:root {
    --fudan-red: #2C5AA0;
    --fudan-dark-red: #1E3F73;
}
a {
    text-decoration: none;
}
body {
    font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
}

/* 顶部导航样式 */
.top-navbar {
    background-color: var(--fudan-red);
    color: white;
    padding: 10px 0;
}

.fudan-logo-img {
    height: 105px;
    width: auto;
    max-width: 800px;
}

.lang-links a {
    color: white;
    text-decoration: none;
    margin: 0 5px;
    font-size: 14px;
}

.lang-links a:hover {
    text-decoration: underline;
}

/* 主导航样式 */
.main-navbar {
    background: linear-gradient(135deg, var(--fudan-dark-red) 0%, var(--fudan-red) 100%);
    padding: 0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    position: relative;
    z-index: 1000;
    transition: all 0.3s ease;
}

/* 固定导航栏样式 */
.main-navbar.sticky {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1050;
    background: linear-gradient(135deg, rgba(30, 63, 115, 0.95) 0%, rgba(44, 90, 160, 0.95) 100%);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 20px rgba(0,0,0,0.25);
    animation: slideDownSticky 0.3s ease-out;
}

@keyframes slideDownSticky {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* 页面内容偏移，避免被固定导航栏遮挡 */
body.navbar-sticky {
    padding-top: 70px;
}

/* 固定导航栏的响应式样式 */
@media (max-width: 992px) {
    body.navbar-sticky {
        padding-top: 80px;
    }
    
    .main-navbar.sticky {
        background: linear-gradient(135deg, rgba(30, 63, 115, 0.98) 0%, rgba(44, 90, 160, 0.98) 100%);
    }
}

@media (max-width: 768px) {
    body.navbar-sticky {
        padding-top: 70px;
    }
    
    .main-navbar.sticky .navbar-collapse {
        background: rgba(30, 63, 115, 0.98);
        backdrop-filter: blur(15px);
        border-radius: 8px;
        margin-top: 10px;
    }
}

@media (max-width: 576px) {
    body.navbar-sticky {
        padding-top: 65px;
    }
}

.navbar-toggler {
    border: none;
    padding: 8px 12px;
    background-color: rgba(255,255,255,0.1);
    border-radius: 6px;
}

.navbar-toggler:focus {
    box-shadow: none;
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 1%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    width: 24px;
    height: 24px;
}

.main-navbar .nav-link {
    color: white;
    padding: 16px 12px;
    font-size: 16px;
    font-weight: 600;
    position: relative;
    transition: all 0.3s ease;
    border-radius: 0;
    white-space: nowrap;
}

.main-navbar .nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, #4FC3F7, #29B6F6);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.main-navbar .nav-link:hover {
    background-color: rgba(255,255,255,0.15);
    color: white;
    transform: translateY(-2px);
}

.main-navbar .nav-link:hover::before {
    width: 80%;
}

/* 二级导航样式 */
.dropdown-menu {
    background: linear-gradient(135deg, rgba(44, 90, 160, 0.95) 0%, rgba(30, 63, 115, 0.95) 100%);
    border: none;
    border-radius: 8px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.25);
    margin-top: 0;
    padding: 8px 0;
    backdrop-filter: blur(10px);
}

.dropdown-item {
    color: white;
    padding: 10px 20px;
    font-size: 14px;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.dropdown-item:hover {
    background-color: rgba(255,255,255,0.15);
    color: white;
    border-left-color: #4FC3F7;
    padding-left: 25px;
}

.dropdown-divider {
    border-color: rgba(255,255,255,0.2);
    margin: 8px 0;
}

/* 特色菜单项 */
.nav-item.special .nav-link {
    background: linear-gradient(135deg, #4FC3F7, #29B6F6);
    color: var(--fudan-dark-red);
    font-weight: 600;
    border-radius: 25px;
    margin: 8px 0;
    padding: 12px 14px;
    box-shadow: 0 4px 15px rgba(79, 195, 247, 0.3);
    white-space: nowrap;
}

.nav-item.special .nav-link:hover {
    background: linear-gradient(135deg, #29B6F6, #4FC3F7);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(79, 195, 247, 0.4);
}

.nav-item.special .nav-link::before {
    display: none;
}

/* 轮播图样式 */
.hero-section {
    position: relative;
    height: 600px;
    overflow: hidden;
}

.carousel-item {
    height: 600px;
}

.carousel-item img {
    width: 100%;
    height: 100%;
    object-fit: fill;
}

.carousel-caption {
    background: none;
    padding: 20px;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 90%;
    max-width: 1000px;
    text-align: center;
}

