.tool-header{text-align:center;margin-bottom:32px}.header-badge{display:flex;justify-content:center;gap:12px;margin-bottom:20px;flex-wrap:wrap}.badge{background:linear-gradient(135deg, #e0e7ff, #f0f4ff);color:var(--primary-color);padding:6px 16px;border-radius:40px;font-size:0.75rem;font-weight:500}.tool-header h1{font-size:2rem;font-weight:700;margin-bottom:12px;color:var(--gray-800)}.tool-header p{color:var(--gray-500);font-size:1rem}.category-nav{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:32px;justify-content:center;border-bottom:1px solid var(--gray-200);padding-bottom:16px}.cat-nav-btn{background:transparent;border:none;padding:10px 20px;border-radius:40px;cursor:pointer;transition:all 0.2s;display:flex;align-items:center;gap:8px;font-size:0.9rem;color:var(--gray-600)}.cat-nav-btn:hover{background:var(--gray-100);color:var(--gray-800)}.cat-nav-btn.active{background:var(--primary-color);color:white;box-shadow:0 2px 8px rgba(59,130,246,0.3)}.converter-grid{margin-bottom:40px}.converter-card{background:white;border-radius:24px;box-shadow:0 4px 20px rgba(0,0,0,0.05);border:1px solid var(--gray-200);overflow:hidden}.card-header{background:linear-gradient(135deg, #f8fafc, #fff);padding:20px 24px;border-bottom:1px solid var(--gray-200);display:flex;align-items:center;gap:12px}.card-header i{font-size:1.5rem;color:var(--primary-color)}.card-header h2{font-size:1.2rem;font-weight:600;margin:0;flex:1}.badge-new{background:#10b981;color:white;padding:2px 10px;border-radius:20px;font-size:0.7rem}.converter-body{padding:24px}.input-group{display:flex;gap:16px;align-items:center;flex-wrap:wrap;margin-bottom:24px}.input-wrapper{flex:1;display:flex;flex-direction:column;gap:8px}.converter-input{width:100%;padding:14px 16px;border:1px solid var(--gray-300);border-radius:12px;font-size:1rem;font-family:monospace;transition:all 0.2s}.converter-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px rgba(59,130,246,0.1)}.converter-select{padding:12px 16px;border:1px solid var(--gray-300);border-radius:12px;background:white;font-size:0.9rem;cursor:pointer}.swap-icon{width:44px;height:44px;background:var(--gray-100);border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all 0.2s;color:var(--gray-600);flex-shrink:0}.swap-icon:hover{background:var(--primary-color);color:white;transform:rotate(180deg)}.common-values{background:var(--gray-50);border-radius:16px;padding:16px;margin-top:16px}.common-values h4{font-size:0.85rem;margin-bottom:12px;color:var(--gray-600);display:flex;align-items:center;gap:6px}.common-buttons{display:flex;flex-wrap:wrap;gap:10px}.common-btn{background:white;border:1px solid var(--gray-300);padding:8px 16px;border-radius:40px;font-size:0.8rem;cursor:pointer;transition:all 0.2s}.common-btn:hover{background:var(--primary-color);border-color:var(--primary-color);color:white}.common-temp{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px;justify-content:center}.temp-preset{background:var(--gray-100);border:none;padding:10px 20px;border-radius:40px;font-size:0.85rem;cursor:pointer;transition:all 0.2s}.temp-preset:hover{background:var(--primary-color);color:white}.info-cards{display:grid;grid-template-columns:repeat(4, 1fr);gap:20px;margin-bottom:32px}.info-card{background:linear-gradient(135deg, #f8fafc, #fff);border-radius:16px;padding:20px;text-align:center;border:1px solid var(--gray-200)}.info-card i{font-size:1.8rem;color:var(--primary-color);margin-bottom:12px}.info-card h3{font-size:1rem;margin-bottom:8px}.info-card p{font-size:0.8rem;color:var(--gray-500)}.info-section{margin-top:24px}.info-content{padding:16px;background:var(--gray-50);border-radius:16px;font-size:0.85rem;color:var(--gray-600)}.ad-section{margin:30px 0 40px}.ad-banner{background:linear-gradient(135deg, #f5f5f5, #fff);border:1px solid var(--gray-200);border-radius:16px;padding:20px;text-align:center;position:relative}.ad-label{position:absolute;top:8px;right:12px;font-size:0.6rem;color:var(--gray-400)}.ad-content{color:var(--gray-500);font-size:0.85rem}@media (max-width:900px){.info-cards{grid-template-columns:repeat(2, 1fr)}.input-group{flex-direction:column}.swap-icon{transform:rotate(90deg)}.swap-icon:hover{transform:rotate(270deg)}.cat-nav-btn{padding:6px 14px;font-size:0.8rem}}@media (max-width:480px){.info-cards{grid-template-columns:1fr}.tool-header h1{font-size:1.5rem}.card-header{flex-wrap:wrap}}