.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, #667eea, #764ba2);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:2rem;font-weight:700;background:linear-gradient(135deg, #1e293b, #667eea);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:12px}.tool-header p{color:var(--gray-500);font-size:0.95rem}.system-switch{display:flex;justify-content:center;gap:16px;margin-bottom:28px}.sys-btn{background:var(--gray-100);border:none;padding:10px 28px;border-radius:50px;font-size:0.9rem;font-weight:500;cursor:pointer;transition:all 0.3s;display:inline-flex;align-items:center;gap:8px;color:var(--gray-600)}.sys-btn.active{background:linear-gradient(135deg, #667eea, #764ba2);color:white;box-shadow:0 4px 12px rgba(102,126,234,0.3)}.sys-btn i{font-size:1rem}.shortcut-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;justify-content:center}.shortcut-tab{background:transparent;border:none;padding:8px 20px;border-radius:40px;font-size:0.85rem;font-weight:500;cursor:pointer;transition:all 0.3s;color:var(--gray-600)}.shortcut-tab i{margin-right:6px}.shortcut-tab.active{background:linear-gradient(135deg, #667eea, #764ba2);color:white;box-shadow:0 2px 8px rgba(102,126,234,0.25)}.shortcuts-container{background:white;border-radius:24px;border:1px solid var(--gray-200);overflow:hidden;margin-bottom:28px}.shortcuts-table{width:100%;border-collapse:collapse}.shortcuts-table th{background:var(--gray-50);padding:16px 20px;text-align:left;font-weight:600;color:var(--gray-700);border-bottom:1px solid var(--gray-200)}.shortcuts-table td{padding:14px 20px;border-bottom:1px solid var(--gray-100);color:var(--gray-600)}.shortcuts-table tr:last-child td{border-bottom:none}.shortcuts-table tr:hover td{background:var(--gray-50)}.shortcut-keys{font-family:'Fira Code',monospace;font-size:0.85rem;font-weight:500;color:#667eea;letter-spacing:0.5px}.shortcut-desc{font-size:0.85rem}.shortcut-icon{width:32px;color:var(--gray-400);font-size:1rem}.key-tester{background:linear-gradient(135deg, #f8fafc, #fff);border-radius:24px;border:1px solid var(--gray-200);overflow:hidden;margin-bottom:28px}.tester-header{display:flex;align-items:center;gap:10px;padding:16px 20px;background:var(--gray-50);border-bottom:1px solid var(--gray-200);font-weight:600;color:var(--gray-700)}.tester-hint{margin-left:auto;font-size:0.7rem;font-weight:normal;color:var(--gray-400)}.tester-area{padding:40px;text-align:center;cursor:pointer;transition:all 0.3s;min-height:180px;display:flex;align-items:center;justify-content:center}.tester-area:focus{outline:none;background:var(--gray-50)}.tester-placeholder i{font-size:48px;color:var(--gray-300);margin-bottom:16px}.tester-placeholder p{color:var(--gray-400);font-size:0.85rem}.tester-result{display:flex;align-items:center;gap:20px;animation:fadeIn 0.3s ease}.result-icon{width:60px;height:60px;background:linear-gradient(135deg, #d1fae5, #a7f3d0);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;color:#10b981}.result-info{text-align:left}.result-label{display:block;font-size:0.7rem;color:var(--gray-500);margin-bottom:4px}.result-key{font-size:1.3rem;font-weight:700;color:#667eea;font-family:monospace}.info-section{background:var(--gray-50);border-radius:20px;padding:20px}.info-grid{display:grid;grid-template-columns:repeat(4, 1fr);gap:16px;margin-top:12px}.info-item{display:flex;align-items:center;gap:10px;font-size:0.8rem;color:var(--gray-600);padding:8px 12px;background:white;border-radius:12px}.info-item i{color:#667eea;width:24px}.empty-state{text-align:center;padding:60px;color:var(--gray-400)}.empty-state i{font-size:48px;margin-bottom:16px;opacity:0.5}@keyframes fadeIn{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}@media (max-width:768px){.shortcuts-table th,.shortcuts-table td{padding:10px 12px}.shortcut-keys{font-size:0.7rem}.shortcut-desc{font-size:0.7rem}.info-grid{grid-template-columns:repeat(2, 1fr)}.tester-area{padding:30px 20px}.system-switch{gap:12px}.sys-btn{padding:8px 20px;font-size:0.8rem}}@media (max-width:480px){.info-grid{grid-template-columns:1fr}.shortcut-tab{padding:6px 14px;font-size:0.75rem}}