/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0b1a2e;
            --primary-light: #132a44;
            --primary-dark: #060f1a;
            --accent: #f5a623;
            --accent-hover: #e09510;
            --accent-glow: rgba(245, 166, 35, 0.3);
            --bg-dark: #0b1a2e;
            --bg-card: rgba(255, 255, 255, 0.06);
            --bg-card-hover: rgba(255, 255, 255, 0.10);
            --bg-section-alt: #0f2240;
            --text-primary: #ffffff;
            --text-secondary: #c0d0e0;
            --text-muted: #8899aa;
            --border-color: rgba(255, 255, 255, 0.10);
            --border-accent: rgba(245, 166, 35, 0.3);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
            --shadow-md: 0 8px 32px rgba(0,0,0,0.4);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.5);
            --shadow-accent: 0 4px 24px rgba(245, 166, 35, 0.25);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container-max: 1200px;
            --nav-height: 72px;
        }

        /* ===== Reset & Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            background: var(--bg-dark);
            color: var(--text-primary);
            line-height: 1.6;
            font-size: 16px;
            overflow-x: hidden;
        }
        a { color: var(--accent); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent-hover); }
        a:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 4px; }
        img { max-width: 100%; height: auto; display: block; }
        button { cursor: pointer; font-family: inherit; border: none; background: none; transition: var(--transition); }
        button:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 4px; }
        input, textarea { font-family: inherit; font-size: 1rem; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.25; font-weight: 700; }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) { .container { padding: 0 16px; } }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--nav-height);
            background: rgba(11, 26, 46, 0.92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .site-header.scrolled { background: rgba(6, 15, 26, 0.96); box-shadow: var(--shadow-md); }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: 0.5px;
        }
        .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--accent), #f7c948);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: var(--primary);
            flex-shrink: 0;
        }
        .logo span { color: var(--accent); }
        .logo:hover { color: var(--text-primary); }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .nav-list a {
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            transition: var(--transition);
            position: relative;
        }
        .nav-list a:hover { color: var(--text-primary); background: rgba(255,255,255,0.06); }
        .nav-list a.active {
            color: var(--accent);
            background: rgba(245, 166, 35, 0.10);
        }
        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }
        .nav-cta {
            background: linear-gradient(135deg, var(--accent), #f7c948) !important;
            color: var(--primary) !important;
            font-weight: 700 !important;
            padding: 10px 24px !important;
            border-radius: var(--radius-sm) !important;
            box-shadow: var(--shadow-accent);
        }
        .nav-cta:hover { transform: translateY(-2px); box-shadow: 0 6px 28px rgba(245, 166, 35, 0.4) !important; background: linear-gradient(135deg, var(--accent-hover), #f5a623) !important; color: var(--primary) !important; }

        /* 移动端汉堡 */
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            cursor: pointer;
            background: none;
            border: none;
        }
        .hamburger span {
            width: 26px;
            height: 2.5px;
            background: var(--text-primary);
            border-radius: 4px;
            transition: var(--transition);
        }
        .hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
        .hamburger.active span:nth-child(2) { opacity: 0; }
        .hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--nav-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(6, 15, 26, 0.98);
            backdrop-filter: blur(20px);
            padding: 32px 24px;
            flex-direction: column;
            gap: 12px;
            z-index: 999;
            overflow-y: auto;
        }
        .mobile-nav.open { display: flex; }
        .mobile-nav a {
            padding: 16px 20px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-size: 1.1rem;
            font-weight: 500;
            border: 1px solid var(--border-color);
            text-align: center;
        }
        .mobile-nav a:hover { color: var(--text-primary); background: var(--bg-card); }
        .mobile-nav a.active { color: var(--accent); border-color: var(--border-accent); background: rgba(245, 166, 35, 0.06); }
        .mobile-nav .nav-cta { margin-top: 8px; border: none; }

        @media (max-width: 768px) {
            .nav-list { display: none; }
            .hamburger { display: flex; }
            .header-inner { padding: 0 16px; }
            .logo { font-size: 1.1rem; }
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 120px 24px 80px;
            background: linear-gradient(135deg, #060f1a 0%, #0b1a2e 40%, #132a44 100%);
            overflow: hidden;
        }
        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.25;
            z-index: 0;
        }
        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(245, 166, 35, 0.06) 0%, transparent 70%);
            z-index: 1;
        }
        .hero-particles {
            position: absolute;
            inset: 0;
            overflow: hidden;
            z-index: 1;
            pointer-events: none;
        }
        .hero-particles span {
            position: absolute;
            width: 4px;
            height: 4px;
            background: rgba(245, 166, 35, 0.4);
            border-radius: 50%;
            animation: float 12s infinite ease-in-out;
        }
        .hero-particles span:nth-child(1) { top: 20%; left: 10%; animation-delay: 0s; width: 6px; height: 6px; }
        .hero-particles span:nth-child(2) { top: 60%; left: 80%; animation-delay: 2s; }
        .hero-particles span:nth-child(3) { top: 80%; left: 20%; animation-delay: 4s; width: 5px; height: 5px; }
        .hero-particles span:nth-child(4) { top: 30%; left: 70%; animation-delay: 6s; }
        .hero-particles span:nth-child(5) { top: 70%; left: 50%; animation-delay: 8s; width: 3px; height: 3px; }
        .hero-particles span:nth-child(6) { top: 10%; left: 90%; animation-delay: 3s; width: 5px; height: 5px; }
        @keyframes float {
            0%, 100% { transform: translateY(0) scale(1); opacity: 0.4; }
            50% { transform: translateY(-40px) scale(1.5); opacity: 0.8; }
        }

