:root {
  --bg: #E6EBF2;
  --surface: #FFFFFF;
  --surface-soft: #F5F7FB;
  --surface-alt: #EEF2F7;
  --surface-deep: #DDE4EE;
  --primary: #289CFF;
  --primary-dark: #1E90F0;
  --text: #243447;
  --muted: #66788A;
  --subtle: #8A9AAF;
  --nav: #4E5F7A;
  --border: rgba(40, 156, 255, 0.16);
  --shadow: 0 14px 36px rgba(56, 92, 138, 0.12);
  --radius: 20px;
  --container: 1200px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: "Microsoft YaHei", "PingFang SC", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; line-height: 1.75; overflow-x: hidden; }
body.drawer-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }
button, input, textarea { font: inherit; }
button { border: 0; }
.container { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; }
.skip-link { position: fixed; left: 16px; top: -60px; z-index: 20000; padding: 10px 16px; background: #fff; color: var(--primary); border-radius: 10px; box-shadow: var(--shadow); }
.skip-link:focus { top: 12px; }
.site-header { position: sticky; top: 0; z-index: 9999; background: rgba(245,247,251,0.96); backdrop-filter: blur(10px); box-shadow: 0 8px 24px rgba(56,92,138,0.10); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; min-height: 72px; }
.logo { flex: 0 0 auto; display: inline-flex; align-items: center; min-width: 132px; }
.logo img { display: block; width: auto; max-width: 160px; max-height: 52px; }
.nav-wrap { flex: 1 1 auto; min-width: 0; display: flex; justify-content: center; }
.desktop-nav { display: flex; align-items: center; justify-content: center; gap: 5px; white-space: nowrap; flex-wrap: nowrap; }
.nav-link { position: relative; display: inline-flex; align-items: center; gap: 3px; padding: 23px 9px 21px; color: var(--nav); background: transparent; cursor: pointer; font-size: 15px; font-weight: 650; line-height: 1.2; }
.nav-link::after { content: ""; position: absolute; left: 10px; right: 10px; bottom: 13px; height: 2px; border-radius: 999px; background: var(--primary); transform: scaleX(0); transition: transform .2s ease; }
.nav-link:hover, .nav-link:focus-visible, .nav-link.is-active { color: var(--primary); }
.nav-link:hover::after, .nav-link:focus-visible::after, .nav-link.is-active::after { transform: scaleX(1); }
.header-action { flex: 0 0 auto; display: flex; align-items: center; }
.main-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 24px; border-radius: 999px; background: linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%); color: #FFFFFF; box-shadow: 0 10px 24px rgba(36,155,255,0.25); font-weight: 750; transition: transform .2s ease, box-shadow .2s ease; }
.main-btn:hover, .main-btn:focus-visible { background: linear-gradient(180deg, #48D9F7 0%, #1E90F0 100%); transform: translateY(-1px); box-shadow: 0 14px 28px rgba(36,155,255,0.30); }
.header-btn { min-width: 84px; }
.dropdown { position: relative; }
.dropdown-menu { position: absolute; top: calc(100% - 8px); left: 0; min-width: 190px; padding: 8px; background: #FFFFFF; border: 1px solid rgba(40,156,255,0.12); border-radius: 14px; box-shadow: 0 18px 38px rgba(56,92,138,0.16); z-index: 10000; opacity: 0; visibility: hidden; transform: translateY(8px); transition: .2s ease; }
.dropdown-right .dropdown-menu { left: auto; right: 0; }
.dropdown-menu a { display: block; padding: 10px 13px; color: var(--nav); border-radius: 9px; white-space: nowrap; font-size: 14px; }
.dropdown-menu a:hover, .dropdown-menu a:focus-visible { color: var(--primary); background: rgba(40,156,255,0.08); }
.dropdown:hover .dropdown-menu, .dropdown:focus-within .dropdown-menu, .dropdown.is-open .dropdown-menu { opacity: 1; visibility: visible; transform: translateY(0); }