.carousel-caption .banner-title {
    text-shadow: 2px 2px 4px rgba(0,0,0,0.8);
    margin-bottom: 20px;
    font-size: 2.2rem;
    font-weight: 600;
    line-height: 1.2;
}

.carousel-caption .simple-text {
    background: none !important;
    padding: 0 !important;
    border-radius: 0 !important;
}

.carousel-caption .detailed-content {
    background: rgba(0,0,0,0.7);
    padding: 25px;
    border-radius: 15px;
    margin-top: 20px;
    backdrop-filter: blur(5px);
}

.search-icon {
    position: absolute;
    top: 30px;
    right: 30px;
    width: 20px;
    height: 20px;
    cursor: pointer;
    opacity: 0.9;
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.search-icon:hover {
    opacity: 1;
    transform: scale(1.1);
}

/* 搜索框样式 */
.search-box {
    position: absolute;
    top: 60px;
    right: 0;
    width: 350px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    padding: 20px;
    display: none;
    z-index: 1001;
    border: 1px solid #e0e0e0;
}

.search-box.show {
    display: block;
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.search-input-container {
    display: flex;
    gap: 10px;
    align-items: center;
}

.search-input {
    flex: 1;
    padding: 10px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 25px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.3s ease;
}

.search-input:focus {
    border-color: var(--fudan-red);
}

.search-btn {
    background: linear-gradient(135deg, var(--fudan-red), var(--fudan-dark-red));
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 25px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.search-btn:hover {
    background: linear-gradient(135deg, var(--fudan-dark-red), var(--fudan-red));
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(44, 90, 160, 0.3);
}

.search-close {
    background: #f8f9fa;
    color: #666;
    border: none;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.search-close:hover {
    background: #e9ecef;
    color: #333;
}

/* 响应式搜索框 */
@media (max-width: 768px) {
    .search-box {
        width: calc(100vw - 40px);
        max-width: 320px;
        right: 20px;
        left: auto;
        padding: 15px;
    }
    
    .search-input {
        font-size: 13px;
        padding: 8px 12px;
    }
    
    .search-btn {
        padding: 8px 15px;
        font-size: 13px;
    }
    
    .search-input-container {
        flex-direction: column;
        gap: 12px;
    }
    
    .search-input {
        width: 100%;
    }
    
    .search-btn {
        width: 100%;
        justify-self: stretch;
    }
}

@media (max-width: 480px) {
    .search-box {
        width: calc(100vw - 30px);
        right: 15px;
        padding: 12px;
    }
    
    .search-input-container {
        gap: 10px;
    }
    
    .search-input {
        padding: 10px 12px;
    }
    
    .search-btn {
        padding: 10px 15px;
    }
}

@media (max-width: 360px) {
    .search-box {
        width: calc(100vw - 20px);
        right: 10px;
    }
}

/* PC端导航居中对齐 */
@media (min-width: 992px) {
    .main-navbar .navbar-nav {
        justify-content: center;
        width: 100%;
        flex-wrap: nowrap; /* 防止换行 */
    }
    
    .main-navbar .nav-item {
        margin: 0 8px;
        flex-shrink: 0; /* 防止收缩 */
    }
}

/* 中等屏幕优化 */
@media (min-width: 1100px) and (max-width: 1199px) {
    .main-navbar .nav-item {
        margin: 0 6px; /* 中等屏幕减小间距 */
    }
    
    .main-navbar .nav-link {
        padding: 16px 10px;
        font-size: 15px;
    }
    
    .nav-item.special .nav-link {
        padding: 12px 12px;
    }
}

/* 大屏幕优化 */
@media (min-width: 1200px) {
    .main-navbar .nav-item {
        margin: 0 12px; /* 大屏幕可以稍微增加间距 */
    }
    
    .main-navbar .nav-link {
        padding: 16px 16px; /* 大屏幕增加内边距 */
        font-size: 17px; /* 大屏幕稍微增加字体 */
    }
}

/* 超大屏幕优化 */
@media (min-width: 1400px) {
    .main-navbar .nav-item {
        margin: 0 15px; /* 超大屏幕可以使用原来的间距 */
    }
    
    .main-navbar .nav-link {
        padding: 16px 18px;
        font-size: 18px;
    }
    
    /* 超大屏幕特殊菜单项优化 */
    .nav-item.special .nav-link {
        padding: 12px 18px;
    }
}

@media (max-width: 992px) {
    .main-navbar .navbar-collapse {
        background: rgba(30, 63, 115, 0.95);
        margin-top: 10px;
        border-radius: 8px;
        padding: 10px;
        backdrop-filter: blur(10px);
    }
    
