/* roulang page: index */
:root {
  --bg: #F7F3EC;
  --bg-alt: #EFE9DF;
  --primary: #D94A2B;
  --primary-dark: #C13E22;
  --dark: #1B1E23;
  --accent: #2C7A6B;
  --accent-light: rgba(44, 122, 107, .16);
  --gold: #E8B33A;
  --gray: #6B7280;
  --border: #E3DCCF;
  --white: #FFFFFF;
  --text: #25282D;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.06);
  --shadow-hover: 0 12px 28px rgba(0,0,0,.12);
  --transition: .2s ease;
  --container: 1200px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary); }
a:focus-visible, button:focus-visible { outline: 3px solid rgba(217,74,43,.35); outline-offset: 2px; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
h1, h2, h3, h4, h5 { font-weight: 700; line-height: 1.3; margin: 0 0 .6em; color: var(--dark); }
p { margin: 0 0 1em; }
ul { margin: 0; padding: 0; list-style: none; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
  text-align: center;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(217,74,43,.25); }
.btn-primary:active { transform: translateY(0); box-shadow: none; }
.btn-outline { background: transparent; color: var(--primary); border-color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; transform: translateY(-2px); border-color: var(--primary); }
.btn-gold { background: var(--gold); color: #1B1E23; border-color: var(--gold); }
.btn-gold:hover { background: #f0c04d; color: #1B1E23; transform: translateY(-2px); box-shadow: 0 10px 24px rgba(232,179,58,.35); }
.btn-lg { padding: 16px 40px; font-size: 18px; border-radius: var(--radius-md); min-height: 52px; }
.btn-sm { padding: 8px 20px; font-size: 14px; }
.nav-cta { padding: 10px 22px; font-size: 14px; }
.nav-cta-mobile { display: none; }

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
}
.online-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,.92);
  color: var(--dark);
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
}
.online-dot { width: 8px; height: 8px; background: #34C77B; border-radius: 50%; box-shadow: 0 0 0 3px rgba(52,199,123,.2); }

/* ---- 顶部信息条 ---- */
.topbar-strip {
  background: var(--dark);
  color: rgba(255,255,255,.85);
  font-size: 13px;
  padding: 6px 0;
}
.topbar-inner { display: flex; align-items: center; justify-content: space-between; min-height: 32px; }
.topbar-left { display: flex; align-items: center; gap: 8px; }
.topbar-left i { color: var(--gold); }
.countdown-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--white);
  color: var(--dark);
  border: 1.5px solid var(--gold);
  border-radius: 999px;
  padding: 2px 12px;
  font-size: 13px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

/* ---- 主导航 ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: 0 4px 20px rgba(0,0,0,.08); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 72px;
}
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-mark {
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  background: var(--primary);
  color: #fff;
  font-size: 20px; font-weight: 800;
  border-radius: 12px;
  letter-spacing: -.5px;
}
.logo-text { font-size: 20px; font-weight: 800; color: var(--dark); letter-spacing: -.2px; }
.main-nav { display: flex; align-items: center; gap: 20px; }
.nav-list { display: flex; align-items: center; gap: 6px; }
.nav-list a {
  display: inline-block;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  color: var(--dark);
  border-bottom: 2px solid transparent;
  transition: all var(--transition);
}
.nav-list a:hover { color: var(--primary); background: rgba(217,74,43,.06); }
.nav-list li.active a { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; padding: 10px; cursor: pointer; }
.hamburger span { width: 24px; height: 2px; background: var(--dark); border-radius: 2px; transition: all .25s ease; }
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---- Hero ---- */
.hero {
  position: relative;
  padding: 88px 0 76px;
  background: var(--bg);
  background-size: cover;
  background-position: center;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(247,243,236,.97) 0%, rgba(247,243,236,.92) 42%, rgba(247,243,236,.55) 100%);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent-light);
  color: var(--accent);
  font-size: 14px;
  font-weight: 600;
  padding: 8px 18px;
  border-radius: 999px;
  margin-bottom: 18px;
}
.hero h1 {
  font-size: 44px;
  line-height: 1.2;
  color: var(--dark);
  margin-bottom: 16px;
  letter-spacing: -1px;
}
.hero-sub {
  font-size: 18px;
  color: var(--gray);
  margin-bottom: 32px;
  max-width: 440px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 28px; }
.hero-trust { display: flex; flex-wrap: wrap; gap: 10px; }
.trust-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 13px;
  color: var(--dark);
  font-weight: 500;
  box-shadow: var(--shadow-sm);
}
.trust-pill i { color: var(--accent); }
.hero-visual { display: flex; justify-content: center; align-items: center; }
.hero-card {
  position: relative;
  width: 290px;
  aspect-ratio: 9/16;
  border-radius: 24px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,.18);
  transform: rotate(2deg);
  transition: transform .3s ease;
}
.hero-card:hover { transform: rotate(0deg) scale(1.02); }
.hero-card img { width: 100%; height: 100%; object-fit: cover; }
.play-badge {
  position: absolute;
  top: 16px; left: 16px;
  width: 42px; height: 42px;
  background: rgba(255,255,255,.92);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--primary);
  font-size: 16px;
  box-shadow: 0 4px 14px rgba(0,0,0,.2);
}
.hot-tag {
  position: absolute;
  top: 16px; right: 16px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: rgba(27,30,35,.82);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 999px;
  backdrop-filter: blur(4px);
}
.hot-tag i { color: var(--gold); }
.hero-card-gradient {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 45%;
  background: linear-gradient(180deg, transparent, rgba(0,0,0,.78));
}
.hero-card-info { position: absolute; left: 16px; right: 16px; bottom: 16px; color: #fff; z-index: 1; }
.hero-card-title { display: block; font-size: 15px; font-weight: 600; margin-bottom: 6px; line-height: 1.4; }
.hero-card-views { font-size: 13px; opacity: .85; }

/* ---- Section 通用 ---- */
.section { padding: 72px 0; }
.section-alt { background: var(--bg-alt); }
.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 36px;
}
.section-header h2 {
  font-size: 32px;
  margin-bottom: 4px;
  padding-left: 12px;
  border-left: 4px solid var(--primary);
  border-radius: 2px;
}
.section-sub { color: var(--gray); margin: 0; }
.section-link { font-weight: 600; color: var(--primary); display: inline-flex; align-items: center; gap: 6px; }
.section-link:hover { color: var(--primary-dark); }
.section-link i { transition: transform var(--transition); }
.section-link:hover i { transform: translateX(4px); }

/* ---- 热门内容快看 ---- */
.section-hot { background: var(--bg); }
.hot-scroll {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.hot-card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  padding: 10px 10px 16px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}
.hot-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: rgba(217,74,43,.3); }
.hot-cover { position: relative; border-radius: 12px; overflow: hidden; aspect-ratio: 16/10; margin-bottom: 12px; }
.hot-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s ease; }
.hot-card:hover .hot-cover img { transform: scale(1.05); }
.duration {
  position: absolute;
  bottom: 10px; right: 10px;
  background: rgba(0,0,0,.72);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
  font-variant-numeric: tabular-nums;
}
.play-count {
  position: absolute;
  bottom: 10px; left: 10px;
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  text-shadow: 0 1px 4px rgba(0,0,0,.5);
}
.hot-card h3 { font-size: 15px; line-height: 1.5; margin: 0; padding: 0 6px 8px; color: var(--dark); }
.hot-card:hover h3 { color: var(--primary); }

