/* 首页样式 - */

/* ========== 轮播图区域样式 ========== */

/* ========== 轮播图区域样式 ========== */
.banner {
    position: relative;
    width: 100%;
}

.banner .bans {
    position: relative;
    width: 100%;
}

.banner .bans_bg {
    display: none;
}

.banner .ban_in {
    position: relative;
    width: 100%;
    max-width: 100%;
}

.banner .slideBox {
    position: relative;
    overflow: hidden;
    width: 100%;
    height: 432px;
}

.banner .slideBox .bd {
    position: relative;
    width: 100%;
    height: 100%;
}

.banner .slideBox .bd ul {
    width: 100%;
    position: relative;
    height: 432px;
}

.banner .slideBox .bd li {
    position: absolute;
    width: 100%;
    left: 0;
    top: 0;
    transition: opacity 1.2s ease, transform 1.2s ease;
}

.banner .slideBox .bd li img {
    width: 100%;
    height: 432px;
    object-fit: cover;
    display: block;
}

.banner .slideBox .bd li .li_in {
    position: relative;
    width: 100%;
    height: 100%;
}

.banner .slideBox .bd li .li_in a {
    display: block;
    height: 100%;
    width: 100%;
}

.banner .slideBox .bd li .li_in img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 0;
    box-shadow: none;
}

/* 轮播图导航按钮 */
.banner .slideBox .hd.bb {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    padding: 0 20px;
    z-index: 10;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.banner .slideBox:hover .hd.bb {
    opacity: 1;
}

.banner .slideBox .hd.bb .prev,
.banner .slideBox .hd.bb .next {
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.banner .slideBox .hd.bb .prev:hover,
.banner .slideBox .hd.bb .next:hover {
    background: #fff;
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.banner .slideBox .hd.bb .prev::after,
.banner .slideBox .hd.bb .next::after {
    content: '';
    width: 10px;
    height: 10px;
    border-top: 2px solid #333;
    border-right: 2px solid #333;
}

.banner .slideBox .hd.bb .prev::after {
    transform: rotate(-135deg);
    margin-left: 4px;
}

.banner .slideBox .hd.bb .next::after {
    transform: rotate(45deg);
    margin-right: 4px;
}

/* 底部功能导航栏美化 */
.banner .fath_path {
    position: relative;
    width: 100%;
    padding: 20px 0 30px;
}

.banner .fath_path ul {
    display: flex;
    justify-content: center;
    gap: 16px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.banner .fath_path ul li {
    flex: 1;
    max-width: 200px;
}

.banner .fath_path ul li a {
    display: block;
    padding: 0;
    text-decoration: none;
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.banner .fath_path ul li a:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.banner .fath_path ul li a img {
    display: block;
    width: 100%;
    height: auto;
    max-width: 200px;
}

.banner .fath_path ul li a span em {
    display: block;
    font-style: normal;
    font-size: 11px;
    font-weight: 400;
    margin-bottom: 4px;
    color: #333;
}

/* ========== 首页专用样式 - 新闻视频区域 ========== */
.box_newsvid {
    padding: 40px 0;
    background: #ffffff;
}

.box_newsvid .inner {
    max-width: 1200px;
    margin: 0 auto;
}

.box_newsvid .newsvid_con {
    display: flex;
    gap: 30px;
    align-items: stretch;
}

.box_newsvid .vid {
    flex: 0 0 500px;
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    background: #000;
    height: 320px;
}

.box_newsvid .vid video {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 12px;
}

.box_newsvid .rigtxt {
    flex: 1;
    background: #fff;
    border-radius: 12px;
    display: flex;
    width: 100%;
    height: 320px;
    overflow-y: scroll;
    flex-direction: column;
}

.box_newsvid .rigtxt-header {
    border-bottom: 1px solid #eee;
    padding-bottom: 14px;
    margin-bottom: 14px;
}

.box_newsvid .news-tabs {
    display: flex;
    gap: 24px;
}

.box_newsvid .news-tabs span {
    padding: 6px 0;
    font-size: 14px;
    color: #999;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
    background: transparent;
}

.box_newsvid .news-tabs span:hover {
    color: #666;
}

/* 传智动态 - 橙色 */
.box_newsvid .news-tabs span:nth-child(1).cur,
.box_newsvid .news-tabs span:nth-child(1):hover {
    border-bottom-color: #FE720A;
    color: #FE720A;
}

/* 大学动态 - 绿色 */
.box_newsvid .news-tabs span:nth-child(2).cur,
.box_newsvid .news-tabs span:nth-child(2):hover {
    border-bottom-color: #52C41A;
    color: #52C41A;
}

/* IT资讯 - 橙色 */
.box_newsvid .news-tabs span:nth-child(3).cur,
.box_newsvid .news-tabs span:nth-child(3):hover {
    border-bottom-color: #FA8C16;
    color: #FA8C16;
}

/* 研究院 - 紫色 */
.box_newsvid .news-tabs span:nth-child(4).cur,
.box_newsvid .news-tabs span:nth-child(4):hover {
    border-bottom-color: #722ED1;
    color: #722ED1;
}

/* 高校合作 - 蓝色 */
.box_newsvid .news-tabs span:nth-child(5).cur,
.box_newsvid .news-tabs span:nth-child(5):hover {
    border-bottom-color: #1890ff;
    color: #1890ff;
}

/* 选中样式增强 - PC端 */
.box_newsvid .news-tabs span.cur {
    font-weight: 600;
    position: relative;
}

.box_newsvid .news-tabs span.cur::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    background: inherit;
    border-radius: 50%;
}

.box_newsvid .list_main {
    margin-bottom: 0;
    flex: 1;
    overflow: hidden;
}

.box_newsvid .list_main ul {
    display: none;
}

.box_newsvid .list_main ul.cur {
    display: block;
}

.box_newsvid .list_main ul li {
    padding: 9px 0;
    border-bottom: 1px solid #f5f5f5;
}

.box_newsvid .list_main ul li:last-child {
    border-bottom: none;
}

.box_newsvid .list_main ul li a {
    display: flex;
    align-items: center;
    font-size: 14px;
    color: #333;
    line-height: 1.5;
    text-decoration: none;
    transition: color 0.3s ease;
}

.box_newsvid .list_main ul li a::before {
    content: "";
    display: inline-block;
    width: 5px;
    height: 5px;
    background: var(--tab-color, #0C77FF);
    border-radius: 50%;
    margin-right: 10px;
    flex-shrink: 0;
    transition: background 0.3s ease;
}

.box_newsvid .list_main ul li a:hover {
    color: var(--tab-color, #0C77FF);
}

.box_newsvid .list_main ul li a:hover::before {
    background: var(--tab-color, #0C77FF);
}

.ban .slideBox:hover .bb {
    display: block;
}

.ban .slideBox .prev,
.ban .slideBox .next {
    position: absolute;
    left: 0;
    top: 0;
    display: block;
    width: 32px;
    height: 40px;
    background: url(../images/slider-arrow.png) -110px 5px no-repeat;
    filter: alpha(opacity=50);
    opacity: 0.5;
    border-radius: 3px;
}

.ban .slideBox .next {
    left: auto;
    right: 0;
    background-position: 8px 5px;
}

.ban .slideBox .prev:hover,
.ban .slideBox .next:hover {
    filter: alpha(opacity=100);
    opacity: 1;
}

.ban .slideBox .prevStop {
    display: none;
}

.ban .slideBox .nextStop {
    display: none;
}

.ban .slideban .prev,
.ban .slideban .next {
    background-color: #3A394F;
    padding: 10px 0;
    background-position: -110px 14px;
}

