*{box-sizing:border-box}
:root{color-scheme:light;--blue:#1265f4;--green:var(--blue);--ink:#18253c;--muted:#5c6b82;--line:#e3e9f2;--paper:#f5f7fb}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;-webkit-font-smoothing:antialiased;caret-color:var(--blue)}
button,input,textarea,select{font:inherit}
button,a{color:inherit;-webkit-tap-highlight-color:transparent}
button{border:0;background:none;cursor:pointer}
button:disabled{opacity:.5;cursor:wait}
a{text-decoration:none}
button,input{touch-action:manipulation}
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:2px solid var(--blue);outline-offset:3px}
::selection{background:#d6e6ff;color:#123975}
[hidden]{display:none!important}
.ic{width:20px;height:20px;flex:none;vertical-align:middle}
.sr{position:absolute;width:1px;height:1px;clip-path:inset(50%);overflow:hidden;white-space:nowrap}
.flex{flex:1}
.wrap{width:min(1320px,calc(100% - 64px));margin-inline:auto}
.mast{height:68px;background:#fff;border-bottom:1px solid var(--line)}
.head-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:32px}
.brand{display:inline-flex;align-items:center;gap:8px;white-space:nowrap}
.brand img{width:41px;height:35px}
.brand span{font-size:23px;font-weight:800;line-height:1.1;letter-spacing:.5px}
.brand small{display:block;font:700 11px/1 Arial,sans-serif;letter-spacing:1.5px;margin-top:5px}
.desktop-nav{display:flex;align-items:center;gap:6px}
.nav-item{height:44px;padding:0 20px;border-radius:24px;color:#51627c;font-size:14px;font-weight:650}
.nav-item.active{background:#edf4ff;color:#1554b6}
.banner{position:relative;display:block;aspect-ratio:10/1;margin:18px 0;background:#e8f2ff;border-radius:14px;overflow:hidden}
.banner picture,.banner picture img,.banner>.custom-ad{display:block;width:100%;height:100%;object-fit:cover}
.banner-fallback{height:100%;display:flex;align-items:center;padding-inline:5%;font-size:24px;font-weight:800;color:#1554b6}
.broadcast{display:grid;grid-template-columns:minmax(0,1fr) 380px;align-items:stretch;gap:18px}
.maincol{min-width:0;align-self:start;border:1px solid var(--line);background:#fff;border-radius:16px;overflow:hidden}
.player{position:relative;width:100%;aspect-ratio:16/9;background:#0b1321;color:#fff;isolation:isolate;overflow:hidden}
#media-layer,#media-layer video,#media-layer>.tcp-player{position:absolute!important;inset:0;width:100%!important;height:100%!important}
#media-layer video{object-fit:contain}
.player:fullscreen{width:100vw;height:100vh;aspect-ratio:auto}
.player-shade{position:absolute;inset:0;pointer-events:none;background:linear-gradient(transparent 62%,#030d2466)}
.big-play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);display:grid;place-items:center;width:58px;height:58px;border-radius:50%;background:#0b173567;border:1px solid #ffffffb8;color:#fff;transition:background .18s}
.big-play .ic{width:29px;height:29px;margin-left:3px}
.player.playing .big-play,.player.loading .big-play{visibility:hidden}
.controls{position:absolute;z-index:2;left:10px;right:10px;bottom:3px;display:flex;align-items:center;gap:8px;height:44px}
.controls button{width:44px;height:44px;display:grid;place-items:center;border-radius:8px;color:#fff;flex:none}
.controls .ic{width:19px;height:19px}
.control-div{height:13px;width:1px;background:#ffffff40;margin-inline:1px}
#duration{font:500 11px/1.4 ui-monospace,Consolas,monospace;white-space:nowrap}
.player-status{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;gap:10px;font-size:13px;pointer-events:none;background:#07132730}
