@font-face {
    font-family: mFont;
    src: url('../font/YouSheBiaoTiHei-2.ttf');
}

.left_nav {
    /*background-color: #fff;*/
    z-index: 999;
    width: 15%;
    /*padding: 20px;*/
    box-sizing: border-box;
    position: fixed;
    left: 10%;
    top: 160px;
}


.first_level a {
    display: flex;
    align-items: center;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 400;
    color: #999;
    padding: 8px 16px;
    box-sizing: border-box;
}

.first_level>li>a {
    width: 100%;
}

.first_level li a::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 2px;
    background: #999;
    margin-right: 10px;
    transition: width .4s;
}

.first_level li a:hover {
    background: #FCE8FF;
    color: #6A2686
}

.first_level li a:hover::before {
    width: 16px;
    background-color: #6A2686;
}

.selected {
    font-weight: bold !important;
    background: #FCE8FF !important;
    color: #6A2686 !important;
}

.selected::before {
    width: 16px !important;
    background-color: #6A2686 !important;
}

.first_level .second_level {
    margin-left: 26px;
}

.first_level .second_level .third_level {
    margin-left: 26px;
}
/* 
.left_nav .selected > a {
    color: #6A2686;
    font-weight: bold;
    background: #FCE8FF;
}

.left_nav .selected > .space {
    width: 16px;
    background-color: #6A2686;
}

.first_level a {
    display: flex;
    align-items: center;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 400;
    color: #999;
    padding: 8px 16px;
    box-sizing: border-box;
}

.first_level>li>a {
    width: 100%;
}

.first_level li a .space {
    display: inline-block;
    width: 6px;
    height: 2px;
    background: #999;
    margin-right: 10px;
    transition: width .4s;
}

.first_level li a:hover {
    color: #6A2686;
    background: #FCE8FF;
}

.first_level li a:hover .space {
    width: 16px;
    background-color: #6A2686;
} */


.message_content .right_content {
    width: 80%;
    border-left: 1px solid #d9d9d9;
    padding: 0 40px;
    box-sizing: border-box;
    float: right;
    background-color: #fff;
}

.message_content .right_content p {
    text-indent: 2rem;
}

.main_conR .list_content {
    display: flex;
    justify-content: center;
}

.grid {
    display: flex;
    flex-wrap: wrap;
    width: 100%;
    align-content: flex-start;
}

.grid .listitem {
    width: 32%;
    margin-bottom: 40px;
    box-sizing: border-box;
    border: 1px solid #D9D9D9;
    position: relative;
    overflow: hidden;
}

.grid .listitem:not(:nth-of-type(3n)) {
    margin-right: calc(4% / 2);
}

.grid .listitem .preview_img {
    width: 100%;
    height: 207px;
    margin-bottom: 20px;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

.listitem .preview_img img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.grid .listitem .date {
    font-size: 16px;
    font-weight: 400;
    color: #BEBEBE;
    margin-bottom: 10px;
    padding: 0 20px;
    box-sizing: border-box;
    display: inline-block;
}

.grid .listitem h3 {
    color: #1a1a1a;
    font-size: 20px;
    font-weight: bold;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
    padding: 0 20px;
    box-sizing: border-box;
}

.grid .listitem p {
    color: #666;
    font-size: 16px;
    font-weight: 400;
    margin: 20px 0;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 3;
    overflow: hidden;
    min-height: 72px;
    padding: 0 20px;
    box-sizing: border-box;
}

.grid .listitem .more {
    position: relative;
    height: 64px;
    z-index: 100;
}

.grid .listitem .more::after {
    content: '';
    width: 0;
    height: 5px;
    display: block;
    background-color: #6A2686;
    position: absolute;
    left: 0;
    bottom: 0;
    transition: width .4s;
}

.grid .listitem:hover .more::after {
    width: 100%;
}

.grid .listitem .more .more_txt {
    position: absolute;
    right: 70px;
    top: 5px;
    font-size: 20px;
    font-weight: bold;
    color: #6A2686;
    opacity: 0;
    transition: all .4s;
}

.grid .listitem:hover .more_txt {
    opacity: 1;
}


.grid .listitem .arrow {
    position: absolute;
    right: 20px;
    top: 0;
    width: 40px;
    height: 40px;
    text-align: center;
    font-size: 20px;
    line-height: 40px;
    background-color: transparent;
    display: inline-block;
    color: #BEBEBE;
    transition: all .8s;
}

.grid .listitem:hover .arrow {
    color: #6A2686;
    transform: rotate(45deg);

}

.grid .listitem .icon-logo {
    font-size: 80px;
    color: rgba(106,38,134,0.05);
    position: absolute;
    right: -19px;
    bottom: -30px;
    z-index: 10;
}

.list {
    width: 100%;
    height: auto;
}

.list .listitem {
    width: 100%;
    height: 170px;
    padding: 40px 40px 32px 0;
    box-sizing: border-box;
    position: relative;
    border-top: 1px solid #D9D9D9;
}

.list .listitem .preview_img {
    width: 170px;
    height: 96px;
    position: absolute;
    top: 38px;
    left: 0;
    overflow: hidden;
    transition: left .4s;
}

.list .listitem .date {
    font-size: 20px;
    font-family: mFont;
    font-weight: 400;
    color: #666666;
    position: absolute;
    top: 40px;
    right: 40px;
}

.list .listitem h3 {
    width: 74%;
    font-size: 20px;
    font-weight: bold;
    color: #1A1A1A;
    position: absolute;
    top: 40px;
    left: 190px;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 1;
    overflow: hidden;
    transition: left .4s;

}

.list .listitem h3::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    background-color: #101820;
    margin-right: 10px;
    border-radius: 50%;
    position: relative;
    top: -2px;
}

.list .listitem p {
    width: 74%;
    font-size: 16px;
    font-weight: 400;
    color: #666666;
    position: absolute;
    bottom: 36px;
    left: 208px;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
    transition: left .4s;
}

.list .listitem .more_txt {
    display: none;
}

.list .listitem .arrow {
    width: 40px;
    height: 40px;
    position: absolute;
    right: 60px;
    bottom: 32px;
    visibility: hidden;
    border-radius: 50%;
    text-align: center;
    line-height: 40px;
    transition: right .8s;
}

.list .listitem:hover .arrow {
    background-color: #101820;
    color: #fff;
    transform: rotate(45deg);
    visibility: visible;
    right: 40px;
}


.listitem img {
    height: 100%;
    object-fit: contain;
}

.listitem:hover .preview_img {
    left: 40px;
}

.listitem:hover h3 {
    color: #6A2686;
    left: 242px;
}

.listitem:hover h3::before {
    background-color: #6A2686;
}

.listitem:hover p {
    left: 260px;
}

.listitem:hover img {
    transform: scale(1.1);
    transition: all .8s ease;
    transform-origin: center center;
}