.vcc-kt-hero{background-color:var(--vcc-navy-primary);color:var(--vcc-text-white);background-image:url(/images/knowledge-hero-bg.webp);background-position:100%;background-repeat:no-repeat;background-size:cover;padding:84px 0 88px;position:relative;overflow:hidden}.vcc-kt-hero:before{content:"";z-index:1;pointer-events:none;background:linear-gradient(90deg,#04142af5 0%,#04142ae6 45%,#04142ab3 75%,#04142a73 100%);position:absolute;inset:0}.vcc-kt-hero:after{content:"";pointer-events:none;z-index:2;background-image:linear-gradient(#ffffff08 1px,#0000 1px),linear-gradient(90deg,#ffffff08 1px,#0000 1px);background-size:48px 48px;position:absolute;inset:0;-webkit-mask-image:linear-gradient(#000 30%,#0000);mask-image:linear-gradient(#000 30%,#0000)}.vcc-kt-hero.is-article{padding:56px 0 60px}.vcc-kt-hero-inner{z-index:3;position:relative}.vcc-kt-breadcrumb{color:var(--vcc-text-light);flex-wrap:wrap;gap:8px;margin-bottom:24px;font-size:13px;display:flex}.vcc-kt-breadcrumb a:hover{color:var(--vcc-text-white)}.vcc-kt-hero-title{letter-spacing:-.5px;color:var(--vcc-text-white);max-width:900px;margin:0 0 18px;font-size:44px;font-weight:700;line-height:1.2}.vcc-kt-hero-title.is-article{margin-top:14px;font-size:38px}.vcc-kt-hero-title span{background:linear-gradient(90deg, #fb923c, var(--vcc-orange-forge));color:#0000;-webkit-background-clip:text;background-clip:text}.vcc-kt-hero-lead{color:#cbd5e1;max-width:760px;margin:0;font-size:16px;line-height:1.7}.vcc-kt-hero-topics{grid-template-columns:repeat(4,1fr);gap:14px;margin:36px 0 0;padding:0;list-style:none;display:grid}.vcc-kt-hero-topics li{border-radius:var(--vcc-radius-lg);-webkit-backdrop-filter:blur(8px);background:#04142aa6;border:1px solid #ffffff24;padding:16px 18px}.vcc-kt-hero-topics strong{color:var(--vcc-text-white);margin-bottom:4px;font-size:14px;display:block}.vcc-kt-hero-topics span{color:var(--vcc-text-light);font-size:13px;line-height:1.5}.vcc-kt-meta{color:var(--vcc-text-light);flex-wrap:wrap;gap:8px;margin-top:22px;font-size:13px;font-weight:500;display:flex}.vcc-kt-cat{border-radius:var(--vcc-radius-pill);letter-spacing:.4px;text-transform:uppercase;background:var(--vcc-blue-soft);color:var(--vcc-blue-blueprint);align-items:center;padding:4px 10px;font-size:11.5px;font-weight:700;display:inline-flex}.vcc-kt-cat.is-market{background:var(--vcc-blue-soft);color:var(--vcc-blue-blueprint)}.vcc-kt-cat.is-price{background:var(--vcc-orange-soft);color:var(--vcc-orange-forge)}.vcc-kt-cat.is-supply{color:#059669;background:#ecfdf5}.vcc-kt-cat.is-material{color:#4f46e5;background:#eef2ff}.vcc-kt-cat.is-on-dark{color:#fdba74;background:#ffffff1a}.vcc-kt-filter{flex-wrap:wrap;justify-content:center;gap:8px;margin:0 auto 32px;display:flex}.vcc-kt-filter button{border:1px solid var(--vcc-border-light);border-radius:var(--vcc-radius-pill);background:var(--vcc-surface-white);font:inherit;color:var(--vcc-text-body);cursor:pointer;align-items:center;gap:8px;padding:9px 18px;font-size:13.5px;font-weight:600;transition:all .2s;display:inline-flex}.vcc-kt-filter button span{border-radius:var(--vcc-radius-pill);background:var(--vcc-surface-light);min-width:20px;color:var(--vcc-text-muted);padding:1px 6px;font-size:11px;font-weight:700}.vcc-kt-filter