/* 公司介绍 */
.about {
  width: 1280px;
  height: auto;
  margin: 10px auto 10px;
  background: #ffffff;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  padding: 10px 10px;
  box-sizing: border-box;
}
.about h1 {
  text-align: center;
  margin-top: 0;
  padding-top: 0;
}
.about p {
  line-height: 2;
  text-indent: 2em;
  font-size: 16px;
  color: #444;
  line-height: 2;
  text-align: justify;
  margin: 0 0 10px;
}
.about h1,
.all-series h1,
.contact-section h1 {
  font-size: 32px;
  font-weight: 600;
  color: #111;
  position: relative;
  margin-bottom: 10px;
  margin-top: 0;
}
.about h1::after,
.all-series h1::after,
.contact-section h1::after {
  content: "";
  width: 70px;
  height: 3px;
  background-color: #0066cc;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: -8px;
  border-radius: 2px;
}

/* 联系我们：和企业概况完全同风格，精致排版 */
.contact-section {
  margin: 10px auto 10px;
}
.contact-content {
  max-width: 700px;
  margin: 0 auto;
}
.contact-row {
  display: flex;
  align-items: center;
  line-height: 2.2;
  font-size: 16px;
  color: #444;
}
.contact-row .label {
  flex: 0 0 120px;
  text-align: right;
  font-weight: 500;
  color: #111;
  padding-right: 16px;
}
.contact-row .value {
  flex: 1;
  text-align: left;
}
.contact-row .value a {
  color: #0066cc;
  text-decoration: none;
}
.contact-row .value a:hover {
  text-decoration: underline;
}

/* 设备分类（浅色） */
.category-section {
  background-color: #fafbfc !important;
  padding: 10px 0 10px !important;
}

/* 产品介绍 */
.all-series {
  padding: 10px 0;
  margin: 0;
  overflow: hidden;
}
.all-series h1 {
  text-align: center;
  padding-top: 0;
  margin: 0 0 10px;
}
.series {
  width: 1280px;
  margin: 1px auto;
  background: #fff;
  border-radius: 12px;
  padding: 1px 10px;
  box-shadow: 0 3px 15px rgba(0, 0, 0, 0.04);
  transition: all 0.3s ease;
  box-sizing: border-box;
  overflow: hidden;
}
.series .series-header h2 {
  float: left;
  margin: 0;
  padding: 1px 0;
  font-size: 20px;
  font-weight: 600;
  color: #004c99;
  width: 100%;
  padding-bottom: 3px;
  border-bottom: 1px solid #eaecef;
}
.series-products {
  list-style: none;
  padding: 0;
  clear: both;
  margin-top: 18px;
  margin-bottom: 10px;
}
.series-products li {
  height: auto;
  margin-bottom: 5px;
  padding: 5px 0;
  font-size: 15px;
  cursor: pointer;
  transition: padding-left 0.2s;
}
.series-products img {
  margin-right: 8px;
  padding-bottom: 2px;
  filter: brightness(0) saturate(100%) invert(30%) sepia(90%) saturate(1000%) hue-rotate(185deg);
}
.series:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 24px rgba(0, 102, 204, 0.08);
}
.series-products li:hover {
  padding-left: 8px;
}
.series-products a {
  color: #333;
  text-decoration: none;
  transition: color 0.2s;
}
.series-products a:hover {
  color: #0066cc;
  font-weight: 500;
}
/* 文档下载按钮样式 */
.download-btn {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 220px;
  height: 120px;
  background: #ffffff;
  border: 1px solid #e0e6ed;
  border-radius: 12px;
  text-decoration: none;
  color: #333;
  font-size: 16px;
  font-weight: 500;
  box-shadow: 0 3px 10px rgba(0,0,0,0.04);
  transition: all 0.3s ease;
}
.download-btn:hover {
  transform: translateY(-4px);
  border-color: #0066cc;
  color: #0066cc;
  box-shadow: 0 6px 18px rgba(0, 102, 204, 0.08);
}
.download-btn span {
  margin-bottom: 6px;
}
.download-btn small {
  font-size: 12px;
  color: #888;
}