        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 860px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(245, 166, 35, 0.12);
            border: 1px solid var(--border-accent);
            border-radius: 100px;
            padding: 8px 20px;
            font-size: 0.85rem;
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 28px;
            letter-spacing: 0.3px;
        }
        .hero-badge i { font-size: 0.75rem; }
        .hero h1 {
            font-size: 3.6rem;
            font-weight: 900;
            line-height: 1.1;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #ffffff 40%, var(--accent) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero p {
            font-size: 1.2rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto 36px;
            line-height: 1.7;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 16px 36px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1rem;
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent), #f7c948);
            color: var(--primary);
            box-shadow: var(--shadow-accent);
        }
        .btn-primary:hover { transform: translateY(-3px); box-shadow: 0 8px 32px rgba(245, 166, 35, 0.45); color: var(--primary); }
        .btn-secondary {
            background: rgba(255,255,255,0.08);
            color: var(--text-primary);
            border: 1px solid var(--border-color);
            backdrop-filter: blur(10px);
        }
        .btn-secondary:hover { background: rgba(255,255,255,0.14); color: var(--text-primary); transform: translateY(-3px); }
        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 48px;
            margin-top: 56px;
            padding-top: 40px;
            border-top: 1px solid var(--border-color);
        }
        .hero-stat { text-align: center; }
        .hero-stat .num { font-size: 2.2rem; font-weight: 900; color: var(--accent); display: block; }
        .hero-stat .label { font-size: 0.9rem; color: var(--text-muted); margin-top: 4px; }

        @media (max-width: 768px) {
            .hero { padding: 100px 16px 60px; min-height: 90vh; }
            .hero h1 { font-size: 2.2rem; }
            .hero p { font-size: 1rem; }
            .hero-stats { gap: 24px; flex-wrap: wrap; }
            .hero-stat .num { font-size: 1.6rem; }
        }
        @media (max-width: 520px) {
            .hero h1 { font-size: 1.8rem; }
            .hero-actions { flex-direction: column; align-items: center; }
            .btn { width: 100%; justify-content: center; }
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 100px 0;
        }
        .section-alt { background: var(--bg-section-alt); }
        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 56px;
        }
        .section-header h2 {
            font-size: 2.4rem;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--text-primary);
        }
        .section-header h2 span { color: var(--accent); }
        .section-header p {
            color: var(--text-secondary);
            font-size: 1.05rem;
            line-height: 1.7;
        }
        .section-tag {
            display: inline-block;
            background: rgba(245, 166, 35, 0.10);
            border: 1px solid var(--border-accent);
            border-radius: 100px;
            padding: 6px 18px;
            font-size: 0.8rem;
            color: var(--accent);
            font-weight: 600;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        @media (max-width: 768px) {
            .section { padding: 60px 0; }
            .section-header h2 { font-size: 1.8rem; }
            .section-header { margin-bottom: 40px; }
        }

        /* ===== 优势卡片 ===== */
        .advantages-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .advantage-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 36px 28px;
            text-align: center;
            transition: var(--transition);
            backdrop-filter: blur(10px);
        }
        .advantage-card:hover {
            background: var(--bg-card-hover);
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-accent);
        }
        .advantage-card .icon {
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: rgba(245, 166, 35, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 1.6rem;
            color: var(--accent);
            transition: var(--transition);
        }
        .advantage-card:hover .icon { background: rgba(245, 166, 35, 0.20); transform: scale(1.05); }
        .advantage-card h3 { font-size: 1.2rem; font-weight: 700; margin-bottom: 12px; }
        .advantage-card p { font-size: 0.92rem; color: var(--text-secondary); line-height: 1.6; }

        @media (max-width: 1024px) { .advantages-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 520px) { .advantages-grid { grid-template-columns: 1fr; } }

        /* ===== 分类入口 ===== */
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            min-height: 300px;
            display: flex;
            flex-direction: column;
        }
        .category-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); border-color: var(--border-accent); }
        .category-card .thumb {
            height: 180px;
            overflow: hidden;
            position: relative;
        }
        .category-card .thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .category-card:hover .thumb img { transform: scale(1.06); }
        .category-card .thumb .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(11,26,46,0.8) 0%, transparent 60%);
        }
        .category-card .body {
            padding: 20px 24px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .category-card .badge {
            display: inline-block;
            background: var(--accent);
            color: var(--primary);
            font-size: 0.7rem;
            font-weight: 800;
            padding: 4px 12px;
            border-radius: 100px;
            align-self: flex-start;
            margin-bottom: 10px;
            letter-spacing: 0.3px;
        }
        .category-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 8px; }
        .category-card p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.5; flex: 1; }
        .category-card .link {
            margin-top: 16px;
            color: var(--accent);
            font-weight: 600;
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .category-card .link i { transition: var(--transition); font-size: 0.8rem; }
        .category-card:hover .link i { transform: translateX(4px); }

        @media (max-width: 1024px) { .categories-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 520px) { .categories-grid { grid-template-columns: 1fr; } }

        /* ===== 资讯列表 ===== */
        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
            max-width: 860px;
            margin: 0 auto;
        }
        .news-item {
            display: flex;
            gap: 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            transition: var(--transition);
            align-items: flex-start;
        }
        .news-item:hover { background: var(--bg-card-hover); border-color: var(--border-accent); transform: translateX(4px); }
        .news-item .num {
            font-size: 1.6rem;
            font-weight: 900;
            color: var(--accent);
            opacity: 0.5;
            min-width: 40px;
            line-height: 1;
        }
        .news-item .content { flex: 1; }
        .news-item .content h4 { font-size: 1.05rem; font-weight: 600; margin-bottom: 6px; }
        .news-item .content h4 a { color: var(--text-primary); }
        .news-item .content h4 a:hover { color: var(--accent); }
        .news-item .content p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .news-item .meta {
            display: flex;
            gap: 16px;
            margin-top: 10px;
            font-size: 0.8rem;
            color: var(--text-muted);
        }
        .news-item .meta span { display: inline-flex; align-items: center; gap: 4px; }
        .news-item .tag {
            background: rgba(245, 166, 35, 0.08);
            color: var(--accent);
            padding: 2px 12px;
            border-radius: 100px;
            font-size: 0.75rem;
            font-weight: 600;
        }
        .news-empty {
            text-align: center;
            padding: 48px 24px;
            color: var(--text-muted);
            font-size: 1.05rem;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px dashed var(--border-color);
        }

