/* roulang page: index */
/* ============ 设计变量 ============ */
:root {
  --primary: #1a56db;
  --primary-dark: #123ea8;
  --primary-light: #e8efff;
  --secondary: #14b8a6;
  --secondary-light: #e6fbf8;
  --accent: #f59e0b;
  --accent-light: #fef3e2;
  --dark: #0b1526;
  --dark-2: #101e36;
  --dark-3: #17284a;
  --bg: #f5f8fc;
  --bg-white: #ffffff;
  --text: #16213a;
  --text-muted: #52627e;
  --text-light: #8b9bb5;
  --border: #e4eaf3;
  --border-2: #d0daea;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 10px rgba(16, 34, 74, 0.05);
  --shadow-md: 0 8px 28px rgba(16, 34, 74, 0.08);
  --shadow-lg: 0 20px 48px rgba(16, 34, 74, 0.12);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --container: 1200px;
}

/* ============ 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, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px; line-height: 1.7; color: var(--text); background: var(--bg);
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; }
ul, ol { list-style: none; }
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 56px; }
.section-head .overline {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; font-weight: 600; letter-spacing: 0.12em;
  color: var(--primary); background: var(--primary-light);
  padding: 6px 16px; border-radius: 100px; margin-bottom: 16px;
}
.section-head .overline::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--primary); }
.section-head h2 { font-size: 36px; font-weight: 800; line-height: 1.3; letter-spacing: -0.02em; }
.section-head p { margin-top: 14px; color: var(--text-muted); font-size: 16px; }

/* ============ 按钮 ============ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 32px; border-radius: 100px; font-size: 15px; font-weight: 600;
  line-height: 1.2; transition: var(--transition); white-space: nowrap;
}
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 4px 16px rgba(26, 86, 219, 0.3); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(26, 86, 219, 0.38); }
.btn-primary:active { transform: translateY(0); }
.btn-outline { background: transparent; color: #fff; border: 1.5px solid rgba(255,255,255,0.6); }
.btn-outline:hover { border-color: #fff; background: rgba(255,255,255,0.12); transform: translateY(-2px); }
.btn-light { background: #fff; color: var(--primary); box-shadow: 0 4px 16px rgba(0,0,0,0.12); }
.btn-light:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.16); }
.btn-sm { padding: 9px 22px; font-size: 14px; }

/* ============ 徽章 / 标签 ============ */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 4px 14px; border-radius: 100px; font-size: 12px; font-weight: 600;
  background: var(--primary-light); color: var(--primary);
}
.badge-green { background: var(--secondary-light); color: #0d9488; }
.badge-orange { background: var(--accent-light); color: #c2760a; }
.badge-outline { background: transparent; border: 1px solid var(--border-2); color: var(--text-muted); }

/* ============ Header ============ */
.site-header { position: sticky; top: 0; z-index: 1000; }
.header-top { background: #fff; border-bottom: 1px solid var(--border); }
.header-top-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; gap: 24px; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 26px; font-weight: 800; letter-spacing: -0.03em; color: var(--dark); }
.logo-icon {
  width: 40px; height: 40px; border-radius: 12px; display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--primary), var(--secondary)); color: #fff; font-size: 20px;
  box-shadow: 0 4px 14px rgba(26, 86, 219, 0.26);
}
.header-search { flex: 0 1 360px; display: flex; align-items: center; background: var(--bg); border: 1px solid var(--border); border-radius: 100px; padding: 0 6px 0 18px; transition: var(--transition); }
.header-search:focus-within { border-color: var(--primary); box-shadow: 0 0 0 4px rgba(26, 86, 219, 0.1); background: #fff; }
.header-search input { flex: 1; border: none; background: transparent; padding: 10px 0; font-size: 14px; color: var(--text); outline: none; }
.header-search button { width: 36px; height: 36px; border-radius: 50%; display: flex; align-items: center; justify-content: center; background: var(--primary); color: #fff; line-height: 1; transition: var(--transition); }
.header-search button:hover { background: var(--primary-dark); }
.header-top-actions { display: flex; align-items: center; gap: 14px; }
.header-cta { display: inline-flex; align-items: center; gap: 8px; }
.menu-toggle { display: none; font-size: 22px; color: var(--dark); padding: 8px; border-radius: 8px; }
.menu-toggle:hover { background: var(--bg); }

.header-nav { background: var(--dark); border-bottom: 1px solid rgba(255,255,255,0.06); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 52px; }
.channel-nav { display: flex; align-items: center; gap: 4px; height: 100%; overflow-x: auto; scrollbar-width: none; }
.channel-nav::-webkit-scrollbar { display: none; }
.channel-nav a {
  display: inline-flex; align-items: center; gap: 6px; height: 100%; padding: 0 18px;
  color: rgba(255,255,255,0.72); font-size: 14px; font-weight: 500;
  position: relative; white-space: nowrap;
}
.channel-nav a:hover { color: #fff; background: rgba(255,255,255,0.05); }
.channel-nav a.active { color: #fff; }
.channel-nav a.active::after {
  content: ""; position: absolute; bottom: 0; left: 14px; right: 14px; height: 3px;
  background: linear-gradient(90deg, var(--secondary), var(--primary)); border-radius: 3px 3px 0 0;
}
.nav-more { display: flex; align-items: center; gap: 16px; color: rgba(255,255,255,0.55); font-size: 13px; }
.nav-date { display: inline-flex; align-items: center; gap: 6px; }
.nav-date i { color: var(--secondary); }

/* ============ Hero ============ */
.hero {
  position: relative; min-height: 640px; display: flex; align-items: center;
  background-image: linear-gradient(105deg, rgba(8, 18, 38, 0.94) 18%, rgba(8, 18, 38, 0.72) 55%, rgba(8, 18, 38, 0.45)),
    url('/assets/images/backpic/back-1.png');
  background-size: cover; background-position: center; color: #fff;
}
.hero-inner { padding: 110px 0; position: relative; z-index: 2; }
.hero .overline {
  display: inline-flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 600; letter-spacing: 0.14em;
  color: var(--secondary); margin-bottom: 22px; text-transform: uppercase;
}
.hero .overline::before { content: ""; width: 34px; height: 2px; background: var(--secondary); }
.hero h1 { font-size: 52px; font-weight: 900; line-height: 1.18; letter-spacing: -0.03em; max-width: 640px; margin-bottom: 20px; }
.hero h1 span { color: var(--secondary); }
.hero p { font-size: 17px; line-height: 1.85; color: rgba(255,255,255,0.78); max-width: 560px; margin-bottom: 34px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 54px; }
.hero-stats { display: flex; flex-wrap: wrap; gap: 40px; border-top: 1px solid rgba(255,255,255,0.14); padding-top: 34px; }
.hero-stats .stat b { font-size: 32px; font-weight: 800; color: #fff; display: block; line-height: 1.3; }
.hero-stats .stat b em { font-style: normal; color: var(--secondary); font-size: 18px; margin-left: 2px; }
.hero-stats .stat span { font-size: 13px; color: rgba(255,255,255,0.58); letter-spacing: 0.08em; }

/* ============ About / 平台介绍 ============ */
.about { background: var(--bg-white); }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }
.about-media { position: relative; }
.about-media img { border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); }
.about-media::before { content: ""; position: absolute; top: -16px; left: -16px; width: 120px; height: 120px; border-radius: var(--radius-lg); background: url('/assets/images/backpic/back-2.png') center/cover; opacity: 0.5; z-index: 0; }
.about-media .exp-card {
  position: absolute; bottom: -22px; right: -18px; background: #fff; border-radius: var(--radius-md);
  padding: 16px 22px; box-shadow: var(--shadow-lg); display: flex; align-items: center; gap: 14px;
}
.about-media .exp-card .exp-icon { width: 44px; height: 44px; border-radius: 12px; background: var(--secondary-light); color: var(--secondary); display: flex; align-items: center; justify-content: center; font-size: 20px; }
.about-media .exp-card b { font-size: 18px; font-weight: 700; display: block; line-height: 1.2; }
.about-media .exp-card span { font-size: 13px; color: var(--text-muted); }
.about-content h2 { font-size: 34px; font-weight: 800; line-height: 1.3; letter-spacing: -0.02em; margin-bottom: 18px; }
.about-content > p { color: var(--text-muted); font-size: 16px; line-height: 1.85; margin-bottom: 28px; }
.about-features { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; margin-bottom: 32px; }
.about-feature { display: flex; gap: 12px; align-items: flex-start; }
.about-feature i { width: 36px; height: 36px; border-radius: 10px; background: var(--primary-light); color: var(--primary); display: flex; align-items: center; justify-content: center; font-size: 14px; flex-shrink: 0; }
.about-feature b { font-size: 15px; font-weight: 600; display: block; }
.about-feature span { font-size: 13px; color: var(--text-muted); line-height: 1.6; }

/* ============ 分类卡片 ============ */
.categories { background: var(--bg); }
.cat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.cat-card {
  background: #fff; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm);
  border: 1px solid var(--border); transition: var(--transition); display: flex; flex-direction: column;
}
.cat-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: var(--border-2); }
.cat-card .cat-img { position: relative; height: 200px; overflow: hidden; }
.cat-card .cat-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.cat-card:hover .cat-img img { transform: scale(1.06); }
.cat-card .cat-img::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,0) 40%, rgba(8,16,34,0.5)); }
.cat-card .cat-icon {
  position: absolute; bottom: 16px; left: 20px; z-index: 2; width: 44px; height: 44px; border-radius: 12px;
  background: rgba(255,255,255,0.92); color: var(--primary); display: flex; align-items: center; justify-content: center;
  font-size: 18px; box-shadow: var(--shadow-sm);
}
.cat-card .cat-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.cat-card .cat-body h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.cat-card .cat-body p { font-size: 14px; color: var(--text-muted); line-height: 1.7; margin-bottom: 18px; flex: 1; }
.cat-card .cat-link { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 600; color: var(--primary); }
.cat-card .cat-link i { transition: transform 0.3s ease; }
.cat-card .cat-link:hover i { transform: translateX(4px); }