button:hover{border-color:var(--vcc-blue-blueprint);color:var(--vcc-blue-blueprint)}.vcc-kt-filter button.is-active{background:var(--vcc-navy-primary);border-color:var(--vcc-navy-primary);color:var(--vcc-text-white)}.vcc-kt-filter button.is-active span{color:var(--vcc-text-white);background:#ffffff29}.vcc-kt-grid{grid-template-columns:repeat(3,1fr);gap:20px;display:grid}.vcc-kt-card{background:var(--vcc-surface-white);border:1px solid var(--vcc-border-light);border-radius:var(--vcc-radius-lg);box-shadow:var(--vcc-shadow-sm);flex-direction:column;padding:24px;transition:transform .25s,box-shadow .25s,border-color .25s;animation:.45s cubic-bezier(.16,1,.3,1) both vcc-kt-in;display:flex;position:relative}.vcc-kt-grid .vcc-kt-card:nth-child(2){animation-delay:40ms}.vcc-kt-grid .vcc-kt-card:nth-child(3){animation-delay:80ms}.vcc-kt-grid .vcc-kt-card:nth-child(4){animation-delay:.12s}.vcc-kt-grid .vcc-kt-card:nth-child(5){animation-delay:.16s}.vcc-kt-grid .vcc-kt-card:nth-child(6){animation-delay:.2s}@keyframes vcc-kt-in{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}.vcc-kt-card:hover{box-shadow:var(--vcc-shadow-lg);border-color:var(--vcc-blue-blueprint);transform:translateY(-4px)}.vcc-kt-card:before{content:"";background:var(--vcc-orange-forge);border-radius:0 0 2px 2px;width:32px;height:3px;position:absolute;top:0;left:24px}.vcc-kt-card-top{justify-content:space-between;align-items:center;margin-bottom:16px;display:flex}.vcc-kt-card-num{color:var(--vcc-text-light);font-variant-numeric:tabular-nums;font-size:13px;font-weight:700}.vcc-kt-card-title{color:var(--vcc-text-dark);margin:0 0 10px;font-size:17px;font-weight:700;line-height:1.4}.vcc-kt-card:hover .vcc-kt-card-title{color:var(--vcc-blue-blueprint)}.vcc-kt-card-excerpt{color:var(--vcc-text-body);flex:1;margin:0 0 18px;font-size:13.5px;line-height:1.65}.vcc-kt-card-foot{border-top:1px dashed var(--vcc-border-light);color:var(--vcc-text-muted);justify-content:space-between;align-items:center;padding-top:14px;font-size:12.5px;font-weight:500;display:flex}.vcc-kt-card-more{color:var(--vcc-orange-forge);align-items:center;gap:6px;font-weight:700;display:inline-flex}.vcc-kt-card:hover .vcc-kt-card-more svg{transform:translate(3px)}.vcc-kt-card-more svg{transition:transform .2s}.vcc-kt-card.is-featured{background:linear-gradient(120deg, var(--vcc-navy-primary), var(--vcc-navy-card));border-color:#0000;grid-column:1/-1;grid-template-columns:1.1fr 1fr;grid-template-areas:"top points""title points""excerpt points""foot foot";column-gap:40px;padding:32px;display:grid}.vcc-kt-card.is-featured .vcc-kt-card-top{grid-area:top}.vcc-kt-card.is-featured .vcc-kt-card-title{color:var(--vcc-text-white);grid-area:title;font-size:26px}.vcc-kt-card.is-featured .vcc-kt-card-excerpt{color:#cbd5e1;grid-area:excerpt;font-size:14.5px}.vcc-kt-card.is-featured .vcc-kt-card-foot{color:var(--vcc-text-light);border-top-color:#ffffff1f;grid-area:foot}.vcc-kt-card.is-featured .vcc-kt-card-num{color:#fff6}.vcc-kt-card.is-featured .vcc-kt-cat{color:#7dd3fc;background:#ffffff1a}.vcc-kt-card.is-featured:hover .vcc-kt-card-title{color:#fdba74}.vcc-kt-card-points{flex-direction:column;grid-area:points;align-self:center;gap:12px;margin:0 0 18px;padding:0;list-style:none;display:flex}.vcc-kt-card-points