:root{--bg: #ffffff;--text: #111827;--muted: #6b7280;--card: #f3f4f6;--border: #e5e7eb;--primary: #1e90ff;--danger: #ef4444}:root[data-theme=dark]{--bg: #0b1220;--text: #e5e7eb;--muted: #9ca3af;--card: #111827;--border: #1f2937;--primary: #60a5fa;--danger: #f87171}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Noto Sans,Arial,PingFang SC,Microsoft YaHei,sans-serif}.app{display:flex;flex-direction:column;min-height:100%;max-width:1200px;margin:0 auto;padding:16px;gap:16px}.app-header{display:flex;align-items:center;justify-content:space-between;gap:12px}.brand{display:flex;align-items:center;gap:12px}.logo{width:40px;height:40px;background:var(--primary);color:#fff;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;font-weight:700}.titles h1{margin:0;font-size:20px}.subtitle{margin:2px 0 0;color:var(--muted);font-size:12px}.actions{display:flex;align-items:center;gap:8px}.loop{color:var(--muted);display:flex;align-items:center;gap:6px}.add-box{display:flex;gap:8px}.url-input{flex:1;padding:10px 12px;border:1px solid var(--border);background:var(--card);color:var(--text);border-radius:8px;outline:none}.url-input:focus{border-color:var(--primary);box-shadow:0 0 0 2px color-mix(in oklab,var(--primary) 20%,transparent)}button{padding:10px 12px;border-radius:8px;border:1px solid var(--border);background:var(--card);color:var(--text);cursor:pointer}button.primary{background:var(--primary);color:#fff;border-color:transparent}button.danger{background:var(--danger);color:#fff;border-color:transparent}button.theme-toggle{min-width:88px}.error{color:#ef4444;background:color-mix(in oklab,var(--danger) 10%,transparent);border:1px solid color-mix(in oklab,var(--danger) 30%,transparent);padding:8px 10px;border-radius:8px}.success{color:#10b981;background:color-mix(in oklab,#10b981 10%,transparent);border:1px solid color-mix(in oklab,#10b981 30%,transparent);padding:8px 10px;border-radius:8px}.main{display:grid;grid-template-columns:1.5fr 1fr;gap:16px}@media (max-width: 980px){.main{grid-template-columns:1fr}}.player-panel,.list-panel{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:12px}.player{display:flex;flex-direction:column;gap:8px}.player-header{display:flex;align-items:center;justify-content:space-between;gap:8px}.player-header .title{font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.video{width:100%;aspect-ratio:16/9;background:#000;border-radius:8px}.player-empty,.empty{color:var(--muted)}.list-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;padding-bottom:8px;border-bottom:1px solid var(--border)}.list-header h3{margin:0;font-size:16px}.list-actions{display:flex;gap:6px}.share-btn,.clear-btn{padding:6px 12px;font-size:14px}.share-btn{background:var(--primary);color:#fff;border-color:transparent}.share-btn:hover:not(:disabled){opacity:.9}.clear-btn:hover:not(:disabled){background:var(--danger);color:#fff;border-color:transparent}button:disabled{opacity:.5;cursor:not-allowed}.playlist{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.playlist li{display:grid;grid-template-columns:120px 1fr auto;gap:10px;align-items:center;padding:6px;border-radius:8px}.playlist li.active{outline:2px solid var(--primary);background:color-mix(in oklab,var(--primary) 10%,transparent)}.playlist .thumb{width:120px;height:68px;padding:0;overflow:hidden;border-radius:8px}.playlist .thumb img,.playlist .thumb .placeholder{width:100%;height:100%;object-fit:cover;background:#000;display:block}.playlist .meta{cursor:pointer}.playlist .title{font-weight:600;line-height:1.3}.playlist .sub{color:var(--muted);display:flex;gap:6px;align-items:center}.playlist .dot{opacity:.6}.playlist .ops{display:flex;gap:6px}.footer{color:var(--muted);text-align:center}.settings-toggle-btn{background:var(--card);border:1px solid var(--border);padding:10px 