:root {
  --family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Tahoma", "Arial", "sans-serif";
  --family-en: "Manrope", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Tahoma", "Arial", "sans-serif";
}

*,
*:before,
*:after {
  margin: 0;
  padding: 0;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}

body {
  -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
  margin: 0 auto;
  overflow-x: hidden;
  position: relative;
  padding: 0;
  width: 100%;
  font-size: 14px;
  line-height: 1.4;
  font-family: var(--family);
}

html.act {
  overflow: hidden;
  width: 100%;
  height: 100vh;
}

a {
  display: inline-block;
  text-decoration: none;
  cursor: pointer;
  transition: all .5s;
  color: inherit;
  outline: none;
}

img {
  border: none;
  display: block;
  max-width: 100%;
}

img[src=""] {
  opacity: 0;
}

video {
  display: block;
}

.fw-400 {
  font-weight: 400;
}

.fw-600 {
  font-weight: 600;
}

.text-center {
  text-align: center;
}

.img-wrap img {
  display: block;
  border: none;
  width: 100%;
  max-width: 100%;
}

.bg {
  width: 100%;
  height: 100%;
  isolation: isolate;
}

.bg img,
.bg video {
  display: block;
  border: none;
  width: 100%;
  height: 100%;
  -o-object-fit: cover;
  object-fit: cover;
  max-width: 100%;
}

.flex {
  display: flex;
  flex-wrap: wrap;
}

.flex-between {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}

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

.flex-align-center {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
}

.flex-column-center {
  display: flex;
  flex-wrap: wrap;
  flex-direction: column;
  justify-content: center;
}

.flex-center {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
}

.navbar-toggle {
  display: none;
}

@media screen and (max-width:19999px) {
  .text-14 {
    font-size: 0.729vw;
  }

  .text-16 {
    font-size: 0.833vw;
  }

  .text-18 {
    font-size: 0.938vw;
  }

  .text-24 {
    font-size: 1.25vw;
  }

  .text-32 {
    font-size: 2.8vw;
  }

  .text-68 {
    font-size: 3.542vw;
  }
}

@media screen and (max-width:768px) {
  .text-14 {
    font-size: 12px;
  }

  .text-16 {
    font-size: 14px;
  }

  .text-18 {
    font-size: 16px;
  }

  .text-24 {
    font-size: 16px;
  }

  .text-32 {
    font-size: 24px;
  }

  .text-68 {
    font-size: 28px;
  }

  body {
    min-width: 200px;
  }

  .navbar-toggle {
    display: inline-block;
    padding: 0;
    z-index: 55;
  }

  .navbar-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background-color: #fff;
    margin: 5px 0;
    transition: 0.4s;
  }

  .open .line-top {
    transform: rotate(45deg) translate(3px, 7px);
  }

  .open .line-middle {
    opacity: 0;
  }

  .open .line-bottom {
    transform: rotate(-45deg) translate(2px, -7px);
  }
}