.mt30 {
  margin-top: 30px;
}
@media only screen and (min-width: 1200px) {
  .sy-dt {
    padding-top: 55px;
  }
  .sy-dt .tit3 {
    text-align: center;
    margin-bottom: 5px;
  }
  .sy-dt .tit3 i {
    margin: 0 auto;
    margin-top: 15px;
  }
  .dt-r,
  .dt-l {
    float: left;
    width: 590px;
    background-color: #fff;
    padding: 30px 35px;
    margin-top: 25px;
  }
  .dt-1 {
    height: 672px;
  }
  .dt-2 {
    height: 613px;
  }
  .dt-r {
    float: right;
  }
  .nu1 {
    display: flex;
    justify-content: space-between;
  }
  .nu1 li {
    width: 245px;
  }
  .nu1 li a {
    display: block;
    width: 100%;
    height: 100%;
  }
  .nu1 li .imgk {
    width: 245px;
    height: 350px;
  }
  .nu1 li .name {
    margin-top: 15px;
    margin-bottom: 5px;
    font-size: 20px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 1;

  }
  .nu1 li .txt {
    padding-top: 10px;
    font-size: 16px;
    height: 91px;
    line-height: 1.7;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
  }
  .nu1 li .time {
    font-size: 16px;
  }
  .nu2 li a {
    display: block;
    width: 100%;
    height: 100%;
    padding: 16px 20px;
    padding-bottom: 5px;
  }
  .nu2 li .tit {
    font-size: 18px;
    font-weight: 600;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 1;
    margin-bottom: 10px;
    color: #333;
  }
  .nu2 li p {
    font-size: 16px;
    display: flex;
    margin-bottom: 10px;
  }
  .nu2 li p i {
    margin-right: 10px;
    display: block;
    width: 23px;
    height: 23px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: url(../images/icon-1.png) no-repeat center center #004098;
    background-position: 4.2px 3.3px;
    background-size: 64%;
  }
  .nu2 li p:nth-child(2) i {
    background-image: url(../images/icon-2.png);
  }
  .nu2 li p:nth-child(3) i {
    background-image: url(../images/icon-3.png);
  }
  .nu2 li p span {
    flex: 1;
    color: #676767;
  }
  .nu2 li:hover {
    background-color: #004098;
  }
  .nu2 li:hover .tit {
    color: #fff;
  }
  .nu2 li:hover p i {
    background: url(../images/icon-4.png) no-repeat center center #fff;
    background-position: 4.2px 3.3px;
    background-size: 64%;
  }
  .nu2 li:hover p:nth-child(2) i {
    background-image: url(../images/icon-5.png);
  }
  .nu2 li:hover p:nth-child(3) i {
    background-image: url(../images/icon-6.png);
  }
  .nu2 li:hover p span {
    color: #fff;
  }
  .nu3 {
    border-left: 1px solid #dcdcdc;
  }
  .nu3 li {
    margin-left: 40px ;
    position: relative;
    padding-bottom: 25px;
  }
  .nu3 li:last-child {
    margin-bottom: 10px;
  }
  .nu3 li .time {
    color: #004098;
    font-size: 16px;
    margin-bottom: 10px;
  }
  .nu3 li .txt {
    font-size: 18px;
    height: 48px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
  }
  .nu3 li i {
    position: absolute;
    left: -46px;
    top: 0;
  }
  .nu4 li {
    border-bottom: 1px dashed #eeeeee;
  }
  .nu4 li a {
    display: block;
    width: 100%;
    height: 100%;
    padding: 18px 0;
  }
  .nu4 li .name {
    font-size: 18px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 1;
  }
  .nu4 li .name span {
    color: #004098;
  }
  .nu4 li .time {
    font-size: 16px;
    color: #666666;
  }
  .nu5 li {
    margin-bottom: 20px;
    background-color: #fff;
  }
  .nu5 li a {
    display: flex;
    width: 100%;
    height: 100%;
    padding: 18px 20px;
  }
  .nu5 li .imgk {
    width: 118px;
    height: 177px;
    margin-right: 27px;
  }
  .nu5 li .imgk img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .nu5 li .info {
    flex: 1;
    width: 100%;
    padding-top: 10px;
  }
  .nu5 li .info .tit {
    font-size: 18px;
    margin-bottom: 20px;
  }
  .nu5 li .info .name {
    font-size: 16px;
    margin-bottom: 15px;
  }
  .nu5 li .info .time {
    font-size: 16px;
  }
  .nu5 li:hover {
    background-color: #004098;
  }
  .nu5 li:hover a {
    color: #fff;
  }
  .nu6 li .imgk {
    width: 160px;
    height: 228px;
  }
