:root{--bg-primary:#0a0a0f;--bg-secondary:#12121a;--bg-card:#1a1a2e;--bg-hover:#252540;--text-primary:#fff;--text-secondary:#a0a0b8;--text-muted:#6a6a80;--accent:#6c5ce7;--accent-light:#a29bfe;--accent-glow:#6c5ce74d;--success:#00b894;--warning:#fdcb6e;--danger:#e17055;--border:#2a2a40;--gradient-1:linear-gradient(135deg, #6c5ce7, #a29bfe);--gradient-2:linear-gradient(135deg, #e17055, #fdcb6e);--gradient-3:linear-gradient(135deg, #00b894, #55efc4);--shadow:0 8px 32px #0000004d;--shadow-sm:0 2px 8px #0003;--radius:16px;--radius-sm:8px;--radius-xs:4px}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg-primary);color:var(--text-primary);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;font-size:16px;line-height:1.6;overflow-x:hidden}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--accent)}#root{flex-direction:column;min-height:100vh;display:flex}button{cursor:pointer;border:none;outline:none;font-family:inherit}input,select{font-family:inherit}.app{background:var(--bg-primary);flex-direction:column;min-height:100vh;display:flex}.app-main{flex:1;width:100%;max-width:1200px;margin:0 auto;padding:20px 20px 120px}.header{background:var(--bg-secondary);border-bottom:1px solid var(--border);z-index:100;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);justify-content:space-between;align-items:center;padding:16px 24px;display:flex;position:sticky;top:0}.header-logo{color:var(--text-primary);align-items:center;gap:12px;font-size:20px;font-weight:700;display:flex}.header-logo-icon{background:var(--gradient-1);border-radius:10px;justify-content:center;align-items:center;width:36px;height:36px;font-size:18px;display:flex}.header-nav{background:var(--bg-card);border-radius:12px;gap:4px;padding:4px;display:flex}.header-nav-btn{color:var(--text-secondary);white-space:nowrap;background:0 0;border-radius:8px;padding:8px 16px;font-size:14px;font-weight:500;transition:all .2s}.header-nav-btn:hover{color:var(--text-primary);background:var(--bg-hover)}.header-nav-btn.active{background:var(--accent);color:#fff}.header-saved-count{background:var(--accent);color:#fff;border-radius:10px;margin-left:6px;padding:2px 6px;font-size:11px;font-weight:600}.mood-selector{margin-bottom:32px}.mood-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px;margin-top:16px;display:grid}.mood-card{background:var(--bg-card);border-radius:var(--radius);text-align:center;cursor:pointer;border:2px solid #0000;flex-direction:column;align-items:center;gap:8px;padding:20px 16px;transition:all .3s;display:flex}.mood-card:hover{background:var(--bg-hover);transform:translateY(-2px)}.mood-card.selected{border-color:var(--accent);box-shadow:0 0 20px var(--accent-glow);background:#6c5ce71a}.mood-card .emoji{font-size:32px}.mood-card .label{font-size:15px;font-weight:600}.mood-card .desc{color:var(--text-muted);font-size:12px}.activity-grid{grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:12px;margin-top:16px;display:grid}.activity-card{background:var(--bg-card);border-radius:var(--radius);text-align:center;cursor:pointer;border:2px solid #0000;flex-direction:column;align-items:center;gap:8px;padding:20px 16px;transition:all .3s;display:flex}.activity-card:hover{background:var(--bg-hover);transform:translateY(-2px)}.activity-card.selected{border-color:var(--accent);box-shadow:0 0 20px var(--accent-glow);background:#6c5ce71a}.activity-card .emoji{font-size:32px}.activity-card .label{font-size:15px;font-weight:600}.filter-section{margin-bottom:32px}.filter-row{flex-wrap:wrap;gap:16px;margin-top:12px;display:flex}.filter-group{flex-direction:column;flex:1;gap:8px;min-width:200px;display:flex}.filter-label{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;font-size:13px;font-weight:600}.filter-chips{flex-wrap:wrap;gap:8px;display:flex}.filter-chip{background:var(--bg-card);color:var(--text-secondary);border:1px