a {
  color: #000;
}
body {
  background: url(../img/home_bg.png) no-repeat;
  background-size: 100%;
  position: relative;
}
@media (max-width: 1680px) {
  body {
    background: url(../img/home_bg.png) no-repeat;
    background-size: 100% 100%;
    position: relative;
  }
}
.headDiv {
  width: 100%;
  height: 80px;
  position: fixed;
  top: 0px;
}
.headDiv .Sus_style {
  letter-spacing: 1px;
}
.headDiv .Sus_style:hover a {
  color: #2568F4;
}
.headDiv .Sus_style a {
  color: #5e5e5e;
}
.headDiv .Head_nav {
  width: 1200px;
  height: 100%;
  margin: auto;
}
.headDiv .Head_nav img {
  position: relative;
  top: 22px;
}
.headDiv .Head_nav .Right_Nav {
  float: right;
  height: 100%;
}
.headDiv .Head_nav .Right_Nav div {
  display: inline-block;
  height: 100%;
  padding: 0px 5px;
  font-size: 16px;
  line-height: 80px;
  margin: 0px 16px;
  position: relative;
  cursor: pointer;
}
.headDiv .Head_nav .Right_Nav div a {
  display: inline-block;
  height: 100%;
}
.headDiv .Head_nav .Right_Nav .home_txt {
  position: relative;
  font-weight: bold;
  color: #2568F4;
}
.headDiv .Head_nav .Right_Nav .home_txt span {
  position: absolute;
  bottom: 8px;
  left: 0px;
  display: inline-block;
  width: 100%;
  height: 2px;
  background-color: #2568F4;
}
.headDiv .Head_nav .Right_Nav .Download_paper {
  padding: 0px;
  margin-right: 0px;
  width: 98px;
  height: 32px;
  line-height: 32px;
  text-align: center;
  font-size: 14px;
  color: #FFFFFF;
  background: linear-gradient(270deg, #3AADFF 0%, #2568F4 100%);
  border-radius: 24px 24px 24px 24px;
}
.headDiv .Head_nav .Right_Nav .Download_paper:hover {
  background: linear-gradient(270deg, #2568F4 0%, #3AADFF 100%);
}
.headDiv .Head_nav .Right_Nav .Download_paper a {
  color: #FFFFFF;
}
.scrollCS {
  background-color: #FFFFFF;
}
.banner_div {
  width: 1200px;
  margin: auto;
  text-align: center;
  margin-top: 118px;
  font-weight: bold;
}
.banner_div .title1 {
  font-size: 56px;
  color: #333333;
  letter-spacing: 3px;
}
.banner_div .title2 {
  font-size: 68px;
  color: #333333;
  letter-spacing: 3px;
}
.banner_div .title2 span {
  color: #0A80FC;
}
.banner_div .title3 {
  font-size: 20px;
  color: #3D3D3D;
  letter-spacing: 1px;
  font-weight: 400;
}
.banner_div .title3 .special1 {
  color: #2568F4;
  font-weight: bold;
}
.banner_div .title3 .special2 {
  color: #FE5857;
  margin: 0px 8px;
  font-weight: bold;
}
.banner_div .immediately {
  width: 180px;
  height: 58px;
  font-weight: 400;
  margin: auto;
  background: #2568F4;
  border: 1px solid #FFFFFF;
  border-radius: 40px;
  font-size: 20px;
  line-height: 56px;
  margin-top: 20px;
  cursor: pointer;
  margin-bottom: 10px;
}
.banner_div .immediately:hover {
  box-shadow: 0px 4px 10px 0px #CED9FB;
  border: 1px solid #FFFFFF;
}
.banner_div .immediately a {
  display: inline-block;
  width: 100%;
  height: 100%;
  color: #FFFFFF;
}
.product_div {
  width: 1200px;
  margin: auto;
}
.product_div .Product_Int {
  display: inline-block;
  width: 280px;
  height: 116px;
  background: #FFFFFF;
  box-shadow: 0px 4px 10px 0px #DFEDFF;
  border-radius: 10px 10px 10px 10px;
  margin-top: 25px;
  padding: 1px;
  cursor: pointer;
}
.product_div .Product_Int a {
  display: inline-block;
  width: 100%;
  height: 100%;
}
.product_div .Product_Int img {
  width: 48px;
}
.product_div .Product_Int img {
  transition: transform 0.2s ease-in-out;
  /* 平滑的过渡效果 */
}
.product_div .Product_Int:hover {
  box-shadow: 0px 4px 10px 0px rgba(138, 176, 255, 0.5);
}
.product_div .Product_Int:hover img {
  transform: scale(1.1);
  /* 放大10% */
}
.product_div .Product_Int:hover p {
  color: #2568F4;
}
.product_div .Pro_spacing {
  margin-left: 23px;
}
.product_div .Long_essay {
  text-align: right;
}
.product_div .Long_essay span {
  display: inline-block;
  width: 40px;
  height: 20px;
  background: #ECF6FF;
  border-radius: 0px 10px 0px 10px;
  font-weight: 500;
  font-size: 12px;
  color: #1E99FF;
  line-height: 20px;
  text-align: center;
}
.product_div .image_text {
  width: 100%;
  padding: 0px 40px 0px 20px;
}
.product_div .image_text div {
  float: right;
}
.product_div .image_text p {
  font-weight: bold;
  font-size: 16px;
  letter-spacing: 1px;
  color: #333333;
}
.product_div .image_text span {
  display: inline-block;
  margin-top: 6px;
  width: 155px;
  font-weight: 400;
  font-size: 12px;
  color: #6B7280;
  line-height: 18px;
  letter-spacing: 1px;
}
.Record_number {
  margin-top: 40px;
  text-align: center;
  font-size: 12px;
  color: #6B7280;
  margin-bottom: 14px;
}