:root {
  --bg: #f8f6f1;
  --paper: #ffffff;
  --ink: #202124;
  --muted: #6b7280;
  --brand: #d94f3d;
  --brand-dark: #8d2e24;
  --line: #e6e0d8;
  --soft: #fff2ee;
  --shadow: 0 18px 50px rgba(60, 45, 33, .12);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.75;
}
a { color: inherit; text-decoration: none; }
a:hover { color: var(--brand); }
img, video { max-width: 100%; display: block; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); border: 0; }
.site-header { background: rgba(255,255,255,.96); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 20; backdrop-filter: blur(16px); }
.topbar, .main-nav, .search-wrap, .container { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.topbar { display: flex; justify-content: space-between; align-items: center; padding: 18px 0 12px; gap: 16px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-size: 24px; font-weight: 900; letter-spacing: .02em; }
.logo-mark { display: grid; place-items: center; width: 42px; height: 42px; border-radius: 14px; color: #fff; background: linear-gradient(135deg, var(--brand), var(--brand-dark)); box-shadow: 0 10px 26px rgba(217,79,61,.28); }
.domain-pill { background: var(--soft); color: var(--brand-dark); padding: 8px 12px; border-radius: 999px; font-size: 14px; border: 1px solid #ffd7cd; }
.main-nav { display: flex; gap: 10px; flex-wrap: wrap; padding: 0 0 12px; }
.main-nav a { padding: 8px 12px; border-radius: 999px; background: #fbfaf7; border: 1px solid var(--line); font-weight: 700; font-size: 14px; }
.search-wrap { padding: 0 0 16px; }
.fake-search { display: flex; gap: 10px; }
.fake-search input { flex: 1; border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px; font-size: 15px; background: #fff; }
.fake-search button, .btn { border: 0; background: var(--brand); color: #fff; border-radius: 14px; padding: 12px 18px; font-weight: 800; cursor: pointer; box-shadow: 0 10px 20px rgba(217,79,61,.2); }
.search-hint { margin: 8px 0 0; color: var(--muted); font-size: 13px; }
.hero { padding: 34px 0 22px; }
.hero-grid { display: grid; grid-template-columns: 1.35fr .85fr; gap: 24px; align-items: stretch; }
.hero-card, .panel, .article-body, .info-card { background: var(--paper); border: 1px solid var(--line); border-radius: 28px; box-shadow: var(--shadow); }
.hero-card { padding: 32px; display: grid; grid-template-columns: 1fr .9fr; gap: 28px; align-items: center; }
.kicker { display: inline-flex; align-items: center; gap: 8px; color: var(--brand-dark); background: var(--soft); border: 1px solid #ffd7cd; padding: 5px 10px; border-radius: 999px; font-weight: 800; font-size: 13px; }
h1, h2, h3 { line-height: 1.25; margin: 0 0 12px; }
h1 { font-size: clamp(32px, 5vw, 56px); letter-spacing: -.04em; }
h2 { font-size: clamp(24px, 3vw, 34px); }
h3 { font-size: 20px; }
.lead { color: #3f454d; font-size: 18px; margin: 0 0 18px; }
.meta-list { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0; }
.meta-list span, .tag { border: 1px solid var(--line); border-radius: 999px; padding: 6px 10px; background: #fff; color: #4b5563; font-size: 13px; }
.hero-side { display: grid; gap: 16px; }
.panel { padding: 22px; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 16px; }
.stat { background: #faf7f2; border: 1px solid var(--line); border-radius: 18px; padding: 12px; }
.stat strong { display: block; color: var(--brand-dark); font-size: 22px; }
.section { padding: 26px 0; }
.section-title { display: flex; justify-content: space-between; gap: 20px; align-items: end; margin-bottom: 18px; }
.section-title p { margin: 0; color: var(--muted); max-width: 680px; }
.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.video-card { position: relative; overflow: hidden; background: var(--paper); border: 1px solid var(--line); border-radius: 24px; box-shadow: var(--shadow); }
