/* roulang page: index */
:root {
    --primary: #1e40af;
    --primary-dark: #1e3a8a;
    --primary-light: #3b82f6;
    --accent: #f59e0b;
    --accent-dark: #d97706;
    --bg: #f0f4f8;
    --bg-white: #ffffff;
    --bg-dark: #0f172a;
    --bg-gray: #f8fafc;
    --text: #1e293b;
    --text-light: #64748b;
    --text-white: #ffffff;
    --border: #e2e8f0;
    --radius: 16px;
    --radius-sm: 8px;
    --radius-lg: 24px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,.08);
    --shadow: 0 4px 20px rgba(0,0,0,.06);
    --shadow-lg: 0 12px 40px rgba(0,0,0,.10);
    --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Segoe UI", Roboto, "Helvetica Neue", "Microsoft YaHei", sans-serif;
}

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

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

body { font-family: var(--font); color: var(--text); background: var(--bg); line-height: 1.6; -webkit-font-smoothing: antialiased; }

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color .25s ease; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select { font-family: inherit; outline: none; }

.container { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 24px; }

/* Header */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.95); backdrop-filter: blur(12px); border-bottom: 1px solid var(--border); box-shadow: var(--shadow-sm); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 70px; gap: 32px; }
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-icon { width: 40px; height: 40px; background: linear-gradient(135deg, var(--primary), var(--primary-light)); border-radius: 12px; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 18px; }
.logo-text { font-size: 20px; font-weight: 800; color: var(--text); letter-spacing: .5px; }
.logo-text span { color: var(--primary); }
.header-nav { display: flex; align-items: center; gap: 8px; }
.nav-item { display: flex; align-items: center; gap: 6px; font-size: 15px; font-weight: 500; color: var(--text); padding: 10px 16px; border-radius: var(--radius-sm); position: relative; cursor: pointer; transition: background .2s, color .2s; }
.nav-item i { font-size: 14px; opacity: .7; }
.nav-item:hover { background: rgba(30,64,175,.06); color: var(--primary); }
.nav-item.active { background: rgba(30,64,175,.10); color: var(--primary); font-weight: 600; }
.nav-item.active::after { content: ''; position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); width: 20px; height: 3px; background: var(--primary); border-radius: 3px 3px 0 0; }
.nav-cta { display: inline-flex; align-items: center; gap: 6px; background: var(--primary); color: #fff; padding: 10px 20px; border-radius: var(--radius-sm); font-weight: 600; font-size: 14px; transition: background .25s, transform .25s, box-shadow .25s; }
.nav-cta:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 6px 16px rgba(30,64,175,.3); color: #fff; }

/* Mega Panel */
.mega-wrap { position: relative; }
.mega-panel { position: absolute; top: 100%; left: 50%; transform: translateX(-50%) translateY(12px); background: var(--bg-white); border-radius: var(--radius); box-shadow: var(--shadow-lg); border: 1px solid var(--border); padding: 20px; width: 480px; display: flex; gap: 20px; opacity: 0; visibility: hidden; transition: all .3s ease; z-index: 99; }
.mega-wrap:hover .mega-panel { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(6px); }
.mega-col { flex: 1; }
.mega-title { font-size: 13px; font-weight: 700; color: var(--text-light); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 12px; padding-bottom: 8px; border-bottom: 1px solid var(--border); }
.mega-link { display: flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 500; color: var(--text); padding: 8px 10px; border-radius: var(--radius-sm); transition: all .2s; }
.mega-link i { color: var(--primary); font-size: 13px; width: 18px; }
.mega-link:hover { background: rgba(30,64,175,.06); color: var(--primary); transform: translateX(2px); }

.mobile-toggle { display: none; width: 44px; height: 44px; border-radius: 10px; background: rgba(30,64,175,.08); color: var(--primary); font-size: 20px; align-items: center; justify-content: center; }

/* Mobile Nav */
.mobile-nav { display: none; background: #fff; border-top: 1px solid var(--border); padding: 12px 24px 20px; }
.mobile-nav .nav-item { display: flex; width: 100%; padding: 12px 14px; border-radius: var(--radius-sm); }
.mobile-nav .nav-item:hover { background: rgba(30,64,175,.06); }
.mobile-nav .nav-cta { margin-top: 8px; justify-content: center; width: 100%; }

/* Hero */
.hero { position: relative; background: linear-gradient(135deg, #1e3a8a 0%, #1e40af 40%, #1d4ed8 100%); overflow: hidden; padding: 80px 0 120px; }
.hero-bg { position: absolute; inset: 0; background-image: url('/assets/images/backpic/back-1.png'); background-size: cover; background-position: center; opacity: .25; }
.hero-bg::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent, rgba(15,23,42,.6)); }
.hero .container { position: relative; z-index: 2; display: grid; grid-template-columns: 1.2fr .8fr; gap: 60px; align-items: center; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.2); padding: 8px 18px; border-radius: 100px; font-size: 13px; color: #fbbf24; font-weight: 500; margin-bottom: 20px; backdrop-filter: blur(4px); }
.hero-title { font-size: 48px; line-height: 1.25; font-weight: 800; color: #fff; letter-spacing: 1px; margin-bottom: 20px; }
.hero-title span { color: #fbbf24; }
.hero-desc { font-size: 17px; line-height: 1.8; color: rgba(255,255,255,.88); margin-bottom: 32px; max-width: 600px; }
.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 32px; border-radius: 12px; font-weight: 600; font-size: 15px; transition: all .25s ease; border: 2px solid transparent; }
.btn-lg { padding: 16px 36px; font-size: 16px; }
.btn-primary { background: var(--accent); color: #0f172a; box-shadow: 0 4px 20px rgba(245,158,11,.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(245,158,11,.4); background: #fbbf24; color: #0f172a; }
.btn-outline-light { border-color: rgba(255,255,255,.4); color: #fff; background: transparent; }
.btn-outline-light:hover { border-color: #fff; background: rgba(255,255,255,.1); transform: translateY(-2px); }
.hero-card { background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.18); backdrop-filter: blur(16px); border-radius: var(--radius-lg); padding: 32px; box-shadow: 0 24px 64px rgba(0,0,0,.25); }
.hero-card-title { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 20px; display: flex; align-items: center; justify-content: space-between; }
.hero-card-title .tag-live { background: #ef4444; font-size: 11px; padding: 3px 10px; border-radius: 100px; color: #fff; font-weight: 600; animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .7; } }
.hero-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-bottom: 20px; }
.stat-box { background: rgba(255,255,255,.12); border-radius: 12px; padding: 14px; text-align: center; }
.stat-num { font-size: 26px; font-weight: 800; color: #fbbf24; line-height: 1.2; }
.stat-label { font-size: 12px; color: rgba(255,255,255,.65); margin-top: 4px; }
.hero-card-text { font-size: 13px; color: rgba(255,255,255,.7); line-height: 1.7; border-top: 1px solid rgba(255,255,255,.15); padding-top: 14px; }

/* Section common */
.section { padding: 88px 0; }
.section-gray { background: var(--bg-gray); }
.section-head { max-width: 720px; margin: 0 auto 52px; text-align: center; }
.section-tag { display: inline-flex; align-items: center; gap: 6px; background: rgba(30,64,175,.08); color: var(--primary); padding: 6px 16px; border-radius: 100px; font-size: 13px; font-weight: 600; margin-bottom: 16px; }
.section-title { font-size: 34px; font-weight: 800; color: var(--text); line-height: 1.4; letter-spacing: .5px; }
.section-title span { color: var(--primary); }
.section-subtitle { font-size: 16px; color: var(--text-light); line-height: 1.8; margin-top: 14px; }

/* Cards Grid - Featured */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.feat-card { background: var(--bg-white); border-radius: var(--radius); padding: 36px 28px; border: 1px solid var(--border); box-shadow: var(--shadow); transition: all .3s ease; position: relative; overflow: hidden; }
.feat-card::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 4px; background: linear-gradient(90deg, var(--primary), var(--primary-light)); opacity: 0; transition: opacity .3s; }
.feat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(30,64,175,.15); }
.feat-card:hover::before { opacity: 1; }
.feat-icon { width: 56px; height: 56px; background: linear-gradient(135deg, var(--primary), var(--primary-light)); border-radius: 14px; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 22px; margin-bottom: 22px; box-shadow: 0 8px 20px rgba(30,64,175,.2); }
.feat-card h3 { font-size: 19px; font-weight: 700; color: var(--text); margin-bottom: 12px; }
.feat-card p { font-size: 14px; line-height: 1.8; color: var(--text-light); margin-bottom: 16px; }
.feat-link { font-size: 14px; font-weight: 600; color: var(--primary); display: inline-flex; align-items: center; gap: 6px; }
.feat-link i { font-size: 12px; transition: transform .25s; }
.feat-link:hover i { transform: translateX(4px); }

/* Category cards */
.cate-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.cate-card { background: var(--bg-white); border-radius: var(--radius-lg); overflow: hidden; border: 1px solid var(--border); box-shadow: var(--shadow); transition: all .3s ease; }
.cate-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.cate-img { height: 200px; overflow: hidden; position: relative; }
.cate-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.cate-card:hover .cate-img img { transform: scale(1.06); }
.cate-img::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent, rgba(15,23,42,.25)); }
.cate-body { padding: 26px 26px 30px; }
.cate-badge { display: inline-flex; align-items: center; gap: 5px; background: rgba(30,64,175,.08); color: var(--primary); padding: 5px 12px; border-radius: 100px; font-size: 12px; font-weight: 600; margin-bottom: 14px; }
.cate-body h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; }
.cate-body p { font-size: 14px; color: var(--text-light); line-height: 1.75; margin-bottom: 18px; }
.cate-meta { display: flex; align-items: center; font-size: 13px; color: var(--text-light); gap: 18px; }

