.containerdtblog,.toc-wrapper{padding:20px;border-radius:8px}#table-of-contents a,.hashtag{text-decoration:none;transition:.3s}.bannerdtblog{width:100%;height:400px;overflow:hidden;position:relative}.bannerdtblog img{width:100%;height:100%;object-fit:cover}.containerdtblog{max-width:1200px;margin:-50px auto 0;display:grid;grid-template-columns:250px 1fr;gap:40px;background:#fff;position:relative;box-shadow:0 2px 10px rgba(0,0,0,.1)}.article-content table tr:nth-child(2n),.toc-wrapper{background:#f9f9f9}.toc-wrapper{position:sticky;top:20px;align-self:start;border:1px solid #e0e0e0}.toc-header{display:flex;justify-content:space-between;align-items:center;cursor:pointer;user-select:none;padding-bottom:10px;border-bottom:2px solid #3498db;margin-bottom:15px}.toc-title{font-size:18px;font-weight:700;color:#2c3e50}.toc-divider{display:none}#table-of-contents{list-style:none;max-height:500px;overflow-y:auto}#table-of-contents>li{margin-bottom:5px}#table-of-contents .toc-h2{font-weight:600;margin-top:10px}#table-of-contents .toc-h2>.toc-item{display:flex;justify-content:space-between;align-items:center;cursor:pointer;padding:8px 10px;border-radius:4px;transition:background .3s}#table-of-contents .toc-h2>.toc-item:hover{background:#e8f4f8}#table-of-contents .toc-arrow{font-size:12px;transition:transform .3s;color:#3498db}#table-of-contents .toc-arrow.collapsed{transform:rotate(-90deg)}#table-of-contents .toc-h3-list{list-style:none;padding-left:20px;max-height:500px;overflow:hidden;transition:max-height .3s}#table-of-contents .toc-h3-list.collapsed{max-height:0}#table-of-contents .toc-h3-list li{margin:5px 0}#table-of-contents .toc-h3-list a{font-size:14px;padding-left:10px}#table-of-contents::-webkit-scrollbar{width:6px}#table-of-contents::-webkit-scrollbar-track{background:#f1f1f1;border-radius:3px}#table-of-contents::-webkit-scrollbar-thumb{background:#3498db;border-radius:3px}#table-of-contents::-webkit-scrollbar-thumb:hover{background:#2980b9}#table-of-contents li{margin-bottom:8px}#table-of-contents a{color:#555;display:block;padding:5px 10px;border-radius:4px}#table-of-contents a:hover{color:#3498db;background:#e8f4f8;padding-left:15px}.content-wrapper{padding:20px}.article-header{margin-bottom:30px;padding-bottom:20px;border-bottom:2px solid #eee}.article-title{font-size:36px;font-weight:700;color:#2c3e50;margin-bottom:15px;line-height:1.3}.article-meta{display:flex;gap:20px;color:#7f8c8d;font-size:14px;margin-bottom:15px}.meta-item{display:flex;align-items:center;gap:5px}.meta-item::before{color:#3498db;font-weight:700}.meta-item:first-child::before{content:""}.short-description{font-size:18px;color:#555;font-style:italic;line-height:1.6;padding:15px;background:#f8f9fa;border-left:4px solid #3498db;border-radius:4px}.article-content{font-size:16px;line-height:1.8;color:#444}.article-content h2,.article-content h3,.article-content h4{color:#2c3e50;margin-top:30px;margin-bottom:15px;font-weight:600}.article-content blockquote,.article-content em{font-style:italic;color:#555}.article-content h2{font-size:28px;margin-top:40px}.article-content h3{font-size:24px}.article-content h4{font-size:20px}.article-content ol,.article-content ul{margin:15px 0;padding-left:30px}.article-content ol li,.article-content ul li{margin-bottom:10px;line-height:1.8}.article-content table{width:100%;border-collapse:collapse;margin:20px 0;background:#fff;box-shadow:0 2px 4px rgba(0,0,0,.1)}.article-content table td,.article-content table th{border:1px solid #ddd;padding:12px 15px;text-align:left}.article-content table th{background:#3498db;color:#fff;font-weight:600}.article-content table tr:hover{background:#f0f0f0}.article-content blockquote{margin:20px 0;padding:15px 20px;background:#f8f9fa;border-left:4px solid #3498db}.article-content p{margin-bottom:20px;text-align:justify}.article-content img{width:100%;max-width:100%;height:auto;border-radius:8px;margin:20px 0;box-shadow:0 4px 6px rgba(0,0,0,.1);object-fit:contain}.hashtags{margin-top:40px;padding-top:20px;border-top:2px solid #eee}.hashtags-title{font-size:16px;font-weight:700;color:#7f8c8d;margin-bottom:10px}.hashtag-list{display:flex;flex-wrap:wrap;gap:10px}.hashtag{background:#3498db;color:#fff;padding:6px 15px;border-radius:20px;font-size:14px}.hashtag:hover{background:#2980b9;transform:translateY(-2px);box-shadow:0 4px 8px rgba(52,152,219,.3)}@media (max-width:768px){.bannerdtblog{height:250px}.containerdtblog{grid-template-columns:1fr;margin-top:-30px;padding:15px;gap:20px}.toc-wrapper{position:static;margin-bottom:20px}.content-wrapper{padding:10px}.article-title{font-size:28px}.article-meta{flex-direction:column;gap:5px}.short-description{font-size:16px}.article-content{font-size:15px}.article-content h2{font-size:22px;margin-top:30px}.article-content h3{font-size:18px;margin-top:25px}.article-content table{font-size:14px}.article-content table td,.article-content table th{padding:8px 10px}.hashtag-list{gap:8px}.hashtag{font-size:13px;padding:5px 12px}}@media (max-width:480px){.bannerdtblog{height:200px}.article-title{font-size:24px}.short-description{font-size:15px;padding:12px}.article-content{font-size:14px}.article-content h2{font-size:20px}.article-content h3{font-size:17px}.article-content table{font-size:13px}.article-content table td,.article-content table th{padding:6px 8px}}