.inner {
    background-color: var(--inner-bgcolor);
}
.inner .container {
    display: flex;
}
.left-nav {
    width: 275px;
    margin-bottom: 50px;
}
.left-container {
    width: 248px;
    padding-bottom: 80px;
    background: #fff url('../images/inner_left_bg.png') center bottom no-repeat;
    box-shadow: 2px 2px 9px -2px var(--primary-color);
}
.left-menu {
    padding-top: 30px;
}
.left-menu-item > a {
    display: block;
    height: 56px;
    line-height: 56px;
    font-size: 18px;
    padding-left: 40px;
}
.left-menu-item > a:hover {
    color: var(--primary-color);
}
.left-menu-item.active > a {
    color: #fff;
    background-color: var(--primary-color);
    position: relative;
}
.left-menu-item.active > a::after {
    content: '';
    display: block;
    width: 26px;
    height: 66px;
    background: url('../images/inner_left_arrow.png') no-repeat;
    position: absolute;
    right: -26px;
    top: 0;
}
.left-submenu-item {
    font-size: 14px;
    padding: 15px 5px 15px 50px;
    line-height: 1.5;
    background-color: var(--inner-left-bgcolor);
    margin-bottom: 1px;
}
.left-submenu-item.active,
.left-submenu-item:hover {
    color: var(--primary-color);
}
.left-submenu-item > a {
    display: block;
}
.left-submenu-item:last-child {
    margin-bottom: 0;
}
.right-content {
    width: calc(100% - 275px);
    padding: 50px 0 100px 30px;
}
.right-list-item {
    width: 100%;
    background-color: #fff;
    border-radius: 5px;
    margin-bottom: 16px;
    opacity: 0;
}
.right-list-item:last-child {
    margin-bottom: 0;
}
.right-list-item:hover {
    box-shadow: 0 0 6px rgba(0, 0, 0, 0.1);
}
.right-list-item:hover .list-item-title {
    color: var(--primary-color);
}
.right-list-item:hover .list-item-image img {
    transform: scale(1.1);
}
.right-list-item > a {
    display: block;
    padding: 30px 0 30px 25px;
    display: flex;
}
.list-item-image {
    width: 240px;
    aspect-ratio: 5/3;
    margin-right: 30px;
    overflow: hidden;
}
.list-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.3s ease-in-out;
}
.list-item-infos {
    flex: 1;
    overflow: hidden;
}
.list-item-title {
    font-weight: normal;
    font-size: 18px;
    line-height: 1;
    padding-bottom: 20px;
    margin-bottom: 10px;
    border-bottom: 1px solid var(--primary-bdcolor);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.list-item-desc {
    font-size: 14px;
    line-height: 24px;
    color: var(--desc-text-color);
    height: 96px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    line-clamp: 4;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
}
.m-item-date {
    display: none;
}
.list-item-date {
    width: 158px;
    margin-left: 40px;
    border-left: 1px solid var(--primary-color);
    text-align: center;
    color: var(--primary-color);
    line-height: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    align-content: center;
}
.list-item-date .day {
    font-size: 40px;
}
.list-item-date .month {
    font-size: 18px;
}
.no-image a {
    align-items: center;
}
.no-image .list-item-title {
    border: none;
    padding: 0;
    margin: 0;
}
.no-image .list-item-date {
    line-height: 1;
}
.no-image .list-item-date .day {
    font-size: 30px;
}
.no-image .list-item-date .month {
    font-size: 16px;
}
.major-list {
    padding: 50px 60px;
    background-color: #fff;
    border-radius: 5px;
    box-shadow: 0 0 6px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-wrap: wrap;
    gap: 30px 60px;
    margin-bottom: 60px;
}
.major-item {
    flex: 0 0 calc(50% - 30px);
    border: 1px solid var(--primary-bdcolor);
    text-align: center;
    height: 88px;
    line-height: 88px;
    font-size: 18px;
    color: var(--main-text-color);
    opacity: 0;
}
.major-item a {
    display: block;
    width: 100%;
    height: 100%;
}
.major-item a::before {
    content: '';
    display: inline-block;
    width: 25px;
    height: 22px;
    background: url('../images/icon_major.png') no-repeat;
    vertical-align: middle;
    margin-right: 5px;
}
.major-item:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}
