:root{
    --bg:#E6EBF2;
    --panel:#FFFFFF;
    --soft:#F5F7FB;
    --soft2:#EEF2F7;
    --line:rgba(40,156,255,0.16);
    --title:#289CFF;
    --text:#243447;
    --muted:#66788A;
    --footer:#243447;
    --footer-text:#EAF3FF;
    --grad:linear-gradient(180deg,#32D1F6 0%,#27B9F4 35%,#249BFF 100%);
    --shadow:0 14px 36px rgba(56,92,138,0.10);
}
*{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:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
p{margin:0 0 14px}
ul{margin:0;padding-left:18px}
.site-header{position:fixed;left:0;right:0;top:0;z-index:1000;background:rgba(255,255,255,0.90);backdrop-filter:blur(10px);box-shadow:0 8px 24px rgba(56,92,138,0.10)}
.header-inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:76px;padding:0 22px}
.logo img{max-height:52px;width:auto;display:block;object-fit:contain}
.nav-core{display:flex;justify-content:center;gap:24px;white-space:nowrap;flex-wrap:nowrap;align-items:center}
.nav-core a{color:#4E5F7A;position:relative;font-weight:700;padding:10px 8px;border-radius:12px;transition:.2s}
.nav-core a:hover,.nav-core a.active{color:var(--title);background:rgba(40,156,255,0.07)}
.nav-core a.active::after{content:"";position:absolute;left:50%;bottom:-8px;width:28px;height:3px;border-radius:999px;background:var(--title);transform:translateX(-50%)}
.main-btn,.register-mini{display:inline-flex;align-items:center;justify-content:center;background:var(--grad);color:#fff;border-radius:999px;font-weight:800;box-shadow:0 10px 24px rgba(36,155,255,0.22);border:0;min-height:42px;padding:0 22px;white-space:nowrap}
.nav-register{flex:0 0 auto}
.mobile-top{display:none}
.page-shell{max-width:1440px;margin:0 auto;padding:104px 22px 42px;display:grid;grid-template-columns:180px minmax(0,1fr);gap:24px;align-items:start}
.site-main{min-width:0;width:100%}
.side-channel{position:sticky;top:110px;background:rgba(255,255,255,0.92);border:1px solid rgba(40,156,255,0.14);border-radius:18px;box-shadow:0 14px 32px rgba(56,92,138,0.10);padding:10px;display:flex;flex-direction:column;gap:4px;z-index:20}
.side-channel a{color:var(--muted);border-radius:12px;padding:9px 12px;font-weight:700;font-size:14px;line-height:1.35}
.side-channel a:hover,.side-channel a.active{color:var(--title);background:rgba(40,156,255,0.10)}
.floating-service{position:fixed;right:18px;top:42%;z-index:60;display:flex;flex-direction:column;gap:10px}
.floating-service a,.floating-service button{background:#fff;color:var(--title);border:1px solid rgba(40,156,255,0.16);box-shadow:0 14px 30px rgba(56,92,138,0.12);border-radius:16px;width:58px;height:46px;display:flex;align-items:center;justify-content:center;font-weight:800;cursor:pointer;font-family:inherit}
.floating-service a.register-link{background:var(--grad);color:#fff;border:0}
.banner-slider{max-width:1200px;margin:0 auto 36px;border-radius:22px;background:#fff;box-shadow:0 18px 40px rgba(56,92,138,0.12);overflow:hidden;position:relative;z-index:1;height:360px;border:1px solid rgba(40,156,255,0.12)}
.banner-slider .slide{display:none;width:100%;height:100%}
.banner-slider .slide.active{display:block}
.banner-slider img{width:100%;height:100%;object-fit:contain;background:#fff}
.banner-caption,.banner-text,.slide-title,.slide-desc,.slide-content,.slide-card,.banner-card{display:none!important}
.slider-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:3;border:none;border-radius:999px;background:rgba(255,255,255,0.86);color:var(--title);box-shadow:0 8px 20px rgba(56,92,138,0.16);width:42px;height:42px;font-size:26px;cursor:pointer}
.slider-arrow.prev{left:16px}.slider-arrow.next{right:16px}
.slider-dots{position:absolute;left:50%;bottom:14px;transform:translateX(-50%);display:flex;gap:8px;z-index:3}
.slider-dots button{width:9px;height:9px;border-radius:50%;border:none;background:rgba(40,156,255,0.24);cursor:pointer;padding:0}
.slider-dots button.active{background:var(--title)}
.section{margin:0 auto 28px;max-width:1200px}
.card,.zone-card,.info-card,.review-card,.faq-item,.notice-card{background:rgba(255,255,255,0.92);border:1px solid rgba(40,156,255,0.16);box-shadow:var(--shadow);border-radius:22px;padding:24px}
h1,h2,h3,.section-title{color:var(--title);line-height:1.35;margin:0 0 14px}
h1{font-size:34px}.section-title{font-size:26px}.section-lead{color:var(--muted);max-width:860px;margin-bottom:18px}
.hero-card{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(280px,.95fr);gap:24px;align-items:center;padding:30px}
.hero-card .content-img{border-radius:20px;background:var(--soft);max-height:280px;width:100%;object-fit:contain;padding:8px}
.quick-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px}
.quick-item{padding:18px;border-radius:18px;background:rgba(255,255,255,.92);border:1px solid var(--line);box-shadow:0 10px 26px rgba(56,92,138,.08)}
.quick-item h3{font-size:17px;margin-bottom:8px}.quick-item p{color:var(--muted);font-size:14px}.quick-item a{color:var(--title);font-weight:800}
