body{
    background-color: #f8cbbf;

    text-align: center;
}
.background{
    width: 1200px;
    height: 800px;
    position: relative;
    z-index: -1;
}
a{
    text-decoration: none;
    color: white;
    cursor: pointer;
}
a:hover{
    text-decoration: underline;
}

#container{
    position: relative;
    width: 1200px;
    margin: auto;
    height: 900px;
}
#contents{
    width: 1200px;
    height: 800px;
    border-radius: 30px;
    background-color: rgba(255, 255, 255, 80%);
    position:absolute;
    left: 0;
    top: 75px;
    display: flex;
}
.introduction{
    margin-left: auto;
    margin-right: auto;
    margin-top: 132px;
    text-align: left;
    width: 400px;
    text-wrap: wrap;
    color: #505050;
    font-size:16px;
    text-shadow:2px 2px 10px white;
}
#introduction_aboutus{
    margin-top: 200px;
    width:1000px;
    font-size: 18px;
}
.title{
    position: absolute;
    left: 0;
    top:25px;
    z-index: 1;
}
.subtitle{
    font-size: 18px;
    font-weight: bold;
}
#back_to_home{
    position: absolute;
    right: 0;
    text-align: center;
    display: flex;
    
    border-top-left-radius: 10px;
    
    border-bottom-left-radius: 10px;
 
    bottom: 50px;
    height: 50px;
    width: 130px;
    background-color: #505050;
    z-index: 1;
}
p{
    text-indent: 2em;
}
footer{
    background-color:#505050 ;
    width:100%;
    height: 230px;
    text-align: center;
    color: white;
    z-index: 3;
}
#title{
    margin: auto;
    width: 1280px;
    height: 711px;
}
#buttons{
    background-color: #93d0c7;
    display: flex;
    justify-content: center;
    width:100%;
    height: 90px;
}
#buttons_acg{
    background-image: url('../img/buttons_acg.png');
}
#buttons_finance{
    background-image: url('../img/buttons_finance.png');
}
#buttons_aboutus{
    background-image: url('../img/buttons_aboutus.png');
    
}
.hoverimg{
    position: relative;
    left: 0;
    top :0;
    height: 90px;
    width: 426px;
}
.homepage_button{
    width: 426px;
    height: 88px;
    color: white;
    
    cursor: pointer;
}
#buttons_acg{
    margin-left: auto;
}
#buttons_aboutus{
    margin-right: auto;
}
.icon_beian{
    height: 24px;
    width: 24px;

}
#footer_info1{
    display: flex;
    height: 150px;
}
.info{
    text-align: center;
    width: auto;
    margin-top: 3%;
    margin-left: auto;
    margin-right: auto;
    height: 100px;
    color: white;
}
.info_img{
    margin-top: 2%;
    margin-left: auto;
    margin-right: auto;
}


.popup{
    margin: auto;
    text-align: center;
}
.popup_info{
    margin: auto;
    font-family: marusc;
    font-size: 22px;
    border: #FFFFFF;
    color: #000;
}

.block{
    position: fixed;
    top: 0;
    left: 0;
    z-index: 10;
    width: 100%;
    height: 100%;
    background-color: rgba(255,255,255,0.6);
    display: none;
    text-align: center;
}

#donate:hover{
    background-image: url('../img/donate_common_focus.png');

}

#donate{
    background-image: url('../img/donate_common.png');
    background-repeat: no-repeat;
    position: absolute;
    top:0px;
    right:0px;
    width: 76px;
    height: 76px;
}

#members{
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: flex-start;
}
#members_item{
    text-align: center;
    height: 300px;
    margin: auto;
    width: 150px;
    margin-left: 25px;
}