/* ===== 移动端响应式样式 ===== */

/* 平板设备 (768px - 1024px) */
@media screen and (max-width: 1024px) {
    .main_w {
        width: 90%;
        max-width: 1024px;
    }

    /* 导航栏调整 */
    header nav {
        height: 100px;
    }

    header .nav .logo {
        height: 60px;
        top: 20px;
    }

    header .nav .nav_bottom {
        font-size: 16px;
    }

    header .nav .nav_bottom>ul>li {
        margin-left: 15px;
    }

    /* 新闻区域调整 */
    .xueyuan_news {
        height: auto;
        padding-top: 20px;
    }

    .xueyuan_news .news_content .news_content_left {
        width: 48%;
        height: auto;
    }

    .xueyuan_news .news_content .news_content_left_img img {
        width: 100%;
        height: auto;
    }

    .xueyuan_news .news_content .news_content_right {
        width: 48%;
    }

    .xueyuan_news .news_content .news_content_right ul li {
        height: 180px;
    }

    /* 关注通知区域 */
    .attention_notice {
        height: auto;
        padding-top: 40px;
    }

    .attention_notice .recent_attention {
        width: 48%;
        height: auto;
    }

    .attention_notice .notice_announcement {
        width: 48%;
        height: auto;
    }

    .recent_attention .recent_content ul li {
        width: calc(100% - 35px);
    }

    .notice_announcement .notice_content ul li {
        width: calc(100% - 35px);
    }

    /* 快速链接 */
    .links {
        height: auto;
        padding-top: 20px;
    }

    .links .links_content ul {
        padding: 0 20px;
        flex-wrap: wrap;
        justify-content: center;
        gap: 20px;
    }

    .links .links_content ul li {
        width: 120px;
    }

    .links .links_content ul li:not(:last-child)::after {
        display: none;
    }

    /* 页尾 */
    .footer {
        height: auto;
    }

    .footer .footer_content {
        height: auto;
        padding: 40px 20px;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .footer .footer_content_left {
        position: static;
        width: 30%;
        border-right: 1px solid #fff;
        padding: 0 20px;
    }

    .footer .footer_content_center {
        position: static;
        width: 40%;
    }

    .footer .footer_content_right {
        position: static;
        width: 30%;
        border-left: 1px solid #fff;
        padding: 0 20px;
    }
}

/* 移动设备 (最大768px) */
@media screen and (max-width: 768px) {
    /* 基础样式调整 */
    .main_w {
        width: 95%;
        max-width: 768px;
    }

    /* 导航栏移动端样式 */
    header {
        height: auto;
    }

    header nav {
        position: relative;
        height: auto;
        background-color: #e73636;
    }

    header nav.scrolled,
    header nav.scrolled.visible {
        position: relative;
        transform: none;
        opacity: 1;
        background-color: #036c6c;
    }

    header .nav {
        display: flex;
        flex-direction: column;
        padding: 15px 0;
    }

    header .nav .logo {
        position: relative;
        height: 50px;
        top: auto;
        left: auto;
        margin-bottom: 10px;
    }

    header .nav .logo img {
        height: 50px;
    }

    header .nav .nav_top {
        position: relative;
        height: auto;
        top: auto;
        right: auto;
        margin-bottom: 10px;
    }

    header .nav .nav_top ul {
        display: flex;
        justify-content: center;
        gap: 15px;
    }

    header .nav .nav_top li {
        margin-left: 0;
    }

    /* 移动端汉堡菜单按钮 */
    header .nav .nav_bottom {
        position: relative;
        height: auto;
        top: auto;
        right: auto;
        display: none;
    }

    header .nav .nav_bottom.mobile-active {
        display: block;
    }

    header .nav .nav_bottom>ul {
        flex-direction: column;
    }

    header .nav .nav_bottom>ul>li {
        float: none;
        margin-left: 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    }

    header .nav .nav_bottom>ul>li:last-child {
        border-bottom: none;
    }

    header .nav .nav_bottom>ul>li a {
        display: block;
        padding: 12px 20px;
    }

    /* 子菜单移动端样式 */
    .nav li .subnav {
        position: relative;
        width: 100%;
        height: auto;
        transform: none;
        opacity: 1;
        visibility: visible;
        display: none;
        padding-top: 0;
    }

    .nav li .subnav.active {
        display: block;
    }

    .nav li .subnav .Sub {
        width: 100%;
        height: auto;
        background: #fff;
        padding: 10px 0;
    }

    .nav .subnav .submenu {
        float: none;
        width: 100%;
        height: auto;
        padding: 0;
        display: flex;
        flex-wrap: wrap;
    }

    .nav .subnav .submenu li {
        width: 50%;
        padding: 8px 15px;
    }

    .nav .nav_bottom .xian_bottom,
    .nav .nav_bottom .xian .xian_left,
    .nav .nav_bottom .xian .xian_right {
        display: none;
    }

