body {
  display: flex;
  overflow-x: hidden;
  margin: 0px;
}

#main {
  margin: auto;
  width: auto;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  position: relative;
  margin-left: 360px;
  max-width: 289.37px;
  height: 32px;
}

header nav {
  height: 72px;
  position: relative;
  right: 360px;
  display: flex;
  gap: 16px;
  flex-grow: 1;
  justify-content: flex-end;
  font-family: 'Microsoft YaHei', '微软雅黑';
  font-size: 16px;
  font-weight: bold
}

header nav a {
  text-decoration: none;
  color: rgba(0, 0, 0, 0.6);
  /* padding: 10px 18px 0 18px; */
}

.ZGbutton {
  font-family: "Montserrat", sans-serif;
  font-size: 16px;
  color: rgba(0, 0, 0, 0.6);
  font-family: inherit;
  font-weight: bolder;
  cursor: pointer;
  position: relative;
  top: 26px;
  border: none;
  background: none;
  text-transform: uppercase;
  transition-timing-function: cubic-bezier(0.25, 0.8, 0.25, 1);
  transition-duration: 400ms;
  transition-property: color;
}

.ZGbutton:focus,
.ZGbutton:hover {
  color: #040000;
}

.ZGbutton:focus:after,
.ZGbutton:hover:after {
  width: 64px;
  left: 9%;
}

button:after {
  content: "";
  pointer-events: none;
  bottom: -8px;
  left: 50%;
  position: absolute;
  width: 0%;
  height: 6px;
  background-image: linear-gradient(to bottom right, #3DA8CE, #0359A0);
  transition-timing-function: cubic-bezier(0.25, 0.8, 0.25, 1);
  transition-duration: 400ms;
  transition-property: width, left;
}

/* @keyframes scaleUp {
  0% {
    transform: scale(1);
  }

  50% {
    transform: scale(0.95);
  }

  100% {
    transform: scale(1);
  }
} */

/* 下拉菜单 - start */

/* 下拉菜单 - 关于我们 */
.NBdropdown .dropdown-content {
  width: 1924px;
  height: 0px;
  background: #FAFAFA;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  left: 672px;
  top: 72px;
  min-width: 90px;
  transition: height ease 0.5s;
  z-index: 0;
}

.NBdropdown :hover .dropdown-content {
  position: absolute;
  top: 72px;
  width: 1924px;
  height: 300px;
}

/* 下拉菜单 - 关于我们（文字） */
.NBdropdown .ZGwb {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 6px;

  position: absolute;
  top: 72px;
  right: 372px;
  color: rgba(0, 0, 0, 0.6);
  font-size: 16px;
  font-weight: normal;
  text-align: center;
  text-decoration: none;
  line-height: 22px;
  opacity: 0;
  transition: opacity ease 0.5s;
  cursor: pointer;
  z-index: 1;

}

.NBdropdown :hover .ZGwb {
  opacity: 1;
}

/* 下拉菜单 - 解决方案 */
.NBservice .service-content {
  width: 1924px;
  height: 0px;
  background: #FAFAFA;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  left: 672px;
  top: 72px;
  min-width: 90px;
  transition: height ease 0.5s;
}

.NBservice :hover .service-content {
  position: absolute;
  top: 72px;
  width: 1924px;
  height: 300px;
}

/* 下拉菜单 - 解决方案（文字） */
.NBservice .ZGwb {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 6px;

  position: absolute;
  top: 72px;
  right: 280px;
  color: rgba(0, 0, 0, 0.6);
  font-size: 16px;
  font-weight: normal;
  text-align: center;
  text-decoration: none;
  line-height: 22px;
  opacity: 0;
  transition: opacity ease 0.5s;
  cursor: pointer;
}

