/* ==========================================================================
   Research page
   ========================================================================== */

.research-block {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 2.5rem;
  align-items: start;
  margin-top: 2rem;
}

.research-text h3 {
  font-size: 1.05rem;
  margin-top: 1.6em;
  padding-left: 0.8em;
  border-left: 3px solid var(--color-accent-2);
}
/* research-blockの2カラムを使わず単独で置く場合は、本文の可読幅を保つ */
.research-text { max-width: 640px; }

.check-list {
  list-style: none;
  margin-bottom: 1.25em;
}
.check-list li {
  position: relative;
  padding-left: 1.6em;
  margin-bottom: 0.6em;
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.85em;
  height: 0.45em;
  border-left: 2.5px solid var(--color-accent);
  border-bottom: 2.5px solid var(--color-accent);
  transform: rotate(-45deg);
}

.research-figure {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.research-figure img { width: 100%; }
.research-figure figcaption {
  font-size: var(--fs-small);
  color: var(--color-muted);
  padding: 0.8em 1.2em;
  border-top: 1px solid var(--color-border);
}

.research-figure--wide {
  margin-top: 2.5rem;
  max-width: 760px;
}

/* 図中の細かい文字（番号付きステップ等）を読める大きさで見せる、コンテナ幅いっぱいの図版 */
.research-figure--full {
  margin-top: 2.5rem;
  max-width: 980px;
}

@media (max-width: 900px) {
  .research-block { grid-template-columns: 1fr; gap: 2rem; }
}