:root{--primary: #4F46E5;--primary-light: #818CF8;--primary-bg: #EEF2FF;--success: #10B981;--success-bg: #D1FAE5;--warning: #F59E0B;--warning-bg: #FEF3C7;--danger: #EF4444;--danger-bg: #FEE2E2;--text: #1F2937;--text-secondary: #6B7280;--text-light: #9CA3AF;--bg: #F9FAFB;--white: #FFFFFF;--border: #E5E7EB;--shadow: 0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);--shadow-md: 0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);--shadow-lg: 0 10px 15px rgba(0,0,0,.1), 0 4px 6px rgba(0,0,0,.05);--radius: 12px;--radius-sm: 8px;--radius-lg: 16px;--transition: all .3s ease;--app-height: 100vh;--header-h: 56px;--step-h: 0px;--footer-h: 0px;--color-text-secondary: var(--text-secondary);--logo-size-home: clamp(96px, 22vw, 120px);--logo-size-loading: clamp(88px, 18vw, 112px)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica 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var(--border);position:sticky;top:0;z-index:100}#header-title{font-size:18px;font-weight:700;color:var(--primary)}.header-btn{background:none;border:none;color:var(--text-secondary);cursor:pointer;padding:4px;border-radius:var(--radius-sm);transition:var(--transition);display:flex;align-items:center;justify-content:center}.header-btn:hover{background:var(--primary-bg);color:var(--primary)}#step-indicator{display:flex;align-items:center;justify-content:center;padding:16px 24px;background:var(--white);border-bottom:1px solid var(--border)}.step{display:flex;flex-direction:column;align-items:center;gap:4px}.step-circle{width:28px;height:28px;border-radius:50%;background:var(--border);color:var(--text-light);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:600;transition:var(--transition)}.step.active .step-circle{background:var(--primary);color:var(--white)}.step.completed .step-circle{background:var(--success);color:var(--white)}.step-label{font-size:11px;color:var(--text-light)}.step.active .step-label{color:var(--primary);font-weight:600}.step.completed .step-label{color:var(--success)}.step-line{flex:1;height:2px;background:var(--border);margin:0 8px 18px;max-width:60px}.step-line.active{background:var(--primary)}.page{display:none;min-height:calc(var(--app-height) - var(--header-h) - var(--step-h) - var(--footer-h));animation:fadeIn .3s ease}.page.active{display:block}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.home-content{padding:24px 20px calc(24px + var(--footer-h));display:flex;flex-direction:column;align-items:center;gap:24px}.home-hero{text-align:center;padding:20px 0}.hero-icon{font-size:56px;margin-bottom:12px}.home-camera-icon{width:120px;height:120px;border:none;border-radius:24px;background:transparent;display:inline-flex;align-items:center;justify-content:center;padding:0;cursor:pointer;transition:transform .15s ease;margin-bottom:12px}.home-camera-icon:active{transform:scale(.95)}.home-camera-icon:focus-visible{outline:2px solid var(--primary);outline-offset:4px}.home-camera-icon .brand-logo{width:var(--logo-size-home);height:var(--logo-size-home);display:block;object-fit:contain}.home-hero h2{font-size:22px;font-weight:700;color:var(--text);margin-bottom:8px}.home-hero p{font-size:14px;color:var(--text-secondary)}.upload-area{width:100%;border:2px dashed var(--border);border-radius:var(--radius-lg);padding:32px 20px;text-align:center;cursor:pointer;transition:var(--transition);background:var(--bg)}.upload-area:hover,.upload-area.drag-over{border-color:var(--primary);background:var(--primary-bg)}.upload-icon{margin-bottom:12px}.upload-text{font-size:15px;color:var(--text-secondary);margin-bottom:4px}.upload-hint{font-size:12px;color:var(--text-light)}.action-buttons{width:100%;display:flex;flex-direction:column;gap:12px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:none;border-radius:var(--radius);font-size:15px;font-weight:600;cursor:pointer;transition:var(--transition);padding:12px 24px;white-space:nowrap}.btn-primary{background:var(--primary);color:var(--white)}.btn-primary:hover{background:#4338ca;transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-primary:active{transform:translateY(0)}.btn-outline{background:var(--white);color:var(--primary);border:2px