.NBservice :hover .ZGwb {
  opacity: 1;
}

#IDZGwb :hover {
  font-weight: bold;
  color: #040000;
}

/* 下拉菜单 - end */

/* 副标题菜单 - start */
.navbar nav {
  height: 52px;
  position: relative;
  right: 360px;
  display: flex;
  gap: 60px;
  flex-grow: 1;
  justify-content: flex-start;
  font-family: '阿里汉仪智能黑体';
  font-size: 16px;
}

header nav a {
  text-decoration: none;
  color: rgba(0, 0, 0, 0.6);
}

.FBTbutton {
  font-family: "Montserrat", sans-serif;
  font-size: 16px;
  color: rgba(0, 0, 0, 0.6);
  font-family: inherit;
  cursor: pointer;
  position: relative;
  border: none;
  background: none;
  text-transform: uppercase;
  transition-timing-function: cubic-bezier(0.25, 0.8, 0.25, 1);
  transition-duration: 400ms;
  transition-property: color;

  padding: 0px;
}

.FBTbutton :hover {
  color: #040000;
}

/* .FBTline {
  position: absolute;
  top: 35px;
  left: -8px;
  width: 90px;
  height: 3px;
  background-image: linear-gradient(to right, #3DA8CE, #0359A0);
  display: none;

}

.FBTline :hover {
  display: block;

} */

/* 副标题菜单 - end */

/* 副标题下拉菜单 - start */
.NBfbt .fbt-content {
  width: 100%;
  height: 52px;
  /* height: 0px; */
  background: #F4F4F4;
  position: absolute;
  left: -358px;
  top: 52px;
  min-width: 90px;
  transition: height ease 0.5s;
  z-index: 0;

  display: none;
}

.NBfbt:hover .fbt-content {
  position: absolute;
  top: 52px;
  width: 100%;
  height: 52px;

  display: block;
}

/* 副标题下拉菜单 - end */

/* 副标题下拉菜单（文字） - start */
.NBfbt .FBTwb {
  display: flex;
  /* flex-direction: row;
  gap: 60px; */
  margin-top: 17px;
  position: absolute;
  left: -38px;
  color: rgba(0, 0, 0, 0.6);
  font-size: 16px;
  font-weight: normal;
  text-align: center;
  text-decoration: none;
  line-height: 22px;
  /* opacity: 0; */
  transition: opacity ease 0.5s;
  cursor: pointer;
  z-index: 1;

  display: none;
}

.NBfbt :hover .FBTwb {
  /* opacity: 1; */
  display: block;
  font-weight: bold;
}

.NBfbt .FBTwb a {
  /* font-family: "Montserrat", sans-serif; */
  margin-left: 40px;
  font-weight: normal;
  font-size: 14px;
}

#IDFBTwb :hover {
  color: #040000;
}

/* 副标题下拉菜单（文字） - end */

.navbar nav {
  position: relative;
  left: 360px;
  /* left: 50%;
  transform: translateX(-50%); */
  display: flex;
  width: 1920px;
  height: 52px;
  flex-grow: 1;
  /* 允许nav占据剩余空间 */
  justify-content: flex-start;
  /* 子元素向末尾对齐 */
  /* text-align: center; */
  /* 水平居中文本 */
  line-height: 51px;
  font-style: normal;
  padding: 0px 0px 0px 0px;

}

.navbar nav a {
  font-weight: 400;
  font-size: 20px;
  text-decoration: none;
  color: inherit;
  /* 继承父元素的颜色 */
  font-size: 16px;
  /* margin-left: 60px; */
  font-weight: 400;
  color: rgba(0, 0, 0, 0.6);
  font-family: '阿里汉仪智能黑体';
}

.line {
  position: absolute;
  left: -14px;
  bottom: 0;
  height: 3px;
  width: 90px;
  background-image: linear-gradient(to right, #3DA8CE, #0359A0);
  transition: all .5s;
}

/* 滑动条位置 */
.navbar nav .ppp:nth-child(1).active~.line {
  transform: translatex(0px);
}

.navbar nav .ppp:nth-child(2).active~.line {
  transform: translatex(125px);
}

.navbar nav .ppp:nth-child(3).active~.line {
  transform: translatex(249px);
}

.navbar nav .ppp:nth-child(4).active~.line {
  transform: translatex(373px);
}



.TTline {
  /* position: absolute;
  top: 52px; */
  width: 100%;
  height: 1px;
  background: #F4F4F4;
  /* z-index: 100 */
}

