.column-detail-body {
  background:
    radial-gradient(circle at 92% 5%, rgba(95, 130, 200, 0.14), transparent 26%),
    #f2f5fa;
}

.column-detail-main {
  margin: 0 auto;
  max-width: 1180px;
  padding: clamp(42px, 6vw, 78px) clamp(20px, 5vw, 64px) clamp(72px, 9vw, 120px);
}

.column-detail-article {
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid rgba(49, 95, 168, 0.12);
  box-shadow: 0 30px 90px rgba(31, 47, 73, 0.08);
  overflow: hidden;
}

.column-detail-hero {
  background:
    radial-gradient(circle at 88% 8%, rgba(122, 170, 235, 0.27), transparent 34%),
    linear-gradient(140deg, #172b48, #244f85 66%, #315fa8);
  color: #fff;
  padding: clamp(42px, 7vw, 88px);
  position: relative;
}

.column-detail-index {
  color: rgba(255, 255, 255, 0.07);
  font-size: clamp(100px, 18vw, 220px);
  font-weight: 700;
  letter-spacing: -0.08em;
  line-height: 0.72;
  pointer-events: none;
  position: absolute;
  right: clamp(18px, 4vw, 54px);
  top: clamp(42px, 6vw, 72px);
}

.column-detail-hero .column-meta {
  margin-bottom: clamp(28px, 4vw, 48px);
  padding-right: 90px;
  position: relative;
  z-index: 1;
}

.column-detail-hero .column-meta span {
  background: rgba(255, 255, 255, 0.11);
  color: #d9eaff;
}

.column-detail-hero .column-meta time,
.column-detail-hero .column-meta small {
  color: rgba(255, 255, 255, 0.68);
}

.column-detail-hero .column-meta small {
  border-color: rgba(255, 255, 255, 0.19);
}

.column-detail-hero h1 {
  font-family: var(--serif);
  font-size: clamp(34px, 5vw, 64px);
  font-weight: 500;
  letter-spacing: 0.025em;
  line-height: 1.55;
  max-width: 900px;
  position: relative;
  z-index: 1;
}

.column-detail-hero > p {
  color: rgba(255, 255, 255, 0.76);
  font-size: clamp(13px, 1.4vw, 16px);
  line-height: 2.15;
  margin-top: 28px;
  max-width: 810px;
  position: relative;
  z-index: 1;
}

.column-detail-copy {
  border: 0;
  margin: 0 auto;
  max-width: 860px;
  padding: clamp(46px, 7vw, 86px) clamp(24px, 6vw, 72px);
}

.column-detail-copy p,
.column-detail-copy h3,
.column-detail-copy blockquote {
  max-width: none;
}

.column-detail-copy p {
  color: #4e5967;
  font-size: clamp(14px, 1.45vw, 16px);
  line-height: 2.3;
}

.column-detail-copy p + p,
.column-detail-copy blockquote + p {
  margin-top: 24px;
}

.column-detail-copy h3 {
  color: #25242a;
  font-family: var(--serif);
  font-size: clamp(21px, 2.5vw, 30px);
  font-weight: 500;
  line-height: 1.7;
  margin: 52px 0 20px;
}

.column-detail-copy blockquote {
  border-left: 3px solid #d8b56c;
  color: #315fa8;
  font-family: var(--serif);
  font-size: clamp(18px, 2.2vw, 26px);
  line-height: 1.9;
  margin: 44px 0;
  padding: 7px 0 7px 26px;
}

.column-detail-copy .column-signature {
  color: #25242a;
  font-size: 13px;
  letter-spacing: 0.16em;
  margin-top: 42px;
  text-align: right;
}

.column-action-panel {
  background:
    radial-gradient(circle at 92% 8%, rgba(216, 181, 108, 0.2), transparent 34%),
    linear-gradient(135deg, #172b48, #244f85 68%, #315fa8);
  color: #fff;
  display: grid;
  gap: clamp(28px, 5vw, 64px);
  grid-template-columns: minmax(240px, 0.72fr) minmax(360px, 1.28fr);
  margin-top: 22px;
  padding: clamp(32px, 5vw, 58px);
}

.column-action-copy small {
  color: #d8b56c;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.2em;
}

