:root{--gold:#b8860b;--gold-light:#d4a843;--gold-bg:#fdf8ed;--gold-border:#e8d5a3;--bg:#fafaf7;--card-bg:#fff;--text:#2d2a26;--text-secondary:#6b6560;--text-muted:#9e9792;--border:#e8e3dd;--success:#2e7d32;--warning:#b8860b;--error:#c62828;--info:#1a73e8;--radius:12px;--shadow-sm:0 1px 3px #0000000f;--shadow-md:0 4px 12px #00000014;--shadow-lg:0 8px 24px #0000001a}*{box-sizing:border-box;margin:0;padding:0}body{background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,sans-serif;line-height:1.6}.app{flex-direction:column;min-height:100vh;display:flex}.app-header{color:#fff;z-index:100;background:linear-gradient(135deg,#a67c00,#b8860b,#c99c20);justify-content:space-between;align-items:center;gap:12px;padding:12px 24px;display:flex;position:sticky;top:0;box-shadow:0 2px 12px #b8860b4d}.header-back a{color:#fffc;white-space:nowrap;font-size:13px;text-decoration:none;transition:color .2s}.header-back a:hover{color:#fff}.header-title{flex-shrink:0;align-items:center;gap:8px;display:flex}.header-title h1{letter-spacing:.5px;font-size:20px;font-weight:700}.header-subtitle{color:#ffffffbf;white-space:nowrap;font-size:11px}.header-right{-webkit-overflow-scrolling:touch;gap:4px;display:flex;overflow-x:auto}.header-right button{cursor:pointer;white-space:nowrap;color:#ffffffd9;background:#ffffff1f;border:none;border-radius:8px;padding:6px 12px;font-size:13px;transition:all .2s}.header-right button:hover{color:#fff;background:#ffffff40}.header-right button.active{color:var(--gold);background:#ffffffeb;font-weight:600}.app-main{flex:1;width:100%;max-width:800px;margin:0 auto;padding:24px}.welcome-card{background:linear-gradient(135deg, var(--gold-bg), #fff8e1);border:1px solid var(--gold-border);border-radius:var(--radius);text-align:center;margin-bottom:24px;padding:28px 24px}.welcome-card h2{color:var(--gold);margin-bottom:10px;font-size:22px}.welcome-card p{color:var(--text-secondary);margin-bottom:20px;font-size:14px;line-height:1.7}.feature-grid{grid-template-columns:repeat(3,1fr);gap:12px;margin-top:20px;display:grid}.feature-card{border-radius:var(--radius);text-align:center;border:1px solid var(--gold-border);cursor:pointer;background:#fff;padding:20px 16px;transition:all .2s}.feature-card:hover{box-shadow:var(--shadow-md);border-color:var(--gold);transform:translateY(-2px)}.feature-card .feature-icon{margin-bottom:10px;font-size:36px}.feature-card .feature-label{color:var(--gold);margin-bottom:6px;font-size:15px;font-weight:600}.feature-card .feature-desc{color:var(--text-muted);font-size:12px;line-height:1.5}.card{background:var(--card-bg);border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow-sm);margin-bottom:16px;padding:20px}.card-title{color:var(--text);margin-bottom:14px;font-size:16px;font-weight:600}.btn{cursor:pointer;border:none;border-radius:8px;align-items:center;gap:4px;padding:8px 20px;font-size:14px;font-weight:600;transition:all .2s;display:inline-flex}.btn-gold{color:#fff;background:linear-gradient(135deg,#a67c00,#b8860b);box-shadow:0 2px 6px #b8860b4d}.btn-gold:hover{transform:translateY(-1px);box-shadow:0 4px 12px #b8860b66}.btn-secondary{color:var(--text-secondary);background:#f1f0ec}.btn-secondary:hover{background:#e5e2dd}.btn-sm{padding:4px 12px;font-size:12px}.btn-block{justify-content:center;width:100%;padding:12px}.btn-success{background:var(--success);color:#fff}.btn-success:hover{opacity:.9}.btn-danger{background:var(--error);color:#fff}.btn-danger:hover{opacity:.9}.btn-icon{cursor:pointer;border:none;border-radius:50%;justify-content:center;align-items:center;width:36px;height:36px;font-size:16px;transition:all .2s;display:inline-flex}.btn-icon:hover{transform:scale(1.1)}textarea,select,input[type=text],input[type=number],input[type=tel],input[type=date]{border:1px solid var(--border);width:100%;color:var(--text);background:#fff;border-radius:8px;padding:8px 12px;font-family:inherit;font-size:14px;transition:border-color .2s}textarea:focus,select:focus,input:focus{border-color:var(--gold);outline:none;box-shadow:0 0 0 3px #b8860b1f}.form-group{margin-bottom:14px}.form-label{color:var(--text-secondary);margin-bottom:4px;font-size:13px;font-weight:600;display:block}.form-row{grid-template-columns:1fr 1fr;gap:12px;display:grid}.record-btn{border:4px solid var(--gold);cursor:pointer;background:#fff;border-radius:50%;justify-content:center;align-items:center;width:100px;height:100px;margin:20px auto;font-size:40px;transition:all .3s;display:flex;position:relative}.record-btn:hover{transform:scale(1.05);box-shadow:0 0 