:root {
  --kb-brand: #d71920;
  --kb-brand-dark: #a90f15;
  --kb-ink: #172033;
  --kb-muted: #667085;
  --kb-border: #e4e7ec;
  --kb-soft: #f7f8fa;
  --kb-white: #fff;
  --kb-shadow: 0 10px 32px rgba(16, 24, 40, .08);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--kb-ink); background: #fff; font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif; line-height: 1.6; }
a { color: #b31219; text-decoration: none; }
a:hover { color: var(--kb-brand); }
.kb-container { width: min(1180px, calc(100% - 36px)); margin: 0 auto; }
.kb-topbar { background: #151a24; color: #fff; }
.kb-topbar-inner { min-height: 68px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.kb-brand { color: #fff; display: inline-flex; align-items: center; gap: 12px; font-weight: 800; font-size: 1.08rem; }
.kb-brand:hover { color: #fff; }
.kb-brand-mark { width: 34px; height: 34px; border-radius: 10px; background: var(--kb-brand); display: grid; place-items: center; font-size: 1rem; box-shadow: inset 0 0 0 1px rgba(255,255,255,.16); }
.kb-brand-logo { max-height: 38px; max-width: 210px; object-fit: contain; }
.kb-topnav { display: flex; align-items: center; gap: 18px; font-size: .92rem; }
.kb-topnav a { color: #e7eaf0; }
.kb-topnav a:hover { color: #fff; }
.kb-topnav .kb-btn { color: #fff; }
.kb-btn { display: inline-flex; align-items: center; justify-content: center; gap: 7px; padding: 10px 16px; border-radius: 8px; border: 1px solid transparent; font-weight: 700; cursor: pointer; font: inherit; }
.kb-btn-primary { background: var(--kb-brand); color: #fff; }
.kb-btn-primary:hover { background: var(--kb-brand-dark); color: #fff; }
.kb-btn-light { background: #fff; color: var(--kb-ink); border-color: var(--kb-border); }
.kb-btn-light:hover { background: var(--kb-soft); color: var(--kb-ink); }
.kb-btn-sm { padding: 7px 11px; font-size: .86rem; }
.kb-hero { color: #fff; background: linear-gradient(135deg, #1d2433 0%, #293247 60%, #4a1e25 100%); padding: 70px 0 76px; position: relative; overflow: hidden; }
.kb-hero::after { content: ""; position: absolute; width: 420px; height: 420px; border-radius: 50%; right: -120px; top: -210px; background: rgba(215,25,32,.18); }
.kb-hero h1 { margin: 0 0 10px; font-size: clamp(2rem, 5vw, 3.45rem); line-height: 1.12; letter-spacing: -.035em; }
.kb-hero p { max-width: 720px; margin: 0 auto 28px; color: #d7dce6; font-size: 1.08rem; }
.kb-hero-content { position: relative; z-index: 1; text-align: center; }
.kb-search { width: min(760px, 100%); margin: 0 auto; display: flex; background: #fff; border-radius: 12px; padding: 7px; box-shadow: 0 14px 42px rgba(0,0,0,.25); }
.kb-search input { flex: 1; min-width: 0; border: 0; outline: 0; padding: 13px 15px; font-size: 1rem; border-radius: 9px; }
.kb-search button { border: 0; border-radius: 9px; padding: 0 22px; background: var(--kb-brand); color: #fff; font-weight: 800; cursor: pointer; }
.kb-main { padding: 42px 0 72px; }
.kb-section-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; margin-bottom: 20px; }
.kb-section-head h2 { margin: 0; font-size: 1.45rem; }
.kb-section-head p { margin: 5px 0 0; color: var(--kb-muted); }
.kb-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.kb-grid-two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.kb-card { background: #fff; border: 1px solid var(--kb-border); border-radius: 13px; padding: 22px; box-shadow: 0 2px 4px rgba(16,24,40,.03); transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease; }
.kb-card:hover { transform: translateY(-2px); box-shadow: var(--kb-shadow); border-color: #d0d5dd; }
.kb-card-icon { width: 42px; height: 42px; border-radius: 11px; background: #fff0f1; color: var(--kb-brand); display: grid; place-items: center; font-size: 1.25rem; margin-bottom: 14px; }
.kb-card h3 { margin: 0 0 6px; font-size: 1.08rem; }
.kb-card p { margin: 0; color: var(--kb-muted); font-size: .93rem; }
.kb-card-meta { margin-top: 14px; font-size: .82rem; color: #8a94a6; }
.kb-split { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 28px; align-items: start; }
.kb-article-list { border: 1px solid var(--kb-border); border-radius: 12px; background: #fff; overflow: hidden; }
