:root{--bg:#ffffff;--surface:#f5f6f8;--fg:#15171c;--muted:#6b7280;--border:#e6e8eb;--accent:#2563eb;--weak:#eaf0fe;--on-accent:#ffffff}[data-theme=dark]{--bg:#0f1216;--surface:#171b21;--fg:#e8eaee;--muted:#99a1ad;--border:#272c34;--accent:#6ea8ff;--weak:#1a2640;--on-accent:#0f1216}@media (prefers-color-scheme:dark){:root:not([data-theme]){--bg:#0f1216;--surface:#171b21;--fg:#e8eaee;--muted:#99a1ad;--border:#272c34;--accent:#6ea8ff;--weak:#1a2640;--on-accent:#0f1216}}*{box-sizing:border-box}html{color-scheme:light dark}body{margin:0;background:var(--bg);color:var(--fg);font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5;-webkit-tap-highlight-color:transparent}a{text-decoration:none}a,button{color:inherit}button{font:inherit;cursor:pointer}.topbar{position:-webkit-sticky;position:sticky;top:0;z-index:20;display:flex;justify-content:space-between;gap:12px;padding:12px 16px;background:color-mix(in srgb,var(--bg) 88%,transparent);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}.brand,.topbar{align-items:center}.brand{font-size:17px;font-weight:600;display:inline-flex;gap:8px}.brand .dot{color:var(--accent)}.container{max-width:640px;margin:0 auto;padding:16px}.with-nav{padding-bottom:80px}.muted{color:var(--muted)}.iconbtn{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:10px;border:1px solid var(--border);background:var(--bg);color:var(--fg)}.iconbtn:hover{background:var(--surface)}.bottomnav{position:fixed;left:0;right:0;bottom:0;z-index:20;display:flex;background:color-mix(in srgb,var(--bg) 92%,transparent);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-top:1px solid var(--border)}.bottomnav a{flex:1 1;display:flex;flex-direction:column;align-items:center;gap:3px;padding:9px 0 11px;font-size:11px;color:var(--muted)}.bottomnav a.active{color:var(--accent)}.search{display:flex;align-items:center;gap:8px;padding:10px 12px;background:var(--surface);border:1px solid var(--border);border-radius:12px;margin:4px 0 14px}.search input{flex:1 1;border:none;background:transparent;color:var(--fg);font-size:15px;outline:none}.chips{display:flex;gap:8px;overflow-x:auto;padding-bottom:12px;scrollbar-width:none}.chips::-webkit-scrollbar{display:none}.chip{position:relative;flex:0 0 auto;font-size:13px;padding:5px 12px;border-radius:999px;border:1px solid var(--border);color:var(--muted);background:var(--bg);white-space:nowrap}.chip.active{color:var(--accent);border-color:transparent}.chip-ind{position:absolute;inset:0;border-radius:999px;background:var(--weak);z-index:0}.chip-label{position:relative;z-index:1}.songlist{list-style:none;margin:0;padding:0}.songrow{display:flex;align-items:center;gap:12px;padding:12px 6px;border-top:1px solid var(--border)}.songrow .link{flex:1 1;display:flex;align-items:baseline;gap:12px;min-width:0}.songrow .num{flex:0 0 auto;min-width:34px;font-size:13px;color:var(--muted);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.songrow .name{font-size:15px;min-width:0}.songrow .eng{font-size:13px;color:var(--muted)}.count{font-size:13px;margin:0 0 8px}.fav{flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;border:none;background:transparent;color:var(--muted)}.fav.on{color:var(--accent)}.songhead{display:flex;align-items:center;gap:10px;margin-bottom:12px}.songhead .back{flex:0 0 auto;color:var(--muted);display:inline-flex}.songhead h1{flex:1 1;font-size:19px;font-weight:600;margin:0;line-height:1.25}.songhead .eng{font-size:13px;color:var(--muted);font-weight:400}.player{display:flex;align-items:center;gap:10px;margin:6px 0 14px;padding:8px 12px 8px 8px;background:var(--surface);border:1px solid var(--border);border-radius:14px}.aplay{width:38px;height:38px;border-radius:11px;border:none;background:var(--accent);color:var(--on-accent)}.amute,.aplay{flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center}.amute{width:32px;height:32px;border-radius:9px;border:none;background:transparent}.amute,.atime{color:var(--muted)}.atime{flex:0 0 auto;font-size:12px;font-feature-settings:"tnum";font-variant-numeric:tabular-nums;min-width:34px;text-align:center}.aseek{flex:1 1;min-width:0;height:4px;-webkit-appearance:none;-moz-appearance:none;appearance:none;border-radius:999px;background:linear-gradient(to right,var(--accent) var(--pct,0),var(--border) var(--pct,0));cursor:pointer}.aseek::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:14px;height:14px;border-radius:50%;background:var(--accent);border:2px solid var(--bg);box-shadow:0 0 0 1px var(--border)}.aseek::-moz-range-thumb{width:14px;height:14px;border-radius:50%;background:var(--accent);border:2px solid var(--bg);box-shadow:0 0 0 1px var(--border)}.aseek::-moz-range-track{height:4px;border-radius:999px;background:transparent}.settingsbar{display:flex;align-items:center;gap:10px;margin-bottom:14px}.settingstoggle{display:inline-flex;align-items:center;gap:7px;font-size:13px;padding:7px 13px;border-radius:10px;border:1px solid var(--border);background:var(--bg);color:var(--muted)}.settingstoggle.on{background:var(--weak);color:var(--accent);border-color:transparent}.settingskey{font-size:13px;color:var(--muted)}.panel{position:-webkit-sticky;position:sticky;top:62px;z-index:10;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:10px 