*{box-sizing:border-box;margin:0;padding:0}:root{--primary:#6c5ce7;--primary-light:#a29bfe;--primary-dark:#5a4bd1;--accent:#ff6b9d;--bg:#0f0e17;--bg-secondary:#1a1a2e;--bg-card:#16213e;--text:#e8e8e8;--text-secondary:#a0a0b0;--border:#2a2a4a;--success:#00b894;--danger:#ff4757;--gradient-1:linear-gradient(135deg, #6c5ce7, #a29bfe);--gradient-2:linear-gradient(135deg, #ff6b9d, #ff8e53);--gradient-3:linear-gradient(135deg, #00b894, #00cec9);--shadow:0 4px 20px #0000004d;--radius:12px;--radius-sm:8px}body{background:var(--bg);color:var(--text);min-height:100vh;padding-bottom:100px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;overflow-x:hidden}#root{width:100%;max-width:1200px;margin:0 auto;padding:20px}h1,h2,h3,h4,h5,h6{color:var(--text)}a{color:var(--primary-light);text-decoration:none}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:var(--bg)}::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}::-webkit-scrollbar-thumb:hover{background:var(--primary-light)}.app-header{text-align:center;background:var(--gradient-1);border-radius:var(--radius);margin-bottom:30px;padding:40px 20px;position:relative;overflow:hidden}.app-header:before{content:"";background:radial-gradient(circle,#ffffff1a 0%,#0000 70%);width:200%;height:200%;animation:4s ease-in-out infinite pulse;position:absolute;top:-50%;left:-50%}@keyframes pulse{0%,to{opacity:.5;transform:scale(1)}50%{opacity:.8;transform:scale(1.1)}}.app-header h1{z-index:1;margin-bottom:10px;font-size:2.5rem;font-weight:800;position:relative}.app-header p{opacity:.9;z-index:1;font-size:1.1rem;position:relative}.tab-nav{flex-wrap:wrap;justify-content:center;gap:8px;margin-bottom:30px;display:flex}.tab-btn{background:var(--bg-card);color:var(--text-secondary);cursor:pointer;border:2px solid #0000;border-radius:25px;padding:10px 20px;font-size:.95rem;transition:all .3s}.tab-btn:hover{background:var(--bg-secondary);color:var(--text)}.tab-btn.active{background:var(--primary);color:#fff;border-color:var(--primary-light)}.selector-section{margin-bottom:24px}.selector-section h3{color:var(--text);margin-bottom:12px;font-size:1.1rem}.optional-tag{color:var(--text-secondary);font-size:.8rem;font-weight:400}.mood-grid{grid-template-columns:repeat(auto-fill,minmax(140px,1fr));gap:12px;display:grid}.mood-chip{border:2px solid var(--border);border-radius:var(--radius);background:var(--bg-card);color:var(--text);cursor:pointer;flex-direction:column;align-items:center;gap:6px;padding:16px 12px;transition:all .3s;display:flex;position:relative;overflow:hidden}.mood-chip:before{content:"";background:var(--accent-color,var(--primary));opacity:0;height:3px;transition:opacity .3s;position:absolute;top:0;left:0;right:0}.mood-chip:hover{border-color:var(--accent-color,var(--primary));transform:translateY(-2px)}.mood-chip.selected{border-color:var(--accent-color,var(--primary));background:#6c5ce726}.mood-chip.selected:before{opacity:1}.mood-emoji{font-size:2rem}.mood-label{font-size:.95rem;font-weight:500}.activity-grid{grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:12px;display:grid}.activity-chip{border:2px solid var(--border);border-radius:var(--radius);background:var(--bg-card);color:var(--text);cursor:pointer;flex-direction:column;align-items:center;gap:6px;padding:14px 10px;transition:all .3s;display:flex}.activity-chip:hover{border-color:var(--accent);transform:translateY(-2px)}.activity-chip.selected{border-color:var(--accent);background:#ff6b9d26}.activity-emoji{font-size:1.8rem}.activity-label{font-size:.9rem}.genre-grid{flex-wrap:wrap;gap:10px;display:flex}.genre-chip{border:2px solid var(--border);background:var(--bg-card);color:var(--text-secondary);cursor:pointer;border-radius:20px;padding:8px 