/* roulang page: index */
:root{
--primary:#0f172a;--primary-light:#1e293b;--accent:#d97706;--accent-light:#f59e0b;
--bg:#f8fafc;--surface:#ffffff;--text:#1e293b;--text-weak:#64748b;--border:#e2e8f0;
--radius:16px;--radius-sm:10px;--shadow:0 4px 24px rgba(15,23,42,.08);--shadow-lg:0 12px 40px rgba(15,23,42,.12);
--space:80px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.7}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
button,input{font-family:inherit}
.container{width:min(1200px,92%);margin:0 auto}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:10px 22px;border-radius:999px;font-size:14px;font-weight:600;transition:all .25s;border:none;cursor:pointer;white-space:nowrap;line-height:1.4}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-light);transform:translateY(-2px);box-shadow:0 8px 24px rgba(15,23,42,.22)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-light);transform:translateY(-2px);box-shadow:0 8px 24px rgba(217,119,6,.28)}
.btn-outline{background:transparent;border:1.5px solid rgba(255,255,255,.5);color:#fff}
.btn-outline:hover{border-color:#fff;background:rgba(255,255,255,.1)}
.btn-lg{padding:14px 34px;font-size:16px}
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.logo{font-size:24px;font-weight:800;color:var(--primary);display:flex;align-items:center;gap:6px;letter-spacing:-.5px}
.logo span{color:var(--accent)}
.logo:hover{opacity:.85}
.main-nav{display:flex;gap:4px;margin-left:20px}
.main-nav a{padding:8px 18px;border-radius:999px;font-size:14px;font-weight:500;color:var(--text-weak);transition:all .25s}
.main-nav a:hover{color:var(--primary);background:rgba(15,23,42,.05)}
.main-nav a.active{color:var(--primary);background:rgba(217,119,6,.1);font-weight:600}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.search-box{position:relative}
.search-box input{width:180px;padding:9px 16px 9px 36px;border-radius:999px;border:1px solid var(--border);background:var(--bg);font-size:13px;outline:none;transition:all .3s;color:var(--text)}
.search-box input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(217,119,6,.14);width:220px;background:#fff}
.search-box svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--text-weak);pointer-events:none}
.mobile-toggle{display:none;background:none;border:none;font-size:26px;color:var(--text);cursor:pointer;padding:4px 8px}
.mobile-menu{display:none;flex-direction:column;padding:12px 20px;background:#fff;border-top:1px solid var(--border)}
.mobile-menu.open{display:flex}
.mobile-menu a{padding:12px 0;border-bottom:1px solid var(--border);font-size:15px;color:var(--text)}
.mobile-menu a:last-child{border-bottom:none}
.mobile-menu a.active{color:var(--accent);font-weight:600}
.hero{position:relative;background-size:cover;background-position:center;padding:130px 0;color:#fff;text-align:center;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(15,23,42,.94),rgba(15,23,42,.68))}
.hero .container{position:relative;z-index:2}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 18px;background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.25);border-radius:999px;font-size:13px;font-weight:500;margin-bottom:20px}
.hero h1{font-size:56px;font-weight:800;line-height:1.15;margin-bottom:16px;letter-spacing:-1px}
.hero h1 i{font-style:normal;color:var(--accent-light)}
.hero p{font-size:18px;max-width:660px;margin:0 auto 36px;opacity:.92;line-height:1.7}
.hero-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.hero-meta{display:flex;justify-content:center;gap:32px;margin-top:48px;flex-wrap:wrap}
.hero-meta-item{display:flex;align-items:center;gap:10px;font-size:14px;opacity:.85}
.hero-meta-item svg{width:18px;height:18px;color:var(--accent-light)}
.section{padding:var(--space) 0}
.section-alt{background:var(--surface)}
.section-header{text-align:center;margin-bottom:48px}
.section-tag{display:inline-block;padding:5px 16px;background:rgba(217,119,6,.1);color:var(--accent);border-radius:999px;font-size:13px;font-weight:600;margin-bottom:14px}
.section-title{font-size:38px;font-weight:700;line-height:1.3;color:var(--primary)}
.section-sub{color:var(--text-weak);font-size:16px;margin-top:10px;max-width:640px;margin-left:auto;margin-right:auto}
.grid{display:grid;gap:28px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.intro-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center}
.intro-img{border-radius:var(--radius);box-shadow:var(--shadow-lg);overflow:hidden}
.intro-img img{width:100%;height:100%;object-fit:cover;min-height:320px}
.intro-content h2{font-size:32px;line-height:1.3;margin-bottom:16px;color:var(--primary)}
.intro-content p{color:var(--text-weak);font-size:15px;line-height:1.8;margin-bottom:16px}
.intro-list{list-style:none;margin-top:20px}
.intro-list li{display:flex;align-items:flex-start;gap:12px;margin-bottom:12px;font-size:15px}
.intro-list li svg{width:20px;height:20px;color:var(--accent);flex-shrink:0;margin-top:3px}
