/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --c-primary: #1a1a2e;
            --c-primary-light: #16213e;
            --c-accent: #e94560;
            --c-accent-hover: #d63850;
            --c-accent-glow: rgba(233, 69, 96, 0.35);
            --c-gold: #f5a623;
            --c-gold-light: #f7c35c;
            --c-dark: #0f0f1a;
            --c-dark-card: #1a1a2e;
            --c-dark-surface: #222240;
            --c-body-bg: #0a0a14;
            --c-text: #f0f0f5;
            --c-text-secondary: #a8a8c8;
            --c-text-muted: #6a6a8a;
            --c-border: rgba(255, 255, 255, 0.08);
            --c-border-light: rgba(255, 255, 255, 0.04);
            --c-white: #ffffff;
            --c-nav-bg: rgba(255, 255, 255, 0.97);
            --c-nav-text: #1a1a2e;
            --c-nav-text-muted: #5a5a7a;
            --c-nav-shadow: rgba(0, 0, 0, 0.06);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
            --shadow-glow: 0 0 40px rgba(233, 69, 96, 0.15);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --container-max: 1200px;
        }

        /* ===== 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(--c-body-bg);
            color: var(--c-text);
            line-height: 1.7;
            font-size: 16px;
            overflow-x: hidden;
        }
        a { color: var(--c-accent); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--c-accent-hover); }
        img { max-width: 100%; height: auto; display: block; }
        button, input, textarea { font-family: inherit; font-size: inherit; }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.25; color: var(--c-white); }
        p { margin-bottom: 0; }
        .container { max-width: var(--container-max); padding-left: 20px; padding-right: 20px; margin: 0 auto; width: 100%; }

        /* ===== 滚动条 ===== */
        ::-webkit-scrollbar { width: 8px; }
        ::-webkit-scrollbar-track { background: var(--c-dark); }
        ::-webkit-scrollbar-thumb { background: var(--c-accent); border-radius: 4px; }
        ::-webkit-scrollbar-thumb:hover { background: var(--c-accent-hover); }

        /* ===== 导航 ===== */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1050;
            background: var(--c-nav-bg);
            box-shadow: 0 2px 24px var(--c-nav-shadow);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0,0,0,0.04);
            transition: var(--transition);
        }
        .site-header .container { display: flex; align-items: center; justify-content: space-between; height: 68px; }
        .header-logo { display: flex; align-items: center; gap: 10px; }
        .header-logo .logo-icon {
            width: 36px; height: 36px; border-radius: 10px;
            background: linear-gradient(135deg, var(--c-accent), var(--c-primary));
            display: flex; align-items: center; justify-content: center;
            color: #fff; font-size: 18px; font-weight: 800;
            box-shadow: 0 4px 12px var(--c-accent-glow);
        }
        .header-logo .logo-text {
            font-size: 20px; font-weight: 700; color: var(--c-nav-text);
            letter-spacing: 0.5px;
        }
        .header-logo .logo-text span { color: var(--c-accent); }
        .header-nav { display: flex; align-items: center; gap: 6px; }
        .header-nav a {
            padding: 8px 18px; border-radius: var(--radius-sm);
            font-size: 15px; font-weight: 500; color: var(--c-nav-text-muted);
            transition: var(--transition); position: relative;
        }
        .header-nav a:hover { color: var(--c-accent); background: rgba(233,69,96,0.06); }
        .header-nav a.active {
            color: var(--c-accent); background: rgba(233,69,96,0.1);
            font-weight: 600;
        }
        .header-nav a.active::after {
            content: ''; position: absolute; bottom: 2px; left: 50%; transform: translateX(-50%);
            width: 20px; height: 3px; border-radius: 2px; background: var(--c-accent);
        }
        .header-actions { display: flex; align-items: center; gap: 12px; }
        .header-search {
            display: flex; align-items: center; background: rgba(0,0,0,0.04);
            border-radius: 50px; padding: 0 16px; height: 40px;
            border: 1px solid transparent; transition: var(--transition);
        }
        .header-search:focus-within { border-color: var(--c-accent); background: #fff; box-shadow: 0 0 0 3px var(--c-accent-glow); }
        .header-search i { color: var(--c-nav-text-muted); font-size: 14px; }
        .header-search input {
            border: none; background: transparent; outline: none;
            padding: 0 10px; font-size: 14px; color: var(--c-nav-text); width: 140px;
        }
        .header-search input::placeholder { color: var(--c-nav-text-muted); }
        .header-cta {
            padding: 9px 24px; border-radius: 50px; font-size: 14px; font-weight: 600;
            background: linear-gradient(135deg, var(--c-accent), var(--c-primary));
            color: #fff; border: none; cursor: pointer; transition: var(--transition);
            box-shadow: 0 4px 16px var(--c-accent-glow); white-space: nowrap;
        }
        .header-cta:hover { transform: translateY(-2px); box-shadow: 0 8px 28px var(--c-accent-glow); color: #fff; }
        .header-mobile-toggle { display: none; background: none; border: none; color: var(--c-nav-text); font-size: 24px; cursor: pointer; padding: 4px; }

