.quality_view {
  margin-top: 30px;
  padding-bottom: 100px;
}
.quality_view_nav {
  padding: 25px 0 24px 20px;
  font-size: 14px;
  font-family: Arial, sans-serif, Source Han Sans SC;
  font-weight: 400;
  color: #8A9197;
}
.quality_view_nav span {
  font-size: 14px;
  font-family: Arial, sans-serif, Source Han Sans SC;
  font-weight: bold;
  color: #292A2B;
}
.quality_view_content {
  display: flex;
}
.quality_view_content_list {
    padding-top: 30px;
    width: 490px;
    min-width: 210px;
    height: auto;
    min-height: 800px;
    background: #FFFFFF;
    box-shadow: 0 3px 10px 1px rgba(52, 74, 109, 0.16);
    border-radius: 8px;
    opacity: 1;
}
.quality_view_content_list_item {
  height: 24px;
    font-size: 12px;
  font-family: Arial, sans-serif, Source Han Sans SC;
  font-weight: 500;
  color: #292A2B;
  line-height: 24px;
  margin-bottom: 22px;
  padding-left: 30px;
  position: relative;
  display: block;
  cursor: pointer;
  text-decoration: none;
}
.quality_view_content_list_item:hover,
.quality_view_content_list_item.active {
    font-size: 12px;
  font-family: Arial, sans-serif, Source Han Sans SC;
  font-weight: bold;
  color: #DE3E46 !important;
  text-decoration: none;
}
.quality_view_content_list_item.active::before {
  content: '';
  width: 4px;
  height: 20px;
  background: #DE3E46;
  position: absolute;
  left: 0;
  top: 2px;
}


.quality_view_content_main {
    width: auto;
    height: auto;
  background: #FFFFFF;
  border-radius: 8px;
  opacity: 1;
    padding: 72px 100px 0 100px;
    margin-left: 22px;
}
.quality_view_content_main_title {
  height: 61px;
    font-size: 20px;
  font-family: Arial, sans-serif, Source Han Sans SC;
  font-weight: bold;
  color: #292A2B;
  line-height: 61px;
  text-align: center;
  margin-bottom: 43px;
}
.quality_view_content_main_subtitle {
  height: 29px;
    font-size: 18px;
  font-family: Arial, sans-serif, Source Han Sans SC;
  font-weight: 400;
  color: #DE3E46;
  line-height: 29px;
}
.quality_view_content_main_subtitle span {
  color: #53575A;
}
.quality_view_content_main_headtitle {
  position: relative;
  padding-left: 30px;
  font-size: 20px;
  font-family: Arial, sans-serif, Source Han Sans SC;
  font-weight: bold;
  color: #292A2B;
  margin-bottom: 30px;
}
.quality_view_content_main_headtitle::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  border-radius: 100px;
  background: #ff0000;
}
.quality_view_content_main_desc {
    text-indent: 30px;
    font-size: 14px;
  font-family: Arial, sans-serif, Source Han Sans SC;
  font-weight: 400;
  color: #53575A;
  margin-bottom: 40px;
}
.quality_view_content_main_img {
  height: 60px;
  margin-right: 11px;
}
.quality_view_section {
  padding-bottom: 41px;
  border-bottom: 1px solid #C7CDD2;
  margin-bottom: 60px;
}
.quality_view_content_main_tip {
  height: 32px;
  font-size: 20px;
  font-family: Arial, sans-serif, Source Han Sans SC;
  font-weight: 400;
  color: #38D69B;
  line-height: 32px;
}
.img {
  width: auto;
  height: 420px;
  border-radius: 8px;
}