/* v64 直播：直播间大厅、直播间（播放器 + 聊天室）、GWDC 专区、视频直播 / 语音空间 / 观点 / 发言人列表。配合 op.css、cms.css；类名 lv- 前缀。 */
.lv-tabs{display:flex;flex-wrap:wrap;gap:6px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.lv-tabs a{display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:17px;font-size:14px;font-weight:600;color:var(--fg2);transition:background .15s,color .15s}
.lv-tabs a:hover{color:var(--fg);background:var(--bg2)}
.lv-tabs a.on{background:var(--accent-bg);color:var(--accent)}
.lv-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:24px}
.lv-head h1{font-size:30px;line-height:1.2;font-weight:700;letter-spacing:-.01em}
.lv-head p{margin-top:8px;font-size:14.5px;color:var(--fg2)}
.lv-ghost{display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 14px;border-radius:17px;border:1px solid var(--line);background:var(--bg);color:var(--fg2);font:inherit;font-size:13px;font-weight:600;cursor:pointer;white-space:nowrap}
.lv-ghost:hover{border-color:var(--accent);color:var(--accent)}
.lv-eb{display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.04em;color:var(--accent)}

/* 大厅 */
.lv-rooms{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:24px}
.lv-room{position:relative;display:flex;flex-direction:column;min-height:250px;padding:28px 28px 24px;border-radius:20px;overflow:hidden;transition:transform .2s,box-shadow .2s}
.lv-room:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(16,40,120,.14)}
.lv-room-bar{position:absolute;left:28px;right:28px;top:20px;height:3px;border-radius:2px}
.lv-room-logo{display:inline-flex;align-items:center;justify-content:center;align-self:flex-start;height:44px;min-width:44px;padding:0 12px;margin-top:14px;border-radius:10px}
.lv-room-logo img{height:26px;width:auto}
.lv-room h2{margin-top:18px;font-size:20px;font-weight:700}
.lv-room p{margin-top:8px;font-size:14px;line-height:1.7;flex:1}
.lv-room-cta{display:flex;align-items:center;justify-content:space-between;height:46px;margin-top:22px;padding:0 16px;border-radius:12px;font-size:14px;font-weight:700}
.lv-room.gwdc{color:#fff;background:radial-gradient(80% 120% at 100% 0%,rgba(110,170,255,.45),transparent 60%),linear-gradient(135deg,#1747d6,#2a62f5 60%,#3b7bff)}
.lv-room.gwdc .lv-room-bar{background:#cdff1f}
.lv-room.gwdc .lv-room-logo{background:#cdff1f}
.lv-room.gwdc p{color:rgba(255,255,255,.82)}
.lv-room.gwdc .lv-room-cta{background:#cdff1f;color:#0b1a3d}
.lv-room.official{border:1px solid var(--line);background:var(--bg)}
.lv-room.official .lv-room-bar{background:var(--accent)}
.lv-room.official .lv-room-logo{background:var(--accent-bg)}
.lv-room.official p{color:var(--fg2)}
.lv-room.official .lv-room-cta{background:var(--accent-bg);color:var(--accent);border:1px solid rgba(42,98,245,.18)}
.lv-badge{position:absolute;right:28px;top:40px;height:24px;padding:0 10px;display:inline-flex;align-items:center;border-radius:6px;background:var(--accent-bg);color:var(--accent);font-size:12px;font-weight:700}

/* 直播间 */
.lv-rhead{display:flex;align-items:center;gap:14px;margin-top:20px}
.lv-rhead h1{font-size:22px;font-weight:700}
.lv-rhead p{margin-top:4px;font-size:13.5px;color:var(--fg3)}
.lv-rhead .lv-ghost{margin-left:auto}
.lv-rlogo{flex:none;display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;border-radius:12px;background:var(--accent-bg)}
.lv-stage{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:16px;margin-top:20px;align-items:stretch}
.lv-player{padding:14px;min-width:0}
.lv-sig{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}
.lv-sig-s{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;min-width:0}
.lv-sig-s i{flex:none;width:8px;height:8px;border-radius:50%;background:#e0a21a;box-shadow:0 0 0 3px rgba(224,162,26,.18)}
.lv-sig-s.live i{background:#e5383b;box-shadow:0 0 0 3px rgba(229,56,59,.2);animation:lvDot 1.4s ease-out infinite}
.lv-sig-s.idle i{background:var(--fg3);box-shadow:none}
@keyframes lvDot{0%{box-shadow:0 0 0 0 rgba(229,56,59,.5)}100%{box-shadow:0 0 0 8px rgba(229,56,59,0)}}
