.w1220 {
    width: 1320px;
    margin: 0 auto;
}

body {
    background: #f7f7f7;
}

.content-top {
    width: 100%;
    background: #000;
    padding: 20px 0;
    margin-top: 60px;
}

/* 图片开始 */
.content-top-img {
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 20px;
}

.content-top-img {
    border-radius: 8px;
    overflow: hidden;
    margin-bottom: 20px;
}

.content-top-img img {
    width: 100%;
    height: auto;
    display: none;
}

/* 图片结束 */

/* 简介开始 */
.content-top-text p {
    font-size: 24px;
    font-weight: 700;
    width: 100%;
    line-height: 34px;
    text-align: left;
    color: #fff;
    margin-bottom: 16px;
}

.content-top-text ul {
    display: flex;
}

.content-top-text ul li {
    width: 68px;
    height: 32px;
    line-height: 32px;
    color: #fff;
    text-align: center;
    border-radius: 4px;
    background: rgba(247, 247, 247, 0.3);
    margin-right: 16px;
    margin-bottom: 16px;
}

.content-top-text span {
    font-size: 14px;
    text-align: left;
    color: rgba(255, 255, 255, .8);
    display: inline-block;
    line-height: 20px;
}

.content-top-text span:first-child {
    margin-right: 30px;
}

/* 简介结束 */

/* 介绍开始 */
.content-bottom {
    padding: 50px 0 40px 0;
    display: flex;
    justify-content: space-between;
}

.content-bottom-left {
    width: 914px;
}

.introduction {
    padding: 20px;
    background-color: #fff;
    border-radius: 8px;
}


.introduction p:first-child {
    width: 80px;
    height: 40px;
    font-weight: 700;
    font-size: 20px;
    text-align: left;
    color: #333;
    position: relative;
    margin-bottom: 20px;
}

.introduction p:first-child i {
    width: 38px;
    height: 3px;
    border-radius: 1.5px;
    background: #0ac19f;
    position: absolute;
    left: 50%;
    bottom: 0;
    margin-left: -19px;
}

.introduction p:last-child {
    width: 100%;
    font-weight: 400;
    font-size: 14px;
    color: #333;
    text-indent: 2em;
    display: -webkit-box;
    -webkit-line-clamp: 6;
    /* 限制6行 */
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
}
/* 介绍结束 */

/* 横幅开始 */
.banner-img {
    width: 100%;
    height: 120px;
    border-radius: 8px;
    overflow: hidden;
    margin-top: 30px;
    position: relative;
}

.banner-img .swiper,
.banner-img .swiper-slide {
  width: 100%;
  height: 100%;
}

.banner-img .swiper-slide a {
  display: block;
  width: 100%;
  height: 100%;
}

.banner-img .swiper-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover; /* 推荐：保持比例并覆盖整个区域 */
  display: block;
}

/* 横幅结束 */

/* 右侧讲师开始 */
.content-bottom-right {
    width: 376px;
    height: 192px;
    background: #fff;
    border-radius: 8px;
    padding: 20px;
    box-sizing: border-box;
}

.right-title {
    font-weight: 700;
    font-size: 20px;
    text-align: left;
    color: #333;
}

.teacher-info {
    margin-top: 20px
}

.teacher-info img {
    width: 40px;
    height: 40px;
    margin-right: 20px;
}

.teacher-info span {
    font-weight: 700;
    font-size: 16px;
    text-align: left;
    color: #333;
    margin-bottom: 24px;
}

.right-content {
    margin-top: 10px;
    font-weight: 400;
    font-size: 14px;
    line-height: 28px;
    text-align: left;
    color: #999;
}
/* 右侧讲师结束 */