/* Topic landing pages (/lecn, /cnc, /automation). Builds on blog.css. */
.tp-hero{background:radial-gradient(120% 90% at 85% 10%,#2c1c4c 0%,var(--ink) 60%);color:#fff;padding:46px 0 56px}
.tp-hero-in{display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(24px,4vw,56px);align-items:center}
.crumbs{font-size:.85rem;color:rgba(255,255,255,.55);margin-bottom:18px}
.crumbs a{color:rgba(255,255,255,.75);text-decoration:none}
.tp-hero h1{font-size:clamp(1.9rem,4vw,2.9rem);margin:12px 0 14px}
.tp-hero p{color:rgba(255,255,255,.74);margin:0;max-width:36em}
.tp-ctas{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}
.tp-hero-img{width:100%;height:auto;border-radius:20px;background:#fff;box-shadow:0 30px 60px -30px rgba(0,0,0,.7)}
.tp{max-width:960px;padding:44px 0 80px}
.tp h2{font-size:clamp(1.4rem,2.6vw,1.8rem);margin:1.8em 0 .7em}
.tp>h2:first-child{margin-top:0}
.tp-cards{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:0 0 1.4em}
.tp-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px 20px}
.tp-card h3{font-size:1.05rem;margin:0 0 6px;color:var(--brand)}
.tp-card p{margin:0;font-size:.95rem;color:var(--muted)}
.tp-fig{margin:1.6em 0}
.tp-fig img{width:100%;height:auto;border-radius:18px;margin:0;background:#fff;border:1px solid var(--line)}
.tp-fig figcaption{font-size:.85rem;color:var(--muted);margin-top:8px;text-align:center}
.faq{display:grid;gap:10px;margin-bottom:36px}
.faq details{background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px 18px}
.faq summary{cursor:pointer;font:600 1rem var(--f-display);list-style-position:outside}
.faq details[open] summary{color:var(--brand);margin-bottom:6px}
.faq p{margin:0;color:#3d3450}
.tp-cta .tp-cta-t{display:block;flex:1 1 320px}
.tp .tp-cta h2{margin:0;font-size:1.3rem}
.tp .tp-cta p{color:rgba(255,255,255,.7);margin:6px 0 0;font-size:.95rem}
.tp-more{display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:30px;font:600 .95rem var(--f-display)}
.tp-more span{color:var(--muted)}
.tp-more a{color:var(--brand);text-decoration:none}
.bfoot-links{display:flex;flex-wrap:wrap;gap:6px 16px}
@media (max-width:860px){.tp-hero-in{grid-template-columns:1fr}.tp-cards{grid-template-columns:1fr}}
.tp .btn{color:var(--ink);text-decoration:none}.tp .btn.ghost{color:#fff}