/* roulang page: index */
:root {
  --primary: #0a1628;
  --primary-light: #112240;
  --accent: #2f6df6;
  --accent-2: #ffb454;
  --accent-3: #06b6d4;
  --bg: #f0f4fa;
  --bg-card: #ffffff;
  --text: #1a2332;
  --text-muted: #5a6b85;
  --border: #e1e8f0;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 28px;
  --shadow: 0 6px 30px rgba(10, 22, 40, 0.08);
  --shadow-hover: 0 12px 40px rgba(10, 22, 40, 0.14);
  --transition: .28s ease;
  --header-height: 76px;
  --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: color var(--transition); }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea { font-family: inherit; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: 88px 0; }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 52px; }
.section-kicker { display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .12em; color: var(--accent); background: rgba(47, 109, 246, .10); padding: 4px 14px; border-radius: 999px; margin-bottom: 16px; text-transform: uppercase; }
.section-head h2 { font-size: clamp(26px, 4vw, 36px); font-weight: 800; line-height: 1.3; color: var(--text); margin-bottom: 12px; }
.section-head p { color: var(--text-muted); font-size: 16px; line-height: 1.7; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; font-size: 15px; font-weight: 600; padding: 14px 32px; border-radius: 999px; transition: all var(--transition); border: 2px solid transparent; }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 4px 20px rgba(47, 109, 246, .35); }
.btn-primary:hover { background: #1d4ed8; box-shadow: 0 8px 28px rgba(47, 109, 246, .45); transform: translateY(-2px); }
.btn-outline { background: transparent; border-color: rgba(255, 255, 255, .5); color: #fff; }
.btn-outline:hover { border-color: #fff; background: rgba(255, 255, 255, .12); }
.btn-dark { background: var(--primary); color: #fff; }
.btn-dark:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: var(--shadow); }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--text); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.site-header { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; background: rgba(255, 255, 255, .68); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid rgba(255, 255, 255, .25); transition: background var(--transition), box-shadow var(--transition), border-color var(--transition); }
.site-header.scrolled { background: rgba(255, 255, 255, .94); border-bottom-color: rgba(225, 232, 240, .7); box-shadow: 0 4px 30px rgba(10, 22, 40, .06); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-height); gap: 24px; }
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-badge { width: 38px; height: 38px; border-radius: 12px; background: linear-gradient(135deg, var(--accent), var(--accent-3)); display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 800; font-size: 13px; letter-spacing: .02em; box-shadow: 0 4px 16px rgba(47, 109, 246, .3); }
.logo-text { font-size: 18px; font-weight: 800; color: var(--text); letter-spacing: .01em; }
.logo-text small { font-weight: 500; color: var(--text-muted); font-size: 13px; margin-left: 2px; }
.main-nav { display: flex; gap: 6px; align-items: center; }
.main-nav .nav-link { padding: 8px 18px; border-radius: 999px; font-weight: 500; font-size: 15px; color: var(--text); transition: all var(--transition); position: relative; }
.main-nav .nav-link:hover { background: rgba(47, 109, 246, .08); color: var(--accent); }
.main-nav .nav-link.active { background: var(--accent); color: #fff; box-shadow: 0 4px 14px rgba(47, 109, 246, .28); }
.header-actions { display: flex; align-items: center; gap: 12px; }
.header-actions .btn-sm { padding: 9px 22px; font-size: 14px; }
.nav-toggle { display: none; width: 42px; height: 42px; border-radius: 12px; background: rgba(47, 109, 246, .08); color: var(--text); font-size: 20px; align-items: center; justify-content: center; transition: all var(--transition); }
.nav-toggle:hover { background: rgba(47, 109, 246, .16); }
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; padding-top: var(--header-height); background-image: url('/assets/images/backpic/back-1.png'); background-size: cover; background-position: center; background-attachment: fixed; isolation: isolate; }
.hero::before { content: ''; position: absolute; inset: 0; background: linear-gradient(120deg, rgba(10, 22, 40, .88) 0%, rgba(10, 22, 40, .72) 45%, rgba(10, 22, 40, .35) 100%); z-index: -1; }
.hero-inner { max-width: 720px; color: #fff; padding: 120px 0 80px; }
.hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255, 255, 255, .14); backdrop-filter: blur(8px); border: 1px solid rgba(255, 255, 255, .2); color: #fff; padding: 6px 18px; border-radius: 999px; font-size: 13px; font-weight: 600; letter-spacing: .04em; margin-bottom: 28px; }
.hero-badge .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-2); box-shadow: 0 0 12px var(--accent-2); }
.hero-inner h1 { font-size: clamp(34px, 5.4vw, 56px); font-weight: 800; line-height: 1.2; letter-spacing: .01em; margin-bottom: 22px; }
.hero-inner h1 .highlight { background: linear-gradient(90deg, var(--accent-2), #ffd08a); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-inner p { font-size: 17px; line-height: 1.8; color: rgba(255, 255, 255, .88); max-width: 580px; margin-bottom: 36px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }
.hero-metrics { display: flex; flex-wrap: wrap; gap: 40px; margin-top: 56px; padding-top: 36px; border-top: 1px solid rgba(255, 255, 255, .16); }
.hero-metric .num { font-size: 28px; font-weight: 800; color: #fff; line-height: 1.2; }
.hero-metric .label { font-size: 13px; color: rgba(255, 255, 255, .6); margin-top: 2px; }
.features { padding: 88px 0; background: var(--bg); }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.feature-card { background: var(--bg-card); border-radius: var(--radius); padding: 36px 30px; border: 1px solid var(--border); box-shadow: var(--shadow); transition: all var(--transition); position: relative; overflow: hidden; }
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }
.feature-card .icon { width: 56px; height: 56px; border-radius: 15px; display: flex; align-items: center; justify-content: center; font-size: 24px; margin-bottom: 22px; }
.feature-card .icon.i-blue { background: rgba(47, 109, 246, .12); color: var(--accent); }
.feature-card .icon.i-amber { background: rgba(255, 180, 84, .14); color: #d97706; }
.feature-card .icon.i-cyan { background: rgba(6, 182, 212, .14); color: #0891b2; }
.feature-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; }
.feature-card p { color: var(--text-muted); font-size: 14px; line-height: 1.7; }
.categories { padding: 88px 0; background: #fff; }
.categories-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
.category-card { position: relative; border-radius: var(--radius-lg); overflow: hidden; min-height: 340px; display: flex; align-items: flex-end; isolation: isolate; transition: all var(--transition); }
.category-card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; transition: transform .6s ease; }
.category-card::before { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(10, 22, 40, .05) 0%, rgba(10, 22, 40, .45) 60%, rgba(10, 22, 40, .82) 100%); z-index: -1; }
.category-card:hover img { transform: scale(1.06); }
.category-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.category-card .card-body { padding: 36px; color: #fff; width: 100%; }
.category-card .card-tag { display: inline-block; font-size: 12px; font-weight: 700; letter-spacing: .08em; background: rgba(255, 255, 255, .22); backdrop-filter: blur(6px); padding: 4px 14px; border-radius: 999px; margin-bottom: 12px; }
.category-card h3 { font-size: 26px; font-weight: 800; margin-bottom: 8px; }
.category-card p { font-size: 14px; color: rgba(255, 255, 255, .82); margin-bottom: 18px; }
.category-card .card-link { font-size: 15px; font-weight: 600; display: inline-flex; align-items: center; gap: 6px; color: #fff; }
.category-card .card-link:hover { gap: 12px; }
.news { padding: 88px 0; background: var(--bg); }
.news-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.news-card { background: var(--bg-card); border-radius: var(--radius); overflow: hidden; border: 1px solid var(--border); box-shadow: var(--shadow); transition: all var(--transition); display: flex; flex-direction: column; }
.news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.news-card .news-img { aspect-ratio: 16/9; overflow: hidden; position: relative; }
.news-card .news-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.news-card:hover .news-img img { transform: scale(1.05); }
.news-card .news-body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.news-card .news-dot { position: absolute; top: 14px; left: 14px; background: rgba(10, 22, 40, .7); backdrop-filter: blur(6px); color: #fff; font-size: 12px; font-weight: 600; padding: 4px 12px; border-radius: 999px; }
.news-card h3 { font-size: 18px; font-weight: 700; line-height: 1.5; margin-bottom: 10px; transition: color var(--transition); }
.news-card:hover h3 { color: var(--accent); }
.news-card p { color: var(--text-muted); font-size: 14px; line-height: 1.7; flex: 1; margin-bottom: 16px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-meta { display: flex; align-items: center; gap: 14px; color: var(--text-muted); font-size: 13px; }
.news-meta .cat { color: var(--accent); font-weight: 600; }
.empty-tip { text-align: center; color: var(--text-muted); font-size: 16px; padding: 48px 0; }
.stats { padding: 88px 0; background: var(--primary); background-image: url('/assets/images/backpic/back-2.png'); background-size: cover; background-position: center; background-attachment: fixed; position: relative; isolation: isolate; }
.stats::before { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(10, 22, 40, .96), rgba(10, 22, 40, .84)); z-index: -1; }
.stats-inner { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; text-align: center; }
.stat-item .num { font-size: 44px; font-weight: 800; color: #fff; line-height: 1.2; }
.stat-item .num span { color: var(--accent-2); }
.stat-item .label { font-size: 14px; color: rgba(255, 255, 255, .6); margin-top: 8px; }
.topics { padding: 88px 0; background: #fff; }
.topic-scroll { display: grid; grid-auto-flow: column; grid-auto-columns: 280px; gap: 24px; overflow-x: auto; padding-bottom: 20px; scroll-snap-type: x mandatory; }
.topic-scroll::-webkit-scrollbar { height: 6px; }
.topic-scroll::-webkit-scrollbar-track { background: var(--border); border-radius: 999px; }
.topic-scroll::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 999px; }
.topic-card { border-radius: var(--radius); overflow: hidden; background: var(--bg-card); border: 1px solid var(--border); scroll-snap-align: start; transition: all var(--transition); }
.topic-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.topic-card img { aspect-ratio: 16/10; object-fit: cover; }
.topic-card .topic-body { padding: 22px; }
.topic-card h4 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.topic-card p { color: var(--text-muted); font-size: 13px; line-height: 1.6; }
.topic-card .topic-tag { display: inline-block; font-size: 12px; color: var(--accent); background: rgba(47, 109, 246, .1); padding: 3px 10px; border-radius: 999px; margin: 4px 0 8px; }
.faq { padding: 88px 0; background: var(--bg); }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { background: var(--bg-card); border-radius: var(--radius); border: 1px solid var(--border); margin-bottom: 14px; overflow: hidden; transition: all var(--transition); }
.faq-item:hover { border-color: rgba(47, 109, 246, .4); }
.faq-item.open { border-color: var(--accent); box-shadow: 0 4px 20px rgba(47, 109, 246, .08); }
.faq-question { width: 100%; display: flex; align-items: center; justify-content: space-between; padding: 22px 28px; font-size: 16px; font-weight: 600; color: var(--text); background: none; text-align: left; }
.faq-question .icon { width: 28px; height: 28px; border-radius: 50%; background: rgba(47, 109, 246, .1); color: var(--accent); display: flex; align-items: center; justify-content: center; font-size: 18px; transition: transform var(--transition); flex-shrink: 0; }
.faq-item.open .faq-question .icon { transform: rotate(45deg); background: var(--accent); color: #fff; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .4s ease; }
.faq-item.open .faq-answer { max-height: 300px; }
.faq-answer-inner { padding: 0 28px 22px; color: var(--text-muted); font-size: 14px; line-height: 1.8; }
.cta { padding: 88px 0; background: var(--primary); background-image: url('/assets/images/backpic/back-3.png'); background-size: cover; background-position: center; position: relative; isolation: isolate; }
.cta::before { content: ''; position: absolute; inset: 0; background: rgba(10, 22, 40, .88); z-index: -1; }
.cta-inner { text-align: center; max-width: 640px; margin: 0 auto; color: #fff; }
.cta-inner h2 { font-size: clamp(26px, 4vw, 40px); font-weight: 800; margin-bottom: 16px; }
.cta-inner p { font-size: 16px; color: rgba(255, 255, 255, .76); margin-bottom: 32px; line-height: 1.8; }
.cta-inner .btn { margin: 0 8px; }
.site-footer { background: #070f1c; color: rgba(255, 255, 255, .7); padding: 56px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; margin-bottom: 44px; }
.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, .6); max-width: 360px; }
.footer-col h4 { color: #fff; font-size: 16px; font-weight: 600; margin-bottom: 18px; }
.footer-col a { display: block; font-size: 14px; padding: 6px 0; color: rgba(255, 255, 255, .6); transition: color var(--transition); }
.footer-col a:hover { color: var(--accent); }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, .08); padding-top: 28px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; font-size: 13px; color: rgba(255, 255, 255, .4); }
.footer-bottom a { color: rgba(255, 255, 255, .4); }
@media (max-width: 1024px) {
  .container { padding: 0 20px; }
  .section { padding: 68px 0; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-inner { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .main-nav { position: absolute; top: var(--header-height); left: 0; right: 0; background: #fff; flex-direction: column; align-items: flex-start; padding: 16px 24px; gap: 4px; border-bottom: 1px solid var(--border); box-shadow: var(--shadow); transform: translateY(-100%); opacity: 0; pointer-events: none; transition: all .35s ease; }
  .main-nav.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .main-nav .nav-link { width: 100%; padding: 12px 16px; }
  .hero { background-attachment: scroll; }
  .hero-inner { padding: 100px 0 60px; }
  .hero-inner h1 { font-size: 32px; }
  .hero-metrics { gap: 24px; }
  .categories-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .topic-scroll { grid-auto-columns: 240px; }
  .footer-grid { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .section { padding: 56px 0; }
  .features-grid { grid-template-columns: 1fr; }
  .stats-inner { grid-template-columns: 1fr 1fr; gap: 24px; }
  .stat-item .num { font-size: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
:root {
    --primary: #E63946;
    --primary-dark: #C1292E;
    --primary-light: rgba(230, 57, 70, 0.12);
    --secondary: #141E30;
    --secondary-2: #1B2440;
    --accent: #F7B733;
    --bg: #F4F6F9;
    --bg-light: #FFFFFF;
    --bg-dark: #0D1117;
    --text: #202B38;
    --text-light: #5A6A7E;
    --text-muted: #8895A7;
    --border: #E5E9F0;
    --border-dark: rgba(255, 255, 255, 0.12);
    --radius: 16px;
    --radius-sm: 10px;
    --radius-lg: 24px;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* ===== Reset / 基础 ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body { font-family: var(--font); line-height: 1.7; background: var(--bg); color: var(--text); font-size: 15px; overflow-x: hidden; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
button, input { font-family: inherit; }
ul, ol { list-style: none; }

