* {
  box-sizing: border-box;
}

@keyframes fadeIn {
  0% {
    border-color: rgba(255, 84, 112, 0);
    /*初始状态 透明度为0*/
  }

  50% {
    border-color: rgba(255, 84, 112, 0.5);
    /*中间状态 透明度为0*/
  }

  100% {
    border-color: rgba(255, 84, 112, 1);
    /*结尾状态 透明度为1*/
  }
}

.index-page {
  width: 100%;
  height: 100vh;
  z-index: 1111;
  background: url("../assets/home-bg.jpg") center no-repeat;
  background-repeat: no-repeat;
  overflow: hidden;
  background-size: 100% 100%;
  bottom: 0;
  /* box-shadow: 0 0 0 1px #e5e5e5; */
  left: 0;
  margin: auto;
  position: absolute;
  right: 0;
  top: 0;
}

canvas {
  bottom: 0;
  /* box-shadow: 0 0 0 1px #e5e5e5; */
  left: 0;
  margin: auto;
  position: absolute;
  right: 0;
  top: 0;
  /* z-index: -1; */
}

.logo {
  height: 60px;
  width: 155px;
  margin: 8% auto 0;
  /* background: url("../assets/logo.png") center no-repeat; */
  background-size: 100% 100%;
  z-index: 222;
  position: relative;
}

.letter {
  /* width: 113px; */
  width:5.88%;
  height: 13988888888888888888px;
  /* margin-right: 10px; */
}

.letter-s {
  margin-right: 75px;
}

.letter-wrap {
  width: 100%;
  height: 139px;
  overflow: hidden;
  /* width: 1230px; */
  /* transform: translateX(-50%) translateY(-50%); */
  transform: translateY(-50%);
  position: absolute;
  top: 50%;
  /* left: 50%; */
  display: flex;
  z-index: 222;
  justify-content: center;
}

.letter img {
  /* width: 113px; */
  height: 139px;
  display: block;
  width:100%;
  /* height: 0.1287vh; */
  object-fit: contain;
}

.about-wrap {
  width: 214px;
  height: 45px;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  border-right: 5px solid #ff5470;
  animation: fadeIn 1.5s infinite alternate;
  cursor: pointer;
  z-index: 666666;
  /* border:1px solid rgba(255, 255, 255, 1); */
}

.about-wrap:hover {
  border-color: #ff5470;
  animation-play-state: paused;
}

.about {
  width: 196px;
  height: 45px;
  background-color: #2a4fff;
  border: 1px solid rgba(255, 255, 255, 1);
  border-left: none;
}

.about span {
  line-height: 45px;
  vertical-align: middle;
  height: 45px;
}

.about-en {
  display: inline-block;

  font-size: 17px;
  font-family: Microsoft YaHei, San Francisco,Arial, sans-serif;
  font-weight: 400;
  color: rgba(255, 255, 255, 1);
}

.about-dot {
  display: inline-block;

  font-size: 17px;
  font-family: Microsoft YaHei, San Francisco,Arial, sans-serif;
  font-weight: 400;
  color: rgba(255, 255, 255, 1);
}

.about-cn {
  display: inline-block;

  font-size: 17px;
  font-family: Microsoft YaHei, San Francisco,Arial, sans-serif;
  font-weight: 400;
  color: rgba(255, 255, 255, 1);
}

.case-wrap {
  cursor: pointer;
  width: 224px;
  /* height: 45px; */
  position: absolute;
  top: 50%;
  right: 0;
  transform: translateY(-50%);
  border-left: 5px solid rgba(255, 84, 112, 0);
  animation: fadeIn 1.5s infinite alternate;
  overflow: hidden;
  z-index: 666666;
}

.case-wrap:hover {
  border-color: #ff5470;
  animation-play-state: paused;
}

.case {
  margin-left: 17px;
  background-color: #2a4fff;
  border: 1px solid rgba(255, 255, 255, 1);
  border-right: none;
}

.case span {
  line-height: 45px;
  vertical-align: middle;
  height: 45px;
}

.small-letter-wrap {
  width: 100%;
  position: absolute;
  bottom: 31%;
  transform: translateY(50%);
  overflow: hidden;
  display: flex;
  justify-content: center;
}

.small-letter-wrap .left {
  flex: 1;
}

.small-letter-wrap .right {
  padding-left: 40px;
  flex: 1;
}

.left .top {
  display: flex;
  justify-content: flex-end;
}

.left .bottom {
  display: flex;
  justify-content: flex-end;
}

.left .top span {
  display: inline-block;
}

.small-letter-wrap .left span {
  text-align: right;
}

.small-letter-wrap .right {
  flex: 1;
}

.small-letter {
  font-size: 15px;
  font-family: Microsoft YaHei, San Francisco,Arial, sans-serif;
  font-weight: 400;
  color: rgba(255, 255, 255, 1);
  line-height: 54px;
  margin-right: 20px;
}

.left .top .small-letter:last-child {
  margin-right: 0;
}

.left .bottom .small-letter:last-child {
  margin-right: 0;
}

.footer {
  position: absolute;
  bottom: 50px;
  display: flex;
  justify-content: center;
  width: 100%;
  z-index: 222;
}

.footer .item {
  margin-right: 40px;
  cursor: pointer;
  align-items: center;
}

.phone {
  width: 20px;
  height: 20px;
  background: url("../assets/phone.png") center no-repeat;
  background-repeat: no-repeat;
  overflow: hidden;
  background-size: contain;
}

.qq {
  width: 20px;
  height: 20px;
  background: url("../assets/email.png") center no-repeat;
  background-repeat: no-repeat;
  overflow: hidden;
  background-size: contain;
  /* margin-top: 4px; */

}

.wechat {
  width: 20px;
  height: 20px;
  background: url("../assets/wechat.png") center no-repeat;
  background-repeat: no-repeat;
  overflow: hidden;
  background-size: contain;
}

.home-left {
  width: 50%;
  height: 100vh;
  /* padding-left: 270px; */
  background: #fff;
  position: absolute;
  top: 0;
  left: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  z-index: 333333;
}

.home-right {
  z-index: 333333;
  right: 0;
  top: 0;
  width: 50%;
  height: 100vh;
  /* padding-left: 10%; */
  background: #fff;
  position: absolute;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
}

.home-left .menu-item {
  margin-left: 270px;
}

.home-right .menu-item {
  margin-left: 20%;
}

.menu-item {
  margin: 10px 0;
  cursor: pointer;
}

.red-dot {
  width: 7px;
  vertical-align: middle;
  height: 7px;
  display: inline-block;
  background: rgba(245, 43, 48, 1);
  border-radius: 50%;
  margin: 0 20px;
}

.menu-item .en {
  font-size: 19px;
  font-family: Microsoft YaHei, San Francisco,Arial, sans-serif;
  font-weight: 400;
  color: rgba(42, 79, 255, 1);
  line-height: 40px;
}

.menu-item .cn {
  padding-left: 24px;
  font-size: 19px;
  font-family: Microsoft YaHei, San Francisco,Arial, sans-serif;
  font-weight: 300;
  color: rgba(129, 129, 130, 1);
  line-height: 40px;
}