*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#F4FBFF;color:#223044;font:16px/1.75 Arial,"PingFang SC","Microsoft YaHei",sans-serif;overflow-x:hidden}body.drawer-open{overflow:hidden}a{color:#0877C9;text-decoration:none;touch-action:manipulation}a:hover{text-decoration:underline}img{max-width:100%}button{font:inherit;cursor:pointer;touch-action:manipulation}h1,h2,h3{color:#0877C9;line-height:1.35}h1{font-size:clamp(27px,3.1vw,38px);margin:0 0 18px}h2{font-size:24px;margin:0 0 16px}h3{font-size:19px;margin:0 0 10px}p{margin:0 0 16px}.container{width:min(1160px,calc(100% - 36px));margin-inline:auto}.site-header{position:sticky;top:0;z-index:1000;background:#fff;border-bottom:1px solid #d8eefa;box-shadow:0 2px 14px rgba(8,42,70,.05)}.header-inner{height:76px;display:flex;align-items:center;gap:24px;justify-content:space-between;flex-wrap:nowrap}.brand-logo{flex:0 0 186px;min-width:0;display:flex;align-items:center;color:#0877C9;white-space:nowrap;font-size:23px}.brand-logo img{height:36px;width:auto;max-width:185px;object-fit:contain}.desktop-nav{display:flex;align-items:stretch;gap:clamp(10px,1.6vw,26px);min-width:0;white-space:nowrap;height:100%}.desktop-nav a{display:flex;align-items:center;justify-content:center;padding:0 3px;border-bottom:2px solid transparent;color:#223044;font-weight:600;min-height:40px}.desktop-nav a.active{color:#0877C9;border-bottom-color:#1CA8F6}.register-btn{display:inline-flex;align-items:center;justify-content:center;min-height:42px;min-width:88px;padding:5px 22px;flex-shrink:0;border-radius:99px;background:linear-gradient(135deg,#38C7FF 0%,#1CA8F6 48%,#0877C9 100%);color:#fff;font-weight:700;box-shadow:0 4px 12px rgba(28,168,246,.2)}.register-btn:hover{color:#fff;text-decoration:none}.menu-toggle{display:none}.mobile-drawer,.drawer-mask{display:none}.page{padding:32px 0 62px}.intro,.content-section,.qa-card,.brand-card,.note-card{background:#fff;border:1px solid #dceef9;border-radius:16px;padding:25px;box-shadow:0 7px 26px rgba(15,87,135,.035)}.intro{margin-bottom:20px}.intro p:last-child,.content-section p:last-child{margin-bottom:0}.intro-lead{font-size:17px;color:#455b6e}.content-section{margin-top:20px}.text-links{display:flex;gap:9px;flex-wrap:wrap;margin-top:16px}.text-links a,.channel-strip a{display:inline-flex;align-items:center;min-height:40px;padding:7px 14px;border-radius:10px;background:#EAF7FF;font-weight:600}.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:14px;background:#EAF7FF;aspect-ratio:16/9}.media>img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:center center;display:block}.image-placeholder{display:block;width:100%;height:100%;background:#EAF7FF}.poster-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-bottom:22px}.poster-grid .media{height:250px;aspect-ratio:auto}.hero-copy{text-align:center;margin:0 auto 23px;max-width:900px}.hero-copy p{margin:0}.three-col,.brand-preview,.qa-grid,.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.three-col article,.brand-preview article{background:#fff;padding:24px;border:1px solid #dceef9;border-radius:16px}.brand-preview article p{font-size:15px}.brand-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.brand-card .media{height:205px;aspect-ratio:auto;margin-bottom:16px}.brand-card p{margin:0}.feature-media{height:240px;aspect-ratio:auto;margin-bottom:20px}.channel-strip{display:flex;gap:10px;flex-wrap:wrap;background:#EAF7FF;padding:14px;border-radius:14px;margin:20px 0}.qa-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.qa-card h3{margin-bottom:12px}.news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.note-card