:root {
  --bg: #F4FBFF;
  --surface: #FFFFFF;
  --surface-soft: #EAF7FF;
  --primary: #1CA8F6;
  --primary-light: #38C7FF;
  --primary-dark: #0877C9;
  --cyan: #7FE4FF;
  --ink: #223044;
  --muted: #5F7082;
  --subtle: #7A8A9A;
  --footer: #082A46;
  --shadow: 0 16px 40px rgba(8,119,201,.08);
  --radius: 22px;
  --header-h: 126px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; overflow-x: hidden; background: var(--bg); color: var(--ink); font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif; line-height: 1.75; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }
body.drawer-open { overflow: hidden; }
.skip-link { position: fixed; left: 12px; top: -60px; z-index: 9999; padding: 10px 16px; background: #fff; color: var(--primary-dark); border-radius: 999px; box-shadow: var(--shadow); }
.skip-link:focus { top: 12px; }
.section-shell { width: min(1200px, calc(100% - 40px)); margin-inline: auto; }
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(255,255,255,.94); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); box-shadow: 0 8px 24px rgba(8,119,201,.08); }
.topbar { min-height: 76px; display: grid; grid-template-columns: 210px 1fr auto; align-items: center; gap: 28px; }
.brand-logo img { width: 176px; max-height: 52px; object-fit: contain; }
.nav-core { display: flex; align-items: center; justify-content: center; gap: clamp(20px, 3vw, 46px); min-width: 0; }
.nav-core a { position: relative; padding: 24px 0 20px; color: #1D2A3A; font-weight: 700; white-space: nowrap; }
.nav-core a:hover, .nav-core a.active { color: var(--primary); }
.nav-core a.active::after { content: ""; position: absolute; left: 50%; bottom: 10px; width: 28px; height: 3px; border-radius: 999px; background: var(--primary); transform: translateX(-50%); }
.main-btn { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 24px; border-radius: 999px; background: linear-gradient(135deg,#38C7FF 0%,#1CA8F6 48%,#0877C9 100%); color: #fff; font-weight: 800; box-shadow: 0 12px 26px rgba(8,119,201,.18); transition: transform .18s ease, box-shadow .18s ease; }
.main-btn:hover { transform: translateY(-2px); box-shadow: 0 16px 30px rgba(8,119,201,.24); }
.header-register { white-space: nowrap; justify-self: end; }
.menu-toggle { display: none; width: 42px; height: 42px; padding: 10px; border: 0; border-radius: 14px; background: var(--surface-soft); cursor: pointer; }
.menu-toggle span { display: block; height: 2px; margin: 5px 0; border-radius: 999px; background: var(--primary-dark); }
.channel-bar { border-top: 1px solid rgba(28,168,246,.1); border-bottom: 1px solid rgba(28,168,246,.1); background: rgba(234,247,255,.88); overflow-x: auto; white-space: nowrap; scrollbar-width: thin; }
.channel-inner { display: flex; gap: 8px; padding-top: 10px; padding-bottom: 10px; }
.channel-bar a { flex: 0 0 auto; padding: 6px 13px; border-radius: 999px; color: var(--muted); font-size: 14px; }
.channel-bar a:hover, .channel-bar a.active { color: var(--primary-dark); background: rgba(28,168,246,.1); }
.site-main { min-height: 60vh; }
.banner-slider { width: min(1200px, calc(100% - 40px)); height: clamp(280px, 31vw, 380px); margin: 24px auto 34px; border-radius: var(--radius); background: #fff; box-shadow: 0 16px 40px rgba(8,119,201,.10); overflow: hidden; position: relative; z-index: 1; }
.banner-slider .slide { display: none; width: 100%; height: 100%; }
.banner-slider .slide.active { display: block; }
