#root{min-height:100vh}:root{color:#172033;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;--bg:#f6f7fb;--panel:#fff;--panel-soft:#f0f4f8;--ink:#172033;--muted:#667085;--subtle:#8a94a6;--line:#dde3ec;--blue:#2367d8;--blue-strong:#164cb5;--coral:#e86f51;--mint:#2f9e83;--shadow:0 18px 50px #1720331f;background:#f6f7fb;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Microsoft YaHei,sans-serif}*{box-sizing:border-box}body{background:var(--bg);min-width:320px;min-height:100vh;margin:0}button,input{font:inherit}button{border:0}.app-shell{background:linear-gradient(90deg,#2367d814,#0000 34%),linear-gradient(#fff 0,#f6f7fb 45%);grid-template-rows:64px minmax(0,1fr) 86px;height:100dvh;display:grid;overflow:hidden}.topbar,.player-bar{border-color:var(--line);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);background:#ffffffeb;align-items:center;gap:14px;padding:10px 18px;display:grid}.topbar{border-bottom:1px solid var(--line);grid-template-columns:minmax(260px,auto) minmax(0,1fr) auto}.topbar__left,.topbar__right,.transport,.volume,.dialog-actions,.dialog-head{align-items:center;gap:8px;display:flex}.topbar__right{justify-content:flex-end}.now-playing{text-align:center;min-width:0}.now-playing span,.now-playing small{text-overflow:ellipsis;white-space:nowrap;display:block;overflow:hidden}.now-playing span{color:var(--ink);font-weight:750}.now-playing small{color:var(--muted);margin-top:2px;font-size:12px}.button,.icon-button,.play-button,.mode-button{min-height:38px;color:var(--ink);border:1px solid var(--line);cursor:pointer;background:#fff;border-radius:8px;justify-content:center;align-items:center;gap:8px;transition:transform .16s,border-color .16s,background .16s,color .16s;display:inline-flex}.button{padding:0 14px;font-weight:700}.button--primary,.play-button{color:#fff;background:var(--blue);border-color:var(--blue)}.button:hover,.icon-button:hover,.mode-button:hover{background:var(--panel-soft);border-color:#b9c5d8}.button--primary:hover,.play-button:hover{background:var(--blue-strong);border-color:var(--blue-strong)}.button:active,.icon-button:active,.play-button:active,.mode-button:active{transform:translateY(1px)}.icon-button{width:38px;padding:0}.play-button{border-radius:50%;width:50px;height:50px}.mode-button{min-width:112px;padding:0 12px}.workspace{min-height:0;display:flex}.sidebar{border-right:1px solid var(--line);background:#ffffffdb;grid-template-rows:auto auto minmax(0,1fr);width:294px;min-width:294px;transition:width .2s,min-width .2s,opacity .2s;display:grid;overflow:hidden}.sidebar--collapsed{opacity:0;border-right:0;width:0;min-width:0}.sidebar__head{justify-content:space-between;align-items:center;padding:16px 16px 10px;display:flex}.sidebar__head strong{font-size:15px}.sidebar__head span{color:var(--subtle);font-size:12px}.search-box{min-height:38px;color:var(--muted);background:var(--panel-soft);border:1px solid #0000;border-radius:8px;align-items:center;gap:8px;margin:0 14px 12px;padding:0 10px;display:flex}.search-box:focus-within{background:#fff;border-color:#2367d861}.search-box input{width:100%;min-width:0;color:var(--ink);background:0 0;border:0;outline:0}.track-list{padding:4px 10px 14px;overflow:auto}.track-row{width:100%;color:var(--ink);text-align:left;cursor:pointer;background:0 0;border-radius:8px;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:8px;margin-bottom:6px;padding:10px;display:grid}.track-row:hover{background:var(--panel-soft)}.track-row--active{color:#fff;background:linear-gradient(135deg, var(--blue), #2f9e83)}.track-row--active:hover{background:linear-gradient(135deg, var(--blue-strong), #24866f)}.track-row