/* ---- 种草清单 ---- */
.section-recommend { background: var(--bg-alt); }
.rec-card {
  display: flex;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  height: 100%;
}
.rec-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); border-color: rgba(44,122,107,.3); }
.rec-cover { width: 40%; min-height: 220px; overflow: hidden; }
.rec-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s ease; }
.rec-card:hover .rec-cover img { transform: scale(1.06); }
.rec-body { flex: 1; padding: 20px 22px; display: flex; flex-direction: column; }
.cat-tag {
  display: inline-block;
  background: var(--accent-light);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  padding: 3px 12px;
  border-radius: 6px;
  margin-bottom: 10px;
  align-self: flex-start;
}
.rec-body h3 { font-size: 18px; line-height: 1.45; margin-bottom: 8px; color: var(--dark); }
.rec-card:hover .rec-body h3 { color: var(--primary); }
.rec-body p { font-size: 14px; color: var(--gray); margin-bottom: 14px; flex: 1; }
.rec-meta { display: flex; align-items: center; gap: 12px; font-size: 12px; color: var(--gray); }
.rec-meta i { margin-right: 3px; color: var(--accent); }
.rec-link { margin-left: auto; color: var(--primary); font-weight: 600; }
.rec-link i { transition: transform var(--transition); }
.rec-card:hover .rec-link i { transform: translateX(4px); }

/* ---- 口碑条 ---- */
.section-reviews { background: var(--bg); }
.reviews-scroll { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.review-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
}
.review-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.review-stars { color: var(--gold); font-size: 16px; letter-spacing: 3px; margin-bottom: 12px; }
.review-card p { font-size: 14px; color: var(--gray); line-height: 1.7; margin-bottom: 16px; }
.review-user { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--gray); }
.avatar {
  width: 30px; height: 30px;
  display: flex; align-items: center; justify-content: center;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: 50%;
  font-size: 13px;
  font-weight: 700;
}

/* ---- 一键跟买 CTA ---- */
.section-cta {
  background: var(--dark);
  background-size: cover;
  background-position: center;
  position: relative;
  padding: 88px 0;
  text-align: center;
}
.section-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(27,30,35,.82);
  pointer-events: none;
}
.cta-inner { position: relative; z-index: 1; }
.cta-inner h2 { font-size: 34px; color: #fff; margin-bottom: 12px; }
.cta-inner p { font-size: 16px; color: rgba(255,255,255,.75); margin-bottom: 32px; }
.cta-actions { margin-bottom: 28px; }
.cta-badges { display: flex; justify-content: center; flex-wrap: wrap; gap: 12px; }
.trust-pill.dark {
  background: rgba(255,255,255,.1);
  border-color: rgba(255,255,255,.2);
  color: rgba(255,255,255,.9);
  backdrop-filter: blur(4px);
}

/* ---- 最新资讯 ---- */
.section-news { background: var(--bg); }
.news-featured {
  display: block;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  padding: 14px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition);
  height: 100%;
}
.news-featured:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.news-featured-img { border-radius: 12px; overflow: hidden; aspect-ratio: 16/9; margin-bottom: 14px; }
.news-featured-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s ease; }
.news-featured:hover .news-featured-img img { transform: scale(1.04); }
.news-featured h3 { font-size: 20px; line-height: 1.4; margin-bottom: 8px; }
.news-featured:hover h3 { color: var(--primary); }
.news-featured p { font-size: 14px; color: var(--gray); margin-bottom: 12px; }
.news-featured-meta { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--gray); }
.news-list-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  margin-bottom: 12px;
  transition: all var(--transition);
}
.news-list-item:hover { border-color: rgba(217,74,43,.35); box-shadow: var(--shadow-sm); transform: translateX(4px); }
.news-list-main { flex: 1; min-width: 0; }
.news-list-main h4 { font-size: 16px; line-height: 1.4; margin-bottom: 4px; transition: color var(--transition); }
.news-list-item:hover .news-list-main h4 { color: var(--primary); }
.news-list-main p { font-size: 13px; color: var(--gray); margin: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.news-date { font-size: 12px; color: var(--gray); font-variant-numeric: tabular-nums; display: inline-block; margin-right: 10px; }
.news-cat-tag {
  display: inline-block;
  background: var(--accent-light);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 6px;
}
.news-arrow { color: var(--primary); font-size: 14px; margin-top: 20px; transition: transform var(--transition); }
.news-list-item:hover .news-arrow { transform: translateX(4px); }
.empty-state {
  background: var(--bg-alt);
  border: 1px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 48px 24px;
  text-align: center;
  color: var(--gray);
  font-size: 15px;
}
.empty-state i { font-size: 36px; color: #C9C0B2; display: block; margin-bottom: 12px; }

/* ---- FAQ ---- */
.section-faq { background: var(--bg-alt); }
.faq-intro { color: var(--gray); max-width: 360px; }
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
}
.faq-item.active { border-left: 4px solid var(--primary); box-shadow: var(--shadow-sm); }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: none;
  border: none;
  padding: 18px 20px;
  font-size: 16px;
  font-weight: 600;
  color: var(--dark);
  cursor: pointer;
  text-align: left;
  transition: background var(--transition);
}
.faq-question:hover { background: rgba(247,243,236,.5); }
.faq-icon {
  width: 28px; height: 28px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-light);
  border-radius: 50%;
  color: var(--accent);
  font-size: 14px;
  transition: transform .25s ease;
}
.faq-item.active .faq-icon { transform: rotate(45deg); background: var(--primary); color: #fff; }
.faq-answer { display: none; padding: 0 20px 20px; }
.faq-answer p { margin: 0; font-size: 15px; color: var(--gray); line-height: 1.75; }

/* ---- 页脚 ---- */
.site-footer { background: var(--dark); color: rgba(255,255,255,.7); padding: 64px 0 0; }
.footer-grid { padding-bottom: 40px; }
.footer-logo { font-size: 22px; font-weight: 800; color: #fff; margin-bottom: 14px; }
.footer-logo::before { content: "K"; display: inline-flex; width: 30px; height: 30px; margin-right: 6px; align-items: center; justify-content: center; background: var(--primary); color: #fff; border-radius: 8px; font-size: 16px; vertical-align: middle; }
.site-footer h4 { color: #fff; font-size: 16px; margin-bottom: 16px; }
.site-footer ul li { margin-bottom: 8px; }
.site-footer ul a { color: rgba(255,255,255,.65); transition: color var(--transition); }
.site-footer ul a:hover { color: #fff; }
.footer-contact li { display: flex; align-items: center; gap: 8px; }
.footer-contact i { color: var(--gold); width: 16px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 20px 0;
  text-align: center;
  font-size: 14px;
  color: rgba(255,255,255,.4);
}
.footer-bottom p { margin: 0; }

