.heard{
    background: url("img/logo.png") no-repeat;
    
    width: 350px;
    height: 68px;
    margin-top: 20px;
}
.img_top{
    padding-top: 60px;
}
.find{
    margin-top: 40px; 
}
.init{
    border: 1px solid brown;
}

.bg{
    margin-top: 20px;
}
.li1{
    color: brown;
    font-weight: bold;
}
.li2{
    color: #000000;
}
.bg_red{
    background-color: brown;
    height: 320px;
}
.content_left{
    height: 300px;
    /* background-color: cornflowerblue; */
    margin-top: -230px;
    
}
.sp1{
    font-size: 20px;
    color: black;
    display: block;
    padding-top: 18px;
    
    /* padding-left: 63px; */
    
}
.div_left{
    margin-top: 20px;
    width: 90%;
    height: 75px;
    background-color:#F8F8F8;
    text-align: center;
    
    border-radius: 6px;
}
.content_right{
    margin-top: -250px;
    height:900px;
    /* background-color: darkcyan; */
}

.menu{
    display: flex;
    flex-direction: column;
    width: 90%;
}
.flex_item{
    height:30px;
    padding-top: 20px;
}
.moban{
    padding: 40px;;
    width: 95%;
    height: 0%;
    background-color: white;
     /* opacity: 0.8; */
    animation: anm linear 0.5s forwards; 
}
@keyframes anm{
    to{
        height:100%;
        /* opacity: 1; */
    }

}
.spp{
    /* display: inline-block; */
    color:#000000;
    padding-left: 40px;
    top:50px;
    line-height: 40px;
    letter-spacing:3px;
    text-indent : 20px; 
}
.about_img{
    /* margin-top: 25px;
    margin-left: 25px; */
    float: left;
    margin-right: 30px;
    /* object-fit: cover; */
}
/* 阴影 */
.shadow {
	position: relative;
	/* max-width: 270px; */
	box-shadow: 0px 1px 4px rgba(0,0,0,0.3),
				0px 0px 20px rgba(0,0,0,0.1) inset;
}

.shadow::before,
.shadow::after {
   content:"";
   position:absolute;
   z-index:-1;
}

.shadow::before,
.shadow::after {
   content:"";
   position:absolute;
   z-index:-1;
   bottom:15px;
   left:10px;
   width:50%;
   height:20%;
}

 .shadow::before,
.shadow::after {
   content:"";
   position:absolute;
   z-index:-1;
   bottom:15px;
   left:10px;
   width:50%;
   height:20%;
   box-shadow:0 15px 10px rgba(0, 0, 0, 0.7);
   transform:rotate(-3deg);
}

.shadow::after{
   right:10px;
   left:auto;
   transform:rotate(3deg); 
 }