/* ===== 容器 ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ===== 按钮 ===== */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 11px 24px; border-radius: var(--radius-sm);
    font-size: 14px; font-weight: 600; letter-spacing: 0.2px;
    border: none; cursor: pointer; transition: var(--transition);
    text-decoration: none; line-height: 1.4;
}
.btn:focus-visible { outline: 3px solid rgba(230, 57, 70, 0.4); outline-offset: 2px; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 18px rgba(230, 57, 70, 0.35); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(230, 57, 70, 0.42); }
.btn-primary:active { transform: translateY(0); box-shadow: 0 2px 10px rgba(230, 57, 70, 0.3); }
.btn-outline { background: transparent; color: #fff; border: 1.5px solid rgba(255, 255, 255, 0.7); }
.btn-outline:hover { background: rgba(255, 255, 255, 0.12); border-color: #fff; transform: translateY(-2px); }
.btn-sm { padding: 8px 16px; font-size: 13px; border-radius: 8px; }

/* ===== Header 透明玻璃导航 ===== */
.site-header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 100;
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: blur(20px) saturate(160%);
    -webkit-backdrop-filter: blur(20px) saturate(160%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.28);
    box-shadow: 0 1px 24px rgba(0, 0, 0, 0.06);
    transition: background 0.4s ease, box-shadow 0.4s ease;
}
.site-header.scrolled {
    background: rgba(255, 255, 255, 0.94);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.08);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 16px; }