solid var(--primary)}.btn-outline:hover{background:var(--primary-bg)}.btn-success{background:var(--success);color:var(--white)}.btn-success:hover{background:#059669}.btn-large{padding:14px 28px;font-size:16px;border-radius:var(--radius-lg)}.btn-block{width:100%}.btn-circle{width:56px;height:56px;border-radius:50%;padding:0;border:none}.btn-audio{width:40px;height:40px;border-radius:50%;background:var(--primary-bg);color:var(--primary);padding:0;border:none;cursor:pointer;transition:var(--transition);display:flex;align-items:center;justify-content:center}.btn-audio:hover{background:var(--primary);color:var(--white)}.btn-audio.playing{background:var(--primary);color:var(--white);animation:pulse-audio 1.2s ease-in-out infinite}@keyframes pulse-audio{0%,to{transform:scale(1);opacity:1}50%{transform:scale(1.1);opacity:.8}}.camera-container{position:relative;width:100%;height:calc(var(--app-height) - var(--header-h) - var(--step-h) - var(--footer-h));background:#000;overflow:hidden}#camera-video{width:100%;height:100%;object-fit:cover}.camera-overlay{position:absolute;top:0;left:0;width:100%;height:100%;display:flex;align-items:center;justify-content:center;pointer-events:none}.camera-frame{width:70%;height:50%;border:2px solid rgba(255,255,255,.6);border-radius:var(--radius)}.camera-controls{position:absolute;bottom:calc(16px + env(safe-area-inset-bottom,0px));left:0;width:100%;display:flex;justify-content:center}.btn-capture{width:72px;height:72px;border-radius:50%;background:var(--white);border:4px solid var(--primary);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:var(--transition)}.btn-capture:hover{transform:scale(1.05)}.btn-capture:active{transform:scale(.95)}.capture-inner{width:56px;height:56px;border-radius:50%;background:var(--primary);transition:var(--transition)}.btn-capture:active .capture-inner{background:#4338ca}.loading-content{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:calc(var(--app-height) - var(--header-h) - var(--step-h) - var(--footer-h));padding:32px 20px;gap:20px}#page-loading{position:fixed;inset:0;background:#00000047;z-index:1500}#page-loading .loading-content{min-height:var(--app-height)}.loading-logo{width:var(--logo-size-loading);height:var(--logo-size-loading);display:block;object-fit:contain;opacity:.4;animation:fadeBreath 2.4s ease-in-out infinite;will-change:opacity}@keyframes fadeBreath{0%{opacity:.4}50%{opacity:1}to{opacity:.4}}.loading-text{max-width:22em;padding:0 8px;text-align:center;font-size:16px;color:var(--text-secondary);word-break:break-word;line-break:strict}.loading-slow{display:flex;flex-direction:column;align-items:center;gap:10px;margin-top:6px}.loading-slow-text{font-size:12px;color:var(--text-secondary);opacity:.8;text-align:center}.loading-spinner{width:48px;height:48px;border:4px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}.loading-spinner.small{width:24px;height:24px;border-width:3px}@keyframes spin{to{transform:rotate(360deg)}}.progress-bar{width:200px;height:4px;background:var(--border);border-radius:2px;overflow:hidden}.progress-bar-fill{height:100%;background:var(--primary);border-radius:2px;width:0%;transition:width .5s ease}.result-content{padding:20px;display:flex;flex-direction:column;gap:16px}.result-image-wrapper{width:100%;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md)}.result-image-wrapper img{width:100%;height:200px;object-fit:cover;display:block}.result-card{background:var(--primary-bg);border-radius:var(--radius-lg);padding:20px;display:flex;align-items:center;gap:16px}.result-word-section{flex:1}.result-english{font-size:32px;font-weight:800;color:var(--primary);line-height:1.2}.result-phonetic{font-size:16px;color:var(--primary-light);margin-top:2px}.result-chinese{font-size:18px;color:var(--text);margin-top:4px;font-weight:500}.result-category{display:inline-block;margin-top:8px;padding:2px 