.player-status:before{content:"";width:20px;height:20px;border:2px solid #ffffff55;border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.media-error{position:absolute;z-index:1;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;padding:24px 24px 50px;text-align:center;background:#0b1321e8;font-size:14px;line-height:1.6}
.media-error button{background:var(--blue);color:#fff;padding:10px 22px;min-height:44px;border-radius:24px}
.media-error-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:8px}
.media-error #copy-player-diagnostics{background:transparent;color:#d6e2f4;border:1px solid #ffffff40;padding-inline:16px}
.room-meta{min-height:62px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:9px 16px}
.room-info{min-width:0}
.room-info h1{font-size:18px;font-weight:700;line-height:1.45;margin:0;overflow-wrap:anywhere}
.outline{display:inline-flex;align-items:center;justify-content:center;gap:6px}
.save-room{min-height:44px;padding:0 14px;border-radius:24px;background:#eff5ff;color:#1554b6;font-size:12px;font-weight:650;flex:none}
.save-room .ic{width:17px;height:17px}
.save-room.on .ic{fill:#c9ddff}
.side{min-width:0;min-height:0;display:flex;flex-direction:column;contain:size;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:16px}
.mobile-tabs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;padding:10px 12px;border-bottom:1px solid var(--line);flex:none;background:#fff}
.mobile-tabs button{display:flex;align-items:center;justify-content:center;gap:6px;height:44px;min-width:0;padding:0 10px;border-radius:24px;font-size:14px;font-weight:700;color:#50627e;background:#f0f4fa;transition:background .16s,color .16s}
.mobile-tabs button[aria-selected=true]{color:#fff;background:var(--blue)}
.mobile-tabs .ic{width:18px;height:18px}
.tab-panels{display:flex;flex:1;min-height:0;min-width:0}
.chat-panel{display:flex;flex-direction:column;flex:1;min-width:0;min-height:0}
.chat-notice{display:flex;align-items:center;gap:5px;min-height:37px;padding:8px 12px;background:#f3f7ff;color:#315d99;font-size:12px;line-height:1.5;overflow:hidden;flex:none}
.chat-notice .ic{width:16px;height:16px;color:var(--blue)}
.chat-notice strong{white-space:nowrap;font-weight:650;color:#194480}
.ticker{flex:1;min-width:0;overflow:hidden;white-space:nowrap}
.ticker-track{display:flex;width:max-content;animation:notice-scroll var(--notice-duration,18s) linear infinite}
.ticker-track span{display:block;flex:none;padding-right:44px}
.chat-notice:hover .ticker-track{animation-play-state:paused}
@keyframes notice-scroll{to{transform:translateX(calc(-1 * var(--notice-step,0px)))}}
.log{position:relative;flex:1;min-height:0;overflow:auto;padding:12px 14px;scrollbar-width:thin;scrollbar-color:#c7d5eb transparent;overscroll-behavior:contain}
.conversation-empty{position:absolute;top:45%;left:16px;right:16px;text-align:center;margin:0;font-size:13px;color:#63738b}
.message-line{margin:0 0 16px}
.who{display:flex;align-items:baseline;gap:8px;color:#4d627f;font-size:12px;font-weight:650;line-height:1.5}
.who time{font-size:11px;font-weight:400;color:#62718a;font-variant-numeric:tabular-nums}
.message-body{display:inline-block;max-width:100%;margin-top:4px;padding:8px 10px;background:#f1f5fb;border-radius:0 12px 12px 12px;color:#334967;font-size:13px;line-height:1.65;overflow-wrap:anywhere;white-space:pre-wrap}
.network-info{color:#8f4d25;font-size:12px;line-height:1.5;margin:2px 14px}
.composer{display:flex;align-items:center;gap:4px;flex:none;min-height:52px;margin:8px 12px 12px;padding:3px 4px 3px 14px;border:1px solid var(--line);border-radius:28px;background:#f5f7fb}
