/* roulang page: index */
:root {
    --primary: #0b1f3a;
    --primary-dark: #071426;
    --secondary: #2563eb;
    --accent: #f59e0b;
    --bg: #f5f7fa;
    --card-bg: #ffffff;
    --text: #1a2333;
    --text-light: #6b7280;
    --border: #e5e7eb;
    --radius: 14px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(0,0,0,0.06);
    --shadow-lg: 0 12px 40px rgba(0,0,0,0.10);
    --section-pad: 80px;
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.6; font-size: 16px; }
a { text-decoration: none; color: inherit; transition: color .2s; }
img { max-width: 100%; display: block; }
button, input { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ===== Header / Nav ===== */
.site-header {
    position: sticky; top: 0; z-index: 100;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0,0,0,0.06);
    box-shadow: 0 2px 20px rgba(0,0,0,0.03);
}
.nav-bar { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.site-logo { font-size: 22px; font-weight: 800; color: var(--primary); display: flex; align-items: center; gap: 8px; letter-spacing: -0.5px; }
.site-logo i { color: var(--secondary); font-size: 24px; }
.logo-badge { font-size: 11px; background: var(--accent); color: #fff; padding: 2px 6px; border-radius: 4px; font-weight: 600; letter-spacing: 0.5px; }
.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-link { padding: 8px 18px; font-size: 15px; font-weight: 500; color: var(--text-light); border-radius: 6px; transition: all .2s; }
.nav-link:hover { color: var(--primary); background: rgba(0,0,0,0.03); }
.nav-link.active { color: var(--secondary); font-weight: 600; background: rgba(37,99,235,0.08); }
.nav-right { display: flex; align-items: center; gap: 12px; }
.search-box { position: relative; display: flex; align-items: center; }
.search-box input {
    width: 200px; height: 38px; border: 1px solid var(--border); border-radius: 20px;
    padding: 0 36px 0 14px; font-size: 14px; outline: none; background: var(--bg);
    transition: all .25s;
}
.search-box input:focus { border-color: var(--secondary); box-shadow: 0 0 0 3px rgba(37,99,235,0.12); width: 220px; background: #fff; }
.search-box i { position: absolute; right: 13px; color: var(--text-light); font-size: 13px; pointer-events: none; }
.btn-nav {
    height: 38px; background: var(--secondary); color: #fff; border: none;
    border-radius: 20px; padding: 0 22px; font-size: 14px; font-weight: 600; cursor: pointer;
    transition: all .25s; display: flex; align-items: center; gap: 6px;
}
.btn-nav:hover { background: #1d4ed8; transform: translateY(-1px); box-shadow: 0 6px 16px rgba(37,99,235,0.3); }
.nav-toggle { display: none; background: none; border: none; font-size: 22px; color: var(--primary); cursor: pointer; padding: 6px; }

/* Mobile nav */
@media (max-width: 900px) {
    .nav-links, .search-box { display: none; }
    .nav-toggle { display: block; }
    .nav-open .nav-links {
        display: flex; flex-direction: column; align-items: flex-start;
        position: absolute; top: 68px; left: 0; right: 0; background: #fff;
        padding: 16px 20px; gap: 4px; border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow);
    }
    .nav-open .nav-links a { width: 100%; padding: 12px; font-size: 16px; }
    .nav-open .search-box { display: flex; position: absolute; top: 180px; left: 20px; right: 20px; }
    .nav-open .search-box input { width: 100%; }
}

/* ===== Hero ===== */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, #0f2b50 60%, #1a3a63 100%);
    padding: 100px 0 90px;
    position: relative;
    overflow: hidden;
    color: #fff;
}
.hero::before {
    content: '';
    position: absolute; top: 0; right: 0; width: 55%; height: 100%;
    background: url('/assets/images/backpic/back-1.png') no-repeat center right / cover;
    opacity: 0.22;
}
.hero .container { position: relative; z-index: 2; }
.hero-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 50px; align-items: center; }
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.25); padding: 6px 16px; border-radius: 30px;
    font-size: 13px; font-weight: 500; margin-bottom: 20px;
}
.hero-badge i { color: var(--accent); }
.hero h1 { font-size: 48px; font-weight: 800; line-height: 1.2; letter-spacing: -1px; margin-bottom: 18px; }
.hero h1 span { color: #7ab8ff; }
.hero p { font-size: 17px; color: rgba(255,255,255,0.78); max-width: 540px; margin-bottom: 30px; line-height: 1.7; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.btn-hero {
    display: inline-flex; align-items: center; gap: 8px; padding: 14px 32px; border-radius: 30px;
    font-size: 16px; font-weight: 600; border: none; cursor: pointer; transition: all .25s;
}
.btn-hero-primary { background: var(--accent); color: var(--primary-dark); }
.btn-hero-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(245,158,11,0.4); }
.btn-hero-outline { background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,0.5); }
.btn-hero-outline:hover { border-color: #fff; background: rgba(255,255,255,0.08); transform: translateY(-2px); }
.hero-stats { display: flex; gap: 30px; margin-top: 40px; }
.hero-stat { text-align: left; }
.hero-stat .num { font-size: 28px; font-weight: 800; color: #7ab8ff; }
.hero-stat .label { font-size: 13px; color: rgba(255,255,255,0.65); }
.hero-card {
    background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.18);
    border-radius: var(--radius); padding: 30px; backdrop-filter: blur(10px);
}
.hero-card h3 { color: #fff; font-size: 18px; margin-bottom: 14px; }
.hero-card-list { list-style: none; }
.hero-card-list li { display: flex; gap: 10px; align-items: flex-start; padding: 8px 0; color: rgba(255,255,255,0.82); font-size: 14px; }
.hero-card-list i { color: var(--accent); margin-top: 3px; }

/* ===== Ticker ===== */
.ticker-bar { background: var(--primary-dark); color: #fff; padding: 10px 0; overflow: hidden; }
.ticker-inner { display: flex; gap: 40px; white-space: nowrap; animation: ticker 30s linear infinite; font-size: 14px; }
.ticker-inner span { display: flex; align-items: center; gap: 6px; }
.ticker-inner i { color: var(--accent); font-size: 12px; }
@keyframes ticker { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* ===== Section ===== */
.section { padding: var(--section-pad) 0; }
.section-alt { background: #fff; }
.section-label { font-size: 13px; font-weight: 700; color: var(--secondary); text-transform: uppercase; letter-spacing: 1.5px; margin-bottom: 10px; }
.section-title { font-size: 32px; font-weight: 800; color: var(--primary); line-height: 1.25; margin-bottom: 12px; letter-spacing: -0.5px; }
.section-subtitle { color: var(--text-light); font-size: 16px; max-width: 600px; margin-bottom: 40px; }
.section-title.center { text-align: center; }
.section-subtitle.center { margin-left: auto; margin-right: auto; text-align: center; }

/* ===== Cards ===== */
.card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
    background: var(--card-bg); border-radius: var(--radius); border: 1px solid var(--border);
    overflow: hidden; transition: all .3s; box-shadow: 0 2px 10px rgba(0,0,0,0.03);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(37,99,235,0.2); }
.card-cover { width: 100%; height: 200px; object-fit: cover; }
.card-body { padding: 24px; }
.card-tags { display: flex; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.badge {
    display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 12px; font-weight: 600;
    background: rgba(37,99,235,0.08); color: var(--secondary);
}
.badge-accent { background: rgba(245,158,11,0.12); color: #b45309; }
.badge-green { background: rgba(16,185,129,0.10); color: #059669; }
.badge-purple { background: rgba(139,92,246,0.10); color: #7c3aed; }
.card h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; color: var(--primary); line-height: 1.4; }
.card h3 a:hover { color: var(--secondary); }
.card p { color: var(--text-light); font-size: 14px; line-height: 1.6; margin-bottom: 14px; }
.card-meta { display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: #9ca3af; border-top: 1px solid #f3f4f6; padding-top: 14px; }