    .main-navbar .nav-link {
        border-radius: 5px;
        margin: 2px 0;
    }
    
    .main-navbar .navbar-nav {
        justify-content: flex-start;
    }
}

@media (max-width: 768px) {
    .search-icon{
        top: 20px;
    }
    .fudan-logo-img {
        height: 55px;
    }
    
    .lang-links {
        font-size: 12px;
    }
    
    .main-navbar .nav-link {
        padding: 12px 15px;
        font-size: 14px;
    }
    
    .hero-section {
        height: 200px;
    }

    .carousel-item {
        height: 200px;
    }
    
    .carousel-caption .banner-title {
        font-size: 1.8rem;
    }
    
    .carousel-caption {
        bottom: 15px;
        width: 95%;
    }
    
    .dropdown-menu {
        position: static !important;
        float: none;
        width: 100%;
        margin-top: 5px;
        border-radius: 5px;
    }
}

@media (max-width: 576px) {
    .carousel-caption .banner-title {
        font-size: 1.4rem;
    }
    
    .fudan-logo-img {
        height: 50px;
    }
    
    .carousel-caption .detailed-content {
        padding: 15px;
        font-size: 14px;
    }
    
    .main-navbar .nav-link {
        text-align: center;
    }
}

/* 学院新闻板块样式 */
.news-section {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--fudan-dark-red);
    margin-bottom: 10px;
}

.title-divider {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--fudan-red), #4FC3F7);
    margin: 0 auto;
    border-radius: 2px;
}

/* 主要新闻卡片 */
.main-news-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    height: 100%;
}

.main-news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.news-image-container {
    position: relative;
    height: 400px;
    overflow: hidden;
}

.main-news-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.main-news-card:hover .main-news-image {
    transform: scale(1.05);
}

.news-date-badge {
    position: absolute;
    bottom: 20px;
    left: 20px;
    background: var(--fudan-red);
    color: white;
    padding: 10px 15px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(44, 90, 160, 0.3);
}

.date-day {
    font-size: 24px;
    font-weight: 700;
    line-height: 1;
}

.date-month {
    font-size: 12px;
    opacity: 0.9;
}

.main-news-content {
    padding: 30px 25px 25px 25px;
}

.main-news-title {
    font-size: 2rem;
    font-weight: 700;
    color: #333;
    margin-bottom: 15px;
    line-height: 1.3;
}

.main-news-desc {
    color: #666;
    font-size: 1.1rem;
    margin-bottom: 0;
    line-height: 1.6;
}

/* 右侧新闻列表 */
.news-list {
    background: white;
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

.news-list-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--fudan-dark-red);
}

.more-link {
    color: var(--fudan-red);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.more-link:hover {
    color: var(--fudan-dark-red);
    text-decoration: underline;
}

.news-item {
    display: flex;
    align-items: flex-start;
    padding: 15px;
    border-bottom: 1px solid #f0f0f0;
    transition: all 0.3s ease;
    cursor: pointer;
    border-radius: 8px;
    margin-bottom: 5px;
}

.news-item:hover {
    background: linear-gradient(135deg, var(--fudan-red), var(--fudan-dark-red));
    color: white;
    box-shadow: 0 8px 25px rgba(44, 90, 160, 0.3);
    transform: translateY(-2px);
}

.news-item:last-child {
    border-bottom: none;
}

.news-bullet {
    width: 8px;
    height: 8px;
    background: var(--fudan-red);
    border-radius: 50%;
    margin-top: 8px;
    margin-right: 15px;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.news-item:hover .news-bullet {
    background: white;
    transform: scale(1.3);
}

.news-content {
    flex: 1;
}

.news-title {
    font-size: 1rem;
    font-weight: 500;
    color: #333;
    margin-bottom: 8px;
    line-height: 1.4;
    transition: color 0.3s ease;
}

.news-item:hover .news-title {
    color: white;
}

.news-date {
    font-size: 12px;
    color: #888;
    font-weight: 400;
    transition: color 0.3s ease;
}

.news-item:hover .news-date {
    color: rgba(255,255,255,0.8);
}

/* 特色新闻卡片 */
.featured-news-card {
    background: linear-gradient(135deg, var(--fudan-red), var(--fudan-dark-red));
    color: white;
    border-radius: 15px;
    padding: 25px;
    display: flex;
    align-items: center;
    box-shadow: 0 8px 25px rgba(44, 90, 160, 0.3);
    transition: transform 0.3s ease;
}