        /* ===== 移动端导航 ===== */
        @media (max-width: 820px) {
            .site-header .container { height: 60px; }
            .header-nav { display: none; position: absolute; top: 60px; left: 0; right: 0; background: var(--c-nav-bg); flex-direction: column; padding: 16px 20px; gap: 4px; box-shadow: 0 12px 40px rgba(0,0,0,0.1); border-top: 1px solid rgba(0,0,0,0.04); }
            .header-nav.open { display: flex; }
            .header-nav a { padding: 12px 16px; width: 100%; border-radius: var(--radius-sm); font-size: 16px; }
            .header-nav a.active::after { display: none; }
            .header-nav a.active { background: rgba(233,69,96,0.1); }
            .header-search { display: none; }
            .header-cta { padding: 8px 18px; font-size: 13px; }
            .header-mobile-toggle { display: block; }
            .header-logo .logo-text { font-size: 18px; }
        }
        @media (max-width: 480px) {
            .header-cta { padding: 7px 14px; font-size: 12px; }
            .header-logo .logo-text { font-size: 16px; }
            .header-logo .logo-icon { width: 30px; height: 30px; font-size: 15px; }
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative; margin-top: 68px; min-height: 92vh;
            display: flex; align-items: center; overflow: hidden;
            background: var(--c-dark);
        }
        .hero-bg {
            position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            transform: scale(1.02); filter: brightness(0.4) saturate(1.1);
            transition: transform 0.6s ease;
        }
        .hero-section:hover .hero-bg { transform: scale(1.04); }
        .hero-overlay {
            position: absolute; inset: 0;
            background: linear-gradient(135deg, rgba(10,10,20,0.85) 0%, rgba(26,26,46,0.6) 50%, rgba(10,10,20,0.85) 100%);
        }
        .hero-section .container { position: relative; z-index: 2; padding-top: 60px; padding-bottom: 60px; }
        .hero-badge {
            display: inline-flex; align-items: center; gap: 8px;
            padding: 6px 18px; border-radius: 50px;
            background: rgba(233,69,96,0.18); border: 1px solid rgba(233,69,96,0.3);
            color: var(--c-accent); font-size: 14px; font-weight: 500;
            backdrop-filter: blur(4px); margin-bottom: 24px;
        }
        .hero-badge i { font-size: 12px; }
        .hero-title {
            font-size: clamp(2.6rem, 7vw, 4.2rem); font-weight: 800;
            color: var(--c-white); line-height: 1.1; margin-bottom: 20px;
            letter-spacing: -0.5px;
        }
        .hero-title .highlight { background: linear-gradient(135deg, var(--c-accent), var(--c-gold-light)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
        .hero-desc {
            font-size: clamp(1rem, 2vw, 1.2rem); color: var(--c-text-secondary);
            max-width: 620px; margin-bottom: 32px; line-height: 1.8;
        }
        .hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }
        .hero-actions .btn-primary-custom {
            padding: 14px 36px; border-radius: 50px; font-size: 16px; font-weight: 600;
            background: linear-gradient(135deg, var(--c-accent), #c73050);
            color: #fff; border: none; cursor: pointer; transition: var(--transition);
            box-shadow: 0 6px 24px var(--c-accent-glow); display: inline-flex; align-items: center; gap: 10px;
        }
        .hero-actions .btn-primary-custom:hover { transform: translateY(-3px); box-shadow: 0 12px 40px var(--c-accent-glow); color: #fff; }
        .hero-actions .btn-outline-custom {
            padding: 14px 36px; border-radius: 50px; font-size: 16px; font-weight: 600;
            background: transparent; color: var(--c-white); border: 2px solid rgba(255,255,255,0.25);
            cursor: pointer; transition: var(--transition); display: inline-flex; align-items: center; gap: 10px;
        }
        .hero-actions .btn-outline-custom:hover { border-color: var(--c-accent); color: var(--c-accent); background: rgba(233,69,96,0.08); }
        .hero-stats {
            display: flex; flex-wrap: wrap; gap: 40px; margin-top: 48px;
            padding-top: 32px; border-top: 1px solid var(--c-border);
        }
        .hero-stat-item { text-align: left; }
        .hero-stat-item .num { font-size: 2rem; font-weight: 800; color: var(--c-white); line-height: 1; }
        .hero-stat-item .num .accent { color: var(--c-accent); }
        .hero-stat-item .label { font-size: 14px; color: var(--c-text-muted); margin-top: 4px; }

        @media (max-width: 768px) {
            .hero-section { min-height: 70vh; margin-top: 60px; }
            .hero-section .container { padding-top: 40px; padding-bottom: 40px; }
            .hero-stats { gap: 24px; margin-top: 32px; padding-top: 24px; }
            .hero-stat-item .num { font-size: 1.6rem; }
            .hero-actions .btn-primary-custom, .hero-actions .btn-outline-custom { padding: 12px 28px; font-size: 15px; }
        }
        @media (max-width: 480px) {
            .hero-section { min-height: 60vh; }
            .hero-badge { font-size: 12px; padding: 4px 14px; }
            .hero-stats { gap: 16px; }
            .hero-stat-item .num { font-size: 1.3rem; }
        }

        /* ===== 通用板块 ===== */
        .section-padding { padding: 80px 0; }
        .section-padding-sm { padding: 56px 0; }
        .section-title-wrap { text-align: center; margin-bottom: 48px; }
        .section-title-wrap h2 {
            font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 700;
            color: var(--c-white); margin-bottom: 12px;
        }
        .section-title-wrap h2 i { color: var(--c-accent); margin-right: 8px; }
        .section-title-wrap p {
            color: var(--c-text-secondary); font-size: 1.05rem;
            max-width: 600px; margin: 0 auto; line-height: 1.7;
        }
        .section-divider {
            width: 60px; height: 4px; border-radius: 2px;
            background: linear-gradient(90deg, var(--c-accent), var(--c-gold));
            margin: 16px auto 24px;
        }
        .bg-dark-surface { background: var(--c-dark-card); }
        .bg-darker { background: var(--c-dark); }

        @media (max-width: 768px) {
            .section-padding { padding: 48px 0; }
            .section-padding-sm { padding: 32px 0; }
            .section-title-wrap { margin-bottom: 32px; }
        }

        /* ===== 平台简介 ===== */
        .intro-section {
            background: linear-gradient(135deg, var(--c-dark-card) 0%, var(--c-primary-light) 100%);
            position: relative; overflow: hidden;
        }
        .intro-section::before {
            content: ''; position: absolute; top: -50%; right: -20%;
            width: 500px; height: 500px; border-radius: 50%;
            background: radial-gradient(circle, rgba(233,69,96,0.05) 0%, transparent 70%);
            pointer-events: none;
        }
        .intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
        .intro-content h2 { font-size: clamp(1.6rem, 3.5vw, 2.2rem); margin-bottom: 20px; }
        .intro-content p { color: var(--c-text-secondary); line-height: 1.8; margin-bottom: 16px; font-size: 1.02rem; }
        .intro-features { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 24px; }
        .intro-feature-item { display: flex; align-items: center; gap: 12px; padding: 12px 16px; background: rgba(255,255,255,0.03); border-radius: var(--radius-sm); border: 1px solid var(--c-border); }
        .intro-feature-item i { color: var(--c-accent); font-size: 16px; width: 20px; }
        .intro-feature-item span { color: var(--c-text); font-size: 15px; font-weight: 500; }
        .intro-image { position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-card); }
        .intro-image img { width: 100%; height: 100%; object-fit: cover; min-height: 320px; border-radius: var(--radius-lg); }

        @media (max-width: 820px) {
            .intro-grid { grid-template-columns: 1fr; gap: 32px; }
            .intro-image { order: -1; }
            .intro-image img { min-height: 240px; }
            .intro-features { grid-template-columns: 1fr; }
        }
        @media (max-width: 480px) {
            .intro-features { grid-template-columns: 1fr; }
        }