        @media (max-width: 768px) {
            .news-item { flex-direction: column; padding: 20px; gap: 12px; }
            .news-item .num { display: none; }
        }

        /* ===== 数据统计 ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-card {
            text-align: center;
            padding: 40px 20px;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            transition: var(--transition);
        }
        .stat-card:hover { background: var(--bg-card-hover); transform: translateY(-4px); border-color: var(--border-accent); }
        .stat-card .icon { font-size: 2rem; color: var(--accent); margin-bottom: 16px; }
        .stat-card .num { font-size: 2.6rem; font-weight: 900; color: var(--text-primary); display: block; }
        .stat-card .label { font-size: 0.95rem; color: var(--text-secondary); margin-top: 8px; }

        @media (max-width: 1024px) { .stats-grid { grid-template-columns: repeat(2, 1fr); } }
        @media (max-width: 520px) { .stats-grid { grid-template-columns: 1fr; } }

        /* ===== 流程 ===== */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            position: relative;
        }
        .steps-grid::before {
            content: '';
            position: absolute;
            top: 40px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: linear-gradient(to right, var(--accent), rgba(245,166,35,0.2));
            z-index: 0;
        }
        .step-card {
            text-align: center;
            position: relative;
            z-index: 1;
        }
        .step-card .step-num {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), #f7c948);
            color: var(--primary);
            font-size: 1.8rem;
            font-weight: 900;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            box-shadow: var(--shadow-accent);
        }
        .step-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; }
        .step-card p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.5; }

        @media (max-width: 1024px) {
            .steps-grid { grid-template-columns: repeat(2, 1fr); }
            .steps-grid::before { display: none; }
        }
        @media (max-width: 520px) { .steps-grid { grid-template-columns: 1fr; } }

        /* ===== FAQ ===== */
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover { border-color: var(--border-accent); }
        .faq-question {
            width: 100%;
            padding: 20px 28px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            text-align: left;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            background: none;
            border: none;
            cursor: pointer;
            gap: 16px;
        }
        .faq-question i {
            color: var(--accent);
            transition: var(--transition);
            font-size: 0.9rem;
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 28px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 28px 24px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #0b1a2e, #132a44);
            border-top: 1px solid var(--border-color);
            border-bottom: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            z-index: 0;
        }
        .cta-content {
            position: relative;
            z-index: 1;
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }
        .cta-content h2 { font-size: 2.4rem; font-weight: 800; margin-bottom: 16px; }
        .cta-content h2 span { color: var(--accent); }
        .cta-content p { font-size: 1.05rem; color: var(--text-secondary); margin-bottom: 32px; line-height: 1.7; }
        .cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

        @media (max-width: 520px) {
            .cta-content h2 { font-size: 1.8rem; }
            .cta-actions { flex-direction: column; align-items: center; }
            .cta-actions .btn { width: 100%; justify-content: center; }
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--primary-dark);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo { margin-bottom: 16px; }
        .footer-brand p { font-size: 0.92rem; color: var(--text-muted); line-height: 1.7; max-width: 320px; }
        .footer-col h4 { font-size: 0.95rem; font-weight: 700; color: var(--text-primary); margin-bottom: 20px; }
        .footer-col a {
            display: block;
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 12px;
            transition: var(--transition);
        }
        .footer-col a:hover { color: var(--accent); padding-left: 4px; }
        .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        .footer-bottom a { color: var(--text-muted); }
        .footer-bottom a:hover { color: var(--accent); }

        @media (max-width: 1024px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
        @media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } .footer-bottom { flex-direction: column; text-align: center; } }

        /* ===== 回到顶部 ===== */
        .back-top {
            position: fixed;
            bottom: 32px;
            right: 32px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--accent);
            color: var(--primary);
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-accent);
            z-index: 100;
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
            transition: var(--transition);
        }
        .back-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
        .back-top:hover { transform: translateY(-4px); box-shadow: 0 8px 32px rgba(245, 166, 35, 0.5); color: var(--primary); }

        /* ===== 滚动动画 ===== */
        .reveal {
            opacity: 0;
            transform: translateY(30px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }
        .reveal.visible { opacity: 1; transform: translateY(0); }

        /* ===== 额外辅助 ===== */
        .text-accent { color: var(--accent); }
        .text-center { text-align: center; }
        .mt-16 { margin-top: 16px; }
        .mt-24 { margin-top: 24px; }
        .mt-32 { margin-top: 32px; }
        .gap-8 { gap: 8px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }

        /* ===== 图片圆角 ===== */
        .rounded-img { border-radius: var(--radius-sm); }

        /* ===== 响应式微调 ===== */
        @media (max-width: 1024px) {
            .hero h1 { font-size: 2.8rem; }
        }
        @media (max-width: 768px) {
            .hero h1 { font-size: 2rem; }
            .section-header h2 { font-size: 1.6rem; }
            .stat-card .num { font-size: 2rem; }
        }
        @media (max-width: 520px) {
            .hero h1 { font-size: 1.6rem; }
            .hero p { font-size: 0.95rem; }
            .btn { padding: 14px 24px; font-size: 0.95rem; }
            .container { padding: 0 12px; }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a2a6c;
            --primary-light: #2d4ba0;
            --primary-dark: #0f1a45;
            --secondary: #e8b830;
            --secondary-light: #f5d060;
            --secondary-dark: #c99a20;
            --accent: #ff6b35;
            --accent-light: #ff8a5c;
            --bg-body: #f8f9fc;
            --bg-white: #ffffff;
            --bg-light: #f0f2f8;
            --bg-dark: #0f1a45;
            --bg-card: #ffffff;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-light: #7a7a9a;
            --text-white: #ffffff;
            --border: #e2e6ee;
            --border-light: #f0f2f6;
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --radius-xl: 32px;
            --shadow-sm: 0 2px 8px rgba(26, 42, 108, 0.06);
            --shadow-md: 0 8px 30px rgba(26, 42, 108, 0.1);
            --shadow-lg: 0 20px 60px rgba(26, 42, 108, 0.15);
            --shadow-hover: 0 16px 48px rgba(26, 42, 108, 0.18);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
            --container: 1200px;
            --header-h: 76px;
        }

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

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

        body {
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

        a:hover {
            color: var(--primary-light);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
            background: none;
        }

        button {
            cursor: pointer;
        }

        ul,
        ol {
            list-style: none;
        }

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

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

        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }

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

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

        .logo .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 18px;
            box-shadow: 0 4px 12px rgba(26, 42, 108, 0.25);
        }

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

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

        .nav-list a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }

        .nav-list a:hover {
            color: var(--primary);
            background: rgba(26, 42, 108, 0.05);
        }

        .nav-list a.active {
            color: var(--primary);
            background: rgba(26, 42, 108, 0.08);
            font-weight: 600;
        }

        .nav-list a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 18px;
            right: 18px;
            height: 3px;
            background: var(--secondary);
            border-radius: 3px;
        }

        .nav-list .nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff !important;
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 4px 16px rgba(26, 42, 108, 0.25);
        }

        .nav-list .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(26, 42, 108, 0.35);
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
        }

        .nav-list .nav-cta i {
            font-size: 14px;
        }

        /* Mobile toggle */
        .mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--primary);
            background: rgba(26, 42, 108, 0.06);
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
        }

        .mobile-toggle:hover {
            background: rgba(26, 42, 108, 0.1);
        }

        /* ===== Page Banner ===== */
        .page-banner {
            padding: 140px 0 60px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            position: relative;
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }

        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }

        .page-banner::after {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(232, 184, 48, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }

        .page-banner h1 {
            font-size: 48px;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -1px;
            line-height: 1.15;
        }

        .page-banner h1 i {
            color: var(--secondary);
        }

        .page-banner p {
            font-size: 20px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 720px;
            margin: 0 auto 24px;
            line-height: 1.6;
        }

        .banner-breadcrumb {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            margin-bottom: 8px;
        }

        .banner-breadcrumb a {
            color: rgba(255, 255, 255, 0.75);
        }

        .banner-breadcrumb a:hover {
            color: var(--secondary);
        }

        .banner-breadcrumb .sep {
            color: rgba(255, 255, 255, 0.3);
        }

        /* ===== Sections ===== */
        section {
            padding: 80px 0;
        }

        .section-title {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            text-align: center;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
            line-height: 1.2;
        }

        .section-sub {
            text-align: center;
            color: var(--text-light);
            font-size: 18px;
            max-width: 640px;
            margin: 0 auto 48px;
            line-height: 1.6;
        }

        .section-sub strong {
            color: var(--primary);
        }

        /* ===== Entry Intro ===== */
        .entry-intro {
            background: var(--bg-white);
        }

        .entry-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
        }

        .entry-text h2 {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 20px;
            line-height: 1.25;
        }

        .entry-text h2 span {
            color: var(--secondary);
        }

        .entry-text p {
            color: var(--text-secondary);
            font-size: 17px;
            line-height: 1.8;
            margin-bottom: 20px;
        }

        .entry-text .entry-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            margin-top: 24px;
        }

        .entry-text .entry-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 10px;
            background: var(--bg-light);
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
        }

        .entry-text .entry-meta .meta-item i {
            color: var(--secondary);
            font-size: 18px;
        }

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

        .entry-image img {
            width: 100%;
            height: 400px;
            object-fit: cover;
            transition: var(--transition);
        }

        .entry-image:hover img {
            transform: scale(1.03);
        }

        .entry-image .img-badge {
            position: absolute;
            top: 20px;
            left: 20px;
            background: var(--secondary);
            color: var(--primary-dark);
            padding: 6px 16px;
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-weight: 700;
            box-shadow: 0 4px 12px rgba(232, 184, 48, 0.4);
        }

        /* ===== Features ===== */
        .features-section {
            background: var(--bg-light);
        }

        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            padding: 36px 28px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-light);
            text-align: center;
        }

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

        .feature-card .fc-icon {
            width: 64px;
            height: 64px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            color: #fff;
            margin: 0 auto 20px;
            box-shadow: 0 8px 24px rgba(26, 42, 108, 0.2);
        }

        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 12px;
        }

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

        .feature-card .fc-tag {
            display: inline-block;
            margin-top: 16px;
            padding: 4px 14px;
            background: rgba(232, 184, 48, 0.15);
            color: var(--secondary-dark);
            border-radius: 20px;
            font-size: 13px;
            font-weight: 600;
        }

        /* ===== How to Enter (流程) ===== */
        .how-section {
            background: var(--bg-white);
        }

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

        .step-card {
            background: var(--bg-light);
            border-radius: var(--radius-md);
            padding: 32px 20px;
            text-align: center;
            position: relative;
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }

        .step-card:hover {
            background: var(--bg-white);
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }

