body {
    margin: auto;
    padding: auto;
    overflow-x: hidden;
    overflow-y: hidden;
  }
.box{
    display: flex;
    z-index: 999999;
    position: absolute;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
    /* border: 10px solid red; */
    background-image: url(../image/family.webp);
    background-size: 100%;
    animation: bj 2.5s ease 0s;
}

.ss{
    margin-top: 10vh;
    width: 30vh;
}

.box_down{
    /* border: 5px solid red;  */
    width: 75%;
    height: 75%;
    background-color: rgba(124, 150, 173, 0.411);
    border-radius: 15px;
    border-bottom: 2px solid rgb(249, 254, 255);
    border-right: 1px solid rgb(249, 254, 255);
    border-top: 1px solid rgb(249, 254, 255);
    border-left: 1px solid rgb(249, 254, 255);
    transition: all 0.5s ease 0s;
    overflow: hidden;
}

.content_ul{
    display: flex;
    width: 80%;
    margin: 60px auto; 
    /* border: 1px solid red; */
    list-style: none;
    text-align: center;
    justify-content: space-around
}

.content_ul li{
    display: block;
    width: 30vh;
    height: 50px;
    color: rgb(95, 120, 143);
    /* background-color: rgba(255, 228, 196, 0.658); */
    border-radius: 15px;
    border-left: 3px solid rgba(0, 162, 255, 0.438);
    border-right: 3px solid rgba(0, 162, 255, 0.438);
    border-top: 3px solid rgba(0, 162, 255, 0.749);
   
    opacity: 0;
    transition: all 1.5s ease 0s;
}
.content_ul h1{
      margin: auto;
}
.content_ul li:hover{
    background-color:rgb(141, 230, 255);
   
    box-shadow: 0 5px 10px rgba(39, 41, 70, 0.589);
}

.content{
    position: relative;
    z-index: 2;
    display: none;
    margin-top: 50px;
    margin-left: -6vh;
    border-radius: 10px;
    width: 40vh;
    height: 50vh;
    border: 2px double white;
    /* border: 1px solid red; */
    background-color: rgba(124, 150, 173, 0.411);
    box-shadow: 5px 5px 8px rgba(39, 41, 70, 0.589);
    animation: begin 0.3s ease 0s;
    transition: all 0.8s ease 0s;
    box-shadow: 5px 5px 8px rgba(39, 41, 70, 0.589);
}

.content_ul li:hover .content{
    display: block;
    backdrop-filter: blur(100px);
     transition: all 1s ease 0s;
}


.box_down:hover{
    backdrop-filter: blur(5px);
}


.zhuangshi{
    position: relative;
    z-index: 0;
    width: 250px;
    height: 250px;
    margin: 8% auto;
    border-radius: 50%;
    /* background-color: aqua; */
    background-image: url(../image/family.webp);
    background-size: 100%;
    border: 5px solid rgba(255, 255, 255, 0.854);
    transition: all 2s ease 0s;
    animation: round 4s linear 0s;
    animation-iteration-count: infinite;
    opacity: 0;
}

.box_down:hover li,.box_down:hover .zhuangshi{
    display: block;
    opacity: 1;
}

.friend{
    height: 45px;
    width: 80%;
    border: 1px double white;
    border-radius: 15px;
    text-align: center;
    background-color: rgba(128, 175, 216, 0.411);
    margin: 10% auto;
    transition: all 0.5s ease 0s;
}

.friend:hover{
    transform: scale(1.1);
}

@keyframes round{
    0%{
        transform: rotate(0deg);
    }
    100%{
        transform: rotate(360deg);
    }
}