20px;font-size:.9rem;transition:all .3s}.genre-chip:hover{border-color:var(--primary-light);color:var(--text)}.genre-chip.selected{border-color:var(--primary);background:var(--primary);color:#fff}.tempo-grid{gap:12px;display:flex}.tempo-chip{border:2px solid var(--border);border-radius:var(--radius);background:var(--bg-card);color:var(--text);cursor:pointer;flex-direction:column;flex:1;align-items:center;gap:4px;padding:14px 24px;transition:all .3s;display:flex}.tempo-chip:hover{border-color:var(--success)}.tempo-chip.selected{border-color:var(--success);background:#00b89426}.tempo-label{font-size:1rem;font-weight:500}.tempo-bpm{color:var(--text-secondary);font-size:.8rem}.energy-grid{gap:12px;display:flex}.energy-chip{border:2px solid var(--border);border-radius:var(--radius);background:var(--bg-card);color:var(--text);cursor:pointer;flex-direction:column;flex:1;align-items:center;gap:6px;padding:14px 24px;transition:all .3s;display:flex}.energy-chip:hover{border-color:var(--accent)}.energy-chip.selected{border-color:var(--accent);background:#ff6b9d26}.energy-bar{background:var(--border);border-radius:3px;width:60px;height:6px;overflow:hidden}.energy-fill{border-radius:3px;height:100%;transition:width .3s}.energy-fill.low{background:var(--success);width:33%}.energy-fill.medium{background:#ffd93d;width:66%}.energy-fill.high{background:var(--danger);width:100%}.energy-label{font-size:.95rem;font-weight:500}.generate-btn{background:var(--gradient-2);color:#fff;cursor:pointer;border:none;border-radius:30px;justify-content:center;align-items:center;gap:8px;padding:14px 32px;font-size:1.1rem;font-weight:600;transition:all .3s;display:inline-flex;box-shadow:0 4px 15px #ff6b9d66}.generate-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #ff6b9d80}.generate-btn:disabled{opacity:.5;cursor:not-allowed}.generate-hint{color:var(--text-secondary);margin-top:10px;font-size:.9rem}.spinner{border:3px solid #ffffff4d;border-top-color:#fff;border-radius:50%;width:20px;height:20px;animation:1s linear infinite spin;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.generating-animation{text-align:center;padding:30px}.music-notes{justify-content:center;gap:15px;margin-bottom:15px;display:flex}.note{font-size:2rem;animation:1.5s ease-in-out infinite float}.note:nth-child(2){animation-delay:.3s}.note:nth-child(3){animation-delay:.6s}.note:nth-child(4){animation-delay:.9s}.note:nth-child(5){animation-delay:1.2s}@keyframes float{0%,to{opacity:.3;transform:translateY(0)}50%{opacity:1;transform:translateY(-20px)}}.generated-playlist{margin-top:30px;animation:.5s ease-out slideUp}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.playlist-header{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.playlist-header h2{font-size:1.5rem}.action-btn{cursor:pointer;border:none;border-radius:20px;padding:8px 16px;font-size:.9rem;transition:all .3s}.save-btn{background:var(--success);color:#fff}.save-btn:hover{background:#00a67d}.song-list{flex-direction:column;gap:8px;display:flex}.song-item{background:var(--bg-card);border-radius:var(--radius-sm);cursor:pointer;border:2px solid #0000;align-items:center;gap:14px;padding:12px 16px;transition:all .3s;display:flex}.song-item:hover{background:var(--bg-secondary);transform:translate(4px)}.song-item.playing{border-color:var(--accent);background:#ff6b9d14}.song-index{color:var(--text-secondary);text-align:center;flex-shrink:0;width:24px;font-size:.85rem}.song-cover{border-radius:8px;flex-shrink:0;justify-content:center;align-items:center;width:48px;height:48px;display:flex;position:relative}.playing-indicator{align-items:flex-end;gap:2px;height:16px;display:flex}.playing-indicator span{background:#fff;border-radius:2px;width:3px;animation:.6s ease-in-out