li{border-radius:var(--vcc-radius-md);color:#e2e8f0;background:#ffffff0d;border:1px solid #ffffff14;padding:14px 16px 14px 40px;font-size:13.5px;line-height:1.6;position:relative}.vcc-kt-card-points li:before{content:"";background:var(--vcc-orange-forge);border-radius:50%;width:10px;height:10px;position:absolute;top:20px;left:16px;box-shadow:0 0 0 3px #e6510040}.vcc-kt-disclaimer{text-align:center;max-width:820px;color:var(--vcc-text-muted);margin:28px auto 0;font-size:12.5px;line-height:1.6}.vcc-kt-disclaimer.is-left{text-align:left;border-top:1px solid var(--vcc-border-light);max-width:none;margin:32px 0 0;padding-top:18px}.vcc-kt-btn{border-radius:var(--vcc-radius-md);justify-content:center;align-items:center;padding:12px 24px;font-size:14px;font-weight:700;transition:transform .2s,box-shadow .2s,background .2s,color .2s;display:inline-flex}.vcc-kt-btn.is-block{width:100%;display:flex}.vcc-kt-btn-primary{background:var(--vcc-orange-forge);color:var(--vcc-text-white);box-shadow:var(--vcc-shadow-orange)}.vcc-kt-btn-primary:hover{background:var(--vcc-orange-bright);transform:translateY(-2px)}.vcc-kt-btn-ghost{color:var(--vcc-text-white);border:1px solid #ffffff4d}.vcc-kt-btn-ghost:hover{background:#ffffff14}.vcc-kt-btn-outline{border:1px solid var(--vcc-navy-primary);color:var(--vcc-navy-primary)}.vcc-kt-btn-outline:hover{background:var(--vcc-navy-primary);color:var(--vcc-text-white)}.vcc-kt-center{text-align:center;margin-top:32px}.vcc-kt-cta{background:linear-gradient(120deg, var(--vcc-navy-primary), var(--vcc-navy-card));color:var(--vcc-text-white);border-radius:14px;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:24px;padding:32px 36px;display:flex}.vcc-kt-cta-title{color:var(--vcc-text-white);margin:0 0 6px;font-size:22px;font-weight:700}.vcc-kt-cta-text{color:var(--vcc-text-light);max-width:620px;margin:0;font-size:14px}.vcc-kt-cta-actions{flex-wrap:wrap;gap:12px;display:flex}.vcc-kt-article-section{background:var(--vcc-surface-white)}.vcc-kt-layout{grid-template-columns:minmax(0,1fr) 300px;align-items:start;gap:56px;display:grid}.vcc-kt-article{min-width:0;max-width:780px}.vcc-kt-side{align-self:stretch}.vcc-kt-side-sticky{flex-direction:column;gap:18px;display:flex;position:sticky;top:92px}.vcc-kt-takeaways{border-radius:var(--vcc-radius-lg);background:var(--vcc-surface-light);border:1px solid var(--vcc-border-light);border-left:4px solid var(--vcc-orange-forge);margin-bottom:8px;padding:22px 24px}.vcc-kt-takeaways-title{letter-spacing:1px;text-transform:uppercase;color:var(--vcc-orange-forge);margin:0 0 10px;font-size:12px;font-weight:700}.vcc-kt-takeaways ul{margin:0;padding-left:18px}.vcc-kt-takeaways li{color:var(--vcc-text-dark);margin:6px 0;font-size:14.5px;line-height:1.65}.vcc-kt-h2{color:var(--vcc-text-dark);margin:44px 0 14px;scroll-margin-top:96px;font-size:25px;font-weight:700;line-height:1.35}.vcc-kt-h3{color:var(--vcc-text-dark);margin:26px 0 10px;font-size:18px;font-weight:700}.vcc-kt-p{color:var(--vcc-text-body);margin:0 0 16px;font-size:16px;line-height:1.8}.vcc-kt-p strong,.vcc-kt-list strong,.vcc-kt-table strong{color:var(--vcc-text-dark);font-weight:700}.vcc-kt-list{margin:0 0 18px;padding-left:22px}.vcc-kt-list li{color:var(--vcc-text-body);margin:8px 