:root{
    --body-bg:#E6EBF2;
    --panel:#FFFFFF;
    --soft:#F5F7FB;
    --soft-2:#EEF2F7;
    --soft-3:#DDE4EE;
    --blue:#289CFF;
    --nav:#4E5F7A;
    --text:#243447;
    --muted:#66788A;
    --light:#8A9AAF;
    --footer:#243447;
    --footer-text:#EAF3FF;
    --gradient:linear-gradient(180deg,#32D1F6 0%,#27B9F4 35%,#249BFF 100%);
    --shadow:0 14px 36px rgba(56,92,138,0.10);
    --shadow-lg:0 18px 40px rgba(56,92,138,0.12);
    --border:1px solid rgba(40,156,255,0.16);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#E6EBF2;color:#243447;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;line-height:1.75}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
p{margin:0 0 16px}
h1,h2,h3,.section-title{color:#289CFF;margin:0 0 16px;line-height:1.25}
h1{font-size:clamp(30px,5vw,54px)}
h2,.section-title{font-size:clamp(24px,3vw,36px)}
h3{font-size:22px}
.site-header{position:fixed;top:0;left:0;right:0;background:#F5F7FB;z-index:1000;box-shadow:0 10px 30px rgba(48,78,112,0.10);border-bottom:1px solid rgba(40,156,255,0.12)}
.header-inner{max-width:1240px;margin:0 auto;min-height:76px;display:flex;align-items:center;gap:18px;padding:0 22px}
.brand-logo img{width:146px;max-height:48px;object-fit:contain}
.desktop-nav{display:flex;align-items:center;gap:10px;flex:1;justify-content:center;white-space:nowrap}
.nav a{color:#4E5F7A;font-weight:700;font-size:14px;padding:8px 9px;border-radius:999px;transition:background .2s,color .2s,transform .2s}
.nav a:hover,.nav a.active{color:#289CFF;background:rgba(40,156,255,0.10);transform:translateY(-1px)}
.main-btn{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 22px;border-radius:999px;background:linear-gradient(180deg,#32D1F6 0%,#27B9F4 35%,#249BFF 100%);color:#FFFFFF;font-weight:800;box-shadow:0 12px 24px rgba(36,155,255,0.26);border:none;cursor:pointer;transition:transform .2s,box-shadow .2s}
.main-btn:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(36,155,255,0.30)}
.header-action{flex:0 0 auto}
.menu-toggle{display:none;width:44px;height:44px;border:none;border-radius:14px;background:#FFFFFF;box-shadow:var(--shadow);padding:10px;cursor:pointer}
.menu-toggle span{display:block;height:2px;background:#289CFF;margin:6px 0;border-radius:2px}
.mobile-backdrop{display:none;position:fixed;inset:0;background:rgba(20,36,58,0.42);z-index:1001}
.mobile-drawer{position:fixed;top:0;right:-330px;width:min(330px,88vw);height:100vh;background:#F5F7FB;z-index:1002;box-shadow:-18px 0 38px rgba(36,52,71,.18);padding:18px;transition:right .25s ease;overflow:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-head img{width:138px;max-height:48px;object-fit:contain}
.drawer-close{border:none;background:#FFFFFF;color:#289CFF;font-size:28px;width:42px;height:42px;border-radius:14px;box-shadow:var(--shadow);cursor:pointer}
.drawer-nav{display:grid;gap:8px;margin:10px 0 18px}
.drawer-nav a{background:#FFFFFF;padding:12px 14px;border:var(--border);border-radius:14px}
.drawer-btn{width:100%;margin:6px 0 14px}
.drawer-note{font-size:13px;color:#66788A;background:#FFFFFF;border:var(--border);border-radius:16px;padding:12px;margin:0}
.menu-open .mobile-backdrop{display:block}
.menu-open .mobile-drawer{right:0}
.site-main{padding-top:96px;min-height:60vh}
.container{max-width:1200px;margin:0 auto;padding:0 22px}
.section{margin:42px auto}
.section-head{max-width:820px;margin:0 auto 24px;text-align:center}
.section-head p{color:#66788A;font-size:17px}
.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;min-height:520px}
.slider-track{position:relative;min-height:520px;background:#FFFFFF}
.banner-slide{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .45s ease,visibility .45s ease;background:#FFFFFF}
