:root {
  --bg: #E6EBF2;
  --surface: #FFFFFF;
  --surface-soft: #F5F7FB;
  --surface-alt: #EEF2F7;
  --surface-muted: #DDE4EE;
  --primary: #289CFF;
  --text: #243447;
  --text-soft: #66788A;
  --text-muted: #8A9AAF;
  --nav: #4E5F7A;
  --border: rgba(40, 156, 255, 0.16);
  --shadow: 0 14px 36px rgba(56, 92, 138, 0.12);
  --radius: 20px;
  --header-height: 76px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input, textarea, select { font: inherit; }
button { color: inherit; }
.shell { width: min(1200px, calc(100% - 40px)); margin-inline: auto; }
.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 {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}
.logo { flex: 0 0 auto; display: inline-flex; align-items: center; min-width: 124px; }
.logo img { width: auto; max-width: 150px; max-height: 52px; object-fit: contain; }
.nav-wrap { flex: 1 1 auto; min-width: 0; display: flex; justify-content: center; }
.nav { display: flex; align-items: center; gap: 20px; white-space: nowrap; flex-wrap: nowrap; }
.nav-link, .dropdown-trigger {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  min-height: 44px;
  padding: 0 2px;
  border: 0;
  background: transparent;
  color: var(--nav);
  font-weight: 650;
  cursor: pointer;
}
.nav-link::after, .dropdown > .dropdown-trigger::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  border-radius: 999px;
  background: var(--primary);
  transform: scaleX(0);
  transition: transform .2s ease;
}
.nav-link:hover, .nav-link.active, .dropdown:hover > .dropdown-trigger, .dropdown.active > .dropdown-trigger { color: var(--primary); }
.nav-link:hover::after, .nav-link.active::after, .dropdown:hover > .dropdown-trigger::after, .dropdown.active > .dropdown-trigger::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: 10px 24px;
  border: 0;
  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;
  line-height: 1;
  transition: transform .2s ease, box-shadow .2s ease, filter .2s ease;
}
.main-btn:hover { transform: translateY(-1px); filter: brightness(1.03); box-shadow: 0 14px 28px rgba(36,155,255,0.30); }
.header-btn { min-width: 88px; }
.dropdown { position: relative; }
.dropdown-menu {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  min-width: 190px;
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translate(-50%, 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;
  transition: opacity .18s ease, transform .18s ease, visibility .18s ease;
}
.dropdown-menu-right { left: auto; right: 0; transform: translate(0, 8px); }
.dropdown-menu::before { content: ""; position: absolute; left: 0; right: 0; top: -12px; height: 12px; }
.dropdown-menu a {
  display: block;
  padding: 11px 14px;
  border-radius: 10px;
  color: var(--nav);
  font-weight: 600;
  white-space: nowrap;
}
.dropdown-menu a:hover { color: var(--primary); background: rgba(40,156,255,0.08); }
.dropdown:hover .dropdown-menu, .dropdown:focus-within .dropdown-menu, .dropdown.open .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}
.dropdown:hover .dropdown-menu-right, .dropdown:focus-within .dropdown-menu-right, .dropdown.open .dropdown-menu-right { transform: translate(0, 0); }
.mobile-menu-slot, .menu-toggle { display: none; }
.mobile-drawer, .drawer-overlay { display: none; }
.site-main { min-height: 60vh; }
.banner-slider {
  width: min(1200px, calc(100% - 40px));
  margin: 28px auto 42px;
  border-radius: 22px;
  background: #FFFFFF;
  box-shadow: 0 18px 40px rgba(56,92,138,0.12);
  overflow: hidden;
  position: relative;
}
.slider-track { position: relative; aspect-ratio: 16 / 6.2; background: #FFFFFF; }
.slide { position: absolute; inset: 0; opacity: 0; visibility: hidden; transition: opacity .45s ease, visibility .45s ease; }