.kb-list-item { display: block; padding: 18px 20px; border-bottom: 1px solid var(--kb-border); }
.kb-list-item:last-child { border-bottom: 0; }
.kb-list-item:hover { background: #fbfbfc; }
.kb-list-item h3 { margin: 0 0 5px; color: var(--kb-ink); font-size: 1rem; }
.kb-list-item p { margin: 0; color: var(--kb-muted); font-size: .9rem; }
.kb-list-meta { margin-top: 8px; color: #8a94a6; font-size: .78rem; }
.kb-breadcrumbs { display: flex; flex-wrap: wrap; gap: 7px; align-items: center; padding: 19px 0; font-size: .86rem; color: var(--kb-muted); }
.kb-breadcrumbs span { color: #a3aab7; }
.kb-page { background: var(--kb-soft); min-height: calc(100vh - 68px); }
.kb-content-grid { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 28px; align-items: start; padding-bottom: 60px; }
.kb-sidebar { position: sticky; top: 20px; background: #fff; border: 1px solid var(--kb-border); border-radius: 12px; padding: 13px; max-height: calc(100vh - 40px); overflow: auto; }
.kb-sidebar-title { font-size: .74rem; text-transform: uppercase; letter-spacing: .08em; color: #98a2b3; font-weight: 800; padding: 7px 10px 10px; }
.kb-side-link { display: block; padding: 9px 10px; border-radius: 7px; color: #3b4558; font-size: .9rem; }
.kb-side-link:hover, .kb-side-link.active { background: #fff0f1; color: #a50d14; }
.kb-side-child { padding-left: 13px; }
.kb-article { background: #fff; border: 1px solid var(--kb-border); border-radius: 13px; padding: clamp(24px, 5vw, 48px); min-width: 0; }
.kb-article-header h1 { font-size: clamp(1.85rem, 4vw, 2.7rem); line-height: 1.15; letter-spacing: -.025em; margin: 0 0 14px; }
.kb-article-lead { color: var(--kb-muted); font-size: 1.03rem; margin: 0 0 16px; }
.kb-article-meta { display: flex; flex-wrap: wrap; gap: 12px 18px; padding-bottom: 24px; margin-bottom: 26px; border-bottom: 1px solid var(--kb-border); color: #7b8495; font-size: .82rem; }
.kb-badge { display: inline-flex; align-items: center; padding: 3px 8px; border-radius: 999px; font-size: .72rem; font-weight: 800; }
.kb-badge-private { background: #fff4e5; color: #8b4a00; }
.kb-badge-login { background: #edf4ff; color: #245eaa; }
.kb-badge-draft { background: #f2f4f7; color: #475467; }
.kb-article-body { font-size: 1rem; color: #2d3748; overflow-wrap: anywhere; }
.kb-article-body h2, .kb-article-body h3, .kb-article-body h4 { color: var(--kb-ink); scroll-margin-top: 24px; line-height: 1.25; }
.kb-article-body h2 { margin: 34px 0 12px; font-size: 1.55rem; }
.kb-article-body h3 { margin: 28px 0 10px; font-size: 1.22rem; }
.kb-article-body img { max-width: 100%; height: auto; border-radius: 9px; border: 1px solid var(--kb-border); }
.kb-article-body iframe { width: 100%; min-height: 430px; border: 1px solid var(--kb-border); border-radius: 10px; background: #fff; }
.kb-article-body table { width: 100%; border-collapse: collapse; table-layout: auto; margin: 18px 0; }
.kb-article-body th, .kb-article-body td { border: 1px solid #d9dde5; padding: 9px 11px; min-width: 70px; vertical-align: top; text-align: left; overflow-wrap: break-word; word-break: normal; hyphens: none; }
.kb-article-body th { background: #f6f7f9; font-weight: 700; }
.kb-article-body blockquote { margin: 20px 0; padding: 13px 18px; border-left: 4px solid var(--kb-brand); background: #fff6f6; color: #4b5565; }
.kb-article-body pre { position: relative; overflow: auto; padding: 18px; border-radius: 10px; background: #151a24; color: #eef1f6; font-size: .88rem; line-height: 1.55; }
.kb-copy-code { position: absolute; right: 8px; top: 8px; border: 1px solid rgba(255,255,255,.22); background: rgba(255,255,255,.08); color: #fff; border-radius: 6px; padding: 5px 8px; font-size: .72rem; cursor: pointer; }
.ql-align-center { text-align: center; }.ql-align-right { text-align: right; }.ql-align-justify { text-align: justify; }
.ql-size-small { font-size: .78em; }.ql-size-large { font-size: 1.45em; }.ql-size-huge { font-size: 2.2em; }
.kb-toc { background: #f8f9fb; border: 1px solid var(--kb-border); border-radius: 10px; padding: 15px 17px; margin: 0 0 26px; }