/* ============ 最新资讯 ============ */
.latest { background: var(--bg-white); }
.latest .section-head { display: flex; align-items: flex-end; justify-content: space-between; max-width: none; text-align: left; margin-bottom: 44px; }
.latest .section-head .head-left h2 { font-size: 32px; font-weight: 800; }
.latest .section-head .head-left p { margin-top: 6px; color: var(--text-muted); }
.latest-link { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 600; color: var(--primary); padding: 10px 20px; border: 1.5px solid var(--border-2); border-radius: 100px; }
.latest-link:hover { background: var(--primary-light); border-color: var(--primary); }
.news-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.news-card {
  background: var(--bg); border-radius: var(--radius-md); padding: 28px; border: 1px solid var(--border);
  transition: var(--transition); position: relative; overflow: hidden;
}
.news-card::before { content: ""; position: absolute; top: 0; left: 0; width: 3px; height: 0; background: var(--primary); transition: height 0.35s ease; }
.news-card:hover { box-shadow: var(--shadow-md); border-color: var(--border-2); }
.news-card:hover::before { height: 100%; }
.news-meta { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; }
.news-date { font-size: 12px; color: var(--text-light); display: flex; align-items: center; gap: 5px; }
.news-card h3 { font-size: 18px; font-weight: 650; line-height: 1.5; margin-bottom: 10px; }
.news-card h3 a:hover { color: var(--primary); }
.news-excerpt { font-size: 14px; color: var(--text-muted); line-height: 1.75; margin-bottom: 16px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-more { font-size: 13px; font-weight: 600; color: var(--primary); display: inline-flex; align-items: center; gap: 5px; }
.news-more i { transition: transform 0.3s ease; }
.news-more:hover i { transform: translateX(3px); }
.empty-tip {
  grid-column: 1 / -1; text-align: center; padding: 56px 20px; background: var(--bg);
  border-radius: var(--radius-md); border: 1px dashed var(--border-2); color: var(--text-muted);
}

/* ============ 数据 / 深色条带 ============ */
.stats-band {
  background-image: linear-gradient(115deg, rgba(10, 20, 44, 0.96), rgba(16, 35, 70, 0.9)), url('/assets/images/backpic/back-3.png');
  background-size: cover; background-position: center; color: #fff; padding: 80px 0; position: relative;
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; position: relative; z-index: 2; }
.stat-item { text-align: center; padding: 28px 10px; border-radius: var(--radius-md); background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.08); transition: var(--transition); }
.stat-item:hover { background: rgba(255,255,255,0.09); transform: translateY(-4px); }
.stat-item .num { font-size: 42px; font-weight: 900; line-height: 1.2; letter-spacing: -0.02em; }
.stat-item .num em { font-style: normal; font-size: 22px; font-weight: 700; color: var(--secondary); }
.stat-item .label { font-size: 14px; color: rgba(255,255,255,0.6); margin-top: 8px; letter-spacing: 0.06em; }

/* ============ 使用流程 ============ */
.process { background: var(--bg); }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; position: relative; }
.process-grid::before { content: ""; position: absolute; top: 40px; left: 8%; right: 8%; height: 2px; background: linear-gradient(90deg, var(--border), var(--primary), var(--border)); opacity: 0.35; }
.process-step { text-align: center; padding: 30px 16px; position: relative; z-index: 1; }
.process-step .step-icon {
  width: 80px; height: 80px; margin: 0 auto 20px; border-radius: 20px; background: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 26px; color: var(--primary);
  box-shadow: var(--shadow-md); border: 1px solid var(--border);
}
.process-step:nth-child(2) .step-icon { color: var(--secondary); }
.process-step:nth-child(3) .step-icon { color: var(--accent); }
.process-step:nth-child(4) .step-icon { color: #7c3aed; }
.process-step h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.process-step p { font-size: 13px; color: var(--text-muted); line-height: 1.7; }

/* ============ FAQ ============ */
.faq { background: var(--bg-white); }
.faq-list { max-width: 860px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; }
.faq-item { border: 1px solid var(--border); border-radius: var(--radius-md); background: #fff; overflow: hidden; transition: var(--transition); }
.faq-item:hover { border-color: var(--border-2); box-shadow: var(--shadow-sm); }
.faq-item[open] { box-shadow: var(--shadow-md); border-color: var(--primary); }
.faq-item summary {
  padding: 22px 26px; font-size: 16px; font-weight: 600; cursor: pointer; list-style: none;
  display: flex; align-items: center; justify-content: space-between; gap: 16px; transition: var(--transition);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "\f078"; font-family: "Font Awesome 6 Free"; font-weight: 900; font-size: 14px; color: var(--text-light); transition: transform 0.3s ease; flex-shrink: 0; }
.faq-item[open] summary::after { transform: rotate(180deg); color: var(--primary); }
.faq-item[open] summary { color: var(--primary); }
.faq-item .faq-answer { padding: 0 26px 22px; color: var(--text-muted); font-size: 15px; line-height: 1.8; }

/* ============ CTA ============ */
.cta-band {
  position: relative; padding: 88px 0; text-align: center; color: #fff; overflow: hidden;
  background-image: linear-gradient(110deg, rgba(18, 52, 125, 0.96), rgba(11, 26, 52, 0.95)), url('/assets/images/coverpic/cover-4.png');
  background-size: cover; background-position: center;
}
.cta-band::before { content: ""; position: absolute; width: 300px; height: 300px; border-radius: 50%; background: rgba(20, 184, 166, 0.18); top: -80px; left: -60px; }
.cta-band::after { content: ""; position: absolute; width: 220px; height: 220px; border-radius: 50%; background: rgba(245, 158, 11, 0.14); bottom: -70px; right: -40px; }
.cta-inner { position: relative; z-index: 2; }
.cta-inner h2 { font-size: 38px; font-weight: 800; letter-spacing: -0.02em; margin-bottom: 14px; }
.cta-inner p { font-size: 16px; color: rgba(255,255,255,0.8); max-width: 540px; margin: 0 auto 30px; }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ============ Footer ============ */
.site-footer { background: var(--dark); color: #fff; }
.footer-main { padding: 68px 0 44px; display: grid; grid-template-columns: 1.5fr 1fr 1.2fr; gap: 56px; }
.footer-brand .logo { color: #fff; margin-bottom: 18px; }
.footer-brand .logo-icon { width: 40px; height: 40px; background: linear-gradient(135deg, var(--primary), var(--secondary)); box-shadow: none; }
.footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255,255,255,0.55); max-width: 300px; }
.footer-col h4 { font-size: 16px; font-weight: 600; margin-bottom: 22px; color: #fff; position: relative; padding-bottom: 12px; }
.footer-col h4::after { content: ""; position: absolute; bottom: 0; left: 0; width: 26px; height: 2px; background: var(--secondary); }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { font-size: 14px; color: rgba(255,255,255,0.58); display: inline-flex; align-items: center; gap: 8px; }
.footer-col ul a:hover { color: var(--secondary); padding-left: 4px; }
.footer-col .footer-contact li { display: flex; align-items: flex-start; gap: 10px; color: rgba(255,255,255,0.58); font-size: 14px; }
.footer-col .footer-contact i { color: var(--secondary); margin-top: 4px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding: 22px 0; }
.footer-bottom-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer-bottom p { font-size: 13px; color: rgba(255,255,255,0.4); }
.footer-bottom .beian a { color: rgba(255,255,255,0.4); }
.footer-bottom .beian a:hover { color: var(--secondary); }

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .hero h1 { font-size: 42px; }
  .about-grid { grid-template-columns: 1fr; gap: 52px; }
  .about-media { max-width: 520px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .process-grid::before { display: none; }
  .cat-grid { grid-template-columns: 1fr 1fr; }
  .footer-main { grid-template-columns: 1fr 1fr; gap: 40px; }
  .header-search { flex-basis: 240px; }
}
@media (max-width: 768px) {
  .section { padding: 72px 0; }
  .hero { min-height: auto; }
  .hero h1 { font-size: 33px; }
  .hero-inner { padding: 76px 0; }
  .hero p { font-size: 15px; }
  .header-top-inner { height: 64px; }
  .header-search { display: none; }
  .menu-toggle { display: inline-flex; }
  .header-cta { display: none; }
  .header-nav { display: none; }
  .header-nav.open { display: block; position: absolute; top: 64px; left: 0; right: 0; background: var(--dark); }
  .header-nav.open .nav-inner { height: auto; padding: 10px 16px; display: flex; flex-direction: column; align-items: flex-start; gap: 4px; overflow-y: auto; max-height: 70vh; }
  .channel-nav { flex-direction: column; align-items: flex-start; width: 100%; height: auto; overflow: visible; }
  .channel-nav a { width: 100%; height: 44px; padding: 0 16px; border-radius: 8px; }
  .channel-nav a.active::after { display: none; }
  .channel-nav a.active { background: rgba(255,255,255,0.08); }
  .nav-more { padding: 10px 16px; }
  .news-grid { grid-template-columns: 1fr; }
  .cat-grid { grid-template-columns: 1fr; }
  .section-head { margin-bottom: 40px; }
  .section-head h2 { font-size: 28px; }
  .footer-main { grid-template-columns: 1fr; gap: 36px; }
  .footer-bottom-inner { flex-direction: column; text-align: center; }
  .latest .section-head { flex-direction: column; align-items: flex-start; gap: 16px; }
  .hero-stats { gap: 20px; }
  .hero-stats .stat b { font-size: 26px; }
}
@media (max-width: 520px) {
  .container { padding: 0 18px; }
  .hero h1 { font-size: 28px; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { width: 100%; }
  .about-features { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; gap: 16px; }
  .process-grid { grid-template-columns: 1fr; gap: 22px; }
  .faq-item summary { padding: 18px 20px; font-size: 15px; }
  .faq-item .faq-answer { padding: 0 20px 20px; font-size: 14px; }
  .cta-inner h2 { font-size: 28px; }
}

