body {
    background: RGBA(247, 249, 250, 1);
}

.drone-intro-section {
    padding-top: 80px;
}

.drone-intro-section .drone-intro-main-title {
    color: #222222;
    font-weight: bold;
    text-align: center;
}

.drone-intro-section .drone-intro-content-box {
    margin-top: 40px;
    font-weight: 400;
    font-size: 16px;
    color: #666666;
    line-height: 30px;
    text-align: center;
}

.drone-prospect-section {
    padding-top: 110px;
    overflow: hidden;
}

.drone-prospect-section .drone-prospect-main-title {
    color: rgba(34, 34, 34, 1);
    font-weight: bold;
    text-align: center;
}

.drone-prospect-section .drone-prospect-swiper-outer {
    margin-top: 75px;
    width: 100%;
    position: relative;
}

.drone-prospect-section .drone-prospect-swiper-container {
    width: 100%;
    overflow: visible;
    padding-bottom: 20px;
}

.drone-prospect-section .drone-prospect-slide-item {
    position: relative;
    display: block;
    cursor: pointer;
    width: 300px;
    transition: all .3s;
}

.drone-prospect-section .drone-prospect-slide-item.swiper-slide-active {
    transform: scale(1.08);
}

.drone-prospect-section .drone-prospect-image-box {
    width: 100%;
    border-radius: 10px;
}

.drone-prospect-section .drone-prospect-thumb-img {
    width: 100%;
    object-fit: cover;
    aspect-ratio: 1/1.15;
}


.drone-prospect-section .drone-prospect-slide-item:hover .drone-prospect-thumb-img {
    transform: scale(1.04);
}

.drone-prospect-section .drone-prospect-info-bar {
    position: absolute;
    bottom: 10px;
    left: 10px;
    right: 10px;
    z-index: 5;
    background: #FFFFFF;
    border-radius: 10px;
    padding: 15px 20px;
    text-align: center;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid #f1f5f9;
}

.drone-prospect-section .drone-prospect-info-title {
    font-weight: bold;
    font-size: 18px;
    color: #222222;
}

.drone-teacher-section {
    padding-top: 100px;
}

.drone-teacher-section .drone-teacher-main-title {
    color: rgba(34, 34, 34, 1);
    font-weight: bold;
    text-align: center;
}

.drone-teacher-section .drone-teacher-sub-title {
    margin-top: 15px;
    font-weight: bold;
    font-size: 18px;
    color: #1B7CFF;
    line-height: 30px;
    text-align: center;
}

.drone-teacher-section .drone-teacher-grid-wrapper {
    margin-top: 44px;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
    padding: 0 20px;
}

.drone-teacher-section .drone-teacher-card-item {
    padding: 10px 10px 0;
    position: relative;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
    border-radius: 10px;
    background: #fff;
}

.drone-teacher-section .drone-teacher-image-box {
    width: 100%;
    aspect-ratio: 1/.9411;
    border-radius: 10px;
    overflow: hidden;
}

.drone-teacher-section .drone-teacher-thumb-img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
}

.drone-teacher-section .drone-teacher-info-bar {
    padding: 19px 7px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

.drone-teacher-section .drone-teacher-info-name {
    font-weight: bold;
    font-size: 18px;
    color: #333;
    line-height: 30px;
    transition: color 0.3s ease;
    flex: 1;
    margin-right: 20px;
}

.drone-teacher-section .drone-teacher-action-circle {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background-color: RGBA(237, 237, 237, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    transition: all 0.3s ease;
    flex-shrink: 0;
    color: RGBA(187, 187, 187, 1);
}

.drone-teacher-section .drone-teacher-action-circle .iconfont {
    font-size: 12px;
    font-weight: bold;
}

.drone-teacher-section .drone-teacher-card-item:hover {
    box-shadow: 5px 9px 30px 0px rgba(158, 158, 158, 0.3);
}

.drone-teacher-section .drone-teacher-card-item:hover .drone-teacher-info-name {
    color: rgba(27, 124, 255, 1);
}

.drone-teacher-section .drone-teacher-card-item:hover .drone-teacher-action-circle {
    background-color: rgba(27, 124, 255, 1);
    border-color: rgba(27, 124, 255, 1);
    transform: rotate(45deg);
    color: #fff;
}

.drone-teacher-section .drone-teacher-more-box {
    margin-top: 60px;
    text-align: center;
}

.drone-teacher-section .drone-teacher-more-btn {
    display: inline-block;
    line-height: 48px;
    background: #F7F9FA;
    border-radius: 25px;
    border: 1px solid #E1E1E1;
    transition: all 0.25s ease;
    padding: 0 28px;
    font-weight: 400;
    font-size: 16px;
    color: #999999;
}