.kb-toc strong { display: block; margin-bottom: 7px; }
.kb-toc a { display: block; padding: 3px 0; font-size: .88rem; }
.kb-toc a.level-3 { padding-left: 16px; }
.kb-tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 28px; }
.kb-tag { background: #f2f4f7; color: #4d5768; padding: 4px 9px; border-radius: 999px; font-size: .76rem; }
.kb-feedback { margin-top: 34px; padding: 22px; background: #f8f9fb; border: 1px solid var(--kb-border); border-radius: 11px; text-align: center; }
.kb-feedback h3 { margin: 0 0 12px; font-size: 1rem; }
.kb-feedback-actions { display: flex; justify-content: center; gap: 10px; }
.kb-related { margin-top: 26px; }
.kb-related h2 { font-size: 1.1rem; }
.kb-alert { border-radius: 10px; padding: 14px 16px; margin-bottom: 18px; border: 1px solid; }
.kb-alert-info { background: #eef5ff; border-color: #c7dcfa; color: #234b7d; }
.kb-alert-warning { background: #fff7e8; border-color: #f7d99e; color: #70430a; }
.kb-empty { border: 1px dashed #cfd5df; border-radius: 12px; padding: 38px 22px; text-align: center; color: var(--kb-muted); background: #fff; }
.kb-footer { border-top: 1px solid var(--kb-border); background: #fff; padding: 28px 0; color: var(--kb-muted); font-size: .84rem; }
.kb-footer-inner { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.kb-login-panel { max-width: 620px; margin: 80px auto; text-align: center; background: #fff; border: 1px solid var(--kb-border); border-radius: 14px; padding: 42px; box-shadow: var(--kb-shadow); }
.kb-admin-bar { background: #fff4e5; border-bottom: 1px solid #f0d39a; color: #6b4208; font-size: .82rem; }
.kb-admin-bar-inner { min-height: 38px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
@media (max-width: 900px) {
  .kb-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .kb-split, .kb-content-grid { grid-template-columns: 1fr; }
  .kb-sidebar { position: static; max-height: none; }
  .kb-topnav a:not(.kb-btn) { display: none; }
}
@media (max-width: 620px) {
  .kb-container { width: min(100% - 24px, 1180px); }
  .kb-grid, .kb-grid-two { grid-template-columns: 1fr; }
  .kb-hero { padding: 48px 0 54px; }
  .kb-search { display: block; padding: 6px; }
  .kb-search input { width: 100%; }
  .kb-search button { width: 100%; padding: 11px; }
  .kb-article { padding: 24px 19px; }
  .kb-topbar-inner { min-height: 60px; }
}

/* Rich article content added by the Stage 1.1 editor */
.kb-article-body::after { content: ""; display: table; clear: both; }
.kb-article-body .kb-table-wrap { width: 100%; max-width: 100%; overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 18px 0; border: 1px solid var(--kb-border); border-radius: 9px; }
.kb-article-body .kb-table-wrap table { width: 100%; margin: 0; min-width: 520px; border: 0; }
.kb-article-body .kb-table-wrap th:first-child,
.kb-article-body .kb-table-wrap td:first-child { border-left: 0; }
.kb-article-body .kb-table-wrap th:last-child,
.kb-article-body .kb-table-wrap td:last-child { border-right: 0; }
.kb-article-body .kb-table-wrap tr:first-child th,
.kb-article-body .kb-table-wrap tr:first-child td { border-top: 0; }
.kb-article-body .kb-table-wrap tr:last-child td { border-bottom: 0; }
.kb-article-body table caption { caption-side: top; text-align: left; font-weight: 800; color: var(--kb-ink); padding: 0 0 9px; }
.kb-article-body img.kb-img-25 { width: 25%; }
.kb-article-body img.kb-img-50 { width: 50%; }
.kb-article-body img.kb-img-75 { width: 75%; }
.kb-article-body img.kb-img-100 { width: 100%; }
.kb-article-body img.kb-align-left { float: left; margin: 6px 20px 14px 0; }
.kb-article-body img.kb-align-center { display: block; margin: 16px auto; }
.kb-article-body img.kb-align-right { float: right; margin: 6px 0 14px 20px; }
.kb-article-body .kb-document-embed { min-height: 520px; }
@media (max-width: 620px) {
  .kb-article-body img.kb-img-25,
  .kb-article-body img.kb-img-50,
  .kb-article-body img.kb-img-75 { width: 100%; }
  .kb-article-body img.kb-align-left,
  .kb-article-body img.kb-align-right { float: none; display: block; margin: 14px auto; }
  .kb-article-body .kb-document-embed { min-height: 360px; }
}