.video-banner canvas, .video-banner video {
    width: 100%;
    height: 100%;
    -o-object-fit: cover;
    object-fit: cover;
    background-color: transparent;
}

.video-banner{
    height: 100vh;
    position: relative;
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
}

.video-banner video {
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
}

/* 静音播放提示 */
.muted-play-hint {
    position: absolute;
    bottom: 20px;
    right: 20px;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 8px 12px;
    border-radius: 20px;
    font-size: 12px;
    z-index: 10;
    opacity: 0;
    transition: opacity 0.3s ease;
    backdrop-filter: blur(10px);
}

.muted-play-hint.show {
    opacity: 1;
}

.muted-play-hint .unmute-btn {
    background: #BF2A32;
    color: white;
    border: none;
    padding: 4px 8px;
    border-radius: 4px;
    cursor: pointer;
    margin-left: 8px;
    font-size: 11px;
    transition: background 0.3s ease;
}

.muted-play-hint .unmute-btn:hover {
    background: #a0222a;
}


/* 留学前标题样式 */
.section-header {
    display: flex;
    text-align: center;
    /* margin-bottom: 60px; */
    position: relative;
    padding-top: 40px;
    justify-content: space-between;
}

.section-title {
    font-family: MiSans;
    font-size: 144px;
    font-weight: 900;
    line-height: normal;
    text-align: right;
    letter-spacing: 0em;
    font-variation-settings: "opsz" auto;
    font-feature-settings: "kern" on;
    color: #F3F3F3;
    
    text-shadow: 1px 1px 1px rgba(0, 0, 0, 0.05);
}

.section-title-en {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    font-family: MiSans;
    font-size: 92px;
    font-weight: 900;
    line-height: normal;
    text-align: right;
    text-transform: uppercase;
    letter-spacing: 0em;
    font-variation-settings: "opsz" auto;
    font-feature-settings: "kern" on;
    color: #F3F3F3;
    position: relative;
}

.section-title-en::after {
    content: '';
    position: absolute;
    bottom: calc(50% - 60px);
    transform: translateY(calc(50%));
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% + 40px);
    height: 40px;
    background: rgba(237, 46, 65, 0.02);
}

.professional-preparation-course {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    font-family: MiSans;
    margin: 0px auto 0;
    flex-wrap: wrap;
    gap: 30px;
}

.professional-preparation-course-item{
    margin-right: 30px;
    margin-bottom: 30px;
    border-radius: 12px;
    padding:  58px 30px;
    font-weight: bold;
    line-height: normal;
    letter-spacing: 0em;
    font-variation-settings: "opsz" auto;
    font-feature-settings: "kern" on;
    position: relative;
    /* width: calc(50% - 15px);
    flex: 0 0 calc(50% - 15px); */
    margin-right: 0;
    height: 340px;
    border-radius: 10px;
    box-sizing: border-box;
    position: relative;
    transition: all 0.3s ease;
    cursor: pointer;
    background-size: 100% 100% !important;
    display: block;
    text-decoration: none;
    color: inherit;
}

/* 为不同的卡片设置不同的背景图片 */
.professional-preparation-course-item:nth-child(1) {
    background-image: url('../img/newIndex/professional-img1.jpg');
    background-repeat: no-repeat;
    background-position: center center;
    
    background-size: 100% 100%;
}

.professional-preparation-course-item:nth-child(2) {
    background-image: url('../img/newIndex/professional-img2.jpg');
    background-repeat: no-repeat;
    background-position: center center;
    background-size: cover
}

.professional-preparation-course-item:nth-child(3) {
    background-image: url('../img/newIndex/professional-img3.jpg');
    background-repeat: no-repeat;
    background-position: center center;
    
    background-size: 100% 100%;
   
}

.professional-preparation-course-item:nth-child(4) {
    background-image: url('../img/newIndex/professional-img4.jpg');
    background-repeat: no-repeat;
    background-position: center center;
    
    background-size: 100% 100%;
}

.professional-preparation-course-item:hover {
    box-shadow: 5px 5px 8px 0px rgba(0, 0, 0, 0.1);
    /* transform: translateY(-2px); */
}

/* 添加蒙层效果 */
.professional-preparation-course-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9); /* 浅灰色蒙层，类似 #F3F3F3 */
    border-radius: 10px;
    z-index: 1;
}

.professional-preparation-course-item-title{
    margin-bottom: 22px;
    font-size:52px;
    color: #ED2E41;
    font-weight: 900;
    position: relative;
    z-index: 2;
}