/* News list */
.news-wrap { display: grid; grid-template-columns: .45fr .55fr; gap: 48px; align-items: start; }
.news-list { display: flex; flex-direction: column; gap: 16px; }
.news-item { display: flex; gap: 18px; background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px 24px; transition: all .3s; cursor: pointer; }
.news-item:hover { box-shadow: var(--shadow); transform: translateX(4px); border-color: rgba(30,64,175,.2); }
.news-thumb { width: 110px; height: 84px; border-radius: 10px; overflow: hidden; flex-shrink: 0; }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-ct { flex: 1; display: flex; flex-direction: column; justify-content: center; }
.news-cate { display: inline-flex; align-items: center; color: var(--primary); font-size: 12px; font-weight: 600; margin-bottom: 6px; }
.news-ct h4 { font-size: 15px; font-weight: 600; line-height: 1.5; color: var(--text); margin-bottom: 6px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-ct p { font-size: 13px; color: var(--text-light); display: -webkit-box; -webkit-line-clamp: 1; -webkit-box-orient: vertical; overflow: hidden; }
.news-date { font-size: 12px; color: #94a3b8; display: flex; align-items: center; gap: 5px; margin-top: 6px; }
.news-sidebar { background: var(--bg-white); border-radius: var(--radius-lg); border: 1px solid var(--border); box-shadow: var(--shadow); padding: 30px; }
.sidebar-card { margin-bottom: 28px; }
.sidebar-card:last-child { margin-bottom: 0; }
.sidebar-title { font-size: 16px; font-weight: 700; margin-bottom: 16px; padding-bottom: 12px; border-bottom: 2px solid var(--primary); display: inline-block; }
.sidebar-list { display: flex; flex-direction: column; gap: 10px; }
.sidebar-list a { display: flex; align-items: center; gap: 8px; font-size: 14px; padding: 10px 12px; border-radius: var(--radius-sm); background: var(--bg-gray); color: var(--text); transition: all .25s; }
.sidebar-list a i { color: var(--primary-light); font-size: 13px; }
.sidebar-list a:hover { background: rgba(30,64,175,.08); color: var(--primary); transform: translateX(3px); }

/* Steps / Process */
.steps-wrap { display: grid; grid-template-columns: repeat(4,1fr); gap: 32px; position: relative; }
.step-item { text-align: center; position: relative; }
.step-num { width: 52px; height: 52px; margin: 0 auto 20px; background: linear-gradient(135deg, var(--primary), var(--primary-light)); color: #fff; font-weight: 800; font-size: 20px; border-radius: 50%; display: flex; align-items: center; justify-content: center; box-shadow: 0 8px 24px rgba(30,64,175,.25); position: relative; z-index: 2; }
.step-item::after { content: ''; position: absolute; top: 26px; left: calc(50% + 48px); width: calc(100% - 96px); height: 2px; background: linear-gradient(90deg, var(--primary-light), rgba(30,64,175,.15)); }
.step-item:last-child::after { display: none; }
.step-item h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.step-item p { font-size: 13px; color: var(--text-light); line-height: 1.7; }

/* Data section */
.data-bg { background: linear-gradient(135deg, #0f172a, #1e3a8a); border-radius: var(--radius-lg); padding: 56px 48px; color: #fff; position: relative; overflow: hidden; }
.data-bg::before { content: ''; position: absolute; right: -80px; top: -80px; width: 300px; height: 300px; background: rgba(255,255,255,.04); border-radius: 50%; }
.data-bg::after { content: ''; position: absolute; left: -40px; bottom: -100px; width: 200px; height: 200px; background: rgba(255,255,255,.03); border-radius: 50%; }
.data-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; position: relative; z-index: 2; }
.data-item { text-align: center; padding: 24px 16px; background: rgba(255,255,255,.05); border-radius: var(--radius); border: 1px solid rgba(255,255,255,.1); transition: all .3s; }
.data-item:hover { background: rgba(255,255,255,.1); transform: translateY(-4px); }
.data-title { font-size: 38px; font-weight: 800; background: linear-gradient(135deg, #fbbf24, #f59e0b); -webkit-background-clip: text; -webkit-text-fill-color: transparent; line-height: 1.2; }
.data-item span { display: block; font-size: 14px; color: rgba(255,255,255,.7); margin-top: 8px; }

/* FAQ */
.faq-wrap { max-width: 800px; margin: 0 auto; }
.faq-item { background: var(--bg-white); border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 14px; overflow: hidden; transition: box-shadow .3s; }
.faq-item.active { box-shadow: var(--shadow); }
.faq-qst { display: flex; align-items: center; justify-content: space-between; padding: 20px 24px; font-size: 15px; font-weight: 600; color: var(--text); cursor: pointer; transition: color .25s; }
.faq-qst:hover { color: var(--primary); }
.faq-qst i { color: var(--primary-light); transition: transform .3s; }
.faq-item.active .faq-qst i { transform: rotate(45deg); }
.faq-ans { max-height: 0; overflow: hidden; transition: max-height .4s ease; padding: 0 24px; }
.faq-item.active .faq-ans { max-height: 400px; padding-bottom: 20px; }
.faq-ans p { font-size: 14px; color: var(--text-light); line-height: 1.8; }

/* CTA */
.cta-section { position: relative; background: linear-gradient(135deg, #1e3a8a, #1e40af); border-radius: var(--radius-lg); overflow: hidden; padding: 60px 56px; text-align: center; }
.cta-section::before { content: ''; position: absolute; inset: 0; background-image: url('/assets/images/backpic/back-3.png'); background-size: cover; background-position: center; opacity: .15; }
.cta-section .container { position: relative; z-index: 2; }
.cta-section h2 { font-size: 30px; color: #fff; font-weight: 800; margin-bottom: 16px; }
.cta-section p { font-size: 16px; color: rgba(255,255,255,.85); margin-bottom: 30px; }
.cta-section .btn { margin: 0 8px; }

/* Footer */
.site-footer { background: var(--bg-dark); color: #94a3b8; padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr; gap: 48px; padding-bottom: 48px; border-bottom: 1px solid rgba(148,163,184,.12); }
.footer-brand .logo-text { color: #fff; }
.footer-brand .logo-text span { color: #fbbf24; }
.footer-brand p { font-size: 14px; line-height: 1.8; margin-top: 16px; color: #94a3b8; }
.footer-col h4 { color: #fff; font-size: 16px; font-weight: 600; margin-bottom: 20px; position: relative; padding-bottom: 12px; }
.footer-col h4::after { content: ''; position: absolute; bottom: 0; left: 0; width: 28px; height: 3px; background: var(--accent); border-radius: 3px; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a { font-size: 14px; color: #94a3b8; display: inline-flex; align-items: center; gap: 8px; transition: all .25s; }
.footer-col a i { font-size: 11px; }
.footer-col a:hover { color: #fbbf24; transform: translateX(3px); }
.footer-bottom { padding: 24px 0; text-align: center; font-size: 13px; color: #64748b; border-top: 1px solid rgba(148,163,184,.08); }

/* Responsive */
@media (max-width: 1024px) {
    .hero .container { grid-template-columns: 1fr; gap: 40px; }
    .hero-card { max-width: 560px; }
    .feature-grid, .cate-grid { grid-template-columns: repeat(2,1fr); gap: 24px; }
    .news-wrap { grid-template-columns: 1fr; gap: 36px; }
    .steps-wrap { grid-template-columns: repeat(2,1fr); gap: 40px 32px; }
    .step-item::after { display: none; }
    .data-grid { grid-template-columns: repeat(2,1fr); gap: 20px; }
}

@media (max-width: 768px) {
    .header-nav, .nav-cta, .mega-wrap { display: none; }
    .mobile-toggle { display: flex; }
    .hero { padding: 48px 0 80px; }
    .hero-title { font-size: 32px; }
    .hero-desc { font-size: 15px; }
    .section { padding: 56px 0; }
    .section-title { font-size: 26px; }
    .cta-section { padding: 40px 24px; }
    .cta-section h2 { font-size: 24px; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 576px) {
    .container { padding: 0 16px; }
    .feature-grid, .cate-grid { grid-template-columns: 1fr; }
    .data-grid { grid-template-columns: 1fr; }
    .steps-wrap { grid-template-columns: 1fr; }
    .news-item { flex-direction: row; padding: 16px; }
    .news-thumb { width: 80px; height: 64px; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .btn-lg { padding: 14px 24px; font-size: 15px; }
}

/* roulang page: article */
:root {
    --primary: #d4a24c;
    --primary-dark: #b8893a;
    --primary-light: #f0d9a8;
    --secondary: #1a2b49;
    --secondary-dark: #101d33;
    --bg: #f6f4ef;
    --bg-white: #ffffff;
    --text: #1c2333;
    --text-muted: #7a8291;
    --border: #e7e1d5;
    --radius: 16px;
    --radius-sm: 8px;
    --shadow: 0 4px 24px rgba(26, 43, 73, 0.08);
    --shadow-lg: 0 12px 40px rgba(26, 43, 73, 0.14);
    --transition: all 0.3s ease;
    --content-width: 1280px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: "Inter", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    font-size: 16px;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; }
.container { width: 100%; max-width: var(--content-width); margin: 0 auto; padding: 0 24px; }
.site-header {
    position: sticky; top: 0; z-index: 100;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(231, 225, 213, 0.8);
    box-shadow: 0 2px 20px rgba(26, 43, 73, 0.05);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 74px; gap: 24px; }
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-icon {
    width: 42px; height: 42px; border-radius: 12px;
    background: linear-gradient(135deg, var(--primary), #e6b86a);
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 18px;
    box-shadow: 0 4px 12px rgba(212, 162, 76, 0.35);
}
.logo-text { font-size: 22px; font-weight: 800; color: var(--secondary); letter-spacing: 1px; line-height: 1.2; }
.logo-text span { color: var(--primary); }
.header-nav { display: flex; align-items: center; gap: 4px; }
.nav-item {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 10px 16px; border-radius: 10px;
    font-size: 15px; font-weight: 600; color: var(--text);
    transition: var(--transition); white-space: nowrap;
}
.nav-item i { font-size: 14px; color: var(--primary); transition: var(--transition); }
.nav-item:hover { background: var(--bg); color: var(--primary-dark); transform: translateY(-1px); }
.nav-item.active { background: rgba(212, 162, 76, 0.12); color: var(--primary-dark); }
.nav-item.active i { color: var(--primary-dark); }
.mega-wrap { position: relative; }
.mega-panel {
    position: absolute; top: calc(100% + 8px); left: 0;
    width: 520px; background: #fff;
    border-radius: var(--radius); border: 1px solid var(--border);
    box-shadow: var(--shadow-lg); padding: 18px;
    display: none; gap: 18px; z-index: 50;
}
.mega-wrap:hover .mega-panel, .mega-wrap:focus-within .mega-panel { display: flex; animation: fadeSlideIn 0.25s ease; }
@keyframes fadeSlideIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}
.mega-col { flex: 1; }
.mega-title { font-size: 13px; font-weight: 700; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 12px; padding-bottom: 8px; border-bottom: 1px solid var(--border); }
.mega-link {
    display: flex; align-items: center; gap: 10px;
    padding: 9px 12px; border-radius: 8px;
    color: var(--text); font-size: 14px; font-weight: 500;
    transition: var(--transition);
}
.mega-link i { font-size: 13px; color: var(--primary); width: 18px; text-align: center; transition: var(--transition); }
.mega-link:hover { background: rgba(212, 162, 76, 0.08); color: var(--primary-dark); transform: translateX(3px); }
.nav-toggle { display: none; width: 42px; height: 42px; border-radius: 10px; align-items: center; justify-content: center; font-size: 18px; color: var(--secondary); background: var(--bg); transition: var(--transition); }
.nav-toggle:hover { background: rgba(212, 162, 76, 0.15); color: var(--primary-dark); }