.banner-slider img { width: 100%; height: 100%; object-fit: contain; background: #fff; }
.slider-arrow { position: absolute; top: 50%; z-index: 3; width: 44px; height: 44px; border: 0; border-radius: 999px; background: rgba(255,255,255,.9); color: var(--primary); box-shadow: 0 8px 20px rgba(8,119,201,.14); transform: translateY(-50%); cursor: pointer; font-size: 26px; }
.slider-arrow.prev { left: 16px; }
.slider-arrow.next { right: 16px; }
.slider-dots { position: absolute; left: 50%; bottom: 14px; z-index: 3; display: flex; gap: 8px; transform: translateX(-50%); }
.slider-dots button { width: 10px; height: 10px; padding: 0; border: 0; border-radius: 50%; background: rgba(28,168,246,.26); cursor: pointer; }
.slider-dots button.active { background: var(--primary); box-shadow: 0 0 0 4px rgba(255,255,255,.7); }
.section-kicker, .num, .badge, .label, .tag { color: var(--primary); font-weight: 800; letter-spacing: .04em; }
h1,h2,h3,.section-title { color: var(--primary-dark); line-height: 1.3; }
h1 { margin: 10px 0 18px; font-size: clamp(32px, 5vw, 58px); }
h2 { margin: 8px 0 16px; font-size: clamp(24px, 3.2vw, 36px); }
h3 { margin: 0 0 10px; font-size: 20px; }
p { margin: 0 0 14px; }
.text-link { color: var(--primary-dark); font-weight: 800; }
.text-link:hover { color: var(--primary); }
.home-intro, .inner-hero { margin-top: 26px; margin-bottom: 40px; }
.home-intro { display: grid; grid-template-columns: 1.12fr .88fr; gap: 34px; align-items: center; padding: 42px; border-radius: var(--radius); background: linear-gradient(135deg,#fff 0%,#EDF8FF 100%); border: 1px solid rgba(28,168,246,.12); box-shadow: var(--shadow); }
.home-intro .content-img { width: 100%; max-height: 300px; object-fit: contain; border-radius: 18px; background: #fff; }
.inner-hero { display: grid; grid-template-columns: 1.12fr .88fr; align-items: center; gap: 38px; padding: 46px; border-radius: 28px; background: linear-gradient(135deg,#FFFFFF 0%,#EAF7FF 100%); box-shadow: var(--shadow); border: 1px solid rgba(28,168,246,.12); }
.hero-copy p { font-size: 17px; color: var(--muted); max-width: 760px; }
.hero-visual { border-radius: 20px; background: #fff; padding: 18px; box-shadow: 0 12px 34px rgba(8,119,201,.08); }
.hero-visual img { width: 100%; max-height: 300px; object-fit: contain; }
.section-heading { margin-bottom: 24px; max-width: 760px; }
.section-heading p { color: var(--muted); }
.quick-nav { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 36px; }
.quick-nav a { display: block; padding: 18px 20px; border-radius: 18px; background: #fff; border: 1px solid rgba(28,168,246,.12); box-shadow: 0 10px 28px rgba(8,119,201,.06); }
.quick-nav strong { display: block; color: var(--primary-dark); margin-bottom: 4px; }
.quick-nav span { display: block; color: var(--muted); font-size: 14px; }
.intro-strip { margin-bottom: 42px; padding: 28px 32px; border-radius: var(--radius); background: linear-gradient(120deg,#FFFFFF 0%,#EAF7FF 52%,#F2FAFF 100%); border: 1px solid rgba(28,168,246,.12); }
.compact-grid, .info-board, .content-grid, .review-grid, .point-grid { display: grid; gap: 20px; }
.compact-grid, .info-board { grid-template-columns: repeat(4, 1fr); margin-bottom: 50px; }
.content-grid.two { grid-template-columns: repeat(2, 1fr); }
.content-grid.three { grid-template-columns: repeat(3, 1fr); }
.card, .zone-card, .info-card, .review-card { background: #fff; border: 1px solid rgba(28,168,246,.12); box-shadow: var(--shadow); border-radius: 20px; }
