.ivc .seo{
  background: #ffffff;
  border-top: 1px solid #ded5c2;
  padding: 64px 0 20px;
  font-family: 'Plus Jakarta Sans', system-ui, sans-serif;
  color: #14406f;
}
.ivc .seo-in{ max-width: 1200px; margin: 0 auto; padding: 0 40px; }

.ivc .seo section{ padding: 34px 0; border-top: 1px solid #ded5c2; }
.ivc .seo section:first-of-type{ border-top: 0; padding-top: 0; }

.ivc .seo h2{
  font-family: 'Fraunces', Georgia, serif;
  font-size: clamp(24px, 2.6vw, 33px);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: #0d1526;
  margin: 0 0 8px;
}
.ivc .seo h3{
  font-size: 17px;
  font-weight: 700;
  color: #0d1526;
  margin: 26px 0 8px;
  letter-spacing: -0.01em;
}
.ivc .seo h4{ font-size: 14.5px; font-weight: 700; color: #14406f; margin: 18px 0 6px; }

.ivc .seo p,.ivc .seo li{
  font-size: 15px;
  line-height: 1.78;
  color: #24518f;
  max-width: 72ch;
}
.ivc .seo p{ margin: 0 0 14px; }
.ivc .seo ul,.ivc .seo ol{ margin: 0 0 16px; padding-left: 22px; }
.ivc .seo li{ margin-bottom: 8px; }
.ivc .seo strong{ color: #0d1526; font-weight: 700; }
.ivc .seo a{ color: #B45309; text-decoration: underline; text-underline-offset: 2px; }
.ivc .seo a:hover{ color: #92400E; }

.ivc .seo .lede{ font-size: 16.5px; line-height: 1.75; color: #14406f; max-width: 74ch; }
.ivc .seo .kick{
  display: inline-block;
  font-size: 10.5px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
  color: #B45309; margin-bottom: 10px;
}

.ivc .seo-tw{ overflow-x: auto; margin: 0 0 18px; -webkit-overflow-scrolling: touch; }
.ivc .seo table{ border-collapse: collapse; width: 100%; min-width: 520px; font-size: 13.5px; }
.ivc .seo th,.ivc .seo td{ padding: 10px 14px; text-align: left; border-bottom: 1px solid #ded5c2; }
.ivc .seo th{
  background: #f8f4ea; font-weight: 700; color: #0d1526;
  font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.06em;
  position: sticky; top: 0;
}
.ivc .seo td{ color: #24518f; }
.ivc .seo td.num,.ivc .seo th.num{ text-align: right; font-family: 'JetBrains Mono', ui-monospace, monospace; }
.ivc .seo tbody tr:hover td{ background: #fff8e6; }
.ivc .seo caption{
  caption-side: bottom; text-align: left; font-size: 12px; color: #5a6b87;
  padding-top: 10px; line-height: 1.6;
}

.ivc .seo-faq{ border: 1px solid #ded5c2; border-radius: 14px; overflow: hidden; background: #fff; }
.ivc .seo-faq details{ border-bottom: 1px solid #ded5c2; }
.ivc .seo-faq details:last-child{ border-bottom: 0; }
.ivc .seo-faq summary{
  padding: 15px 46px 15px 18px;
  font-size: 14.5px; font-weight: 600; color: #0d1526;
  cursor: pointer; position: relative; list-style: none;
}
.ivc .seo-faq summary::-webkit-details-marker{ display: none; }
.ivc .seo-faq summary::after{
  content: '+'; position: absolute; right: 18px; top: 50%; transform: translateY(-50%);
  font-size: 20px; font-weight: 400; color: #B45309; line-height: 1;
}
.ivc .seo-faq details[open] summary::after{ content: '−'; }
.ivc .seo-faq summary:hover{ background: #fff8e6; }
.ivc .seo-faq .a{ padding: 0 18px 16px; }
.ivc .seo-faq .a p{ margin: 0 0 10px; font-size: 14.5px; }
.ivc .seo-faq .a p:last-child{ margin: 0; }

.ivc .seo-note{
  border-left: 3px solid #f5b921; background: #fff8e6;
  padding: 14px 18px; border-radius: 0 10px 10px 0; margin: 0 0 18px;
}
.ivc .seo-note p:last-child{ margin: 0; }
.ivc .seo-note.warn{ border-left-color: #c92a1f; background: #fdeae7; }

.ivc .seo-eg{ background: #fff; border: 1px solid #ded5c2; border-radius: 14px; padding: 20px 22px; margin: 0 0 18px; }
.ivc .seo-eg h4{ margin-top: 0; }
.ivc .seo-eg dl{ margin: 0; display: grid; grid-template-columns: 1fr auto; gap: 0; }
.ivc .seo-eg dt,.ivc .seo-eg dd{
  padding: 8px 0; border-bottom: 1px solid #f8f4ea; margin: 0; font-size: 14px;
}
.ivc .seo-eg dt{ color: #4a5c78; }
.ivc .seo-eg dd{ text-align: right; font-family: 'JetBrains Mono', ui-monospace, monospace; color: #0d1526; }
.ivc .seo-eg .tot{ display: contents; }
.ivc .seo-eg .tot dt,.ivc .seo-eg .tot dd{ font-weight: 700; color: #0d1526; border-bottom: 0; border-top: 2px solid #14406f; }
.ivc .seo-eg .tot + .tot dt,.ivc .seo-eg .tot + .tot dd{ border-top: 1px solid #ded5c2; }

.ivc .seo-steps{ list-style: none; padding: 0; counter-reset: s; }
.ivc .seo-steps li{
  counter-increment: s; position: relative; padding-left: 44px; margin-bottom: 16px; max-width: 72ch;
}
.ivc .seo-steps li::before{
  content: counter(s); position: absolute; left: 0; top: 0;
  width: 28px; height: 28px; border-radius: 50%;
  background: #0d1526; color: #ffd24d;
  font-size: 13px; font-weight: 700; display: flex; align-items: center; justify-content: center;
}

.ivc .seo-rel{ display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 14px; }
.ivc .seo-rel a{
  display: block; padding: 18px; border: 1px solid #ded5c2; border-radius: 14px;
  background: #fff; text-decoration: none; transition: border-color .2s, transform .2s, box-shadow .2s;
}
.ivc .seo-rel a:hover{ border-color: #f5b921; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,.06); }
.ivc .seo-rel .t{ font-size: 15px; font-weight: 700; color: #0d1526; margin-bottom: 5px; }
.ivc .seo-rel .d{ font-size: 13px; line-height: 1.6; color: #5a6b87; }

.ivc .seo-gloss{ display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px 28px; }
.ivc .seo-gloss div{ max-width: 46ch; }
.ivc .seo-gloss dt{ font-size: 14px; font-weight: 700; color: #0d1526; margin-bottom: 3px; }
.ivc .seo-gloss dd{ margin: 0; font-size: 13.5px; line-height: 1.7; color: #4a5c78; }

.ivc .seo-upd{ font-size: 12.5px; color: #5a6b87; padding: 20px 0 0; border-top: 1px solid #ded5c2; }

@media (max-width: 900px){
  .ivc .seo{ padding-top: 44px; }
  .ivc .seo-in{ padding: 0 20px; }
  .ivc .seo p,.ivc .seo li{ font-size: 14.5px; }
}

.ivc @media print{
  .seo { background: #fff; }
  .seo-faq details { display: block; }
  .seo-faq .a { display: block !important; }
}