:root{--bg:#111318;--nav:#151820;--panel:#1a1e27;--panel2:#222733;--primary:#f45132;--hover:#ff684e;--gold:#d7a84b;--text:#f7f8fa;--body:#d5d8df;--muted:#aeb4c0;--line:rgba(255,255,255,.09);--shell:1200px}
*{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;min-height:40px}img{max-width:100%}button{font:inherit}.shell{width:min(calc(100% - 40px),var(--shell));margin:auto}.site-header{position:sticky;top:0;z-index:9000;background:rgba(21,24,32,.97);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
.desktop-bar{height:72px;display:grid;grid-template-columns:225px minmax(0,1fr) 96px;gap:18px;align-items:center}.brand,.drawer-brand,.footer-brand{display:flex;align-items:center;gap:11px;min-width:0}.brand-logo-box{width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:#0f1218;display:grid;place-items:center;overflow:hidden}.brand-logo,.drawer-brand img,.footer-brand img,.mobile-brand img{width:100%;height:100%;object-fit:contain}.brand-text,.drawer-brand span,.footer-brand div{display:flex;flex-direction:column;line-height:1.15}.brand-text strong,.drawer-brand strong,.footer-brand strong{color:var(--text);font-size:18px}.brand-text small,.drawer-brand small,.footer-brand small{color:var(--muted);font-size:11px;letter-spacing:.12em;margin-top:5px}.logo-fallback{width:34px;height:34px;border-radius:9px;background:var(--primary);display:grid;place-items:center;color:#fff;font-weight:900}.main-nav{display:flex;align-items:center;justify-content:center;gap:2px;min-width:0;white-space:nowrap}.main-nav a{position:relative;display:flex;align-items:center;padding:0 10px;height:72px;color:#bbc1cc;font-size:14px}.main-nav a:hover{color:#fff}.main-nav a.active{color:#fff}.main-nav a.active:after{content:"";position:absolute;left:10px;right:10px;bottom:0;height:3px;background:var(--primary)}.register-btn{height:42px;min-height:42px;border-radius:999px;background:var(--primary);color:#fff;display:inline-flex;align-items:center;justify-content:center;padding:0 22px;font-weight:750}.register-btn:hover{background:var(--hover)}
.channel-bar{border-top:1px solid var(--line);background:#12151d}.channel-inner{height:38px;display:flex;gap:24px;align-items:center;overflow:hidden}.channel-inner a{display:inline-flex;align-items:center;min-height:38px;font-size:13px;color:var(--muted)}.channel-inner a:hover{color:#fff}.mobile-bar{display:none}.site-main{min-height:70vh}.hero-slider{padding:24px 0 0}.slider-shell{position:relative}.slider{position:relative;border-radius:18px;overflow:hidden;background:#0c0f14;border:1px solid var(--line);height:260px}.slide{display:none;width:100%;height:100%}.slide.is-active{display:block}.slide .media{height:100%;aspect-ratio:auto;border-radius:0}.slider-arrow{position:absolute;z-index:3;top:50%;transform:translateY(-50%);width:42px;height:42px;min-height:42px;border:1px solid var(--line);border-radius:50%;background:rgba(12,15,20,.78);color:#fff;cursor:pointer}.slider-prev{left:14px}.slider-next{right:14px}.slider-dots{position:absolute;bottom:12px;left:50%;transform:translateX(-50%);display:flex;gap:7px;z-index:4}.slider-dot{width:9px;height:9px;min-height:9px;padding:0;border:0;border-radius:50%;background:rgba(255,255,255,.35);cursor:pointer}.slider-dot.is-active{background:var(--primary)}