.card, .info-card, .review-card { padding: 26px; }
.info-card .num { display: inline-flex; width: 42px; height: 42px; align-items: center; justify-content: center; border-radius: 14px; background: var(--surface-soft); margin-bottom: 16px; }
.card p, .info-card p, .review-card p { color: var(--muted); }
.zone-card { overflow: hidden; }
.zone-card img { width: 100%; height: 180px; object-fit: contain; padding: 14px; background: #fff; }
.zone-body { padding: 24px; }
.content-band { padding: 64px 0; }
.soft-band { background: linear-gradient(180deg,rgba(234,247,255,.62),rgba(244,251,255,.4)); border-top: 1px solid rgba(28,168,246,.08); border-bottom: 1px solid rgba(28,168,246,.08); }
.prose-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.prose-grid p { color: var(--muted); padding: 24px; border-radius: 18px; background: #fff; border: 1px solid rgba(28,168,246,.10); box-shadow: 0 10px 28px rgba(8,119,201,.05); }
.point-grid { grid-template-columns: repeat(3, 1fr); }
.section-link { margin-top: 22px; }
.review-grid { grid-template-columns: repeat(3, 1fr); }
.review-card { margin: 0; }
.review-card p { margin: 0; }
.faq-list { display: grid; gap: 14px; }
details { background: #fff; border: 1px solid rgba(28,168,246,.12); border-radius: 16px; padding: 18px 20px; box-shadow: 0 8px 24px rgba(8,119,201,.05); }
summary { cursor: pointer; color: var(--primary-dark); font-weight: 800; }
details p { margin: 12px 0 0; color: var(--muted); }
.compliance-strip { margin-top: 20px; padding: 30px 0; background: #EAF7FF; border-top: 1px solid rgba(28,168,246,.12); }
.compliance-strip h2 { font-size: 24px; margin-bottom: 10px; }
.compliance-strip p { margin: 0; color: var(--muted); }
.floating-service { position: fixed; right: 18px; top: 42%; z-index: 60; display: grid; gap: 8px; }
.floating-service a, .floating-service button { width: 86px; min-height: 42px; display: flex; align-items: center; justify-content: center; border-radius: 14px; border: 1px solid rgba(28,168,246,.14); background: #fff; color: var(--primary-dark); box-shadow: 0 14px 30px rgba(8,119,201,.10); cursor: pointer; font-size: 14px; }
.floating-service .register-link { color: #fff; border: 0; background: linear-gradient(135deg,#38C7FF 0%,#1CA8F6 48%,#0877C9 100%); }
.site-footer { margin-top: 0; padding: 52px 0 20px; background: var(--footer); color: #EAF8FF; }
.footer-grid { display: grid; grid-template-columns: 1.5fr repeat(3,1fr); gap: 38px; }
.footer-brand img { width: 180px; max-height: 58px; object-fit: contain; margin-bottom: 18px; filter: brightness(0) invert(1); opacity: .96; }
.site-footer h2 { color: #fff; font-size: 18px; margin-top: 0; }
.site-footer a { display: block; margin: 8px 0; color: #CFEFFF; }
.site-footer a:hover { color: #fff; }
.site-footer p { color: #B7D8EA; }
.footer-bottom { display: flex; justify-content: space-between; gap: 24px; margin-top: 34px; padding-top: 20px; border-top: 1px solid rgba(255,255,255,.12); font-size: 14px; }
.mobile-drawer { position: fixed; inset: 0 auto 0 0; z-index: 220; width: min(84vw,320px); padding: 18px; background: #fff; box-shadow: 16px 0 44px rgba(8,42,70,.18); transform: translateX(-105%); transition: transform .2s ease; overflow-y: auto; }
.mobile-drawer.open { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 18px; padding-bottom: 14px; border-bottom: 1px solid rgba(28,168,246,.12); }