10px;background:var(--primary);color:var(--white);border-radius:20px;font-size:12px;font-weight:500}.section-title{font-size:16px;font-weight:700;color:var(--text);margin-bottom:12px;padding-left:4px}.phrase-list{display:flex;flex-direction:column;gap:10px}.phrase-item{background:var(--bg);border-radius:var(--radius);padding:14px 16px;display:flex;align-items:center;gap:12px;transition:var(--transition);cursor:pointer}.phrase-item:hover{background:var(--primary-bg)}.phrase-number{width:24px;height:24px;border-radius:50%;background:var(--primary);color:var(--white);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;flex-shrink:0}.phrase-text{flex:1}.phrase-english{font-size:15px;font-weight:600;color:var(--text)}.phrase-translation{font-size:13px;color:var(--text-secondary);margin-top:2px}.phrase-play{width:32px;height:32px;border-radius:50%;background:var(--primary-bg);color:var(--primary);border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:var(--transition);flex-shrink:0}.phrase-play:hover{background:var(--primary);color:var(--white)}.phrase-play-btn{width:32px;height:32px;border-radius:50%;background:var(--primary-bg);color:var(--primary);border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:var(--transition);flex-shrink:0}.phrase-play-btn:hover{background:var(--primary);color:var(--white)}.phrase-play-btn.playing{background:var(--primary);color:var(--white);animation:pulse-audio 1.2s ease-in-out infinite}.phrase-phonetic{font-size:12px;color:var(--text-hint);margin-top:2px;font-style:italic}.result-actions{display:flex;flex-direction:column;gap:10px;margin-top:8px}.tooltip-trigger{font-size:12px;color:var(--primary);cursor:help;opacity:.7;transition:opacity .2s}.tooltip-trigger:hover{opacity:1}.score-item{position:relative}.dimension-tooltip{display:none;position:absolute;left:0;top:100%;z-index:100;background:var(--white);border:1px solid var(--border);border-radius:12px;padding:14px 16px;min-width:280px;max-width:340px;box-shadow:0 8px 24px #0000001f;font-size:13px;line-height:1.5;margin-top:4px}.score-item:hover .dimension-tooltip{display:block}.tooltip-title{font-weight:600;color:var(--primary);margin-bottom:6px;font-size:14px}.tooltip-desc{color:var(--text-secondary);margin-bottom:8px}.tooltip-issues{margin-bottom:8px}.tooltip-issues:empty{display:none}.tooltip-issues-label{font-weight:600;color:#e74c3c;font-size:12px;margin-bottom:4px}.tooltip-issues-list{color:var(--text-primary);padding-left:16px;margin:0}.tooltip-issues-list li{margin-bottom:2px}.tooltip-tips:empty{display:none}.tooltip-tips-label{font-weight:600;color:#27ae60;font-size:12px;margin-bottom:4px}.tooltip-tips-list{color:var(--text-primary);padding-left:16px;margin:0}.tooltip-tips-list li{margin-bottom:2px}.dialogue-reference{background:var(--primary-bg);border-radius:10px;padding:10px 14px;margin-bottom:12px;max-height:150px;overflow-y:auto}.reference-header{font-size:13px;font-weight:600;color:var(--primary);margin-bottom:6px}.reference-line{font-size:12px;color:var(--text-secondary);padding:3px 0;border-bottom:1px solid rgba(0,0,0,.05);display:flex;align-items:center;gap:6px}.reference-line:last-child{border-bottom:none}.reference-speaker{font-weight:600;color:var(--text-primary);min-width:20px}.reference-english{color:var(--text-primary);font-weight:500}.reference-chinese{color:var(--text-hint);font-size:11px}.btn-play-bubble{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:50%;border:none;background:var(--primary-bg);color:var(--primary);cursor:pointer;margin-left:4px;vertical-align:middle;transition:var(--transition);padding:0;flex-shrink:0}.btn-play-bubble:hover{background:var(--primary);color:var(--white)}.btn-play-bubble.playing{background:var(--primary);color:var(--white);animation:pulse-audio 1.2s ease-in-out infinite}.dialogue-list{max-height:300px;overflow-y:auto}.dialogue-evaluation{margin-top:6px;padding:8px 10px;border-radius:8px;font-size:12px;line-height:1.5}.dialogue-evaluation.score-good{background:#27ae6014;border-left:3px solid #27ae60}.dialogue-evaluation.score-ok{background:#f39c1214;border-left:3px solid #f39c12}.dialogue-evaluation.score-poor{background:#e74c3c14;border-left:3px solid #e74c3c}.eval-score{color:#f39c12;font-size:13px;letter-spacing:1px;margin-bottom:4px}.score-good .eval-score{color:#27ae60}.score-poor .eval-score{color:#e74c3c}.eval-corrections{margin-top:4px}.correction-item{display:flex;align-items:center;gap:6px;padding:3px 0;flex-wrap:wrap}.correction-original{color:#e74c3c;text-decoration:line-through;font-weight:500}.correction-arrow{color:var(--text-hint);font-size:11px}.correction-corrected{color:#27ae60;font-weight:600}.correction-reason{color:var(--text-hint);font-size:11px;font-style:italic}.eval-suggestion{margin-top:4px;color:var(--text-secondary);font-size:12px}.eval-translation{margin-top:4px;color:var(--text-secondary);font-size:12px;font-style:italic}.btn-rerecord{width:40px;height:40px;border-radius:50%;background:var(--primary-bg);color:var(--primary);border:2px solid var(--primary);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:var(--transition)}.btn-rerecord:hover{background:var(--primary);color:var(--white)}.error-report-panel{background:var(--primary-bg);border-radius:12px;padding:14px 16px;margin-top:12px}.error-report-summary{font-size:14px;font-weight:600;color:var(--primary);margin-bottom:8px}.error-report-weak{margin-top:6px}.weak-area-item{display:flex;align-items:center;gap:8px;padding:4px 0;font-size:12px}.weak-area-bar{flex:1;height:6px;background:var(--border);border-radius:3px;overflow:hidden}.weak-area-fill{height:100%;border-radius:3px;background:var(--primary);transition:width .3s}.weak-area-label{min-width:70px;color:var(--text-secondary)}.weak-area-count{min-width:30px;text-align:right;color:var(--text-hint);font-size:11px}.practice-content{padding:20px;display:flex;flex-direction:column;gap:20px}.practice-phrase-card{background:linear-gradient(135deg,var(--primary),var(--primary-light));border-radius:var(--radius-lg);padding:24px 20px;color:var(--white);text-align:center;position:relative}.practice-phrase{font-size:24px;font-weight:700;line-height:1.4;word-spacing:4px}.practice-phrase .word-active{color:#fde68a}.practice-phrase .word-highlight{color:#fde68a;text-decoration:underline}.practice-translation{font-size:14px;opacity:.85;margin-top:8px}.practice-phrase-card .btn-audio{position:absolute;top:12px;right:12px;background:#fff3;color:var(--white)}.practice-phrase-card .btn-audio:hover{background:#ffffff4d}.practice-record-section{display:flex;flex-direction:column;align-items:center;gap:16px;padding:20px 0}#waveform-canvas{width:100%;max-width:300px;height:80px;border-radius:var(--radius);background:var(--bg)}.record-status{font-size:14px;color:var(--text-secondary)}.record-timer{font-size:20px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums}.btn-record{background:var(--danger);color:var(--white);width:64px;height:64px;border:none;transition:var(--transition)}.btn-record:hover{background:#dc2626;transform:scale(1.05)}.btn-record:active{transform:scale(.95)}.btn-record.recording{animation:pulse 1.5s ease infinite}@keyframes pulse{0%,to{box-shadow:0 0 #ef444466}50%{box-shadow:0 0 0 16px #ef444400}}.practice-result{padding:16px 0}.score-ring{width:140px;height:140px;border-radius:50%;margin:0 auto 20px;display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative;background:conic-gradient(var(--border) 0deg,var(--border) 360deg)}.score-ring:before{content:"";position:absolute;width:110px;height:110px;border-radius:50%;background:var(--white)}.score-value{font-size:36px;font-weight:800;line-height:1;position:relative;z-index:1}.score-label{font-size:12px;color:var(--text-secondary);margin-top:4px;position:relative;z-index:1}.score-details{display:flex;flex-direction:column;gap:12px;margin-bottom:16px}.score-item{display:flex;align-items:center;gap:10px}.score-item-label{font-size:13px;color:var(--text-secondary);width:48px;flex-shrink:0}.score-bar{flex:1;height:8px;background:var(--border);border-radius:4px;overflow:hidden}.score-bar-fill{height:100%;border-radius:4px;transition:width .8s