/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0f2b4b;
            --primary-light: #1a3f6a;
            --accent: #d4a84b;
            --accent-light: #e8c06a;
            --accent-dark: #b88e2e;
            --blue-bright: #2d8cf0;
            --bg-light: #f5f7fa;
            --bg-white: #ffffff;
            --bg-dark: #0a1a2e;
            --text-dark: #1a1a2e;
            --text-body: #3d4a5c;
            --text-muted: #7a879a;
            --border-light: #e6eaf0;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(15, 43, 75, 0.06);
            --shadow-md: 0 8px 30px rgba(15, 43, 75, 0.1);
            --shadow-lg: 0 20px 60px rgba(15, 43, 75, 0.15);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
            --footer-bg: #0a1a2e;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.6;
            color: var(--text-body);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--header-height);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        ul,
        ol {
            list-style: none;
        }

        /* ===== 容器 ===== */
        .container-custom {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section-pad {
            padding: 80px 0;
        }
        .section-pad-sm {
            padding: 48px 0;
        }

        /* ===== Foundation 覆盖 ===== */
        .grid-container {
            max-width: var(--max-width);
            padding-left: 24px;
            padding-right: 24px;
        }
        .grid-x {
            margin-left: -12px;
            margin-right: -12px;
        }
        .cell {
            padding: 12px;
        }

        /* ===== 头部导航 (桌面) ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            z-index: 1000;
            transition: background var(--transition);
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
        }
        .site-header .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }
        .site-logo .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 18px;
            font-weight: 800;
        }
        .site-logo .logo-text {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .desktop-nav a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            color: var(--text-body);
            font-weight: 500;
            font-size: 15px;
            transition: all var(--transition);
            position: relative;
        }
        .desktop-nav a:hover {
            color: var(--primary);
            background: rgba(15, 43, 75, 0.06);
        }
        .desktop-nav a.active {
            color: var(--primary);
            background: rgba(15, 43, 75, 0.08);
            font-weight: 600;
        }
        .desktop-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 4px;
        }
        .nav-cta-btn {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary) !important;
            padding: 8px 22px !important;
            border-radius: var(--radius-sm) !important;
            font-weight: 600 !important;
            box-shadow: 0 4px 12px rgba(212, 168, 75, 0.3);
            margin-left: 8px;
        }
        .nav-cta-btn:hover {
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(212, 168, 75, 0.4);
            background: linear-gradient(135deg, var(--accent-light), var(--accent));
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 26px;
            color: var(--primary);
            cursor: pointer;
            padding: 4px;
        }

        /* ===== 移动端底部 Tab 导航 ===== */
        .bottom-tab-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            height: 64px;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-top: 1px solid var(--border-light);
            z-index: 999;
            justify-content: space-around;
            align-items: center;
            padding: 0 8px;
            box-shadow: 0 -2px 12px rgba(0, 0, 0, 0.06);
        }
        .bottom-tab-nav .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 2px;
            padding: 6px 12px;
            border-radius: var(--radius-sm);
            color: var(--text-muted);
            font-size: 11px;
            font-weight: 500;
            transition: all var(--transition);
            min-width: 60px;
        }
        .bottom-tab-nav .tab-item i {
            font-size: 20px;
            transition: all var(--transition);
        }
        .bottom-tab-nav .tab-item span {
            line-height: 1.2;
        }
        .bottom-tab-nav .tab-item:hover {
            color: var(--primary);
            background: rgba(15, 43, 75, 0.05);
        }
        .bottom-tab-nav .tab-item.active {
            color: var(--primary);
            font-weight: 600;
        }
        .bottom-tab-nav .tab-item.active i {
            color: var(--accent);
        }
        .bottom-tab-nav .tab-item.tab-cta {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary);
            border-radius: 40px;
            padding: 6px 20px;
            font-weight: 600;
            box-shadow: 0 4px 16px rgba(212, 168, 75, 0.3);
        }
        .bottom-tab-nav .tab-item.tab-cta i {
            color: var(--primary);
        }

        /* ===== Hero 首屏 ===== */
        .hero-section {
            position: relative;
            min-height: 86vh;
            display: flex;
            align-items: center;
            background: var(--bg-dark);
            overflow: hidden;
        }
        .hero-section .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            opacity: 0.35;
            transform: scale(1.04);
            filter: saturate(1.1);
        }
        .hero-section .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(10, 26, 46, 0.88) 0%, rgba(15, 43, 75, 0.72) 50%, rgba(10, 26, 46, 0.9) 100%);
            z-index: 1;
        }
        .hero-section .hero-content {
            position: relative;
            z-index: 2;
            width: 100%;
            padding: 60px 24px;
        }
        .hero-section .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(212, 168, 75, 0.15);
            border: 1px solid rgba(212, 168, 75, 0.25);
            color: var(--accent-light);
            padding: 6px 16px;
            border-radius: 40px;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 24px;
            letter-spacing: 0.3px;
        }
        .hero-section .hero-badge i {
            font-size: 14px;
        }
        .hero-section h1 {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.2;
            color: #ffffff;
            margin-bottom: 20px;
            max-width: 720px;
            letter-spacing: -0.5px;
        }
        .hero-section h1 .highlight {
            color: var(--accent-light);
        }
        .hero-section .hero-sub {
            font-size: 20px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 580px;
            line-height: 1.7;
            margin-bottom: 36px;
        }
        .hero-section .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }
        .hero-section .btn-primary-custom {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary);
            padding: 14px 36px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 17px;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            box-shadow: 0 8px 30px rgba(212, 168, 75, 0.35);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .hero-section .btn-primary-custom:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(212, 168, 75, 0.45);
            background: linear-gradient(135deg, var(--accent-light), var(--accent));
        }
        .hero-section .btn-secondary-custom {
            background: rgba(255, 255, 255, 0.08);
            color: #ffffff;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 17px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            cursor: pointer;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            backdrop-filter: blur(4px);
        }
        .hero-section .btn-secondary-custom:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: rgba(255, 255, 255, 0.25);
            transform: translateY(-2px);
        }
        .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            flex-wrap: wrap;
        }
        .hero-stats .stat-item {
            text-align: left;
        }
        .hero-stats .stat-item .num {
            font-size: 32px;
            font-weight: 800;
            color: var(--accent-light);
            line-height: 1.2;
        }
        .hero-stats .stat-item .label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 2px;
        }