.article-banner {
    position: relative; background-size: cover; background-position: center;
    padding: 84px 0 72px; color: #fff;
}
.banner-overlay { position: absolute; inset: 0; background: linear-gradient(135deg, rgba(16, 29, 51, 0.9), rgba(16, 29, 51, 0.55), rgba(212, 162, 76, 0.25)); }
.article-banner-inner { position: relative; z-index: 2; max-width: 960px; }
.post-category {
    display: inline-flex; align-items: center; gap: 8px;
    background: rgba(255, 255, 255, 0.15); border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(8px);
    padding: 7px 18px; border-radius: 999px;
    font-size: 13px; font-weight: 600; letter-spacing: 1px;
    margin-bottom: 20px;
}
.post-category i { color: var(--primary-light); }
.post-title { font-size: 42px; font-weight: 800; line-height: 1.3; letter-spacing: 0.5px; margin-bottom: 20px; text-shadow: 0 2px 16px rgba(0, 0, 0, 0.2); }
.post-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 18px; font-size: 14px; color: rgba(255, 255, 255, 0.85); }
.post-meta span { display: inline-flex; align-items: center; gap: 6px; }
.post-meta i { color: var(--primary-light); }
.post-meta .dot { width: 4px; height: 4px; border-radius: 50%; background: rgba(255, 255, 255, 0.5); }

.article-section { padding: 56px 0; }
.article-wrap { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 40px; align-items: start; }
.article-main { min-width: 0; }
.article-card { background: #fff; border-radius: var(--radius); border: 1px solid var(--border); box-shadow: var(--shadow); padding: 40px; }
.article-body { min-width: 0; }
.article-content { font-size: 16px; line-height: 1.9; color: var(--text); }
.article-content p { margin-bottom: 20px; }
.article-content h2 { font-size: 26px; font-weight: 700; color: var(--secondary); margin: 40px 0 20px; padding-left: 16px; border-left: 4px solid var(--primary); line-height: 1.4; }
.article-content h3 { font-size: 22px; font-weight: 700; color: var(--secondary); margin: 32px 0 16px; }
.article-content h4 { font-size: 18px; font-weight: 700; color: var(--secondary); margin: 28px 0 14px; }
.article-content ul, .article-content ol { margin: 0 0 20px; padding-left: 24px; }
.article-content ul { list-style: square; }
.article-content ol { list-style: decimal; }
.article-content li { margin-bottom: 10px; padding-left: 4px; }
.article-content a { color: var(--primary-dark); font-weight: 600; border-bottom: 1px solid rgba(212, 162, 76, 0.4); transition: var(--transition); }
.article-content a:hover { color: var(--secondary); border-color: var(--secondary); }
.article-content img { border-radius: var(--radius); margin: 28px 0; box-shadow: var(--shadow); }
.article-content blockquote {
    margin: 28px 0; padding: 20px 28px; background: rgba(212, 162, 76, 0.08);
    border-left: 4px solid var(--primary); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    color: var(--secondary); font-size: 15px; font-weight: 500;
}
.article-content code {
    background: rgba(26, 43, 73, 0.06); padding: 2px 8px; border-radius: 6px;
    font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace; font-size: 14px;
}
.article-content table { width: 100%; border-collapse: collapse; margin: 28px 0; font-size: 14px; }
.article-content th { background: var(--secondary); color: #fff; padding: 12px 16px; text-align: left; font-weight: 600; }
.article-content th:first-child { border-radius: 10px 0 0 0; }
.article-content th:last-child { border-radius: 0 10px 0 0; }
.article-content td { padding: 12px 16px; border-bottom: 1px solid var(--border); }
.article-content tr:nth-child(even) td { background: #faf8f3; }
.article-content tr:hover td { background: rgba(212, 162, 76, 0.05); }
.not-found { text-align: center; padding: 60px 20px; }
.not-found .nf-icon { font-size: 56px; color: var(--primary); margin-bottom: 24px; }
.not-found h2 { font-size: 28px; font-weight: 700; color: var(--secondary); margin-bottom: 14px; }
.not-found p { color: var(--text-muted); font-size: 15px; margin-bottom: 28px; }

.article-share { display: flex; align-items: center; gap: 12px; padding-top: 28px; margin-top: 32px; border-top: 1px solid var(--border); flex-wrap: wrap; }
.article-share .share-label { font-size: 14px; font-weight: 600; color: var(--text-muted); }
.share-btn {
    width: 36px; height: 36px; border-radius: 10px; display: flex; align-items: center; justify-content: center;
    background: var(--bg); color: var(--text-muted); font-size: 14px; transition: var(--transition); border: 1px solid var(--border);
}
.share-btn:hover { background: rgba(212, 162, 76, 0.1); color: var(--primary-dark); transform: translateY(-2px); border-color: rgba(212, 162, 76, 0.4); }

.article-side { display: flex; flex-direction: column; gap: 24px; position: sticky; top: 96px; }
.side-card { background: #fff; border-radius: var(--radius); border: 1px solid var(--border); box-shadow: var(--shadow); padding: 26px 24px; }
.side-title { font-size: 16px; font-weight: 700; color: var(--secondary); margin-bottom: 20px; display: flex; align-items: center; gap: 10px; }
.side-title i { color: var(--primary); font-size: 15px; }
.side-title::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.side-list li { border-bottom: 1px solid rgba(231, 225, 213, 0.7); }
.side-list li:last-child { border-bottom: none; }
.side-link {
    display: flex; flex-direction: column; gap: 2px; padding: 12px 0;
    color: var(--text); font-size: 14px; font-weight: 500;
    transition: var(--transition);
}
.side-link i { color: var(--primary); font-size: 11px; margin-right: 8px; display: inline-block; }
.side-link span { font-size: 12px; color: var(--text-muted); padding-left: 18px; }
.side-link:hover { color: var(--primary-dark); transform: translateX(3px); }
.side-link:hover i { transform: translateX(2px); }
.side-empty { color: var(--text-muted); font-size: 14px; text-align: center; padding: 16px 0; }
.side-nav-list { display: flex; flex-direction: column; gap: 4px; }
.side-nav-item {
    display: flex; align-items: center; gap: 12px; padding: 13px 16px;
    border-radius: 12px; background: var(--bg); border: 1px solid var(--border);
    color: var(--text); font-size: 14px; font-weight: 600; transition: var(--transition);
}
.side-nav-item i { color: var(--primary); font-size: 15px; width: 20px; text-align: center; }
.side-nav-item:hover { background: rgba(212, 162, 76, 0.08); border-color: rgba(212, 162, 76, 0.4); color: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow); }
.side-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 7px 14px; background: var(--bg); border: 1px solid var(--border);
    border-radius: 999px; font-size: 13px; font-weight: 500; color: var(--text-muted);
    transition: var(--transition);
}
.tag:hover { background: rgba(212, 162, 76, 0.1); border-color: var(--primary); color: var(--primary-dark); }

.related-section { padding: 56px 0 20px; }
.section-head { text-align: center; margin-bottom: 40px; }
.section-tag {
    display: inline-flex; align-items: center; gap: 6px;
    background: rgba(212, 162, 76, 0.1); color: var(--primary-dark);
    font-size: 13px; font-weight: 600; padding: 6px 16px; border-radius: 999px; margin-bottom: 14px;
}
.section-title { font-size: 32px; font-weight: 800; color: var(--secondary); letter-spacing: 0.5px; }
.section-desc { color: var(--text-muted); font-size: 15px; margin-top: 10px; }
.related-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.related-card {
    background: #fff; border-radius: var(--radius); overflow: hidden;
    border: 1px solid var(--border); box-shadow: var(--shadow);
    transition: var(--transition); display: flex; flex-direction: column;
}
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(212, 162, 76, 0.4); }
.related-img { height: 160px; overflow: hidden; background: var(--secondary); position: relative; }
.related-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.related-card:hover .related-img img { transform: scale(1.06); }
.related-img::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(16, 29, 51, 0.3), transparent 50%); }
.related-body { padding: 20px 20px 22px; flex: 1; display: flex; flex-direction: column; }
.related-cat { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 600; color: var(--primary-dark); margin-bottom: 8px; text-transform: uppercase; letter-spacing: 0.6px; }
.related-cat i { font-size: 10px; }
.related-item-title { font-size: 15px; font-weight: 700; color: var(--secondary); line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; transition: var(--transition); flex: 1; }
.related-card:hover .related-item-title { color: var(--primary-dark); }
.related-meta { font-size: 12px; color: var(--text-muted); margin-top: 16px; display: flex; align-items: center; gap: 14px; }
.related-meta i { font-size: 11px; }

