.calc-seo-page {
  display: grid;
  gap: 1.4rem;
}

.calc-seo-hero {
  background:
    radial-gradient(circle at 12% 12%, rgba(217, 130, 43, .2), transparent 26rem),
    radial-gradient(circle at 92% 18%, rgba(18, 106, 114, .18), transparent 28rem),
    linear-gradient(135deg, #fffaf0 0%, #eef7f5 100%);
}

.calc-seo-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 1.2rem;
  align-items: start;
  min-width: 0;
}

.calc-seo-article,
.calc-seo-aside,
.calc-seo-card {
  border: 1px solid rgba(23, 33, 47, .12);
  border-radius: 24px;
  background: #fff;
  box-shadow: 0 14px 34px rgba(23, 33, 47, .08);
}

.calc-seo-article {
  padding: 1.4rem;
  min-width: 0;
  overflow-wrap: anywhere;
}

.calc-seo-article h2,
.calc-seo-article h3 {
  color: #17212f;
}

.calc-seo-article p,
.calc-seo-article li {
  color: #536477;
  line-height: 1.72;
}

.calc-seo-article ul {
  margin: .7rem 0 1rem;
  padding-left: 1.2rem;
}

.calc-seo-aside {
  position: sticky;
  top: 1rem;
  display: grid;
  gap: .9rem;
  padding: 1rem;
  min-width: 0;
}

.calc-seo-cta {
  border-radius: 20px;
  padding: 1rem;
  color: #fff;
  background:
    radial-gradient(circle at 20% 15%, rgba(255, 255, 255, .25), transparent 10rem),
    linear-gradient(135deg, #143b43, #17212f);
}

.calc-seo-cta h2 {
  margin: 0 0 .45rem;
  color: #fff;
}

.calc-seo-cta p {
  color: rgba(255, 255, 255, .82);
  line-height: 1.6;
}

.calc-seo-cta a,
.calc-seo-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: .45rem;
  border-radius: 999px;
  padding: .78rem 1rem;
  background: #d9822b;
  color: #fff;
  font-weight: 900;
  text-decoration: none;
  text-align: center;
}

.calc-keyword-list {
  display: flex;
  flex-wrap: wrap;
  gap: .45rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.calc-keyword-list li {
  border-radius: 999px;
  padding: .42rem .68rem;
  background: #f3f7f7;
  color: #31485e;
  font-size: .9rem;
  font-weight: 800;
}

.calc-related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: .85rem;
  min-width: 0;
}

.calc-seo-card {
  display: block;
  min-width: 0;
  padding: 1rem;
  color: #17212f;
  text-decoration: none;
  transition: transform .2s ease, box-shadow .2s ease;
}

.calc-seo-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 42px rgba(23, 33, 47, .12);
}

.calc-seo-card strong {
  display: block;
  margin-bottom: .35rem;
}

.calc-seo-card span {
  color: #627184;
  line-height: 1.55;
}

.calc-faq {
  display: grid;
  gap: .7rem;
}

.calc-faq details {
  border: 1px solid rgba(23, 33, 47, .1);
  border-radius: 16px;
  padding: .85rem 1rem;
  background: #fffdf8;
}

.calc-faq summary {
  cursor: pointer;
  color: #17212f;
  font-weight: 900;
}

.calc-faq p {
  margin-bottom: 0;
}

.calc-guide-hub {
  border: 1px solid rgba(23, 33, 47, .1);
  border-radius: 24px;
  padding: 1.2rem;
  background: linear-gradient(135deg, #fffdf8, #f3faf8);
  min-width: 0;
}

.guide-link-card {
  display: block;
  color: inherit;
  text-decoration: none;
  transition: transform .2s ease, box-shadow .2s ease;
}

.guide-link-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 42px rgba(23, 33, 47, .12);
}

@media (max-width: 980px) {
  .calc-seo-layout {
    grid-template-columns: 1fr;
  }

  .calc-seo-aside {
    position: static;
  }
}

@media (max-width: 640px) {
  .calc-seo-article,
  .calc-seo-aside,
  .calc-guide-hub {
    padding: 1rem;
  }

  .calc-seo-cta a,
  .calc-seo-button {
    width: 100%;
  }

  .calc-keyword-list li {
    font-size: .86rem;
  }
}

@media (max-width: 480px) {
  .calc-seo-page {
    gap: 1rem;
  }

  .calc-seo-article,
  .calc-seo-aside,
  .calc-seo-card,
  .calc-guide-hub {
    border-radius: 18px;
  }

  .calc-related-grid {
    grid-template-columns: 1fr;
  }

  .calc-faq details {
    padding: .8rem .85rem;
  }
}