.app{min-height:100vh;background:linear-gradient(135deg,#667eea,#764ba2);padding:0}.header{background:#fffffff2;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);box-shadow:0 4px 20px #00000014;padding:20px 40px;position:sticky;top:0;z-index:100}.header-content{max-width:1600px;margin:0 auto;text-align:center}.header-content h1{font-size:2rem;margin:0 0 8px;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;font-weight:700}.subtitle{font-size:1rem;color:#666;margin:0;font-weight:500}.main-content{max-width:1600px;margin:30px auto;padding:0 40px;display:grid;grid-template-columns:380px 1fr;gap:30px;align-items:start}.sidebar{display:flex;flex-direction:column;gap:20px;position:sticky;top:120px;max-height:calc(100vh - 140px);overflow-y:auto}.sidebar-section{background:#fff;border-radius:16px;padding:20px;box-shadow:0 8px 32px #0000001a;transition:all .3s cubic-bezier(.4,0,.2,1)}.sidebar-section:hover{transform:translateY(-2px);box-shadow:0 12px 40px #00000026}.editor-area{display:flex;flex-direction:column;gap:20px}.editor-card,.player-card{background:#fff;border-radius:16px;padding:24px;box-shadow:0 8px 32px #0000001a;transition:transform .2s,box-shadow .2s}.editor-card:hover{transform:translateY(-2px);box-shadow:0 12px 40px #00000026}.language-selector-container{display:flex;align-items:center;gap:12px;margin-bottom:20px;padding:14px 18px;background:linear-gradient(135deg,#f8f9fa,#e9ecef);border-radius:12px;border:2px solid transparent;transition:all .3s}.language-selector-container:hover{border-color:#667eea;background:linear-gradient(135deg,#fff,#f8f9fa)}.language-selector-container label{font-size:1rem;font-weight:600;color:#495057;white-space:nowrap}.language-select{flex:1;padding:10px 14px;border:2px solid #dee2e6;border-radius:10px;font-size:1rem;background-color:#fff;color:#212529;outline:none;cursor:pointer;transition:all .3s;font-weight:500}.language-select:hover{border-color:#667eea}.language-select:focus{border-color:#667eea;box-shadow:0 0 0 4px #667eea26}.synthesize-btn{width:100%;padding:18px 24px;margin-top:24px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:14px;font-size:1.15rem;font-weight:700;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex;align-items:center;justify-content:center;gap:10px;box-shadow:0 4px 16px #667eea4d;position:relative;overflow:hidden}.synthesize-btn:before{content:"";position:absolute;top:50%;left:50%;width:0;height:0;border-radius:50%;background:#ffffff4d;transform:translate(-50%,-50%);transition:width .6s,height .6s}.synthesize-btn:hover:not(:disabled):before{width:300px;height:300px}.synthesize-btn:hover:not(:disabled){transform:translateY(-3px);box-shadow:0 8px 24px #667eea80}.synthesize-btn:active:not(:disabled){transform:translateY(-1px)}.synthesize-btn:disabled{opacity:.6;cursor:not-allowed;transform:none}.btn-icon{font-size:1.3rem}.audio-result-section{margin-top:24px;padding-top:24px;border-top:2px solid #f1f3f5;animation:fadeInUp .4s ease}@keyframes fadeInUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.loading-spinner{display:inline-block;width:20px;height:20px;border:3px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width: 1200px){.main-content{grid-template-columns:1fr;padding:0 20px}.sidebar{position:static;max-height:none;display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}.header-content{flex-direction:column;text-align:center}.header-left h1{font-size:1.5rem}}@media (max-width: 768px){.header{padding:15px 20px}.header-left h1{font-size:1.3rem}.subtitle{font-size:.85rem}.main-content{margin:20px auto;padding:0 15px}.sidebar{grid-template-columns:1fr}.editor-card,.audio-result-section,.sidebar-section{padding:16px}.synthesize-btn{padding:16px 20px;font-size:1.05rem}}.text-editor{position:relative}.text-editor textarea{width:100%;padding:16px;border:2px solid #e0e0e0;border-radius:12px;font-size:1rem;font-family:inherit;resize:vertical;min-height:200px;line-height:1.6;transition:border-color .2s}.text-editor textarea:focus{outline:none;border-color:#667eea}.char-count{position:absolute;bottom:12px;right:16px;color:#999;font-size:.85rem;background:#fff;padding:4px 8px;border-radius:4px}.voice-selector h3{margin:0 0 14px;color:#212529;font-size:1.05rem;font-weight:700;display:flex;align-items:center;gap:8px}.dialect-filter{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px;padding:6px;background:linear-gradient(135deg,#f8f9fa,#e9ecef);border-radius:10px}.filter-btn{padding:6px 10px;border:2px solid transparent;background:#fff;border-radius:8px;cursor:pointer;font-size:.8rem;transition:all .3s cubic-bezier(.4,0,.2,1);font-weight:600;color:#495057;box-shadow:0 2px 4px #0000000d}.filter-btn:hover{background:#fff;transform:translateY(-2px);box-shadow:0 4px 8px #0000001a;border-color:#667eea}.filter-btn.active{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;box-shadow:0 4px 12px #667eea66;border-color:transparent}.voice-list{display:flex;flex-direction:column;gap:8px;max-height:450px;overflow-y:auto;padding-right:4px}.voice-list::-webkit-scrollbar{width:6px}.voice-list::-webkit-scrollbar-track{background:#f1f1f1;border-radius:3px}.voice-list::-webkit-scrollbar-thumb{background:#667eea;border-radius:3px}.voice-list::-webkit-scrollbar-thumb:hover{background:#764ba2}.voice-item-wrapper{display:flex;align-items:center;gap:8px}.voice-item{display:flex;align-items:center;gap:12px;padding:12px 14px;border:2px solid #e9ecef;border-radius:12px;background:#fff;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden}.voice-item:before{content:"";position:absolute;top:0;left:0;width:4px;height:100%;background:linear-gradient(135deg,#667eea,#764ba2);transform:scaleY(0);transition:transform .3s}.voice-item:hover{border-color:#667eea;background:linear-gradient(135deg,#f8f9ff,#fff);transform:translate(4px);box-shadow:0 4px 12px #667eea26}.voice-item:hover:before{transform:scaleY(1)}.voice-item.selected{border-color:#667eea;background:linear-gradient(135deg,#667eea14,#764ba214);box-shadow:0 4px 16px #667eea33}.voice-item.selected:before{transform:scaleY(1)}.voice-icon{font-size:1.4rem;flex-shrink:0}.voice-info{text-align:left}.voice-name{font-weight:600;color:#333;font-size:.95rem}.voice-desc{font-size:.85rem;color:#888}.dialect-tag{display:inline-block;padding:2px 8px;background:linear-gradient(135deg,#ff6b6b,#ee5a6f);color:#fff;border-radius:4px;font-size:11px;font-weight:600;margin-top:4px;box-shadow:0 1px 3px #ff6b6b4d}.preview-btn{padding:8px 12px;background:#f0f0f0;border:1px solid #ddd;border-radius:6px;cursor:pointer;font-size:16px;transition:all .2s;min-width:40px}.preview-btn:hover{background:#667eea;border-color:#667eea;transform:scale(1.05)}.preview-btn:active{transform:scale(.95)}.audio-player-container{max-width:600px;margin:30px auto}.audio-player{background:#fff;border-radius:16px;padding:24px;box-shadow:0 10px 40px #0000001a;text-align:center}.audio-player h3{color:#333;margin-bottom:20px;font-size:1.2rem}.audio-element{width:100%;margin-bottom:16px}.audio-actions{display:flex;justify-content:center;gap:12px}.download-btn{padding:12px 24px;background:linear-gradient(135deg,#11998e,#38ef7d);color:#fff;border:none;border-radius:10px;font-size:1rem;font-weight:600;cursor:pointer;transition:transform .2s,box-shadow .2s}.download-btn:hover{transform:translateY(-2px);box-shadow:0 6px 16px #11998e4d}.instruction-panel{background:#f8f9fa;border-radius:8px;padding:16px;margin-bottom:16px}.instruction-panel h3{margin:0 0 16px;color:#333;font-size:16px}.preset-section{margin-bottom:16px}.preset-section label{display:block;margin-bottom:8px;font-weight:500;color:#555}.preset-select{width:100%;padding:8px 12px;border:1px