*{box-sizing:border-box}html{scroll-behavior:smooth}.seo-nav{display:flex;justify-content:space-between;align-items:center;gap:18px;max-width:1240px;margin:auto;padding:14px 24px;color:#33245e;font:14px/1.5 system-ui,sans-serif}.seo-nav div{display:flex;gap:16px}.seo-nav a{text-decoration:none}.seo-nav a:hover,.seo-nav a[aria-current]{text-decoration:underline}.seo-content{max-width:1100px;margin:40px auto;padding:32px 24px;color:#17132e;font:16px/1.8 system-ui,sans-serif}.seo-content h1{font-size:clamp(30px,5vw,48px);line-height:1.2;letter-spacing:-.025em;margin:20px 0}.seo-content h2{font-size:24px;font-weight:750;margin:32px 0 12px}.seo-content p{margin:12px 0}.seo-content .intro{font-size:19px;color:#514867;max-width:850px}.seo-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.seo-card{display:block;padding:22px;border:1px solid #ddd7ee;border-radius:18px;background:#faf8ff;color:#34215b;text-decoration:none}.seo-card:hover{border-color:#6940d8}.seo-card strong{display:block;font-size:19px;line-height:1.5}.seo-contact{display:inline-block;background:#5b2ee5;color:white;padding:12px 22px;border-radius:28px;text-decoration:none}.seo-note{font-size:14px;color:#605875;border-top:1px solid #e4dff0;padding-top:20px}.service-body{margin:0;background:#fff;color:#17132e;font-family:system-ui,sans-serif}.service-body .seo-content{max-width:900px}.service-body footer{background:#f7f5fc}.service-body a{color:#5024c3}.service-body a.seo-contact{color:#fff}@media(max-width:650px){.seo-grid{grid-template-columns:1fr}.seo-nav{padding:12px 18px;flex-wrap:wrap}.seo-content{padding:24px 18px}.seo-content h2{font-size:22px}}