ease;width:0%}.score-bar-fill.accuracy{background:var(--primary)}.score-bar-fill.fluency{background:var(--success)}.score-bar-fill.tone{background:var(--warning)}.score-item-value{font-size:14px;font-weight:700;width:32px;text-align:right;flex-shrink:0}.word-comparison{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:16px;justify-content:center}.word-tag{padding:4px 10px;border-radius:20px;font-size:13px;font-weight:500}.word-tag.correct{background:var(--success-bg);color:var(--success)}.word-tag.wrong{background:var(--danger-bg);color:var(--danger)}.word-tag.missed{background:var(--warning-bg);color:var(--warning);text-decoration:line-through}.score-feedback{background:var(--bg);border-radius:var(--radius);padding:12px 16px;font-size:14px;color:var(--text-secondary);line-height:1.5}.manual-input-area{display:flex;flex-direction:column;gap:10px;padding:16px;background:var(--warning-bg);border-radius:var(--radius);border:1px solid var(--warning)}.manual-input-area .form-input{width:100%;padding:10px 14px;border:2px solid var(--border);border-radius:var(--radius);font-size:14px;outline:none;transition:var(--transition)}.manual-input-area .form-input:focus{border-color:var(--primary)}.manual-input-area .btn{width:100%}.practice-actions{display:flex;flex-direction:column;gap:10px}.scene-content{padding:20px;display:flex;flex-direction:column;gap:16px}.scene-image-wrapper{width:100%;border-radius:var(--radius-lg);overflow:hidden;position:relative;box-shadow:var(--shadow-md);min-height:200px;background:var(--bg)}.scene-image-wrapper img{width:100%;height:240px;object-fit:cover;display:block}.scene-loading{position:absolute;top:0;left:0;width:100%;height:100%;background:#ffffffe6;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;font-size:13px;color:var(--text-secondary)}.dialogue-list{display:flex;flex-direction:column;gap:12px}.dialogue-bubble{max-width:80%;padding:10px 14px;border-radius:var(--radius);font-size:14px;line-height:1.5;position:relative;animation:fadeIn .3s ease}.dialogue-bubble.left{background:var(--bg);color:var(--text);align-self:flex-start;border-bottom-left-radius:4px}.dialogue-bubble.right{background:var(--primary);color:var(--white);align-self:flex-end;border-bottom-right-radius:4px}.dialogue-speaker{font-size:11px;font-weight:600;margin-bottom:2px;opacity:.7}.dialogue-english{font-weight:500}.dialogue-chinese{font-size:12px;opacity:.8;margin-top:2px}.dialogue-bubble.playing{box-shadow:0 0 0 2px var(--primary-light)}.scene-practice{background:var(--bg);border-radius:var(--radius-lg);padding:16px}.practice-prompt{font-size:14px;color:var(--text-secondary);margin-bottom:12px;text-align:center}.practice-input-area{display:flex;align-items:center;gap:8px}.btn-mic{width:44px;height:44px;border-radius:50%;background:var(--primary-bg);color:var(--primary);border:none;cursor:pointer;transition:var(--transition);display:flex;align-items:center;justify-content:center;flex-shrink:0}.btn-mic:hover{background:var(--primary);color:var(--white)}.btn-mic.recording{background:var(--danger);color:var(--white);animation:pulse 1.5s ease infinite}.text-input{flex:1;padding:10px 14px;border:2px solid var(--border);border-radius:var(--radius);font-size:14px;outline:none;transition:var(--transition)}.text-input:focus{border-color:var(--primary)}.btn-send{width:44px;height:44px;border-radius:50%;padding:0;flex-shrink:0}.scene-actions{text-align:center}.scene-turn-status{text-align:center;padding:8px 0}.turn-indicator{display:inline-flex;align-items:center;gap:8px;padding:6px 16px;border-radius:20px;background:var(--primary-bg);color:var(--primary);font-size:13px;font-weight:500}.turn-dot{width:8px;height:8px;border-radius:50%;background:var(--primary);animation:blink 1s ease infinite}@keyframes blink{0%,to{opacity:1}50%{opacity:.3}}.turn-indicator.user-turn{background:var(--success-bg);color:var(--success)}.turn-indicator.user-turn .turn-dot{background:var(--success)}.scene-start-area{margin-top:12px}.dialogue-bubble .btn-play-bubble{background:none;border:none;cursor:pointer;padding:2px 4px;opacity:.6;transition:var(--transition);vertical-align:middle;display:inline-flex;align-items:center}.dialogue-bubble .btn-play-bubble:hover{opacity:1}.modal{position:fixed;top:0;left:0;width:100%;height:100%;z-index:1000;display:flex;align-items:center;justify-content:center}.modal-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:#00000080}.modal-content{position:relative;background:var(--white);border-radius:var(--radius-lg);width:90%;max-width:400px;max-height:80vh;overflow-y:auto;animation:fadeIn .3s ease}.modal-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--border)}.modal-header h2{font-size:18px;font-weight:700}.modal-close{background:none;border:none;font-size:24px;color:var(--text-secondary);cursor:pointer;padding:4px;line-height:1}.modal-body{padding:20px}.form-group{margin-bottom:16px}.form-group label{display:block;font-size:13px;font-weight:600;color:var(--text-secondary);margin-bottom:6px}.form-input{width:100%;padding:10px 14px;border:2px solid var(--border);border-radius:var(--radius);font-size:14px;outline:none;transition:var(--transition)}.form-input:focus{border-color:var(--primary)}#toast-container{position:fixed;top:20px;left:50%;transform:translate(-50%);z-index:2000;display:flex;flex-direction:column;gap:8px;pointer-events:none}.toast{padding:10px 20px;border-radius:var(--radius);font-size:14px;font-weight:500;color:var(--white);animation:toastIn .3s ease,toastOut .3s ease 2.7s;pointer-events:auto;text-align:center;max-width:320px}.toast.success{background:var(--success)}.toast.error{background:var(--danger)}.toast.warning{background:var(--warning)}.toast.info{background:var(--primary)}@keyframes toastIn{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}@keyframes toastOut{0%{opacity:1}to{opacity:0}}.btn-history{width:100%;margin-top:8px;padding:10px 20px;font-size:14px;gap:6px;color:var(--text-secondary);border-color:var(--border);background:var(--bg)}.btn-history:hover{color:var(--primary);border-color:var(--primary);background:var(--primary-bg)}.btn-sm{padding:6px 14px;font-size:12px;border-radius:var(--radius-sm)}.history-content{padding:20px;min-height:calc(var(--app-height) - var(--header-h) - var(--step-h) - var(--footer-h))}.history-header-bar{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.history-title{font-size:20px;font-weight:700;color:var(--text)}.history-list{display:flex;flex-direction:column;gap:12px}.history-empty{text-align:center;padding:60px 20px;color:var(--text-light)}.history-empty-icon{font-size:48px;margin-bottom:12px}.history-empty p{font-size:15px;color:var(--text-secondary)}.history-empty-hint{font-size:13px!important;color:var(--text-light)!important;margin-top:4px}.history-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px;transition:var(--transition);cursor:pointer}.history-card:hover{border-color:var(--primary);box-shadow:var(--shadow)}.history-card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px}.history-card-subject{font-size:18px;font-weight:700;color:var(--primary)}.history-card-time{font-size:11px;color:var(--text-light)}.history-card-stats{display:flex;gap:16px;font-size:12px;color:var(--text-secondary)}.history-card-stats span{display:inline-flex;align-items:center;gap:4px}.history-card-delete{background:none;border:none;color:var(--text-light);cursor:pointer;padding:4px;border-radius:4px;transition:var(--transition);font-size:16px;line-height:1}.history-card-delete:hover{color:var(--danger);background:var(--danger-bg)}.history-detail{background:var(--bg);border-radius:var(--radius);padding:14px 16px;margin-top:10px}.history-detail-section{margin-bottom:10px}.history-detail-section:last-child{margin-bottom:0}.history-detail-label{font-size:12px;font-weight:600;color:var(--text-secondary);margin-bottom:4px}.history-detail-phrases{display:flex;flex-wrap:wrap;gap:6px}.history-detail-phrase{padding:3px 10px;background:var(--primary-bg);color:var(--primary);border-radius:20px;font-size:12px;font-weight:500}.history-detail-dialogue{font-size:12px;color:var(--text-secondary);line-height:1.6}.history-detail-line{padding:2px 0}.history-detail-line .speaker-a{color:var(--primary);font-weight:600}.history-detail-line .speaker-b{color:var(--success);font-weight:600}