        /* ===== 分类入口 / 服务卡片 ===== */
        .categories-section { background: var(--c-body-bg); }
        .category-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
        .category-card {
            background: var(--c-dark-card); border-radius: var(--radius-md);
            overflow: hidden; border: 1px solid var(--c-border);
            transition: var(--transition); cursor: pointer;
            box-shadow: 0 4px 20px rgba(0,0,0,0.2);
        }
        .category-card:hover { transform: translateY(-6px); border-color: var(--c-accent); box-shadow: var(--shadow-card), var(--shadow-glow); }
        .category-card .card-img { height: 180px; overflow: hidden; position: relative; }
        .category-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
        .category-card:hover .card-img img { transform: scale(1.06); }
        .category-card .card-img .card-overlay {
            position: absolute; inset: 0;
            background: linear-gradient(0deg, rgba(10,10,20,0.7) 0%, transparent 50%);
        }
        .category-card .card-body { padding: 20px 22px 24px; }
        .category-card .card-body h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 8px; color: var(--c-white); }
        .category-card .card-body p { color: var(--c-text-secondary); font-size: 14px; line-height: 1.6; }
        .category-card .card-body .card-tag {
            display: inline-block; padding: 3px 12px; border-radius: 50px;
            font-size: 12px; font-weight: 500; background: rgba(233,69,96,0.12);
            color: var(--c-accent); margin-top: 12px;
        }

        @media (max-width: 600px) {
            .category-grid { grid-template-columns: 1fr; }
            .category-card .card-img { height: 160px; }
        }

        /* ===== 平台优势 / 数据统计 ===== */
        .stats-section {
            background: linear-gradient(135deg, var(--c-primary-light), var(--c-dark));
            position: relative; overflow: hidden;
        }
        .stats-section::after {
            content: ''; position: absolute; bottom: -30%; left: -10%;
            width: 400px; height: 400px; border-radius: 50%;
            background: radial-gradient(circle, rgba(233,69,96,0.04) 0%, transparent 70%);
            pointer-events: none;
        }
        .stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
        .stat-card {
            background: rgba(255,255,255,0.03); border: 1px solid var(--c-border);
            border-radius: var(--radius-md); padding: 32px 16px;
            transition: var(--transition); backdrop-filter: blur(4px);
        }
        .stat-card:hover { border-color: var(--c-accent); transform: translateY(-4px); background: rgba(233,69,96,0.04); }
        .stat-card .stat-icon { font-size: 32px; color: var(--c-accent); margin-bottom: 12px; }
        .stat-card .stat-num { font-size: 2.2rem; font-weight: 800; color: var(--c-white); line-height: 1.2; }
        .stat-card .stat-num .accent { color: var(--c-accent); }
        .stat-card .stat-label { font-size: 14px; color: var(--c-text-secondary); margin-top: 6px; }

        @media (max-width: 820px) {
            .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
            .stat-card { padding: 24px 12px; }
            .stat-card .stat-num { font-size: 1.8rem; }
        }
        @media (max-width: 480px) {
            .stats-grid { grid-template-columns: 1fr 1fr; }
            .stat-card .stat-num { font-size: 1.5rem; }
        }

        /* ===== 最新资讯 / 内容列表 ===== */
        .news-section { background: var(--c-dark-card); }
        .news-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 24px; }
        .news-card {
            background: var(--c-dark-surface); border-radius: var(--radius-md);
            overflow: hidden; border: 1px solid var(--c-border);
            transition: var(--transition);
        }
        .news-card:hover { transform: translateY(-4px); border-color: var(--c-accent); box-shadow: var(--shadow-card); }
        .news-card .news-img { height: 180px; overflow: hidden; position: relative; }
        .news-card .news-img img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
        .news-card:hover .news-img img { transform: scale(1.05); }
        .news-card .news-img .news-cat {
            position: absolute; top: 12px; left: 12px;
            padding: 4px 14px; border-radius: 50px; font-size: 12px; font-weight: 600;
            background: var(--c-accent); color: #fff; box-shadow: 0 4px 12px rgba(233,69,96,0.3);
        }
        .news-card .news-body { padding: 18px 20px 22px; }
        .news-card .news-body h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 8px; color: var(--c-white); line-height: 1.4; }
        .news-card .news-body h3 a { color: var(--c-white); }
        .news-card .news-body h3 a:hover { color: var(--c-accent); }
        .news-card .news-body p { color: var(--c-text-secondary); font-size: 14px; line-height: 1.6; margin-bottom: 12px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .news-card .news-meta { display: flex; align-items: center; gap: 16px; font-size: 13px; color: var(--c-text-muted); }
        .news-card .news-meta i { margin-right: 4px; font-size: 12px; }
        .news-empty { text-align: center; padding: 48px 20px; color: var(--c-text-muted); font-size: 1.05rem; grid-column: 1 / -1; }
        .news-empty i { font-size: 40px; display: block; margin-bottom: 16px; color: var(--c-text-muted); opacity: 0.4; }

        @media (max-width: 600px) {
            .news-grid { grid-template-columns: 1fr; }
            .news-card .news-img { height: 160px; }
        }

        /* ===== 使用流程 ===== */
        .process-section { background: var(--c-body-bg); }
        .process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; }
        .process-step {
            text-align: center; padding: 32px 16px; background: var(--c-dark-card);
            border-radius: var(--radius-md); border: 1px solid var(--c-border);
            position: relative; transition: var(--transition);
        }
        .process-step:hover { border-color: var(--c-accent); transform: translateY(-4px); box-shadow: var(--shadow-card); }
        .process-step .step-num {
            width: 48px; height: 48px; border-radius: 50%;
            background: linear-gradient(135deg, var(--c-accent), var(--c-primary));
            color: #fff; font-size: 20px; font-weight: 700;
            display: flex; align-items: center; justify-content: center;
            margin: 0 auto 16px; box-shadow: 0 4px 16px var(--c-accent-glow);
        }
        .process-step h4 { font-size: 1.05rem; font-weight: 600; margin-bottom: 8px; color: var(--c-white); }
        .process-step p { color: var(--c-text-secondary); font-size: 14px; line-height: 1.6; }
        .process-connector { display: none; }

        @media (max-width: 820px) {
            .process-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
        }
        @media (max-width: 480px) {
            .process-grid { grid-template-columns: 1fr; }
            .process-step { padding: 24px 12px; }
        }