/* ===== Intro ===== */
.intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.intro-grid .cover-img { border-radius: var(--radius); box-shadow: var(--shadow-lg); width: 100%; height: 340px; object-fit: cover; }
.intro-content .list-check { list-style: none; margin: 20px 0; }
.intro-content .list-check li { display: flex; gap: 10px; align-items: flex-start; padding: 6px 0; font-size: 15px; }
.intro-content .list-check i { color: var(--secondary); margin-top: 4px; }
.btn-secondary {
    display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px; border-radius: 24px;
    background: var(--secondary); color: #fff; font-size: 15px; font-weight: 600; border: none; cursor: pointer;
    transition: all .25s;
}
.btn-secondary:hover { background: #1d4ed8; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(37,99,235,0.25); }

/* ===== Category cards ===== */
.cat-card {
    position: relative; border-radius: var(--radius); overflow: hidden;
    min-height: 260px; background-size: cover; background-position: center;
    display: flex; align-items: flex-end; transition: all .3s;
}
.cat-card::before { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, rgba(11,31,58,0.88) 0%, rgba(11,31,58,0.2) 60%, transparent 100%); }
.cat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.cat-card-content { position: relative; padding: 30px; width: 100%; color: #fff; }
.cat-card-content h3 { font-size: 22px; font-weight: 700; margin-bottom: 8px; }
.cat-card-content p { font-size: 14px; opacity: 0.82; margin-bottom: 16px; }
.cat-card-link { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; color: var(--accent); }

/* ===== Stats ===== */
.stats-section { background: var(--primary); color: #fff; padding: 60px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; text-align: center; }
.stat-item .num { font-size: 38px; font-weight: 800; color: #7ab8ff; margin-bottom: 4px; }
.stat-item .label { font-size: 14px; color: rgba(255,255,255,0.7); }

/* ===== Steps ===== */
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.step-card { background: var(--card-bg); border-radius: var(--radius); padding: 30px; border: 1px solid var(--border); position: relative; transition: all .3s; }
.step-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.step-num { font-size: 34px; font-weight: 800; color: rgba(37,99,235,0.15); margin-bottom: 14px; }
.step-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; color: var(--primary); }
.step-card p { font-size: 14px; color: var(--text-light); }

/* ===== News list (CMS) ===== */
.news-list { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.news-item {
    display: flex; gap: 16px; background: var(--card-bg); border-radius: var(--radius-sm);
    padding: 18px; border: 1px solid var(--border); transition: all .25s; align-items: flex-start;
}
.news-item:hover { border-color: rgba(37,99,235,0.3); box-shadow: var(--shadow); }
.news-badge { font-size: 12px; background: var(--secondary); color: #fff; padding: 2px 10px; border-radius: 4px; flex-shrink: 0; margin-top: 2px; font-weight: 600; }
.news-item-body h3 { font-size: 15px; font-weight: 600; margin-bottom: 4px; }
.news-item-body h3 a:hover { color: var(--secondary); }
.news-item-body p { font-size: 13px; color: var(--text-light); line-height: 1.5; }
.news-item-body .time { font-size: 12px; color: #9ca3af; margin-top: 6px; display: block; }

/* ===== FAQ ===== */
.faq-grid { max-width: 760px; margin: 0 auto; }
.faq-item { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 12px; overflow: hidden; transition: all .25s; }
.faq-item:hover { border-color: rgba(37,99,235,0.25); }
.faq-item.open { border-color: var(--secondary); box-shadow: var(--shadow); }
.faq-question { display: flex; justify-content: space-between; align-items: center; padding: 18px 22px; cursor: pointer; font-weight: 600; color: var(--primary); }
.faq-question i { transition: transform .3s; color: var(--secondary); }
.faq-item.open .faq-question i { transform: rotate(180deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.faq-answer-inner { padding: 0 22px 18px; color: var(--text-light); font-size: 14px; line-height: 1.7; }

/* ===== CTA ===== */
.cta-block {
    background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
    position: relative; border-radius: var(--radius); padding: 60px;
    text-align: center; color: #fff; overflow: hidden;
}
.cta-block::before { content: ''; position: absolute; inset: 0; background: rgba(11,31,58,0.82); }
.cta-block > * { position: relative; z-index: 2; }
.cta-block h2 { font-size: 30px; font-weight: 800; margin-bottom: 14px; }
.cta-block p { font-size: 16px; opacity: 0.85; max-width: 540px; margin: 0 auto 28px; }
.btn-cta {
    display: inline-flex; align-items: center; gap: 8px; padding: 15px 38px; border-radius: 30px;
    background: var(--accent); color: var(--primary-dark); font-size: 16px; font-weight: 700;
    border: none; cursor: pointer; transition: all .25s;
}
.btn-cta:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(245,158,11,0.45); }

/* ===== Footer ===== */
.site-footer { background: var(--primary-dark); color: rgba(255,255,255,0.75); padding: 50px 0 20px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(255,255,255,0.08); }
.footer-grid h4 { color: #fff; font-size: 16px; font-weight: 600; margin-bottom: 16px; }
.footer-links { list-style: none; }
.footer-links li { padding: 4px 0; }
.footer-links a { color: rgba(255,255,255,0.6); font-size: 14px; }
.footer-links a:hover { color: #fff; }
.footer-brand { font-size: 18px; font-weight: 700; color: #fff; margin-bottom: 10px; display: flex; align-items: center; gap: 8px; }
.footer-brand i { color: var(--secondary); }
.footer-desc { font-size: 14px; color: rgba(255,255,255,0.55); max-width: 320px; line-height: 1.7; }
.footer-bottom { padding-top: 20px; text-align: center; font-size: 13px; color: rgba(255,255,255,0.4); }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero-grid { grid-template-columns: 1fr; gap: 30px; }
    .hero { padding: 60px 0; }
    .hero h1 { font-size: 36px; }
    .card-grid { grid-template-columns: repeat(2, 1fr); }
    .steps-grid { grid-template-columns: repeat(2, 1fr); }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .intro-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .news-list { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
    :root { --section-pad: 50px; }
    .section-title { font-size: 26px; }
    .hero h1 { font-size: 30px; }
    .hero p { font-size: 15px; }
    .card-grid { grid-template-columns: 1fr; }
    .steps-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .cta-block { padding: 40px 24px; }
    .hero-actions { flex-direction: column; }
    .btn-hero { width: 100%; justify-content: center; }
}
@media (max-width: 520px) {
    .search-box { display: none !important; }
    .btn-nav { display: none; }
    .nav-toggle { display: block; }
    .hero-stats { flex-direction: column; gap: 14px; }
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
    .hero-card { padding: 20px; }
    .faq-question { font-size: 15px; }
}