/* ============ 打印与无障碍 ============ */
a:focus-visible, button:focus-visible, input:focus-visible { outline: 3px solid rgba(26, 86, 219, 0.4); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } }

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root {
  --primary: #e11d48;
  --primary-dark: #be123c;
  --primary-light: #fda4af;
  --primary-bg: #fff1f2;
  --secondary: #0f172a;
  --secondary-light: #1e293b;
  --accent: #f59e0b;
  --accent-light: #fbbf24;
  --bg: #f8fafc;
  --bg-alt: #f1f5f9;
  --bg-dark: #0f172a;
  --text: #1e293b;
  --text-light: #64748b;
  --text-muted: #94a3b8;
  --border: #e2e8f0;
  --white: #ffffff;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 10px rgba(0,0,0,0.04);
  --shadow: 0 4px 24px rgba(0,0,0,0.07);
  --shadow-hover: 0 12px 40px rgba(0,0,0,0.12);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --container: 1200px;
}

/* ============ Reset / Base ============ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

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

ul, ol {
  list-style: none;
}

input, textarea {
  font-family: inherit;
  border: none;
  outline: none;
}

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

.section {
  padding: 80px 0;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 40px;
}

.section-head h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
  letter-spacing: -0.5px;
}

.section-head p {
  color: var(--text-light);
  font-size: 16px;
  max-width: 480px;
  line-height: 1.6;
}

h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.35;
}

/* ============ 按钮 ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  transition: var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
  box-shadow: 0 4px 16px rgba(225, 29, 72, 0.3);
}

.btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(225, 29, 72, 0.4);
}

.btn-outline {
  border-color: var(--border);
  color: var(--text);
  background: var(--white);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: var(--primary-bg);
  transform: translateY(-2px);
}

.btn-light {
  background: var(--white);
  color: var(--secondary);
}

.btn-light:hover {
  background: var(--primary-bg);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.btn-sm {
  padding: 8px 18px;
  font-size: 14px;
  border-radius: 50px;
}

/* ============ 徽章 / 标签 ============ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 14px;
  border-radius: 50px;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.5;
}

.badge-hot {
  background: #fff1f2;
  color: #e11d48;
}

.badge-live {
  background: #f0fdf4;
  color: #16a34a;
}

.badge-warn {
  background: #fffbeb;
  color: #d97706;
}

.badge-new {
  background: #eff6ff;
  color: #2563eb;
}

.badge-dot {
  position: relative;
  padding-left: 18px;
}

.badge-dot::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

/* ============ Header ============ */
.site-header {
  background: var(--white);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.04);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-top {
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
  background: var(--white);
}

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

.logo {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 24px;
  font-weight: 800;
  color: var(--secondary);
  letter-spacing: -0.5px;
}

.logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: var(--white);
  font-size: 18px;
  box-shadow: 0 4px 16px rgba(225, 29, 72, 0.25);
}

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

.header-nav {
  background: var(--white);
  border-bottom: 1px solid var(--border);
}

.channel-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.channel-nav::-webkit-scrollbar {
  display: none;
}

.channel-nav a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 20px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-light);
  border-bottom: 3px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
}

.channel-nav a i {
  font-size: 14px;
  opacity: 0.8;
}

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

.channel-nav a.active {
  color: var(--primary);
  font-weight: 600;
  border-bottom-color: var(--primary);
  background: transparent;
}

.channel-nav a.active i {
  color: var(--primary);
  opacity: 1;
}

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

.menu-toggle:hover {
  background: var(--bg-alt);
}

/* ============ Hero Banner ============ */
.category-hero {
  position: relative;
  padding: 100px 0;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.92), rgba(30, 41, 59, 0.82)), url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  color: var(--white);
  overflow: hidden;
}

.category-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 80% 20%, rgba(225, 29, 72, 0.25) 0%, transparent 50%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 680px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50px;
  font-size: 14px;
  font-weight: 500;
  color: #f1f5f9;
  margin-bottom: 20px;
  backdrop-filter: blur(8px);
}

.hero-eyebrow i {
  color: var(--accent-light);
}

.category-hero h1 {
  font-size: 48px;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 20px;
  color: var(--white);
}

.category-hero h1 span {
  color: var(--accent-light);
}

.category-hero p {
  font-size: 18px;
  color: rgba(226, 232, 240, 0.9);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 560px;
}

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

.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 56px;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.hero-stat {
  text-align: left;
}

.hero-stat .num {
  font-size: 32px;
  font-weight: 800;
  color: var(--accent-light);
  line-height: 1.2;
}

.hero-stat .label {
  font-size: 14px;
  color: rgba(226, 232, 240, 0.75);
  margin-top: 4px;
}

/* ============ 赛事分类卡片 ============ */
.category-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

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

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

.cat-card-media {
  position: relative;
  height: 160px;
  overflow: hidden;
}

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

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

.cat-card-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.35), transparent 60%);
}

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

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

.cat-card-body p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.65;
  margin-bottom: 16px;
  flex: 1;
}

.cat-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary);
  transition: var(--transition);
}

.cat-card-link i {
  transition: transform 0.3s ease;
}

.cat-card-link:hover {
  color: var(--primary-dark);
}

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

/* ============ 热门赛事列表 ============ */
.event-list-section {
  background: var(--bg-alt);
}

.event-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.event-item {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--border);
  transition: var(--transition);
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.event-item:hover {
  box-shadow: var(--shadow);
  border-color: transparent;
  transform: translateY(-2px);
}

.event-item-icon {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--white);
}

.event-item-icon.football {
  background: linear-gradient(135deg, #22c55e, #16a34a);
}

.event-item-icon.basketball {
  background: linear-gradient(135deg, #f97316, #ea580c);
}

.event-item-icon.track {
  background: linear-gradient(135deg, #3b82f6, #2563eb);
}

.event-item-icon.other {
  background: linear-gradient(135deg, #8b5cf6, #7c3aed);
}

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

.event-item-content h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.event-item-content p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.6;
}

.event-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 10px;
  font-size: 13px;
  color: var(--text-muted);
}

.event-meta span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

/* ============ 数据看板 ============ */
.data-section {
  background: var(--bg-dark);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.data-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(225, 29, 72, 0.2) 0%, transparent 70%);
}

.data-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
  z-index: 1;
}

.data-item {
  text-align: center;
  padding: 40px 24px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  transition: var(--transition);
}

.data-item:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateY(-4px);
}

.data-item .icon {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 16px;
  background: rgba(225, 29, 72, 0.2);
  color: var(--accent-light);
}

.data-item .number {
  font-size: 40px;
  font-weight: 800;
  color: var(--white);
  line-height: 1.2;
  letter-spacing: -1px;
}

.data-item .number span {
  font-size: 20px;
  font-weight: 600;
  color: var(--accent-light);
  margin-left: 2px;
}

.data-item .label {
  font-size: 14px;
  color: rgba(226, 232, 240, 0.65);
  margin-top: 8px;
}

/* ============ 观赛流程 ============ */
.flow-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
  margin-top: 16px;
}

.flow-step {
  text-align: center;
  padding: 32px 20px;
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  transition: var(--transition);
  position: relative;
}

.flow-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.flow-step-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary-bg);
  color: var(--primary);
  font-size: 18px;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.flow-step h3 {
  font-size: 17px;
  margin-bottom: 8px;
  color: var(--text);
}

.flow-step p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.6;
}

.flow-arrow {
  position: absolute;
  top: 50%;
  right: -18px;
  transform: translateY(-50%);
  color: var(--border);
  font-size: 20px;
  z-index: 2;
  background: var(--bg);
  border-radius: 50%;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.flow-step:last-child .flow-arrow {
  display: none;
}

/* ============ FAQ ============ */
.faq-section {
  background: var(--bg-alt);
}

.faq-list {
  max-width: 820px;
  margin: 0 auto;
}

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

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

.faq-question {
  padding: 22px 28px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
  transition: var(--transition);
}

.faq-question i {
  color: var(--text-muted);
  font-size: 14px;
  transition: var(--transition);
  flex-shrink: 0;
}

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

.faq-answer {
  max-height: 0;
  padding: 0 28px;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-answer p {
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.7;
  padding-bottom: 20px;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding-top: 0;
  padding-bottom: 0;
}

/* ============ CTA ============ */
.cta-section {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--secondary), #1a1a2e);
  color: var(--white);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -60%;
  left: -20%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(225, 29, 72, 0.3) 0%, transparent 70%);
}

.cta-section::after {
  content: '';
  position: absolute;
  bottom: -60%;
  right: -20%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.2) 0%, transparent 70%);
}

.cta-inner {
  max-width: 640px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.cta-inner h2 {
  font-size: 36px;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.cta-inner p {
  font-size: 17px;
  color: rgba(226, 232, 240, 0.85);
  margin-bottom: 32px;
  line-height: 1.6;
}

.cta-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============ Footer ============ */
.site-footer {
  background: var(--bg-dark);
  color: rgba(226, 232, 240, 0.75);
  padding-top: 64px;
  border-top: 4px solid var(--primary);
}

.footer-main {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .logo {
  color: var(--white);
  font-size: 22px;
  margin-bottom: 16px;
}

.footer-brand .logo-icon {
  width: 38px;
  height: 38px;
  font-size: 16px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(226, 232, 240, 0.6);
  max-width: 320px;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 32px;
  height: 3px;
  border-radius: 3px;
  background: var(--primary);
}

.footer-col ul li {
  margin-bottom: 12px;
}

.footer-col ul a {
  font-size: 14px;
  color: rgba(226, 232, 240, 0.65);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: var(--transition);
}

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

.footer-contact li {
  font-size: 14px;
  color: rgba(226, 232, 240, 0.65);
  line-height: 1.6;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 14px;
}

.footer-contact li i {
  color: var(--accent-light);
  margin-top: 4px;
  font-size: 13px;
}

.footer-bottom {
  padding: 24px 0;
  background: rgba(0, 0, 0, 0.2);
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(226, 232, 240, 0.45);
}