    /* 移动端菜单切换按钮 */
    .mobile-menu-btn {
        display: block;
        position: absolute;
        top: 20px;
        right: 15px;
        width: 30px;
        height: 25px;
        cursor: pointer;
        z-index: 1000;
    }

    .mobile-menu-btn span {
        display: block;
        width: 100%;
        height: 3px;
        background-color: #fff;
        margin-bottom: 5px;
        transition: all 0.3s ease;
    }

    .mobile-menu-btn.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-btn.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    /* 轮播图移动端 */
    .banner {
        height: 50vh;
        min-height: 300px;
    }

    .banner .more {
        display: none;
    }

    /* 学院新闻移动端 */
    .section1 {
        background: none;
    }

    .xueyuan_news {
        padding-top: 15px;
    }

    .xueyuan_news .news_title {
        height: auto;
        margin-bottom: 15px;
    }

    .xueyuan_news .news_title .news_title_left h2 {
        font-size: 24px;
        position: relative;
        bottom: auto;
        padding-left: 10px;
    }

    .xueyuan_news .news_title .news_title_left i {
        font-size: 14px;
        position: relative;
        top: auto;
        left: auto;
        padding-left: 10px;
    }

    .xueyuan_news .news_title .news_title_right {
        position: relative;
        bottom: auto;
        right: auto;
        margin-top: 10px;
    }

    .xueyuan_news .news_content {
        margin-top: 15px;
        height: auto;
    }

    .xueyuan_news .news_content .news_content_left {
        float: none;
        width: 100%;
        height: auto;
        margin-bottom: 20px;
    }

    .xueyuan_news .news_content .news_content_left_img img {
        width: 100%;
        height: auto;
        position: relative;
    }

    .xueyuan_news .news_content .news_content_left_text {
        position: relative;
        width: 100%;
        height: auto;
        border-radius: 0 0 30px 30px;
        padding: 15px;
        margin-top: -50px;
        z-index: 10;
    }

    .xueyuan_news .news_content .news_content_left_text span,
    .xueyuan_news .news_content .news_content_left_text i,
    .xueyuan_news .news_content .news_content_left_text a,
    .xueyuan_news .news_content .news_content_left_text h3,
    .xueyuan_news .news_content .news_content_left_text p {
        position: relative;
        top: auto;
        left: auto;
        width: 100%;
    }

    .xueyuan_news .news_content .news_content_left_text h3 {
        margin: 10px 0;
        font-size: 16px;
    }

    .xueyuan_news .news_content .news_content_left_text p {
        font-size: 12px;
        margin: 10px 0;
    }

    .xueyuan_news .news_content .news_content_right {
        float: none;
        width: 100%;
    }

    .xueyuan_news .news_content .news_content_right ul {
        height: auto;
    }

    .xueyuan_news .news_content .news_content_right ul li {
        height: auto;
        margin-bottom: 15px;
    }

    .xueyuan_news .news_content .news_content_right ul li a {
        display: flex;
        flex-direction: column;
    }

    .xueyuan_news .news_content .news_content_right ul li a div {
        width: 100%;
        padding: 15px;
    }

    .xueyuan_news .news_content .news_content_right ul li>a>div>h4 {
        position: relative;
        left: auto;
        top: auto;
        font-size: 16px;
        margin-bottom: 8px;
    }

    .xueyuan_news .news_content .news_content_right ul li a div p {
        position: relative;
        left: auto;
        top: auto;
        width: 100%;
        height: auto;
        font-size: 12px;
        margin-bottom: 8px;
    }

    .xueyuan_news .news_content .news_content_right ul li a div i {
        position: relative;
        bottom: auto;
        left: auto;
        font-size: 12px;
    }

    .xueyuan_news .news_content .news_content_right ul li a div span {
        position: relative;
        bottom: auto;
        right: auto;
        font-size: 14px;
    }

    .xueyuan_news .news_content .news_content_right ul li a .new_img2 {
        position: relative;
        width: 100%;
        height: 200px;
    }

    /* 关注通知移动端 */
    .section2 {
        background: none;
    }

    .attention_notice {
        padding-top: 20px;
        height: auto;
    }

    .attention_notice .recent_attention {
        float: none;
        width: 100%;
        height: auto;
        margin-bottom: 30px;
    }

    .attention_notice .notice_announcement {
        float: none;
        width: 100%;
        height: auto;
    }

    .recent_attention .recent_title,
    .notice_announcement .notice_title {
        height: auto;
        margin-bottom: 15px;
    }

    .recent_attention .recent_title .recent_title_left h2,
    .notice_announcement .notice_title .notice_title_left h2 {
        font-size: 24px;
        position: relative;
        bottom: auto;
        padding-left: 10px;
    }

    .recent_attention .recent_title .recent_title_left i,
    .notice_announcement .notice_title .notice_title_left i {
        font-size: 14px;
        position: relative;
        top: auto;
        left: auto;
        padding-left: 10px;
    }