/* roulang page: category1 */
:root {
            --primary: #1e3a5f;
            --primary-dark: #142b47;
            --accent: #0ea5e9;
            --accent-deep: #0284c7;
            --accent-soft: #e0f2fe;
            --bg: #f4f7fb;
            --bg-white: #ffffff;
            --text: #13273e;
            --text-light: #5a7184;
            --text-muted: #8ba3b8;
            --border: #e2e8f0;
            --success: #10b981;
            --warning: #f59e0b;
            --radius-sm: 8px;
            --radius: 14px;
            --radius-lg: 24px;
            --shadow: 0 4px 24px rgba(30, 58, 95, 0.08);
            --shadow-hover: 0 12px 36px rgba(30, 58, 95, 0.14);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --header-height: 72px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }
        input {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .site-header {
            position: sticky;
            top: 0;
            z-index: 999;
            background: rgba(255, 255, 255, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            height: var(--header-height);
        }
        .nav-bar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            gap: 16px;
        }
        .site-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-weight: 800;
            font-size: 1.25rem;
            color: var(--primary);
            white-space: nowrap;
        }
        .site-logo i {
            font-size: 1.4rem;
            color: var(--accent);
        }
        .logo-badge {
            background: var(--accent-soft);
            color: var(--accent-deep);
            font-size: 0.7rem;
            font-weight: 700;
            padding: 2px 10px;
            border-radius: 20px;
            letter-spacing: 0.5px;
        }
        .nav-links {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .nav-link {
            font-size: 0.92rem;
            font-weight: 500;
            color: var(--text-light);
            padding: 8px 4px;
            position: relative;
            transition: var(--transition);
        }
        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
            transition: var(--transition);
        }
        .nav-link:hover {
            color: var(--primary);
        }
        .nav-link:hover::after,
        .nav-link.active::after {
            width: 100%;
        }
        .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-box {
            position: relative;
        }
        .search-box input {
            width: 180px;
            height: 38px;
            border: 1px solid var(--border);
            border-radius: 24px;
            padding: 0 36px 0 16px;
            font-size: 0.85rem;
            background: var(--bg);
            transition: var(--transition);
            outline: none;
        }
        .search-box input:focus {
            border-color: var(--accent);
            background: var(--bg-white);
            box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.12);
            width: 220px;
        }
        .search-box i {
            position: absolute;
            right: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-muted);
            font-size: 0.85rem;
            pointer-events: none;
        }
        .btn-nav {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: var(--primary);
            color: #fff;
            font-size: 0.85rem;
            font-weight: 600;
            padding: 9px 18px;
            border-radius: 24px;
            transition: var(--transition);
            white-space: nowrap;
        }
        .btn-nav:hover {
            background: var(--primary-dark);
            transform: translateY(-1px);
            box-shadow: 0 6px 20px rgba(30, 58, 95, 0.25);
        }
        .btn-nav i {
            font-size: 0.8rem;
        }
        .nav-toggle {
            display: none;
            font-size: 1.3rem;
            color: var(--primary);
            padding: 8px;
            border-radius: 8px;
        }
        .nav-toggle:hover {
            background: var(--accent-soft);
        }
        .page-banner {
            position: relative;
            padding: 90px 0 70px;
            background-size: cover;
            background-position: center;
            text-align: center;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(20, 43, 71, 0.92), rgba(14, 165, 233, 0.75));
        }
        .banner-inner {
            position: relative;
            z-index: 2;
            max-width: 760px;
        }
        .breadcrumb {
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 18px;
            display: flex;
            gap: 8px;
            justify-content: center;
            align-items: center;
        }
        .breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
            transition: var(--transition);
        }
        .breadcrumb a:hover {
            color: #fff;
        }
        .page-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .page-banner p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.9);
            line-height: 1.8;
            margin-bottom: 30px;
        }
        .banner-btns {
            display: flex;
            gap: 14px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            padding: 14px 32px;
            border-radius: 28px;
            transition: var(--transition);
            box-shadow: 0 6px 24px rgba(14, 165, 233, 0.3);
        }
        .btn-primary:hover {
            background: var(--accent-deep);
            transform: translateY(-2px);
            box-shadow: 0 10px 30px rgba(14, 165, 233, 0.4);
        }
        .btn-outline-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 2px solid rgba(255, 255, 255, 0.7);
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            padding: 12px 30px;
            border-radius: 28px;
            transition: var(--transition);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            transform: translateY(-2px);
        }
        .section {
            padding: 80px 0;
        }
        .section-head {
            text-align: center;
            max-width: 680px;
            margin: 0 auto 48px;
        }
        .section-tag {
            display: inline-block;
            background: var(--accent-soft);
            color: var(--accent-deep);
            font-size: 0.8rem;
            font-weight: 700;
            padding: 5px 16px;
            border-radius: 20px;
            margin-bottom: 14px;
            letter-spacing: 1px;
            text-transform: uppercase;
        }
        .section-head h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.3;
            margin-bottom: 12px;
        }
        .section-head p {
            color: var(--text-light);
            font-size: 1rem;
            line-height: 1.7;
        }
        .stats-section {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border);
            padding: 50px 0;
        }
        .stat-card {
            text-align: center;
            padding: 30px 20px;
            background: var(--bg);
            border: 1px solid rgba(226, 232, 240, 0.6);
            border-radius: var(--radius);
            transition: var(--transition);
        }
        .stat-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }
        .stat-icon {
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: var(--accent-soft);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-deep);
            font-size: 1.2rem;
            margin-bottom: 14px;
        }
        .stat-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary);
            line-height: 1.2;
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--text-light);
            margin-top: 6px;
        }
        .steps-section {
            background: var(--bg-white);
        }
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: 10px;
        }
        .step-card {
            position: relative;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 36px 24px 28px;
            transition: var(--transition);
        }
        .step-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }
        .step-num {
            position: absolute;
            top: -16px;
            left: 24px;
            width: 40px;
            height: 40px;
            background: var(--accent);
            color: #fff;
            font-size: 1.05rem;
            font-weight: 800;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 6px 16px rgba(14, 165, 233, 0.3);
        }
        .step-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
            margin: 18px 0 10px;
        }
        .step-card p {
            font-size: 0.88rem;
            color: var(--text-light);
            line-height: 1.7;
        }
        .step-line {
            position: absolute;
            top: 40px;
            right: -24px;
            width: 24px;
            height: 2px;
            background: var(--border);
        }
        .step-card:last-child .step-line {
            display: none;
        }
        .features-section {
            background: var(--bg);
        }
        .feature-card {
            background: var(--bg-white);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border);
            transition: var(--transition);
            height: 100%;
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }
        .feature-img {
            width: 100%;
            height: 200px;
            object-fit: cover;
            transition: var(--transition);
        }
        .feature-card:hover .feature-img {
            transform: scale(1.05);
        }
        .feature-body {
            padding: 24px;
        }
        .feature-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 8px;
        }
        .feature-body p {
            font-size: 0.88rem;
            color: var(--text-light);
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .feature-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag {
            display: inline-block;
            background: var(--accent-soft);
            color: var(--accent-deep);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 16px;
        }
        .tag-neutral {
            background: #f1f5f9;
            color: #475569;
        }
        .tips-section {
            background: var(--bg-white);
        }
        .tips-card,
        .warning-card {
            background: var(--bg);
            border-radius: var(--radius-lg);
            padding: 32px 36px;
            height: 100%;
            border: 1px solid rgba(226, 232, 240, 0.6);
        }
        .tips-card h3,
        .warning-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .tips-card h3 i {
            color: var(--success);
        }
        .warning-card h3 i {
            color: var(--warning);
        }
        .tips-card ul,
        .warning-card ul {
            list-style: none;
        }
        .tips-card li,
        .warning-card li {
            display: flex;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px dashed var(--border);
            font-size: 0.92rem;
            color: var(--text-light);
            line-height: 1.6;
        }
        .tips-card li:last-child,
        .warning-card li:last-child {
            border-bottom: none;
        }
        .tips-card li i {
            color: var(--success);
            margin-top: 4px;
            font-size: 0.85rem;
        }
        .warning-card li i {
            color: var(--warning);
            margin-top: 4px;
            font-size: 0.85rem;
        }
        .faq-section {
            background: var(--bg);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 14px;
        }
        .faq-item {
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(14, 165, 233, 0.4);
            box-shadow: var(--shadow);
        }
        .faq-item details {
            padding: 20px 24px;
        }
        .faq-item summary {
            font-size: 0.98rem;
            font-weight: 600;
            color: var(--primary);
            cursor: pointer;
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.8rem;
            color: var(--accent);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item details[open] summary::after {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding-top: 14px;
            margin-top: 14px;
            border-top: 1px solid var(--border);
            font-size: 0.9rem;
            color: var(--text-light);
            line-height: 1.8;
        }
        .cta-section {
            background: var(--bg-white);
            padding: 80px 0;
        }
        .cta-card {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            border-radius: var(--radius-lg);
            padding: 56px 40px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-card::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(14, 165, 233, 0.2);
        }
        .cta-card h2 {
            color: #fff;
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 12px;
            position: relative;
            z-index: 1;
        }
        .cta-card p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 1.05rem;
            margin-bottom: 30px;
            position: relative;
            z-index: 1;
        }
        .cta-card .btn-primary {
            background: var(--accent);
            position: relative;
            z-index: 1;
            font-size: 1rem;
            padding: 16px 40px;
        }
        .cta-card .btn-primary:hover {
            background: #38bdf8;
        }
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.7);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-brand i {
            color: var(--accent);
        }
        .footer-desc {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.8;
            max-width: 320px;
        }
        .site-footer h4 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.85rem;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-bottom {
            padding: 22px 0;
            text-align: center;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.35);
        }
        @media (max-width: 1024px) {
            .nav-links {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--bg-white);
                padding: 16px 24px;
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                box-shadow: 0 12px 30px rgba(0, 0, 0, 0.08);
                border-bottom: 1px solid var(--border);
            }
            .site-header.nav-open .nav-links {
                display: flex;
            }
            .nav-toggle {
                display: inline-flex;
            }
            .search-box {
                display: none;
            }
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .step-line {
                display: none;
            }
        }
        @media (max-width: 768px) {
            .page-banner {
                padding: 60px 0 50px;
            }
            .page-banner h1 {
                font-size: 2rem;
            }
            .page-banner p {
                font-size: 0.95rem;
            }
            .section {
                padding: 60px 0;
            }
            .section-head h2 {
                font-size: 1.6rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .cta-card {
                padding: 40px 24px;
            }
            .cta-card h2 {
                font-size: 1.6rem;
            }
            .tips-card,
            .warning-card {
                padding: 24px;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .site-logo {
                font-size: 1.05rem;
            }
            .steps-grid {
                grid-template-columns: 1fr;
            }
            .page-banner h1 {
                font-size: 1.6rem;
            }
            .banner-btns {
                flex-direction: column;
                align-items: center;
            }
            .btn-primary,
            .btn-outline-light {
                width: 100%;
                justify-content: center;
            }
            .stats-section .grid-x {
                display: grid;
                gap: 12px;
                grid-template-columns: 1fr 1fr;
            }
            .stat-card {
                padding: 20px 14px;
            }
            .stat-num {
                font-size: 1.6rem;
            }
        }

