.hd_top {
    width: 100%;
    border-top: 5px solid #38a548;
    background: #f7f7f7;
    height: 40px;
    border-bottom: 1px solid #e5e5e5;

}
.hd_top1 {
    width: 1000px;
    height: 5px;
    background: url(http://news.youth.cn/images/youth_sjy_01.jpg) no-repeat;
    margin: -5px auto;
}
.hd_top_box {
    width: 1000px;
    height: 40px;
    margin: 0 auto;
    line-height: 45px;
    text-align: left;
    font-size: 12px;
    color: #666666;
}
.hd_top_box a {
    padding: 0 10px;
    font-size: 12px;
    color: #666666;
    font-family: "Microsoft Yahei",helvetica,arial,sans-serif;
    word-wrap: break-word;
}

.header {
    width: 100%;
    height: auto;
    background: url("20181218tu1_02.jpg") no-repeat center center;
    background-size: cover;
}

.header-top {
    width: 100%;
    height: 350px;
    position: relative;
}
.header-top img:nth-child(1){
    position: absolute;
    left: 80px;
    top:47px;
    animation: leftORight 1s;
}
.header-top img:nth-child(2){
    position: absolute;
    left:150px;
    top:35px;
    animation: FangDa 1s;
}
.header-top img:nth-child(3){
    position: absolute;
    top:224px;
    left: 70px;
}
.header-top img:nth-child(4){
    position: absolute;
    left: 250px;
    top: 270px;
    animation: Widths 1s;
}
.context-center {
    width: 100%;
    height: 490px;
    padding: 0 48px;
    box-sizing: border-box;
}
.context-t {
    width: 100%;
    height: 205px;
    position: relative;
    animation: topBottom 1s;
}
.context-circle {
    width: 856px;
    height: 154px;
    background-color: #f29292;
    opacity: 0.8;
    position: absolute;
    bottom: 0;
    left:25px;
    border-radius: 50px;
    padding: 22px 33px 0 33px;
    font-size: 16px;
    color: #fff;
    box-sizing: border-box;
}
.context-circle p {
    line-height: 28px;
}
.context-b {
    width: 100%;
    text-align: center;
    margin-top: 31px;
    animation: topBottom 1s;
}


/* 版权 */

.youth_copyright {
    width: 1000px;
    margin: 0 auto;
    margin-bottom: 30px;
}

.youth_copyright span {
    width: 700px;
    padding: 10px 10px 0px 0px;
    color: #999;
    float: left;
    text-align: right;
    line-height: 36px;
    font-size: 14px;
}

.youth_copyright span a {
    color: #999;
}

.youth_copyright p a {
    color: #fc6448;
    font-size: 14px;
}

.youth_copyright p a:hover {
    color: #857f81;
}

.youth_copyright p {
    text-align: center;
    line-height: 40px;
    color: #fc6448;
}

.youth_copyright img {
    margin-top: 20px;
    margin-left: 8px;
    float: left;
}





/* 动画 */
  @keyframes leftORight {
       0% {
           transform: translateX(-500px);
           opacity: 0;
       }
       100% {
           transform: none;
           opacity: 1;
       }
  }

  @keyframes FangDa {
       0% {
           transform: scale(0.1);
            opacity: 0;
       }
       100% {
           transform: none;
           opacity: 1;
       }
  }
  @keyframes  Widths {
       0% {
           width: 0px;
           height: 29px;
           opacity: 0;
       }
       100% {
           width: 587px;
           height: 29px;
           opacity: 1;
       }
  }

  @keyframes topBottom {
        0% {
            transform: translateY(1000px);
            opacity: 0;
        }
        100% {
            transform: none;
            opacity: 1;
        }
  }