.density-container{display:grid;grid-template-columns:380px 1fr;gap:24px;margin-bottom:24px}.input-section{background:linear-gradient(135deg, #fff, #f8fafc);border-radius:24px;padding:20px;border:1px solid rgba(0,0,0,0.05);box-shadow:0 4px 20px rgba(0,0,0,0.03)}.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--gray-200)}.header-title{display:flex;align-items:center;gap:10px;font-weight:600;color:var(--gray-700)}.badge-count{background:var(--primary-color);color:white;font-size:0.65rem;padding:2px 8px;border-radius:20px}.header-actions{display:flex;gap:8px}.keyword-textarea{width:100%;min-height:200px;padding:16px;border:1px solid var(--gray-200);border-radius:16px;font-family:'Inter',monospace;font-size:0.9rem;line-height:1.6;resize:vertical;transition:all 0.3s}.keyword-textarea:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px rgba(59,130,246,0.1)}.analyze-options{margin:20px 0;padding:16px;background:var(--gray-50);border-radius:16px}.option-row{margin-bottom:16px}.option-row label{display:block;font-size:0.75rem;font-weight:600;color:var(--gray-500);margin-bottom:8px}.range-group{display:flex;align-items:center;gap:16px}.range-group input{flex:1}.checkbox-group{display:flex;gap:20px;flex-wrap:wrap}.checkbox-label{display:flex;align-items:center;gap:6px;cursor:pointer;font-size:0.8rem}.mode-buttons{display:flex;gap:12px}.mode-btn{background:white;border:1px solid var(--gray-200);padding:8px 20px;border-radius:40px;font-size:0.8rem;cursor:pointer;transition:all 0.2s}.mode-btn.active{background:var(--primary-color);border-color:var(--primary-color);color:white}.analyze-btn{width:100%;padding:12px;margin-top:8px;border-radius:50px}.result-section{background:var(--gray-50);border-radius:24px;padding:20px}.summary-cards{display:grid;grid-template-columns:repeat(4, 1fr);gap:16px;margin-bottom:24px}.summary-card{background:white;border-radius:20px;padding:16px;display:flex;align-items:center;gap:12px;transition:all 0.3s;border:1px solid var(--gray-200)}.summary-card:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(0,0,0,0.05)}.card-icon{width:48px;height:48px;background:linear-gradient(135deg, #e0e7ff, #f0f4ff);border-radius:16px;display:flex;align-items:center;justify-content:center;color:var(--primary-color);font-size:1.3rem}.card-info{flex:1}.card-label{display:block;font-size:0.7rem;color:var(--gray-500);margin-bottom:4px}.card-value{display:block;font-size:1.5rem;font-weight:700;color:var(--gray-800)}.chart-section{background:white;border-radius:20px;padding:16px;margin-bottom:24px;border:1px solid var(--gray-200)}.chart-container{height:280px;margin-top:16px;position:relative}.tab-buttons{display:flex;gap:8px}.chart-tab{background:transparent;border:none;padding:4px 12px;border-radius:20px;font-size:0.7rem;cursor:pointer;color:var(--gray-500)}.chart-tab.active{background:var(--primary-color);color:white}.keyword-table-section{background:white;border-radius:20px;padding:16px;margin-bottom:24px;border:1px solid var(--gray-200)}.table-wrapper{max-height:400px;overflow-x:auto;margin-top:16px}.keyword-table{width:100%;border-collapse:collapse;font-size:0.8rem}.keyword-table th,.keyword-table td{padding:12px 10px;text-align:center;border-bottom:1px solid var(--gray-200)}.keyword-table th{background:var(--gray-50);font-weight:600;color:var(--gray-700);position:sticky;top:0}.keyword-table td:first-child,.keyword-table th:first-child{width:50px}.keyword-table td:nth-child(2){font-weight:500;color:var(--primary-color);text-align:left}.keyword-table tr:hover{background:var(--gray-50)}.density-bar{display:inline-block;height:6px;background:var(--primary-color);border-radius:3px;margin-left:8px}.recommend-badge{display:inline-block;padding:2px 8px;border-radius:20px;font-size:0.65rem;font-weight:500}.recommend-good{background:#d1fae5;color:#065f46}.recommend-warning{background:#fef3c7;color:#92400e}.recommend-danger{background:#fee2e2;color:#991b1b}.empty-placeholder{text-align:center;color:var(--gray-400);padding:40px}.wordcloud-section{background:white;border-radius:20px;padding:16px;margin-bottom:24px;border:1px solid var(--gray-200)}.wordcloud-container{min-height:200px;display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:12px;padding:20px}.cloud-word{display:inline-block;cursor:pointer;transition:all 0.2s}.cloud-word:hover{transform:scale(1.1);color:var(--primary-color) !important}.seo-tips{background:linear-gradient(135deg, #e0e7ff, #f0f4ff);border-radius:20px;padding:16px;border:1px solid #c7d2fe}.tips-content{margin-top:12px}.tip-item{display:flex;align-items:center;gap:10px;padding:10px 0;border-bottom:1px solid rgba(0,0,0,0.05)}.tip-item:last-child{border-bottom:none}.tip-icon{width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center}.tip-icon.success{background:#d1fae5;color:#065f46}.tip-icon.warning{background:#fef3c7;color:#92400e}.tip-icon.info{background:#dbeafe;color:#1e40af}.tip-text{flex:1;font-size:0.8rem}@media (max-width:1024px){.density-container{grid-template-columns:1fr}.summary-cards{grid-template-columns:repeat(2, 1fr)}}@media (max-width:768px){.summary-cards{grid-template-columns:1fr}.keyword-table th,.keyword-table td{font-size:0.7rem;padding:8px 4px}.analyze-options{padding:12px}.mode-buttons{flex-wrap:wrap}}