.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-badge {
    width: 40px; height: 40px; border-radius: 12px;
    background: linear-gradient(135deg, #FF5A5F 0%, #C1292E 100%);
    color: #fff; display: flex; align-items: center; justify-content: center;
    font-weight: 800; font-size: 15px; letter-spacing: 0.5px;
    box-shadow: 0 4px 12px rgba(230, 57, 70, 0.4);
}
.logo-text { font-size: 18px; font-weight: 750; color: var(--secondary); letter-spacing: 0.2px; line-height: 1.2; }
.logo-text small { display: block; font-size: 10px; color: var(--text-muted); letter-spacing: 3px; font-weight: 600; text-transform: uppercase; }

.main-nav { display: flex; gap: 28px; align-items: center; }
.nav-link {
    color: var(--text-light); font-size: 14.5px; font-weight: 500;
    padding: 6px 2px; position: relative; transition: color 0.3s;
    white-space: nowrap;
}
.nav-link::after {
    content: ""; position: absolute; bottom: 0; left: 0; right: 0;
    height: 2px; background: var(--primary); border-radius: 2px;
    transform: scaleX(0); transform-origin: center; transition: transform 0.35s ease;
}
.nav-link:hover { color: var(--primary); }
.nav-link.active { color: var(--primary); }
.nav-link.active::after { transform: scaleX(1); }

.header-actions { display: flex; align-items: center; gap: 14px; }
.header-actions .btn { white-space: nowrap; }

.nav-toggle {
    display: none; background: none; border: none; cursor: pointer;
    font-size: 24px; color: var(--text); padding: 4px; border-radius: 8px;
    transition: background 0.2s;
}
.nav-toggle:hover { background: rgba(0, 0, 0, 0.05); }

/* ===== 页面 Hero ===== */
.page-hero {
    position: relative; padding: 170px 0 90px;
    background: linear-gradient(135deg, rgba(20, 30, 48, 0.95), rgba(27, 36, 64, 0.88)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    overflow: hidden; color: #fff;
}
.page-hero::before {
    content: ''; position: absolute; top: -80px; right: -60px;
    width: 420px; height: 420px; border-radius: 50%;
    background: radial-gradient(circle, rgba(230, 57, 70, 0.25) 0%, transparent 70%);
    pointer-events: none;
}
.page-hero::after {
    content: ''; position: absolute; bottom: -120px; left: -80px;
    width: 360px; height: 360px; border-radius: 50%;
    background: radial-gradient(circle, rgba(247, 183, 51, 0.15) 0%, transparent 70%);
    pointer-events: none;
}
.page-hero .container { position: relative; z-index: 2; }

.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 13px; color: rgba(255, 255, 255, 0.7); margin-bottom: 16px; }
.breadcrumb a { color: rgba(255, 255, 255, 0.7); transition: color 0.3s; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { color: rgba(255, 255, 255, 0.4); }

.page-hero h1 { font-size: 46px; font-weight: 800; line-height: 1.2; letter-spacing: -0.5px; margin-bottom: 14px; }
.page-hero h1 .highlight { color: var(--accent); }
.page-hero .subtitle { font-size: 16px; line-height: 1.8; max-width: 640px; color: rgba(255, 255, 255, 0.85); margin-bottom: 30px; }

.hero-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.hero-tag {
    padding: 5px 14px; border-radius: 20px; font-size: 12.5px; font-weight: 500;
    background: rgba(255, 255, 255, 0.12); border: 1px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.9); backdrop-filter: blur(4px);
}

/* ===== 板块通用 ===== */
.section { padding: 16px 0; }
.section-pad { padding: 84px 0; }
.section-dark { background: var(--bg-dark); color: #fff; }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 40px; flex-wrap: wrap; }
.section-head .eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600; color: var(--primary); letter-spacing: 2px; text-transform: uppercase; margin-bottom: 8px; }
.section-head h2 { font-size: 32px; font-weight: 800; letter-spacing: -0.3px; line-height: 1.3; }
.section-head p { color: var(--text-light); max-width: 560px; line-height: 1.7; margin-top: 6px; }
.section-head .more-link { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; color: var(--primary); transition: gap 0.3s; }
.section-head .more-link:hover { gap: 12px; }

/* ===== 核心介绍区 ===== */
.intro-section { padding: 84px 0; background: var(--bg-light); }
.intro-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 64px; align-items: center; }
.intro-imgwrap { position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
.intro-imgwrap img { width: 100%; height: 380px; object-fit: cover; }
.intro-imgwrap::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 60%, rgba(0, 0, 0, 0.25)); }
.intro-imgwrap .img-tag {
    position: absolute; bottom: 18px; left: 18px; z-index: 2;
    padding: 6px 14px; border-radius: 20px; font-size: 12px; font-weight: 600;
    background: rgba(255, 255, 255, 0.22); backdrop-filter: blur(8px);
    color: #fff; border: 1px solid rgba(255, 255, 255, 0.3);
}
.intro-content h2 { font-size: 30px; font-weight: 800; line-height: 1.35; margin-bottom: 16px; }
.intro-content > p { color: var(--text-light); font-size: 15px; line-height: 1.9; margin-bottom: 8px; }
.intro-features { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 24px 0 28px; }
.feature-item {
    display: flex; align-items: center; gap: 10px; padding: 12px 14px;
    background: var(--bg); border-radius: var(--radius-sm); border: 1px solid var(--border);
    font-size: 14px; font-weight: 500; transition: var(--transition);
}
.feature-item:hover { border-color: var(--primary); background: var(--primary-light); transform: translateX(4px); }
.feature-item i { color: var(--primary); font-size: 16px; width: 20px; text-align: center; }

/* ===== 更新条 ===== */
.ticker-wrap {
    background: var(--secondary); color: #fff; padding: 14px 0; overflow: hidden;
    position: relative; border-bottom: 1px solid var(--border-dark);
}
.ticker-inner { display: flex; align-items: center; gap: 20px; }
.ticker-label {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--primary); padding: 4px 14px; border-radius: 20px;
    font-size: 12px; font-weight: 700; white-space: nowrap; flex-shrink: 0;
}
.ticker-stack { display: flex; gap: 32px; overflow: hidden; white-space: nowrap; animation: ticker-scroll 36s linear infinite; flex: 1; }
.ticker-item { font-size: 13px; color: rgba(255, 255, 255, 0.88); display: inline-flex; align-items: center; gap: 6px; }
.ticker-item::before { content: '●'; color: var(--accent); font-size: 8px; }
@keyframes ticker-scroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* ===== 资讯卡片网格 ===== */
.news-list-section { padding: 84px 0; }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.news-card {
    background: var(--bg-light); border-radius: var(--radius); overflow: hidden;
    box-shadow: var(--shadow); border: 1px solid var(--border);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    display: flex; flex-direction: column;
}
.news-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.news-card .card-img { position: relative; height: 210px; overflow: hidden; flex-shrink: 0; }
.news-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.news-card:hover .card-img img { transform: scale(1.06); }
.news-card .card-img::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 55%, rgba(0, 0, 0, 0.35)); }
.card-badge {
    position: absolute; top: 14px; left: 14px; z-index: 2;
    display: inline-block; padding: 3px 12px; border-radius: 20px;
    font-size: 12px; font-weight: 700; color: #fff;
    background: var(--primary); box-shadow: 0 4px 12px rgba(230, 57, 70, 0.4);
    backdrop-filter: blur(4px);
}
.card-body { padding: 20px 22px 22px; display: flex; flex-direction: column; flex: 1; }
.card-body h3 { font-size: 16.5px; font-weight: 700; line-height: 1.5; margin-bottom: 12px; color: var(--text); transition: color 0.3s; }
.news-card:hover .card-body h3 { color: var(--primary); }
.card-meta { display: flex; align-items: center; justify-content: space-between; color: var(--text-muted); font-size: 13px; margin-top: auto; }
.card-meta span { display: inline-flex; align-items: center; gap: 6px; }
.card-meta i { font-size: 13px; }

