* {
  margin: 0;
  padding: 0;
}

a {
  text-decoration: none;
  color: inherit;
}

.page {
  width: 100%;
  color: #000;
  font-size: 1.2vw;
  overflow-x: hidden;
}

.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100px;
  border-bottom: 1px solid rgba(216, 216, 216, 0.23);
  display: flex;
  align-items: center;
  box-sizing: border-box;
  padding: 0 10em;
  z-index: 99;
}

.nav .nav-left img {
  width: 10em;
}

.nav .nav-right {
  display: flex;
  align-items: center;
  margin-left: 10em;
}

.nav .nav-right a {
  height: 50px;
  display: flex;
  flex-shrink: 0;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  color: rgba(255, 255, 255, 0.64);
  padding: 0 20px;
}

.nav .nav-active div {
  width: 25px;
  height: 2px;
  background: #ffffff;
  border-radius: 2px;
  margin-top: 5px;
}

.nav-active span {
  font-weight: 600;
  color: #ffffff;
}

.nav-bg {
  background-color: #fff;
}

.nav-bg .nav-right a {
  color: #999;
}

.nav-bg .nav-active span {
  color: #333;
}

.nav-bg .nav-active div {
  background: #ff2323;
}

.nav-occupy {
  height: 100px;
}

.container {
  width: 100%;
  height: 100vh;
  overflow: hidden;
  position: relative;
}

#swiper {
  width: 100%;
  height: 100%;
  overflow: hidden;
}

#swiper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  -o-object-position: center;
}

.container .content {
  position: absolute;
  bottom: 50%;
  transform: translateY(50%);
  left: 10em;
  z-index: 9;
  width: 28em;
}

.container .content img:nth-child(1) {
  width: 25em;
}

.container .content img:nth-child(2) {
  width: 27em;
  margin-top: 1.4em;
}

.container .content img:nth-child(3) {
  width: 25em;
  margin-top: 2em;
}

.container-img {
  height: fit-content;
}

.container-img img {
  width: 100%;
}

.scroll-line {
  position: absolute;
  top: 50px;
  left: 0;
  width: 100%;
  height: 1px;
}

.down{
  text-align: center;
}

.down img {
  width: 20%;
  margin-top: 1em;
}

.footer {
  font-size: 0.7em;
  text-align: center;
  padding: 1.7em 0;
}

.footer a:hover {
  color: blue;
  text-decoration: underline;
  text-decoration-color: blue;
}

.dynamic {
  background-image: url(../img/gsdt-bg.png);
  background-repeat: no-repeat;
  background-size: 100% contain;
  background-position: center;
  position: relative;
}

.dynamic .content {
  padding: 3em 0 4em;
  margin-left: 10em;
}

.dynamic .bg-text{
  position: absolute;
  top: 9em;
  left: 6.5em;
  width: 3em;
}

.dt-title {
  font-size: 2em;
  font-weight: 600;
  color: #ffffff;
  margin-bottom: 2em;
}

.dt-li {
  display: flex;
}

.dt-li-title {
  width: 6em;
  font-size: 1.1em;
  font-weight: 600;
  text-align: right;
  color: #fff;
}

.dt-li-line {
  width: 5px;
  height: 136px;
  background-color: rgba(152, 182, 225, 0.45);
  margin: 14px 30px 0;
  position: relative;
}

.dt-li-line::after {
  content: "";
  position: absolute;
  top: -16px;
  left: -10px;
  width: 26px;
  height: 26px;
  background: url("../img/circle.png") no-repeat;
  background-size: contain;
}

.dt-li-cont {
  width: 20em;
  font-size: 0.8em;
  color: #a6ceea;
}

@media screen and (max-width: 700px) {
  .page {
    font-size: 14px;
  }

  .nav {
    padding: 0 2em;
  }

  .nav .nav-right {
    margin-left: 2em;
  }

  .dynamic .content {
    margin-left: 2em;
  }

  .dt-li-cont {
    width: 12em;
    font-size: inherit;
  }

  .container .content {
    left: 3em;
  }

  .dynamic .bg-text{
    top: 14em;
    left: 2em;
    width: 3em;
    z-index: 0;
  }

  .container .content img:nth-child(1) {
    width: 20em;
  }

  .container .content img:nth-child(2) {
    width: 22em;
    margin-top: 1.4em;
  }

  .container .content img:nth-child(3) {
    width: 20em;
    margin-top: 2em;
  }

  .down img {
    width: 40%;
  }
}