    .recent_attention .recent_title .recent_title_right,
    .notice_announcement .notice_title .notice_title_right {
        position: relative;
        bottom: auto;
        right: auto;
        margin-top: 10px;
    }

    .recent_attention .recent_content,
    .notice_announcement .notice_content {
        margin-top: 15px;
        height: auto;
    }

    .recent_attention .recent_content ul li,
    .notice_announcement .notice_content ul li {
        float: none;
        margin-left: 0;
        width: 100%;
        height: auto;
        padding: 12px 15px;
    }

    .recent_attention .recent_content ul li a,
    .notice_announcement .notice_content ul li a {
        display: flex;
        align-items: center;
    }

    .recent_attention .recent_content ul li a .day,
    .notice_announcement .notice_content ul li a .day {
        position: relative;
        top: auto;
        left: auto;
        width: auto;
        font-size: 20px;
        margin-right: 10px;
    }

    .recent_attention .recent_content ul li a .month,
    .notice_announcement .notice_content ul li a .month {
        position: relative;
        top: auto;
        left: auto;
        font-size: 10px;
        margin-right: 15px;
    }

    .recent_attention .recent_content ul li a .xian,
    .notice_announcement .notice_content ul li a .xian {
        display: none;
    }

    .recent_attention .recent_content ul li a h4,
    .notice_announcement .notice_content ul li a h4 {
        position: relative;
        left: auto;
        height: auto;
        font-size: 14px;
        line-height: 1.4;
        flex: 1;
    }

    .recent_attention .recent_content ul li a .jianto,
    .notice_announcement .notice_content ul li a .jianto {
        position: relative;
        top: auto;
        right: auto;
        opacity: 0.7;
        visibility: visible;
        width: 30px;
        height: 30px;
        margin-left: 10px;
    }

    /* 快速链接移动端 */
    .section3 {
        background: none;
    }

    .links {
        padding-top: 15px;
        height: auto;
    }

    .links .links_title {
        height: auto;
        margin-bottom: 15px;
    }

    .links .links_title h2 {
        font-size: 24px;
        position: relative;
        bottom: auto;
        padding-left: 10px;
    }

    .links .links_title i {
        font-size: 14px;
        position: relative;
        top: auto;
        left: auto;
        padding-left: 10px;
    }

    .links .links_content {
        margin-top: 20px;
        height: auto;
    }

    .links .links_content ul {
        padding: 0;
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }

    .links .links_content ul li {
        width: 100%;
    }

    .links .links_content ul li:not(:last-child)::after {
        display: none;
    }

    .links .links_content ul li a {
        width: 80px;
        height: 80px;
        margin: 0 auto;
    }

    .links .links_content ul li a img {
        width: 48px;
        height: 48px;
    }

    .links .links_content ul li span {
        font-size: 14px;
        margin-top: 10px;
        white-space: normal;
        text-align: center;
    }

    /* 页尾移动端 */
    .footer {
        height: auto;
    }

    .footer .footer_content {
        height: auto;
        padding: 30px 15px;
        display: flex;
        flex-direction: column;
        gap: 20px;
    }

    .footer .footer_content_left {
        position: relative;
        top: auto;
        left: auto;
        width: 100%;
        border-right: none;
        border-bottom: 1px solid #fff;
        padding: 0 0 20px 0;
        height: auto;
    }

    .footer .footer_content_center {
        position: relative;
        top: auto;
        left: auto;
        width: 100%;
        padding-top: 0;
        height: auto;
        text-align: center;
    }

    .footer .footer_content_center img {
        position: relative;
        top: auto;
        left: auto;
        transform: none;
        width: 200px;
        height: auto;
    }

    .footer .footer_content_right {
        position: relative;
        top: auto;
        right: auto;
        width: 100%;
        border-left: none;
        border-top: 1px solid #fff;
        padding: 20px 0 0 0;
        height: auto;
        text-align: center;
    }

    .footer .footer_content_right p {
        position: relative;
        left: auto;
        text-align: center;
    }

    .footer .footer_content_right h3 {
        position: relative;
        right: auto;
        bottom: auto;
        font-size: 28px;
        text-align: center;
    }

    .copyright p {
        font-size: 11px;
        padding: 0 10px;
        text-align: center;
    }
}

/* 小屏移动设备 (最大480px) */
@media screen and (max-width: 480px) {
    .main_w {
        width: 98%;
    }

    header .nav .logo {
        height: 40px;
    }

    header .nav .logo img {
        height: 40px;
    }

    .banner {
        height: 40vh;
        min-height: 250px;
    }

    .xueyuan_news .news_title .news_title_left h2,
    .recent_attention .recent_title .recent_title_left h2,
    .notice_announcement .notice_title .notice_title_left h2,
    .links .links_title h2 {
        font-size: 20px;
    }

    .xueyuan_news .news_content .news_content_left_text {
        padding: 10px;
    }

    .links .links_content ul {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer .footer_content_right h3 {
        font-size: 24px;
    }
}