.arh-single{background:#f4f8ff;color:#111c33}.arh-wrap{width:min(1180px,calc(100% - 40px));margin:auto}
.arh-post-hero{padding:78px 0;background:linear-gradient(120deg,#0d1933,#1648c7 58%,#7134e8);color:#fff;text-align:center}
.arh-hero-inner{max-width:1050px}.arh-kicker{font-weight:800;letter-spacing:2px;font-size:14px;margin-bottom:22px}
.arh-post-hero h1{font-size:clamp(38px,5vw,68px);line-height:1.08;margin:0 auto 22px;color:#fff}
.arh-excerpt{font-size:21px;line-height:1.65;max-width:900px;margin:0 auto 25px}.arh-meta{display:flex;justify-content:center;gap:24px;flex-wrap:wrap;font-weight:600}
.arh-featured{margin-top:48px}.arh-featured img{width:100%;max-height:610px;object-fit:cover;border-radius:24px;box-shadow:0 16px 50px rgba(15,35,80,.14)}
.arh-content-grid{display:grid;grid-template-columns:minmax(0,780px) 300px;gap:54px;padding:55px 0 75px;align-items:start}
.arh-content{background:#fff;padding:48px;border-radius:20px;box-shadow:0 10px 35px rgba(15,35,80,.06);font-size:19px;line-height:1.85}
.arh-content h2{font-size:34px;line-height:1.25;margin:52px 0 18px}.arh-content h3{font-size:26px;margin:38px 0 14px}.arh-content img{border-radius:14px}
.arh-disclosure{background:#eef5ff;border-left:5px solid #1670d2;padding:18px 20px;border-radius:10px;margin-bottom:26px;font-size:15px;line-height:1.6}
.arh-toc{border:1px solid #dbe6f6;background:#f8fbff;padding:25px 28px;border-radius:14px;margin:0 0 35px}.arh-toc-title{font-size:22px;font-weight:800;margin-bottom:12px}.arh-toc ol{margin:0;padding-left:22px}.arh-toc li{margin:8px 0}.arh-toc a{color:#096dcc;text-decoration:none;font-weight:600}
.arh-side{position:sticky;top:110px}.arh-side-card{background:#101b31;color:#fff;border-radius:18px;padding:30px}.arh-side-card strong{font-size:24px}.arh-side-card p{line-height:1.65;color:#dce7fb}.arh-side-card a{display:inline-block;background:#0873d1;color:#fff;padding:13px 18px;border-radius:9px;text-decoration:none;font-weight:700}
.arh-related{background:#fff;padding:70px 0}.arh-related h2{text-align:center;font-size:42px}.arh-related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px;margin-top:35px}.arh-related-card{color:#111c33;text-decoration:none;border:1px solid #e1e8f2;border-radius:17px;overflow:hidden;padding-bottom:22px}.arh-related-card img{width:100%;height:190px;object-fit:cover}.arh-related-card span,.arh-related-card h3,.arh-related-card p{display:block;margin-left:22px;margin-right:22px}.arh-related-card span{margin-top:18px;color:#55708f;font-size:14px}.arh-related-card h3{font-size:23px;line-height:1.3;margin-top:8px}.arh-related-card p{color:#526078}
.arh-final-cta{text-align:center;background:#101a2d;color:#fff;padding:75px 0}.arh-final-cta h2{font-size:45px;color:#fff;margin:0 0 15px}.arh-final-cta p{font-size:19px;color:#dfe8f7}.arh-final-cta a{display:inline-block;margin:15px 7px 0;background:#0873d1;color:#fff;padding:15px 23px;border-radius:9px;text-decoration:none;font-weight:800}.arh-final-cta a.outline{background:transparent;border:2px solid #1681e5}
@media(max-width:850px){.arh-wrap{width:min(100% - 28px,1180px)}.arh-post-hero{padding:55px 0}.arh-content-grid{grid-template-columns:1fr;gap:25px}.arh-content{padding:25px 20px;font-size:17px}.arh-side{position:static}.arh-related-grid{grid-template-columns:1fr}.arh-meta{gap:10px 18px}.arh-related h2,.arh-final-cta h2{font-size:34px}}