.post-toc{width:100%;box-sizing:border-box;background-color:rgb(0 0 0 / .02);border:1px solid rgb(0 0 0 / .08);border-radius:8px;margin:25px 0;overflow:hidden}.post-toc .toc-title{display:flex;align-items:center;justify-content:space-between;padding:15px 20px;background-color:rgb(0 0 0 / .03);border-bottom:1px solid rgb(0 0 0 / .08);cursor:pointer;font-weight:700;font-size:1.1rem;color:#2c3e50;user-select:none}.post-toc .toc-title::after{content:'▼';font-size:.7rem;color:#7f8c8d;transition:transform 0.2s ease}.post-toc.toc-expanded .toc-title::after{transform:rotate(180deg)}.post-toc ul{list-style:none;margin:0;padding:15px 20px 15px 10px;max-height:280px;overflow-y:auto;box-sizing:border-box}.post-toc ul li{margin-bottom:8px;position:relative;padding-right:15px}.post-toc ul li::before{content:'';position:absolute;right:0;top:50%;transform:translateY(-50%);width:6px;height:6px;background-color:#3498db;border-radius:50%}.post-toc ul li a{color:#34495e;text-decoration:none;font-size:.95rem;display:inline-block;transition:color 0.2s ease}.post-toc ul li a:hover{color:#3498db}.post-toc.toc-collapsed ul{display:none}.post-toc.toc-expanded ul{display:block}.post-toc ul::-webkit-scrollbar{width:5px}.post-toc ul::-webkit-scrollbar-thumb{background-color:rgb(0 0 0 / .15);border-radius:10px}.post-toc ul::-webkit-scrollbar-track{background-color:#fff0}