.ban .slideban .next {
    background-position: 8px 14px;
}

@media only screen and (max-width: 768px) {
    /* 头部固定 */
    .header {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 1000;
        background: #fff;
    }

    .header-container {
        height: 56px;
        padding: 0 15px;
    }

    /* 汉堡菜单按钮 */
    .mobile-menu-toggle {
        display: flex !important;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        width: 40px;
        height: 40px;
        cursor: pointer;
        z-index: 1001;
        position: relative;
        background: transparent;
        border: none;
    }

    .mobile-menu-toggle span {
        display: block;
        width: 24px;
        height: 2.5px;
        background: #333;
        margin: 3px 0;
        border-radius: 2px;
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

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

    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
        transform: translateX(-10px);
    }

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

    /* 导航菜单 - 侧边抽屉式 */
    .header-nav {
        position: fixed !important;
        top: 56px;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0,0,0,0.5);
        z-index: 999;
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        flex: initial;
        justify-content: flex-start;
    }

    .header-nav.active {
        opacity: 1 !important;
        visibility: visible !important;
    }

    .nav-menu {
        display: flex !important;
        flex-direction: column;
        position: absolute;
        top: 0;
        left: 0;
        width: 80%;
        max-width: 300px;
        height: 100%;
        background: #fff;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
        margin: 0;
        padding: 0;
        list-style: none;
        transform: translateX(-100%);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        overflow-y: auto;
    }

    .header-nav.active .nav-menu {
        transform: translateX(0);
    }

    .nav-item {
        width: 100%;
        border-bottom: 1px solid #eee;
        font-size: 15px;
    }

    .nav-item > a {
        display: flex !important;
        align-items: center;
        justify-content: space-between;
        padding: 12px 15px !important;
        color: #333;
        font-size: 15px;
        font-weight: 500;
        text-decoration: none;
        transition: all 0.2s;
        height: auto !important;
        white-space: normal;
    }

    .nav-item.has-dropdown > a::after {
        content: '›';
        font-size: 20px;
        color: #999;
        display: flex;
        align-items: center;
        justify-content: center;
        align-self: center;
        margin-left: auto;
        border: none !important;
        transform: none !important;
    }

    .nav-item.has-dropdown.active > a::after,
    .nav-item.has-dropdown.open > a::after {
        transform: rotate(90deg) !important;
    }

    .nav-item.active > a {
        color: #FE720A;
    }

    /* 下拉菜单 - 移动端 */
    .dropdown-menu {
        display: none !important;
        position: static !important;
        transform: none !important;
        width: 100% !important;
        background: #f8f9fb !important;
        padding: 0 !important;
        box-shadow: none !important;
    }
    .banner .slideBox .hd.bb .prev,
    .banner .slideBox .hd.bb .next {
        width: 38px;
        height: 38px;
    }
    .nav-item.has-dropdown.open > .dropdown-menu,
    .nav-item.has-dropdown.active > .dropdown-menu {
        display: block !important;
    }

    .dropdown-menu a {
        display: flex !important;
        align-items: center;
        padding: 12px 15px 12px 30px !important;
        border-bottom: 1px solid #eee;
        font-size: 14px;
        color: #666;
        text-decoration: none;
        height: auto !important;
    }

    .dropdown-menu a:last-child {
        border-bottom: none;
    }

    /* 隐藏全部课程下拉 */
    .dropdown-full {
        display: none !important;
    }

    /* 给移动端内容区添加顶部间距 */
    body {
        padding-top: 56px;
    }

    .logo img {
        height: 32px;
    }

    /* 移动端Banner轮播图 */
    .banner {
        overflow: hidden;
    }

    .banner .bans {
        position: relative;
        width: 100%;
        overflow: hidden;
    }

    .banner .ban_in {
        width: 100%;
        overflow: hidden;
    }

    .banner .slideBox {
        position: relative;
        width: 100%;
        overflow: hidden;
    }

    .banner .slideBox .bd {
        position: relative;
        width: 100%;
        overflow: hidden;
    }

    .banner .slideBox .bd ul {
        width: 100%;
        position: relative;
        overflow: hidden;
    }

    .banner .slideBox .bd li {
        position: absolute;
        width: 100%;
        left: 0;
        top: 0;
        overflow: hidden;
    }

    .banner .slideBox .bd li .li_in {
        position: relative;
        width: 100%;
        height: 100%;
        overflow: hidden;
    }

    .banner .slideBox .bd li .li_in a {
        display: block;
        width: 100%;
        height: 100%;
        overflow: hidden;
    }

    .banner .slideBox .bd li .li_in img,
    .banner .slideBox .bd li img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        display: block;
    }

    .banner .hd.bb {
        display: flex !important;
        justify-content: space-between;
        position: absolute;
        top: 50%;
        left: 0;
        right: 0;
        transform: translateY(-50%);
        padding: 0 12px;
        z-index: 10;
        pointer-events: none;
    }

    .banner .hd.bb a {
        pointer-events: auto;
        width: 14px;
        height: 14px;
        background: rgba(255, 255, 255, 0.9);
        border-radius: 50%;
        display: flex !important;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        box-shadow: 0 1px 5px rgba(0, 0, 0, 0.12);
        transition: all 0.3s ease;
    }

    .banner .hd.bb a.prev::before {
        transform: rotate(-135deg);
        margin-left: 1px;
    }

    .banner .hd.bb a.next::before {
        transform: rotate(45deg);
        margin-right: 1px;
    }

    .banner .hd.bb a:hover {
        background: #fff;
        transform: scale(1.15);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    }

    /* 隐藏移动端轮播指示器 */
    .banner .slideBox .hd.mobile-indicator {
        display: none !important;
    }

    /* 快速入口优化 */
    .banner .fath_path {
        padding: 15px;
    }

    .banner .fath_path ul {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
        padding: 0;
    }

    .banner .fath_path ul li {
        width: 100%;
    }

    .banner .fath_path ul li a {
        display: block;
        padding: 0;
        border-radius: 12px;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
    }

    .banner .fath_path ul li a img {
        width: 100%;
        height: auto;
        display: block;
    }

    .banner .fath_path ul li:nth-child(4),
    .banner .fath_path ul li:nth-child(5) {
        grid-column: span 1;
    }

    .banner .fath_path ul li:nth-child(4),
    .banner .fath_path ul li:nth-child(5) {
        justify-self: center;
    }

    /* ========== 新闻视频区域 - 移动端优化 ========== */
    .box_newsvid {
        padding: 0;
        background: #f5f7fb;
    }

    .box_newsvid .inner {
        padding: 0;
        max-width: 100%;
    }

    .box_newsvid .newsvid_con {
        flex-direction: column;
        gap: 0;
    }

    /* 视频区域 */
    .box_newsvid .vid {
        width: 100%;
        flex: none;
        margin-bottom: 0;
        border-radius: 0;
        height: auto;
        aspect-ratio: 16 / 9;
        background: #000;
        display: none;
    }

    .box_newsvid .vid video {
        width: 100%;
        height: 100%;
        object-fit: cover;
        border-radius: 0;
    }

    /* 新闻列表区域 */
    .box_newsvid .rigtxt {
        width: 100%;
        height: auto;
        max-height: none;
        border-radius: 16px 16px 0 0;
        margin-top: -16px;
        position: relative;
        z-index: 10;
        overflow: visible;
        flex: none;
        background: #fff;
        padding: 16px;
        box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08);
    }