.category-card{background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);padding:20px;display:block;transition:all .3s;position:relative;overflow:hidden}
.category-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:rgba(217,119,6,.3)}
.category-card img{width:100%;height:170px;object-fit:cover;border-radius:var(--radius-sm);margin-bottom:18px;transition:transform .4s}
.category-card:hover img{transform:scale(1.03)}
.category-card h3{font-size:19px;margin-bottom:8px;color:var(--text)}
.category-card p{color:var(--text-weak);font-size:14px;line-height:1.65;margin-bottom:16px}
.category-card .btn{font-size:13px;padding:8px 18px}
.post-card{display:block;background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);padding:24px;transition:all .3s}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(217,119,6,.25)}
.post-card h3{font-size:17px;margin-bottom:8px;line-height:1.45;color:var(--text)}
.post-card h3:hover{color:var(--accent)}
.post-card p{color:var(--text-weak);font-size:14px;margin-bottom:16px;line-height:1.65}
.post-meta{display:flex;gap:16px;align-items:center;font-size:13px;color:var(--text-weak)}
.post-meta .cat{background:rgba(217,119,6,.1);color:var(--accent);padding:3px 12px;border-radius:999px;font-weight:600;font-size:12px}
.empty-tip{text-align:center;padding:40px;background:var(--surface);border-radius:var(--radius);border:1px dashed var(--border);color:var(--text-weak);font-size:15px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-item{text-align:center;padding:42px 20px;background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);transition:all .3s}
.stat-item:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.stat-num{font-size:44px;font-weight:800;color:var(--primary);line-height:1.2}
.stat-label{color:var(--text-weak);font-size:14px;margin-top:10px}
.feature-card{background:var(--surface);border-radius:var(--radius);border:1px solid var(--border);overflow:hidden;transition:all .3s}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.feature-card img{width:100%;height:200px;object-fit:cover}
.feature-body{padding:22px}
.feature-body h3{font-size:18px;margin-bottom:8px}
.feature-body p{color:var(--text-weak);font-size:14px;line-height:1.6}
.faq-list{max-width:820px;margin:0 auto}
.faq-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:22px 26px;margin-bottom:14px;transition:all .3s}
.faq-item:hover{border-color:rgba(217,119,6,.3);box-shadow:var(--shadow)}
.faq-item h3{font-size:16px;margin-bottom:6px;color:var(--text);display:flex;align-items:center;gap:10px}
.faq-item h3::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--accent);flex-shrink:0}
.faq-item p{color:var(--text-weak);font-size:14px;line-height:1.7}
.cta-wrap{background:var(--primary);border-radius:24px;padding:70px 50px;text-align:center;color:#fff;position:relative;overflow:hidden}
.cta-wrap::before{content:'';position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;opacity:.2}
.cta-wrap>*{position:relative;z-index:2}
.cta-wrap h2{font-size:36px;margin-bottom:16px;font-weight:800}
.cta-wrap p{opacity:.88;margin-bottom:28px;font-size:16px;max-width:560px;margin-left:auto;margin-right:auto}
.site-footer{background:var(--primary);color:#94a3b8;padding:64px 0 24px;margin-top:40px}
.footer-inner{display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px}
.footer-brand .logo{color:#fff;font-size:22px;margin-bottom:14px}
.footer-brand p{font-size:14px;line-height:1.8;opacity:.8}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:18px;font-weight:600}
.footer-col a{display:block;padding:5px 0;font-size:14px;color:#94a3b8;transition:all .2s}
.footer-col a:hover{color:var(--accent);padding-left:4px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:22px;margin-top:44px;text-align:center;font-size:13px;color:#64748b}
@media(max-width:1024px){
.grid-4{grid-template-columns:repeat(2,1fr)}
.stats-grid{grid-template-columns:repeat(2,1fr)}
.footer-inner{grid-template-columns:1fr 1fr}
.intro-grid{grid-template-columns:1fr;gap:32px}
.hero h1{font-size:44px}
.section-title{font-size:32px}
}
@media(max-width:768px){
.main-nav{display:none}
.header-actions .search-box{display:none}
.mobile-toggle{display:block}
.hero{padding:80px 0}
.hero h1{font-size:34px;line-height:1.2}
.hero p{font-size:16px}
.hero-meta{gap:16px;flex-direction:column;align-items:center}
.hero-btns{flex-direction:column;align-items:center}
.hero-btns .btn{width:100%;max-width:280px}
.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
.section{padding:50px 0}
.section-title{font-size:26px}
.cta-wrap{padding:48px 24px}
.cta-wrap h2{font-size:28px}
.footer-inner{grid-template-columns:1fr}
.stat-item{padding:30px 16px}
.stat-num{font-size:34px}
}
@media(max-width:520px){
.header-inner{height:60px}
.logo{font-size:20px}
.btn-lg{padding:12px 24px;font-size:15px}
.hero h1{font-size:28px}
.hero-badge{font-size:12px;padding:4px 14px}
.hero-meta-item{font-size:13px}
.faq-item{padding:18px 18px}
}