/* ---- 响应式 ---- */
@media screen and (max-width: 64em) {
  .hot-scroll { grid-template-columns: repeat(2, 1fr); }
  .reviews-scroll { grid-template-columns: repeat(2, 1fr); }
}
@media screen and (max-width: 40em) {
  .section { padding: 48px 0; }
  .topbar-left { font-size: 12px; }
  .topbar-right .online-pill { display: none; }
  .logo-text { font-size: 18px; }
  .header-inner { min-height: 62px; }
  .nav-cta { display: none !important; }
  .hamburger { display: flex; }
  .main-nav {
    display: none;
    position: absolute;
    top: 62px;
    left: 0; right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px 24px;
    flex-direction: column;
    align-items: flex-start;
    box-shadow: 0 20px 30px rgba(0,0,0,.1);
  }
  .main-nav.open { display: flex; }
  .nav-list { flex-direction: column; align-items: flex-start; width: 100%; gap: 4px; }
  .nav-list a { display: block; width: 100%; padding: 14px 8px; font-size: 18px; border-bottom: 1px solid rgba(0,0,0,.05); }
  .nav-list li.active a { border-bottom-color: var(--primary); }
  .nav-cta-mobile { display: inline-flex; width: 100%; margin-top: 14px; }
  .hero { padding: 52px 0 48px; }
  .hero h1 { font-size: 32px; line-height: 1.25; }
  .hero-sub { font-size: 16px; }
  .hero-actions .btn { width: 100%; }
  .hero-card { width: 240px; }
  .hero-visual { margin-top: 40px; }
  .section-header { flex-direction: column; align-items: flex-start; gap: 8px; }
  .section-header h2 { font-size: 26px; }
  .hot-scroll { display: flex; overflow-x: auto; gap: 16px; scroll-snap-type: x mandatory; padding-bottom: 8px; }
  .hot-card { flex: 0 0 210px; scroll-snap-align: start; }
  .rec-card { flex-direction: column; height: auto; }
  .rec-cover { width: 100%; min-height: 180px; }
  .rec-body { padding: 16px; }
  .reviews-scroll { display: flex; overflow-x: auto; gap: 16px; scroll-snap-type: x mandatory; }
  .review-card { flex: 0 0 260px; scroll-snap-align: start; }
  .section-cta { padding: 56px 0; }
  .cta-inner h2 { font-size: 26px; }
  .cta-inner p { font-size: 15px; }
  .cta-actions .btn { width: 100%; }
  .section-faq .grid-x .cell + .cell { margin-top: 28px; }
  .site-footer { padding-top: 48px; }
  .footer-grid .cell { margin-bottom: 28px; }
}
@media screen and (max-width: 30em) {
  .hot-card { flex: 0 0 180px; }
  .hero-actions .btn { font-size: 15px; padding: 14px 24px; }
}

/* roulang page: category1 */
:root {
  --bg: #F7F3EC;
  --bg-alt: #EFE9DF;
  --primary: #D94A2B;
  --primary-dark: #C13E22;
  --dark: #1B1E23;
  --accent: #2C7A6B;
  --accent-soft: rgba(44, 122, 107, 0.12);
  --gold: #E8B33A;
  --gray: #6B7280;
  --border: #E3DCCF;
  --white: #FFFFFF;
  --radius-lg: 16px;
  --radius-sm: 10px;
  --radius-btn: 8px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, .06);
  --shadow-hover: 0 12px 28px rgba(0, 0, 0, .12);
  --transition: .2s ease;
  --container: 1200px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--dark);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-dark); text-decoration: underline; }
ul, ol { list-style: none; }
button, input, textarea { font-family: inherit; font-size: inherit; }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: 72px 0; }

/* ---------- Header & Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 243, 236, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: 0 2px 12px rgba(0,0,0,0.08); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--primary);
  color: #fff;
  font-size: 22px;
  font-weight: 800;
  border-radius: 10px;
  letter-spacing: -1px;
  box-shadow: inset 0 -2px 0 rgba(0,0,0,.12);
}
.logo-text {
  font-size: 20px;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: 1px;
  white-space: nowrap;
}
.logo-text:hover { text-decoration: none; color: var(--dark); }
.main-nav { display: flex; align-items: center; justify-content: flex-end; flex: 1; gap: 12px; }
.nav-list { display: flex; align-items: center; gap: 8px; }
.nav-list li a {
  display: block;
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--dark);
  transition: all var(--transition);
  position: relative;
}
.nav-list li a:hover {
  color: var(--primary);
  text-decoration: none;
  background: rgba(217, 74, 43, 0.06);
}
.nav-list li.active a {
  color: var(--primary);
  font-weight: 700;
  background: rgba(217, 74, 43, 0.08);
}
.nav-list li.active a::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 16px;
  right: 16px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}
.header-actions { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.nav-cta, .nav-cta-mobile { white-space: nowrap; }
.nav-cta-mobile { display: none; }
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--white);
  cursor: pointer;
}
.hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--dark);
  border-radius: 2px;
  transition: transform .25s ease, opacity .25s ease;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius-btn);
  padding: 12px 28px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  cursor: pointer;
  border: 1.5px solid transparent;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  text-decoration: none;
  box-shadow: 0 6px 18px rgba(217, 74, 43, .25);
  transform: translateY(-1px);
}
.btn-primary:active { transform: translateY(1px); box-shadow: none; }
.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--primary);
}
.btn-outline:hover {
  background: rgba(217, 74, 43, .06);
  color: var(--primary-dark);
  text-decoration: none;
}
.btn-dark {
  background: var(--dark);
  color: #fff;
}
.btn-dark:hover {
  background: #2a2e35;
  color: #fff;
  text-decoration: none;
  box-shadow: 0 6px 18px rgba(0,0,0,.2);
}
.btn-sm { padding: 8px 20px; font-size: 14px; }
.btn-lg { padding: 16px 38px; font-size: 17px; }
.btn-block { width: 100%; }
.btn:focus-visible, a:focus-visible, button:focus-visible {
  outline: 3px solid rgba(217, 74, 43, .35);
  outline-offset: 2px;
}

/* ---------- Hero Banner ---------- */
.cat-banner {
  position: relative;
  padding: 88px 0 96px;
  background: linear-gradient(135deg, #14161A 0%, #23262C 55%, #2E3138 100%);
  color: #fff;
  overflow: hidden;
}
.cat-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-position: center;
  background-size: cover;
  opacity: .18;
  pointer-events: none;
}
.cat-banner::after {
  content: '';
  position: absolute;
  width: 320px;
  height: 320px;
  right: -80px;
  top: -80px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(217,74,43,.28) 0%, transparent 70%);
  pointer-events: none;
}
.banner-inner {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
}
.cat-banner h1 {
  font-size: 40px;
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 14px;
  letter-spacing: 2px;
}
.cat-banner h1 .highlight { color: var(--gold); }
.cat-banner .lead {
  font-size: 17px;
  line-height: 1.7;
  color: rgba(255,255,255,.78);
  max-width: 640px;
}
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: rgba(255,255,255,.55);
  margin-bottom: 20px;
}
.breadcrumb a { color: rgba(255,255,255,.75); }
.breadcrumb a:hover { color: var(--gold); text-decoration: none; }
.breadcrumb span { color: var(--gold); }

/* ---------- Intro Section ---------- */
.intro-section { padding: 72px 0 40px; }
.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.intro-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  position: relative;
}
.intro-media img {
  width: 100%;
  height: 340px;
  object-fit: cover;
  transition: transform .6s ease;
}
.intro-media:hover img { transform: scale(1.03); }
.intro-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,.14), transparent 40%);
  pointer-events: none;
}
.intro-content h2 {
  font-size: 30px;
  font-weight: 800;
  margin-bottom: 16px;
  padding-left: 14px;
  border-left: 4px solid var(--primary);
  line-height: 1.3;
}
.intro-content p {
  color: var(--gray);
  margin-bottom: 20px;
  font-size: 15px;
}
.intro-points li {
  display: flex;
  gap: 12px;
  padding: 10px 0;
  color: var(--dark);
  font-size: 15px;
  align-items: flex-start;
}
.intro-points li::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
  margin-top: 9px;
}
.intro-stats {
  display: flex;
  gap: 32px;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.intro-stats .stat-num {
  font-size: 28px;
  font-weight: 800;
  color: var(--primary);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}
.intro-stats .stat-label {
  font-size: 13px;
  color: var(--gray);
  margin-top: 4px;
}

