*{box-sizing:border-box;margin:0;padding:0;user-select:none;-webkit-user-select:none;-webkit-tap-highlight-color:transparent}
html,body{height:100%;overflow:hidden;background:#0b0b0b;color:#fff;font-family:system-ui,-apple-system,"Microsoft YaHei",sans-serif;cursor:default}
body{display:flex;justify-content:center}

/* logo用独立div+CSS背景，固定左上角，按图片原始比例480:340设置尺寸，半透明大水印 */
.logoBg{position:fixed;top:8px;left:10px;width:500px;height:355px;background-image:url('assets/logo.png');background-size:contain;background-repeat:no-repeat;background-position:left top;z-index:200;pointer-events:none;opacity:.55;transition:opacity .3s ease}
.logoBg.hide{opacity:0}

#app{width:100%;height:100%;position:relative}

main{width:min(1200px,100vw);height:100vh;height:100dvh;display:flex;flex-direction:column;position:relative;max-height:100vh;max-height:100dvh}

/* 歌单面板：播放时和控制栏一起隐藏 */
.searchPanel{padding:10px 14px 12px;background:rgba(17,17,17,.96);border-bottom:1px solid #222;transition:opacity .4s ease,transform .4s ease,max-height .4s ease,padding .4s ease;max-height:42vh;overflow:hidden;z-index:10}
.searchPanel.hiddenBar{opacity:0;transform:translateY(-100%);pointer-events:none;max-height:0;padding:0;border-bottom:none}
.searchRow{display:flex;gap:8px}
.searchRow input{flex:1;min-width:0;background:#222;color:#fff;border:1px solid #444;border-radius:10px;padding:10px 12px;font-size:14px;outline:none}
.searchRow input:focus{border-color:#f36b0a}
.songList{max-height:calc(42vh - 56px);min-height:120px;overflow:auto;margin-top:8px}
.songList::-webkit-scrollbar{width:4px}
.songList::-webkit-scrollbar-thumb{background:#444;border-radius:2px}
.result{display:flex;align-items:center;justify-content:space-between;padding:9px 6px;border-bottom:1px solid #1e1e1e;gap:10px;cursor:pointer;border-radius:6px}
.result:active{background:#1e1e1e}
.resultTitle{font-size:14px}
.resultMeta{color:#777;font-size:10px;margin-top:2px}

/* 舞台 */
.stage{position:relative;flex:1;min-height:0;display:flex;flex-direction:column;justify-content:center;overflow:hidden;background:radial-gradient(circle at 50% 40%,#1a1a1a 0,#0b0b0b 70%)}
.meta{display:flex;justify-content:space-between;color:#666;font-size:12px;position:absolute;left:5vw;right:5vw;top:14px;z-index:2}

/* 歌词视口 + 平滑向上滚动 */
.lyricsViewport{height:100%;overflow:hidden;position:relative}
.lyricsViewport::before,.lyricsViewport::after{content:'';position:absolute;left:0;right:0;height:100px;z-index:2;pointer-events:none}
.lyricsViewport::before{top:0;background:linear-gradient(to bottom,#0b0b0b,transparent)}
.lyricsViewport::after{bottom:0;background:linear-gradient(to top,#0b0b0b,transparent)}
.lyricsTrack{width:100%;transition:transform .5s cubic-bezier(.25,.46,.45,.94);will-change:transform}
.lyricSpacer{width:100%}
.lyricLine{text-align:center;padding:18px 8vw;font-weight:600;line-height:1.4;color:#555;font-size:26px;transition:color .4s ease,font-size .4s ease,opacity .4s ease;opacity:.3;white-space:pre-wrap}
.lyricLine.active{color:#fff;font-size:var(--active-size,46px);opacity:1;text-shadow:0 0 30px rgba(243,107,10,.35)}
.lyricLine.near{color:#999;opacity:.65;font-size:calc(var(--active-size,46px) * 0.7)}