.video-frame { position: relative; aspect-ratio: 16/9; background: #111; overflow: hidden; }
.video-frame img, .video-frame video { width: 100%; height: 100%; object-fit: cover; }
.video-frame video { position: absolute; inset: 0; opacity: 0; }
.play-btn { position: absolute; inset: 0; display: grid; place-items: center; background: rgba(0,0,0,.08); opacity: 0; transition: opacity .22s ease; }
.play-btn span { width: 64px; height: 64px; border-radius: 50%; background: rgba(255,255,255,.92); display: grid; place-items: center; box-shadow: 0 12px 30px rgba(0,0,0,.22); }
.play-btn span::before { content: ''; border-left: 18px solid var(--brand); border-top: 12px solid transparent; border-bottom: 12px solid transparent; margin-left: 5px; }
.video-card:hover .play-btn, .video-card:focus-within .play-btn { opacity: 1; }
.card-body { padding: 18px; }
.card-body p { color: var(--muted); margin: 0 0 12px; }
.interactions { display: flex; flex-wrap: wrap; gap: 10px; color: #4b5563; font-size: 13px; }
.news-list { display: grid; gap: 10px; }
.news-list a { display: flex; justify-content: space-between; gap: 16px; align-items: center; padding: 12px 0; border-bottom: 1px dashed var(--line); }
.news-list small { color: var(--muted); white-space: nowrap; }
.topic-banner { display: grid; grid-template-columns: .9fr 1.1fr; gap: 22px; align-items: center; }
.figure-note { color: var(--muted); font-size: 13px; margin: 10px 0 0; }
.author-card { display: flex; gap: 14px; align-items: center; }
.author-card img { width: 70px; height: 70px; border-radius: 20px; object-fit: cover; }
.faq-item { background: var(--paper); border: 1px solid var(--line); border-radius: 18px; padding: 18px; }
.comment { background: #fff; border: 1px solid var(--line); border-radius: 20px; padding: 18px; }
.comment strong { color: var(--brand-dark); }
.breadcrumb { color: var(--muted); font-size: 14px; margin-bottom: 12px; }
.breadcrumb a { color: var(--brand-dark); }
.article-wrap { padding: 34px 0; }
.article-body { padding: min(6vw, 48px); }
.article-body h1 { font-size: clamp(30px, 4vw, 48px); }
.article-body p { font-size: 17px; }
.article-body ul { padding-left: 22px; }
.article-body li { margin: 8px 0; }
.article-meta { display: flex; flex-wrap: wrap; gap: 10px; color: var(--muted); font-size: 14px; margin: 16px 0 22px; }
.notice { border-left: 4px solid var(--brand); background: var(--soft); padding: 14px 16px; border-radius: 14px; }
.form-card label { display: block; font-weight: 800; margin: 12px 0 6px; }
.form-card input, .form-card textarea, .form-card select { width: 100%; border: 1px solid var(--line); border-radius: 14px; padding: 12px; font: inherit; background: #fff; }
.form-card textarea { min-height: 140px; }
.site-footer { margin-top: 30px; background: #261f1c; color: #f8f4ed; padding: 36px 0; }
.footer-grid { width: min(1180px, calc(100% - 32px)); margin: 0 auto; display: grid; grid-template-columns: 1.2fr .7fr 1fr; gap: 24px; }
.footer-grid a { display: block; margin: 6px 0; color: #ffe1d9; }
.footer-grid p { color: #d8d0c8; }
.footer-logo { margin-bottom: 12px; }
.json-box { white-space: pre-wrap; background: #171717; color: #f6f6f6; padding: 18px; border-radius: 18px; overflow: auto; font-size: 13px; }
@media (max-width: 900px) {
  .hero-grid, .hero-card, .topic-banner, .grid-3, .grid-4, .footer-grid { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .topbar { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 560px) {
  .fake-search { flex-direction: column; }
  .stats { grid-template-columns: 1fr; }
  .news-list a { align-items: flex-start; flex-direction: column; }
  .hero-card, .panel, .article-body { border-radius: 20px; padding: 20px; }
}