.lv-sig-s b{font-weight:600}
.lv-sig-s em{font-style:normal;height:22px;padding:0 8px;display:inline-flex;align-items:center;border-radius:6px;background:var(--bg2);font-size:12px;color:var(--fg2)}
.lv-sig-s em:empty{display:none}
.lv-sig-s.live em{background:#e5383b;color:#fff}
.lv-screen{position:relative;aspect-ratio:16/9;border-radius:12px;overflow:hidden;background:#0b1220}
.lv-screen video,.lv-screen img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;background:#000}
.lv-screen img{object-fit:cover}
.lv-idle{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:20px;text-align:center;color:rgba(255,255,255,.62);font-size:14px;background:radial-gradient(60% 80% at 50% 40%,rgba(42,98,245,.25),transparent 70%)}
.lv-idle span{display:inline-flex;align-items:center;justify-content:center;width:56px;height:56px;border-radius:50%;background:rgba(255,255,255,.08);color:#fff}
.lv-chat{display:flex;flex-direction:column;min-height:0;height:100%;max-height:640px;overflow:hidden}
.lv-chat-h{display:flex;align-items:center;gap:8px;padding:14px 16px;border-bottom:1px solid var(--line);font-size:14.5px}
.lv-chat-h b{font-weight:700}
.lv-online{margin-left:auto;height:22px;padding:0 9px;display:inline-flex;align-items:center;border-radius:11px;background:var(--accent-bg);color:var(--accent);font-size:12px;font-weight:600}
.lv-msgs{flex:1;min-height:260px;overflow-y:auto;padding:12px 14px;margin:0;list-style:none;display:flex;flex-direction:column;gap:8px;overscroll-behavior:contain}
.lv-msgs li{font-size:13.5px;line-height:1.6;overflow-wrap:anywhere}
.lv-msgs li b{color:var(--accent);font-weight:600;margin-right:6px}
.lv-msgs li time{margin-left:6px;font-size:11.5px;color:var(--fg3)}
.lv-msgs li.sys{padding:8px 10px;border-radius:10px;background:var(--accent-bg);color:var(--fg2)}
.lv-msgs li.join{color:var(--fg3);font-size:12.5px}
.lv-send{display:flex;gap:8px;padding:12px 14px;border-top:1px solid var(--line)}
.lv-send input{flex:1;min-width:0;height:38px;padding:0 14px;border-radius:19px;border:1px solid var(--line);background:var(--bg2);color:var(--fg);font:inherit;font-size:14px;outline:none}
.lv-send input:focus{border-color:var(--accent);background:var(--bg)}
.lv-send button{flex:none;height:38px;padding:0 18px;border:0;border-radius:19px;background:var(--accent);color:#fff;font:inherit;font-size:14px;font-weight:600;cursor:pointer}
.lv-send button:disabled,.lv-send input:disabled{opacity:.55;cursor:not-allowed}
.lv-chat-st{margin:0 14px 12px!important;font-size:12.5px;color:var(--fg3);text-align:center}

/* GWDC 专区 */
.lv-gw-hero{position:relative;overflow:hidden;margin-top:20px;padding:32px 36px;border-radius:20px;color:#fff;background:linear-gradient(135deg,#1747d6,#2a62f5 60%,#3b7bff)}
.lv-gw-hero::before,.lv-gw-hero::after{content:"";position:absolute;right:-40px;width:340px;height:64px;border-radius:32px;background:rgba(255,255,255,.1)}
.lv-gw-hero::before{top:22px}.lv-gw-hero::after{bottom:26px;right:40px;width:260px}
.lv-gw-logos{position:relative;display:flex;align-items:center;gap:12px}
.lv-gw-logos i{font-style:normal;font-size:18px;color:rgba(255,255,255,.8)}
.lv-gw-fxh{display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 12px;border-radius:8px;background:#fff;color:#1747d6;font-weight:700;font-size:14px}
.lv-gw-g{display:inline-flex;align-items:center;height:36px;padding:0 12px;border-radius:8px;background:#cdff1f}
.lv-gw-g img{height:22px;width:auto}
.lv-gw-hero h1{position:relative;margin-top:18px;font-size:clamp(24px,2.6vw,32px);font-weight:700}
.lv-gw-hero>p{position:relative;margin-top:6px;font-size:15px;color:rgba(255,255,255,.85)}
.lv-gw-meta{position:relative;display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;margin-top:20px;font-size:13.5px}
.lv-gw-meta span{display:inline-flex;align-items:center;gap:6px;color:rgba(255,255,255,.9)}