/* roulang page: article */
:root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #dbeafe;
            --accent: #f59e0b;
            --accent-light: #fef3c7;
            --bg: #f8fafc;
            --bg-deep: #0f172a;
            --surface: #ffffff;
            --text: #1e293b;
            --text-weak: #64748b;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow: 0 1px 3px rgba(15, 23, 42, 0.06), 0 4px 16px rgba(15, 23, 42, 0.04);
            --shadow-lg: 0 4px 12px rgba(15, 23, 42, 0.08), 0 16px 40px rgba(15, 23, 42, 0.06);
            --space: 88px;
            --max-width: 1200px;
            --transition: 0.25s ease;
            --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, 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-family);
            background: var(--bg);
            color: var(--text);
            line-height: 1.75;
            font-size: 16px;
            overflow-x: hidden;
        }

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

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

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

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

        ::selection {
            background: var(--primary);
            color: #fff;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.86);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.7);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }

        .logo {
            font-size: 24px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text);
            white-space: nowrap;
        }

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

        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            flex: 1;
            justify-content: center;
        }

        .main-nav a {
            padding: 8px 16px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-weak);
            transition: all var(--transition);
            white-space: nowrap;
        }

        .main-nav a:hover {
            color: var(--text);
            background: var(--primary-light);
        }

        .main-nav a.active {
            background: var(--primary);
            color: #fff;
            font-weight: 600;
        }

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

        .search-box {
            position: relative;
            display: flex;
            align-items: center;
        }

        .search-box input {
            width: 0;
            padding: 0;
            border: 1px solid var(--border);
            border-radius: 999px;
            background: var(--surface);
            font-size: 14px;
            transition: all 0.3s ease;
            height: 40px;
            opacity: 0;
            pointer-events: none;
        }

        .search-box.open input {
            width: 200px;
            padding: 0 16px;
            opacity: 1;
            pointer-events: auto;
        }

        .search-btn {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--surface);
            border: 1px solid var(--border);
            color: var(--text-weak);
            cursor: pointer;
            transition: all var(--transition);
        }

        .search-btn:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 24px;
            background: var(--primary);
            color: #fff;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            white-space: nowrap;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 8px 20px rgba(37, 99, 235, 0.3);
        }

        .btn-primary:active {
            transform: translateY(0);
            box-shadow: none;
        }

        .btn-primary:focus-visible,
        .search-btn:focus-visible,
        .main-nav a:focus-visible {
            outline: 3px solid var(--primary-light);
            outline-offset: 2px;
        }

        .mobile-toggle {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            border: 1px solid var(--border);
            background: var(--surface);
            cursor: pointer;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--text);
            transition: all var(--transition);
        }