        /* ===== 板块标题 ===== */
        .section-title {
            text-align: center;
            margin-bottom: 52px;
        }
        .section-title h2 {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-title p {
            font-size: 18px;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .section-title .title-tag {
            display: inline-block;
            background: rgba(212, 168, 75, 0.12);
            color: var(--accent-dark);
            padding: 4px 14px;
            border-radius: 40px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        /* ===== 特色卡片 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 28px;
        }
        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 36px 28px 32px;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            border: 1px solid var(--border-light);
            text-align: center;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(212, 168, 75, 0.2);
        }
        .feature-card .icon-box {
            width: 64px;
            height: 64px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 28px;
            color: #ffffff;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
        }
        .feature-card .icon-box.gold {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary);
        }
        .feature-card .icon-box.blue {
            background: linear-gradient(135deg, var(--blue-bright), #5ba3f0);
        }
        .feature-card .icon-box.teal {
            background: linear-gradient(135deg, #1a7a6b, #2ab5a0);
        }
        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .feature-card p {
            font-size: 15px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        /* ===== 流程步骤 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
            gap: 32px;
            counter-reset: step-counter;
        }
        .step-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 36px 24px 32px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            text-align: center;
            transition: all var(--transition);
            position: relative;
        }
        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .step-card .step-number {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary);
            font-weight: 800;
            font-size: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            box-shadow: 0 4px 16px rgba(212, 168, 75, 0.25);
        }
        .step-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .step-card p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }
        .step-card .step-arrow {
            position: absolute;
            right: -20px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 22px;
            color: var(--accent);
            opacity: 0.5;
        }
        .steps-grid .step-card:last-child .step-arrow {
            display: none;
        }

        /* ===== 资讯/内容列表 ===== */
        .content-list-section {
            background: var(--bg-white);
        }
        .cms-list-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .cms-card {
            background: var(--bg-light);
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .cms-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: rgba(212, 168, 75, 0.15);
        }
        .cms-card .cms-img {
            height: 180px;
            background: var(--border-light);
            overflow: hidden;
        }
        .cms-card .cms-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .cms-card:hover .cms-img img {
            transform: scale(1.05);
        }
        .cms-card .cms-body {
            padding: 20px 22px 24px;
        }
        .cms-card .cms-tag {
            display: inline-block;
            background: rgba(15, 43, 75, 0.08);
            color: var(--primary-light);
            padding: 2px 12px;
            border-radius: 40px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .cms-card .cms-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.4;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .cms-card .cms-title a {
            color: inherit;
        }
        .cms-card .cms-title a:hover {
            color: var(--accent-dark);
        }
        .cms-card .cms-excerpt {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 12px;
        }
        .cms-card .cms-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .cms-card .cms-meta i {
            margin-right: 4px;
        }
        .cms-empty {
            text-align: center;
            padding: 48px 24px;
            color: var(--text-muted);
            font-size: 16px;
            background: var(--bg-light);
            border-radius: var(--radius);
        }

        /* ===== 优势/数据 ===== */
        .advantage-section {
            background: var(--bg-dark);
            position: relative;
            overflow: hidden;
        }
        .advantage-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            opacity: 0.08;
        }
        .advantage-section .advantage-content {
            position: relative;
            z-index: 1;
        }
        .advantage-section .section-title h2 {
            color: #ffffff;
        }
        .advantage-section .section-title p {
            color: rgba(255, 255, 255, 0.7);
        }
        .advantage-section .section-title .title-tag {
            background: rgba(212, 168, 75, 0.15);
            color: var(--accent-light);
        }
        .advantage-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 24px;
        }
        .advantage-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius);
            padding: 32px 20px;
            text-align: center;
            transition: all var(--transition);
            backdrop-filter: blur(4px);
        }
        .advantage-card:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(212, 168, 75, 0.2);
            transform: translateY(-4px);
        }
        .advantage-card .adv-icon {
            font-size: 36px;
            color: var(--accent-light);
            margin-bottom: 16px;
        }
        .advantage-card .adv-num {
            font-size: 40px;
            font-weight: 800;
            color: #ffffff;
            line-height: 1.2;
            margin-bottom: 4px;
        }
        .advantage-card .adv-label {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
            font-weight: 500;
        }

