.bf-answer-panel,.bf-guide-share{--ar-bg:#fff;--ar-ink:#172b44;--ar-muted:#45576d;--ar-border:#cfdeed;--ar-tint:#eff6ff;--ar-link:#1759a6;color:var(--ar-ink);background:var(--ar-bg);border:1px solid var(--ar-border);border-radius:20px;padding:24px;margin:24px 0;scroll-margin-top:110px}
.bf-answer-heading h2{margin:8px 0 10px!important;font-size:clamp(1.35rem,3vw,1.8rem);color:var(--ar-ink)!important;border:0!important;padding:0!important;display:block!important}
.bf-answer-heading p,.bf-guide-share p{color:var(--ar-muted);line-height:1.75;margin:6px 0 16px}
.bf-answer-kicker{color:var(--ar-link);font-size:.85rem;font-weight:800;letter-spacing:.06em}
.bf-material-route-grid,.bf-intent-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.bf-material-route,.bf-intent-grid>a{background:var(--ar-tint);border:1px solid var(--ar-border);border-radius:14px;padding:18px;min-width:0}
.bf-route-title{display:flex;align-items:center;gap:14px}.bf-route-title img{object-fit:contain;flex:none}.bf-route-title h3{margin:0;color:var(--ar-ink);font-size:1.2rem}.bf-route-title small{display:block;margin-top:4px;color:var(--ar-muted);font-size:.78rem;font-weight:500}
.bf-material-route dl{display:grid;grid-template-columns:4em minmax(0,1fr);gap:8px;margin:18px 0 10px}.bf-material-route dt{font-weight:700;color:var(--ar-muted)}.bf-material-route dd{margin:0;color:var(--ar-ink)}
.bf-material-route p{color:var(--ar-muted);font-size:.9rem;line-height:1.7}.bf-answer-link{display:block;font-weight:750;padding:12px 0;color:var(--ar-link)!important;text-decoration:underline;text-underline-offset:3px}.bf-answer-source{display:inline-block;color:var(--ar-muted)!important;font-size:.8rem;padding:10px 0}
.bf-answer-next{display:flex;flex-wrap:wrap;gap:10px 18px;align-items:center;border-top:1px solid var(--ar-border);margin-top:20px;padding-top:18px;line-height:1.7}.bf-answer-next span{flex:1 1 220px;color:var(--ar-muted)}.bf-answer-next a{font-weight:750;color:var(--ar-link)!important;padding:10px 0}
.bf-answer-note{font-size:.82rem;color:var(--ar-muted);line-height:1.7;margin:16px 0 0}
.bf-intent-grid>a{text-decoration:none!important;color:var(--ar-ink)!important;display:flex;flex-direction:column;gap:10px}.bf-intent-grid strong{font-size:1.05rem}.bf-intent-grid span{font-size:.9rem;line-height:1.7;color:var(--ar-muted)}.bf-intent-grid b{font-size:.9rem;color:var(--ar-link);margin-top:auto}
.bf-guide-share{background:var(--ar-tint);padding:20px}.bf-guide-share strong{font-size:1.05rem}.bf-guide-share-actions{display:flex;flex-wrap:wrap;gap:10px}.bf-guide-share-actions a,.bf-guide-share-actions button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 16px;background:var(--ar-bg);border:1px solid var(--ar-border);border-radius:12px;color:var(--ar-link);font:inherit;font-weight:700;text-decoration:none;cursor:pointer;box-sizing:border-box}
.bf-guide-share-actions [hidden],.bf-guide-share-fallback[hidden]{display:none!important}.bf-guide-share-status:empty{display:none}.bf-guide-share .bf-guide-share-status{margin:12px 0 0}.bf-guide-share-fallback{display:block;margin-top:12px;color:var(--ar-ink)}.bf-guide-share-fallback input{display:block;width:100%;max-width:100%;box-sizing:border-box;padding:12px;border:1px solid var(--ar-border);border-radius:8px;background:var(--ar-bg);color:var(--ar-ink)}
.bf-answer-panel a:focus-visible,.bf-guide-share :is(a,button,input):focus-visible{outline:3px solid #c27600;outline-offset:4px}
.bf-tutorial-entry{display:flex;align-items:center;gap:18px;text-decoration:none!important;background:var(--ar-tint);border:1px solid var(--ar-border);padding:16px;border-radius:14px;margin-top:18px;color:var(--ar-ink)!important}.bf-tutorial-entry img{width:90px;height:90px;object-fit:cover;border-radius:10px;flex:none}.bf-tutorial-entry strong,.bf-tutorial-entry span{display:block}.bf-tutorial-entry span{line-height:1.7;font-size:.9rem;color:var(--ar-muted);margin:5px 0}.bf-tutorial-entry b{color:var(--ar-link);font-size:.9rem}
body.dark-mode .bf-answer-panel,body.dark-mode .bf-guide-share{--ar-bg:#142136;--ar-ink:#f1f6ff;--ar-muted:#c0cde0;--ar-border:#405675;--ar-tint:#1d304b;--ar-link:#94c6ff}
body.dark-mode .materials-index-main{--bg-card:#142136;--text-dark:#f1f6ff}
body.dark-mode .materials-index-main .guide-detail-card{background:#142136!important;border-color:#405675;color:#f1f6ff}
body.dark-mode .materials-index-main .guide-subnav{background:#142136;border-color:#405675}
body.dark-mode .materials-index-main .guide-subnav-label{color:#dce8f8}
body.dark-mode .materials-index-main #overview>a:first-child{color:#c0dcff!important}
@media(max-width:600px){.bf-answer-panel,.bf-guide-share{padding:17px;border-radius:16px}.bf-material-route-grid,.bf-intent-grid{grid-template-columns:1fr}.bf-material-route,.bf-intent-grid>a{padding:16px}.bf-guide-share-actions>*{flex:1 1 140px}.bf-tutorial-entry{gap:12px;padding:12px}.bf-tutorial-entry img{width:70px;height:70px}}