:root {
  --bg: #fff8fb;
  --surface: #ffffff;
  --text: #2d2630;
  --muted: #706775;
  --brand: #ff5f93;
  --brand-2: #ffb15f;
  --line: rgba(70, 48, 70, .11);
  --shadow: 0 18px 50px rgba(255, 95, 147, .16);
  --radius-lg: 32px;
  --radius-md: 22px;
  --radius-sm: 14px;
  --container: min(1160px, calc(100% - 32px));
}
* { 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(--text);
  background:
    radial-gradient(circle at top left, rgba(255, 95, 147, .18), transparent 30rem),
    linear-gradient(180deg, #fff8fb 0%, #ffffff 48%, #fff8fb 100%);
  line-height: 1.7;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; height: auto; }
.container { width: var(--container); margin: 0 auto; }
.skip-link { position: absolute; left: -999px; top: 0; background: var(--text); color: #fff; padding: 10px 16px; z-index: 100; }
.skip-link:focus { left: 12px; top: 12px; border-radius: var(--radius-sm); }
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  background: rgba(255, 248, 251, .88);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 14px 0; }
.logo-link { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; }
.logo-link img { width: 166px; height: auto; }
.nav-list { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.nav-list a { display: inline-flex; padding: 9px 12px; border-radius: 999px; font-size: 14px; color: #574c5b; }
.nav-list a:hover, .nav-list a:focus { background: rgba(255, 95, 147, .12); color: var(--brand); }
.search-bar { border-top: 1px solid rgba(70,48,70,.06); padding: 12px 0 16px; }
.search-form { display: flex; gap: 10px; align-items: center; }
.search-form label { font-weight: 700; white-space: nowrap; color: #574c5b; }
.search-form input { flex: 1; min-width: 0; border: 1px solid var(--line); border-radius: 999px; padding: 13px 16px; background: #fff; color: var(--text); outline: none; }
.search-form input:focus { border-color: rgba(255,95,147,.55); box-shadow: 0 0 0 4px rgba(255,95,147,.12); }
.button, button.button { border: 0; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 0 18px; border-radius: 999px; font-weight: 800; color: #fff; background: linear-gradient(135deg, var(--brand), var(--brand-2)); box-shadow: 0 12px 28px rgba(255,95,147,.22); }
.button.secondary { color: var(--brand); background: #fff; border: 1px solid rgba(255,95,147,.22); box-shadow: none; }
.button:hover { transform: translateY(-1px); }
.search-message { margin: 10px 0 0; color: var(--muted); min-height: 22px; font-size: 14px; }
.hero { padding: 64px 0 42px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.02fr) minmax(320px, .98fr); gap: 38px; align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; padding: 7px 12px; border-radius: 999px; background: rgba(255,95,147,.12); color: var(--brand); font-weight: 800; font-size: 14px; }
h1, h2, h3, h4, h5, h6 { line-height: 1.18; margin: 0 0 16px; letter-spacing: -.02em; }
h1 { font-size: clamp(38px, 6vw, 68px); }
h2 { font-size: clamp(28px, 4vw, 44px); }
h3 { font-size: clamp(22px, 3vw, 28px); }
p { margin: 0 0 16px; }
.lead { font-size: clamp(17px, 2.2vw, 21px); color: #594d5d; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 26px 0; }
.stat-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 30px; }
.stat-card { border: 1px solid var(--line); background: rgba(255,255,255,.76); border-radius: var(--radius-md); padding: 18px; }
.stat-card strong { display: block; font-size: 26px; }
.hero-media { position: relative; }
.hero-card { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow); background: var(--surface); border: 1px solid rgba(255,255,255,.9); }
.hero-card figure { margin: 0; }
.image-description { padding: 14px 18px; margin: 0; font-size: 14px; color: var(--muted); background: #fff; }
.play-float { position: absolute; right: 24px; bottom: 56px; width: 86px; height: 86px; border-radius: 50%; background: rgba(255,255,255,.94); display: grid; place-items: center; color: var(--brand); font-size: 32px; box-shadow: 0 16px 38px rgba(50,30,50,.2); }
.section { padding: 60px 0; }
.section.alt { background: rgba(255,255,255,.48); border-block: 1px solid rgba(70,48,70,.06); }
.section-head { max-width: 760px; margin-bottom: 28px; }
.section-head p { color: var(--muted); font-size: 17px; }
.grid { display: grid; gap: 20px; }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 24px; box-shadow: 0 10px 30px rgba(80,45,70,.06); }