/* roulang page: article */
:root{
    --primary:#0f2b46;
    --primary-soft:#173a5c;
    --primary-dark:#091e31;
    --accent:#e8a23d;
    --accent-hover:#d18f2a;
    --bg:#f7f8fa;
    --bg-white:#ffffff;
    --text:#1a1f36;
    --text-muted:#5a6276;
    --border:#e4e7ec;
    --radius:14px;
    --radius-sm:8px;
    --shadow:0 2px 14px rgba(15,43,70,.08);
    --shadow-lg:0 14px 36px rgba(15,43,70,.14);
    --transition:all .3s ease;
    --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}
button{font-family:var(--font);cursor:pointer;border:none;background:none}
input{font-family:var(--font)}
:focus-visible{outline:3px solid rgba(232,162,61,.45);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* Header & Nav */
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(16px);border-bottom:1px solid var(--border);box-shadow:0 1px 6px rgba(15,43,70,.04)}
.nav-bar{display:flex;align-items:center;gap:32px;height:72px;flex-wrap:nowrap}
.site-logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.26rem;color:var(--primary);letter-spacing:-.5px;white-space:nowrap}
.site-logo i{color:var(--accent);font-size:1.2rem}
.logo-badge{background:var(--accent);color:#fff;font-size:.68rem;font-weight:700;padding:2px 8px;border-radius:20px;letter-spacing:.5px;text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:6px;flex:1}
.nav-link{padding:8px 18px;border-radius:var(--radius-sm);font-weight:600;font-size:.95rem;color:var(--text-muted);transition:var(--transition);position:relative}
.nav-link:hover{color:var(--primary);background:rgba(232,162,61,.08)}
.nav-link.active{color:var(--primary);background:rgba(232,162,61,.12)}
.nav-link.active::after{content:"";position:absolute;bottom:0;left:50%;transform:translateX(-50%);width:20px;height:3px;background:var(--accent);border-radius:3px}
.nav-right{display:flex;align-items:center;gap:14px}
.search-box{position:relative;display:flex;align-items:center}
.search-box input{width:200px;padding:9px 14px 9px 36px;border:1px solid var(--border);border-radius:30px;background:#f2f4f7;font-size:.87rem;transition:var(--transition)}
.search-box input:focus{background:#fff;border-color:var(--accent);box-shadow:0 0 0 3px rgba(232,162,61,.12);width:240px;outline:none}
.search-box i{position:absolute;left:14px;color:var(--text-muted);font-size:.8rem}
.btn-nav{display:inline-flex;align-items:center;gap:8px;background:var(--primary);color:#fff;font-weight:600;font-size:.88rem;padding:10px 20px;border-radius:30px;transition:var(--transition);box-shadow:0 2px 8px rgba(15,43,70,.18)}
.btn-nav:hover{background:var(--primary-soft);transform:translateY(-2px);box-shadow:0 6px 20px rgba(15,43,70,.25)}
.btn-nav i{font-size:.8rem}
.nav-toggle{display:none;font-size:1.4rem;color:var(--primary);padding:6px;border-radius:8px}
.nav-toggle:hover{background:rgba(15,43,70,.06)}

/* Breadcrumb */
.breadcrumb{padding:26px 0 0;font-size:.86rem;color:var(--text-muted);display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.breadcrumb a{color:var(--text-muted);transition:var(--transition)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:#c0c5d0}
.breadcrumb .current{color:var(--primary);font-weight:600}

