:root {
  --bg: #f8f7f3;
  --surface: #ffffff;
  --ink: #111827;
  --muted: #667085;
  --line: rgba(17, 24, 39, .12);
  --accent: #b78b4f;
  --accent-soft: #eadcc5;
  --radius: 28px;
  --shadow: 0 24px 80px rgba(17, 24, 39, .08);
}
* { 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(--ink);
  background:
    radial-gradient(circle at top left, rgba(183, 139, 79, .15), transparent 34rem),
    linear-gradient(180deg, #fbfaf7 0%, var(--bg) 44%, #fff 100%);
  line-height: 1.75;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input, textarea { font: inherit; }
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(248, 247, 243, .86);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  max-width: 1180px;
  margin: 0 auto;
  padding: 18px 22px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand-lockup, .footer-logo { display: inline-flex; align-items: center; gap: 12px; font-weight: 700; letter-spacing: .02em; }
.brand-lockup img, .footer-logo img { width: 112px; height: auto; }
.brand-lockup span { color: var(--muted); font-size: 14px; }
.main-nav { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.main-nav a {
  padding: 9px 13px;
  border-radius: 999px;
  color: rgba(17, 24, 39, .72);
  transition: background .2s ease, color .2s ease, transform .2s ease;
}
.main-nav a:hover { background: rgba(17, 24, 39, .06); color: var(--ink); transform: translateY(-1px); }
.search-row { max-width: 1180px; margin: 0 auto; padding: 0 22px 16px; }
.search-form { display: grid; grid-template-columns: 1fr auto; gap: 10px; }
.search-form input {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 13px 18px;
  background: rgba(255,255,255,.72);
  color: var(--ink);
  outline: none;
}
.search-form input:focus { border-color: rgba(183,139,79,.65); box-shadow: 0 0 0 4px rgba(183,139,79,.12); }
.search-form button, .btn {
  border: 0;
  border-radius: 999px;
  padding: 13px 20px;
  background: var(--ink);
  color: white;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.search-form button:hover, .btn:hover { transform: translateY(-2px); box-shadow: 0 14px 35px rgba(17,24,39,.18); }
.search-notice { min-height: 24px; margin: 8px 4px 0; color: var(--muted); font-size: 14px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }
main { overflow: hidden; }
.section { max-width: 1180px; margin: 0 auto; padding: 92px 22px; }
.hero { min-height: 76vh; display: grid; place-items: center; padding-top: 70px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(280px, .92fr); gap: 46px; align-items: center; width: 100%; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; color: var(--accent); font-weight: 700; letter-spacing: .12em; text-transform: uppercase; font-size: 13px; }
.eyebrow::before { content: ""; width: 34px; height: 1px; background: currentColor; }
h1, h2, h3 { line-height: 1.18; margin: 0; letter-spacing: -.03em; }
h1 { font-size: clamp(42px, 8vw, 86px); max-width: 820px; }
h2 { font-size: clamp(30px, 4.5vw, 54px); }
h3 { font-size: 22px; }
.lead { font-size: clamp(17px, 2vw, 21px); color: var(--muted); max-width: 720px; margin: 24px 0 0; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.btn.secondary { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.hero-card {
  position: relative;
  border: 1px solid var(--line);
  background: rgba(255,255,255,.76);
  border-radius: 38px;
  box-shadow: var(--shadow);
  padding: 18px;
  overflow: hidden;
}
.hero-card::before { content: ""; position: absolute; inset: -30% -10% auto auto; width: 260px; height: 260px; background: rgba(183,139,79,.18); border-radius: 999px; filter: blur(8px); }
.hero-card img { border-radius: 28px; aspect-ratio: 4 / 3; object-fit: cover; }
.hero-meta { display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; margin-top: 14px; }
.hero-meta span { border: 1px solid var(--line); border-radius: 18px; padding: 12px; background: #fff; font-size: 13px; color: var(--muted); }
.hero-meta strong { display: block; color: var(--ink); font-size: 22px; }
.section-head { display: flex; justify-content: space-between; gap: 28px; align-items: end; margin-bottom: 38px; }
.section-head p { max-width: 520px; margin: 0; color: var(--muted); }
.about-grid { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 32px; align-items: center; }
.about-panel { padding: 34px; border: 1px solid var(--line); border-radius: var(--radius); background: rgba(255,255,255,.72); }
.about-panel ul { padding-left: 20px; color: var(--muted); margin-bottom: 0; }
.media-figure { margin: 0; position: relative; }
