:root{
    --bg:#E6EBF2;
    --nav-bg:#F5F7FB;
    --white:#FFFFFF;
    --soft:#EEF2F7;
    --soft-deep:#DDE4EE;
    --blue:#289CFF;
    --nav-text:#4E5F7A;
    --text:#243447;
    --muted:#66788A;
    --light-text:#8A9AAF;
    --footer:#243447;
    --footer-text:#EAF3FF;
    --border:rgba(40,156,255,0.16);
    --shadow:0 14px 36px rgba(56,92,138,0.12);
    --grad: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);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",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}
main{padding-top:18px}
.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-nav{max-width:1280px;margin:0 auto;display:flex;align-items:center;gap:18px;min-height:78px;padding:0 22px}
.brand-logo img{width:154px;max-height:54px;object-fit:contain}
.nav{flex:1;display:flex;align-items:center;justify-content:center;gap:2px;flex-wrap:wrap}
.nav a{position:relative;color:var(--nav-text);font-size:15px;font-weight:700;padding:10px 9px;border-radius:12px;white-space:nowrap}
.nav a::after{content:"";position:absolute;left:16px;right:16px;bottom:4px;height:3px;border-radius:9px;background:transparent;transition:.2s ease}
.nav a.active,.nav a:hover{color:var(--blue);background:rgba(40,156,255,0.08)}
.nav a.active::after{background:var(--blue)}
.main-btn{display:inline-flex;align-items:center;justify-content:center;background:var(--grad);color:#FFFFFF!important;border-radius:999px;box-shadow:0 10px 24px rgba(36,155,255,0.25);font-weight:800;padding:11px 24px;border:0;line-height:1;min-height:42px;white-space:nowrap}
.main-btn:hover{background:linear-gradient(180deg,#48D9F7 0%,#1E90F0 100%);transform:translateY(-1px);color:#FFFFFF!important}
.header-btn{min-width:84px}
.mobile-nav{display:none;min-height:66px;padding:0 14px;align-items:center;justify-content:space-between;gap:10px}
.menu-toggle{width:42px;height:42px;border:0;border-radius:12px;background:#FFFFFF;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;box-shadow:0 8px 18px rgba(56,92,138,0.10)}
.menu-toggle span{width:20px;height:2px;background:var(--nav-text);border-radius:3px}
.mobile-logo{position:absolute;left:50%;transform:translateX(-50%)}
.mobile-logo img{width:128px;max-height:46px;object-fit:contain}
.mobile-register{padding:10px 17px;min-height:38px}
.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;left:0;top:0;bottom:0;width:84vw;max-width:320px;background:#FFFFFF;z-index:10001;transform:translateX(-105%);transition:.3s ease;box-shadow:18px 0 45px rgba(25,45,76,.18);overflow-y:auto}
.mobile-drawer.open{transform:translateX(0)}
.drawer-open{overflow:hidden}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px;border-bottom:1px solid var(--border);background:var(--nav-bg)}
.drawer-logo img{width:138px;max-height:48px;object-fit:contain}
.drawer-close{width:38px;height:38px;border:0;background:#FFFFFF;color:var(--blue);font-size:26px;border-radius:50%;box-shadow:0 8px 18px rgba(56,92,138,.10)}
.drawer-menu{display:grid;gap:4px;padding:14px}
.drawer-menu a{display:block;color:var(--nav-text);font-weight:700;padding:13px 15px;border-radius:14px;background:#F5F7FB}
.drawer-menu a.active,.drawer-menu a:hover{color:var(--blue);background:rgba(40,156,255,.10)}
.container{width:min(1200px,calc(100% - 32px));margin:0 auto}
.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:16/6.6}
.slides,.slide{position:absolute;inset:0;width:100%;height:100%}
.slide{opacity:0;transition:opacity .42s ease;background:#FFFFFF;object-fit:contain}
.slide.active{opacity:1;z-index:1}
.banner-slider img{width:100%;height:100%;object-fit:contain;background:#FFFFFF}
.slider-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:42px;height:42px;border:0;border-radius:50%;background:rgba(245,247,251,.9);color:var(--blue);font-size:32px;line-height:1;cursor:pointer;box-shadow:0 10px 22px rgba(56,92,138,.14)}
.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:50%;border:0;background:rgba(78,95,122,.32);cursor:pointer;padding:0}
.slider-dot.active{background:var(--blue);box-shadow:0 0 0 5px rgba(40,156,255,.15)}
.banner-caption,.banner-text,.slide-title,.slide-desc,.slide-content,.slide-card,.banner-card{display:none!important}
.section{margin:36px auto}
.hero-welcome,.inner-hero,.media-panel,.section-card,.notice-panel{background:rgba(255,255,255,.92);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:24px}
.hero-welcome{padding:34px;display:grid;grid-template-columns:1.18fr .82fr;gap:28px;align-items:center}
.inner-hero{width:min(1200px,calc(100% - 32px));margin:30px auto;padding:38px;display:grid;grid-template-columns:1.08fr .92fr;gap:28px;align-items:center}
