*{
    margin: 0;
    padding:0;
}
body{
    background-color: #f6f9fa;
    margin: 0 auto;
    padding: 0;
    overflow: hidden;
    width: 100%;

}
a:link,a:visited {
    text-decoration: none;
    color: #212121;
}


.body-all {
    width: 900px;
    max-height: 900px;
    overflow: hidden;

    /* 关键修改：删除 float: left，保留 margin: 0 auto */
    margin: 0 auto;

    /* 如果内部子元素需要居中，可以保留 flex，但通常最外层不需要 align-items: center */
    overflow-y: auto;

}

/*导航*/
.top_bar{
    width: 900px;
    height: 80px;
    background-color: #f6f9fa;
    position: fixed;
    top: 0;
    z-index: 999;


}

.top_bar .top_ob{
    list-style-type: none;
    height: 50px;
    line-height: 80px;
    padding: 15px 0 15px 0;
    overflow: hidden;

}
.top_block{
    width: 150px;
    height: 50px;
    float: left;
    line-height: 50px;
    text-align: center;
    overflow: hidden;
    border-radius: 4px;
    box-shadow: 2px 5px 5px #eef6ea;
}
.top_block a{
    width: 150px;
    height: 50px;
    float: left;
    overflow: hidden;
}
.top_box{
    width: 150px;
    /*height: 50px;*/
    float: left;
    color: #212121;
    opacity: 0.7;
    font-family:  "宋体", serif, Arial, Helvetica;
    font-size: 20px;

}


.top_box:hover{
    color: #f90;
    opacity: 1;
}
/*正文部分*/


/*图片部分*/
.container{
    width: 900px;
    height: auto;
    text-align: center;
    position: relative;
    margin-top: 150px;
    overflow: hidden;


}
.container .arr-border .box_border{
    height: auto;
    width: 205px;
    margin: 10px;
    position: relative;
    float: left;

}
.container .arr-border .box_border .img-box a{
    display: block; /* 关键：让a标签成为块级，包裹住图片 */
    width: 100%;
    height: auto;

}
.container .arr-border .box_border .img-box{
    width: 205px;
    height: auto; /* 高度由内部图片决定 */
    overflow: hidden;
    border-radius: 5px;
    margin-bottom: 10px;
}
.container .arr-border .box_border .img-box img{
    display: block; /* 消除底部空白 */
    width: 100%;    /* 宽度撑满容器 */
    height: auto;   /* 高度自动，保持原始宽高比 */
    transition: all 0.5s ease;
    cursor: pointer;
}
.container .arr-border .box_border p{
     width: 205px;
     position: relative;
    overflow: hidden;
}
.arr-border{
    width: 900px;
    height: auto;
    font-family:  "宋体", serif, Arial, Helvetica;
    overflow: hidden;
    padding-top: 40px
}
.container img:hover{
    transform: scale(1.05);
    -webkit-transform: scale(1.05);
    -moz-transform: scale(1.05);
    -ms-transform: scale(1.05);
    -o-transform: scale(1.05);
    z-index: 2;
}
.container .body_bar{
    width: 900px;
    text-align: center;
    position: relative;
    float:left;

}
.container .body_bar2{
    width: 900px;
    margin-left: 350px;
    height: auto;
    text-align: center;
    position: relative;
    float:left;
}
.container .body_bar .bar1 p{
    text-align: left;
    margin-left: 15px;
    margin-right: 15px;
    opacity: 0.7;
    font-family:  "宋体", serif, Arial, Helvetica;
    font-size: 20px;
    height: 30px;


}
.container .body_bar .bar1 a{
    width: auto;
    float:left;
    box-shadow: 2px 5px 5px #eef6ea;
    border-radius: 6px;
}
.container .body_bar .bar1{
    cursor: pointer;
    width: auto;
    height: 30px;
    padding: 5px;
    text-align: center;
    position: relative;
    float:left;


}
.container .body_bar .bar1 p:hover{
    color: red;
    opacity: 1;
}
.container .body_bar2 .bar2 p:hover{
    color: red;
    opacity: 1;
    border: 1.5px solid red;
}
.container .body_bar .bar2{
    width: 900px;
    height: 30px;
    margin: 15px 0 10px 0;
    text-align: center;
    position: relative;
    float: left;
}
.container .body_bar2 .bar2 p{
    text-align: center;
    opacity: 0.7;
    font-family:  "宋体", serif, Arial, Helvetica;
    font-size: 20px;
    border: 1.5px solid black;
    border-radius: 2px;
}
.container .body_bar2 .bar2{
    cursor: pointer;
    width: 100px;
    height: 20px;
    margin: 10px;
    text-align: center;
    position: relative;
    float:left;


}
.container .body_bar .bar2 p{
    text-align: center;
    opacity: 0.7;
    font-family:  "宋体", serif, Arial, Helvetica;
    font-size: 20px;
    height: 30px;
}
.container .body_bar .bar3{
    width: 900px;
    margin: 10px 0;
    height: auto;
    text-align: center;
    position: relative;
    float: left;
}
.container .body_bar .bar3 p{
    text-align: left;
    opacity: 0.9;
    font-family:  "宋体", serif, Arial, Helvetica;
    font-size: 15px;
    line-height:22px;
}

/*脚部信息*/
.footing{
    width: 900px;
    height: 60px;
    background-color: #f5f8f9;
    margin-top: 100px;
    z-index: 999;
    overflow: hidden;
    position: fixed;
    bottom: 0;
}



.footing .footing_bottom{
    width:900px;
    background-color: #f5f8f9;
    overflow: hidden;
    height: 40px;}

.footing .footing_bottom .foot_cell{
    width:130px;
    float: left;
    height:20px;
    font-family:  "宋体", serif, Arial, Helvetica;
    font-size: 15px;
    margin: 10px 0 10px 24px;
    cursor: pointer;
    opacity: 0.7;
}

.footing .footing_bottom .foot_cell1{
    width:260px;
    height:20px;
    float: left;
    font-family:  "宋体", serif, Arial, Helvetica;
    font-size: 15px;
    margin: 10px 10px;
    cursor: pointer;
    opacity: 0.7;
}
.footing .footing_bottom .foot_cell .foot_cell2{
    width:130px;
    float: left;
    cursor: pointer;
    opacity: 0.5;
}
.footing .footing_bottom .foot_cell a{
    width:130px;
    height:20px;
    float: left;
}
.footing .footing_bottom .foot_cell3{
    width:60px;
    height:20px;
    float: left;
    margin: 12px 12px;
    opacity: 0.7;
}