.footer-bottom .beian a {
  color: rgba(226, 232, 240, 0.45);
  transition: var(--transition);
}

.footer-bottom .beian a:hover {
  color: var(--accent-light);
}

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .container {
    padding: 0 20px;
  }

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

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

  .event-list {
    grid-template-columns: 1fr;
  }

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

  .flow-arrow {
    display: none;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

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

@media (max-width: 768px) {
  .section {
    padding: 56px 0;
  }

  .header-top {
    padding: 12px 0;
  }

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

  .category-hero {
    padding: 72px 0;
  }

  .category-hero h1 {
    font-size: 34px;
  }

  .category-hero p {
    font-size: 16px;
  }

  .hero-stats {
    gap: 24px;
    flex-wrap: wrap;
  }

  .hero-stat .num {
    font-size: 26px;
  }

  .channel-nav a {
    padding: 14px 16px;
    font-size: 14px;
  }

  .section-head h2 {
    font-size: 26px;
  }
}

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

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

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

  .flow-steps {
    grid-template-columns: 1fr;
  }

  .category-hero h1 {
    font-size: 28px;
  }

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

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

  .event-item {
    flex-direction: column;
    gap: 12px;
  }

  .cta-inner h2 {
    font-size: 28px;
  }

  .footer-bottom-inner {
    flex-direction: column;
    text-align: center;
  }
}

/* ============ 焦点可访问性 ============ */
a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--primary-light);
  outline-offset: 2px;
  border-radius: 4px;
}

.channel-nav a:focus-visible {
  outline-offset: -2px;
}

/* ============ 动画辅助 ============ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-inner {
  animation: fadeInUp 0.8s ease both;
}

.cat-card:nth-child(2) {
  animation-delay: 0.1s;
}
.cat-card:nth-child(3) {
  animation-delay: 0.2s;
}
.cat-card:nth-child(4) {
  animation-delay: 0.3s;
}

