.detail-knowledge {
  position: relative;
  padding: clamp(68px, 8vw, 108px) 0;
  overflow: hidden;
  color: #f5f4ef;
  background:
    radial-gradient(circle at 82% 0%, rgba(35, 73, 61, 0.2), transparent 34%),
    linear-gradient(135deg, #111518 0%, #0c0f12 100%);
  border-top: 1px solid rgba(210, 187, 124, 0.17);
  border-bottom: 1px solid rgba(210, 187, 124, 0.13);
}

.detail-knowledge-head {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(320px, 1.2fr);
  gap: clamp(32px, 7vw, 96px);
  align-items: end;
  margin-bottom: clamp(38px, 5vw, 64px);
}

.detail-knowledge .eyebrow { color: #d5bd7b; }

.detail-knowledge h2 {
  max-width: 720px;
  margin: 12px 0 0;
  color: #fff;
  font-size: clamp(2rem, 3.4vw, 3.5rem);
  line-height: 1.03;
  letter-spacing: -0.045em;
}

.detail-knowledge-intro {
  max-width: 650px;
  margin: 0;
  color: rgba(255, 255, 255, 0.66);
  font-size: 1.02rem;
  line-height: 1.75;
}

.detail-knowledge-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}

.detail-knowledge-card {
  position: relative;
  display: flex;
  min-height: 230px;
  padding: 26px 26px 24px;
  flex-direction: column;
  color: inherit;
  border-right: 1px solid rgba(255, 255, 255, 0.12);
  text-decoration: none;
  transition: background-color 180ms ease, transform 180ms ease;
}

.detail-knowledge-card:last-child { border-right: 0; }

.detail-knowledge-card::before {
  position: absolute;
  top: -1px;
  left: 0;
  width: 38px;
  height: 2px;
  content: "";
  background: #d5bd7b;
}

.detail-knowledge-card small {
  margin-bottom: 28px;
  color: rgba(213, 189, 123, 0.82);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.detail-knowledge-card strong {
  color: #fff;
  font-size: clamp(1.05rem, 1.35vw, 1.28rem);
  line-height: 1.22;
}

.detail-knowledge-card p {
  margin: 12px 0 24px;
  color: rgba(255, 255, 255, 0.58);
  font-size: 0.88rem;
  line-height: 1.6;
}

.detail-knowledge-card span {
  margin-top: auto;
  color: #d5bd7b;
  font-size: 0.8rem;
  font-weight: 750;
}

.detail-knowledge-card:hover,
.detail-knowledge-card:focus-visible {
  background: rgba(35, 73, 61, 0.2);
  transform: translateY(-2px);
}

.detail-knowledge-card:focus-visible {
  outline: 2px solid #d5bd7b;
  outline-offset: 3px;
}

@media (max-width: 980px) {
  .detail-knowledge-head { grid-template-columns: 1fr; }
  .detail-knowledge-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .detail-knowledge-card:nth-child(2) { border-right: 0; }
  .detail-knowledge-card:nth-child(n + 3) { border-top: 1px solid rgba(255, 255, 255, 0.12); }
}

@media (max-width: 620px) {
  .detail-knowledge-grid { grid-template-columns: 1fr; }
  .detail-knowledge-card {
    min-height: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    border-right: 0;
  }
  .detail-knowledge-card:first-child { border-top: 0; }
}