20px #b8860b4d}.record-btn.recording{border-color:var(--error);background:#ffebee;animation:1.5s infinite pulse}@keyframes pulse{0%{box-shadow:0 0 #c6282866}70%{box-shadow:0 0 0 20px #c6282800}to{box-shadow:0 0 #c6282800}}.record-btn .wave{display:none}.record-btn.recording .wave{color:var(--error);font-size:12px;display:block;position:absolute;bottom:-30px}.voice-visual{justify-content:center;align-items:center;gap:3px;height:40px;margin:10px 0;display:flex}.voice-bar{background:var(--gold);border-radius:2px;width:4px;animation:.5s ease-in-out infinite alternate voiceBar}.voice-bar:first-child{height:20px;animation-delay:0s}.voice-bar:nth-child(2){height:30px;animation-delay:.1s}.voice-bar:nth-child(3){height:25px;animation-delay:.2s}.voice-bar:nth-child(4){height:35px;animation-delay:.15s}.voice-bar:nth-child(5){height:20px;animation-delay:.3s}.voice-bar:nth-child(6){height:28px;animation-delay:50ms}.voice-bar:nth-child(7){height:32px;animation-delay:.25s}@keyframes voiceBar{0%{transform:scaleY(.5)}to{transform:scaleY(1)}}.grade-badge{border-radius:20px;align-items:center;gap:6px;padding:4px 12px;font-size:13px;font-weight:700;display:inline-flex}.grade-excellent{color:#2e7d32;background:#e8f5e9}.grade-good{color:#1565c0;background:#e3f2fd}.grade-fair{color:#e65100;background:#fff3e0}.grade-poor{color:#c62828;background:#ffebee}table{border-collapse:collapse;width:100%;font-size:13px}th,td{text-align:left;border-bottom:1px solid var(--border);padding:10px 12px}th{background:var(--gold-bg);color:var(--text-secondary);font-size:12px;font-weight:600}tr:hover{background:#faf8f2}.table-empty{text-align:center;color:var(--text-muted);padding:30px;font-size:14px}.result-content{border:1px solid var(--gold-border);white-space:pre-wrap;background:#faf8f2;border-radius:8px;margin:12px 0;padding:16px;font-size:14px;line-height:1.8}.suggestion-item{border-radius:6px;margin:4px 0;padding:8px 12px;font-size:13px}.suggestion-item.suggestion-high{border-left:3px solid var(--error);background:#fce4ec}.suggestion-item.suggestion-mid{border-left:3px solid var(--warning);background:#fff3e0}.suggestion-item.suggestion-low{border-left:3px solid var(--success);background:#e8f5e9}.upload-area{border:2px dashed var(--gold-border);border-radius:var(--radius);text-align:center;cursor:pointer;background:#fff;padding:40px 20px;transition:all .2s}.upload-area:hover{border-color:var(--gold);background:var(--gold-bg)}.upload-area .upload-icon{margin-bottom:10px;font-size:48px}.upload-area .upload-text{color:var(--text-secondary);font-size:14px}.upload-area .upload-hint{color:var(--text-muted);margin-top:6px;font-size:12px}.file-preview{background:var(--gold-bg);border:1px solid var(--gold-border);border-radius:8px;align-items:center;gap:10px;margin:8px 0;padding:10px 14px;display:flex}.file-preview .file-icon{font-size:24px}.file-preview .file-info{flex:1;font-size:13px}.file-preview .file-info .file-name{color:var(--text);font-weight:600}.file-preview .file-info .file-size{color:var(--text-muted);font-size:12px}.status-bar{border-radius:8px;align-items:center;gap:8px;margin:8px 0;padding:8px 14px;font-size:13px;display:flex}.status-loading{color:#1565c0;background:#e3f2fd}.status-success{color:#2e7d32;background:#e8f5e9}.status-error{color:#c62828;background:#ffebee}.status-warning{color:#e65100;background:#fff3e0}.search-bar{gap:8px;margin-bottom:16px;display:flex}.search-bar input{flex:1}.app-footer{text-align:center;color:var(--text-muted);border-top:1px solid var(--border);padding:16px;font-size:11px}.loading-spinner{justify-content:center;align-items:center;padding:30px;display:flex}.spinner{border:3px solid var(--gold-border);border-top:3px solid var(--gold);border-radius:50%;width:30px;height:30px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.privacy-notice{color:#33691e;background:#f1f8e9;border:1px solid #c5e1a5;border-radius:8px;align-items:center;gap:8px;margin:12px 0;padding:10px 14px;font-size:12px;display:flex}@media (width<=768px){.app-header{flex-wrap:wrap;padding:10px 14px}.header-title h1{font-size:16px}.header-subtitle{display:none}.header-right{order:3;width:100%;margin-top:4px}.header-right button{text-align:center;flex:1;padding:5px 10px;font-size:12px}.app-main{padding:14px}.feature-grid,.form-row{grid-template-columns:1fr}.welcome-card{padding:20px 16px}.welcome-card h2{font-size:18px}.record-btn{width:80px;height:80px;font-size:32px}}@media (width<=480px){.card{padding:14px}.feature-card{padding:16px 12px}.result-content{padding:12px;font-size:13px}}