:root{
    --bg:#E6EBF2;
    --nav:#F5F7FB;
    --white:#FFFFFF;
    --soft:#EEF2F7;
    --soft2:#DDE4EE;
    --blue:#289CFF;
    --navtext:#4E5F7A;
    --text:#243447;
    --muted:#66788A;
    --light:#8A9AAF;
    --footer:#243447;
    --footerText:#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%);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);overflow-x:hidden;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.75}
a{color:var(--blue);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:1280px;margin:0 auto;padding:12px 22px;display:flex;align-items:center;gap:18px;min-height:76px}
.brand-logo{flex:0 0 auto;display:flex;align-items:center}
.brand-logo img{width:146px;max-height:52px;object-fit:contain}
.desktop-nav{display:flex;align-items:center;justify-content:center;gap:12px;flex:1;min-width:0;overflow-x:auto;scrollbar-width:none;white-space:nowrap}
.desktop-nav::-webkit-scrollbar{display:none}
.desktop-nav a{position:relative;color:#4E5F7A;font-size:14px;font-weight:700;padding:9px 2px}
.desktop-nav a.active,.drawer-nav a.active{color:var(--blue)}
.desktop-nav a.active:after{content:"";position:absolute;left:8%;right:8%;bottom:0;height:3px;border-radius:999px;background:var(--blue);box-shadow:0 4px 12px rgba(40,156,255,.3)}
.main-btn{display:inline-flex;align-items:center;justify-content:center;background:var(--btn);color:#FFFFFF!important;border-radius:999px;border:0;box-shadow:0 10px 24px rgba(36,155,255,0.25);font-weight:800;line-height:1;padding:13px 26px;min-width:86px;cursor:pointer;transition:.2s ease}
.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-cta{flex:0 0 auto}
.menu-toggle{display:none;width:42px;height:42px;border:0;background:transparent;padding:8px;cursor:pointer}
.menu-toggle span{display:block;height:3px;margin:5px 0;border-radius:999px;background:#4E5F7A}
.site-main{min-height:62vh}
.container{max-width:1200px;margin:0 auto;padding:0 22px}
.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;aspect-ratio:16/6.4}
.slides{width:100%;height:100%;position:relative;background:#FFFFFF}
.slide{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;background:#FFFFFF;opacity:0;transition:opacity .45s ease}
.slide.active{opacity:1;z-index:1}
.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,.88);color:#289CFF;font-size:28px;line-height:1;box-shadow:0 10px 22px rgba(56,92,138,.18);cursor:pointer}
.slider-arrow:hover{background:#FFFFFF}
.slider-arrow.prev{left:16px}
.slider-arrow.next{right:16px}
.slider-dots{position:absolute;left:0;right:0;bottom:14px;z-index:3;display:flex;justify-content:center;gap:8px}
.slider-dot{width:9px;height:9px;border-radius:999px;border:0;background:rgba(78,95,122,.38);cursor:pointer;padding:0;transition:.2s ease}
.slider-dot.active{width:28px;background:#289CFF}
.banner-caption,.banner-text,.slide-title,.slide-desc,.slide-content,.slide-card,.banner-card{display:none!important}
.hero-card,.section,.feature-band,.page-hero{background:rgba(255,255,255,0.92);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:24px;margin:0 0 28px;padding:34px}
.page-hero{margin-top:28px;display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center}
.page-hero.simple{display:block}
.eyebrow,.tag,.num{color:#289CFF;font-weight:800;letter-spacing:.03em}
h1,h2,h3,.section-title{color:#289CFF;line-height:1.32;margin:0 0 14px}
h1{font-size:38px}
h2{font-size:28px}
h3{font-size:20px}
p{margin:0 0 14px;color:#243447}
.lead{font-size:18px;color:#4E5F7A}
.muted{color:#66788A}
.light{color:#8A9AAF}
.grid{display:grid;gap:18px}
.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,.faq-item,.notice-card,.step-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;padding:24px;overflow:hidden}
.card h3,.zone-card h3,.info-card h3,.review-card h3,.faq-item h3,.notice-card h3,.step-card h3{margin-top:0}
.card-link{font-weight:800;color:#289CFF}
.card-link:after{content:" →"}
.content-img,.zone-card img,.app-section img,.banner-slider img{max-width:100%;height:auto}
.content-img{border-radius:22px;border:1px solid rgba(40,156,255,0.14);box-shadow:0 16px 36px rgba(56,92,138,0.12);background:#FFFFFF;object-fit:contain}
.zone-card img{width:100%;height:180px;object-fit:contain;background:#F5F7FB;border-radius:16px;margin-bottom:18px;padding:6px}