        .step-card .step-num {
            width: 48px;
            height: 48px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            font-weight: 800;
            margin: 0 auto 16px;
            box-shadow: 0 6px 20px rgba(26, 42, 108, 0.2);
        }

        .step-card h4 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }

        .step-card p {
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.6;
        }

        .step-card .step-arrow {
            position: absolute;
            top: 50%;
            right: -16px;
            transform: translateY(-50%);
            font-size: 20px;
            color: var(--secondary);
            z-index: 2;
        }

        .steps-grid .step-card:last-child .step-arrow {
            display: none;
        }

        /* ===== Service Categories ===== */
        .service-section {
            background: var(--bg-light);
        }

        .service-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

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

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

        .service-card .sc-img {
            height: 200px;
            overflow: hidden;
            position: relative;
        }

        .service-card .sc-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .service-card:hover .sc-img img {
            transform: scale(1.05);
        }

        .service-card .sc-img .sc-overlay {
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            padding: 16px 20px;
            background: linear-gradient(transparent, rgba(15, 26, 69, 0.8));
        }

        .service-card .sc-img .sc-overlay span {
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            background: var(--secondary);
            color: var(--primary-dark);
            padding: 3px 12px;
            border-radius: 20px;
        }

        .service-card .sc-body {
            padding: 24px 20px 20px;
        }

        .service-card .sc-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 10px;
        }

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

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

        .service-card .sc-body .sc-link i {
            font-size: 12px;
            transition: var(--transition);
        }

        .service-card .sc-body .sc-link:hover i {
            transform: translateX(4px);
        }

        /* ===== Stats ===== */
        .stats-section {
            background: var(--primary-dark);
            position: relative;
            overflow: hidden;
        }

        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            position: relative;
            z-index: 2;
        }

        .stat-item {
            text-align: center;
            padding: 20px;
        }

        .stat-item .stat-num {
            font-size: 48px;
            font-weight: 800;
            color: var(--secondary);
            line-height: 1.1;
            margin-bottom: 8px;
        }

        .stat-item .stat-label {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.8);
            font-weight: 500;
        }

        .stat-item .stat-icon {
            font-size: 32px;
            color: rgba(232, 184, 48, 0.3);
            margin-bottom: 12px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-white);
        }

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

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

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

        .faq-item .faq-q {
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            color: var(--primary);
            gap: 16px;
            user-select: none;
        }

        .faq-item .faq-q i {
            color: var(--secondary);
            font-size: 18px;
            transition: var(--transition);
            flex-shrink: 0;
        }

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

        .faq-item .faq-a {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: var(--transition);
            color: var(--text-secondary);
            font-size: 15px;
            line-height: 1.7;
        }

        .faq-item.active .faq-a {
            padding: 0 24px 20px;
            max-height: 300px;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.1;
            mix-blend-mode: overlay;
        }

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

        .cta-section h2 {
            font-size: 38px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }

        .cta-section p {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin: 0 auto 32px;
        }

        .cta-section .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            background: var(--secondary);
            color: var(--primary-dark);
            padding: 16px 40px;
            border-radius: var(--radius-sm);
            font-size: 18px;
            font-weight: 700;
            box-shadow: 0 8px 32px rgba(232, 184, 48, 0.35);
            transition: var(--transition);
        }

        .cta-section .cta-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(232, 184, 48, 0.5);
            background: var(--secondary-light);
            color: var(--primary-dark);
        }

        .cta-section .cta-btn i {
            font-size: 18px;
        }

        .cta-section .cta-safe {
            margin-top: 16px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

        .cta-section .cta-safe i {
            color: var(--secondary);
        }

        /* ===== Footer (共享) ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 30px;
        }

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

        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .logo {
            color: #fff;
            margin-bottom: 16px;
            font-size: 20px;
        }

        .footer-brand .logo .logo-icon {
            background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
            color: var(--primary-dark);
        }

        .footer-brand p {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 16px;
            letter-spacing: 0.5px;
        }

        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            padding: 5px 0;
            transition: var(--transition);
        }

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

        .footer-col a i {
            width: 20px;
            color: var(--secondary);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-top: 24px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }

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

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .entry-grid {
                gap: 40px;
            }

            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .service-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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

            .step-card .step-arrow {
                display: none;
            }

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

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

        @media (max-width: 768px) {
            :root {
                --header-h: 64px;
            }

            .mobile-toggle {
                display: flex;
            }

            .nav-list {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px 24px 24px;
                gap: 6px;
                box-shadow: var(--shadow-lg);
                transform: translateY(-120%);
                opacity: 0;
                transition: var(--transition);
                border-bottom: 1px solid var(--border);
                max-height: calc(100vh - var(--header-h));
                overflow-y: auto;
            }

            .nav-list.open {
                transform: translateY(0);
                opacity: 1;
            }

            .nav-list a {
                width: 100%;
                padding: 12px 16px;
                font-size: 16px;
            }

            .nav-list a.active::after {
                display: none;
            }

            .nav-list .nav-cta {
                justify-content: center;
                margin-top: 8px;
            }

            .page-banner {
                padding: 100px 0 40px;
                min-height: 240px;
            }

            .page-banner h1 {
                font-size: 28px;
            }

            .page-banner p {
                font-size: 16px;
            }

            section {
                padding: 48px 0;
            }

            .section-title {
                font-size: 26px;
            }

            .section-sub {
                font-size: 16px;
                margin-bottom: 32px;
            }

            .entry-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            .entry-text h2 {
                font-size: 24px;
            }

            .entry-image img {
                height: 260px;
            }

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

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

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

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

            .stat-item .stat-num {
                font-size: 32px;
            }

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

            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }

            .cta-section h2 {
                font-size: 26px;
            }

            .cta-section .cta-btn {
                padding: 14px 28px;
                font-size: 16px;
            }
        }

