.swiper-wrapper{
  height: 35vh !important;
}
:root {
    --banner-height: 100vh;
}
.banner
{
    position: relative !important;
}
.banner a{
    display: block;
    position: relative;
    height: var(--banner-height);
    overflow: hidden;
}

.banner a .slideImg {
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    background-position: 50%;
    background-size: cover;
    background-repeat: no-repeat;
    transform: scale(1.175);
    transition: 6s;
}
.banner .slideImg {
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    background-position: 50%;
    background-size: cover;
    background-repeat: no-repeat;
    transform: scale(1.175);
    transition: 6s;
}
.banner .swiper-slide-active a .slideImg{
    transform: scale(1);
}

.banner .page
{
    font-size: 0;
    bottom: 45px !important;
    left: unset !important;
    width: 20% !important;
    right: 100px !important;
}
.banner .page span
{
    width: 15px;
    height: 15px;
    font-size: 20px;
    background: rgba(255, 255, 255, 0.6);
    line-height: 1;
    font-weight: 700;
    border-radius:10px;
    opacity: 1;
    margin: 0 8px;
}
.banner .page span.active
{
    background: #ffffff;
}

.testimonials .item {
    height: 280px;
}

.testimonials .item .info {
    height: 100%;
}

.testimonials .item .full-width {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.testimonials .item .full-width p {
    height: 100px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    margin-bottom: 15px;
}


 :root {
     --primary: #1a56db;
     --secondary: #1e429f;
     --gray-50: #f9fafb;
     --gray-100: #f3f4f6;
     --gray-200: #e5e7eb;
     --gray-300: #d1d5db;
     --gray-400: #9ca3af;
     --gray-500: #6b7280;
     --gray-600: #4b5563;
     --gray-700: #374151;
     --gray-800: #1f2937;
     --gray-900: #111827;
 }

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--gray-50);
    color: var(--gray-800);
    line-height: 1.5;
}

.container {
    width: 100%;
    max-width: 1220px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
header {
    background-color: white;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
}

.header-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 16px 20px;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-800);
    text-decoration: none;
}

.nav-links {
    display: none;
}

.nav-links a {
    color: var(--gray-600);
    text-decoration: none;
    margin-left: 32px;
    font-weight: 500;
}

.nav-links a:hover {
    color: var(--primary);
}

.mobile-menu-btn {
    color: var(--gray-600);
    background: none;
    border: none;
    cursor: pointer;
}

/* Main Content Styles */
main {
    padding: 48px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h1 {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 16px;
}

.section-header p {
    font-size: 1.25rem;
    color: var(--gray-600);
    max-width: 768px;
    margin: 0 auto;
}

/* Research Cards */
.research-cards {
    display: flex;
    flex-direction: column;
    gap: 48px;
}

.research-card {
    background-color: white;
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    overflow: hidden;
}

.card-content {
    display: flex;
    flex-direction: column;
}

.card-image {
    width: 100%;
    height: 300px;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.card-details {
    padding: 32px;
}

.card-category {
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.875rem;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 4px;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.card-meta {
    display: flex;
    align-items: center;
    color: var(--gray-500);
    margin-bottom: 16px;
    font-size: 0.875rem;
}

.card-meta svg {
    width: 20px;
    height: 20px;
    margin-right: 4px;
}

.card-meta .location {
    margin-left: 12px;
}

.card-description {
    color: var(--gray-600);
    line-height: 1.625;
}


 /* index.css */



/* ================================================================ */
/* ==  移动端适配：科研进展区域 (Research Progress Section)  == */
/* ================================================================ */

/*@media (max-width: 767px) { !* 使用 767px 作为移动端断点 *!*/

/*    !* 1. 调整 .row 的布局方向 *!*/
/*    !* ------------------------------------ *!*/
/*    !* 使其子元素 (轮播图容器和卡片组容器) 垂直堆叠   *!*/
/*    .research-progress-section .container .row {*/
/*        display: flex; !* 确保 .row 是 flex 容器 *!*/
/*        flex-direction: column; !* 关键：将主轴方向改为垂直 *!*/
/*        align-items: stretch; !* 使子项在交叉轴上拉伸以占据全部宽度 (如果它们没有设置宽度) *!*/
/*    }*/