.icon-num{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:12px;background:#EEF7FF;color:#289CFF;font-weight:900;margin-bottom:12px}
.cta-row{display:flex;gap:14px;align-items:center;flex-wrap:wrap;margin-top:18px}
.list{display:grid;gap:12px;margin:16px 0 0;padding:0;list-style:none}
.list li{position:relative;padding-left:22px;color:#243447}
.list li:before{content:"";position:absolute;left:0;top:.75em;width:8px;height:8px;border-radius:50%;background:#289CFF;box-shadow:0 0 0 5px rgba(40,156,255,.1)}
.steps{counter-reset:step}
.step-card{position:relative}
.step-card:before{counter-increment:step;content:counter(step,decimal-leading-zero);display:inline-flex;color:#289CFF;font-weight:900;margin-bottom:10px;font-size:24px}
.review-card p{color:#4E5F7A}
.review-card strong{display:block;color:#289CFF;margin-top:10px}
.faq-item p{color:#4E5F7A}
.app-section{display:grid;grid-template-columns:.95fr 1.05fr;gap:28px;align-items:center}
.app-section img{border-radius:22px;background:#FFFFFF;border:1px solid rgba(40,156,255,.16);box-shadow:0 14px 32px rgba(56,92,138,.10);object-fit:contain}
.notice-strip{background:#DDE4EE;border:1px solid rgba(40,156,255,.16);border-radius:22px;padding:24px;margin:28px 0;color:#243447}
.notice-strip strong{color:#289CFF}
.footer-remind{margin-top:18px;color:#66788A}
.site-footer{background:#243447;color:#EAF3FF;margin-top:46px}
.footer-inner{max-width:1200px;margin:0 auto;padding:42px 22px;display:grid;grid-template-columns:1.4fr .8fr .8fr 1.1fr;gap:26px}
.footer-brand img{width:138px;max-height:52px;object-fit:contain;margin-bottom:14px}
.site-footer p,.site-footer a{color:#EAF3FF}
.footer-links h3,.footer-note h3{color:#EAF3FF;font-size:18px;margin-bottom:12px}
.footer-links a{display:block;margin:8px 0;color:#EAF3FF;opacity:.88}
.footer-links a:hover{opacity:1;color:#FFFFFF}
.footer-bottom{text-align:center;border-top:1px solid rgba(234,243,255,.12);padding:16px;color:#EAF3FF;opacity:.86}
.drawer-mask{position:fixed;inset:0;background:rgba(0,0,0,.42);z-index:10000;opacity:0;visibility:hidden;transition:.25s ease}
.mobile-drawer{position:fixed;left:0;top:0;bottom:0;width:82vw;max-width:320px;background:#FFFFFF;z-index:10001;transform:translateX(-102%);transition:.28s ease;box-shadow:18px 0 38px rgba(36,52,71,.20);overflow-y:auto}
.drawer-open{overflow:hidden}
.drawer-open .drawer-mask{opacity:1;visibility:visible}
.drawer-open .mobile-drawer{transform:translateX(0)}
.drawer-top{height:78px;display:flex;align-items:center;justify-content:space-between;padding:12px 18px;background:#F5F7FB;border-bottom:1px solid rgba(40,156,255,.12)}
.drawer-logo img{width:138px;max-height:52px;object-fit:contain}
.drawer-close{width:38px;height:38px;border:0;border-radius:50%;background:#EEF2F7;color:#4E5F7A;font-size:26px;cursor:pointer}
.drawer-nav{display:grid;gap:4px;padding:18px}
.drawer-nav a{color:#4E5F7A;font-weight:800;padding:12px 14px;border-radius:14px}
.drawer-nav a.active,.drawer-nav a:hover{background:#EEF7FF;color:#289CFF}
@media (max-width:1100px){
    .desktop-nav{display:none}
    .menu-toggle{display:block;order:1}
    .brand-logo{order:2;position:absolute;left:50%;transform:translateX(-50%)}
    .header-cta{order:3;margin-left:auto;padding:12px 20px;min-width:72px}
    .header-inner{position:relative;min-height:70px;padding:10px 16px}
    .brand-logo img{width:132px}
    .page-hero,.app-section{grid-template-columns:1fr}
    .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
    .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
    .footer-inner{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:720px){
    .container{padding:0 14px}
    .banner-slider{margin:18px 14px 24px;border-radius:16px;aspect-ratio:16/8.8}
    .slider-arrow{width:34px;height:34px;font-size:22px}
    .slider-arrow.prev{left:10px}
    .slider-arrow.next{right:10px}
    .hero-card,.section,.feature-band,.page-hero{padding:24px 18px;border-radius:20px;margin-bottom:22px}
    h1{font-size:28px}
    h2{font-size:23px}
    h3{font-size:18px}
    .lead{font-size:16px}
    .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
    .card,.zone-card,.info-card,.review-card,.faq-item,.notice-card,.step-card{padding:20px;border-radius:18px}
    .zone-card img{height:150px}
    .footer-inner{grid-template-columns:1fr;padding:34px 18px}
    .main-btn{padding:12px 20px}
}