/* ===== 热门榜单 ===== */
.hot-section { padding: 84px 0; background: var(--bg-light); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.hot-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.hot-list { display: flex; flex-direction: column; gap: 18px; }
.hot-item {
    display: flex; align-items: center; gap: 20px; padding: 18px 20px;
    border-radius: var(--radius); border: 1px solid var(--border);
    background: var(--bg); transition: var(--transition);
}
.hot-item:hover { background: #fff; border-color: rgba(230, 57, 70, 0.25); box-shadow: var(--shadow-md); transform: translateX(6px); }
.hot-rank {
    width: 46px; height: 46px; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    font-size: 17px; font-weight: 800; border-radius: 50%;
    background: var(--secondary); color: var(--accent); font-family: 'SF Mono', monospace;
}
.hot-item:nth-child(1) .hot-rank { background: linear-gradient(135deg, #E6A400, #F7B733); color: #1B2440; }
.hot-item:nth-child(2) .hot-rank { background: linear-gradient(135deg, #7A8A9A, #A0B0C0); color: #1B2440; }
.hot-item:nth-child(3) .hot-rank { background: linear-gradient(135deg, #B87333, #D4A574); color: #1B2440; }
.hot-info { flex: 1; min-width: 0; }
.hot-info h4 { font-size: 15px; font-weight: 600; line-height: 1.5; margin-bottom: 4px; color: var(--text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.hot-meta { display: flex; gap: 10px; align-items: center; }
.hot-meta .tag { font-size: 12px; color: var(--primary); background: var(--primary-light); padding: 1px 8px; border-radius: 4px; font-weight: 500; }
.hot-meta .hot-level { font-size: 12px; color: var(--accent); font-weight: 600; }
.hot-side { display: flex; flex-direction: column; gap: 20px; }
.hot-side-card {
    border-radius: var(--radius); padding: 28px 30px;
    background: linear-gradient(135deg, var(--secondary), var(--secondary-2));
    color: #fff; position: relative; overflow: hidden;
}
.hot-side-card::before { content: ''; position: absolute; top: -40px; right: -40px; width: 160px; height: 160px; border-radius: 50%; background: rgba(230, 57, 70, 0.3); }
.hot-side-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; position: relative; z-index: 1; }
.hot-side-card p { font-size: 14px; color: rgba(255, 255, 255, 0.8); margin-bottom: 16px; position: relative; z-index: 1; }
.hot-side-card ul { position: relative; z-index: 1; }
.hot-side-card li { padding: 6px 0; font-size: 13.5px; color: rgba(255, 255, 255, 0.85); display: flex; gap: 8px; align-items: center; }
.hot-side-card li i { color: var(--accent); font-size: 12px; }

/* ===== 数据统计 ===== */
.stats-section { padding: 64px 0; background: var(--secondary); color: #fff; position: relative; overflow: hidden; }
.stats-section::before { content: ''; position: absolute; top: -80px; left: 20%; width: 300px; height: 300px; background: radial-gradient(circle, rgba(247, 183, 51, 0.12), transparent 70%); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; position: relative; z-index: 1; text-align: center; }
.stat-item .stat-num { font-size: 42px; font-weight: 800; color: var(--accent); line-height: 1.2; letter-spacing: -1px; }
.stat-item .stat-label { font-size: 14px; color: rgba(255, 255, 255, 0.75); margin-top: 8px; }

/* ===== FAQ ===== */
.faq-section { padding: 84px 0; }
.faq-list { max-width: 860px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.faq-item {
    border-radius: var(--radius); border: 1px solid var(--border);
    background: var(--bg-light); overflow: hidden; transition: var(--transition);
}
.faq-item:hover { border-color: rgba(230, 57, 70, 0.3); box-shadow: var(--shadow); }
.faq-item details { padding: 0 24px; }
.faq-item summary {
    display: flex; justify-content: space-between; align-items: center; cursor: pointer;
    padding: 20px 0; font-size: 15.5px; font-weight: 600; color: var(--text);
    list-style: none; user-select: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
    content: '+'; font-size: 24px; font-weight: 400; color: var(--primary);
    transition: transform 0.3s ease; flex-shrink: 0; margin-left: 16px;
}
.faq-item details[open] summary::after { transform: rotate(45deg); }
.faq-item .faq-answer {
    padding: 0 0 20px; color: var(--text-light); font-size: 14px; line-height: 1.85;
    border-top: 1px dashed var(--border); padding-top: 14px;
}

/* ===== CTA ===== */
.cta-section { padding: 80px 0; position: relative; overflow: hidden; }
.cta-box {
    border-radius: var(--radius-lg); padding: 64px 56px;
    background: linear-gradient(120deg, #1A2332, #2A3B56);
    color: #fff; position: relative; overflow: hidden;
    display: flex; align-items: center; justify-content: space-between; gap: 40px;
    flex-wrap: wrap;
}
.cta-box::before { content: ''; position: absolute; top: -60px; right: -60px; width: 260px; height: 260px; border-radius: 50%; background: rgba(230, 57, 70, 0.35); }
.cta-box::after { content: ''; position: absolute; bottom: -80px; left: 30%; width: 200px; height: 200px; border-radius: 50%; background: rgba(247, 183, 51, 0.12); }
.cta-content { position: relative; z-index: 1; max-width: 640px; }
.cta-content h2 { font-size: 28px; font-weight: 800; margin-bottom: 10px; }
.cta-content p { font-size: 15px; color: rgba(255, 255, 255, 0.8); line-height: 1.7; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; position: relative; z-index: 1; }

/* ===== Footer ===== */
.site-footer { background: var(--bg-dark); color: rgba(255, 255, 255, 0.7); padding: 60px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 48px; padding-bottom: 32px; }
.footer-brand .logo { margin-bottom: 14px; }
.footer-brand .logo-text { color: #fff; }
.footer-brand p { font-size: 13.5px; line-height: 1.8; max-width: 320px; margin-top: 12px; }
.footer-col h4 { font-size: 14px; font-weight: 700; letter-spacing: 1px; color: #fff; margin-bottom: 18px; text-transform: uppercase; }
.footer-col a {
    display: block; font-size: 13.5px; color: rgba(255, 255, 255, 0.6);
    padding: 6px 0; transition: color 0.3s, padding-left 0.3s;
}
.footer-col a:hover { color: var(--primary); padding-left: 6px; }
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: 20px 0; display: flex; justify-content: space-between; align-items: center;
    flex-wrap: wrap; gap: 8px; font-size: 13px; color: rgba(255, 255, 255, 0.4);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .news-grid { grid-template-columns: repeat(2, 1fr); }
    .intro-grid { grid-template-columns: 1fr; gap: 40px; }
    .hot-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    .page-hero h1 { font-size: 38px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 28px; }
}

@media (max-width: 768px) {
    .header-inner { height: 64px; }
    .main-nav {
        display: none; position: absolute; top: 100%; left: 0; right: 0;
        flex-direction: column; gap: 0; background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(24px); border-bottom: 1px solid var(--border);
        padding: 12px 24px 20px; box-shadow: var(--shadow-lg);
    }
    .main-nav.open { display: flex; }
    .nav-link { padding: 12px 0; font-size: 16px; border-bottom: 1px solid var(--border); width: 100%; }
    .nav-link:last-child { border-bottom: none; }
    .nav-link::after { display: none; }
    .header-actions .btn-sm { display: none; }
    .nav-toggle { display: block; }
    .page-hero { padding: 130px 0 60px; }
    .page-hero h1 { font-size: 30px; }
    .section-head h2 { font-size: 24px; }
    .section-pad, .news-list-section, .hot-section, .faq-section, .intro-section { padding: 56px 0; }
    .news-grid { grid-template-columns: 1fr; gap: 20px; }
    .intro-features { grid-template-columns: 1fr; }
    .hot-item { flex-wrap: wrap; gap: 12px; }
    .hot-info h4 { white-space: normal; }
    .cta-box { padding: 40px 26px; }
    .cta-actions { width: 100%; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
    .stat-item .stat-num { font-size: 34px; }
}