/*    !* 2. 轮播图容器 (.research-image-container) 样式 *!*/
/*    !* --------------------------------------------------- *!*/
/*    !* 占据整行宽度，并具有固定高度                   *!*/
/*    .research-image-container {*/
/*        width: 100% !important;   !* 强制宽度为100%，覆盖 col-md-6 等桌面端样式 *!*/
/*        flex-basis: 300px; !* 当父元素 flex-direction: column 时，这代表高度 *!*/
/*        flex-grow: 0;       !* 不允许放大 *!*/
/*        flex-shrink: 0;     !* 不允许缩小 *!*/
/*        max-width: 100%;    !* 确保不会超出屏幕宽度 *!*/
/*        margin-bottom: 20px; !* 在轮播图和下面的卡片组之间添加一些间距 *!*/
/*        !* 如果 .row 使用了负 margin 来创建 gutter，这里的 padding 可能需要调整 *!*/
/*        !* 例如：padding-left: 0; padding-right: 0; (如果父级 .row 有负边距) *!*/
/*        !* 或者与 .col-xs-12 的默认 padding 保持一致 (通常是 15px) *!*/
/*        padding-left: 15px;*/
/*        padding-right: 15px;*/
/*    }*/

/*    !* 确保轮播图内部元素充满其容器的高度 *!*/
/*    .research-image-container .research-carousel,*/
/*    .research-image-container .carousel-item {*/
/*        height:200px; !* 填充 .research-image-container 的 300px 高度 *!*/
/*    }*/

/*    .research-image-container .carousel-item img {*/
/*        height: 100%; !* 图片也填充整个高度 *!*/
/*        object-fit: cover; !* 确保图片覆盖整个区域，可能会裁剪 *!*/
/*    }*/


/*    !* 3. 卡片组容器 (.research-cards-container) 样式 *!*/
/*    !* --------------------------------------------------- *!*/
/*    !* 占据整行宽度，高度由内容决定                  *!*/
/*    .research-cards-container {*/
/*        width: 100% !important;   !* 强制宽度为100% *!*/
/*        flex: 1 1 auto;   !* 允许放大和缩小，高度基于内容 (auto) *!*/
/*        max-width: 100%;    !* 确保不会超出屏幕宽度 *!*/
/*        !* 与 .research-image-container 保持一致的 padding *!*/
/*        padding-left: 15px;*/
/*        padding-right: 15px;*/
/*        !* 原有的 overflow-y: auto; 属性很好，当卡片内容过多时可以滚动 *!*/
/*    }*/

/*    !* 4. 单个卡片 (.research-card) 的样式 *!*/
/*    !* ------------------------------------------ *!*/
/*    !* 默认情况下，块级元素 (如 div) 会占据其父容器的全部可用宽度。 *!*/
/*    !* 因此，如果 .research-cards-container 已经是 100% 宽度， *!*/
/*    !* 那么 .research-card 不需要额外的宽度设置就会自动占满一行。 *!*/
/*    !* 你现有的 .research-card 样式 (如 padding, background-color) 可以保留。*!*/


/*    !* 5. 其他通用移动端调整 (基于你原始 CSS 的例子) *!*/
/*    !* --------------------------------------------------- *!*/

/*    !* 调整其他非科研进展区域的卡片布局 (如果需要)   *!*/
/*    !* 这些类名似乎指向你 CSS 文件中较早定义的通用卡片样式 *!*/
/*    .card-content { !* 假设这是通用卡片的 flex 容器 *!*/
/*        flex-direction: column; !* 在移动端垂直堆叠内容 *!*/
/*    }*/

/*    .card-image { !* 通用卡片的图片 *!*/
/*        width: 100%;   !* 图片宽度占满 *!*/
/*        height: auto;  !* 高度自适应，或者可以设置一个固定值如 200px *!*/
/*    }*/

/*    .card-details { !* 通用卡片的详情部分 *!*/
/*        width: 100%;   !* 详情宽度占满 *!*/
/*    }*/

/*    !* 确保导航链接在移动端按预期显示/隐藏 (这些规则已存在于你的CSS中) *!*/
/*    .nav-links {*/
/*        display: none; !* 隐藏桌面导航链接 *!*/
/*    }*/

/*    .mobile-menu-btn {*/
/*        display: block; !* 或 flex, 根据按钮的样式需求 *!*/
/*    }*/

