.seo-topic { overflow: clip; }
.seo-topic-hero { min-height: 650px; display: grid; grid-template-columns: 1fr 1fr; border-bottom: 1px solid var(--rd-line); background: #fff; }
.seo-topic-copy { padding: clamp(54px, 7vw, 108px); display: flex; flex-direction: column; justify-content: center; }
.seo-topic-copy h1 { max-width: 720px; margin: 0 0 22px; font-size: clamp(44px, 5.4vw, 76px); line-height: 1.02; letter-spacing: 0; }
.seo-topic-copy .lead { max-width: 660px; margin: 0; }
.seo-topic-actions { margin-top: 28px; display: flex; align-items: center; flex-wrap: wrap; gap: 14px 20px; }
.seo-topic-actions span { max-width: 310px; color: var(--rd-muted); font-size: 13px; line-height: 1.45; }
.seo-topic-media { min-height: 650px; overflow: hidden; background: #e7e8ea; }
.seo-topic-media img { width: 100%; height: 100%; display: block; object-fit: cover; object-position: center top; }
.seo-topic-intro { padding: 76px clamp(20px, 7vw, 108px); display: grid; grid-template-columns: 1.25fr .75fr; gap: clamp(40px, 8vw, 120px); align-items: center; background: var(--rd-soft); }
.seo-topic-intro h2, .seo-topic-prompt h2, .seo-topic-related h2, .seo-topic-final h2 { margin: 0 0 16px; font-size: clamp(32px, 4vw, 52px); line-height: 1.08; letter-spacing: 0; }
.seo-topic-intro p { max-width: 780px; color: var(--rd-muted); font-size: 17px; line-height: 1.65; }
.seo-topic-intro ul { margin: 0; padding: 0; display: grid; border: 1px solid var(--rd-line); list-style: none; background: #fff; }
.seo-topic-intro li { padding: 18px 20px; border-bottom: 1px solid var(--rd-line); font-weight: 800; }
.seo-topic-intro li:last-child { border-bottom: 0; }
.seo-topic-intro li::before { content: "✓"; margin-right: 10px; color: var(--rd-green); }
.seo-topic-steps { display: grid; grid-template-columns: repeat(3, 1fr); background: var(--rd-ink); color: #fff; }
.seo-topic-steps article { min-height: 310px; padding: clamp(30px, 5vw, 68px); border-right: 1px solid #44474e; }
.seo-topic-steps article:last-child { border-right: 0; }
.seo-topic-steps span { color: var(--rd-yellow); font-size: 25px; font-weight: 900; }
.seo-topic-steps h2 { margin: 20px 0 10px; color: #fff; font-size: 24px; letter-spacing: 0; }
.seo-topic-steps p { margin: 0; color: #cfd1d6; line-height: 1.6; }
.seo-topic-prompt { padding: 86px clamp(20px, 7vw, 108px); display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(34px, 7vw, 100px); align-items: center; }
.seo-topic-prompt blockquote { margin: 24px 0 16px; padding: 22px 24px; border-left: 4px solid var(--rd-yellow); background: var(--rd-soft); font-size: 18px; font-weight: 750; line-height: 1.55; }
.seo-topic-prompt p { color: var(--rd-muted); line-height: 1.6; }
.seo-topic-prompt .primary-button { margin-top: 12px; }
.seo-topic-prompt img { width: 100%; max-height: 560px; display: block; object-fit: cover; border: 1px solid var(--rd-line); }
.seo-topic-related { padding: 78px clamp(20px, 7vw, 108px); background: var(--rd-soft); }
.seo-topic-links, .seo-entry-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.seo-topic-links a, .seo-entry-grid a { min-height: 118px; padding: 22px; display: flex; flex-direction: column; justify-content: space-between; gap: 10px; border: 1px solid var(--rd-line); border-radius: 5px; background: #fff; }
.seo-topic-links a:hover, .seo-entry-grid a:hover { border-color: var(--rd-red); }
.seo-topic-links strong, .seo-entry-grid strong { font-size: 18px; }
.seo-topic-links span, .seo-entry-grid span { color: var(--rd-muted); font-size: 13px; line-height: 1.4; }
.seo-topic-final { padding: 54px clamp(20px, 7vw, 108px); display: flex; align-items: center; justify-content: space-between; gap: 28px; background: var(--rd-yellow); }
.seo-topic-final h2 { margin-bottom: 8px; }
.seo-topic-final p { max-width: 760px; margin: 0; line-height: 1.55; }
.seo-entry-section { padding: 76px clamp(20px, 6vw, 96px); border-bottom: 1px solid var(--rd-line); background: var(--rd-soft); }
.seo-entry-grid { grid-template-columns: repeat(3, 1fr); }

@media (max-width: 860px) {
  .seo-topic-hero, .seo-topic-intro, .seo-topic-prompt { grid-template-columns: 1fr; }
  .seo-topic-media { min-height: 440px; }
  .seo-topic-steps { grid-template-columns: 1fr; }
  .seo-topic-steps article { min-height: 0; border-right: 0; border-bottom: 1px solid #44474e; }
  .seo-topic-steps article:last-child { border-bottom: 0; }
  .seo-topic-links, .seo-entry-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px) {
  .seo-topic-copy { padding: 44px 18px; }
  .seo-topic-copy h1 { font-size: 40px; }
  .seo-topic-actions { align-items: stretch; flex-direction: column; }
  .seo-topic-actions .primary-button { width: 100%; }
  .seo-topic-media { min-height: 330px; }
  .seo-topic-intro, .seo-topic-prompt, .seo-topic-related, .seo-entry-section { padding: 58px 18px; }
  .seo-topic-prompt img { max-height: 390px; }
  .seo-topic-links, .seo-entry-grid { grid-template-columns: 1fr; }
  .seo-topic-final { padding: 48px 18px; align-items: stretch; flex-direction: column; }
  .seo-topic-final .primary-button { width: 100%; }
}