.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, #8b5cf6, #6d28d9);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, #8b5cf6);-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, #ede9fe, #f5f3ff);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#8b5cf6;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)}.format-selector{background:linear-gradient(135deg, #f8fafc, #fff);border-radius:24px;padding:20px 24px;margin-bottom:24px;border:1px solid var(--gray-200)}.format-title{font-weight:600;font-size:0.85rem;color:var(--gray-700);margin-bottom:12px;display:flex;align-items:center;gap:8px}.format-buttons{display:flex;flex-wrap:wrap;gap:12px}.format-btn{background:white;border:1px solid var(--gray-200);padding:12px 20px;border-radius:60px;cursor:pointer;transition:all 0.3s;text-align:center;min-width:120px}.format-btn i{font-size:1rem;display:block;margin-bottom:6px;color:#8b5cf6}.format-btn span{display:block;font-weight:600;font-size:0.85rem;color:var(--gray-700)}.format-btn small{display:block;font-size:0.65rem;color:var(--gray-400)}.format-btn.active{background:linear-gradient(135deg, #8b5cf6, #6d28d9);border-color:#8b5cf6}.format-btn.active i,.format-btn.active span,.format-btn.active small{color:white}.dual-editor{display:grid;grid-template-columns:1fr auto 1fr;gap:24px;margin-bottom:24px}.editor-card{background:white;border-radius:24px;overflow:hidden;border:1px solid var(--gray-200);transition:all 0.3s}.editor-card:hover{box-shadow:0 8px 25px rgba(0,0,0,0.08)}.editor-header{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;background:linear-gradient(135deg, #f8fafc, #fff);border-bottom:1px solid var(--gray-200)}.editor-title{display:flex;align-items:center;gap:10px;font-weight:600;color:var(--gray-700)}.editor-title i{color:#8b5cf6}.lang-badge{background:#8b5cf6;color:white;padding:2px 10px;border-radius:20px;font-size:0.65rem}.editor-actions{display:flex;gap:8px}.action-btn{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:hover{background:var(--gray-100);color:#8b5cf6}.unicode-textarea{width:100%;min-height:200px;padding:20px;border:none;font-family:'Fira Code','Monaco',monospace;font-size:0.9rem;line-height:1.6;resize:vertical;background:#1a1a2e;color:#e0e0e0}.unicode-textarea:focus{outline:none}.editor-footer{display:flex;justify-content:space-between;align-items:center;padding:12px 20px;background:var(--gray-50);border-top:1px solid var(--gray-200);font-size:0.7rem;color:var(--gray-500)}.convert-btn-primary{background:linear-gradient(135deg, #8b5cf6, #6d28d9);border:none;padding:6px 18px;border-radius:30px;color:white;font-size:0.75rem;cursor:pointer;transition:all 0.2s}.convert-btn-primary:hover{transform:translateY(-1px);box-shadow:0 4px 12px rgba(139,92,246,0.3)}.vs-icon{display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:1.5rem;font-weight:700;color:#8b5cf6}.convert-result{background:linear-gradient(135deg, #f0fdf4, #dcfce7);border-radius:20px;margin-bottom:24px;overflow:hidden;border:1px solid #bbf7d0}.result-header{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;background:#f0fdf4;border-bottom:1px solid #bbf7d0}.result-title{display:flex;align-items:center;gap:8px;font-weight:600;color:#166534}.result-actions{display:flex;gap:8px}.result-content{padding:20px;font-family:'Fira Code',monospace;font-size:0.9rem;line-height:1.6;color:#065f46;word-break:break-all;background:white;margin:16px;border-radius:16px}.char-info-section{background:var(--gray-50);border-radius:24px;padding:20px;margin-bottom:24px}.section-header{display:flex;align-items:center;gap:10px;margin-bottom:16px;font-weight:600;color:var(--gray-700)}.header-tip{font-size:0.7rem;font-weight:normal;color:var(--gray-400);margin-left:auto}.char-info-input{margin-bottom:20px}.char-input-group{display:flex;gap:12px;align-items:center}.char-input{flex:1;max-width:200px;padding:14px 20px;border:2px solid var(--gray-200);border-radius:60px;font-size:1.2rem;text-align:center;background:white;transition:all 0.3s}.char-input:focus{outline:none;border-color:#8b5cf6;box-shadow:0 0 0 3px rgba(139,92,246,0.1)}.query-btn{background:linear-gradient(135deg, #8b5cf6, #6d28d9);border:none;padding:12px 28px;border-radius:60px;color:white;cursor:pointer;transition:all 0.2s}.query-btn:hover{transform:translateY(-1px);box-shadow:0 4px 12px rgba(139,92,246,0.3)}.char-info{background:white;border-radius:20px;padding:20px;display:flex;gap:24px;flex-wrap:wrap}.char-preview{width:100px;height:100px;background:linear-gradient(135deg, #ede9fe, #f5f3ff);border-radius:20px;display:flex;align-items:center;justify-content:center;font-size:3rem;font-weight:600;color:#6d28d9}.char-details{flex:1;display:flex;flex-direction:column;gap:12px}.detail-row{display:flex;align-items:center;gap:12px;padding:8px 0;border-bottom:1px solid var(--gray-100)}.detail-label{width:110px;font-size:0.8rem;color:var(--gray-500);display:flex;align-items:center;gap:6px}.detail-value{flex:1;font-family:'Fira Code',monospace;font-size:0.85rem;color:var(--gray-800);word-break:break-all}.copy-detail{background:transparent;border:none;color:var(--gray-400);cursor:pointer;transition:color 0.2s;padding:4px 8px}.copy-detail:hover{color:#8b5cf6}.unicode-knowledge{background:linear-gradient(135deg, #ede9fe, #f5f3ff);border-radius:28px;padding:24px}.knowledge-header{display:flex;align-items:center;gap:10px;margin-bottom:20px;font-weight:600;color:#5b21b6}.knowledge-grid{display:grid;grid-template-columns:repeat(4, 1fr);gap:20px}.knowledge-card{background:white;border-radius:20px;padding:20px;text-align:center;transition:all 0.3s}.knowledge-card:hover{transform:translateY(-4px);box-shadow:0 10px 25px rgba(0,0,0,0.08)}.knowledge-card i{font-size:1.8rem;color:#8b5cf6;margin-bottom:12px}.knowledge-card h4{font-size:0.9rem;margin-bottom:8px}.knowledge-card p{font-size:0.7rem;color:var(--gray-500)}@media (max-width:900px){.dual-editor{grid-template-columns:1fr}.vs-icon{display:none}.knowledge-grid{grid-template-columns:repeat(2, 1fr)}.format-buttons{justify-content:center}}@media (max-width:768px){.core-stats{gap:12px}.core-stat{padding:12px 20px}.char-info{flex-direction:column;align-items:center;text-align:center}.detail-row{flex-wrap:wrap}.detail-label{width:100%}.knowledge-grid{grid-template-columns:1fr}.format-btn{min-width:100px;padding:10px 16px}}