.oab-manual-v139{max-width:1400px;margin-inline:auto}
.oab-manual-v139 .manual-book-layout{display:grid;grid-template-columns:minmax(210px,270px) minmax(0,1fr);gap:22px;align-items:start}
.oab-manual-v139 .manual-toc{position:sticky;top:16px;max-height:calc(100vh - 32px);overflow:auto;border:1px solid var(--border,#d9e0e8);border-radius:10px;background:var(--surface,#fff);padding:16px;box-shadow:0 4px 16px rgba(16,35,56,.08)}
.oab-manual-v139 .manual-toc strong{display:block;color:#102338;font-size:1rem;margin-bottom:10px}
.oab-manual-v139 .manual-toc nav{display:flex;flex-direction:column;gap:2px}
.oab-manual-v139 .manual-toc a{color:#36536d;text-decoration:none;border-left:3px solid transparent;padding:7px 9px;font-size:.86rem;line-height:1.25}
.oab-manual-v139 .manual-toc a:hover,.oab-manual-v139 .manual-toc a:focus{background:#edf4f8;border-left-color:#1687a7;color:#102338}
.oab-manual-v139 .help-grid{display:block}
.oab-manual-v139 .help-card{scroll-margin-top:18px;margin:0 0 16px;padding:22px 24px;border-radius:8px;background:#fff;border:1px solid #d9e0e8;box-shadow:none}
.oab-manual-v139 .help-card h3{font-family:Georgia,'Times New Roman',serif;font-size:1.25rem;color:#102338;margin:.35rem 0 .55rem}
.oab-manual-v139 .help-card p{max-width:78ch;line-height:1.65;color:#334e62}
.oab-manual-v139 .help-card>div:first-child,.oab-manual-v139 .manual-audience{font-size:.72rem;text-transform:uppercase;letter-spacing:.07em;color:#557086}
.oab-manual-v139 .manual-flow{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:18px;padding:14px;background:#f4f8fa;border-radius:8px}
.oab-manual-v139 .manual-flow span{padding:9px 11px;background:#fff;border:1px solid #bad0dc;border-radius:6px;font-weight:650;color:#16364a}
.oab-manual-v139 .manual-flow b{color:#1687a7}
.oab-manual-v139 .manual-role-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:18px}
.oab-manual-v139 .manual-role-grid span{padding:12px;background:#f4f8fa;border-radius:7px;color:#496579;font-size:.84rem}
.oab-manual-v139 .manual-role-grid b{display:block;color:#16364a;margin-bottom:4px}
.oab-manual-v139 .manual-quick-paths{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:18px}
.oab-manual-v139 .manual-quick-paths section{display:flex;flex-direction:column;gap:7px;padding:16px;background:#f4f8fa;border-radius:8px}
.oab-manual-v139 .manual-quick-paths b{color:#16364a;margin-bottom:3px}
.oab-manual-v139 .manual-quick-paths a{color:#176b87;text-decoration:none}
.oab-manual-v139 .manual-quick-paths a:hover{text-decoration:underline}
@media(max-width:800px){.oab-manual-v139 .manual-book-layout{grid-template-columns:1fr}.oab-manual-v139 .manual-toc{position:relative;top:auto;max-height:260px}.oab-manual-v139 .manual-role-grid,.oab-manual-v139 .manual-quick-paths{grid-template-columns:1fr}.oab-manual-v139 .help-card{padding:18px}}