/* roulang page: article */
/* ===== 设计变量 ===== */
:root {
    --primary: #0f172a;
    --primary-light: #1e293b;
    --brand: #2563eb;
    --brand-light: #3b82f6;
    --accent: #f97316;
    --accent-dark: #ea580c;
    --bg-body: #ffffff;
    --bg-soft: #f1f5f9;
    --bg-deep: #0f172a;
    --text: #1e293b;
    --text-weak: #64748b;
    --border: #e2e8f0;
    --white: #ffffff;
    --radius-sm: 8px;
    --radius: 14px;
    --radius-lg: 22px;
    --shadow-sm: 0 2px 10px rgba(15,23,42,.05);
    --shadow: 0 8px 30px rgba(15,23,42,.08);
    --shadow-lg: 0 16px 48px rgba(15,23,42,.12);
    --container: 1200px;
    --transition: .25s ease;
    --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
/* ===== 基础重置 ===== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg-body);
    -webkit-font-smoothing: antialiased;
}
img, svg {
    max-width: 100%;
    display: block;
}
a {
    color: inherit;
    text-decoration: none;
}
button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
    outline: none;
}
.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 24px;
}
/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 15px;
    line-height: 1.2;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    background: transparent;
    white-space: nowrap;
}
.btn-primary {
    background: var(--brand);
    color: #fff;
    box-shadow: 0 4px 18px rgba(37,99,235,.28);
}
.btn-primary:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(37,99,235,.35);
}
.btn-accent {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 4px 18px rgba(249,115,22,.28);
}
.btn-accent:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(249,115,22,.35);
}
.btn-outline {
    border-color: var(--border);
    color: var(--text);
    background: #fff;
}
.btn-outline:hover {
    border-color: var(--brand);
    color: var(--brand);
    background: #f0f4ff;
}
.btn-ghost {
    border-color: rgba(255,255,255,.4);
    color: #fff;
}
.btn-ghost:hover {
    border-color: #fff;
    background: rgba(255,255,255,.1);
}
.btn-sm {
    padding: 8px 18px;
    font-size: 13px;
}
.btn:focus-visible,
a:focus-visible {
    outline: 3px solid rgba(37,99,235,.35);
    outline-offset: 2px;
}
/* ===== 徽章 / 标签 ===== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 16px;
    border-radius: 50px;
    background: rgba(255,255,255,.16);
    color: #fff;
    font-size: 13px;
    font-weight: 500;
    backdrop-filter: blur(4px);
}
.tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 14px;
    border-radius: 50px;
    background: var(--bg-soft);
    color: var(--text-weak);
    font-size: 13px;
    font-weight: 500;
    transition: all var(--transition);
    border: 1px solid var(--border);
}
.tag:hover {
    background: #fff;
    border-color: var(--brand);
    color: var(--brand);
}
/* ===== Header ===== */
.site-header {
    position: relative;
    z-index: 100;
}
.brand-bar {
    background: var(--bg-deep);
    padding: 14px 0;
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #fff;
    font-size: 24px;
    font-weight: 800;
    letter-spacing: .5px;
}
.logo-icon {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--accent), #fbbf24);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: #fff;
    box-shadow: 0 4px 16px rgba(249,115,22,.35);
}
.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}
.header-search {
    position: relative;
}
.header-search form {
    position: relative;
    display: flex;
    align-items: center;
}
.header-search i {
    position: absolute;
    left: 14px;
    color: var(--text-weak);
    font-size: 14px;
    pointer-events: none;
}
.header-search input {
    width: 240px;
    padding: 9px 16px 9px 40px;
    border-radius: 50px;
    border: 1px solid rgba(255,255,255,.18);
    background: rgba(255,255,255,.08);
    color: #fff;
    font-size: 14px;
    transition: all var(--transition);
}
.header-search input::placeholder {
    color: rgba(255,255,255,.55);
}
.header-search input:focus {
    border-color: var(--accent);
    background: rgba(255,255,255,.14);
}
.header-cta {
    border-radius: 50px;
}
.nav-toggle {
    display: none;
    border: 1px solid rgba(255,255,255,.3);
    background: rgba(255,255,255,.1);
    color: #fff;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    font-size: 18px;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    transition: all var(--transition);
}
.nav-toggle:hover {
    background: rgba(255,255,255,.2);
}
.channel-bar {
    background: #fff;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 2px 12px rgba(15,23,42,.04);
}
.channel-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    overflow-x: auto;
    padding: 0;
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
}
.channel-nav::-webkit-scrollbar {
    height: 4px;
}
.channel-nav a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 20px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text);
    border-bottom: 3px solid transparent;
    transition: all var(--transition);
    white-space: nowrap;
    border-radius: 0;
}
.channel-nav a i {
    color: var(--text-weak);
    font-size: 14px;
    transition: color var(--transition);
}
.channel-nav a:hover {
    color: var(--brand);
}
.channel-nav a:hover i {
    color: var(--brand);
}
.channel-nav a.active {
    color: var(--brand);
    border-bottom-color: var(--brand);
}
.channel-nav a.active i {
    color: var(--brand);
}
/* ===== 文章 Hero ===== */
.article-hero {
    background: linear-gradient(135deg, rgba(15,23,42,.88) 0%, rgba(30,58,138,.78) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
    padding: 80px 0 72px;
    color: #fff;
}
.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: rgba(255,255,255,.7);
    margin-bottom: 28px;
}
.breadcrumb a {
    color: rgba(255,255,255,.85);
    transition: color var(--transition);
}
.breadcrumb a:hover {
    color: #fbbf24;
}
.breadcrumb i {
    font-size: 12px;
    color: rgba(255,255,255,.4);
}
.breadcrumb span {
    color: rgba(255,255,255,.6);
    max-width: 260px;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}
.article-hero-inner {
    max-width: 860px;
}
.article-hero-inner h1 {
    font-size: clamp(26px, 4vw, 42px);
    font-weight: 800;
    line-height: 1.3;
    letter-spacing: .5px;
    margin-bottom: 16px;
}
.article-hero-desc {
    font-size: 16px;
    line-height: 1.8;
    color: rgba(255,255,255,.8);
    margin-bottom: 24px;
}
.article-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 14px;
}
.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: rgba(255,255,255,.72);
    font-size: 14px;
}
/* ===== 文章主体 ===== */
.article-section {
    padding: 64px 0;
    background: var(--bg-soft);
}
.article-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 350px;
    gap: 40px;
    align-items: start;
}
.article-main {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 48px;
    box-shadow: var(--shadow-sm);
}
/* ===== 文章内容排版 ===== */
.article-content {
    font-size: 16px;
    line-height: 1.9;
    color: #334155;
}
.article-content p {
    margin: 18px 0;
}
.article-content h2 {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    margin: 36px 0 16px;
    padding-left: 14px;
    border-left: 4px solid var(--brand);
    border-radius: 2px;
}
.article-content h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--primary);
    margin: 28px 0 12px;
}
.article-content h4 {
    font-size: 17px;
    font-weight: 600;
    color: var(--primary);
    margin: 20px 0 10px;
}
.article-content img {
    border-radius: var(--radius);
    margin: 24px 0;
    box-shadow: var(--shadow-sm);
}
.article-content blockquote {
    margin: 24px 0;
    padding: 18px 22px;
    background: #fff7ed;
    border-left: 4px solid var(--accent);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    color: #7c2d12;
    font-size: 15px;
    line-height: 1.8;
}
.article-content ul,
.article-content ol {
    margin: 16px 0;
    padding-left: 28px;
}
.article-content li {
    margin: 8px 0;
}
.article-content a {
    color: var(--brand);
    border-bottom: 1px solid rgba(37,99,235,.3);
    transition: color var(--transition);
}
.article-content a:hover {
    color: var(--accent);
    border-bottom-color: var(--accent);
}
.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 14px;
}
.article-content th,
.article-content td {
    border: 1px solid var(--border);
    padding: 10px 14px;
    text-align: left;
}
.article-content th {
    background: var(--bg-soft);
    font-weight: 600;
}
/* ===== 文章标签 / 分享 ===== */
.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 36px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}
.article-share {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
    font-size: 14px;
    color: var(--text-weak);
}
.article-share a {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-weak);
    font-size: 16px;
    transition: all var(--transition);
}
.article-share a:hover {
    background: var(--brand);
    border-color: var(--brand);
    color: #fff;
    transform: translateY(-2px);
}
/* ===== 侧边栏 ===== */
.article-sidebar {
    display: flex;
    flex-direction: column;
    gap: 24px;
    position: sticky;
    top: 20px;
}
.widget {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
}
.widget h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.widget h3 i {
    color: var(--brand);
    font-size: 16px;
}
.widget-cat-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.widget-cat-list li a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 14px;
    border-radius: 12px;
    border: 1px solid transparent;
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
    transition: all var(--transition);
}
.widget-cat-list li a i {
    color: var(--text-weak);
}
.widget-cat-list li a .arrow {
    color: var(--border);
    transition: color var(--transition);
}
.widget-cat-list li a:hover {
    background: #f0f4ff;
    border-color: #dbeafe;
    color: var(--brand);
    transform: translateX(4px);
}
.widget-cat-list li a:hover i {
    color: var(--brand);
}
.widget-cat-list li a:hover .arrow {
    color: var(--brand);
}
.widget-empty {
    color: var(--text-weak);
    font-size: 14px;
    text-align: center;
    padding: 12px 0;
}
.recommend-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 10px 0;
    border-bottom: 1px solid var(--bg-soft);
    transition: all var(--transition);
}
.recommend-item:last-child {
    border-bottom: none;
}
.recommend-item:hover .recommend-title {
    color: var(--brand);
}
.recommend-thumb {
    width: 64px;
    height: 64px;
    border-radius: 12px;
    overflow: hidden;
    flex-shrink: 0;
}
.recommend-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .4s ease;
}
.recommend-item:hover .recommend-thumb img {
    transform: scale(1.08);
}
.recommend-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}
.recommend-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
    line-height: 1.45;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--transition);
}
.recommend-meta {
    font-size: 12px;
    color: var(--text-weak);
}
.widget-card {
    text-align: center;
    padding: 0;
    overflow: hidden;
}
.widget-card-img {
    height: 130px;
    overflow: hidden;
}
.widget-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.widget-card h4 {
    font-size: 17px;
    font-weight: 700;
    color: var(--primary);
    margin: 18px 16px 8px;
}
.widget-card p {
    font-size: 14px;
    color: var(--text-weak);
    padding: 0 16px;
    margin-bottom: 16px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.widget-card .btn {
    margin-bottom: 18px;
}
/* ===== 相关阅读 ===== */
.related-section {
    padding: 72px 0;
    background: var(--white);
}
.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 32px;
    gap: 20px;
    flex-wrap: wrap;
}
.section-eyebrow {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 6px;
}
.section-head h2 {
    font-size: 30px;
    font-weight: 800;
    color: var(--primary);
    margin: 0;
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}
.post-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition);
    display: block;
}
.post-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow);
    border-color: #dbeafe;
}
.post-card-cover {
    position: relative;
    height: 200px;
    overflow: hidden;
}
.post-card-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .45s ease;
}
.post-card:hover .post-card-cover img {
    transform: scale(1.06);
}
.post-card-cat {
    position: absolute;
    top: 14px;
    left: 14px;
    padding: 5px 14px;
    border-radius: 50px;
    background: rgba(15,23,42,.72);
    backdrop-filter: blur(6px);
    color: #fff;
    font-size: 12px;
    font-weight: 600;
}
.post-card-body {
    padding: 20px 22px 22px;
}
.post-card-body h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.5;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color var(--transition);
}
.post-card:hover .post-card-body h3 {
    color: var(--brand);
}
.post-card-body p {
    font-size: 14px;
    color: var(--text-weak);
    line-height: 1.7;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 14px;
}
.post-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    color: var(--text-weak);
}
.read-more {
    color: var(--brand);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: gap var(--transition);
}
.post-card:hover .read-more {
    gap: 8px;
}
.empty-tip {
    text-align: center;
    color: var(--text-weak);
    padding: 32px 0;
    grid-column: 1 / -1;
}
/* ===== CTA ===== */
.cta-section {
    padding: 0 0 80px;
    background: var(--white);
}
.cta-box {
    background: linear-gradient(135deg, var(--primary) 0%, #1e3a8a 100%);
    border-radius: var(--radius-lg);
    padding: 52px 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 36px;
    flex-wrap: wrap;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}
.cta-box::after {
    content: '';
    position: absolute;
    right: -40px;
    top: -40px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(255,255,255,.06);
}
.cta-box > * {
    position: relative;
    z-index: 1;
}
.cta-box h2 {
    color: #fff;
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 8px;
}
.cta-box p {
    color: rgba(255,255,255,.75);
    font-size: 15px;
}
.cta-form {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}
.cta-form input {
    width: 280px;
    padding: 13px 20px;
    border-radius: 50px;
    border: 1px solid rgba(255,255,255,.25);
    background: rgba(255,255,255,.1);
    color: #fff;
    font-size: 14px;
    transition: all var(--transition);
}
.cta-form input::placeholder {
    color: rgba(255,255,255,.55);
}
.cta-form input:focus {
    border-color: var(--accent);
    background: rgba(255,255,255,.16);
}
/* ===== 内容未找到 ===== */
.article-notfound {
    text-align: center;
    padding: 48px 20px;
}
.article-notfound i {
    font-size: 52px;
    color: var(--border);
    margin-bottom: 20px;
}
.article-notfound h2 {
    font-size: 26px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 12px;
}
.article-notfound p {
    color: var(--text-weak);
    margin-bottom: 24px;
}
/* ===== 页脚 ===== */
.site-footer {
    background: var(--bg-deep);
    color: #94a3b8;
    padding-top: 72px;
}
.footer-main {
    display: grid;
    grid-template-columns: 1.4fr .8fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer-brand .logo {
    margin-bottom: 16px;
}
.footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    color: #94a3b8;
    max-width: 360px;
}
.footer-col h4 {
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 18px;
}
.footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.footer-col ul li a {
    color: #94a3b8;
    font-size: 14px;
    transition: all var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.footer-col ul li a i {
    font-size: 12px;
}
.footer-col ul li a:hover {
    color: #fff;
    padding-left: 4px;
}
.footer-col .footer-contact li {
    color: #94a3b8;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 8px;
    line-height: 1.6;
}
.footer-col .footer-contact i {
    color: var(--accent);
    font-size: 15px;
    flex-shrink: 0;
}
.footer-bottom {
    padding: 24px 0;
}
.footer-bottom-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}
.footer-bottom-inner p {
    font-size: 13px;
    color: #64748b;
}
.footer-bottom-inner p a {
    color: #64748b;
    transition: color var(--transition);
}
.footer-bottom-inner p a:hover {
    color: #fff;
}
/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .article-layout {
        grid-template-columns: minmax(0, 1fr) 320px;
        gap: 28px;
    }
    .article-main {
        padding: 36px;
    }
    .cta-box {
        padding: 40px 32px;
    }
    .cta-form input {
        width: 220px;
    }
}
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }
    .header-search {
        display: none;
    }
    .channel-bar {
        display: none;
        background: #fff;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow);
    }
    .channel-bar.open {
        display: block;
    }
    .channel-nav {
        flex-direction: column;
        align-items: stretch;
        padding: 12px 0;
        overflow: visible;
    }
    .channel-nav a {
        padding: 14px 24px;
        border-bottom: 1px solid var(--bg-soft);
        border-left: 3px solid transparent;
    }
    .channel-nav a.active {
        border-left-color: var(--brand);
        border-bottom-color: var(--bg-soft);
        background: #f0f4ff;
    }
    .footer-main {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .article-section {
        padding: 40px 0;
    }
    .article-layout {
        grid-template-columns: 1fr;
    }
    .article-sidebar {
        position: static;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }
    .widget-card {
        grid-column: 1 / -1;
    }
    .related-grid {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }
    .cta-box {
        padding: 32px 24px;
        flex-direction: column;
        text-align: center;
    }
    .cta-form {
        justify-content: center;
        width: 100%;
    }
    .cta-form input {
        width: 100%;
        max-width: 340px;
    }
    .article-hero {
        padding: 56px 0 48px;
    }
    .breadcrumb {
        margin-bottom: 18px;
    }
}
@media (max-width: 520px) {
    .article-main {
        padding: 24px 18px;
    }
    .article-hero-inner h1 {
        font-size: 22px;
    }
    .related-grid {
        grid-template-columns: 1fr;
    }
    .footer-bottom-inner {
        flex-direction: column;
        text-align: center;
    }
    .header-inner {
        flex-wrap: wrap;
    }
    .logo {
        font-size: 20px;
    }
    .header-cta {
        display: none;
    }
    .article-sidebar {
        grid-template-columns: 1fr;
    }
    .cta-form .btn {
        width: 100%;
    }
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root {
  --primary: #1e40af;
  --primary-dark: #172f8a;
  --primary-light: #3b82f6;
  --accent: #f59e0b;
  --accent-hover: #d97706;
  --bg-body: #f6f8fc;
  --bg-white: #ffffff;
  --bg-dark: #0f172a;
  --bg-gray: #eef2f7;
  --text-main: #1e293b;
  --text-weak: #64748b;
  --text-invert: #ffffff;
  --border: #e2e8f0;
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 6px 20px rgba(0,0,0,0.07);
  --shadow-lg: 0 16px 40px rgba(0,0,0,0.10);
  --transition: 0.3s ease;
  --section-space: 76px;
}

/* ============ Reset & Base ============ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-main);
  background: var(--bg-body);
  -webkit-font-smoothing: antialiased;
}

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

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

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

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

input,
textarea,
select {
  font-family: inherit;
  font-size: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

input:focus,
textarea:focus,
select:focus {
  border-color: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============ Header ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-white);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.brand-bar {
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
}