.drawer-head img { width: 150px; max-height: 48px; object-fit: contain; }
.drawer-close { width: 40px; height: 40px; border: 0; border-radius: 12px; background: var(--surface-soft); color: var(--primary-dark); font-size: 26px; cursor: pointer; }
.mobile-drawer nav { display: grid; grid-template-columns: repeat(2,1fr); gap: 8px; }
.mobile-drawer nav a { padding: 10px 12px; border-radius: 12px; color: var(--muted); background: #F7FCFF; }
.mobile-drawer nav a.active, .mobile-drawer nav a:hover { color: var(--primary-dark); background: var(--surface-soft); }
.drawer-overlay { position: fixed; inset: 0; z-index: 210; background: rgba(8,42,70,.42); opacity: 0; transition: opacity .18s ease; }
.drawer-overlay.show { opacity: 1; }
.mobile-bottom-nav { display: none; }
@media (max-width: 1180px) {
  .floating-service { display: none; }
  .topbar { grid-template-columns: 190px 1fr auto; gap: 18px; }
  .nav-core { gap: 20px; }
}
@media (max-width: 900px) {
  :root { --header-h: 72px; }
  .section-shell { width: min(100% - 28px, 1200px); }
  .topbar { min-height: 70px; grid-template-columns: 46px 1fr auto; gap: 12px; }
  .menu-toggle { display: block; }
  .brand-logo { justify-self: center; }
  .brand-logo img { width: 150px; max-height: 46px; }
  .nav-core, .channel-bar { display: none; }
  .header-register { min-height: 40px; padding: 0 17px; }
  .home-intro, .inner-hero { grid-template-columns: 1fr; padding: 30px; }
  .compact-grid, .info-board { grid-template-columns: repeat(2,1fr); }
  .content-grid.three, .point-grid, .review-grid { grid-template-columns: repeat(2,1fr); }
  .quick-nav { grid-template-columns: repeat(2,1fr); }
  .footer-grid { grid-template-columns: repeat(2,1fr); }
  .banner-slider { height: clamp(220px, 34vw, 300px); }
}
@media (max-width: 640px) {
  body { padding-bottom: calc(72px + env(safe-area-inset-bottom)); }
  h1 { font-size: 34px; }
  h2 { font-size: 27px; }
  .topbar { min-height: 64px; }
  .brand-logo img { width: 126px; }
  .header-register { min-width: 68px; padding: 0 14px; }
  .banner-slider { width: calc(100% - 24px); height: clamp(160px, 52vw, 220px); margin: 14px auto 24px; border-radius: 16px; }
  .slider-arrow { width: 38px; height: 38px; font-size: 22px; }
  .slider-arrow.prev { left: 8px; }
  .slider-arrow.next { right: 8px; }
  .home-intro, .inner-hero { margin-top: 16px; margin-bottom: 28px; padding: 24px 20px; border-radius: 20px; }
  .home-intro .content-img, .hero-visual img { max-height: 220px; }
  .quick-nav, .compact-grid, .info-board, .content-grid.two, .content-grid.three, .point-grid, .review-grid, .prose-grid, .footer-grid { grid-template-columns: 1fr; }
  .quick-nav { gap: 10px; }
  .content-band { padding: 44px 0; }
  .card, .info-card, .review-card { padding: 22px; }
  .zone-card img { height: 160px; }
  .footer-bottom { display: block; }
  .mobile-bottom-nav { position: fixed; left: 0; right: 0; bottom: 0; z-index: 180; display: grid; grid-template-columns: repeat(4,1fr); padding: 8px 8px calc(8px + env(safe-area-inset-bottom)); background: rgba(255,255,255,.97); border-top: 1px solid rgba(28,168,246,.14); box-shadow: 0 -10px 28px rgba(8,119,201,.10); }
  .mobile-bottom-nav a { padding: 8px 4px; text-align: center; color: var(--muted); border-radius: 12px; font-size: 14px; }
  .mobile-bottom-nav a.active { color: var(--primary-dark); background: var(--surface-soft); font-weight: 800; }
}