html {
    overflow-x: hidden;
}

body {
    background-color: #fff;
    width: 100%;
    min-height: 100vh;
}

[data-aos]:not(.aos-init) {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
}

.container {
    width: 1580px;
    margin: 0 auto;
}
/* header部分 */
.header-top {
    height: 233px;
    background: linear-gradient(180deg, rgba(7, 29, 71, 0.95) 0%, rgba(3, 27, 73, 0.6) 50%, rgba(68, 92, 184, 0) 100%);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
}

header {
    padding-top: 233px;
}

.header-inner-wrapper {
    width: 100%;
    border-bottom: 1px solid rgba(216, 216, 216, 0.2);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 120px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 20px;
}

.header-right {
    display: flex;
    align-items: center;
}

.download-text {
    color: #fff;
    font-size: 16px;
    width: 90px;
    height: 21px;
    line-height: 21px;
}

.search-icon {
    margin-left: 16px;
    cursor: pointer;
    display: inline-block;
    width: 28px;
    height: 28px;
    background-image: url('../images/searchIcon.png');
    background-size: cover;
}

.search-icon:hover {
    background-image: url('../images/searchIconActive.png');
}

.lang-switch {
    margin-left: 16px;
    width: 28px;
    height: 28px;
    color: #fff;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #fff;
    border-radius: 50%;
    cursor: pointer;
}

.lang-switch:hover {
    border: 1px solid #6999d4;
    background-color: #fff;
    color: #6999d4;
}

header {
    position: relative;
    height: 100vh;
}

.banner-swiper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    /* 开启硬件加速，减少切换时的渲染抖动 */
    transform: translateZ(0);
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

.banner-swiper .swiper-slide {
    width: 100%;
    height: 100%;
    overflow: hidden;
    /* 开启硬件加速，防止切换时图片跳动 */
    transform: translateZ(0);
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    will-change: transform;
}

.banner-swiper .swiper-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transform: scale(1.06);
}

/* 当前激活、duplicate-active 及前一个 slide 执行 Ken Burns 缓慢放大动画，与江西财经大学官网一致 */
.banner-swiper .swiper-slide-active img,
.banner-swiper .swiper-slide-duplicate-active img,
.banner-swiper .swiper-slide-prev img {
    animation: bannerKenBurns 1s linear both;
}

@keyframes bannerKenBurns {
    0% {
        transform: scale(1);
    }
    100% {
        transform: scale(1.06);
    }
}

.banner-swiper .swiper-pagination {
    bottom: 40px;
}

.banner-swiper .swiper-pagination-bullet {
    width: 12px;
    height: 12px;
    background: rgba(255, 255, 255, 0.5);
    opacity: 1;
}

.banner-swiper .swiper-pagination-bullet-active {
    background: #fff;
}

.nav {
    display: flex;
}

.nav-list {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding-top: 36px;
    padding-bottom: 48px;
}

.nav-item {
    color: #fff;
    font-size: 22px;
    font-weight: bold;
    cursor: pointer;
    position: relative;
    font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
    letter-spacing: 0.05em;
    white-space: nowrap;
}

.nav-item:hover::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -10px;
    width: 100%;
    height: 3px;
    background-color: #fff;
}

.has-submenu {
    position: relative;
}

.submenu {
    position: absolute;
    top: calc(100% + 14px);
    left: 50%;
    transform: translateX(-50%) scale(0);
    background: rgba(255, 255, 255, 0.9);
    border-radius: 8px;
    padding: 0;
    min-width: 160px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s ease-in-out;
    z-index: 100;
    box-shadow: rgba(0, 0, 0, 0.1) 5px 5px 20px;
    overflow: hidden;
}

.submenu li {
    color: #333;
    font-size: 20px;
    font-weight: normal;
    padding: 0;
    white-space: nowrap;
    text-align: center;
    cursor: pointer;
    transition: background 0.2s ease;
    position: relative;
    z-index: 1;
}

.submenu li a {
    display: block;
    line-height: 50px;
    padding: 0 24px;
    color: #333;
}

.submenu li:hover {
    background-color: rgba(0, 50, 136, 0.1);
}

.has-submenu:hover .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) scale(1);
}

