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:root{--kb-bg:#f5f7fa;--kb-card:#fff;--kb-text:#101828;--kb-text-soft:#344054;--kb-muted:#667085;--kb-border:#e4e7ec;--kb-border-light:#edf0f4;--kb-primary:#0a6ed1;--kb-primary-dark:#0659ab;--kb-primary-light:#eef5fd;--kb-primary-border:#c5daf5;--kb-hover:#f6f9fd;--kb-shadow-xs:0 2px 6px rgba(16,24,40,0.03);--kb-shadow:0 8px 30px rgba(16,24,40,0.045);--kb-shadow-lg:0 16px 48px rgba(16,24,40,0.07);--kb-radius-sm:8px;--kb-radius:16px;--kb-radius-lg:22px;--kb-container:1400px}.knowledge-page,
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.knowledge-article-page .kb-article{position:relative;overflow:visible;padding:52px 64px 70px;background:#fff;border:1px solid rgba(15,23,42,.05);border-radius:26px;box-shadow:0 1px 1px rgba(15,23,42,.02),0 12px 30px rgba(15,23,42,.03),0 32px 80px rgba(15,23,42,.05),0 80px 140px rgba(15,23,42,.04)}
.knowledge-article-page .kb-article::before{content:"";position:absolute;top:0;left:72px;right:72px;height:3px;border-radius:0 0 8px 8px;background:linear-gradient(90deg,var(--kb-primary),rgba(10,110,209,.35),transparent)}.knowledge-article-page .article-header{position:relative;margin:0 0 20px}
.knowledge-article-page .article-type{display:inline-flex;align-items:center;height:30px;margin:0 0 20px;padding:0 16px;border:1px solid rgba(10,110,209,0.12);border-radius:999px;background:linear-gradient(135deg,var(--kb-primary-light) 0%,rgba(10,110,209,0.06) 100%);color:var(--kb-primary);font-size:10.5px;line-height:1;font-weight:700;letter-spacing:0.07em;text-transform:uppercase;box-shadow:0 1px 2px rgba(10,110,209,0.06)}
.knowledge-article-page .article-header h1{max-width:960px;margin:0;color:#09111d;font-size:52px;line-height:1.04;font-weight:800;letter-spacing:-.055em;text-wrap:balance}.knowledge-article-page .article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:12px 20px;margin-top:20px;padding-top:0;border-top:none;color:var(--kb-muted);font-size:13.5px;line-height:1.4}
.knowledge-article-page .article-meta span{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:999px;background:#f8fafc;border:1px solid rgba(15,23,42,.05);color:#64748b;font-size:12px;font-weight:600}
.knowledge-article-page .article-meta img{display:block;width:16px;height:16px;flex-shrink:0;opacity:.7}
.knowledge-article-page .article-meta span::before{content:none!important;display:none!important}.knowledge-article-page .article-cover{margin:40px 0;overflow:hidden;border-radius:22px;border:none;background:#eef2f7;box-shadow:0 20px 45px rgba(15,23,42,.08),0 40px 90px rgba(15,23,42,.06);transition:.45s}
.knowledge-article-page .article-cover:hover{transform:translateY(-5px)}
.knowledge-article-page .article-cover img{display:block;width:100%;height:auto;transition:transform .7s cubic-bezier(.22,1,.36,1)}
.knowledge-article-page .article-cover:hover img{transform:scale(1.03)}.knowledge-article-page .article-intro{display:flex;align-items:flex-start;gap:16px;padding:16px 24px;background:linear-gradient(135deg,rgba(10,110,209,.055),rgba(10,110,209,.015));border:1px solid rgba(10,110,209,.10);border-left:4px solid var(--kb-primary);border-radius:14px;color:#334155;font-size:18px;line-height:1.65;margin:40px 0}
.knowledge-article-page .article-intro .intro-icon{flex-shrink:0!important;width:24px!important;height:24px!important;margin-top:4px!important;display:block!important;filter:invert(27%) sepia(94%) saturate(1934%) hue-rotate(197deg) brightness(97%) contrast(101%)!important}
.knowledge-article-page .article-intro .intro-content{flex:1;min-width:0}