infinite bounce}.playing-indicator span:nth-child(2){animation-delay:.2s}.playing-indicator span:nth-child(3){animation-delay:.4s}@keyframes bounce{0%,to{height:4px}50%{height:16px}}.song-info{flex:1;min-width:0}.song-title{white-space:nowrap;text-overflow:ellipsis;font-size:.95rem;font-weight:600;display:block;overflow:hidden}.song-artist{color:var(--text-secondary);white-space:nowrap;text-overflow:ellipsis;font-size:.85rem;display:block;overflow:hidden}.song-meta{flex-shrink:0;gap:8px;display:flex}.song-genre,.song-bpm{background:var(--bg);color:var(--text-secondary);border-radius:10px;padding:3px 10px;font-size:.75rem}.play-btn{cursor:pointer;background:0 0;border:none;border-radius:50%;padding:4px 8px;font-size:1.2rem;transition:all .3s}.play-btn:hover{background:var(--bg)}.music-player{background:var(--bg-secondary);border-top:1px solid var(--border);z-index:1000;padding:16px 24px;animation:.3s ease-out slideUp;position:fixed;bottom:0;left:0;right:0}.player-header{justify-content:space-between;align-items:center;margin-bottom:12px;display:flex}.now-playing{align-items:center;gap:14px;display:flex}.album-art{border-radius:8px;justify-content:center;align-items:center;width:56px;height:56px;display:flex;position:relative;overflow:hidden}.spin-disc{border:3px solid #ffffff4d;border-top-color:#fff;border-radius:50%;width:30px;height:30px;animation:3s linear infinite spin;position:absolute}.track-info{flex-direction:column;display:flex}.track-title{font-size:1rem;font-weight:600}.track-artist{color:var(--text-secondary);font-size:.85rem}.track-album{color:var(--text-secondary);font-size:.75rem}.close-player{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;padding:4px 8px;font-size:1.2rem}.close-player:hover{color:var(--text)}.progress-section{align-items:center;gap:12px;margin-bottom:12px;display:flex}.time-label{color:var(--text-secondary);min-width:40px;font-size:.8rem}.progress-bar{background:var(--border);cursor:pointer;border-radius:2px;flex:1;height:4px;overflow:hidden}.progress-fill{background:var(--gradient-2);border-radius:2px;height:100%;transition:width .3s linear}.controls{justify-content:center;align-items:center;gap:20px;margin-bottom:12px;display:flex}.control-btn{cursor:pointer;background:0 0;border:none;padding:4px;font-size:1.5rem;transition:transform .2s}.control-btn:hover{transform:scale(1.15)}.play-pause{background:var(--gradient-2);border-radius:50%;justify-content:center;align-items:center;width:50px;height:50px;font-size:2rem;display:flex}.volume-section{justify-content:center;align-items:center;gap:10px;display:flex}.volume-slider{-webkit-appearance:none;background:var(--border);border-radius:2px;outline:none;width:120px;height:4px}.volume-slider::-webkit-slider-thumb{-webkit-appearance:none;background:var(--primary);cursor:pointer;border-radius:50%;width:14px;height:14px}.song-tags{justify-content:center;gap:8px;margin-top:8px;display:flex}.tag{background:var(--bg);color:var(--text-secondary);border-radius:10px;padding:2px 10px;font-size:.75rem}.modal-overlay{z-index:2000;background:#000000b3;justify-content:center;align-items:center;animation:.3s fadeIn;display:flex;position:fixed;inset:0}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal{background:var(--bg-card);border-radius:var(--radius);border:1px solid var(--border);width:90%;max-width:450px;padding:30px}.modal h3{margin-bottom:20px;font-size:1.3rem}.modal input[type=text]{border:2px solid var(--border);border-radius:var(--radius-sm);background:var(--bg);width:100%;color:var(--text);outline:none;padding:12px 16px;font-size:1rem;transition:border-color .3s}.modal