        /* ===== FAQ ===== */
        .faq-section { background: var(--c-dark-card); }
        .faq-list { max-width: 780px; margin: 0 auto; }
        .faq-item {
            background: var(--c-dark-surface); border-radius: var(--radius-sm);
            border: 1px solid var(--c-border); margin-bottom: 12px;
            overflow: hidden; transition: var(--transition);
        }
        .faq-item:hover { border-color: rgba(233,69,96,0.2); }
        .faq-question {
            padding: 18px 24px; display: flex; align-items: center; justify-content: space-between;
            cursor: pointer; font-weight: 500; font-size: 1rem; color: var(--c-white);
            transition: var(--transition); user-select: none;
        }
        .faq-question:hover { background: rgba(255,255,255,0.02); }
        .faq-question i { color: var(--c-accent); transition: var(--transition); font-size: 14px; }
        .faq-item.open .faq-question i { transform: rotate(180deg); }
        .faq-answer {
            max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px; color: var(--c-text-secondary); font-size: 15px; line-height: 1.7;
        }
        .faq-item.open .faq-answer { max-height: 300px; padding: 0 24px 20px; }

        @media (max-width: 600px) {
            .faq-question { padding: 14px 16px; font-size: 0.95rem; }
            .faq-answer { padding: 0 16px; font-size: 14px; }
            .faq-item.open .faq-answer { padding: 0 16px 16px; }
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--c-primary-light), var(--c-dark));
            position: relative; overflow: hidden; text-align: center;
        }
        .cta-section::before {
            content: ''; position: absolute; top: -50%; left: 50%; transform: translateX(-50%);
            width: 600px; height: 600px; border-radius: 50%;
            background: radial-gradient(circle, rgba(233,69,96,0.06) 0%, transparent 70%);
            pointer-events: none;
        }
        .cta-section h2 { font-size: clamp(1.6rem, 3.5vw, 2.2rem); margin-bottom: 16px; }
        .cta-section p { color: var(--c-text-secondary); max-width: 560px; margin: 0 auto 28px; font-size: 1.05rem; line-height: 1.7; }
        .cta-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; }
        .cta-actions .btn-cta-primary {
            padding: 14px 40px; border-radius: 50px; font-size: 16px; font-weight: 600;
            background: linear-gradient(135deg, var(--c-accent), #c73050);
            color: #fff; border: none; cursor: pointer; transition: var(--transition);
            box-shadow: 0 6px 24px var(--c-accent-glow); display: inline-flex; align-items: center; gap: 10px;
        }
        .cta-actions .btn-cta-primary:hover { transform: translateY(-3px); box-shadow: 0 12px 40px var(--c-accent-glow); color: #fff; }
        .cta-actions .btn-cta-outline {
            padding: 14px 40px; border-radius: 50px; font-size: 16px; font-weight: 600;
            background: transparent; color: var(--c-white); border: 2px solid rgba(255,255,255,0.2);
            cursor: pointer; transition: var(--transition); display: inline-flex; align-items: center; gap: 10px;
        }
        .cta-actions .btn-cta-outline:hover { border-color: var(--c-accent); color: var(--c-accent); background: rgba(233,69,96,0.06); }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--c-dark); border-top: 1px solid var(--c-border);
            padding: 48px 0 24px;
        }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 32px; }
        .footer-brand .footer-logo { font-size: 20px; font-weight: 700; color: var(--c-white); margin-bottom: 12px; display: flex; align-items: center; gap: 10px; }
        .footer-brand .footer-logo .logo-icon-mini { width: 32px; height: 32px; border-radius: 8px; background: linear-gradient(135deg, var(--c-accent), var(--c-primary)); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 16px; font-weight: 800; }
        .footer-brand p { color: var(--c-text-muted); font-size: 14px; line-height: 1.7; max-width: 320px; }
        .footer-brand .social-links { display: flex; gap: 12px; margin-top: 16px; }
        .footer-brand .social-links a { width: 36px; height: 36px; border-radius: 50%; background: rgba(255,255,255,0.04); border: 1px solid var(--c-border); display: flex; align-items: center; justify-content: center; color: var(--c-text-muted); font-size: 15px; transition: var(--transition); }
        .footer-brand .social-links a:hover { background: var(--c-accent); color: #fff; border-color: var(--c-accent); transform: translateY(-2px); }
        .footer-col h4 { font-size: 15px; font-weight: 600; color: var(--c-white); margin-bottom: 16px; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a { color: var(--c-text-muted); font-size: 14px; transition: var(--transition); }
        .footer-col ul li a:hover { color: var(--c-accent); padding-left: 4px; }
        .footer-bottom { border-top: 1px solid var(--c-border); padding-top: 20px; display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 12px; font-size: 13px; color: var(--c-text-muted); }
        .footer-bottom a { color: var(--c-text-muted); }
        .footer-bottom a:hover { color: var(--c-accent); }

        @media (max-width: 820px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
            .footer-brand { grid-column: 1 / -1; }
        }
        @media (max-width: 480px) {
            .footer-grid { grid-template-columns: 1fr; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }

        /* ===== 辅助 ===== */
        .text-accent { color: var(--c-accent); }
        .text-gold { color: var(--c-gold); }
        .text-muted-custom { color: var(--c-text-muted); }
        .mb-16 { margin-bottom: 16px; }
        .mb-24 { margin-bottom: 24px; }
        .mb-32 { margin-bottom: 32px; }
        .mt-16 { margin-top: 16px; }
        .mt-24 { margin-top: 24px; }
        .gap-8 { gap: 8px; }

        /* ===== 返回顶部 ===== */
        .back-to-top {
            position: fixed; bottom: 30px; right: 30px; z-index: 999;
            width: 44px; height: 44px; border-radius: 50%;
            background: linear-gradient(135deg, var(--c-accent), var(--c-primary));
            color: #fff; border: none; font-size: 18px; cursor: pointer;
            box-shadow: 0 4px 20px var(--c-accent-glow);
            transition: var(--transition); opacity: 0; visibility: hidden;
            display: flex; align-items: center; justify-content: center;
        }
        .back-to-top.visible { opacity: 1; visibility: visible; }
        .back-to-top:hover { transform: translateY(-4px); box-shadow: 0 8px 32px var(--c-accent-glow); }

        @media (max-width: 480px) {
            .back-to-top { width: 38px; height: 38px; font-size: 15px; bottom: 20px; right: 20px; }
        }

/* roulang page: category1 */
/* ===== Design Variables ===== */
        :root {
            --primary: #1e3a5f;
            --primary-light: #2a5298;
            --primary-dark: #0f2440;
            --secondary: #d4a84b;
            --secondary-light: #e8c56b;
            --secondary-dark: #b8912e;
            --accent: #e85d3a;
            --bg-body: #f8f7f4;
            --bg-card: #ffffff;
            --bg-dark: #1a2a3a;
            --bg-soft: #f0ede8;
            --text-primary: #1e2a3a;
            --text-secondary: #4a5a6a;
            --text-muted: #8a9aaa;
            --text-light: #f0f4f8;
            --border-color: #e0ddd8;
            --border-light: #f0ede8;
            --shadow-sm: 0 2px 8px rgba(30, 42, 58, 0.06);
            --shadow-md: 0 8px 24px rgba(30, 42, 58, 0.08);
            --shadow-lg: 0 16px 48px rgba(30, 42, 58, 0.12);
            --shadow-xl: 0 24px 64px rgba(30, 42, 58, 0.16);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, 'Noto Sans SC', 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-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;
            padding-top: var(--nav-height);
        }