h2{font-size:21px}.site-footer{background:#082A46;color:#EAF8FF;padding:43px 0 100px}.footer-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:30px}.site-footer h2{color:#fff;font-size:18px}.site-footer a{display:block;color:#EAF8FF;min-height:40px;padding:3px 0}.footer-bottom{border-top:1px solid rgba(234,248,255,.22);padding-top:20px;margin-top:28px;font-size:14px}.footer-bottom p{margin-bottom:7px}.footer-brand img{width:auto;height:32px;object-fit:contain}.mobile-bottom{display:none}.back-top{position:fixed;right:22px;bottom:24px;width:44px;height:44px;border:0;border-radius:99px;background:#0877C9;color:#fff;opacity:0;pointer-events:none;z-index:950}.back-top.show{opacity:1;pointer-events:auto}.drawer-head,.drawer-scroll{padding:15px 20px}.drawer-head{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #dceef9}.drawer-brand img{max-width:150px;height:28px;object-fit:contain}.drawer-close{border:0;background:#EAF7FF;border-radius:9px;min-width:40px;min-height:40px;font-size:28px}.drawer-scroll{overflow-y:auto;height:calc(100vh - 70px);padding-bottom:95px}.drawer-label{font-weight:700;color:#0877C9;margin:15px 0 5px}.drawer-scroll>a{display:block;color:#223044;min-height:42px;padding:8px 12px;border-radius:7px}.drawer-scroll>a:hover{background:#EAF7FF}
@media(max-width:980px){
.mobile-drawer{display:block;position:fixed;inset:0 auto 0 0;width:min(84vw,320px);background:#fff;color:#223044;z-index:12000;transform:translateX(-105%);transition:transform .2s ease}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-mask{display:none;position:fixed;inset:0;background:rgba(8,42,70,.42);z-index:11000;opacity:0;pointer-events:none}
.drawer-mask.is-visible{display:block;opacity:1;pointer-events:auto}
.header-inner{height:62px;display:grid;grid-template-columns:72px minmax(0,1fr) 72px;gap:8px;justify-content:stretch}.desktop-nav{display:none}.menu-toggle{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;border:0;background:transparent;min-width:40px;min-height:40px;padding:6px;justify-self:start}.menu-toggle span{width:23px;height:2px;background:#0877C9;border-radius:2px}.brand-logo{flex:auto;justify-content:center;font-size:20px}.brand-logo img{height:28px;max-width:100%;object-fit:contain}.top-register{min-height:36px;min-width:72px;padding:4px 10px;justify-self:end}.site-footer{padding-bottom:106px}.mobile-bottom{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));position:fixed;bottom:0;left:0;right:0;height:64px;z-index:1050;background:#fff;border-top:1px solid #d6eefa;box-shadow:0 -4px 16px rgba(8,42,70,.07)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-height:44px;font-size:14px;font-weight:600}.mobile-bottom a:last-child{color:#0877C9}.back-top{bottom:83px}.page{padding:25px 0 35px}.poster-grid .media{height:175px}.three-col{grid-template-columns:1fr}.brand-preview{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:640px){.container{width:min(100% - 28px,1160px)}h1{font-size:29px}h2{font-size:21px}.intro,.content-section,.qa-card,.brand-card,.note-card{padding:19px}.poster-grid{grid-template-columns:1fr;gap:10px}.poster-grid .media{height:160px;aspect-ratio:auto}.feature-media{height:165px}.brand-grid,.qa-grid,.news-grid{grid-template-columns:1fr}.brand-preview{grid-template-columns:1fr}.brand-card .media{height:165px}.footer-cols{grid-template-columns:1fr;gap:12px}.site-footer h2{margin-bottom:8px}.site-footer a{min-height:40px}.hero-copy{text-align:left}}
@media(min-width:641px) and (max-width:980px){.poster-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.brand-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}