input[type=text]:focus{border-color:var(--primary)}.modal-actions{gap:12px;margin-top:20px;display:flex}.btn-cancel,.btn-confirm{border-radius:var(--radius-sm);cursor:pointer;border:none;flex:1;padding:12px;font-size:1rem;transition:all .3s}.btn-cancel{background:var(--bg);color:var(--text);border:1px solid var(--border)}.btn-cancel:hover{background:var(--bg-secondary)}.btn-confirm{background:var(--primary);color:#fff}.btn-confirm:hover{background:var(--primary-dark)}.playlist-library{margin-top:30px}.playlist-library h2{margin-bottom:20px;font-size:1.5rem}.empty-state{text-align:center;background:var(--bg-card);border-radius:var(--radius);padding:60px 20px}.empty-icon{margin-bottom:16px;font-size:4rem;display:block}.empty-state p{color:var(--text-secondary);margin-bottom:8px}.empty-hint{font-size:.9rem}.category-tabs{flex-wrap:wrap;gap:8px;margin-bottom:20px;display:flex}.category-tab{border:1px solid var(--border);background:var(--bg-card);color:var(--text-secondary);cursor:pointer;border-radius:15px;padding:6px 14px;font-size:.85rem;transition:all .3s}.category-tab:hover{border-color:var(--primary-light);color:var(--text)}.category-tab.active{border-color:var(--primary);background:var(--primary);color:#fff}.library-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px;display:grid}.library-card{background:var(--bg-card);border-radius:var(--radius);cursor:pointer;border:1px solid var(--border);transition:all .3s;position:relative;overflow:hidden}.library-card:hover{box-shadow:var(--shadow);transform:translateY(-4px)}.card-cover{justify-content:center;align-items:center;height:160px;display:flex;position:relative}.card-overlay{opacity:0;background:#0006;justify-content:center;align-items:center;font-size:3rem;transition:opacity .3s;display:flex;position:absolute;inset:0}.library-card:hover .card-overlay{opacity:1}.card-content{padding:16px}.card-content h4{margin-bottom:6px;font-size:1.1rem}.card-content p{color:var(--text-secondary);margin-bottom:8px;font-size:.9rem}.card-tags{flex-wrap:wrap;gap:6px;margin-bottom:8px;display:flex}.card-tag{background:var(--bg);color:var(--text-secondary);border-radius:8px;padding:2px 8px;font-size:.75rem}.card-date{color:var(--text-secondary);font-size:.75rem}.delete-btn{cursor:pointer;opacity:0;background:#0009;border:none;border-radius:50%;padding:6px;font-size:1rem;transition:all .3s;position:absolute;top:10px;right:10px}.library-card:hover .delete-btn{opacity:1}.delete-btn:hover{background:var(--danger)}.playlist-detail-modal{max-width:600px;max-height:80vh;overflow-y:auto}.modal-header{justify-content:space-between;align-items:center;margin-bottom:20px;display:flex}.modal-header h3{margin-bottom:0}.modal-header button{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;font-size:1.2rem}.detail-song-list{max-height:400px;overflow-y:auto}.social-share{margin-top:30px}.social-share h3,.share-preview{margin-bottom:20px}.share-card{background:var(--bg-card);border-radius:var(--radius);border:1px solid var(--border);overflow:hidden}.share-card-header{background:var(--gradient-1);align-items:center;gap:10px;padding:16px;font-size:1.1rem;font-weight:600;display:flex}.share-card-body{padding:16px}.share-song-line{color:var(--text-secondary);padding:6px 0;font-size:.9rem}.share-more{color:var(--text-secondary);padding:6px 0;font-style:italic}.share-card-footer{border-top:1px solid var(--border);color:var(--text-secondary);padding:12px 16px;font-size:.85rem}.share-buttons{flex-wrap:wrap;gap:10px;margin-bottom:16px;display:flex}.share-platform-btn{border:2px solid var(--platform-color,var(--border));background:var(--bg-card);color:var(--text);cursor:pointer;border-radius:25px;align-items:center;gap:6px;padding:10px 18px;font-size:.9rem;transition:all .3s;display:flex}.share-platform-btn:hover{background:var(--platform-color,var(--primary));color:#fff}.platform-icon{font-size:1.1rem}.copy-link-btn{border:2px