        /* ===== 图文版块 ===== */
        .media-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }
        .media-grid .media-image {
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        .media-grid .media-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 320px;
        }
        .media-grid .media-text h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 16px;
            line-height: 1.25;
        }
        .media-grid .media-text p {
            font-size: 16px;
            color: var(--text-muted);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .media-grid .media-text .feature-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .media-grid .media-text .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            font-size: 15px;
            color: var(--text-body);
        }
        .media-grid .media-text .feature-list li i {
            color: var(--accent);
            font-size: 18px;
            margin-top: 2px;
            flex-shrink: 0;
        }
        .media-reverse .media-image {
            order: 2;
        }
        .media-reverse .media-text {
            order: 1;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-white);
        }
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            border: 1px solid var(--border-light);
            border-radius: var(--radius-sm);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(212, 168, 75, 0.2);
        }
        .faq-item .faq-q {
            padding: 18px 24px;
            background: var(--bg-light);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 600;
            color: var(--primary);
            font-size: 16px;
            transition: background var(--transition);
            user-select: none;
        }
        .faq-item .faq-q:hover {
            background: rgba(212, 168, 75, 0.06);
        }
        .faq-item .faq-q i {
            color: var(--accent);
            transition: transform var(--transition);
            font-size: 18px;
        }
        .faq-item .faq-q.active i {
            transform: rotate(180deg);
        }
        .faq-item .faq-a {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: all 0.4s ease;
            color: var(--text-muted);
            line-height: 1.7;
            font-size: 15px;
        }
        .faq-item .faq-a.open {
            padding: 18px 24px 22px;
            max-height: 400px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary), var(--bg-dark));
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.webp') center center / cover no-repeat;
            opacity: 0.06;
        }
        .cta-section .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 20px 0;
        }
        .cta-section h2 {
            font-size: 38px;
            font-weight: 800;
            color: #ffffff;
            margin-bottom: 16px;
        }
        .cta-section p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        .cta-section .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .cta-section .btn-cta-primary {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: var(--primary);
            padding: 16px 44px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 18px;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            box-shadow: 0 8px 30px rgba(212, 168, 75, 0.3);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .cta-section .btn-cta-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(212, 168, 75, 0.4);
            background: linear-gradient(135deg, var(--accent-light), var(--accent));
        }
        .cta-section .btn-cta-secondary {
            background: rgba(255, 255, 255, 0.08);
            color: #ffffff;
            padding: 16px 40px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 18px;
            border: 1px solid rgba(255, 255, 255, 0.15);
            cursor: pointer;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .cta-section .btn-cta-secondary:hover {
            background: rgba(255, 255, 255, 0.14);
            border-color: rgba(255, 255, 255, 0.25);
            transform: translateY(-2px);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--footer-bg);
            color: rgba(255, 255, 255, 0.7);
            padding: 56px 0 24px;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.2fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }
        .site-footer .footer-brand .logo-text {
            font-size: 22px;
            font-weight: 700;
            color: #ffffff;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .site-footer .footer-brand .logo-text .logo-icon {
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-weight: 800;
            font-size: 16px;
        }
        .site-footer .footer-brand p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            line-height: 1.8;
            max-width: 320px;
        }
        .site-footer h4 {
            color: #ffffff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .site-footer ul li {
            margin-bottom: 10px;
        }
        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            transition: color var(--transition);
        }
        .site-footer ul li a:hover {
            color: var(--accent-light);
        }
        .site-footer .footer-bottom {
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--accent-light);
        }
        .site-footer .social-links {
            display: flex;
            gap: 12px;
        }
        .site-footer .social-links a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            border: 1px solid rgba(255, 255, 255, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.5);
            transition: all var(--transition);
            font-size: 16px;
        }
        .site-footer .social-links a:hover {
            border-color: var(--accent);
            color: var(--accent-light);
            background: rgba(212, 168, 75, 0.1);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .hero-section h1 {
                font-size: 40px;
            }
            .media-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .media-reverse .media-image {
                order: 1;
            }
            .media-reverse .media-text {
                order: 2;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }
            .site-header .header-inner {
                padding: 0 16px;
            }
            .desktop-nav {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .mobile-nav-open .desktop-nav {
                display: flex;
                flex-direction: column;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                padding: 16px 24px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-md);
                gap: 4px;
            }
            .mobile-nav-open .desktop-nav a {
                padding: 12px 16px;
                width: 100%;
            }
            .mobile-nav-open .desktop-nav a.active::after {
                display: none;
            }
            .mobile-nav-open .desktop-nav a.active {
                background: rgba(15, 43, 75, 0.06);
            }
            .mobile-nav-open .desktop-nav .nav-cta-btn {
                margin-left: 0;
                text-align: center;
                margin-top: 8px;
            }
            .bottom-tab-nav {
                display: flex;
            }
            body {
                padding-bottom: 64px;
            }
            .hero-section {
                min-height: 70vh;
            }
            .hero-section h1 {
                font-size: 32px;
            }
            .hero-section .hero-sub {
                font-size: 17px;
            }
            .hero-stats {
                gap: 24px;
                margin-top: 32px;
                padding-top: 24px;
            }
            .hero-stats .stat-item .num {
                font-size: 26px;
            }
            .section-title h2 {
                font-size: 28px;
            }
            .section-title p {
                font-size: 16px;
            }
            .section-pad {
                padding: 56px 0;
            }
            .media-grid .media-text h2 {
                font-size: 26px;
            }
            .features-grid {
                grid-template-columns: 1fr 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
            }
            .steps-grid .step-card .step-arrow {
                display: none;
            }
            .advantage-grid {
                grid-template-columns: 1fr 1fr;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .cta-section h2 {
                font-size: 28px;
            }
            .cms-list-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 520px) {
            .site-logo {
                font-size: 18px;
            }
            .site-logo .logo-icon {
                width: 30px;
                height: 30px;
                font-size: 14px;
            }
            .hero-section h1 {
                font-size: 26px;
            }
            .hero-section .hero-sub {
                font-size: 15px;
            }
            .hero-section .btn-primary-custom,
            .hero-section .btn-secondary-custom {
                padding: 12px 24px;
                font-size: 15px;
                width: 100%;
                justify-content: center;
            }
            .hero-section .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-stats {
                gap: 16px;
                justify-content: space-between;
            }
            .hero-stats .stat-item .num {
                font-size: 22px;
            }
            .features-grid {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .advantage-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
            .advantage-card {
                padding: 24px 16px;
            }
            .advantage-card .adv-num {
                font-size: 30px;
            }
            .cms-list-grid {
                grid-template-columns: 1fr;
            }
            .section-title h2 {
                font-size: 24px;
            }
            .section-pad {
                padding: 40px 0;
            }
            .media-grid .media-text h2 {
                font-size: 22px;
            }
            .faq-item .faq-q {
                padding: 14px 16px;
                font-size: 14px;
            }
            .faq-item .faq-a.open {
                padding: 14px 16px 18px;
            }
            .cta-section h2 {
                font-size: 24px;
            }
            .cta-section .btn-cta-primary,
            .cta-section .btn-cta-secondary {
                padding: 14px 28px;
                font-size: 16px;
                width: 100%;
                justify-content: center;
            }
            .cta-section .cta-actions {
                flex-direction: column;
            }
            .site-footer .footer-grid {
                gap: 20px;
            }
            .site-footer {
                padding: 36px 0 20px;
            }
            .bottom-tab-nav {
                height: 56px;
            }
            .bottom-tab-nav .tab-item {
                font-size: 10px;
                padding: 4px 8px;
                min-width: 48px;
            }
            .bottom-tab-nav .tab-item i {
                font-size: 18px;
            }
            body {
                padding-bottom: 56px;
            }
        }

        /* ===== 辅助 ===== */
        .text-center {
            text-align: center;
        }
        .mt-12 {
            margin-top: 12px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-36 {
            margin-top: 36px;
        }
        .gap-8 {
            gap: 8px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }

/* roulang page: article */
:root {
            --primary: #e63946;
            --primary-dark: #c62828;
            --primary-light: #ff6b6b;
            --secondary: #1a1a2e;
            --secondary-light: #16213e;
            --accent: #f0c27f;
            --accent-light: #ffecd2;
            --bg-body: #0f0f1a;
            --bg-card: #1a1a2e;
            --bg-section: #12122a;
            --bg-dark: #0a0a15;
            --text-primary: #f5f5f7;
            --text-secondary: #c0c0cc;
            --text-muted: #8888aa;
            --border-color: rgba(230, 57, 70, 0.2);
            --border-light: rgba(255, 255, 255, 0.06);
            --radius: 14px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
            --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.3);
            --shadow-hover: 0 20px 50px rgba(230, 57, 70, 0.15);
            --transition: 0.35s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', sans-serif;
            --font-heading: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
            --footer-bg: #0a0a15;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-body);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
            text-decoration: none;
        }
        a:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        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;
        }
        button:focus-visible,
        input:focus-visible,
        textarea:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
        }

        ul,
        ol {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .grid-container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
        }

        @media (max-width: 640px) {
            .grid-container {
                padding: 0 16px;
            }
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(15, 15, 26, 0.92);
            backdrop-filter: blur(20px) saturate(1.4);
            -webkit-backdrop-filter: blur(20px) saturate(1.4);
            border-bottom: 1px solid var(--border-light);
            height: var(--header-height);
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(10, 10, 21, 0.96);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }

        .header-inner {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 20px;
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            flex-shrink: 0;
        }
        .site-logo:hover {
            opacity: 0.9;
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: 10px;
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            box-shadow: 0 4px 12px rgba(230, 57, 70, 0.35);
        }

