:root {
  --bg: #f7f4ee;
  --panel: #ffffff;
  --ink: #111720;
  --muted: #68707a;
  --line: rgba(17, 23, 32, .12);
  --accent: #b48a52;
  --accent-soft: #eadbc6;
  --shadow: 0 24px 80px rgba(17, 23, 32, .10);
  --radius: 28px;
  --max: 1180px;
}
* { 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", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at top left, rgba(180,138,82,.14), transparent 28rem), var(--bg);
  line-height: 1.75;
  text-rendering: optimizeLegibility;
}
a { color: inherit; text-decoration: none; }
img, video { max-width: 100%; display: block; }
button, input, textarea { font: inherit; }
.skip-link { position: absolute; left: -999px; top: 8px; padding: 10px 14px; background: var(--ink); color: #fff; z-index: 20; }
.skip-link:focus { left: 8px; }
.site-header { position: sticky; top: 0; z-index: 10; backdrop-filter: blur(18px); background: rgba(247,244,238,.82); border-bottom: 1px solid var(--line); }
.header-inner { width: min(var(--max), calc(100% - 36px)); margin: 0 auto; padding: 18px 0 12px; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.logo { display: inline-flex; align-items: center; gap: 12px; font-weight: 800; letter-spacing: .02em; }
.logo img { width: 40px; height: 40px; border-radius: 14px; }
.logo small { display: block; font-size: 12px; font-weight: 500; color: var(--muted); letter-spacing: .08em; text-transform: uppercase; }
.nav { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.nav a { padding: 9px 12px; border-radius: 999px; color: var(--muted); font-size: 15px; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); background: rgba(17,23,32,.06); }
.nav-search { margin-top: 14px; display: grid; grid-template-columns: 1fr auto; gap: 10px; }
.nav-search input { width: 100%; border: 1px solid var(--line); background: rgba(255,255,255,.72); border-radius: 999px; padding: 12px 18px; outline: none; }
.nav-search input:focus { border-color: rgba(180,138,82,.65); box-shadow: 0 0 0 4px rgba(180,138,82,.13); }
.btn, .nav-search button, .contact-form button { border: 0; border-radius: 999px; padding: 12px 18px; background: var(--ink); color: #fff; cursor: pointer; box-shadow: 0 12px 28px rgba(17,23,32,.16); }
.btn.light { background: #fff; color: var(--ink); border: 1px solid var(--line); box-shadow: none; }
.search-note { margin: 8px 0 0; color: var(--muted); font-size: 13px; min-height: 22px; }
.container { width: min(var(--max), calc(100% - 36px)); margin: 0 auto; }
.hero { min-height: 78vh; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(310px, .95fr); gap: 60px; align-items: center; padding: 82px 0; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; color: var(--accent); font-weight: 700; letter-spacing: .12em; font-size: 13px; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 34px; height: 1px; background: var(--accent); }
h1, h2, h3 { line-height: 1.15; margin: 0; letter-spacing: -.04em; }
h1 { font-size: clamp(42px, 7vw, 86px); }
h2 { font-size: clamp(30px, 4.4vw, 54px); }
h3 { font-size: 22px; }
p { margin: 0; color: var(--muted); }
.lead { font-size: clamp(17px, 2vw, 22px); max-width: 690px; margin-top: 24px; color: #3a424d; }
.hero-actions { margin-top: 34px; display: flex; gap: 14px; flex-wrap: wrap; }
.hero-panel { position: relative; }
.hero-panel figure { margin: 0; padding: 14px; background: rgba(255,255,255,.62); border: 1px solid var(--line); border-radius: calc(var(--radius) + 12px); box-shadow: var(--shadow); }
.hero-panel img { border-radius: var(--radius); aspect-ratio: 16/10; object-fit: cover; }
.floating-stat { position: absolute; left: -24px; bottom: 28px; background: rgba(255,255,255,.94); border: 1px solid var(--line); border-radius: 22px; padding: 16px 18px; box-shadow: 0 18px 42px rgba(17,23,32,.12); }
.floating-stat strong { display: block; font-size: 26px; line-height: 1; }
.section { padding: 86px 0; }
.section-head { display: flex; justify-content: space-between; gap: 32px; align-items: end; margin-bottom: 34px; }
.section-head p { max-width: 520px; }
.grid { display: grid; gap: 20px; }
.grid.three { grid-template-columns: repeat(3, 1fr); }
.grid.four { grid-template-columns: repeat(4, 1fr); }
.card, .metric, .quote, .faq-item, .contact-card { background: rgba(255,255,255,.76); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; box-shadow: 0 14px 45px rgba(17,23,32,.06); }
.card:hover, .quote:hover { transform: translateY(-4px); transition: transform .25s ease; }
.card .tagline { color: var(--accent); font-weight: 700; font-size: 13px; letter-spacing: .08em; }
