.local-ip-section,.public-ip-section,.custom-ip-section{margin-bottom:32px}.local-ip-section h3,.public-ip-section h3{margin-bottom:16px;color:var(--gray-700);font-size:1.1rem}.ip-info-grid{display:grid;grid-template-columns:repeat(2, 1fr);gap:20px}.info-card{background:var(--gray-50);border-radius:var(--border-radius-lg);padding:20px;position:relative;border:1px solid var(--gray-200)}.info-label{font-size:0.8rem;color:var(--gray-500);margin-bottom:8px}.info-value{font-size:1.1rem;font-weight:600;font-family:monospace;color:var(--gray-800);word-break:break-all;padding-right:40px}.copy-ip{position:absolute;right:16px;top:50%;transform:translateY(-50%);background:transparent;border:none;color:var(--gray-500);cursor:pointer;padding:6px;border-radius:var(--border-radius-sm)}.copy-ip:hover{background:var(--gray-200);color:var(--primary-color)}.public-ip-controls{display:flex;align-items:center;gap:16px}.public-ip-result,.custom-ip-result{margin-top:20px;animation:fadeIn 0.3s ease}.result-card-ip{background:var(--gray-50);border-radius:var(--border-radius-lg);padding:20px;border:1px solid var(--gray-200)}.result-row{display:flex;align-items:center;gap:16px;padding:10px 0;border-bottom:1px dashed var(--gray-200)}.result-row:last-child{border-bottom:none}.result-label{width:80px;font-weight:500;color:var(--gray-600)}.result-value-ip{flex:1;font-family:monospace;color:var(--gray-800)}.copy-result-ip{background:transparent;border:none;color:var(--gray-500);cursor:pointer;padding:4px 8px;border-radius:var(--border-radius-sm)}.copy-result-ip:hover{background:var(--gray-200);color:var(--primary-color)}.custom-ip-input{display:flex;gap:12px;margin-top:16px}.custom-ip-input .input-field{flex:1}.ip-tools-section{margin:32px 0}.ip-tools-grid{display:grid;grid-template-columns:repeat(3, 1fr);gap:20px;margin-top:16px}.tool-card-ip{background:var(--gray-50);border-radius:var(--border-radius-lg);padding:16px;border:1px solid var(--gray-200)}.tool-card-ip h4{margin-bottom:12px;font-size:0.9rem;color:var(--gray-700)}.input-sm{width:100%;padding:8px 12px;border:1px solid var(--gray-300);border-radius:var(--border-radius-sm);margin-bottom:10px;font-size:0.85rem}.btn-secondary-sm{background:var(--gray-200);border:1px solid var(--gray-300);padding:6px 12px;border-radius:var(--border-radius-sm);cursor:pointer;font-size:0.8rem;width:100%}.btn-secondary-sm:hover{background:var(--gray-300)}.tool-result{margin-top:10px;padding:8px;background:white;border-radius:var(--border-radius-sm);font-family:monospace;font-size:0.8rem;word-break:break-all;display:none}.ip-knowledge{margin-top:24px}.knowledge-content{margin-top:16px;display:grid;grid-template-columns:repeat(2, 1fr);gap:12px}.knowledge-item{padding:8px 12px;background:var(--gray-50);border-radius:var(--border-radius-sm);font-size:0.85rem;color:var(--gray-600)}.loading-spinner{display:inline-block;width:24px;height:24px;border:2px solid var(--gray-300);border-top-color:var(--primary-color);border-radius:50%;animation:spin 0.6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fadeIn{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}@media (max-width:900px){.ip-info-grid{grid-template-columns:1fr}.ip-tools-grid{grid-template-columns:1fr}.knowledge-content{grid-template-columns:1fr}.result-row{flex-wrap:wrap}.result-label{width:auto}}