.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, #667eea 0, #764ba2 100%);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,.output-card{background:white;border-radius:24px;overflow:hidden;border:1px solid var(--gray-200);margin-bottom:20px;transition:all 0.3s}.input-card:hover,.output-card:hover{box-shadow:0 8px 25px rgba(0,0,0,0.08)}.card-header{display:flex;justify-content:space-between;align-items:center;padding:16px 24px;background:linear-gradient(135deg, #f8fafc, #fff);border-bottom:1px solid var(--gray-200)}.card-title{display:flex;align-items:center;gap:10px;font-weight:600;color:var(--gray-700)}.card-title i{color:#3b82f6}.card-actions{display:flex;gap:8px}.action-btn-sm{background:transparent;border:none;padding:6px 12px;border-radius:30px;cursor:pointer;transition:all 0.2s;color:var(--gray-500);font-size:0.8rem}.action-btn-sm:hover{background:var(--gray-100);color:var(--primary-color)}.input-textarea{width:100%;min-height:200px;padding:20px;border:none;font-family:'Inter',monospace;font-size:0.95rem;line-height:1.6;resize:vertical;background:#1a1a2e;color:#e0e0e0}.input-textarea:focus{outline:none}.input-footer,.output-footer{padding:12px 20px;background:var(--gray-50);border-top:1px solid var(--gray-200);display:flex;justify-content:space-between;font-size:0.7rem;color:var(--gray-500)}.encoding-hint{color:#10b981}.convert-bar{display:flex;align-items:center;justify-content:center;gap:20px;padding:20px;background:linear-gradient(135deg, #f8fafc, #fff);border-radius:60px;margin-bottom:20px;flex-wrap:wrap}.convert-group{display:flex;flex-direction:column;gap:6px}.convert-group label{font-size:0.7rem;font-weight:600;color:var(--gray-500);letter-spacing:0.5px}.encoding-select{padding:10px 16px;border:1px solid var(--gray-200);border-radius:40px;background:white;font-size:0.85rem;cursor:pointer;min-width:160px}.convert-arrow{display:flex;flex-direction:column;align-items:center;gap:6px;color:var(--gray-400)}.convert-arrow button{background:var(--gray-100);border:none;width:36px;height:36px;border-radius:50%;cursor:pointer;transition:all 0.2s;color:var(--gray-600)}.convert-arrow button:hover{background:var(--primary-color);color:white}.convert-btn{background:linear-gradient(135deg, #3b82f6, #2563eb);border:none;padding:12px 32px;border-radius:50px;color:white;font-weight:600;cursor:pointer;transition:all 0.3s}.convert-btn:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(59,130,246,0.3)}.output-content{padding:20px;font-family:'Inter',monospace;font-size:0.95rem;line-height:1.6;background:#1a1a2e;color:#e0e0e0;min-height:150px;white-space:pre-wrap;word-break:break-all}.convert-status{color:#10b981}.hex-preview-card{background:white;border-radius:24px;overflow:hidden;border:1px solid var(--gray-200);margin-bottom:20px}.hex-content{padding:20px;font-family:'Fira Code',monospace;font-size:0.75rem;line-height:1.8;background:#1a1a2e;color:#a0a0c0;overflow-x:auto;white-space:pre-wrap;word-break:break-all}.encoding-table-card{background:white;border-radius:24px;overflow:hidden;border:1px solid var(--gray-200);margin-bottom:20px}.table-wrapper{max-height:300px;overflow-y:auto}.encoding-table{width:100%;border-collapse:collapse;font-size:0.8rem}.encoding-table th,.encoding-table td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--gray-200)}.encoding-table th{background:var(--gray-50);font-weight:600;position:sticky;top:0}.encoding-table td:nth-child(3){font-family:monospace}.empty-placeholder{text-align:center;color:var(--gray-400);padding:40px}.info-footer{background:var(--gray-50);border-radius:24px;padding:24px}.info-footer-header{display:flex;align-items:center;gap:10px;margin-bottom:20px;font-weight:600;color:var(--gray-700)}.info-grid{display:grid;grid-template-columns:repeat(4, 1fr);gap:20px}.info-item{display:flex;gap:12px;align-items:flex-start}.info-item i{font-size:1.2rem;color:#3b82f6;margin-top:2px}.info-content h4{font-size:0.85rem;margin-bottom:4px;color:var(--gray-800)}.info-content p{font-size:0.7rem;color:var(--gray-500);line-height:1.4}.ad-section{margin:20px 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-grid{grid-template-columns:repeat(2, 1fr)}.convert-bar{flex-direction:column;border-radius:32px}.convert-group{width:100%}.encoding-select{width:100%}.core-stats{gap:12px}.core-stat{padding:12px 20px}}@media (max-width:480px){.info-grid{grid-template-columns:1fr}.encoding-table th,.encoding-table td{padding:8px;font-size:0.7rem}}