/*    !* 页脚网格调整为单列 (此规则已存在于你的CSS中) *!*/
/*    .footer-grid {*/
/*        grid-template-columns: 1fr; !* 页脚内容变为单列布局 *!*/
/*    }*/
/*}*/

/* ... (你现有的其他 CSS 代码，确保没有多余的 }) ... */

 .navbar .navbar-nav .active:after {
     content: '';
     position: absolute;
     bottom: 0px;
     left: 50%;
     transform: translateX(-50%);
     width: 30px;
     height: 2px;
     background-color: rgb(255, 255, 255);
 }



 .research-progress-section {
     padding-top: 60px;
     display: flex;
     min-height: 500px; /* Minimum height to ensure content visibility */
     width: 100%; /* Take full available width */
     margin: 20px auto; /* Center the section */
     background-color: #fff; /* White background for the section */
     /*  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1); Subtle shadow */
     overflow: hidden; /* Ensure content stays within bounds */
     position: relative; /* For absolute positioning of children if needed */
 }

.research-image-container {
    flex: 0 0 45%; /* Takes up 50% of the width, can grow but not shrink */
    position: relative; /* For positioning the image within */
    min-height: 100%; /* Ensure full height */
    overflow: hidden; /* 确保内容不溢出 */
}

#research-image,
#research-image-second,
.research-image {

    border-radius: 20px;
    position: absolute; /* Position absolutely within the container */
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover; /* Cover the area, crop if needed */
    object-position: center; /* Center the image */
    transition: opacity 0.5s ease; /* 平滑过渡效果 */
    z-index: 1; /* 确保图片层叠顺序 */
}

.research-cards-container {
    justify-content: center;

    flex: 1; /* Takes remaining space */
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 15px; /* Consistent spacing between cards */
    overflow-y: auto; /* Add scroll if content overflows height */
}

.research-card {
    padding: 15px;
    background-color: #f9f9f9; /* Light background for cards */
    border-left: 4px solid #e0e0e0; /* Subtle left border */
    cursor: pointer;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}
.research-card a
{
    display:block;
}
.research-card:hover {
    background-color: #eef5ff; /* Highlight background on hover */
    border-left-color: #0056b3; /* Highlight border on hover */
}


.card-title {
    font-size: 1.1em;
    font-weight: bold;
    color: #333;
    margin-bottom: 5px;
}

.card-meta {
    font-size: 0.8em;
    color: #666;
    margin-bottom: 8px;
}

.card-meta .card-date {
    margin-right: 10px;
}

.card-location {
    /* font-style: italic; */
}

.card-description {
    font-size: 0.9em;
    color: #555;
    line-height: 1.4;

}

 
 .research-image-container {
     position: relative;
     width: 40%;
     height: 484px;
     overflow: hidden;
     margin-top: 20px;
 }

.research-carousel {
    position: relative;
    width: 100%;
    height: 100%;
}

.carousel-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s ease-in-out;
}
.carousel-item:hover a .itemsa .itema
{
    -webkit-transform: scale(1.1);
    -ms-transform: scale(1.1);
    transform: scale(1.1);
}
.carousel-item a
{
    display:block;
    width:100%;
    height:100%;
    position: relative;
}
.carousel-item a .carousel-item-img
{
    height:485px;
}
.carousel-item.active {
    opacity: 1;
}
.carousel-item a .carousel-item-txt
{
    position:absolute;
    bottom: 0;
    width:100%;
    height: 50px;
    line-height: 50px;
    color:#ffffff;
    padding:0 30px;
    background: #212529b8;
    margin: 0;
    text-align: center;
}
.carousel-item img {
    width: 100%;
    height: 100%;
    border-radius: 15px;
    object-fit: cover;
}

.carousel-control {
    position: absolute;
    top: 40%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    padding: 15px;
    cursor: pointer;
    font-size: 18px;
    z-index: 2;
    transition: background 0.3s;
}

.carousel-control:hover {
    background: rgba(0, 0, 0, 0.8);
}

.carousel-control.prev {
    left: 10px;
}

.carousel-control.next {
    right: 10px;
}

.carousel-indicators {
    position: absolute;
    bottom: 40px;
    left: 35%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 2;
    /* display: none; */
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: background 0.3s;
}

.indicator.active {
    background: white;
}