.knowledge-article-page .article-intro .intro-label{display:block;margin-bottom:6px;color:var(--kb-primary);font-size:11px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.knowledge-article-page .article-content{max-width:none;font-size:17px;line-height:1.75;color:#334155}
.knowledge-article-page .article-content::after{content:"";display:block;clear:both}
.knowledge-article-page .article-content p{margin:0 0 8px}
.knowledge-article-page .article-content>p:first-of-type{margin-top:0}.knowledge-article-page .article-content strong{color:#0f172a;font-weight:650}
.knowledge-article-page .article-content em{color:#475569;font-style:italic}
.knowledge-article-page .article-content a{color:var(--kb-primary);text-decoration:none;border-bottom:1.5px solid rgba(10,110,209,0.22);transition:color .2s ease,border-color .2s ease,background .2s ease;padding:0 1px}
.knowledge-article-page .article-content a:hover{color:var(--kb-primary-dark);border-color:var(--kb-primary);background:rgba(10,110,209,0.04)}.knowledge-article-page .article-content h2::before,
.knowledge-article-page .article-content h2::after,
.knowledge-article-page .article-content h3::before,
.knowledge-article-page .article-content h3::after{content:none!important;display:none!important}
.knowledge-article-page .article-content h2{display:flex;align-items:center;gap:24px;margin:32px 0 22px;color:#09111d;font-size:28px;line-height:1.15;font-weight:800;letter-spacing:-0.04em}
.knowledge-article-page .article-content h2:first-child{margin-top:0}
.knowledge-article-page .article-content h3{display:flex;align-items:center;gap:18px;margin:32px 0 14px;color:#111827;font-size:20px;line-height:1.35;font-weight:700;letter-spacing:-0.02em}
.knowledge-article-page .article-content h2 + h3{margin-top:24px}.knowledge-article-page .article-content .heading-number{flex:0 0 56px;width:56px;height:56px;display:flex;align-items:center;justify-content:center;border-radius:18px;background:linear-gradient(145deg,#fff 0%,#eef5ff 100%);border:1px solid rgba(10,110,209,0.12);color:var(--kb-primary);font-size:20px;line-height:1;font-weight:800;font-variant-numeric:tabular-nums;box-shadow:0 8px 24px rgba(10,110,209,0.08),inset 0 1px 0 rgba(255,255,255,0.9);user-select:none;transition:transform .25s ease,box-shadow .3s ease,background .25s ease}
.knowledge-article-page .article-content h3 .heading-number{flex:0 0 38px;width:38px;height:38px;border-radius:12px;background:linear-gradient(145deg,#f8fafc 0%,#eef6ff 100%);border:1px solid rgba(10,110,209,0.08);box-shadow:0 4px 12px rgba(10,110,209,0.04);font-size:14px;font-weight:700}
.knowledge-article-page .article-content h2:hover .heading-number{transform:translateY(-2px) scale(1.02);box-shadow:0 12px 32px rgba(10,110,209,0.15),inset 0 1px 0 rgba(255,255,255,0.9);background:linear-gradient(145deg,#fff 0%,#e6f0ff 100%)}
.knowledge-article-page .article-content h3:hover .heading-number{background:linear-gradient(145deg,#eef6ff 0%,#dce8fa 100%);box-shadow:0 6px 16px rgba(10,110,209,0.08);transform:translateY(-1px)}.knowledge-article-page .article-toc{float:right;width:320px;margin:0 0 24px 36px;padding:18px 18px 16px;background:#fff;border:1px solid rgba(15,23,42,.06);border-radius:18px;box-shadow:0 8px 30px rgba(15,23,42,.05);position:relative;z-index:2}
.knowledge-article-page .article-toc::before{content:"";position:absolute;top:0;left:18px;right:18px;height:2px;border-radius:20px;background:linear-gradient(90deg,var(--kb-primary),rgba(10,110,209,.18),transparent)}
.knowledge-article-page .article-toc-title{margin:0 0 14px;padding-bottom:10px;border-bottom:1px solid #edf2f7;font-size:16px;font-weight:800;color:#0f172a}
.knowledge-article-page .article-content .article-toc ul,