        .mobile-toggle:hover {
            background: var(--primary-light);
        }

        .article-hero {
            position: relative;
            padding: 80px 0 60px;
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 60%, #2563eb20 100%);
            overflow: hidden;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 100%;
            height: 100%;
            background-image: url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            opacity: 0.18;
            z-index: 0;
        }

        .article-hero::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -80px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, var(--primary)44 0%, transparent 70%);
            opacity: 0.25;
            z-index: 0;
        }

        .article-hero .container {
            position: relative;
            z-index: 2;
        }

        .article-crumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 20px;
        }

        .article-crumb a {
            color: rgba(255, 255, 255, 0.85);
            transition: color var(--transition);
        }

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

        .article-crumb .sep {
            opacity: 0.5;
        }

        .article-hero h1 {
            font-size: clamp(28px, 4.5vw, 44px);
            font-weight: 800;
            line-height: 1.25;
            color: #fff;
            letter-spacing: -0.02em;
            max-width: 760px;
            margin-bottom: 20px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            color: rgba(255, 255, 255, 0.75);
            font-size: 14px;
        }

        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .article-meta .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 4px 16px;
            background: var(--accent);
            color: #1e293b;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 700;
        }

        .article-body-section {
            padding: 64px 0;
            background: var(--bg);
        }

        .article-layout {
            display: grid;
            grid-template-columns: minmax(0, 1fr) 320px;
            gap: 48px;
            align-items: start;
        }

        .article-content-wrap {
            background: var(--surface);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
            box-shadow: var(--shadow);
            padding: 48px;
            overflow: hidden;
        }

        .article-cover {
            border-radius: var(--radius);
            overflow: hidden;
            margin-bottom: 36px;
            position: relative;
            aspect-ratio: 16 / 8;
        }

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

        .article-cover:hover img {
            transform: scale(1.02);
        }

        .article-cover .cover-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(8px);
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
        }

        .article-content {
            font-size: 16px;
            line-height: 1.9;
            color: #334155;
        }

        .article-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: var(--text);
            margin: 40px 0 16px;
            padding-left: 16px;
            border-left: 4px solid var(--primary);
            line-height: 1.4;
        }

        .article-content h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text);
            margin: 32px 0 12px;
        }

        .article-content p {
            margin-bottom: 20px;
        }

        .article-content ul,
        .article-content ol {
            margin: 0 0 24px 24px;
        }

        .article-content li {
            margin-bottom: 10px;
        }

        .article-content a {
            color: var(--primary);
            font-weight: 500;
            border-bottom: 1px solid var(--primary-light);
        }

        .article-content a:hover {
            color: var(--primary-dark);
            border-bottom-color: var(--primary);
        }

        .article-content blockquote {
            padding: 20px 24px;
            margin: 24px 0;
            background: var(--primary-light);
            border-radius: var(--radius-sm);
            border-left: 4px solid var(--primary);
            color: var(--text);
            font-style: normal;
        }

        .article-content img {
            border-radius: var(--radius);
            margin: 24px 0;
        }

        .article-content code {
            background: #f1f5f9;
            padding: 2px 8px;
            border-radius: 6px;
            font-size: 14px;
            color: var(--primary-dark);
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 36px;
            padding-top: 28px;
            border-top: 1px solid var(--border);
        }

        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            background: #f1f5f9;
            color: var(--text-weak);
            border-radius: 999px;
            font-size: 13px;
            font-weight: 500;
            transition: all var(--transition);
            cursor: default;
        }

        .tag:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .article-sidebar {
            position: sticky;
            top: 100px;
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

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

        .sidebar-card h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .sidebar-card h3 .icon {
            width: 32px;
            height: 32px;
            border-radius: 10px;
            background: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
        }

        .sidebar-info-list {
            list-style: none;
        }

        .sidebar-info-list li {
            display: flex;
            justify-content: space-between;
            padding: 10px 0;
            border-bottom: 1px solid #f1f5f9;
            font-size: 14px;
        }

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

        .sidebar-info-list .label {
            color: var(--text-weak);
        }

        .sidebar-info-list .value {
            font-weight: 600;
            color: var(--text);
        }

        .sidebar-link-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .sidebar-link-list a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            color: var(--text-weak);
            transition: all var(--transition);
        }