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

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

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

        ul,
        ol {
            list-style: none;
        }

        /* ===== Container ===== */
        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== Typography ===== */
        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.75rem;
            letter-spacing: -0.02em;
            line-height: 1.25;
        }

        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto 2.5rem auto;
            line-height: 1.6;
        }

        .section-header {
            text-align: center;
            margin-bottom: 3rem;
        }

        .section-header .section-title::after {
            content: '';
            display: block;
            width: 60px;
            height: 3px;
            background: var(--secondary);
            margin: 0.75rem auto 0;
            border-radius: 2px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--nav-height);
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
            transition: var(--transition);
        }

        .site-header .container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            padding: 0 20px;
        }

        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
            text-decoration: none;
            flex-shrink: 0;
        }
        .header-logo:hover {
            color: var(--primary-light);
        }
        .header-logo .logo-icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.1rem;
            font-weight: 700;
            flex-shrink: 0;
        }

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

        .header-nav a {
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }
        .header-nav a:hover {
            color: var(--primary);
            background: rgba(30, 58, 95, 0.05);
        }
        .header-nav a.active {
            color: var(--primary);
            background: rgba(30, 58, 95, 0.08);
            font-weight: 600;
        }
        .header-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--secondary);
            border-radius: 2px;
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .header-search {
            display: flex;
            align-items: center;
            background: var(--bg-soft);
            border-radius: 24px;
            padding: 0 12px;
            border: 1px solid transparent;
            transition: var(--transition);
        }
        .header-search:focus-within {
            border-color: var(--secondary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(212, 168, 75, 0.15);
        }
        .header-search input {
            border: none;
            background: transparent;
            padding: 8px 8px 8px 4px;
            font-size: 0.9rem;
            color: var(--text-primary);
            outline: none;
            min-width: 140px;
        }
        .header-search input::placeholder {
            color: var(--text-muted);
        }
        .header-search button {
            border: none;
            background: transparent;
            color: var(--text-muted);
            padding: 4px 4px 4px 8px;
            cursor: pointer;
            transition: var(--transition);
        }
        .header-search button:hover {
            color: var(--primary);
        }

        .header-cta {
            background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
            color: #fff;
            border: none;
            padding: 10px 24px;
            border-radius: 24px;
            font-weight: 600;
            font-size: 0.9rem;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }
        .header-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(212, 168, 75, 0.35);
            color: #fff;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 4px;
        }
        .nav-toggle span {
            display: block;
            width: 26px;
            height: 2.5px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: var(--transition);
        }

        /* ===== Page Banner (Hero inner) ===== */
        .page-banner {
            position: relative;
            padding: 100px 0 80px;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary), var(--primary-light));
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            opacity: 0.2;
            mix-blend-mode: overlay;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to top, var(--bg-body), transparent);
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-banner h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 1rem;
            letter-spacing: -0.02em;
            line-height: 1.2;
            text-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
        }
        .page-banner p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.6;
        }
        .page-banner .banner-badge {
            display: inline-block;
            background: rgba(212, 168, 75, 0.2);
            color: var(--secondary-light);
            padding: 6px 18px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 1.25rem;
            backdrop-filter: blur(4px);
            border: 1px solid rgba(212, 168, 75, 0.25);
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-wrap {
            background: transparent;
            padding: 16px 0 0;
            margin-top: -8px;
            position: relative;
            z-index: 3;
        }
        .breadcrumb-wrap .breadcrumb {
            background: transparent;
            padding: 0;
            margin: 0;
            font-size: 0.9rem;
        }
        .breadcrumb-wrap .breadcrumb-item a {
            color: var(--text-muted);
        }
        .breadcrumb-wrap .breadcrumb-item a:hover {
            color: var(--primary);
        }
        .breadcrumb-wrap .breadcrumb-item.active {
            color: var(--text-secondary);
        }

        /* ===== Guide Categories ===== */
        .guide-categories {
            padding: 60px 0 40px;
        }
        .guide-categories .row {
            --bs-gutter-y: 24px;
        }
        .guide-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            height: 100%;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .guide-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 0;
            background: var(--secondary);
            transition: var(--transition);
            border-radius: 0 0 2px 2px;
        }
        .guide-card:hover {
            border-color: var(--secondary);
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .guide-card:hover::before {
            height: 100%;
        }
        .guide-card .card-icon {
            width: 52px;
            height: 52px;
            border-radius: var(--radius-sm);
            background: linear-gradient(135deg, rgba(30, 58, 95, 0.08), rgba(42, 82, 152, 0.08));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--primary);
            margin-bottom: 1rem;
            transition: var(--transition);
        }
        .guide-card:hover .card-icon {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
        }
        .guide-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
        }
        .guide-card p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 1rem;
        }
        .guide-card .card-tag {
            display: inline-block;
            padding: 3px 12px;
            border-radius: 12px;
            background: var(--bg-soft);
            font-size: 0.8rem;
            color: var(--text-muted);
            font-weight: 500;
        }
        .guide-card .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--primary-light);
            margin-top: 0.5rem;
            transition: var(--transition);
        }
        .guide-card .card-link i {
            transition: var(--transition);
            font-size: 0.8rem;
        }
        .guide-card .card-link:hover {
            color: var(--primary);
        }
        .guide-card .card-link:hover i {
            transform: translateX(4px);
        }

        /* ===== Featured Content ===== */
        .featured-content {
            padding: 60px 0;
            background: var(--bg-soft);
        }
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 28px;
        }
        .featured-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .featured-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
            border-color: var(--secondary);
        }
        .featured-item .fi-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            display: block;
        }
        .featured-item .fi-body {
            padding: 20px 24px 24px;
        }
        .featured-item .fi-badge {
            display: inline-block;
            padding: 3px 14px;
            border-radius: 12px;
            background: rgba(212, 168, 75, 0.12);
            color: var(--secondary-dark);
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }
        .featured-item h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.4rem;
        }
        .featured-item p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 0.75rem;
        }
        .featured-item .fi-meta {
            font-size: 0.82rem;
            color: var(--text-muted);
            display: flex;
            gap: 16px;
        }
        .featured-item .fi-meta i {
            margin-right: 4px;
        }