.knowledge-article-page .article-content .article-toc ol,
.knowledge-article-page .article-content .article-toc li{margin:0 !important;padding:0 !important;list-style:none !important}
.knowledge-article-page .article-content .article-toc li::before,
.knowledge-article-page .article-content .article-toc li::after,
.knowledge-article-page .article-content .article-toc li::marker{content:none !important;display:none !important}
.knowledge-article-page .article-toc .toc-h2{margin-top:8px;padding-top:8px;border-top:1px solid #e9eef5}
.knowledge-article-page .article-toc .toc-h2:first-child{margin-top:0;padding-top:0;border-top:none}
.knowledge-article-page .article-toc .toc-h3{margin-top:2px}
.knowledge-article-page .article-toc a{display:block;padding:4px 10px;border-radius:8px;text-decoration:none;font-size:12.5px;line-height:1.45;color:#475569;transition:background .18s,color .18s,padding .18s}
.knowledge-article-page .article-toc a:hover{background:#f8fbff;color:var(--kb-primary)}
.knowledge-article-page .article-toc .toc-text{display:block}
.knowledge-article-page .article-toc .toc-number{color:#94a3b8;font-size:11px;font-weight:700}
.knowledge-article-page .article-toc .toc-h2>a{padding-left:8px;font-weight:700;color:#334155}
.knowledge-article-page .article-toc .toc-h3>a{display:block;padding:4px 10px 4px 24px;border:none !important;box-shadow:none !important;border-radius:8px;font-size:11.5px;font-weight:500;color:#64748b;transition:background .18s,color .18s}
.knowledge-article-page .article-toc .toc-h3>a:hover{background:#f5f9ff;color:var(--kb-primary)}
.knowledge-article-page .article-toc li.active>a{background:#f2f8ff;color:var(--kb-primary);font-weight:700;box-shadow:inset 3px 0 0 var(--kb-primary)}
.knowledge-article-page .article-toc .toc-h2.active>a{padding-left:12px}
.knowledge-article-page .article-toc .toc-h3.active>a{padding-left:28px}
.knowledge-article-page .article-toc li.active .toc-number{color:var(--kb-primary)}.knowledge-article-page .article-content .article-note,
.knowledge-article-page .article-content .article-warning,
.knowledge-article-page .article-content .article-conclusion{position:relative;margin:32px 0;padding:12px 24px 12px 56px;border-radius:16px;background:#f8fafc;border-left:4px solid var(--kb-primary);color:#1e293b;font-size:15px;line-height:1.7}
.knowledge-article-page .article-content .article-note::before,
.knowledge-article-page .article-content .article-warning::before,
.knowledge-article-page .article-content .article-conclusion::before{position:absolute;left:18px;top:14px;font-size:20px;line-height:1}
.knowledge-article-page .article-content .article-note::before{content:"";background-image:url('/assets/svg/info1.svg');background-size:contain;background-repeat:no-repeat;background-position:center;width:24px;height:24px;top:12px;left:16px;font-size:0;line-height:0;filter:invert(27%) sepia(94%) saturate(1934%) hue-rotate(197deg) brightness(97%) contrast(101%)}
.knowledge-article-page .article-content .article-warning{border-left-color:#d97706;background:#fffbeb}
.knowledge-article-page .article-content .article-warning::before{content:"⚠";color:#d97706}
.knowledge-article-page .article-content .article-conclusion{border-left-color:#059669;background:#ecfdf5}
.knowledge-article-page .article-content .article-conclusion::before{content:"✓";color:#059669}
.knowledge-article-page .article-content .article-note h4,
.knowledge-article-page .article-content .article-warning h4,
.knowledge-article-page .article-content .article-conclusion h4{margin:0 0 4px;font-size:15px;font-weight:700}.knowledge-article-page .article-content ul:not(.article-toc ul),
