*{box-sizing:border-box}html,body{margin:0;min-height:100%;overflow-x:hidden}body{font-family:Arial,"Microsoft YaHei",sans-serif;background:#E6EBF2;color:#243447;line-height:1.75}.site-header{position:sticky;top:0;z-index:9999;background:rgba(245,247,251,.96);backdrop-filter:blur(12px);box-shadow:0 8px 24px rgba(56,92,138,.12)}.header-inner{max-width:1280px;margin:auto;min-height:72px;padding:0 22px;display:flex;align-items:center;justify-content:space-between;gap:20px}.logo{flex:0 0 auto}.logo img{display:block;max-height:48px;width:auto}.nav-wrap{flex:1;min-width:0;display:flex;justify-content:center}.nav{display:flex;align-items:center;gap:18px;white-space:nowrap;flex-wrap:nowrap}.nav a{color:#4E5F7A;text-decoration:none;font-size:15px}.nav a:hover,.nav a.active{color:#289CFF}.dropdown{position:relative}.dropdown-menu{display:none;position:absolute;top:100%;left:0;min-width:185px;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}.dropdown:hover .dropdown-menu{display:block}.dropdown-menu a{display:block;padding:10px 12px;border-radius:9px}.dropdown-menu a:hover{background:rgba(40,156,255,.08)}.main-btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 22px;border-radius:999px;background:linear-gradient(180deg,#32D1F6 0%,#27B9F4 35%,#249BFF 100%);color:#fff!important;text-decoration:none;box-shadow:0 10px 22px rgba(36,155,255,.24);white-space:nowrap}.header-action{flex:0 0 auto}.menu-toggle{display:none;border:0;background:none;font-size:25px;color:#289CFF}.container{max-width:1200px;margin:auto;padding:0 20px}.banner-slider{max-width:1200px;margin:28px auto 22px;border-radius:20px;background:#fff;box-shadow:0 18px 40px rgba(56,92,138,.12);overflow:hidden;position:relative}.slides{position:relative}.slide{display:none}.slide.active{display:block}.slide img{display:block;width:100%;height:auto;object-fit:contain;background:#fff}.slider-btn{position:absolute;top:50%;transform:translateY(-50%);width:42px;height:42px;border:0;border-radius:50%;background:rgba(36,52,71,.55);color:#fff;font-size:22px;cursor:pointer}.prev{left:14px}.next{right:14px}.dots{position:absolute;left:0;right:0;bottom:12px;display:flex;justify-content:center;gap:8px}.dot{width:9px;height:9px;border-radius:50%;border:0;background:rgba(255,255,255,.55)}.dot.active{background:#289CFF}.hero-note,.panel,.card,.review-card,.faq-item{background:rgba(255,255,255,.94);border:1px solid rgba(40,156,255,.16);box-shadow:0 14px 36px rgba(56,92,138,.10);border-radius:20px}.hero-note{padding:24px;margin-bottom:28px}.section{padding:34px 0}.section-title,h1,h2,h3{color:#289CFF}.section-title{margin:0 0 18px;font-size:30px}.lead{color:#66788A}.grid{display:grid;gap:18px}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}.card,.review-card,.faq-item,.panel{padding:22px}.card img,.content-img{display:block;max-width:100%;height:auto;object-fit:contain;border-radius:14px}.text-link{color:#289CFF;text-decoration:none;font-weight:700}.feature-split{display:grid;grid-template-columns:1.05fr .95fr;gap:26px;align-items:center}.steps{counter-reset:step}.step{position:relative;padding:20px 20px 20px 64px;background:#fff;border-radius:18px;margin-bottom:14px}.step:before{counter-increment:step;content:counter(step);position:absolute;left:18px;top:18px;width:32px;height:32px;border-radius:50%;display:grid;place-items:center;background:#289CFF;color:#fff;font-weight:700}.page-hero{padding:54px 0 20px}.page-hero h1{font-size:40px;margin:0 0 12px}.page-content{padding:15px 0 50px}.notice{padding:20px;border-left:4px solid #289CFF;background:#EEF7FF;border-radius:12px}footer{background:#243447;color:#EAF3FF;margin-top:40px}.footer-inner{max-width:1200px;margin:auto;padding:42px 20px;display:grid;grid-template-columns:1.2fr .8fr 1fr;gap:30px}.footer-brand img{max-height:48px}.footer-inner a{display:block;color:#EAF3FF;text-decoration:none;margin:6px 0}.mobile-drawer,.drawer-overlay,.mobile-bottom{display:none}@media(max-width:1050px){.nav-wrap{display:none}.menu-toggle{display:block}.header-inner{display:grid;grid-template-columns:56px 1fr auto}.logo{justify-self:center}.mobile-drawer{display:block;position:fixed;inset:0 auto 0 0;width:84%;max-width:320px;background:#fff;z-index:12000;transform:translateX(-105%);transition:.3s;padding:18px;overflow:auto}.mobile-drawer.open{transform:translateX(0)}.drawer-overlay{display:block;position:fixed;inset:0;background:rgba(20,40,60,.45);z-index:11000;opacity:0;visibility:hidden;transition:.3s}.drawer-overlay.open{opacity:1;visibility:visible}.drawer-head{display:flex;justify-content:space-between;align-items:center;padding-bottom:14px;border-bottom:1px solid #DDE4EE}.drawer-head img{max-height:40px}.drawer-close{border:0;background:none;font-size:30px}.mobile-drawer nav a{display:block;padding:12px 4px;border-bottom:1px solid #EEF2F7;color:#4E5F7A;text-decoration:none}.menu-open{overflow:hidden}.mobile-bottom{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:9000;background:#fff;box-shadow:0 -8px 24px rgba(56,92,138,.12);justify-content:space-around;padding:10px 4px}.mobile-bottom a{color:#4E5F7A;text-decoration:none;font-size:14px}body{padding-bottom:58px}}@media(max-width:760px){.header-inner{padding:0 12px;min-height:64px}.logo img{max-height:38px}.main-btn{padding:8px 16px}.banner-slider{margin:14px 12px 18px;border-radius:14px}.slider-btn{width:34px;height:34px}.grid-2,.grid-3,.grid-4,.feature-split,.footer-inner{grid-template-columns:1fr}.section{padding:24px 0}.section-title{font-size:25px}.page-hero h1{font-size:31px}.step{padding-left:60px}.container{padding:0 14px}}