/* ---------- Section Titles ---------- */
.section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 40px;
}
.section-title h2 {
  font-size: 30px;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 14px;
}
.section-title h2::before {
  content: '';
  width: 4px;
  height: 30px;
  background: var(--primary);
  border-radius: 4px;
}
.section-title .sub-line {
  font-size: 14px;
  color: var(--gray);
}
.section-link {
  font-size: 14px;
  font-weight: 600;
}

/* ---------- Content Cards ---------- */
.cat-card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.cat-card {
  display: flex;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.cat-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(217, 74, 43, .25);
}
.cat-card-img {
  width: 40%;
  flex-shrink: 0;
  overflow: hidden;
  position: relative;
  min-height: 200px;
}
.cat-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
  transition: transform .4s ease;
}
.cat-card:hover .cat-card-img img { transform: scale(1.06); }
.cat-card-body {
  padding: 22px 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 12px;
}
.cat-card-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  align-self: flex-start;
  padding: 4px 12px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 12px;
  font-weight: 600;
  border-radius: 8px;
}
.cat-card-body h3 {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  margin: 0;
}
.cat-card-body h3 a { color: var(--dark); }
.cat-card-body h3 a:hover { color: var(--primary); text-decoration: none; }
.cat-card-body p {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.65;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.cat-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--gray);
  border-top: 1px solid rgba(227, 220, 207, .5);
  padding-top: 12px;
}
.cat-card-meta .arrow-link {
  color: var(--primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.cat-card-meta .arrow-link:hover { text-decoration: none; color: var(--primary-dark); }

/* ---------- Sidebar ---------- */
.cat-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 40px;
  align-items: start;
}
.content-main { min-width: 0; }
.sidebar-stack {
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: sticky;
  top: 96px;
}
.side-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}
.side-card h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--border);
  position: relative;
}
.side-card h4::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 36px;
  height: 2px;
  background: var(--primary);
}
.side-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.side-tags a {
  padding: 5px 14px;
  border-radius: 999px;
  background: var(--bg);
  border: 1px solid var(--border);
  font-size: 13px;
  color: var(--dark);
  transition: all var(--transition);
}
.side-tags a:hover {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: rgba(44, 122, 107, .3);
  text-decoration: none;
}
.side-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 10px 0;
  border-bottom: 1px dashed rgba(227, 220, 207, .7);
  font-size: 14px;
  line-height: 1.5;
}
.side-list li:last-child { border-bottom: none; }
.side-list li i {
  color: var(--accent);
  margin-top: 4px;
  font-size: 12px;
}
.side-list li a { color: var(--dark); }
.side-list li a:hover { color: var(--primary); text-decoration: none; }
.side-rec li {
  padding: 8px 0;
  display: flex;
  align-items: center;
  gap: 10px;
}
.side-rec li a {
  font-size: 14px;
  color: var(--dark);
  line-height: 1.5;
}
.side-rec li a:hover { color: var(--primary); text-decoration: none; }
.side-rec .num {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  background: var(--bg-alt);
  color: var(--gray);
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ---------- Process Section ---------- */
.process-section {
  background: var(--bg-alt);
}
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  margin-top: 40px;
}
.process-step {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 28px 22px;
  text-align: center;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: transform var(--transition), box-shadow var(--transition);
}
.process-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.process-step .step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  font-size: 18px;
  margin-bottom: 14px;
}
.process-step h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}
.process-step p {
  font-size: 13px;
  color: var(--gray);
  line-height: 1.6;
  margin-bottom: 0;
}
.process-step::after {
  content: '';
  position: absolute;
  top: 50%;
  right: -18px;
  width: 8px;
  height: 8px;
  border-top: 2px solid var(--primary);
  border-right: 2px solid var(--primary);
  transform: translateY(-50%) rotate(45deg);
  opacity: .4;
}
.process-step:last-child::after { display: none; }

/* ---------- FAQ ---------- */
.faq-section { padding: 72px 0; }
.faq-grid {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 56px;
  align-items: start;
}
.faq-intro h2 {
  font-size: 30px;
  font-weight: 800;
  margin-bottom: 18px;
  padding-left: 14px;
  border-left: 4px solid var(--primary);
}
.faq-intro p {
  color: var(--gray);
  font-size: 15px;
}
.faq-list .faq-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.faq-item.active {
  border-color: rgba(217, 74, 43, .35);
  box-shadow: var(--shadow-sm);
  border-left: 3px solid var(--primary);
}
.faq-q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  font-size: 15px;
  font-weight: 600;
  color: var(--dark);
  cursor: pointer;
  user-select: none;
  background: transparent;
  border: none;
  width: 100%;
  text-align: left;
  gap: 16px;
}
.faq-q:hover { color: var(--primary); }
.faq-q .faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform .25s ease, background .2s ease, color .2s ease;
  font-size: 13px;
}
.faq-item.active .faq-icon {
  transform: rotate(180deg);
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.faq-a {
  padding: 0 22px;
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease, padding .3s ease;
}
.faq-item.active .faq-a {
  max-height: 400px;
  padding-bottom: 20px;
}
.faq-a p {
  font-size: 14px;
  color: var(--gray);
  border-top: 1px solid rgba(227, 220, 207, .5);
  padding-top: 14px;
  margin: 0;
}

/* ---------- CTA Strip ---------- */
.cta-strip {
  background: var(--dark);
  border-radius: var(--radius-lg);
  padding: 48px 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  background-image: url('/assets/images/backpic/back-3.webp');
  background-size: cover;
  background-position: center;
  position: relative;
  overflow: hidden;
}
.cta-strip::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(27,30,35,.92) 20%, rgba(27,30,35,.72) 100%);
}
.cta-strip-content {
  position: relative;
  z-index: 2;
}
.cta-strip h2 {
  color: #fff;
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}
.cta-strip p {
  color: rgba(255,255,255,.7);
  font-size: 15px;
  margin: 0;
}
.cta-strip .btn {
  position: relative;
  z-index: 2;
  flex-shrink: 0;
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,.72);
  margin-top: 72px;
  padding: 64px 0 0;
  font-size: 14px;
}
.footer-grid { margin-bottom: 40px; }
.footer-logo {
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 1px;
  margin-bottom: 12px;
}
.site-footer h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
}
.site-footer ul li { margin-bottom: 10px; }
.site-footer ul li a { color: rgba(255,255,255,.65); }
.site-footer ul li a:hover { color: #fff; text-decoration: none; }
.footer-contact li i { color: var(--gold); margin-right: 8px; width: 16px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 22px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,.4);
}
.footer-bottom p { margin: 0; }
.site-footer .btn-primary { background: var(--primary); }
.site-footer .btn-primary:hover { background: var(--primary-dark); }

/* ---------- Empty State (for reference consistency) ---------- */
.empty-state {
  background: var(--bg-alt);
  border-radius: var(--radius-lg);
  padding: 60px 40px;
  text-align: center;
  color: var(--gray);
}
.empty-state i {
  font-size: 40px;
  color: rgba(107,114,128,.4);
  margin-bottom: 12px;
}

