.tool-header{text-align:center;margin-bottom:40px}.header-badge{display:flex;justify-content:center;gap:12px;margin-bottom:24px;flex-wrap:wrap}.badge{background:linear-gradient(135deg, #7c3aed, #6d28d9);color:white;padding:6px 18px;border-radius:40px;font-size:0.75rem;font-weight:500;box-shadow:0 2px 8px rgba(0,0,0,0.1)}.tool-header h1{font-size:2.2rem;font-weight:800;background:linear-gradient(135deg, #1e293b, #7c3aed);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:12px}.tool-header p{color:var(--gray-500);font-size:1rem}.stats-cards{display:flex;justify-content:center;gap:24px;margin-bottom:32px;flex-wrap:wrap}.stat-card{background:white;border-radius:60px;padding:16px 28px;display:flex;align-items:center;gap:16px;box-shadow:0 4px 15px rgba(0,0,0,0.05);border:1px solid var(--gray-200)}.stat-icon{width:48px;height:48px;background:linear-gradient(135deg, #ede9fe, #f5f3ff);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#7c3aed;font-size:1.3rem}.stat-info{text-align:left}.stat-value{display:block;font-size:1.5rem;font-weight:700;color:var(--gray-800)}.stat-label{font-size:0.7rem;color:var(--gray-500)}.detect-tabs{display:flex;gap:16px;margin-bottom:32px;justify-content:center}.detect-tab{background:transparent;border:none;padding:14px 28px;cursor:pointer;transition:all 0.3s;border-radius:20px;text-align:center;min-width:160px}.detect-tab i{font-size:1.3rem;color:var(--gray-400);margin-bottom:8px;display:block}.detect-tab span{display:block;font-weight:600;color:var(--gray-600);margin-bottom:4px}.detect-tab small{font-size:0.65rem;color:var(--gray-400)}.detect-tab.active{background:linear-gradient(135deg, #7c3aed, #6d28d9);box-shadow:0 8px 25px rgba(124,58,237,0.3)}.detect-tab.active i,.detect-tab.active span,.detect-tab.active small{color:white}.input-card{background:linear-gradient(135deg, #fff, #f8fafc);border-radius:24px;padding:20px;margin-bottom:24px;border:1px solid var(--gray-200);box-shadow:0 8px 25px rgba(0,0,0,0.05)}.input-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;flex-wrap:wrap;gap:12px}.input-header span{font-weight:600;color:var(--gray-700)}.input-actions{display:flex;gap:8px}.action-btn-sm{background:transparent;border:1px solid var(--gray-200);padding:6px 12px;border-radius:30px;cursor:pointer;font-size:0.7rem;transition:all 0.2s}.action-btn-sm:hover{background:#7c3aed;border-color:#7c3aed;color:white}.detect-textarea{width:100%;min-height:200px;padding:16px;font-family:'Inter',monospace;font-size:0.9rem;line-height:1.6;border:1px solid var(--gray-200);border-radius:16px;resize:vertical;background:#1a1a2e;color:#e0e0e0}.detect-textarea:focus{outline:none;border-color:#7c3aed}.upload-area{border:2px dashed var(--gray-300);border-radius:20px;padding:40px;text-align:center;cursor:pointer;transition:all 0.3s}.upload-area:hover{border-color:#7c3aed;background:var(--gray-50)}.upload-area i{font-size:48px;color:var(--gray-400);margin-bottom:12px}.image-preview{margin-top:16px;text-align:center}.image-preview img{max-width:100%;max-height:300px;border-radius:12px}.trace-input{width:100%;padding:16px;border:1px solid var(--gray-200);border-radius:16px;font-size:0.9rem}.detect-btn{width:100%;background:linear-gradient(135deg, #7c3aed, #6d28d9);border:none;padding:14px;border-radius:50px;color:white;font-weight:600;cursor:pointer;transition:all 0.3s}.detect-btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(124,58,237,0.3)}.detect-result{margin-top:24px;animation:fadeIn 