.seo-depth {
  width: min(1180px, calc(100% - 32px));
  margin: 28px auto;
  padding: clamp(22px, 4vw, 38px);
  border: 1px solid color-mix(in srgb, currentColor 18%, transparent);
  border-radius: 18px;
  background: color-mix(in srgb, #07111f 88%, transparent);
  color: #dce9f5;
  box-sizing: border-box;
}

.seo-depth h2 {
  margin: 0 0 14px;
  color: #fff;
  font-size: clamp(1.35rem, 2.4vw, 2rem);
}

.seo-depth p {
  max-width: 82ch;
  margin: 10px 0 0;
  font-size: 1rem;
  line-height: 1.75;
}

.seo-depth a { color: #7edcff; }

@media (max-width: 600px) {
  .seo-depth { width: calc(100% - 20px); padding: 20px; }
}