*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:0;background:#F4FBFF;color:#223044;font:16px/1.75 Arial,"PingFang SC","Microsoft YaHei",sans-serif}body.drawer-open{overflow:hidden}a{color:#0877C9;text-decoration:none;touch-action:manipulation}a:hover{text-decoration:underline}button{font:inherit;cursor:pointer}img,svg{max-width:100%}.wrap{width:min(1160px,calc(100% - 36px));margin-inline:auto}.site-header{background:#fff;position:relative;z-index:100;box-shadow:0 2px 18px rgba(8,77,120,.07)}.header-inner{height:78px;display:flex;align-items:center;gap:24px;justify-content:space-between;min-width:0}.site-brand{display:flex;align-items:center;min-width:154px;flex:0 0 auto}.brand-logo{display:block;height:36px;width:auto;max-width:160px;object-fit:contain}.logo-text{font-weight:800;white-space:nowrap;font-size:23px;color:#0877C9}.desktop-nav{display:flex;align-items:center;justify-content:center;gap:clamp(10px,2vw,28px);min-width:0;white-space:nowrap;flex:1}.desktop-nav a{color:#223044;display:flex;align-items:center;height:76px;border-bottom:2px solid transparent;padding:0 5px;font-weight:600}.desktop-nav a.active{color:#0877C9;border-bottom-color:#1CA8F6}.register-btn{display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;min-width:88px;min-height:42px;padding:7px 20px;border-radius:999px;background:linear-gradient(135deg,#38C7FF 0%,#1CA8F6 48%,#0877C9 100%);color:#fff;font-weight:700;box-shadow:0 6px 16px rgba(28,168,246,.16)}.register-btn:hover{color:#fff;text-decoration:none;filter:brightness(.98)}.menu-toggle{display:none;border:0;background:none;padding:9px;width:42px;height:42px}.menu-toggle span{display:block;width:22px;height:2px;background:#0877C9;margin:5px auto}.channel-strip{background:#EAF7FF;border-bottom:1px solid #d7edfb}.channel-scroll{display:flex;gap:26px;align-items:center;min-height:44px;white-space:nowrap;overflow-x:auto;scrollbar-width:none}.channel-scroll span{color:#5F7082;font-size:13px}.channel-scroll a{font-size:14px;min-height:40px;display:inline-flex;align-items:center}.page{padding:38px 0 68px}.eyebrow{font-weight:700;color:#0877C9;font-size:13px;letter-spacing:.1em}.page-hero{padding:28px 0 20px}.page-hero h1,.home-intro h1{font-size:clamp(28px,3.2vw,38px);line-height:1.3;color:#0877C9;margin:10px 0 18px}.lead{font-size:17px;line-height:1.85;max-width:880px;color:#44596c}.section-title{font-size:25px;line-height:1.35;color:#0877C9;margin:0 0 14px}.copy p,.card p,.prose p{margin:0 0 15px}.copy p:last-child,.card p:last-child{margin-bottom:0}.card{background:#fff;border:1px solid #e3f1fa;border-radius:18px;padding:26px;box-shadow:0 9px 32px rgba(37,126,177,.045);min-width:0}.card h2,.card h3{color:#0877C9;line-height:1.35;margin:0 0 14px}.card h2{font-size:23px}.card h3{font-size:19px}.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.stack{display:grid;gap:22px}.section{margin-top:38px}.soft{background:#EAF7FF;border-radius:18px;padding:24px}.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-fallback{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#EAF7FF,#d9f1ff)}.fallback-mark{display:block;width:62px;height:62px;border:3px solid rgba(8,119,201,.12);border-radius:18px;transform:rotate(-12deg)}.media--poster{height:260px;aspect-ratio:auto}.media--landscape{height:225px;aspect-ratio:auto}.media--brand{height:185px;aspect-ratio:auto}.media--portrait{height:225px;aspect-ratio:auto}.poster-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.home-intro{text-align:center;padding:38px 0 18px}.home-intro .lead{margin-inline:auto}.entry-card{border-top:4px solid #a2e2ff}.entry-card a,.text-link{font-weight:700}.index-list{counter-reset:item;display:grid;gap:15px}.index-item{background:#fff;border:1px solid #e1eff8;border-radius:16px;padding:18px 22px;display:flex;gap:16px}.index-item:before{counter-increment:item;content:counter(item,decimal-leading-zero);font-weight:800;font-size:25px;color:#1CA8F6;line-height:1.35}.index-item strong{color:#0877C9}.index-item p{margin:4px 0 0}.tag-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}.tag-row