@media (max-width: 520px) {
    .container { padding: 0 16px; }
    .logo-text { font-size: 16px; }
    .page-hero h1 { font-size: 26px; }
    .page-hero .subtitle { font-size: 14.5px; }
    .hero-tags { gap: 8px; }
    .hero-tag { font-size: 12px; padding: 4px 10px; }
    .news-card .card-img { height: 180px; }
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
    .stat-item .stat-num { font-size: 28px; }
    .section-head { flex-direction: column; align-items: flex-start; gap: 8px; }
    .ticker-inner { flex-wrap: wrap; }
    .ticker-stack { display: none; }
}

/* roulang page: article */
/* ============ 设计变量 ============ */
:root {
  --primary: #1e5dff;
  --primary-dark: #1243c8;
  --primary-light: #eaefff;
  --accent: #f7b500;
  --accent-soft: #fff6dd;
  --dark: #0a1628;
  --ink: #1e293b;
  --text: #334155;
  --text-soft: #64748b;
  --text-faint: #94a3b8;
  --border: #e2e8f0;
  --bg: #f5f7fb;
  --white: #ffffff;
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow-xs: 0 1px 3px rgba(15, 23, 42, .06);
  --shadow-sm: 0 2px 10px rgba(15, 23, 42, .06);
  --shadow: 0 10px 32px rgba(15, 23, 42, .09);
  --shadow-lg: 0 20px 56px rgba(15, 23, 42, .14);
  --container: 1200px;
  --header-h: 72px;
  --radius-full: 999px;
  --transition: .25s cubic-bezier(.4,0,.2,1);
}

/* ============ 基础 Reset ============ */
*, *::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, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
button { font: inherit; border: none; background: none; cursor: pointer; }
input, textarea { font: inherit; }
ul, ol { list-style: none; }

/* ============ 容器 / 通用布局 ============ */
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.mt-0 { margin-top: 0; }
.img-cover { object-fit: cover; width: 100%; height: 100%; }

/* ============ 导航 ============ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10000;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(255,255,255,.72);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid rgba(255,255,255,.55);
  box-shadow: 0 4px 30px rgba(15,23,42,.07);
  transition: background .4s, box-shadow .4s, border-color .4s;
}
.site-header.scrolled {
  background: rgba(255,255,255,.93);
  box-shadow: 0 6px 40px rgba(15,23,42,.11);
  border-bottom-color: rgba(226,232,240,.8);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; width: 100%; }
.logo { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-badge {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-weight: 800;
  font-size: 15px;
  letter-spacing: .5px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 14px rgba(30,93,255,.35);
}
.logo-text {
  font-size: 19px;
  font-weight: 700;
  color: var(--dark);
  line-height: 1.2;
  letter-spacing: .3px;
  white-space: nowrap;
}
.logo-text small {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: var(--primary);
  letter-spacing: 2px;
  line-height: 1.2;
}
.main-nav { display: flex; align-items: center; gap: 6px; }
.nav-link {
  display: inline-block;
  padding: 9px 20px;
  border-radius: var(--radius-full);
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  transition: all var(--transition);
  line-height: 1.4;
}
.nav-link:hover { color: var(--primary); background: var(--primary-light); }
.nav-link.active { color: var(--primary-dark); background: var(--primary-light); font-weight: 600; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border-radius: var(--radius-full); font-weight: 600; line-height: 1.2; transition: all var(--transition); }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; padding: 12px 26px; font-size: 15px; box-shadow: 0 4px 16px rgba(30,93,255,.3); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(30,93,255,.4); color: #fff; }
.btn-primary:active { transform: translateY(0); box-shadow: 0 2px 8px rgba(30,93,255,.3); }
.btn-sm { padding: 9px 18px; font-size: 14px; }
.btn-outline { border: 1.5px solid var(--border); background: transparent; color: var(--text); padding: 10px 24px; font-size: 14px; }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); }
.nav-toggle { display: none; width: 42px; height: 42px; border-radius: 12px; background: var(--primary-light); color: var(--primary-dark); font-size: 20px; align-items: center; justify-content: center; transition: background var(--transition); }

/* ============ 文章 Banner ============ */
.article-banner {
  position: relative;
  padding: 150px 0 70px;
  background: linear-gradient(135deg, #0a1628, #12294d);
  overflow: hidden;
  isolation: isolate;
}
.banner-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: .38;
  z-index: -2;
}
.banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(10,22,40,.88), rgba(10,22,40,.45) 55%, rgba(30,93,255,.30));
  z-index: -1;
}
.banner-content { position: relative; z-index: 2; max-width: 880px; }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 14px; color: rgba(255,255,255,.7); margin-bottom: 18px; }
.breadcrumb a { color: rgba(255,255,255,.9); transition: color .2s; }
.breadcrumb a:hover { color: var(--accent); }
.banner-title {
  font-size: clamp(30px, 4.2vw, 46px);
  line-height: 1.3;
  font-weight: 800;
  color: #fff;
  margin-bottom: 18px;
  letter-spacing: .5px;
  text-shadow: 0 2px 20px rgba(0,0,0,.2);
}
.banner-meta { display: flex; flex-wrap: wrap; gap: 16px; color: rgba(255,255,255,.85); font-size: 14px; }
.banner-meta .meta-item { display: inline-flex; align-items: center; gap: 6px; padding: 5px 14px; background: rgba(255,255,255,.12); border-radius: var(--radius-full); backdrop-filter: blur(4px); border: 1px solid rgba(255,255,255,.15); }

/* ============ 主体两栏布局 ============ */
.article-main { padding: 56px 0 70px; }
.article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 330px; gap: 44px; align-items: start; }

/* ============ 文章卡片 ============ */
.article-card {
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(226,232,240,.7);
  overflow: hidden;
}
.article-body { padding: 46px 52px; }
.article-body > * + * { margin-top: 1.5em; }
.article-body h1, .article-body h2 { color: var(--dark); font-weight: 800; line-height: 1.35; }
.article-body h1 { font-size: 1.5em; }
.article-body h2 { font-size: 1.28em; padding-bottom: 10px; border-bottom: 2px solid var(--primary-light); }
.article-body h3 { font-size: 1.1em; color: var(--ink); font-weight: 700; }
.article-body p { color: var(--text); line-height: 1.9; }
.article-body img { border-radius: var(--radius); margin: 1.6em 0; box-shadow: var(--shadow-sm); }
.article-body blockquote { border-left: 4px solid var(--primary); background: var(--primary-light); padding: 18px 24px; border-radius: 0 var(--radius) var(--radius) 0; color: var(--ink); font-style: normal; font-weight: 500; margin: 2em 0; }
.article-body ul { list-style: disc; padding-left: 1.4em; }
.article-body ol { list-style: decimal; padding-left: 1.4em; }
.article-body li { margin-bottom: .6em; line-height: 1.8; }
.article-body a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
.article-body a:hover { color: var(--primary-dark); }
.article-body .wp-block-image { margin: 2em 0; }
.article-body .wp-block-image img { width: 100%; border-radius: var(--radius); }
.article-body code { background: #f1f5f9; padding: 2px 8px; border-radius: 4px; font-size: .92em; color: #e11d48; }
.article-body pre { background: var(--dark); color: #e2e8f0; padding: 24px; border-radius: var(--radius); overflow-x: auto; font-size: 14px; line-height: 1.7; }
.article-body pre code { background: none; color: inherit; padding: 0; font-size: inherit; }
.article-body table { width: 100%; border-collapse: collapse; margin: 2em 0; font-size: 14px; }
.article-body th, .article-body td { border: 1px solid var(--border); padding: 12px 16px; text-align: left; }
.article-body th { background: #f8fafc; font-weight: 600; color: var(--dark); }

/* ============ 文章标签区 ============ */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 34px;
  padding-top: 22px;
  border-top: 1px solid var(--border);
}
.tag-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  background: var(--primary-light);
  color: var(--primary-dark);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 500;
  cursor: default;
}

/* ============ 内容未找到 ============ */
.not-found-box {
  padding: 80px 20px;
  text-align: center;
}
.not-found-box i { font-size: 52px; color: var(--text-faint); margin-bottom: 18px; }
.not-found-box h2 { font-size: 28px; color: var(--dark); margin-bottom: 12px; }
.not-found-box p { color: var(--text-soft); margin-bottom: 26px; }

