:root{--bg:#111318;--nav:#151820;--panel:#1A1E27;--panel2:#222733;--primary:#F45132;--primary-hover:#FF684E;--gold:#D7A84B;--text:#F7F8FA;--body:#D5D8DF;--muted:#AEB4C0;--border:rgba(255,255,255,.09)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--body);font-family:system-ui,"PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75;overflow-x:hidden}body.drawer-open{overflow:hidden}a{color:inherit;text-decoration:none;touch-action:manipulation}img{max-width:100%;height:auto}.shell{width:min(1200px,calc(100% - 32px));margin:0 auto}.site-header{position:sticky;top:0;z-index:10000;background:rgba(21,24,32,.98);border-bottom:1px solid var(--border)}.desktop-header{height:72px;display:flex;align-items:center;gap:18px}.brand-lockup{display:inline-flex;align-items:center;gap:10px;min-width:max-content}.site-logo,.logo-fallback{width:42px;height:42px;border-radius:50%;object-fit:contain;background:#0e1117;display:inline-grid;place-items:center;color:var(--primary);font-weight:900;border:1px solid var(--border)}.brand-text{display:flex;flex-direction:column;line-height:1.05}.brand-text strong{color:var(--text);font-size:18px}.brand-text small{margin-top:6px;color:var(--muted);font-size:10px;letter-spacing:.17em}.main-nav{display:flex;align-items:stretch;justify-content:center;gap:0;flex:1;height:100%;min-width:0}.main-nav a{position:relative;display:flex;align-items:center;padding:0 11px;color:var(--muted);font-weight:700;white-space:nowrap;font-size:14px}.main-nav a:hover{color:var(--text)}.main-nav a.active{color:#fff}.main-nav a.active:after{content:"";position:absolute;left:11px;right:11px;bottom:0;height:2px;background:var(--primary)}.register-btn{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:0 21px;border-radius:999px;background:var(--primary);color:#fff;font-weight:800;white-space:nowrap}.register-btn:hover{background:var(--primary-hover)}.channel-strip{background:#0c0f14;border-bottom:1px solid var(--border)}.channel-links{min-height:40px;display:flex;align-items:center;justify-content:flex-end;gap:24px}.channel-links a{display:inline-flex;align-items:center;min-height:40px;font-size:13px;color:var(--muted)}.channel-links a:hover{color:#fff}.mobile-header{display:none}.site-main{padding-bottom:28px}.hero{padding:24px 0 6px}.hero-frame{position:relative;overflow:hidden;border-radius:18px;border:1px solid var(--border);background:#0b0e13}.hero-slide{display:none}.hero-slide.is-active{display:block}.hero-slide .media{border-radius:0;aspect-ratio:auto;height:260px}.hero-controls{display:flex;align-items:center;justify-content:center;gap:14px;padding:10px;background:#0d1016;border-top:1px solid var(--border)}.hero-prev,.hero-next,.hero-dot,.menu-toggle,.drawer-close,.back-top{border:0;cursor:pointer}.hero-prev,.hero-next{width:38px;height:38px;border-radius:10px;background:var(--panel2);color:var(--text);font-size:18px}.hero-dots{display:flex;gap:8px}.hero-dot{width:9px;height:9px;border-radius:99px;background:#49505d;padding:0}.hero-dot.is-active{width:24px;background:var(--primary)}.section{padding:30px 0}.section-head{display:flex;justify-content:space-between;gap:18px;align-items:end;margin-bottom:18px}.section h1,.section h2,.section h3{color:var(--text);line-height:1.25;margin-top:0}.section h1,.article-wrap h1{font-size:clamp(32px,4vw,42px);margin:0 0 14px;color:var(--text);line-height:1.22}.section h2,.article-wrap h2{font-size:26px;margin:0 0 10px;color:var(--text);line-height:1.3}.section h3,.article-wrap h3{font-size:19px;margin:0 0 8px;color:var(--text);line-height:1.35}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--gold);font-size:12px;font-weight:850;letter-spacing:.08em}.eyebrow:before{content:"";width:22px;height:2px;background:var(--primary)}.lead{font-size:18px;color:var(--body);max-width:900px}.muted{color:var(--muted)}.panel{background:linear-gradient(180deg,#1c2029,#181c24);border:1px solid var(--border);border-radius:16px;padding:22px}.panel p:last-child{margin-bottom:0}.grid-2,.grid-3,.grid-4{display:grid;gap:18px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.card{background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:18px;min-width:0;box-shadow:0 14px 30px rgba(0,0,0,.08)}.card .media{margin-bottom:14px}.card-link{display:inline-flex;align-items:center;min-height:40px;color:#fff;font-weight:750}.card-link:hover{color:var(--primary-hover)}.text-link{color:var(--primary-hover);font-weight:750}.text-link:hover{text-decoration:underline}.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:12px;background:#12151c;aspect-ratio:16/9}.media > img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;object-position:center center;display:block}.media-4x5{aspect-ratio:4/5}.media-placeholder{position:absolute;inset:0;background:linear-gradient(135deg,#131720,#202633)}.feature-split{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(300px,.95fr);gap:24px;align-items:center}.story-band{display:grid;grid-template-columns:.75fr 1.25fr;gap:22px;align-items:stretch}.story-index{display:grid;gap:10px}.story-index a{display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:10px;background:var(--panel);border:1px solid var(--border);color:var(--muted)}.story-index a:hover{color:#fff;border-color:rgba(244,81,50,.35)}.article-wrap{padding:34px 