        .sidebar-link-list a:hover {
            background: var(--primary-light);
            color: var(--primary);
        }

        .sidebar-link-list a .dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--primary);
            opacity: 0.5;
            transition: all var(--transition);
        }

        .sidebar-link-list a:hover .dot {
            opacity: 1;
        }

        .sidebar-cta {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border: none;
            color: #fff;
            text-align: center;
        }

        .sidebar-cta h4 {
            font-size: 20px;
            font-weight: 800;
            margin-bottom: 8px;
            color: #fff;
        }

        .sidebar-cta p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
            margin-bottom: 24px;
        }

        .sidebar-cta .btn-white {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            background: #fff;
            color: var(--primary);
            border-radius: 999px;
            font-size: 14px;
            font-weight: 700;
            transition: all var(--transition);
            box-shadow: 0 4px 12px rgba(255, 255, 255, 0.25);
        }

        .sidebar-cta .btn-white:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(255, 255, 255, 0.35);
        }

        .faq-section {
            padding: 80px 0;
            background: var(--surface);
        }

        .section-head {
            text-align: center;
            max-width: 640px;
            margin: 0 auto 48px;
        }

        .section-head .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 18px;
            background: var(--primary-light);
            color: var(--primary);
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 16px;
        }

        .section-head h2 {
            font-size: clamp(26px, 3vw, 36px);
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.25;
            margin-bottom: 16px;
        }

        .section-head p {
            color: var(--text-weak);
            font-size: 16px;
        }

        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            max-width: 960px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow);
        }

        .faq-item h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .faq-item h4::before {
            content: 'Q';
            flex: none;
            width: 24px;
            height: 24px;
            border-radius: 8px;
            background: var(--primary);
            color: #fff;
            font-size: 12px;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-top: 2px;
        }

        .faq-item p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.7;
            padding-left: 34px;
        }

        .cta-section {
            padding: 80px 0;
            background: var(--bg-deep);
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.12;
        }

        .cta-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 680px;
            margin: 0 auto;
            padding: 20px;
        }

        .cta-inner h2 {
            font-size: clamp(28px, 3.5vw, 38px);
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
        }

        .cta-inner p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 32px;
        }

        .cta-inner .btn-primary {
            background: var(--accent);
            color: #1e293b;
            font-size: 16px;
            padding: 14px 36px;
        }

        .cta-inner .btn-primary:hover {
            background: #d97706;
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.4);
        }

        .site-footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 64px 0 0;
        }

        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 48px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-brand .logo {
            color: #fff;
            font-size: 24px;
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .footer-col a {
            display: block;
            color: #94a3b8;
            font-size: 14px;
            padding: 6px 0;
            transition: color var(--transition);
        }

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

        .footer-bottom {
            padding: 24px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: #64748b;
        }

        .not-found-section {
            padding: 80px 0;
            text-align: center;
            min-height: 60vh;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .not-found-card {
            background: var(--surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 64px 48px;
            max-width: 480px;
            box-shadow: var(--shadow-lg);
        }

        .not-found-card .code {
            font-size: 72px;
            font-weight: 800;
            color: var(--primary-light);
            line-height: 1;
            margin-bottom: 16px;
        }

        .not-found-card h2 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .not-found-card p {
            color: var(--text-weak);
            margin-bottom: 24px;
        }

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

            .article-sidebar {
                position: static;
                display: grid;
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --space: 60px;
            }

            .header-inner {
                height: 64px;
            }

            .main-nav {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--surface);
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow-lg);
                flex-direction: column;
                align-items: stretch;
                padding: 16px 24px;
                gap: 8px;
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: all 0.3s ease;
                z-index: 99;
            }

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

            .main-nav a {
                padding: 12px 16px;
                border-radius: 12px;
            }

            .main-nav a.active {
                background: var(--primary-light);
                color: var(--primary);
            }

            .mobile-toggle {
                display: flex;
            }

            .header-actions .btn-primary {
                display: none;
            }

            .search-box.open input {
                width: 140px;
            }

            .article-content-wrap {
                padding: 32px 24px;
            }

            .article-hero {
                padding: 56px 0 40px;
            }

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

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

            .article-sidebar {
                grid-template-columns: 1fr;
            }
        }