12px;flex-direction:column;margin-bottom:14px}.panel,.prow{display:flex;gap:10px}.prow{align-items:center;justify-content:space-between;flex-wrap:wrap}.plabel{font-size:12px;color:var(--muted)}.stepper{gap:8px}.stepbtn,.stepper{display:inline-flex;align-items:center}.stepbtn{width:30px;height:30px;border-radius:9px;border:1px solid var(--border);background:var(--bg);color:var(--fg);justify-content:center}.stepbtn:disabled{opacity:.4;cursor:default}.keyval{font-size:17px;font-weight:600;color:var(--accent);min-width:30px}.keyval,.stepval{text-align:center}.stepval{font-size:14px;min-width:42px;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.tools{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.seg{display:inline-flex;border:1px solid var(--border);border-radius:9px;overflow:hidden}.seg button{border:none;background:var(--bg);color:var(--muted);font-size:13px;padding:5px 11px}.seg button.on{background:var(--accent);color:var(--on-accent)}.pill{display:inline-flex;align-items:center;gap:6px;font-size:13px;padding:5px 11px;border-radius:9px;border:1px solid var(--border);background:var(--bg);color:var(--muted)}.pill.on{background:var(--weak);color:var(--accent);border-color:transparent}.asrow{display:flex;gap:10px;border-top:1px solid var(--border);padding-top:10px}.asplay,.asrow{align-items:center}.asplay{flex:0 0 auto;width:30px;height:30px;border-radius:9px;border:none;background:var(--accent);color:var(--on-accent);display:inline-flex;justify-content:center}.asplay.idle{background:var(--bg);color:var(--fg);border:1px solid var(--border)}.chordsheet{font-size:var(--cs-fs,15px);line-height:1.3;overflow-x:auto}.cs-pair{margin-bottom:6px}.cs-chordline{color:var(--accent);font-weight:600;min-height:1.1em}.cs-chordline,.cs-lyric,.cs-textline{white-space:pre}.cs-textline{font-weight:500;margin-bottom:6px}.cs-blank{height:.7em}.chordsheet.lyrics-only .cs-pair{margin-bottom:2px}.meta{margin-top:22px;padding-top:14px;border-top:1px solid var(--border);font-size:14px}.meta p{margin:5px 0}.meta a{margin-right:10px}.meta a,.tag{color:var(--accent)}.tag{display:inline-block;background:var(--weak);font-size:12px;padding:3px 10px;border-radius:999px;margin:6px 6px 0 0}.copyright{margin-top:22px;padding-top:14px;border-top:1px solid var(--border);font-size:12px}.copyright,.empty{color:var(--muted)}.empty{text-align:center;padding:48px 16px;font-size:15px}.sync-form{display:flex;gap:8px;margin:16px 0;flex-wrap:wrap}.sync-form input{flex:1 1;min-width:200px;padding:10px 12px;border:1px solid var(--border);border-radius:10px;background:var(--surface);color:var(--fg);font-size:15px}.sync-btn{display:inline-flex;align-items:center;gap:8px;padding:10px 16px;border:1px solid transparent;border-radius:10px;background:var(--accent);color:var(--on-accent);font-size:15px}.sync-btn:disabled{opacity:.5;cursor:default}.sync-error{color:#dc2626;font-size:14px}[data-theme=dark] .sync-error{color:#f87171}.sync-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));grid-gap:10px;gap:10px;margin:12px 0 8px}.sync-cell{background:var(--surface);border-radius:10px;padding:12px;display:flex;flex-direction:column;gap:2px}.sync-num{font-size:22px;font-weight:600}.sync-lab{font-size:12px;color:var(--muted)}.spin{animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}.gate{max-width:320px;margin:12vh auto 0;display:flex;flex-direction:column;gap:10px}.gate input{padding:10px 12px;border:1px solid var(--border);border-radius:10px;background:var(--surface);color:var(--fg);font-size:15px}.adm-top{display:flex;align-items:center;justify-content:space-between;gap:12px}.adm-logout{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--muted);background:transparent;border:1px solid var(--border);border-radius:9px;padding:6px 10px}.adm-diff{margin-top:14px}.adm-sec{margin:14px 0}.adm-sec-head{display:flex;align-items:center;justify-content:space-between;font-size:14px;font-weight:500;margin-bottom:6px}.adm-link{background:transparent;border:none;color:var(--accent);font-size:13px;padding:2px 4px}.adm-list{max-height:230px;overflow-y:auto;border:1px solid var(--border);border-radius:10px}.adm-item{display:flex;align-items:center;gap:10px;padding:7px 10px;border-top:1px solid var(--border);font-size:14px;cursor:pointer}.adm-item:first-child{border-top:none}.adm-num{color:var(--muted);font-feature-settings:"tnum";font-variant-numeric:tabular-nums;min-width:42px}.adm-name{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.adm-toggle{gap:8px;font-size:14px;margin:12px 0}.adm-actions,.adm-toggle{display:flex;align-items:center}.adm-actions{gap:14px;margin-top:16px}.adm-progress{display:flex;align-items:center;gap:10px;margin-top:12px}.adm-progress-bar{flex:1 1;height:8px;border-radius:999px;background:var(--surface);overflow:hidden}.adm-progress-fill{height:100%;background:var(--accent);border-radius:999px;transition:width .25s ease}.adm-progress-lab{flex:0 0 auto;font-size:13px;color:var(--muted);font-feature-settings:"tnum";font-variant-numeric:tabular-nums}