.banner-slide.active{opacity:1;visibility:visible;position:relative}
.banner-slide img{width:100%;height:520px;object-fit:contain;background:#FFFFFF}
.banner-copy{position:absolute;left:48px;bottom:42px;max-width:520px;padding:24px;border-radius:22px;background:rgba(245,247,251,.86);backdrop-filter:blur(10px);box-shadow:0 16px 32px rgba(36,52,71,.12);border:1px solid rgba(255,255,255,.72)}
.banner-copy span,.eyebrow,.tag{display:inline-flex;color:#289CFF;font-weight:800;background:rgba(40,156,255,.10);padding:5px 12px;border-radius:999px;margin-bottom:12px}
.banner-copy h1,.banner-copy h2{font-size:clamp(26px,4vw,46px);margin-bottom:12px}
.banner-copy p{color:#243447;font-size:17px}
.slider-btn{position:absolute;top:50%;transform:translateY(-50%);width:46px;height:46px;border-radius:999px;border:0;background:rgba(255,255,255,.88);color:#289CFF;font-size:30px;font-weight:800;cursor:pointer;box-shadow:var(--shadow);z-index:5}
.slider-btn:hover{background:#FFFFFF}
.slider-btn.prev{left:18px}.slider-btn.next{right:18px}
.slider-dots{position:absolute;left:0;right:0;bottom:16px;display:flex;justify-content:center;gap:9px;z-index:6}
.slider-dot{width:10px;height:10px;border-radius:999px;border:none;background:rgba(78,95,122,.32);cursor:pointer;transition:width .2s,background .2s}
.slider-dot.active{width:28px;background:#289CFF}
.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:22px;padding:24px}
.split-card{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:center;background:#F5F7FB;border:var(--border);box-shadow:var(--shadow-lg);border-radius:28px;padding:30px}
.split-card .content-img,.page-visual .content-img{border-radius:24px;background:#FFFFFF;box-shadow:0 12px 28px rgba(56,92,138,0.12);object-fit:contain;width:100%;max-height:360px}
.btn-row{display:flex;gap:14px;flex-wrap:wrap;align-items:center;margin-top:10px}
.text-link{color:#289CFF;font-weight:800;border-bottom:1px solid rgba(40,156,255,.30)}
.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))}
.icon-num{width:42px;height:42px;border-radius:16px;background:rgba(40,156,255,.10);color:#289CFF;display:flex;align-items:center;justify-content:center;font-weight:900;margin-bottom:14px}
.card p,.zone-card p,.info-card p,.review-card p{color:#66788A}
.zone-card{display:flex;flex-direction:column;gap:14px}
.zone-card img,.app-section img,.content-img{max-width:100%;height:auto}
.zone-card img{border-radius:18px;background:#FFFFFF;object-fit:contain;width:100%;max-height:230px}
.mini-meta{display:flex;gap:10px;flex-wrap:wrap;margin:10px 0 0}
.mini-meta span{color:#289CFF;background:rgba(40,156,255,.10);border-radius:999px;padding:5px 10px;font-size:13px;font-weight:800}
.app-section{background:#FFFFFF;border:var(--border);box-shadow:var(--shadow);border-radius:28px;padding:30px;display:grid;grid-template-columns:.9fr 1.1fr;gap:28px;align-items:center}
.app-section img{border-radius:24px;object-fit:contain;background:#F5F7FB;max-height:360px;width:100%}
.steps{counter-reset:step;display:grid;gap:16px}
.step-item{display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:flex-start;background:#FFFFFF;border:var(--border);border-radius:20px;padding:18px;box-shadow:0 10px 26px rgba(56,92,138,.08)}
.step-item:before{counter-increment:step;content:counter(step);width:38px;height:38px;border-radius:14px;background:rgba(40,156,255,.10);color:#289CFF;display:flex;align-items:center;justify-content:center;font-weight:900}
.notice-band{background:#DDE4EE;border:1px solid rgba(78,95,122,.12);border-radius:24px;padding:24px;color:#243447}
.notice-band strong{color:#289CFF}
.review-card{position:relative}