.slide.active { opacity: 1; visibility: visible; }
.banner-slider img { 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: 4;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 50%;
  transform: translateY(-50%);
  background: rgba(36,52,71,.66);
  color: #FFFFFF;
  font-size: 30px;
  line-height: 1;
  cursor: pointer;
  display: grid;
  place-items: center;
}
.slider-arrow:hover { background: rgba(36,52,71,.82); }
.slider-prev { left: 18px; }
.slider-next { right: 18px; }
.slider-dots { position: absolute; left: 50%; bottom: 16px; z-index: 5; display: flex; gap: 9px; transform: translateX(-50%); }
.slider-dot { width: 10px; height: 10px; padding: 0; border: 2px solid rgba(255,255,255,.92); border-radius: 50%; background: rgba(36,52,71,.38); cursor: pointer; }
.slider-dot.active { width: 26px; border-radius: 999px; background: #FFFFFF; }
.section { padding: 34px 0; }
.section-soft { background: rgba(245,247,251,.62); border-block: 1px solid rgba(40,156,255,.08); }
.section-alt { background: rgba(238,242,247,.72); }
.section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 22px; }
.section-title, h1, h2, h3 { color: var(--primary); }
.section-title { margin: 0; font-size: clamp(26px, 4vw, 38px); line-height: 1.25; letter-spacing: -.02em; }
.section-lead { max-width: 760px; margin: 8px 0 0; color: var(--text-soft); }
.eyebrow { margin: 0 0 8px; color: var(--primary); font-size: 14px; font-weight: 800; letter-spacing: .12em; }
.hero-panel, .content-panel, .card, .zone-card, .info-card, .review-card, .faq-card {
  background: rgba(255,255,255,0.92);
  border: 1px solid var(--border);
  box-shadow: 0 14px 36px rgba(56,92,138,0.10);
}
.hero-panel { display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(280px, .92fr); gap: 34px; align-items: center; padding: clamp(24px, 5vw, 50px); border-radius: 26px; }
.hero-copy h1 { margin: 0 0 16px; font-size: clamp(34px, 5vw, 56px); line-height: 1.15; }
.hero-copy p { margin: 0 0 14px; color: var(--text-soft); font-size: 17px; }
.hero-actions { display: flex; align-items: center; gap: 18px; margin-top: 24px; flex-wrap: wrap; }
.text-link { color: var(--primary); font-weight: 750; }
.text-link:hover { text-decoration: underline; }
.hero-media, .content-media { border-radius: 20px; overflow: hidden; background: var(--surface-alt); }
.hero-media img, .content-media img, .zone-card img, .app-section img, .content-img { width: 100%; height: auto; object-fit: contain; }
.grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 22px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.card, .zone-card, .info-card, .review-card, .faq-card { border-radius: 18px; padding: 24px; }
.card h3, .zone-card h3, .info-card h3, .review-card h3 { margin: 0 0 10px; font-size: 21px; }
.card p, .zone-card p, .info-card p, .review-card p { margin: 0; color: var(--text-soft); }
.card .text-link, .zone-card .text-link { display: inline-block; margin-top: 14px; }
.entry-card { position: relative; overflow: hidden; }
.entry-card::before { content: ""; position: absolute; inset: 0 auto auto 0; width: 100%; height: 4px; background: linear-gradient(90deg, #32D1F6, #249BFF); }
.media-card { padding: 0; overflow: hidden; }
.media-card img { width: 100%; aspect-ratio: 16 / 10; object-fit: contain; background: var(--surface-alt); }
.media-card-body { padding: 22px; }
.split-section { display: grid; grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr); gap: 30px; align-items: center; }
.split-section.reverse { grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); }
.split-section.reverse .content-media { order: 2; }