span{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.track-row small{color:inherit;opacity:.74;font-size:12px}.empty-state{color:var(--muted);text-align:center;padding:26px 14px;line-height:1.6}.stage{flex:1;min-width:0;min-height:0;position:relative;overflow:hidden}.lyrics-panel,.board-panel{position:absolute;inset:0}.lyrics-panel{padding:26px clamp(16px,4vw,64px);transition:opacity .2s,transform .2s;overflow:auto}.lyrics-panel--hidden{opacity:0;pointer-events:none;transform:translateY(12px)}.lyrics{width:min(820px,100%);margin:0 auto;padding:18px 0 42px}.lyric-line{color:#556070;text-align:center;cursor:pointer;background:0 0;border-radius:8px;width:100%;margin:4px 0;padding:9px 12px;line-height:1.65;display:block}.lyric-line:hover{color:var(--ink);background:#ffffffbd}.lyric-line--active{color:#fff;background:var(--blue);box-shadow:0 12px 24px #2367d833}.lyrics-empty,.board-empty{min-height:100%;color:var(--muted);text-align:center;flex-direction:column;justify-content:center;align-items:center;gap:10px;display:flex}.board-panel{background:#fff;justify-content:center;align-items:center;display:none;overflow:hidden}.board-panel--open{display:flex}.board-panel:before{content:"";background-image:var(--board-image);filter:blur(24px)saturate(.95);opacity:.32;background-position:50%;background-size:cover;position:absolute;inset:0;transform:scale(1.08)}.board-panel--drag{outline:2px dashed var(--blue);outline-offset:-8px}.board-panel img{z-index:1;object-fit:contain;width:100%;height:100%;position:relative}.board-tools{z-index:2;border:1px solid var(--line);box-shadow:var(--shadow);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#ffffffdb;border-radius:999px;gap:8px;padding:6px;display:flex;position:absolute;top:14px;right:14px}.player-bar{border-top:1px solid var(--line);grid-template-columns:310px minmax(180px,1fr) 220px}.timeline,.volume{align-items:center;gap:10px;min-width:0;display:flex}.timeline span{width:48px;color:var(--muted);text-align:center;font-size:13px}input[type=range]{width:100%;accent-color:var(--blue)}.modal-backdrop{z-index:20;background:#17203347;place-items:center;display:grid;position:fixed;inset:0}.image-dialog{width:min(520px,100vw - 32px);color:var(--ink);border:1px solid var(--line);box-shadow:var(--shadow);background:#fff;border-radius:8px;padding:0}.dialog-head{border-bottom:1px solid var(--line);justify-content:space-between;padding:14px 16px}.dialog-body{padding:16px}.dialog-body label{color:var(--muted);gap:8px;font-size:13px;display:grid}.dialog-body input{width:100%;min-height:40px;color:var(--ink);border:1px solid var(--line);border-radius:8px;outline:0;padding:0 10px}.dialog-body input:focus{border-color:#2367d880}.dialog-actions{justify-content:flex-end;padding:12px 16px 16px}.mobile-sidebar-toggle{display:none}@media (width<=860px){.app-shell{grid-template-rows:auto minmax(0,1fr) auto}.topbar{grid-template-columns:1fr auto;grid-template-areas:"left right""title title"}.topbar__left{grid-area:left;min-width:0}.topbar__right{grid-area:right}.now-playing{text-align:left;grid-area:title}.button--primary{max-width:196px}.button--primary span,.mode-button span{display:none}.sidebar{z-index:8;width:min(86vw,310px);min-width:min(86vw,310px);box-shadow:var(--shadow);position:absolute;inset:0 auto 0 0}.sidebar--collapsed{transform:translate(-100%)}.player-bar{grid-template-columns:1fr;gap:10px}.transport{justify-content:center}.volume{display:none}.mobile-sidebar-toggle{z-index:10;width:36px;height:36px;color:var(--ink);border:1px solid var(--line);box-shadow:var(--shadow);background:#fff;border-radius:50%;justify-content:center;align-items:center;display:inline-flex;position:fixed;bottom:100px;left:10px}}