/* ---------- Responsive ---------- */
@media (max-width: 64em) {
  .cat-layout { grid-template-columns: 1fr; }
  .sidebar-stack { position: static; flex-direction: row; flex-wrap: wrap; }
  .side-card { flex: 1; min-width: 200px; }
  .process-steps { grid-template-columns: 1fr 1fr; }
  .process-step::after { display: none; }
}
@media (max-width: 40em) {
  .section { padding: 48px 0; }
  .header-inner { height: 64px; }
  .logo-text { font-size: 17px; }
  .nav-list {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg);
    flex-direction: column;
    padding: 20px 24px 32px;
    gap: 4px;
    box-shadow: 0 12px 24px rgba(0,0,0,.1);
    transform: translateY(-16px);
    opacity: 0;
    pointer-events: none;
    transition: all .25s ease;
    border-bottom: 1px solid var(--border);
  }
  .nav-list.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav-list li { width: 100%; }
  .nav-list li a {
    padding: 14px 20px;
    font-size: 18px;
    border-radius: 10px;
  }
  .nav-list li.active a::after { display: none; }
  .nav-cta { display: none; }
  .nav-cta-mobile {
    display: inline-flex;
    margin-top: 16px;
    width: 100%;
  }
  .hamburger { display: flex; }
  .cat-banner { padding: 56px 0 64px; }
  .cat-banner h1 { font-size: 30px; }
  .banner-inner { flex-direction: column; align-items: flex-start; gap: 20px; }
  .intro-grid { grid-template-columns: 1fr; gap: 32px; }
  .intro-media img { height: 240px; }
  .intro-stats { gap: 20px; }
  .cat-card-grid { grid-template-columns: 1fr; }
  .cat-card-img { min-height: 180px; }
  .section-title { flex-direction: column; align-items: flex-start; gap: 8px; }
  .section-title h2 { font-size: 26px; }
  .process-steps { grid-template-columns: 1fr; }
  .faq-grid { grid-template-columns: 1fr; gap: 32px; }
  .cta-strip { flex-direction: column; padding: 36px 28px; text-align: center; }
  .cta-strip .btn { width: 100%; }
  .footer-grid { gap: 24px; }
}
@media (min-width: 41em) and (max-width: 64em) {
  .cat-banner h1 { font-size: 36px; }
  .intro-grid { gap: 36px; }
  .cat-card-img { min-height: 180px; }
  .process-step::after { display: none; }
  .footer-grid { gap: 24px; }
}

/* roulang page: article */
:root {
  --bg: #F7F3EC;
  --bg-alt: #EFE9DF;
  --primary: #D94A2B;
  --primary-dark: #C03E1F;
  --primary-light: rgba(217, 74, 43, .12);
  --dark: #1B1E23;
  --accent: #2C7A6B;
  --accent-light: rgba(44, 122, 107, .14);
  --gold: #E8B33A;
  --gold-light: rgba(232, 179, 58, .16);
  --gray: #6B7280;
  --gray-dark: #4B5563;
  --border: #E3DCCF;
  --white: #FFFFFF;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.06);
  --shadow-hover: 0 12px 28px rgba(0,0,0,.12);
  --transition: .2s ease;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--dark);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-dark); text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }
button, input, select, textarea { font-family: inherit; font-size: inherit; line-height: inherit; color: inherit; }
ul, ol, li { list-style: none; }

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

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  padding: 14px 28px;
  font-size: 15px;
  line-height: 1.2;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none!important;
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 2px 8px rgba(217,74,43,.28);
}
.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(217,74,43,.38);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 4px rgba(217,74,43,.2);
}
.btn-outline {
  background: #fff;
  border-color: var(--primary);
  color: var(--primary);
}
.btn-outline:hover {
  background: var(--primary-light);
  color: var(--primary-dark);
  border-color: var(--primary-dark);
}
.btn-sm { padding: 10px 18px; font-size: 14px; }
.btn-lg { padding: 18px 40px; font-size: 17px; height: auto; min-height: 52px; }
.btn:focus-visible, a:focus-visible, button:focus-visible {
  outline: 3px solid rgba(217,74,43,.35);
  outline-offset: 2px;
}

/* ---------- Header / Nav ---------- */
.site-header {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: box-shadow var(--transition);
}
.site-header.scrolled {
  box-shadow: 0 4px 20px rgba(0,0,0,.08);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 20px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none!important;
  flex-shrink: 0;
}
.logo-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--primary);
  color: #fff;
  font-weight: 800;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(217,74,43,.3);
}
.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--dark);
  letter-spacing: .5px;
}
.logo:hover .logo-text { color: var(--primary); }

.main-nav { display: flex; align-items: center; gap: 10px; }
.nav-list { display: flex; align-items: center; gap: 4px; margin: 0; padding: 0; }
.nav-list > li { position: relative; }
.nav-list > li > a {
  display: block;
  padding: 10px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--dark);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  position: relative;
}
.nav-list > li > a:hover {
  color: var(--primary);
  background: var(--primary-light);
  text-decoration: none;
}
.nav-list > li.active > a {
  color: var(--primary);
  font-weight: 600;
}
.nav-list > li.active > a::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 16px;
  right: 16px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

.nav-cta {
  margin-left: 8px;
  padding: 10px 22px;
  font-size: 14px;
}
.header-actions { display: flex; align-items: center; gap: 8px; }
.nav-cta-mobile { display: none; }

.hamburger {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #fff;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  transition: all var(--transition);
}
.hamburger:hover { border-color: var(--primary); }
.hamburger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--dark);
  border-radius: 2px;
  transition: all .25s ease;
}
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Breadcrumb ---------- */
.breadcrumb {
  padding: 28px 0 12px;
  font-size: 14px;
  color: var(--gray);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}
.breadcrumb a {
  color: var(--gray);
  text-decoration: none;
  transition: color var(--transition);
}
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb .sep { color: #C7C0B4; }
.breadcrumb .current {
  color: var(--dark);
  font-weight: 500;
  max-width: 380px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ---------- Article Hero ---------- */
.article-hero {
  padding: 40px 0 32px;
}
.article-hero-inner {
  background: linear-gradient(135deg, var(--bg-alt) 0%, var(--bg) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px 56px;
  position: relative;
  overflow: hidden;
}
.article-hero-inner::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 4px;
  background: var(--primary);
}
.article-title {
  font-size: 38px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--dark);
  margin: 0 0 18px;
  letter-spacing: .5px;
}
.article-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 22px;
  font-size: 14px;
  color: var(--gray);
}
.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.article-meta i { color: var(--accent); font-size: 15px; }

/* ---------- Article Body ---------- */
.article-body {
  max-width: 860px;
  margin: 0 auto;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 48px 56px;
  box-shadow: var(--shadow-sm);
}

.article-excerpt {
  background: var(--bg);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 18px 24px;
  margin-bottom: 36px;
  font-size: 16px;
  line-height: 1.7;
  color: var(--gray-dark);
}

.article-content {
  font-size: 16px;
  line-height: 1.9;
  color: #333;
}
.article-content p {
  margin-bottom: 24px;
}
.article-content h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--dark);
  margin: 42px 0 18px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--border);
}
.article-content h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--dark);
  margin: 34px 0 14px;
}
.article-content h4 {
  font-size: 17px;
  font-weight: 600;
  color: var(--dark);
  margin: 26px 0 12px;
}
.article-content img {
  width: 100%;
  border-radius: 12px;
  margin: 28px 0;
  box-shadow: var(--shadow-sm);
}
.article-content blockquote {
  border-left: 4px solid var(--accent);
  background: var(--accent-light);
  padding: 18px 24px;
  margin: 28px 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-style: italic;
  color: var(--gray-dark);
}
.article-content ul, .article-content ol {
  margin: 20px 0 24px;
  padding-left: 24px;
}
.article-content ul { list-style: disc; }
.article-content ol { list-style: decimal; }
.article-content li {
  margin-bottom: 10px;
  line-height: 1.8;
}
.article-content a {
  font-weight: 500;
}
.article-content code {
  background: var(--bg-alt);
  border-radius: 6px;
  padding: 2px 8px;
  font-size: .92em;
  font-family: "SFMono-Regular", Consolas, monospace;
}

