:root {
  --bg: #fffaf0;
  --panel: #ffffff;
  --panel-soft: #fff5d8;
  --text: #2b2118;
  --muted: #725f4f;
  --line: #ead8b5;
  --accent: #ffb629;
  --accent-dark: #8a5a00;
  --green: #3d7d52;
  --shadow: 0 18px 50px rgba(82, 55, 12, .12);
  --radius: 22px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #fff9e8 0%, #fffaf0 38%, #ffffff 100%);
  line-height: 1.75;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
button, input, textarea { font: inherit; }
.skip-link { position: absolute; left: -999px; top: 12px; background: var(--text); color: #fff; padding: 8px 12px; z-index: 10; }
.skip-link:focus { left: 12px; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  backdrop-filter: blur(16px);
  background: rgba(255, 250, 240, .92);
  border-bottom: 1px solid var(--line);
}
.header-inner, .footer-inner, .page-shell { width: min(1200px, calc(100% - 32px)); margin: 0 auto; }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 14px 0; }
.brand-logo { display: inline-flex; align-items: center; gap: 12px; min-width: 250px; }
.brand-logo img { width: 58px; height: 58px; border-radius: 18px; box-shadow: var(--shadow); }
.brand-logo strong { display: block; font-size: 20px; line-height: 1.2; }
.brand-logo small { display: block; color: var(--muted); font-size: 12px; }
.main-nav { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.main-nav a { padding: 9px 12px; border-radius: 999px; color: var(--muted); font-weight: 700; font-size: 14px; }
.main-nav a:hover, .main-nav a.is-active { background: var(--text); color: #fff; }
.search-wrap { width: min(1200px, calc(100% - 32px)); margin: 0 auto 14px; }
.brand-search { display: grid; grid-template-columns: auto 1fr auto; gap: 10px; align-items: center; background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 10px; box-shadow: 0 8px 30px rgba(87, 55, 10, .08); }
.brand-search label { font-weight: 800; color: var(--accent-dark); white-space: nowrap; }
.brand-search input, .submit-form input, .submit-form textarea { width: 100%; border: 1px solid var(--line); border-radius: 14px; padding: 11px 12px; background: #fffdf8; color: var(--text); }
.brand-search button, .primary-btn, .secondary-btn, .small-btn, .action-row button, .share-actions button, .submit-form button { border: 0; border-radius: 999px; padding: 10px 16px; background: var(--text); color: #fff; cursor: pointer; font-weight: 800; }
.brand-search button:hover, .primary-btn:hover, .small-btn:hover, .share-actions button:hover { transform: translateY(-1px); }
.search-hint { margin: 6px 2px 0; color: var(--muted); font-size: 13px; }
.page-shell { padding: 24px 0 54px; }
.breadcrumb { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; color: var(--muted); font-size: 14px; margin: 8px 0 20px; }
.breadcrumb a { color: var(--accent-dark); font-weight: 700; }
.hero-section { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(380px, .95fr); gap: 28px; align-items: center; padding: 26px; background: radial-gradient(circle at 10% 10%, #fff1b8, transparent 26%), linear-gradient(135deg, #fff7db, #ffffff); border: 1px solid var(--line); border-radius: 30px; box-shadow: var(--shadow); }
.eyebrow { margin: 0 0 8px; color: var(--accent-dark); font-weight: 900; letter-spacing: .02em; }
h1 { font-size: clamp(32px, 5vw, 58px); line-height: 1.08; margin: 0 0 18px; letter-spacing: -.04em; }
h2 { font-size: clamp(24px, 3.5vw, 38px); line-height: 1.18; margin: 0 0 8px; letter-spacing: -.03em; }
h3 { margin: 0 0 8px; line-height: 1.35; }
.hero-intro, .subtitle, .intro { color: var(--muted); margin: 0; }
.hero-domain { display: inline-flex; gap: 8px; align-items: center; margin: 18px 0; padding: 8px 12px; border-radius: 999px; background: #fff; border: 1px solid var(--line); color: var(--muted); }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 16px 0 22px; }
.secondary-btn { background: #fff; color: var(--text); border: 1px solid var(--line); }
.kpi-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin: 0; }
.kpi-list div { background: rgba(255,255,255,.78); border: 1px solid var(--line); border-radius: 18px; padding: 12px; }
.kpi-list dt { color: var(--muted); font-size: 13px; }
.kpi-list dd { margin: 0; font-weight: 900; font-size: 20px; }
.hero-media .video-card { margin: 0; }
.quick-entries { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 22px 0; }
.quick-entries a { background: var(--panel); border: 1px solid var(--line); border-radius: 22px; padding: 18px; box-shadow: 0 8px 24px rgba(87,55,10,.08); }
.quick-entries strong { display: block; font-size: 18px; }
.quick-entries span { display: block; color: var(--muted); font-size: 14px; }
.module-section { margin: 26px 0; padding: 24px; background: var(--panel); border: 1px solid var(--line); border-radius: 28px; box-shadow: 0 10px 38px rgba(87,55,10,.08); }
.compact-section { padding: 22px; }
.section-heading { display: flex; justify-content: space-between; gap: 20px; align-items: flex-start; margin-bottom: 18px; }
.module-heat { min-width: 170px; text-align: right; }
.module-heat strong { display: block; color: var(--green); font-size: 18px; }
.module-heat a, .text-link { color: var(--accent-dark); font-weight: 900; }
.module-grid, .video-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.module-grid { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.video-card, .info-card, .author-card, .comment-card, .category-grid article, .rule-list article, .contact-card { background: #fffdf7; border: 1px solid var(--line); border-radius: 22px; overflow: hidden; box-shadow: 0 8px 24px rgba(87,55,10,.06); }