        .logo-text {
            font-size: 20px;
            font-weight: 700;
            background: linear-gradient(135deg, #f5f5f7, #e0e0ec);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            letter-spacing: 0.5px;
        }

        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .desktop-nav a {
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-size: 15px;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }
        .desktop-nav a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%) scaleX(0);
            width: 60%;
            height: 3px;
            background: var(--primary);
            border-radius: 2px;
            transition: var(--transition);
            opacity: 0;
        }
        .desktop-nav a:hover {
            color: var(--text-primary);
            background: rgba(255, 255, 255, 0.05);
        }
        .desktop-nav a:hover::after {
            transform: translateX(-50%) scaleX(1);
            opacity: 0.6;
        }
        .desktop-nav a.active {
            color: #fff;
            background: rgba(230, 57, 70, 0.15);
        }
        .desktop-nav a.active::after {
            transform: translateX(-50%) scaleX(1);
            opacity: 1;
            background: var(--primary);
        }
        .desktop-nav .nav-cta-btn {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff !important;
            padding: 8px 20px;
            border-radius: 25px;
            font-weight: 600;
            margin-left: 8px;
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.3);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .desktop-nav .nav-cta-btn::after {
            display: none;
        }
        .desktop-nav .nav-cta-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230, 57, 70, 0.45);
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
        }

        .mobile-toggle {
            display: none;
            background: none;
            color: var(--text-primary);
            font-size: 24px;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
        }
        .mobile-toggle:hover {
            background: rgba(255, 255, 255, 0.05);
        }

        @media (max-width: 820px) {
            .desktop-nav {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: rgba(15, 15, 26, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 20px 24px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
                gap: 4px;
            }
            .desktop-nav.open {
                display: flex;
            }
            .desktop-nav a {
                padding: 12px 16px;
                width: 100%;
                border-radius: var(--radius-sm);
                font-size: 16px;
            }
            .desktop-nav a::after {
                display: none;
            }
            .desktop-nav a.active {
                background: rgba(230, 57, 70, 0.12);
                border-left: 3px solid var(--primary);
            }
            .desktop-nav .nav-cta-btn {
                margin-left: 0;
                margin-top: 8px;
                justify-content: center;
                padding: 12px 20px;
            }
            .mobile-toggle {
                display: block;
            }
        }

        @media (max-width: 480px) {
            :root {
                --header-height: 62px;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 18px;
            }
            .logo-text {
                font-size: 17px;
            }
            .site-header .header-inner {
                padding: 0 14px;
            }
        }

        .mobile-bottom-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: rgba(15, 15, 26, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--border-light);
            padding: 6px 0 env(safe-area-inset-bottom, 6px);
            justify-content: space-around;
            align-items: center;
            box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
        }
        .mobile-bottom-nav a {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            padding: 6px 12px;
            color: var(--text-muted);
            font-size: 11px;
            font-weight: 500;
            transition: var(--transition);
            border-radius: var(--radius-sm);
        }
        .mobile-bottom-nav a i {
            font-size: 20px;
            transition: var(--transition);
        }
        .mobile-bottom-nav a:hover,
        .mobile-bottom-nav a.active {
            color: var(--primary-light);
        }
        .mobile-bottom-nav a.active i {
            color: var(--primary);
        }
        .mobile-bottom-nav .nav-cta-tab {
            color: var(--primary-light);
        }
        .mobile-bottom-nav .nav-cta-tab i {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        @media (max-width: 820px) {
            .mobile-bottom-nav {
                display: flex;
            }
            body {
                padding-bottom: 68px;
            }
        }

        @media (max-width: 480px) {
            .mobile-bottom-nav a {
                font-size: 10px;
                padding: 4px 8px;
            }
            .mobile-bottom-nav a i {
                font-size: 18px;
            }
        }

        .article-page {
            padding-top: calc(var(--header-height) + 30px);
            padding-bottom: 60px;
            flex: 1;
        }

        .article-banner {
            position: relative;
            background: var(--bg-dark);
            padding: 60px 0 40px;
            margin-bottom: 40px;
            border-bottom: 1px solid var(--border-light);
        }
        .article-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }
        .article-banner .grid-container {
            position: relative;
            z-index: 1;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px 20px;
            margin-bottom: 16px;
            color: var(--text-muted);
            font-size: 14px;
        }
        .article-meta .category-badge {
            display: inline-block;
            background: rgba(230, 57, 70, 0.15);
            color: var(--primary-light);
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
        }
        .article-meta .date-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--text-muted);
        }
        .article-meta .date-badge i {
            color: var(--accent);
        }

        .article-title {
            font-family: var(--font-heading);
            font-size: 32px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .article-excerpt {
            font-size: 17px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 780px;
            padding: 16px 0 8px;
        }

        .article-body-wrapper {
            max-width: 820px;
            margin: 0 auto;
        }

        .article-body {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 40px 44px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow);
            line-height: 1.9;
            font-size: 16.5px;
            color: var(--text-secondary);
        }

        .article-body h2,
        .article-body h3,
        .article-body h4 {
            font-family: var(--font-heading);
            color: var(--text-primary);
            margin-top: 36px;
            margin-bottom: 16px;
            font-weight: 700;
            line-height: 1.4;
        }
        .article-body h2 {
            font-size: 24px;
            border-bottom: 1px solid var(--border-light);
            padding-bottom: 10px;
        }
        .article-body h3 {
            font-size: 20px;
        }
        .article-body p {
            margin-bottom: 18px;
        }
        .article-body ul,
        .article-body ol {
            margin: 12px 0 18px 24px;
            list-style: disc;
        }
        .article-body li {
            margin-bottom: 8px;
        }
        .article-body a {
            color: var(--primary-light);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-body a:hover {
            color: var(--accent);
        }
        .article-body blockquote {
            border-left: 4px solid var(--primary);
            padding: 16px 20px;
            margin: 20px 0;
            background: rgba(230, 57, 70, 0.05);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary);
            font-style: italic;
        }
        .article-body img {
            border-radius: var(--radius);
            margin: 24px auto;
            box-shadow: var(--shadow-sm);
        }
        .article-body code {
            background: rgba(255, 255, 255, 0.06);
            padding: 2px 8px;
            border-radius: 4px;
            font-size: 14px;
            color: var(--accent-light);
        }
        .article-body pre {
            background: var(--bg-dark);
            padding: 20px 24px;
            border-radius: var(--radius);
            overflow-x: auto;
            border: 1px solid var(--border-light);
            margin: 20px 0;
        }
        .article-body pre code {
            background: none;
            padding: 0;
            color: var(--text-secondary);
        }