/* 控制栏 */
.controls{padding:10px 14px calc(14px + env(safe-area-inset-bottom));background:rgba(17,17,17,.95);border-top:1px solid #222;transition:opacity .4s ease,transform .4s ease;z-index:20;flex-shrink:0;-webkit-transform:translateZ(0);transform:translateZ(0)}
.controls.hiddenBar{opacity:0;transform:translateY(100%);pointer-events:none}
.controls input[type=range]{width:100%;accent-color:#f36b0a;height:6px;cursor:pointer}
.controlRow{display:flex;justify-content:center;gap:6px;flex-wrap:wrap;margin-top:8px}
.controlRow button{border:0;border-radius:10px;background:#242424;color:#fff;padding:10px 12px;font-size:15px;cursor:pointer;min-width:48px}
.controlRow button:active{transform:scale(.93)}
.controlRow .play{background:#f36b0a;font-size:20px;min-width:60px}

/* 倒计时 */
.countdown{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);font-size:140px;font-weight:800;color:#f36b0a;z-index:200;text-shadow:0 0 50px rgba(243,107,10,.6);pointer-events:none;animation:cdPulse .9s ease infinite}
@keyframes cdPulse{0%{transform:translate(-50%,-50%) scale(.8);opacity:.3}30%{transform:translate(-50%,-50%) scale(1.1);opacity:1}100%{transform:translate(-50%,-50%) scale(1.3);opacity:0}}

/* 双击快进快退反馈 */
.seekFeedback{position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);font-size:48px;font-weight:700;color:#f36b0a;z-index:150;pointer-events:none;text-shadow:0 0 20px rgba(243,107,10,.5);animation:seekFade .8s ease forwards}
@keyframes seekFade{0%{opacity:0;transform:translate(-50%,-50%) scale(.5)}20%{opacity:1;transform:translate(-50%,-50%) scale(1.1)}100%{opacity:0;transform:translate(-50%,-70%) scale(1)}}

/* 设置面板 */
.settings{position:fixed;right:14px;bottom:80px;width:min(320px,calc(100vw - 28px));background:#1a1a1a;border:1px solid #333;border-radius:14px;padding:16px;z-index:50;box-shadow:0 10px 40px #000}
.settings h2{margin:0 0 10px;font-size:16px;color:#f36b0a}
.settings label{display:flex;justify-content:space-between;align-items:center;gap:10px;margin:12px 0;color:#ddd;font-size:13px}
.settings select,.settings input{max-width:140px;background:#292929;color:#fff;border:1px solid #444;border-radius:7px;padding:5px}
.settings input[type=checkbox]{width:18px;height:18px;accent-color:#f36b0a;max-width:none}
.settings button{width:100%;background:#f36b0a;color:#fff;border:0;border-radius:8px;padding:9px;margin-top:8px;cursor:pointer;font-size:14px}
.hidden{display:none!important}

/* 横屏：给歌单足够高度，确保搜索结果可见 */
@media (orientation:landscape) and (min-width:700px){
  .logoBg{width:420px;height:298px;top:6px;left:14px}
  .searchPanel{max-height:45vh}
  .songList{max-height:calc(45vh - 56px);min-height:100px}
  .lyricLine{font-size:24px;padding:14px 12vw}
  .lyricLine.active{font-size:var(--active-size,clamp(38px,4.5vw,60px))}
  .lyricLine.near{font-size:calc(var(--active-size,46px) * 0.7)}
}

/* ===== 桌面端适配：充分利用大屏幕 ===== */
.is-desktop main{width:100%;max-width:100%}
.is-desktop .searchPanel{padding:16px 24px 18px;max-height:50vh}
.is-desktop .searchInput{font-size:18px;padding:14px 18px}
.is-desktop .result{padding:12px 10px}
.is-desktop .resultTitle{font-size:17px}
.is-desktop .resultMeta{font-size:12px}
.is-desktop .songList{max-height:calc(50vh - 70px)}
.is-desktop .lyricLine{font-size:28px;padding:18px 20vw}
.is-desktop .lyricLine.active{font-size:var(--active-size,clamp(48px,4vw,72px))}
.is-desktop .lyricLine.near{font-size:calc(var(--active-size,56px) * 0.7)}
.is-desktop .controls{padding:16px 24px 20px}
.is-desktop .controls button{font-size:18px;padding:14px 20px}
.is-desktop .controls input[type=range]{height:8px}
.is-desktop .nowPlaying{font-size:18px}
.is-desktop .timeDisplay{font-size:16px}
.is-desktop .logoBg{width:500px;height:355px;top:10px;left:20px;opacity:.5}
.is-desktop .settings{width:360px;padding:24px}
.is-desktop .settings label{font-size:16px}
.is-desktop .settings select,.is-desktop .settings input[type=range]{font-size:16px}