.teacher-list {
    display: flex;
    flex-wrap: wrap;
    gap: 50px;
}
.teacher-item {
    flex: 0 0 calc(50% - 25px);
    opacity: 0;
}
.teacher-item a {
    display: block;
    display: flex;
}
.teacher-image {
    width: 174px;
    aspect-ratio: 87/100;
    overflow: hidden;
}
.teacher-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.3s ease-in-out;
}
.teacher-image:hover img {
    transform: scale(1.1);
}
.teacher-infos {
    flex: 1;
}
.teacher-name {
    height: 62px;
    padding: 0 0 18px 24px;
    display: flex;
    align-items: flex-end;
}
.teacher-name h3 {
    font-size: 20px;
    color: var(--primary-color);
    margin-right: 10px;
}
.teacher-name p {
    font-size: 16px;
}
.teacher-desc {
    width: 100%;
    height: 138px;
    background-color: #fff;
    padding: 18px 0 0 24px;
    font-size: 14px;
    color: var(--desc-text-color);
    line-height: 30px;
}
.p_pages {
    display: flex;
    justify-content: center;
    padding-top: 48px;
    gap: 12px;
}
.p_pages a {
    display: block;
    width: 100%;
    height: 100%;
}
.p_first,
.p_first_d,
.p_last,
.p_last_d {
    display: none;
}
.p_prev,
.p_next {
    background-color: var(--section-bgcolor);
    border: 1px solid var(--primary-color);
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 36px;
    height: 36px;
    line-height: 36px;
    border-radius: 50%;
    font-size: 14px;
    overflow: hidden;
}
.p_prev::before,
.p_next::before {
    content: '';
    display: block;
    width: 18px;
    height: 1px;
    background-color: var(--primary-color);
    position: absolute;
    left: 8px;
    top: 19px;
}
.p_prev::after,
.p_next::after {
    content: '';
    height: 10px;
    width: 1px;
    background-color: var(--primary-color);
    position: absolute;
    top: 11px;
    right: 10px;
}
.p_prev::after {
    rotate: 45deg;
    left: 11px;
}
.p_next::after {
    rotate: -45deg;
    right: 11px;
}
.p_prev:hover,
.p_next:hover {
    background-color: var(--primary-color);
}
.p_prev:hover::before,
.p_prev:hover::after,
.p_next:hover::before,
.p_next:hover::after {
    background-color: #fff;
}
.p_prev_d,
.p_next_d {
    background-color: var(--section-bgcolor);
    border: 1px solid var(--primary-color);
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 36px;
    height: 36px;
    line-height: 36px;
    border-radius: 50%;
    font-size: 14px;
    cursor: not-allowed;
    border-color: var(--primary-bdcolor);
    background-color: var(--section-bgcolor);
}
.p_prev_d::before,
.p_next_d::before {
    content: '';
    display: block;
    width: 20px;
    height: 1px;
    background-color: #adadad;
    margin-top: 5px;
}
.p_prev_d::after,
.p_next_d::after {
    content: '';
    height: 10px;
    width: 1px;
    background-color: #adadad;
    position: absolute;
    top: 11px;
    right: 10px;
}
.p_prev_d::after {
    rotate: 45deg;
    left: 11px;
}
.p_next_d::after {
    rotate: -45deg;
    right: 11px;
}
.p_no {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 36px;
    height: 36px;
    line-height: 36px;
    border-radius: 50%;
    font-size: 14px;
    text-align: center;
}
.p_no_d {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 36px;
    height: 36px;
    line-height: 36px;
    border-radius: 50%;
    font-size: 14px;
    text-align: center;
    color: #fff;
    background-color: var(--primary-color);
}
.p_no:hover {
    color: #fff;
    background-color: var(--primary-color);
    opacity: 0.8;
}
.prev-page-btn,
.next-page-btn {
    background-color: var(--section-bgcolor);
    border: 1px solid var(--primary-color);
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}
.prev-page-btn:before,
.next-page-btn:before {
    content: '';
    display: block;
    width: 20px;
    height: 1px;
    background-color: var(--primary-color);
    margin-top: 5px;
}
.prev-page-btn:after,
.next-page-btn:after {
    content: '';
    height: 10px;
    width: 1px;
    background-color: var(--primary-color);
    position: absolute;
    top: 11px;
    right: 10px;
}
.prev-page-btn:after {
    rotate: 45deg;
    left: 11px;
}
.next-page-btn:after {