.brand-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-main);
}

.logo-icon {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  font-size: 1.15rem;
  box-shadow: 0 4px 12px rgba(30, 64, 175, 0.3);
}

.brand-slogan {
  font-size: 0.85rem;
  color: var(--text-weak);
  display: block;
  line-height: 1.3;
  margin-top: 2px;
  letter-spacing: 0.5px;
}

.header-search {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-gray);
  border-radius: 30px;
  padding: 6px 16px;
  border: 1px solid transparent;
  transition: all var(--transition);
}

.header-search:hover,
.header-search:focus-within {
  border-color: var(--primary-light);
  background: var(--bg-white);
}

.header-search i {
  color: var(--text-weak);
}

.header-search input {
  border: none;
  background: transparent;
  padding: 6px 0;
  width: 200px;
}

.header-search input:focus {
  box-shadow: none;
}

.header-action {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 22px;
  border-radius: 30px;
  background: var(--primary);
  color: var(--text-invert);
  font-weight: 600;
  font-size: 0.92rem;
  transition: all var(--transition);
  box-shadow: 0 4px 12px rgba(30, 64, 175, 0.25);
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(30, 64, 175, 0.32);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  border-radius: 30px;
  border: 1.5px solid var(--primary-light);
  color: var(--primary);
  font-weight: 600;
  font-size: 0.9rem;
  transition: all var(--transition);
}

.btn-outline:hover {
  background: var(--primary);
  color: var(--text-invert);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(30, 64, 175, 0.22);
}

/* ============ 频道导航 ============ */
.channel-bar {
  background: var(--bg-white);
}

.channel-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 0;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.channel-nav::-webkit-scrollbar {
  display: none;
}

.channel-nav a {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 18px;
  border-radius: 30px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-weak);
  background: transparent;
  transition: all var(--transition);
}

.channel-nav a i {
  font-size: 0.85rem;
}

.channel-nav a:hover {
  color: var(--primary);
  background: var(--bg-gray);
}

.channel-nav a.active {
  background: var(--primary);
  color: var(--text-invert);
  box-shadow: 0 4px 12px rgba(30, 64, 175, 0.25);
}

/* ============ 页面 Banner ============ */
.category-banner {
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.85), rgba(30, 64, 175, 0.7)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  padding: 90px 0 100px;
  color: var(--text-invert);
  position: relative;
}

.banner-inner {
  max-width: 720px;
}

.banner-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 30px;
  padding: 6px 18px;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 20px;
  backdrop-filter: blur(4px);
}

.banner-tag i {
  color: var(--accent);
}

.banner-inner h1 {
  font-size: 2.6rem;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 18px;
}

.banner-inner h1 span {
  color: var(--accent);
}

.banner-inner p {
  font-size: 1.1rem;
  line-height: 1.7;
  opacity: 0.92;
  margin-bottom: 28px;
}

.banner-ctas {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-light {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 30px;
  background: var(--text-invert);
  color: var(--primary-dark);
  font-weight: 700;
  font-size: 0.95rem;
  transition: all var(--transition);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.btn-light:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-2px);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 26px;
  border-radius: 30px;
  border: 1.5px solid rgba(255, 255, 255, 0.5);
  color: var(--text-invert);
  font-weight: 600;
  font-size: 0.92rem;
  transition: all var(--transition);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text-invert);
  border-color: var(--text-invert);
}

.banner-metrics {
  display: flex;
  gap: 40px;
  margin-top: 36px;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.metric-item {
  text-align: left;
}

.metric-value {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
}

.metric-label {
  font-size: 0.9rem;
  opacity: 0.8;
  margin-top: 4px;
}

/* ============ Section 通用 ============ */
.section {
  padding: var(--section-space) 0;
}

.section-white {
  background: var(--bg-white);
}

.section-gray {
  background: var(--bg-body);
}

.section-dark {
  background: var(--bg-dark);
  color: var(--text-invert);
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 50px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--primary);
  background: rgba(30, 64, 175, 0.08);
  padding: 5px 16px;
  border-radius: 30px;
  margin-bottom: 14px;
  letter-spacing: 1px;
}

.section-title {
  font-size: 2.1rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 14px;
  color: var(--text-main);
}

.section-dark .section-title {
  color: var(--text-invert);
}

.section-subtitle {
  font-size: 1rem;
  color: var(--text-weak);
  line-height: 1.7;
}

.section-dark .section-subtitle {
  color: rgba(255, 255, 255, 0.7);
}

/* ============ 场景分类卡片 ============ */
.scene-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.scene-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}

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

.scene-card-img {
  position: relative;
  height: 200px;
  overflow: hidden;
}

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

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

.scene-card-img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.35), transparent);
}

.scene-card-body {
  padding: 22px 20px 24px;
}

.scene-card-body h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-main);
}

.scene-card-body p {
  font-size: 0.9rem;
  color: var(--text-weak);
  line-height: 1.6;
  margin-bottom: 14px;
}

.scene-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.tag-badge {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--primary);
  background: rgba(30, 64, 175, 0.08);
  padding: 3px 10px;
  border-radius: 20px;
}

.scene-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--primary);
  transition: gap var(--transition);
}

.scene-card-link:hover {
  gap: 10px;
  color: var(--accent-hover);
}

/* ============ 热门装备推荐 ============ */
.featured-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.featured-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  position: relative;
}

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

.featured-card-img {
  height: 210px;
  overflow: hidden;
  position: relative;
}

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

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

.featured-rank {
  position: absolute;
  top: 14px;
  left: 14px;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 800;
  font-size: 0.95rem;
  box-shadow: 0 4px 10px rgba(245, 158, 11, 0.4);
  z-index: 2;
}

.featured-card-body {
  padding: 20px 22px 24px;
}

.featured-card-body h3 {
  font-size: 1.12rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-main);
}

.featured-card-body p {
  font-size: 0.9rem;
  color: var(--text-weak);
  line-height: 1.65;
  margin-bottom: 14px;
}

.featured-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--text-weak);
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.featured-meta .evaluate-score {
  color: var(--accent-hover);
  font-weight: 700;
}

/* ============ 选购流程 ============ */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.process-item {
  text-align: center;
  padding: 36px 24px;
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  position: relative;
}

.process-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.process-icon {
  width: 70px;
  height: 70px;
  margin: 0 auto 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  font-size: 1.6rem;
  box-shadow: 0 6px 16px rgba(30, 64, 175, 0.25);
}

.process-step {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 2px;
  margin-bottom: 8px;
}

.process-item h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-main);
}

.process-item p {
  font-size: 0.88rem;
  color: var(--text-weak);
  line-height: 1.6;
}

/* ============ 文章列表 ============ */
.article-list {
  display: grid;
  gap: 20px;
}

.article-item {
  display: flex;
  align-items: center;
  gap: 24px;
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}

.article-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateX(4px);
}

.article-item-img {
  width: 240px;
  height: 140px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
}

.article-item-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.article-item:hover .article-item-img img {
  transform: scale(1.05);
}

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

.article-item-content h3 {
  font-size: 1.08rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-main);
  transition: color var(--transition);
}

.article-item-content h3 a:hover {
  color: var(--primary);
}

.article-item-content p {
  font-size: 0.9rem;
  color: var(--text-weak);
  line-height: 1.6;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.article-item-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.8rem;
  color: var(--text-weak);
}

.article-item-meta span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.article-item-meta i {
  color: var(--primary-light);
}

/* ============ FAQ ============ */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: grid;
  gap: 12px;
}

.faq-item {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 0;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  border: 1px solid transparent;
  transition: all var(--transition);
}

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

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-main);
  text-align: left;
  transition: color var(--transition);
}

.faq-question:hover {
  color: var(--primary);
}

.faq-question i {
  font-size: 0.9rem;
  color: var(--primary-light);
  transition: transform var(--transition);
  flex-shrink: 0;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0 24px;
}

.faq-item.open .faq-answer {
  max-height: 300px;
  padding: 0 24px 20px;
}

.faq-answer p {
  font-size: 0.92rem;
  color: var(--text-weak);
  line-height: 1.7;
  border-top: 1px solid var(--border);
  padding-top: 14px;
}

/* ============ CTA ============ */
.cta-section {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  border-radius: var(--radius-lg);
  padding: 60px 48px;
  position: relative;
  overflow: hidden;
  color: var(--text-invert);
}

.cta-section::before {
  content: "";
  position: absolute;
  top: -40px;
  right: -40px;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
}

.cta-section::after {
  content: "";
  position: absolute;
  bottom: -60px;
  left: 30%;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
}

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

.cta-content h2 {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 10px;
}

.cta-content p {
  opacity: 0.85;
  font-size: 1rem;
  max-width: 480px;
}

.cta-form {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.cta-form input {
  min-width: 260px;
  border-radius: 30px;
  border: none;
  padding: 12px 22px;
  font-size: 0.92rem;
  background: rgba(255, 255, 255, 0.95);
}

.cta-form input:focus {
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.25);
}

.cta-form .btn-accent {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 30px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  font-size: 0.95rem;
  transition: all var(--transition);
}

.cta-form .btn-accent:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(245, 158, 11, 0.4);
}

/* ============ Footer ============ */
.site-footer {
  background: var(--bg-dark);
  color: rgba(255, 255, 255, 0.75);
  padding: 60px 0 0;
  margin-top: 0;
  font-size: 0.92rem;
}

.footer-main {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .logo {
  color: var(--text-invert);
  font-size: 1.4rem;
  margin-bottom: 16px;
}

.footer-brand .logo-icon {
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  box-shadow: none;
}

.footer-brand p {
  line-height: 1.8;
  opacity: 0.65;
  font-size: 0.9rem;
  max-width: 320px;
}

.footer-col h4 {
  color: var(--text-invert);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 18px;
  letter-spacing: 0.5px;
}

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

.footer-col ul li a {
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition);
}

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

.footer-col ul li a i {
  font-size: 0.8rem;
}

.footer-contact li {
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.88rem;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  line-height: 1.6;
}