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

            .page-banner h1 {
                font-size: 22px;
            }

            .page-banner p {
                font-size: 14px;
            }

            .section-title {
                font-size: 22px;
            }

            .entry-text .entry-meta .meta-item {
                font-size: 13px;
                padding: 8px 14px;
            }

            .feature-card {
                padding: 24px 18px;
            }

            .stat-item .stat-num {
                font-size: 26px;
            }

            .stat-item .stat-label {
                font-size: 13px;
            }

            .faq-item .faq-q {
                font-size: 14px;
                padding: 16px 18px;
            }

            .faq-item .faq-a {
                font-size: 14px;
            }
        }

/* roulang page: article */
:root {
    --primary: #1a1a3e;
    --primary-light: #2d2d6b;
    --primary-dark: #0f0f2a;
    --accent: #f0b90b;
    --accent-hover: #d4a509;
    --accent-light: #fde48a;
    --bg: #f8f9fa;
    --bg-alt: #f0f2f5;
    --bg-dark: #0f0f2a;
    --text: #2d2d2d;
    --text-light: #6c757d;
    --text-lighter: #9ca3af;
    --text-white: #ffffff;
    --border: #e8e8e8;
    --border-light: #f0f0f0;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 20px;
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-hover: 0 8px 30px rgba(0,0,0,0.15);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.12);
    --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --max-width: 1200px;
    --header-height: 72px;
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font-sans); font-size: 16px; line-height: 1.7; color: var(--text); background: var(--bg); }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
button, input, textarea { font-family: inherit; font-size: inherit; border: none; outline: none; transition: var(--transition); }
ul, ol { list-style: none; }
h1, h2, h3, h4, h5, h6 { line-height: 1.3; font-weight: 700; color: var(--text); }
.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
@media (max-width: 768px) { .container { padding: 0 16px; } }

/* ===== Header & Nav ===== */
.site-header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
    background: rgba(26,26,62,0.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(240,185,11,0.12);
    height: var(--header-height);
    transition: var(--transition);
}
.site-header .container {
    display: flex; align-items: center; justify-content: space-between;
    height: 100%;
}
.logo {
    display: flex; align-items: center; gap: 10px;
    font-size: 24px; font-weight: 800; color: var(--text-white); letter-spacing: 0.5px;
    flex-shrink: 0;
}
.logo .logo-icon {
    width: 40px; height: 40px; border-radius: 10px;
    background: linear-gradient(135deg, var(--accent), #f59e0b);
    display: flex; align-items: center; justify-content: center;
    color: var(--primary-dark); font-size: 20px; box-shadow: 0 4px 12px rgba(240,185,11,0.3);
}
.logo span { color: var(--accent); font-weight: 800; }
.nav-list { display: flex; align-items: center; gap: 8px; }
.nav-list a {
    padding: 8px 20px; border-radius: var(--radius-sm);
    font-size: 15px; font-weight: 500; color: rgba(255,255,255,0.8);
    position: relative; transition: var(--transition);
}
.nav-list a:hover, .nav-list a:focus-visible { color: var(--text-white); background: rgba(240,185,11,0.1); }
.nav-list a.active { color: var(--accent); background: rgba(240,185,11,0.12); }
.nav-list a.active::after {
    content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%);
    width: 20px; height: 3px; border-radius: 2px; background: var(--accent);
}
.nav-list a.nav-cta {
    background: linear-gradient(135deg, var(--accent), #f59e0b);
    color: var(--primary-dark); font-weight: 700; padding: 8px 24px;
    border-radius: var(--radius-sm); box-shadow: 0 4px 14px rgba(240,185,11,0.3);
}
.nav-list a.nav-cta:hover {
    transform: translateY(-2px); box-shadow: 0 6px 20px rgba(240,185,11,0.4);
    background: linear-gradient(135deg, #f59e0b, var(--accent));
}
.nav-list a.nav-cta i { margin-right: 6px; font-size: 14px; }
.mobile-toggle {
    display: none; background: none; color: var(--text-white);
    font-size: 24px; padding: 8px; cursor: pointer; border-radius: var(--radius-sm);
}
.mobile-toggle:hover { background: rgba(255,255,255,0.08); }
@media (max-width: 768px) {
    .nav-list { display: none; position: absolute; top: var(--header-height); left: 0; right: 0;
        background: rgba(26,26,62,0.99); backdrop-filter: blur(12px);
        flex-direction: column; padding: 16px 24px 24px;
        border-bottom: 1px solid rgba(240,185,11,0.12);
    }
    .nav-list.open { display: flex; }
    .nav-list a { width: 100%; padding: 12px 16px; }
    .nav-list a.nav-cta { text-align: center; }
    .mobile-toggle { display: block; }
}