    /* 标签栏 */
    .box_newsvid .news-tabs {
        display: flex;
        gap: 0;
        border-bottom: 1px solid #eee;
        padding-bottom: 12px;
        margin-bottom: 12px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    .box_newsvid .news-tabs::-webkit-scrollbar {
        display: none;
    }

    .box_newsvid .news-tabs span {
        flex-shrink: 0;
        padding: 8px 16px;
        font-size: 14px;
        color: #666;
        border: none;
        border-bottom: 2px solid transparent;
        border-radius: 0;
        background: transparent;
        margin-bottom: -13px;
        transition: all 0.25s ease;
        touch-action: manipulation;
    }

    .box_newsvid .news-tabs span:active {
        transform: scale(0.95);
        opacity: 0.7;
    }

    .box_newsvid .news-tabs span:nth-child(1).cur,
    .box_newsvid .news-tabs span:nth-child(1):hover {
        border-bottom-color: #FE720A;
        color: #FE720A;
    }

    .box_newsvid .news-tabs span:nth-child(2).cur,
    .box_newsvid .news-tabs span:nth-child(2):hover {
        border-bottom-color: #52C41A;
        color: #52C41A;
    }

    .box_newsvid .news-tabs span:nth-child(3).cur,
    .box_newsvid .news-tabs span:nth-child(3):hover {
        border-bottom-color: #FA8C16;
        color: #FA8C16;
    }

    .box_newsvid .news-tabs span:nth-child(4).cur,
    .box_newsvid .news-tabs span:nth-child(4):hover {
        border-bottom-color: #722ED1;
        color: #722ED1;
    }

    .box_newsvid .news-tabs span:nth-child(5).cur,
    .box_newsvid .news-tabs span:nth-child(5):hover {
        border-bottom-color: #1890ff;
        color: #1890ff;
    }

    /* 移动端选中样式增强 */
    .box_newsvid .news-tabs span.cur {
        font-weight: 600;
    }

    /* 新闻列表 */
    .box_newsvid .list_main {
        max-height: 280px;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        -ms-overflow-style: none;
    }

    .box_newsvid .list_main::-webkit-scrollbar {
        display: none;
    }

    .box_newsvid .list_main ul {
        padding: 0 4px;
    }

    .box_newsvid .list_main ul li {
        padding: 12px 0;
        border-bottom: 1px solid #f5f5f5;
    }

    .box_newsvid .list_main ul li:last-child {
        border-bottom: none;
    }

    .box_newsvid .list_main ul li a {
        display: flex;
        align-items: flex-start;
        font-size: 14px;
        color: #333;
        line-height: 1.5;
        text-decoration: none;
        transition: color 0.2s ease;
        touch-action: manipulation;
    }

    .box_newsvid .list_main ul li a:active {
        color: #FE720A;
    }

    .box_newsvid .list_main ul li a::before {
        content: "";
        display: inline-block;
        width: 6px;
        height: 6px;
        background: #FE720A;
        border-radius: 50%;
        margin-right: 10px;
        margin-top: 7px;
        flex-shrink: 0;
        transition: background 0.2s ease;
    }

    .box_newsvid .list_main ul li a:hover {
        color: #FE720A;
    }

    .box_newsvid .list_main ul li a:hover::before {
        background: #FE720A;
    }

    .box_newsvid .rigtxt-header {
        border-bottom: none;
        padding-bottom: 0;
        margin-bottom: 0;
    }

    /* 隐藏 br 标签 */
    .box_newsvid .rigtxt > br {
        display: none;
    }

    /* ========== 免费教程区域 - 移动端优化 ========== */
    .box_freeTutorial {
        padding: 30px 0 50px;
        background: linear-gradient(180deg, #f8f9fb 0%, #fff 100%);
    }

    .box_freeTutorial::before {
        height: 3px;
    }

    .box_freeTutorial .inner {
        padding: 0;
    }

    .box_freeTutorial .box_hd {
        text-align: left;
        padding: 0 15px;
        margin-bottom: 24px;
    }

    .box_freeTutorial .box_hd::before {
        top: -20px;
        width: 50px;
        height: 3px;
    }

    .box_freeTutorial .box_hd h2 {
        font-size: 22px;
        line-height: 1.4;
        font-weight: 700;
        letter-spacing: -0.3px;
    }

    .box_freeTutorial .box_hd h2 span {
        display: inline;
    }

    .box_freeTutorial .box_hd h2 span::after {
        height: 2px;
        bottom: -2px;
    }

    .box_freeTutorial .box_hd p {
        justify-content: flex-start;
        font-size: 12px;
        margin-top: 10px;
        line-height: 1.6;
        flex-wrap: wrap;
    }

    .box_freeTutorial .box_hd p a {
        display: inline-block;
        margin-left: 6px;
        padding: 4px 12px;
        background: linear-gradient(135deg, #FE720A 0%, #FF9500 100%);
        color: #fff;
        border-radius: 12px;
        font-size: 11px;
        font-weight: 600;
        transition: all 0.3s ease;
    }

    .box_freeTutorial .box_hd p a:hover {
        background: linear-gradient(135deg, #e66600 0%, #e68500 100%);
        transform: scale(1.05);
    }

    .box_freeTutorial .box_hd p a:active {
        transform: scale(0.95);
    }

    .box_freeTutorial .freeTutorial_con {
        flex-direction: column;
        gap: 20px;
    }

    /* 直播公开课 - 移动端 */
    .box_freeTutorial .openclass {
        flex: none;
        width: 100%;
        padding: 0 15px;
    }

    .box_freeTutorial .openclass .main {
        border-radius: 16px;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        border: 1px solid rgba(254, 114, 10, 0.1);
    }

    .box_freeTutorial .openclass .opentop {
        font-size: 13px;
        padding: 10px 14px;
        gap: 8px;
    }

    .box_freeTutorial .openclass .opentop::before {
        width: 8px;
        height: 8px;
    }

    .box_freeTutorial .openclass .openpic {
        position: relative;
        background: #1a1a2e;
    }

    .box_freeTutorial .openclass .openpic img {
        height: 180px;
        opacity: 0.9;
    }

    .box_freeTutorial .openclass .main:hover .openpic img {
        transform: scale(1.05);
        opacity: 0.85;
    }

    .box_freeTutorial .openclass .openpic::after {
        width: 56px;
        height: 56px;
        background: rgba(255, 255, 255, 0.95);
    }

    .box_freeTutorial .openclass .openpic::before {
        border-width: 11px 0 11px 18px;
        border-color: transparent transparent transparent #FE720A;
    }

    .box_freeTutorial .openclass .main:active {
        transform: scale(0.98);
    }

    .box_freeTutorial .openclass .main:active .openpic::after,
    .box_freeTutorial .openclass .main:active .openpic::before {
        transform: translate(-50%, -50%) scale(0.9);
    }

    .box_freeTutorial .openclass .openconp2 {
        font-size: 14px;
        padding: 14px 14px 8px;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
        line-height: 1.5;
    }

    .box_freeTutorial .openclass .openconp3 {
        font-size: 11px;
        padding: 0 14px 12px;
        line-height: 1.7;
        max-height: 65px;
        overflow: hidden;
    }

    .box_freeTutorial .openclass .openconp3 span {
        display: inline-block;
        margin-right: 8px;
        margin-bottom: 0;
    }

    .box_freeTutorial .openclass .openconp4 {
        padding: 12px 14px;
        font-size: 11px;
    }

    .box_freeTutorial .openclass .openconp4 a {
        font-size: 12px;
        padding: 8px 16px;
    }

