/* column/detail-article01.html / detail-article02.html 共通スタイル */
:root {
  --color-primary: #1976d2;
  --color-primary-dark: #0d47a1;
  --gradient-blue-vertical: linear-gradient(to bottom, #004a99 0%, #00aaff 100%);
  --color-text: #222;
  --header-height: 62px;
  --font-family-base: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
}
* { box-sizing: border-box; }
html, body { margin: 0; font-family: var(--font-family-base); background: #fff; color: #111; }
a { color: inherit; text-decoration: none; }

.column-detail-hero {
  position: relative;
  padding-top: var(--header-height);
  min-height: 200px;
  overflow: hidden;
}
.column-detail-hero__img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}
@media (min-width: 769px) {
  .column-detail-hero { min-height: 400px; }
}

.column-detail { width: 100%; padding: 60px 4vw 80px; background: #fff; }
.column-detail__inner { max-width: 800px; margin: 0 auto; }
.column-detail__title {
  font-size: 32px;
  font-weight: 700;
  color: #111;
  line-height: 1.6;
  margin: 0 0 32px 0;
  letter-spacing: 0.02em;
  text-align: center;
}
.column-detail__img-wrap {
  position: relative;
  width: 100%;
  margin-bottom: 40px;
  overflow: hidden;
  border-radius: 4px;
}
.column-detail__img-wrap img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  display: block;
}
.column-detail__body p {
  font-size: 15px;
  line-height: 2;
  color: #333;
  margin: 0 0 24px 0;
  letter-spacing: 0.03em;
}
.column-detail__body p:last-child { margin-bottom: 0; }
.column-detail__profile {
  position: relative;
  background: #fff;
  padding: 44px 48px 44px 56px;
  margin: 52px 0;
  border: 2px solid #1976d2;
  box-shadow: inset 0 0 0 1px rgba(25, 118, 210, 0.2), 0 8px 24px rgba(25, 118, 210, 0.1);
  overflow: visible;
}
.column-detail__profile::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 10px;
  right: 10px;
  bottom: 10px;
  border: 1px solid rgba(25, 118, 210, 0.3);
  pointer-events: none;
}
.column-detail__profile-title {
  display: inline-block;
  font-size: 12px;
  font-weight: 800;
  color: #fff;
  background: linear-gradient(135deg, #1976d2, #42a5f5);
  padding: 6px 14px;
  margin: 0 0 20px 0;
  letter-spacing: 0.15em;
  border-radius: 4px;
  text-transform: uppercase;
}
.column-detail__profile-name {
  font-size: 24px;
  font-weight: 700;
  color: #0d47a1;
  margin: 0 0 20px 0;
  letter-spacing: 0.08em;
  position: relative;
  padding-bottom: 16px;
}
.column-detail__profile-name::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 48px;
  height: 3px;
  background: linear-gradient(to right, #1976d2, #42a5f5);
  border-radius: 2px;
}
.column-detail__profile-text {
  font-size: 16px;
  line-height: 2;
  color: #444;
  margin: 0;
  letter-spacing: 0.02em;
}
.column-detail__qa {
  margin: 48px 0 0 0;
}
.column-detail__qa-item {
  margin-bottom: 48px;
}
.column-detail__qa-item:last-child { margin-bottom: 0; }
.column-detail__qa-q {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 20px 0;
  padding-bottom: 12px;
  border-bottom: 2px solid #e0e0e0;
  letter-spacing: 0.02em;
}
.column-detail__qa-a {
  font-size: 18px;
  line-height: 2;
  color: #333;
  margin: 0;
  letter-spacing: 0.03em;
}
.column-detail__qa-a p { margin-bottom: 20px; }
.column-detail__qa-a p:last-child { margin-bottom: 0; }
.column-detail__btn-wrap { text-align: center; margin-top: 56px; }
.column-detail__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 200px;
  height: 50px;
  padding: 0 32px;
  background: var(--gradient-blue-vertical);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.05em;
  border: none;
  border-radius: 0;
  cursor: pointer;
  transition: filter 0.2s, transform 0.2s;
  box-shadow: 0 4px 12px rgba(25, 118, 210, 0.35);
}
.column-detail__btn:hover { filter: brightness(1.08); transform: translateY(-2px); }

.pc-br { display: inline; }
@media (max-width: 768px) {
  .pc-br { display: none; }
  .header__inner { padding: 0 16px; }
  .header__inner .header__nav { display: none; }
  .header > .header__tabs { display: none; }
  .header__drawer .header__nav { display: flex !important; }
  .header__drawer .header__tabs { display: flex !important; }
  .header__logo img { height: 52px; max-width: 240px; }
  .column-detail-hero { min-height: 120px; }
  .column-detail { padding: 40px 4vw 60px; }
  .column-detail__title { font-size: 24px; }
  .column-detail__profile { padding: 24px 20px 24px 24px; }
  .column-detail__qa-q { font-size: 20px; }
  .column-detail__qa-a { font-size: 18px; }
}