.zch-stack {
  --zch-ink: #172033;
  --zch-muted: #667085;
  --zch-line: #e5eaf1;
  --zch-blue: #155eef;
  display: grid;
  gap: 28px;
  margin: 48px 0;
  color: var(--zch-ink);
  font-family: Inter, "Noto Sans JP", system-ui, -apple-system, sans-serif;
}

.zch-stack * { box-sizing: border-box; }

.zch-cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 28px;
  align-items: center;
  padding: clamp(24px, 4vw, 36px);
  border: 1px solid #dbe7ff;
  border-radius: 18px;
  background: linear-gradient(135deg, #f8fbff 0%, #eef5ff 100%);
  box-shadow: 0 12px 30px rgba(21, 94, 239, .08);
}

.zch-stack.zch-stack--mid { margin: 40px 0; }

.zch-stack--mid .zch-cta--mid {
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  padding: clamp(20px, 3vw, 28px);
  border-left: 4px solid var(--zch-blue);
  border-radius: 16px;
  background: #f8fbff;
  box-shadow: 0 8px 22px rgba(21, 94, 239, .06);
}

.zch-stack--mid .zch-cta__logo { width: min(240px, 100%); margin-bottom: 12px; }
.zch-stack--mid .zch-cta__title { font-size: clamp(20px, 2.5vw, 23px); }
.zch-stack--mid .zch-cta__text { margin-top: 8px; font-size: 14px; }
.zch-stack--mid .zch-cta__button {
  justify-self: start;
  width: min(280px, 100%);
  min-height: 50px;
  padding: 0 24px;
}

.zch-cta__logo {
  display: block;
  width: min(350px, 100%);
  height: auto;
  margin: 0 0 14px;
}

.zch-cta__title,
.zch-related h2 {
  margin: 0;
  color: var(--zch-ink);
  letter-spacing: -.02em;
}

.zch-cta__title { font-size: clamp(22px, 3vw, 28px); line-height: 1.45; }
.zch-cta__text { max-width: 650px; margin: 10px 0 0; color: var(--zch-muted); font-size: 15px; line-height: 1.8; }

.zch-cta__button {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 12px;
  color: #fff;
  background: var(--zch-blue);
  box-shadow: 0 8px 18px rgba(21, 94, 239, .22);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.4;
  text-decoration: none;
  transition: transform .25s cubic-bezier(.4,0,.2,1), box-shadow .25s cubic-bezier(.4,0,.2,1), background .25s cubic-bezier(.4,0,.2,1);
}

.zch-cta__button:hover,
.zch-cta__button:focus-visible {
  color: #fff;
  background: #0b4fd7;
  box-shadow: 0 12px 24px rgba(21, 94, 239, .28);
  transform: translateY(-2px);
}

.zch-related {
  padding: clamp(22px, 3vw, 30px);
  border: 1px solid var(--zch-line);
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 10px 26px rgba(16, 24, 40, .05);
}

.zch-related__heading { display: flex; gap: 10px; align-items: center; margin-bottom: 18px; }
.zch-related__heading h2 { font-size: clamp(19px, 2.5vw, 23px); line-height: 1.45; }
.zch-related__icon { display: grid; width: 28px; height: 28px; place-items: center; border-radius: 8px; color: var(--zch-blue); background: #edf4ff; font-weight: 700; }
.zch-related__list { display: grid; grid-template-columns: 1fr; gap: 12px; margin: 0; padding: 0; list-style: none; }
.zch-related__item { margin: 0; padding: 0; }
.mc_crypto-manager-0112 .mc_detail_news ul.zch-related__list { display: grid; grid-template-columns: 1fr; margin: 0; padding: 0; list-style: none; }
.mc_crypto-manager-0112 .mc_detail_news ul.zch-related__list > li.zch-related__item { margin: 0; padding: 0; list-style: none; }
.mc_crypto-manager-0112 .mc_detail_news ul.zch-related__list > li.zch-related__item::before { display: none; content: none; }

.zch-related__item a {
  position: relative;
  display: flex;
  min-height: 132px;
  flex-direction: column;
  padding: 17px 38px 17px 17px;
  border: 1px solid var(--zch-line);
  border-radius: 12px;
  color: var(--zch-ink);
  background: #fbfcfe;
  text-decoration: none;
  transition: transform .25s cubic-bezier(.4,0,.2,1), border-color .25s cubic-bezier(.4,0,.2,1), box-shadow .25s cubic-bezier(.4,0,.2,1);
}

.zch-related__item a:hover,
.zch-related__item a:focus-visible { border-color: #b7ccfa; box-shadow: 0 10px 20px rgba(16, 24, 40, .07); transform: translateY(-2px); }
.zch-related__meta { margin-bottom: 7px; color: var(--zch-muted); font-size: 11px; font-weight: 600; }
.zch-related__title { display: -webkit-box; overflow: hidden; font-size: 14px; font-weight: 700; line-height: 1.65; -webkit-box-orient: vertical; -webkit-line-clamp: 3; }
.zch-related__arrow { position: absolute; right: 16px; bottom: 15px; color: var(--zch-blue); font-size: 17px; }

@media (max-width: 760px) {
  .zch-cta { grid-template-columns: 1fr; gap: 20px; }
  .zch-cta__button { width: 100%; }
  .zch-stack--mid .zch-cta__button { width: 100%; }
  .zch-related__item a { min-height: auto; }
}

@media (prefers-reduced-motion: reduce) {
  .zch-stack a { transition: none; }
}