/* ========== 研究中心页面布局 ========== */
.institution .section {
  margin-bottom: 32px;
}

.institution .section:last-child {
  margin-bottom: 0;
}

.institution .section-title {
  font-size: 20px;
  font-weight: 600;
  margin: 0 0 20px 0;
  color: var(--text-color);
}

.institution .card {
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 28px 32px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.institution .card h2 {
  font-size: 20px;
  font-weight: 600;
  margin: 0 0 16px 0;
  color: var(--text-color);
}

/* ========== 研究中心职责概述 ========== */
.institution .responsibility-overview {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px 24px;
}

.institution .responsibility-overview li {
  padding: 10px 0 10px 28px;
  position: relative;
  font-size: 15px;
  color: var(--text-color);
  line-height: 1.5;
}

.institution .responsibility-overview li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--brand-primary);
  font-weight: bold;
}

/* ========== 职责描述左右布局：左侧法规文件，右侧职责内容 ========== */
.duty-layout {
  display: flex;
  gap: 28px;
  align-items: stretch;
  margin-top: 20px;
}

.regulation-panel {
  flex-shrink: 0;
  width: 260px;
}

.regulation-doc {
  position: sticky;
  top: 24px;
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  transition: all 0.25s ease;
}

.regulation-doc:hover {
  border-color: var(--brand-primary);
  box-shadow: 0 4px 16px rgba(14, 165, 233, 0.15);
}

.regulation-doc img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 3/4;
}

.regulation-doc-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 32px 24px;
  min-height: 200px;
  background: linear-gradient(135deg, rgba(14, 165, 233, 0.06) 0%, rgba(14, 165, 233, 0.02) 100%);
  border-bottom: 3px solid var(--brand-primary);
}

.regulation-icon {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.8;
}

.regulation-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-color);
  text-align: center;
  line-height: 1.5;
}

.duty-content {
  flex: 1;
  min-width: 0;
}

.duty-summary-card {
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 28px 32px;
  border-left: 4px solid var(--brand-primary);
  transition: all 0.25s ease;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.duty-summary-card:hover {
  border-color: var(--brand-primary);
  box-shadow: 0 4px 12px rgba(14, 165, 233, 0.12);
}

.duty-summary-card p {
  font-size: 14px;
  color: var(--text-color);
  line-height: 1.65;
  margin: 0 0 14px 0;
}

.duty-summary-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.duty-summary-card li {
  padding: 6px 0 6px 20px;
  position: relative;
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.6;
}

.duty-summary-card li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--brand-primary);
  font-weight: bold;
}

/* ========== 风险管理策略卡片 ========== */
.institution .main-card {
  padding: 32px 36px;
}

.strategy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 16px;
}

.strategy-grid--2 {
  grid-template-columns: repeat(2, 1fr);
}

.strategy-card {
  background: var(--white);
  border: 1px solid var(--border-color);
  padding: 24px;
  border-radius: 10px;
  text-align: center;
  transition: all 0.25s ease;
}

.strategy-card:hover {
  border-color: var(--brand-primary);
  box-shadow: 0 4px 12px rgba(14, 165, 233, 0.1);
}

.strategy-card h4 {
  font-size: 17px;
  font-weight: 600;
  margin: 0 0 10px 0;
  color: var(--brand-primary);
}

.strategy-card p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.5;
  margin: 0;
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
  .duty-layout {
    flex-direction: column;
    gap: 20px;
  }

  .regulation-panel {
    width: 100%;
  }

  .regulation-doc {
    position: static;
    display: flex;
  }

  .regulation-doc-placeholder {
    flex-direction: row;
    gap: 20px;
    min-height: 100px;
    padding: 24px 28px;
  }

  .regulation-icon {
    margin-bottom: 0;
    font-size: 40px;
  }

  .regulation-name {
    text-align: left;
    flex: 1;
  }
}

@media (max-width: 768px) {
  .strategy-grid--2 {
    grid-template-columns: 1fr;
  }

  .regulation-doc-placeholder {
    flex-direction: column;
    min-height: 120px;
    padding: 20px 24px;
  }

  .regulation-icon {
    font-size: 36px;
  }

  .regulation-name {
    font-size: 14px;
    text-align: center;
  }

  .institution .card,
  .institution .main-card {
    padding: 20px 24px;
  }

  .institution .responsibility-overview {
    grid-template-columns: 1fr;
  }

  .strategy-grid {
    grid-template-columns: 1fr;
  }
}