:root{
  --page-bg:#E6EBF2;
  --nav-bg:#F5F7FB;
  --panel:#FFFFFF;
  --panel-soft:#F5F7FB;
  --panel-blue:#EEF2F7;
  --panel-line:#DDE4EE;
  --title:#289CFF;
  --nav-text:#4E5F7A;
  --text:#243447;
  --muted:#66788A;
  --soft:#8A9AAF;
  --footer:#243447;
  --footer-text:#EAF3FF;
  --shadow:0 14px 36px rgba(56,92,138,0.10);
  --shadow-lg:0 18px 40px rgba(56,92,138,0.12);
  --radius:20px;
  --btn:linear-gradient(180deg, #32D1F6 0%, #27B9F4 35%, #249BFF 100%);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
  background:#E6EBF2;
  color:#243447;
  line-height:1.72;
  padding-top:82px;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
.site-header{
  background:#F5F7FB;
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:1000;
  box-shadow:0 10px 28px rgba(36,52,71,0.08);
}
.header-inner{
  max-width:1200px;
  margin:0 auto;
  height:82px;
  padding:0 20px;
  display:flex;
  align-items:center;
  gap:20px;
}
.brand-logo,.drawer-logo,.footer-logo{display:flex;align-items:center;flex-shrink:0}
.brand-logo img{height:44px;width:auto;max-width:168px;object-fit:contain}
.nav{display:flex;align-items:center;gap:4px;flex:1;overflow-x:auto;scrollbar-width:none}
.nav::-webkit-scrollbar{display:none}
.nav a{
  color:#4E5F7A;
  padding:10px 9px;
  border-radius:999px;
  font-size:15px;
  font-weight:700;
  white-space:nowrap;
  transition:.2s ease;
}
.nav a:hover,.nav a.active{color:#289CFF;background:rgba(40,156,255,0.10)}
.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;
  font-weight:800;
  box-shadow:0 10px 22px rgba(36,155,255,.22);
  border:0;
  cursor:pointer;
}
.header-btn{flex-shrink:0}
.menu-toggle{display:none;background:transparent;border:0;width:42px;height:42px;padding:8px;cursor:pointer}
.menu-toggle span{display:block;height:3px;border-radius:6px;background:#4E5F7A;margin:5px 0}
.mobile-mask{position:fixed;inset:0;background:rgba(36,52,71,.42);z-index:1001}
.mobile-drawer{
  position:fixed;
  top:0;
  right:-320px;
  width:min(320px,86vw);
  height:100vh;
  background:#F5F7FB;
  z-index:1002;
  padding:18px;
  transition:.25s ease;
  box-shadow:-18px 0 42px rgba(36,52,71,.18);
  overflow-y:auto;
}
.mobile-drawer.open{right:0}
.drawer-open{overflow:hidden}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-logo img{height:42px;width:auto;max-width:160px;object-fit:contain}
.drawer-close{border:0;background:#EEF2F7;color:#4E5F7A;width:38px;height:38px;border-radius:50%;font-size:26px;line-height:1;cursor:pointer}
.drawer-links{display:grid;gap:8px}
.drawer-links a{padding:12px 14px;border-radius:14px;color:#4E5F7A;font-weight:700;background:#FFFFFF}
.drawer-links a.active{color:#289CFF;background:rgba(40,156,255,.12)}
.drawer-btn{width:100%;margin-top:18px}
.main{width:100%}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.section{max-width:1200px;margin:0 auto 34px;padding:0 20px}
.section-panel{
  background:rgba(255,255,255,0.82);
  border:1px solid rgba(40,156,255,0.12);
  border-radius:24px;
  box-shadow:var(--shadow);
  padding:32px;
}
.section-head{margin-bottom:22px;max-width:820px}
.eyebrow{color:#289CFF;font-weight:800;letter-spacing:.04em;margin:0 0 8px;font-size:14px}
h1,h2,h3,.section-title{color:#289CFF;line-height:1.25}
h1{font-size:clamp(32px,4vw,52px);margin:0 0 16px}
h2,.section-title{font-size:clamp(24px,3vw,34px);margin:0 0 12px}