/* Article Hero */
.article-hero{position:relative;padding:48px 0 64px;background-color:var(--primary);background-image:linear-gradient(rgba(9,30,49,.82),rgba(15,43,70,.88)),url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;color:#fff}
.article-hero .breadcrumb a{color:rgba(255,255,255,.75)}
.article-hero .breadcrumb a:hover{color:var(--accent)}
.article-hero .breadcrumb .sep{color:rgba(255,255,255,.4)}
.article-hero .breadcrumb .current{color:#fff}
.article-heading{margin-top:28px;max-width:860px}
.badge-category{display:inline-block;background:var(--accent);color:#fff;font-size:.75rem;font-weight:700;padding:5px 16px;border-radius:30px;letter-spacing:1px;text-transform:uppercase;margin-bottom:18px}
.article-heading h1{font-size:2.4rem;font-weight:800;line-height:1.3;margin-bottom:18px;letter-spacing:-.5px}
.article-meta{display:flex;align-items:center;gap:24px;font-size:.85rem;color:rgba(255,255,255,.75);margin-bottom:18px;flex-wrap:wrap}
.article-meta i{margin-right:6px;color:var(--accent)}
.article-summary{font-size:1.05rem;color:rgba(255,255,255,.85);line-height:1.8;max-width:700px;background:rgba(255,255,255,.08);padding:18px 22px;border-radius:var(--radius-sm);border-left:4px solid var(--accent)}

/* Article Section */
.article-section{padding:48px 0 24px}
.article-wrapper{display:flex;gap:40px;align-items:flex-start}
.article-main{flex:1;min-width:0;background:var(--bg-white);border-radius:var(--radius);box-shadow:var(--shadow);padding:0;overflow:hidden}
.article-card{padding:40px 44px}
.article-body{font-size:1.02rem;line-height:1.9;color:var(--text)}
.article-body p{margin-bottom:1.5em}
.article-body h2{font-size:1.5rem;color:var(--primary);margin:2em 0 .8em;font-weight:700;padding-left:14px;border-left:4px solid var(--accent);line-height:1.4}
.article-body h3{font-size:1.2rem;color:var(--primary);margin:1.8em 0 .6em;font-weight:700}
.article-body h4{font-size:1.05rem;color:var(--primary);margin:1.5em 0 .5em;font-weight:700}
.article-body ul,.article-body ol{margin:0 0 1.5em 1.4em}
.article-body ul li{list-style:disc;margin-bottom:.5em}
.article-body ol li{list-style:decimal;margin-bottom:.5em}
.article-body a{color:var(--accent-hover);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--primary)}
.article-body blockquote{border-left:4px solid var(--accent);background:#fdf6eb;padding:1.2em 1.6em;border-radius:0 var(--radius-sm) var(--radius-sm) 0;margin:1.8em 0;color:#6b5d45;font-style:italic}
.article-body img{border-radius:var(--radius);margin:1.6em 0;box-shadow:var(--shadow)}
.article-body code{background:#f0f2f5;padding:2px 8px;border-radius:4px;font-size:.9em;color:var(--primary)}
.article-body pre{background:var(--primary-dark);color:#e8ecf1;padding:20px;border-radius:var(--radius-sm);overflow-x:auto;margin:1.6em 0}
.article-body pre code{background:none;color:inherit;padding:0}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:.94rem}
.article-body th{background:var(--primary);color:#fff;padding:12px 16px;text-align:left;font-weight:600}
.article-body td{border-bottom:1px solid var(--border);padding:11px 16px}
.article-body tr:hover td{background:#f8fafc}
.article-body hr{border:none;height:1px;background:var(--border);margin:2.4em 0}

/* Article Tags */
.article-tags{display:flex;align-items:center;gap:10px;padding:24px 44px;border-top:1px solid var(--border);flex-wrap:wrap}
.article-tags span{font-weight:600;color:var(--text-muted);font-size:.88rem}
.article-tags a{display:inline-block;background:#f2f4f7;color:var(--text-muted);font-size:.8rem;font-weight:500;padding:5px 14px;border-radius:20px;transition:var(--transition)}
.article-tags a:hover{background:var(--accent);color:#fff}

/* Sidebar */
.article-sidebar{width:340px;flex-shrink:0;display:flex;flex-direction:column;gap:24px}
.sidebar-widget{background:var(--bg-white);border-radius:var(--radius);box-shadow:var(--shadow);padding:26px;transition:var(--transition)}
.sidebar-widget:hover{box-shadow:var(--shadow-lg)}
.sidebar-widget h3{font-size:1.08rem;font-weight:700;color:var(--primary);margin-bottom:14px;display:flex;align-items:center;gap:10px}
.sidebar-widget h3 i{color:var(--accent);font-size:1rem}
.sidebar-widget img{border-radius:var(--radius-sm);margin-bottom:16px;object-fit:cover;height:160px;width:100%}
.sidebar-widget p{font-size:.88rem;color:var(--text-muted);line-height:1.7;margin-bottom:16px}
.sidebar-widget .btn-custom{width:100%;justify-content:center}
.sidebar-widget ul li{font-size:.88rem;color:var(--text-muted);padding:8px 0;border-bottom:1px dashed var(--border)}
.sidebar-widget ul li:last-child{border-bottom:none}
.sidebar-widget ul li i{margin-right:8px;color:var(--accent);font-size:.8rem}
.sidebar-widget ul li a{transition:var(--transition)}
.sidebar-widget ul li a:hover{color:var(--accent);padding-left:4px}
.safety-tips{background:#fdf8f2;border:1px solid #f3e2cd}
.safety-tips h3{color:#b45309}
.safety-tips ul li i{color:#eab308}

/* Buttons */
.btn-custom{display:inline-flex;align-items:center;gap:8px;background:var(--primary);color:#fff;font-weight:600;font-size:.9rem;padding:11px 24px;border-radius:30px;transition:var(--transition);box-shadow:0 3px 10px rgba(15,43,70,.18)}
.btn-custom:hover{background:var(--primary-soft);transform:translateY(-2px);box-shadow:0 8px 24px rgba(15,43,70,.25)}
.btn-custom i{font-size:.85rem}
.btn-outline{display:inline-flex;align-items:center;gap:8px;background:transparent;color:var(--primary);font-weight:600;font-size:.9rem;padding:11px 24px;border-radius:30px;border:2px solid var(--primary);transition:var(--transition)}
.btn-outline:hover{background:var(--primary);color:#fff;transform:translateY(-2px)}

/* Category Nav */
.category-nav-section{padding:60px 0 20px}
.section-header{text-align:center;margin-bottom:44px}
.section-header h2{font-size:2rem;font-weight:800;color:var(--primary);letter-spacing:-.5px;margin-bottom:8px}
.section-header p{color:var(--text-muted);font-size:.98rem}
.category-item{display:flex;align-items:center;gap:22px;background:var(--bg-white);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px;transition:var(--transition);height:100%}
.category-item:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.category-item img{width:120px;height:100px;object-fit:cover;border-radius:var(--radius-sm);flex-shrink:0}
.category-item h3{font-size:1.15rem;font-weight:700;color:var(--primary);margin-bottom:6px}
.category-item p{font-size:.87rem;color:var(--text-muted);margin-bottom:10px;line-height:1.6}
.link-more{font-size:.85rem;font-weight:600;color:var(--accent-hover)}
.link-more i{transition:var(--transition)}
.category-item:hover .link-more i{transform:translateX(4px)}