/* ---------- Tags ---------- */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 36px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}
.tag-chip {
  display: inline-block;
  padding: 7px 16px;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  transition: all var(--transition);
}
.tag-chip:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-1px);
}

/* ---------- Article Pagination ---------- */
.article-pagination {
  max-width: 860px;
  margin: 40px auto 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.page-link {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 24px;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  text-decoration: none!important;
  transition: all var(--transition);
}
.page-link:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}
.page-link .label {
  font-size: 13px;
  color: var(--gray);
  display: flex;
  align-items: center;
  gap: 6px;
}
.page-link .title {
  font-size: 15px;
  font-weight: 600;
  color: var(--dark);
  line-height: 1.4;
}
.page-link:hover .title { color: var(--primary); }
.page-link.next { text-align: right; }
.page-link.next .label { justify-content: flex-end; }

/* ---------- Related Section ---------- */
.related-section {
  padding: 72px 0 80px;
}
.related-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 32px;
}
.related-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--dark);
  border-left: 4px solid var(--primary);
  padding-left: 16px;
  line-height: 1.3;
}
.related-more a {
  font-size: 15px;
  color: var(--accent);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.related-more a:hover {
  color: var(--primary);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.related-card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  text-decoration: none!important;
}
.related-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
  border-color: var(--primary);
}
.related-card .card-img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  background: var(--bg-alt);
}
.related-card .card-body {
  padding: 22px 24px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.related-card .card-tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--accent-light);
  color: var(--accent);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  margin-bottom: 12px;
  align-self: flex-start;
}
.related-card .card-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--dark);
  line-height: 1.45;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-card:hover .card-title { color: var(--primary); }
.related-card .card-summary {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 14px;
  flex: 1;
}
.related-card .card-link {
  font-size: 14px;
  color: var(--primary);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 6px;
}
.related-card .card-link i { transition: transform var(--transition); }
.related-card:hover .card-link i { transform: translateX(4px); }

/* ---------- Not Found ---------- */
.not-found {
  max-width: 620px;
  margin: 0 auto;
  text-align: center;
  padding: 72px 24px;
}
.not-found-icon {
  width: 88px;
  height: 88px;
  margin: 0 auto 24px;
  background: var(--bg-alt);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  color: var(--gray);
}
.not-found h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
}
.not-found p {
  font-size: 16px;
  color: var(--gray);
  margin-bottom: 28px;
}

/* ---------- Section spacing ---------- */
.section-block { padding: 72px 0; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,.72);
  padding: 64px 0 0;
  margin-top: 40px;
}
.footer-grid {
  row-gap: 32px;
}
.footer-logo {
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}
.footer-grid p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255,255,255,.6);
}
.footer-grid h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 18px;
}
.footer-grid ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-grid ul li {
  margin-bottom: 10px;
}
.footer-grid ul li a {
  color: rgba(255,255,255,.65);
  text-decoration: none;
  font-size: 14px;
  transition: color var(--transition);
}
.footer-grid ul li a:hover {
  color: var(--gold);
  text-decoration: underline;
}
.footer-contact li {
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,.65);
}
.footer-contact i {
  color: var(--gold);
  width: 20px;
  text-align: center;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 24px 0;
  margin-top: 48px;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,.45);
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .article-hero-inner { padding: 40px 36px; }
  .article-body { padding: 40px 36px; }
}

@media (max-width: 768px) {
  .header-inner { height: 64px; }
  .main-nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 280px;
    background: var(--bg);
    box-shadow: -4px 0 24px rgba(0,0,0,.1);
    transform: translateX(100%);
    transition: transform .25s ease;
    flex-direction: column;
    justify-content: flex-start;
    padding: 80px 24px 30px;
    z-index: 999;
    gap: 20px;
    align-items: flex-start;
  }
  .main-nav.open { transform: translateX(0); }
  .nav-list { flex-direction: column; width: 100%; align-items: stretch; gap: 4px; }
  .nav-list > li > a {
    font-size: 17px;
    padding: 14px 10px;
    border-radius: var(--radius-sm);
  }
  .nav-list > li.active > a::after { display: none; }
  .nav-list > li.active > a { background: var(--primary-light); }
  .hamburger { display: flex; }
  .nav-cta { display: none; }
  .nav-cta-mobile {
    display: inline-flex;
    width: 100%;
    margin-top: auto;
  }
  .header-actions { margin-left: auto; }
  
  .article-hero-inner { padding: 32px 24px; }
  .article-title { font-size: 30px; }
  .article-meta { gap: 14px; }
  .article-body { padding: 32px 22px; border-radius: 12px; }
  .related-grid { grid-template-columns: 1fr; }
  .article-pagination { grid-template-columns: 1fr; }
  .related-title { font-size: 26px; }
  .section-block { padding: 48px 0; }
  .related-section { padding: 48px 0; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .logo-text { font-size: 17px; }
  .logo-mark { width: 36px; height: 36px; font-size: 17px; border-radius: 10px; }
  .article-title { font-size: 26px; line-height: 1.35; }
  .article-meta { font-size: 13px; gap: 10px; flex-wrap: wrap; }
  .article-hero-inner { padding: 28px 18px; }
  .article-body { padding: 24px 18px; }
  .article-content { font-size: 15px; line-height: 1.85; }
  .article-content p { margin-bottom: 20px; }
  .article-content h2 { font-size: 22px; margin-top: 34px; }
  .article-content h3 { font-size: 18px; margin-top: 28px; }
  .article-tags { gap: 8px; margin-top: 28px; padding-top: 22px; }
  .tag-chip { padding: 5px 12px; font-size: 12px; }
  .page-link { padding: 16px 18px; }
  .page-link .title { font-size: 14px; }
  .breadcrumb { font-size: 13px; padding-top: 20px; }
  .related-card .card-img { height: 160px; }
  .related-header { flex-direction: column; gap: 8px; align-items: flex-start; }
  .footer-grid { row-gap: 28px; }
  .site-footer { padding-top: 48px; }
}

/* roulang page: category2 */
:root {
  --bg: #F7F3EC;
  --bg-alt: #EFE9DF;
  --primary: #D94A2B;
  --primary-dark: #BD3B20;
  --dark: #1B1E23;
  --accent: #2C7A6B;
  --accent-light: rgba(44, 122, 107, 0.12);
  --gold: #E8B33A;
  --gray: #6B7280;
  --border: #E3DCCF;
  --white: #FFFFFF;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 12px 28px rgba(0, 0, 0, 0.12);
  --transition: 0.2s ease;
  --font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.75;
  color: var(--dark);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

ul, ol {
  list-style: none;
}

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

input, textarea {
  font-family: inherit;
}

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

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  text-decoration: none;
  border: 1.5px solid transparent;
  min-height: 48px;
}

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

.btn-primary:hover {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
  color: #fff;
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(217, 74, 43, 0.3);
}

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

.btn-outline {
  background-color: transparent;
  color: var(--primary);
  border-color: var(--primary);
}

.btn-outline:hover {
  background-color: var(--primary);
  color: #fff;
  text-decoration: none;
}

.btn-light {
  background-color: #fff;
  color: var(--dark);
  border-color: #fff;
}