.content-panel { border-radius: 22px; padding: clamp(24px, 4vw, 42px); }
.content-panel h2 { margin-top: 0; font-size: clamp(28px, 4vw, 40px); line-height: 1.25; }
.content-panel p { color: var(--text-soft); }
.feature-list { display: grid; gap: 14px; margin: 20px 0 0; padding: 0; list-style: none; }
.feature-list li { position: relative; padding-left: 28px; color: var(--text-soft); }
.feature-list li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--primary); font-weight: 900; }
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px; }
.step { counter-increment: step; padding: 22px; border-radius: 18px; background: rgba(255,255,255,.84); border: 1px solid var(--border); }
.step::before { content: counter(step, decimal-leading-zero); display: block; margin-bottom: 10px; color: var(--primary); font-weight: 900; font-size: 24px; }
.step h3 { margin: 0 0 8px; font-size: 19px; }
.step p { margin: 0; color: var(--text-soft); }
.review-card blockquote { margin: 0; color: var(--text-soft); }
.review-card footer { margin-top: 14px; color: var(--primary); font-weight: 750; }
.faq-list { display: grid; gap: 14px; }
details.faq-card { padding: 0; overflow: hidden; }
details.faq-card summary { list-style: none; cursor: pointer; padding: 20px 56px 20px 22px; position: relative; color: var(--text); font-weight: 750; }
details.faq-card summary::-webkit-details-marker { display: none; }
details.faq-card summary::after { content: "+"; position: absolute; right: 22px; top: 50%; transform: translateY(-50%); color: var(--primary); font-size: 26px; font-weight: 500; }
details.faq-card[open] summary::after { content: "−"; }
details.faq-card p { margin: 0; padding: 0 22px 22px; color: var(--text-soft); }
.page-hero { padding: 44px 0 24px; }
.page-hero .hero-panel { min-height: 420px; }
.breadcrumbs { display: flex; gap: 8px; align-items: center; margin-bottom: 14px; color: var(--text-muted); font-size: 14px; }
.breadcrumbs a { color: var(--primary); }
.notice-strip { margin-top: 24px; padding: 18px 22px; border-radius: 16px; background: rgba(40,156,255,.08); border: 1px solid rgba(40,156,255,.14); color: var(--text-soft); }
.tag-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.tag { padding: 7px 12px; border-radius: 999px; background: rgba(40,156,255,.10); color: var(--primary); font-weight: 700; font-size: 14px; }
.site-footer { margin-top: 54px; padding: 54px 0 0; background: #243447; color: #EAF3FF; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 44px; }
.footer-logo { display: inline-flex; padding: 10px 14px; border-radius: 14px; background: #FFFFFF; }
.footer-logo img { max-height: 46px; width: auto; }
.footer-brand p { max-width: 560px; color: rgba(234,243,255,.78); }
.footer-links { display: grid; align-content: start; gap: 8px; }
.footer-links h2 { margin: 0 0 8px; color: #FFFFFF; font-size: 18px; }
.footer-links a { color: rgba(234,243,255,.78); }
.footer-links a:hover { color: #FFFFFF; }
.compliance-note { margin-top: 34px; padding: 20px 0; border-top: 1px solid rgba(234,243,255,.12); border-bottom: 1px solid rgba(234,243,255,.12); color: rgba(234,243,255,.72); }
.compliance-note p { margin: 0; }
.footer-bottom { min-height: 70px; display: flex; justify-content: space-between; align-items: center; gap: 20px; color: rgba(234,243,255,.68); }
.footer-bottom a { color: #FFFFFF; }
@media (max-width: 1080px) {
  .nav { gap: 14px; }
  .nav-link, .dropdown-trigger { font-size: 14px; }
  .header-inner { gap: 16px; }
  .logo { min-width: 112px; }
  .logo img { max-width: 132px; }
  .header-btn { min-width: 78px; padding-inline: 18px; }
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 860px) {