.mobile-menu-btn { display: none; width: 42px; height: 42px; padding: 10px; border-radius: 12px; background: #fff; box-shadow: 0 6px 18px rgba(56,92,138,0.10); cursor: pointer; }
.mobile-menu-btn span { display: block; width: 100%; height: 2px; margin: 4px 0; background: var(--nav); border-radius: 9px; }
.drawer-overlay { position: fixed; inset: 0; z-index: 11000; background: rgba(26,44,66,.42); opacity: 0; visibility: hidden; transition: .25s ease; }
.mobile-drawer { position: fixed; left: 0; top: 0; bottom: 0; z-index: 12000; width: min(84vw, 320px); padding: 18px; background: #F5F7FB; box-shadow: 20px 0 50px rgba(36,52,71,.20); transform: translateX(-105%); transition: transform .28s ease; overflow-y: auto; }
.drawer-open .drawer-overlay { opacity: 1; visibility: visible; }
.drawer-open .mobile-drawer { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-bottom: 18px; border-bottom: 1px solid var(--border); }
.drawer-logo img { display: block; max-width: 145px; max-height: 48px; }
.drawer-close { width: 40px; height: 40px; border-radius: 12px; background: #fff; color: var(--nav); font-size: 27px; cursor: pointer; }
.drawer-nav { display: grid; gap: 6px; padding-top: 16px; }
.drawer-nav a { padding: 11px 13px; border-radius: 11px; color: var(--nav); font-weight: 650; }
.drawer-nav a:hover, .drawer-nav a:focus-visible { color: var(--primary); background: rgba(40,156,255,.08); }
main { min-height: 60vh; }
.banner-slider { width: min(calc(100% - 40px), var(--container)); margin: 28px auto 38px; border-radius: 22px; background: #FFFFFF; box-shadow: 0 18px 40px rgba(56,92,138,0.12); overflow: hidden; position: relative; aspect-ratio: 2.4 / 1; }
.banner-track { position: relative; width: 100%; height: 100%; }
.banner-slide { position: absolute; inset: 0; opacity: 0; visibility: hidden; transition: opacity .55s ease, visibility .55s ease; }
.banner-slide.is-active { opacity: 1; visibility: visible; }
.banner-slider img { display: block; width: 100%; height: 100%; object-fit: contain; background: #FFFFFF; }
.banner-caption, .banner-text, .slide-title, .slide-desc, .slide-content, .slide-card, .banner-card { display: none !important; }
.slider-arrow { position: absolute; top: 50%; z-index: 5; width: 44px; height: 44px; margin-top: -22px; border-radius: 50%; background: rgba(255,255,255,.88); color: var(--nav); box-shadow: 0 8px 22px rgba(56,92,138,.18); cursor: pointer; font-size: 24px; line-height: 1; }
.slider-arrow:hover { color: var(--primary); background: #fff; }
.slider-prev { left: 16px; }.slider-next { right: 16px; }
.slider-dots { position: absolute; left: 50%; bottom: 15px; z-index: 5; display: flex; gap: 8px; transform: translateX(-50%); }
.slider-dot { width: 10px; height: 10px; padding: 0; border-radius: 50%; background: rgba(78,95,122,.35); cursor: pointer; transition: .2s ease; }
.slider-dot.is-active { width: 26px; border-radius: 999px; background: var(--primary); }
.section { padding: 36px 0; }
.section.compact { padding: 24px 0; }
.section-soft { background: var(--surface-alt); }
.section-deep { background: var(--surface-deep); }
.section-head { max-width: 760px; margin-bottom: 24px; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; margin-bottom: 8px; color: var(--primary); font-size: 13px; font-weight: 800; letter-spacing: .08em; }
h1, h2, h3, .section-title { color: var(--primary); line-height: 1.28; }
h1 { margin: 0 0 16px; font-size: clamp(34px, 5vw, 58px); }
h2 { margin: 0 0 12px; font-size: clamp(25px, 3.5vw, 38px); }
h3 { margin: 0 0 8px; font-size: 20px; }
p { margin: 0 0 14px; }
.lead { color: var(--muted); font-size: clamp(16px, 2vw, 20px); }
.muted { color: var(--muted); }.subtle { color: var(--subtle); }
.text-link { display: inline-flex; align-items: center; gap: 6px; color: var(--primary); font-weight: 750; }