.drone-teacher-section .drone-teacher-more-btn:hover {
    color: #fff;
    border-color: rgba(27, 124, 255, 1);
    background-color: rgba(27, 124, 255, 1);
}

.drone-case-section {
    padding: 120px 0;
}

/* ==========================================================================
   相关课程 Swiper 轮播模块样式（严格满足隔离规范，主用 margin-top 间距）
   ========================================================================== */
.drone-related-section {
    width: 100%;
    background-color: #ffffff;
    padding-top: 80px;
    padding-bottom: 90px;
    font-family: "Helvetica Neue", Helvetica, Arial, "Microsoft Yahei", sans-serif;
}

/* 板块顶层大标题 */
.drone-related-section .drone-related-main-title {
    /* font-size: 34px; */
    color: #111111;
    font-weight: bold;
    text-align: center;
    letter-spacing: 1px;
}

/* 轮播总定位大容器 */
.drone-related-section .drone-related-carousel-outer {
    margin-top: 50px;
    /* 使用 margin-top 完美拉开与大标题之间的间距 */
    width: 100%;
    position: relative;
}

/* 限制 1400px 范围的内部包裹盒 */
.drone-related-section .drone-related-swiper-wrapper {
    position: relative;
}

/* Swiper 物理裁剪视窗 */
.drone-related-section .drone-related-swiper-container {
    width: 100%;
    overflow: hidden;
}

.drone-related-section .drone-related-slide-item {
    display: block;
    width: 17.85%;
}

.drone-related-section .drone-related-slide-item:not(:last-child) {
    margin-right: 2.68%;
}

.drone-related-section .drone-related-card-box {
    width: 100%;
    background: #F7F9FA;
    border-radius: 10px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    padding: 10px 10px 0;
}

.drone-related-section .drone-related-card-box:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.04);
}

.drone-related-section .drone-related-image-box {
    width: 100%;
    aspect-ratio: 1/.6521;
}

.drone-related-section .drone-related-thumb-img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    border-radius: 10px;
}

.drone-related-section .drone-related-info-panel {
    width: 100%;
    padding: 20px 11px;
}

.drone-related-section .drone-related-info-title {
    font-weight: bold;
    font-size: 18px;
    color: #222222;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.drone-related-section .drone-related-meta-row {
    margin-top: 15px;
    font-weight: 400;
    font-size: 16px;
    color: #666666;
    line-height: 26px;
    text-align: left;
}

.drone-faq-section {
    background-color: RGBA(247, 249, 250, 1);
}

.drone-message-section {
    padding-bottom: 120px;
}
/* ==========================================================================
   追加到 course-details.css 的响应式媒体查询（间距与布局深度适配）
   ========================================================================== */

@media (max-width: 1199px) {
    /* 1. 课程介绍 */
    .drone-intro-section {
        padding-top: 60px;
    }
    .drone-intro-section .drone-intro-content-box {
        /* margin-top: 30px; */
        /* font-size: 15px; */
        /* line-height: 28px; */
    }

    /* 2. 就业前景 */
    .drone-prospect-section {
        padding-top: 80px;
    }
    .drone-prospect-section .drone-prospect-swiper-outer {
        margin-top: 45px;
    }
    .drone-prospect-section .drone-prospect-slide-item {
        width: 260px; /* 缩减卡片宽度 */
    }

    /* 3. 金牌教员 */
    .drone-teacher-section {
        padding-top: 80px;
    }
    .drone-teacher-section .drone-teacher-grid-wrapper {
        /* margin-top: 35px; */
        grid-template-columns: repeat(4, 1fr); /* 5列缩减为4列 */
        gap: 15px;
        padding: 0 15px;
    }
    .drone-teacher-section .drone-teacher-more-box {
        margin-top: 40px;
    }

    /* 4. 培训案例 */
    .drone-case-section {
        padding: 80px 0;
    }

    /* 5. 相关课程 */
    .drone-related-section {
        padding-top: 60px;
        padding-bottom: 70px;
    }
    .drone-related-section .drone-related-carousel-outer {
        margin-top: 45px;
    }
    .drone-related-section .drone-related-slide-item {
        width: 22%; /* 宽度适当展宽，便于3至4个卡片完整排列 */
    }

    /* 6. 在线留言 */
    .drone-message-section {
        padding-bottom: 80px;
    }
}

@media (max-width: 1024px) {
    .drone-related-section .drone-related-carousel-outer {
        margin-top: 40px;
    }
    .drone-prospect-section .drone-prospect-swiper-outer {
        margin-top: 40px;
    }
    /* 1. 课程介绍 */
    .drone-intro-section {
        padding-top: 50px;
    }

