*{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}img,svg{max-width:100%}a{color:#0877C9;text-decoration:none;touch-action:manipulation}a:hover{text-decoration:underline}button{font:inherit;cursor:pointer;touch-action:manipulation}a:focus-visible,button:focus-visible{outline:3px solid #38C7FF;outline-offset:3px}.shell{width:min(1160px,calc(100% - 40px));margin-inline:auto}.skip-link{position:absolute;left:8px;top:-80px;background:#fff;z-index:15000;padding:10px}.skip-link:focus{top:8px}.site-header{background:#fff;position:relative;z-index:100;box-shadow:0 2px 16px rgba(8,42,70,.06)}.header-inner{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:26px}.brand{display:flex;align-items:center;flex:0 0 auto;min-width:130px}.site-logo{width:auto;height:36px;max-width:165px;object-fit:contain}.logo-fallback{font-size:23px;font-weight:800;color:#0877C9;white-space:nowrap}.desktop-nav{display:flex;align-items:center;justify-content:center;flex:1;gap:clamp(14px,2vw,34px);white-space:nowrap}.desktop-nav a{display:flex;align-items:center;min-height:42px;border-bottom:2px solid transparent;color:#223044;font-weight:600}.desktop-nav a.active{color:#0877C9;border-bottom-color:#1CA8F6}.register-button{min-width:96px;min-height:42px;display:inline-flex;align-items:center;justify-content:center;border-radius:999px;color:#fff;background:linear-gradient(135deg,#38C7FF 0%,#1CA8F6 48%,#0877C9 100%);font-weight:700;box-shadow:0 5px 16px rgba(28,168,246,.2);white-space:nowrap}.register-button:hover{color:#fff;text-decoration:none}.menu-button{display:none}.mobile-drawer,.drawer-mask{display:none}.section{padding:36px 0}.page-hero{padding:44px 0 22px}.eyebrow{color:#0877C9;font-size:13px;font-weight:800;letter-spacing:.12em}.page-hero h1,.hero-copy h1{margin:8px 0 16px;font-size:clamp(28px,3vw,38px);line-height:1.28;color:#0877C9}.lead{max-width:850px;color:#5F7082;font-size:17px}.card,.article-card,.brand-card{background:#fff;border:1px solid #DDEEF9;border-radius:17px;padding:24px;box-shadow:0 7px 22px rgba(8,42,70,.035);max-width:100%}.card h2,.article-card h2,.brand-card h2,.section-title{margin:0 0 12px;color:#0877C9;font-size:23px;line-height:1.4}.card h3,.article-card h3{color:#0877C9;font-size:19px}.card p,.article-card p,.brand-card p{margin:9px 0 13px}.muted{color:#5F7082}.section-heading{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:18px}.section-title{font-size:26px;margin:0}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.text-links{display:flex;gap:12px 20px;flex-wrap:wrap;margin:18px 0 4px}.text-links a{font-weight:700;min-height:40px;display:inline-flex;align-items:center}.channel-strip{background:#EAF7FF;border-block:1px solid #D5EBF9;padding:15px 0}.channel-strip .shell{display:flex;flex-wrap:wrap;gap:10px 22px}.channel-strip a{font-size:14px;font-weight:700;min-height:40px;display:inline-flex;align-items:center}.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}.media-placeholder{position:absolute;inset:0;display:grid;place-items:center;background:linear-gradient(145deg,#EAF7FF,#D8F0FF)}.placeholder-mark{width:29%;height:35%;border:3px solid #B7DEF3;border-radius:13px;position:relative}.placeholder-mark:after{content:"";position:absolute;width:28%;aspect-ratio:1;border-radius:50%;background:#B7DEF3;left:34%;top:30%}.poster-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:22px}.poster-row .media{max-height:260px}.hero-centered{text-align:center;padding:48px 0 22px}.hero-centered .lead{margin-inline:auto}.content-stack{display:grid;gap:18px}.feature-list{display:grid;gap:18px}.feature-list .card{padding:27px}.numbered{display:grid;gap:12px}.numbered .card{display:flex;gap:18px}.number{font-size:32px;color:#1CA8F6;font-weight:800;line-height:1.3}.brand-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.brand-card .media{margin-bottom:14px}.brand-card h2{font-size:20px}.article-card{margin-bottom:18px}.article-card p{line-height:1.85}.notice{background:#EAF7FF;padding:18px 22px;border-radius:12px;border-left:3px solid #1CA8F6}.qa-item{background:#fff;border:1px solid #DDEEF9;border-radius:14px;padding:20px 24px;margin-bottom:12px}.qa-item h2{font-size:19px;color:#0877C9;margin:0 0 7px}.qa-item p{margin:0}.site-footer{background:#082A46;color:#EAF8FF;margin-top:50px;padding:44px 0 22px}.footer-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}.footer-grid h2{color:#fff;font-size:18px;margin:0 0 10px}.footer-grid a{display:block;color:#EAF8FF;min-height:38px;padding:4px 0}.footer-bottom{border-top:1px solid rgba(234,248,255,.2);margin-top:26px;padding-top:20px;display:flex;justify-content:space-between;gap:15px;font-size:14px}.bottom-nav{display:none}.back-top{position:fixed;right:20px;bottom:22px;z-index:30;border:0;background:#0877C9;color:#fff;border-radius:50%;width:44px;height:44px}.page-body{padding-top:16px}.page-body .article-card h2{margin-top:0}.mobile-drawer,.drawer-mask{display:none}
@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{display:grid;grid-template-columns:1fr auto 1fr;gap:8px;min-height:62px}.desktop-nav{display:none}.menu-button{display:flex;flex-direction:column;justify-content:center;gap:5px;align-items:center;width:42px;height:42px;background:transparent;border:0;padding:8px;justify-self:start}.menu-button span{display:block;width:23px;height:2px;background:#0877C9;border-radius:2px}.header-inner>.brand{justify-self:center;min-width:0}.header-inner .site-logo{height:28px;max-width:148px}.header-inner .logo-fallback{font-size:19px}.header-inner>.register-button{justify-self:end;min-width:72px;min-height:36px;font-size:14px}.drawer-heading{height:66px;display:flex;align-items:center;justify-content:space-between;padding:10px 17px;border-bottom:1px solid #EAF7FF}.drawer-heading .site-logo{height:28px}.drawer-heading .logo-fallback{font-size:20px}.drawer-close{border:0;background:#EAF7FF;color:#0877C9;border-radius:10px;width:40px;height:40px;font-size:30px;line-height:1}.drawer-scroll{height:calc(100dvh - 66px);overflow-y:auto;padding:10px 18px 30px}.drawer-label{font-size:13px;color:#5F7082;font-weight:700;margin:20px 8px 5px}.drawer-scroll a{display:flex;align-items:center;padding:7px 10px;min-height:44px;border-bottom:1px solid #EDF5FA;color:#223044}.bottom-nav{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;inset:auto 0 0;z-index:1000;background:#fff;box-shadow:0 -3px 16px rgba(8,42,70,.12);padding-bottom:env(safe-area-inset-bottom)}.bottom-nav a{text-align:center;display:grid;place-items:center;min-height:58px;font-weight:700}.bottom-nav a:last-child{color:#0877C9}.site-footer{margin-bottom:calc(58px + env(safe-area-inset-bottom))}.back-top{bottom:calc(78px + env(safe-area-inset-bottom))}.brand-grid,.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media(max-width:640px){.shell{width:calc(100% - 28px)}.page-hero{padding-top:28px}.hero-centered{padding-top:30px}.page-hero h1,.hero-copy h1{font-size:30px}.section{padding:24px 0}.grid-2,.grid-3,.brand-grid{grid-template-columns:1fr}.poster-row{grid-template-columns:1fr;gap:12px}.poster-row .media{height:170px;aspect-ratio:auto}.media{height:160px;aspect-ratio:auto}.card,.article-card,.brand-card{padding:19px}.section-title{font-size:24px}.footer-grid{grid-template-columns:1fr 1fr;gap:22px}.footer-bottom{flex-direction:column}.lead{font-size:16px}.numbered .card{gap:12px}}
@media(max-width:380px){.header-inner .logo-fallback{font-size:18px}.header-inner .site-logo{max-width:130px}.header-inner>.register-button{min-width:72px}.footer-grid{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.mobile-drawer{transition:none}}