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

            .article-content-wrap {
                padding: 24px 20px;
                border-radius: var(--radius);
            }

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

            .article-meta {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }

            .section-head h2 {
                font-size: 24px;
            }

            .faq-item {
                padding: 20px;
            }

            .cta-section {
                padding: 60px 0;
            }

            .search-box {
                display: none;
            }

            .not-found-card {
                padding: 40px 24px;
            }
        }

/* roulang page: category1 */
/* ===== Design Tokens ===== */
        :root {
            --primary: #0b1222;
            --primary-soft: #1c2540;
            --accent: #f0b429;
            --accent-soft: #fef3d7;
            --accent-hover: #d9a216;
            --bg: #f5f7fb;
            --bg-white: #ffffff;
            --text: #1e293b;
            --text-weak: #64748b;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 4px 20px rgba(15, 23, 42, 0.06);
            --shadow-lg: 0 10px 36px rgba(15, 23, 42, 0.10);
            --transition: 0.3s ease;
            --container: 1180px;
            --header-height: 76px;
            --section-space: 90px;
        }

        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        button {
            font-family: inherit;
            cursor: pointer;
        }
        input {
            font-family: inherit;
        }
        .container {
            width: 100%;
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: var(--section-space) 0;
        }
        .section-header {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 52px;
        }
        .section-title {
            font-size: 34px;
            line-height: 1.3;
            color: var(--primary);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }
        .section-subtitle {
            font-size: 16px;
            color: var(--text-weak);
        }

        /* ===== Buttons ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 13px 26px;
            border-radius: 12px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1;
            border: none;
            transition: all 0.3s ease;
        }
        .btn-primary {
            background: var(--accent);
            color: #0b1222;
        }
        .btn-primary:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(240, 180, 41, 0.25);
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border: 1.5px solid rgba(255, 255, 255, 0.45);
        }
        .btn-outline:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-2px);
        }
        .btn-dark {
            background: var(--primary);
            color: #fff;
        }
        .btn-dark:hover {
            background: var(--primary-soft);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(11, 18, 34, 0.2);
        }

        /* ===== Header ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(255, 255, 255, 0.86);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border);
        }
        .header-wrap {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            height: var(--header-height);
        }
        .logo {
            font-size: 28px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .main-nav a {
            padding: 9px 18px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-weak);
        }
        .main-nav a:hover {
            color: var(--text);
            background: var(--bg);
        }
        .main-nav a.active {
            color: var(--primary);
            background: var(--accent-soft);
            font-weight: 600;
        }
        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .search-box {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 9px 14px;
            width: 210px;
            transition: var(--transition);
        }
        .search-box:focus-within {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(240, 180, 41, 0.14);
            background: #fff;
        }
        .search-box i {
            color: var(--text-weak);
            font-size: 14px;
        }
        .search-box input {
            border: none;
            outline: none;
            background: transparent;
            font-size: 14px;
            width: 100%;
            color: var(--text);
        }
        .search-box input::placeholder {
            color: var(--text-weak);
        }
        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 22px;
            color: var(--primary);
            padding: 4px;
        }

        /* ===== Hero ===== */
        .page-hero {
            position: relative;
            background: linear-gradient(135deg, rgba(11, 18, 34, 0.92) 0%, rgba(20, 30, 60, 0.74) 100%),
                url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            padding: 96px 0 76px;
            color: #fff;
        }
        .breadcrumb {
            display: flex;
            gap: 8px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            margin-bottom: 22px;
            align-items: center;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.85);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb .sep {
            opacity: 0.5;
        }
        .hero-title {
            font-size: 48px;
            line-height: 1.2;
            font-weight: 800;
            letter-spacing: -0.03em;
            max-width: 720px;
        }
        .hero-title span {
            color: var(--accent);
        }
        .hero-subtitle {
            font-size: 18px;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.76);
            max-width: 640px;
            margin-top: 18px;
        }
        .hero-buttons {
            display: flex;
            gap: 14px;
            margin-top: 34px;
            flex-wrap: wrap;
        }
        .hero-badges {
            display: flex;
            gap: 12px;
            margin-top: 44px;
            flex-wrap: wrap;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            border-radius: 100px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.18);
            font-size: 14px;
            color: rgba(255, 255, 255, 0.85);
        }
        .hero-badge i {
            color: var(--accent);
        }