.featured-news-card:hover {
    transform: translateY(-3px);
}

.featured-news-number {
    font-size: 3rem;
    font-weight: 700;
    margin-right: 20px;
    opacity: 0.8;
    line-height: 1;
}

.featured-news-content {
    flex: 1;
}

.featured-date {
    font-size: 14px;
    opacity: 0.8;
    margin-bottom: 8px;
}

.featured-title {
    font-size: 1.1rem;
    font-weight: 600;
    line-height: 1.3;
    margin: 0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .section-title {
        font-size: 2rem;
    }
    
    .main-news-content {
        padding: 20px;
    }
    
    .main-news-title {
        font-size: 1.6rem;
    }
    
    .main-news-desc {
        font-size: 1rem;
    }
    
    .news-list {
        padding: 20px;
    }
    
    .news-image-container {
        height: 300px;
    }
    
    .featured-news-number {
        font-size: 2.5rem;
        margin-right: 15px;
    }
}

/* 通知公告板块样式 */
.notice-section {
    background: white;
}

.notice-container {
    border-radius: 15px;
}

.notice-item {
    display: flex;
    align-items: center;
    padding: 20px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 3px 15px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    cursor: pointer;
    border: 1px solid #f0f0f0;
    height: 100%;
}

.notice-item:hover {
    background: linear-gradient(135deg, var(--fudan-red), var(--fudan-dark-red));
    color: white;
    box-shadow: 0 8px 25px rgba(44, 90, 160, 0.3);
    transform: translateY(-3px);
    border-color: transparent;
}

.notice-date-box {
    border-radius: 10px;
    padding: 15px 20px;
    text-align: center;
    margin-right: 20px;
    min-width: 80px;
    transition: all 0.3s ease;
}

.notice-item:hover .notice-date-box {
    background: white;
    color: var(--fudan-red);
    border-color: white;
}

.notice-day {
    font-size: 2rem;
    font-weight: 700;
    color: var(--fudan-red);
    line-height: 1;
    margin-bottom: 5px;
}

.notice-item:hover .notice-day {
    color: var(--fudan-red);
}

.notice-month {
    font-size: 0.85rem;
    color: #666;
    font-weight: 500;
}

.notice-item:hover .notice-month {
    color: var(--fudan-red);
}

.notice-content {
    flex: 1;
}

.notice-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #333;
    margin: 0;
    line-height: 1.4;
    transition: color 0.3s ease;
}

.notice-item:hover .notice-title {
    color: white;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .notice-container {
        padding: 20px;
    }
    
    .notice-item {
        padding: 15px;
        flex-direction: column;
        text-align: center;
    }
    
    .notice-date-box {
        margin-right: 0;
        margin-bottom: 15px;
        min-width: auto;
        width: 100px;
    }
    
    .notice-day {
        font-size: 1.8rem;
    }
    
    .notice-title {
        font-size: 1rem;
    }
}

@media (max-width: 576px) {
    .notice-item {
        margin-bottom: 15px;
    }
    
    .notice-title {
        font-size: 0.95rem;
    }
}

/* 党群工作和教学科研板块样式 */
.dual-section {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.section-card {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.section-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.12);
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid #f0f0f0;
}

.section-card-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--fudan-dark-red);
    margin: 0;
    position: relative;
}


/* 党群工作样式 */
.party-work-item {
    padding: 18px 0;
    border-bottom: 1px solid #f0f0f0;
    transition: all 0.3s ease;
    cursor: pointer;
    border-radius: 8px;
    margin-bottom: 5px;
}

.party-work-item:hover {
    background: linear-gradient(135deg, var(--fudan-red), var(--fudan-dark-red));
    color: white;
    padding: 18px 20px;
    box-shadow: 0 5px 15px rgba(44, 90, 160, 0.2);
    transform: translateX(5px);
}

.party-work-item:last-child {
    border-bottom: none;
}

.party-work-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 5px;
    line-height: 1.4;
    transition: color 0.3s ease;
}

.party-work-item:hover .party-work-title {
    color: white;
}

.party-work-meta {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    margin-top: 8px;
}

.party-work-date {
    font-size: 0.9rem;
    color: #888;
    transition: color 0.3s ease;
}

.party-work-item:hover .party-work-date {
    color: rgba(255,255,255,0.8);
}

.party-work-category {
    background: linear-gradient(135deg, #4FC3F7, #29B6F6);
    color: var(--fudan-dark-red);
    padding: 4px 10px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.party-work-item:hover .party-work-category {
    background: white;
    color: var(--fudan-red);
}

