*{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}img,svg{max-width:100%}a{color:#0877C9;text-decoration:none;touch-action:manipulation}a:hover{text-decoration:underline}a:focus-visible,button:focus-visible{outline:3px solid #0877C9;outline-offset:3px}button{font:inherit;cursor:pointer}.container{width:min(100% - 36px,1160px);margin-inline:auto}.skip-link{position:absolute;z-index:20000;top:-80px;left:16px;background:#fff;padding:8px 14px}.skip-link:focus{top:8px}.site-header{background:#fff;border-bottom:1px solid #dcecf5;position:relative;z-index:100}.header-inner{height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px;white-space:nowrap}.site-logo{display:flex;align-items:center;flex:0 0 182px;font-size:23px;font-weight:800;color:#0877C9;overflow:hidden}.site-logo img{height:36px;width:auto;max-width:170px;object-fit:contain}.desktop-nav{display:flex;gap:clamp(12px,2.1vw,30px);align-items:center;justify-content:center;min-width:0}.desktop-nav a{display:inline-flex;align-items:center;height:76px;border-bottom:2px solid transparent;color:#223044;font-weight:600;white-space:nowrap}.desktop-nav a.active{color:#0877C9;border-bottom-color:#1CA8F6}.register-link{background:linear-gradient(135deg,#38C7FF 0%,#1CA8F6 48%,#0877C9 100%);color:#fff!important;border-radius:100px;display:inline-flex;align-items:center;justify-content:center;height:42px;min-width:94px;font-weight:700;flex-shrink:0}.register-link:hover{text-decoration:none;filter:brightness(.96)}.menu-toggle{display:none}.mobile-drawer,.drawer-mask{display:none}body.drawer-open{overflow:hidden}main{min-height:60vh}.page-heading{padding:42px 0 14px}.eyebrow{color:#0877C9;font-size:14px;font-weight:700;letter-spacing:.08em;margin:0 0 8px}.page-heading h1,.hero-title{font-size:clamp(27px,3.3vw,38px);line-height:1.3;margin:0 0 16px;color:#0877C9}.lede{font-size:17px;color:#5F7082;max-width:850px}.channel-strip{background:#EAF7FF;padding:13px 0;margin:14px 0 26px}.channel-inner{display:flex;gap:20px;flex-wrap:wrap}.channel-inner a{white-space:nowrap;font-weight:600}.content-wrap{padding-bottom:55px}.reading-section,.article-card,.brand-card,.feature-card,.question-card{background:#fff;border:1px solid #e0edf5;border-radius:18px;box-shadow:0 8px 25px rgba(8,74,116,.045)}.reading-section{padding:24px 28px;margin:18px 0}.reading-section h2,.section-heading{font-size:23px;color:#0877C9;line-height:1.4;margin:0 0 14px}.reading-section p,.article-card p,.brand-card p{margin:10px 0;color:#223044}.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{border:1px solid #d8eaf5;background:linear-gradient(135deg,#EAF7FF,#dceffc)}.content-media{height:clamp(200px,22vw,250px);aspect-ratio:auto;margin:16px 0 22px}.home-poster{height:clamp(220px,25vw,280px);aspect-ratio:auto}.poster-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin:22px 0}.poster-row .media{width:100%}.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin:18px 0 26px}.feature-card{padding:23px}.feature-card h2{color:#0877C9;font-size:22px;margin:0 0 9px}.feature-card p{margin:0 0 13px}.brand-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:18px 0 24px}.brand-card{padding:20px;min-width:0}.brand-card h2{margin:0 0 10px;font-size:20px;color:#0877C9}.brand-card .media{margin-bottom:13px;height:205px;aspect-ratio:auto}.article-card{padding:23px;margin-bottom:17px}.article-card h2{font-size:21px;color:#0877C9;margin:0 0 12px}.question-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px;margin:20px 0}.question-card{padding:21px}.question-card h2{font-size:18px;color:#0877C9;margin:0 0 8px}.question-card p{margin:0}.site-footer{background:#082A46;color:#EAF8FF;padding:42px 0 24px}.footer-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px}.footer-grid h2{font-size:18px;margin:0 0 12px;color:#fff}.footer-grid a{display:block;color:#EAF8FF;min-height:40px}.footer-bottom{border-top:1px solid rgba(234,248,255,.22);margin-top:26px;padding-top:18px;font-size:14px}.footer-bottom p{margin:5px 0}.footer-brand img{height:36px;width:auto;object-fit:contain}.mobile-bottom{display:none}.drawer-heading{height:68px;display:flex;justify-content:space-between;align-items:center;padding:0 18px;border-bottom:1px solid #dcecf5}.drawer-logo{font-weight:800;font-size:20px}.drawer-logo img{height:28px;width:auto;object-fit:contain}.drawer-close{border:0;background:#EAF7FF;color:#0877C9;border-radius:8px;width:40px;height:40px;font-size:26px}.drawer-content{overflow:auto;max-height:calc(100dvh - 69px);padding:12px 20px 30px}.drawer-content h2{font-size:15px;color:#5F7082;margin:14px 0 5px}.drawer-content a{display:block;padding:8px 10px;min-height:40px;color:#223044;border-radius:8px}.drawer-content a:hover{background:#EAF7FF}@media(max-width:980px){.desktop-nav{display:none}.header-inner{height:62px;display:grid;grid-template-columns:72px minmax(0,1fr) 72px;gap:8px;align-items:center}.menu-toggle{display:flex;grid-column:1;grid-row:1;flex-direction:column;justify-content:center;align-items:center;gap:4px;width:42px;height:42px;border:0;border-radius:8px;background:#EAF7FF}.menu-toggle span{width:19px;height:2px;background:#0877C9;border-radius:2px}.site-logo{grid-column:2;grid-row:1;flex:initial;min-width:0;justify-content:center;font-size:19px}.site-logo img{height:28px;max-width:100%;object-fit:contain}.header-register{grid-column:3;grid-row:1;min-width:72px;height:36px;font-size:14px}.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}.mobile-bottom{position:fixed;bottom:0;left:0;right:0;z-index:900;display:grid;grid-template-columns:repeat(4,1fr);padding-bottom:env(safe-area-inset-bottom);background:#fff;border-top:1px solid #d7e9f5;box-shadow:0 -4px 16px rgba(0,0,0,.04)}.mobile-bottom a{text-align:center;display:flex;align-items:center;justify-content:center;min-height:56px;font-weight:700}.mobile-bottom a:last-child{color:#0877C9}.site-footer{padding-bottom:calc(85px + env(safe-area-inset-bottom))}}@media(max-width:640px){.container{width:min(100% - 28px,1160px)}.page-heading{padding-top:28px}.page-heading h1,.hero-title{font-size:29px}.reading-section{padding:20px 18px}.reading-section h2,.section-heading{font-size:21px}.card-grid,.brand-grid,.question-list,.footer-grid{grid-template-columns:1fr}.poster-row{gap:10px;grid-template-columns:1fr}.home-poster{height:165px}.content-media,.brand-card .media{height:155px}.footer-grid{gap:12px}.channel-inner{gap:10px 16px}.lede{font-size:16px}}@media(min-width:641px) and (max-width:980px){.poster-row{grid-template-columns:repeat(3,minmax(0,1fr))}.home-poster{height:190px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.mobile-drawer{transition:none}}