*{box-sizing:border-box}
:root{
    --bg:#E6EBF2;--nav-bg:#F5F7FB;--white:#FFFFFF;--soft:#EEF2F7;--soft2:#DDE4EE;--blue:#289CFF;--nav-text:#4E5F7A;--text:#243447;--muted:#66788A;--hint:#8A9AAF;--footer:#243447;--footer-text:#EAF3FF;--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%);
}
html{scroll-behavior:smooth}
body{margin:0;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;background:#E6EBF2;color:#243447;line-height:1.75;overflow-x:hidden}
a{color:#289CFF;text-decoration:none;transition:.2s ease}
a:hover{color:#1E90F0}
img{max-width:100%;height:auto;display:block}
.site-header{position:sticky;top:0;z-index:9999;background:#F5F7FB;backdrop-filter:blur(10px);box-shadow:0 8px 24px rgba(56,92,138,0.10)}
.header-inner{max-width:1240px;margin:0 auto;min-height:74px;display:flex;align-items:center;gap:18px;padding:10px 24px}
.brand-logo{display:flex;align-items:center;flex:0 0 auto}
.brand-logo img{height:48px;width:auto;object-fit:contain}
.nav{flex:1;display:flex;align-items:center;justify-content:center;gap:4px 12px;flex-wrap:wrap}
.nav a{position:relative;color:#4E5F7A;font-size:15px;font-weight:700;padding:10px 4px;white-space:nowrap}
.nav a.active,.nav a:hover{color:#289CFF}
.nav a.active:after{content:"";position:absolute;left:8px;right:8px;bottom:3px;height:3px;border-radius:999px;background:#289CFF;box-shadow:0 0 12px rgba(40,156,255,.35)}
.main-btn{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 24px;border-radius:999px;background:linear-gradient(180deg,#32D1F6 0%,#27B9F4 35%,#249BFF 100%);color:#FFFFFF!important;font-weight:800;border:0;box-shadow:0 10px 24px rgba(36,155,255,0.25);white-space:nowrap}
.main-btn:hover{background:linear-gradient(180deg,#48D9F7 0%,#1E90F0 100%);transform:translateY(-1px)}
.header-btn{min-width:86px}
.mobile-topbar{display:none}
.site-main{max-width:100%;padding-bottom:0}
.section{max-width:1200px;margin:0 auto 36px;padding:0 24px}
.section.narrow{max-width:980px}
.hero-card,.card,.zone-card,.info-card,.review-card,.faq-item,.notice-box{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:22px}
.hero-card{margin-top:28px;padding:38px;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(280px,.9fr);gap:34px;align-items:center}
.hero-card.no-image{display:block}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:#289CFF;font-weight:800;background:#EEF2F7;border:1px solid rgba(40,156,255,.15);padding:6px 14px;border-radius:999px;margin-bottom:12px}
h1,h2,h3,.section-title{color:#289CFF}
h1{font-size:clamp(30px,4vw,50px);line-height:1.18;margin:0 0 18px;font-weight:900}
h2,.section-title{font-size:clamp(24px,3vw,34px);line-height:1.28;margin:0 0 14px;font-weight:900}
h3{font-size:20px;margin:0 0 10px;font-weight:850}
p{margin:0 0 14px;color:#243447}
.lead{font-size:18px;color:#4E5F7A}
.muted{color:#66788A}
.hint{color:#8A9AAF;font-size:14px}
.hero-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:22px}
.text-link{font-weight:800;color:#289CFF}
.content-img,.zone-card img,.app-section img,.banner-slider img{max-width:100%;height:auto}
.image-frame{background:#FFFFFF;border:1px solid rgba(40,156,255,.14);border-radius:22px;overflow:hidden;box-shadow:0 14px 36px rgba(56,92,138,0.10)}
.image-frame img{width:100%;height:auto;object-fit:contain;background:#FFFFFF}
.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;height:clamp(220px,43vw,520px)}
.banner-slider img{width:100%;height:100%;object-fit:contain;background:#FFFFFF}
.slides,.slide{width:100%;height:100%}
.slide{display:none}
.slide.active{display:block}
.slider-arrow{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.8);background:rgba(36,52,71,.32);cursor:pointer;box-shadow:0 8px 18px rgba(36,52,71,.18)}
.slider-arrow:before{content:"";width:12px;height:12px;border-top:3px solid #FFFFFF;border-left:3px solid #FFFFFF;position:absolute;top:50%;left:50%}
.slider-prev{left:18px}.slider-next{right:18px}
.slider-prev:before{transform:translate(-35%,-50%) rotate(-45deg)}
.slider-next:before{transform:translate(-65%,-50%) rotate(135deg)}
.slider-dots{position:absolute;left:0;right:0;bottom:14px;display:flex;align-items:center;justify-content:center;gap:8px}
.slider-dot{width:10px;height:10px;border-radius:50%;border:0;background:rgba(36,52,71,.28);cursor:pointer}
.slider-dot.active{width:26px;border-radius:999px;background:#289CFF}
.banner-caption,.banner-text,.slide-title,.slide-desc,.slide-content,.slide-card,.banner-card{display:none!important}
.grid{display:grid;gap:22px}
.grid.cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid.cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid.cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.card,.zone-card,.info-card,.review-card,.faq-item,.notice-box{padding:24px}