.faq-section { padding: 56px 0; }
.faq-section .section-head { margin-bottom: 36px; }
.faq-list { max-width: 860px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
.faq-item { background: #fff; border-radius: var(--radius); border: 1px solid var(--border); box-shadow: var(--shadow); overflow: hidden; transition: var(--transition); }
.faq-item:hover { border-color: rgba(212, 162, 76, 0.4); }
.faq-item details summary {
    display: flex; align-items: center; justify-content: space-between; gap: 16px;
    padding: 20px 28px; cursor: pointer; font-size: 16px; font-weight: 600; color: var(--secondary);
    list-style: none; outline: none; transition: var(--transition);
}
.faq-item details summary::-webkit-details-marker { display: none; }
.faq-item details summary i { color: var(--primary); transition: transform 0.3s ease; }
.faq-item details[open] summary { color: var(--primary-dark); background: rgba(212, 162, 76, 0.04); }
.faq-item details[open] summary i { transform: rotate(90deg); }
.faq-item .faq-a { padding: 0 28px 22px; color: var(--text-muted); font-size: 15px; line-height: 1.8; }
.cta-section { padding: 32px 0 64px; }
.cta-inner {
    background: linear-gradient(135deg, var(--secondary), #243a5f 50%, rgba(212, 162, 76, 0.85));
    border-radius: 20px; padding: 64px 48px; text-align: center;
    color: #fff; position: relative; overflow: hidden;
    box-shadow: var(--shadow-lg);
}
.cta-inner::before { content: ""; position: absolute; top: -60px; right: -40px; width: 220px; height: 220px; border-radius: 50%; background: rgba(255, 255, 255, 0.06); }
.cta-inner::after { content: ""; position: absolute; bottom: -80px; left: 20px; width: 180px; height: 180px; border-radius: 50%; background: rgba(255, 255, 255, 0.05); }
.cta-title { font-size: 30px; font-weight: 800; letter-spacing: 1px; margin-bottom: 14px; position: relative; z-index: 1; }
.cta-desc { font-size: 15px; color: rgba(255, 255, 255, 0.85); max-width: 640px; margin: 0 auto 32px; line-height: 1.8; position: relative; z-index: 1; }
.btn-group { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; position: relative; z-index: 1; }
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 14px 30px; border-radius: 12px;
    font-size: 15px; font-weight: 700; letter-spacing: 0.5px;
    transition: var(--transition); border: none;
}
.btn i { transition: transform 0.3s ease; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 6px 18px rgba(212, 162, 76, 0.35); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 10px 24px rgba(212, 162, 76, 0.45); }
.btn-primary:hover i { transform: translateX(3px); }
.btn-ghost { background: rgba(255, 255, 255, 0.12); color: #fff; border: 1px solid rgba(255, 255, 255, 0.35); backdrop-filter: blur(6px); }
.btn-ghost:hover { background: rgba(255, 255, 255, 0.22); transform: translateY(-2px); border-color: rgba(255, 255, 255, 0.6); }
.btn-secondary { background: var(--secondary); color: #fff; }
.btn-secondary:hover { background: #243a5f; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(26, 43, 73, 0.3); }
.btn-secondary:hover i { transform: translateX(-3px); }

.site-footer { background: var(--secondary-dark); color: rgba(255, 255, 255, 0.7); padding: 56px 0 0; margin-top: 64px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; padding-bottom: 40px; }
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand .logo-text { color: #fff; }
.footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255, 255, 255, 0.55); max-width: 380px; }
.footer-col h4 { color: #fff; font-size: 16px; font-weight: 700; margin-bottom: 20px; position: relative; padding-bottom: 12px; }
.footer-col h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 28px; height: 2px; background: var(--primary); border-radius: 2px; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a { color: rgba(255, 255, 255, 0.6); font-size: 14px; transition: var(--transition); display: inline-flex; align-items: center; gap: 6px; }
.footer-col a i { font-size: 10px; color: var(--primary); }
.footer-col a:hover { color: var(--primary-light); padding-left: 4px; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.1); padding: 20px 0; text-align: center; font-size: 13px; color: rgba(255, 255, 255, 0.4); }

@media (max-width: 1024px) {
    .article-wrap { grid-template-columns: 1fr; }
    .article-side { position: static; flex-direction: row; flex-wrap: wrap; }
    .side-card { flex: 1 1 280px; }
    .related-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .header-inner { height: 64px; }
    .nav-toggle { display: flex; }
    .header-nav {
        position: fixed; top: 64px; left: 0; right: 0;
        background: #fff; flex-direction: column; align-items: stretch;
        padding: 16px 20px 24px; gap: 4px;
        box-shadow: 0 20px 40px rgba(26, 43, 73, 0.12);
        border-bottom: 1px solid var(--border);
        display: none; max-height: calc(100vh - 64px); overflow-y: auto;
        border-radius: 0 0 20px 20px;
    }
    .header-nav.open { display: flex; }
    .header-nav .nav-item { padding: 14px 12px; border-radius: 10px; justify-content: flex-start; }
    .mega-wrap { display: flex; flex-direction: column; }
    .mega-panel { display: flex; position: static; width: 100%; box-shadow: none; border: none; padding: 8px 0 8px 12px; gap: 12px; flex-direction: column; }
    .mega-panel .mega-col { padding: 0; }
    .mega-title { margin-bottom: 8px; }
    .article-banner { padding: 48px 0 40px; }
    .post-title { font-size: 28px; }
    .article-card { padding: 24px; }
    .article-content { font-size: 15px; }
    .article-content h2 { font-size: 22px; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .cta-inner { padding: 44px 24px; }
    .cta-title { font-size: 24px; }
}
@media (max-width: 520px) {
    .post-title { font-size: 24px; }
    .post-meta { gap: 12px; }
    .related-grid { grid-template-columns: 1fr; }
    .cta-inner { padding: 36px 18px; }
    .cta-title { font-size: 21px; }
    .btn { width: 100%; justify-content: center; }
    .container { padding: 0 16px; }
    .section-title { font-size: 26px; }
    .article-share { justify-content: center; }
    .article-banner { padding: 40px 0 34px; }
    .article-card { padding: 18px; }
    .article-content blockquote { padding: 14px 18px; }
}

/* roulang page: category1 */
/* ========== 设计变量 ========== */
        :root {
            --primary: #0f2b5b;
            --primary-light: #1e3a8a;
            --primary-dark: #081c3d;
            --accent: #f0b44c;
            --accent-light: #fcd992;
            --accent-dark: #d9922c;
            --bg: #f6f8fc;
            --bg-deep: #eef2f8;
            --white: #ffffff;
            --text: #12203a;
            --text-light: #5a6d85;
            --border: #e3eaf3;
            --radius: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(15, 43, 91, 0.06);
            --shadow-md: 0 8px 24px rgba(15, 43, 91, 0.1);
            --shadow-lg: 0 12px 40px rgba(15, 43, 91, 0.14);
            --transition: all 0.3s ease;
            --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

        /* ========== Reset & Base ========== */
        *,
        *::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;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }
        ul,
        ol {
            list-style: none;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        a:focus-visible,
        button:focus-visible,
        summary:focus-visible {
            outline: 3px solid rgba(240, 180, 76, 0.5);
            outline-offset: 2px;
        }

        /* ========== 容器与版式 ========== */
        .container {
            width: min(1200px, 92%);
            margin-inline: auto;
        }
        .section {
            padding: 96px 0;
        }
        .section-alt {
            background: var(--white);
        }
        .section-head {
            text-align: center;
            max-width: 720px;
            margin: 0 auto 56px;
        }
        .section-sub {
            display: inline-block;
            font-size: 13px;
            font-weight: 800;
            letter-spacing: 0.08em;
            color: var(--accent-dark);
            background: rgba(240, 180, 76, 0.12);
            padding: 6px 18px;
            border-radius: 24px;
            margin-bottom: 14px;
            text-transform: uppercase;
        }
        .section-title {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 14px;
            color: var(--text);
        }
        .section-desc {
            font-size: 15.5px;
            color: var(--text-light);
            line-height: 1.8;
        }

        /* ========== 按钮 ========== */
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 28px;
            border-radius: 12px;
            font-weight: 700;
            font-size: 15px;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            justify-content: center;
        }
        .btn-primary {
            background: var(--accent);
            color: var(--primary-dark);
            box-shadow: 0 8px 20px rgba(240, 180, 76, 0.25);
        }
        .btn-primary:hover {
            background: var(--accent-light);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(240, 180, 76, 0.32);
        }
        .btn-ghost {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.3);
            backdrop-filter: blur(6px);
        }
        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.22);
            transform: translateY(-2px);
        }
        .btn-light {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
        }
        .btn-light:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(0, 0, 0, 0.12);
        }

        /* ========== 标签与徽章 ========== */
        .badge {
            display: inline-block;
            padding: 5px 14px;
            border-radius: 20px;
            font-size: 12px;
            font-weight: 700;
        }
        .badge-primary {
            background: rgba(15, 43, 91, 0.08);
            color: var(--primary);
        }
        .badge-accent {
            background: rgba(240, 180, 76, 0.15);
            color: var(--accent-dark);
        }

        /* ========== Header 导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid var(--border);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 76px;
            gap: 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 800;
            flex-shrink: 0;
        }
        .logo-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            box-shadow: 0 6px 16px rgba(15, 43, 91, 0.25);
        }
        .logo-text {
            font-size: 22px;
            color: var(--text);
            letter-spacing: 0.5px;
            line-height: 1.2;
        }
        .logo-text span {
            color: var(--accent-dark);
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .nav-item {
            padding: 10px 16px;
            border-radius: 10px;
            font-weight: 600;
            font-size: 14.5px;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 7px;
            transition: var(--transition);
            white-space: nowrap;
        }
        .nav-item i.fa-chevron-down {
            font-size: 10px;
            opacity: 0.7;
        }
        .nav-item:hover,
        .nav-item.active {
            color: var(--primary);
            background: rgba(15, 43, 91, 0.06);
        }
        .header-cta {
            margin-left: 8px;
            padding: 9px 20px;
            font-size: 14px;
        }

        /* Mega Menu */
        .mega-wrap {
            position: relative;
        }
        .mega-panel {
            position: absolute;
            top: calc(100% + 18px);
            left: 50%;
            transform: translateX(-50%) translateY(10px);
            width: 480px;
            background: #fff;
            border-radius: 16px;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border);
            padding: 22px;
            display: flex;
            gap: 24px;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            z-index: 60;
        }
        .mega-wrap:hover .mega-panel,
        .mega-wrap:focus-within .mega-panel {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(0);
        }
        .mega-panel::before {
            content: '';
            position: absolute;
            top: -8px;
            left: 50%;
            transform: translateX(-50%);
            border-left: 8px solid transparent;
            border-right: 8px solid transparent;
            border-bottom: 8px solid #fff;
        }
        .mega-col {
            flex: 1;
        }
        .mega-title {
            font-size: 12.5px;
            font-weight: 800;
            color: var(--text-light);
            letter-spacing: 0.08em;
            margin-bottom: 12px;
            padding-bottom: 8px;
            border-bottom: 1px solid var(--border);
        }
        .mega-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 9px 10px;
            border-radius: 8px;
            color: var(--text);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
        }
        .mega-link i {
            width: 20px;
            text-align: center;
            color: var(--primary);
            font-size: 14px;
        }
        .mega-link:hover {
            background: var(--bg-deep);
            color: var(--primary);
            padding-left: 14px;
        }

        /* 移动端菜单按钮 */
        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border: 1px solid var(--border);
            background: #fff;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            cursor: pointer;
            color: var(--primary);
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: var(--bg-deep);
        }