  :root { --header-height: 68px; }
  .shell { width: min(100% - 28px, 1200px); }
  .header-inner { display: grid; grid-template-columns: 88px 1fr 88px; gap: 10px; }
  .mobile-menu-slot { display: flex; justify-content: flex-start; }
  .menu-toggle { display: inline-grid; place-items: center; gap: 4px; width: 42px; height: 42px; padding: 10px; border: 0; border-radius: 12px; background: rgba(40,156,255,.09); cursor: pointer; }
  .menu-toggle span { width: 20px; height: 2px; border-radius: 999px; background: var(--nav); }
  .logo { min-width: 0; justify-content: center; }
  .logo img { max-height: 44px; max-width: 128px; }
  .nav-wrap { display: none; }
  .header-action { justify-content: flex-end; }
  .header-btn { min-width: 78px; min-height: 40px; padding-inline: 17px; }
  .mobile-drawer { display: block; position: fixed; top: 0; left: 0; z-index: 12000; width: min(84vw, 320px); height: 100dvh; padding: 18px; background: #FFFFFF; box-shadow: 20px 0 50px rgba(36,52,71,.18); transform: translateX(-105%); transition: transform .26s ease; overflow-y: auto; }
  .drawer-overlay { display: block; position: fixed; inset: 0; z-index: 11000; background: rgba(36,52,71,.42); opacity: 0; visibility: hidden; transition: opacity .24s ease, visibility .24s ease; }
  .drawer-open { overflow: hidden; }
  .drawer-open .mobile-drawer { transform: translateX(0); }
  .drawer-open .drawer-overlay { opacity: 1; visibility: visible; }
  .drawer-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-bottom: 16px; border-bottom: 1px solid rgba(40,156,255,.12); }
  .drawer-logo img { max-height: 46px; width: auto; }
  .drawer-close { width: 40px; height: 40px; border: 0; border-radius: 50%; background: var(--surface-alt); color: var(--nav); font-size: 28px; cursor: pointer; }
  .drawer-nav { display: grid; gap: 5px; padding: 14px 0 28px; }
  .drawer-nav a { padding: 11px 13px; border-radius: 10px; color: var(--nav); font-weight: 650; }
  .drawer-nav a:hover { color: var(--primary); background: rgba(40,156,255,.08); }
  .banner-slider { width: min(100% - 28px, 1200px); margin-top: 18px; border-radius: 16px; }
  .slider-track { aspect-ratio: 16 / 7.4; }
  .hero-panel, .split-section, .split-section.reverse { grid-template-columns: 1fr; }
  .split-section.reverse .content-media { order: 0; }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-hero .hero-panel { min-height: auto; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 600px) {
  .shell { width: min(100% - 22px, 1200px); }
  .header-inner { width: calc(100% - 18px); grid-template-columns: 76px 1fr 76px; }
  .header-btn { min-width: 72px; padding-inline: 14px; font-size: 14px; }
  .logo img { max-width: 112px; }
  .banner-slider { width: calc(100% - 22px); margin-bottom: 28px; }
  .slider-track { aspect-ratio: 16 / 8.4; }
  .slider-arrow { width: 36px; height: 36px; font-size: 24px; }
  .slider-prev { left: 10px; }
  .slider-next { right: 10px; }
  .slider-dots { bottom: 10px; gap: 7px; }
  .slider-dot { width: 8px; height: 8px; }
  .slider-dot.active { width: 20px; }
  .section { padding: 26px 0; }
  .section-head { align-items: flex-start; flex-direction: column; margin-bottom: 18px; }
  .hero-panel, .content-panel { padding: 22px; border-radius: 18px; }
  .hero-copy h1 { font-size: 34px; }
  .grid-2, .grid-3, .grid-4, .steps { grid-template-columns: 1fr; }
  .card, .zone-card, .info-card, .review-card { padding: 20px; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-brand { grid-column: auto; }
  .footer-bottom { align-items: flex-start; flex-direction: column; justify-content: center; padding-block: 18px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}