solid #0000;border-radius:20px;padding:6px 14px;font-size:13px;font-weight:500;transition:all .2s}.filter-chip:hover{background:var(--bg-hover);color:var(--text-primary)}.filter-chip.selected{background:var(--accent);color:#fff;border-color:var(--accent)}.generate-btn{border-radius:var(--radius);background:var(--gradient-1);color:#fff;letter-spacing:.5px;justify-content:center;align-items:center;gap:8px;width:100%;margin-top:24px;padding:16px;font-size:16px;font-weight:700;transition:all .3s;display:flex}.generate-btn:hover{box-shadow:0 8px 25px var(--accent-glow);transform:translateY(-2px)}.generate-btn:active{transform:translateY(0)}.song-list{margin-top:24px}.song-list-header{justify-content:space-between;align-items:center;margin-bottom:16px;display:flex}.song-list-header h3{font-size:20px;font-weight:700}.song-count{color:var(--text-muted);background:var(--bg-card);border-radius:12px;padding:4px 12px;font-size:13px}.song-item{background:var(--bg-card);border-radius:var(--radius-sm);cursor:pointer;border:1px solid #0000;align-items:center;gap:14px;margin-bottom:8px;padding:12px 16px;transition:all .2s;display:flex}.song-item:hover{background:var(--bg-hover);border-color:var(--border)}.song-item.playing{border-color:var(--accent);background:#6c5ce71a}.song-item.playing .song-title{color:var(--accent-light)}.song-number{color:var(--text-muted);text-align:center;width:24px;font-size:14px;font-weight:500}.song-cover{object-fit:cover;background:var(--bg-hover);border-radius:8px;width:48px;height:48px}.song-info{flex:1;min-width:0}.song-title{white-space:nowrap;text-overflow:ellipsis;font-size:14px;font-weight:600;overflow:hidden}.song-artist{color:var(--text-secondary);white-space:nowrap;text-overflow:ellipsis;font-size:12px;overflow:hidden}.song-meta{align-items:center;gap:12px;display:flex}.song-duration{color:var(--text-muted);font-variant-numeric:tabular-nums;font-size:12px}.song-bpm{color:var(--accent-light);background:#6c5ce726;border-radius:8px;padding:2px 8px;font-size:11px}.song-energy{border-radius:50%;width:8px;height:8px}.song-energy.high{background:#e17055}.song-energy.medium{background:#fdcb6e}.song-energy.low{background:#00b894}.song-play-btn{background:var(--accent);color:#fff;opacity:0;border-radius:50%;justify-content:center;align-items:center;width:36px;height:36px;font-size:14px;transition:all .2s;display:flex}.song-item:hover .song-play-btn,.song-item.playing .song-play-btn{opacity:1}.player-bar{background:var(--bg-secondary);border-top:1px solid var(--border);z-index:200;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);align-items:center;gap:20px;padding:12px 24px;display:flex;position:fixed;bottom:0;left:0;right:0}.player-cover{object-fit:cover;background:var(--bg-hover);border-radius:8px;flex-shrink:0;width:56px;height:56px}.player-info{flex:0 0 200px;min-width:0}.player-song-title{white-space:nowrap;text-overflow:ellipsis;font-size:14px;font-weight:600;overflow:hidden}.player-song-artist{color:var(--text-secondary);white-space:nowrap;text-overflow:ellipsis;font-size:12px;overflow:hidden}.player-controls{flex:1;justify-content:center;align-items:center;gap:16px;display:flex}.player-btn{width:36px;height:36px;color:var(--text-secondary);background:0 0;border-radius:50%;justify-content:center;align-items:center;font-size:18px;transition:all .2s;display:flex}.player-btn:hover{color:var(--text-primary);background:var(--bg-hover)}.player-btn-main{width:44px;height:44px;font-size:20px;background:var(--accent)!important;color:#fff!important}.player-btn-main:hover{transform:scale(1.05);background:var(--accent-light)!important}.player-progress{align-items:center;gap:8px;width:100%;max-width:400px;display:flex}.player-time{color:var(--text-muted);font-variant-numeric:tabular-nums;min-width:35px;font-size:11px}.progress-bar{background:var(--bg-hover);cursor:pointer;border-radius:2px;flex:1;height:4px;position:relative}.progress-fill{background:var(--accent);border-radius:2px;height:100%;transition:width .1s linear;position:relative}.progress-fill:after{content:"";background:var(--accent-light);opacity:0;border-radius:50%;width:10px;height:10px;transition:opacity .2s;position:absolute;top:-3px;right:-4px}.progress-bar:hover .progress-fill:after{opacity:1}.player-volume{flex:0 0 150px;align-items:center;gap:8px;display:flex}.volume-icon{color:var(--text-secondary);cursor:pointer;background:0 0;font-size:16px}.volume-slider{-webkit-appearance:none;background:var(--bg-hover);border-radius:2px;outline:none;width:80px;height:4px}.volume-slider::-webkit-slider-thumb{-webkit-appearance:none;background:var(--accent);cursor:pointer;border-radius:50%;width:12px;height:12px}.section-title{align-items:center;gap:10px;margin-bottom:16px;font-size:18px;font-weight:700;display:flex}.section-title .icon{font-size:22px}.playlist-card{background:var(--bg-card);border-radius:var(--radius);border:1px solid var(--border);margin-bottom:16px;padding:20px;transition:all .2s}.playlist-card:hover{border-color:var(--accent)}.playlist-card-header{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}.playlist-card-title{font-size:16px;font-weight:700}.playlist-card-actions{gap:8px;display:flex}.btn-small{border-radius:var(--radius-sm);padding:6px 12px;font-size:12px;font-weight:600;transition:all .2s}.btn-save{background:var(--accent);color:#fff}.btn-save:hover{background:var(--accent-light)}.btn-save.saved{background:var(--success)}.btn-share{background:var(--bg-hover);color:var(--text-secondary)}.btn-share:hover{color:var(--text-primary)}.btn-delete{color:var(--danger);background:0 0;font-size:12px}.btn-delete:hover{background:#e170551a}.discovery-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px;display:grid}.discovery-card{background:var(--bg-card);border-radius:var(--radius);border:1px solid var(--border);padding:20px;transition:all .2s}.discovery-card:hover{border-color:var(--accent);transform:translateY(-2px)}.discovery-card h4{align-items:center;gap:8px;margin-bottom:12px;font-size:15px;display:flex}.artist-suggestion{border-bottom:1px solid var(--border);align-items:center;gap:10px;padding:8px 0;display:flex}.artist-suggestion:last-child{border-bottom:none}.artist-dot{background:var(--gradient-1);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;font-size:12px;font-weight:700;display:flex}.artist-name{font-size:13px;font-weight:500}.artist-reason{color:var(--text-muted);font-size:11px}.theme-grid{grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px;display:grid}.theme-card{background:var(--bg-card);border-radius:var(--radius);text-align:center;cursor:pointer;border:2px solid #0000;padding:24px 16px;transition:all .3s}.theme-card:hover{border-color:var(--border);transform:translateY(-2px)}.theme-card.selected{border-color:var(--accent);background:#6c5ce71a}.theme-card .emoji{margin-bottom:8px;font-size:40px}.theme-card .label{font-size:14px;font-weight:600}.library-grid{grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px;display:grid}.library-card{background:var(--bg-card);border-radius:var(--radius);border:1px solid var(--border);cursor:pointer;padding:20px;transition:all .2s}.library-card:hover{border-color:var(--accent);transform:translateY(-2px)}.library-card-header{align-items:center;gap:12px;margin-bottom:12px;display:flex}.library-card-icon{border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;width:44px;height:44px;font-size:22px;display:flex}.library-card-title{font-size:15px;font-weight:700}.library-card-count{color:var(--text-muted);font-size:12px}.library-card-songs{color:var(--text-secondary);font-size:12px;line-height:1.8}.library-card-footer{border-top:1px solid var(--border);justify-content:flex-end;gap:8px;margin-top:12px;padding-top:12px;display:flex}.custom-rules{background:var(--bg-card);border-radius:var(--radius);margin-top:16px;padding:24px}.custom-rules h4{margin-bottom:16px;font-size:16px}.rule-grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px;display:grid}.rule-item{flex-direction:column;gap:6px;display:flex}.rule-item label{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;font-size:12px;font-weight:600}.rule-item input[type=range]{-webkit-appearance:none;background:var(--bg-hover);border-radius:2px;outline:none;width:100%;height:4px}.rule-item input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;background:var(--accent);cursor:pointer;border-radius:50%;width:14px;height:14px}.rule-item select{background:var(--bg-hover);color:var(--text-primary);border:1px solid var(--border);border-radius:var(--radius-sm);padding:8px 12px;font-size:13px}.rule-value{color:var(--accent-light);text-align:right;font-size:12px}.modal-overlay{z-index:300;background:#000000b3;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal{background:var(--bg-secondary);border-radius:var(--radius);border:1px solid var(--border);width:100%;max-width:480px;padding:32px}.modal h3{margin-bottom:16px;font-size:20px}.modal-close{float:right;color:var(--text-secondary);background:0 0;font-size:20px}.share-options{flex-wrap:wrap;gap:12px;margin:16px 0;display:flex}.share-btn{border-radius:var(--radius-sm);color:#fff;align-items:center;gap:8px;padding:10px 16px;font-size:13px;font-weight:600;transition:transform .2s;display:flex}.share-btn:hover{transform:scale(1.05)}.share-btn.twitter{background:#1da1f2}.share-btn.facebook{background:#4267b2}.share-btn.copy{background:var(--accent)}.share-link{gap:8px;margin-top:16px;display:flex}.share-link input{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-sm);color:var(--text-primary);flex:1;padding:10px 12px;font-size:13px}.share-link button{background:var(--accent);color:#fff;border-radius:var(--radius-sm);padding:10px 16px;font-size:13px;font-weight:600}.empty-state{text-align:center;color:var(--text-muted);padding:60px 20px}.empty-state .icon{margin-bottom:16px;font-size:48px}.empty-state h3{color:var(--text-secondary);margin-bottom:8px;font-size:18px}.empty-state p{font-size:14px}.genre-badge{color:#fff;border-radius:8px;padding:2px 8px;font-size:10px;font-weight:600;display:inline-block}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.fade-in{animation:.3s fadeIn}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.playing-indicator{align-items:center;gap:2px;height:16px;display:flex}.playing-indicator span{background:var(--accent);border-radius:1px;width:3px;height:100%;animation:.8s infinite pulse;display:block}.playing-indicator span:nth-child(2){animation-delay:.2s}.playing-indicator span:nth-child(3){animation-delay:.4s}@media (width<=768px){.app-main{padding:12px 12px 100px}.header{flex-wrap:wrap;gap:8px;padding:12px 16px}.header-nav{width:100%;overflow-x:auto}.header-nav-btn{padding:6px 12px;font-size:13px}.mood-grid,.activity-grid{grid-template-columns:repeat(auto-fill,minmax(120px,1fr))}.player-bar{flex-wrap:wrap;gap:10px;padding:10px 12px}.player-info{flex:none;min-width:0;max-width:120px}.player-volume{display:none}.player-progress{flex:0 0 100%;order:10;max-width:100%}.discovery-grid{grid-template-columns:1fr}.filter-row{flex-direction:column}.filter-group{min-width:100%}}