  select.sel1 {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background: url(../images/icon-sel.png) no-repeat #fff 95% center;
  }
}
@media only screen and (max-width: 1200px) {
  .sy-dt {
    padding-top: 20px;
  }
  .sy-dt .tit3 {
    text-align: center;
    margin-bottom: 5px;
  }
  .sy-dt .tit3 i {
    margin: 0 auto;
    margin-top: 15px;
  }
  .dt-r,
  .dt-l {
    background-color: #fff;
    padding: 15px;
    margin-top: 15px;
  }
  .nu1 {
    display: flex;
    justify-content: space-between;
  }
  .nu1 li {
    width: 49%;
  }
  .nu1 li a {
    display: block;
    width: 100%;
    height: 100%;
  }
  .nu1 li .imgk {
    width: 100%;
    height: 57vw;
    margin: 0 auto;
  }
  .nu1 li .name {
    margin-top: 15px;
    margin-bottom: 5px;
    font-size: 18px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 1;
  }
  .nu1 li .txt {
    font-size: 16px;
    line-height: 1.7;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
  }
  .nu1 li .time {
    font-size: 14px;
  }
  .nu2 li a {
    display: block;
    width: 100%;
    height: 100%;
    padding: 10px;
    padding-bottom: 5px;
  }
  .nu2 li .tit {
    font-size: 16px;
    font-weight: 600;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 1;
    margin-bottom: 10px;
    color: #333;
  }
  .nu2 li p {
    font-size: 14px;
    display: flex;
    margin-bottom: 10px;
  }
  .nu2 li p i {
    margin-right: 10px;
    display: block;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: url(../images/icon-1.png) no-repeat center center #004098;
    background-position: 3px 3px;
    background-size: 64%;
  }
  .nu2 li p:nth-child(2) i {
    background-image: url(../images/icon-2.png);
  }
  .nu2 li p:nth-child(3) i {
    background-image: url(../images/icon-3.png);
  }
  .nu2 li p span {
    flex: 1;
    color: #676767;
  }
  .nu2 li:hover {
    background-color: #004098;
  }
  .nu2 li:hover .tit {
    color: #fff;
  }
  .nu2 li:hover p i {
    background: url(../images/icon-4.png) no-repeat center center #fff;
    background-position: 3px 3px;
    background-size: 64%;
  }
  .nu2 li:hover p:nth-child(2) i {
    background-image: url(../images/icon-5.png);
  }
  .nu2 li:hover p:nth-child(3) i {
    background-image: url(../images/icon-6.png);
  }
  .nu2 li:hover p span {
    color: #fff;
  }
  .nu3 {
    border-left: 1px solid #dcdcdc;
  }
  .nu3 li {
    margin-left: 40px;
    position: relative;
    padding-bottom: 15px;
  }
  .nu3 li:last-child {
    margin-bottom: 10px;
  }
  .nu3 li .time {
    color: #004098;
    font-size: 14px;
    margin-bottom: 10px;
  }
  .nu3 li .txt {
    font-size: 16px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
  }
  .nu3 li i {
    position: absolute;
    left: -46px;
    top: 0;
  }
  .nu4 li {
    border-bottom: 1px dashed #eeeeee;
  }
  .nu4 li a {
    display: block;
    width: 100%;
    height: 100%;
    padding: 18px 0;
  }
  .nu4 li .name {
    font-size: 16px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 1;
  }
  .nu4 li .name span {
    color: #004098;
  }
  .nu4 li .time {
    font-size: 14px;
    color: #666666;
  }
  .nu5 li {
    margin-bottom: 20px;
    background-color: #fff;
  }
  .nu5 li a {
    display: flex;
    width: 100%;
    height: 100%;
    padding: 18px 20px;
  }
  .nu5 li .imgk {
    width: 118px;
    height: 177px;
    margin-right: 20px;
  }
  .nu5 li .imgk img {
    width: 100%;
    height: 100%;
    object-fit: cover;
  }
  .nu5 li .info {
    flex: 1;
    width: 100%;
    padding-top: 10px;
  }
  .nu5 li .info .tit {
    font-size: 16px;
    margin-bottom: 15px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
  }
  .nu5 li .info .name {
    font-size: 14px;
    font-size: 16px;
    margin-bottom: 15px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
  }
  .nu5 li .info .time {
    font-size: 14px;
  }
  .nu5 li:hover {
    background-color: #004098;
  }
  .nu5 li:hover a {
    color: #fff;
  }
  select.sel1 {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    background: url(../images/icon-sel.png) no-repeat #fff 95% center;
    background-size: 7px;
  }
}