:root{--bg:#E6EBF2;--surface:#fff;--surface-soft:#F5F7FB;--surface-alt:#EEF2F7;--surface-deep:#DDE4EE;--primary:#289CFF;--nav:#4E5F7A;--text:#243447;--muted:#66788A;--hint:#8A9AAF;--border:rgba(40,156,255,.16);--shadow:0 14px 36px rgba(56,92,138,.12);--radius:20px;--header-h:76px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;padding-top:var(--header-h);background:var(--bg);color:var(--text);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.75;overflow-x:hidden}body.drawer-open{overflow:hidden}a{color:inherit;text-decoration:none}img{display:block;max-width:100%;height:auto}.container{width:min(1200px,calc(100% - 40px));margin:0 auto}.narrow{width:min(860px,calc(100% - 40px));margin:0 auto}.skip-link{position:fixed;left:16px;top:-80px;z-index:12000;background:#fff;padding:10px 16px;border-radius:10px}.skip-link:focus{top:12px}.site-header{position:fixed;top:0;left:0;right:0;z-index:11000;background:rgba(245,247,251,.96);backdrop-filter:blur(14px);border-bottom:1px solid rgba(40,156,255,.1);box-shadow:0 8px 24px rgba(56,92,138,.07)}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:var(--header-h)}.logo{flex:0 0 auto}.logo img{max-height:52px;width:auto}.nav-wrap{flex:1 1 auto;min-width:0;display:flex;justify-content:center}.nav{display:flex;align-items:center;gap:19px;white-space:nowrap;flex-wrap:nowrap}.nav>a,.nav-button{position:relative;color:var(--nav);font-weight:700;font-size:15px;padding:12px 0;background:none;border:0;cursor:pointer;font-family:inherit}.nav>a:hover,.nav>a.active,.nav-button:hover,.nav-button.active{color:var(--primary)}.nav>a.active:after,.nav-button.active:after{content:"";position:absolute;left:20%;right:20%;bottom:4px;height:3px;border-radius:99px;background:var(--primary)}.header-action{flex:0 0 auto;display:flex;align-items:center}.dropdown{position:relative}.dropdown-menu{display:none;position:absolute;top:calc(100% + 10px);left:50%;transform:translateX(-50%);min-width:190px;padding:9px;background:#fff;border:1px solid rgba(40,156,255,.12);border-radius:14px;box-shadow:0 18px 38px rgba(56,92,138,.16);z-index:12000}.dropdown:hover .dropdown-menu,.dropdown.open .dropdown-menu{display:block}.dropdown-menu a{display:block;padding:10px 14px;color:var(--nav);white-space:nowrap;border-radius:10px;font-weight:700}.dropdown-menu a:hover{color:var(--primary);background:rgba(40,156,255,.08)}.main-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 25px;border-radius:14px;background:linear-gradient(180deg,#32D1F6 0%,#27B9F4 35%,#249BFF 100%);color:#fff!important;font-weight:800;box-shadow:0 10px 22px rgba(36,155,255,.24);transition:.2s transform,.2s box-shadow}.main-btn:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(36,155,255,.3)}.compact-btn{min-height:44px;padding:0 22px;border-radius:13px}.mobile-header{display:none}.section-pad{padding:72px 0}.soft-section{background:rgba(245,247,251,.72);border-top:1px solid rgba(40,156,255,.08);border-bottom:1px solid rgba(40,156,255,.08)}.section-heading{max-width:780px;margin-bottom:30px}.section-heading.center{text-align:center;margin-inline:auto}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--primary);font-size:14px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.eyebrow:before{content:"";width:24px;height:3px;border-radius:99px;background:var(--primary)}h1,h2,h3,.section-title{color:var(--primary);line-height:1.25;margin-top:0}h1{font-size:clamp(34px,5vw,62px);margin-bottom:22px}h2{font-size:clamp(28px,3.3vw,42px);margin-bottom:16px}h3{font-size:21px;margin-bottom:12px}p{margin-top:0;color:var(--muted)}.section-heading p{font-size:17px}.text-link{display:inline-flex;align-items:center;gap:7px;color:var(--primary);font-weight:800}.text-link:after{content:"→"}.hero-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-top:26px}.banner-slider{width:min(1200px,calc(100% - 40px));margin:28px auto 36px;border-radius:24px;background:#fff;box-shadow:0 18px 40px rgba(56,92,138,.12);overflow:hidden;position:relative;isolation:isolate}.slides{position:relative;aspect-ratio:16/6.6;min-height:280px}.slide{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .5s