.article-hero{padding:84px 0 66px;background:radial-gradient(circle at 82% 18%,#dce5ff 0,transparent 29%),linear-gradient(145deg,#fff,#f5f7ff)}
.article-hero .article-back{display:inline-flex;margin-bottom:32px;color:#3150d8;font-size:.72rem;font-weight:850;letter-spacing:.08em;text-decoration:none}
.article-hero-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(260px,.65fr);gap:70px;align-items:end}
.article-meta{color:#3854e0;font-size:.67rem;font-weight:900;letter-spacing:.13em}.article-hero h1{max-width:930px;margin:14px 0 22px;color:#101858;font-size:clamp(3rem,5.6vw,6.1rem);line-height:.96;letter-spacing:-.055em}
.article-hero p{max-width:760px;color:#64708f;font-size:1.08rem;line-height:1.75}.article-summary{padding:28px;border:1px solid #dbe2f3;border-radius:22px;background:#fff;box-shadow:0 20px 48px #1a327717}.article-summary span{display:block;margin-bottom:15px;color:#3854df;font-size:.62rem;font-weight:900;letter-spacing:.12em}.article-summary strong{display:block;color:#152067;font-size:1.18rem;line-height:1.35}.article-summary small{display:block;margin-top:15px;color:#75809b;line-height:1.55}
.article-body{background:#fff}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:80px;align-items:start}.article-copy{max-width:790px}.article-copy section{padding:0 0 38px;margin:0 0 38px;border-bottom:1px solid #e3e7f1}.article-copy section:last-child{border-bottom:0}.article-copy h2{margin:0 0 15px;color:#152067;font-size:clamp(1.8rem,3vw,2.7rem);line-height:1.08;letter-spacing:-.035em}.article-copy p{margin:0;color:#5e6987;font-size:1.04rem;line-height:1.82}.article-aside{position:sticky;top:110px}.article-checklist{padding:27px;border-radius:22px;background:#111958;color:#fff;box-shadow:0 22px 48px #172e8b29}.article-checklist span{color:#9fb0f5;font-size:.62rem;font-weight:900;letter-spacing:.12em}.article-checklist h2{margin:12px 0 20px;font-size:1.45rem}.article-checklist ul{display:grid;gap:13px;margin:0;padding:0;list-style:none}.article-checklist li{position:relative;padding-left:25px;color:#d7ddf7;font-size:.9rem;line-height:1.5}.article-checklist li:before{content:'✓';position:absolute;left:0;color:#7fa0ff;font-weight:900}.article-aside .btn{display:block;margin-top:14px;text-align:center}.article-related{background:#f5f7ff}.article-related h2{margin:0 0 25px;color:#101858;font-size:clamp(2rem,3.5vw,3.4rem);letter-spacing:-.04em}.related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.related-grid a{display:flex;justify-content:space-between;gap:24px;align-items:center;padding:24px;border:1px solid #dce2f0;border-radius:18px;background:#fff;color:#17236a;font-weight:850;text-decoration:none;transition:.25s}.related-grid a:hover{transform:translateY(-3px);border-color:#3552e8;box-shadow:0 16px 32px #172c7a14}
@media(max-width:900px){.article-hero-grid,.article-layout{grid-template-columns:1fr}.article-hero-grid{gap:32px}.article-layout{gap:45px}.article-aside{position:static}.article-summary{max-width:520px}}
@media(max-width:620px){.article-hero{padding:62px 0 48px}.article-hero h1{font-size:3rem}.article-body{padding-top:62px}.related-grid{grid-template-columns:1fr}.article-copy p{font-size:1rem}}