.text-link::after { content: "→"; transition: transform .2s ease; }
.text-link:hover::after { transform: translateX(3px); }
.card, .zone-card, .info-card, .review-card, .faq-item, .hero-panel { background: rgba(255,255,255,0.92); border: 1px solid var(--border); box-shadow: 0 14px 36px rgba(56,92,138,0.10); border-radius: var(--radius); }
.card, .zone-card, .info-card, .review-card { padding: 24px; }
.card-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 18px; }
.card-grid.three { grid-template-columns: repeat(3, minmax(0,1fr)); }
.card-grid.two { grid-template-columns: repeat(2, minmax(0,1fr)); }
.entry-card { position: relative; overflow: hidden; }
.entry-card::before { content: attr(data-index); display: inline-flex; align-items: center; justify-content: center; width: 34px; height: 34px; margin-bottom: 18px; border-radius: 11px; background: rgba(40,156,255,.10); color: var(--primary); font-weight: 850; }
.media-card { padding: 0; overflow: hidden; }
.media-card img { display: block; width: 100%; aspect-ratio: 16 / 10; object-fit: contain; background: #fff; border-bottom: 1px solid var(--border); }
.media-card-body { padding: 22px; }
.split { display: grid; grid-template-columns: minmax(0,1.08fr) minmax(340px,.92fr); gap: 28px; align-items: center; }
.split.reverse .split-media { order: -1; }
.split-media { overflow: hidden; border-radius: var(--radius); background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow); }
.split-media img, .content-img, .zone-card img, .app-section img { display: block; width: 100%; height: auto; object-fit: contain; background: #fff; }
.split-copy { padding: 10px 0; }
.point-list { display: grid; gap: 12px; margin: 20px 0; padding: 0; list-style: none; }
.point-list li { position: relative; padding: 14px 16px 14px 45px; border-radius: 14px; background: rgba(255,255,255,.72); color: var(--muted); }
.point-list li::before { content: "✓"; position: absolute; left: 16px; top: 13px; width: 22px; height: 22px; border-radius: 50%; background: rgba(40,156,255,.12); color: var(--primary); text-align: center; line-height: 22px; font-weight: 800; }
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 16px; }
.step { counter-increment: step; padding: 23px; border-radius: 18px; background: #fff; border: 1px solid var(--border); }
.step::before { content: counter(step, decimal-leading-zero); display: block; margin-bottom: 12px; color: var(--primary); font-weight: 900; font-size: 21px; }
.review-card p { color: var(--muted); }
.review-meta { margin-top: 16px; color: var(--subtle); font-size: 14px; }
.notice { padding: 20px 22px; border-radius: 16px; background: rgba(40,156,255,.09); border: 1px solid rgba(40,156,255,.18); color: var(--muted); }
.notice strong { color: var(--primary); }
.faq-list { display: grid; gap: 12px; }
.faq-item { padding: 0; overflow: hidden; }
.faq-item details { padding: 20px 22px; }
.faq-item summary { cursor: pointer; color: var(--text); font-weight: 800; list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; float: right; color: var(--primary); font-size: 22px; }
.faq-item details[open] summary::after { content: "−"; }
.faq-item details p { margin-top: 14px; color: var(--muted); }
.inner-hero { padding: 48px 0 28px; }
.hero-panel { padding: clamp(28px,5vw,54px); overflow: hidden; background: linear-gradient(135deg, rgba(255,255,255,.97), rgba(238,242,247,.95)); }
.hero-panel.with-media { display: grid; grid-template-columns: minmax(0,1.05fr) minmax(320px,.95fr); gap: 30px; align-items: center; }
.hero-media { border-radius: 18px; overflow: hidden; background: #fff; border: 1px solid var(--border); }
