.seooc-proof {
  scroll-margin-top: 5rem;
  border-block: 1px solid #dfe3e6;
  background: #f7f9fb;
  color: #1b1b1b;
}

.seooc-proof * {
  box-sizing: border-box;
}

.seooc-proof-header {
  max-width: 52rem;
  margin-inline: auto;
  text-align: center;
}

.seooc-proof-kicker,
.seooc-proof-domain {
  margin: 0 0 0.5rem;
  color: #005ea8;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.seooc-proof-header h2 {
  margin: 0;
  color: #162e51;
}

.seooc-proof-header > p:last-child {
  margin: 1rem auto 0;
  color: #454545;
  line-height: 1.65;
}

.seooc-proof-overviews {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  max-width: 56rem;
  margin: 2rem auto 0;
}

.seooc-proof-overview,
.seooc-proof-card {
  overflow: hidden;
  margin: 0;
  border: 1px solid #dfe3e6;
  border-radius: 0.25rem;
  background: #fff;
  box-shadow: 0 8px 24px rgba(22, 46, 81, 0.08);
}

.seooc-proof-overview > a,
.seooc-proof-serp-frame {
  display: block;
  overflow: hidden;
  border-bottom: 1px solid #dfe3e6;
  background: #eef1f7;
}

.seooc-proof-overview img {
  display: block;
  width: 100%;
  height: auto;
}

.seooc-proof-overview figcaption {
  display: grid;
  gap: 0.35rem;
  padding: 1rem 1.15rem;
  color: #454545;
  font-size: 0.9rem;
  line-height: 1.5;
}

.seooc-proof-overview strong {
  color: #162e51;
  font-size: 1rem;
}

.seooc-proof-method {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem 1.5rem;
  max-width: 68rem;
  margin: 2rem auto 0;
  padding: 1rem 1.25rem;
  border-block: 1px solid #dfe3e6;
  color: #565c65;
  font-size: 0.84rem;
}

.seooc-proof-method strong {
  color: #005ea8;
}

.seooc-proof-case {
  max-width: 68rem;
  margin: 3rem auto 0;
}

.seooc-proof-case + .seooc-proof-case {
  padding-top: 3rem;
  border-top: 1px solid #dfe3e6;
}

.seooc-proof-case-header {
  display: grid;
  grid-template-columns: minmax(14rem, 0.55fr) minmax(0, 1fr);
  gap: 2rem;
  align-items: end;
  margin-bottom: 1.5rem;
}

.seooc-proof-case-header h3 {
  margin: 0;
  color: #162e51;
}

.seooc-proof-case-header p {
  margin: 0;
  color: #454545;
  line-height: 1.6;
}

.seooc-proof-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
}

.seooc-proof-serp-frame {
  aspect-ratio: 4 / 3;
  background: #202124;
}

.seooc-proof-serp-frame img {
  display: block;
  width: 230%;
  max-width: none;
  height: auto;
  transform-origin: left top;
  transition: opacity 150ms ease;
}

.seooc-proof-serp-frame:hover img {
  opacity: 0.92;
}

.seooc-proof-card figcaption {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.5rem 0.75rem;
  align-items: center;
  padding: 1.25rem;
}

.seooc-proof-rank {
  padding: 0.35rem 0.55rem;
  border-radius: 0.15rem;
  background: #005ea8;
  color: #fff;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.seooc-proof-card figcaption > strong {
  color: #162e51;
  font-size: 0.95rem;
}

.seooc-proof-card figcaption > span:not(.seooc-proof-rank),
.seooc-proof-card figcaption small,
.seooc-proof-card figcaption a {
  grid-column: 1 / -1;
}

.seooc-proof-card figcaption > span:not(.seooc-proof-rank) {
  color: #454545;
  font-size: 0.86rem;
}

.seooc-proof-card figcaption small {
  color: #71767a;
  font-size: 0.75rem;
  line-height: 1.5;
}

.seooc-proof-card figcaption a {
  width: fit-content;
  color: #005ea8;
  font-size: 0.84rem;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 0.2rem;
}

.seooc-proof-note {
  max-width: 58rem;
  margin: 2rem auto 0;
  color: #71767a;
  font-size: 0.8rem;
  line-height: 1.6;
  text-align: center;
}

@media (max-width: 40rem) {
  .seooc-proof-overviews,
  .seooc-proof-grid,
  .seooc-proof-case-header {
    grid-template-columns: 1fr;
  }

  .seooc-proof-case-header {
    gap: 0.75rem;
  }

  .seooc-proof-method {
    justify-content: flex-start;
  }
}