.pf-art-17874{--primary:#0a58ca;--bg:#f7fafc;--ink:#111;}
.pf-art-17874 *{box-sizing:border-box}
.pf-art-17874{font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--ink);margin:0;line-height:1.6;}
.pf-art-17874 a{color:var(--primary);text-decoration:none}
.pf-art-17874 .container{max-width:1080px;margin:0 auto;padding:0 20px}
.pf-art-17874 .hero{padding:48px 0 24px;background:var(--bg)}
.pf-art-17874 .hero h1{font-size:2.2rem;margin:0 0 12px}
.pf-art-17874 .subtitle{color:#333;margin:0 0 10px}
.pf-art-17874 .meta{font-size:.92rem;color:#666}
.pf-art-17874 .breadcrumbs{font-size:.92rem;border-bottom:1px solid #eee;padding:10px 0;background:#fff}
.pf-art-17874 .breadcrumbs a{color:var(--primary)}
.pf-art-17874 h2{margin-top:36px;font-size:1.65rem}
.pf-art-17874 h3{margin-top:22px;font-size:1.25rem}
.pf-art-17874 .toc{margin:20px 0;background:#fff;border:1px solid #eee;border-radius:10px;padding:16px}
.pf-art-17874 .toc ol{margin:0;padding-left:18px}
.pf-art-17874 .grid{display:grid;gap:18px}
.pf-art-17874 .grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.pf-art-17874 .grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
@media (max-width:900px){.pf-art-17874 .grid--2, .pf-art-17874 .grid--3{grid-template-columns:1fr}}
.pf-art-17874 .note, .pf-art-17874 .tip{border-left:3px solid var(--primary);background:#f0f6ff;padding:12px 14px;border-radius:6px}
.pf-art-17874 .callout{border:1px solid #e6f0ff;background:#f9fbff;border-radius:10px;padding:14px}
.pf-art-17874 .list-check{list-style:none;padding-left:0}
.pf-art-17874 .list-check li{margin:8px 0;padding-left:26px;position:relative}
.pf-art-17874 .list-check li::before{content:"✓";position:absolute;left:0;color:var(--primary)}
.pf-art-17874 .table{width:100%;border-collapse:collapse;margin:16px 0}
.pf-art-17874 .table th, .pf-art-17874 .table td{border:1px solid #eee;padding:10px 12px;text-align:left;vertical-align:top}
.pf-art-17874 .badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:.78rem;background:#eef6ff;border:1px solid #cfe3ff;color:var(--primary)}
.pf-art-17874 .author{display:flex;gap:14px;align-items:center;background:#fff;border:1px solid #eee;border-radius:12px;padding:14px;margin:36px 0 64px}
.pf-art-17874 .author img{width:56px;height:56px;border-radius:50%;object-fit:cover}
.pf-art-17874 .action-bar{position:fixed;inset:auto 0 0 0;background:var(--primary);color:#fff;padding:10px 16px;display:flex;justify-content:center;gap:10px;align-items:center;z-index:50}
.pf-art-17874 .action-bar a{background:#fff;color:var(--primary);padding:10px 12px;border-radius:8px;border:1px solid #fff}
.pf-art-17874 .btn-row{display:flex;gap:12px;flex-wrap:wrap;margin:18px 0}
.pf-art-17874 .btn{display:inline-block;padding:12px 16px;border-radius:10px;border:1px solid var(--primary)}
.pf-art-17874 .btn--primary{background:var(--primary);color:#fff}
.pf-art-17874 .btn--ghost{background:#fff;color:var(--primary)}
.pf-art-17874 .sr-only{position:absolute;left:-9999px}