    .box_freeTutorial .openclass .openconp4 a:active {
        transform: scale(0.95);
    }

    /* 教程资源区 - 移动端 */
    .box_freeTutorial .resources {
        width: 100%;
        border-radius: 0;
        padding: 15px;
        box-shadow: none;
        background: #f8f9fb;
    }

    .box_freeTutorial .resources_con {
        margin: -15px;
        padding: 15px;
        background: #fff;
        border-radius: 16px 16px 0 0;
        box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.05);
    }

    .box_freeTutorial .resources_con ol {
        display: flex;
        flex-wrap: nowrap;
        overflow-x: auto;
        gap: 10px;
        margin-bottom: 16px;
        padding-bottom: 12px;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }

    .box_freeTutorial .resources_con ol::-webkit-scrollbar {
        display: none;
    }

    .box_freeTutorial .resources_con ol li {
        flex-shrink: 0;
        padding: 8px 14px;
        font-size: 13px;
        border-radius: 20px;
        font-weight: 500;
        touch-action: manipulation;
    }

    .box_freeTutorial .resources_con ol li:active {
        transform: scale(0.95);
        opacity: 0.8;
    }

    /* 课程网格 - 移动端改为2列 */
    .box_freeTutorial .lay_con {
        margin-top: 0;
    }

    .box_freeTutorial .lay_con ul.cur {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
        padding: 0 4px;
    }

    .box_freeTutorial .lay_con ul {
        display: none;
    }

    .box_freeTutorial .lay_con ul li {
        border-radius: 14px;
        overflow: hidden;
        box-shadow: 0 3px 12px rgba(0, 0, 0, 0.08);
        border: 1px solid rgba(0, 0, 0, 0.04);
    }

    .box_freeTutorial .lay_con ul li:active {
        transform: scale(0.98);
    }

    .box_freeTutorial .lay_con ul li a {
        display: flex;
        flex-direction: column;
    }

    .box_freeTutorial .lay_con ul li .img_box {
        height: 100px;
        position: relative;
        background: linear-gradient(135deg, #f0f2f5 0%, #e5e7eb 100%);
    }

    .box_freeTutorial .lay_con ul li .img_box img.mask_img1 {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }

    .box_freeTutorial .lay_con ul li:hover .img_box img.mask_img1 {
        transform: scale(1.1);
    }

    .box_freeTutorial .lay_con ul li .img_box .sy_mask {
        display: none;
    }

    .box_freeTutorial .lay_con ul li .btm {
        padding: 10px 12px;
        background: #fff;
    }

    .box_freeTutorial .lay_con ul li .btm p {
        font-size: 12px;
        color: #333;
        line-height: 1.4;
    }

    .box_freeTutorial .lay_con ul li .btm p .span1 {
        font-size: 10px;
        color: #52C41A;
        margin-top: 4px;
    }

    .box_freeTutorial .lay_con ul li .btm p .span1::before {
        width: 5px;
        height: 5px;
        margin-right: 4px;
    }
}

/* 小屏手机进一步适配 */
@media screen and (max-width: 375px) {
    .box_freeTutorial {
        padding: 25px 0 40px;
    }

    .box_freeTutorial::before {
        height: 2px;
    }

    .box_freeTutorial .box_hd {
        padding: 0 12px;
        margin-bottom: 20px;
    }

    .box_freeTutorial .box_hd::before {
        width: 40px;
        height: 2px;
    }

    .box_freeTutorial .box_hd h2 {
        font-size: 18px;
        line-height: 1.4;
    }

    .box_freeTutorial .box_hd h2 span {
        display: inline;
        font-size: 18px;
    }

    .box_freeTutorial .box_hd h2 span::after {
        height: 2px;
        bottom: -2px;
    }

    .box_freeTutorial .box_hd p {
        font-size: 11px;
        margin-top: 8px;
        line-height: 1.5;
    }

    .box_freeTutorial .box_hd p a {
        font-size: 10px;
        padding: 3px 8px;
        margin-left: 4px;
        border-radius: 10px;
    }

    .box_freeTutorial .freeTutorial_con {
        gap: 16px;
    }

    .box_freeTutorial .openclass .opentop {
        font-size: 12px;
        padding: 8px 12px;
    }

    .box_freeTutorial .openclass .openpic img {
        height: 160px;
    }

    .box_freeTutorial .openclass .openpic::after {
        width: 50px;
        height: 50px;
    }

    .box_freeTutorial .openclass .openpic::before {
        border-width: 10px 0 10px 16px;
    }

    .box_freeTutorial .openclass .openconp2 {
        font-size: 13px;
        padding: 12px 12px 6px;
    }

    .box_freeTutorial .openclass .openconp3 {
        font-size: 10px;
        padding: 0 12px 10px;
        max-height: 55px;
    }

    .box_freeTutorial .openclass .openconp4 {
        padding: 10px 12px;
    }

    .box_freeTutorial .openclass .openconp4 a {
        font-size: 11px;
        padding: 6px 14px;
    }

    .box_freeTutorial .resources_con ol li {
        padding: 6px 12px;
        font-size: 12px;
    }

    .box_freeTutorial .lay_con ul.cur {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .box_freeTutorial .lay_con ul li .img_box {
        height: 85px;
    }

    .box_freeTutorial .lay_con ul li .btm {
        padding: 8px 10px;
    }

    .box_freeTutorial .lay_con ul li .btm p {
        font-size: 11px;
    }

    .box_freeTutorial .lay_con ul li .btm p .span1 {
        font-size: 9px;
    }
}

/* 超小屏手机适配 (320px) */
@media screen and (max-width: 320px) {
    .box_freeTutorial .box_hd h2 {
        font-size: 16px;
    }

    .box_freeTutorial .box_hd h2 span {
        font-size: 16px;
    }

    .box_freeTutorial .lay_con ul.cur {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }

    .box_freeTutorial .lay_con ul li .img_box {
        height: 75px;
    }

    .box_freeTutorial .openclass .openpic img {
        height: 140px;
    }
}

/* ========== 首页课程中心区块 ========== */
.index-courses {
    background: linear-gradient(180deg, #f8f9fa 0%, #ffffff 100%);
    padding: 60px 0 80px;
}

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

/* ========== 首页学员成功案例区块 ========== */
.index-students-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========== 首页荣誉展示区块 ========== */
.index-honor-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.index-courses-header {
    text-align: center;
    margin-bottom: 40px;
}

.index-courses-title {
    font-size: 32px;
    font-weight: 700;
    color: #1a1a2e;
    margin-bottom: 12px;
    position: relative;
    display: inline-block;
}

.index-courses-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #FF6B35, #FF8F66);
    border-radius: 2px;
}

.index-courses-title span {
    display: block;
    font-size: 16px;
    font-weight: 400;
    color: #666;
    margin-top: 16px;
}

.index-courses-subtitle {
    font-size: 15px;
    color: #888;
    margin-top: 20px;
}

/* 分类筛选区域 */
.index-courses-filter {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-bottom: 36px;
    padding: 0 20px;
}

.filter-scroll-wrapper {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding: 4px 0;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.filter-scroll-wrapper::-webkit-scrollbar {
    display: none;
}

.filter-tab {
    flex-shrink: 0;
    padding: 10px 20px;
    font-size: 14px;
    color: #666;
    background: #fff;
    border: 1px solid #e8e8e8;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.filter-tab:hover {
    border-color: #FF6B35;
    color: #FF6B35;
}