.media{position:relative;width:100%;max-width:100%;overflow:hidden;border-radius:10px;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(145deg,#12151c,#1b202a)}.home-section{padding:58px 0}.home-section+.home-section{border-top:1px solid rgba(255,255,255,.04)}.intro-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:24px}.kicker,.eyebrow{color:var(--primary);font-weight:800;letter-spacing:.14em;font-size:12px;text-transform:uppercase}.home-title{font-size:clamp(32px,4vw,48px);line-height:1.14;margin:10px 0 18px;color:var(--text);max-width:880px}.lead{font-size:18px;color:#dfe2e8;max-width:860px}.note-card,.panel,.entry-card,.qa-card,.visual-card,.side-card{background:var(--panel);border:1px solid var(--line);border-radius:16px}.note-card{padding:24px}.note-card strong{display:block;color:var(--text);font-size:18px;margin-bottom:8px}.note-card p{margin:0;color:var(--muted)}.section-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:22px}.section-head h2,.panel h2,.prose h2,.side-card h2{color:var(--text);line-height:1.25}.section-head h2{font-size:28px;margin:0}.section-head p{margin:0;color:var(--muted)}.entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.entry-card{padding:24px;position:relative;overflow:hidden}.entry-card:before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--primary)}.entry-card h3{margin:0 0 10px;color:var(--text);font-size:21px}.entry-card p{margin:0 0 18px;color:#cbd0da}.entry-card a,.text-link,.link-row a,.side-card a{color:#fff;font-weight:700}.entry-card a:hover,.text-link:hover,.link-row a:hover,.side-card a:hover{color:var(--hover)}.visual-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.visual-card{padding:12px}.visual-card p{margin:12px 6px 4px;color:#c8ced8;font-size:14px}.visual-card .media{border-radius:12px}.event-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.panel{padding:26px}.panel h3{margin:0 0 10px;color:var(--text);font-size:20px}.panel p:last-child{margin-bottom:0}.spotlight{display:grid;grid-template-columns:.85fr 1.15fr;gap:24px;align-items:stretch}.spotlight .panel{display:flex;flex-direction:column;justify-content:center}.qa-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.qa-card{padding:22px}.qa-card h3{color:var(--text);font-size:18px;line-height:1.45;margin:0 0 10px}.qa-card p{margin:0}.link-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.link-row a{display:inline-flex;align-items:center;padding:8px 13px;border:1px solid var(--line);border-radius:999px;background:#151922}.page-hero{padding:68px 0 38px;background:linear-gradient(180deg,#161a22 0,#111318 100%);border-bottom:1px solid var(--line)}.page-hero h1{font-size:clamp(32px,4vw,42px);line-height:1.2;color:var(--text);margin:8px 0 14px;max-width:930px}.page-hero p:last-child{font-size:18px;color:#cbd0d8;max-width:900px;margin:0}.content-wrap{padding:46px 0 72px}.content-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:30px;align-items:start}.prose{min-width:0}.prose section{padding:0 0 28px;margin:0 0 30px;border-bottom:1px solid var(--line)}.prose section:last-child{border-bottom:0}.prose h2{font-size:24px;margin:0 0 12px}.prose p{margin:0 0 12px}.side-card{position:sticky;top:132px;padding:16px}.side-card .page-media{margin-bottom:18px}.side-card h2{font-size:18px;margin:4px 0 8px}.side-card p{font-size:14px;color:var(--muted);margin:0 0 8px}.side-card a{display:flex;align-items:center;border-top:1px solid var(--line);padding:9px 2px;font-size:14px}.topic-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.topic-list article{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:20px}.topic-list h3{color:var(--text);margin:0 0 8px}.site-footer{background:#0d0f14;border-top:1px solid var(--line);padding:42px 0 96px}.footer-intro{padding-bottom:24px}.footer-brand img{width:44px;height:44px;object-fit:contain;border-radius:10px}.footer-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;padding:26px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.footer-grid h2{font-size:16px;color:var(--text);margin:0 0 10px}.footer-grid a{display:block;min-height:34px;color:var(--muted);font-size:14px}.footer-grid a:hover{color:#fff}.footer-note{display:flex;justify-content:space-between;gap:20px;color:#89919f;font-size:13px;padding-top:18px}.footer-note p{margin:0}.mobile-bottom{display:none}.back-top{position:fixed;right:22px;bottom:24px;width:44px;height:44px;min-height:44px;border-radius:50%;border:1px solid var(--line);background:#20242d;color:#fff;z-index:7000;opacity:0;pointer-events:none;transition:.2s}.back-top.is-visible{opacity:1;pointer-events:auto}