.banner-icons {
    position: absolute;
    top: 690px;
    left: 357px;
    z-index: 10;
    display: flex;
    align-items: center;
}

.banner-icon {
    width: 44px;
    height: 44px;
    margin-left: 10px;
    object-fit: contain;
}

.banner-icon:first-child {
    margin-left: 0;
}

.banner-tabs {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: auto;
    z-index: 10;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #fff;
    border-radius: 16px 16px 0 0;
    overflow: hidden;
    border-bottom: 4px solid #2851A2;
}

.banner-tab {
    width: 234px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    cursor: pointer;
    background: transparent;
    color: #333;
    transition: all 0.3s;
}

.banner-tab.active {
    background: #0056B8;
    color: #fff;
}

.banner-tab img {
    width: 44px;
    height: 44px;
    object-fit: contain;
}

.tab-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.tab-title {
    font-size: 18px;
    font-weight: bold;
}

.tab-subtitle {
    font-size: 12px;
    opacity: 0.8;
}

.tab-divider {
    width: 1px;
    height: 72px;
    background: rgba(0, 86, 184, 0.2);
}

/* 新闻模块 */
.news-section {
    padding-top: 100px;
    background-color: #fff;
}

.news-header {
    text-align: center;
    margin-bottom: 30px;
}

.news-header img {
    width: 968px;
    height: 154px;
    display: block;
    margin: 0 auto;
}

.news-main {
    display: flex;
    width: 1580px;
    height: 440px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
    margin-bottom: -110px;
}

.news-grid-wrapper {
    background-color: rgba(0, 86, 184, 1);
    background-image: url('../images/newsBgc.png');
    background-repeat: no-repeat;
    background-position: right center;
    margin-top: 0;
    padding-top: 140px;
    height: 420px;
    position: relative;
    z-index: 1;
    box-sizing: border-box;
}

.news-grid-wrapper .container {
    display: flex;
    align-items: flex-end;
    height: 100%;
    position: relative;
}

.news-banner-swiper {
    width: 790px;
    height: 440px;
}

.news-banner-swiper .swiper-slide {
    width: 100%;
    height: 100%;
    overflow: hidden;
    position: relative;
}

.news-banner-swiper .swiper-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}

.news-banner-swiper .swiper-slide:hover img {
    transform: scale(1.05);
}

/* 新闻模块取消轮播后，只显示一篇文章的静态图片 */
.news-banner-static {
    width: 790px;
    height: 440px;
    overflow: hidden;
    position: relative;
}

.news-banner-static .news-banner-img {
    width: 100%;
    height: 100%;
}

.news-banner-static img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}

.news-banner-static:hover img {
    transform: scale(1.05);
}

/* 新闻模块图片闪光效果 */
.news-banner-static::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(
        to right,
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 0.2) 25%,
        rgba(255, 255, 255, 0) 50%
    );
    transform: skewX(-25deg);
    pointer-events: none;
    z-index: 2;
}

.news-banner-static:hover::after {
    animation: shine 0.8s ease-in-out;
}

.news-content-panel {
    width: 790px;
    height: 440px;
    background:  #EBEFF7;;
    padding: 50px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.news-slide {
    display: none;
}

.news-slide.active {
    display: block;
}

.news-date {
    margin-bottom: 24px;
}

.news-date-main {
    font-size: 36px;
    color: #C9A96E;
    font-weight: 500;
}

.news-date-divider {
    color: #ccc;
    font-size: 20px;
}

.news-date-year {
    font-size: 18px;
    color: #999;
}

.news-slide-title {
    font-size: 22px;
    font-weight: bold;
    color: #222;
    line-height: 1.5;
    margin-bottom: 20px;
}

.news-slide-title a {
    color: #222;
    transition: color 0.3s ease;
}

.news-slide-title a:hover {
    color: #0056B8;
}

.news-slide-desc {
    font-size: 20px;
    color: #999;
    line-height: 1.8;
}

.news-panel-footer {
    display: flex;
    align-items: center;
    gap: 24px;
}

.arrow-pair {
    display: flex;
    align-items: center;
}

.arrow-btn {
    border: none;
    background-color: transparent;
    cursor: pointer;
    padding: 0;
    background-repeat: no-repeat;
    background-position: center;
    background-size: contain;
    width: 44px;
    height: 44px;
}