.footer-contact li i {
  color: var(--accent);
  margin-top: 4px;
}

.footer-bottom {
  padding: 20px 0;
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 0.85rem;
  opacity: 0.5;
}

.footer-bottom-inner a {
  color: rgba(255, 255, 255, 0.7);
}

/* ============ 面包屑 ============ */
.breadcrumb {
  font-size: 0.88rem;
  color: var(--text-weak);
  margin: 20px 0 0;
}

.breadcrumb a {
  color: var(--text-weak);
}

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

.breadcrumb span {
  color: var(--text-main);
  font-weight: 500;
}

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .scene-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .featured-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-main {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  :root {
    --section-space: 56px;
  }
  .brand-slogan {
    display: none;
  }
  .header-action {
    gap: 8px;
  }
  .header-search {
    display: none;
  }
  .banner-inner h1 {
    font-size: 2rem;
  }
  .banner-inner p {
    font-size: 1rem;
  }
  .banner-metrics {
    gap: 24px;
  }
  .metric-value {
    font-size: 1.5rem;
  }
  .section-title {
    font-size: 1.7rem;
  }
  .article-item {
    flex-direction: column;
    align-items: flex-start;
    padding: 14px;
  }
  .article-item-img {
    width: 100%;
    height: 180px;
  }
  .cta-section {
    padding: 40px 24px;
  }
  .cta-inner {
    flex-direction: column;
    gap: 24px;
    text-align: center;
  }
  .cta-content p {
    margin: 0 auto;
  }
  .cta-form {
    justify-content: center;
  }
  .cta-form input {
    min-width: 220px;
  }
  .footer-main {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom-inner {
    flex-direction: column;
    justify-content: center;
    text-align: center;
  }
}

@media (max-width: 520px) {
  .logo {
    font-size: 1.25rem;
  }
  .logo-icon {
    width: 36px;
    height: 36px;
    font-size: 1rem;
  }
  .channel-nav a {
    padding: 6px 12px;
    font-size: 0.88rem;
  }
  .scene-grid {
    grid-template-columns: 1fr;
  }
  .featured-grid {
    grid-template-columns: 1fr;
  }
  .process-grid {
    grid-template-columns: 1fr;
  }
  .banner-metrics {
    flex-wrap: wrap;
    gap: 16px;
  }
  .metric-value {
    font-size: 1.3rem;
  }
  .cta-form {
    flex-direction: column;
    width: 100%;
  }
  .cta-form input {
    width: 100%;
    min-width: 0;
  }
  .cta-form .btn-accent {
    width: 100%;
    justify-content: center;
  }
}

/* roulang page: category3 */
:root{
  --primary:#0b6e4f;
  --primary-dark:#074229;
  --primary-deep:#052e1e;
  --primary-light:#e2efe9;
  --primary-lighter:#f0f8f4;
  --accent:#e8a838;
  --accent-dark:#c9841b;
  --accent-light:#fdf3e0;
  --dark:#081c15;
  --dark-soft:#0e2a20;
  --bg:#ffffff;
  --bg-soft:#f5f9f7;
  --bg-deep:#0b2418;
  --text:#1c2b25;
  --text-weak:#64766e;
  --border:#dfe9e4;
  --border-strong:#cddcd5;
  --radius-xl:24px;
  --radius-lg:18px;
  --radius-md:12px;
  --radius-sm:8px;
  --shadow-xs:0 2px 6px rgba(8,28,21,.05);
  --shadow-sm:0 4px 16px rgba(8,28,21,.06);
  --shadow-md:0 10px 30px rgba(8,28,21,.09);
  --shadow-lg:0 24px 60px rgba(8,28,21,.14);
  --shadow-primary:0 10px 28px rgba(11,110,79,.22);
  --transition:.28s cubic-bezier(.4,0,.2,1);
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font-body);font-size:16px;line-height:1.75;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit;transition:var(--transition)}
img{max-width:100%;display:block;border:0}
button,input,select,textarea{font-family:inherit;font-size:inherit;line-height:inherit;border:none;outline:none;background:none}
ul,ol{list-style:none}
.container{width:min(1200px,92%);margin-inline:auto}
::selection{background:rgba(11,110,79,.14);color:var(--primary-dark)}
:focus-visible{outline:3px solid rgba(11,110,79,.45);outline-offset:3px;border-radius:4px}

/* ===== Header 杂志频道导航 ===== */
.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.96);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--border);box-shadow:var(--shadow-xs)}
.header-top{border-bottom:1px solid rgba(223,233,228,.6)}
.header-top-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.logo{display:inline-flex;align-items:center;gap:12px;font-size:24px;font-weight:800;color:var(--primary);letter-spacing:-.5px}
.logo-icon{display:flex;align-items:center;justify-content:center;width:42px;height:42px;background:linear-gradient(135deg,var(--primary),var(--primary-dark));color:#fff;border-radius:12px;font-size:18px;box-shadow:var(--shadow-primary)}
.header-search{display:flex;align-items:center;background:var(--bg-soft);border:1px solid var(--border);border-radius:999px;padding:6px 8px 6px 18px;width:280px;transition:var(--transition)}
.header-search:focus-within{border-color:var(--primary);box-shadow:0 0 0 4px rgba(11,110,79,.1)}
.header-search input{flex:1;font-size:14px;background:transparent;color:var(--text);min-width:0}
.header-search button{display:flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;background:var(--primary);color:#fff;font-size:13px;cursor:pointer;transition:var(--transition)}
.header-search button:hover{background:var(--primary-dark);transform:scale(1.05)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;background:var(--bg-soft);border:1px solid var(--border);font-size:18px;color:var(--text);cursor:pointer;align-items:center;justify-content:center;transition:var(--transition)}
.nav-toggle:hover{background:var(--primary-light);color:var(--primary)}
.header-bottom{background:rgba(255,255,255,.9)}
.channel-nav{display:flex;align-items:center;gap:4px;height:56px;overflow-x:auto;scrollbar-width:none}
.channel-nav::-webkit-scrollbar{display:none}
.channel-nav a{display:inline-flex;align-items:center;gap:8px;padding:10px 22px;border-radius:999px;font-size:15px;font-weight:600;color:var(--text-weak);white-space:nowrap;position:relative;transition:var(--transition)}
.channel-nav a i{font-size:14px;opacity:.75;transition:var(--transition)}
.channel-nav a:hover{color:var(--primary);background:var(--primary-lighter)}
.channel-nav a.active{color:var(--primary);background:var(--primary-light);font-weight:700}
.channel-nav a.active::after{content:"";position:absolute;bottom:4px;left:50%;transform:translateX(-50%);width:20px;height:3px;border-radius:3px;background:var(--accent)}

/* ===== Hero 横幅 ===== */
.category-hero{position:relative;padding:120px 0 110px;background:linear-gradient(120deg,var(--primary-deep) 0%,var(--primary-dark) 45%,#12452f 100%);overflow:hidden}
.category-hero::before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;opacity:.28;mix-blend-mode:overlay}
.category-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,35,22,.35) 0%,rgba(5,35,22,.6) 100%)}
.hero-inner{position:relative;z-index:2;text-align:center;max-width:780px;margin-inline:auto}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);backdrop-filter:blur(8px);color:#fff;padding:8px 20px;border-radius:999px;font-size:14px;font-weight:600;margin-bottom:24px;letter-spacing:.5px}
.hero-badge i{color:var(--accent)}
.category-hero h1{font-size:46px;line-height:1.2;color:#fff;font-weight:800;margin-bottom:20px;letter-spacing:-1px}
.category-hero h1 span{color:var(--accent);position:relative;display:inline-block}
.hero-sub{font-size:18px;line-height:1.8;color:rgba(255,255,255,.82);max-width:640px;margin:0 auto 36px}
.hero-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 34px;border-radius:999px;font-size:16px;font-weight:700;transition:var(--transition);cursor:pointer}
.btn i{font-size:15px}
.btn-primary{background:var(--accent);color:var(--dark);box-shadow:0 8px 24px rgba(232,168,56,.3)}
.btn-primary:hover{background:#f4b84c;transform:translateY(-3px);box-shadow:0 14px 36px rgba(232,168,56,.4)}
.btn-outline{border:2px solid rgba(255,255,255,.65);color:#fff;background:rgba(255,255,255,.08)}
.btn-outline:hover{background:rgba(255,255,255,.16);transform:translateY(-3px);border-color:#fff}

/* ===== 频道介绍 ===== */
.section{position:relative;padding:96px 0}
.section-alt{background:var(--bg-soft)}
.section-head{max-width:720px;margin-bottom:56px}
.section-head.center{text-align:center;margin-inline:auto}
.section-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--primary);text-transform:uppercase;letter-spacing:1.5px;margin-bottom:12px}
.section-eyebrow i{color:var(--accent)}
.section-head h2{font-size:36px;line-height:1.25;color:var(--text);font-weight:800;letter-spacing:-.5px;margin-bottom:16px}
.section-head p{font-size:16px;color:var(--text-weak);line-height:1.8}
.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
.intro-copy h2{font-size:38px;font-weight:800;color:var(--text);line-height:1.25;margin-bottom:18px;letter-spacing:-.5px}
.intro-copy h2 span{color:var(--primary)}
.intro-copy>p{font-size:16px;line-height:1.9;color:var(--text-weak);margin-bottom:28px}
.intro-list{display:flex;flex-direction:column;gap:18px;margin-bottom:36px}
.intro-list li{display:flex;align-items:flex-start;gap:14px}
.intro-list li i{width:28px;height:28px;flex-shrink:0;border-radius:8px;background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:13px;margin-top:3px}
.intro-list li strong{display:block;font-size:16px;color:var(--text);font-weight:700;margin-bottom:2px}
.intro-list li span{font-size:14px;color:var(--text-weak);line-height:1.6}
.intro-media{position:relative;border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-lg)}
.intro-media img{width:100%;height:420px;object-fit:cover;transition:transform .6s ease}
.intro-media:hover img{transform:scale(1.04)}
.intro-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 50%,rgba(5,35,22,.55) 100%);pointer-events:none}
.intro-media .media-tag{position:absolute;bottom:22px;left:22px;z-index:2;display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.92);color:var(--primary-dark);padding:8px 18px;border-radius:999px;font-size:13px;font-weight:700;box-shadow:var(--shadow-sm)}
.intro-media .media-tag i{color:var(--accent-dark)}