        /* ========== 分类页 Hero ========== */
        .page-hero {
            position: relative;
            padding: 120px 0 104px;
            background: url('/assets/images/backpic/back-1.png') center / cover no-repeat;
            color: #fff;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(6, 18, 50, 0.94) 0%, rgba(15, 43, 91, 0.88) 60%, rgba(15, 43, 91, 0.76) 100%);
        }
        .hero-inner {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 820px;
            margin: 0 auto;
        }
        .breadcrumb {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13.5px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.16);
            padding: 8px 18px;
            border-radius: 30px;
            backdrop-filter: blur(6px);
            color: rgba(255, 255, 255, 0.85);
        }
        .breadcrumb a:hover {
            color: var(--accent);
        }
        .breadcrumb i {
            font-size: 10px;
            opacity: 0.6;
        }
        .page-hero h1 {
            font-size: 46px;
            font-weight: 800;
            margin: 22px 0 16px;
            letter-spacing: 1px;
            line-height: 1.25;
        }
        .page-hero h1 span {
            color: var(--accent);
        }
        .page-hero p {
            font-size: 16.5px;
            opacity: 0.85;
            max-width: 680px;
            margin: 0 auto 38px;
            line-height: 1.8;
        }
        .hero-btns {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .hero-info-bar {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-top: 54px;
            flex-wrap: wrap;
        }
        .hero-info-item {
            display: flex;
            align-items: center;
            gap: 12px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.14);
            padding: 14px 22px;
            border-radius: 14px;
            backdrop-filter: blur(6px);
        }
        .hero-info-item i {
            color: var(--accent);
            font-size: 18px;
        }
        .hero-info-item span {
            font-size: 13.5px;
            font-weight: 600;
        }

        /* ========== 入口卡片 ========== */
        .entrance-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .entrance-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 32px 26px;
            box-shadow: var(--shadow-sm);
            position: relative;
            overflow: hidden;
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .entrance-card::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light));
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.4s ease;
        }
        .entrance-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
        }
        .entrance-card:hover::after {
            transform: scaleX(1);
        }
        .entrance-icon {
            width: 56px;
            height: 56px;
            border-radius: 14px;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 20px;
            box-shadow: 0 8px 18px rgba(15, 43, 91, 0.2);
        }
        .entrance-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .entrance-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            flex: 1;
        }
        .entrance-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 20px;
        }
        .entrance-tag {
            font-size: 12px;
            font-weight: 700;
            color: var(--accent-dark);
            background: rgba(240, 180, 76, 0.12);
            padding: 4px 14px;
            border-radius: 20px;
        }
        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            color: var(--primary);
            font-size: 14px;
        }
        .card-link:hover {
            gap: 10px;
        }

        /* ========== 访问流程 ========== */
        .steps-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 70%, var(--primary-light) 100%);
            position: relative;
            overflow: hidden;
        }
        .steps-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center / cover no-repeat;
            opacity: 0.07;
        }
        .steps-section .section-title {
            color: #fff;
        }
        .steps-section .section-desc {
            color: rgba(255, 255, 255, 0.75);
        }
        .steps-section .section-sub {
            background: rgba(255, 255, 255, 0.1);
            color: var(--accent-light);
        }
        .steps-wrap {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 22px;
        }
        .step-item {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            backdrop-filter: blur(8px);
            transition: var(--transition);
        }
        .step-item:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
        }
        .step-num {
            font-size: 32px;
            font-weight: 800;
            color: var(--accent);
            line-height: 1;
            opacity: 0.9;
        }
        .step-item h3 {
            color: #fff;
            font-size: 17px;
            margin: 14px 0 8px;
            font-weight: 700;
        }
        .step-item p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 13.5px;
            line-height: 1.7;
        }
        .step-item .step-tag {
            display: inline-block;
            margin-top: 14px;
            font-size: 12px;
            color: var(--accent-light);
            background: rgba(255, 255, 255, 0.12);
            padding: 4px 12px;
            border-radius: 16px;
        }

        /* ========== 图文详情 ========== */
        .detail-block {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 56px;
            align-items: center;
            margin-bottom: 80px;
        }
        .detail-block:last-child {
            margin-bottom: 0;
        }
        .detail-block.reverse .detail-media {
            order: 2;
        }
        .detail-media {
            position: relative;
        }
        .detail-media img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-lg);
            width: 100%;
            height: auto;
            object-fit: cover;
            aspect-ratio: 4 / 3;
        }
        .detail-media::after {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: var(--radius-lg);
            box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.1);
            pointer-events: none;
        }
        .detail-chip {
            display: inline-block;
            font-size: 13px;
            font-weight: 700;
            color: var(--accent-dark);
            background: rgba(240, 180, 76, 0.12);
            padding: 5px 16px;
            border-radius: 20px;
            margin-bottom: 14px;
        }
        .detail-block h2 {
            font-size: 28px;
            font-weight: 800;
            margin-bottom: 14px;
            line-height: 1.35;
        }
        .detail-block p {
            color: var(--text-light);
            margin-bottom: 22px;
            line-height: 1.8;
        }
        .feature-list {
            display: grid;
            gap: 12px;
            margin-bottom: 26px;
        }
        .feature-list li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14.5px;
            color: var(--text);
        }
        .feature-list li i {
            color: var(--accent-dark);
            margin-top: 5px;
            font-size: 14px;
        }

        /* ========== 最新指引列表 ========== */
        .news-list {
            display: grid;
            gap: 16px;
        }
        .news-item {
            display: flex;
            align-items: center;
            gap: 20px;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 22px 24px;
            transition: var(--transition);
        }
        .news-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
            border-color: rgba(15, 43, 91, 0.16);
        }
        .news-tag {
            flex-shrink: 0;
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: 24px;
            box-shadow: 0 4px 12px rgba(15, 43, 91, 0.2);
        }
        .news-content {
            flex: 1;
            min-width: 0;
        }
        .news-content h3 {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 6px;
            transition: var(--transition);
        }
        .news-item:hover .news-content h3 {
            color: var(--primary);
        }
        .news-content p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
        }
        .news-meta {
            display: flex;
            gap: 20px;
            margin-top: 8px;
            font-size: 13px;
            color: var(--text-light);
        }
        .news-meta i {
            margin-right: 4px;
        }
        .news-link {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            background: var(--bg-deep);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            flex-shrink: 0;
            transition: var(--transition);
        }
        .news-item:hover .news-link {
            background: var(--primary);
            color: #fff;
        }

        /* ========== 安全提示 ========== */
        .security-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .security-card {
            background: var(--bg-deep);
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 26px 24px;
            display: flex;
            gap: 18px;
            transition: var(--transition);
        }
        .security-card:hover {
            background: #fff;
            box-shadow: var(--shadow-md);
            transform: translateY(-3px);
        }
        .security-card>i {
            font-size: 22px;
            color: var(--accent-dark);
            flex-shrink: 0;
            margin-top: 4px;
        }
        .security-card h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .security-card p {
            font-size: 13.5px;
            color: var(--text-light);
            line-height: 1.7;
        }

        /* ========== FAQ ========== */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
            display: grid;
            gap: 14px;
        }
        .faq-item {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 14px;
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item summary {
            list-style: none;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 20px 24px;
            font-weight: 600;
            cursor: pointer;
            font-size: 15.5px;
            user-select: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary i {
            color: var(--accent-dark);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }
        .faq-item[open] summary i {
            transform: rotate(45deg);
        }
        .faq-item[open] {
            box-shadow: var(--shadow-sm);
            border-color: rgba(15, 43, 91, 0.12);
        }
        .faq-item p {
            padding: 0 24px 22px;
            color: var(--text-light);
            font-size: 14.5px;
            line-height: 1.8;
        }

        /* ========== CTA ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            position: relative;
            overflow: hidden;
            text-align: center;
            color: #fff;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center / cover no-repeat;
            opacity: 0.1;
        }
        .cta-content {
            position: relative;
            z-index: 2;
            padding: 88px 0;
            max-width: 720px;
            margin: 0 auto;
        }
        .cta-content h2 {
            font-size: 34px;
            font-weight: 800;
            margin-bottom: 16px;
            line-height: 1.3;
        }
        .cta-content p {
            opacity: 0.82;
            margin-bottom: 36px;
            font-size: 16px;
            line-height: 1.8;
        }
        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: #081c3d;
            color: rgba(255, 255, 255, 0.75);
            padding-top: 72px;
        }
        .footer-grid {
            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-text {
            color: #fff;
        }
        .footer-brand p {
            font-size: 14px;
            line-height: 1.85;
            margin-top: 18px;
            max-width: 360px;
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 28px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .footer-col ul {
            display: grid;
            gap: 10px;
        }
        .footer-col a {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.55);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }
        .footer-col a i {
            font-size: 10px;
        }
        .footer-col a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-bottom {
            padding: 22px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.4);
            border-top: 1px solid rgba(255, 255, 255, 0.06);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1200px) {
            .entrance-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-wrap {
                grid-template-columns: repeat(2, 1fr);
            }
            .security-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 991px) {
            .section {
                padding: 72px 0;
            }
            .header-inner {
                height: 68px;
            }
            .nav-toggle {
                display: flex;
            }
            .header-nav {
                display: none;
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                align-items: stretch;
                padding: 16px;
                box-shadow: 0 20px 40px rgba(15, 43, 91, 0.12);
                border-bottom: 1px solid var(--border);
                gap: 4px;
                max-height: calc(100vh - 68px);
                overflow-y: auto;
            }
            .header-nav.open {
                display: flex;
            }
            .nav-item {
                padding: 13px 16px;
                border-radius: 10px;
            }
            .mega-wrap {
                display: flex;
                flex-direction: column;
            }
            .mega-wrap .nav-item {
                justify-content: space-between;
            }
            .mega-panel {
                position: static;
                width: 100%;
                transform: none;
                opacity: 1;
                visibility: visible;
                box-shadow: none;
                border: none;
                background: var(--bg-deep);
                border-radius: 12px;
                margin-top: 6px;
                padding: 16px;
                display: none;
            }
            .mega-wrap:hover .mega-panel,
            .mega-wrap:focus-within .mega-panel {
                display: flex;
                transform: none;
            }
            .mega-panel::before {
                display: none;
            }
            .mega-panel {
                flex-direction: column;
                gap: 8px;
            }
            .page-hero {
                padding: 92px 0 76px;
            }
            .page-hero h1 {
                font-size: 34px;
            }
            .detail-block {
                grid-template-columns: 1fr;
                gap: 36px;
            }
            .detail-block.reverse .detail-media {
                order: 0;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 36px;
            }
        }

        @media (max-width: 767px) {
            .section-title {
                font-size: 26px;
            }
            .page-hero p {
                font-size: 15px;
            }
            .hero-info-bar {
                gap: 16px;
                margin-top: 36px;
            }
            .hero-info-item {
                padding: 10px 16px;
            }
            .entrance-grid {
                grid-template-columns: 1fr;
            }
            .steps-wrap {
                grid-template-columns: 1fr;
            }
            .security-grid {
                grid-template-columns: 1fr;
            }
            .news-item {
                flex-direction: column;
                align-items: flex-start;
                gap: 14px;
            }
            .news-link {
                position: absolute;
                right: 20px;
                bottom: 20px;
            }
            .news-item {
                position: relative;
                padding-right: 70px;
            }
            .news-meta {
                flex-wrap: wrap;
                gap: 12px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .cta-content h2 {
                font-size: 26px;
            }
            .detail-block h2 {
                font-size: 23px;
            }
        }

        @media (max-width: 520px) {
            .section {
                padding: 60px 0;
            }
            .container {
                width: 90%;
            }
            .logo-text {
                font-size: 19px;
            }
            .logo-icon {
                width: 38px;
                height: 38px;
                font-size: 17px;
            }
            .page-hero h1 {
                font-size: 28px;
            }
            .page-hero p {
                font-size: 14px;
            }
            .hero-btns {
                flex-direction: column;
                align-items: center;
            }
            .btn {
                width: 100%;
                max-width: 320px;
            }
            .faq-item summary {
                font-size: 14.5px;
                padding: 18px 18px;
            }
            .faq-item p {
                padding: 0 18px 18px;
            }
            .news-tag {
                font-size: 11px;
            }
            .footer-bottom {
                font-size: 12px;
                line-height: 1.7;
            }
        }

/* roulang page: category3 */
:root {
  --primary: #16264b;
  --primary-2: #1f3a72;
  --primary-3: #2b4a8d;
  --accent: #d9a441;
  --accent-2: #e05a3c;
  --bg: #f4f6fb;
  --bg-soft: #edf0f8;
  --card: #ffffff;
  --text: #1e2b3c;
  --muted: #5d6b82;
  --line: #e3e8f2;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 10px rgba(22, 38, 75, 0.06);
  --shadow-md: 0 6px 24px rgba(22, 38, 75, 0.08);
  --shadow-lg: 0 16px 48px rgba(22, 38, 75, 0.12);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --container: 1200px;
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: var(--transition); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }

::selection { background: rgba(217, 164, 65, 0.25); }

/* ===== Header & Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 1px 12px rgba(22, 38, 75, 0.04);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-3) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 18px;
  box-shadow: 0 4px 12px rgba(31, 58, 114, 0.3);
}

.logo-text {
  font-size: 22px;
  font-weight: 800;
  color: var(--primary);
  letter-spacing: 0.5px;
  line-height: 1.2;
}

.logo-text span { display: block; font-size: 13px; font-weight: 600; color: var(--accent); letter-spacing: 1px; }

.header-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 15px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  white-space: nowrap;
  transition: var(--transition);
}

.nav-item i { font-size: 13px; opacity: 0.8; }
.nav-item:hover { background: var(--bg-soft); color: var(--primary); }
.nav-item.active { background: var(--primary); color: #fff; box-shadow: 0 4px 14px rgba(22, 38, 75, 0.25); }
.nav-item.active i { opacity: 1; }

.mega-wrap { position: relative; }

.mega-panel {
  position: absolute;
  top: calc(100% + 14px);
  left: 0;
  width: 440px;
  background: #fff;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-lg);
  padding: 22px;
  display: flex;
  gap: 24px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: var(--transition);
  z-index: 50;
}

.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.mega-col { flex: 1; }

.mega-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--muted);
  letter-spacing: 1px;
  padding-bottom: 8px;
  margin-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.mega-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 4px;
}

.mega-link i { width: 18px; font-size: 14px; color: var(--primary-3); text-align: center; }
.mega-link:hover { background: var(--bg-soft); color: var(--primary); transform: translateX(2px); }

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--bg-soft);
  color: var(--primary);
  font-size: 18px;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.nav-toggle:hover { background: var(--primary); color: #fff; }

/* ===== Hero ===== */
.hero {
  position: relative;
  background: linear-gradient(135deg, rgba(22, 38, 75, 0.96) 0%, rgba(31, 58, 114, 0.88) 60%, rgba(43, 74, 141, 0.8) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  padding: 96px 0 90px;
  color: #fff;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -60px;
  right: -60px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: rgba(217, 164, 65, 0.12);
  filter: blur(80px);
  pointer-events: none;
}

.hero-content { position: relative; z-index: 2; max-width: 780px; }

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  margin-bottom: 22px;
}

.breadcrumb a:hover { color: var(--accent); }
.breadcrumb i { font-size: 11px; color: rgba(255,255,255,0.4); }

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(217, 164, 65, 0.16);
  border: 1px solid rgba(217, 164, 65, 0.45);
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 18px;
  letter-spacing: 0.5px;
}

.hero-tag i { font-size: 12px; }

.hero-title {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 18px;
  letter-spacing: 1px;
}

.hero-title em { font-style: normal; color: var(--accent); }

.hero-sub {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255,255,255,0.82);
  max-width: 640px;
  margin-bottom: 32px;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 13px 26px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.4px;
  transition: var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, #f0c068 100%);
  color: #1a1a1a;
  box-shadow: 0 8px 24px rgba(217, 164, 65, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(217, 164, 65, 0.45);
}

.btn-outline {
  border: 1.5px solid rgba(255,255,255,0.45);
  color: #fff;
  background: rgba(255,255,255,0.06);
}

.btn-outline:hover { background: rgba(255,255,255,0.12); border-color: rgba(255,255,255,0.8); transform: translateY(-2px); }

/* ===== Section commons ===== */
.section { padding: 84px 0; }

.section-head { text-align: center; max-width: 720px; margin: 0 auto 50px; }

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--primary-3);
  background: rgba(43, 74, 141, 0.08);
  padding: 6px 16px;
  border-radius: 100px;
  letter-spacing: 1px;
  margin-bottom: 14px;
  text-transform: uppercase;
}

.section-title { font-size: 34px; font-weight: 800; color: var(--primary); line-height: 1.3; margin-bottom: 12px; }

.section-sub { color: var(--muted); font-size: 16px; line-height: 1.8; }

/* ===== Metrics ===== */
.metrics {
  margin-top: -46px;
  position: relative;
  z-index: 5;
  padding-bottom: 0;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.metric-card {
  background: var(--card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-md);
  padding: 30px 24px;
  text-align: center;
  transition: var(--transition);
}

.metric-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: rgba(217, 164, 65, 0.4); }

.metric-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 16px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--primary), var(--primary-3));
  color: #fff;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 16px rgba(31, 58, 114, 0.25);
}

.metric-num { font-size: 34px; font-weight: 800; color: var(--primary); line-height: 1.2; }

.metric-label { font-size: 14px; color: var(--muted); margin-top: 6px; }

/* ===== Value section ===== */
.value-section { background: var(--card); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

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

.value-image { position: relative; }

.value-image img { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); width: 100%; object-fit: cover; }

.value-image::after {
  content: '';
  position: absolute;
  inset: 18px -18px -18px 18px;
  border-radius: var(--radius-lg);
  border: 2px solid rgba(217, 164, 65, 0.5);
  z-index: -1;
}

.value-content .section-tag { margin-bottom: 10px; }
.value-content .section-title { font-size: 30px; margin-bottom: 16px; }
.value-content p { color: var(--muted); font-size: 15px; margin-bottom: 24px; }

.value-list { display: flex; flex-direction: column; gap: 18px; }

.value-item { display: flex; gap: 16px; align-items: flex-start; }

.value-item-icon {
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  border-radius: 12px;
  background: rgba(43, 74, 141, 0.08);
  color: var(--primary-3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  border: 1px solid var(--line);
}

.value-item h4 { font-size: 17px; font-weight: 700; color: var(--primary); margin-bottom: 4px; }
.value-item p { font-size: 14px; color: var(--muted); margin-bottom: 0; line-height: 1.7; }

/* ===== Dimension cards ===== */
.dim-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

.dim-card {
  background: var(--card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.dim-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(217, 164, 65, 0.4); }

.dim-img { position: relative; height: 150px; overflow: hidden; }

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

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

.dim-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(22, 38, 75, 0.35) 0%, transparent 50%);
}

.dim-icon {
  position: absolute;
  bottom: 12px;
  left: 14px;
  z-index: 2;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.95);
  color: var(--primary);
  font-size: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}

.dim-body { padding: 20px 20px 22px; flex: 1; display: flex; flex-direction: column; }

.dim-title { font-size: 18px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }

.dim-text { font-size: 14px; color: var(--muted); line-height: 1.75; flex: 1; }

.dim-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary-3);
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.dim-link i { font-size: 11px; transition: transform 0.3s ease; }
.dim-link:hover i { transform: translateX(4px); }
.dim-link:hover { color: var(--accent-2); }

/* ===== Archive table ===== */
.table-section { background: var(--bg-soft); }

.table-wrap {
  background: var(--card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-md);
  padding: 32px;
  overflow-x: auto;
}

.table-legend {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 24px;
}

.table-legend h3 { font-size: 18px; font-weight: 700; color: var(--primary); }

.table-note {
  font-size: 13px;
  color: var(--muted);
  background: rgba(217, 164, 65, 0.1);
  padding: 6px 14px;
  border-radius: 100px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.table-note i { color: var(--accent-2); }

.archive-table { width: 100%; border-collapse: collapse; min-width: 560px; }

.archive-table th {
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  text-align: left;
  padding: 13px 16px;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.archive-table th:first-child { border-radius: 10px 0 0 10px; }
.archive-table th:last-child { border-radius: 0 10px 10px 0; }

.archive-table td {
  padding: 13px 16px;
  font-size: 14.5px;
  border-bottom: 1px solid var(--line);
  color: var(--text);
}

.archive-table tr:last-child td { border-bottom: none; }

.archive-table tbody tr { transition: background 0.2s ease; }
.archive-table tbody tr:hover { background: rgba(43, 74, 141, 0.04); }

.type-badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 100px;
  background: rgba(43, 74, 141, 0.08);
  color: var(--primary-3);
}

.sum-badge {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  min-width: 32px;
  text-align: center;
  padding: 3px 10px;
  border-radius: 8px;
  background: rgba(217, 164, 65, 0.15);
  color: #8a6412;
}

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

.step-card {
  position: relative;
  background: var(--card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  padding: 36px 28px 30px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  overflow: hidden;
}

.step-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); }

.step-num {
  font-size: 52px;
  font-weight: 800;
  color: rgba(22, 38, 75, 0.08);
  line-height: 1;
  margin-bottom: 18px;
  font-family: Georgia, serif;
}