/* FAQ */
.faq-section{padding:40px 0 20px}
.faq-block{background:var(--bg-white);border-radius:var(--radius);box-shadow:var(--shadow);padding:36px 40px}
.faq-item{border-bottom:1px solid var(--border);padding:20px 0}
.faq-item:last-child{border-bottom:none}
.faq-item h4{font-size:1rem;font-weight:700;color:var(--primary);margin-bottom:8px;display:flex;align-items:center;gap:10px}
.faq-item h4 i{color:var(--accent);font-size:.9rem}
.faq-item p{font-size:.9rem;color:var(--text-muted);line-height:1.75;padding-left:26px}

/* CTA */
.cta-section{position:relative;padding:70px 0;background-color:var(--primary);background-image:linear-gradient(rgba(9,30,49,.85),rgba(15,43,70,.9)),url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;text-align:center;color:#fff;margin-top:40px}
.cta-section h2{font-size:2rem;font-weight:800;margin-bottom:12px}
.cta-section p{color:rgba(255,255,255,.8);font-size:1.02rem;margin-bottom:30px;max-width:640px;margin-left:auto;margin-right:auto}
.btn-cta{display:inline-flex;align-items:center;gap:10px;background:var(--accent);color:#fff;font-weight:700;font-size:1rem;padding:16px 38px;border-radius:40px;transition:var(--transition);box-shadow:0 6px 20px rgba(232,162,61,.4)}
.btn-cta:hover{background:var(--accent-hover);transform:translateY(-3px);box-shadow:0 10px 30px rgba(232,162,61,.5)}
.btn-cta i{font-size:.9rem}

/* Not Found */
.not-found-block{text-align:center;padding:80px 30px;background:var(--bg-white);border-radius:var(--radius);box-shadow:var(--shadow)}
.not-found-block i{font-size:3.2rem;color:var(--accent);margin-bottom:20px}
.not-found-block h2{font-size:1.6rem;color:var(--primary);margin-bottom:10px}
.not-found-block p{color:var(--text-muted);margin-bottom:28px}
.not-found-block .btn-custom{padding:14px 36px}

/* Footer */
.site-footer{background:var(--primary-dark);color:rgba(255,255,255,.78);padding:60px 0 0;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:1.25rem;font-weight:800;color:#fff;margin-bottom:14px}
.footer-brand i{color:var(--accent)}
.footer-desc{font-size:.89rem;line-height:1.75;color:rgba(255,255,255,.6);max-width:340px}
.site-footer h4{color:#fff;font-size:1rem;font-weight:700;margin-bottom:18px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:.88rem;color:rgba(255,255,255,.65);transition:var(--transition);display:inline-flex;align-items:center;gap:6px}
.footer-links a:hover{color:var(--accent);padding-left:4px}
.footer-links a i{font-size:.7rem;color:var(--accent)}
.footer-bottom{padding:22px 0;text-align:center;font-size:.82rem;color:rgba(255,255,255,.5)}

/* Responsive */
@media screen and (max-width:1024px){
    .nav-links{display:none}
    .nav-open .nav-links{display:flex;position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;padding:16px 24px;box-shadow:0 12px 28px rgba(15,43,70,.12);border-bottom:1px solid var(--border);gap:8px;z-index:99}
    .nav-open .nav-links .nav-link{width:100%;text-align:left;padding:12px 16px}
    .nav-toggle{display:block}
    .search-box input{width:150px}
    .search-box input:focus{width:180px}
    .article-wrapper{flex-direction:column}
    .article-sidebar{width:100%;flex-direction:row;flex-wrap:wrap;gap:20px}
    .sidebar-widget{flex:1;min-width:240px}
    .btn-nav{display:none}
}
@media screen and (max-width:768px){
    .nav-bar{height:64px;gap:16px}
    .site-logo{font-size:1.05rem}
    .logo-badge{display:none}
    .search-box input{width:120px}
    .search-box input:focus{width:150px}
    .article-hero{padding:32px 0 48px}
    .article-heading h1{font-size:1.7rem}
    .article-card{padding:24px 20px}
    .article-tags{padding:18px 20px}
    .article-body{font-size:.95rem}
    .article-body h2{font-size:1.25rem}
    .category-item{flex-direction:column;text-align:center;padding:20px}
    .category-item img{width:100%;height:140px;object-fit:cover}
    .faq-block{padding:24px 20px}
    .footer-grid{grid-template-columns:1fr;gap:32px}
    .cta-section{padding:50px 20px}
    .cta-section h2{font-size:1.5rem}
}
@media screen and (max-width:520px){
    .container{padding:0 16px}
    .nav-links .nav-link{font-size:.88rem}
    .search-box{display:none}
    .article-meta{flex-direction:column;gap:8px;align-items:flex-start}
    .article-summary{font-size:.92rem;padding:14px 16px}
    .article-sidebar{flex-direction:column}
    .sidebar-widget{min-width:100%}
    .article-body table{font-size:.8rem}
    .article-body th,.article-body td{padding:8px 10px}
    .breadcrumb{font-size:.78rem}
    .article-heading h1{font-size:1.4rem}
    .section-header h2{font-size:1.5rem}
    .footer-bottom p{font-size:.75rem}
}

/* roulang page: category2 */
:root {
  --primary: #163b73;
  --primary-2: #0f2a50;
  --accent: #10a6a4;
  --accent-dark: #0b8a88;
  --accent-light: #e4f6f6;
  --warning: #e07b39;
  --warning-light: #fff3e8;
  --ink: #182338;
  --ink-2: #41506e;
  --ink-3: #7a87a1;
  --bg: #f5f8fc;
  --card: #ffffff;
  --line: #e5ebf4;
  --r-lg: 22px;
  --r-md: 14px;
  --r-sm: 10px;
  --shadow: 0 6px 24px rgba(22, 59, 115, .07);
  --shadow-lg: 0 18px 44px rgba(22, 59, 115, .13);
  --container-w: 1200px;
  --tr: .28s cubic-bezier(.25, .8, .25, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

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

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

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

section {
  position: relative;
}

/* ===== Header / Nav ===== */
.site-header {
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 4px 18px rgba(22, 59, 115, .05);
}

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

.site-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.28rem;
  color: var(--primary);
  letter-spacing: .3px;
  white-space: nowrap;
}

.site-logo i {
  font-size: 1.35rem;
  color: var(--accent);
}

.logo-badge {
  display: inline-block;
  background: var(--accent-light);
  color: var(--accent-dark);
  font-size: .7rem;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 40px;
  letter-spacing: .5px;
  border: 1px solid rgba(16, 166, 164, .18);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
}

.nav-link {
  font-size: .95rem;
  font-weight: 600;
  color: var(--ink-2);
  padding: 8px 16px;
  border-radius: var(--r-sm);
  transition: all var(--tr);
  position: relative;
}

.nav-link:hover {
  color: var(--primary);
  background: var(--bg);
}

.nav-link.active {
  color: var(--primary);
  background: var(--accent-light);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-left: auto;
}

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

.search-box input {
  width: 190px;
  height: 38px;
  border: 1px solid var(--line);
  border-radius: 60px;
  background: var(--bg);
  padding: 0 38px 0 14px;
  font-size: .85rem;
  color: var(--ink);
  outline: none;
  transition: all var(--tr);
}

.search-box input:focus {
  border-color: var(--accent);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(16, 166, 164, .12);
  width: 220px;
}

.search-box i {
  position: absolute;
  right: 14px;
  color: var(--ink-3);
  font-size: .85rem;
  pointer-events: none;
}

