.toc-container{width:100%}.toc-container.toc-sticky{position:sticky;top:20px;max-height:calc(100vh - 40px);overflow-y:auto}.toc-header{border-left:4px solid #0057DA;padding-left:16px;margin-bottom:20px}.toc-header h3.toc-title{font-size:16px;font-weight:700;letter-spacing:.5px;margin:0;color:#0057DA}.toc-list{list-style:none;padding:0;margin:0}.toc-link{display:block;font-size:15px;line-height:1.5;color:#333;text-decoration:none;transition:all 0.3s ease;padding:4px 0}.toc-link:hover{color:#0057DA!important;background-color:#d9d9d94d}.toc-link.active{color:#0057DA}.toc-item.level-h3 .toc-link{padding-left:16px;font-size:14px}.toc-item.level-h4 .toc-link{padding-left:16px;font-size:16px;font-weight:500;border-radius:6px}@media (max-width:1024px){.toc-container,.toc-container.toc-sticky{position:relative;right:auto;top:auto;width:100%;max-height:none;background:#fff;border:1px solid #e5e7eb;border-radius:8px;padding:16px}.toc-header{border-left:4px solid #0057DA;padding-left:16px;margin-bottom:0;cursor:pointer;display:flex;justify-content:space-between;align-items:center}.toc-header::after{content:'';width:14px;height:6px;background-image:url(data:image/svg+xml;base64,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);background-repeat:no-repeat;background-position:center;background-size:contain;transition:transform 0.3s ease}.toc-header.collapsed::after{transform:rotate(-90deg)}.toc-list{max-height:0;overflow:hidden;transition:max-height 0.3s ease;margin-top:0}.toc-list.expanded{max-height:1000px;margin-top:16px}.toc-item.level-h4 .toc-link{font-size:14px}}@media (max-width:768px){.toc-header h3.toc-title{font-size:12px}.toc-header{padding-left:10px;border-width:2px}.toc-item.level-h4 .toc-link{padding-left:10px}}