header {
  width: 1200px;
  height: 70px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 16px;
}
header .logo-menu {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}
header .logo {
  height: 70px;
}
header .menu {
  display: none;
}
header nav {
  height: 70px;
}
header nav .ul-first {
  display: flex;
  align-items: center;
  height: 100%;
}
header nav .ul-first .li-first {
  margin: 0 16px;
  padding: 0 16px;
  position: relative;
  cursor: pointer;
  height: 100%;
  text-align: center;
}
header nav .ul-first .li-first a {
  color: rgba(0, 0, 0, 0.87);
  display: block;
  width: 100%;
  height: 100%;
  line-height: 70px;
}
header nav .ul-first .li-first .ul-second {
  position: absolute;
  top: 70px;
  width: 150px;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  border: 0px solid rgba(0, 0, 0, 0.5);
  border-radius: 5px;
}
header nav .ul-first .li-first .ul-second::before {
  content: "";
  position: absolute;
  top: -10px;
  left: 20px;
  width: 0;
  height: 0;
  border-left: 10px solid transparent;
  border-right: 10px solid transparent;
  border-bottom: 10px solid rgba(0, 0, 0, 0.5);
}
header nav .ul-first .li-first .ul-second li {
  border-bottom: 1px solid rgba(255, 255, 255, 0.87);
}
header nav .ul-first .li-first .ul-second li a {
  color: rgba(255, 255, 255, 0.87);
  display: block;
  line-height: 24px;
  padding: 8px 16px;
  width: 118px;
}
header nav .ul-first .li-first .ul-second li:last-child {
  border-bottom: none;
}
header nav .ul-first .li-first .ul-second + a {
  display: inline;
}
header nav .ul-first .active {
  position: relative;
}
header nav .ul-first .active::before {
  content: "";
  position: absolute;
  width: 100%;
  left: 0;
  border-top: 4px solid #00BCD4;
}
header nav .ul-first .hover {
  position: relative;
}
header nav .ul-first .hover::before {
  content: "";
  position: absolute;
  width: 100%;
  left: 0;
  border-top: 4px solid #00BCD4;
}

/*# sourceMappingURL=header.css.map */
@media screen and (max-width: 1240px) {
  header {
    width: 100%;
    height: 70px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    font-size: 16px;
  }
  header .logo-menu {
    width: 100%;
    height: 64px;
  }
  header .logo-menu .menu {
    display: block;
    height: 32px;
    margin-right: 16px;
  }
  header {
    width: 100%;
    height: auto;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 16px;
  }
  header nav {
    width: 100%;
    height: auto;
    z-index: 3000;
    top: 64px;
    background: #00BCD4;
  }
  header nav .ul-first {
    /* margin: 16px 0; */
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    height: 100%;
    width: 100%;
  }
  header nav .ul-first .li-first {
    padding: 0 32px;
    width: 100%;
    position: relative;
    cursor: pointer;
    height: 100%;
    text-align: center;
    border-bottom: 1px solid rgba(255, 255, 255, .54);
  }
  header nav .ul-first .li-first:hover a{
    color: #00BCD4;
  }
  header nav .ul-first .li-first:last-child {
    border-bottom: none;
  }
  header nav .ul-first .li-first a {
    color: #fff;
    display: block;
    width: 100%;
    height: 100%;
    line-height: 48px;
  }
  header nav .ul-first .li-first .ul-second {
    display: none !important;
  }
  header nav .ul-first .active a{
    color: #00BCD4;
  }
  header nav .ul-first .active::before {
    content: "";
    position: absolute;
    width: 100%;
    left: 0;
    border-top: none;
  }
  header nav .ul-first .hover::before {
    content: "";
    position: absolute;
    width: 100%;
    left: 0;
    border-top: none;
  }
}

@media screen and (max-width: 1240px) {
  header .logo-menu .menu {
    height: 32px;
  }
  header .logo-menu .menu img{
    width: 32px;
    height: 32px;
  }
  header nav {
    width: 100%;
    height: auto;
    z-index: 3000;
    top: 64px;
    background: rgba(112, 112, 112, .95);
    position: absolute;
  }
}