.composer:focus-within{border-color:var(--blue);box-shadow:0 0 0 2px #dce9ff}
.composer input{min-width:0;flex:1;width:100%;background:none;border:0;outline:0;color:var(--ink);font-size:14px;line-height:1.5;padding:5px 0}
.composer input:focus-visible{outline:0}
.composer input::placeholder{color:#5c6b81}
.composer button{display:grid;place-items:center;flex:none;width:44px;height:44px;border-radius:50%;background:var(--blue);color:#fff}
.composer button .ic{width:21px;height:21px}
.channel-section,.download-section{flex:1;min-width:0;min-height:0;overflow:auto;padding:14px 12px 18px;scrollbar-width:thin;scrollbar-color:#c7d5eb transparent;overscroll-behavior:contain}
.channel-section{display:flex;flex-direction:column;overflow:hidden}
.channel-list,.channel-section>.grid{flex:1;min-height:0;max-height:var(--channel-list-limit,none);overflow-x:hidden;overflow-y:auto;padding:3px;margin:-3px;scrollbar-width:thin;scrollbar-color:#c7d5eb transparent;overscroll-behavior-y:contain;-webkit-overflow-scrolling:touch;overflow-anchor:none}
.channel-list .grid,.channel-section>.grid{align-content:start}
.channel-scroll-hint{display:flex;align-items:center;justify-content:center;flex:none;gap:5px;min-height:20px;margin-top:10px;color:#63718a;font-size:11px;line-height:1.5;pointer-events:none;user-select:none}
.channel-scroll-hint svg{width:14px;height:14px;flex:none;animation:channel-scroll-cue 1.8s ease-in-out 3}
@keyframes channel-scroll-cue{0%,100%{transform:translateY(-1px)}50%{transform:translateY(2px)}}
.channel-filters{display:flex;align-items:center;gap:4px;margin:-4px 0 10px}
.channel-section .channel-filters{flex:none}
.channel-filters button{display:grid;place-items:center;min-width:0;flex:1;min-height:44px;padding:5px 8px;border-radius:10px;color:#63718a;font-size:13px;font-weight:550}
.channel-filters button[aria-pressed=true]{color:#1554b6;background:#edf4ff;font-weight:700}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.card{position:relative;min-width:0}
.card-main{display:block;width:100%;padding:0;text-align:left}
.thumb{position:relative;aspect-ratio:16/9;overflow:hidden;border-radius:12px;background:#e9f0fa}
.thumb img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .25s cubic-bezier(.2,.7,.2,1)}
.thumb.image-unavailable{display:grid;place-items:center;color:#6682ab}
.card-main[aria-current=true] .thumb{outline:2px solid var(--blue);outline-offset:-2px}
.card-title{display:flex;align-items:center;min-height:44px;margin:1px 37px 0 1px;font-size:13px;font-weight:650;line-height:1.5;overflow-wrap:anywhere}
.card-main[aria-current=true] .card-title{color:#1058d3}
.card-save{position:absolute;right:-4px;bottom:0;display:grid;place-items:center;width:44px;height:44px;color:#61718b;border-radius:50%}
.card-save .ic{width:18px;height:18px}
.card-save.on{color:var(--blue)}
.card-save.on .ic{fill:#e1ecff}
.empty{padding:44px 12px;text-align:center;font-size:13px;color:var(--muted);line-height:1.6;margin:0}
.footer{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:11px;color:#5e708b;margin-top:22px;padding:15px 0 22px}
.footer b{font:500 11px Arial,sans-serif;letter-spacing:1px;margin-left:6px}
.footer a{display:inline-flex;align-items:center;gap:4px;min-height:32px}
.footer .ic{width:13px;height:13px}
.toast{position:fixed;z-index:10;left:50%;bottom:24px;transform:translateX(-50%);max-width:calc(100vw - 32px);padding:10px 16px;border-radius:10px;background:#172c51;color:#fff;font-size:13px;line-height:1.5;pointer-events:none;opacity:0;transition:opacity .18s}