ease}.slide.active{opacity:1;visibility:visible}.slide img{width:100%;height:100%;object-fit:contain;background:#fff}.slider-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:5;width:46px;height:46px;border:0;border-radius:50%;background:rgba(255,255,255,.9);color:var(--primary);font-size:28px;box-shadow:0 10px 25px rgba(36,52,71,.16);cursor:pointer}.slider-arrow.prev{left:18px}.slider-arrow.next{right:18px}.slider-dots{position:absolute;left:50%;bottom:16px;transform:translateX(-50%);z-index:5;display:flex;gap:9px}.slider-dots button{width:10px;height:10px;padding:0;border:0;border-radius:50%;background:rgba(78,95,122,.35);cursor:pointer}.slider-dots button.active{width:28px;border-radius:99px;background:var(--primary)}.welcome-grid,.split-grid,.inner-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}.welcome-media,.inner-hero-media,.split-media{background:#fff;border:1px solid var(--border);border-radius:24px;padding:14px;box-shadow:var(--shadow)}.welcome-media img,.inner-hero-media img,.split-media img{width:100%;max-height:520px;object-fit:contain;border-radius:16px}.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.quick-card,.info-card,.zone-card,.review-card,.step-card,.notice-card{background:rgba(255,255,255,.92);border:1px solid var(--border);box-shadow:0 14px 36px rgba(56,92,138,.1);border-radius:18px;padding:24px}.quick-card{transition:.2s transform,.2s box-shadow}.quick-card:hover{transform:translateY(-5px);box-shadow:0 20px 42px rgba(56,92,138,.14)}.quick-card h3{margin-bottom:8px}.quick-card p{font-size:14px;margin-bottom:14px}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.feature-grid.five{grid-template-columns:repeat(5,1fr)}.card-index{display:inline-flex;align-items:center;justify-content:center;min-width:40px;height:32px;border-radius:999px;background:rgba(40,156,255,.1);color:var(--primary);font-weight:900;margin-bottom:16px}.media-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.zone-card{padding:14px}.zone-card img{width:100%;aspect-ratio:16/10;object-fit:contain;background:var(--surface-soft);border-radius:14px}.zone-card-body{padding:18px 8px 8px}.app-panel{display:grid;grid-template-columns:.85fr 1.15fr;gap:38px;align-items:center;background:#fff;border:1px solid var(--border);border-radius:26px;padding:28px;box-shadow:var(--shadow)}.app-panel img{width:100%;max-height:470px;object-fit:contain;border-radius:18px;background:var(--surface-soft)}.mini-points{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:24px}.mini-point{padding:16px;border-radius:14px;background:var(--surface-alt);border:1px solid rgba(40,156,255,.08)}.mini-point strong{display:block;color:var(--primary);margin-bottom:5px}.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.step-card>span{display:inline-block;color:var(--primary);font-size:24px;font-weight:900;margin-bottom:12px}.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.review-card{margin:0}.review-card p{color:var(--text);font-size:16px}.review-card footer{color:var(--hint);font-weight:700}.security-panel{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center;background:var(--surface-deep);border-radius:26px;padding:34px}.security-panel img{width:100%;max-height:430px;object-fit:contain;background:#fff;border-radius:18px}.faq-list{display:grid;gap:14px}.faq-list details{background:#fff;border:1px solid var(--border);border-radius:16px;padding:0 20px;box-shadow:0 10px 24px rgba(56,92,138,.07)}.faq-list summary{cursor:pointer;list-style:none;font-weight:800;color:var(--text);padding:18px 34px 18px 0;position:relative}.faq-list summary:after{content:"+";position:absolute;right:0;color:var(--primary);font-size:24px}.faq-list details[open] summary:after{content:"−"}.faq-list details p{padding-bottom:18px;margin-bottom:0}.compliance-strip{background:#243447;color:#EAF3FF;padding:34px 0}.compliance-strip p{color:#EAF3FF;margin-bottom:0}.inner-hero{padding-top:54px}.inner-hero-copy