        /* ===== Stats Section ===== */
        .stats-section {
            padding: 60px 0;
            background: var(--bg-card);
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .stat-item {
            text-align: center;
            padding: 32px 16px;
            border-radius: var(--radius-md);
            background: var(--bg-soft);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .stat-item:hover {
            background: var(--bg-card);
            border-color: var(--secondary);
            box-shadow: var(--shadow-sm);
        }
        .stat-item .stat-number {
            font-size: 2.6rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
            margin-bottom: 0.25rem;
        }
        .stat-item .stat-label {
            font-size: 0.95rem;
            color: var(--text-secondary);
            font-weight: 500;
        }
        .stat-item .stat-icon {
            font-size: 1.8rem;
            color: var(--secondary);
            margin-bottom: 0.75rem;
        }

        /* ===== Process / Flow ===== */
        .process-section {
            padding: 60px 0;
            background: var(--bg-body);
        }
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }
        .process-steps::before {
            content: '';
            position: absolute;
            top: 40px;
            left: 10%;
            right: 10%;
            height: 2px;
            background: var(--border-color);
            z-index: 0;
        }
        .process-step {
            text-align: center;
            position: relative;
            z-index: 1;
            background: var(--bg-body);
            padding: 0 8px;
        }
        .process-step .step-circle {
            width: 80px;
            height: 80px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            font-weight: 700;
            margin: 0 auto 1rem;
            box-shadow: 0 8px 24px rgba(30, 58, 95, 0.2);
            transition: var(--transition);
        }
        .process-step:hover .step-circle {
            transform: scale(1.05);
            box-shadow: 0 12px 32px rgba(30, 58, 95, 0.3);
        }
        .process-step h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.3rem;
        }
        .process-step p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.5;
            max-width: 220px;
            margin: 0 auto;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 60px 0;
            background: var(--bg-soft);
        }
        .faq-accordion .accordion-item {
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm) !important;
            margin-bottom: 12px;
            overflow: hidden;
            background: var(--bg-card);
        }
        .faq-accordion .accordion-button {
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-primary);
            padding: 18px 24px;
            background: var(--bg-card);
            box-shadow: none;
            border-bottom: 1px solid transparent;
        }
        .faq-accordion .accordion-button:not(.collapsed) {
            color: var(--primary);
            background: var(--bg-card);
            border-bottom-color: var(--border-light);
        }
        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            border-color: var(--secondary);
        }
        .faq-accordion .accordion-button::after {
            background-size: 1rem;
            opacity: 0.6;
        }
        .faq-accordion .accordion-body {
            padding: 16px 24px 20px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 72px 0;
            background: linear-gradient(135deg, var(--primary-dark), var(--primary), var(--primary-light));
            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: 0.1;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1rem;
        }
        .cta-section p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0 auto 2rem;
        }
        .cta-section .cta-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 36px;
            border-radius: 28px;
            background: var(--secondary);
            color: #fff;
            font-weight: 700;
            font-size: 1.05rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }
        .cta-section .cta-btn:hover {
            background: var(--secondary-light);
            transform: translateY(-3px);
            box-shadow: 0 12px 32px rgba(212, 168, 75, 0.35);
            color: #fff;
        }
        .cta-section .cta-btn i {
            transition: var(--transition);
        }
        .cta-section .cta-btn:hover i {
            transform: translateX(4px);
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1rem;
        }
        .footer-logo .logo-icon-mini {
            width: 34px;
            height: 34px;
            background: var(--secondary);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            color: #fff;
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.7;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 1.25rem;
            max-width: 360px;
        }
        .social-links {
            display: flex;
            gap: 12px;
        }
        .social-links a {
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.6);
            transition: var(--transition);
            font-size: 1rem;
        }
        .social-links a:hover {
            background: var(--secondary);
            color: #fff;
            transform: translateY(-3px);
        }

        .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 1.2rem;
            position: relative;
            padding-bottom: 0.5rem;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 30px;
            height: 2px;
            background: var(--secondary);
            border-radius: 1px;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--secondary);
            padding-left: 4px;
        }
        .footer-col ul li a i {
            width: 20px;
            margin-right: 4px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a:hover {
            color: var(--secondary);
        }
        .footer-bottom span a {
            margin: 0 4px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px 24px;
            }
            .process-steps::before {
                display: none;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --nav-height: 64px;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .section-subtitle {
                font-size: 1rem;
            }

            .header-nav {
                position: fixed;
                top: var(--nav-height);
                left: 0;
                right: 0;
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                flex-direction: column;
                padding: 16px 20px;
                gap: 4px;
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-md);
                display: none;
                max-height: 70vh;
                overflow-y: auto;
            }
            .header-nav.open {
                display: flex;
            }
            .header-nav a {
                padding: 12px 16px;
                width: 100%;
                border-radius: var(--radius-sm);
            }
            .header-nav a.active::after {
                display: none;
            }
            .header-nav a.active {
                background: rgba(30, 58, 95, 0.08);
            }

            .nav-toggle {
                display: flex;
            }

            .header-search {
                display: none;
            }
            .header-search.mobile-visible {
                display: flex;
                position: absolute;
                top: var(--nav-height);
                left: 20px;
                right: 20px;
                background: #fff;
                border: 1px solid var(--border-color);
                border-radius: var(--radius-sm);
                box-shadow: var(--shadow-md);
                z-index: 1060;
            }
            .header-search.mobile-visible input {
                min-width: 0;
                flex: 1;
            }

            .header-cta {
                padding: 8px 18px;
                font-size: 0.85rem;
            }

            .page-banner {
                padding: 80px 0 60px;
                min-height: 240px;
            }
            .page-banner h1 {
                font-size: 1.9rem;
            }
            .page-banner p {
                font-size: 1rem;
            }

            .featured-grid {
                grid-template-columns: 1fr;
            }

            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .stat-item .stat-number {
                font-size: 2rem;
            }

            .process-steps {
                grid-template-columns: 1fr 1fr;
                gap: 24px 16px;
            }
            .process-step .step-circle {
                width: 64px;
                height: 64px;
                font-size: 1.4rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 1.5rem;
            }
            .page-banner p {
                font-size: 0.9rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-item {
                padding: 20px 12px;
            }
            .stat-item .stat-number {
                font-size: 1.6rem;
            }
            .process-steps {
                grid-template-columns: 1fr;
                max-width: 280px;
                margin: 0 auto;
            }
            .guide-card {
                padding: 20px 16px;
            }
            .featured-item .fi-body {
                padding: 16px 18px 20px;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .cta-section .cta-btn {
                padding: 12px 24px;
                font-size: 0.95rem;
            }
            .header-logo {
                font-size: 1.1rem;
            }
            .header-logo .logo-icon {
                width: 32px;
                height: 32px;
                font-size: 0.95rem;
            }
            .header-cta {
                padding: 6px 14px;
                font-size: 0.8rem;
            }
        }