h3{font-size:20px;margin:0 0 10px}
p{margin:0 0 12px;color:#243447}
.muted{color:#66788A}
.soft{color:#8A9AAF}
.text-link{color:#289CFF;font-weight:800}
.banner-slider{
  max-width:1200px;
  margin:28px auto 36px;
  border-radius:20px;
  background:#FFFFFF;
  box-shadow:0 18px 40px rgba(56,92,138,0.12);
  overflow:hidden;
  position:relative;
}
.slider-viewport{position:relative;height:clamp(260px,44vw,520px);background:#FFFFFF}
.slide{position:absolute;inset:0;opacity:0;pointer-events:none;transition:opacity .45s ease;display:flex;align-items:center;justify-content:center;background:#FFFFFF}
.slide.active{opacity:1;pointer-events:auto}
.banner-slider img{width:100%;height:100%;object-fit:contain;background:#FFFFFF}
.slide-copy{
  position:absolute;
  left:28px;
  bottom:28px;
  width:min(480px,calc(100% - 56px));
  padding:22px;
  border-radius:18px;
  background:rgba(245,247,251,.86);
  backdrop-filter:blur(8px);
  box-shadow:0 12px 30px rgba(36,52,71,.10);
}
.slide-copy strong{display:block;color:#289CFF;font-size:clamp(22px,3vw,32px);line-height:1.25;margin-bottom:8px}
.slide-copy p{color:#4E5F7A;margin-bottom:14px}
.slider-arrow{
  position:absolute;
  top:50%;
  transform:translateY(-50%);
  width:44px;
  height:44px;
  border-radius:50%;
  border:0;
  background:rgba(245,247,251,.9);
  color:#289CFF;
  font-size:28px;
  font-weight:700;
  cursor:pointer;
  box-shadow:0 8px 18px rgba(36,52,71,.12);
}
.slider-arrow.prev{left:18px}
.slider-arrow.next{right:18px}
.slider-dots{position:absolute;left:0;right:0;bottom:14px;display:flex;justify-content:center;gap:8px;z-index:3}
.slider-dot{width:10px;height:10px;border-radius:50%;border:0;background:rgba(40,156,255,.28);cursor:pointer;padding:0}
.slider-dot.active{background:#289CFF;width:24px;border-radius:999px}
.hero-grid,.split-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:28px;align-items:center}
.hero-card,.card,.zone-card,.info-card,.review-card{
  background:rgba(255,255,255,0.92);
  border:1px solid rgba(40,156,255,0.16);
  box-shadow:0 14px 36px rgba(56,92,138,0.10);
  border-radius:20px;
}
.hero-card{padding:34px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:20px}
.secondary-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 20px;border-radius:999px;background:#EEF2F7;color:#289CFF;font-weight:800;border:1px solid rgba(40,156,255,.18)}
.media-card{padding:12px;background:#FFFFFF;border-radius:22px;box-shadow:var(--shadow);border:1px solid rgba(40,156,255,.12)}
.content-img,.zone-card img,.app-section img,.banner-slider img{max-width:100%;height:auto}
.content-img{width:100%;max-height:420px;object-fit:contain;background:#FFFFFF;border-radius:16px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.card,.info-card,.review-card{padding:22px}
.card .num,.tag{color:#289CFF;font-weight:900;display:inline-flex;margin-bottom:8px}
.card p,.info-card p,.review-card p{color:#66788A}
.zone-card{overflow:hidden;background:#FFFFFF}
.zone-card .zone-body{padding:20px}
.zone-card img{width:100%;height:220px;object-fit:contain;background:#FFFFFF;padding:10px}
.notice-box{background:#EEF2F7;border:1px solid rgba(40,156,255,.16);border-radius:20px;padding:22px;color:#4E5F7A}
.notice-box strong{color:#289CFF}
.steps{counter-reset:step}
.step-card{position:relative;padding-left:58px}