.step-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(to bottom, var(--accent), var(--primary-3));
  border-radius: 0 4px 4px 0;
}

.step-title { font-size: 19px; font-weight: 700; color: var(--primary); margin-bottom: 10px; }
.step-text { font-size: 14px; color: var(--muted); line-height: 1.8; }

/* ===== FAQ ===== */
.faq-list { max-width: 860px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }

.faq-item {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 22px 26px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  cursor: pointer;
}

.faq-item:hover { border-color: rgba(43, 74, 141, 0.25); box-shadow: var(--shadow-md); }

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
}

.faq-question i {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
  border-radius: 50%;
  background: rgba(43, 74, 141, 0.08);
  color: var(--primary-3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  transition: transform 0.4s ease, background 0.3s ease;
}

.faq-item.active .faq-question i { transform: rotate(180deg); background: var(--primary); color: #fff; }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  font-size: 15px;
  color: var(--muted);
  line-height: 1.8;
  padding-top: 0;
}

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

/* ===== CTA ===== */
.cta-section { padding-bottom: 84px; }

.cta-box {
  position: relative;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 50%, var(--primary-3) 100%);
  border-radius: 24px;
  padding: 56px 60px;
  overflow: hidden;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  box-shadow: 0 20px 60px rgba(22, 38, 75, 0.25);
}

.cta-box::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -60px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(217, 164, 65, 0.15);
  filter: blur(60px);
}

.cta-box::after {
  content: '';
  position: absolute;
  bottom: -40px;
  left: 30%;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  filter: blur(30px);
}

.cta-content { position: relative; z-index: 2; }

.cta-content h3 { font-size: 28px; font-weight: 800; margin-bottom: 10px; }

.cta-content p { font-size: 15px; color: rgba(255,255,255,0.8); max-width: 520px; }

.cta-actions { position: relative; z-index: 2; display: flex; flex-wrap: wrap; gap: 12px; flex-shrink: 0; }

/* ===== Footer ===== */
.site-footer {
  background: var(--primary);
  color: rgba(255, 255, 255, 0.75);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .logo { margin-bottom: 16px; }
.footer-brand .logo-text { color: #fff; }
.footer-brand .logo-text span { color: var(--accent); }
.footer-brand .logo-icon { background: rgba(255,255,255,0.12); box-shadow: none; }
.footer-brand p { font-size: 14px; line-height: 1.9; color: rgba(255,255,255,0.6); max-width: 420px; }

.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
  letter-spacing: 0.5px;
}

.footer-col ul { display: flex; flex-direction: column; gap: 10px; }

.footer-col a {
  color: rgba(255,255,255,0.65);
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}

.footer-col a i { font-size: 10px; opacity: 0.7; }

.footer-col a:hover { color: var(--accent); transform: translateX(3px); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 24px 0;
  font-size: 13px;
  color: rgba(255,255,255,0.45);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .dim-grid { grid-template-columns: repeat(2, 1fr); }
  .value-grid { gap: 36px; }
  .cta-box { flex-direction: column; text-align: center; padding: 44px 36px; }
  .cta-actions { justify-content: center; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 820px) {
  .header-inner { height: 64px; }
  .nav-toggle { display: flex; }
  .header-nav {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 16px 40px rgba(22, 38, 75, 0.1);
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px;
    gap: 6px;
    display: none;
  }
  .header-nav.open { display: flex; }
  .nav-item { width: 100%; justify-content: flex-start; padding: 12px 14px; }
  .mega-panel {
    position: static;
    width: 100%;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: 1px solid var(--line);
    margin-top: 8px;
    display: none;
  }
  .mega-wrap.mega-open .mega-panel { display: flex; }
  .hero { padding: 64px 0; }
  .hero-title { font-size: 34px; }
  .metric-grid { grid-template-columns: repeat(2, 1fr); }
  .value-grid { grid-template-columns: 1fr; }
  .value-image::after { display: none; }
  .steps-grid { grid-template-columns: 1fr; }
  .section { padding: 60px 0; }
  .section-title { font-size: 28px; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .metric-grid { grid-template-columns: 1fr; }
  .dim-grid { grid-template-columns: 1fr; }
  .hero-title { font-size: 28px; }
  .hero-sub { font-size: 15px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { justify-content: center; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .table-wrap { padding: 20px; }
  .cta-box { padding: 36px 22px; }
  .cta-content h3 { font-size: 23px; }
  .section-title { font-size: 24px; }
  .mega-panel { flex-direction: column; }
}

/* roulang page: category2 */
:root {
            --primary: #1e3a5f;
            --primary-light: #2d4f7a;
            --primary-dark: #14283f;
            --accent: #f59e0b;
            --accent-hover: #d97706;
            --bg: #f4f6fa;
            --card: #ffffff;
            --text: #12263f;
            --text-light: #5b6b7c;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 10px 30px rgba(30, 58, 95, 0.08);
            --shadow-lg: 0 20px 50px rgba(30, 58, 95, 0.12);
            --transition: all 0.3s ease;
            --container: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Heiti SC", sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button {
            font-family: inherit;
            border: none;
            cursor: pointer;
            background: none;
        }

        input,
        textarea {
            font-family: inherit;
        }

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

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

        .section {
            padding: 80px 0;
        }

        .section-white {
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .section-head {
            max-width: 720px;
            margin-bottom: 48px;
        }

        .section-head.center {
            margin-left: auto;
            margin-right: auto;
            text-align: center;
        }

        .section-tag {
            display: inline-block;
            background: rgba(245, 158, 11, 0.12);
            color: var(--accent-hover);
            font-size: 13px;
            font-weight: 600;
            padding: 5px 16px;
            border-radius: 30px;
            letter-spacing: 0.5px;
            margin-bottom: 16px;
        }

        .section-head h2 {
            font-size: 30px;
            line-height: 1.3;
            color: var(--text);
            margin-bottom: 12px;
        }

        .section-head p {
            color: var(--text-light);
            font-size: 15px;
            line-height: 1.8;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 12px 28px;
            border-radius: 30px;
            font-size: 15px;
            font-weight: 600;
            line-height: 1.2;
            transition: var(--transition);
            border: 1px solid transparent;
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 8px 22px rgba(245, 158, 11, 0.3);
        }

        .btn-accent:hover {
            background: var(--accent-hover);
            transform: translateY(-2px);
            box-shadow: 0 12px 28px rgba(245, 158, 11, 0.35);
        }

        .btn-outline-light {
            border-color: rgba(255, 255, 255, 0.5);
            color: #fff;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            transform: translateY(-2px);
        }

        .btn-lg {
            padding: 15px 36px;
            font-size: 16px;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.94);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border);
            box-shadow: 0 4px 20px rgba(30, 58, 95, 0.05);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            height: 76px;
        }

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

        .logo-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            box-shadow: 0 8px 18px rgba(30, 58, 95, 0.25);
        }

        .logo-text {
            font-size: 22px;
            font-weight: 800;
            color: var(--text);
            line-height: 1.15;
            letter-spacing: -0.3px;
        }

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

        .header-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .nav-item {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 10px 16px;
            border-radius: 10px;
            color: var(--text);
            font-weight: 500;
            font-size: 14px;
            white-space: nowrap;
            transition: var(--transition);
        }

        .nav-item i {
            font-size: 13px;
            opacity: 0.85;
        }

        .nav-item:hover {
            background: rgba(30, 58, 95, 0.06);
            color: var(--primary);
        }

        .nav-item.active {
            background: var(--primary);
            color: #fff;
            box-shadow: 0 8px 18px rgba(30, 58, 95, 0.22);
        }

        .mega-wrap {
            position: relative;
        }

        .mega-wrap::after {
            content: '';
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            height: 16px;
        }

        .mega-panel {
            position: absolute;
            top: calc(100% + 14px);
            left: 50%;
            transform: translateX(-50%) translateY(10px);
            width: 540px;
            background: #fff;
            border-radius: 18px;
            box-shadow: var(--shadow-lg);
            border: 1px solid var(--border);
            padding: 22px;
            display: flex;
            gap: 28px;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            z-index: 50;
        }

        .mega-wrap:hover .mega-panel,
        .mega-wrap:focus-within .mega-panel {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(0);
        }

        .mega-col {
            flex: 1;
        }

        .mega-title {
            font-size: 12px;
            font-weight: 700;
            color: var(--text-light);
            letter-spacing: 1.5px;
            text-transform: uppercase;
            margin-bottom: 14px;
            padding-bottom: 8px;
            border-bottom: 1px solid var(--border);
        }

        .mega-link {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 9px 12px;
            border-radius: 10px;
            color: var(--text);
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
        }

        .mega-link i {
            width: 20px;
            color: var(--primary);
            font-size: 14px;
        }

        .mega-link:hover {
            background: rgba(245, 158, 11, 0.1);
            color: var(--accent-hover);
            transform: translateX(4px);
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 10px;
            background: rgba(30, 58, 95, 0.06);
            color: var(--primary);
            font-size: 18px;
            align-items: center;
            justify-content: center;
            transition: var(--transition);
        }

        .nav-toggle:hover {
            background: rgba(30, 58, 95, 0.12);
        }

        .page-hero {
            position: relative;
            background: linear-gradient(135deg, rgba(20, 40, 63, 0.94), rgba(30, 58, 95, 0.82)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            padding: 96px 0 88px;
            color: #fff;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 28px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: rgba(255, 255, 255, 0.75);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

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

        .breadcrumb i {
            font-size: 10px;
            opacity: 0.6;
        }

        .hero-content {
            max-width: 760px;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.18);
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 500;
            margin-bottom: 20px;
        }

        .hero-content h1 {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.25;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .hero-content p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.88);
            line-height: 1.8;
            max-width: 680px;
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .topic-section {
            padding: 90px 0;
        }

        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .topic-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 30px;
            position: relative;
            overflow: hidden;
            transition: var(--transition);
        }

        .topic-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: var(--accent);
            transform: scaleX(0);
            transform-origin: left;
            transition: transform 0.4s ease;
        }

        .topic-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(30, 58, 95, 0.15);
        }

        .topic-card:hover::before {
            transform: scaleX(1);
        }

        .topic-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: rgba(30, 58, 95, 0.08);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 20px;
            transition: var(--transition);
        }

        .topic-card:hover .topic-icon {
            background: var(--primary);
            color: #fff;
        }

        .topic-card h3 {
            font-size: 18px;
            margin-bottom: 10px;
            line-height: 1.4;
        }