.arrow-left {
    background-image: url('../images/left.png');
}

.arrow-left:hover {
    background-image: url('../images/leftClick.png');
}

.arrow-right {
    background-image: url('../images/right.png');
    margin-left: 165px;
}

.arrow-right:hover {
    background-image: url('../images/rightClick.png');
}

.news-more {
    margin-left: auto;
    display: flex;
    align-items: center;
    text-decoration: none;
    color: #666;
    font-size: 14px;
    transition: transform 0.3s ease;
}

.news-more:hover {
    transform: translateX(3px);
}

.news-more-line {
    width: 40px;
    height: 1px;
    background-color: #2851A2;
    margin-left: 5px;
    margin-right: 8px;
}

.news-more img {
    width: 20px;
    height: 20px;
}

.news-grid-swiper {
    width: 100%;
    height: 240px;
    padding: 20px 0 0 0;
    box-sizing: content-box;
}

.news-grid-swiper .swiper-slide {
    height: 240px;
}

/* 底部卡片取消轮播后，固定显示4个卡片 */
.news-grid-swiper .swiper-wrapper {
    display: flex !important;
    gap: 40px;
    transform: none !important;
}

.news-grid-swiper .swiper-slide {
    width: 365px !important;
    margin-right: 0 !important;
    flex-shrink: 0 !important;
}

.news-card {
    width: 365px;
    height: 240px;
    background: #fff;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform 0.45s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.45s ease;
    position: relative;
}

.news-card:hover {
    transform: translateY(-14px) scale(1.035);
    box-shadow: 0 24px 56px rgba(0, 0, 0, 0.4);
    z-index: 10;
}

.newsImg {
    width: 100%;
    height: 170px;
    overflow: hidden;
    position: relative;
}

.newsImg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}

.newsImg:hover img,
.news-card:hover .newsImg img {
    transform: scale(1.08);
}

.news-card-footer {
    height: 70px;
    padding: 12px 16px;
    box-sizing: border-box;
    border-top: 1px solid #f0f0f0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.news-card-footer .news-card-title {
    font-size: 22px;
    color: #333;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
    margin-right: 12px;
    font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
}

.news-card-footer .news-card-date {
    font-size: 16px;
    color: #B79864;
    white-space: nowrap;
}

.news-card-hover-text {
    display: flex;
    flex-direction: column;
    padding: 24px;
    height: 100%;
    box-sizing: border-box;
    background: #fff;
    border: 1px solid #f0f0f0;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    pointer-events: none;
    z-index: 2;
}

.news-card:not(.is-text):hover .newsImg,
.news-card:not(.is-text):hover .news-card-footer {
    display: none;
}

.news-card:not(.is-text):hover .news-card-hover-text {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.news-card:not(.is-text):hover .news-card-hover-text .news-card-title {
    font-size: 24px;
    color: #B79864;
    font-weight: bold;
    line-height: 1.4;
    margin-bottom: 12px;
}

.news-card:not(.is-text):hover .news-card-hover-text .news-card-desc {
    font-size: 16px;
    color: #666;
    line-height: 1.6;
    flex: 1;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
}

.news-card:not(.is-text):hover .news-card-hover-text .news-card-date {
    font-size: 20px;
    color: #B79864;
    margin-top: 12px;
}

.news-card.is-text {
    padding: 24px;
    box-sizing: border-box;
    background: #fff;
    border: 1px solid #f0f0f0;
    display: flex;
    flex-direction: column;
}

.news-card.is-text .news-card-title {
    font-size: 24px;
    color: #B79864;
    font-weight: bold;
    line-height: 1.4;
    margin-bottom: 12px;
}

.news-card.is-text .news-card-desc {
    font-size: 16px;
    color: #666;
    line-height: 1.6;
    flex: 1;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
}

.news-card.is-text .news-card-date {
    font-size: 20px;
    color: #B79864;
    margin-top: 12px;
}

/* 通知公告模块 */
.notice-section {
    width: 100%;
    background-image: url('../images/noticeBgc.png');
    background-size: cover;
    background-position: center;
    padding: 72px 0;
}

.notice-header {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    margin-bottom: 40px;
}

.notice-header img {
    width: 480px;
    height: 154px;
    display: block;
}

.notice-more {
    position: absolute;
    right: 0;
    display: flex;
    align-items: center;
    text-decoration: none;
    color: #666;
    font-size: 14px;
    transition: transform 0.3s ease;
}

.notice-more:hover {
    transform: translateX(3px);
}

.notice-more-line {
    width: 40px;
    height: 1px;
    background-color: #2851A2;
    margin-left: 5px;
    margin-right: 8px;
}

.notice-more img {
    width: 20px;
    height: 20px;
}

.notice-body {
    display: flex;
    justify-content: space-between;
}

.notice-list {
    width: 720px;
}

.notice-list li {
    height: 30px;
    font-size: 22px;
    color: #333;
    position: relative;
    margin-bottom: 32px;
    font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
}

.notice-item {
    display: flex;
    align-items: center;
    width: 100%;
    height: 100%;
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

.notice-list li:hover .notice-item {
    color: #2851a2;
}

.notice-list li::after {
    content: '';
    position: absolute;
    bottom: -16px;
    left: 0;
    width: 100%;
    height: 1px;
    background-color: rgba(216, 216, 216, 0.4);
}

.notice-list li::before {
    content: '';
    position: absolute;
    bottom: -16px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, #00c6c6 0%, #2851a2 100%);
    transition: width 0.4s ease;
    z-index: 1;
}

.notice-list li:hover::before {
    width: 100%;
}

.notice-list li:last-child {
    margin-bottom: 0;
}

.notice-list li:last-child::after {
    background-color: transparent;
}

.notice-text {
    width: 562px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex-shrink: 0;
    text-align: left;
}

.notice-date {
    font-size: 20px;
    color: rgba(102, 102, 102, 0.7);
    margin-left: 65px;
    flex-shrink: 0;
    text-align: left;
}

/* 活动讲座模块 */
.lecture-section {
    width: 100%;
    height: auto;
    background-image: url('../images/activeBgc.png');
    background-size: cover;
    background-position: center;
    padding: 78px 0 100px 0;
    box-sizing: border-box;
}

.lecture-header {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    margin-bottom: 40px;
}

.lecture-header img {
    display: block;
}

.lecture-section .notice-more {
    position: absolute;
    right: 0;
    color: #fff;
    font-size: 16px;
}

.lecture-section .notice-more-line {
    background-color: #fff;
}

.lecture-section .notice-more img {
    filter: brightness(0) invert(1);
}

.lecture-swiper {
    width: 100%;
    overflow: hidden;
    height: 400px;
}

.lecture-swiper .swiper-slide {
    height: 100%;
}

.lecture-card {
    width: 100%;
    height: 100%;
    background: #fff;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    overflow: hidden;
}

.lecture-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.18);
}

.lecture-img {
    width: 100%;
    height: 210px;
    flex-shrink: 0;
    overflow: hidden;
    position: relative;
}

.lecture-img img {
    transition: transform 0.4s ease;
}

.lecture-card:hover .lecture-img img {
    transform: scale(1.05);
}

/* 新闻与活动讲座图片的闪光效果 */
.newsImg::after,
.lecture-img::after,
.news-banner-swiper .swiper-slide::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    background: linear-gradient(
        to right,
        rgba(255, 255, 255, 0) 0%,
        rgba(255, 255, 255, 0.2) 25%,
        rgba(255, 255, 255, 0) 50%
    );
    transform: skewX(-25deg);
    pointer-events: none;
    z-index: 2;
}

.news-card:hover .newsImg::after,
.lecture-card:hover .lecture-img::after,
.news-banner-swiper .swiper-slide:hover::after {
    animation: shine 0.8s ease-in-out;
}

@keyframes shine {
    0% {
        left: -100%;
    }
    100% {
        left: 150%;
    }
}

.lecture-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.lecture-info {
    flex: 1;
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
}

.lecture-title {
    font-size: 18px;
    color: #333;
    line-height: 1.5;
    margin-bottom: 16px;
    font-weight: normal;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
    min-height: 54px;
}

.lecture-meta {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.lecture-meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 16px;
    color: #0849A3;
    white-space: nowrap;
    overflow: hidden;
}

.lecture-meta-item span {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.lecture-icon {
    width: 16px;
    height: 16px;
    display: inline-block;
    flex-shrink: 0;
}


/* 视频模块 */
.video-section {
    width: 100%;
    position: relative;
    /* 为底部溢出轮播预留空间，防止与footer重叠 */
    margin-bottom: 120px;
}

.video-main {
    width: 100%;
    height: 866px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    /* 不设置 overflow:hidden，允许子元素溢出显示 */
}

.video-main-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: opacity 0.3s ease;
}

.video-play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 88px;
    height: 88px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.3s ease, opacity 0.3s ease, background 0.3s ease;
    z-index: 3;
    /* 半透明白色底色 */
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(4px);
    border: 2px solid rgba(255, 255, 255, 0.8);
}

.video-play-btn:hover {
    transform: translate(-50%, -50%) scale(1.12);
    opacity: 0.9;
    background: rgba(255, 255, 255, 0.35);
}

/* 白色播放三角形图标 */
.video-play-btn::after {
    content: '';
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 14px 0 14px 24px;
    border-color: transparent transparent transparent #fff;
    margin-left: 6px;
}

.video-carousel {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    /* 小缩略图底部32px在外，大缩略图底部50px在外 */
    bottom: -50px;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    pointer-events: none;
}

.video-thumbnails-swiper {
    width: 954px;
    height: 180px;
    pointer-events: auto;
    flex-shrink: 0;
    overflow: hidden;
}

.video-thumbnails-swiper .swiper-wrapper {
    align-items: center;
}

.video-thumbnails-swiper .swiper-slide {
    /* 所有 slide DOM 尺寸统一为 320×180，让 Swiper 内部计算稳定不偏移 */
    width: 320px;
    height: 180px;
    transition: opacity 0.4s ease;
    overflow: hidden;
    position: relative;
    cursor: pointer;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    /* 轻微圆角 */
    border-radius: 6px;
}

/* 中间当前激活的缩略图：白色外描边边框，层级更高 */
.video-thumbnails-swiper .swiper-slide-active {
    opacity: 1;
    border: 3px solid #fff;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
    z-index: 2;
    border-radius: 8px;
}

/* 未激活缩略图遮罩层 #ccc 40%，仅覆盖图片区域（匹配 scale 0.8） */
.video-thumbnails-swiper .swiper-slide::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    height: 80%;
    background: rgba(204, 204, 204, 0.4);
    z-index: 2;
    pointer-events: none;
    border-radius: 6px;
}

.video-thumbnails-swiper .swiper-slide-active::before {
    background: transparent;
}

/* 底部蓝色指示线 */
.video-thumbnails-swiper .swiper-slide::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 60px;
    height: 3px;
    background: #0056B8;
    transition: transform 0.3s ease;
    z-index: 3;
}

.video-thumbnails-swiper .swiper-slide-active::after {
    transform: translateX(-50%) scaleX(1);
}

.video-thumbnails-swiper .swiper-slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transform: scale(0.8);
    transition: transform 0.4s ease;
}

/* 激活状态恢复原始尺寸 320×180 */
.video-thumbnails-swiper .swiper-slide-active img {
    transform: scale(1);
}

/* 箭头：金色圆形背景，内部白色箭头图标 */
.video-arrow {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: #B79864;
    cursor: pointer;
    transition: all 0.25s ease;
    flex-shrink: 0;
    pointer-events: auto;
    position: relative;
}

.video-arrow::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-top: 6px solid transparent;
    border-bottom: 6px solid transparent;
}

.video-arrow-left {
    margin-right: -20px;
}

.video-arrow-left::after {
    transform: translate(-70%, -50%);
    border-right: 9px solid #fff;
}

.video-arrow-left:not(.disabled):hover {
    background-color: #2851A2;
    transform: scale(1.08);
}

.video-arrow-right {
    margin-left: -20px;
}

.video-arrow-right::after {
    transform: translate(-30%, -50%);
    border-left: 9px solid #fff;
}

.video-arrow-right:not(.disabled):hover {
    background-color: #2851A2;
    transform: scale(1.08);
}

.video-arrow.disabled {
    opacity: 1;
    cursor: not-allowed;
}

.video-arrow::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: rgba(204, 204, 204, 0.4);
    z-index: 1;
}




