:root{--primary-color:#4a6fa5;--secondary-color:#6c757d;--success-color:#28a745;--danger-color:#dc3545;--warning-color:#ffc107;--info-color:#17a2b8;--light-color:#f8f9fa;--dark-color:#343a40;--border-color:#dee2e6;--error-bg:#fff3f3}*{box-sizing:border-box;margin:0;padding:0}body{font-family:'Segoe UI',Tahoma,Geneva,Verdana,sans-serif;line-height:1.6;background-color:#f5f7fa;color:#333;padding:20px}.container{max-width:1200px;margin:0 auto;background-color:#fff;border-radius:8px;box-shadow:0 2px 10px rgba(0,0,0,.1);padding:25px}.tool-nav{display:flex;justify-content:space-between;align-items:center;padding:15px 0;margin-bottom:30px;border-bottom:1px solid var(--border-color)}.nav-logo{font-weight:700;font-size:1.2rem;color:var(--primary-color);text-decoration:none}.nav-links{display:flex;gap:15px}.nav-links a{text-decoration:none;color:var(--dark-color);padding:8px 12px;border-radius:4px;transition:background .2s}.nav-links a:hover{background:var(--light-color)}.dropdown{position:relative;display:inline-block}.dropdown-content{display:none;position:absolute;background-color:#fff;min-width:200px;box-shadow:0 8px 16px rgba(0,0,0,.1);z-index:1;border-radius:4px}.dropdown-content a{display:block;padding:10px 15px}.dropdown:hover .dropdown-content{display:block}.hero{text-align:center;margin-bottom:40px;padding:20px 0}.hero h1{color:var(--primary-color);margin-bottom:10px}.hero p{color:var(--secondary-color);font-size:1.1rem}.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:20px;margin-bottom:40px}.tool-card{background:#fff;border:1px solid var(--border-color);border-radius:8px;padding:20px;text-align:center;text-decoration:none;color:var(--dark-color);transition:transform .2s,box-shadow .2s}.tool-card:hover{transform:translateY(-5px);box-shadow:0 5px 15px rgba(0,0,0,.1)}.tool-card i{font-size:2.5rem;color:var(--primary-color);margin-bottom:15px}.tool-card h3{margin-bottom:10px;color:var(--primary-color)}.editor-container,.error-container,.result-container{margin-bottom:20px;border:1px solid var(--border-color);border-radius:4px;overflow:hidden}.editor-header,.error-header,.result-header{display:flex;justify-content:space-between;align-items:center;padding:10px 15px;background-color:var(--light-color);border-bottom:1px solid var(--border-color);font-weight:500}.editor-wrapper,.result-wrapper{position:relative;margin:0;padding:0}.line-numbers,.output-line-numbers{position:absolute;left:0;top:0;width:40px;height:100%;padding:15px 5px 15px 15px;background-color:#f0f0f0;border-right:1px solid #ddd;font-family:Consolas,Monaco,monospace;font-size:14px;line-height:1.5;color:#888;text-align:right;overflow:hidden;user-select:none}textarea{width:100%;min-height:200px;padding:15px 15px 15px 60px;border:none;resize:vertical;font-family:Consolas,Monaco,monospace;font-size:14px;line-height:1.5;background-color:#fff}textarea:focus{outline:0}pre{width:100%;min-height:200px;padding:15px 15px 15px 60px;margin:0;overflow:auto;background-color:#fff;font-family:Consolas,Monaco,monospace;font-size:14px;line-height:1.5;white-space:pre-wrap}.converter-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-bottom:20px}.converter-options{background:#f8f9fa;padding:15px;border-radius:8px;margin-top:20px}.options-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:15px;margin-top:10px}.btn{padding:10px 15px;border:none;border-radius:4px;cursor:pointer;font-weight:500;display:flex;align-items:center;gap:5px;transition:all .2s}.btn.small{padding:5px 10px;font-size:.8rem}.btn i{font-size:14px}.btn.primary{background-color:var(--primary-color);color:#fff}.btn.primary:hover{background-color:#3a5a8a}.btn.secondary{background-color:var(--secondary-color);color:#fff}.btn.secondary:hover{background-color:#5a6268}.btn.danger{background-color:var(--danger-color);color:#fff}.btn.danger:hover{background-color:#c82333}.btn.success{background-color:var(--success-color);color:#fff}.btn.success:hover{background-color:#218838}footer{margin-top:30px;text-align:center;padding-top:15px;border-top:1px solid var(--border-color);color:var(--secondary-color);font-size:.9rem}@media (max-width:768px){.tool-nav{flex-direction:column;gap:15px}.nav-links{flex-wrap:wrap;justify-content:center}.converter-grid{grid-template-columns:1fr}.tool-grid{grid-template-columns:1fr 1fr}}@media (max-width:480px){.tool-grid{grid-template-columns:1fr}}.toolbar{display:flex;gap:10px;margin-bottom:20px;align-items:center;flex-wrap:wrap;background:#f8f9fa;padding:12px 15px;border-radius:8px;border:1px solid #e1e4e8}.toolbar .btn{display:inline-flex;align-items:center;justify-content:center;min-width:100px;height:38px;padding:0 15px;font-size:14px;gap:8px}.toolbar .btn i{font-size:14px;width:16px;text-align:center}.toolbar .status-indicator{margin-left:auto;padding:6px 