.professional-preparation-course-item-desc{
    font-family: MiSans;
    font-size: 36px;
    font-weight: normal;
    line-height: 60px;
    letter-spacing: 0em;

    font-variation-settings: "opsz" auto;
    font-feature-settings: "kern" on;
    color: #3D3D3D;
    position: relative;
    z-index: 2;
}
.professional-preparation-course-item-img-box{
    position: absolute;
    right: 30px;
    top: 30px;
    width: 100px;
    height: 100px;
    z-index: 10;
}

.professional-preparation-course-item-img{
    width: 100%;
}

/* SVG彩色图标 */
.color-cycle-icon {
    width: 100%;
    height: 100%;
    color: #3ED6EE;
}

/* 为每个图标设置不同的固定颜色 */
.professional-preparation-course-item:nth-child(1) .color-cycle-icon {
    color: #3ED6EE;
}

.professional-preparation-course-item:nth-child(2) .color-cycle-icon {
    color: #ED2E41;
}

.professional-preparation-course-item:nth-child(3) .color-cycle-icon {
    color: #FFC844;
}

.professional-preparation-course-item:nth-child(4) .color-cycle-icon {
    color: #755EFF;
}

.new-service-item:nth-child(1) .color-cycle-icon {
    color: #3ED6EE;
}

.new-service-item:nth-child(2) .color-cycle-icon {
    color: #ED2E41;
}

.new-service-item:nth-child(3) .color-cycle-icon {
    color: #FFC844;
}

.new-service-item:nth-child(4) .color-cycle-icon {
    color: #755EFF;
}

.new-service-item:nth-child(5) .color-cycle-icon {
    color: #3E7AFF;
}

.new-service-item:nth-child(6) .color-cycle-icon {
    color: #FD275F;
}

.new-service-item:hover {
    box-shadow: 5px 5px 8px 0px rgba(0, 0, 0, 0.1);
    /* transform: translateY(-2px); */
}
/* 新增的3个一排模块样式 */
.new-service-section {
    width: 100%;
    display: flex;
    align-items: center;
    font-family: MiSans;
    margin: 0px auto 0;
    flex-wrap: wrap;
    gap: 30px;
}

.new-service-section .new-service-item {
    margin-right: 30px;
    margin-bottom: 30px;
    background-size: 100% 100%;
    border-radius: 12px;
    padding: 80px 30px;
    font-weight: bold;
    line-height: normal;
    letter-spacing: 0em;
    font-variation-settings: "opsz" auto;
    font-feature-settings: "kern" on;
    position: relative;
    width: calc(33.333% - 20px);
    flex: 0 0 calc(33.333% - 20px);
    margin-right: 0;
    height: 350px;
    border-radius: 10px;
    box-sizing: border-box;
    position: relative;
    transition: all 0.3s ease;
    cursor: pointer;
    background-size: 100% 100% !important;
    display: block;
    text-decoration: none;
    color: inherit;
}
.new-service-section .new-service-item:nth-child(1) {
    background: url('../img/newIndex/professional-img5.jpg') no-repeat center center;
}
.new-service-section .new-service-item:nth-child(2) {
    background: url('../img/newIndex/professional-img6.jpg') no-repeat center center;
}
.new-service-section .new-service-item:nth-child(3) {
    background: url('../img/newIndex/professional-img7.jpg') no-repeat center center;
}
.new-service-section .new-service-item:nth-child(4) {
    background: url('../img/newIndex/professional-img8.jpg') no-repeat center center;
}
.new-service-section .new-service-item:nth-child(5) {
    background: url('../img/newIndex/professional-img9.jpg') no-repeat center center;
}
.new-service-item:nth-child(6) {
    background: url('../img/newIndex/professional-img10.jpg') no-repeat center center;
}

 

/* 新增模块的蒙层效果 */
.new-service-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 10px;
    z-index: 1;
}

.new-service-item-title {
    margin-bottom: 22px;
    font-size: 52px;
    color: #ED2E41;
    font-weight: 900;
    position: relative;
    z-index: 2;
}

.new-service-item-desc {
    font-family: MiSans;
    font-size: 36px;
    font-weight: normal;
    line-height: 60px;
    letter-spacing: 0em;
    font-variation-settings: "opsz" auto;
    font-feature-settings: "kern" on;
    color: #3D3D3D;
    position: relative;
    z-index: 2;
}

.new-service-item-img-box {
    width: 68px;
    height: 68px;
    position: absolute;
    right: 30px;
    top: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
}
 

/* 为新增模块的不同卡片设置不同的背景图片 */
.new-service-item:nth-child(1) {
    background: url('../img/newIndex/professional-img1.jpeg') no-repeat center center;
    background-size: 100% 100%;
}

