:root{--bg:#111318;--nav:#151820;--panel:#1A1E27;--panel2:#222733;--primary:#F45132;--primaryHover:#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}img,svg,video,canvas{max-width:100%}a{color:inherit;text-decoration:none;touch-action:manipulation;min-height:40px}button{font:inherit}.desktop-header{position:sticky;top:0;z-index:9000;background:var(--nav);border-bottom:1px solid var(--border)}.top-inner{width:min(1200px,calc(100% - 32px));height:68px;margin:auto;display:flex;align-items:center;gap:24px}.brand{display:flex;align-items:center;gap:10px;min-width:170px}.brand-logo,.placeholder-logo{width:42px;height:42px;border-radius:10px;object-fit:contain;background:#101219;border:1px solid var(--border)}.brand-text{display:flex;flex-direction:column;line-height:1.15;color:var(--text)}.brand-text strong{font-size:18px}.brand-text small{margin-top:4px;font-size:10px;letter-spacing:.12em;color:var(--muted)}.main-nav{display:flex;align-items:stretch;gap:4px;flex:1;justify-content:center;height:100%}.main-nav a{position:relative;display:flex;align-items:center;padding:0 11px;color:var(--muted);font-weight:650;white-space:nowrap}.main-nav a:hover,.main-nav a.active{color:var(--text)}.main-nav a.active:after{content:"";position:absolute;left:12px;right:12px;bottom:0;height:3px;background:var(--primary);border-radius:2px 2px 0 0}.register-btn{display:inline-flex;align-items:center;justify-content:center;height:42px;min-width:84px;padding:0 20px;border-radius:999px;background:var(--primary);color:white;font-weight:750}.register-btn:hover{background:var(--primaryHover)}.channel-bar{background:#12151b;border-top:1px solid rgba(255,255,255,.04)}.channel-inner{width:min(1200px,calc(100% - 32px));margin:auto;display:flex;gap:22px;align-items:center;min-height:38px;color:var(--muted);font-size:14px}.channel-inner a{display:flex;align-items:center}.channel-inner a:hover{color:var(--text)}.mobile-topbar{display:none}.mobile-drawer,.drawer-mask{display:none}.site-main{width:min(1200px,calc(100% - 32px));margin:0 auto;padding:34px 0 72px}.hero{padding:28px;border:1px solid var(--border);border-radius:16px;background:linear-gradient(145deg,#1A1E27,#151820)}.hero h1{margin:0 0 12px;color:var(--text);font-size:clamp(32px,4vw,42px);line-height:1.18}.hero p{margin:0;color:var(--muted);max-width:860px}.eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:10px;color:var(--gold);font-size:13px;font-weight:750;letter-spacing:.05em}.eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--gold)}.section{margin-top:28px;padding:26px;border:1px solid var(--border);border-radius:16px;background:var(--panel)}.section h2{margin:0 0 14px;color:var(--text);font-size:24px;line-height:1.35}.section h3{margin:18px 0 8px;color:var(--text);font-size:19px}.section p{margin:8px 0}.section ul{padding-left:20px}.section li{margin:8px 0}.lead{font-size:17px;color:#e4e7ec}.link-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}.text-link{display:inline-flex;align-items:center;padding:8px 12px;border:1px solid var(--border);border-radius:999px;color:var(--text);background:#151820}.text-link:hover{border-color:rgba(244,81,50,.55);color:#fff}.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.card{padding:20px;border:1px solid var(--border);border-radius:14px;background:var(--panel2);min-width:0}.card h3{margin-top:0}.card a.more{display:inline-flex;color:#fff;border-bottom:1px solid var(--primary);min-height:40px;align-items:center}.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:10px;background:#12151c;aspect-ratio:16/9;border:1px solid var(--border)}.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;display:flex;align-items:center;justify-content:center;background:linear-gradient(145deg,#141821,#1c2230)}.media-placeholder:after{content:"";width:44%;height:2px;background:rgba(255,255,255,.08);box-shadow:0 -28px 0 rgba(255,255,255,.04),0 28px 0 rgba(255,255,255,.04)}.image-note{margin-top:10px;color:var(--muted);font-size:14px}.split{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(280px,.75fr);gap:22px;align-items:center}.list-clean{list-style:none;padding:0!important;margin:0}.list-clean li{padding:12px 0;border-bottom:1px solid var(--border)}.list-clean li:last-child{border-bottom:0}.qa{display:grid;gap:14px}.qa article{padding:18px;border:1px solid var(--border);border-radius:12px;background:#171b24}.qa h3{margin:0 0 8px}.qa p{margin:0}.carousel{position:relative;margin-bottom:28px}.carousel-viewport{position:relative;overflow:hidden;border-radius:14px;border:1px solid var(--border);background:#0d1015;height:260px}.carousel-slide{display:none;position:absolute;inset:0}.carousel-slide.active{display:block}.carousel-slide .media{height:100%;aspect-ratio:auto;border:0;border-radius:0}.carousel-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:5;width:42px;height:42px;border:1px solid var(--border);border-radius:50%;background:rgba(17,19,24,.8);color:#fff;cursor:pointer}.carousel-arrow.prev{left:14px}.carousel-arrow.next{right:14px}.carousel-dots{display:flex;gap:8px;justify-content:center;margin-top:12px}.carousel-dot{width:12px;height:12px;min-height:12px;border-radius:50%;border:0;background:#4d5360;cursor:pointer;padding:0}.carousel-dot.active{background:var(--primary)}.site-footer{background:#0d0f13;border-top:1px solid var(--border);color:var(--muted)}.footer-inner{width:min(1200px,calc(100% - 32px));margin:auto;padding:34px 0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}.footer-inner h2{font-size:16px;color:var(--text);margin:0 0 12px}.footer-inner a{display:flex;align-items:center;width:max-content;max-width:100%;font-size:14px}.footer-inner a:hover{color:var(--text)}.footer-note{border-top:1px solid var(--border);padding:18px 16px 90px;text-align:center;font-size:13px;line-height:1.8}.mobile-bottom{display:none}.back-top{position:fixed;right:18px;bottom:24px;width:44px;height:44px;border-radius:50%;border:1px solid var(--border);background:var(--panel2);color:#fff;opacity:0;pointer-events:none;transition:.2s;z-index:8000}.back-top.show{opacity:1;pointer-events:auto}.notice{padding:14px 16px;border-left:3px solid var(--primary);background:#161a22;border-radius:0 10px 10px 0}.tag{display:inline-flex;align-items:center;min-height:30px;padding:4px 10px;border-radius:999px;background:#141820;border:1px solid var(--border);font-size:13px;color:var(--muted)}
@media(max-width:1080px){.main-nav a{padding:0 8px}.top-inner{gap:14px}.brand{min-width:150px}.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:980px){.desktop-header{display:none}.mobile-topbar{position:sticky;top:0;z-index:10000;display:grid;grid-template-columns:minmax(72px,1fr) auto minmax(82px,1fr);align-items:center;gap:8px;height:62px;padding:0 14px;background:var(--nav);border-bottom:1px solid var(--border)}.menu-toggle{justify-self:start;min-height:40px;padding:0 13px;border:1px solid var(--border);border-radius:999px;background:#10131a;color:#fff}.mobile-brand{display:flex;align-items:center;justify-content:center;gap:8px;font-weight:800;color:#fff;white-space:nowrap}.mobile-brand img,.mobile-logo-placeholder{width:32px;height:32px;border-radius:8px;object-fit:contain;background:#101219;border:1px solid var(--border)}.mobile-register{justify-self:end;min-width:72px;height:40px;padding:0 14px}.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{overflow-y:auto}.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}.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px;border-bottom:1px solid var(--border)}.drawer-brand{display:flex;align-items:center;gap:9px;font-weight:800}.drawer-brand img,.drawer-logo-placeholder{width:34px;height:34px;object-fit:contain;border-radius:8px;background:#101219;border:1px solid var(--border)}.drawer-close{min-height:40px;border:1px solid var(--border);border-radius:999px;background:#10131a;color:#fff;padding:0 12px}.drawer-group{padding:14px 16px;border-bottom:1px solid var(--border)}.drawer-group strong{display:block;color:var(--gold);font-size:13px;margin-bottom:7px}.drawer-group a{display:flex;align-items:center;min-height:44px;color:var(--body)}body.drawer-open{overflow:hidden}.site-main{padding-top:24px;padding-bottom:110px}.cards{grid-template-columns:1fr}.split{grid-template-columns:1fr}.footer-note{padding-bottom:86px}.mobile-bottom{position:fixed;left:0;right:0;bottom:0;z-index:9500;display:grid;grid-template-columns:repeat(4,1fr);min-height:62px;padding-bottom:env(safe-area-inset-bottom);background:#101218;border-top:1px solid var(--border)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;font-size:14px;color:var(--muted)}.mobile-bottom .register-link{color:var(--primary);font-weight:800}.back-top{bottom:78px}}
@media(max-width:640px){.site-main{width:min(100% - 24px,1200px)}.hero,.section{padding:20px;border-radius:14px}.hero h1{font-size:30px}.section h2{font-size:22px}.grid-2,.grid-4{grid-template-columns:1fr}.carousel-viewport{height:170px}.carousel-arrow{width:38px;height:38px}.carousel-arrow.prev{left:8px}.carousel-arrow.next{right:8px}.footer-inner{grid-template-columns:1fr;gap:16px}.footer-inner>div{padding-bottom:8px;border-bottom:1px solid var(--border)}.footer-inner>div:last-child{border-bottom:0}.media-4x5{max-height:260px}.mobile-topbar{grid-template-columns:minmax(66px,1fr) auto minmax(72px,1fr);padding:0 10px}.menu-toggle{padding:0 10px}.mobile-brand span{font-size:15px}.mobile-register{min-width:68px;padding:0 12px}.link-row{gap:8px}.text-link{padding:7px 10px}}