.btn-nav {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: #fff;
  font-size: .88rem;
  font-weight: 700;
  padding: 10px 20px;
  border-radius: 50px;
  transition: all var(--tr);
  white-space: nowrap;
  box-shadow: 0 4px 14px rgba(22, 59, 115, .22);
}

.btn-nav:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(16, 166, 164, .28);
}

.nav-toggle {
  display: none;
  background: var(--bg);
  border: 1px solid var(--line);
  width: 42px;
  height: 42px;
  border-radius: 12px;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1.1rem;
  cursor: pointer;
  transition: all var(--tr);
}

.nav-toggle:hover {
  background: var(--accent-light);
}

/* ===== Hero ===== */
.page-hero {
  background-size: cover;
  background-position: center;
  padding: 108px 0 120px;
  position: relative;
  isolation: isolate;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(8, 20, 40, .9) 0%, rgba(10, 28, 55, .78) 54%, rgba(16, 166, 164, .38) 100%);
  z-index: -1;
}

.page-hero .container {
  max-width: 980px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, .78);
  font-size: .85rem;
  margin-bottom: 20px;
  letter-spacing: .3px;
}

.breadcrumb a {
  color: rgba(255, 255, 255, .8);
}

.breadcrumb a:hover {
  color: #fff;
}

.page-hero h1 {
  font-size: clamp(1.9rem, 5vw, 3.1rem);
  line-height: 1.22;
  color: #fff;
  font-weight: 800;
  letter-spacing: .5px;
  margin-bottom: 18px;
}

.page-hero .hero-sub {
  color: rgba(255, 255, 255, .88);
  font-size: clamp(1rem, 2.4vw, 1.18rem);
  line-height: 1.9;
  max-width: 680px;
  margin-bottom: 26px;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 32px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, .14);
  border: 1px solid rgba(255, 255, 255, .25);
  backdrop-filter: blur(6px);
  color: #fff;
  font-size: .82rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 40px;
}

.hero-tag i {
  color: #6ee7e5;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.btn-primary-lg {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: .95rem;
  padding: 14px 30px;
  border-radius: 50px;
  transition: all var(--tr);
  box-shadow: 0 10px 26px rgba(16, 166, 164, .34);
}

.btn-primary-lg:hover {
  background: #0c9090;
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 14px 32px rgba(16, 166, 164, .4);
}

.btn-ghost-lg {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  background: rgba(255, 255, 255, .1);
  border: 1.5px solid rgba(255, 255, 255, .4);
  color: #fff;
  font-weight: 600;
  font-size: .95rem;
  padding: 14px 30px;
  border-radius: 50px;
  transition: all var(--tr);
}

.btn-ghost-lg:hover {
  background: rgba(255, 255, 255, .18);
  border-color: #fff;
  color: #fff;
  transform: translateY(-3px);
}

/* ===== Stats ===== */
.stats-section {
  padding: 80px 0 30px;
}

.stats-grid {
  margin-top: 10px;
}

.stat-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 30px 26px;
  text-align: center;
  height: 100%;
  box-shadow: var(--shadow);
  transition: all var(--tr);
  position: relative;
  overflow: hidden;
}

.stat-card::after {
  content: '';
  position: absolute;
  right: -30px;
  top: -30px;
  width: 90px;
  height: 90px;
  background: var(--accent-light);
  border-radius: 50%;
  opacity: .6;
}

.stat-icon {
  width: 52px;
  height: 52px;
  background: var(--accent-light);
  color: var(--accent-dark);
  border-radius: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: 16px;
}

.stat-num {
  font-size: 2.1rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
  letter-spacing: -1px;
}

.stat-label {
  font-size: .88rem;
  color: var(--ink-3);
  margin-top: 8px;
}

/* ===== Section Head ===== */
.section {
  padding: 72px 0;
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 48px;
}

.section-eyebrow {
  display: inline-block;
  background: var(--accent-light);
  color: var(--accent-dark);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .8px;
  padding: 5px 14px;
  border-radius: 40px;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.section-head h2 {
  font-size: clamp(1.6rem, 3.6vw, 2.3rem);
  font-weight: 800;
  color: var(--ink);
  line-height: 1.28;
  margin-bottom: 14px;
  letter-spacing: -.3px;
}

.section-head p {
  color: var(--ink-3);
  font-size: 1rem;
  line-height: 1.85;
}

/* ===== Topics ===== */
.topics-section {
  padding: 72px 0 20px;
}

.topics-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.topic-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 50px;
  padding: 10px 20px;
  font-size: .9rem;
  font-weight: 600;
  color: var(--ink-2);
  transition: all var(--tr);
  box-shadow: 0 2px 8px rgba(22, 59, 115, .04);
  cursor: pointer;
}

.topic-tag i {
  color: var(--accent);
  font-size: .85rem;
}

.topic-tag:hover {
  border-color: var(--accent);
  color: var(--accent-dark);
  background: var(--accent-light);
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(16, 166, 164, .14);
}

/* ===== FAQ Cards ===== */
.faq-cards-section {
  padding: 72px 0;
}

.faq-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
  transition: all var(--tr);
  position: relative;
}

.faq-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(16, 166, 164, .45);
}

.faq-card-img {
  height: 180px;
  overflow: hidden;
  position: relative;
}

.faq-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

.faq-card:hover .faq-card-img img {
  transform: scale(1.06);
}

.faq-card-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 20, 40, 0) 45%, rgba(8, 20, 40, .22) 100%);
}

.faq-card-img .img-badge {
  position: absolute;
  left: 14px;
  bottom: 14px;
  z-index: 1;
  background: rgba(255, 255, 255, .95);
  color: var(--primary);
  font-size: .76rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 40px;
  box-shadow: 0 4px 12px rgba(8, 20, 40, .18);
}

.faq-card-body {
  padding: 24px 24px 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.faq-card-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-light);
  color: var(--accent-dark);
  font-size: .75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 40px;
  width: max-content;
  margin-bottom: 14px;
}

.faq-card-body h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.5;
  margin-bottom: 10px;
  letter-spacing: -.2px;
}

.faq-card-body p {
  font-size: .88rem;
  color: var(--ink-3);
  line-height: 1.8;
  flex: 1;
  margin-bottom: 18px;
}

.faq-card-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .86rem;
  font-weight: 700;
  color: var(--primary);
}

.faq-card-link i {
  transition: transform var(--tr);
}

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

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

/* ===== Accordion ===== */
.accordion-section {
  padding: 72px 0;
  background: var(--card);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.container-narrow {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 20px;
}

.faq-accordion {
  list-style: none;
  margin: 0;
}

.faq-accordion .accordion-item {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color var(--tr), box-shadow var(--tr);
}

.faq-accordion .accordion-item.is-active {
  border-color: rgba(16, 166, 164, .5);
  box-shadow: 0 8px 24px rgba(22, 59, 115, .09);
}

.faq-accordion .accordion-title {
  background: transparent;
  border: 0;
  color: var(--ink);
  font-weight: 700;
  font-size: 1rem;
  line-height: 1.6;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  transition: all var(--tr);
}

.faq-accordion .accordion-title:hover {
  background: var(--accent-light);
  color: var(--primary);
}

.faq-accordion .accordion-title:focus {
  outline: 3px solid rgba(16, 166, 164, .3);
  outline-offset: -3px;
}