.step-card:before{counter-increment:step;content:counter(step);position:absolute;left:20px;top:22px;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:rgba(40,156,255,.12);color:#289CFF;font-weight:900}
.review-card{background:rgba(255,255,255,.94)}
.review-card strong{display:block;color:#289CFF;margin-bottom:8px}
.faq-list{display:grid;gap:14px}
.faq-item{background:#FFFFFF;border:1px solid rgba(40,156,255,.14);border-radius:18px;padding:20px;box-shadow:0 10px 24px rgba(56,92,138,.08)}
.faq-item h3{font-size:18px}
.inner-hero{max-width:1200px;margin:28px auto 34px;padding:0 20px}
.inner-hero .hero-card{min-height:100%}
.breadcrumb{font-size:14px;color:#66788A;margin-bottom:12px}
.breadcrumb a{color:#289CFF;font-weight:800}
.kv-list{display:grid;gap:12px;margin-top:14px}
.kv-list li{list-style:none;padding:14px 16px;border-radius:14px;background:#F5F7FB;color:#4E5F7A}
.kv-list strong{color:#289CFF}
.app-section{display:grid;grid-template-columns:.95fr 1.05fr;gap:24px;align-items:center}
.app-section img{width:100%;max-height:360px;object-fit:contain;background:#FFFFFF;border-radius:18px}
.table-like{display:grid;gap:10px}
.table-row{display:grid;grid-template-columns:180px 1fr;gap:14px;padding:14px 16px;border-radius:14px;background:#FFFFFF;border:1px solid rgba(40,156,255,.12)}
.table-row strong{color:#289CFF}
.site-footer{background:#243447;color:#EAF3FF;margin-top:42px}
.footer-inner{max-width:1200px;margin:0 auto;padding:42px 20px;display:grid;grid-template-columns:1fr 1.6fr;gap:32px}
.footer-logo img{height:48px;width:auto;max-width:180px;object-fit:contain;margin-bottom:16px}
.footer-brand p{color:#EAF3FF;opacity:.88;max-width:420px}
.footer-register{margin-top:12px}
.footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.footer-links h3{color:#EAF3FF;font-size:18px;margin-bottom:12px}
.footer-links a{display:block;color:#EAF3FF;opacity:.82;margin:8px 0}
.footer-links a:hover{opacity:1;color:#FFFFFF}
.footer-notice{border-top:1px solid rgba(234,243,255,.14);max-width:1200px;margin:0 auto;padding:18px 20px 28px}
.footer-notice p{color:#EAF3FF;opacity:.86;font-size:14px;margin-bottom:8px}
@media (max-width:1100px){
  .nav a{font-size:14px;padding:9px 7px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  body{padding-top:72px}
  .header-inner{height:72px}
  .nav,.header-btn{display:none}
  .menu-toggle{display:block;margin-left:auto}
  .brand-logo img{height:40px}
  .hero-grid,.split-grid,.app-section{grid-template-columns:1fr}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .footer-inner{grid-template-columns:1fr}
  .slide-copy{position:relative;left:auto;bottom:auto;width:auto;margin:14px;background:#F5F7FB}
  .slider-viewport{height:auto;min-height:0;padding-bottom:0;display:block}
  .slide{position:relative;display:none;opacity:1}
  .slide.active{display:block}
  .slide img{height:auto;max-height:420px}
  .slider-arrow{top:38%}
}
@media (max-width:640px){
  .section,.container,.inner-hero{padding:0 14px}
  .section-panel,.hero-card{padding:22px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .slider-arrow{width:38px;height:38px;font-size:24px}
  .slider-arrow.prev{left:10px}
  .slider-arrow.next{right:10px}
  .slide-copy{padding:18px}
  .footer-links{grid-template-columns:1fr}
  .table-row{grid-template-columns:1fr;gap:4px}
  .zone-card img{height:180px}
}