:root {
  --bg: #f6f4ef;
  --panel: #ffffff;
  --ink: #263143;
  --muted: #677187;
  --line: #e7e2d8;
  --brand: #cc7a29;
  --brand-dark: #8d4c16;
  --soft: #fff6e8;
  --success: #4d8a70;
  --shadow: 0 22px 70px rgba(29, 36, 51, .10);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.72;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; height: auto; display: block; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(246, 244, 239, .94);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.header-inner, .footer-inner, .container { width: min(1160px, calc(100% - 36px)); margin: 0 auto; }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 22px; padding: 18px 0 12px; }
.logo-link { display: inline-flex; align-items: center; gap: 12px; font-weight: 800; }
.logo-link img { width: 150px; }
.nav-list { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; margin: 0; padding: 0; list-style: none; }
.nav-list a { padding: 9px 12px; border-radius: 999px; color: var(--muted); font-weight: 650; font-size: 15px; }
.nav-list a:hover, .nav-list a[aria-current="page"] { color: var(--brand-dark); background: var(--soft); }
.search-strip { border-top: 1px solid rgba(231, 226, 216, .7); padding: 10px 0 15px; }
.search-box { display: flex; gap: 10px; align-items: center; width: min(680px, 100%); margin: 0 auto; }
.search-box input { flex: 1; border: 1px solid var(--line); border-radius: 999px; padding: 13px 18px; font-size: 15px; background: #fff; outline: none; }
.search-box button, .btn { border: 0; border-radius: 999px; padding: 13px 22px; cursor: pointer; background: var(--ink); color: #fff; font-weight: 800; box-shadow: 0 12px 24px rgba(38,49,67,.14); }
.btn.secondary { background: #fff; color: var(--ink); border: 1px solid var(--line); box-shadow: none; }
.search-hint { text-align: center; margin: 8px 0 0; color: var(--muted); font-size: 14px; min-height: 20px; }
.hero { padding: 64px 0 38px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 34px; align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px; border-radius: 999px; color: var(--brand-dark); background: var(--soft); font-weight: 800; font-size: 14px; }
h1, h2, h3 { line-height: 1.22; margin: 0 0 16px; color: var(--ink); }
h1 { font-size: clamp(38px, 6vw, 68px); letter-spacing: -.04em; }
h2 { font-size: clamp(28px, 4vw, 42px); letter-spacing: -.025em; }
h3 { font-size: 22px; }
p { margin: 0 0 16px; color: var(--muted); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0; }
.hero-card, .panel { background: var(--panel); border: 1px solid var(--line); border-radius: 30px; box-shadow: var(--shadow); padding: 26px; }
.hero-card figure { margin: 0; }
.hero-card figcaption, .image-description { color: var(--muted); font-size: 14px; margin-top: 10px; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 22px; }
.stat { padding: 16px; border-radius: 22px; background: #fff; border: 1px solid var(--line); }
.stat strong { display: block; color: var(--brand-dark); font-size: 24px; }
.section { padding: 44px 0; }
.section-head { display: flex; justify-content: space-between; gap: 24px; align-items: end; margin-bottom: 22px; }
.section-head p { max-width: 720px; }
.grid { display: grid; gap: 18px; }
.grid.three { grid-template-columns: repeat(3, 1fr); }
.grid.four { grid-template-columns: repeat(4, 1fr); }
.card { background: #fff; border: 1px solid var(--line); border-radius: 26px; padding: 22px; box-shadow: 0 14px 34px rgba(29, 36, 51, .06); }
.card h3 { font-size: 20px; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.tag { background: var(--soft); color: var(--brand-dark); border-radius: 999px; padding: 5px 10px; font-size: 13px; font-weight: 750; }
.video-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.video-card { overflow: hidden; padding: 0; }
.video-shell { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: #e9e4d8; }
.video-shell video, .video-shell img { width: 100%; height: 100%; object-fit: cover; }
.video-play { position: absolute; inset: 0; margin: auto; width: 76px; height: 76px; border-radius: 50%; border: 0; background: rgba(38, 49, 67, .82); color: #fff; font-size: 28px; opacity: 0; transform: scale(.92); transition: .2s ease; cursor: pointer; }
.video-shell:hover .video-play, .video-shell:focus-within .video-play { opacity: 1; transform: scale(1); }
.video-body { padding: 20px; }
.video-meta { display: flex; flex-wrap: wrap; gap: 12px; color: var(--muted); font-size: 14px; margin: 12px 0 0; }
.timeline { border-left: 3px solid var(--line); padding-left: 20px; display: grid; gap: 18px; }
.timeline-item { position: relative; }
.timeline-item::before { content: ""; position: absolute; left: -30px; top: 7px; width: 16px; height: 16px; border-radius: 50%; background: var(--brand); border: 4px solid #fff; }
.faq { display: grid; gap: 12px; }
details { background: #fff; border: 1px solid var(--line); border-radius: 22px; padding: 18px 20px; }
summary { cursor: pointer; font-weight: 800; color: var(--ink); }
details p { margin-top: 12px; }
.review { display: grid; gap: 8px; }
.stars { color: var(--brand-dark); letter-spacing: 2px; }
.contact-box { display: grid; grid-template-columns: 1fr .8fr; gap: 22px; align-items: center; }
.contact-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.contact-list li { background: #fff; border: 1px solid var(--line); padding: 13px 16px; border-radius: 18px; }
.breadcrumb { color: var(--muted); font-size: 14px; margin: 28px 0 6px; }
.page-hero { padding: 44px 0 24px; }
.article-layout { display: grid; grid-template-columns: 1fr 320px; gap: 24px; align-items: start; }
.sidebar { position: sticky; top: 126px; }
.site-footer { margin-top: 50px; background: #202938; color: #fff; padding: 42px 0; }
.footer-inner { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: center; }
.footer-inner p, .site-footer a { color: rgba(255,255,255,.76); }
.footer-logo img { width: 150px; margin-bottom: 14px; }
.footer-links { display: flex; flex-wrap: wrap; gap: 12px; justify-content: end; }
.footer-links a { padding: 8px 10px; border-radius: 999px; background: rgba(255,255,255,.08); }
.notice { padding: 14px 18px; border-radius: 18px; background: #fff8eb; color: #7a4a10; border: 1px solid #f0d9aa; }
@media (max-width: 920px) {
  .header-inner, .section-head, .contact-box, .footer-inner, .article-layout { grid-template-columns: 1fr; display: grid; }
  .hero-grid, .grid.three, .grid.four, .video-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr; }
  .nav-list { justify-content: flex-start; }
  .footer-links { justify-content: start; }
  .sidebar { position: static; }
}
@media (max-width: 620px) {
  .header-inner { align-items: start; }
  .search-box { flex-direction: column; align-items: stretch; }
  .hero { padding-top: 40px; }
  .card, .hero-card, .panel { border-radius: 22px; padding: 20px; }
}