12px;background:#fff;border-radius:4px;border:1px solid #e1e4e8;font-size:13px;color:#6c757d;display:flex;align-items:center}.toolbar select{height:38px;padding:0 12px;border-radius:4px;border:1px solid #e1e4e8;background:#fff;font-size:14px;min-width:150px}.btn.primary{background-color:var(--primary-color);color:#fff;border:1px solid #3a5a8a}.btn.secondary{background-color:#f8f9fa;color:var(--dark-color);border:1px solid #dee2e6}.btn.danger{background-color:var(--danger-color);color:#fff;border:1px solid #c82333}.btn.success{background-color:var(--success-color);color:#fff;border:1px solid #218838}.btn.primary:hover{background-color:#3a5a8a;transform:translateY(-1px)}.btn.secondary:hover{background-color:#e9ecef}.btn.danger:hover{background-color:#c82333}.btn.success:hover{background-color:#218838}.editor-container,.result-container{border-radius:6px;border:1px solid #e1e4e8;box-shadow:0 1px 3px rgba(0,0,0,.05)}.editor-header,.result-header{background-color:#f8f9fa;padding:12px 15px;border-bottom:1px solid #e1e4e8;font-weight:600;color:#495057}@media (max-width:768px){.toolbar{gap:8px;padding:10px}.toolbar .btn{min-width:0;flex:1 1 120px;padding:0 10px}.toolbar select{min-width:120px}.toolbar .status-indicator{margin-left:0;width:100%;justify-content:center}}@media (max-width:480px){.toolbar .btn{flex:1 1 100%}.toolbar select{width:100%}}pre,textarea{padding:15px;line-height:1.5;font-size:14px;background-color:#fff;border:none}.line-numbers,.output-line-numbers{background-color:#f8f9fa;color:#adb5bd;padding:15px 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thead{background:linear-gradient(135deg,#4a6fa5 0,#3a5a8a 100%);color:#fff}.error-table th{padding:12px 15px;text-align:left;font-weight:500}.error-table td{padding:12px 15px;border-bottom:1px solid #f0f2f5;background:#fff}.error-table tr:nth-child(2n) td{background-color:#f9fafb}.error-table tr:hover td{background-color:#f0f7ff}.error-table code{background:#f5f7fa;padding:2px 5px;border-radius:3px;font-family:Consolas,Monaco,monospace;font-size:.9em;color:#d6336c}.pro-tips{background:linear-gradient(to right,#f8f9fa 0,#f0f7ff 100%);border-left:4px solid #4a6fa5;padding:20px;border-radius:0 8px 8px 0;margin-top:30px;position:relative}.pro-tips:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:url('data:image/svg+xml;utf8,<svg width="100" height="100" viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg"><path fill="%234a6fa5" fill-opacity="0.03" 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li:before{color:#28a745}.xmlconverter-panel .documentation-section h3{color:#dc3545}.xmlconverter-panel .rules-list li:before{color:#dc3545}.schemagen-panel .documentation-section h3{color:#6f42c1}.schemagen-panel .rules-list li:before{color:#6f42c1}.page-description{background:#f8fafc;padding:5rem 2rem;margin:4rem 0;border-radius:12px;box-shadow:0 5px 15px rgba(0,0,0,.03)}.description-container{max-width:1200px;margin:0 auto}.description-header{text-align:center;margin-bottom:4rem}.description-header h2{font-size:2.4rem;color:#1e293b;margin-bottom:1.2rem;font-weight:700}.description-header .divider{width:100px;height:4px;background:#0ea5e9;margin:0 auto 1.8rem;border-radius:2px;background:linear-gradient(90deg,#0ea5e9,#22d3ee)}.description-header .subtitle{font-size:1.25rem;color:#64748b;max-width:700px;margin:0 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rgba(0,0,0,.15)}.cta-button.secondary{background:0 0;color:#fff;border:2px solid #fff}.cta-button.secondary:hover{background:rgba(255,255,255,.1);transform:translateY(-2px)}@media (max-width:768px){.description-header h2{font-size:2rem}.benefits-section{flex-direction:column}.cta-buttons{flex-direction:column;gap:1rem}.cta-button{width:100%;text-align:center}}.editor-wrapper{position:relative;overflow:hidden;height:auto}.line-numbers{position:absolute;left:0;top:0;height:100%;width:40px;padding:15px 5px 15px 15px;background-color:#f0f0f0;border-right:1px solid #ddd;font-family:Consolas,Monaco,monospace;font-size:14px;line-height:1.5;color:#888;text-align:right;user-select:none;overflow:hidden}#jsonInput{width:100%;min-height:200px;padding:15px 15px 15px 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2px}}.navbar{background-color:#fff;border-bottom:1px solid #e5e7eb;padding:12px 20px;font-family:"Segoe UI",sans-serif}.navbar-container{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap}.navbar-logo{font-weight:700;font-size:1.5rem;color:#2c3e50;text-decoration:none}.navbar-menu{list-style:none;display:flex;flex-wrap:wrap;gap:12px;margin:0;padding:0}.navbar-menu li a{text-decoration:none;color:#374151;padding:6px 12px;border-radius:6px;transition:background-color .2s,color .2s}.navbar-menu li a.active,.navbar-menu li a:hover{background-color:#f3f4f6;color:#111827}