12px;border-radius:8px;cursor:pointer;color:var(--text);display:flex;align-items:center;justify-content:center;transition:all .2s}.settings-toggle-btn:hover{background:var(--border)}.settings-panel{background:var(--card);border:1px solid var(--border);border-radius:16px;max-width:500px;width:100%;box-shadow:0 20px 60px #0000004d;animation:slideUp .3s ease;max-height:80vh;overflow-y:auto}.settings-header{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:1px solid var(--border);position:sticky;top:0;background:var(--card);z-index:1}.settings-header h2{margin:0;font-size:20px;color:var(--text)}.close-btn{background:none;border:none;color:var(--muted);cursor:pointer;padding:4px;display:flex;align-items:center;justify-content:center;border-radius:6px;transition:all .2s}.close-btn:hover{background:var(--border);color:var(--text)}.settings-content{padding:24px}.setting-item{display:flex;align-items:center;justify-content:space-between;padding:16px 0;border-bottom:1px solid var(--border)}.setting-item:last-child{border-bottom:none}.setting-label{display:flex;align-items:center;gap:12px;font-size:15px;color:var(--text);font-weight:500}.setting-control{display:flex;align-items:center;gap:8px}.theme-btn{background:var(--card);border:1px solid var(--border);padding:8px 14px;border-radius:8px;cursor:pointer;color:var(--text);display:flex;align-items:center;gap:6px;font-size:14px;transition:all .2s}.theme-btn:hover{background:var(--border)}.theme-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}.switch{position:relative;display:inline-block;width:48px;height:26px}.switch input{opacity:0;width:0;height:0}.slider{position:absolute;cursor:pointer;top:0;left:0;right:0;bottom:0;background-color:var(--border);transition:.3s;border-radius:26px}.slider:before{position:absolute;content:"";height:18px;width:18px;left:4px;bottom:4px;background-color:#fff;transition:.3s;border-radius:50%}input:checked+.slider{background-color:var(--primary)}input:checked+.slider:before{transform:translate(22px)}.volume-control{display:flex;align-items:center;gap:10px;width:100%}.volume-slider{flex:1;height:6px;border-radius:3px;background:var(--border);outline:none;-webkit-appearance:none}.volume-slider::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:16px;height:16px;border-radius:50%;background:var(--primary);cursor:pointer;transition:all .2s}.volume-slider::-webkit-slider-thumb:hover{transform:scale(1.2)}.volume-slider::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:var(--primary);cursor:pointer;border:none;transition:all .2s}.volume-slider::-moz-range-thumb:hover{transform:scale(1.2)}.volume-value{min-width:45px;text-align:right;font-size:14px;color:var(--muted);font-weight:500}.volume-icon{font-size:18px}.timer-control{display:flex;align-items:center;gap:8px}.timer-input{width:60px;padding:6px 10px;border:1px solid var(--border);background:var(--card);color:var(--text);border-radius:6px;text-align:center;font-size:14px}.timer-input:focus{outline:none;border-color:var(--primary)}.timer-btn{padding:6px 14px;background:var(--primary);color:#fff;border:none;border-radius:6px;cursor:pointer;font-size:14px;transition:all .2s}.timer-btn:hover{opacity:.9}.timer-btn.cancel{background:var(--danger)}.timer-display{font-size:16px;font-weight:600;color:var(--primary);min-width:60px;text-align:center}.setting-note{margin-top:16px;padding:12px;background:color-mix(in oklab,var(--primary) 10%,transparent);border-radius:8px;color:var(--muted);font-size:13px}.player-controls{display:flex;align-items:center;gap:12px;padding:12px;background:var(--card);border-radius:8px;border:1px solid var(--border)}.player-controls .volume-control{flex:1}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px;animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}