/* ===== 前台 · 海报 Billboard（1/2）：首页巨字 / 跑马条 / Banner / 索引行 / 作品 / 活动 ===== */
/* 首页巨字 */
.mega{padding:40px 0 0;border-bottom:1px solid var(--hair)}
.mega .meta{display:flex;justify-content:space-between;gap:16px;color:var(--fg-3);margin-bottom:14px}
.mega h1{font:400 clamp(84px,17.4vw,250px)/.84 var(--f-disp);text-transform:uppercase;letter-spacing:-.01em}
.mega h1 span{display:block}
.mega h1 .r{text-align:right}
.mega-row{display:grid;grid-template-columns:1fr 1fr 1fr;border-top:1px solid var(--hair);margin:40px calc(var(--gut)*-1) 0}
.mega-row>div{padding:30px var(--gut);border-right:1px solid var(--hair);min-width:0}
.mega-row>div:last-child{border-right:0;display:flex;align-items:center;justify-content:flex-end;gap:12px;flex-wrap:wrap}
.mega-row .zh{font:900 30px/1.2 var(--f-body);letter-spacing:-.02em}
.mega-row p{font-size:16px;color:#DDD}
@media (max-width:1000px){.mega-row{grid-template-columns:1fr}.mega-row>div{border-right:0;border-bottom:1px solid var(--hair)}.mega-row>div:last-child{justify-content:flex-start}}
/* 兼容旧 intro / stamp */
.intro{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center;padding:72px 0 56px}
.intro h1{font:900 clamp(40px,6vw,84px)/1 var(--f-body);letter-spacing:-.03em;margin:14px 0 20px}
.intro h1 em{font-style:normal;color:var(--pink)}
.intro .lead{font-size:18px;color:var(--fg-2);max-width:520px}
.intro .row{margin-top:28px}
.stamp{display:inline-block;font:500 12px/1.3 var(--f-mono);letter-spacing:2px;text-transform:uppercase;color:var(--pink)}
/* 视频位 */
.video{position:relative;aspect-ratio:16/9;border-bottom:1px solid var(--hair);overflow:hidden;background:#000;color:var(--fg)}
.video video,.video iframe{width:100%;height:100%;object-fit:cover;display:block;border:0}
.video .ph-v{position:absolute;inset:0;display:grid;place-items:center;text-align:center;padding:24px}
.video .disc{position:absolute;width:120%;aspect-ratio:1;left:-10%;top:30%;border-radius:50%;background:repeating-radial-gradient(circle,#18181c 0 2px,#0b0b0d 2px 7px);animation:spin 24s linear infinite;opacity:.9}
.video .play-b{position:relative;width:96px;height:96px;border-radius:50%;background:var(--pink);color:#fff;display:grid;place-items:center;font-size:26px;margin:0 auto 18px;transition:transform .2s var(--ease)}
.video .play-b:hover{transform:scale(1.06)}
.video .cap{position:relative;font:500 12px/1.4 var(--f-mono);letter-spacing:2px;text-transform:uppercase;color:var(--fg-2)}
/* 跑马条 */
.marq{border-bottom:1px solid var(--hair);background:var(--bg-2);overflow:hidden;white-space:nowrap}
.marq div{display:inline-flex;align-items:center;padding:24px 0;font:400 30px/1 var(--f-disp);text-transform:uppercase;animation:mq 40s linear infinite}
.marq span{display:inline-flex;align-items:center;margin-right:56px;color:var(--fg-2)}
.marq span:nth-child(2n){color:#fff}
.marq .smile-sep{color:var(--pink)}
@keyframes mq{to{transform:translateX(-50%)}}
/* 区块标题 */
.block{padding:96px 0 0}
.bh{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.bh h2{font:900 clamp(36px,4.6vw,64px)/1 var(--f-body);letter-spacing:-.03em;margin-top:10px}
.bh p{color:var(--fg-2);max-width:540px;margin-top:12px}
.seg{display:inline-flex;gap:6px;flex-wrap:wrap}
.seg button,.seg a{padding:0 18px;min-height:40px;border-radius:var(--pill);border:1px solid var(--hair-2);font:500 12px/1 var(--f-mono);letter-spacing:1.5px;text-transform:uppercase;color:var(--fg-2);display:inline-flex;align-items:center;text-decoration:none;transition:.2s}
.seg button:hover,.seg a:hover{border-color:#fff;color:#fff}
.seg button.on,.seg a.on{background:#fff;border-color:#fff;color:#000}
/* Banner 轮播 */
.bnr{position:relative;margin-top:0;border-bottom:1px solid var(--hair)}
.bnr-vp{overflow:hidden}
.bnr-track{display:flex;transition:transform .6s var(--ease)}
.bnr-s{flex:0 0 100%;min-height:340px;padding:64px var(--gut);display:flex;flex-direction:column;justify-content:center;gap:14px;position:relative;overflow:hidden;background:var(--bg-2)}