/* ===== Article Hero ===== */
.article-hero {
    padding: 120px 0 60px; margin-top: var(--header-height);
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
    position: relative; overflow: hidden;
}
.article-hero::before {
    content: ''; position: absolute; inset: 0;
    background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    opacity: 0.12; pointer-events: none;
}
.article-hero::after {
    content: ''; position: absolute; bottom: 0; left: 0; right: 0;
    height: 120px; background: linear-gradient(to top, var(--bg), transparent);
}
.article-hero .container { position: relative; z-index: 2; }
.article-hero .hero-breadcrumb {
    display: flex; align-items: center; gap: 8px; margin-bottom: 20px;
    font-size: 14px; color: rgba(255,255,255,0.55);
}
.article-hero .hero-breadcrumb a { color: rgba(255,255,255,0.7); }
.article-hero .hero-breadcrumb a:hover { color: var(--accent); }
.article-hero .hero-breadcrumb i { font-size: 12px; color: rgba(255,255,255,0.3); }
.article-hero .hero-category {
    display: inline-block; padding: 5px 16px; border-radius: 20px;
    background: rgba(240,185,11,0.15); border: 1px solid rgba(240,185,11,0.25);
    color: var(--accent); font-size: 13px; font-weight: 600; margin-bottom: 16px;
}
.article-hero h1 {
    font-size: 38px; font-weight: 800; color: var(--text-white);
    max-width: 800px; line-height: 1.25; margin-bottom: 20px;
}
.article-hero .hero-meta {
    display: flex; align-items: center; gap: 24px; flex-wrap: wrap;
    color: rgba(255,255,255,0.6); font-size: 14px;
}
.article-hero .hero-meta i { margin-right: 6px; color: var(--accent); }
.article-hero .hero-meta span { display: flex; align-items: center; }
@media (max-width: 768px) {
    .article-hero { padding: 100px 0 40px; }
    .article-hero h1 { font-size: 26px; }
    .article-hero .hero-meta { gap: 16px; }
}

/* ===== Article Body ===== */
.article-body-section {
    padding: 60px 0; background: var(--bg);
    position: relative; z-index: 2;
}
.article-body-section .article-inner {
    max-width: 800px; margin: 0 auto;
    background: var(--text-white); border-radius: var(--radius-lg);
    box-shadow: var(--shadow); padding: 48px 56px;
}
.article-body-section .article-inner .article-content {
    font-size: 16px; line-height: 1.9; color: var(--text);
}
.article-body-section .article-inner .article-content p {
    margin-bottom: 1.4em;
}
.article-body-section .article-inner .article-content h2 {
    font-size: 24px; margin: 1.6em 0 0.6em; color: var(--primary);
}
.article-body-section .article-inner .article-content h3 {
    font-size: 20px; margin: 1.4em 0 0.5em; color: var(--primary-light);
}
.article-body-section .article-inner .article-content ul,
.article-body-section .article-inner .article-content ol {
    margin: 1em 0; padding-left: 24px; list-style: disc;
}
.article-body-section .article-inner .article-content li { margin-bottom: 0.5em; }
.article-body-section .article-inner .article-content img {
    border-radius: var(--radius-sm); margin: 1.5em auto; box-shadow: var(--shadow);
}
.article-body-section .article-inner .article-content blockquote {
    border-left: 4px solid var(--accent); padding: 16px 24px; margin: 1.5em 0;
    background: rgba(240,185,11,0.06); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    color: var(--text-light); font-style: italic;
}
.article-body-section .article-inner .article-content a {
    color: var(--primary-light); border-bottom: 1px solid rgba(45,45,107,0.2);
}
.article-body-section .article-inner .article-content a:hover { color: var(--accent); border-color: var(--accent); }
.article-body-section .article-not-found {
    text-align: center; padding: 80px 20px;
}
.article-body-section .article-not-found i {
    font-size: 64px; color: var(--text-lighter); margin-bottom: 24px;
}
.article-body-section .article-not-found h2 {
    font-size: 28px; color: var(--text); margin-bottom: 12px;
}
.article-body-section .article-not-found p {
    color: var(--text-light); margin-bottom: 24px;
}
.article-body-section .article-not-found a {
    display: inline-block; padding: 12px 32px; border-radius: var(--radius-sm);
    background: var(--primary); color: var(--text-white); font-weight: 600;
}
.article-body-section .article-not-found a:hover { background: var(--primary-light); transform: translateY(-2px); }
@media (max-width: 768px) {
    .article-body-section { padding: 32px 0; }
    .article-body-section .article-inner { padding: 24px 20px; }
    .article-body-section .article-inner .article-content { font-size: 15px; }
}

/* ===== Article Tags & Share ===== */
.article-tags-section {
    padding: 0 0 40px; background: var(--bg); position: relative; z-index: 2;
}
.article-tags-section .article-inner {
    max-width: 800px; margin: 0 auto;
    background: var(--text-white); border-radius: var(--radius-lg);
    box-shadow: var(--shadow); padding: 24px 56px 32px;
    margin-top: -8px;
}
.article-tags-section .tags-wrap {
    display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px;
}
.article-tags-section .tags-list {
    display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
}
.article-tags-section .tags-list .tag-label {
    font-size: 14px; color: var(--text-light); margin-right: 4px;
}
.article-tags-section .tags-list a {
    display: inline-block; padding: 4px 14px; border-radius: 20px;
    background: var(--bg); border: 1px solid var(--border); font-size: 13px; color: var(--text-light);
}
.article-tags-section .tags-list a:hover { background: var(--accent); color: var(--primary-dark); border-color: var(--accent); }
.article-tags-section .share-list {
    display: flex; align-items: center; gap: 8px;
}
.article-tags-section .share-list span { font-size: 14px; color: var(--text-light); margin-right: 4px; }
.article-tags-section .share-list a {
    width: 36px; height: 36px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    background: var(--bg); border: 1px solid var(--border); color: var(--text-light); font-size: 15px;
}
.article-tags-section .share-list a:hover { background: var(--primary); color: var(--text-white); border-color: var(--primary); }
@media (max-width: 768px) {
    .article-tags-section .article-inner { padding: 16px 20px 24px; }
    .article-tags-section .tags-wrap { flex-direction: column; align-items: flex-start; }
}