/* ============ 侧边栏 ============ */
.article-sidebar { display: flex; flex-direction: column; gap: 28px; }
.sidebar-widget {
  background: #fff;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(226,232,240,.7);
  box-shadow: var(--shadow-sm);
  padding: 28px 26px;
}
.sidebar-widget:first-child { margin-top: 0; }
.widget-title { font-size: 17px; font-weight: 700; color: var(--dark); margin-bottom: 18px; padding-bottom: 12px; position: relative; }
.widget-title::after { content: ""; position: absolute; left: 0; bottom: 0; width: 32px; height: 3px; border-radius: 3px; background: var(--primary); }
.widget-title i { color: var(--primary); margin-right: 8px; }
.widget-list { display: flex; flex-direction: column; gap: 6px; }
.widget-list a { display: flex; align-items: center; gap: 10px; padding: 9px 14px; border-radius: var(--radius-sm); font-size: 14px; transition: all var(--transition); color: var(--text); }
.widget-list a:hover { background: var(--primary-light); color: var(--primary-dark); transform: translateX(4px); }
.widget-list a i { font-size: 12px; color: var(--primary); }
.sidebar-mini-card { background: var(--primary-light); border-radius: var(--radius); padding: 18px 20px; margin-bottom: 12px; }
.sidebar-mini-card p { font-size: 13.5px; color: var(--text); }
.sidebar-mini-card strong { display: block; font-size: 18px; color: var(--primary-dark); margin-bottom: 4px; }
.sidebar-cta { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); border-radius: var(--radius); color: #fff; padding: 26px 24px; text-align: center; }
.sidebar-cta h4 { font-size: 17px; margin-bottom: 8px; }
.sidebar-cta p { font-size: 13px; opacity: .85; margin-bottom: 16px; }
.sidebar-cta a { display: inline-flex; width: 100%; justify-content: center; }

/* ============ 相关推荐 ============ */
.related-section { padding: 70px 0 60px; background: #fff; border-top: 1px solid var(--border); }
.section-head { text-align: center; margin-bottom: 44px; }
.section-head .section-tag { display: inline-block; padding: 6px 16px; background: var(--primary-light); color: var(--primary-dark); border-radius: var(--radius-full); font-size: 13px; font-weight: 600; margin-bottom: 12px; }
.section-head h2 { font-size: clamp(26px, 3vw, 36px); font-weight: 800; color: var(--dark); margin-bottom: 10px; }
.section-head p { color: var(--text-soft); max-width: 600px; margin: 0 auto; font-size: 15px; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.related-card {
  display: flex;
  flex-direction: column;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  height: 100%;
}
.related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: rgba(30,93,255,.3); }
.related-cover { position: relative; height: 180px; overflow: hidden; }
.related-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .45s ease; }
.related-card:hover .related-cover img { transform: scale(1.07); }
.related-cover::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 50%, rgba(10,22,40,.25)); }
.related-info { padding: 20px 22px 22px; display: flex; flex-direction: column; flex: 1; }
.related-cat { display: inline-block; font-size: 12px; font-weight: 600; color: var(--primary); background: var(--primary-light); padding: 4px 12px; border-radius: var(--radius-full); margin-bottom: 10px; align-self: flex-start; }
.related-info h3 { font-size: 16px; line-height: 1.5; font-weight: 700; color: var(--dark); margin-bottom: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.related-info p { font-size: 13.5px; color: var(--text-soft); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 14px; flex: 1; }
.related-date { font-size: 12.5px; color: var(--text-faint); display: flex; align-items: center; gap: 6px; }

/* ============ FAQ ============ */
.faq-section { padding: 70px 0; background: var(--bg); }
.faq-grid { max-width: 850px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.faq-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: box-shadow var(--transition), border-color var(--transition); }
.faq-item:hover { border-color: rgba(30,93,255,.35); box-shadow: var(--shadow-sm); }
.faq-question { width: 100%; display: flex; justify-content: space-between; align-items: center; text-align: left; padding: 20px 26px; background: none; color: var(--dark); font-size: 16px; font-weight: 600; gap: 16px; transition: color var(--transition); }
.faq-question:hover { color: var(--primary); }
.faq-question i { font-size: 14px; color: var(--primary); transition: transform .3s; }
.faq-item.open .faq-question i { transform: rotate(180deg); }
.faq-answer { display: none; padding: 0 26px 22px; color: var(--text); font-size: 14.5px; line-height: 1.8; }
.faq-item.open .faq-answer { display: block; }

/* ============ CTA ============ */
.cta-section { padding: 70px 0; position: relative; overflow: hidden; background: linear-gradient(135deg, #0f2a5c, #1e5dff); isolation: isolate; }
.cta-section::before { content: ""; position: absolute; inset: 0; background-image: url('/assets/images/backpic/back-2.png'); background-size: cover; background-position: center; opacity: .18; z-index: -1; }
.cta-inner { text-align: center; color: #fff; max-width: 680px; margin: 0 auto; }
.cta-inner h2 { font-size: clamp(28px, 3.5vw, 40px); font-weight: 800; margin-bottom: 14px; }
.cta-inner p { font-size: 16px; opacity: .9; margin-bottom: 28px; }
.cta-btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn-white { background: #fff; color: var(--primary); padding: 13px 32px; font-size: 15px; box-shadow: 0 4px 20px rgba(0,0,0,.15); }
.btn-white:hover { color: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(0,0,0,.25); }
.btn-ghost { border: 2px solid rgba(255,255,255,.55); color: #fff; padding: 11px 30px; font-size: 15px; backdrop-filter: blur(2px); background: rgba(255,255,255,.08); }
.btn-ghost:hover { border-color: #fff; background: rgba(255,255,255,.18); transform: translateY(-2px); }

/* ============ 页脚 ============ */
.site-footer { background: var(--dark); color: rgba(255,255,255,.75); padding: 64px 0 0; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 44px; padding-bottom: 44px; border-bottom: 1px solid rgba(255,255,255,.1); }
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand .logo-text { color: #fff; }
.footer-brand .logo-text small { color: var(--accent); }
.footer-brand p { font-size: 14px; line-height: 1.8; max-width: 320px; }
.footer-col h4 { color: #fff; font-size: 15px; font-weight: 600; margin-bottom: 16px; position: relative; }
.footer-col h4::after { content: ""; position: absolute; left: 0; bottom: -6px; width: 24px; height: 2px; background: var(--accent); }
.footer-col a { display: block; padding: 5px 0; font-size: 14px; color: rgba(255,255,255,.65); transition: color .25s, padding-left .25s; }
.footer-col a:hover { color: var(--accent); padding-left: 5px; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 10px; padding: 22px 0; font-size: 13px; color: rgba(255,255,255,.45); }

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-sidebar { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  :root { --header-h: 64px; }
  .container { padding: 0 18px; }
  .main-nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: rgba(255,255,255,.98);
    backdrop-filter: blur(18px);
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }
  .main-nav.open { display: flex; }
  .nav-link { padding: 13px 18px; border-radius: var(--radius); font-size: 15px; }
  .nav-toggle { display: inline-flex; }
  .header-actions .btn-primary { display: none; }
  .article-banner { padding: 120px 0 48px; }
  .article-body { padding: 28px 20px; }
  .related-grid { grid-template-columns: 1fr; }
  .article-sidebar { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .article-layout { gap: 28px; }
  .cta-btns { flex-direction: column; align-items: center; }
  .cta-btns .btn { width: 100%; max-width: 280px; }
}
@media (max-width: 520px) {
  .container { padding: 0 14px; }
  .header-inner { gap: 12px; }
  .logo-badge { width: 36px; height: 36px; font-size: 13px; border-radius: 10px; }
  .logo-text { font-size: 16px; }
  .logo-text small { font-size: 10px; letter-spacing: 1.5px; }
  .banner-title { font-size: 26px; }
  .article-main { padding: 40px 0 44px; }
  .related-section { padding: 50px 0; }
  .faq-section { padding: 50px 0; }
  .faq-question { padding: 16px 18px; font-size: 14.5px; }
  .faq-answer { padding: 0 18px 18px; font-size: 14px; }
  .footer-bottom { flex-direction: column; justify-content: center; text-align: center; }
}