.card-number,.tag{display:inline-flex;align-items:center;color:#289CFF;font-weight:900;background:#EEF2F7;border-radius:999px;padding:4px 12px;margin-bottom:12px}
.zone-card img{width:100%;object-fit:contain;background:#FFFFFF;border-radius:18px;margin-bottom:16px}
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(280px,.78fr);gap:26px;align-items:center}
.app-section{background:linear-gradient(180deg,#FFFFFF 0%,#EEF2F7 100%);border:1px solid rgba(40,156,255,0.16);border-radius:26px;box-shadow:0 14px 36px rgba(56,92,138,0.10);padding:30px}
.app-section img{width:100%;object-fit:contain;background:#FFFFFF;border-radius:20px}
.feature-list,.clean-list{list-style:none;padding:0;margin:16px 0 0;display:grid;gap:12px}
.feature-list li,.clean-list li{position:relative;padding-left:28px;color:#243447}
.feature-list li:before,.clean-list li:before{content:"";position:absolute;left:0;top:.68em;width:10px;height:10px;border-radius:50%;background:#289CFF;box-shadow:0 0 0 5px rgba(40,156,255,.12)}
.reviews{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.review-card p{color:#4E5F7A}
.review-name{font-weight:900;color:#289CFF;margin-top:12px}
.faq-list{display:grid;gap:16px}
.faq-item h3{color:#289CFF}
.legal-strip{max-width:1200px;margin:0 auto 36px;padding:22px 24px;border-radius:22px;background:#DDE4EE;border:1px solid rgba(40,156,255,.12)}
.legal-strip p{margin:0;color:#4E5F7A}
.site-footer{background:#243447;color:#EAF3FF;margin-top:50px}
.footer-inner{max-width:1200px;margin:0 auto;padding:44px 24px 28px;display:grid;grid-template-columns:minmax(240px,.9fr) minmax(0,1.4fr);gap:40px}
.footer-brand img{height:54px;width:auto;margin-bottom:18px;object-fit:contain}
.footer-brand p,.footer-note p{color:#EAF3FF}
.footer-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.footer-links h3{color:#EAF3FF;margin-bottom:12px}
.footer-links a{display:block;color:#EAF3FF;opacity:.88;margin:8px 0}
.footer-links a:hover{opacity:1;color:#FFFFFF}
.footer-note{border-top:1px solid rgba(234,243,255,.14);max-width:1200px;margin:0 auto;padding:16px 24px 24px}
.drawer-mask,.mobile-drawer{display:none}
@media (max-width:1100px){.nav a{font-size:14px}.header-inner{padding:10px 18px}}
@media (max-width:920px){
    .desktop-header{display:none}.mobile-topbar{min-height:66px;display:grid;grid-template-columns:70px minmax(0,1fr) 86px;align-items:center;padding:8px 14px;gap:8px;background:#F5F7FB}.mobile-logo{justify-self:center}.mobile-logo img{height:44px;width:auto;object-fit:contain}
    .menu-toggle{width:44px;height:44px;border:0;background:#FFFFFF;border-radius:14px;box-shadow:0 8px 18px rgba(56,92,138,.12);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px}.menu-toggle span{width:22px;height:2px;border-radius:999px;background:#4E5F7A}
    .mobile-drawer{display:block;position:fixed;top:0;left:0;width:82vw;max-width:320px;height:100vh;background:#FFFFFF;z-index:10002;transform:translateX(-105%);transition:transform .28s ease;box-shadow:18px 0 40px rgba(36,52,71,.18);overflow-y:auto}
    .drawer-mask{display:block;position:fixed;inset:0;background:rgba(36,52,71,.42);z-index:10001;opacity:0;visibility:hidden;transition:.25s ease}.drawer-open .mobile-drawer{transform:translateX(0)}.drawer-open .drawer-mask{opacity:1;visibility:visible}.drawer-open{overflow:hidden}
    .drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px;border-bottom:1px solid rgba(40,156,255,.12);background:#F5F7FB}.drawer-logo img{height:46px;width:auto;object-fit:contain}.drawer-close{width:40px;height:40px;border:0;border-radius:12px;background:#FFFFFF;color:#4E5F7A;font-size:26px;line-height:1}
    .drawer-nav{display:grid;gap:4px;padding:14px}.drawer-nav a{color:#4E5F7A;font-weight:800;padding:12px 14px;border-radius:14px}.drawer-nav a.active,.drawer-nav a:hover{color:#289CFF;background:#EEF2F7}
    .section{padding:0 16px;margin-bottom:28px}.banner-slider{margin:18px 16px 28px;height:clamp(180px,55vw,360px);border-radius:18px}.hero-card,.split{grid-template-columns:1fr}.hero-card{padding:26px;margin-top:20px}.grid.cols-2,.grid.cols-3,.grid.cols-4,.reviews{grid-template-columns:1fr}.footer-inner{grid-template-columns:1fr}.footer-links{grid-template-columns:1fr}.slider-arrow{width:38px;height:38px}.slider-prev{left:10px}.slider-next{right:10px}
}
@media (max-width:520px){
    .mobile-topbar{grid-template-columns:58px 1fr 76px;padding:8px 10px}.mobile-logo img{height:38px}.header-btn{min-width:72px;min-height:38px;padding:0 16px}.hero-card,.card,.zone-card,.info-card,.review-card,.faq-item,.notice-box,.app-section{padding:20px}.banner-slider{height:clamp(150px,60vw,290px)}h1{font-size:29px}.slider-dots{bottom:10px}
}