0;padding-left:4px;font-size:16px;line-height:1.75}.vcc-kt-ul li::marker{color:var(--vcc-orange-forge)}.vcc-kt-ol li::marker{color:var(--vcc-orange-forge);font-weight:700}.vcc-kt-table-fig{margin:22px 0 26px}.vcc-kt-table-cap{color:var(--vcc-text-muted);margin-bottom:10px;font-size:13px;font-weight:700}.vcc-kt-table-scroll{border:1px solid var(--vcc-border-light);border-radius:var(--vcc-radius-lg);-webkit-overflow-scrolling:touch;overflow-x:auto}.vcc-kt-table{border-collapse:collapse;width:100%;min-width:520px;font-size:14px}.vcc-kt-table th{text-align:left;background:var(--vcc-navy-primary);color:var(--vcc-text-white);white-space:nowrap;padding:12px 16px;font-size:13px;font-weight:600}.vcc-kt-table td{border-top:1px solid var(--vcc-border-light);color:var(--vcc-text-body);vertical-align:top;padding:11px 16px;line-height:1.55}.vcc-kt-table tbody tr:nth-child(2n) td{background:var(--vcc-surface-light)}.vcc-kt-table td:first-child{color:var(--vcc-text-dark);font-weight:600}.vcc-kt-table-note{color:var(--vcc-text-muted);margin:10px 0 0;font-size:12.5px;font-style:italic;line-height:1.6}.vcc-kt-callout{border-radius:var(--vcc-radius-lg);border:1px solid;gap:14px;margin:22px 0 26px;padding:18px 20px;display:flex}.vcc-kt-callout-icon{flex:none;margin-top:2px}.vcc-kt-callout-title{color:var(--vcc-text-dark);margin:0 0 4px;font-size:14.5px;font-weight:700}.vcc-kt-callout-text{color:var(--vcc-text-body);margin:0;font-size:14.5px;line-height:1.7}.vcc-kt-callout.is-info{background:var(--vcc-blue-soft);color:var(--vcc-blue-blueprint);border-color:#bae6fd}.vcc-kt-callout.is-tip{color:#059669;background:#ecfdf5;border-color:#a7f3d0}.vcc-kt-callout.is-warn{background:var(--vcc-orange-soft);color:var(--vcc-orange-forge);border-color:#fed7aa}.vcc-kt-formula{border-radius:var(--vcc-radius-lg);background:var(--vcc-navy-primary);margin:22px 0 26px;overflow:hidden}.vcc-kt-formula-label{letter-spacing:.8px;text-transform:uppercase;color:#fdba74;border-bottom:1px solid #ffffff14;padding:10px 20px;font-size:12px;font-weight:700;display:block}.vcc-kt-formula pre{color:#e2e8f0;margin:0;padding:18px 20px;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:14px;line-height:1.8;overflow-x:auto}.vcc-kt-faq{margin-top:12px}.vcc-kt-faq-item{border:1px solid var(--vcc-border-light);border-radius:var(--vcc-radius-lg);background:var(--vcc-surface-white);margin-bottom:10px;transition:border-color .2s}.vcc-kt-faq-item[open]{border-color:var(--vcc-blue-blueprint)}.vcc-kt-faq-item summary{cursor:pointer;color:var(--vcc-text-dark);padding:16px 48px 16px 20px;font-size:15px;font-weight:700;list-style:none;position:relative}.vcc-kt-faq-item summary::-webkit-details-marker{display:none}.vcc-kt-faq-item summary:after{content:"+";color:var(--vcc-orange-forge);font-size:20px;font-weight:500;position:absolute;top:50%;right:20px;transform:translateY(-50%)}.vcc-kt-faq-item[open] summary:after{content:"−"}.vcc-kt-faq-item p{color:var(--vcc-text-body);margin:0;padding:0 20px 18px;font-size:14.5px;line-height:1.7}.vcc-kt-pager{grid-template-columns:1fr 1fr;gap:16px;margin-top:32px;display:grid}.vcc-kt-pager-link{border:1px solid var(--vcc-border-light);border-radius:var(--vcc-radius-lg);flex-direction:column;gap:4px;padding:16px 