.custom-toc{position:fixed;top:100px;left:20px;width:280px;max-height:calc(100vh - 140px);overflow-y:auto;background:var(--entry);border:1px solid var(--border);border-radius:8px;padding:20px;box-shadow:0 2px 15px rgba(0,0,0,8%);z-index:100;transition:all .3s ease;display:flex;flex-direction:column;gap:25px}.custom-toc .toc-header{font-weight:700;margin-bottom:10px;padding-bottom:5px;border-bottom:1px solid var(--border);font-size:1.1em}.custom-toc .toc-content{font-size:.9em;line-height:1.4}.custom-toc ul{list-style:none;padding-left:1em;margin:0}.custom-toc li{margin:6px 0;position:relative}.custom-toc a{color:var(--secondary);text-decoration:none;transition:color .2s ease;display:block;padding:2px 0}.custom-toc a:hover,.custom-toc a.active{color:var(--link-hover)}.custom-toc::-webkit-scrollbar{width:6px}.custom-toc::-webkit-scrollbar-track{background:var(--code-bg);border-radius:3px}.custom-toc::-webkit-scrollbar-thumb{background:var(--tertiary);border-radius:3px}.toc-section{margin-bottom:20px;padding-bottom:15px;border-bottom:1px solid var(--border)}.toc-section:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}.toc-categories,.toc-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}.toc-category,.toc-tag{background:var(--code-bg);padding:4px 10px;border-radius:15px;font-size:.85em;color:var(--secondary);transition:all .2s ease;text-decoration:none;border:1px solid var(--border)}.toc-category:hover,.toc-tag:hover{background:var(--link-hover);color:#fff;border-color:var(--link-hover);transform:translateY(-1px)}@media screen and (max-width:1200px){.custom-toc{position:static;width:100%;max-width:100%;margin:20px 0;max-height:none}.post-content{width:100%;margin-left:0}}@keyframes fadeIn{from{opacity:0;transform:translateX(-5px)}to{opacity:1;transform:translateX(0)}}.custom-toc a.active{color:var(--link-hover);font-weight:500;animation:fadeIn .3s ease forwards}.custom-toc li>a.active{border-left:3px solid var(--link-hover);padding-left:8px;margin-left:-11px}