:root{--color-bg:#f5f7fa;--color-surface:#fff;--color-text:#1d2129;--color-text-muted:#86909c;--color-text-secondary:#4e5969;--color-border:#e5e6eb;--color-border-light:#f2f3f5;--color-accent:#165dff;--color-accent-hover:#4080ff;--color-accent-light:#e8f3ff;--color-accent-bg:#f2f7ff;--color-success:#00b42a;--color-success-bg:#e8ffea;--color-warning:#ff7d00;--color-warning-bg:#fff7e8;--color-error:#f53f3f;--color-error-bg:#ffece8;--color-purple:#722ed1;--color-purple-bg:#f5e8ff;--font-display:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",-apple-system,sans-serif;--font-body:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",-apple-system,sans-serif;--space-2xs:4px;--space-xs:8px;--space-sm:12px;--space-md:16px;--space-lg:24px;--space-xl:32px;--space-2xl:48px;--space-3xl:64px;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--radius-xl:16px;--radius-full:9999px;--shadow-sm:0 1px 2px rgba(0,0,0,.04);--shadow-md:0 4px 12px rgba(0,0,0,.06);--shadow-lg:0 8px 24px rgba(0,0,0,.08);--ease-out:cubic-bezier(0.16,1,0.3,1);--duration-fast:120ms;--duration-short:180ms;--duration-medium:240ms;--duration-long:360ms}*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-body);font-size:14px;line-height:1.6;color:var(--color-text);background:var(--color-bg);min-height:100vh}h1,h2,h3,h4,h5,h6{font-family:var(--font-display);font-weight:600;line-height:1.3}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button,input,select,textarea{font-family:inherit;font-size:inherit}input[type=email],input[type=number],input[type=password],input[type=text],select,textarea{width:100%;padding:8px 12px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-sm);color:var(--color-text);font-size:14px;outline:none;transition:border-color var(--duration-short),box-shadow var(--duration-short)}input::placeholder,textarea::placeholder{color:var(--color-text-muted)}input:focus,select:focus,textarea:focus{border-color:var(--color-accent);box-shadow:0 0 0 2px rgba(22,93,255,.1)}select{-webkit-appearance:none;-moz-appearance:none;appearance:none;background-image:url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%2386909C' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 10px center;padding-right:32px;cursor:pointer}.radio-group{display:flex;gap:var(--space-md);flex-wrap:wrap}.radio-label{display:flex;align-items:center;gap:8px;cursor:pointer;font-size:14px;color:var(--color-text);-webkit-user-select:none;-moz-user-select:none;user-select:none}.radio-label input[type=radio]{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:18px;height:18px;border:2px solid var(--color-border);border-radius:50%;background:var(--color-surface);cursor:pointer;flex-shrink:0;transition:border-color var(--duration-short),background var(--duration-short)}.radio-label input[type=radio]:checked{border-color:var(--color-accent);background:var(--color-accent);box-shadow:inset 0 0 0 3px var(--color-surface)}.radio-label input[type=radio]:focus-visible{box-shadow:0 0 0 2px rgba(22,93,255,.2)}.btn,button{cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:6px;font-family:var(--font-display);font-weight:500;font-size:14px;line-height:1;padding:8px 20px;border-radius:var(--radius-sm);border:none;transition:all var(--duration-short);white-space:nowrap}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--color-accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--color-accent-hover)}.btn-secondary{background:transparent;color:var(--color-text);border:1px solid var(--color-border)}.btn-secondary:hover:not(:disabled){border-color:var(--color-accent);color:var(--color-accent)}.btn-ghost{background:transparent;color:var(--color-text-muted)}.btn-ghost:hover:not(:disabled){background:var(--color-bg);color:var(--color-text)}.btn-muted{background:transparent;color:var(--color-text-muted);padding:6px 