dashed var(--border);border-radius:var(--radius-sm);background:var(--bg-card);width:100%;color:var(--text-secondary);cursor:pointer;padding:12px;font-size:.95rem;transition:all .3s;display:block}.copy-link-btn:hover{border-color:var(--primary);color:var(--text)}.toast{background:var(--success);color:#fff;z-index:3000;border-radius:25px;padding:12px 24px;font-size:.9rem;animation:.3s ease-out slideUp;position:fixed;bottom:120px;left:50%;transform:translate(-50%)}.custom-rules{margin-top:30px}.custom-rules h2{margin-bottom:10px}.rules-desc{color:var(--text-secondary);margin-bottom:24px;font-size:.95rem}.rules-grid{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px;margin-bottom:24px;display:grid}.rule-group{background:var(--bg-card);border-radius:var(--radius);border:1px solid var(--border);padding:20px}.rule-group label{margin-bottom:12px;font-size:.95rem;font-weight:600;display:block}.range-inputs{align-items:center;gap:8px;display:flex}.range-inputs input{border:2px solid var(--border);border-radius:var(--radius-sm);background:var(--bg);width:80px;color:var(--text);text-align:center;outline:none;padding:8px 12px;font-size:.95rem}.range-inputs input:focus{border-color:var(--primary)}.range-inputs span{color:var(--text-secondary)}.unit{font-size:.85rem}.energy-options,.genre-options{flex-wrap:wrap;gap:8px;display:flex}.rule-chip{border:2px solid var(--border);background:var(--bg);color:var(--text-secondary);cursor:pointer;border-radius:15px;padding:6px 14px;font-size:.85rem;transition:all .3s}.rule-chip:hover{border-color:var(--primary-light)}.rule-chip.selected{border-color:var(--primary);background:var(--primary);color:#fff}.rule-slider{-webkit-appearance:none;background:var(--border);border-radius:3px;outline:none;width:100%;height:6px;margin-bottom:8px}.rule-slider::-webkit-slider-thumb{-webkit-appearance:none;background:var(--primary);cursor:pointer;border-radius:50%;width:18px;height:18px}.rule-value{text-align:center;color:var(--text-secondary);font-size:.85rem;display:block}.rule-group select{border:2px solid var(--border);border-radius:var(--radius-sm);background:var(--bg);width:100%;color:var(--text);cursor:pointer;outline:none;padding:10px 12px;font-size:.95rem}.rule-group select:focus{border-color:var(--primary)}.custom-result{margin-top:24px}.custom-result h3{margin-bottom:16px}.theme-playlist{margin-top:30px}.theme-playlist h2{margin-bottom:10px}.theme-desc{color:var(--text-secondary);margin-bottom:24px;font-size:.95rem}.theme-grid{grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:16px;margin-bottom:24px;display:grid}.theme-card{background:var(--bg-card);border:2px solid var(--border);border-radius:var(--radius);text-align:center;cursor:pointer;padding:24px 16px;transition:all .3s}.theme-card:hover{border-color:var(--primary-light);transform:translateY(-4px)}.theme-card.selected{border-color:var(--primary);background:#6c5ce71a}.theme-emoji{margin-bottom:10px;font-size:2.5rem}.theme-card h4{margin-bottom:6px;font-size:1rem}.theme-count{color:var(--text-secondary);font-size:.85rem}.theme-songs{animation:.5s ease-out slideUp}.theme-header{justify-content:space-between;align-items:center;margin-bottom:16px;display:flex}.theme-header h3{margin-bottom:0}.content-card{background:var(--bg-card);border-radius:var(--radius);border:1px solid var(--border);margin-bottom:24px;padding:24px}@media (width<=768px){.app-header h1{font-size:1.8rem}.mood-grid,.activity-grid,.theme-grid{grid-template-columns:repeat(3,1fr)}.rules-grid,.library-grid{grid-template-columns:1fr}.music-player{padding:12px 16px}.song-meta{display:none}.tab-nav{gap:6px}.tab-btn{padding:8px 14px;font-size:.85rem}}