.three-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.two-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.matrix-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.four-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.zone-card img,.info-card img{width:100%;height:180px;object-fit:contain;background:var(--soft);border-radius:18px;margin-bottom:16px;padding:8px}
.image-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.image-row img{width:100%;height:170px;object-fit:contain;background:var(--soft);border-radius:18px;padding:8px}.image-row .zone-card{padding:18px}
.app-split{display:grid;grid-template-columns:1fr 1fr;gap:18px}.app-split img{width:100%;height:260px;object-fit:contain;background:var(--soft);border-radius:20px;padding:8px;margin-bottom:16px}
.review-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.review-card p{color:var(--muted)}.review-card strong{color:var(--text)}
.faq-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.faq-item h3{font-size:18px}.faq-item p{color:var(--muted)}
.inner-hero{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(260px,.9fr);gap:24px;align-items:center}.inner-hero img{width:100%;height:260px;object-fit:contain;background:var(--soft);border-radius:20px;padding:8px}
.content-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.content-list .info-card h2{font-size:22px}.content-list .info-card p{color:var(--muted)}
.meta-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}.meta-pills span{background:rgba(40,156,255,.10);color:var(--title);border-radius:999px;padding:7px 12px;font-weight:800;font-size:14px}
.notice-card{background:linear-gradient(180deg,#FFFFFF 0%,#F5F7FB 100%)}.notice-card p{color:var(--muted)}
.site-footer{background:var(--footer);color:var(--footer-text);padding:38px 22px 26px}.footer-inner{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1.3fr 1fr;gap:28px}.footer-brand p{color:#d9e6f7;max-width:620px}.footer-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.footer-links a{color:#EAF3FF;background:rgba(255,255,255,.08);border-radius:12px;padding:10px 12px}.footer-note{max-width:1200px;margin:24px auto 0;color:#cddced;border-top:1px solid rgba(255,255,255,.12);padding-top:18px;font-size:14px}
.drawer-mask,.mobile-drawer{display:none}.drawer-open{overflow:hidden}
@media (max-width:1180px){.page-shell{grid-template-columns:1fr;max-width:1220px}.side-channel,.floating-service{display:none}.quick-grid{grid-template-columns:repeat(3,1fr)}}
@media (max-width:900px){.header-inner{display:none}.mobile-top{display:flex;min-height:66px;padding:0 14px;align-items:center;justify-content:space-between}.menu-btn{width:42px;height:42px;border:1px solid var(--line);background:#fff;border-radius:14px;display:flex;flex-direction:column;gap:5px;align-items:center;justify-content:center}.menu-btn span{display:block;width:18px;height:2px;background:var(--title);border-radius:4px}.mobile-logo img{max-height:46px}.register-mini{min-height:38px;padding:0 16px}.page-shell{padding:86px 14px 88px}.banner-slider{height:220px;border-radius:18px;margin-bottom:22px}.slider-arrow{width:36px;height:36px;font-size:22px}.hero-card,.inner-hero,.two-grid,.three-grid,.matrix-grid,.four-grid,.content-list,.app-split,.review-grid,.faq-list,.footer-inner{grid-template-columns:1fr}.quick-grid{grid-template-columns:repeat(2,1fr)}.image-row{grid-template-columns:1fr 1fr}h1{font-size:28px}.section-title{font-size:23px}.drawer-mask{display:block;position:fixed;inset:0;background:rgba(25,43,62,.45);z-index:9998;opacity:0;pointer-events:none;transition:.2s}.mobile-drawer{display:block;position:fixed;left:0;top:0;bottom:0;width:84vw;max-width:320px;background:#fff;z-index:10000;transform:translateX(-105%);transition:.24s ease;box-shadow:18px 0 50px rgba(36,52,71,.25);padding:16px;overflow:auto}.drawer-open .mobile-drawer{transform:translateX(0)}.drawer-open .drawer-mask{opacity:1;pointer-events:auto}.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}.drawer-close{border:1px solid var(--line);background:var(--soft);border-radius:14px;width:38px;height:38px;font-size:24px;color:var(--title)}.drawer-nav{display:grid;gap:6px}.drawer-nav a{padding:11px 12px;border-radius:14px;color:var(--muted);font-weight:800;background:#F5F7FB}.drawer-nav a.active,.drawer-nav a:hover{color:var(--title);background:rgba(40,156,255,.10)}.mobile-bottom-nav{position:fixed;left:10px;right:10px;bottom:10px;z-index:9000;display:grid;grid-template-columns:repeat(4,1fr);gap:8px;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border:1px solid var(--line);border-radius:20px;padding:8px;box-shadow:0 16px 36px rgba(56,92,138,.16)}.mobile-bottom-nav a{text-align:center;color:var(--title);font-weight:800;padding:8px 4px;border-radius:14px;background:rgba(40,156,255,.08)}.site-footer{padding-bottom:100px}}
@media (max-width:540px){.quick-grid,.image-row{grid-template-columns:1fr}.card,.zone-card,.info-card,.review-card,.faq-item,.notice-card{padding:18px}.banner-slider{height:185px}.hero-card{padding:20px}.app-split img,.inner-hero img{height:220px}}