solid #ddd;border-radius:4px;font-size:14px;background:#fff;cursor:pointer}.preset-select:focus{outline:none;border-color:#4a90e2}.custom-instruction-section{margin-bottom:16px}.custom-instruction-section label{display:block;margin-bottom:8px;font-weight:500;color:#555}.instruction-textarea{width:100%;padding:10px 12px;border:1px solid #ddd;border-radius:4px;font-size:14px;font-family:inherit;resize:vertical;transition:border-color .2s}.instruction-textarea:focus{outline:none;border-color:#4a90e2}.hint{margin:8px 0 0;font-size:12px;color:#888}.advanced-toggle{margin-bottom:12px}.toggle-btn{background:none;border:none;color:#4a90e2;cursor:pointer;font-size:14px;padding:4px 0}.toggle-btn:hover{text-decoration:underline}.advanced-section{background:#fff;border-radius:6px;padding:16px;margin-top:12px}.param-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:16px}.param-item{display:flex;flex-direction:column}.param-item label{font-size:13px;color:#666;margin-bottom:4px}.param-item select,.param-item input{padding:6px 10px;border:1px solid #ddd;border-radius:4px;font-size:14px}.param-item select:focus,.param-item input:focus{outline:none;border-color:#4a90e2}.generate-btn{width:100%;padding:10px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:6px;font-size:14px;cursor:pointer;transition:transform .2s,box-shadow .2s}.generate-btn:hover{transform:translateY(-2px);box-shadow:0 4px 12px #667eea66}.generate-btn:active{transform:translateY(0)}@media (max-width: 768px){.param-grid{grid-template-columns:1fr}}.instruction-history{margin-top:12px}.history-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.history-toggle{background:none;border:none;color:#667eea;cursor:pointer;font-size:14px;padding:4px 0}.history-toggle:hover{text-decoration:underline}.clear-btn{background:#ff4757;color:#fff;border:none;border-radius:4px;padding:4px 12px;cursor:pointer;font-size:12px;transition:background .2s}.clear-btn:hover{background:#ff3838}.history-list{max-height:300px;overflow-y:auto;border:1px solid #e0e0e0;border-radius:6px;background:#fff}.history-item{padding:10px 12px;border-bottom:1px solid #f0f0f0;cursor:pointer;transition:background .2s}.history-item:last-child{border-bottom:none}.history-item:hover{background:#f8f9ff}.history-text{font-size:13px;color:#333;margin-bottom:4px;line-height:1.4}.history-meta{display:flex;justify-content:space-between;align-items:center}.history-time{font-size:11px;color:#999}.delete-btn{background:none;border:none;color:#999;font-size:18px;cursor:pointer;padding:0 4px;line-height:1;transition:color .2s}.delete-btn:hover{color:#ff4757}.usage-stats{background:linear-gradient(135deg,#f8f9fa,#fff);border-radius:10px;padding:12px 14px;box-shadow:0 2px 8px #0000000f;border:1px solid rgba(102,126,234,.08)}.usage-stats.loading,.usage-stats.error{text-align:center;color:#666;padding:12px;font-size:.8rem}.usage-stats.error{color:#ff4757}.stats-compact{display:flex;flex-direction:column;gap:8px}.stats-label{font-size:.75rem;color:#868e96;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.stats-values{display:flex;align-items:center;gap:6px;font-size:.85rem}.stats-values .used{color:#495057;font-weight:600}.stats-values .divider{color:#adb5bd;font-weight:400}.stats-values .remaining{color:#667eea;font-weight:700}.progress-bar-mini{width:100%;height:4px;background:#e9ecef;border-radius:2px;overflow:hidden}.progress-bar-mini .progress-fill{height:100%;border-radius:2px;transition:width .3s ease}.progress-bar-mini .progress-fill.normal{background:linear-gradient(90deg,#51cf66,#37b24d)}.progress-bar-mini .progress-fill.warning{background:linear-gradient(90deg,#ffd43b,#fab005)}.progress-bar-mini .progress-fill.danger{background:linear-gradient(90deg,#ff6b6b,#f03e3e)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh}#root{min-height:100vh}