.column-action-copy h2 {
  font-family: var(--serif);
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 500;
  line-height: 1.55;
  margin: 15px 0 13px;
}

.column-action-copy p {
  color: rgba(255, 255, 255, 0.67);
  font-size: 12px;
  line-height: 1.9;
  max-width: 390px;
}

.column-action-links {
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  display: grid;
}

.column-action-links a {
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  display: flex;
  font-size: 11px;
  font-weight: 700;
  gap: 20px;
  justify-content: space-between;
  letter-spacing: 0.08em;
  min-height: 57px;
  padding: 0 4px;
  transition: color 180ms ease, padding 180ms ease;
}

.column-action-links a:hover,
.column-action-links a:focus-visible {
  color: #d8b56c;
  padding-left: 9px;
}

.column-action-links i {
  color: #d8b56c;
  font-style: normal;
}

.column-related {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 22px;
}

.column-related-link {
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(49, 95, 168, 0.13);
  display: grid;
  gap: 9px;
  grid-template-columns: minmax(0, 1fr) auto;
  min-height: 132px;
  padding: 25px;
  transition: background 180ms ease, transform 180ms ease;
}

.column-related-link:hover,
.column-related-link:focus-visible {
  background: #fff;
  transform: translateY(-2px);
}

.column-related-link small {
  color: #315fa8;
  font-size: 9px;
  font-weight: 700;
  grid-column: 1 / -1;
  letter-spacing: 0.16em;
}

.column-related-link span {
  font-family: var(--serif);
  font-size: clamp(14px, 1.6vw, 18px);
  line-height: 1.7;
}

.column-related-link i {
  align-self: center;
  color: #315fa8;
  font-size: 18px;
  font-style: normal;
}

.column-detail-archive-link {
  align-items: center;
  border-bottom: 1px solid rgba(49, 95, 168, 0.2);
  color: #315fa8;
  display: flex;
  font-size: 11px;
  font-weight: 700;
  justify-content: space-between;
  letter-spacing: 0.13em;
  margin-top: 24px;
  min-height: 58px;
}

.column-missing {
  border-left: 3px solid #315fa8;
  margin: 14vh auto;
  max-width: 760px;
  padding: clamp(32px, 7vw, 72px);
}

.column-missing small { color: #315fa8; font-weight: 700; letter-spacing: 0.18em; }
.column-missing h1 { font-family: var(--serif); font-size: clamp(34px, 7vw, 64px); font-weight: 500; line-height: 1.45; margin: 22px 0; }
.column-missing p { color: #616a77; line-height: 1.9; }
.column-missing a { border: 1px solid rgba(49, 95, 168, 0.3); color: #315fa8; display: inline-flex; font-size: 11px; font-weight: 700; gap: 20px; margin-top: 30px; padding: 17px 20px; }

@media (max-width: 700px) {
  .column-detail-main { padding: 38px 18px 76px; }
  .column-detail-main .column-breadcrumb { gap: 8px; margin-bottom: 30px; }
  .column-detail-hero { padding: 34px 23px 39px; }
  .column-detail-index { font-size: 90px; right: 16px; top: 42px; }
  .column-detail-hero .column-meta { gap: 8px 10px; margin-bottom: 29px; padding-right: 28px; }
  .column-detail-hero .column-meta small { border-left: 0; padding-left: 0; }
  .column-detail-hero h1 { font-size: clamp(27px, 8.4vw, 36px); line-height: 1.6; }
  .column-detail-hero > p { font-size: 12px; line-height: 2; margin-top: 20px; }
  .column-detail-copy { padding: 38px 23px 46px; }
  .column-detail-copy p { font-size: 13.5px; line-height: 2.2; }
  .column-detail-copy h3 { margin-top: 42px; }
  .column-detail-copy blockquote { margin: 34px 0; padding-left: 18px; }
  .column-action-panel { gap: 27px; grid-template-columns: 1fr; padding: 31px 23px; }
  .column-action-copy h2 { font-size: 25px; }
  .column-action-copy p { font-size: 11px; }
  .column-action-links a { font-size: 10px; line-height: 1.6; min-height: 56px; }
  .column-related { grid-template-columns: 1fr; }
  .column-related-spacer { display: none; }
}