.sticky {
  position: fixed;
  /* 当导航栏需要停靠在顶部时，使用固定定位 */
  top: 0;
  left: 0;
  width: 100%;
  /* 根据需要设置宽度 */
  z-index: 1000;
  /* 确保导航栏在其他内容之上 */
  background-color: #fff;
  /* 可选：设置背景色，防止内容被覆盖 */
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
  /* 可选：添加阴影效果 */
}

/* 回到顶部 */
/* .return {
  position: fixed;
  right: 60px;
  bottom: 150px;
  display: none;
} */
.buttonHDDB {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: #383838;
  border: none;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0px 0px 0px 2px #F4F4F4;
  cursor: pointer;
  transition-duration: 0.4s;
  overflow: hidden;
  position: fixed;
  top: 80%;
  right: 100px;
  z-index: 1000;
}

.svgIcon {
  width: 12px;
  transition-duration: 0.4s;
}

.svgIcon path {
  fill: #ffffff;
}

.buttonHDDB:hover {
  width: 140px;
  border-radius: 50px;
  transition-duration: 0.4s;
  background-image: linear-gradient(to right, #3DA8CE, #0359A0);
  align-items: center;
}

.buttonHDDB:hover .svgIcon {
  /* width: 20px; */
  transition-duration: 0.4s;
  transform: translateY(-200%);
}

.buttonHDDB::before {
  position: absolute;
  bottom: -20px;
  content: "Back to Top";
  color: #ffffff;
  /* transition-duration: 0.4s; */
  font-size: 0px;
}

.buttonHDDB:hover::before {
  font-size: 13px;
  opacity: 1;
  bottom: unset;
  /* transform: translateY(-30px); */
  transition-duration: 0.4s;
}

/* 页尾 */
.group_4 {
  color: #ffffff;
  z-index: 0;
}

.YWtextDS {
  box-shadow: 0px -3px 6px 0px rgba(0, 0, 0, 0.2);
  background-image: linear-gradient(90deg,
      rgba(61, 168, 206, 1) 0,
      rgba(3, 89, 160, 1) 100%);
  height: 462px;
  margin-top: -1px;
  width: 1920px;
  justify-content: flex-center;
  z-index: 0;
  position: relative;
}

.YWtext span {
  line-height: 24px;
  font-size: 18px;
  margin-bottom: 4px;
  font-weight: bold;
}

.YWtext a {
  text-decoration: none;
  font-size: 14px;
  color: #ffffff;
}

.YWtext a:hover {
  font-weight: bold;
  /* color: #040000; */
}

/* .YWtextXWZX {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  position: absolute;
  left: 368px;
  top: 24px;
  z-index: 1;
} */

.YWtextGYWM {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  position: absolute;
  /* left: 520px; */
  left: 368px;
  top: 24px;
  z-index: 1;
}

.YWtextJJFA {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  position: absolute;
  /* left: 672px; */
  left: 520px;
  top: 24px;
  z-index: 1;
}

.YWtextZBCG {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  position: absolute;
  /* left: 824px; */
  left: 672px;
  top: 24px;
  z-index: 1;
}

.YWtextJRWM {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  position: absolute;
  /* left: 824px; */
  left: 824px;
  top: 24px;
  z-index: 1;
}

.YWtextLXWM {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  position: absolute;
  left: 976px;
  top: 24px;
  z-index: 1;
}

.FGline {
  width: 1200px;
  height: 1px;
  background: #ffffff;
  position: absolute;
  left: 360px;
  top: 320px;
}

.DZDH {
  font-size: 14px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: absolute;
  left: 360px;
  top: 339px;
}

.DZ {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 4px;
}

.DZimg {
  width: 22px;
  height: 22px;
}

.DH {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 4px;
}

.DHimg {
  width: 22px;
  height: 22px;
}

.XJJewm {
  position: absolute;
  right: 454px;
  bottom: 20px;
}

.XJJlogo {
  position: absolute;
  right: 360px;
  top: 141px;
}

/* 锚点定位 - 下移 */
/* #box9,
#box10,
#box11,
#box12,
#box13,
#box14,
#box15,
#box16,
#box17,
#box18,
#box19,
#box20,
#box21,
#box21 {
  padding-top: 80px
} */