a{background:#EAF7FF;border-radius:30px;padding:4px 13px}.brand-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.brand-card{display:grid;grid-template-columns:minmax(0,180px) minmax(0,1fr);gap:20px;align-items:center}.brand-card.no-image{display:block}.brand-card .media--brand{height:125px}.brand-card h2{font-size:21px}.brand-card p{font-size:15px}.question-list{display:grid;gap:16px}.qa{background:#fff;border-left:4px solid #38C7FF;border-radius:12px;padding:19px 22px}.qa h2,.qa h3{font-size:18px;color:#0877C9;margin:0 0 8px}.qa p{margin:0}.content-split{display:grid;grid-template-columns:1.2fr .8fr;gap:28px;align-items:center}.rule-note{border-left:4px solid #1CA8F6;padding:18px 22px;background:#EAF7FF;border-radius:0 14px 14px 0}.site-footer{background:#082A46;color:#EAF8FF;padding:48px 0 23px}.site-footer a{color:#EAF8FF;display:block;min-height:35px}.site-footer .logo-text{color:#EAF8FF}.footer-grid{display:grid;grid-template-columns:2fr repeat(3,1fr);gap:36px}.footer-grid h2{font-size:17px;color:#EAF8FF;margin:0 0 12px}.footer-intro p{font-size:14px;max-width:330px;color:#EAF8FF}.footer-bottom{border-top:1px solid rgba(234,248,255,.16);margin-top:32px;padding-top:18px;display:flex;justify-content:space-between;gap:18px;font-size:13px}.footer-bottom p{margin:0}.footer-grid .brand-logo{filter:brightness(0) invert(1)}.mobile-drawer,.drawer-mask{display:none}.mobile-bottom{display:none}.back-top{position:fixed;right:19px;bottom:24px;border:0;border-radius:50%;background:#0877C9;color:#fff;width:42px;height:42px;z-index:90;box-shadow:0 4px 15px #0877c944}.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 18px;border-bottom:1px solid #e2eff8}.drawer-close{background:#EAF7FF;border:0;border-radius:9px;width:42px;height:42px;color:#0877C9;font-size:29px;line-height:1}.drawer-scroll{overflow:auto;height:calc(100% - 75px);padding:12px 19px 36px}.drawer-group{display:grid;margin-bottom:20px}.drawer-group strong{color:#5F7082;font-size:13px;padding:8px 12px}.drawer-group a{display:flex;align-items:center;min-height:44px;padding:7px 12px;border-radius:9px;color:#223044}.drawer-group a:hover{background:#EAF7FF;text-decoration: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{height:62px;display:grid;grid-template-columns:minmax(72px,1fr) auto minmax(72px,1fr);gap:7px}.menu-toggle{display:block;justify-self:start}.site-brand{justify-self:center;min-width:0}.site-brand .brand-logo,.drawer-head .brand-logo{height:28px;max-width:135px}.site-brand .logo-text{font-size:20px}.desktop-nav{display:none}.top-register{justify-self:end;min-width:72px;min-height:36px;height:36px;padding:4px 12px}.page{padding-top:24px}.mobile-bottom{position:fixed;bottom:0;left:0;right:0;display:grid;grid-template-columns:repeat(4,1fr);background:#fff;box-shadow:0 -3px 20px rgba(6,65,105,.1);z-index:100;padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-height:55px;font-weight:700;font-size:14px}.mobile-bottom a:last-child{color:#0877C9}.site-footer{padding-bottom:calc(85px + env(safe-area-inset-bottom))}.back-top{bottom:calc(77px + env(safe-area-inset-bottom))}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}.poster-grid{gap:10px}.media--poster{height:170px}.media--landscape{height:170px}.media--brand{height:145px}
}
@media(max-width:640px){.wrap{width:min(100% - 28px,1160px)}.page-hero h1,.home-intro h1{font-size:29px}.lead{font-size:16px}.page-hero{padding-top:18px}.section{margin-top:28px}.section-title{font-size:22px}.grid-3,.grid-2,.brand-grid,.content-split{grid-template-columns:1fr}.poster-grid{grid-template-columns:1fr}.media--poster{height:165px}.media--landscape{height:155px}.media--brand{height:150px}.card{padding:21px}.brand-card{grid-template-columns:minmax(0,125px) minmax(0,1fr);gap:13px}.brand-card .media--brand{height:110px}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.footer-intro{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom p+p{margin-top:8px}.index-item{padding:16px}.channel-scroll{gap:17px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.mobile-drawer{transition:none}}