        /* ===== Extra utilities ===== */
        .text-secondary {
            color: var(--text-secondary) !important;
        }
        .bg-soft {
            background: var(--bg-soft);
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .gap-2 {
            gap: 8px;
        }
        .gap-3 {
            gap: 16px;
        }
        .fw-600 {
            font-weight: 600;
        }

/* roulang page: article */
:root {
            --primary: #1e3a5f;
            --primary-light: #2d5a8e;
            --primary-dark: #0f2440;
            --accent: #f0a500;
            --accent-hover: #d49400;
            --accent-soft: #fff6e0;
            --dark: #0d1b2a;
            --dark-light: #1b2838;
            --text: #2d3436;
            --text-light: #636e72;
            --text-white: #f0f4f8;
            --bg: #ffffff;
            --bg-alt: #f4f6f9;
            --bg-card: #ffffff;
            --border: #e2e6ed;
            --border-light: #eef1f5;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-xs: 6px;
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.07);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.14);
            --shadow-accent: 0 4px 20px rgba(240, 165, 0, 0.30);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family);
            color: var(--text);
            background: var(--bg);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
            margin-left: auto;
            margin-right: auto;
        }
        .container-narrow {
            max-width: 900px;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            background: var(--bg);
            border-bottom: 1px solid var(--border-light);
            box-shadow: 0 2px 16px rgba(0, 0, 0, 0.04);
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 16px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: var(--accent);
            border-radius: var(--radius-xs);
            font-size: 20px;
            font-weight: 800;
            box-shadow: 0 2px 12px rgba(30, 58, 95, 0.25);
        }
        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: -0.3px;
        }
        .logo-text span {
            color: var(--accent);
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .header-nav a {
            padding: 8px 18px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text);
            transition: var(--transition);
            position: relative;
        }
        .header-nav a:hover {
            color: var(--primary);
            background: var(--bg-alt);
        }
        .header-nav a.active {
            color: var(--bg);
            background: var(--primary);
            box-shadow: 0 2px 12px rgba(30, 58, 95, 0.20);
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg-alt);
            border-radius: 50px;
            padding: 0 16px;
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(240, 165, 0, 0.15);
        }
        .search-box input {
            border: none;
            background: transparent;
            padding: 8px 8px 8px 0;
            font-size: 14px;
            color: var(--text);
            outline: none;
            width: 140px;
        }
        .search-box input::placeholder {
            color: var(--text-light);
        }
        .search-box button {
            background: none;
            border: none;
            color: var(--text-light);
            cursor: pointer;
            padding: 6px;
            transition: var(--transition);
        }
        .search-box button:hover {
            color: var(--accent);
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: 50px;
            font-size: 15px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-align: center;
            justify-content: center;
            line-height: 1.4;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--dark);
            box-shadow: var(--shadow-accent);
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            color: var(--dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(240, 165, 0, 0.40);
        }
        .btn-outline {
            background: transparent;
            color: var(--bg);
            border: 2px solid rgba(255, 255, 255, 0.35);
        }
        .btn-outline:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: var(--accent);
            color: var(--accent);
        }
        .btn-sm {
            padding: 7px 18px;
            font-size: 13px;
        }
        .btn-lg {
            padding: 14px 36px;
            font-size: 17px;
        }
        .mobile-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            color: var(--primary);
            cursor: pointer;
            padding: 8px;
            border-radius: var(--radius-xs);
        }
        .mobile-toggle:hover {
            background: var(--bg-alt);
        }

        /* ===== Article Hero ===== */
        .article-hero {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: flex-end;
            padding: 60px 0 50px;
            overflow: hidden;
            background: var(--dark);
        }
        .article-hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.55;
            z-index: 0;
        }
        .article-hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(13, 27, 42, 0.30) 0%, rgba(13, 27, 42, 0.88) 80%, var(--dark) 100%);
        }
        .article-hero .container {
            position: relative;
            z-index: 1;
            width: 100%;
        }
        .article-breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }
        .article-breadcrumb a {
            color: rgba(255, 255, 255, 0.75);
            transition: var(--transition);
        }
        .article-breadcrumb a:hover {
            color: var(--accent);
        }
        .article-breadcrumb .sep {
            color: rgba(255, 255, 255, 0.30);
        }
        .article-category-badge {
            display: inline-block;
            background: var(--accent);
            color: var(--dark);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 16px;
            border-radius: 50px;
            letter-spacing: 0.3px;
            margin-bottom: 16px;
        }
        .article-hero h1 {
            font-size: 40px;
            font-weight: 800;
            color: var(--bg);
            line-height: 1.25;
            margin: 0 0 18px;
            max-width: 900px;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.30);
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 20px 32px;
            color: rgba(255, 255, 255, 0.75);
            font-size: 15px;
        }
        .article-meta i {
            margin-right: 6px;
            color: var(--accent);
        }
        .article-meta span {
            display: inline-flex;
            align-items: center;
        }

        /* ===== Article Content ===== */
        .article-section {
            padding: 60px 0 40px;
            background: var(--bg);
        }
        .article-body {
            font-size: 17px;
            line-height: 1.9;
            color: var(--text);
        }
        .article-body p {
            margin-bottom: 1.5em;
        }
        .article-body h2,
        .article-body h3 {
            margin-top: 1.8em;
            margin-bottom: 0.8em;
            color: var(--primary);
            font-weight: 700;
        }
        .article-body h2 {
            font-size: 28px;
        }
        .article-body h3 {
            font-size: 22px;
        }
        .article-body ul,
        .article-body ol {
            margin-bottom: 1.5em;
            padding-left: 1.5em;
        }
        .article-body li {
            margin-bottom: 0.5em;
        }
        .article-body img {
            border-radius: var(--radius-sm);
            margin: 1.5em 0;
            box-shadow: var(--shadow);
        }
        .article-body blockquote {
            border-left: 4px solid var(--accent);
            padding: 16px 24px;
            margin: 1.5em 0;
            background: var(--accent-soft);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            font-style: italic;
            color: var(--text-light);
        }
        .article-body a {
            color: var(--primary-light);
            text-decoration: underline;
            text-underline-offset: 3px;
        }
        .article-body a:hover {
            color: var(--accent);
        }
        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.5em 0;
            border-radius: var(--radius-sm);
            overflow: hidden;
        }
        .article-body table th {
            background: var(--primary);
            color: var(--bg);
            padding: 12px 16px;
            font-weight: 600;
        }
        .article-body table td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--border-light);
        }
        .article-body table tr:nth-child(even) td {
            background: var(--bg-alt);
        }