p{font-size:18px;max-width:680px}.inner-hero-media{max-height:500px}.content-band{display:grid;grid-template-columns:1.1fr .9fr;gap:30px}.content-band .notice-card{height:100%}.check-list{display:grid;gap:12px;padding:0;margin:22px 0 0;list-style:none}.check-list li{position:relative;padding-left:28px;color:var(--muted)}.check-list li:before{content:"✓";position:absolute;left:0;top:0;color:var(--primary);font-weight:900}.site-footer{background:#243447;color:#EAF3FF;padding:58px 0 24px}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:36px}.footer-brand img{max-height:52px;margin-bottom:18px}.site-footer h2{font-size:18px;color:#fff;margin-bottom:16px}.site-footer a{display:block;color:#D8E8FA;margin:9px 0}.site-footer a:hover{color:#fff}.site-footer p{color:#BDD0E5}.footer-notice{margin-top:34px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;gap:30px}.footer-notice p:last-child{white-space:nowrap}.mobile-drawer,.drawer-overlay{display:none}.legal-page{min-height:55vh}.register-box{width:min(760px,calc(100% - 40px));margin:80px auto;background:#fff;border:1px solid var(--border);border-radius:24px;padding:48px;text-align:center;box-shadow:var(--shadow)}@media(max-width:1080px){.nav{gap:13px}.nav>a,.nav-button{font-size:14px}.feature-grid.five{grid-template-columns:repeat(3,1fr)}.media-cards{grid-template-columns:repeat(2,1fr)}}@media(max-width:900px){:root{--header-h:66px}.desktop-header{display:none}.mobile-header{display:flex;position:relative}.mobile-logo{position:absolute;left:50%;transform:translateX(-50%)}.mobile-logo img{max-height:44px}.menu-toggle{display:grid;gap:5px;width:44px;height:44px;place-content:center;border:0;border-radius:12px;background:#fff;box-shadow:0 8px 18px rgba(56,92,138,.1)}.menu-toggle span{display:block;width:22px;height:2px;background:var(--nav);border-radius:9px}.drawer-overlay{display:block;position:fixed;inset:0;background:rgba(20,34,52,.42);z-index:11500;opacity:0;visibility:hidden;transition:.25s}.mobile-drawer{display:block;position:fixed;left:0;top:0;bottom:0;width:min(84vw,320px);background:#fff;z-index:11600;transform:translateX(-102%);transition:.3s ease;box-shadow:24px 0 60px rgba(20,34,52,.2);overflow-y:auto}.drawer-open .drawer-overlay{opacity:1;visibility:visible}.drawer-open .mobile-drawer{transform:translateX(0)}.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px;border-bottom:1px solid var(--border)}.drawer-head .logo img{max-height:46px}.drawer-close{width:40px;height:40px;border:0;border-radius:12px;background:var(--surface-alt);color:var(--nav);font-size:28px}.drawer-nav{padding:14px}.drawer-nav a{display:block;padding:12px 14px;border-radius:11px;color:var(--nav);font-weight:700}.drawer-nav a:hover{background:var(--surface-alt);color:var(--primary)}.welcome-grid,.split-grid,.inner-hero-grid,.app-panel,.security-panel,.content-band{grid-template-columns:1fr}.quick-grid{grid-template-columns:repeat(2,1fr)}.feature-grid,.feature-grid.five{grid-template-columns:repeat(2,1fr)}.steps-grid{grid-template-columns:repeat(2,1fr)}.review-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-notice{display:block}.footer-notice p:last-child{white-space:normal}.slides{aspect-ratio:16/8;min-height:230px}}@media(max-width:620px){.container,.narrow{width:min(100% - 24px,1200px)}.section-pad{padding:54px 0}.header-inner{gap:12px}.compact-btn{padding:0 16px;min-height:40px}.banner-slider{width:calc(100% - 24px);margin:18px auto 24px;border-radius:17px}.slides{aspect-ratio:16/10;min-height:210px}.slider-arrow{width:38px;height:38px;font-size:22px}.slider-arrow.prev{left:10px}.slider-arrow.next{right:10px}.quick-grid,.feature-grid,.feature-grid.five,.media-cards,.steps-grid,.review-grid,.footer-grid,.mini-points{grid-template-columns:1fr}.welcome-grid,.split-grid,.inner-hero-grid{gap:26px}.inner-hero{padding-top:34px}.app-panel,.security-panel{padding:18px}.quick-card,.info-card,.zone-card,.review-card,.step-card,.notice-card{padding:20px}.footer-grid{gap:26px}.register-box{padding:30px 22px;margin:48px auto}.section-heading{margin-bottom:24px}}