.hero-media img { display: block; width: 100%; height: auto; object-fit: contain; }
.stat-row { display: grid; grid-template-columns: repeat(3,1fr); gap: 12px; margin-top: 22px; }
.stat { padding: 16px; border-radius: 14px; background: rgba(40,156,255,.07); }
.stat strong { display: block; color: var(--primary); font-size: 20px; }.stat span { color: var(--muted); font-size: 13px; }
.cta-panel { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 28px; border-radius: var(--radius); background: #fff; border: 1px solid var(--border); box-shadow: var(--shadow); }
.cta-panel p { max-width: 720px; color: var(--muted); margin: 0; }
.site-footer { margin-top: 44px; padding: 52px 0 18px; background: #243447; color: #EAF3FF; }
.footer-grid { display: grid; grid-template-columns: 1.7fr repeat(3,1fr); gap: 32px; }
.footer-brand img { display: block; max-width: 160px; max-height: 52px; margin-bottom: 16px; }
.footer-brand p { color: rgba(234,243,255,.74); max-width: 420px; }
.footer-links { display: grid; align-content: start; gap: 8px; }
.footer-links h2 { margin: 0 0 8px; color: #fff; font-size: 17px; }
.footer-links a { color: rgba(234,243,255,.76); font-size: 14px; }
.footer-links a:hover { color: #fff; }
.compliance-box { margin-top: 28px; padding: 18px 20px; border-radius: 14px; background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.10); }
.compliance-box p { margin: 0; color: rgba(234,243,255,.78); font-size: 14px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; padding-top: 22px; margin-top: 22px; border-top: 1px solid rgba(255,255,255,.10); color: rgba(234,243,255,.58); font-size: 13px; }
@media (max-width: 1100px) {
  .desktop-nav { gap: 1px; }.nav-link { padding-inline: 7px; font-size: 14px; }.logo { min-width: 110px; }.logo img { max-width: 138px; }
  .card-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }.steps { grid-template-columns: repeat(2,minmax(0,1fr)); }
}
@media (max-width: 980px) {
  .header-inner { min-height: 66px; display: grid; grid-template-columns: 82px 1fr 82px; gap: 10px; }
  .nav-wrap { display: none; }.mobile-menu-btn { display: block; justify-self: start; }.logo { min-width: 0; justify-self: center; }.logo img { max-width: 136px; max-height: 46px; }
  .header-action { justify-self: end; }.header-btn { min-width: 76px; min-height: 40px; padding: 0 18px; }
  .split, .hero-panel.with-media { grid-template-columns: 1fr; }.split.reverse .split-media { order: 0; }.hero-media { max-width: 720px; }
  .footer-grid { grid-template-columns: repeat(2,1fr); }.footer-brand { grid-column: 1 / -1; }
  .banner-slider { aspect-ratio: 16 / 7; }
}
@media (max-width: 700px) {
  .container { width: min(calc(100% - 28px), var(--container)); }
  .banner-slider { width: calc(100% - 28px); margin-top: 18px; border-radius: 16px; aspect-ratio: 16 / 8.6; }
  .slider-arrow { width: 38px; height: 38px; margin-top: -19px; font-size: 20px; }.slider-prev { left: 9px; }.slider-next { right: 9px; }
  .section { padding: 28px 0; }.inner-hero { padding-top: 28px; }.hero-panel { padding: 25px 20px; }
  h1 { font-size: 35px; }.lead { font-size: 16px; }
  .card-grid, .card-grid.three, .card-grid.two, .steps { grid-template-columns: 1fr; }
  .stat-row { grid-template-columns: 1fr; }.cta-panel { align-items: flex-start; flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px 18px; }.footer-brand { grid-column: 1 / -1; }.footer-bottom { flex-direction: column; gap: 4px; }
}
@media (max-width: 420px) {
  .header-inner { grid-template-columns: 70px 1fr 70px; }.header-btn { min-width: 68px; padding: 0 14px; }.logo img { max-width: 120px; }
  .footer-grid { grid-template-columns: 1fr; }.footer-brand { grid-column: auto; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; } }