.lv-gw-meta a{display:inline-flex;align-items:center;gap:6px;height:34px;padding:0 14px;border-radius:8px;border:1px solid rgba(255,255,255,.45);color:#fff!important;font-weight:600}
.lv-gw-meta a:hover{background:rgba(255,255,255,.12)}
.lv-gw-sec{margin-top:20px;padding:28px}
.lv-gw-sec h2{margin-top:8px;font-size:22px;font-weight:700}
.lv-gw-sec>p,.lv-gw-scene>div>p{margin-top:8px;font-size:14px;line-height:1.7;color:var(--fg2)}
.lv-gw-scene{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:28px;align-items:center}
.lv-gw-scene dl{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:0}
.lv-gw-scene dl div{padding:16px;border-radius:12px;background:var(--bg2)}
.lv-gw-scene dt{font-size:12.5px;color:var(--fg3)}
.lv-gw-scene dd{margin:6px 0 0;font-size:24px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums}
.lv-gw-axes{border-radius:20px;color:#fff;background:linear-gradient(135deg,#1747d6,#2a62f5)}
.lv-gw-axes .lv-eb{color:#cdff1f}
.lv-gw-axes>p{color:rgba(255,255,255,.82)}
.lv-gw-axes ul,.lv-gw-line ul{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:20px}
.lv-gw-axes li{padding:20px;border-radius:14px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.16)}
.lv-gw-axes li span,.lv-gw-line li span{display:inline-flex;color:#cdff1f}
.lv-gw-axes li b,.lv-gw-line li b{display:block;margin-top:12px;font-size:16px;font-weight:700}
.lv-gw-axes li p{margin-top:6px;font-size:13.5px;line-height:1.65;color:rgba(255,255,255,.8)}
.lv-gw-line li{padding:20px;border-radius:14px;background:var(--bg2);border-left:3px solid #b8e600}
.lv-gw-line li span{color:var(--accent)}
.lv-gw-line li p{margin-top:6px;font-size:13.5px;line-height:1.65;color:var(--fg2)}
.lv-gw-report{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:20px;padding:28px;border-radius:20px;background:#cdff1f;color:#0b1a3d!important}
.lv-gw-report .lv-eb{color:#1747d6}
.lv-gw-report h2{margin-top:8px;font-size:22px;font-weight:700}
.lv-gw-report p{margin-top:6px;font-size:14px;color:rgba(11,26,61,.75)}
.lv-btn{flex:none;display:inline-flex;align-items:center;gap:6px;height:42px;padding:0 20px;border-radius:10px;background:#1747d6;color:#fff;font-size:14px;font-weight:700}

/* 列表页 */
.lv-seg{display:flex;gap:4px;padding:4px;border-radius:12px;background:var(--bg2)}
.lv-seg button{height:32px;padding:0 14px;border:0;border-radius:9px;background:none;color:var(--fg2);font:inherit;font-size:13.5px;font-weight:600;cursor:pointer}
.lv-seg button.on{background:var(--bg);color:var(--accent);box-shadow:0 1px 3px rgba(16,24,40,.08)}
:root[data-theme=dark] .lv-seg button.on{background:#1f2836}
.lv-search{display:flex;align-items:center;gap:8px;height:38px;width:min(320px,100%);padding:0 14px;border-radius:19px;border:1px solid var(--line);background:var(--bg2);color:var(--fg3)}
.lv-search input{flex:1;min-width:0;border:0;background:none;color:var(--fg);font:inherit;font-size:14px;outline:none}
.lv-list{margin-top:24px}
.lv-sk{height:84px;margin-bottom:12px;border-radius:14px;background:var(--bg2);animation:opSk 1.2s ease-in-out infinite}
.lv-empty{max-width:440px;margin:56px auto;padding:28px 24px;border-radius:16px;border:1px solid var(--line);text-align:center;box-shadow:0 8px 24px rgba(16,24,40,.05)}
.lv-empty span{font-size:11px;font-weight:700;letter-spacing:.24em;color:var(--fg3)}
.lv-empty b{display:block;margin-top:8px;font-size:18px;font-weight:700}
.lv-empty p{margin-top:6px!important;font-size:13.5px;color:var(--fg3)}
.lv-list.lv-live:not(:has(.lv-sk)){display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.lv-bc{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:var(--bg);transition:border-color .15s,transform .15s}
.lv-bc:hover{border-color:var(--accent);transform:translateY(-1px)}
.lv-bc .cv{position:relative;aspect-ratio:16/9;background:linear-gradient(135deg,var(--accent-bg),var(--bg2))}
.lv-bc .cv img{width:100%;height:100%;object-fit:cover}