        .article-not-found {
            text-align: center;
            padding: 60px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-light);
        }
        .article-not-found i {
            font-size: 56px;
            color: var(--text-muted);
            margin-bottom: 20px;
            display: block;
        }
        .article-not-found h2 {
            font-size: 24px;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .article-not-found p {
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .article-not-found .back-home-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            padding: 12px 32px;
            border-radius: 30px;
            font-weight: 600;
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.3);
            transition: var(--transition);
        }
        .article-not-found .back-home-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 28px rgba(230, 57, 70, 0.45);
            color: #fff;
        }

        @media (max-width: 768px) {
            .article-page {
                padding-top: calc(var(--header-height) + 20px);
                padding-bottom: 40px;
            }
            .article-banner {
                padding: 40px 0 30px;
                margin-bottom: 24px;
            }
            .article-title {
                font-size: 24px;
            }
            .article-excerpt {
                font-size: 15px;
            }
            .article-body {
                padding: 28px 20px;
                font-size: 15.5px;
                border-radius: var(--radius);
            }
            .article-body h2 {
                font-size: 20px;
            }
            .article-body h3 {
                font-size: 18px;
            }
            .article-meta {
                font-size: 13px;
                gap: 8px 14px;
            }
        }

        @media (max-width: 480px) {
            .article-title {
                font-size: 20px;
            }
            .article-excerpt {
                font-size: 14px;
            }
            .article-body {
                padding: 20px 14px;
                font-size: 14.5px;
            }
            .article-body h2 {
                font-size: 18px;
            }
            .article-body h3 {
                font-size: 16px;
            }
            .article-meta .category-badge {
                font-size: 12px;
                padding: 3px 10px;
            }
        }

        .article-nav-links {
            margin-top: 40px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .article-nav-links a {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--text-muted);
            font-size: 14px;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .article-nav-links a:hover {
            color: var(--text-primary);
            background: rgba(230, 57, 70, 0.08);
            border-color: rgba(230, 57, 70, 0.2);
        }

        .site-footer {
            background: var(--footer-bg);
            border-top: 1px solid var(--border-light);
            padding: 50px 0 20px;
            margin-top: 20px;
        }
        .site-footer .grid-container {
            max-width: var(--max-width);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 32px;
            margin-bottom: 30px;
        }
        .footer-brand .logo-text {
            font-size: 20px;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 14px;
            -webkit-text-fill-color: #f5f5f7;
            background: none;
        }
        .footer-brand .logo-text .logo-icon {
            width: 36px;
            height: 36px;
            font-size: 18px;
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 320px;
        }
        .site-footer h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.5px;
        }
        .site-footer ul li {
            margin-bottom: 8px;
        }
        .site-footer ul li a {
            font-size: 14px;
            color: var(--text-muted);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .site-footer ul li a:hover {
            color: var(--primary-light);
            padding-left: 4px;
        }
        .site-footer .social-links {
            display: flex;
            gap: 10px;
            margin-top: 6px;
        }
        .site-footer .social-links a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.04);
            color: var(--text-muted);
            font-size: 18px;
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .site-footer .social-links a:hover {
            background: rgba(230, 57, 70, 0.12);
            color: var(--primary-light);
            border-color: rgba(230, 57, 70, 0.2);
            transform: translateY(-3px);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 10px;
            padding-top: 20px;
            border-top: 1px solid var(--border-light);
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--text-muted);
        }
        .footer-bottom a:hover {
            color: var(--primary-light);
        }

        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                gap: 6px;
            }
            .site-footer {
                padding: 32px 0 16px;
            }
        }

        .scroll-top {
            position: fixed;
            bottom: 100px;
            right: 24px;
            z-index: 99;
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-size: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 6px 24px rgba(230, 57, 70, 0.35);
            cursor: pointer;
            transition: var(--transition);
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
            border: none;
        }
        .scroll-top.visible {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .scroll-top:hover {
            transform: translateY(-4px);
            box-shadow: 0 10px 32px rgba(230, 57, 70, 0.5);
        }

        @media (max-width: 820px) {
            .scroll-top {
                bottom: 82px;
                right: 16px;
                width: 40px;
                height: 40px;
                font-size: 17px;
            }
        }

        @media print {
            .site-header,
            .mobile-bottom-nav,
            .scroll-top,
            .site-footer {
                display: none !important;
            }
            .article-page {
                padding-top: 20px;
            }
            .article-body {
                box-shadow: none;
                border: 1px solid #ddd;
                background: #fff;
                color: #222;
            }
            body {
                background: #fff;
                color: #222;
            }
        }

/* roulang page: category1 */
/* ========== 设计变量 ========== */
        :root {
            --primary: #0f0f2e;
            --primary-light: #1a1a3e;
            --primary-dark: #08081a;
            --accent: #f0a500;
            --accent-light: #ffc832;
            --accent-dark: #c98800;
            --secondary: #e85d3a;
            --success: #2ecc71;
            --info: #3498db;

            --bg-body: #f4f5f9;
            --bg-card: #ffffff;
            --bg-dark: #0f0f2e;
            --bg-section: #ffffff;

            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-light: #8a8aaa;
            --text-inverse: #ffffff;
            --text-accent: #f0a500;

            --border-color: #e8e8f0;
            --border-light: #f0f0f5;

            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;

            --shadow-sm: 0 2px 8px rgba(15, 15, 46, 0.06);
            --shadow-md: 0 6px 24px rgba(15, 15, 46, 0.08);
            --shadow-lg: 0 16px 48px rgba(15, 15, 46, 0.12);
            --shadow-xl: 0 24px 64px rgba(15, 15, 46, 0.16);

            --font-sans: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --font-mono: 'SF Mono', 'Fira Code', monospace;

            --nav-height: 72px;
            --nav-height-mobile: 64px;
            --footer-bg: #0a0a1a;
            --footer-text: #b0b0c8;

            --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --transition-fast: 0.15s ease;
        }

        /* ========== Reset & Base ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-top: var(--nav-height);
        }

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

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

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

        a:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        button {
            cursor: pointer;
            border: none;
            background: none;
        }

        button:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
            border-radius: var(--radius-sm);
        }

        ul,
        ol {
            list-style: none;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            line-height: 1.25;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }

        p {
            margin-bottom: 1rem;
            color: var(--text-secondary);
        }

        /* ========== 容器 ========== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        .container-narrow {
            max-width: 860px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .container-wide {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== 导航 ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(15, 15, 46, 0.96);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            height: var(--nav-height);
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(15, 15, 46, 0.98);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
        }

        .header-inner {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: var(--text-inverse);
            font-weight: 700;
            font-size: 1.35rem;
            letter-spacing: 0.5px;
            transition: var(--transition);
        }

        .site-logo:hover {
            opacity: 0.9;
            color: var(--text-inverse);
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            border-radius: var(--radius-sm);
            color: var(--primary-dark);
            font-size: 1.2rem;
            font-weight: 800;
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 1.15rem;
            font-weight: 700;
            background: linear-gradient(90deg, #fff, #e0e0f0);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .desktop-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .desktop-nav a {
            color: rgba(255, 255, 255, 0.75);
            text-decoration: none;
            font-size: 0.92rem;
            font-weight: 500;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
            letter-spacing: 0.3px;
        }

