.convert-options{background:linear-gradient(135deg, var(--gray-50), #fff);border-radius:20px;padding:20px 24px;margin-bottom:24px;border:1px solid var(--gray-200);display:flex;flex-wrap:wrap;gap:32px}.option-group{flex:1;min-width:180px}.option-title{font-weight:600;font-size:0.85rem;color:var(--gray-700);margin-bottom:12px;display:block}.option-items{display:flex;flex-wrap:wrap;gap:16px;align-items:center}.checkbox-label,.radio-label{display:flex;align-items:center;gap:8px;cursor:pointer;font-size:0.85rem;user-select:none}.checkbox-label input,.radio-label input{display:none}.checkmark{width:18px;height:18px;border:2px solid var(--gray-400);border-radius:4px;display:inline-block;position:relative;transition:all 0.2s}.checkbox-label input:checked+.checkmark{background:var(--primary-color);border-color:var(--primary-color)}.checkbox-label input:checked+.checkmark::after{content:'\f00c';font-family:'Font Awesome 6 Free';font-weight:900;font-size:10px;color:white;position:absolute;top:50%;left:50%;transform:translate(-50%, -50%)}.radio-label .checkmark{border-radius:50%}.radio-label input:checked+.checkmark{background:var(--primary-color);border-color:var(--primary-color)}.radio-label input:checked+.checkmark::after{content:'';width:8px;height:8px;background:white;border-radius:50%;position:absolute;top:50%;left:50%;transform:translate(-50%, -50%)}.editor-container{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:24px}.editor-panel{background:white;border-radius:20px;overflow:hidden;border:1px solid var(--gray-200);box-shadow:0 4px 20px rgba(0,0,0,0.05)}.panel-header{display:flex;justify-content:space-between;align-items:center;padding:14px 20px;background:linear-gradient(135deg, var(--gray-50), #fafafa);border-bottom:1px solid var(--gray-200);flex-wrap:wrap;gap:12px}.panel-title{display:flex;align-items:center;gap:8px;font-weight:600;color:var(--gray-700)}.panel-title i{color:var(--primary-color)}.file-type-badge{background:var(--primary-color);color:white;padding:2px 10px;border-radius:20px;font-size:0.7rem}.panel-actions{display:flex;gap:8px;align-items:center}.action-btn{background:transparent;border:none;padding:6px 12px;border-radius:30px;cursor:pointer;transition:all 0.2s;color:var(--gray-600);display:inline-flex;align-items:center;gap:6px;font-size:0.8rem}.action-btn:hover{background:var(--gray-200);color:var(--primary-color)}.convert-btn{background:var(--primary-color);color:white;padding:8px 20px}.convert-btn:hover{background:var(--primary-dark);color:white}.code-textarea,.output-textarea{width:100%;min-height:400px;padding:20px;font-family:'Fira Code','Monaco',monospace;font-size:13px;line-height:1.6;border:none;resize:vertical;background:#1a1a2e;color:#e0e0e0}.code-textarea:focus{outline:none}.output-wrapper{min-height:400px;max-height:500px;overflow:auto;background:#1a1a2e}.output-textarea{margin:0;white-space:pre-wrap;word-break:break-all}.panel-footer{padding:8px 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)}.preview-section{margin-top:24px;border-top:1px solid var(--gray-200);padding-top:24px}.preview-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.preview-title{display:flex;align-items:center;gap:8px;font-weight:600;color:var(--gray-700)}.preview-container{background:white;border:1px solid var(--gray-200);border-radius:16px;padding:24px;max-height:500px;overflow-y:auto}.markdown-body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Helvetica,Arial,sans-serif;font-size:14px;line-height:1.6}.markdown-body h1{font-size:2em;border-bottom:1px solid #eaecef;padding-bottom:0.3em}.markdown-body h2{font-size:1.5em;border-bottom:1px solid #eaecef;padding-bottom:0.3em}.markdown-body code{background:#f6f8fa;padding:0.2em 0.4em;border-radius:3px;font-family:monospace}.markdown-body pre{background:#f6f8fa;padding:16px;border-radius:6px;overflow-x:auto}.markdown-body blockquote{border-left:4px solid #dfe2e5;padding-left:1em;color:#6a737d}.markdown-body table{border-collapse:collapse;width:100%}.markdown-body th,.markdown-body td{border:1px solid #dfe2e5;padding:6px 13px}.quick-examples{margin-top:20px}.example-buttons{display:flex;flex-wrap:wrap;gap:12px;margin-top:16px}.example-btn{background:var(--gray-100);border:1px solid var(--gray-200);padding:8px 20px;border-radius:40px;cursor:pointer;font-size:0.85rem;transition:all 0.2s}.example-btn:hover{background:var(--primary-color);color:white;border-color:var(--primary-color)}.info-grid{display:grid;grid-template-columns:repeat(4, 1fr);gap:16px;padding:16px}.info-item{display:flex;align-items:center;gap:8px;font-size:0.8rem;color:var(--gray-600)}@media (max-width:900px){.editor-container{grid-template-columns:1fr}.convert-options{flex-direction:column;gap:20px}.info-grid{grid-template-columns:repeat(2, 1fr)}}@media (max-width:480px){.info-grid{grid-template-columns:1fr}.panel-header{flex-direction:column;align-items:flex-start}}