        /* ===== Overview ===== */
        .overview-section {
            background: var(--bg);
        }
        .overview-grid {
            display: grid;
            grid-template-columns: 1.05fr 1fr;
            gap: 60px;
            align-items: center;
        }
        .overview-text .section-title {
            text-align: left;
        }
        .overview-text p {
            color: var(--text-weak);
            font-size: 16px;
            line-height: 1.8;
            margin-bottom: 14px;
        }
        .overview-cards {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 18px;
        }
        .info-card {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 24px;
            transition: var(--transition);
        }
        .info-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .info-card i {
            font-size: 22px;
            color: var(--accent);
            background: var(--accent-soft);
            width: 48px;
            height: 48px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 14px;
        }
        .info-card h4 {
            font-size: 16px;
            color: var(--primary);
            margin-bottom: 6px;
        }
        .info-card p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.6;
        }

        /* ===== Access Cards ===== */
        .access-section {
            background: var(--bg-white);
        }
        .access-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        .access-card {
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            background: #fff;
            transition: var(--transition);
        }
        .access-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-6px);
        }
        .access-card .card-img {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
        }
        .access-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .access-card .card-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(to top, rgba(11, 18, 34, 0.38), transparent 60%);
        }
        .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
            background: var(--accent);
            color: #0b1222;
            font-size: 13px;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 100px;
        }
        .card-body {
            padding: 24px;
        }
        .card-body h3 {
            font-size: 19px;
            color: var(--primary);
            margin-bottom: 10px;
        }
        .card-body p {
            font-size: 14.5px;
            color: var(--text-weak);
            line-height: 1.7;
        }
        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            margin-top: 16px;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-hover);
        }
        .card-link:hover {
            color: var(--primary);
            gap: 10px;
        }

        /* ===== Stats ===== */
        .stats-section {
            background: linear-gradient(135deg, #0b1222, #161f3a);
            color: #fff;
        }
        .stats-section .section-title {
            color: #fff;
        }
        .stats-section .section-subtitle {
            color: rgba(255, 255, 255, 0.6);
        }
        .stats-inner {
            display: grid;
            grid-template-columns: 1.35fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .stats-cards {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        .stat-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius);
            padding: 28px;
        }
        .stat-card .stat-num {
            font-size: 36px;
            font-weight: 800;
            color: var(--accent);
        }
        .stat-card .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.62);
            margin-bottom: 16px;
        }
        .stat-bar {
            height: 6px;
            border-radius: 3px;
            background: rgba(255, 255, 255, 0.12);
            overflow: hidden;
        }
        .stat-bar span {
            display: block;
            height: 100%;
            border-radius: 3px;
            background: var(--accent);
        }
        .total-score-wrap {
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .score-ring {
            width: 190px;
            height: 190px;
            border-radius: 50%;
            background: conic-gradient(var(--accent) 0 92%, rgba(255, 255, 255, 0.12) 92% 100%);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            position: relative;
        }
        .score-ring::before {
            content: '';
            position: absolute;
            inset: 14px;
            border-radius: 50%;
            background: #161f3a;
            box-shadow: inset 0 0 24px rgba(0, 0, 0, 0.18);
        }
        .score-num {
            position: relative;
            z-index: 1;
            font-size: 44px;
            font-weight: 800;
            color: #fff;
            line-height: 1;
        }
        .score-label {
            position: relative;
            z-index: 1;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 6px;
        }

