.qba{--qba-bg:var(--warm);--qba-text:var(--dark);--qba-muted:var(--muted);--qba-teal:var(--teal);--qba-pink:var(--pink);--qba-line:var(--line);--qba-dark:var(--dark);--qba-soft:#fffdf9;background:var(--qba-bg);color:var(--qba-text)}.qba-hero{padding:56px 0;background:radial-gradient(ellipse 60% 50% at 100% 0,rgba(70,201,192,.1),transparent 55%),radial-gradient(ellipse 45% 40% at 0 20%,rgba(254,102,195,.08),transparent 50%),var(--warm);border-bottom:1px solid var(--line)}.qba-hero-inner{max-width:780px}.qba-eyebrow{display:inline-flex;align-items:center;gap:10px;margin:0 0 14px;font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--qba-muted)}.qba-eyebrow span{width:28px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--qba-teal),var(--qba-pink))}.qba-hero h1{margin:0;font-size:clamp(2rem,5vw,3.25rem);font-weight:800;letter-spacing:-.045em;line-height:1.08}.qba-hero h1,.qba-hero-sub{font-family:var(--font-manrope),Manrope,sans-serif}.qba-hero-sub{margin:12px 0 0;font-size:1.1rem;font-weight:700;color:var(--qba-muted);letter-spacing:-.02em}.qba-lead{margin:18px 0 0;max-width:58ch;font-size:1.05rem;line-height:1.6;color:var(--qba-text)}.qba-highlight{display:inline-block;margin-top:18px;padding:8px 14px;border-radius:999px;border:1px solid var(--qba-line);background:var(--qba-soft);font-size:13px;font-weight:700;letter-spacing:-.01em;color:var(--qba-text)}.qba-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:12px}.qba-nav{position:-webkit-sticky;position:sticky;top:0;z-index:30;background:rgba(255,255,255,.94);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--qba-line)}.qba-nav-inner{display:flex;flex-wrap:wrap;gap:8px 18px;padding:12px 0;font-size:13px;font-weight:600}.qba-nav a{color:var(--qba-muted)}.qba-nav a:hover{color:var(--qba-text)}.qba-section{padding:40px 0}.qba-section-alt{background:var(--qba-soft)}.qba-section-dark{background:var(--qba-dark);color:#fff}.qba-section-dark .qba-muted-text,.qba-section-dark .qba-section-lead{color:rgba(255,255,255,.72)}.qba-h2{margin:0 0 10px;font-family:var(--font-manrope),Manrope,sans-serif;font-size:clamp(1.45rem,2.8vw,1.95rem);font-weight:800;letter-spacing:-.04em}.qba-h2-spaced{margin-top:28px}.qba-h3{margin:0 0 8px;font-family:var(--font-manrope),Manrope,sans-serif;font-size:1.05rem;font-weight:800;letter-spacing:-.02em}.qba-section-lead{margin:0 0 16px;max-width:62ch;font-size:15px;line-height:1.6;color:var(--qba-muted)}.qba-body{margin:0 0 12px;max-width:68ch;font-size:15px;line-height:1.65}.qba-muted-text{color:var(--qba-muted);font-size:14px;line-height:1.6}.qba-diagram{margin-top:36px;padding:28px 20px;border-radius:20px;border:1px solid var(--qba-line);background:#fff;display:flex;flex-direction:column;align-items:center;gap:10px}.qba-diagram-caption{margin:0 0 8px;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--qba-muted)}.qba-diagram-node{padding:10px 18px;border-radius:12px;border:1px solid var(--qba-line);font-size:14px;font-weight:700;background:#fff}.qba-diagram-node.is-root{border-color:rgba(70,201,192,.45);background:rgba(70,201,192,.08)}.qba-diagram-node.is-mid{min-width:120px;text-align:center}.qba-diagram-row{display:flex;flex-wrap:wrap;justify-content:center;gap:10px}.qba-diagram-line{width:1px;height:16px;background:var(--qba-line)}.qba-diagram-branch{width:min(280px,70%);height:1px;background:var(--qba-line)}.qba-roles{list-style:none;margin:0 0 28px;padding:0;display:flex;flex-wrap:wrap;gap:8px}.qba-roles li{padding:8px 12px;border-radius:999px;border:1px solid var(--qba-line);background:#fff;font-size:13px;font-weight:600}.qba-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:12px;gap:12px}.qba-grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.qba-grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.qba-grid-7{grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}.qba-card{padding:20px;border-radius:20px;border:1px solid var(--qba-line);background:#fff;box-shadow:0 1px 2px rgba(16,24,40,.03);transition:border-color .15s ease,box-shadow .15s ease}.qba-card:hover{border-color:rgba(70,201,192,.4);box-shadow:0 4px 16px rgba(16,24,40,.04)}.qba-card h3{margin:0 0 8px;font-family:var(--font-manrope),Manrope,sans-serif;font-size:16px;font-weight:800;letter-spacing:-.02em}.qba-card .qba-card-body,.qba-card p{margin:0;font-size:14px;line-height:1.6;color:var(--qba-muted)}.qba-duty{display:flex;flex-direction:column;gap:6px;padding:18px;border-radius:20px;border:1px solid var(--qba-line);background:#fff}.qba-duty b{font-size:12px;letter-spacing:.08em;color:var(--qba-teal)}.qba-duty strong{font-family:var(--font-manrope),Manrope,sans-serif;font-size:15px}.qba-duty span{font-size:13px;line-height:1.55;color:var(--qba-muted)}.qba-no-list{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:10px;gap:10px}.qba-no-list li{padding:14px 16px;border-radius:14px;border:1px solid var(--qba-line);background:#fff;font-size:14px;font-weight:600}.qba-no-list li:before{content:"× ";color:var(--qba-pink);font-weight:800}.qba-flow{list-style:none;margin:0 0 20px;padding:0;display:flex;flex-wrap:wrap;gap:8px;align-items:center}.qba-flow li{padding:10px 14px;border-radius:999px;border:1px solid var(--qba-line);background:#fff;font-size:13px;font-weight:700}.qba-flow li:not(:last-child):after{content:""}.qba-panel{padding:22px;border-radius:20px;border:1px solid var(--qba-line);background:#fff}.qba-panel-dark{background:rgba(255,255,255,.04);border-color:rgba(255,255,255,.1);color:#fff}