        .desktop-nav a::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transition: var(--transition);
        }

        .desktop-nav a:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
        }

        .desktop-nav a:hover::after {
            width: 60%;
        }

        .desktop-nav a.active {
            color: var(--accent);
            background: rgba(240, 165, 0, 0.1);
        }

        .desktop-nav a.active::after {
            width: 60%;
        }

        .nav-cta-btn {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark)) !important;
            color: var(--primary-dark) !important;
            font-weight: 600 !important;
            padding: 8px 24px !important;
            border-radius: var(--radius-sm) !important;
            margin-left: 12px;
            box-shadow: 0 4px 16px rgba(240, 165, 0, 0.3);
            transition: var(--transition) !important;
        }

        .nav-cta-btn i {
            margin-right: 6px;
        }

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

        .nav-cta-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(240, 165, 0, 0.45) !important;
            background: linear-gradient(135deg, var(--accent-light), var(--accent)) !important;
            color: var(--primary-dark) !important;
        }

        .mobile-toggle {
            display: none;
            color: #fff;
            font-size: 1.4rem;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }

        .mobile-toggle:hover {
            background: rgba(255, 255, 255, 0.08);
        }

        /* 移动端底部 Tab 导航 */
        .mobile-bottom-nav {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: rgba(15, 15, 46, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 6px 0;
            padding-bottom: env(safe-area-inset-bottom, 6px);
            box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.3);
        }

        .mobile-bottom-nav .tab-inner {
            display: flex;
            justify-content: space-around;
            align-items: center;
            max-width: 600px;
            margin: 0 auto;
        }

        .mobile-bottom-nav .tab-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 2px;
            padding: 6px 12px;
            color: rgba(255, 255, 255, 0.5);
            text-decoration: none;
            font-size: 0.65rem;
            font-weight: 500;
            transition: var(--transition);
            border-radius: var(--radius-sm);
            min-width: 56px;
        }

        .mobile-bottom-nav .tab-item i {
            font-size: 1.25rem;
            transition: var(--transition);
        }

        .mobile-bottom-nav .tab-item span {
            font-size: 0.6rem;
            letter-spacing: 0.3px;
        }

        .mobile-bottom-nav .tab-item:hover {
            color: rgba(255, 255, 255, 0.8);
            background: rgba(255, 255, 255, 0.05);
        }

        .mobile-bottom-nav .tab-item.active {
            color: var(--accent);
        }

        .mobile-bottom-nav .tab-item.active i {
            transform: scale(1.05);
        }

        .mobile-bottom-nav .tab-cta {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: var(--primary-dark) !important;
            padding: 8px 20px;
            border-radius: var(--radius-md);
            font-weight: 700;
            min-width: 72px;
            box-shadow: 0 4px 16px rgba(240, 165, 0, 0.3);
        }

        .mobile-bottom-nav .tab-cta i {
            font-size: 1.1rem;
        }

        .mobile-bottom-nav .tab-cta span {
            font-size: 0.6rem;
            font-weight: 700;
        }

        .mobile-bottom-nav .tab-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(240, 165, 0, 0.45);
        }

        /* ========== Hero 区域 ========== */
        .hero-section {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary-dark);
            overflow: hidden;
            padding: 80px 0 60px;
        }

        .hero-section .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
            opacity: 0.4;
            transform: scale(1.02);
            transition: transform 0.6s ease;
        }

        .hero-section:hover .hero-bg {
            transform: scale(1.04);
        }

        .hero-section .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 15, 46, 0.92) 0%, rgba(15, 15, 46, 0.7) 50%, rgba(15, 15, 46, 0.88) 100%);
            z-index: 1;
        }

        .hero-section .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 860px;
            padding: 0 24px;
        }

        .hero-section .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(240, 165, 0, 0.15);
            border: 1px solid rgba(240, 165, 0, 0.25);
            color: var(--accent);
            padding: 6px 20px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 28px;
            backdrop-filter: blur(4px);
            letter-spacing: 0.5px;
        }

        .hero-section .hero-badge i {
            font-size: 0.75rem;
        }

        .hero-section h1 {
            font-size: clamp(2.2rem, 6vw, 4rem);
            font-weight: 900;
            color: var(--text-inverse);
            line-height: 1.15;
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }

        .hero-section h1 .highlight {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-section .hero-sub {
            font-size: clamp(1rem, 2vw, 1.2rem);
            color: rgba(255, 255, 255, 0.7);
            max-width: 640px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }

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

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 1rem;
            padding: 14px 36px;
            border-radius: var(--radius-md);
            box-shadow: 0 8px 32px rgba(240, 165, 0, 0.35);
            transition: var(--transition);
            border: none;
            cursor: pointer;
            text-decoration: none;
            letter-spacing: 0.3px;
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(240, 165, 0, 0.5);
            background: linear-gradient(135deg, var(--accent-light), var(--accent));
            color: var(--primary-dark);
        }

        .btn-primary:active {
            transform: translateY(-1px);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: rgba(255, 255, 255, 0.08);
            color: var(--text-inverse);
            font-weight: 600;
            font-size: 1rem;
            padding: 14px 32px;
            border-radius: var(--radius-md);
            border: 1px solid rgba(255, 255, 255, 0.15);
            transition: var(--transition);
            cursor: pointer;
            text-decoration: none;
            backdrop-filter: blur(4px);
        }

        .btn-secondary:hover {
            background: rgba(255, 255, 255, 0.15);
            border-color: rgba(255, 255, 255, 0.25);
            color: #fff;
            transform: translateY(-2px);
        }

        .hero-section .hero-stats {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 40px;
            margin-top: 50px;
            padding-top: 36px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .hero-section .hero-stats .stat-item {
            text-align: center;
            color: var(--text-inverse);
        }

        .hero-section .hero-stats .stat-number {
            font-size: 1.8rem;
            font-weight: 800;
            color: var(--accent);
            line-height: 1.2;
        }

        .hero-section .hero-stats .stat-label {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.5);
            font-weight: 400;
            margin-top: 2px;
        }

        /* ========== 通用板块 ========== */
        .section {
            padding: 80px 0;
            position: relative;
        }

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

        .section-dark h2,
        .section-dark h3,
        .section-dark h4 {
            color: var(--text-inverse);
        }

        .section-dark p {
            color: rgba(255, 255, 255, 0.7);
        }

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

        .section-white {
            background: #ffffff;
        }

        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 56px;
        }

        .section-header h2 {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -0.3px;
        }