.video-poster-wrap { position: relative; aspect-ratio: 16/9; overflow: hidden; background: #2b2118; }
.video-poster-wrap video, .video-poster-wrap img { width: 100%; height: 100%; object-fit: cover; }
.video-poster-wrap video { position: absolute; inset: 0; }
.video-poster-wrap img { position: relative; z-index: 1; transition: transform .25s ease, filter .25s ease; }
.play-icon { position: absolute; z-index: 2; left: 50%; top: 50%; width: 62px; height: 62px; transform: translate(-50%, -50%) scale(.8); border-radius: 50%; display: grid; place-items: center; background: rgba(255, 255, 255, .9); color: var(--text); opacity: 0; transition: .2s ease; font-size: 24px; box-shadow: 0 12px 32px rgba(0,0,0,.18); }
.video-card:hover .play-icon, .video-card.is-hovered .play-icon { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.video-card:hover img, .video-card.is-hovered img { transform: scale(1.04); filter: brightness(.86); }
.video-badge { position: absolute; z-index: 2; right: 12px; top: 12px; background: rgba(43,33,24,.86); color: #fff; border-radius: 999px; padding: 4px 9px; font-size: 12px; }
.card-body, .info-content { padding: 16px; }
.card-body p, .info-content p { color: var(--muted); margin: 0 0 12px; }
.source-line { font-size: 12px; }
.source-line a { color: var(--accent-dark); font-weight: 800; }
.meta-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin: 12px 0; }
.info-card .meta-grid { grid-template-columns: repeat(4, 1fr); }
.meta-grid span, .category-meta span, .author-stats span { padding: 6px 8px; border-radius: 999px; background: #fff2ce; color: var(--accent-dark); font-size: 12px; font-weight: 800; text-align: center; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0; }
.tag { border: 1px solid var(--line); border-radius: 999px; padding: 4px 9px; color: var(--muted); background: #fff; font-size: 12px; }
.action-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.action-row button { padding: 7px 10px; background: #fff; color: var(--text); border: 1px solid var(--line); font-size: 12px; }
.action-row button.is-done { background: var(--accent); color: var(--text); }
.info-card { display: grid; grid-template-columns: 180px 1fr; }
.info-image { min-height: 100%; background: var(--panel-soft); }
.info-image img { height: 100%; object-fit: cover; }
.category-grid, .author-grid, .comment-grid, .rule-list { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.category-grid article, .author-card, .comment-card, .rule-list article, .contact-card { padding: 16px; }
.category-meta, .author-stats { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.author-card img { width: 86px; height: 86px; border-radius: 28px; object-fit: cover; margin-bottom: 12px; }
.author-card .role { color: var(--accent-dark); font-weight: 900; }
.small-btn { display: inline-flex; margin-top: 10px; font-size: 13px; padding: 8px 12px; }
.comment-card p { margin-top: 0; }
.comment-meta { display: flex; flex-wrap: wrap; gap: 8px; color: var(--muted); font-size: 13px; }
.faq-list { display: grid; gap: 10px; }
details { background: #fffdf7; border: 1px solid var(--line); border-radius: 18px; padding: 12px 16px; }
summary { cursor: pointer; font-weight: 900; }
details p { color: var(--muted); margin-bottom: 0; }
.share-panel { margin: 26px 0; padding: 22px; border-radius: 26px; background: var(--text); color: #fff; }
.share-panel p { color: rgba(255,255,255,.78); }
.share-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.share-actions button { background: #fff; color: var(--text); }
.page-hero { display: grid; grid-template-columns: minmax(0, 1fr) 360px; gap: 22px; align-items: center; padding: 24px; border-radius: 28px; background: linear-gradient(135deg, #fff3c5, #fff); border: 1px solid var(--line); box-shadow: var(--shadow); }
.page-hero img { border-radius: 22px; }
.submit-form { display: grid; gap: 14px; }
.submit-form label { display: grid; gap: 8px; font-weight: 900; }
.submit-form textarea { min-height: 120px; resize: vertical; }
.contact-card { font-size: 18px; }
.site-footer { margin-top: 36px; background: #251b13; color: #fff; }
.footer-inner { padding: 30px 0; }
.footer-logo img { width: 54px; height: 54px; }
.footer-logo small, .site-footer p { color: rgba(255,255,255,.72); }
.footer-links { display: flex; flex-wrap: wrap; gap: 12px; margin: 18px 0; }
.footer-links a { color: #fff; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.16); border-radius: 999px; padding: 7px 11px; }
.update-time { font-weight: 900; color: #fff !important; }
@media (max-width: 980px) {
  .header-inner { align-items: flex-start; flex-direction: column; }
  .main-nav { justify-content: flex-start; }
  .hero-section, .page-hero { grid-template-columns: 1fr; }
  .module-grid, .video-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .category-grid, .author-grid, .comment-grid, .rule-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .kpi-list { grid-template-columns: repeat(2, 1fr); }
  .quick-entries { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .header-inner, .footer-inner, .page-shell, .search-wrap { width: min(100% - 22px, 1200px); }
  .brand-search { grid-template-columns: 1fr; }
  .module-section, .hero-section, .page-hero { padding: 16px; border-radius: 22px; }
  .module-grid, .video-grid, .category-grid, .author-grid, .comment-grid, .rule-list { grid-template-columns: 1fr; }
  .info-card { grid-template-columns: 1fr; }
  .section-heading { flex-direction: column; }
  .module-heat { text-align: left; }
  .meta-grid, .info-card .meta-grid { grid-template-columns: repeat(2, 1fr); }
}