.faq-accordion .acc-icon {
  color: var(--accent);
  font-size: .85rem;
  flex-shrink: 0;
  transition: transform var(--tr);
}

.faq-accordion .accordion-item.is-active .acc-icon {
  transform: rotate(180deg);
}

.faq-accordion .accordion-content {
  background: transparent;
  border: 0;
  color: var(--ink-2);
  padding: 0 24px 22px;
  font-size: .9rem;
  line-height: 1.9;
}

.accordion-footnote {
  display: flex;
  align-items: center;
  gap: 10px;
  justify-content: center;
  background: var(--warning-light);
  border: 1px solid rgba(224, 123, 57, .25);
  color: #a55525;
  font-size: .86rem;
  padding: 12px 20px;
  border-radius: var(--r-md);
  margin-top: 22px;
}

.accordion-footnote i {
  color: var(--warning);
}

/* ===== Tips ===== */
.tips-section {
  padding: 72px 0;
}

.tips-panel {
  background: var(--primary-2);
  background-image: linear-gradient(130deg, #0f2a50 0%, #163b73 100%);
  border-radius: var(--r-lg);
  padding: 52px 48px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  position: relative;
  overflow: hidden;
}

.tips-panel::before {
  content: '';
  position: absolute;
  right: -80px;
  top: -80px;
  width: 220px;
  height: 220px;
  background: rgba(16, 166, 164, .12);
  border-radius: 50%;
}

.tips-panel::after {
  content: '';
  position: absolute;
  left: -50px;
  bottom: -70px;
  width: 150px;
  height: 150px;
  background: rgba(16, 166, 164, .08);
  border-radius: 50%;
}

.tip-item {
  position: relative;
  z-index: 1;
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: var(--r-md);
  padding: 26px 24px;
  transition: all var(--tr);
}

.tip-item:hover {
  background: rgba(255, 255, 255, .1);
  transform: translateY(-4px);
}

.tip-icon {
  width: 50px;
  height: 50px;
  background: rgba(16, 166, 164, .2);
  color: #6ee7e5;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  margin-bottom: 16px;
}

.tip-title {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.tip-text {
  color: rgba(255, 255, 255, .78);
  font-size: .85rem;
  line-height: 1.8;
}

/* ===== CTA ===== */
.cta-section {
  padding: 72px 0;
}

.cta-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
  padding: 64px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
  max-width: 920px;
  margin: 0 auto;
}

.cta-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  height: 5px;
  width: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
}

.cta-card::after {
  content: '';
  position: absolute;
  right: -70px;
  bottom: -70px;
  width: 180px;
  height: 180px;
  background: var(--accent-light);
  border-radius: 50%;
  opacity: .6;
}

.cta-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  background: var(--accent-light);
  color: var(--accent-dark);
  border-radius: 20px;
  font-size: 1.5rem;
  margin-bottom: 22px;
}

.cta-title {
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--ink);
  margin-bottom: 12px;
  line-height: 1.35;
}

.cta-text {
  color: var(--ink-3);
  font-size: .98rem;
  max-width: 580px;
  margin: 0 auto 30px;
  line-height: 1.9;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  position: relative;
  z-index: 1;
}

.btn-soft {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  font-size: .92rem;
  padding: 13px 28px;
  border-radius: 50px;
  transition: all var(--tr);
  box-shadow: 0 8px 20px rgba(22, 59, 115, .2);
}

.btn-soft:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(16, 166, 164, .28);
}

.btn-soft-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: 1.5px solid var(--line);
  color: var(--ink-2);
  font-weight: 700;
  font-size: .92rem;
  padding: 13px 28px;
  border-radius: 50px;
  transition: all var(--tr);
}

.btn-soft-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--bg);
  transform: translateY(-3px);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--primary-2);
  color: rgba(255, 255, 255, .82);
  padding: 64px 0 0;
  border-top: 4px solid var(--accent);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
}

.footer-brand {
  font-size: 1.2rem;
  font-weight: 800;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.footer-brand i {
  color: #6ee7e5;
}

.footer-desc {
  font-size: .87rem;
  line-height: 1.9;
  color: rgba(255, 255, 255, .68);
  max-width: 360px;
}

.site-footer h4 {
  color: #fff;
  font-size: .95rem;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: .3px;
}

.footer-links {
  list-style: none;
  margin: 0;
  display: grid;
  gap: 10px;
}

.footer-links a {
  color: rgba(255, 255, 255, .7);
  font-size: .86rem;
  transition: all var(--tr);
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.footer-links a::before {
  content: '›';
  color: #6ee7e5;
  font-weight: 700;
}

.footer-links a:hover {
  color: #fff;
  transform: translateX(3px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .1);
  padding: 20px 0;
  text-align: center;
  font-size: .82rem;
  color: rgba(255, 255, 255, .5);
}

.footer-bottom a {
  color: rgba(255, 255, 255, .7);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .tips-panel {
    grid-template-columns: repeat(3, 1fr);
    padding: 40px 30px;
  }

  .search-box input {
    width: 150px;
  }

  .search-box input:focus {
    width: 170px;
  }
}

@media (max-width: 860px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 16px 20px 22px;
    gap: 6px;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 24px 40px rgba(22, 59, 115, .14);
    display: none;
  }

  .site-header.nav-open .nav-links {
    display: flex;
  }

  .nav-link {
    padding: 12px 16px;
    border-radius: var(--r-sm);
  }

  .search-box {
    display: none;
  }

  .btn-nav {
    padding: 9px 16px;
    font-size: .82rem;
  }

  .stats-section {
    padding: 56px 0 16px;
  }

  .section {
    padding: 54px 0;
  }

  .topics-section,
  .faq-cards-section,
  .accordion-section,
  .tips-section,
  .cta-section {
    padding: 54px 0;
  }

  .tips-panel {
    grid-template-columns: 1fr;
    padding: 32px 24px;
  }

  .cta-card {
    padding: 44px 28px;
  }
}

@media (max-width: 640px) {
  .site-logo {
    font-size: 1.06rem;
  }

  .logo-badge {
    display: none;
  }

  .btn-nav {
    padding: 8px 14px;
    font-size: .78rem;
  }

  .btn-nav i {
    display: none;
  }

  .page-hero {
    padding: 72px 0 84px;
  }

  .page-hero h1 {
    font-size: 1.7rem;
  }

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

  .btn-primary-lg,
  .btn-ghost-lg {
    width: 100%;
    justify-content: center;
  }

  .stat-card {
    margin-bottom: 14px;
  }

  .section-head {
    margin-bottom: 32px;
  }

  .faq-card-body {
    padding: 20px 18px 18px;
  }

  .faq-accordion .accordion-title {
    font-size: .9rem;
    padding: 16px 18px;
  }

  .faq-accordion .accordion-content {
    padding: 0 18px 18px;
    font-size: .84rem;
  }

  .accordion-footnote {
    flex-wrap: wrap;
    text-align: center;
    padding: 12px 14px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-bottom: 24px;
  }

  .footer-bottom {
    padding: 18px 12px;
    line-height: 1.7;
  }
}

@media (max-width: 420px) {
  .container {
    padding: 0 16px;
  }

  .nav-bar {
    gap: 10px;
  }

  .site-logo i {
    font-size: 1.05rem;
  }

  .cta-actions {
    flex-direction: column;
    width: 100%;
  }

  .btn-soft,
  .btn-soft-outline {
    width: 100%;
    justify-content: center;
  }
}