    rotate: -45deg;
    right: 11px;
}
.prev-page-btn:hover,
.next-page-btn:hover {
    background-color: var(--primary-color);
}
.prev-page-btn:hover::before,
.prev-page-btn:hover::after,
.next-page-btn:hover::before,
.next-page-btn:hover::after {
    background-color: #fff;
}
.prev-page-btn.disabled,
.prev-page-btn.disabled:hover,
.next-page-btn.disabled,
.next-page-btn.disabled.hover {
    cursor: not-allowed;
    border-color: var(--primary-bdcolor);
    background-color: var(--section-bgcolor);
}
.prev-page-btn.disabled::before,
.prev-page-btn.disabled::after,
.next-page-btn.disabled::before,
.next-page-btn.disabled::after {
    background-color: #adadad;
}
.page-btn.active {
    color: #fff;
    background-color: var(--primary-color);
}
.page-btn:hover {
    color: #fff;
    background-color: var(--primary-color);
    opacity: 0.8;
}
.right-article {
    background-color: #fff;
    padding: 30px;
}
.article-title {
    text-align: center;
    font-size: 24px;
    line-height: 1;
    margin: 48px 0 24px 0;
}
.single-article-title {
    font-size: 24px;
    line-height: 1;
    margin-bottom: 20px;
}
.article-info {
    text-align: center;
    font-size: 14px;
    color: var(--desc-text-color);
    padding-bottom: 30px;
    border-bottom: 1px solid #f4f4f4;
    margin-bottom: 20px;
}
.article-content img {
    display: initial;
}
.attachment-list {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid #f4f4f4;
}
.attachment-list::before {
    content: '附件下载：';
    display: block;
    margin-bottom: 10px;
    font-weight: bold;
}
.attachment-list li {
    font-size: 14px;
    line-height: 26px;
    margin-bottom: 10px;
}
.attachment-list a {
    text-decoration: underline;
    margin-right: 20px;
}
.attachment-list a:hover {
    color: var(--primary-color);
}
.attachment-list li > span {
    display: inline-block;
    padding-left: 16px;
    color: var(--desc-text-color);
    background: url('../images/icon_download.png') left center no-repeat;
}
@media screen and (max-width: 1366px) {
    .list-item-image {
        width: 180px;
    }
    .list-item-desc {
        height: 72px;
        line-clamp: 3;
        -webkit-line-clamp: 3;
    }
    .list-item-date {
        width: 120px;
    }
    .list-item-date .day {
        font-size: 30px;
    }
}
@media screen and (max-width: 1200px) {
    .left-nav {
        display: none;
    }
    .right-content {
        width: 100%;
        padding: 20px 0;
    }
}
@media screen and (max-width: 768px) {
    .right-list-item a {
        padding: 12px 10px;
    }
    .list-item-image {
        width: 120px;
        margin-right: 10px;
    }
    .list-item-title {
        height: 48px;
        font-size: 16px;
        line-height: 24px;
        padding-bottom: 12px;
        margin-bottom: 5px;
        border-bottom: none;
        display: -webkit-box;
        line-clamp: 2;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        white-space: normal;
    }
    .no-image .list-item-title {
        margin-bottom: 10px;
    }
    .list-item-desc {
        display: none;
        font-size: 14px;
        height: 40px;
        line-height: 20px;
        line-clamp: 2;
        -webkit-line-clamp: 2;
    }
    .m-item-date {
        display: block;
        font-size: 14px;
        line-height: 2;
        color: var(--desc-text-color);
    }
    .list-item-date {
        display: none;
    }
    .list-item-date .day {
        font-size: 30px;
    }
    .major-item {
        flex: 0 0 100%;
        font-size: 14px;
        height: 60px;
        line-height: 60px;
    }
    .teacher-item {
        flex: 0 0 100%;
    }
    .teacher-image {
        width: 100px;
    }
    .teacher-desc {
        height: 80px;
        padding: 10px 0 0 10px;
        font-size: 12px;
    }
    .right-article {
        padding: 20px;
    }
    .article-title {
        font-size: 18px;
        line-height: 1.2;
        margin-top: 0;
    }
    .single-article-title {
        font-size: 18px;
    }
    .p_pages {
        padding-top: 20px;
    }
    .p_no:nth-child(4),
    .p_no:nth-child(5) {
        display: none;
    }
}