.bnr-s h3{font:900 clamp(32px,4.4vw,60px)/1.05 var(--f-body);letter-spacing:-.03em;max-width:820px;position:relative}
.bnr-s p{max-width:560px;color:var(--fg-2);position:relative}
.bnr-s .btn{align-self:flex-start;margin-top:12px;position:relative}
.bnr-s .eyebrow{position:relative}
.bnr-s.hot{background:var(--pink)}.bnr-s.hot .eyebrow,.bnr-s.hot p{color:#fff}.bnr-s.hot .btn{background:#fff;border-color:#fff;color:#000}
.bnr-s.lime{background:var(--bg-2)}
.bnr-s.lime::before{content:"";position:absolute;inset:0;background:var(--grad);opacity:.14}
.bnr-s.ink{background:#000}
.bnr-s .deco{position:absolute;right:4%;top:50%;width:min(360px,34vw);height:auto;color:#fff;opacity:.07;transform:translateY(-50%) rotate(-10deg)}
.bnr-s.ink .deco,.bnr-s.lime .deco{color:var(--pink);opacity:.22}
.bnr-dots{position:absolute;right:var(--gut);bottom:28px;display:flex;gap:6px}
.bnr-dots button{width:28px;height:3px;background:rgba(255,255,255,.3);transition:width .3s,background .3s}
.bnr-dots button.on{width:56px;background:#fff}
/* 编号索引行 */
.idx{border-top:1px solid var(--hair)}
.idx .head{display:flex;justify-content:space-between;padding:22px 0;border-bottom:1px solid var(--hair);color:var(--fg-3)}
.it{display:grid;grid-template-columns:120px minmax(0,1.2fr) minmax(0,1fr) 72px;gap:20px;align-items:center;padding:30px 0;border-bottom:1px solid var(--hair);text-decoration:none;transition:background .25s,padding .25s}
.it:hover{background:var(--bg-2);padding-left:16px;padding-right:16px}
.it .no{font:400 56px/1 var(--f-disp);color:var(--fg-3);transition:color .2s}
.it:hover .no{color:var(--pink)}
.it h3{font:900 clamp(26px,3vw,40px)/1.05 var(--f-body);letter-spacing:-.02em}
.it h3 small{font:400 20px/1 var(--f-disp);color:var(--fg-3);margin-left:14px;letter-spacing:1px;text-transform:uppercase}
.it p{color:var(--fg-2);font-size:15px}
.it .go{justify-self:end;width:56px;height:56px;border-radius:50%;border:1px solid var(--hair-2);display:grid;place-items:center;font-size:20px;transition:.2s}
.it:hover .go{background:var(--pink);border-color:var(--pink)}
@media (max-width:900px){.it{grid-template-columns:64px 1fr 48px}.it p{grid-column:2/3}.it .no{font-size:36px}.it .go{width:44px;height:44px;grid-row:1/3;grid-column:3}}
/* 作品卡 */
.wk{text-decoration:none;display:block;min-width:0}
.wk .cv{aspect-ratio:1;overflow:hidden;background:var(--bg-4);position:relative}
.wk .cv svg,.wk .cv img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.wk:hover .cv svg,.wk:hover .cv img{transform:scale(1.04)}
.wk h4{font:700 17px/1.3 var(--f-body);margin-top:14px}
.wk .m{display:flex;justify-content:space-between;gap:8px;font:500 11px/1.6 var(--f-mono);letter-spacing:1px;color:var(--fg-3);margin-top:4px}
.feat{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:20px}
.feat .wk:first-child{grid-row:span 2}
.feat .wk:first-child .cv{aspect-ratio:auto;height:calc(100% - 62px)}
.reel{display:flex;gap:20px;overflow-x:auto;padding-bottom:10px;scroll-snap-type:x mandatory}
.reel>.wk{flex:0 0 300px;scroll-snap-align:start}
@media (max-width:900px){.feat{grid-template-columns:1fr 1fr}.feat .wk:first-child{grid-column:span 2;grid-row:auto}.feat .wk:first-child .cv{aspect-ratio:16/10;height:auto}.reel>.wk{flex-basis:220px}}
/* 活动卡 */
.ev{border:1px solid var(--hair);padding:28px;display:flex;flex-direction:column;gap:12px;min-height:250px;background:var(--bg-2);transition:border-color .2s}
.ev:hover{border-color:var(--hair-2)}
.ev.hot{border-top:2px solid var(--pink)}
.ev.lime{position:relative}
.ev.lime::before{content:"";position:absolute;left:-1px;right:-1px;top:-1px;height:2px;background:var(--grad)}
.ev.ink{background:#000}
.ev h3{font:900 22px/1.25 var(--f-body);letter-spacing:-.01em}
.ev .meta{font-size:13px;color:var(--fg-2)}
.ev .ft{margin-top:auto;display:flex;justify-content:space-between;align-items:center;gap:8px;padding-top:16px;border-top:1px solid var(--hair)}