/* 通用样式 */
.gradient-container {
  width: 100%;
  min-width: 1240px;
  min-height: 490px;
  display: flex;
  justify-content: center;
  background: url(../images/core/core_bg.jpeg) no-repeat top center;
  background-size: cover;

}
.core_center {
  width: 1240px;
  height: 100%;
  display: flex;

  padding: 0 0 40px 300px;
}
.core_left {
  width: 260px;
  position: fixed;
  top: 100px;
  left: calc(50vw - 600px);
}
.menu_lu {
  width: 290px;
}
.menu_li {
  height: 49px;
  display: flex;
  align-items: center;
  margin: 8px 0;
  cursor: pointer;
}
.menu_li img {
  margin-top: 4px;
}
.menu_li span {
  color: #666666;
  font-weight: 600;
  font-size: 16px;
  line-height: 30px;
  margin-left: 10px;
}
.menu_li .active {
  color: #3573ef;
}
.core_right {
  flex: 1;
  border-left: 1px solid #dedede;
}
.article_div_img {
}
.article_div_img1 {
  margin: 9px 27px 0 0;
}
.article_div_img2 {
  margin: 24px 5px 0 0;
}
.article_div_img3 {
  margin: 20px 13px 0 0;
}
.article_div {
  width: 930px;
  height: 290px;
  background: #d7e8ff;
  display: flex;
}
.article_text {
  flex: 1;
}
.text_desc {
  margin-top: 19px;
}
.text_desc2 {
  margin-top: 8px;
}
.article_title {
  font-family: Source Han Sans CN;
  font-weight: 500;
  font-style: Medium;
  font-size: 30px;
  leading-trim: NONE;
  line-height: 100%;
  letter-spacing: 0%;
  margin: 62px 0 0 44px;
}
.article_content {
  font-family: Source Han Sans CN;
  font-weight: 400;
  font-style: Regular;
  font-size: 14px;
  leading-trim: NONE;
  line-height: 24px;
  letter-spacing: 0%;
  width: 375px;
  margin: 20px 0 0 44px;
}

.article_center {
  padding: 44px;
}
.article_desc {
}
.article_center_title {
  font-family: Source Han Sans CN;
  font-weight: 600;
  font-style: Medium;
  font-size: 20px;
  leading-trim: NONE;
  line-height: 100%;
  letter-spacing: 0%;
}
.list-container {
  width: 100%;
  margin-top: 19px;
}

.custom-list {
  list-style-type: none;
  padding: 0;
  margin: 0;
}

.custom-list li {
  position: relative;
  padding-left: 17px;
  line-height: 25px;
  color: #333;
  margin-top: 10px;
}

.custom-list li:before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 6px;
  background-color: #3573ef;
  border-radius: 50%;
}

.list_desc {
  font-family: Source Han Sans CN;
  font-weight: 400;
  font-style: Regular;
  font-size: 14px;
  leading-trim: NONE;
  letter-spacing: 0%;
}
.article_label {
  margin-top: 40px;
}
.article_label_content {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-gap: 20px;
  margin-top: 33px;
}
.article_label_child {
  width: 100%;
  display: flex;
}
.article_label_child img {
  margin-top: -12px;
}
.article_label_text {
  width: 100%;
}

.label_title {
  font-family: Source Han Sans CN;
  font-weight: 600;
  font-style: Medium;
  font-size: 16px;
  leading-trim: NONE;
  line-height: 100%;
  letter-spacing: 0%;
}
.label_desc {
  font-family: Source Han Sans CN;
  font-weight: 400;
  font-style: Regular;
  font-size: 14px;
  leading-trim: NONE;
  line-height: 24px;
  letter-spacing: 0%;
  width: 315px;
  margin-top: 7px;
}
.label_desc ul {
  padding-left: 10px;
}
.label_desc li {
  position: relative;
  padding-left: 10px;
}
.label_desc li:before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 3px;
  height: 3px;
  background-color: #000000;
  border-radius: 50%;
}
/* banner1样式 */
.article_platform {
  margin-top: 40px;
}
.article_platform_desc {
  margin-top: 20px;
}
.article_platform_img {
  margin: 20px 0 0 0;
  border: 1px solid #d9d9d9;
  padding: 20px;
}
/* banner2样式 */
.article_secure_serial {
  font-family: Source Han Sans CN;
  font-weight: 400;
  font-style: Regular;
  font-size: 14px;
  leading-trim: NONE;
  line-height: 100%;
  letter-spacing: 0%;
  margin: 25px 0 20px;
}
.article_secure_title_xiao {
  font-family: Source Han Sans CN;
  font-weight: 500;
  font-style: Medium;
  font-size: 16px;
  leading-trim: NONE;
  line-height: 100%;
  letter-spacing: 0%;
}
.article_secure_img img {
   max-width: 800px;
}
.text_ul {
  margin-top: 8px;
  font-family: Source Han Sans CN;
  font-weight: 400;
  font-style: Regular;
  font-size: 14px;
  leading-trim: NONE;
  line-height: 25px;
  letter-spacing: 0%;
}
.text_ul ul {
  margin-top: 8px;
  padding-left: 10px;
}
.text_ul li {
  position: relative;
  padding-left: 10px;
}
.text_ul li:before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 3px;
  height: 3px;
  background-color: #000000;
  border-radius: 50%;
}
.article_fun_text {
  margin-top: 40px;
}
.article_banner4_title {
  font-family: Source Han Sans CN;
  font-weight: 600;
  font-style: Medium;
  font-size: 16px;
  leading-trim: NONE;
  line-height: 100%;
  letter-spacing: 0%;
  margin-top: 35px;
}
.article_banner4_serial {
  font-family: Source Han Sans CN;
  font-weight: 400;
  font-style: Regular;
  font-size: 14px;
  leading-trim: NONE;
  line-height: 100%;
  letter-spacing: 0%;
  margin: 10px 0 20px;
  
}
.banner4_teShu_img{
  margin-top: 10px;
}
.article_article_text{
  width: 100%;
  margin-top: 40px;
}
/* 当视口宽度小于等于1240px时，将left设置为0 */
@media (max-width: 1240px) {
  .core_left {
      left: 0;
  }
}