*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#E6EBF2;color:#243447;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.75;overflow-x:hidden}body.drawer-open{overflow:hidden}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button{font:inherit}.container{width:min(1180px,calc(100% - 40px));margin:0 auto}.site-header{position:sticky;top:0;z-index:9999;background:rgba(245,247,251,.96);backdrop-filter:blur(10px);box-shadow:0 8px 24px rgba(56,92,138,.10)}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}.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:18px;white-space:nowrap;flex-wrap:nowrap}.nav-link{position:relative;color:#4E5F7A;font-weight:650;padding:23px 2px 20px;border:0;background:transparent;cursor:pointer}.nav-link:hover,.nav-link.active{color:#289CFF}.nav-link.active:after{content:"";position:absolute;height:3px;border-radius:99px;background:#289CFF;left:2px;right:2px;bottom:12px}.header-action{flex:0 0 auto;display:flex;align-items:center}.main-btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 26px;background:linear-gradient(180deg,#32D1F6 0%,#27B9F4 35%,#249BFF 100%);color:#fff!important;border-radius:999px;box-shadow:0 10px 24px rgba(36,155,255,.25);font-weight:800;transition:.22s ease}.main-btn:hover{background:linear-gradient(180deg,#48D9F7 0%,#1E90F0 100%);transform:translateY(-1px)}.main-btn.compact{min-height:42px;padding:0 22px}.dropdown{position:relative}.dropdown-menu{position:absolute;top:calc(100% - 4px);left:50%;transform:translate(-50%,10px);min-width:190px;padding:8px;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:10000;opacity:0;visibility:hidden;pointer-events:none;transition:.18s ease}.dropdown:hover .dropdown-menu,.dropdown:focus-within .dropdown-menu,.dropdown.open .dropdown-menu{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0)}.dropdown-menu a{display:block;padding:10px 14px;color:#4E5F7A;border-radius:10px;white-space:nowrap}.dropdown-menu a:hover{color:#289CFF;background:rgba(40,156,255,.08)}.mobile-menu-btn{display:none;flex:0 0 auto;width:42px;height:42px;border:0;background:transparent;padding:9px;cursor:pointer}.mobile-menu-btn span{display:block;height:2px;background:#4E5F7A;margin:5px 0;border-radius:3px}.mobile-drawer{position:fixed;left:0;top:0;bottom:0;width:min(84vw,320px);background:#fff;z-index:12000;transform:translateX(-105%);transition:transform .26s ease;box-shadow:18px 0 42px rgba(36,52,71,.18);overflow:auto}.mobile-drawer.open{transform:translateX(0)}.drawer-overlay{position:fixed;inset:0;background:rgba(36,52,71,.42);z-index:11000;opacity:0;visibility:hidden;transition:.22s ease}.drawer-overlay.show{opacity:1;visibility:visible}.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 18px 14px;border-bottom:1px solid #EEF2F7}.drawer-logo img{max-height:46px;width:auto}.drawer-close{width:40px;height:40px;border:0;border-radius:12px;background:#EEF2F7;color:#4E5F7A;font-size:28px;line-height:1;cursor:pointer}.drawer-nav{padding:12px}.drawer-nav a{display:block;padding:12px 14px;margin:3px 0;border-radius:10px;color:#4E5F7A;font-weight:650}.drawer-nav a:hover{background:rgba(40,156,255,.08);color:#289CFF}main{min-height:60vh}.banner-slider{max-width:1200px;margin:28px auto 38px;border-radius:22px;background:#fff;box-shadow:0 18px 40px rgba(56,92,138,.12);overflow:hidden;position:relative;aspect-ratio:16/6.2}.slides{height:100%;position:relative}.slide{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .5s ease}.slide.active{opacity:1;visibility:visible}.banner-slider img{width:100%;height:100%;object-fit:contain;background:#fff}.slider-arrow{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border:0;border-radius:50%;background:rgba(255,255,255,.88);box-shadow:0 8px 22px rgba(36,52,71,.18);cursor:pointer;z-index:4}.slider-arrow:before{content:"";display:block;width:10px;height:10px;border-top:3px solid #289CFF;border-right:3px solid #289CFF;position:absolute;top:15px}.slider-prev{left:16px}.slider-prev:before{transform:rotate(-135deg);left:18px}.slider-next{right:16px}.slider-next:before{transform:rotate(45deg);left:14px}.slider-dots{position:absolute;left:50%;bottom:14px;transform:translateX(-50%);display:flex;gap:9px;z-index:4}.slider-dot{width:9px;height:9px;border:0;border-radius:50%;padding:0;background:rgba(255,255,255,.68);box-shadow:0 0 0 1px rgba(40,156,255,.35);cursor:pointer}.slider-dot.active{width:24px;border-radius:99px;background:#289CFF}.banner-caption,.banner-text,.slide-title,.slide-desc,.slide-content,.slide-card,.banner-card{display:none!important}.section{padding:38px 0}.section.alt{background:#EEF2F7}.section.deep{background:#DDE4EE}.section-head{max-width:760px;margin:0 auto 24px;text-align:center}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:#289CFF;font-weight:800;font-size:.88rem;letter-spacing:.08em}.eyebrow:before{content:"";width:22px;height:2px;background:#289CFF}.section h1,.section h2,.section h3,.section-title,.inner-hero h1{color:#289CFF;line-height:1.3}.section h1,.inner-hero h1{font-size:clamp(2rem,4vw,3.4rem);margin:.35em 