* ===== 赛事列表 ===== */
        .event-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .event-item {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 18px 24px;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            cursor: pointer;
        }
        .event-item:hover {
            border-color: var(--accent);
            box-shadow: var(--shadow-sm);
            transform: translateX(4px);
        }
        .event-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--bg-warm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            color: var(--accent);
            flex-shrink: 0;
        }
        .event-info {
            flex: 1;
        }
        .event-info h4 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 2px;
        }
        .event-info span {
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .event-status {
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 500;
            flex-shrink: 0;
        }
        .event-status.live {
            background: rgba(220, 38, 38, 0.08);
            color: #dc2626;
            border: 1px solid rgba(220, 38, 38, 0.15);
        }
        .event-status.upcoming {
            background: rgba(201, 168, 76, 0.1);
            color: var(--accent-dark);
            border: 1px solid rgba(201, 168, 76, 0.2);
        }
        .event-status.finished {
            background: var(--bg-warm);
            color: var(--text-muted);
            border: 1px solid var(--border);
        }

        /* ===== 步骤流程 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .step-card {
            text-align: center;
            padding: 32px 20px;
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            position: relative;
        }
        .step-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-4px);
        }
        .step-number {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary);
            font-size: 1.3rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            position: relative;
        }
        .step-number::after {
            content: '';
            position: absolute;
            top: 50%;
            left: calc(100% + 12px);
            width: 24px;
            height: 2px;
            background: var(--border);
        }
        .steps-grid .step-card:last-child .step-number::after {
            display: none;
        }
        .step-card h4 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 0.9rem;
            color: var(--text-soft);
            line-height: 1.7;
        }

        /* ===== 统计数据 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            text-align: center;
            padding: 36px 20px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: var(--radius);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: var(--transition);
        }
        .stat-card:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(201, 168, 76, 0.2);
        }
        .stat-number {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--accent);
            margin-bottom: 6px;
            line-height: 1.2;
        }
        .stat-label {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.7);
            font-weight: 400;
        }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item.active {
            border-color: var(--accent);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 24px;
            cursor: pointer;
            font-weight: 500;
            font-size: 1.05rem;
            color: var(--text);
            gap: 12px;
            transition: var(--transition);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover {
            color: var(--accent-dark);
        }
        .faq-question i {
            font-size: 0.85rem;
            color: var(--text-muted);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
            color: var(--text-soft);
            font-size: 0.95rem;
            line-height: 1.8;
        }
        .faq-item.active .faq-answer {
            max-height: 400px;
            padding: 0 24px 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
            background: var(--primary);
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            background-blend-mode: overlay;
            position: relative;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 15, 26, 0.88) 40%, rgba(15, 15, 26, 0.5) 100%);
            pointer-events: none;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2.4rem;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 12px;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 600px;
            margin: 0 auto 32px;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 30px;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo {
            color: #ffffff;
            margin-bottom: 16px;
        }
        .footer-brand .logo span {
            color: var(--accent);
        }
        .footer-brand p {
            font-size: 0.92rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.55);
            max-width: 360px;
        }
        .footer-col h4 {
            color: #ffffff;
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            padding: 6px 0;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            transition: var(--transition);
        }
        .footer-col a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-col a i {
            margin-right: 6px;
            width: 18px;
            text-align: center;
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .intro-grid {
                gap: 40px;
            }
            .card-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .site-header .container {
                padding: 0 16px;
            }
            .main-nav {
                display: none;
                position: absolute;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(16px);
                flex-direction: column;
                padding: 20px 24px;
                gap: 16px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow);
            }
            .main-nav.open {
                display: flex;
            }
            .main-nav a::after {
                display: none;
            }
            .main-nav a.active {
                color: var(--accent-dark);
            }
            .main-nav a.nav-cta {
                align-self: flex-start;
            }
            .nav-toggle {
                display: flex;
            }
            .hero {
                min-height: 400px;
                padding: calc(var(--nav-height) + 24px) 0 48px;
            }
            .hero h1 {
                font-size: 2.2rem;
            }
            .hero p {
                font-size: 1rem;
            }
            .section {
                padding: 48px 0;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
            .intro-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .intro-content h3 {
                font-size: 1.4rem;
            }
            .card-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .step-number::after {
                display: none;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .event-item {
                flex-wrap: wrap;
                gap: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero h1 {
                font-size: 1.8rem;
            }
            .hero p {
                font-size: 0.92rem;
            }
            .hero-actions {
                flex-direction: column;
                align-items: center;
            }
            .btn {
                width: 100%;
                justify-content: center;
                padding: 12px 24px;
                font-size: 0.95rem;
            }
            .card-body {
                padding: 18px;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-card {
                padding: 24px 12px;
            }
            .stat-number {
                font-size: 1.7rem;
            }
            .faq-question {
                padding: 16px 18px;
                font-size: 0.95rem;
            }
            .faq-answer {
                padding: 0 18px;
                font-size: 0.9rem;
            }
            .faq-item.active .faq-answer {
                padding: 0 18px 16px;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
        }