.knowledge-article-page .article-content ol:not(.article-toc ol){margin:20px 0 24px;padding-left:28px}
.knowledge-article-page .article-content ul:not(.article-toc ul){list-style:none}
.knowledge-article-page .article-content ul:not(.article-toc ul) li{position:relative;margin:8px 0;padding-left:28px;line-height:1.65;list-style:none}
.knowledge-article-page .article-content ul:not(.article-toc ul) li::before{content:"";position:absolute;left:0;top:0.65em;width:8px;height:8px;border-radius:50%;background:#1f6feb}
.knowledge-article-page .article-content ol:not(.article-toc ol){counter-reset:article-counter;list-style:none}
.knowledge-article-page .article-content ol:not(.article-toc ol) li{counter-increment:article-counter;position:relative;padding-left:38px;margin:8px 0;line-height:1.65;list-style:none}
.knowledge-article-page .article-content ol:not(.article-toc ol) li::before{content:counter(article-counter);position:absolute;left:0;top:0;width:26px;height:26px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:#eef4ff;color:#1f6feb;font-size:14px;font-weight:600}.knowledge-article-page .article-content blockquote{position:relative;margin:40px 0;padding:24px 32px;border:none;border-radius:18px;background:#f8fafc;color:#0f172a;font-size:18px;line-height:1.55;font-weight:500}
.knowledge-article-page .article-content blockquote::before{content:"“";position:absolute;left:16px;top:-8px;color:#dbeafe;font-size:72px;font-weight:800;line-height:1}.knowledge-article-page .table-wrapper{width:100%;margin:32px 0;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--kb-border);border-radius:14px;background:var(--kb-card);box-shadow:0 2px 8px rgba(16,24,40,0.03)}
.knowledge-article-page .article-content table{width:100%;min-width:560px;border-collapse:collapse;border-spacing:0;color:var(--kb-text-soft);font-size:14px;line-height:1.6}
.knowledge-article-page .article-content table th{padding:12px 18px;border-bottom:2px solid var(--kb-border);background:linear-gradient(180deg,#f8fafc 0%,#f1f5f9 100%);color:var(--kb-text);font-size:11.5px;line-height:1.4;font-weight:700;text-align:left;vertical-align:middle;text-transform:uppercase;letter-spacing:0.05em}
.knowledge-article-page .article-content table td{padding:12px 18px;border-bottom:1px solid var(--kb-border-light);vertical-align:top}
.knowledge-article-page .article-content table tr:last-child td{border-bottom:0}
.knowledge-article-page .article-content table tr:hover td{background:#f8fafc}
.knowledge-article-page .article-content table td:first-child{font-weight:600;color:#1e293b}.knowledge-article-page .article-content img{display:block;max-width:100%;height:auto;border-radius:14px}
.knowledge-article-page .article-content figure{margin:32px 0}
.knowledge-article-page .article-content figure img{margin-right:auto;margin-left:auto}
.knowledge-article-page .image-caption{margin-top:10px;color:var(--kb-muted);font-size:13px;line-height:1.5;font-style:italic;text-align:center}.knowledge-article-page .article-content hr{height:1px;margin:40px 0;padding:0;border:0;background:linear-gradient(90deg,transparent 0%,var(--kb-border) 20%,var(--kb-border) 80%,transparent 100%)}.knowledge-article-page .article-gallery,
.knowledge-article-page .article-products,
.knowledge-article-page .related-articles{margin-top:48px;padding-top:32px;border-top:1px solid var(--kb-border-light)}
.knowledge-article-page .article-products h2,
.knowledge-article-page .related-articles h2{margin:0 0 24px;color:var(--kb-text);font-size:25px;line-height:1.3;font-weight:800;letter-spacing:-0.025em}
.knowledge-article-page .article-gallery-grid,
.knowledge-article-page .article-products-grid,