.btn-light:hover {
  background-color: var(--bg-alt);
  color: var(--dark);
  text-decoration: none;
}

.btn-sm {
  padding: 10px 20px;
  min-height: 40px;
  font-size: 14px;
}

.btn-lg {
  padding: 18px 40px;
  font-size: 17px;
}

/* ===== 徽章/标签 ===== */
.badge-countdown {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #fff;
  border: 1px solid var(--gold);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--dark);
  font-variant-numeric: tabular-nums;
}

.status-online {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent);
  color: #fff;
  border-radius: 999px;
  padding: 4px 14px;
  font-size: 13px;
  font-weight: 500;
}

.status-online::before {
  content: '';
  width: 6px;
  height: 6px;
  background: #fff;
  border-radius: 50%;
  animation: pulse 1.6s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.tag {
  display: inline-block;
  background: var(--accent-light);
  color: var(--accent);
  font-size: 13px;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: var(--radius-sm);
  line-height: 1.4;
}

.tag-gold {
  background: rgba(232, 179, 58, 0.15);
  color: #B47C10;
}

.tag-red {
  background: rgba(217, 74, 43, 0.1);
  color: var(--primary);
}

.tag-dark {
  background: rgba(27, 30, 35, 0.85);
  color: #fff;
}

/* ===== 顶部活动条 ===== */
.top-bar {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.85);
  font-size: 13px;
  padding: 6px 0;
}

.top-bar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.top-bar .brand-line {
  color: rgba(255, 255, 255, 0.7);
  font-weight: 400;
}

.top-bar .badge-countdown {
  font-size: 12px;
  padding: 3px 10px;
}

.top-bar .status-online {
  padding: 3px 12px;
  font-size: 12px;
}

.top-bar-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

/* ===== Header / Nav ===== */
.site-header {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: box-shadow 0.2s ease;
}

.site-header.scrolled {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}

.logo:hover {
  text-decoration: none;
}

.logo-mark {
  width: 40px;
  height: 40px;
  background: var(--primary);
  color: #fff;
  font-size: 20px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  letter-spacing: -1px;
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--dark);
  letter-spacing: -0.5px;
  white-space: nowrap;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-list li a {
  display: block;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--dark);
  border-radius: 999px;
  transition: all 0.2s ease;
  position: relative;
}

.nav-list li a:hover {
  color: var(--primary);
  background: rgba(217, 74, 43, 0.06);
  text-decoration: none;
}

.nav-list li.active a {
  color: var(--primary);
  font-weight: 600;
  background: rgba(217, 74, 43, 0.08);
}

.nav-list li.active a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}

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

.nav-cta {
  white-space: nowrap;
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: 8px;
}

.hamburger span {
  width: 22px;
  height: 2px;
  background: var(--dark);
  border-radius: 2px;
  transition: all 0.25s ease;
}

.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-cta-mobile {
  display: none;
}

/* ===== Hero Banner ===== */
.page-hero {
  background: var(--dark);
  position: relative;
  overflow: hidden;
  padding: 72px 0 64px;
  color: #fff;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: 0.2;
  z-index: 0;
}

.page-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(27, 30, 35, 0.92) 0%, rgba(27, 30, 35, 0.65) 60%, rgba(27, 30, 35, 0.3) 100%);
  z-index: 1;
}

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

.page-hero .hero-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: 20px;
}

.page-hero .hero-breadcrumb a {
  color: rgba(255, 255, 255, 0.7);
}

.page-hero .hero-breadcrumb a:hover {
  color: #fff;
  text-decoration: none;
}

.page-hero .hero-breadcrumb .sep {
  color: rgba(255, 255, 255, 0.4);
}

.page-hero h1 {
  font-size: 44px;
  line-height: 1.2;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.page-hero .hero-sub {
  font-size: 18px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.85);
  max-width: 620px;
  margin-bottom: 24px;
}

.page-hero .hero-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 24px;
}

.page-hero .hero-meta .status-online {
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(4px);
}

/* ===== 板块通用 ===== */
.section {
  padding: 72px 0;
}

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

.section-header {
  margin-bottom: 40px;
}

.section-header .tag-row {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.section-header h2 {
  font-size: 32px;
  line-height: 1.3;
  font-weight: 700;
  margin-bottom: 0.6em;
  padding-left: 16px;
  border-left: 4px solid var(--primary);
  letter-spacing: -0.5px;
}

.section-header p {
  font-size: 16px;
  color: var(--gray);
  max-width: 640px;
  margin-top: 12px;
}

.section-header.center {
  text-align: center;
}

.section-header.center h2 {
  border-left: none;
  padding-left: 0;
  position: relative;
  display: inline-block;
}

.section-header.center h2::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 48px;
  height: 4px;
  background: var(--primary);
  border-radius: 4px;
}

.section-header.center p {
  margin-left: auto;
  margin-right: auto;
}

/* ===== 分类介绍区 ===== */
.intro-section {
  padding: 64px 0;
}

.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

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

.intro-image img {
  width: 100%;
  height: 380px;
  object-fit: cover;
}

.intro-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(27, 30, 35, 0.35), transparent 40%);
  pointer-events: none;
}

.intro-badge {
  position: absolute;
  top: 20px;
  left: 20px;
  z-index: 2;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(6px);
  border-radius: 999px;
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 600;
  color: var(--dark);
  box-shadow: var(--shadow-sm);
}

.intro-text h2 {
  font-size: 30px;
  line-height: 1.3;
  font-weight: 700;
  margin-bottom: 16px;
  position: relative;
  padding-left: 16px;
  border-left: 4px solid var(--primary);
}

.intro-text p {
  color: var(--gray);
  margin-bottom: 20px;
  font-size: 16px;
  line-height: 1.8;
}

.intro-features {
  margin-top: 16px;
}

.intro-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  font-size: 15px;
  color: var(--dark);
  border-bottom: 1px dashed var(--border);
}

.intro-features li:last-child {
  border-bottom: none;
}

.intro-features li::before {
  content: '';
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  margin-top: 10px;
}

/* ===== 活动类型卡片 ===== */
.event-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.event-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.event-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--gold));
  opacity: 0;
  transition: opacity 0.2s ease;
}

.event-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

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

.event-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: var(--accent-light);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 20px;
}

.event-icon.red {
  background: rgba(217, 74, 43, 0.1);
  color: var(--primary);
}

.event-icon.gold {
  background: rgba(232, 179, 58, 0.12);
  color: #B47C10;
}

.event-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
}

.event-card p {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.7;
  margin-bottom: 16px;
}

.event-card .more-link {
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.event-card .more-link i {
  transition: transform 0.2s ease;
}

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

/* ===== 数据统计 ===== */
.stats-section {
  background: var(--dark);
  padding: 56px 0;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.stats-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-3.webp');
  background-size: cover;
  background-position: center;
  opacity: 0.1;
}

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

.stat-item .stat-num {
  font-size: 40px;
  font-weight: 800;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}

.stat-item .stat-label {
  font-size: 15px;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 8px;
}

.stat-item .stat-desc {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
  margin-top: 4px;
}

/* ===== 适用场景 ===== */
.scenario-section {
  padding: 64px 0;
}

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

.scenario-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-sm);
}

.scenario-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.scenario-card .scenario-num {
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  margin-bottom: 12px;
}

.scenario-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
}

.scenario-card p {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.65;
  margin-bottom: 16px;
}

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

/* ===== 流程 ===== */
.process-section {
  padding: 64px 0;
  background: var(--bg-alt);
}