0}.section h2{font-size:clamp(1.55rem,3vw,2.35rem);margin:.35em 0}.section h3{margin:.2em 0 .65em}.lead{color:#66788A;font-size:1.08rem}.welcome-grid,.split-grid,.app-grid,.security-grid,.inner-hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:30px;align-items:center}.surface{background:rgba(255,255,255,.92);border:1px solid rgba(40,156,255,.16);border-radius:22px;box-shadow:0 14px 36px rgba(56,92,138,.10);padding:30px}.surface p:last-child{margin-bottom:0}.content-img{width:100%;height:auto;object-fit:contain;border-radius:18px;background:#fff;box-shadow:0 14px 36px rgba(56,92,138,.12)}.card-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}.card-grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.card,.zone-card,.info-card,.review-card{background:rgba(255,255,255,.92);border:1px solid rgba(40,156,255,.16);box-shadow:0 14px 36px rgba(56,92,138,.10);border-radius:18px;padding:22px}.card{min-height:100%;display:flex;flex-direction:column}.card p{color:#66788A}.text-link{margin-top:auto;color:#289CFF;font-weight:800}.text-link:hover{text-decoration:underline}.zone-card img{width:100%;height:165px;object-fit:contain;background:#fff;border-radius:14px;margin-bottom:16px}.feature-list,.steps{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:20px}.feature-item,.step{background:#F5F7FB;border:1px solid rgba(40,156,255,.12);border-radius:14px;padding:16px}.feature-item strong,.step strong{display:block;color:#289CFF;margin-bottom:5px}.notice-box{background:linear-gradient(135deg,#F5F7FB,#FFFFFF);border-left:4px solid #289CFF;border-radius:16px;padding:20px 22px;box-shadow:0 10px 28px rgba(56,92,138,.08)}.review-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.review-card p{color:#4E5F7A;margin-top:0}.review-card span{color:#8A9AAF;font-size:.92rem}.faq-list{max-width:920px;margin:0 auto;display:grid;gap:13px}.faq-item{background:rgba(255,255,255,.94);border:1px solid rgba(40,156,255,.14);border-radius:16px;overflow:hidden}.faq-item summary{list-style:none;cursor:pointer;padding:18px 22px;font-weight:800;color:#243447;position:relative}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"+";position:absolute;right:20px;color:#289CFF;font-size:24px;top:11px}.faq-item[open] summary:after{content:"−"}.faq-item p{padding:0 22px 20px;margin:0;color:#66788A}.inner-hero{padding:48px 0 28px}.inner-hero .surface{padding:36px}.inner-hero .content-img{max-height:420px}.content-stack{display:grid;gap:20px}.pill-row{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0}.pill{display:inline-flex;padding:6px 12px;border-radius:999px;background:rgba(40,156,255,.09);color:#289CFF;font-weight:750;font-size:.9rem}.number-list{counter-reset:item;display:grid;gap:12px}.number-list .step{position:relative;padding-left:58px}.number-list .step:before{counter-increment:item;content:counter(item,decimal-leading-zero);position:absolute;left:15px;top:15px;color:#289CFF;font-weight:900}.site-footer{background:#243447;color:#EAF3FF;margin-top:40px;padding-top:44px}.footer-grid{display:grid;grid-template-columns:1.45fr repeat(3,1fr);gap:28px}.footer-brand img{max-height:52px;width:auto;margin-bottom:16px}.site-footer h3{color:#fff;margin:0 0 12px}.site-footer a{display:block;color:#CFE1F4;padding:4px 0}.site-footer a:hover{color:#fff}.site-footer p{color:#CFE1F4}.footer-notice{border-top:1px solid rgba(234,243,255,.14);margin-top:30px;padding:20px 0 28px;text-align:center;font-size:.92rem}.footer-notice p{margin:5px 0}.action-row{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:22px}.muted{color:#8A9AAF}.center{text-align:center}.spacer-small{height:8px}
@media(max-width:1080px){.nav{gap:12px}.nav-link{font-size:.94rem}.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:860px){.container{width:min(100% - 28px,1180px)}.header-inner{gap:12px;min-height:66px}.nav-wrap{display:none}.mobile-menu-btn{display:block}.logo{position:absolute;left:50%;transform:translateX(-50%)}.logo img{max-height:44px}.header-action .main-btn{min-height:38px;padding:0 17px}.banner-slider{margin:18px 14px 28px;border-radius:16px;aspect-ratio:16/7.2}.welcome-grid,.split-grid,.app-grid,.security-grid,.inner-hero-grid{grid-template-columns:1fr}.inner-hero .inner-hero-grid>div:first-child{order:2}.inner-hero .inner-hero-grid>div:last-child{order:1}.footer-grid{grid-template-columns:1fr 1fr}.review-grid,.card-grid.three{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.section{padding:28px 0}.surface{padding:22px;border-radius:18px}.banner-slider{aspect-ratio:16/9}.slider-arrow{width:38px;height:38px}.slider-arrow:before{top:12px}.slider-prev:before{left:15px}.slider-next:before{left:12px}.card-grid,.card-grid.three,.review-grid,.feature-list,.steps,.footer-grid{grid-template-columns:1fr}.zone-card img{height:auto}.inner-hero{padding-top:28px}.inner-hero .surface{padding:24px}.section-head{text-align:left}.section-head .eyebrow{justify-content:flex-start}.action-row{align-items:stretch}.action-row .main-btn{width:100%}.footer-grid>div:not(.footer-brand){padding-top:4px}.footer-notice{text-align:left}}