.filter-tab.active {
    background: linear-gradient(135deg, #FF6B35 0%, #FF8F66 100%);
    border-color: #FF6B35;
    color: #fff;
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
}

.filter-more {
    flex-shrink: 0;
    font-size: 14px;
    color: #FF6B35;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: all 0.3s ease;
}

.filter-more:hover {
    color: #FF8F66;
}

.filter-more .icon-arrow {
    width: 0;
    height: 0;
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;
    border-left: 6px solid currentColor;
}

/* 课程网格 */
.index-courses-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    max-width: 1400px;
    margin: 0 auto;
}

/* 首页课程卡片 */
.index-courses-grid .course-card {
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    border: 1px solid #e8e8e8;
    display: flex;
    flex-direction: column;
}

.index-courses-grid .course-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(255, 107, 53, 0.15);
    border-color: #FF8F66;
}

.index-courses-grid .course-card-image {
    position: relative;
    height: 180px;
    overflow: hidden;
    background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
}

.index-courses-grid .course-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.index-courses-grid .course-card:hover .course-card-image img {
    transform: scale(1.08);
}

.index-courses-grid .course-card-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 6px 14px;
    font-size: 12px;
    font-weight: 600;
    color: #fff;
    border-radius: 20px;
    background: linear-gradient(135deg, #FF6B35 0%, #FF8F66 100%);
    box-shadow: 0 2px 10px rgba(255, 107, 53, 0.4);
}

.index-courses-grid .course-card-duration {
    position: absolute;
    bottom: 12px;
    right: 12px;
    padding: 4px 10px;
    font-size: 12px;
    color: #fff;
    background: rgba(0, 0, 0, 0.6);
    border-radius: 12px;
    backdrop-filter: blur(4px);
}

.index-courses-grid .course-card-content {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.index-courses-grid .course-card-title {
    font-size: 17px;
    font-weight: 600;
    color: #333;
    margin-bottom: 10px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 48px;
}

.index-courses-grid .course-card-desc {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 14px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}

.index-courses-grid .course-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 14px;
    border-top: 1px solid #e8e8e8;
}

.index-courses-grid .course-card-teacher {
    display: flex;
    align-items: center;
    gap: 8px;
}

.index-courses-grid .course-card-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: linear-gradient(135deg, #FF6B35 0%, #FF8F66 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 12px;
    font-weight: 600;
}

.index-courses-grid .course-card-teacher span {
    font-size: 13px;
    color: #fff;
}

.index-courses-grid .course-card-teacher span:nth-child(2) {
    font-size: 13px;
    color: #333;
}

.index-courses-grid .course-card-price {
    font-size: 18px;
    font-weight: 700;
    color: #FF6B35;
}

.index-courses-grid .course-card-price.free {
    color: #10B981;
}

/* 查看更多按钮 */
.index-courses-more {
    text-align: center;
    margin-top: 40px;
}

.btn-more {
    display: inline-block;
    padding: 14px 40px;
    font-size: 15px;
    font-weight: 500;
    color: #fff;
    background: linear-gradient(135deg, #FF6B35 0%, #FF8F66 100%);
    border-radius: 30px;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(255, 107, 53, 0.3);
}

.btn-more:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(255, 107, 53, 0.4);
}

/* ========== 首页课程中心 - 移动端适配 ========== */
@media screen and (max-width: 1200px) {
    .index-courses-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
}

@media screen and (max-width: 992px) {
    .index-courses {
        padding: 50px 0 60px;
    }

    .index-courses-container {
        padding: 0 12px;
    }

    .index-courses-title {
        font-size: 28px;
    }

    .index-courses-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .index-courses-grid .course-card-image {
        height: 160px;
    }
}

@media screen and (max-width: 768px) {
    .index-courses {
        padding: 40px 0 50px;
    }

    .index-courses-header {
        margin-bottom: 24px;
    }

    .index-courses-title {
        font-size: 24px;
    }

    .index-courses-title span {
        font-size: 14px;
    }

    .index-courses-subtitle {
        font-size: 13px;
        margin-top: 12px;
    }

    .index-courses-filter {
        flex-direction: column;
        gap: 16px;
        padding: 0;
        margin-bottom: 24px;
    }

    .filter-scroll-wrapper {
        width: 100%;
        justify-content: flex-start;
        padding: 0 16px;
        margin: 0 -16px;
        padding-left: 16px;
        padding-right: 16px;
    }

    .filter-tab {
        padding: 8px 16px;
        font-size: 13px;
    }

    .filter-more {
        font-size: 13px;
    }

    .index-courses-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
        padding: 0 12px;
    }

    .index-courses-grid .course-card-image {
        height: 130px;
    }

    .index-courses-grid .course-card-content {
        padding: 14px;
    }

    .index-courses-grid .course-card-title {
        font-size: 14px;
        min-height: 40px;
        margin-bottom: 8px;
    }

    .index-courses-grid .course-card-desc {
        font-size: 12px;
        margin-bottom: 10px;
        -webkit-line-clamp: 2;
    }

    .index-courses-grid .course-card-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
        padding-top: 10px;
    }

    .index-courses-grid .course-card-avatar {
        width: 24px;
        height: 24px;
        font-size: 11px;
    }

    .index-courses-grid .course-card-teacher span {
        font-size: 12px;
    }

    .index-courses-grid .course-card-price {
        font-size: 16px;
    }

    .index-courses-grid .course-card-badge {
        padding: 4px 10px;
        font-size: 11px;
        top: 8px;
        left: 8px;
    }

    .index-courses-grid .course-card-duration {
        padding: 3px 8px;
        font-size: 11px;
        bottom: 8px;
        right: 8px;
    }

    .index-courses-more {
        margin-top: 30px;
    }

    .btn-more {
        padding: 12px 32px;
        font-size: 14px;
    }
}

@media screen and (max-width: 480px) {
    .index-courses {
        padding: 30px 0 40px;
    }

    .index-courses-header {
        margin-bottom: 20px;
    }

    .index-courses-title {
        font-size: 20px;
    }

    .index-courses-title span {
        font-size: 13px;
        margin-top: 12px;
    }

    .index-courses-subtitle {
        font-size: 12px;
    }

    .index-courses-filter {
        margin-bottom: 20px;
    }

    .filter-scroll-wrapper {
        gap: 8px;
    }

    .filter-tab {
        padding: 7px 14px;
        font-size: 12px;
        border-radius: 16px;
    }

    .index-courses-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
        padding: 0;
    }

    .index-courses-grid .course-card {
        border-radius: 12px;
    }

    .index-courses-grid .course-card-image {
        height: 110px;
    }

    .index-courses-grid .course-card-content {
        padding: 12px;
    }

    .index-courses-grid .course-card-title {
        font-size: 13px;
        min-height: 36px;
        margin-bottom: 6px;
    }

    .index-courses-grid .course-card-desc {
        font-size: 11px;
        margin-bottom: 8px;
    }

    .index-courses-grid .course-card-meta {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        padding-top: 8px;
        gap: 4px;
    }

    .index-courses-grid .course-card-avatar {
        width: 20px;
        height: 20px;
        font-size: 10px;
    }

    .index-courses-grid .course-card-teacher span {
        font-size: 11px;
    }

    .index-courses-grid .course-card-price {
        font-size: 14px;
    }

    .index-courses-grid .course-card-badge {
        padding: 3px 8px;
        font-size: 10px;
    }

    .index-courses-grid .course-card-duration {
        padding: 2px 6px;
        font-size: 10px;
    }