.lv-st{position:absolute;left:10px;top:10px;height:22px;padding:0 9px;display:inline-flex;align-items:center;border-radius:11px;font-size:12px;font-weight:600;color:#fff;background:rgba(70,78,92,.85)}
.lv-st.LIVE,.lv-st.live{background:#e5383b}.lv-st.SCHEDULED,.lv-st.scheduled{background:var(--accent)}
.lv-bc .bd{padding:14px 16px}
.lv-bc h3,.lv-sp h3,.lv-op h3{font-size:15.5px;line-height:1.5;font-weight:600}
.lv-bc time,.lv-sp .meta,.lv-op .meta{display:block;margin-top:6px;font-size:12.5px;color:var(--fg3)}
.lv-sp{display:grid;grid-template-columns:48px minmax(0,1fr) auto;gap:14px;align-items:center;padding:16px 18px;margin-bottom:12px;border:1px solid var(--line);border-radius:14px;background:var(--bg)}
.lv-av{width:48px;height:48px;border-radius:50%;object-fit:cover;background:var(--accent-bg);display:inline-flex;align-items:center;justify-content:center;color:var(--accent);font-weight:700}
.lv-sp .go{display:inline-flex;align-items:center;height:34px;padding:0 14px;border-radius:17px;background:var(--accent-bg);color:var(--accent)!important;font-size:13px;font-weight:600}
.lv-op{padding:20px;margin-bottom:14px;border:1px solid var(--line);border-radius:16px;background:var(--bg)}
.lv-op .sum{margin-top:10px!important;font-size:14px;line-height:1.75;color:var(--fg2)}
.lv-op ol{margin:14px 0 0;padding:0;list-style:none;display:flex;flex-direction:column;gap:10px}
.lv-op li{padding:12px 14px;border-radius:12px;background:var(--bg2);font-size:14px;line-height:1.65}
.lv-op .vote{display:flex;gap:8px;margin-top:8px}
.lv-op .vote button{height:28px;padding:0 12px;border-radius:14px;border:1px solid var(--line);background:var(--bg);color:var(--fg2);font:inherit;font-size:12.5px;cursor:pointer}
.lv-op .vote button:hover{border-color:var(--accent);color:var(--accent)}
.lv-list.lv-speakers:not(:has(.lv-sk)){display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.lv-pk{display:flex;flex-direction:column;align-items:center;text-align:center;padding:22px 16px;border:1px solid var(--line);border-radius:16px;background:var(--bg)}
.lv-pk .lv-av{width:64px;height:64px;font-size:20px}
.lv-pk b{margin-top:12px;font-size:15px;font-weight:700}
.lv-pk small{margin-top:2px;font-size:12.5px;color:var(--fg3)}
.lv-pk span{margin-top:10px;font-size:12.5px;color:var(--accent);font-weight:600}
.lv-more{margin-top:8px}

@media (max-width:1100px){.lv-stage{grid-template-columns:minmax(0,1fr)}.lv-chat{height:460px;max-height:none}.lv-gw-scene{grid-template-columns:minmax(0,1fr)}.lv-list.lv-speakers:not(:has(.lv-sk)){grid-template-columns:repeat(3,minmax(0,1fr))}}
@media (max-width:900px){.lv-rooms{grid-template-columns:minmax(0,1fr)}.lv-gw-axes ul,.lv-gw-line ul{grid-template-columns:minmax(0,1fr)}.lv-list.lv-live:not(:has(.lv-sk)){grid-template-columns:repeat(2,minmax(0,1fr))}.lv-gw-report{flex-direction:column;align-items:flex-start}}
@media (max-width:640px){
  .lv-tabs{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none;margin:0 -16px;padding:0 16px 12px}
  .lv-tabs::-webkit-scrollbar{display:none}
  .lv-tabs a{flex:none;padding:0 14px}
  .lv-head h1{font-size:24px}
  .lv-room{min-height:0;padding:24px 20px 20px}.lv-room-bar{left:20px;right:20px}.lv-badge{right:20px}
  .lv-gw-hero{padding:24px 20px}.lv-gw-hero::before,.lv-gw-hero::after{display:none}
  .lv-gw-sec,.lv-gw-report{padding:22px 18px}
  .lv-gw-scene dl{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.lv-gw-scene dl div{padding:12px 10px}.lv-gw-scene dd{font-size:19px}
  .lv-player{padding:10px}
  .lv-chat{height:420px}
  .lv-list.lv-live:not(:has(.lv-sk)){grid-template-columns:minmax(0,1fr)}
  .lv-list.lv-speakers:not(:has(.lv-sk)){grid-template-columns:repeat(2,minmax(0,1fr))}
  .lv-sp{grid-template-columns:40px minmax(0,1fr);gap:12px}.lv-sp .go{grid-column:1/-1;justify-content:center}.lv-sp .lv-av{width:40px;height:40px}
  .lv-rhead .lv-ghost{display:none}
}
@media (prefers-reduced-motion:reduce){.lv-sig-s.live i,.lv-sk{animation:none}.lv-room,.lv-bc{transition:none}}