.review-card:before{content:'“';position:absolute;right:20px;top:8px;font-size:64px;color:rgba(40,156,255,.14);font-family:Georgia,serif}
.review-card .name{color:#243447;font-weight:900;margin-top:14px}
.faq-list{display:grid;gap:14px}
details{background:#FFFFFF;border:var(--border);border-radius:18px;padding:18px 20px;box-shadow:0 10px 26px rgba(56,92,138,.08)}
summary{cursor:pointer;color:#289CFF;font-weight:900;list-style:none}
summary::-webkit-details-marker{display:none}
details p{margin-top:12px;color:#66788A}
.page-hero{max-width:1200px;margin:28px auto 36px;padding:46px 32px;border-radius:30px;background:linear-gradient(135deg,#FFFFFF 0%,#F5F7FB 54%,#EEF2F7 100%);box-shadow:var(--shadow-lg);border:var(--border)}
.page-hero p{max-width:860px;color:#66788A;font-size:18px}
.hero-badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.hero-badges span{color:#289CFF;font-weight:800;background:rgba(40,156,255,.10);border-radius:999px;padding:7px 12px}
.page-layout{display:grid;grid-template-columns:1fr;gap:26px}
.page-visual{display:grid;grid-template-columns:.95fr 1.05fr;gap:26px;align-items:center}
.kv-list{display:grid;gap:12px;margin:0;padding:0;list-style:none}
.kv-list li{background:#FFFFFF;border:var(--border);border-radius:16px;padding:14px 16px;color:#66788A;box-shadow:0 8px 22px rgba(56,92,138,.07)}
.kv-list strong{color:#289CFF}
.site-footer{background:#243447;color:#EAF3FF;margin-top:62px}
.footer-inner{max-width:1200px;margin:0 auto;padding:46px 22px;display:grid;grid-template-columns:1.4fr .7fr .7fr 1fr;gap:28px}
.footer-logo img{width:148px;max-height:50px;object-fit:contain;margin-bottom:16px}
.footer-brand p,.footer-notice p,.footer-bottom p{color:rgba(234,243,255,.82)}
.footer-links{display:grid;align-content:start;gap:10px}
.footer-links h2,.footer-notice h2{font-size:20px;color:#EAF3FF;margin-bottom:8px}
.footer-links a{color:rgba(234,243,255,.82)}
.footer-links a:hover{color:#FFFFFF}
.footer-btn{margin-top:8px}
.footer-bottom{border-top:1px solid rgba(234,243,255,.12);text-align:center;padding:18px 22px}
.register-page{max-width:920px;margin:28px auto;padding:40px 24px;background:#FFFFFF;border:var(--border);box-shadow:var(--shadow-lg);border-radius:28px;text-align:center}
.register-page p{color:#66788A}
@media (max-width:1120px){
    .desktop-nav{display:none}
    .menu-toggle{display:block}
    .header-inner{justify-content:space-between}
    .header-action{margin-left:auto}
}
@media (max-width:900px){
    .site-main{padding-top:86px}
    .banner-slider,.slider-track{min-height:430px;margin-left:16px;margin-right:16px}
    .banner-slide img{height:430px}
    .banner-copy{left:18px;right:18px;bottom:22px;max-width:none;padding:18px}
    .split-card,.app-section,.page-visual{grid-template-columns:1fr}
    .grid-4,.grid-3,.grid-2{grid-template-columns:1fr 1fr}
    .footer-inner{grid-template-columns:1fr 1fr}
}
@media (max-width:620px){
    .header-inner{min-height:70px;padding:0 16px}
    .brand-logo img{width:126px}
    .header-action{padding:0 16px;min-height:38px}
    .container{padding:0 16px}
    .banner-slider,.slider-track{min-height:360px;border-radius:18px}
    .banner-slide img{height:360px}
    .banner-copy{position:static;margin:0;border-radius:0;background:#F5F7FB;box-shadow:none}
    .slider-btn{width:38px;height:38px;font-size:24px;top:42%}
    .grid-4,.grid-3,.grid-2{grid-template-columns:1fr}
    .section{margin:32px auto}
    .card,.zone-card,.info-card,.review-card,.split-card,.app-section,.page-hero{padding:20px;border-radius:20px}
    .page-hero{margin-left:16px;margin-right:16px}
    .footer-inner{grid-template-columns:1fr;padding:36px 18px}
    .step-item{grid-template-columns:1fr}
}