    .index-courses-more {
        margin-top: 24px;
    }

    .btn-more {
        padding: 10px 28px;
        font-size: 13px;
    }
}

@media screen and (max-width: 360px) {
    .index-courses-grid .course-card-image {
        height: 100px;
    }

    .index-courses-grid .course-card-title {
        font-size: 12px;
        min-height: 34px;
    }

    .index-courses-grid .course-card-desc {
        display: none;
    }

    .index-courses-grid .course-card-price {
        font-size: 13px;
    }
}

/* ========== 首页研发成果展示区块 ========== */
.index-achievement {
    background: linear-gradient(135deg, #f8faff 0%, #f0f5ff 100%);
    padding: 60px 0 80px;
    position: relative;
    overflow: hidden;
}

.index-achievement::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(12, 119, 255, 0.03) 0%, transparent 50%);
    animation: pulse 15s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 1; }
}

.index-achievement-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

.index-achievement-header {
    text-align: center;
    margin-bottom: 40px;
}

.index-achievement-title {
    font-size: 32px;
    font-weight: 700;
    color: #1a1a2e;
    margin-bottom: 12px;
    position: relative;
    display: inline-block;
}

.index-achievement-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #0C77FF, #5CA7FF);
    border-radius: 2px;
}

.index-achievement-title span {
    display: block;
    font-size: 16px;
    font-weight: 400;
    color: #666;
    margin-top: 16px;
}

.index-achievement-subtitle {
    font-size: 15px;
    color: #888;
    margin-top: 16px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

/* 研发成果网格 - 科技感布局 */
.index-achievement-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    max-width: 1400px;
    margin: 0 auto 40px;
}

/* 首页研发成果卡片 - 科技风格 */
.index-achievement-grid .index-achievement-card {
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(12, 119, 255, 0.08);
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    cursor: pointer;
    border: 1px solid rgba(12, 119, 255, 0.1);
    position: relative;
    display: flex;
    flex-direction: column;
}

.index-achievement-grid .index-achievement-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #0C77FF, #5CA7FF);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.index-achievement-grid .index-achievement-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(12, 119, 255, 0.2);
    border-color: rgba(12, 119, 255, 0.3);
}

.index-achievement-grid .index-achievement-card:hover::before {
    opacity: 1;
}

.index-achievement-grid .index-achievement-card-image {
    position: relative;
    height: 140px;
    overflow: hidden;
    background: linear-gradient(135deg, #f0f5ff 0%, #e8f0ff 100%);
}

.index-achievement-grid .index-achievement-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.index-achievement-grid .index-achievement-card:hover .index-achievement-card-image img {
    transform: scale(1.1);
}

/* 成果类型标签 */
.index-achievement-grid .index-achievement-card-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(135deg, rgba(12, 119, 255, 0.9), rgba(92, 167, 255, 0.9));
    border-radius: 20px;
    backdrop-filter: blur(4px);
    box-shadow: 0 2px 10px rgba(12, 119, 255, 0.3);
}

.index-achievement-grid .index-achievement-card-badge svg {
    width: 14px;
    height: 14px;
}

/* 不同类型使用不同颜色 */
.index-achievement-grid .index-achievement-card[data-category="patent"] .index-achievement-card-badge {
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.9), rgba(255, 143, 102, 0.9));
    box-shadow: 0 2px 10px rgba(255, 107, 53, 0.3);
}

.index-achievement-grid .index-achievement-card[data-category="breakthrough"] .index-achievement-card-badge {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.9), rgba(52, 211, 153, 0.9));
    box-shadow: 0 2px 10px rgba(16, 185, 129, 0.3);
}

.index-achievement-grid .index-achievement-card[data-category="project"] .index-achievement-card-badge {
    background: linear-gradient(135deg, rgba(12, 119, 255, 0.9), rgba(92, 167, 255, 0.9));
    box-shadow: 0 2px 10px rgba(12, 119, 255, 0.3);
}

.index-achievement-grid .index-achievement-card[data-category="paper"] .index-achievement-card-badge {
    background: linear-gradient(135deg, rgba(114, 46, 209, 0.9), rgba(167, 139, 250, 0.9));
    box-shadow: 0 2px 10px rgba(114, 46, 209, 0.3);
}

.index-achievement-grid .index-achievement-card-content {
    padding: 18px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.index-achievement-grid .index-achievement-card-title {
    font-size: 15px;
    font-weight: 600;
    color: #333;
    margin-bottom: 10px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 42px;
    transition: color 0.3s ease;
}

.index-achievement-grid .index-achievement-card:hover .index-achievement-card-title {
    color: #0C77FF;
}

.index-achievement-grid .index-achievement-card-desc {
    font-size: 13px;
    color: #666;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
    margin-bottom: 12px;
}

.index-achievement-grid .index-achievement-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 12px;
    border-top: 1px solid #f0f0f0;
    margin-top: auto;
}

.index-achievement-grid .index-achievement-card-date {
    font-size: 12px;
    color: #999;
    display: flex;
    align-items: center;
    gap: 4px;
}

.index-achievement-grid .index-achievement-card-date::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 4px;
    background: #0C77FF;
    border-radius: 50%;
}

.index-achievement-grid .index-achievement-card-views {
    font-size: 12px;
    color: #999;
    display: flex;
    align-items: center;
    gap: 4px;
}

/* 查看更多按钮 */
.index-achievement-more {
    text-align: center;
    margin-top: 40px;
}

.btn-achievement {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 15px;
    font-weight: 500;
    color: #fff;
    background: linear-gradient(135deg, #0C77FF 0%, #5CA7FF 100%);
    border-radius: 30px;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(12, 119, 255, 0.3);
}

.btn-achievement:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(12, 119, 255, 0.4);
}

.btn-achievement svg {
    width: 18px;
    height: 18px;
    transition: transform 0.3s ease;
}

.btn-achievement:hover svg {
    transform: translateX(4px);
}

/* ========== 首页研发成果 - 移动端适配 ========== */
@media screen and (max-width: 1200px) {
    .index-achievement-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
    }
}

@media screen and (max-width: 992px) {
    .index-achievement {
        padding: 50px 0 60px;
    }

    .index-achievement-container {
        padding: 0;
    }

    .index-achievement-title {
        font-size: 28px;
    }

    .index-achievement-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px;
    }

    .index-achievement-grid .index-achievement-card-image {
        height: 120px;
    }
}

@media screen and (max-width: 768px) {
    .index-achievement {
        padding: 40px 0 50px;
    }

    .index-achievement-header {
        margin-bottom: 24px;
    }

    .index-achievement-title {
        font-size: 24px;
    }

    .index-achievement-title span {
        font-size: 14px;
        margin-top: 12px;
    }

    .index-achievement-subtitle {
        font-size: 13px;
        margin-top: 12px;
        padding: 0 10px;
    }

    .index-achievement-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
        padding: 0 12px;
        margin-bottom: 30px;
    }

    .index-achievement-grid .index-achievement-card-image {
        height: 100px;
    }

    .index-achievement-grid .index-achievement-card-content {
        padding: 14px;
    }

    .index-achievement-grid .index-achievement-card-title {
        font-size: 13px;
        min-height: 36px;
        margin-bottom: 8px;
    }

    .index-achievement-grid .index-achievement-card-desc {
        font-size: 11px;
        -webkit-line-clamp: 2;
    }

    .index-achievement-grid .index-achievement-card-badge {
        padding: 4px 10px;
        font-size: 10px;
        top: 8px;
        left: 8px;
    }

    .index-achievement-grid .index-achievement-card-badge svg {
        width: 12px;
        height: 12px;
    }

    .index-achievement-grid .index-achievement-card-footer {
        padding-top: 10px;
    }

    .index-achievement-grid .index-achievement-card-date,
    .index-achievement-grid .index-achievement-card-views {
        font-size: 10px;
    }

    .index-achievement-more {
        margin-top: 30px;
    }

    .btn-achievement {
        padding: 12px 28px;
        font-size: 14px;
    }
}

@media screen and (max-width: 480px) {
    .index-achievement {
        padding: 30px 0 40px;
    }

    .index-achievement-header {
        margin-bottom: 20px;
    }

    .index-achievement-title {
        font-size: 20px;
    }

    .index-achievement-title span {
        font-size: 13px;
        margin-top: 10px;
    }

    .index-achievement-subtitle {
        font-size: 12px;
        margin-top: 10px;
    }

    .index-achievement-grid {
        gap: 10px;
        padding: 0 10px;
        margin-bottom: 24px;
    }

    .index-achievement-grid .index-achievement-card {
        border-radius: 12px;
    }

    .index-achievement-grid .index-achievement-card-image {
        height: 90px;
    }

    .index-achievement-grid .index-achievement-card-content {
        padding: 10px;
    }

    .index-achievement-grid .index-achievement-card-title {
        font-size: 12px;
        min-height: 34px;
        margin-bottom: 6px;
    }

    .index-achievement-grid .index-achievement-card-desc {
        font-size: 11px;
        margin-bottom: 8px;
    }

    .index-achievement-grid .index-achievement-card-badge {
        padding: 3px 8px;
        font-size: 9px;
        top: 6px;
        left: 6px;
        gap: 4px;
    }

    .index-achievement-grid .index-achievement-card-badge svg {
        width: 10px;
        height: 10px;
    }

    .index-achievement-grid .index-achievement-card-footer {
        padding-top: 8px;
    }

    .index-achievement-grid .index-achievement-card-date,
    .index-achievement-grid .index-achievement-card-views {
        font-size: 9px;
    }

    .index-achievement-more {
        margin-top: 24px;
    }

    .btn-achievement {
        padding: 10px 24px;
        font-size: 13px;
    }
}

@media screen and (max-width: 360px) {
    .index-achievement-grid .index-achievement-card-image {
        height: 80px;
    }

    .index-achievement-grid .index-achievement-card-title {
        font-size: 11px;
        min-height: 30px;
    }

    .index-achievement-grid .index-achievement-card-desc {
        display: none;
    }

    .index-achievement-grid .index-achievement-card-badge {
        padding: 2px 6px;
        font-size: 8px;
    }
}

/* ========== 首页活动荣耀区块 ========== */
.index-honor {
    background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%);
    padding: 60px 0 80px;
}

.index-honor-header {
    text-align: center;
    margin-bottom: 40px;
}

.index-honor-title {
    font-size: 32px;
    font-weight: 700;
    color: #1a1a2e;
    margin-bottom: 12px;
    position: relative;
    display: inline-block;
}

.index-honor-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #FF6B35, #FF8F66);
    border-radius: 2px;
}

.index-honor-title span {
    display: block;
    font-size: 16px;
    font-weight: 400;
    color: #666;
    margin-top: 16px;
}

.index-honor-subtitle {
    font-size: 15px;
    color: #888;
    margin-top: 20px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* 活动荣耀网格 */
.index-honor-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    max-width: 1400px;
    margin: 0 auto;
}

/* 首页活动荣耀卡片 */
.index-honor-grid .index-honor-card {
    background: #fff;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
    cursor: pointer;
    border: 1px solid #e8e8e8;
    display: flex;
    flex-direction: column;
}

.index-honor-grid .index-honor-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(255, 107, 53, 0.15);
    border-color: #FF8F66;
}

.index-honor-grid .index-honor-card-image {
    position: relative;
    height: 160px;
    overflow: hidden;
    background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
}

.index-honor-grid .index-honor-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.index-honor-grid .index-honor-card:hover .index-honor-card-image img {
    transform: scale(1.08);
}

.index-honor-grid .index-honor-card-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 6px 14px;
    font-size: 12px;
    font-weight: 600;
    color: #fff;
    border-radius: 20px;
    background: linear-gradient(135deg, #FF6B35 0%, #FF8F66 100%);
    box-shadow: 0 2px 10px rgba(255, 107, 53, 0.4);
}

.index-honor-grid .index-honor-card-content {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.index-honor-grid .index-honor-card-title {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    margin-bottom: 12px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 44px;
}

.index-honor-grid .index-honor-card-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-top: 12px;
    border-top: 1px solid #eee;
    margin-top: auto;
}

.index-honor-grid .index-honor-card-date {
    font-size: 13px;
    color: #999;
    display: flex;
    align-items: center;
    gap: 4px;
}

/* 查看更多按钮 */
.index-honor-more {
    text-align: center;
    margin-top: 40px;
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 15px;
    font-weight: 500;
    color: #FF6B35;
    background: transparent;
    border: 2px solid #FF6B35;
    border-radius: 30px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-outline:hover {
    background: #FF6B35;
    color: #fff;
}

.btn-outline svg {
    width: 18px;
    height: 18px;
    transition: transform 0.3s ease;
}

.btn-outline:hover svg {
    transform: translateX(4px);
}

/* ========== 首页活动荣耀 - 移动端适配 ========== */
@media screen and (max-width: 1200px) {
    .index-honor-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
}

@media screen and (max-width: 992px) {
    .index-honor {
        padding: 50px 0 60px;
    }
    .index-honor-container {
        padding: 0;
    }
    .index-honor-title {
        font-size: 28px;
    }

    .index-honor-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .index-honor-grid .index-honor-card-image {
        height: 140px;
    }
}

@media screen and (max-width: 768px) {
    .index-honor {
        padding: 40px 0 50px;
    }

    .index-honor-header {
        margin-bottom: 24px;
    }

    .index-honor-title {
        font-size: 24px;
    }

    .index-honor-title span {
        font-size: 14px;
    }

    .index-honor-subtitle {
        font-size: 13px;
        margin-top: 12px;
    }

    .index-honor-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
        padding: 0 12px;
    }

    .index-honor-grid .index-honor-card-image {
        height: 120px;
    }

    .index-honor-grid .index-honor-card-content {
        padding: 14px;
    }

    .index-honor-grid .index-honor-card-title {
        font-size: 14px;
        min-height: 40px;
        margin-bottom: 10px;
    }

    .index-honor-grid .index-honor-card-badge {
        padding: 4px 10px;
        font-size: 11px;
        top: 8px;
        left: 8px;
    }

    .index-honor-more {
        margin-top: 30px;
    }

    .btn-outline {
        padding: 12px 28px;
        font-size: 14px;
    }
}

/* ========== 首页学员成功案例区块 ========== */
.index-students {
    background: linear-gradient(135deg, #fff8f5 0%, #fff 100%);
    padding: 50px 0 60px;
    position: relative;
}

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

.index-students-title {
    font-size: 32px;
    font-weight: 700;
    color: #333;
    margin-bottom: 12px;
    position: relative;
    display: inline-block;
}

.index-students-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #FF6B35, #FF8F66);
    border-radius: 2px;
}

.index-students-title span {
    display: block;
    font-size: 16px;
    font-weight: 400;
    color: #666;
    margin-top: 16px;
}

.index-students-subtitle {
    font-size: 15px;
    color: #888;
    margin-top: 16px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 10px;
}