/* roulang page: category2 */
:root {
  --primary: #e63946;
  --primary-dark: #c1121f;
  --primary-light: #ff6b6b;
  --accent: #457b9d;
  --accent-light: #a8dadc;
  --dark-bg: #0d1b2a;
  --dark-card: #1b263b;
  --light-bg: #f8f9fa;
  --white: #ffffff;
  --text-main: #1d3557;
  --text-body: #4a5568;
  --text-muted: #718096;
  --border: #e2e8f0;
  --radius: 14px;
  --radius-sm: 8px;
  --radius-lg: 22px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow: 0 6px 24px rgba(0,0,0,0.09);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.14);
  --spacing-section: 96px;
  --container-w: 1240px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --header-h: 76px;
}

*, *::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, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  background: var(--light-bg);
  color: var(--text-body);
  overflow-x: hidden;
}

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

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

ul, ol {
  list-style: none;
}

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

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

/* ===== Header 导航 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-h);
  z-index: 1000;
  background: rgba(13, 27, 42, 0.5);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  transition: var(--transition);
}

.site-header.scrolled {
  background: rgba(13, 27, 42, 0.92);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
}

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

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

.logo-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 0.5px;
  width: 46px;
  height: 46px;
  border-radius: 12px;
  box-shadow: 0 4px 14px rgba(230, 57, 70, 0.35);
}

.logo-text {
  color: #fff;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 1px;
  line-height: 1.2;
}

.logo-text small {
  display: block;
  font-size: 11px;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 2px;
}

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

.nav-link {
  color: rgba(255, 255, 255, 0.85);
  font-size: 15px;
  font-weight: 500;
  padding: 10px 18px;
  border-radius: 8px;
  position: relative;
  transition: var(--transition);
}

.nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
}

.nav-link.active {
  color: #fff;
  font-weight: 600;
}

.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  width: 22px;
  height: 3px;
  background: var(--primary-light);
  border-radius: 3px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  border-radius: 10px;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
  padding: 12px 26px;
  font-size: 15px;
  line-height: 1.4;
}

.btn-sm {
  padding: 8px 18px;
  font-size: 14px;
  border-radius: 8px;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 16px rgba(230, 57, 70, 0.3);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(230, 57, 70, 0.4);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(230, 57, 70, 0.25);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.6);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: #fff;
  transform: translateY(-2px);
}

.btn-light {
  background: #fff;
  color: var(--primary);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.btn-light:hover {
  background: #f8f9fa;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  cursor: pointer;
  border-radius: 8px;
  transition: var(--transition);
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: var(--transition);
}

.nav-toggle:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* ===== Hero 内页横幅 ===== */
.page-banner {
  position: relative;
  padding: calc(var(--header-h) + 80px) 0 80px;
  background: linear-gradient(135deg, rgba(13, 27, 42, 0.92), rgba(27, 38, 59, 0.85)), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  color: #fff;
  overflow: hidden;
}

.page-banner::before {
  content: "";
  position: absolute;
  top: -60%;
  right: -20%;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(230, 57, 70, 0.25), transparent 70%);
  pointer-events: none;
}

.page-banner::after {
  content: "";
  position: absolute;
  bottom: -40%;
  left: -10%;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, rgba(69, 123, 157, 0.25), transparent 70%);
  pointer-events: none;
}

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

.banner-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(230, 57, 70, 0.25);
  border: 1px solid rgba(230, 57, 70, 0.5);
  border-radius: 30px;
  font-size: 13px;
  font-weight: 600;
  color: #ffb4b4;
  margin-bottom: 18px;
  letter-spacing: 1px;
}

.banner-tag .dot {
  width: 6px;
  height: 6px;
  background: var(--primary-light);
  border-radius: 50%;
  animation: pulse 1.6s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.75); }
}

.page-banner h1 {
  font-size: clamp(30px, 4.5vw, 52px);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 14px;
  letter-spacing: 1px;
}

.page-banner h1 span {
  color: var(--primary-light);
}

.page-banner .lead {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.85);
  max-width: 640px;
  margin-bottom: 0;
  line-height: 1.8;
}

.banner-meta {
  display: flex;
  gap: 24px;
  margin-top: 30px;
  flex-wrap: wrap;
}

.banner-meta-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.85);
}

.banner-meta-item strong {
  font-size: 18px;
  color: #fff;
}

.banner-meta-item i {
  font-size: 16px;
  color: var(--primary-light);
  width: 20px;
  text-align: center;
}

/* ===== 面包屑 ===== */
.breadcrumb-wrap {
  background: #fff;
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
}

.breadcrumb {
  display: flex;
  align-items: center;
  font-size: 14px;
  gap: 6px;
  color: var(--text-muted);
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--accent);
  font-weight: 500;
}

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

.breadcrumb .sep {
  color: #cbd5e0;
}

.breadcrumb .current {
  color: var(--text-main);
  font-weight: 600;
}

/* ===== 主导航分类卡片 ===== */
.category-section {
  padding: var(--spacing-section) 0;
}

.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 44px;
}

.section-header h2 {
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.3;
  position: relative;
}

.section-header h2::before {
  content: "";
  display: inline-block;
  width: 5px;
  height: 28px;
  background: var(--primary);
  border-radius: 4px;
  margin-right: 12px;
  vertical-align: -3px;
}

.section-header .desc {
  color: var(--text-muted);
  font-size: 15px;
  max-width: 420px;
}

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

.category-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 28px 24px;
  border: 1px solid var(--border);
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  opacity: 0;
  transition: var(--transition);
}

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

.category-card:hover::before {
  opacity: 1;
}

.category-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 18px;
  color: #fff;
}

.category-icon.icon-red {
  background: linear-gradient(135deg, #e63946, #ff6b6b);
}

.category-icon.icon-blue {
  background: linear-gradient(135deg, #457b9d, #64b5f6);
}

.category-icon.icon-green {
  background: linear-gradient(135deg, #2d6a4f, #52b788);
}

.category-icon.icon-orange {
  background: linear-gradient(135deg, #e76f51, #f4a261);
}

.category-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}

.category-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
}

.category-card .tag-group {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

/* 标签 */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  background: var(--light-bg);
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
  white-space: nowrap;
}

.tag:hover {
  background: rgba(230, 57, 70, 0.08);
  border-color: rgba(230, 57, 70, 0.3);
  color: var(--primary);
}

/* ===== 内容列表板块 ===== */
.content-section {
  padding: var(--spacing-section) 0;
  background: #fff;
}

.content-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.content-card {
  background: #fff;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

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

.content-card .card-media {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

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

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

.card-label {
  position: absolute;
  top: 14px;
  left: 14px;
  padding: 5px 14px;
  background: rgba(230, 57, 70, 0.92);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  border-radius: 20px;
  z-index: 2;
  backdrop-filter: blur(4px);
}

.card-label.blue {
  background: rgba(69, 123, 157, 0.92);
}

.card-label.green {
  background: rgba(45, 106, 79, 0.92);
}

.card-label.orange {
  background: rgba(231, 111, 81, 0.92);
}

.card-label.purple {
  background: rgba(107, 78, 153, 0.92);
}

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

.card-body h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.5;
  margin-bottom: 10px;
  transition: var(--transition);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.content-card:hover .card-body h3 {
  color: var(--primary);
}

.card-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  color: var(--text-muted);
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.card-meta i {
  font-size: 14px;
  margin-right: 4px;
  color: var(--accent);
}

.card-meta .read-more {
  margin-left: auto;
  color: var(--primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
}

.card-meta .read-more:hover {
  gap: 8px;
}

/* ===== 排行榜 ===== */
.ranking-section {
  padding: var(--spacing-section) 0;
  background: var(--dark-bg);
  color: #fff;
  position: relative;
  overflow: hidden;
}

.ranking-section::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(230, 57, 70, 0.2), transparent 70%);
}

.ranking-section .section-header h2 {
  color: #fff;
}

.ranking-section .section-header .desc {
  color: rgba(255, 255, 255, 0.6);
}

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

.ranking-card {
  background: var(--dark-card);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  padding: 28px;
  transition: var(--transition);
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.ranking-card:hover {
  border-color: rgba(230, 57, 70, 0.5);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}

