*{
	margin: 0;
	padding: 0;
}
.slide{
	position: relative;
	width: 100%;
	height: 100%;
	/* margin: 40px auto; */
	overflow: hidden;
}
.img ul{
	position: absolute;
	left: -100%;
	width: 400%;
	height: 100%;
}
.img li{
	list-style-type: none;
	float: left;
	width: 25%;
	height: 100%;
}
/* .img img{
	width: 1000px;
	height: 500px;
} */
#num li{
	/* list-style-type: none;
	background-color: white;
	border: 1px solid red;
	border-radius: 100px;
	float: left;
	width: 10px;
	height: 10px;
	margin: 10px;
	cursor: pointer; */
	display: inline-block;
    background: #FFFFFF;
    border: 1px solid rgba(0,0,0,0.20);
    width: 1.2rem;
    height: 1.2rem;
    border-radius: 50%;
    cursor: pointer;
	font-size: 0;
	margin-left: 1rem;
}
#num .banner_active{
	width: 2.8rem;
	border-radius: 8px;
}
#num li:first-child{
	margin-left: 0;
}
#num {
	position: absolute;
	bottom: 1rem;
	width: 100%;
	display: flex;
	justify-content: center;
	align-items: center;
	/* position: absolute;
	top: 450px;
	left: 800px; */
}
.btn{
	font-size: 30px;
	color: gray;
}
#left{
	position: absolute;
    width: 3.33rem;
    height: 3.33rem;
    background: rgba(0,0,0,0.1);
    color: #fff;
    border-radius: 4px;
    font-size: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    top: calc(50% - 1.67rem);
	left: 1.67rem;
	cursor: pointer;
}
#right{
	position: absolute;
    width: 3.33rem;
    height: 3.33rem;
    background: rgba(0,0,0,0.1);
    color: #fff;
    border-radius: 4px;
    font-size: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    top: calc(50% - 1.67rem);
	right: 1.67rem;
	cursor: pointer;
}
#left:hover, #right:hover{
    background: rgba(0,0,0,0.6);
}