/* ===== Related Posts ===== */
.related-posts {
    padding: 60px 0; background: var(--bg-alt);
}
.related-posts .section-title {
    text-align: center; margin-bottom: 40px;
}
.related-posts .section-title h2 {
    font-size: 30px; font-weight: 800; color: var(--text); margin-bottom: 8px;
}
.related-posts .section-title p {
    color: var(--text-light); font-size: 16px;
}
.related-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.related-card {
    background: var(--text-white); border-radius: var(--radius);
    overflow: hidden; box-shadow: var(--shadow); transition: var(--transition);
    display: flex; flex-direction: column;
}
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.related-card .card-img {
    width: 100%; aspect-ratio: 16/10; overflow: hidden; position: relative;
}
.related-card .card-img img {
    width: 100%; height: 100%; object-fit: cover; transition: var(--transition);
}
.related-card:hover .card-img img { transform: scale(1.05); }
.related-card .card-img .card-cat {
    position: absolute; top: 12px; left: 12px; z-index: 2;
    padding: 3px 12px; border-radius: 12px; background: rgba(240,185,11,0.9);
    color: var(--primary-dark); font-size: 12px; font-weight: 600;
}
.related-card .card-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.related-card .card-body h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; color: var(--text); }
.related-card .card-body h3 a { color: inherit; }
.related-card .card-body h3 a:hover { color: var(--primary-light); }
.related-card .card-body p {
    font-size: 14px; color: var(--text-light); line-height: 1.6; flex: 1; margin-bottom: 12px;
}
.related-card .card-body .card-date {
    font-size: 13px; color: var(--text-lighter); display: flex; align-items: center; gap: 6px;
}
.related-card .card-body .card-date i { font-size: 12px; }
@media (max-width: 1024px) {
    .related-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
    .related-grid { grid-template-columns: 1fr; }
    .related-posts { padding: 40px 0; }
    .related-posts .section-title h2 { font-size: 24px; }
}

/* ===== CTA Section ===== */
.cta-section {
    padding: 80px 0; background: var(--primary-dark);
    position: relative; overflow: hidden;
}
.cta-section::before {
    content: ''; position: absolute; inset: 0;
    background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
    opacity: 0.08; pointer-events: none;
}
.cta-section .container { position: relative; z-index: 2; text-align: center; }
.cta-section h2 {
    font-size: 34px; font-weight: 800; color: var(--text-white);
    margin-bottom: 16px;
}
.cta-section p {
    font-size: 18px; color: rgba(255,255,255,0.7);
    max-width: 600px; margin: 0 auto 32px;
}
.cta-section .cta-btn-group { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.cta-section .cta-btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 14px 36px; border-radius: var(--radius-sm);
    font-size: 16px; font-weight: 700; transition: var(--transition);
}
.cta-section .cta-btn-primary {
    background: linear-gradient(135deg, var(--accent), #f59e0b);
    color: var(--primary-dark); box-shadow: 0 4px 20px rgba(240,185,11,0.3);
}
.cta-section .cta-btn-primary:hover { transform: translateY(-3px); box-shadow: 0 8px 30px rgba(240,185,11,0.4); }
.cta-section .cta-btn-secondary {
    background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.15);
    color: var(--text-white);
}
.cta-section .cta-btn-secondary:hover { background: rgba(255,255,255,0.15); transform: translateY(-3px); }
@media (max-width: 768px) {
    .cta-section { padding: 60px 0; }
    .cta-section h2 { font-size: 26px; }
    .cta-section p { font-size: 16px; }
}

/* ===== Footer ===== */
.site-footer {
    background: var(--primary-dark); border-top: 1px solid rgba(240,185,11,0.08);
    padding: 60px 0 0;
}
.site-footer .footer-grid {
    display: grid; grid-template-columns: 1.8fr 1fr 1fr 1fr; gap: 40px;
    padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.06);
}
.site-footer .footer-brand .logo {
    font-size: 22px; margin-bottom: 16px;
}
.site-footer .footer-brand p {
    font-size: 14px; color: rgba(255,255,255,0.5); line-height: 1.7; max-width: 360px;
}
.site-footer .footer-col h4 {
    font-size: 16px; font-weight: 700; color: var(--text-white);
    margin-bottom: 16px; position: relative; padding-bottom: 8px;
}
.site-footer .footer-col h4::after {
    content: ''; position: absolute; bottom: 0; left: 0;
    width: 28px; height: 2px; background: var(--accent); border-radius: 2px;
}
.site-footer .footer-col a {
    display: block; padding: 6px 0; font-size: 14px;
    color: rgba(255,255,255,0.45); transition: var(--transition);
}
.site-footer .footer-col a:hover { color: var(--accent); padding-left: 4px; }
.site-footer .footer-col a i { width: 20px; margin-right: 6px; }
.site-footer .footer-bottom {
    display: flex; justify-content: space-between; align-items: center;
    padding: 20px 0; flex-wrap: wrap; gap: 12px;
    font-size: 13px; color: rgba(255,255,255,0.3);
}
.site-footer .footer-bottom a { color: rgba(255,255,255,0.4); }
.site-footer .footer-bottom a:hover { color: var(--accent); }
@media (max-width: 1024px) {
    .site-footer .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 640px) {
    .site-footer .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .site-footer { padding: 40px 0 0; }
    .site-footer .footer-bottom { flex-direction: column; text-align: center; }
}

/* ===== Back to Top ===== */
.back-top {
    position: fixed; bottom: 32px; right: 32px; z-index: 999;
    width: 48px; height: 48px; border-radius: 50%;
    background: var(--primary); color: var(--text-white);
    display: flex; align-items: center; justify-content: center;
    font-size: 18px; box-shadow: var(--shadow); cursor: pointer;
    opacity: 0; visibility: hidden; transition: var(--transition);
    border: 1px solid rgba(240,185,11,0.15);
}
.back-top.show { opacity: 1; visibility: visible; }
.back-top:hover { background: var(--accent); color: var(--primary-dark); transform: translateY(-4px); box-shadow: var(--shadow-hover); }

/* ===== Focus Visible ===== */
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }