* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Serif SC', 'Microsoft YaHei', serif;
    background-color: #fff;
    color: #333;
}

a,
a:focus,
a:hover {
    border: none;
    outline: none;
    height: auto;
    text-decoration: none;
    color: inherit;
}

/* 导航栏 - 白色背景 */
.navbar {
    background: #fff;
    padding: 23px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(200, 120, 140, 0.08);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.logo-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.logo-text {
    font-size: 18px;
    color: #C8788C;
    font-weight: 700;
    font-family: 'Microsoft YaHei', '微软雅黑', sans-serif;
}

/* Hero区域 - 玫瑰粉渐变 */
.hero {
    margin-top: 70px;
    height: 758px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: linear-gradient(135deg, #B86B7E 0%, #C8788C 40%, #D98A9E 70%, #E8A5B5 100%);
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(ellipse at 30% 20%, rgba(255, 255, 255, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 40%);
    pointer-events: none;
}

.hero-content {
    text-align: center;
    z-index: 10;
    position: relative;
    padding: 40px;
}

.hero-year-display {
    display: flex;
    justify-content: center;
    align-items: baseline;
    gap: 20px;
    margin-bottom: 25px;
}

.year-number {
    font-family: 'Georgia', 'Times New Roman', serif;
    font-size: 80px;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.95);
    letter-spacing: 5px;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.15);
    line-height: 1;
}

.year-divider {
    font-size: 50px;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 300;
}

.hero-title {
    font-family: 'Ma Shan Zheng', 'Noto Serif SC', cursive;
    font-size: 64px;
    color: #fff;
    font-weight: 400;
    letter-spacing: 12px;
    margin-bottom: 15px;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.2);
}

.hero-subtitle {
    font-family: 'Noto Serif SC', serif;
    font-size: 20px;
    color: rgba(255, 255, 255, 0.95);
    letter-spacing: 6px;
    margin-bottom: 10px;
}

.hero-tagline {
    font-family: 'Noto Serif SC', serif;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.85);
    letter-spacing: 3px;
    margin-top: 15px;
}

/* 标签导航 */
.tab-nav {
    background: #fff;
    border-bottom: 1px solid #F5E0E5;
    padding: 0;
}

.tab-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
}

.tab-item {
    padding: 18px 35px;
    cursor: pointer;
    font-size: 17px;
    font-weight: 600;
    color: #666;
    position: relative;
    transition: all 0.3s;
    font-family: 'Microsoft YaHei', '微软雅黑', sans-serif;
}

.tab-item:hover {
    color: #C8788C;
}

.tab-item.active {
    color: #C8788C;
    background: transparent;
}

.tab-item.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 20%;
    right: 20%;
    height: 3px;
    background: #C8788C;
    border-radius: 2px;
}

/* 内容区域 */
.content-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 50px 20px;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.section-title {
    font-family: 'Noto Serif SC', serif;
    font-size: 28px;
    color: #C8788C;
    font-weight: 600;
    position: relative;
    padding-left: 0;
}

.section-title::before {
    display: none;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: #C8788C;
    margin: 10px auto 0;
    border-radius: 2px;
}

.section-header .section-title::after {
    margin: 10px 0 0;
}

.more-link {
    color: #C8788C;
    font-size: 14px;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 5px;
}

.more-link:hover {
    color: #D98A9E;
}

/* 活动动态 */
.news-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.news-main {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(200, 120, 140, 0.1);
}

.news-main img {
    width: 100%;
    height: 350px;
    object-fit: cover;
}

.news-main-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(184, 107, 126, 0.9), transparent);
    padding: 40px 20px 20px;
    color: #fff;
}

.news-main-title {
    font-size: 20px;
    margin-bottom: 10px;
    font-weight: 600;
}

.news-main-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
    line-height: 1.6;
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}
.news-list .news-item:first-child{
    display: none;
}
.news-item {
    display: flex;
    gap: 15px;
    padding: 15px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(200, 120, 140, 0.06);
    transition: transform 0.3s, box-shadow 0.3s;
    cursor: pointer;
    border: 1px solid #F8E8EC;
}

.news-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(200, 120, 140, 0.12);
}

.news-item-img {
    width: 100px;
    height: 80px;
    border-radius: 8px;
    overflow: hidden;
    flex-shrink: 0;
}

.news-item-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

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

.news-item-title {
    font-size: 16px;
    color: #333;
    margin-bottom: 8px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-item-date {
    font-size: 12px;
    color: #C8788C;
}

/* 专题讲座模块 */
.lecture-section {
    background: #FDF5F7;
    padding: 50px 0;
    margin-top: 30px;
}

.lecture-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.lecture-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 40px;
    align-items: center;
}

.lecture-main {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(200, 120, 140, 0.12);
}

.lecture-main img {
    width: 100%;
    height: 300px;
    object-fit: cover;
}

.lecture-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    background: #C8788C;
    color: #fff;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 12px;
}

.lecture-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.lecture-item {
    background: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(200, 120, 140, 0.06);
    border-left: 3px solid #C8788C;
    transition: transform 0.3s;
    cursor: pointer;
}

.lecture-item:hover {
    transform: translateX(5px);
}

.lecture-item-date {
    font-size: 12px;
    color: #C8788C;
    margin-bottom: 8px;
}

.lecture-item-title {
    font-size: 16px;
    color: #333;
    font-weight: 500;
    margin-bottom: 8px;
}

.lecture-item-speaker {
    font-size: 13px;
    color: #888;
}

/* 优秀校友版块 */
.alumni-section {
    background: #fff;
    padding: 50px 0;
}

.alumni-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 第一行：杰出校友 */
.alumni-featured {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    margin-bottom: 40px;
}

.alumni-featured-item  {
    display: flex;
    align-items: center;
    gap: 30px;
    padding: 35px;
    background: linear-gradient(135deg, #F5E0E5, #FDF5F7);
    border-radius: 16px;
    transition: transform 0.3s, box-shadow 0.3s;
    cursor: pointer;
    border: 1px solid #F0D0D8;
}

.alumni-featured-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(200, 120, 140, 0.15);
}

.alumni-featured-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
    border: 4px solid #F5E0E5;
    box-shadow: 0 6px 20px rgba(200, 120, 140, 0.2);
}

.alumni-featured-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.alumni-featured-info {
    flex: 1;
    text-align: left;
}

.alumni-featured-name {
    font-size: 20px;
    color: #333;
    font-weight: 600;
    margin-bottom: 6px;
}

.alumni-featured-title {
    font-size: 14px;
    color: #C8788C;
    margin-bottom: 10px;
    font-weight: 500;
}

.alumni-featured-desc {
    font-size: 13px;
    color: #666;
    line-height: 1.7;
}

/* 第二行：优秀校友 */
.alumni-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 25px;
}

.alumni-item {
    text-align: center;
    padding: 25px 15px;
    background: #FDF5F7;
    border-radius: 12px;
    transition: transform 0.3s, box-shadow 0.3s;
    cursor: pointer;
}

.alumni-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(200, 120, 140, 0.1);
}

.alumni-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto 12px;
    border: 3px solid #F5E0E5;
    box-shadow: 0 4px 15px rgba(200, 120, 140, 0.12);
}

.alumni-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.alumni-avatar-placeholder {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    margin: 0 auto 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    background: linear-gradient(135deg, #f0d8e0, #f8e8ec);
    color: #c08090;
    box-shadow: 0 4px 15px rgba(200, 120, 140, 0.15);
    overflow: hidden;
}

.alumni-avatar-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.alumni-name {
    font-size: 15px;
    color: #333;
    font-weight: 600;
    margin-bottom: 4px;
}

.alumni-title {
    font-size: 13px;
    color: #C8788C;
    margin-bottom: 10px;
}

.alumni-desc {
    font-size: 12px;
    color: #666;
    line-height: 1.6;
}

/* 云端展厅 */
.gallery-section {
    padding: 50px 0;
    background: #FDF5F7;
}

.gallery-section .section-header {
    padding-left: 20px;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
}

.gallery-item {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    aspect-ratio: 16/9;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(200, 120, 140, 0.1);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.gallery-item-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(184, 107, 126, 0.85), transparent);
    padding: 50px 20px 20px;
    color: #fff;
}

.gallery-item-title {
    font-size: 16px;
    margin-bottom: 5px;
    font-weight: 500;
}

.gallery-item-date {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.85);
}

/* 主题宣传片 */
.video-section {
    background: #fff;
    padding: 50px 0;
}

.video-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.video-wrapper {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
    align-items: center;
}

.video-player {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(200, 120, 140, 0.12);
    aspect-ratio: 16/9;
}

.video-player img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: rgba(200, 120, 140, 0.95);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.3s, background 0.3s;
}

.play-button:hover {
    transform: translate(-50%, -50%) scale(1.1);
    background: rgba(200, 120, 140, 1);
}

.play-button::after {
    content: '';
    width: 0;
    height: 0;
    border-left: 25px solid #fff;
    border-top: 15px solid transparent;
    border-bottom: 15px solid transparent;
    margin-left: 5px;
}

.video-info {
    padding: 20px;
}

.video-info-title {
    font-size: 22px;
    color: #C8788C;
    margin-bottom: 15px;
    font-weight: 600;
}

.video-info-desc {
    font-size: 14px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 25px;
}

.video-info-btn {
    display: inline-block;
    padding: 12px 30px;
    background: #C8788C;
    color: #fff;
    text-decoration: none;
    border-radius: 25px;
    font-size: 14px;
    transition: background 0.3s;
}

