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h4{color:var(--blue);font-size:1rem;margin-bottom:.75rem}.client-toc{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;padding:1.5rem;margin-bottom:2rem}.client-toc summary{font-weight:700;font-size:1rem;color:var(--text);cursor:pointer;list-style:none;display:flex;align-items:center;gap:.5rem}.client-toc summary::-webkit-details-marker{display:none}.client-toc summary:before{content:"";display:inline-block;width:6px;height:6px;border-right:2px solid var(--text-secondary);border-bottom:2px solid var(--text-secondary);transform:rotate(-45deg);transition:transform .2s}.client-toc[open] summary:before{transform:rotate(45deg)}.client-toc ol{margin:1rem 0 0;padding-left:1.5rem}.client-toc li{margin-bottom:.4rem;font-size:.9rem}.client-toc a{color:var(--text-secondary);text-decoration:none}.client-toc a:hover{color:var(--blue)}.related-articles{max-width:820px;margin:0 auto;padding:0 2rem 3rem}.related-articles h3{font-size:1.3rem;font-weight:700;margin-bottom:1.5rem;color:var(--text)}.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}.related-card{background:var(--bg-card);border:1px solid var(--border);border-radius:12px;overflow:hidden;text-decoration:none;color:var(--text);transition:border-color .2s,transform .2s;display:flex;flex-direction:column}.related-card:hover{border-color:var(--blue);transform:translateY(-2px)}.related-card .related-img{width:100%;height:140px;object-fit:cover;display:block}.related-card .related-body{padding:1rem 1.25rem 1.25rem}.related-card .related-tag{display:inline-block;padding:.15rem .5rem;background:#4a90d91a;border-radius:50px;font-size:.65rem;color:var(--blue);font-weight:600;margin-bottom:.5rem}.related-card h4{font-size:.9rem;font-weight:600;line-height:1.4;margin-bottom:.4rem}.related-card .related-meta{font-size:.75rem;color:var(--text-muted)}.article-newsletter{max-width:820px;margin:0 auto;padding:0 2rem 3rem}.article-newsletter-card{background:var(--bg-card);border:1px solid var(--border);border-radius:16px;padding:2.5rem;text-align:center}.article-newsletter-card h3{font-size:1.4rem;font-weight:800;color:var(--text);margin:0 0 .5rem}.article-newsletter-card .nl-text{color:var(--text-secondary);font-size:.95rem;margin:0 0 1.5rem}.article-newsletter-card .newsletter-input-wrap{max-width:420px;margin:0 auto;display:flex;gap:0;border-radius:10px;overflow:hidden;border:1px solid var(--border);background:var(--bg);transition:border-color .2s}.article-newsletter-card .newsletter-input-wrap:focus-within{border-color:var(--blue)}.article-newsletter-card .newsletter-input-wrap input{flex:1;padding:.75rem 1rem;background:transparent;border:none;color:var(--text);font-size:.9rem;outline:none}.article-newsletter-card .newsletter-input-wrap button{padding:.75rem 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2.5rem}.back{display:inline-block;margin-top:2rem;color:var(--text-secondary);text-decoration:none;font-size:.9rem}.back:hover{color:var(--text)}.share-bar{display:flex;justify-content:center;gap:.5rem;margin-top:1.25rem}.share-btn{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:10px;border:1px solid var(--border);background:var(--bg-card);color:var(--text-muted);cursor:pointer;transition:all .2s;text-decoration:none}.share-btn:hover{border-color:var(--blue);transform:translateY(-2px)}.share-btn.share-x:hover{color:var(--text)}.share-btn.share-fb:hover{color:#1877f2}.share-btn.share-li:hover{color:#0a66c2}.share-btn.share-copy:hover{color:var(--blue)}.share-btn.share-copy.copied{color:#22c55e;border-color:#22c55e}.share-btn svg{width:18px;height:18px}@media(prefers-color-scheme:dark){.share-btn.share-x:hover{color:#fff}}.article-faq{margin-top:2.5rem}.article-faq h2{font-size:1.5rem;font-weight:800;margin-bottom:1rem;color:var(--text);text-transform:uppercase;letter-spacing:.02em}.faq-list{display:flex;flex-direction:column;gap:0}.faq-item{border-bottom:1px solid var(--border)}.faq-question{display:flex;justify-content:space-between;align-items:center;width:100%;padding:1.25rem 0;background:none;border:none;cursor:pointer;font-size:1rem;font-weight:500;color:var(--text-secondary);text-align:left;gap:1rem;font-family:inherit;transition:color .2s}.faq-question:hover{color:var(--text)}.faq-icon{position:relative;width:24px;height:24px;flex-shrink:0}.faq-icon:before,.faq-icon:after{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:var(--text-secondary);border-radius:1px;transition:transform .3s,opacity .3s}.faq-icon:before{width:16px;height:2px}.faq-icon:after{width:2px;height:16px}.faq-item.open .faq-question{font-weight:600;color:var(--text)}.faq-item.open .faq-icon:after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}.faq-answer{max-height:0;overflow:hidden;transition:max-height .3s ease}.faq-answer-inner{padding:0 0 1.5rem;font-size:.95rem;color:var(--text-secondary);line-height:1.8}.article-forum{max-width:820px;margin:0 auto;padding:0 2rem 2rem}.article-forum-card{display:flex;align-items:center;gap:1rem;padding:1.25rem 1.5rem;background:var(--bg-card);border:1px solid var(--border);border-radius:14px;text-decoration:none;color:inherit;transition:border-color .2s,transform .2s}.article-forum-card:hover{border-color:var(--blue);transform:translateY(-2px)}.article-forum-icon{width:40px;height:40px;border-radius:10px;background:#4a90d914;display:flex;align-items:center;justify-content:center;flex-shrink:0}.article-forum-icon svg{width:20px;height:20px;color:var(--blue)}.article-forum-text{flex:1}.article-forum-text strong{display:block;font-size:.95rem;font-weight:700;color:var(--text);margin-bottom:.15rem}.article-forum-text span{font-size:.82rem;color:var(--text-secondary)}.article-forum-arrow{color:var(--text-muted)}.article-forum-arrow svg{width:20px;height:20px}@media(max-width:768px){.article-header{padding:4.5rem 1.5rem 1.5rem}.article-header h1{font-size:1.8rem}.related-grid{grid-template-columns:1fr}.article-content .table-wrapper{margin-left:-1.5rem;margin-right:-1.5rem;width:calc(100% + 3rem);border-radius:0}.article-content table{min-width:600px}.article-content th,.article-content td{padding:.6rem .5rem;font-size:.75rem}}