:root{color-scheme:light;--ink:#10213d;--muted:#53657e;--line:#dce5f0;--blue:#1f5fae;--deep:#12366f;--soft:#f3f7fc}
*{box-sizing:border-box}
body{margin:0;background:#f7f9fc;color:var(--ink);font-family:Inter,Arial,sans-serif;line-height:1.65}
a{color:var(--blue)}
.seo-wrap{width:min(100% - 36px,1040px);margin:0 auto}
.seo-header{background:#fff;border-bottom:1px solid var(--line)}
.seo-header-inner{min-height:68px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.seo-brand{color:var(--deep);font-weight:800;letter-spacing:.06em;text-decoration:none}
.seo-nav{display:flex;flex-wrap:wrap;gap:16px}
.seo-nav a{font-size:14px;font-weight:600;text-decoration:none}
.seo-hero{margin:34px 0 26px;padding:34px clamp(22px,5vw,52px);border:1px solid #d9e6f5;border-radius:18px;background:linear-gradient(135deg,#fff,#edf5ff)}
.seo-kicker{color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.12em;text-transform:uppercase}
h1{max-width:800px;margin:8px 0 12px;font-size:clamp(32px,6vw,48px);line-height:1.12;letter-spacing:-.04em}
.seo-lead{max-width:760px;margin:0;color:#425875;font-size:18px}
.seo-cta{display:inline-flex;margin-top:22px;padding:12px 20px;border-radius:9px;background:var(--blue);color:#fff;font-weight:700;text-decoration:none}
.seo-content{padding:4px 0 36px}
.seo-content h2{margin:28px 0 8px;font-size:23px;line-height:1.3}
.seo-content p,.seo-content li{max-width:820px;color:var(--muted)}
.seo-content ul{padding-left:22px}
.seo-note{margin-top:20px;padding:14px 17px;border-left:4px solid #75a7df;background:#edf5ff;color:#344d6b}
.seo-related{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0}
.seo-related a{padding:8px 12px;border:1px solid var(--line);border-radius:8px;background:#fff;font-weight:600;text-decoration:none}
.seo-footer{padding:20px 0 28px;border-top:1px solid var(--line);color:var(--muted);font-size:14px}
@media(max-width:640px){.seo-header-inner{align-items:flex-start;flex-direction:column;padding:14px 0}.seo-nav{gap:9px 14px}.seo-hero{margin-top:20px}.seo-lead{font-size:16px}}