.article-page{background:#f7fbfc;color:var(--ink)}.article-nav .brand{color:var(--navy)}.article-hero{padding:86px max(6vw,24px) 64px;background:linear-gradient(145deg,#eaf9fb,#fff)}.article-hero>div{max-width:900px;margin:auto}.breadcrumbs{font-size:.88rem;color:#52717b;margin-bottom:24px}.breadcrumbs a{color:#087f96}.article-hero h1{font-size:clamp(2.5rem,6vw,5.2rem);line-height:.98;letter-spacing:-.045em;margin:.15em 0}.article-hero .lead{max-width:760px}.article-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}.article-meta span{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid #d8eaee;color:#42616b;font-size:.82rem;font-weight:700}.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:52px;max-width:1120px;margin:0 auto;padding:70px 24px}.article-content{font-size:1.06rem;line-height:1.75}.article-content h2{font-size:clamp(1.7rem,3vw,2.5rem);line-height:1.15;margin:2em 0 .6em}.article-content h3{font-size:1.3rem;margin:1.6em 0 .4em}.article-content li{margin:.45em 0}.article-content .notice{padding:22px;border-radius:18px;background:#e9f8fa;border-left:5px solid #0aa4ad}.article-content .warning{background:#fff5ea;border-left-color:#ef9c45}.article-content table{width:100%;border-collapse:collapse;margin:26px 0;font-size:.94rem}.article-content th,.article-content td{padding:15px;text-align:left;vertical-align:top;border:1px solid #d5e7eb}.article-content th{background:var(--navy);color:#fff}.article-content tr:nth-child(even) td{background:#f2fafb}.article-content details{padding:17px 0;border-bottom:1px solid #d6e6ea}.article-content summary{cursor:pointer;font-weight:800}.article-side{align-self:start;position:sticky;top:100px}.side-box{padding:24px;border-radius:22px;background:var(--navy);color:#fff}.side-box h3{margin-top:0}.side-box p{color:#d9eff3}.side-box .button{display:block;text-align:center;background:#fff;color:var(--navy);margin-top:18px}.related{max-width:1120px;margin:0 auto;padding:20px 24px 80px}.related-grid,.guide-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.related a,.guide-card{padding:22px;border-radius:18px;background:#fff;border:1px solid #d8e8ec;box-shadow:0 10px 28px rgba(8,83,123,.06)}.related a strong,.guide-card strong{display:block;color:var(--navy);margin-bottom:6px}.related a span,.guide-card p{color:var(--muted)}.guide-hub{padding:80px max(6vw,24px)}.guide-hub .guide-grid{max-width:1160px;margin:auto}.guide-card{display:flex;flex-direction:column}.guide-card small{color:#078d9b;text-transform:uppercase;font-weight:800;letter-spacing:.08em}.guide-card h2{font-size:1.35rem;margin:12px 0}.guide-card b{margin-top:auto;color:#087f96}.source-list{font-size:.9rem;color:#4c6870}.source-list a{text-decoration:underline}
@media(max-width:850px){.article-layout{grid-template-columns:1fr}.article-side{position:static}.related-grid,.guide-grid{grid-template-columns:1fr}.article-content table{display:block;overflow-x:auto}.article-nav nav{display:none}}