.video-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.video-card { position: relative; overflow: hidden; border-radius: calc(var(--radius) + 4px); background: var(--panel); border: 1px solid var(--line); box-shadow: 0 18px 60px rgba(17,23,32,.08); }
.video-card figure { margin: 0; position: relative; }
.video-card video, .video-card img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; background: #eee; }
.video-card figcaption { padding: 18px 20px 20px; }
.video-card .meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; color: var(--muted); font-size: 13px; }
.video-card .meta span { border: 1px solid var(--line); border-radius: 999px; padding: 4px 9px; background: rgba(255,255,255,.65); }
.play-toggle { position: absolute; inset: 0; display: grid; place-items: center; background: rgba(17,23,32,.30); opacity: 0; transition: opacity .22s ease; }
.video-card:hover .play-toggle, .video-card.is-hover .play-toggle { opacity: 1; }
.play-toggle span { width: 74px; height: 74px; border-radius: 50%; background: #fff; display: grid; place-items: center; color: var(--ink); font-size: 30px; box-shadow: 0 18px 44px rgba(0,0,0,.2); }
.metric strong { display: block; font-size: clamp(32px, 4vw, 52px); letter-spacing: -.05em; }
.tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.tags span { color: #3d3429; background: var(--accent-soft); border-radius: 999px; padding: 6px 12px; font-size: 13px; }
.gallery { display: grid; grid-template-columns: 1.2fr .8fr; gap: 20px; }
.gallery figure { margin: 0; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--line); background: #fff; }
.gallery img { width: 100%; height: 100%; object-fit: cover; }
.gallery-stack { display: grid; gap: 20px; }
.faq-list { display: grid; gap: 12px; }
.faq-item { padding: 0; overflow: hidden; }
.faq-item button { width: 100%; border: 0; background: transparent; color: var(--ink); text-align: left; padding: 22px 24px; cursor: pointer; font-weight: 700; display: flex; justify-content: space-between; gap: 16px; }
.faq-item .answer { display: none; padding: 0 24px 24px; }
.faq-item.open .answer { display: block; }
.contact-wrap { display: grid; grid-template-columns: .9fr 1.1fr; gap: 22px; }
.contact-form { display: grid; gap: 14px; }
.contact-form input, .contact-form textarea { border: 1px solid var(--line); border-radius: 18px; padding: 14px 16px; background: rgba(255,255,255,.72); outline: none; }
.contact-form textarea { min-height: 140px; resize: vertical; }
.social-share { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.social-share button { border: 1px solid var(--line); background: rgba(255,255,255,.68); border-radius: 999px; padding: 9px 13px; cursor: pointer; color: var(--muted); }
.breadcrumb { padding-top: 34px; color: var(--muted); font-size: 14px; }
.breadcrumb a { color: var(--accent); }
.page-hero { padding: 72px 0 48px; }
.article-list { display: grid; gap: 18px; }
.article-card { display: grid; grid-template-columns: 220px 1fr; gap: 22px; align-items: center; }
.article-card img { border-radius: 22px; aspect-ratio: 16/10; object-fit: cover; }
.footer { margin-top: 60px; padding: 46px 0; background: #101820; color: #fff; }
.footer p, .footer a { color: rgba(255,255,255,.68); }
.footer-inner { display: grid; grid-template-columns: 1.2fr .8fr; gap: 24px; align-items: start; }
.footer .logo small { color: rgba(255,255,255,.55); }
.footer-links { display: flex; gap: 12px; flex-wrap: wrap; justify-content: flex-end; }
.update { margin-top: 18px; font-size: 14px; }
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .55s ease, transform .55s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (max-width: 900px) {
  .hero, .contact-wrap, .footer-inner, .gallery { grid-template-columns: 1fr; }
  .grid.three, .grid.four, .video-grid { grid-template-columns: 1fr 1fr; }
  .section-head { display: grid; }
  .article-card { grid-template-columns: 1fr; }
  .floating-stat { position: static; margin-top: 12px; }
  .footer-links { justify-content: flex-start; }
}
@media (max-width: 620px) {
  .topbar { align-items: flex-start; flex-direction: column; }
  .nav { width: 100%; }
  .nav a { padding: 8px 10px; }
  .grid.three, .grid.four, .video-grid { grid-template-columns: 1fr; }
  .nav-search { grid-template-columns: 1fr; }
  .section { padding: 58px 0; }
  .hero { padding: 58px 0; }
  .card, .metric, .quote, .contact-card { padding: 22px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; scroll-behavior: auto !important; }
}