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

.process-steps::before {
  content: '';
  position: absolute;
  top: 32px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0.3;
  z-index: 0;
}

.process-step {
  text-align: center;
  position: relative;
  z-index: 1;
}

.process-step .step-circle {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  background: #fff;
  border: 3px solid var(--primary);
  color: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 700;
  box-shadow: var(--shadow-sm);
}

.process-step:nth-child(2) .step-circle {
  border-color: var(--accent);
  color: var(--accent);
}

.process-step:nth-child(3) .step-circle {
  border-color: var(--gold);
  color: #B47C10;
}

.process-step:nth-child(4) .step-circle {
  border-color: var(--primary);
  color: var(--primary);
}

.process-step h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}

.process-step p {
  font-size: 14px;
  color: var(--gray);
  max-width: 200px;
  margin: 0 auto;
}

/* ===== 内容卡片（两列图文） ===== */
.content-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.content-card {
  display: flex;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-sm);
}

.content-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.content-card .card-img {
  flex: 0 0 40%;
  overflow: hidden;
  position: relative;
}

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

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

.content-card .card-img .play-badge {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.2);
  opacity: 0;
  transition: opacity 0.2s ease;
}

.content-card:hover .card-img .play-badge {
  opacity: 1;
}

.content-card .card-img .play-badge span {
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 18px;
}

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

.content-card .card-body .tag {
  align-self: flex-start;
  margin-bottom: 12px;
}

.content-card .card-body h3 {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 10px;
  color: var(--dark);
}

.content-card .card-body h3 a {
  color: inherit;
}

.content-card .card-body h3 a:hover {
  color: var(--primary);
  text-decoration: none;
}

.content-card .card-body p {
  font-size: 14px;
  color: var(--gray);
  line-height: 1.65;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.content-card .card-meta {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--gray);
  font-variant-numeric: tabular-nums;
}

.content-card .card-meta .arrow-link {
  margin-left: auto;
  color: var(--primary);
  font-weight: 600;
}

.content-card .card-meta .arrow-link:hover {
  text-decoration: none;
}

/* ===== FAQ ===== */
.faq-section {
  padding: 64px 0;
}

.faq-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.6fr;
  gap: 48px;
  align-items: start;
}

.faq-intro h2 {
  font-size: 30px;
  font-weight: 700;
  margin-bottom: 16px;
  position: relative;
  padding-left: 16px;
  border-left: 4px solid var(--primary);
}

.faq-intro p {
  color: var(--gray);
  margin-bottom: 24px;
}

.faq-intro .faq-contact {
  background: var(--accent-light);
  padding: 20px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(44, 122, 107, 0.2);
}

.faq-intro .faq-contact strong {
  color: var(--accent);
  font-size: 18px;
  display: block;
  margin-bottom: 6px;
}

.faq-intro .faq-contact span {
  font-size: 14px;
  color: var(--gray);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all 0.2s ease;
}

.faq-item.active {
  border-left: 4px solid var(--primary);
  box-shadow: var(--shadow-sm);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--dark);
  cursor: pointer;
  background: none;
  width: 100%;
  text-align: left;
}

.faq-question .faq-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: transform 0.25s ease;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}

.faq-answer p {
  padding: 0 24px 20px;
  font-size: 15px;
  color: var(--gray);
  line-height: 1.75;
}

/* ===== CTA 条 ===== */
.cta-strip {
  background: var(--bg);
  padding: 48px 0;
  border-top: 1px solid var(--border);
}

.cta-strip-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 40px;
  box-shadow: var(--shadow-sm);
  flex-wrap: wrap;
}

.cta-strip-text h3 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 4px;
}

.cta-strip-text p {
  color: var(--gray);
  font-size: 15px;
}

.cta-strip .btn-group {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 64px 0 0;
  margin-top: 0;
}

.footer-grid {
  padding-bottom: 48px;
}

.footer-logo {
  font-size: 24px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.site-footer p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.6);
}

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

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

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

.site-footer ul li a {
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.site-footer ul li a:hover {
  color: #fff;
  padding-left: 4px;
  text-decoration: none;
}

.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
}

.footer-contact i {
  width: 18px;
  color: var(--gold);
}

.site-footer .btn-primary.btn-sm {
  margin-top: 12px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

.footer-bottom p {
  margin: 0;
}

/* ===== 响应式 ===== */
@media screen and (max-width: 64em) {
  .content-cards {
    grid-template-columns: 1fr;
  }

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

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

  .process-steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px 24px;
  }

  .process-steps::before {
    display: none;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }

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

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

  .intro-image img {
    height: 300px;
  }
}

@media screen and (max-width: 40em) {
  body {
    font-size: 15px;
  }

  .container {
    padding: 0 16px;
  }

  .section {
    padding: 48px 0;
  }

  .page-hero {
    padding: 48px 0 40px;
  }

  .page-hero h1 {
    font-size: 32px;
  }

  .page-hero .hero-sub {
    font-size: 16px;
  }

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

  .intro-text h2 {
    font-size: 24px;
  }

  /* 导航 */
  .site-header {
    position: sticky;
  }

  .header-inner {
    min-height: 60px;
    flex-wrap: wrap;
  }

  .logo-text {
    font-size: 17px;
  }

  .logo-mark {
    width: 34px;
    height: 34px;
    font-size: 17px;
    border-radius: 8px;
  }

  .main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg);
    z-index: -1;
    flex-direction: column;
    justify-content: space-between;
    padding: 80px 24px 32px;
    gap: 0;
    transform: translateY(-100%);
    transition: transform 0.25s ease;
    visibility: hidden;
    opacity: 0;
  }

  .main-nav.open {
    transform: translateY(0);
    visibility: visible;
    opacity: 1;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    width: 100%;
  }

  .nav-list li a {
    font-size: 20px;
    padding: 14px 16px;
    border-radius: 12px;
    text-align: center;
  }

  .nav-list li.active a::after {
    display: none;
  }

  .nav-list li.active a {
    background: rgba(217, 74, 43, 0.1);
  }

  .nav-cta {
    display: none;
  }

  .nav-cta-mobile {
    display: inline-flex;
    width: 100%;
    justify-content: center;
  }

  .hamburger {
    display: flex;
  }

  .header-actions {
    gap: 8px;
  }

  /* 滑块 */
  .event-cards {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .scenario-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .process-steps {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .process-step .step-circle {
    width: 56px;
    height: 56px;
    font-size: 20px;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .stat-item .stat-num {
    font-size: 28px;
  }

  .stat-item .stat-label {
    font-size: 13px;
  }

  .stat-item .stat-desc {
    font-size: 12px;
  }

  .content-card {
    flex-direction: column;
  }

  .content-card .card-img {
    flex: none;
    height: 180px;
  }

  .content-card .card-body {
    padding: 20px;
  }

  .cta-strip-inner {
    padding: 24px;
    flex-direction: column;
    text-align: center;
  }

  .cta-strip .btn-group {
    justify-content: center;
    width: 100%;
  }

  .cta-strip .btn-group .btn {
    flex: 1;
  }

  .footer-grid {
    gap: 32px;
  }

  .footer-contact li {
    font-size: 13px;
  }

  .top-bar-inner {
    justify-content: center;
    text-align: center;
    gap: 6px;
  }

  .top-bar .brand-line {
    font-size: 12px;
  }
}

@media screen and (max-width: 520px) {
  .top-bar .badge-countdown {
    display: none;
  }

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

  .event-card {
    padding: 24px 20px;
  }

  .intro-image img {
    height: 220px;
  }
}