/* ===== 内容卡片 ===== */
.featured-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.article-card{background:var(--bg);border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow-sm);transition:var(--transition);display:flex;flex-direction:column}
.article-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:var(--border-strong)}
.card-media{position:relative;overflow:hidden;aspect-ratio:16/10}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.article-card:hover .card-media img{transform:scale(1.06)}
.card-badge{position:absolute;top:14px;left:14px;z-index:2;display:inline-flex;align-items:center;gap:6px;background:rgba(5,35,22,.75);backdrop-filter:blur(6px);color:#fff;font-size:12px;font-weight:600;padding:5px 14px;border-radius:999px;letter-spacing:.4px}
.card-badge i{color:var(--accent)}
.card-body{padding:24px 24px 26px;display:flex;flex-direction:column;flex:1}
.card-meta{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--text-weak);margin-bottom:10px}
.card-meta span{display:inline-flex;align-items:center;gap:5px}
.card-meta i{font-size:12px;color:var(--primary)}
.card-body h3{font-size:18px;line-height:1.45;font-weight:700;color:var(--text);margin-bottom:10px}
.card-body h3 a{transition:var(--transition)}
.card-body h3 a:hover{color:var(--primary)}
.card-body p{font-size:14px;line-height:1.7;color:var(--text-weak);margin-bottom:18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-link{margin-top:auto;display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--primary);transition:var(--transition)}
.card-link i{font-size:12px;transition:transform .3s ease}
.card-link:hover{color:var(--primary-dark)}
.card-link:hover i{transform:translateX(4px)}

/* ===== 数据带 ===== */
.stats-band{background:linear-gradient(135deg,var(--primary-deep) 0%,var(--primary-dark) 60%,#0b3d2b 100%);position:relative;overflow:hidden;padding:90px 0}
.stats-band::before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-3.png') center/cover no-repeat;opacity:.12}
.stats-band::after{content:"";position:absolute;top:-120px;right:-80px;width:380px;height:380px;border-radius:50%;background:rgba(232,168,56,.08);filter:blur(60px)}
.stats-grid{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,1fr);gap:36px;text-align:center}
.stat-item{padding:36px 20px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-lg);backdrop-filter:blur(6px);transition:var(--transition)}
.stat-item:hover{transform:translateY(-4px);background:rgba(255,255,255,.1)}
.stat-icon{display:flex;align-items:center;justify-content:center;width:56px;height:56px;margin:0 auto 18px;border-radius:16px;background:rgba(232,168,56,.2);color:var(--accent);font-size:22px}
.stat-num{font-size:40px;font-weight:800;color:#fff;line-height:1.2;letter-spacing:-1px}
.stat-num i{font-style:normal;font-size:20px;color:var(--accent);margin-left:2px}
.stat-label{font-size:14px;color:rgba(255,255,255,.7);margin-top:8px;letter-spacing:.5px}

/* ===== 指南流程 ===== */
.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}
.guide-step{position:relative;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-lg);padding:40px 32px 36px;transition:var(--transition);overflow:hidden}
.guide-step:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:var(--border-strong)}
.guide-step::before{content:"";position:absolute;top:0;left:0;width:100%;height:4px;background:linear-gradient(90deg,var(--primary),var(--accent));transform:scaleX(0);transform-origin:left;transition:transform .4s ease}
.guide-step:hover::before{transform:scaleX(1)}
.step-number{display:inline-flex;align-items:center;justify-content:center;width:56px;height:56px;border-radius:16px;background:var(--primary-light);color:var(--primary);font-size:20px;font-weight:800;margin-bottom:22px;transition:var(--transition)}
.guide-step:hover .step-number{background:var(--primary);color:#fff;box-shadow:var(--shadow-primary)}
.guide-step h3{font-size:20px;font-weight:700;color:var(--text);margin-bottom:12px}
.guide-step p{font-size:14px;line-height:1.8;color:var(--text-weak)}
.guide-step .step-icon{position:absolute;right:-14px;bottom:-14px;font-size:96px;color:rgba(11,110,79,.05);pointer-events:none}

/* ===== FAQ ===== */
.faq-wrap{max-width:820px;margin-inline:auto}
.faq-item{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-md);margin-bottom:14px;overflow:hidden;transition:var(--transition)}
.faq-item:hover{border-color:var(--border-strong)}
.faq-item details summary{cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:22px 28px;font-size:16px;font-weight:600;color:var(--text);transition:var(--transition);user-select:none}
.faq-item details summary::-webkit-details-marker{display:none}
.faq-item details summary .faq-icon{width:28px;height:28px;flex-shrink:0;border-radius:50%;background:var(--bg-soft);display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--text-weak);transition:var(--transition)}
.faq-item details[open] summary{color:var(--primary-dark)}
.faq-item details[open] summary .faq-icon{background:var(--primary);color:#fff;transform:rotate(45deg)}
.faq-answer{padding:0 28px 24px;font-size:14px;line-height:1.9;color:var(--text-weak)}

/* ===== CTA ===== */
.cta-banner{position:relative;padding:96px 0;background:linear-gradient(120deg,#0a2418,var(--primary-dark) 55%,#0b3d2b);overflow:hidden}
.cta-banner::before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;opacity:.18}
.cta-banner::after{content:"";position:absolute;bottom:-100px;left:50%;transform:translateX(-50%);width:600px;height:300px;background:rgba(232,168,56,.12);filter:blur(80px);border-radius:50%}
.cta-inner{position:relative;z-index:2;text-align:center;max-width:700px;margin-inline:auto}
.cta-inner h2{font-size:36px;font-weight:800;color:#fff;line-height:1.3;margin-bottom:16px;letter-spacing:-.5px}
.cta-inner h2 span{color:var(--accent)}
.cta-inner p{font-size:16px;line-height:1.8;color:rgba(255,255,255,.78);margin-bottom:36px}
.cta-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}

/* ===== 页脚 ===== */
.site-footer{background:var(--dark);color:rgba(255,255,255,.75);padding-top:72px}
.footer-main{display:grid;grid-template-columns:2fr 1fr 1.4fr;gap:50px;padding-bottom:50px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand .logo{color:#fff;font-size:22px;margin-bottom:16px}
.footer-brand .logo .logo-icon{background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:var(--dark)}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.6);max-width:360px}
.footer-col h4{font-size:16px;font-weight:700;color:#fff;margin-bottom:22px;letter-spacing:.5px;position:relative;padding-bottom:12px}
.footer-col h4::after{content:"";position:absolute;left:0;bottom:0;width:32px;height:3px;border-radius:3px;background:var(--accent)}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col ul a{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.65);transition:var(--transition)}
.footer-col ul a i{font-size:12px;color:var(--accent);transition:var(--transition)}
.footer-col ul a:hover{color:#fff;padding-left:4px}
.footer-col ul a:hover i{transform:translateX(3px)}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:13px;line-height:1.7;color:rgba(255,255,255,.55);margin-bottom:14px}
.footer-contact li i{width:32px;height:32px;flex-shrink:0;background:rgba(255,255,255,.08);border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:13px;color:var(--accent)}
.footer-bottom{background:rgba(0,0,0,.25)}
.footer-bottom-inner{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;padding:20px 0}
.footer-bottom p{font-size:13px;color:rgba(255,255,255,.5)}
.footer-bottom .beian a{color:rgba(255,255,255,.55);transition:var(--transition)}
.footer-bottom .beian a:hover{color:var(--accent)}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .section{padding:80px 0}
  .category-hero{padding:100px 0 90px}
  .category-hero h1{font-size:38px}
  .featured-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .intro-grid{gap:44px}
  .guide-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .footer-main{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:768px){
  .header-top-inner{height:60px}
  .header-search{display:none}
  .nav-toggle{display:flex}
  .header-bottom{position:absolute;top:100%;left:0;right:0;transform:none;background:#fff;box-shadow:0 20px 40px rgba(8,28,21,.12);max-height:0;overflow:hidden;transition:max-height .4s ease;border-bottom:1px solid var(--border)}
  .header-bottom.open{max-height:340px}
  .channel-nav{flex-direction:column;align-items:flex-start;gap:4px;padding:16px 8%;height:auto}
  .channel-nav a{width:100%;border-radius:12px;padding:14px 18px}
  .channel-nav a.active::after{display:none}
  .category-hero{padding:84px 0 76px}
  .category-hero h1{font-size:30px}
  .hero-sub{font-size:15px}
  .section{padding:64px 0}
  .section-head{margin-bottom:40px}
  .section-head h2{font-size:28px}
  .intro-grid{grid-template-columns:1fr;gap:36px}
  .intro-copy h2{font-size:30px}
  .intro-media img{height:300px}
  .featured-grid{grid-template-columns:1fr}
  .guide-grid{grid-template-columns:1fr}
  .stats-band{padding:64px 0}
  .stat-num{font-size:32px}
  .cta-banner{padding:70px 0}
  .cta-inner h2{font-size:28px}
  .footer-main{grid-template-columns:1fr;gap:32px}
  .footer-bottom-inner{flex-direction:column;text-align:center}
}
@media (max-width:520px){
  .container{width:90%}
  .category-hero{padding:70px 0 64px}
  .category-hero h1{font-size:26px}
  .hero-actions{flex-direction:column;align-items:center}
  .btn{width:100%;max-width:280px}
  .section{padding:56px 0}
  .section-head h2{font-size:24px}
  .intro-copy h2{font-size:26px}
  .stats-grid{grid-template-columns:1fr}
  .guide-step{padding:28px 22px}
  .faq-item details summary{padding:18px 18px;font-size:15px}
  .faq-answer{padding:0 18px 18px}
  .stat-num{font-size:28px}
}