:root{
  --body-bg:#E6EBF2;
  --nav-bg:#F5F7FB;
  --white:#FFFFFF;
  --soft:#EEF2F7;
  --soft-2:#DDE4EE;
  --blue:#289CFF;
  --nav-text:#4E5F7A;
  --text:#243447;
  --muted:#66788A;
  --hint:#8A9AAF;
  --footer:#243447;
  --footer-text:#EAF3FF;
  --card:rgba(255,255,255,0.92);
  --border:rgba(40,156,255,0.16);
  --shadow:0 14px 36px rgba(56,92,138,0.12);
  --btn:linear-gradient(180deg,#32D1F6 0%,#27B9F4 35%,#249BFF 100%);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--body-bg);color:var(--text);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.75;overflow-x:hidden}
a{color:var(--blue);text-decoration:none;transition:.2s ease}
a:hover{color:#1E90F0}
img{max-width:100%;height:auto;display:block}
.container{width:min(1200px,calc(100% - 32px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:9999;background:var(--nav-bg);backdrop-filter:blur(10px);box-shadow:0 8px 24px rgba(56,92,138,0.10)}
.desktop-header{min-height:76px;display:flex;align-items:center;gap:22px}
.brand-logo img{width:138px;max-height:52px;object-fit:contain}
.nav{display:flex;align-items:center;gap:5px;flex:1;justify-content:center;flex-wrap:wrap}
.nav a{position:relative;color:var(--nav-text);font-size:14px;font-weight:700;padding:24px 8px 19px;white-space:nowrap}
.nav a::after{content:"";position:absolute;left:10px;right:10px;bottom:12px;height:3px;border-radius:999px;background:transparent;transition:.2s ease}
.nav a.active,.nav a:hover{color:var(--blue)}
.nav a.active::after,.nav a:hover::after{background:var(--blue)}
.main-btn{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 24px;border-radius:999px;background:var(--btn);color:#fff!important;font-weight:800;box-shadow:0 10px 24px rgba(36,155,255,0.25);border:0;letter-spacing:.04em;white-space:nowrap}
.main-btn:hover{background:linear-gradient(180deg,#48D9F7 0%,#1E90F0 100%);transform:translateY(-1px);box-shadow:0 14px 28px rgba(36,155,255,0.32)}
.header-btn{min-width:78px;padding:0 20px}
.mobile-topbar{display:none;height:66px;align-items:center;justify-content:space-between;padding:0 14px;background:var(--nav-bg)}
.mobile-logo img{width:132px;max-height:46px;object-fit:contain}
.menu-toggle{width:42px;height:42px;border:0;background:transparent;display:flex;flex-direction:column;justify-content:center;gap:6px;padding:0;cursor:pointer}
.menu-toggle span{width:24px;height:3px;border-radius:999px;background:#4E5F7A;display:block;margin-left:3px}
.drawer-mask{position:fixed;inset:0;background:rgba(0,0,0,.42);z-index:10000;opacity:0;visibility:hidden;transition:.25s ease}
.drawer-mask.show{opacity:1;visibility:visible}
.mobile-drawer{position:fixed;top:0;left:0;width:84vw;max-width:320px;height:100vh;background:#fff;z-index:10001;transform:translateX(-105%);transition:.28s ease;box-shadow:18px 0 38px rgba(36,52,71,.22);overflow-y:auto}
.mobile-drawer.open{transform:translateX(0)}
.drawer-head{height:76px;background:#F5F7FB;display:flex;align-items:center;justify-content:space-between;padding:0 18px;border-bottom:1px solid rgba(40,156,255,.12)}
.drawer-logo img{width:132px;max-height:48px;object-fit:contain}
.drawer-close{width:38px;height:38px;border:0;background:#EEF2F7;border-radius:50%;color:#4E5F7A;font-size:28px;line-height:1;cursor:pointer}
.drawer-nav{display:flex;flex-direction:column;padding:16px}
.drawer-nav a{color:#4E5F7A;font-weight:800;padding:13px 14px;border-radius:14px;border-bottom:1px solid rgba(40,156,255,.08)}
.drawer-nav a.active,.drawer-nav a:hover{background:#EEF7FF;color:#289CFF}
.drawer-open{overflow:hidden}
.main{padding-bottom:44px}
.banner-slider{max-width:1200px;margin:28px auto 36px;border-radius:20px;background:#fff;box-shadow:0 18px 40px rgba(56,92,138,.12);overflow:hidden;position:relative;aspect-ratio:16/6.1;min-height:260px}
.slide{position:absolute;inset:0;opacity:0;transition:opacity .45s ease;display:flex;align-items:center;justify-content:center;background:#fff}
.slide.active{opacity:1;z-index:1}
.banner-slider img{width:100%;height:100%;object-fit:contain;background:#fff}
.slider-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:42px;height:42px;border:0;border-radius:50%;background:rgba(255,255,255,.86);color:#289CFF;font-size:32px;line-height:1;cursor:pointer;box-shadow:0 10px 22px rgba(56,92,138,.18)}
.slider-prev{left:18px}.slider-next{right:18px}
.slider-dots{position:absolute;left:0;right:0;bottom:16px;z-index:4;display:flex;justify-content:center;gap:9px}
.slider-dot{width:10px;height:10px;border-radius:999px;border:0;background:rgba(78,95,122,.38);cursor:pointer;padding:0}
.slider-dot.active{width:26px;background:#289CFF}
.banner-caption,.banner-text,.slide-title,.slide-desc,.slide-content,.slide-card,.banner-card{display:none!important}
.section{padding:42px 0}
.section.tight{padding:26px 0}
.card,.zone-card,.info-card,.review-card,.faq-item,.page-hero,.notice-box{background:var(--card);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:22px}