.media-figure img { border-radius: var(--radius); box-shadow: var(--shadow); aspect-ratio: 16 / 10; object-fit: cover; }
.media-figure figcaption { margin-top: 12px; color: var(--muted); font-size: 13px; }
.service-grid, .video-grid, .testimonial-grid, .inner-grid { display: grid; gap: 18px; }
.service-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.video-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card, .service-card, .testimonial, .faq details, .inner-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,.78);
  box-shadow: 0 16px 50px rgba(17,24,39,.045);
}
.service-card, .testimonial, .inner-card { padding: 26px; }
.service-card p, .testimonial p, .inner-card p { color: var(--muted); margin-bottom: 0; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.tag { border: 1px solid var(--line); background: #fff; border-radius: 999px; padding: 5px 10px; font-size: 12px; color: var(--muted); }
.video-card { overflow: hidden; }
.video-frame { position: relative; background: #111827; border-radius: var(--radius) var(--radius) 0 0; overflow: hidden; }
.video-frame img, .video-frame video { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.video-frame video { position: absolute; inset: 0; opacity: 0; }
.play-button {
  position: absolute; inset: 0; display: grid; place-items: center;
  background: linear-gradient(180deg, transparent 35%, rgba(17,24,39,.38));
  opacity: 0; transition: opacity .22s ease;
}
.video-card:hover .play-button, .video-card:focus-within .play-button { opacity: 1; }
.play-button span { display: grid; place-items: center; width: 62px; height: 62px; border-radius: 999px; background: rgba(255,255,255,.92); color: var(--ink); font-weight: 800; }
.video-body { padding: 22px; }
.video-body p { color: var(--muted); margin: 10px 0 0; }
.video-stats { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; color: var(--muted); font-size: 14px; }
.strength { background: #111827; color: #fff; }
.strength .section-head p, .strength .muted { color: rgba(255,255,255,.68); }
.stat-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; }
.stat { border: 1px solid rgba(255,255,255,.14); border-radius: var(--radius); padding: 28px; background: rgba(255,255,255,.06); }
.stat strong { font-size: 38px; display: block; line-height: 1; }
.testimonial-grid { grid-template-columns: repeat(3, minmax(0,1fr)); }
.testimonial strong { display: block; margin-top: 16px; }
.faq { display: grid; gap: 12px; }
.faq details { padding: 22px 24px; }
.faq summary { cursor: pointer; font-weight: 700; }
.faq p { color: var(--muted); margin-bottom: 0; }
.contact-grid { display: grid; grid-template-columns: minmax(0, .85fr) minmax(0,1.15fr); gap: 24px; }
.contact-card { padding: 30px; border-radius: var(--radius); border: 1px solid var(--line); background: rgba(255,255,255,.78); }
.contact-form { display: grid; gap: 12px; }
.contact-form input, .contact-form textarea {
  width: 100%; border: 1px solid var(--line); border-radius: 18px; padding: 14px 16px; background: #fff; outline: none;
}
.contact-form textarea { min-height: 140px; resize: vertical; }
.form-note { color: var(--muted); font-size: 14px; margin: 0; }
.site-footer { border-top: 1px solid var(--line); background: #fff; }
.footer-grid { max-width: 1180px; margin: 0 auto; padding: 56px 22px; display: grid; grid-template-columns: 1.2fr .7fr .9fr; gap: 28px; }
.footer-grid h2 { font-size: 17px; margin-bottom: 12px; }
.footer-grid a { display: block; color: var(--muted); margin: 7px 0; }
.footer-grid p { color: var(--muted); margin: 10px 0; }
.footer-bottom { max-width: 1180px; margin: 0 auto; padding: 20px 22px 34px; display: flex; justify-content: space-between; gap: 16px; color: var(--muted); border-top: 1px solid var(--line); }
.breadcrumb { color: var(--muted); font-size: 14px; margin-bottom: 22px; }
.page-hero { padding-top: 90px; }
.inner-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
@media (max-width: 920px) {
  .header-inner { align-items: flex-start; flex-direction: column; }
  .main-nav { justify-content: flex-start; }
  .hero-grid, .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .service-grid, .video-grid, .testimonial-grid, .stat-grid, .footer-grid, .inner-grid { grid-template-columns: 1fr 1fr; }
  .section-head { display: block; }
  .section-head p { margin-top: 14px; }
}
@media (max-width: 640px) {
  .section { padding: 64px 18px; }
  .service-grid, .video-grid, .testimonial-grid, .stat-grid, .footer-grid, .inner-grid { grid-template-columns: 1fr; }
  .search-form { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; }
  .hero-meta { grid-template-columns: 1fr; }
}