.hero-media,.media-img{border-radius:20px;background:#FFFFFF;border:1px solid var(--border);padding:12px;overflow:hidden}
.content-img,.zone-card img,.app-section img,.banner-slider img{max-width:100%;height:auto}
.hero-media img,.media-img img,.card-img img{width:100%;height:auto;object-fit:contain;border-radius:16px;background:#FFFFFF}
.eyebrow{margin:0 0 8px;color:var(--blue);font-weight:800;letter-spacing:.08em}
h1,h2,h3,.section-title{color:var(--blue);line-height:1.25;margin:0 0 16px}
h1{font-size:clamp(32px,5vw,54px)}
h2,.section-title{font-size:clamp(26px,3vw,36px)}
h3{font-size:21px}
p{margin:0 0 14px}.muted{color:var(--muted)}.small-note{color:var(--light-text);font-size:14px}
.hero-actions{display:flex;gap:18px;align-items:center;flex-wrap:wrap;margin-top:18px}
.text-link{font-weight:800;color:var(--blue)}
.cards-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.triple-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.two-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.card,.zone-card,.info-card,.review-card,.faq-item,.guide-item{background:rgba(255,255,255,.92);border:1px solid var(--border);box-shadow:0 14px 36px rgba(56,92,138,.10);border-radius:20px;padding:22px}
.card:hover,.zone-card:hover,.info-card:hover{transform:translateY(-3px);box-shadow:0 18px 44px rgba(56,92,138,.14)}
.card-num,.tag,.guide-num{display:inline-flex;color:var(--blue);background:rgba(40,156,255,.10);border-radius:999px;padding:4px 11px;font-weight:800;font-size:13px;margin-bottom:12px}
.section-card{padding:32px}.section-card+.section-card{margin-top:24px}
.media-panel{padding:28px;display:grid;grid-template-columns:.95fr 1.05fr;gap:26px;align-items:center}
.zone-card{display:grid;gap:14px}.zone-card .card-img{border-radius:16px;background:#FFFFFF;border:1px solid var(--border);padding:10px}
.feature-list{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:18px}
.feature-list li{list-style:none;background:#F5F7FB;border:1px solid var(--border);border-radius:16px;padding:16px;color:var(--muted)}
ul.feature-list{padding:0;margin-left:0}
.guide-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:18px}
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.review-card strong{display:block;color:var(--blue);margin-bottom:8px}
.faq-list{display:grid;gap:14px;margin-top:18px}.faq-item h3{font-size:18px;margin-bottom:8px}.faq-item p{color:var(--muted)}
.notice-panel{padding:26px;background:#DDE4EE}.notice-panel strong{color:var(--blue)}
.footer-inner{width:min(1200px,calc(100% - 32px));margin:0 auto;display:grid;grid-template-columns:1.2fr .8fr;gap:34px;padding:42px 0}
.site-footer{background:var(--footer);color:var(--footer-text);margin-top:52px}
.footer-brand img{width:158px;max-height:56px;object-fit:contain;margin-bottom:14px}.footer-brand p{color:#EAF3FF}.footer-links{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.footer-links a{color:#EAF3FF;background:rgba(255,255,255,.08);border-radius:12px;padding:10px 12px}.footer-links a:hover{background:rgba(40,156,255,.28)}
.footer-bottom{text-align:center;border-top:1px solid rgba(234,243,255,.14);padding:16px;color:#EAF3FF;font-size:14px}
.page-list{display:grid;gap:14px}.page-list p{background:#F5F7FB;border-left:4px solid var(--blue);border-radius:14px;padding:14px 16px;color:var(--muted)}
.contact-box{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.contact-box div{background:#F5F7FB;border-radius:18px;padding:20px;border:1px solid var(--border)}
@media(max-width:1120px){.desktop-nav{display:none}.mobile-nav{display:flex}main{padding-top:10px}.cards-grid{grid-template-columns:repeat(2,1fr)}.nav{gap:0}.inner-hero,.hero-welcome,.media-panel{grid-template-columns:1fr}.feature-list,.guide-list,.review-grid{grid-template-columns:repeat(2,1fr)}.banner-slider{width:calc(100% - 26px);aspect-ratio:16/8}}
@media(max-width:720px){body{font-size:15px}.container{width:min(100% - 24px,1200px)}.banner-slider{margin:18px auto 24px;border-radius:16px;aspect-ratio:16/9}.slider-arrow{width:34px;height:34px;font-size:25px}.slider-prev{left:10px}.slider-next{right:10px}.slider-dots{bottom:10px}.hero-welcome,.inner-hero,.section-card,.media-panel,.notice-panel{padding:22px;border-radius:20px}.cards-grid,.triple-grid,.two-grid,.feature-list,.guide-list,.review-grid,.contact-box{grid-template-columns:1fr}.footer-inner{grid-template-columns:1fr}.footer-links{grid-template-columns:1fr}.mobile-logo img{width:112px}.main-btn{padding:10px 18px}.hero-actions{gap:12px}.section{margin:24px auto}}