20px;transition:border-color .2s,box-shadow .2s;display:flex}.vcc-kt-pager-link.is-next{text-align:right}.vcc-kt-pager-link span{color:var(--vcc-text-muted);font-size:12.5px;font-weight:600}.vcc-kt-pager-link strong{color:var(--vcc-text-dark);font-size:15px}.vcc-kt-pager-link:hover{border-color:var(--vcc-orange-forge);box-shadow:var(--vcc-shadow-md)}.vcc-kt-pager-link:hover strong{color:var(--vcc-orange-forge)}.vcc-kt-toc{border:1px solid var(--vcc-border-light);border-radius:var(--vcc-radius-lg);background:var(--vcc-surface-light);padding:20px}.vcc-kt-side-title{letter-spacing:1px;text-transform:uppercase;color:var(--vcc-text-muted);margin:0 0 12px;font-size:12px;font-weight:700}.vcc-kt-toc ol{flex-direction:column;gap:2px;margin:0;padding:0;list-style:none;display:flex}.vcc-kt-toc a{border-radius:var(--vcc-radius-sm);color:var(--vcc-text-body);border-left:2px solid #0000;gap:10px;padding:7px 10px;font-size:13.5px;line-height:1.45;transition:background .15s,color .15s,border-color .15s;display:flex}.vcc-kt-toc a:hover{background:var(--vcc-surface-white);color:var(--vcc-blue-blueprint)}.vcc-kt-toc a.is-active{background:var(--vcc-surface-white);color:var(--vcc-orange-forge);border-left-color:var(--vcc-orange-forge);font-weight:600}.vcc-kt-toc-num{color:var(--vcc-text-light);font-variant-numeric:tabular-nums;flex:none;padding-top:1px;font-size:11.5px;font-weight:700}.vcc-kt-side-cta{border-radius:var(--vcc-radius-lg);background:linear-gradient(140deg, var(--vcc-navy-primary), var(--vcc-navy-card));padding:22px 20px}.vcc-kt-side-cta-title{color:var(--vcc-text-white);margin:0 0 6px;font-size:16px;font-weight:700;line-height:1.4}.vcc-kt-side-cta-text{color:var(--vcc-text-light);margin:0 0 16px;font-size:13px;line-height:1.6}.vcc-kt-side-phone{text-align:center;color:#fdba74;margin-top:12px;font-size:13px;font-weight:700;display:block}.vcc-kt-side-phone:hover{color:var(--vcc-text-white)}.vcc-kt-related{grid-template-columns:repeat(3,1fr);gap:20px;display:grid}@media (max-width:1100px){.vcc-kt-layout{grid-template-columns:minmax(0,1fr) 260px;gap:36px}.vcc-kt-hero-topics{grid-template-columns:repeat(2,1fr)}}@media (max-width:900px){.vcc-kt-layout{grid-template-columns:1fr}.vcc-kt-side{order:-1}.vcc-kt-side-sticky{position:static}.vcc-kt-side-cta{display:none}.vcc-kt-grid,.vcc-kt-related{grid-template-columns:repeat(2,1fr)}.vcc-kt-card.is-featured{grid-template-columns:1fr;grid-template-areas:"top""title""excerpt""points""foot"}}@media (max-width:640px){.vcc-kt-hero{background-position:50%;padding:56px 0 60px}.vcc-kt-hero:before{background:linear-gradient(#04142af5 0%,#04142ae6 100%)}.vcc-kt-hero.is-article{padding:40px 0 44px}.vcc-kt-hero-title{font-size:30px}.vcc-kt-hero-title.is-article{font-size:26px}.vcc-kt-hero-topics,.vcc-kt-grid,.vcc-kt-related{grid-template-columns:1fr}.vcc-kt-card.is-featured{padding:24px}.vcc-kt-card.is-featured .vcc-kt-card-title{font-size:21px}.vcc-kt-filter{flex-wrap:nowrap;justify-content:flex-start;padding-bottom:4px;overflow-x:auto}.vcc-kt-filter button{white-space:nowrap}.vcc-kt-h2{margin-top:36px;font-size:21px}.vcc-kt-p,.vcc-kt-list li{font-size:15px}.vcc-kt-pager{grid-template-columns:1fr}.vcc-kt-cta{padding:24px}}@media (prefers-reduced-motion:reduce){.vcc-kt-card{animation:none}}