*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;background:#F3FBFF;color:#34465C;line-height:1.75}a{text-decoration:none;color:inherit}img{max-width:100%;display:block}.container{width:min(1180px,calc(100% - 32px));margin:0 auto}.site-header{position:sticky;top:0;z-index:9999;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border-bottom:1px solid rgba(34,174,234,.12)}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}.logo img{max-height:52px;width:auto}.nav-core{display:flex;align-items:center;gap:22px;white-space:nowrap;flex-wrap:nowrap}.nav-core a{color:#34465C;font-weight:700;position:relative;padding:6px 2px}.nav-core a:hover,.nav-core a.active{color:#22AEEA}.nav-core a.active:after{content:"";position:absolute;left:50%;bottom:-10px;width:22px;height:3px;border-radius:999px;background:#22AEEA;transform:translateX(-50%)}.main-btn{display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#45C9F5 0%,#22AEEA 52%,#168ED4 100%);color:#fff;border-radius:999px;padding:10px 22px;font-weight:800;box-shadow:0 12px 28px rgba(34,174,234,.24);transition:.25s}.main-btn:hover{transform:translateY(-2px);box-shadow:0 18px 34px rgba(34,174,234,.32)}.header-register{white-space:nowrap}.channel-bar{background:#fff;border-bottom:1px solid rgba(34,174,234,.12);overflow-x:auto;white-space:nowrap}.channel-bar::-webkit-scrollbar{height:0}.channel-track{display:flex;gap:8px;padding:9px 0}.channel-bar a{display:inline-flex;align-items:center;color:#5C6F82;padding:7px 13px;border-radius:999px;font-size:14px;border:1px solid transparent}.channel-bar a:hover,.channel-bar a.active{color:#22AEEA;background:rgba(34,174,234,.10);border-color:rgba(34,174,234,.16)}.floating-service{position:fixed;right:18px;top:42%;z-index:50;display:flex;flex-direction:column;gap:8px}.floating-service a{background:#fff;color:#34465C;border:1px solid rgba(34,174,234,.12);box-shadow:0 12px 30px rgba(31,133,184,.12);border-radius:999px;padding:9px 12px;font-size:13px;text-align:center}.floating-service a.register-link{background:linear-gradient(135deg,#45C9F5 0%,#22AEEA 52%,#168ED4 100%);color:#fff}.menu-toggle{display:none;background:transparent;border:0;width:42px;height:42px;padding:8px}.menu-toggle span{display:block;height:2px;background:#147FB8;margin:6px 0;border-radius:99px}.drawer-mask{display:none;position:fixed;inset:0;background:rgba(8,25,42,.38);z-index:10000}.drawer-mask.show{display:block}.mobile-drawer{position:fixed;left:0;top:0;bottom:0;width:84%;max-width:320px;background:#fff;z-index:10001;transform:translateX(-105%);transition:.28s;box-shadow:20px 0 40px rgba(31,133,184,.16);overflow:auto}.mobile-drawer.open{transform:translateX(0)}.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px;border-bottom:1px solid rgba(34,174,234,.12)}.drawer-head img{height:46px}.drawer-close{border:0;background:#F3FBFF;color:#147FB8;border-radius:50%;width:34px;height:34px;font-size:24px}.drawer-nav{display:grid;padding:12px}.drawer-nav a{padding:12px 14px;border-radius:14px;color:#34465C}.drawer-nav a.active,.drawer-nav a:hover{background:#F3FBFF;color:#22AEEA}.drawer-open{overflow:hidden}.mobile-bottom-nav{display:none}.banner-slider{max-width:1180px;margin:24px auto 34px;border-radius:24px;background:#F8FCFF;box-shadow:0 16px 38px rgba(31,133,184,.12);overflow:hidden;position:relative;height:340px}.slide{display:none;width:100%;height:100%}.slide.active{display:block}.banner-slider img{width:100%;height:100%;object-fit:contain;background:#F8FCFF}.banner-caption,.banner-text,.slide-title,.slide-desc,.slide-content,.slide-card,.banner-card{display:none!important}.slider-btn{position:absolute;top:50%;transform:translateY(-50%);width:38px;height:38px;border:0;border-radius:50%;background:rgba(255,255,255,.86);color:#147FB8;font-size:26px;cursor:pointer}.slider-prev{left:14px}.slider-next{right:14px}.slider-dots{position:absolute;left:0;right:0;bottom:12px;display:flex;justify-content:center;gap:8px}.slider-dot{width:9px;height:9px;border:0;border-radius:99px;background:rgba(20,127,184,.28);cursor:pointer}.slider-dot.active{width:24px;background:#22AEEA}.section{padding:44px 0}.hero-intro{background:linear-gradient(135deg,#fff 0%,#F8FCFF 100%);border:1px solid rgba(34,174,234,.12);border-radius:28px;padding:34px;display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:center;box-shadow:0 16px 38px rgba(31,133,184,.10)}.eyebrow{display:inline-flex;color:#22AEEA;background:rgba(34,174,234,.10);border-radius:999px;padding:5px 12px;font-weight:800;font-size:13px}h1,h2,h3,.section-title{color:#22AEEA;line-height:1.25;margin:0 