/* 学员网格 */
.index-students-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    padding: 0 20px;
    max-width: 1400px;
    margin: 0 auto 40px;
}

/* 首页学员卡片 - 与students.html风格一致 */
.index-students-grid .index-student-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    border: 1px solid #e8e8e8;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
}

.index-students-grid .index-student-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    border-color: #FF6B35;
}

.index-students-grid .index-student-photo {
    position: relative;
    padding-top: 56.25%;
    overflow: hidden;
    background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
}

.index-students-grid .index-student-photo img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.index-students-grid .index-student-card:hover .index-student-photo img {
    transform: scale(1.05);
}

.index-students-grid .index-student-badge {
    position: absolute;
    top: 8px;
    left: 8px;
    padding: 2px 8px;
    font-size: 10px;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(135deg, #FF6B35 0%, #FF8F66 100%);
    border-radius: 10px;
    box-shadow: 0 2px 6px rgba(255, 107, 53, 0.3);
}

.index-students-grid .index-student-info {
    padding: 14px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.index-students-grid .index-student-base {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 6px;
    line-height: 1.4;
    margin-bottom: 8px;
}

.index-students-grid .index-student-name {
    font-size: 14px;
    font-weight: 600;
    color: #333;
}

.index-students-grid .index-student-course-tag {
    font-size: 11px;
    color: #FF6B35;
    background: rgba(255, 107, 53, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
}

.index-students-grid .index-student-salary-tag {
    font-size: 11px;
    color: #10B981;
    background: rgba(16, 185, 129, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
}

.index-students-grid .index-student-company-tag {
    font-size: 11px;
    color: #666;
    background: rgba(102, 102, 102, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
}

.index-students-grid .index-student-divider {
    height: 1px;
    background: linear-gradient(to right, transparent, #e8e8e8, transparent);
    margin: 8px 0;
}

.index-students-grid .index-student-experience {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.index-students-grid .index-student-experience-text {
    font-size: 12px;
    color: #666;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.index-students-grid .index-student-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: 8px;
}

.index-students-grid .index-student-tag {
    padding: 2px 8px;
    font-size: 10px;
    color: #999;
    background: #f5f5f5;
    border-radius: 8px;
}

/* 主色调按钮 */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 15px;
    font-weight: 500;
    color: #fff;
    background: linear-gradient(135deg, #FF6B35 0%, #FF8F66 100%);
    border: none;
    border-radius: 30px;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(255, 107, 53, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(255, 107, 53, 0.4);
}

.btn-primary svg {
    width: 18px;
    height: 18px;
    transition: transform 0.3s ease;
}

.btn-primary:hover svg {
    transform: translateX(4px);
}

/* 查看更多 */
.index-students-more {
    text-align: center;
    margin-top: 30px;
}

/* ========== 首页学员成功案例 - 移动端适配 ========== */
@media screen and (max-width: 1200px) {
    .index-students-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
    }

}

@media screen and (max-width: 992px) {
    .index-students {
        padding: 40px 0 50px;
    }

    .index-students-container {
        padding: 0;
    }
    .index-students-title {
        font-size: 28px;
    }

    .index-students-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px;
    }

}

@media screen and (max-width: 768px) {
    .index-students {
        padding: 30px 0 40px;
    }

    .index-students-header {
        margin-bottom: 24px;
    }

    .index-students-title {
        font-size: 24px;
    }

    .index-students-title span {
        font-size: 14px;
        margin-top: 12px;
    }

    .index-students-subtitle {
        font-size: 13px;
        margin-top: 12px;
    }

    .index-students-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
        padding: 0 12px;
        margin-bottom: 30px;
    }

    .index-students-grid .index-student-info {
        padding: 10px;
    }

    .index-students-grid .index-student-name {
        font-size: 13px;
    }

    .index-students-grid .index-student-base {
        gap: 4px;
        margin-bottom: 6px;
    }

    .index-students-grid .index-student-course-tag,
    .index-students-grid .index-student-salary-tag,
    .index-students-grid .index-student-company-tag {
        font-size: 10px;
        padding: 1px 4px;
    }

    .index-students-grid .index-student-divider {
        margin: 6px 0;
    }

    .index-students-grid .index-student-experience-text {
        font-size: 11px;
        -webkit-line-clamp: 2;
    }

    .index-students-grid .index-student-tags {
        display: none;
    }

    .index-students-more {
        margin-top: 24px;
    }

    .btn-primary {
        padding: 12px 28px;
        font-size: 14px;
    }

}

@media screen and (max-width: 480px) {
    .index-students {
        padding: 24px 0 32px;
    }

    .index-students-header {
        margin-bottom: 20px;
    }

    .index-students-title {
        font-size: 20px;
    }

    .index-students-title span {
        font-size: 13px;
        margin-top: 10px;
    }

    .index-students-subtitle {
        font-size: 12px;
        margin-top: 10px;
    }



    .index-students-grid {
        gap: 10px;
        padding: 0 10px;
        margin-bottom: 24px;
    }

    .index-students-grid .index-student-card {
        border-radius: 10px;
    }

    .index-students-grid .index-student-badge {
        font-size: 9px;
        padding: 2px 6px;
        top: 6px;
        left: 6px;
    }

    .index-students-grid .index-student-info {
        padding: 8px;
    }

    .index-students-grid .index-student-name {
        font-size: 12px;
    }

    .index-students-grid .index-student-base {
        gap: 3px;
        margin-bottom: 4px;
    }

    .index-students-grid .index-student-course-tag,
    .index-students-grid .index-student-salary-tag,
    .index-students-grid .index-student-company-tag {
        font-size: 9px;
        padding: 1px 3px;
    }

    .index-students-grid .index-student-divider {
        margin: 4px 0;
    }

    .index-students-grid .index-student-experience-text {
        font-size: 10px;
    }

    .index-students-more {
        margin-top: 20px;
    }

    .btn-primary {
        padding: 10px 24px;
        font-size: 13px;
    }

}

@media screen and (max-width: 480px) {
    .index-honor {
        padding: 30px 0 40px;
    }

    .index-honor-header {
        margin-bottom: 20px;
    }

    .index-honor-title {
        font-size: 20px;
    }

    .index-honor-title span {
        font-size: 13px;
        margin-top: 12px;
    }

    .index-honor-subtitle {
        font-size: 12px;
        padding: 0 16px;
    }

    .index-honor-grid {
        grid-template-columns: 1fr;
        gap: 12px;
        padding: 0 12px;
    }

    .index-honor-grid .index-honor-card {
        flex-direction: row;
    }

    .index-honor-grid .index-honor-card-image {
        width: 120px;
        height: auto;
        min-height: 100px;
        flex-shrink: 0;
    }

    .index-honor-grid .index-honor-card-content {
        padding: 12px;
        flex: 1;
    }

    .index-honor-grid .index-honor-card-title {
        font-size: 13px;
        min-height: auto;
        margin-bottom: 8px;
        -webkit-line-clamp: 2;
    }

    .index-honor-grid .index-honor-card-meta {
        padding-top: 8px;
    }

    .index-honor-grid .index-honor-card-date {
        font-size: 11px;
    }

    .index-honor-more {
        margin-top: 24px;
    }

    .btn-outline {
        padding: 10px 24px;
        font-size: 13px;
    }
}

@media screen and (max-width: 360px) {
    .index-honor-grid .index-honor-card-image {
        width: 100px;
    }

    .index-honor-grid .index-honor-card-badge {
        padding: 3px 8px;
        font-size: 10px;
    }
}