    /* 2. 就业前景 */
    .drone-prospect-section {
        padding-top: 70px;
    }
    .drone-prospect-section .drone-prospect-slide-item {
        width: 230px;
    }

    /* 3. 金牌教员 */
    .drone-teacher-section {
        padding-top: 70px;
    }
    .drone-teacher-section .drone-teacher-grid-wrapper {
        grid-template-columns: repeat(3, 1fr); /* 4列缩减为3列 */
        margin-top: 40px;
    }

    /* 4. 培训案例 */
    .drone-case-section {
        padding: 70px 0;
    }

    /* 5. 相关课程 */
    .drone-related-section {
        padding-top: 50px;
        padding-bottom: 50px;
    }
    .drone-related-section .drone-related-slide-item {
        width: 28%; /* 自动调整为约3列排列 */
    }

    /* 6. 在线留言 */
    .drone-message-section {
        padding-bottom: 70px;
    }
}

@media (max-width: 768px) {
    .drone-prospect-section .drone-prospect-swiper-outer {
        margin-top: 30px;
    }
    /* 1. 课程介绍 */
    .drone-intro-section {
        padding-top: 40px;
    }
    .drone-intro-section .drone-intro-content-box {
        /* text-align: justify; */
        /* font-size: 14px; */
        /* line-height: 26px; */
        margin-top: 30px;
    }

    /* 2. 就业前景 */
    .drone-prospect-section {
        padding-top: 60px;
    }
    .drone-prospect-section .drone-prospect-swiper-outer {
        /* margin-top: 35px; */
    }
    .drone-prospect-section .drone-prospect-slide-item {
        width: 200px;
    }
    .drone-prospect-section .drone-prospect-slide-item.swiper-slide-active {
        transform: scale(1); /* 减小移动端缩放比，防止两侧卡片被裁切 */
    }
    .drone-prospect-section .drone-prospect-info-bar {
        padding: 10px 12px;
    }
    .drone-prospect-section .drone-prospect-info-title {
        font-size: 15px;
    }

    /* 3. 金牌教员 */
    .drone-teacher-section {
        padding-top: 60px;
    }
    .drone-teacher-section .drone-teacher-grid-wrapper {
        grid-template-columns: repeat(2, 1fr); /* 3列缩减为2列 */
        gap: 12px;
        padding: 0 10px;
        margin-top: 30px;
    }
    .drone-teacher-section .drone-teacher-info-bar {
        padding: 12px 5px;
    }
    .drone-teacher-section .drone-teacher-info-name {
        font-size: 15px;
        line-height: 22px;
    }

    /* 4. 培训案例 */
    .drone-case-section {
        padding: 60px 0;
    }

    /* 5. 相关课程 */
    .drone-related-section {
        padding-top: 40px;
        padding-bottom: 40px;
    }
    .drone-related-section .drone-related-carousel-outer {
        margin-top: 30px;
    }
    .drone-related-section .drone-related-slide-item {
        width: 38%; /* 自动调整为约2列半排列 */
    }
    .drone-related-section .drone-related-info-panel {
        padding: 15px 10px;
    }
    .drone-related-section .drone-related-info-title {
        font-size: 15px;
    }
    .drone-related-section .drone-related-meta-row {
        font-size: 14px;
        line-height: 20px;
        margin-top: 10px;
    }

    /* 6. 在线留言 */
    .drone-message-section {
        padding-bottom: 60px;
    }
    .drone-prospect-section .drone-prospect-swiper-container{
        padding-bottom:0;
    }
    .drone-teacher-section .drone-teacher-sub-title{
        font-size:16px;
    }
}

@media (max-width: 500px) {
    .drone-related-section .drone-related-carousel-outer {
        margin-top: 25px;
    }
    .drone-teacher-section .drone-teacher-more-btn{
        line-height:40px;
        padding:0 20px;
    }
    .drone-prospect-section .drone-prospect-swiper-outer {
        margin-top: 25px;
    }
    .drone-intro-section {
        padding-top: 35px;
    }
    .drone-intro-section .drone-intro-content-box {
        margin-top: 20px;
    }

    .drone-prospect-section {
        padding-top: 50px;
    }
    .drone-prospect-section .drone-prospect-slide-item {
        width: 170px;
    }

    .drone-teacher-section {
        padding-top: 50px;
    }
    .drone-teacher-section .drone-teacher-grid-wrapper {
        margin-top: 25px;
    }
    .drone-teacher-section .drone-teacher-more-box {
        margin-top: 30px;
    }

    .drone-case-section {
        padding: 50px 0;
    }

    .drone-related-section {
        padding-top: 35px;
        padding-bottom: 35px;
    }
    .drone-related-section .drone-related-slide-item {
        width: 65%; 
    }

    .drone-message-section {
        padding-bottom: 50px;
    }
}