.card h3, .card h4 { color: #332936; }
.card p { color: var(--muted); }
.video-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.video-card { background: #fff; border: 1px solid var(--line); border-radius: 26px; overflow: hidden; box-shadow: 0 12px 32px rgba(80,45,70,.08); transition: transform .2s ease, box-shadow .2s ease; }
.video-card:hover, .video-card.is-hovered { transform: translateY(-5px); box-shadow: 0 24px 46px rgba(255,95,147,.16); }
.video-thumb { position: relative; aspect-ratio: 16 / 10; overflow: hidden; }
.video-thumb img { width: 100%; height: 100%; object-fit: cover; }
.play-button { position: absolute; inset: 0; display: grid; place-items: center; opacity: 0; background: rgba(33, 22, 35, .28); color: #fff; transition: opacity .2s ease; }
.play-button span { display: grid; place-items: center; width: 64px; height: 64px; border-radius: 50%; background: linear-gradient(135deg, var(--brand), var(--brand-2)); box-shadow: 0 16px 32px rgba(0,0,0,.22); font-size: 24px; }
.video-card:hover .play-button, .video-card.is-hovered .play-button { opacity: 1; }
.video-body { padding: 18px; }
.video-tags { display: flex; flex-wrap: wrap; gap: 7px; margin: 12px 0; }
.tag { display: inline-flex; align-items: center; border-radius: 999px; padding: 4px 9px; background: rgba(255,95,147,.1); color: #c33769; font-size: 12px; font-weight: 700; }
.video-stats { display: flex; flex-wrap: wrap; gap: 10px; color: var(--muted); font-size: 13px; border-top: 1px solid rgba(70,48,70,.07); padding-top: 12px; }
.timeline { display: grid; gap: 14px; }
.timeline-item { display: grid; grid-template-columns: 118px minmax(0, 1fr); gap: 16px; padding: 18px; border: 1px solid var(--line); border-radius: var(--radius-md); background: #fff; }
.timeline-item time { color: var(--brand); font-weight: 800; }
.review-card { display: flex; flex-direction: column; gap: 12px; }
.stars { color: #ff9e32; letter-spacing: 1px; }
.faq-list { display: grid; gap: 12px; }
.faq-item { background: #fff; border: 1px solid var(--line); border-radius: var(--radius-md); padding: 18px 20px; }
.faq-item summary { cursor: pointer; font-weight: 800; color: #332936; }
.faq-item p { margin-top: 12px; margin-bottom: 0; color: var(--muted); }
.breadcrumb { font-size: 14px; color: var(--muted); margin-bottom: 18px; }
.breadcrumb a { color: var(--brand); font-weight: 700; }
.kpi-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.kpi-strip .card { text-align: center; }
.contact-panel { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; align-items: stretch; }
.contact-box { background: linear-gradient(135deg, rgba(255,95,147,.1), rgba(255,177,95,.12)); border: 1px solid rgba(255,95,147,.18); border-radius: var(--radius-lg); padding: 24px; }
.form-demo { display: grid; gap: 12px; }
.form-demo input, .form-demo textarea { width: 100%; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 13px 14px; font: inherit; resize: vertical; }
.share-row { display: flex; gap: 10px; flex-wrap: wrap; }
.site-footer { padding: 42px 0; border-top: 1px solid var(--line); background: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr; gap: 24px; align-items: start; }
.footer-logo { width: 150px; margin-bottom: 12px; }
.footer-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; color: var(--muted); }
.footer-list a:hover { color: var(--brand); }
.update-time { color: var(--muted); font-size: 14px; margin-top: 20px; }
.notice { border-left: 4px solid var(--brand); background: rgba(255,95,147,.08); padding: 16px 18px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; color: #5b4c5c; }
@media (max-width: 1040px) {
  .hero-grid, .grid.four, .video-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid.three, .footer-grid, .contact-panel { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .header-inner { align-items: flex-start; flex-direction: column; }
  .nav-list { width: 100%; overflow-x: auto; flex-wrap: nowrap; padding-bottom: 4px; }
  .search-form { align-items: stretch; flex-direction: column; }
  .hero { padding-top: 38px; }
  .hero-grid, .grid.two, .grid.four, .video-grid, .stat-row, .kpi-strip { grid-template-columns: 1fr; }
  .timeline-item { grid-template-columns: 1fr; }
  .play-float { right: 18px; bottom: 52px; width: 64px; height: 64px; font-size: 24px; }
}