.teikoku-seo-intro{max-width:1100px;margin:36px auto;padding:0 24px;color:#333}
.teikoku-seo-intro h1{font-size:clamp(24px,3vw,34px);line-height:1.65;margin:0 0 16px;color:#004f83}
.teikoku-seo-intro p{font-size:16px;line-height:1.9;margin:0 0 24px}
.teikoku-seo-intro h2{font-size:23px;line-height:1.6;margin:24px 0 0}
.teikoku-seo-breadcrumb{max-width:1100px;margin:16px auto;padding:0 24px;font-size:14px;line-height:1.8;overflow-wrap:anywhere}
.teikoku-seo-breadcrumb a,.teikoku-seo-related a{color:#005b96;text-decoration:underline;text-underline-offset:3px}
.teikoku-seo-related{margin:40px 0 20px;padding:24px;background:#f3f7fa;border-left:3px solid #005b96}
.teikoku-seo-related h2{font-size:21px;line-height:1.6;margin:0 0 12px;padding:0;border:0;background:none;color:#333}
.teikoku-seo-related ul{padding-left:1.3em;margin:0}
.teikoku-seo-related li{margin:8px 0;line-height:1.8}
p.header__heading{margin:0}
@media(max-width:600px){.teikoku-seo-intro{margin:24px auto;padding:0 18px}.teikoku-seo-related{padding:18px}.teikoku-seo-breadcrumb{padding:0 18px}}