:root {
  --ink: #182231;
  --muted: #667085;
  --soft: #f5f7fb;
  --line: #e5eaf1;
  --brand: #305380;
  --brand-2: #2f746f;
  --card: #ffffff;
  --warning: #8a5b19;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  color: var(--ink);
  background: #fff;
  line-height: 1.75;
}
a { color: inherit; text-decoration: none; }
img, video { max-width: 100%; display: block; }
.container { width: min(1160px, calc(100% - 32px)); margin: 0 auto; }
.site-header { position: sticky; top: 0; z-index: 30; background: rgba(255,255,255,.94); border-bottom: 1px solid var(--line); backdrop-filter: blur(12px); }
.header-row { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 14px 0; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; color: var(--brand); letter-spacing: .02em; }
.logo img { width: 42px; height: 42px; border-radius: 12px; }
.nav { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; justify-content: flex-end; }
.nav a { padding: 8px 12px; border-radius: 999px; color: #344054; font-size: 14px; }
.nav a:hover, .nav a.active { background: var(--soft); color: var(--brand); }
.search-wrap { border-top: 1px solid var(--line); padding: 12px 0 14px; background: rgba(245,247,251,.8); }
.search-form { display: grid; grid-template-columns: 1fr auto; gap: 10px; }
.search-form input { width: 100%; border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px; font-size: 15px; }
.search-form button, .btn { border: none; cursor: pointer; border-radius: 14px; padding: 12px 18px; background: var(--brand); color: #fff; font-weight: 700; box-shadow: 0 8px 24px rgba(48,83,128,.18); }
.btn.secondary { background: #fff; color: var(--brand); border: 1px solid var(--line); box-shadow: none; }
.search-tip { margin: 8px 0 0; color: var(--muted); font-size: 13px; min-height: 20px; }
.hero { background: linear-gradient(135deg, #f7f9fd 0%, #eef4f7 100%); padding: 70px 0 50px; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 32px; align-items: center; }
.eyebrow { display: inline-flex; gap: 8px; align-items: center; color: var(--brand); background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 6px 12px; font-size: 14px; font-weight: 700; }
h1, h2, h3, h4, h5, h6 { line-height: 1.28; margin: 0 0 14px; color: #111827; }
h1 { font-size: clamp(34px, 5vw, 58px); letter-spacing: -.04em; margin-top: 18px; }
h2 { font-size: clamp(28px, 3vw, 40px); letter-spacing: -.03em; }
h3 { font-size: 22px; }
p { margin: 0 0 14px; }
.lead { font-size: 18px; color: #475467; max-width: 760px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 26px 0; }
.hero-points { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; margin-top: 24px; }
.point { background: #fff; border: 1px solid var(--line); border-radius: 18px; padding: 16px; }
.point strong { display: block; color: var(--brand); font-size: 20px; }
.hero-card { background: #fff; border: 1px solid var(--line); border-radius: 28px; padding: 20px; box-shadow: 0 18px 40px rgba(31,46,70,.08); }
.video-frame { position: relative; overflow: hidden; border-radius: 22px; background: #101828; }
.video-frame video { aspect-ratio: 16/9; object-fit: cover; width: 100%; min-height: 220px; }
.play { position: absolute; inset: auto auto 18px 18px; display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,.94); color: var(--brand); border-radius: 999px; padding: 9px 14px; font-weight: 800; opacity: 0; transform: translateY(8px); transition: .22s ease; }
.video-card:hover .play, .hero-card:hover .play { opacity: 1; transform: translateY(0); }
.section { padding: 64px 0; }
.section.alt { background: var(--soft); }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 22px; margin-bottom: 28px; }
.section-head p { color: var(--muted); max-width: 720px; }
.grid { display: grid; gap: 18px; }
.grid.cols-2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.grid.cols-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.grid.cols-4 { grid-template-columns: repeat(4, minmax(0,1fr)); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 22px; padding: 22px; box-shadow: 0 10px 28px rgba(30,42,62,.04); }
.card .num { display: inline-flex; width: 42px; height: 42px; align-items: center; justify-content: center; background: var(--soft); color: var(--brand); border-radius: 14px; font-weight: 800; margin-bottom: 16px; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.tag { display: inline-flex; border: 1px solid var(--line); background: #fff; color: #475467; border-radius: 999px; padding: 4px 10px; font-size: 13px; }
.video-card { padding: 0; overflow: hidden; }
.video-body { padding: 20px; }
.stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; margin: 14px 0; color: #475467; font-size: 14px; }
.stats span { background: var(--soft); border-radius: 12px; padding: 8px; text-align: center; }
.breadcrumb { color: var(--muted); font-size: 14px; margin-bottom: 18px; }
.breadcrumb a { color: var(--brand); font-weight: 700; }
.page-hero { padding: 46px 0 34px; background: var(--soft); border-bottom: 1px solid var(--line); }
.page-hero h1 { font-size: clamp(30px, 4vw, 46px); }
.timeline { border-left: 3px solid var(--line); margin-left: 12px; display: grid; gap: 18px; }
.timeline-item { position: relative; padding-left: 26px; }
.timeline-item::before { content: ""; position: absolute; left: -10px; top: 8px; width: 16px; height: 16px; border-radius: 50%; background: var(--brand); }
.faq-item { border-bottom: 1px solid var(--line); padding: 18px 0; }
.faq-item summary { cursor: pointer; font-weight: 800; color: #111827; }
.faq-item p { color: #475467; margin-top: 10px; }
.quote { color: #344054; }
.rating { color: var(--warning); font-weight: 800; }
.contact-box { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.form { display: grid; gap: 12px; }
.form input, .form textarea, .form select { width: 100%; border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px; font: inherit; }
.form textarea { min-height: 130px; resize: vertical; }
.notice { background: #fff8eb; border: 1px solid #f2d3a2; color: #70430c; border-radius: 18px; padding: 16px; }
.footer { background: #101828; color: #d0d5dd; padding: 42px 0 24px; }
.footer a { color: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.2fr .8fr .8fr; gap: 28px; }
.footer .logo { color: #fff; margin-bottom: 12px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.12); margin-top: 28px; padding-top: 18px; color: #98a2b3; font-size: 14px; }
.inline-list { display: flex; flex-wrap: wrap; gap: 10px; padding: 0; margin: 0; list-style: none; }
.inline-list li { background: rgba(255,255,255,.08); padding: 7px 10px; border-radius: 12px; }
.figure-note { color: var(--muted); font-size: 13px; margin-top: 8px; }
.skip-link { position: absolute; left: -999px; top: 8px; background: #fff; padding: 8px; }
.skip-link:focus { left: 8px; z-index: 99; }
@media (max-width: 900px) {
  .hero-grid, .contact-box, .grid.cols-2, .grid.cols-3, .grid.cols-4, .footer-grid { grid-template-columns: 1fr; }
  .hero-points { grid-template-columns: 1fr; }
  .section-head { display: block; }
  .search-form { grid-template-columns: 1fr; }
  .nav { justify-content: flex-start; }
  .header-row { align-items: flex-start; flex-direction: column; }
}