.mobile-drawer,.drawer-mask{display:none}
@media(max-width:980px){.desktop-bar{display:none}.mobile-bar{height:62px;display:grid;grid-template-columns:72px minmax(0,1fr) 82px;align-items:center;padding:0 14px;gap:4px}.menu-btn{width:44px;height:44px;min-height:44px;border:0;background:transparent;display:flex;flex-direction:column;justify-content:center;gap:5px;padding:8px;cursor:pointer}.menu-btn span{width:22px;height:2px;background:#fff;display:block}.mobile-brand{min-width:0;justify-self:center;display:flex;align-items:center;gap:7px;color:#fff;font-weight:800;height:44px;min-height:44px;max-width:150px}.mobile-brand img{width:32px;height:32px;flex:0 0 auto}.mobile-brand strong{font-size:15px;white-space:nowrap}.mobile-register{height:40px;min-height:40px;padding:0 14px;font-size:14px;justify-self:end}.channel-bar{display:none}.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;overflow:auto;padding-bottom:30px}.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{height:68px;display:flex;align-items:center;justify-content:space-between;padding:10px 14px;border-bottom:1px solid var(--line)}.drawer-brand{height:48px;min-height:48px}.drawer-brand img{width:38px;height:38px}.drawer-close{width:42px;height:42px;min-height:42px;border:0;background:transparent;color:#fff;font-size:28px;cursor:pointer}.drawer-group{padding:14px;border-bottom:1px solid var(--line)}.drawer-group h2{font-size:12px;color:#8f98a9;letter-spacing:.12em;margin:0 0 7px}.drawer-group a{display:flex;align-items:center;min-height:44px;border-radius:8px;padding:0 10px;color:#e6e9ef}.drawer-group a:hover{background:#202530}.shell{width:min(calc(100% - 28px),var(--shell))}.slider{height:170px}.slider-arrow{width:38px;height:38px}.hero-slider{padding-top:16px}.home-section{padding:42px 0}.intro-grid,.spotlight,.content-grid{grid-template-columns:1fr}.entry-grid,.qa-grid,.event-grid{grid-template-columns:1fr}.visual-grid{grid-template-columns:repeat(2,1fr)}.section-head{align-items:start;flex-direction:column;gap:6px}.section-head h2{font-size:25px}.home-title{font-size:31px}.page-hero{padding:46px 0 30px}.page-hero h1{font-size:30px}.page-hero p:last-child{font-size:16px}.content-wrap{padding:36px 0 90px}.side-card{position:static}.side-card .page-media{max-height:260px}.side-card .media-4x5{aspect-ratio:4/5;max-height:260px}.mobile-bottom{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;left:0;right:0;bottom:0;height:62px;background:#151820;border-top:1px solid var(--line);z-index:8500;padding-bottom:env(safe-area-inset-bottom)}.mobile-bottom a{display:flex;align-items:center;justify-content:center;min-height:50px;color:#c2c7d0;font-size:13px}.mobile-bottom .bottom-register{color:#f45132;font-weight:800}.site-footer{padding-bottom:100px}.back-top{bottom:78px}.footer-note{flex-direction:column}.topic-list{grid-template-columns:1fr}}
@media(max-width:520px){.visual-grid{grid-template-columns:1fr 1fr;gap:12px}.visual-card{padding:8px}.footer-grid{grid-template-columns:1fr;gap:18px}.mobile-bar{grid-template-columns:60px minmax(0,1fr) 78px;padding:0 10px}.mobile-register{padding:0 12px}.mobile-brand{max-width:135px}.mobile-brand strong{font-size:14px}.slider{height:150px}}
@media(max-width:370px){.mobile-brand strong{display:none}.mobile-brand{max-width:60px}.mobile-register{padding:0 11px}.mobile-bar{grid-template-columns:54px 1fr 74px}}