        .article-not-found {
            text-align: center;
            padding: 80px 20px;
        }
        .article-not-found .icon {
            font-size: 64px;
            color: var(--text-light);
            margin-bottom: 24px;
        }
        .article-not-found h2 {
            font-size: 28px;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .article-not-found p {
            color: var(--text-light);
            font-size: 17px;
            max-width: 500px;
            margin: 0 auto 28px;
        }

        /* ===== Article Footer (Tags / Share) ===== */
        .article-footer-bar {
            padding: 32px 0;
            border-top: 1px solid var(--border-light);
            border-bottom: 1px solid var(--border-light);
            margin-top: 40px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .article-tags .tag {
            padding: 5px 14px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 500;
            background: var(--bg-alt);
            color: var(--text-light);
            border: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .article-tags .tag:hover {
            background: var(--accent-soft);
            border-color: var(--accent);
            color: var(--accent-hover);
        }
        .article-share {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .article-share span {
            font-size: 14px;
            color: var(--text-light);
        }
        .article-share a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 50%;
            background: var(--bg-alt);
            color: var(--text-light);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            font-size: 16px;
        }
        .article-share a:hover {
            background: var(--primary);
            color: var(--bg);
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        /* ===== Related Posts ===== */
        .related-section {
            padding: 60px 0 30px;
            background: var(--bg-alt);
        }
        .related-section .section-title {
            font-size: 30px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .related-section .section-sub {
            color: var(--text-light);
            font-size: 16px;
            margin-bottom: 36px;
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
        }
        .related-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--accent);
        }
        .related-card-img {
            height: 200px;
            background: var(--dark-light);
            overflow: hidden;
            position: relative;
        }
        .related-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }
        .related-card:hover .related-card-img img {
            transform: scale(1.06);
        }
        .related-card-img .card-cat {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent);
            color: var(--dark);
            font-size: 12px;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 50px;
        }
        .related-card-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .related-card-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin: 0 0 10px;
            line-height: 1.4;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card-body p {
            font-size: 14px;
            color: var(--text-light);
            margin: 0 0 16px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card-body .card-meta {
            font-size: 13px;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .related-card-body .card-meta i {
            color: var(--accent);
            margin-right: 4px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            padding: 60px 0;
            background: var(--bg);
        }
        .faq-section .section-title {
            font-size: 30px;
            font-weight: 700;
            color: var(--primary);
            text-align: center;
            margin-bottom: 12px;
        }
        .faq-section .section-sub {
            text-align: center;
            color: var(--text-light);
            font-size: 16px;
            margin-bottom: 40px;
        }
        .faq-grid {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-alt);
            border-radius: var(--radius-sm);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--accent);
        }
        .faq-question {
            padding: 18px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            gap: 16px;
            transition: var(--transition);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question i {
            color: var(--accent);
            font-size: 18px;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 24px 18px;
            font-size: 15px;
            color: var(--text-light);
            line-height: 1.7;
            display: none;
        }
        .faq-item.active .faq-answer {
            display: block;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 70px 0;
            background: var(--primary);
            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-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-inner {
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }
        .cta-inner h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--bg);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .cta-inner p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.80);
            margin-bottom: 32px;
        }
        .cta-inner .btn-group {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--bg);
            margin-bottom: 16px;
        }
        .footer-brand .footer-logo .logo-icon-mini {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--accent);
            color: var(--dark);
            border-radius: var(--radius-xs);
            font-size: 18px;
            font-weight: 800;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.60);
            margin-bottom: 20px;
            max-width: 360px;
        }
        .social-links {
            display: flex;
            gap: 12px;
        }
        .social-links a {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            color: rgba(255, 255, 255, 0.70);
            font-size: 18px;
            transition: var(--transition);
        }
        .social-links a:hover {
            background: var(--accent);
            color: var(--dark);
            transform: translateY(-3px);
        }
        .footer-col h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--bg);
            margin-bottom: 18px;
        }
        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.60);
            font-size: 14px;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-col ul li a i {
            margin-right: 6px;
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.55);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        .footer-bottom span a {
            margin: 0 4px;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .article-hero h1 {
                font-size: 32px;
            }
        }

        @media (max-width: 768px) {
            .header-nav {
                display: none;
                position: absolute;
                top: 72px;
                left: 0;
                right: 0;
                background: var(--bg);
                border-bottom: 1px solid var(--border-light);
                box-shadow: var(--shadow-md);
                padding: 16px 20px;
                flex-direction: column;
                align-items: stretch;
                gap: 4px;
            }
            .header-nav.open {
                display: flex;
            }
            .header-nav a {
                padding: 12px 16px;
                border-radius: var(--radius-xs);
            }
            .header-nav a.active {
                background: var(--primary);
                color: var(--bg);
            }
            .mobile-toggle {
                display: block;
            }
            .search-box {
                display: none;
            }
            .header-actions .btn {
                padding: 7px 14px;
                font-size: 13px;
            }
            .article-hero {
                min-height: 320px;
                padding: 40px 0 36px;
            }
            .article-hero h1 {
                font-size: 26px;
            }
            .article-meta {
                font-size: 13px;
                gap: 12px 20px;
            }
            .article-body {
                font-size: 16px;
            }
            .related-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .article-footer-bar {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-inner h2 {
                font-size: 26px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
            .faq-question {
                font-size: 15px;
                padding: 16px 18px;
            }
            .faq-answer {
                padding: 0 18px 16px;
            }
        }

        @media (max-width: 520px) {
            .header-inner {
                height: 62px;
                gap: 8px;
            }
            .logo-text {
                font-size: 17px;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: 16px;
            }
            .article-hero h1 {
                font-size: 22px;
            }
            .article-hero {
                min-height: 260px;
                padding: 30px 0 28px;
            }
            .article-section {
                padding: 36px 0 24px;
            }
            .related-section {
                padding: 36px 0 20px;
            }
            .faq-section {
                padding: 36px 0;
            }
            .cta-section {
                padding: 44px 0;
            }
            .cta-inner h2 {
                font-size: 22px;
            }
            .cta-inner .btn-group {
                flex-direction: column;
                align-items: center;
            }
            .btn-lg {
                padding: 12px 28px;
                font-size: 15px;
                width: 100%;
                max-width: 280px;
            }
            .site-footer {
                padding: 36px 0 0;
            }
        }