.toast.show{opacity:1}
.site-update{position:fixed;z-index:22;top:max(12px,env(safe-area-inset-top));left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:14px;max-width:calc(100vw - 24px);padding:4px 6px 4px 14px;border:1px solid #dce6f4;border-radius:30px;background:#fff;color:#172c51;box-shadow:0 4px 20px #18355d1a;font-size:13px;white-space:nowrap}
.site-update button{min-height:40px;padding:0 16px;border-radius:22px;background:var(--blue);color:#fff;font-weight:600}
.primary{padding:10px 20px;min-height:44px;background:var(--blue);color:#fff;border-radius:24px}
@media(hover:hover){
 .nav-item:hover,.channel-filters button:hover{background:#edf4ff;color:#1058d3}
 .card-main:hover .thumb img{transform:scale(1.025)}
 .card-main:hover .card-title{color:#1058d3}
 .card-save:hover{background:#edf4ff;color:var(--blue)}
 .big-play:hover{background:#154da497}
 .controls button:hover{background:#ffffff1a}
}
@media(min-width:761px) and (max-width:1100px){
 .wrap{width:calc(100% - 40px)}
 .broadcast{grid-template-columns:minmax(0,1fr) 330px;gap:14px}
 .room-info h1{font-size:16px}
}
@media(max-width:760px), (max-width:1024px) and (orientation:landscape) and (max-height:600px){
 body{background:#fff}
 .wrap{width:100%}
 .mast,.footer{display:none}
 .banner{aspect-ratio:5/1;margin:0;border-radius:0}
 .broadcast{display:block}
 .maincol{border:0;border-radius:0}
 .room-meta{display:none}
 .big-play{width:48px;height:48px}
 .big-play .ic{width:25px;height:25px}
 .side{contain:none;border:0;border-radius:0;overflow:visible}
 .mobile-tabs{gap:9px;padding:8px 12px}
 .tab-panels{display:block}
 .chat-panel{height:calc(100dvh - 76.25vw - 61px);min-height:220px}
 .composer{margin-bottom:max(10px,env(safe-area-inset-bottom))}
 .composer input{font-size:16px}
 .channel-section,.download-section{padding:12px 12px 20px;overflow:visible}
 .channel-section{height:max(0px,calc(100dvh - 76.25vw - 61px));min-height:0;overflow:hidden;padding-bottom:max(12px,env(safe-area-inset-bottom))}
 .card-title{font-size:14px;min-height:34px;margin:3px 1px 0}
 .card-save{display:none}
 .channel-filters{gap:6px;margin:-4px 0 10px}
 .channel-filters button{font-size:14px}
 .toast{bottom:max(68px,env(safe-area-inset-bottom))}
}
@media(max-width:1024px) and (orientation:landscape) and (max-height:600px){
 .banner{height:56px;aspect-ratio:auto}
 .banner picture img,.banner>.custom-ad{object-fit:contain}
 .broadcast{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(270px,1fr);height:calc(100dvh - 56px);gap:0}
 .maincol,.player{height:100%;aspect-ratio:auto}
 .side{contain:size;overflow:hidden;border-left:1px solid var(--line)}
 .mobile-tabs{padding:7px 8px;gap:6px}
 .mobile-tabs button{padding:0 6px;font-size:13px;gap:4px}
 .mobile-tabs .ic{width:16px;height:16px}
 .tab-panels{display:flex}
 .chat-panel{height:auto;min-height:0}
 .channel-section,.download-section{overflow:auto;padding:10px}
 .channel-section{height:auto;overflow:hidden}
 .chat-notice{padding-inline:10px;font-size:12px}
 .composer{margin:5px 8px 8px;min-height:48px;padding:2px 3px 2px 12px}
 .composer button{width:42px;height:42px}
 .log{padding:8px 10px}
 .card-title{font-size:12px}
 .channel-filters{gap:2px}
 .channel-filters button{font-size:12px;padding-inline:4px}
}
/* Preserve the pre-focus page. Only the composer moves above the keyboard. */
.composer input{font-size:16px}
html.chat-pinned{overflow:hidden;scroll-behavior:auto;overscroll-behavior:none}