.video-arrow:active:not(.disabled) {
    transform: scale(0.96);
}

/* 回到顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 999;
    transition: all 0.3s ease;
    opacity: 0;
    visibility: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: scale(1.08);
    box-shadow: 0 4px 12px rgba(0, 86, 184, 0.2);
}

.back-to-top::before {
    display: none;
}

/* 视频模块响应式适配 */

/* 视频播放遮罩层 */
.video-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.video-overlay.active {
    opacity: 1;
    visibility: visible;
}

.video-overlay-inner {
    width: 100%;
    height: 100%;
    max-width: none;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.video-overlay-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 36px;
    height: 36px;
    cursor: pointer;
    opacity: 0.8;
    transition: opacity 0.2s ease;
    z-index: 10002;
}

.video-overlay-close::before,
.video-overlay-close::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 28px;
    height: 2px;
    background: #fff;
    transform-origin: center;
}

.video-overlay-close::before {
    transform: translate(-50%, -50%) rotate(45deg);
}

.video-overlay-close::after {
    transform: translate(-50%, -50%) rotate(-45deg);
}

.video-overlay-close:hover {
    opacity: 1;
}

.video-overlay-inner video {
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 9;
    max-height: 80vh;
    display: block;
    border-radius: 8px;
    background: #000;
}

.video-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #fff;
    font-size: 16px;
    display: none;
}

.video-loading.active {
    display: block;
}

.video-error {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #fff;
    text-align: center;
    display: none;
}

.video-error.active {
    display: block;
}

.video-error p {
    font-size: 16px;
    margin-bottom: 20px;
}

.video-error button {
    padding: 8px 24px;
    font-size: 14px;
    background: #0056B8;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

/* 搜索遮罩层 */
.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10001;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.search-overlay.active {
    opacity: 1;
    visibility: visible;
}

.search-box-wrapper {
    width: 600px;
    max-width: 90%;
    position: relative;
}

.search-box {
    display: flex;
    align-items: center;
    background: #fff;
    border-radius: 8px;
    padding: 4px 4px 4px 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.search-box input {
    flex: 1;
    height: 48px;
    border: none;
    outline: none;
    font-size: 16px;
    color: #333;
    background: transparent;
}

.search-box input::placeholder {
    color: #999;
    font-size: 16px;
}

.search-submit-icon {
    width: 48px;
    height: 48px;
    border: none;
    background: transparent url('../images/searchIcon.png') no-repeat center center;
    background-size: 24px 24px;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.2s ease;
}

.search-submit-icon:hover {
    opacity: 1;
}

.search-overlay-close {
    position: absolute;
    top: 40px;
    right: 40px;
    width: 32px;
    height: 32px;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.2s ease;
    z-index: 10002;
}

.search-overlay-close::before,
.search-overlay-close::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 24px;
    height: 2px;
    background: #fff;
    transform-origin: center;
}

.search-overlay-close::before {
    transform: translate(-50%, -50%) rotate(45deg);
}

.search-overlay-close::after {
    transform: translate(-50%, -50%) rotate(-45deg);
}

.search-overlay-close:hover {
    opacity: 1;
}

/* footer部分 */
.footer {
    width: 100%;
    height: 393px;
    display: flex;
    flex-direction: column;
    background-color: #0849A3;
}

.footer-top {
    height: 329px;
}

.footer-inner {
    position: relative;
    height: 100%;
}

.footer-logo {
    position: absolute;
    top: 117px;
}

.footer-logo img {
    width: 580px;
    height: 63px;
    display: block;
}

.footer-center {
    position: absolute;
    left: 532px;
    bottom: 0;
    width: 434px;
    height: 312px;
}

.footer-center img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.footer-info {
    position: absolute;
    left: 966px;
    top: 80px;
    width: 575px;
    height: 152px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.footer-info li {
    font-size: 18px;
    font-weight: 400;
    color: #fff;
}

.footer-bottom {
    width: 100%;
    height: 64px;
    background-color: rgba(0, 0, 0, 0.2);
}

.footer-bottom-inner {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.footer-bottom p {
    font-size: 16px;
    color: #fff;
    line-height: 38px;
}