.knowledge-article-page .related-articles-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.knowledge-article-page .article-gallery-grid img{display:block;width:100%;height:210px;object-fit:cover;border-radius:14px;transition:transform .35s cubic-bezier(.22,1,.36,1),box-shadow .35s ease}
.knowledge-article-page .article-gallery-grid img:hover{transform:translateY(-4px);box-shadow:0 12px 28px rgba(16,24,40,0.12)}@media (max-width:1200px){.knowledge-article-page .kb-article{padding:44px 48px 60px}.knowledge-article-page .kb-article::before{left:48px;right:48px}.knowledge-article-page .article-header h1{font-size:38px}.knowledge-article-page .article-toc{width:280px;margin-left:32px}}
@media (max-width:980px){.knowledge-article-page .kb-article{padding:36px 36px 52px}.knowledge-article-page .kb-article::before{left:36px;right:36px}.knowledge-article-page .article-header h1{font-size:34px}}
@media (max-width:760px){.knowledge-article-page .kb-article{padding:28px 24px 44px;border-radius:16px}.knowledge-article-page .kb-article::before{left:24px;right:24px}.knowledge-article-page .article-header h1{font-size:28px}.knowledge-article-page .article-toc{float:none;width:100%;margin:0 0 28px}.knowledge-article-page .article-content h2{font-size:25px}.knowledge-article-page .article-content h3{font-size:19px}.knowledge-article-page .article-gallery-grid,.knowledge-article-page .article-products-grid,.knowledge-article-page .related-articles-grid{grid-template-columns:1fr}}
@media (max-width:480px){.knowledge-article-page .kb-article{padding:20px 16px 36px}.knowledge-article-page .kb-article::before{left:16px;right:16px}.knowledge-article-page .article-header h1{font-size:24px}.knowledge-article-page .article-content h2{font-size:22px}.knowledge-article-page .article-content h3{font-size:18px}}.ferro-process{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:6px 12px;background:#f8f9fa;padding:20px 24px;border-radius:8px;margin:20px 0 28px 0;border:1px solid #e9ecef}.process-item{background:#fff;border:2px solid #6c757d;border-radius:8px;padding:8px 16px;min-width:80px;text-align:center;font-size:14px;font-weight:500;line-height:1.4;color:#212529}.process-item.danger{border-color:#dc3545;background:#fff5f5;color:#dc3545}.process-arrow{font-size:20px;color:#adb5bd;font-weight:300;padding:0 2px}.callout{padding:16px 20px;margin:20px 0;border-radius:4px;font-size:15px;line-height:1.6}.callout.info{background:#eaf4fb;border-left:4px solid #0d6efd}.callout.info strong{color:#0d6efd}.callout.warning{background:#fff8e6;border-left:4px solid #ffc107}.callout.warning strong{color:#856404}.comparison-table{width:100%;border-collapse:collapse;margin:16px 0 20px 0}.comparison-table th,
.comparison-table td{border:1px solid #dee2e6;padding:10px 14px;text-align:left}.comparison-table th{background:#f1f3f5;font-weight:600}.comparison-table td:first-child{font-weight:500;background:#fafafa}@media (max-width:768px){.ferro-process{flex-direction:column;gap:4px;padding:16px}.process-arrow{transform:rotate(90deg);padding:2px 0}.callout{font-size:14px;padding:12px 16px}}.comparison-table{width:100%;border-collapse:collapse;margin:16px 0 20px 0}.comparison-table th,
.comparison-table td{border:1px solid #dee2e6;padding:10px 14px;text-align:left}.comparison-table th{background:#f1f3f5;font-weight:600}.comparison-table td:first-child{font-weight:500;background:#fafafa}.comparison-table td:nth-child(3){text-align:center}.callout{padding:16px 20px;margin:20px 0;border-radius:4px;font-size:15px;line-height:1.6}.callout.info{background:#eaf4fb;border-left:4px solid #0d6efd}.callout.info strong{color:#0d6efd}.callout.info ul{margin:8px 0 0 0;padding-left:20px}