html,body,div,ul,li,p,h1,h2,h3,h4,h5,h6,span{

  margin: 0;

  padding: 0;

  box-sizing: border-box;

}

body{

  font-family: "微软雅黑";
  min-width: 1320px;
}

li{

  list-style: none;

}

a{

  text-decoration: none;

}

.w-1320{

  width: 1320px;
  margin: 0 auto;

}

.font-14{

  font-size: 14px;

  line-height: 19px;

}

.font-16{

  font-size: 16px;

  line-height: 21px;

}

.color-999{

  color: #999;

}

.color-666{

  color: #666;

}

.color-333{

  color: #333;

}

.flex-x{

  display: flex;

}

.flex-xb{

  display: flex;

  align-items: center;

  justify-content: space-between;

}

.flex-xc{

  display: flex;

  align-items: center;

  justify-content: center;

}

.flex-yb{

  display: flex;

  flex-direction: column;

  justify-content: space-between;

}

.flex-yc{

  display: flex;

  flex-direction: column;

  justify-content: center;

}
.hide{
  display: none;
}