.ranking-num {
  font-size: 32px;
  font-weight: 900;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(255, 255, 255, 0.3);
  line-height: 1;
  min-width: 46px;
  text-align: center;
  font-style: italic;
}

.ranking-card:nth-child(1) .ranking-num {
  -webkit-text-stroke: 1.5px var(--primary-light);
}

.ranking-card:nth-child(2) .ranking-num {
  -webkit-text-stroke: 1.5px #ffb703;
}

.ranking-card:nth-child(3) .ranking-num {
  -webkit-text-stroke: 1.5px var(--accent-light);
}

.ranking-info {
  flex: 1;
}

.ranking-info h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
  color: #fff;
}

.ranking-info p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.6;
  margin-bottom: 12px;
}

.ranking-hot {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 600;
}

.ranking-hot .hot-bar {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary-light);
  animation: pulse 1.6s infinite;
}

/* ===== 热门榜单 ===== */
.hot-section {
  padding: var(--spacing-section) 0;
  background: var(--light-bg);
}

.hot-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 860px;
}

.hot-item {
  display: flex;
  align-items: center;
  gap: 18px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 22px;
  transition: var(--transition);
}

.hot-item:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow);
  border-color: rgba(230, 57, 70, 0.3);
}

.hot-item .index {
  font-size: 20px;
  font-weight: 900;
  color: var(--primary);
  min-width: 32px;
  font-style: italic;
}

.hot-item .content {
  flex: 1;
}

.hot-item .content h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 4px;
  transition: var(--transition);
}

.hot-item:hover .content h4 {
  color: var(--primary);
}

.hot-item .content p {
  font-size: 13px;
  color: var(--text-muted);
}

.hot-item .hot-meta {
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  gap: 14px;
  align-items: center;
  white-space: nowrap;
}

.hot-meta span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.hot-meta .icon-fire {
  color: var(--primary);
}

/* ===== 图文展示板块 ===== */
.showcase-section {
  padding: var(--spacing-section) 0;
  background: #fff;
}

.feature-tabs {
  display: flex;
  gap: 12px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.feature-tab {
  padding: 10px 22px;
  border-radius: 30px;
  background: var(--light-bg);
  border: 1px solid var(--border);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  cursor: pointer;
  transition: var(--transition);
}

.feature-tab:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(230, 57, 70, 0.05);
}

.feature-tab.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 4px 12px rgba(230, 57, 70, 0.3);
}

.feature-card {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 40px;
  align-items: center;
}

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

.feature-image img {
  width: 100%;
  height: 100%;
  min-height: 320px;
  object-fit: cover;
}

.feature-image .badge-overlay {
  position: absolute;
  bottom: 20px;
  left: 20px;
  background: rgba(13, 27, 42, 0.9);
  backdrop-filter: blur(8px);
  padding: 12px 20px;
  border-radius: 12px;
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.feature-content {
  padding: 20px 0;
}

.feature-content .label {
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.feature-content .label::before {
  content: "";
  width: 32px;
  height: 3px;
  background: var(--primary);
  border-radius: 3px;
}

.feature-content h3 {
  font-size: clamp(22px, 2.5vw, 30px);
  color: var(--text-main);
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 16px;
}

.feature-content h3 span {
  color: var(--primary);
}

.feature-content p {
  color: var(--text-body);
  font-size: 15px;
  line-height: 1.9;
  margin-bottom: 18px;
}

.feature-list {
  margin-bottom: 28px;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  font-size: 15px;
  color: var(--text-body);
}

.feature-list li i {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: rgba(230, 57, 70, 0.1);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  flex-shrink: 0;
}

/* ===== FAQ ===== */
.faq-section {
  padding: var(--spacing-section) 0;
  background: var(--light-bg);
}

.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);
  padding: 24px 28px;
  transition: var(--transition);
}

.faq-item:hover {
  box-shadow: var(--shadow);
  border-color: rgba(230, 57, 70, 0.2);
}

.faq-item .faq-q {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
}

.faq-item .faq-q .num {
  width: 28px;
  height: 28px;
  background: var(--primary);
  border-radius: 8px;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}

.faq-item .faq-q .arrow {
  margin-left: auto;
  color: var(--text-muted);
  transition: var(--transition);
  font-size: 14px;
}

.faq-item .faq-a {
  display: none;
  padding-top: 14px;
  padding-left: 40px;
  font-size: 14px;
  color: var(--text-body);
  line-height: 1.8;
}

.faq-item.open .faq-a {
  display: block;
}

.faq-item.open .faq-q .arrow {
  transform: rotate(180deg);
  color: var(--primary);
}

/* ===== CTA ===== */
.cta-section {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  position: relative;
  overflow: hidden;
  color: #fff;
}

.cta-section::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -15%;
  width: 400px;
  height: 400px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
}

.cta-section::after {
  content: "";
  position: absolute;
  bottom: -60%;
  left: -10%;
  width: 300px;
  height: 300px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 50%;
}

.cta-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}

.cta-text h2 {
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 800;
  margin-bottom: 10px;
}

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

/* ===== Footer ===== */
.site-footer {
  background: var(--dark-bg);
  color: rgba(255, 255, 255, 0.7);
  padding: 70px 0 0;
}

.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 {
  font-size: 22px;
}

.footer-brand p {
  margin-top: 18px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.5);
  max-width: 340px;
}

.footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
  letter-spacing: 1px;
}

.footer-col a {
  display: block;
  padding: 6px 0;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
  transition: var(--transition);
}

.footer-col a:hover {
  color: var(--primary-light);
  transform: translateX(4px);
}

.footer-bottom {
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.35);
  flex-wrap: wrap;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  :root {
    --spacing-section: 72px;
  }
  .category-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .content-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .feature-card {
    gap: 28px;
  }
  .ranking-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  :root {
    --header-h: 64px;
    --spacing-section: 56px;
  }
  .container {
    padding: 0 16px;
  }
  .nav-toggle {
    display: flex;
  }
  .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--dark-bg);
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    transform: translateY(-120%);
    opacity: 0;
    transition: var(--transition);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(20px);
  }
  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
  }
  .main-nav .nav-link {
    padding: 14px 18px;
    border-radius: 10px;
  }
  .main-nav .nav-link.active::after {
    display: none;
  }
  .main-nav .nav-link.active {
    background: rgba(230, 57, 70, 0.15);
  }
  .header-actions .btn-sm {
    display: none;
  }
  .page-banner {
    padding-top: calc(var(--header-h) + 48px);
    padding-bottom: 48px;
  }
  .banner-meta {
    gap: 12px;
  }
  .banner-meta-item {
    padding: 8px 14px;
    font-size: 12px;
  }
  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 30px;
  }
  .section-header .desc {
    max-width: none;
  }
  .category-grid,
  .content-grid {
    grid-template-columns: 1fr;
  }
  .feature-card {
    grid-template-columns: 1fr;
  }
  .feature-image img {
    min-height: 220px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 6px;
  }
  .cta-inner {
    flex-direction: column;
    text-align: center;
  }
  .cta-text p {
    margin: 0 auto;
  }
  .feature-tabs {
    gap: 8px;
  }
  .feature-tab {
    padding: 8px 16px;
    font-size: 13px;
  }
}

@media (max-width: 520px) {
  .logo-text {
    font-size: 17px;
  }
  .logo-badge {
    width: 38px;
    height: 38px;
    font-size: 12px;
  }
  .ranking-card {
    flex-direction: column;
    padding: 20px;
  }
  .ranking-num {
    font-size: 26px;
  }
  .hot-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 16px;
  }
  .hot-meta {
    width: 100%;
    justify-content: space-between;
  }
  .faq-item {
    padding: 18px;
  }
  .faq-item .faq-q {
    font-size: 14px;
  }
  .faq-item .faq-a {
    padding-left: 0;
  }
}

/* ===== 工具类 ===== */
.text-primary { color: var(--primary); }
.mt-1 { margin-top: 10px; }
.mt-2 { margin-top: 20px; }
.mb-1 { margin-bottom: 10px; }
.mb-2 { margin-bottom: 20px; }
.mb-3 { margin-bottom: 32px; }
.hidden { display: none; }

.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: none;
}