0 14px}h1{font-size:42px;color:#147FB8}h2{font-size:30px}.lead{font-size:17px;color:#5C6F82}.hero-media,.topic-media{background:#F8FCFF;border:1px solid rgba(34,174,234,.12);border-radius:24px;padding:14px}.hero-media img,.topic-media img{height:260px;width:100%;object-fit:contain}.ticker{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.ticker-item,.card,.zone-card,.info-card,.review-card,.faq-item,.notice-box{background:#fff;border:1px solid rgba(34,174,234,.12);box-shadow:0 16px 38px rgba(31,133,184,.12);border-radius:20px;padding:22px}.ticker-item strong{color:#147FB8;display:block;margin-bottom:6px}.board-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.board-grid .card{position:relative;overflow:hidden}.board-grid .card:before{content:"";position:absolute;right:-24px;top:-24px;width:92px;height:92px;border-radius:50%;background:rgba(34,174,234,.10)}.topic{display:grid;grid-template-columns:1fr 1.15fr;gap:28px;align-items:center}.topic.reverse{grid-template-columns:1.15fr 1fr}.topic h2,.topic h3{color:#147FB8}.feature-list{display:grid;gap:10px;margin:18px 0}.feature-list span{padding-left:16px;position:relative;color:#5C6F82}.feature-list span:before{content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:50%;background:#22AEEA}.horizontal-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.product-card{background:#fff;border:1px solid rgba(34,174,234,.12);box-shadow:0 16px 38px rgba(31,133,184,.12);border-radius:20px;overflow:hidden}.product-card img{width:100%;height:150px;object-fit:contain;background:#F8FCFF;padding:8px}.product-card div{padding:16px}.matrix{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.app-panel{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:center;background:#fff;border:1px solid rgba(34,174,234,.12);border-radius:28px;padding:28px;box-shadow:0 16px 38px rgba(31,133,184,.12)}.app-panel img{height:260px;width:100%;object-fit:contain;background:#F8FCFF;border-radius:22px}.split-list{display:grid;grid-template-columns:1fr 1fr;gap:20px}.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.review-card b{color:#147FB8}.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.notice-box{background:linear-gradient(135deg,#fff,#F8FCFF);border-color:rgba(34,174,234,.20)}.page-hero{padding:46px 0 24px}.page-hero-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center;background:#fff;border:1px solid rgba(34,174,234,.12);border-radius:28px;padding:32px;box-shadow:0 16px 38px rgba(31,133,184,.12)}.page-hero img{height:250px;width:100%;object-fit:contain;background:#F8FCFF;border-radius:22px}.content-grid{display:grid;grid-template-columns:2fr 1fr;gap:22px}.content-stack{display:grid;gap:18px}.mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.simple-list{margin:0;padding-left:18px;color:#5C6F82}.plain-link{color:#147FB8;font-weight:800}.site-footer{background:#163B57;color:#EAF7FE;margin-top:48px;padding:42px 0}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:28px}.footer-brand img{height:52px;margin-bottom:14px}.site-footer h3{color:#fff;font-size:18px}.site-footer a{display:block;color:#EAF7FE;margin:8px 0}.site-footer p{color:#D5ECF8;margin:0}@media(max-width:900px){.nav-core{display:none}.menu-toggle{display:block}.header-inner{min-height:64px;gap:10px}.logo{position:absolute;left:50%;transform:translateX(-50%)}.logo img{max-height:44px}.header-register{padding:8px 16px}.floating-service{display:none}.mobile-bottom-nav{position:fixed;left:0;right:0;bottom:0;z-index:9998;display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-top:1px solid rgba(34,174,234,.16);box-shadow:0 -10px 28px rgba(31,133,184,.10)}.mobile-bottom-nav a{text-align:center;padding:9px 0 7px;font-size:13px;color:#5C6F82}.mobile-bottom-nav a.active{color:#22AEEA;font-weight:800}body{padding-bottom:58px}.banner-slider{height:190px;border-radius:18px;margin:16px auto 24px}.slider-btn{width:32px;height:32px;font-size:22px}.hero-intro,.topic,.topic.reverse,.app-panel,.page-hero-inner,.content-grid{grid-template-columns:1fr}.ticker{grid-template-columns:1fr 1fr}.board-grid,.horizontal-cards,.matrix,.reviews,.faq-grid,.mini-grid,.split-list,.footer-grid{grid-template-columns:1fr}.hero-media img,.topic-media img,.app-panel img,.page-hero img{height:210px}.section{padding:28px 0}h1{font-size:30px}h2{font-size:24px}.container{width:min(100% - 24px,1180px)}}@media(max-width:520px){.ticker{grid-template-columns:1fr}.channel-track{width:max-content}.product-card img{height:130px}.hero-intro,.page-hero-inner,.app-panel{padding:22px}.reviews{gap:14px}}