.new-service-item:nth-child(2) {
    background: url('../img/newIndex/professional-img2.jpg') no-repeat center center;
    background-size: 100% 100%;
}

.new-service-item:nth-child(3) {
    background: url('../img/newIndex/professional-img3.jpg') no-repeat center center;
    background-size: 100% 100%;
}

/* 学术申诉标题样式 */
.academic-appeal-section {
    text-align: center;
    position: relative;
    margin: 22px 0 72px;
}

.academic-appeal-bg {
    font-family: MiSans;
    font-size: 92px;
    font-weight: 900;
    line-height: normal;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 0em;
    font-variation-settings: "opsz" auto;
    font-feature-settings: "kern" on;
    color: #F3F3F3;
}

.academic-appeal-title {
    font-family: MiSans;
    font-size: 64px;
    font-weight: 900;
    line-height: normal;
    letter-spacing: 0em;
    font-variation-settings: "opsz" auto;
    font-feature-settings: "kern" on;
    color: #4F4D4D;
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
}
 
/* 新增模块的蒙层效果 */
.academic-appeal-title::after {
    content: '';
    position: absolute;
    bottom: calc(50% - 60px);
    transform: translateY(calc(50%));
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% + 40px);
    height: 40px;
    background: rgba(62, 122, 255, 0.03);
}

/* 学术申诉服务图标样式 */
.academic-services-container {
    margin: 40px 0;
    width: 100%;
    padding: 63px 0;
    background: linear-gradient(270deg, rgba(59, 130, 246, 0.05) 0%, rgba(59, 130, 246, 0) 100%);
    position: relative;
    overflow: hidden;
}

.academic-services-container .academic-services-scroll {
    width: 100%;
    height: auto;
    padding: 0 60px;
    overflow: hidden;
    position: relative;
}

.services-track {
    display: flex;
    align-items: center;
    will-change: transform;
    /* 移除transition，让transform即时更新，实现无缝循环 */
}

.academic-services-container .service-item {
    flex-shrink: 0;
    width: 140px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-right: 116px;
}

.academic-services-container .service-icon-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: 240px;
    margin: 0 116px;
    position: relative;
    z-index: 2;
}

.academic-services-container .service-icon-label {
    margin-top: 20px;
    font-family: MiSans;
    white-space: nowrap;
    text-align: center;
    font-size:24px;
    font-weight: 800;
    line-height: normal;
    text-align: center;
    letter-spacing: 0em;

    font-variation-settings: "opsz" auto;
    font-feature-settings: "kern" on;
    color: #3D3D3D;

}

/* 图片图标样式 */
.academic-services-container .service-icon-image {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.academic-services-container .service-icon-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 8px;
    transition: transform 0.3s ease;
}
 

/* 学术申诉服务SVG图标颜色设置 */
.academic-services-container .service-icon-svg {
    width: 100%;
    height: 100%;
    color: #3B82F6;
}

/* Swiper导航按钮样式 */
.academic-swiper-next,
.academic-swiper-prev {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid #ddd;
    border-radius: 50%;
    color: #333;
    z-index: 10;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    margin-top: -20px;
}

.academic-swiper-next:hover,
.academic-swiper-prev:hover {
    background: #4A90E2;
    color: white;
    border-color: #4A90E2;
}

.academic-swiper-next:after,
.academic-swiper-prev:after {
    font-size: 16px;
    font-weight: bold;
}

.academic-swiper-next {
    right: 20px;
}

.academic-swiper-prev {
    left: 20px;
}


/* 产品展示区域样式 */
.products-section {
    margin: 80px 0;
    background: #fff;
}

/* 产品标签页样式 */
.product-tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 60px;
    
}

.product-tab {
    margin-right: 80px;;
    padding: 46px 105px;
    border-radius: 16px;
    opacity: 1;
    border-radius: 16px;
    opacity: 1;
    box-sizing: border-box;
    border: 2px solid #4F4D4D;
    font-family: MiSans;
    font-size: 56px;
    font-weight: 500;
    line-height: 60.8px;
    text-align: center;
    letter-spacing: 0px;
    font-variation-settings: "opsz" auto;
    font-feature-settings: "kern" on;
    color: #4F4D4D;
    cursor: pointer;
    transition: all 0.3s ease;
}

.product-tab:hover,
.product-tab.active {
    color:#FFF;
    border: 2px solid #ED2E41;
    background: #ED2E41;
    position: relative;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(237, 46, 65, 0.3);
    transition: all 0.3s ease;
}