.video-info-btn:hover {
    background: #D98A9E;
}

/* 页脚 */
.footer {
    background: linear-gradient(135deg, #B86B7E, #C8788C);
    padding: 50px 0;
    text-align: center;
    color: #fff;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.footer-title {
    font-family: 'Ma Shan Zheng', cursive;
    font-size: 32px;
    margin-bottom: 10px;
    font-weight: 400;
    letter-spacing: 6px;
}

.footer-subtitle {
    font-size: 16px;
    opacity: 0.95;
    margin-bottom: 25px;
    letter-spacing: 2px;
}

.footer-info {
    font-size: 13px;
    opacity: 0.9;
    line-height: 2;
}

.footer-year {
    margin-top: 20px;
    font-size: 18px;
    letter-spacing: 6px;
    opacity: 0.95;
}

/* 响应式 */
/* 平板适配 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .logo-text {
        font-size: 14px;
    }

    .hero {
        height: 380px;
        margin-top: 60px;
    }

    .hero-title {
        font-size: 42px;
        letter-spacing: 8px;
    }

    .year-number {
        font-size: 60px;
    }

    .hero-subtitle {
        font-size: 16px;
        letter-spacing: 3px;
    }

    .tab-item {
        padding: 15px 18px;
        font-size: 14px;
    }

    .tab-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        justify-content: flex-start;
    }

    .content-section,
    .lecture-container,
    .alumni-container,
    .video-container {
        padding-left: 15px;
        padding-right: 15px;
    }

    .section-title {
        font-size: 22px;
    }

    .news-grid,
    .lecture-grid,
    .video-wrapper {
        grid-template-columns: 1fr;
    }

    .news-main img {
        height: 250px;
    }

    .lecture-main img {
        height: 220px;
    }

    .alumni-featured {
        grid-template-columns: 1fr;
    }

    .alumni-featured-item {
        flex-direction: column;
        text-align: center;
        padding: 25px;
    }

    .alumni-featured-info {
        text-align: center;
    }

    .alumni-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 15px;
    }

    .alumni-item {
        padding: 20px 10px;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
    }

    .video-player {
        aspect-ratio: 16/9;
    }
}

/* 手机适配 */
@media (max-width: 480px) {
    .navbar {
        padding: 10px 0;
    }

    .logo-text {
        font-size: 12px;
    }

    .hero {
        height: 320px;
        margin-top: 50px;
    }

    .hero-content {
        padding: 20px;
    }

    .hero-year-display {
        gap: 10px;
        margin-bottom: 15px;
    }

    .year-number {
        font-size: 42px;
    }

    .year-divider {
        font-size: 30px;
    }

    .hero-title {
        font-size: 30px;
        letter-spacing: 5px;
    }

    .hero-subtitle {
        font-size: 14px;
        letter-spacing: 2px;
    }

    .tab-item {
        padding: 12px 14px;
        font-size: 13px;
        white-space: nowrap;
    }

    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .section-title {
        font-size: 20px;
    }

    .content-section {
        padding: 30px 15px;
    }

    .lecture-section,
    .alumni-section,
    .gallery-section,
    .video-section {
        padding: 30px 0;
    }

    .news-main img {
        height: 200px;
    }

    .news-main-content {
        padding: 30px 15px 15px;
    }

    .news-main-title {
        font-size: 16px;
    }

    .news-item {
        padding: 12px;
    }

    .news-item-img {
        width: 80px;
        height: 65px;
    }

    .news-item-title {
        font-size: 13px;
    }

    .lecture-main img {
        height: 180px;
    }

    .lecture-item {
        padding: 15px;
    }

    .lecture-item-title {
        font-size: 14px;
    }

    .alumni-featured-item {
        padding: 20px 15px;
        gap: 20px;
    }

    .alumni-featured-avatar {
        width: 80px;
        height: 80px;
    }

    .alumni-featured-name {
        font-size: 18px;
    }

    .alumni-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .alumni-avatar,
    .alumni-avatar-placeholder {
        width: 65px;
        height: 65px;
        font-size: 24px;
    }

    .alumni-name {
        font-size: 13px;
    }

    .alumni-title {
        font-size: 11px;
    }

    .alumni-desc {
        font-size: 11px;
    }

    .gallery-item {
        aspect-ratio: 16/9;
    }

    .gallery-item-title {
        font-size: 14px;
    }

    .gallery-item-date {
        font-size: 12px;
    }

    .video-info-title {
        font-size: 18px;
    }

    .video-info-desc {
        font-size: 13px;
    }

    .play-button {
        width: 60px;
        height: 60px;
    }

    .play-button::after {
        border-left-width: 18px;
        border-top-width: 10px;
        border-bottom-width: 10px;
        margin-left: 4px;
    }

    .footer-title {
        font-size: 26px;
    }

    .footer-subtitle {
        font-size: 14px;
    }

    .footer-info {
        font-size: 12px;
    }
}