        .topic-card p {
            color: var(--text-light);
            font-size: 14px;
            line-height: 1.75;
            margin: 0;
        }

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

        .rule-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 20px;
            overflow: hidden;
            transition: var(--transition);
        }

        .rule-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(30, 58, 95, 0.15);
        }

        .rule-img {
            position: relative;
            height: 220px;
            overflow: hidden;
            background: var(--bg);
        }

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

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

        .rule-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--accent);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 20px;
            box-shadow: 0 4px 12px rgba(245, 158, 11, 0.4);
        }

        .rule-body {
            padding: 26px;
        }

        .rule-body h3 {
            font-size: 19px;
            line-height: 1.4;
            margin-bottom: 10px;
        }

        .rule-body p {
            color: var(--text-light);
            font-size: 14px;
            line-height: 1.75;
            margin-bottom: 18px;
        }

        .rule-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(30, 58, 95, 0.06);
            color: var(--primary);
            font-size: 13px;
            padding: 5px 14px;
            border-radius: 20px;
            font-weight: 500;
        }

        .steps-section {
            position: relative;
        }

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

        .step-item {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 28px;
            transition: var(--transition);
        }

        .step-item:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow);
            border-color: rgba(30, 58, 95, 0.15);
        }

        .step-num {
            width: 52px;
            height: 52px;
            border-radius: 16px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 18px;
            box-shadow: 0 8px 18px rgba(30, 58, 95, 0.22);
        }

        .step-content h3 {
            font-size: 17px;
            margin-bottom: 8px;
        }

        .step-content p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin: 0;
        }

        .articles-section {
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .articles-list {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .article-item {
            display: flex;
            align-items: center;
            gap: 22px;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 18px;
            padding: 22px 24px;
            transition: var(--transition);
        }

        .article-item:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow);
            border-color: rgba(30, 58, 95, 0.12);
        }

        .article-date {
            display: flex;
            flex-direction: column;
            align-items: center;
            min-width: 82px;
            padding: 12px 10px;
            background: #fff;
            border-radius: 14px;
            border: 1px solid var(--border);
            text-align: center;
        }

        .article-date .day {
            font-size: 14px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
        }

        .article-tag {
            display: inline-flex;
            background: rgba(245, 158, 11, 0.12);
            color: var(--accent-hover);
            font-size: 12px;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 20px;
            margin-top: 6px;
        }

        .article-main {
            flex: 1;
            min-width: 0;
        }

        .article-main h3 {
            font-size: 17px;
            line-height: 1.45;
            margin-bottom: 6px;
            color: var(--text);
        }

        .article-main p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .article-more a {
            width: 42px;
            height: 42px;
            border-radius: 50%;
            background: #fff;
            border: 1px solid var(--border);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 14px;
            transition: var(--transition);
        }

        .article-more a:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            transform: translateX(3px);
        }

        .notes-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .note-card {
            background: var(--card);
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 30px;
            transition: var(--transition);
        }

        .note-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow);
        }

        .note-icon {
            width: 54px;
            height: 54px;
            border-radius: 16px;
            background: rgba(245, 158, 11, 0.12);
            color: var(--accent-hover);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 18px;
        }

        .note-card h3 {
            font-size: 16px;
            line-height: 1.4;
            margin-bottom: 8px;
        }

        .note-card p {
            font-size: 14px;
            color: var(--text-light);
            line-height: 1.7;
            margin: 0;
        }

        .faq-section {
            background: #fff;
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .faq-wrap {
            max-width: 860px;
        }

        .faq-item {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 16px;
            margin-bottom: 12px;
            transition: var(--transition);
            overflow: hidden;
        }

        .faq-item.open {
            border-color: rgba(30, 58, 95, 0.2);
            box-shadow: var(--shadow);
        }

        .faq-q {
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 16px;
            padding: 20px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 16px;
            line-height: 1.5;
            color: var(--text);
        }

        .faq-q i {
            font-size: 14px;
            color: var(--primary);
            transition: transform 0.35s ease;
            flex-shrink: 0;
        }

        .faq-item.open .faq-q i {
            transform: rotate(180deg);
        }

        .faq-a {
            max-height: 0;
            overflow: hidden;
            padding: 0 24px;
            transition: max-height 0.4s ease, padding 0.4s ease;
        }

        .faq-item.open .faq-a {
            max-height: 400px;
            padding: 0 24px 22px;
        }

        .faq-a p {
            font-size: 14px;
            line-height: 1.8;
            color: var(--text-light);
            margin: 0;
            border-top: 1px dashed var(--border);
            padding-top: 16px;
        }

        .cta-section {
            padding: 80px 0;
        }

        .cta-box {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary));
            border-radius: 24px;
            padding: 52px 56px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 36px;
            color: #fff;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }

        .cta-box::after {
            content: '\f51e';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            position: absolute;
            right: 18px;
            bottom: -28px;
            font-size: 150px;
            opacity: 0.05;
            pointer-events: none;
        }

        .cta-content h2 {
            font-size: 26px;
            line-height: 1.4;
            margin-bottom: 10px;
        }

        .cta-content p {
            color: rgba(255, 255, 255, 0.85);
            font-size: 15px;
            line-height: 1.7;
            max-width: 520px;
        }

        .cta-box .btn {
            flex-shrink: 0;
            position: relative;
            z-index: 1;
        }

        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 44px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .site-footer .logo-text {
            color: #fff;
        }

        .site-footer .logo-text span {
            color: var(--accent);
        }

        .footer-brand p {
            font-size: 14px;
            margin: 18px 0 0;
            color: rgba(255, 255, 255, 0.65);
            max-width: 380px;
            line-height: 1.8;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            margin-bottom: 18px;
            font-weight: 600;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
        }

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

        .footer-col a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }

        .footer-col a i {
            font-size: 10px;
            color: var(--accent);
            transition: transform 0.3s ease;
        }

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

        .footer-bottom {
            padding: 22px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom p {
            margin: 0;
        }

        @media (max-width: 1024px) {
            .header-inner {
                height: 68px;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .header-nav {
                position: absolute;
                top: 68px;
                left: 0;
                right: 0;
                background: #fff;
                border-bottom: 1px solid var(--border);
                box-shadow: var(--shadow);
                flex-direction: column;
                align-items: stretch;
                padding: 16px 24px 20px;
                gap: 6px;
                display: none;
                max-height: calc(100vh - 68px);
                overflow-y: auto;
            }

            .header-nav.show {
                display: flex;
            }

            .nav-item {
                width: 100%;
                justify-content: flex-start;
                padding: 12px 16px;
                font-size: 15px;
            }

            .mega-wrap {
                width: 100%;
            }

            .mega-wrap > .nav-item {
                width: 100%;
            }

            .mega-panel {
                position: static;
                transform: none;
                width: 100%;
                opacity: 1;
                visibility: visible;
                box-shadow: none;
                border: none;
                border-radius: 0;
                padding: 0 0 0 16px;
                display: flex;
                gap: 0;
                margin-top: 2px;
                background: var(--bg);
                border-radius: 14px;
                padding: 12px;
            }

            .mega-wrap:hover .mega-panel,
            .mega-wrap:focus-within .mega-panel {
                transform: none;
            }

            .mega-col {
                padding: 0 8px;
            }

            .mega-title {
                padding-bottom: 6px;
            }

            .page-hero {
                padding: 70px 0 64px;
            }

            .hero-content h1 {
                font-size: 36px;
            }

            .section {
                padding: 60px 0;
            }

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

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

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

            .articles-section .section-head {
                margin-bottom: 36px;
            }

            .article-item {
                flex-wrap: wrap;
            }

            .article-main {
                flex-basis: calc(100% - 110px);
            }

            .notes-grid {
                grid-template-columns: repeat(3, 1fr);
            }

            .cta-box {
                flex-direction: column;
                text-align: center;
                padding: 44px 32px;
            }

            .cta-content p {
                margin: 0 auto;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 36px;
            }

            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 18px;
            }

            .header-nav {
                padding: 14px 18px 18px;
            }

            .page-hero {
                padding: 56px 0 50px;
            }

            .hero-content h1 {
                font-size: 30px;
            }

            .hero-content p {
                font-size: 15px;
            }

            .hero-actions .btn {
                width: 100%;
            }

            .section {
                padding: 52px 0;
            }

            .section-head h2 {
                font-size: 25px;
            }

            .topic-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }

            .rules-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }

            .rule-img {
                height: 190px;
            }

            .steps-wrap {
                grid-template-columns: 1fr;
                gap: 18px;
            }

            .article-item {
                flex-direction: row;
                padding: 18px;
                gap: 14px;
            }

            .article-date {
                min-width: 70px;
                padding: 10px 8px;
            }

            .article-main h3 {
                font-size: 15px;
            }

            .article-main p {
                -webkit-line-clamp: 2;
            }

            .article-more {
                display: none;
            }

            .notes-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }

            .faq-q {
                padding: 16px 18px;
                font-size: 15px;
            }

            .faq-a {
                padding: 0 18px;
            }

            .faq-item.open .faq-a {
                padding: 0 18px 18px;
            }

            .cta-section {
                padding: 48px 0;
            }

            .cta-box {
                padding: 36px 24px;
                border-radius: 18px;
            }

            .cta-content h2 {
                font-size: 22px;
            }

            .cta-box .btn {
                width: 100%;
            }

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

            .footer-brand {
                grid-column: auto;
            }
        }

        @media (max-width: 520px) {
            .logo-text {
                font-size: 19px;
            }

            .logo-icon {
                width: 40px;
                height: 40px;
                font-size: 18px;
            }

            .header-inner {
                height: 62px;
            }

            .header-nav {
                top: 62px;
            }

            .mega-panel {
                flex-direction: column;
            }

            .page-hero {
                padding: 46px 0 42px;
            }

            .hero-content h1 {
                font-size: 26px;
            }

            .hero-badge {
                font-size: 12px;
            }

            .section {
                padding: 44px 0;
            }

            .section-head {
                margin-bottom: 34px;
            }

            .section-head h2 {
                font-size: 22px;
            }

            .section-head p {
                font-size: 14px;
            }

            .topic-card,
            .rule-body,
            .step-item,
            .note-card {
                padding: 22px;
            }

            .rule-img {
                height: 170px;
            }

            .article-date {
                min-width: 62px;
            }

            .article-date .day {
                font-size: 13px;
            }

            .article-tag {
                font-size: 11px;
                padding: 2px 10px;
            }

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

            .faq-a p {
                font-size: 13px;
            }

            .cta-box {
                padding: 28px 20px;
            }

            .cta-content h2 {
                font-size: 20px;
            }
        }