/* 科研进展列表页 - 复用 news 布局，覆盖为「日期 + 文本」卡片样式 */

.research-page {
    background: #fff;
}

/* ========== 侧栏菜单：文字居中 ========== */
.research-page .sidebar-menu-item > a {
    padding: 0 16px;
    text-align: center;
}

/* ========== 栏目标题与列表间距（依设计稿） ========== */
.research-page .news-content-head {
    margin-bottom: 25px;
}

/* ========== 科研进展列表 ========== */
.research-list {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.research-card {
    display: block;
    position: relative;
    height: 216px;
    background: #f6f8fa;
    padding: 28px 40px 0 164px;
    overflow: hidden;
}

/* 左侧日期块 */
.research-card-date {
    position: absolute;
    left: 44px;
    top: 30px;
}

.research-card-day {
    display: block;
    font-size: 30px;
    line-height: 1.1;
    font-weight: 400;
    color: var(--text-main);
}

.research-card-year {
    display: block;
    margin-top: 12px;
    font-size: 15px;
    line-height: 1.2;
    color: #54616d;
}

/* 右侧正文 */
.research-card-title {
    display: block;
    font-size: 26px;
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-main);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.research-card-title:hover {
    color: var(--primary-blue);
}

.research-card-desc {
    margin-top: 18px;
    font-size: 16px;
    line-height: 32px;
    color: #54616d;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 2;
    overflow: hidden;
}

.research-card-more {
    margin-top: 22px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 15px;
    color: #7593b4;
}

.research-card-more:hover {
    color: var(--primary-blue);
}

/* ========== 悬停态：整卡蓝底白字（设计稿首条展示的是 hover 效果，仅桌面端） ========== */
@media (hover: hover) {
    .research-card:hover {
        background: var(--primary-blue);
    }

    .research-card:hover .research-card-day {
        color: #fff;
    }

    .research-card:hover .research-card-year {
        color: #d1e1f1;
    }

    .research-card:hover .research-card-title {
        color: #fff;
    }

    .research-card:hover .research-card-title:hover {
        color: #fff;
        opacity: 0.9;
    }

    .research-card:hover .research-card-desc {
        color: #d1e1f1;
    }

    .research-card:hover .research-card-more {
        color: #fff;
    }

    .research-card:hover .research-card-more:hover {
        color: #fff;
        opacity: 0.85;
    }
}

/* ========== 移动端兜底 ========== */
@media (max-width: 1024px) {
    .research-card {
        height: auto;
        padding: 18px 18px 22px 18px;
    }

    .research-card-date {
        position: static;
        display: flex;
        align-items: baseline;
        gap: 8px;
        margin-bottom: 10px;
    }

    .research-card-day {
        font-size: 24px;
        line-height: 1;
    }

    .research-card-year {
        margin-top: 0;
        font-size: 13px;
        line-height: 1;
    }

    .research-card-title {
        font-size: 18px;
        white-space: normal;
        line-height: 1.4;
    }

    .research-card-desc {
        margin-top: 10px;
        font-size: 14px;
        line-height: 24px;
    }

    .research-card-more {
        margin-top: 14px;
    }
}