:root{
  --ink:#142235;
  --muted:#667085;
  --line:#e6e9ee;
  --soft:#f6f8fa;
  --accent:#d52b1e;
  --accent-dark:#ad2117;
  --link:#0b5dbb;
  --max:980px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#fff;color:var(--ink);font-family:Arial,Helvetica,sans-serif;line-height:1.58;-webkit-font-smoothing:antialiased}
a{color:var(--link)}
a:hover{text-decoration-thickness:2px}
.ad-label{text-align:center;font-size:12px;color:#777;padding:9px 12px;border-bottom:1px solid #ededed;letter-spacing:.02em}
.sitebar{border-bottom:1px solid var(--line);background:#fff;position:sticky;top:0;z-index:20}
.sitebar__inner{max-width:var(--max);margin:0 auto;padding:17px 20px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:10px;font-size:22px;font-weight:800;letter-spacing:-.025em;color:#10243c;text-decoration:none}
.brand__mark{width:28px;height:28px;display:inline-block;flex:0 0 auto}
.brand span{color:var(--accent)}
.sitebar__tag{font-size:12px;color:#777;text-transform:uppercase;letter-spacing:.08em}
main{max-width:var(--max);margin:0 auto;padding:42px 20px 72px}
.article-head{max-width:900px;margin:0 auto 30px}
h1{font-size:46px;line-height:1.08;letter-spacing:-.035em;margin:0 0 18px;font-weight:800}
.dek{font-size:20px;line-height:1.55;color:#424b57;margin:0 0 12px;max-width:850px}
.note{font-size:13px;color:#777;margin-top:12px}
.hero{margin:32px 0 34px;border-radius:5px;overflow:hidden;background:#ddd}
.hero img,.benefit img{width:100%;height:auto;display:block}
.intro{font-size:18px;max-width:900px;margin:0 auto 38px}
.intro p{margin:0 0 16px}
.benefits{max-width:900px;margin:0 auto}
.benefit{padding:38px 0 46px;border-top:1px solid var(--line)}
.benefit:first-child{border-top:0;padding-top:0}
.benefit__num{font-size:15px;font-weight:800;color:#9a9a9a;letter-spacing:.12em;margin-bottom:8px}
.benefit h2{font-size:31px;line-height:1.18;letter-spacing:-.025em;margin:0 0 18px}
.benefit p{font-size:17px;margin:0 0 15px}
.benefit figure{margin:24px 0 22px;background:#eee;overflow:hidden;border-radius:4px}
.cta{display:inline-flex;align-items:center;gap:8px;font-size:16px;font-weight:700;color:#fff;background:var(--accent);padding:12px 17px;border-radius:4px;text-decoration:none}
.cta:hover{background:var(--accent-dark)}
.cta::after{content:'→';font-size:19px;line-height:1}
.source-line{font-size:12px;color:#777;margin-top:10px}
.disclosure{max-width:900px;margin:28px auto 0;padding:24px;border:1px solid var(--line);background:var(--soft);border-radius:4px}
.disclosure h3{margin:0 0 8px;font-size:17px}
.disclosure p{margin:0;font-size:14px;color:#555f6e}
footer{background:#10243c;color:#d9e0e8;padding:38px 20px 44px}
.footer__inner{max-width:var(--max);margin:0 auto}
.footer__grid{display:grid;grid-template-columns:2fr 1fr;gap:48px}
.footer__title{color:#fff;font-size:15px;margin:0 0 8px}
.footer__copy{font-size:13px;color:#bdc8d5;margin:0 0 14px;max-width:650px}
.footer__links{display:flex;gap:12px 18px;flex-wrap:wrap}
.footer__links a{color:#fff;font-size:13px}
.footer__legal{border-top:1px solid #2a415c;margin-top:28px;padding-top:22px;font-size:12px;color:#9fb0c3}
.policy{max-width:860px;margin:0 auto}
.policy h1{font-size:40px}
.policy h2{font-size:24px;margin:34px 0 10px}
.policy h3{font-size:18px;margin:24px 0 8px}
.policy p,.policy li{font-size:16px}
.policy .meta{font-size:13px;color:#777;margin-bottom:25px}
.policy .callout{background:#fff7f5;border-left:4px solid var(--accent);padding:16px 18px;margin:24px 0}
.legal-placeholder{border:1px dashed #b26a6a;background:#fff8f8;padding:18px;margin:20px 0}
.legal-placeholder strong{color:#8d1b1b}
@media (max-width:760px){
  main{padding:28px 16px 56px}
  .sitebar__inner{padding:14px 16px}
  .sitebar__tag{display:none}
  h1{font-size:34px}
  .dek{font-size:18px}
  .benefit{padding:30px 0 38px}
  .benefit h2{font-size:27px}
  .footer__grid{grid-template-columns:1fr;gap:20px}
}