12px;font-size:13px}.btn-muted:hover:not(:disabled){color:var(--color-text)}.btn-danger{background:transparent;color:var(--color-error)}.btn-danger:hover:not(:disabled){background:var(--color-error-bg)}.btn-lg{padding:12px 28px;font-size:15px;font-weight:600}.container{max-width:960px;margin:0 auto;padding:0 var(--space-lg)}.page-title{font-size:20px;font-weight:600;color:var(--color-text);margin-bottom:var(--space-sm)}.page-subtitle{font-size:14px;color:var(--color-text-muted);margin-bottom:var(--space-lg)}.app-nav{position:-webkit-sticky;position:sticky;top:0;z-index:100;background:var(--color-surface);border-bottom:1px solid var(--color-border);box-shadow:var(--shadow-sm)}.app-nav-inner{display:flex;align-items:center;max-width:1200px;margin:0 auto;padding:0 var(--space-lg);height:56px}.app-nav-brand{gap:8px;font-family:var(--font-display);color:var(--color-accent);margin-right:var(--space-xl);flex-shrink:0}.app-nav-brand,.app-nav-brand-icon{display:flex;align-items:center;font-size:16px;font-weight:700}.app-nav-brand-icon{width:28px;height:28px;background:var(--color-accent);border-radius:var(--radius-sm);justify-content:center;color:#fff}.app-nav-links{gap:4px;flex:1 1}.app-nav-link,.app-nav-links{display:flex;align-items:center}.app-nav-link{gap:6px;padding:6px 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.stat-icon{width:40px;height:40px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;margin-bottom:var(--space-sm)}.stat-card .stat-value{font-size:28px;font-weight:700;color:var(--color-text);line-height:1;margin-bottom:4px}.stat-card .stat-label{font-size:13px;color:var(--color-text-muted)}.tab-bar{display:flex;gap:0;border-bottom:1px solid var(--color-border);margin-bottom:var(--space-lg)}.tab-item{display:flex;align-items:center;gap:6px;padding:10px 20px;font-size:14px;font-weight:500;color:var(--color-text-secondary);border:none;border-bottom:2px solid transparent;background:none;cursor:pointer;transition:color var(--duration-short),border-color var(--duration-short)}.tab-item.active,.tab-item:hover{color:var(--color-accent)}.tab-item.active{border-bottom-color:var(--color-accent)}.tab-item .tab-count{display:inline-flex;align-items:center;justify-content:center;min-width:20px;height:20px;padding:0 6px;border-radius:var(--radius-full);font-size:12px;background:var(--color-border-light);color:var(--color-text-muted)}.tab-item.active .tab-count{background:var(--color-accent-light);color:var(--color-accent)}.table-wrap{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm)}table{width:100%;border-collapse:collapse;font-size:14px}thead th{padding:12px 16px;text-align:left;font-weight:500;font-size:13px;color:var(--color-text-muted);background:var(--color-bg);border-bottom:1px solid var(--color-border);white-space:nowrap}tbody td{padding:12px 16px;border-bottom:1px solid var(--color-border-light);color:var(--color-text);vertical-align:middle}tbody tr:last-child td{border-bottom:none}tbody tr:hover{background:var(--color-accent-bg)}.score-bar{display:flex;align-items:center;gap:var(--space-sm)}.score-bar-track{flex:1 1;height:6px;border-radius:var(--radius-full);background:var(--color-border-light);overflow:hidden}.score-bar-fill{height:100%;border-radius:var(--radius-full);background:var(--color-accent);transition:width .6s var(--ease-out)}.feedback-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-md);padding:var(--space-md)}.feedback-card .feedback-header{display:flex;align-items:center;gap:var(--space-xs);margin-bottom:var(--space-sm)}.feedback-card .feedback-body{font-size:14px;color:var(--color-text-secondary);line-height:1.7}.feedback-card .feedback-tag{display:inline-flex;align-items:center;gap:4px;padding:2px 8px;border-radius:var(--radius-sm);font-size:12px;font-weight:500}.suggestion-group{margin-bottom:var(--space-lg)}.suggestion-group