/* 工具卡片的外层容器 */
.tools-container {
  display: flex;
  flex-wrap: wrap;           /* 自动换行 */
  justify-content: flex-start; /* 从左到右排列 */
  gap: 20px;                 /* 卡片间距 */
  padding: 20px;
  box-sizing: border-box;
}

/* 每一组标题区 */
.section-title {
  text-align: center;
  margin: 40px 0 20px;
}

.section-en {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 1px;
  color: #111827;
  font-family: "Poppins", "Noto Sans SC", sans-serif;
}

.section-desc {
  font-size: 16px;
  color: #6b7280;
  margin-top: 6px;
  font-style: italic;
}

/* 单个矩形卡片 */
.tool-card {
  flex: 0 0 260px; /* 每个卡片固定宽度，自动换行 */
  height: 180px;
  background: linear-gradient(145deg, #ffffff, #f3f4f6);
  border-radius: 16px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.tool-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.12);
}

.tool-icon {
  width: 40px;
  height: 40px;
  color: #000000;
  margin-bottom: 10px;
}

.tool-title {
  font-size: 18px;
  font-weight: 600;
  color: #111827;
  margin-bottom: 6px;
}

.tool-desc {
  font-size: 14px;
  color: #6b7280;
  padding: 0 12px;
  line-height: 1.4;
}