.page-hero{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(280px,.88fr);gap:34px;align-items:center;padding:40px;margin:30px auto 26px;background:linear-gradient(135deg,rgba(255,255,255,.96),rgba(238,242,247,.92))}
.page-hero.no-image{grid-template-columns:1fr}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:#289CFF;background:#EEF7FF;border:1px solid rgba(40,156,255,.14);border-radius:999px;padding:5px 13px;font-size:13px;font-weight:800;margin-bottom:12px}
h1,h2,h3,.section-title{color:#289CFF;line-height:1.28;margin:0 0 14px}
h1{font-size:clamp(30px,4vw,48px)}
h2,.section-title{font-size:clamp(24px,3vw,34px)}
h3{font-size:20px}.lead{font-size:17px;color:#243447;margin:0 0 20px}.muted{color:#66788A}.hint{color:#8A9AAF;font-size:14px}.hero-img,.content-img{border-radius:20px;overflow:hidden;background:#fff;border:1px solid rgba(40,156,255,.12);box-shadow:0 16px 30px rgba(56,92,138,.10)}
.hero-img img,.content-img img,.zone-card img,.app-section img{width:100%;height:auto;object-fit:contain;background:#fff}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:22px}
.section-head p{max-width:760px;margin:0;color:#66788A}.grid{display:grid;gap:20px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card,.zone-card,.info-card,.review-card{padding:24px}.zone-card{overflow:hidden}.zone-card img{margin:-6px 0 18px;border-radius:18px}.card .num,.zone-card .tag,.info-card .tag{display:inline-flex;align-items:center;justify-content:center;color:#289CFF;background:#EEF7FF;border-radius:999px;padding:4px 10px;font-weight:800;font-size:13px;margin-bottom:12px}.text-link{font-weight:800;color:#289CFF}.text-link::after{content:" →"}.feature-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:18px}.feature-list span{display:block;background:#F5F7FB;border:1px solid rgba(40,156,255,.12);border-radius:16px;padding:13px 15px;color:#4E5F7A;font-weight:700}.split{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:center}.notice-box{padding:26px;background:#F5F7FB}.review-card p{margin:0;color:#243447}.review-card strong{display:block;color:#289CFF;margin-bottom:8px}.faq-list{display:grid;gap:16px}.faq-item{padding:22px}.faq-item h3{font-size:18px;margin-bottom:8px}.faq-item p{margin:0;color:#66788A}.check-list{padding:0;margin:0;list-style:none;display:grid;gap:12px}.check-list li{background:#fff;border:1px solid rgba(40,156,255,.14);border-radius:16px;padding:14px 16px;color:#4E5F7A}.check-list li strong{color:#289CFF}.site-footer{background:#243447;color:#EAF3FF;margin-top:42px;padding-top:46px}.footer-grid{display:grid;grid-template-columns:1.4fr .8fr .8fr 1.2fr;gap:28px}.footer-brand img{width:142px;max-height:52px;object-fit:contain;margin-bottom:16px}.footer-brand p,.footer-note p{margin:0;color:#D9E8F7}.footer-links{display:flex;flex-direction:column;gap:8px}.footer-links h3,.footer-note h3{color:#EAF3FF;font-size:18px;margin:0 0 10px}.footer-links a{color:#EAF3FF}.footer-links a:hover{color:#32D1F6}.footer-bottom{text-align:center;border-top:1px solid rgba(234,243,255,.14);margin-top:34px;padding:18px;color:#C9D9EA}.compliance{background:#DDE4EE;border:1px solid rgba(40,156,255,.16);border-radius:22px;padding:24px;color:#4E5F7A}.compliance strong{color:#289CFF}.small-table{width:100%;border-collapse:separate;border-spacing:0 12px}.small-table th,.small-table td{text-align:left;padding:14px 16px;background:#fff;border-top:1px solid rgba(40,156,255,.12);border-bottom:1px solid rgba(40,156,255,.12)}.small-table th:first-child,.small-table td:first-child{border-left:1px solid rgba(40,156,255,.12);border-radius:14px 0 0 14px}.small-table th:last-child,.small-table td:last-child{border-right:1px solid rgba(40,156,255,.12);border-radius:0 14px 14px 0}.contact-box{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.contact-box div{background:#fff;border:1px solid rgba(40,156,255,.14);border-radius:18px;padding:18px}
@media (max-width:1080px){.desktop-header{display:none}.mobile-topbar{display:flex}.site-header{min-height:66px}.page-hero{grid-template-columns:1fr;padding:28px}.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-grid{grid-template-columns:1fr 1fr}.banner-slider{width:calc(100% - 28px);margin-top:18px;min-height:210px}}
@media (max-width:760px){.container{width:min(100% - 24px,1200px)}.banner-slider{aspect-ratio:16/8.8;min-height:180px;border-radius:16px;margin-bottom:24px}.slider-arrow{width:36px;height:36px;font-size:28px}.slider-prev{left:10px}.slider-next{right:10px}.section{padding:30px 0}.page-hero{margin-top:18px;border-radius:18px;padding:22px;gap:22px}.grid-2,.grid-3,.grid-4,.split{grid-template-columns:1fr}.feature-list{grid-template-columns:1fr}.section-head{display:block}.section-head p{margin-top:8px}.footer-grid{grid-template-columns:1fr}.contact-box{grid-template-columns:1fr}.card,.zone-card,.info-card,.review-card,.faq-item{padding:20px}.mobile-logo img{width:120px}.header-btn{min-width:68px;padding:0 16px}.small-table{font-size:14px}}