h4{font-size:15px;font-weight:600;color:var(--color-text);margin-bottom:var(--space-sm);padding:8px 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th{text-align:left;font-weight:500;color:var(--color-text-muted);background:var(--color-bg);border-bottom:1px solid var(--color-border)}.deduction-table td{border-bottom:1px solid var(--color-border-light);color:var(--color-text-secondary)}.transcript-segment{display:flex;gap:var(--space-sm);padding:8px 12px;line-height:1.7;font-size:14px;transition:background var(--duration-short)}.transcript-segment+.transcript-segment{border-top:1px solid var(--color-border-light)}.transcript-segment.highlight{background:#fff9e6}.transcript-time{font-size:12px;color:var(--color-text-muted);flex-shrink:0;min-width:36px;padding-top:2px}.report-header{display:flex;align-items:center;gap:var(--space-xl);padding:var(--space-xl);background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);margin-bottom:var(--space-xl);box-shadow:var(--shadow-sm)}.report-total{text-align:center;min-width:110px}.report-total-number{font-size:48px;font-weight:700;line-height:1;color:var(--color-accent)}.report-total-label{font-size:13px;color:var(--color-text-muted);margin-top:var(--space-xs)}.grid-2{grid-template-columns:repeat(2,1fr);grid-gap:var(--space-lg)}.grid-2,.grid-3{display:grid;gap:var(--space-lg)}.grid-3{grid-template-columns:repeat(3,1fr);grid-gap:var(--space-lg)}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);grid-gap:var(--space-lg);gap:var(--space-lg)}.state-message{padding:var(--space-3xl) var(--space-lg);text-align:center;color:var(--color-text-muted);font-size:14px}.loading-spinner{width:24px;height:24px;margin:0 auto var(--space-sm);border:2px solid var(--color-border);border-top-color:var(--color-accent);border-radius:50%;animation:spin .7s linear infinite}.history-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));grid-gap:var(--space-md);gap:var(--space-md)}.history-card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--space-lg);cursor:pointer;transition:all var(--duration-short)}.history-card:hover{border-color:var(--color-accent);box-shadow:var(--shadow-md);transform:translateY(-1px)}.history-card .card-title{font-size:15px;font-weight:600;color:var(--color-text);margin-bottom:var(--space-sm);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.history-card .card-meta{display:flex;flex-wrap:wrap;gap:var(--space-sm);font-size:13px;color:var(--color-text-muted);margin-bottom:var(--space-sm)}.history-card .card-meta span{display:flex;align-items:center;gap:4px}.history-card .card-footer{display:flex;align-items:center;justify-content:space-between;padding-top:var(--space-sm);border-top:1px solid var(--color-border-light)}.history-score{font-size:20px;font-weight:700;color:var(--color-accent)}.filter-bar{display:flex;gap:var(--space-sm);flex-wrap:wrap;margin-bottom:var(--space-lg)}.filter-bar select{width:auto;min-width:120px}.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.4);display:flex;align-items:center;justify-content:center;z-index:200;animation:fadeIn .15s ease}.modal{background:var(--color-surface);border-radius:var(--radius-lg);padding:var(--space-xl);width:100%;max-width:440px;box-shadow:var(--shadow-lg);animation:scaleIn .2s var(--ease-out)}.modal-title{font-size:18px;font-weight:600;margin-bottom:var(--space-lg)}.modal-body{display:flex;flex-direction:column;gap:var(--space-md)}@keyframes spin{to{transform:rotate(1turn)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes scaleIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}@media (max-width:768px){.container{padding:0 var(--space-md)}.stat-grid{grid-template-columns:repeat(2,1fr)}.grid-2,.grid-3,.grid-4,.history-grid{grid-template-columns:1fr}.report-header{flex-direction:column;text-align:center}.app-nav-inner{padding:0 var(--space-md)}.app-nav-links{display:none}}