.chat-pinned body{position:fixed;top:var(--chat-page-top);left:var(--chat-page-left);width:var(--chat-page-width);overflow:visible;scroll-behavior:auto}
.chat-pinned .mast{display:var(--chat-mast-display);height:var(--chat-mast-height)}
.chat-pinned .footer{display:var(--chat-footer-display)}
.chat-pinned .banner{display:var(--chat-banner-display);height:var(--chat-banner-height);aspect-ratio:auto}
.chat-pinned .broadcast{display:var(--chat-broadcast-display);grid-template-columns:var(--chat-columns);gap:var(--chat-gap);height:var(--chat-broadcast-height)}
.chat-pinned .maincol{height:var(--chat-main-height)}
.chat-pinned .player{height:var(--chat-player-height);aspect-ratio:auto}
.chat-pinned .room-meta{display:var(--chat-meta-display);height:var(--chat-meta-height)}
.chat-pinned .side{height:var(--chat-side-height)}
.chat-pinned .mobile-tabs{height:var(--chat-tabs-height);padding:var(--chat-tabs-padding)}
.chat-pinned .chat-notice{display:var(--chat-notice-display);height:var(--chat-notice-height)}
.chat-pinned .chat-panel{height:var(--chat-panel-height);min-height:0;flex:none}
.chat-keyboard .chat-panel::after{content:"";display:block;flex:none;height:var(--chat-composer-slot)}
.chat-keyboard .composer{position:fixed;z-index:20;top:var(--chat-composer-top);left:var(--chat-composer-left);width:var(--chat-composer-width);height:var(--chat-composer-height);min-height:48px;margin:0;background:#f5f7fb}
.chat-pinned .log{scroll-behavior:auto;overflow:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch}
.chat-keyboard .toast{z-index:21;top:calc(var(--chat-visible-top) + var(--chat-visible-height) - 112px);bottom:auto}
@media(prefers-reduced-motion:reduce){
 *,*:before,*:after{scroll-behavior:auto!important;transition:none!important}
 .thumb img{transform:none!important}
 .ticker{white-space:normal}
 .ticker-track{display:block;animation:none;transform:none;width:auto}
 .ticker-track span{padding-right:0;overflow-wrap:anywhere}
 .ticker-track span[aria-hidden]{display:none}
 .player-status:before{animation:none}
 .channel-scroll-hint svg{animation:none;transform:none}
}

/* Live metadata and bounded realtime overlays. */
.channel-state{position:absolute;right:8px;bottom:8px;padding:3px 7px;border-radius:5px;background:rgba(12,23,42,.72);color:#fff;font-size:11px;font-weight:600}.channel-state.is-live{background:#1466d1}
.role-badge{display:inline-block;margin-left:6px;padding:1px 4px;border-radius:3px;background:#e8f1ff;color:#235c9c;font-size:10px;line-height:15px}.message-body.withdrawn{color:var(--muted,#718096);font-style:italic}
.danmaku,.player-announcements{position:absolute;inset:0;pointer-events:none;overflow:hidden;z-index:3}.danmaku-line{position:absolute;left:100%;white-space:nowrap;color:#fff;font-size:18px;font-weight:600;text-shadow:0 1px 3px #000,1px 0 2px #000;will-change:transform;animation:milan-danmaku linear both}
@keyframes milan-danmaku{to{transform:translateX(var(--travel))}}
.controls{z-index:6}.controls .danmaku-toggle{width:auto;min-width:42px;font-size:12px;opacity:.6}.controls .danmaku-toggle[aria-pressed=true]{opacity:1}.player-announcement{position:absolute;left:0;right:0;overflow:hidden;white-space:nowrap}.player-announcement>span{display:inline-block;min-width:max-content;padding-left:100%;text-shadow:0 1px 3px #000;animation:milan-marquee linear infinite}
@keyframes milan-marquee{to{transform:translateX(-100%)}}
@media(prefers-reduced-motion:reduce){.danmaku{display:none}.player-announcement>span{animation:none;padding:0 16px;white-space:normal;min-width:0}}
@media(max-width:760px){.danmaku-line{font-size:15px}}