0.4s ease}.confidence-meter{background:white;border-radius:24px;padding:24px;margin-bottom:24px;text-align:center;border:1px solid var(--gray-200)}.meter-title{font-size:0.85rem;color:var(--gray-500);margin-bottom:16px}.meter-wrapper{display:flex;align-items:center;gap:20px;justify-content:center;flex-wrap:wrap}.meter-bar{flex:1;max-width:400px;height:12px;background:var(--gray-200);border-radius:6px;overflow:hidden}.meter-fill{height:100%;background:linear-gradient(90deg, #7c3aed, #c084fc);border-radius:6px;width:0%;transition:width 0.5s ease}.meter-value{font-size:1.8rem;font-weight:700;color:#7c3aed}.meter-label{margin-top:12px;font-size:0.8rem;padding:4px 12px;border-radius:20px;display:inline-block}.meter-label.high{background:#d1fae5;color:#065f46}.meter-label.medium{background:#fef3c7;color:#92400e}.meter-label.low{background:#dbeafe;color:#1e40af}.analysis-grid{display:grid;grid-template-columns:repeat(2, 1fr);gap:20px;margin-bottom:24px}.analysis-card{background:white;border-radius:20px;overflow:hidden;border:1px solid var(--gray-200)}.card-header{display:flex;align-items:center;gap:8px;padding:14px 16px;background:linear-gradient(135deg, #f8fafc, #fff);border-bottom:1px solid var(--gray-200);font-weight:600;font-size:0.85rem}.feature-list,.watermark-list,.trace-list,.advice-list{padding:16px}.feature-item{display:flex;justify-content:space-between;align-items:center;padding:10px 0;border-bottom:1px solid var(--gray-100)}.feature-name{font-size:0.8rem;color:var(--gray-600)}.feature-score{font-size:0.8rem;font-weight:600}.feature-score.high{color:#ef4444}.feature-score.medium{color:#f59e0b}.feature-score.low{color:#10b981}.watermark-item{padding:8px 0;border-bottom:1px solid var(--gray-100);display:flex;align-items:center;gap:10px}.watermark-icon{width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center}.watermark-icon.found{background:#d1fae5;color:#065f46}.watermark-icon.not-found{background:#fee2e2;color:#991b1b}.watermark-text{flex:1;font-size:0.8rem}.trace-item{padding:8px 0;border-bottom:1px solid var(--gray-100);font-size:0.8rem}.advice-item{padding:8px 0;border-bottom:1px solid var(--gray-100);display:flex;gap:8px;font-size:0.75rem}.advice-icon{color:#f59e0b}.chart-container{background:white;border-radius:20px;padding:16px;border:1px solid var(--gray-200);height:250px}.ai-knowledge{margin-top:24px;background:linear-gradient(135deg, #f5f3ff, #ede9fe);border-radius:24px;padding:20px}.knowledge-header{display:flex;align-items:center;gap:10px;margin-bottom:16px;font-weight:600;color:var(--gray-700)}.knowledge-grid{display:grid;grid-template-columns:repeat(4, 1fr);gap:16px}.knowledge-card{background:white;border-radius:16px;padding:16px;text-align:center;transition:all 0.3s}.knowledge-card:hover{transform:translateY(-4px);box-shadow:0 8px 20px rgba(0,0,0,0.08)}.knowledge-card i{font-size:1.5rem;color:#7c3aed;margin-bottom:10px}.knowledge-card h4{font-size:0.85rem;margin-bottom:6px}.knowledge-card p{font-size:0.7rem;color:var(--gray-500)}@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@media (max-width:900px){.analysis-grid{grid-template-columns:1fr}.knowledge-grid{grid-template-columns:repeat(2, 1fr)}.detect-tab{min-width:auto;padding:10px 16px}}@media (max-width:480px){.stats-cards{gap:12px}.stat-card{padding:12px 20px}.stat-value{font-size:1.2rem}.knowledge-grid{grid-template-columns:1fr}.meter-value{font-size:1.2rem}}