0 42px}.article-hero{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(300px,.9fr);gap:26px;align-items:center;margin-bottom:24px}.article-copy{background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:24px}.topic-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.topic-item{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:18px}.topic-item p{margin:0}.inline-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.inline-links a{display:inline-flex;align-items:center;min-height:40px;padding:0 14px;border:1px solid var(--border);border-radius:999px;background:#151922;color:var(--body)}.inline-links a:hover{border-color:rgba(244,81,50,.55);color:#fff}.notice{border-left:3px solid var(--primary);background:#171b23;padding:16px 18px;border-radius:0 10px 10px 0}.qa{display:grid;gap:12px}.qa article{background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:18px}.qa h2,.qa h3{font-size:18px;margin:0 0 6px;color:var(--text)}.qa p{margin:0}.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 0}.tag-row span{padding:4px 10px;border-radius:999px;border:1px solid var(--border);background:#151922;color:var(--muted);font-size:13px}.site-footer{background:#0c0e13;border-top:1px solid var(--border);margin-top:30px;padding:38px 0 96px}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:30px}.footer-grid h3{font-size:15px;color:var(--text);margin:0 0 12px}.footer-grid>div>a:not(.brand-lockup){display:flex;align-items:center;min-height:40px;color:var(--muted);font-size:14px}.footer-grid a:hover{color:var(--text)}.footer-brand p{max-width:360px;color:var(--muted);font-size:14px}.footer-bottom{border-top:1px solid var(--border);margin-top:26px;padding-top:18px;display:flex;justify-content:space-between;gap:24px;color:var(--muted);font-size:13px}.footer-bottom p{margin:0}.mobile-bottom{display:none}.back-top{position:fixed;right:22px;bottom:24px;width:44px;height:44px;border-radius:50%;background:var(--panel2);color:var(--text);opacity:0;pointer-events:none;transform:translateY(8px);transition:.2s;z-index:9000}.back-top.show{opacity:1;pointer-events:auto;transform:none}.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:#151820;color:#F7F8FA;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(0,0,0,.45);z-index:11000;opacity:0;pointer-events:none}
.drawer-mask.is-visible{display:block;opacity:1;pointer-events:auto}
.desktop-header,.channel-strip{display:none}.mobile-header{height:62px;display:grid;grid-template-columns:84px minmax(0,1fr) 84px;align-items:center;padding:0 12px;gap:8px}.menu-toggle{width:44px;height:44px;border-radius:10px;background:transparent;padding:10px;display:flex;flex-direction:column;justify-content:center;gap:5px}.menu-toggle span{display:block;height:2px;background:var(--text);border-radius:3px}.mobile-brand{display:flex;align-items:center;justify-content:center;gap:8px;min-width:0;color:var(--text)}.mobile-brand .site-logo,.mobile-brand .logo-fallback{width:34px;height:34px;flex:0 0 auto}.mobile-brand strong{font-size:16px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.mobile-register{justify-self:end;min-height:40px;padding:0 16px}.drawer-head{height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;border-bottom:1px solid var(--border)}.drawer-brand{display:flex;align-items:center;gap:10px;font-weight:800}.drawer-brand .site-logo,.drawer-brand .logo-fallback{width:36px;height:36px}.drawer-close{width:42px;height:42px;border-radius:10px;background:var(--panel2);color:var(--text);font-size:28px;line-height:1}.drawer-group{padding:16px;border-bottom:1px solid var(--border)}.drawer-group strong{display:block;color:var(--gold);font-size:12px;margin-bottom:8px}.drawer-group a{display:flex;align-items:center;min-height:44px;color:var(--body);border-radius:8px;padding:0 8px}.drawer-group a:hover{background:var(--panel2);color:#fff}.hero-slide .media{height:160px}.grid-4,.grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}.feature-split,.article-hero,.story-band{grid-template-columns:1fr}.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:10000;height:62px;display:grid;grid-template-columns:repeat(4,1fr);background:#10131a;border-top:1px solid var(--border);padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-height:40px;color:var(--muted);font-size:13px}.mobile-bottom .bottom-register{color:var(--primary);font-weight:800}.site-main{padding-bottom:72px}.site-footer{padding-bottom:92px}.back-top{bottom:78px}.media-4x5{max-height:260px}.section h1,.article-wrap h1{font-size:32px}
}
@media(max-width:720px){.shell{width:min(100% - 24px,1200px)}.section{padding:22px 0}.section h2,.article-wrap h2{font-size:22px}.lead{font-size:17px}.grid-3,.grid-2,.grid-4,.topic-list{grid-template-columns:1fr}.panel,.card,.article-copy,.topic-item{padding:16px}.footer-grid{grid-template-columns:1fr}.footer-bottom{flex-direction:column;gap:8px}.hero{padding-top:14px}.hero-controls{padding:8px}.hero-prev,.hero-next{width:36px;height:36px}}
@media(max-width:390px){.mobile-header{grid-template-columns:72px minmax(0,1fr) 72px;padding:0 8px;gap:4px}.mobile-register{padding:0 13px}.mobile-brand strong{font-size:15px}.mobile-brand{gap:6px}.mobile-brand .site-logo,.mobile-brand .logo-fallback{width:32px;height:32px}.menu-toggle{width:40px}}