.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, #3b82f6, #1d4ed8);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, #3b82f6);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:12px}.tool-header p{color:var(--gray-500);font-size:1rem}.core-stats{display:flex;justify-content:center;gap:24px;margin-bottom:32px;flex-wrap:wrap}.core-stat{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)}.core-stat-icon{width:48px;height:48px;background:linear-gradient(135deg, #e0e7ff, #f0f4ff);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#3b82f6;font-size:1.3rem}.core-stat-info{text-align:left}.core-stat-value{display:block;font-size:1.5rem;font-weight:700;color:var(--gray-800)}.core-stat-label{font-size:0.7rem;color:var(--gray-500)}.input-card{background:linear-gradient(135deg, #fff, #f8fafc);border-radius:80px;padding:8px;box-shadow:0 20px 40px -15px rgba(0,0,0,0.1);border:1px solid rgba(0,0,0,0.05);margin-bottom:24px}.input-wrapper{display:flex;align-items:center;gap:12px;background:white;border-radius:80px;padding:6px 6px 6px 24px}.input-icon{color:#3b82f6;font-size:1.1rem}.url-input{flex:1;border:none;padding:16px 0;font-size:1rem;background:transparent}.url-input:focus{outline:none}.check-btn{background:linear-gradient(135deg, #3b82f6, #1d4ed8);border:none;padding:14px 32px;border-radius:60px;color:white;font-weight:600;cursor:pointer;transition:all 0.3s}.check-btn:hover{transform:translateY(-2px);box-shadow:0 10px 25px rgba(59,130,246,0.4)}.input-tips{display:flex;justify-content:center;gap:24px;margin-top:16px;flex-wrap:wrap}.tip{font-size:0.7rem;color:var(--gray-500);display:flex;align-items:center;gap:6px}.tip i{color:#10b981}.loading-state{text-align:center;padding:60px;background:var(--gray-50);border-radius:32px}.loading-spinner{width:50px;height:50px;border:3px solid var(--gray-200);border-top-color:#3b82f6;border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 20px}.loading-steps{display:flex;justify-content:center;gap:24px;margin-top:20px;flex-wrap:wrap}.loading-steps span{font-size:0.8rem;color:var(--gray-500);opacity:0.5}.loading-steps span.active{opacity:1;color:#3b82f6}@keyframes spin{to{transform:rotate(360deg)}}.seo-result{animation:fadeIn 0.4s ease}.score-ring{display:flex;align-items:center;justify-content:center;gap:40px;margin-bottom:32px;flex-wrap:wrap}.ring-chart{position:relative;width:160px;height:160px}.ring-text{position:absolute;top:50%;left:50%;transform:translate(-50%, -50%);text-align:center}.ring-score{display:block;font-size:2rem;font-weight:700;color:var(--gray-800)}.ring-label{font-size:0.7rem;color:var(--gray-500)}.score-grade{font-size:1.2rem;font-weight:600;padding:8px 24px;border-radius:40px}.score-grade.excellent{background:#d1fae5;color:#065f46}.score-grade.good{background:#dbeafe;color:#1e40af}.score-grade.fair{background:#fef3c7;color:#92400e}.score-grade.poor{background:#fee2e2;color:#991b1b}.seo-metrics{margin-bottom:32px}.seo-metrics h3{margin-bottom:20px;font-size:1.1rem;display:flex;align-items:center;gap:8px}.metrics-grid{display:grid;grid-template-columns:repeat(auto-fill, minmax(280px, 1fr));gap:16px}.metric-card{background:white;border-radius:20px;padding:16px;border:1px solid var(--gray-200);transition:all 0.3s}.metric-card:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(0,0,0,0.08)}.metric-header{display:flex;align-items:center;gap:10px;margin-bottom:12px}.metric-icon{width:36px;height:36px;border-radius:12px;display:flex;align-items:center;justify-content:center}.metric-icon.success{background:#d1fae5;color:#065f46}.metric-icon.warning{background:#fef3c7;color:#92400e}.metric-icon.error{background:#fee2e2;color:#991b1b}.metric-title{font-weight:600;flex:1}.metric-status{font-size:0.7rem;padding:2px 10px;border-radius:20px}.metric-status.pass{background:#d1fae5;color:#065f46}.metric-status.warning{background:#fef3c7;color:#92400e}.metric-status.fail{background:#fee2e2;color:#991b1b}.metric-desc{font-size:0.7rem;color:var(--gray-500);line-height:1.4}.seo-detail{background:white;border-radius:24px;overflow:hidden;border:1px solid var(--gray-200)}.detail-tabs{display:flex;gap:4px;padding:16px 20px 0;background:var(--gray-50);border-bottom:1px solid var(--gray-200);flex-wrap:wrap}.detail-tab{background:transparent;border:none;padding:10px 20px;cursor:pointer;font-size:0.85rem;font-weight:500;color:var(--gray-600);border-radius:30px;transition:all 0.2s}.detail-tab.active{background:white;color:#3b82f6;box-shadow:0 -2px 8px rgba(0,0,0,0.02)}.detail-panel{padding:24px}.info-card{display:flex;flex-direction:column;gap:16px}.info-row{display:flex;align-items:flex-start;gap:16px;padding:8px 0;border-bottom:1px solid var(--gray-100)}.info-label{width:120px;font-size:0.8rem;font-weight:500;color:var(--gray-600)}.info-value{flex:1;font-size:0.85rem;color:var(--gray-800);word-break:break-all}.suggestions-list{display:flex;flex-direction:column;gap:12px}.suggestion-item{display:flex;align-items:flex-start;gap:12px;padding:12px;background:var(--gray-50);border-radius:16px}.suggestion-item.critical{background:#fee2e2}.suggestion-item.warning{background:#fef3c7}.suggestion-item.info{background:#dbeafe}.suggestion-icon{font-size:1.1rem}.suggestion-content{flex:1}.suggestion-title{font-weight:600;font-size:0.85rem;margin-bottom:4px}.suggestion-desc{font-size:0.75rem;color:var(--gray-600)}.seo-knowledge{margin-top:40px;background:linear-gradient(135deg, #f0f4ff, #e8edf8);border-radius:28px;padding:24px}.knowledge-header{display:flex;align-items:center;gap:10px;margin-bottom:20px;font-weight:600;color:var(--gray-700)}.knowledge-grid{display:grid;grid-template-columns:repeat(4, 1fr);gap:20px}.knowledge-card{background:white;border-radius:20px;padding:20px;text-align:center;transition:all 0.3s}.knowledge-card:hover{transform:translateY(-4px);box-shadow:0 10px 25px rgba(0,0,0,0.08)}.knowledge-card i{font-size:1.8rem;color:#3b82f6;margin-bottom:12px}.knowledge-card h4{font-size:0.9rem;margin-bottom:8px}.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){.metrics-grid{grid-template-columns:1fr}.knowledge-grid{grid-template-columns:repeat(2, 1fr)}.loading-steps{flex-direction:column;align-items:center}}@media (max-width:768px){.input-wrapper{flex-direction:column;border-radius:30px;padding:20px}.input-card{border-radius:30px}.check-btn{width:100%}.knowledge-grid{grid-template-columns:1fr}.info-row{flex-direction:column;gap:4px}.info-label{width:auto}}