        /* ===== Steps ===== */
        .steps-section {
            background: var(--bg);
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
        }
        .step-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 24px;
            position: relative;
            transition: var(--transition);
        }
        .step-item:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .step-item::after {
            content: '';
            position: absolute;
            right: -20px;
            top: 42px;
            width: 16px;
            height: 2px;
            background: var(--border);
        }
        .step-item:last-child::after {
            display: none;
        }
        .step-num {
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
            margin-bottom: 18px;
        }
        .step-item h3 {
            font-size: 17px;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .step-item p {
            font-size: 14px;
            color: var(--text-weak);
            line-height: 1.7;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-white);
        }
        .faq-list {
            max-width: 840px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .faq-item {
            border: 1px solid var(--border);
            border-radius: var(--radius);
            background: #fff;
            transition: var(--transition);
            overflow: hidden;
        }
        .faq-item:hover {
            border-color: #cbd5e1;
            box-shadow: var(--shadow);
        }
        .faq-item[open] {
            border-color: var(--accent);
        }
        .faq-item summary {
            padding: 20px 24px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            cursor: pointer;
            list-style: none;
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '+';
            font-size: 22px;
            font-weight: 400;
            color: var(--text-weak);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item[open] summary::after {
            transform: rotate(45deg);
            color: var(--accent);
        }
        .faq-a {
            padding: 0 24px 20px;
            font-size: 15px;
            color: var(--text-weak);
            line-height: 1.8;
            border-top: 1px solid var(--bg);
            padding-top: 14px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 0 0 var(--section-space);
            background: var(--bg);
        }
        .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 40px;
            background: linear-gradient(135deg, var(--primary), #1d2a4d);
            border-radius: 24px;
            padding: 52px 60px;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-inner::before {
            content: '';
            position: absolute;
            right: -60px;
            top: -60px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(240, 180, 41, 0.14);
        }
        .cta-inner::after {
            content: '';
            position: absolute;
            left: -40px;
            bottom: -80px;
            width: 160px;
            height: 160px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
        }
        .cta-title {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }
        .cta-text {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.7);
            max-width: 480px;
            position: relative;
            z-index: 1;
        }
        .cta-buttons {
            display: flex;
            gap: 14px;
            flex-shrink: 0;
            position: relative;
            z-index: 1;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0b1222;
            color: rgba(255, 255, 255, 0.65);
            padding: 64px 0 0;
        }
        .footer-inner {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
        }
        .footer-brand .logo {
            color: #fff;
            font-size: 26px;
        }
        .footer-brand p {
            margin-top: 14px;
            font-size: 14px;
            line-height: 1.8;
            max-width: 340px;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-col h4 {
            font-size: 15px;
            color: #fff;
            margin-bottom: 16px;
            font-weight: 600;
        }
        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, 0.55);
            font-size: 14px;
            line-height: 2.4;
        }
        .footer-col a:hover {
            color: var(--accent);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.35);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 40px;
            }
            .overview-grid {
                gap: 36px;
            }
            .steps-grid {
                grid-template-columns: 1fr 1fr;
            }
            .step-item::after {
                display: none;
            }
        }

        @media (max-width: 900px) {
            .main-nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 12px 24px;
                border-bottom: 1px solid var(--border);
                box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
                transform: translateY(-130%);
                transition: transform 0.3s ease;
                z-index: 99;
            }
            .main-nav.open {
                transform: translateY(0);
            }
            .main-nav a {
                padding: 13px 16px;
                font-size: 15px;
            }
            .menu-toggle {
                display: block;
            }
            .search-box {
                display: none;
            }
            .header-actions .btn {
                display: none;
            }
            .hero-title {
                font-size: 34px;
            }
            .overview-grid {
                grid-template-columns: 1fr;
            }
            .overview-text .section-title {
                text-align: center;
            }
            .overview-text p {
                text-align: center;
            }
            .access-grid {
                grid-template-columns: 1fr;
                max-width: 460px;
                margin: 0 auto;
            }
            .stats-inner {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .total-score-wrap {
                order: -1;
            }
            .footer-inner {
                grid-template-columns: 1fr 1fr;
            }
            .cta-inner {
                flex-direction: column;
                text-align: center;
                padding: 44px 32px;
            }
            .cta-text {
                margin: 0 auto;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .section {
                padding: 56px 0;
            }
            .section-title {
                font-size: 26px;
            }
            .hero-title {
                font-size: 28px;
            }
            .hero-subtitle {
                font-size: 16px;
            }
            .page-hero {
                padding: 70px 0 54px;
            }
            .hero-badges {
                gap: 8px;
            }
            .hero-badge {
                font-size: 13px;
                padding: 6px 12px;
            }
            .overview-cards {
                grid-template-columns: 1fr;
            }
            .stats-cards {
                grid-template-columns: 1fr;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .footer-inner {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .cta-title {
                font-size: 22px;
            }
            .cta-buttons {
                flex-direction: column;
                width: 100%;
            }
            .cta-buttons .btn {
                width: 100%;
            }
        }