/* 教学科研样式 */
.research-item {
    display: flex;
    align-items: center;
    padding: 15px 0;
    border-bottom: 1px solid #f0f0f0;
    transition: all 0.3s ease;
    cursor: pointer;
    border-radius: 8px;
    margin-bottom: 5px;
}

.research-item:hover {
    background: linear-gradient(135deg, var(--fudan-red), var(--fudan-dark-red));
    color: white;
    padding: 15px 20px;
    box-shadow: 0 5px 15px rgba(44, 90, 160, 0.2);
    transform: translateX(5px);
}

.research-item:last-child {
    border-bottom: none;
}

.research-image {
    width: 80px;
    height: 60px;
    border-radius: 8px;
    overflow: hidden;
    margin-right: 15px;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.research-item:hover .research-image {
    transform: scale(1.05);
}

.research-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.research-content {
    flex: 1;
}

.research-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
    line-height: 1.4;
    transition: color 0.3s ease;
}

.research-item:hover .research-title {
    color: white;
}

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

.research-date {
    font-size: 0.9rem;
    color: #888;
    transition: color 0.3s ease;
}

.research-item:hover .research-date {
    color: rgba(255,255,255,0.8);
}

.research-category {
    background: linear-gradient(135deg, #4FC3F7, #29B6F6);
    color: var(--fudan-dark-red);
    padding: 4px 10px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

.research-item:hover .research-category {
    background: white;
    color: var(--fudan-red);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .section-card {
        padding: 20px;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    
    
    .research-image {
        width: 60px;
        height: 45px;
        margin-right: 12px;
    }
    
    .research-title,
    .party-work-title {
        font-size: 1rem;
    }
}

@media (max-width: 576px) {
    .section-card-title {
        font-size: 1.5rem;
    }
    
    .party-work-meta,
    .research-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
}

/* 学术公告板块样式 */
.academic-section {
    background: white;
}

.academic-container {
    background: white;
    border-radius: 15px;
    padding: 30px;
}

.academic-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    cursor: pointer;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.academic-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(139, 38, 53, 0.15);
}

.academic-image {
    position: relative;
    height: 200px;
    overflow: hidden;
}

.academic-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.academic-card:hover .academic-img {
    transform: scale(1.1);
}

.academic-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(0,0,0,0.2) 0%, transparent 50%);
    transition: background 0.3s ease;
}

.academic-card:hover .academic-overlay {
    background: linear-gradient(45deg, rgba(139, 38, 53, 0.3) 0%, transparent 70%);
}

.academic-date-badge {
    position: absolute;
    top: 20px;
    left: 20px;
    background: linear-gradient(135deg, var(--fudan-red), var(--fudan-dark-red));
    color: white;
    padding: 0;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(44, 90, 160, 0.3);
    transition: all 0.3s ease;
    min-width: 60px;
    overflow: hidden;
}

.academic-card:hover .academic-date-badge {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 6px 20px rgba(139, 38, 53, 0.4);
}

.academic-day {
    display: block;
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 1;
    padding: 12px 8px 5px 8px;
    background: rgba(255,255,255,0.1);
}

.academic-month {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 5px 8px 8px 8px;
    background: rgba(255,255,255,0.05);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.academic-content {
    padding: 25px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.academic-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 12px;
    line-height: 1.4;
    transition: color 0.3s ease;
}

.academic-card:hover .academic-title {
    color: var(--fudan-red);
}

.academic-excerpt {
    color: #666;
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 20px;
    flex: 1;
}

.academic-meta {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    margin-top: auto;
}

.academic-read-more {
    color: var(--fudan-red);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.academic-card:hover .academic-read-more {
    color: var(--fudan-dark-red);
    transform: translateX(5px);
}

/* 响应式设计 */
@media (max-width: 992px) {
    .academic-container {
        padding: 20px;
    }
}

@media (max-width: 768px) {
    .academic-image {
        height: 160px;
    }
    
    .academic-content {
        padding: 20px;
    }
    
    .academic-title {
        font-size: 1.1rem;
    }
    
    .academic-excerpt {
        font-size: 0.9rem;
    }
}

@media (max-width: 576px) {
    .academic-card {
        margin-bottom: 20px;
    }
    
    .academic-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
}

/* 版权板块样式 */
.copyright-footer {
    background-color: var(--fudan-red);
    color: white;
    padding: 40px 0;
    margin-top: 0;
}

.copyright-text {
    font-size: 1rem;
    font-weight: 500;
    margin: 0;
    letter-spacing: 0.5px;
}

/* 响应式版权样式 */
@media (max-width: 768px) {
    .copyright-footer {
        padding: 30px 0;
    }
    
    .copyright-text {
        font-size: 0.9rem;
    }
}