.grayDiv {
    width: 100%;
    height: auto;
    background: rgba(244, 244, 244, 1);
    box-shadow: 0px 2px 4px 0px rgba(148, 148, 148, 0.5);
}

.blueDiv {
    width: 100%;
    height: auto;
    background: rgb(229 232 247);
    box-shadow: 0px 2px 4px 0px rgba(148, 148, 148, 0.5);
}

.blackDiv {
    width: 100%;
    height: auto;
    background: rgb(33 26 34);
    box-shadow: 0px 2px 4px 0px rgba(148, 148, 148, 0.5);
}

.padding_top {
    padding-top: 50px;
}

.separator {
    padding-bottom: 80px;
}

.hide {
    display: none;
}

.mainTitle {
    width: 900px;
    height: auto;
    margin: 0 auto;
    position: relative;
    display: block;
    margin-top: 60px;
    text-align: center;
}

.cleanTitle {
    width: 900px;
    height: auto;
    margin: 0 auto;
    position: relative;
    display: block;
    margin-top: 60px;
    text-align: center;
}

.mainTitle span {
    display: inline-block;
    height: 150px;
    width: 890px;
    font-size: 50px;
    font-family: PingFang-SC-Heavy, PingFang-SC;
    font-weight: 800;
    line-height: 150px;
    background-color: blueviolet;
    color: white;
}

.cleanTitle span {
    display: inline-block;
    height: 150px;
    width: 890px;
    font-size: 75px;
    font-family: "Changa One", serif;
    line-height: 150px;
    color: black;
}

.subTitle {
    width: 890px;
    height: auto;
    margin: 0 auto;
    position: relative;
    display: block;
    margin-top: 5px;
    text-align: left;
}

.subTitle span {
    display: inline-block;
    height: 33px;
    font-size: 22px;
    font-family: sans-serif;
    font-weight: 800;
    color: rgba(102, 102, 102, 1);
    line-height: 33px;
}

.details {
    width: 890px;
    height: auto;
    margin: 0 auto;
    position: relative;
    display: block;
    text-align: left;
    margin-bottom: 5px;
    font-size: 50px;
    font-family: "var(--font-roboto)", serif;
    line-height: 75px;
}

.details video {
    width: 100%;
}

.line {
    margin-top: 30px;
    margin-bottom: 10px;
    width: 100%;
}


.title {
    width: 200px;
    margin-left: 50px;
}

.title span {
    display: inline-block;
    font-size: 40px;
    font-family: PingFang-SC-Bold, PingFang-SC;
    font-weight: bold;
    color: rgba(51, 51, 51, 1);
    line-height: 25px;
}

.value {
    width: 500px;
}

.value span {
    display: inline-block;
    width: 100%;
    font-size: 40px;
    font-family: PingFang-SC-Bold, PingFang-SC;
    color: rgba(51, 51, 51, 1);
    line-height: 25px;
}

ul {
    list-style-type: disc;
}

.teachers {
    width: 890px;
    height: 800px;
    margin: 0 auto;
    position: relative;
    display: block;
    text-align: center;
    margin-bottom: 5px;
    margin-top: 20px;
}

.teacher {
    width: 100%;
    text-align: center;
}

.teacher img {
    height: 800px;
    width: auto;
    text-align: center;
}

.teacherLeft {
    cursor: pointer;
    position: absolute;
    left: 7px;
    top: 390px;
}

.teacherRight {
    cursor: pointer;
    position: absolute;
    left: 820px;
    top: 390px;
}

.teacherDots {
    position: absolute;
    left: 760px;
    top: 780px;
}

.oneLine {
    width: 900px;
    height: auto;
    margin: 0 auto;
    position: relative;
    display: block;
    margin-top: 10px;
    margin-bottom: 20px;
}

.center {
    text-align: center;
}

.left {
    text-align: left;
}

.bigCircle {
    width: 360px;
    height: 360px;
    box-shadow: 0px 1px 12px 0px rgb(58 2 58 / 0.50);
    border-radius: 180px;
    margin-top: 20px;
    text-align: center;
}

.bigCircle a {
    color: rgba(102, 102, 102, 1);
    text-decoration: none;
    text-shadow: 0px 1px 12px rgba(255, 255, 255, 0.5);
    text-align: center;
    width: auto;
}

.vision {
    background: rgb(162 177 211/0.50);
}

.mission {
    background: rgb(191 233 191/0.50);
}

.companyValue {
    margin-left: 160px;
    background: rgb(138 129 129 / 0.50);
}

.top {
    margin-top: 50px;
    text-align: center;
}

.top span {
    font-size: 80px;
}

.bottom {
    margin-top: 30px;
    text-align: center;
    padding: 0px 30px 0px 30px;
}

.bottom span {
    font-size: 31px;
}


.learnMore {
    width: 900px;
    height: auto;
    margin: 0 auto;
    position: relative;
    display: block;
    text-align: right;
}

.learnMore span {
    font-size: 40px;
    font-family: PingFang-SC-Heavy, PingFang-SC;
    line-height: 40px;
    padding: 0px 20px 0px 20px;
    text-decoration: none;
    text-align: center;
    width: auto;
}



/* The actual timeline (the vertical ruler) */
.timeline {
    width: 900px;
    height: auto;
    margin: 0 auto;
    position: relative;
    display: block;
    text-align: center;
}

.timeline::after {
    content: '';
    position: absolute;
    width: 6px;
    background-color: white;
    top: 0;
    bottom: 0;
    left: 10%;
    margin-left: -3px;
}

.container {
    padding: 10px 40px;
    position: relative;
    background-color: inherit;
    left: 250px;
    width: 80%;
    text-align: left;
}

.container::after {
    content: '';
    position: absolute;
    width: 25px;
    height: 25px;
    right: -17px;
    background-color: white;
    border: 4px solid #FF9F55;
    top: 15px;
    border-radius: 50%;
    z-index: 1;
}

.left {
    left: 0;
}

.right {
    left: 39px;
}

.left::before {
    content: " ";
    height: 0;
    position: absolute;
    top: 22px;
    width: 0;
    z-index: 1;
    right: 30px;
    border: medium solid white;
    border-width: 10px 0 10px 10px;
    border-color: transparent transparent transparent white;
}

.right::before {
    content: " ";
    height: 0;
    position: absolute;
    top: 22px;
    width: 0;
    z-index: 1;
    left: 30px;
    border: medium solid white;
    border-width: 10px 10px 10px 0;
    border-color: transparent white transparent transparent;
}

.right::after {
    left: -16px;
}

.content {
    padding: 20px 30px;
    background-color: white;
    position: relative;
    border-radius: 6px;
}

.content li {
    margin-bottom: 10px;
    font-size: 35px;
}

.container h2 {
    font-size: 40px;
}

.container p {
    font-size: 35px;
}

.courses {
    width: 890px;
    margin: 0 auto;
    position: relative;
    display: none;
    text-align: center;
    margin-bottom: 5px;
    margin-top: 20px;
}

.course {
    width: 100%;
    text-align: center;
}

.course img {
    width: 890px;
    text-align: center;
}

.courseLeft {
    cursor: pointer;
    position: absolute;
    left: 7px;
    top: 220px;
}

.courseRight {
    cursor: pointer;
    position: absolute;
    left: 820px;
    top: 220px;
}

.courseDots {
    position: absolute;
    left: 800px;
    top: 480px;
}