        .section-header h2 .highlight {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .section-header p {
            font-size: 1.05rem;
            color: var(--text-light);
            line-height: 1.8;
            max-width: 560px;
            margin: 0 auto;
        }

        .section-header.light h2 {
            color: var(--text-inverse);
        }

        .section-header.light p {
            color: rgba(255, 255, 255, 0.6);
        }

        /* ========== 卡片 ========== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            height: 100%;
        }

        .card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(240, 165, 0, 0.2);
        }

        .card .card-icon {
            width: 56px;
            height: 56px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, rgba(240, 165, 0, 0.12), rgba(240, 165, 0, 0.05));
            border-radius: var(--radius-md);
            margin-bottom: 18px;
            font-size: 1.6rem;
            color: var(--accent);
            transition: var(--transition);
        }

        .card:hover .card-icon {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: var(--primary-dark);
            transform: scale(1.05) rotate(-3deg);
        }

        .card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .card p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        .card .card-tag {
            display: inline-block;
            padding: 2px 12px;
            background: rgba(240, 165, 0, 0.1);
            color: var(--accent-dark);
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: 50px;
            margin-bottom: 12px;
        }

        .card-dark {
            background: rgba(255, 255, 255, 0.05);
            border-color: rgba(255, 255, 255, 0.08);
            color: var(--text-inverse);
        }

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

        .card-dark p {
            color: rgba(255, 255, 255, 0.6);
        }

        .card-dark .card-icon {
            background: rgba(240, 165, 0, 0.15);
        }

        .card-dark:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(240, 165, 0, 0.2);
        }

        /* ========== 网格 ========== */
        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }

        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }

        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        /* ========== 图文区块 ========== */
        .content-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .content-block .text-col h3 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .content-block .text-col p {
            font-size: 1rem;
            line-height: 1.8;
            color: var(--text-secondary);
        }

        .content-block .text-col .feature-list {
            margin-top: 20px;
        }

        .content-block .text-col .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 8px 0;
            font-size: 0.95rem;
            color: var(--text-secondary);
        }

        .content-block .text-col .feature-list li i {
            color: var(--accent);
            font-size: 1rem;
            margin-top: 4px;
            flex-shrink: 0;
        }

        .content-block .image-col img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            width: 100%;
            object-fit: cover;
            aspect-ratio: 16/11;
        }

        /* ========== 流程步骤 ========== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step-counter;
            position: relative;
        }

        .steps-grid::before {
            content: '';
            position: absolute;
            top: 44px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light), var(--accent));
            opacity: 0.2;
            z-index: 0;
        }

        .step-item {
            text-align: center;
            position: relative;
            z-index: 1;
            padding: 0 8px;
        }

        .step-item .step-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: var(--primary-dark);
            font-size: 1.3rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            box-shadow: 0 4px 20px rgba(240, 165, 0, 0.3);
            transition: var(--transition);
        }

        .step-item:hover .step-number {
            transform: scale(1.1);
            box-shadow: 0 8px 32px rgba(240, 165, 0, 0.5);
        }

        .step-item h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 0.88rem;
            color: var(--text-light);
            line-height: 1.6;
            margin-bottom: 0;
        }

        .step-item-dark h4 {
            color: var(--text-inverse);
        }

        .step-item-dark p {
            color: rgba(255, 255, 255, 0.6);
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid var(--border-color);
            padding: 20px 0;
            transition: var(--transition);
        }

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

        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            padding: 4px 0;
            user-select: none;
            gap: 16px;
        }

        .faq-question h4 {
            font-size: 1.05rem;
            font-weight: 600;
            margin-bottom: 0;
            transition: var(--transition);
            flex: 1;
        }

        .faq-question .faq-toggle {
            font-size: 1.2rem;
            color: var(--accent);
            transition: var(--transition);
            flex-shrink: 0;
            width: 28px;
            text-align: center;
        }

        .faq-item.active .faq-toggle {
            transform: rotate(45deg);
        }

        .faq-item.active .faq-question h4 {
            color: var(--accent);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 28px 0 0;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding-top: 14px;
        }

        .faq-answer p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 0;
        }

        .faq-dark .faq-item {
            border-color: rgba(255, 255, 255, 0.08);
        }

        .faq-dark .faq-question h4 {
            color: var(--text-inverse);
        }

        .faq-dark .faq-answer p {
            color: rgba(255, 255, 255, 0.6);
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.webp') center center / cover no-repeat;
            opacity: 0.08;
        }

        .cta-section .cta-content {
            position: relative;
            z-index: 1;
            max-width: 640px;
            margin: 0 auto;
            padding: 0 24px;
        }

        .cta-section h2 {
            font-size: clamp(1.8rem, 3.5vw, 2.6rem);
            font-weight: 800;
            color: var(--text-inverse);
            margin-bottom: 16px;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 32px;
            line-height: 1.8;
        }

        .cta-section .btn-primary {
            font-size: 1.1rem;
            padding: 16px 44px;
        }

        .cta-section .cta-note {
            margin-top: 18px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.35);
        }

        /* ========== 标签/徽章 ========== */
        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.78rem;
            font-weight: 600;
            background: rgba(240, 165, 0, 0.12);
            color: var(--accent-dark);
            border: 1px solid rgba(240, 165, 0, 0.15);
        }

        .badge-success {
            background: rgba(46, 204, 113, 0.12);
            color: #1a8a4a;
            border-color: rgba(46, 204, 113, 0.15);
        }

        .badge-info {
            background: rgba(52, 152, 219, 0.12);
            color: #1a6fa0;
            border-color: rgba(52, 152, 219, 0.15);
        }

        /* ========== 数据统计块 ========== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            text-align: center;
        }

        .stat-card {
            padding: 32px 16px;
            background: rgba(255, 255, 255, 0.04);
            border-radius: var(--radius-lg);
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition);
        }

        .stat-card:hover {
            background: rgba(255, 255, 255, 0.08);
            transform: translateY(-4px);
        }

        .stat-card .stat-icon {
            font-size: 2rem;
            color: var(--accent);
            margin-bottom: 12px;
        }

        .stat-card .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-inverse);
            line-height: 1.2;
            margin-bottom: 4px;
        }

        .stat-card .stat-label {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.5);
            font-weight: 400;
        }

        /* ========== 登录方式卡片 ========== */
        .login-method-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            text-align: center;
            height: 100%;
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .login-method-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(240, 165, 0, 0.2);
        }

        .login-method-card .method-icon {
            width: 64px;
            height: 64px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: 50%;
            margin-bottom: 18px;
            font-size: 1.8rem;
            color: var(--accent);
            transition: var(--transition);
        }

        .login-method-card:hover .method-icon {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: var(--primary-dark);
            transform: scale(1.05);
        }

        .login-method-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .login-method-card p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }

        .login-method-card .method-tag {
            display: inline-block;
            padding: 2px 14px;
            background: rgba(240, 165, 0, 0.08);
            color: var(--accent-dark);
            font-size: 0.72rem;
            font-weight: 600;
            border-radius: 50px;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--footer-bg);
            color: var(--footer-text);
            padding: 60px 0 0;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }

        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1.4fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .site-footer .footer-brand .logo-text {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 16px;
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: none;
            -webkit-text-fill-color: #fff;
            background-clip: unset;
        }

        .site-footer .footer-brand .logo-text .logo-icon {
            width: 32px;
            height: 32px;
            font-size: 1rem;
        }

        .site-footer .footer-brand p {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.45);
            line-height: 1.8;
            max-width: 320px;
        }

        .site-footer h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 18px;
            letter-spacing: 0.3px;
        }

        .site-footer ul li {
            margin-bottom: 10px;
        }

        .site-footer ul li a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.88rem;
            transition: var(--transition);
            text-decoration: none;
        }

        .site-footer ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }

        .site-footer .social-links {
            display: flex;
            gap: 12px;
            margin-top: 8px;
        }

        .site-footer .social-links a {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.06);
            color: rgba(255, 255, 255, 0.5);
            font-size: 1rem;
            transition: var(--transition);
            text-decoration: none;
        }

        .site-footer .social-links a:hover {
            background: var(--accent);
            color: var(--primary-dark);
            transform: translateY(-3px);
        }

        .site-footer .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding: 24px 0;
            gap: 12px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.3);
        }

        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.3);
            text-decoration: none;
        }

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

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }

            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px 24px;
            }

            .steps-grid::before {
                display: none;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            body {
                padding-top: var(--nav-height-mobile);
                padding-bottom: 72px;
            }

            .site-header {
                height: var(--nav-height-mobile);
            }

            .header-inner {
                padding: 0 16px;
            }

            .logo-text {
                font-size: 0.95rem;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 1rem;
            }

            .desktop-nav {
                display: none;
            }

            .mobile-toggle {
                display: block;
            }

            .mobile-bottom-nav {
                display: block;
            }

            .hero-section {
                min-height: 70vh;
                padding: 60px 0 40px;
            }

            .hero-section h1 {
                font-size: 1.8rem;
            }

            .hero-section .hero-sub {
                font-size: 0.95rem;
            }

            .hero-section .hero-stats {
                gap: 20px;
                margin-top: 32px;
                padding-top: 24px;
            }

            .hero-section .hero-stats .stat-number {
                font-size: 1.4rem;
            }

            .section {
                padding: 56px 0;
            }

            .section-header {
                margin-bottom: 36px;
            }

            .section-header h2 {
                font-size: 1.6rem;
            }

            .grid-2,
            .grid-3,
            .grid-4 {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .content-block {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .content-block .text-col h3 {
                font-size: 1.3rem;
            }

            .steps-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px 16px;
            }

            .step-item .step-number {
                width: 44px;
                height: 44px;
                font-size: 1.1rem;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }

            .stat-card {
                padding: 20px 12px;
            }

            .stat-card .stat-number {
                font-size: 1.6rem;
            }

            .login-method-card {
                padding: 20px 16px;
            }

            .cta-section {
                padding: 56px 0;
            }

            .cta-section h2 {
                font-size: 1.6rem;
            }

            .site-footer {
                padding: 40px 0 0;
            }

            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .site-footer .footer-bottom {
                flex-direction: column;
                text-align: center;
                padding: 20px 0;
            }

            .faq-question h4 {
                font-size: 0.95rem;
            }

            .btn-primary {
                padding: 12px 28px;
                font-size: 0.95rem;
            }

            .btn-secondary {
                padding: 12px 24px;
                font-size: 0.95rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .hero-section h1 {
                font-size: 1.5rem;
            }

            .hero-section .hero-badge {
                font-size: 0.75rem;
                padding: 4px 14px;
            }

            .hero-section .hero-actions {
                flex-direction: column;
                align-items: center;
            }

            .hero-section .hero-actions .btn-primary,
            .hero-section .hero-actions .btn-secondary {
                width: 100%;
                justify-content: center;
            }

            .section-header h2 {
                font-size: 1.4rem;
            }

            .steps-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }

            .stat-card .stat-number {
                font-size: 1.3rem;
            }

            .stat-card .stat-icon {
                font-size: 1.4rem;
            }

            .mobile-bottom-nav .tab-item {
                padding: 4px 8px;
                min-width: 44px;
            }

            .mobile-bottom-nav .tab-item i {
                font-size: 1.1rem;
            }

            .mobile-bottom-nav .tab-item span {
                font-size: 0.5rem;
            }

            .mobile-bottom-nav .tab-cta {
                padding: 6px 14px;
                min-width: 56px;
            }
        }

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

        .mt-1 {
            margin-top: 16px;
        }
        .mt-2 {
            margin-top: 32px;
        }
        .mt-3 {
            margin-top: 48px;
        }

        .mb-1 {
            margin-bottom: 16px;
        }
        .mb-2 {
            margin-bottom: 32px;
        }

        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .gap-2 {
            gap: 16px;
        }

        /* 滚动条美化 */
        ::-webkit-scrollbar {
            width: 6px;
            height: 6px;
        }

        ::-webkit-scrollbar-track {
            background: var(--bg-body);
        }

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

        ::-webkit-scrollbar-thumb:hover {
            background: var(--text-secondary);
        }

@media (max-width: 768px) {
            .desktop-nav.show-mobile {
                display: flex;
                flex-direction: column;
                position: fixed;
                top: var(--nav-height-mobile);
                left: 0;
                right: 0;
                background: rgba(15, 15, 46, 0.98);
                backdrop-filter: blur(20px);
                padding: 16px 24px 24px;
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
                box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
                gap: 4px;
                z-index: 998;
                animation: slideDown 0.25s ease;
            }

            @keyframes slideDown {
                from {
                    opacity: 0;
                    transform: translateY(-12px);
                }
                to {
                    opacity: 1;
                    transform: translateY(0);
                }
            }

            .desktop-nav.show-mobile a {
                padding: 12px 16px;
                font-size: 1rem;
                width: 100%;
                border-radius: var(--radius-sm);
                color: rgba(255, 255, 255, 0.8);
            }

            .desktop-nav.show-mobile a::after {
                display: none;
            }

            .desktop-nav.show-mobile a:hover {
                background: rgba(255, 255, 255, 0.08);
                color: #fff;
            }

            .desktop-nav.show-mobile a.active {
                background: rgba(240, 165, 0, 0.12);
                color: var(--accent);
            }

            .desktop-nav.show-mobile .nav-cta-btn {
                margin-left: 0;
                margin-top: 8px;
                text-align: center;
                justify-content: center;
            }
        }