.product-tab:hover::after,
.product-tab.active::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 12px solid transparent;
    border-right: 12px solid transparent;
    border-top: 12px solid #ED2E41;
}


/* 产品内容区域 */
.product-content {
    position: relative;
    min-height: 500px;
}

/* 产品内容默认全部隐藏 */
.product-tab-content {
    display: none;
}

/* active状态控制显示 */
.product-tab-content.active {
    display: block !important;
}

/* 使用:has()选择器实现hover切换 - hover时隐藏所有内容，只显示对应的 */
/* 当有任何tab被hover时，先隐藏所有内容（包括默认显示的） */
.products-section:has(.product-tab:hover) .product-tab-content,
.products-section:has(.product-tab:hover) #star-content,
.products-section:has(.product-tab:hover) #advanced-content,
.products-section:has(.product-tab:hover) #welfare-content {
    display: none !important;
}

/* 当hover在明星产品tab上时 */
.products-section:has(.product-tab[data-tab="star"]:hover) #star-content {
    display: block !important;
}

/* 当hover在高阶产品tab上时 */
.products-section:has(.product-tab[data-tab="advanced"]:hover) #advanced-content {
    display: block !important;
}

/* 当hover在福利产品tab上时 */
.products-section:has(.product-tab[data-tab="welfare"]:hover) #welfare-content {
    display: block !important;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 产品展示区域 */
.product-showcase {
    display: flex;
    align-items: center;
    background: #fff;
    padding: 40px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    gap: 40px;
}

/* 设备展示区域 */
.product-devices {
    display: flex;
    align-items: center;
    flex: 1;
}

/* 产品图片容器 */
.product-image-container {
    flex:0 0  1100px;
    height: 599px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 15px;
    position: relative;
}

.product-showcase-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 15px;
    transition: transform 0.3s ease;
}

.product-showcase-image:hover {
    transform: scale(1.05);
}


/* 课程规划按钮样式 */
.course-planning-button {
    position: absolute;
    bottom: 160px;
    left: 160px;
    background: rgba(237, 46, 65, 0.4);
    color: white;
    padding: 12px 20px;
    border-radius: 25px;
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: MiSans;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(255, 107, 157, 0.3);
    transition: all 0.3s ease;
    z-index: 10;
}

.course-planning-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 157, 0.4);
}

.button-icon {
    width: 30px;
    height: 30px;
    /* background-color: #fff; */
    /* padding: 10px; */
    box-sizing: border-box;
    border-radius: 50%;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.button-icon img{
    width: 100%;
    height: 100%;
    object-fit: contain;
}
.button-text {
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
}

/* 通知徽章 */
.notification-badge {
    position: absolute;
    top: -8px;
    right: -8px;
    background: #FF6B35;
    color: white;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: bold;
    border: 2px solid white;
    box-shadow: 0 2px 6px rgba(255, 107, 53, 0.3);
}

/* 艺术指导按钮样式 */
.course-planning-button.art-button {
    background: linear-gradient(135deg, #9B59B6, #8E44AD);
    box-shadow: 0 4px 15px rgba(155, 89, 182, 0.3);
}

.course-planning-button.art-button:hover {
    box-shadow: 0 6px 20px rgba(155, 89, 182, 0.4);
}

.course-planning-button.art-button .notification-badge {
    background: #E74C3C;
    box-shadow: 0 2px 6px rgba(231, 76, 60, 0.3);
}

/* 小班课按钮样式 */
.course-planning-button.welfare-button {
    background: linear-gradient(135deg, #3498DB, #2980B9);
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
}

.course-planning-button.welfare-button:hover {
    box-shadow: 0 6px 20px rgba(52, 152, 219, 0.4);
}

.course-planning-button.welfare-button .notification-badge {
    background: #F39C12;
    box-shadow: 0 2px 6px rgba(243, 156, 18, 0.3);
}

/* ================================
   响应式设计 - 通过调整html字体大小实现等比例缩放
   所有元素自动等比例缩小
   ================================ */

/* 默认基准：1920px屏幕 = 100% */
body {
    zoom: 1;
}

/* 中大屏笔记本适配 (1441px-1600px) */
@media (max-width: 1600px) and (min-width: 1441px) {
    body{
        zoom: 0.80;
    }
     
    /* 通用间距调整 */
    .common-pd {
        padding: 0 100px;
    }
  }
  @media (max-width: 1440px) {
    body{
        zoom: 0.75;
    }
    
    /* 通用间距调整 */
    .common-pd {
        padding: 0 100px;
    }
  }