body::after {
    content: "";
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200vmax;
    height: 200vmax;
    background: linear-gradient(45deg, #00FFFF, #B066FE);
    opacity: 0.2;
    z-index: -1;
    animation: stuShowRotate 10s linear infinite;
}

main {
    width: 100%;
}

.main .banner {
    width: 100%;
    height: 800px;
    position: relative;
    box-shadow: 0 15px 15px rgba(255, 255, 255, .7);
}

.main .banner-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: flex;
    flex-direction: column;
}

.banner-img img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transition: opacity 1s ease-in-out;
}

.banner-img img:nth-child(1) {
    z-index: 1;
    opacity: 1;
}

.banner-img img:nth-child(2) {
    z-index: 0;
    opacity: 0;
}

.banner-img .cover {
    display: none;
}

.banner-cont {
    position: absolute;
    top: 15%;
    left: 5%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    /* align-items: center; */
    color: var(--tex-col5);
    z-index: 2;
}

.banner-title {
    font-size: 38px;
    font-weight: bold;
    margin-bottom: 40px;
}

.banner-title span {
    font-size: 48px;
    color: var(--theme-col2);
}

.banner-desc {
    font-size: 18px;
    line-height: 40px;
    margin-bottom: 40px;
}

.banner-btn {
    display: flex;
    width: 250px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    justify-content: space-between;
    background: linear-gradient(120deg, var(--theme-col3) 30%, var(--theme-col) 100%);
    border-radius: 5px;
    font-size: var(--text2);
    color: var(--theme-col4);
    padding: 0 20px;
}

.banner-course {
    position: absolute;
    bottom: 20%;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.course-list {
    display: grid;
    width: 100%;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1px;
}

.course-item {
    width: 100%;
    padding: 15px 10px;
    background-color: rgba(255, 255, 255, 0.9);
}

.course-item .course-head,
.course-item .course-desc {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.course-head h3 {
    font-size: calc(var(--text));
    font-weight: bold;
    color: var(--tex-col1);
}

.course-head p {
    font-size: calc(var(--text2)*.8);
    color: var(--theme-col4);
    padding: 1px 3px;
    border-radius: 5px;
    display: flex;
    align-items: center;
    /* #ff6822,#ff922b */
    background: linear-gradient(45deg, #00FFFF, #B066FE);
}

.course-head p .approve-icon {
    width: 18px;
    height: 18px;
    margin-right: 3px;
}

.course-desc {
    margin-top: 15px;
    font-size: calc(var(--text2)*.9);
}

.course-desc p {
    width: 65%;
    line-height: 1.5;

}

.course-desc span {
    color: var(--theme-col);
}

.main-slogan {
    position: absolute;
    bottom: 0px;
    left: 50%;
    width: 100%;
    height: 60px;
    line-height: 60px;
    transform: translate(-50%, 50%);
    font-size: calc(var(--text) * 1.8);
    font-weight: bold;
    color: var(--tex-col5);
    text-align: center;
    z-index: 12;
}

.main-slogan::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 15px;
    background-color: rgba(255, 255, 255, .8);
    filter: blur(15px);
    z-index: -1;
}

.slogan-light {
    color: var(--theme-col2);
    font-size: calc(var(--text) * 2);
}

.show-card {
    margin-top: 40px;
}

.card-list {
    display: flex;
    justify-content: space-between;
}


/* -------------- 优势展示 -------------- */

.advantage-bcg {
    height: 900px;
    /* background-color: orange; */
    padding: 100px 0;
}

.advantage {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.advantage-item img {
    width: 100%;
    height: 100%;
    box-shadow: 0px 0px 10px rgba(255, 255, 255, .7);
}

.advantage-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 65px;
    align-items: center;
    width: var(--width);
    margin-top: 80px;
    --width: 100%;
    --height: 600px;
}

.advantage-item {
    width: 100%;
    position: relative;
}

.advantage-item-show {
    width: calc(var(--width) - 50%);
    height: calc(var(--height) + 40px);
    padding: 20px;
    position: absolute;
    border: 1.2px solid var(--theme-col4);
    top: -20px;
    right: -20px;
    border-radius: 15px;
    z-index: 1;
}

.advantage-item-show::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 15px;
    background:
        linear-gradient(45deg, rgba(0, 255, 255, .2), rgba(176, 102, 254, .2));
    filter: blur(5px);
    z-index: -1;
}

.advantage-item-show h4 {
    font-size: calc(var(--text2) * 1.2);
    font-weight: bold;
    color: var(--theme-col4);
    text-align: center;
    margin-bottom: 20px;
}

.advantage-item .advantage-item-content {
    width: 100%;
    height: var(--height);
    background-color: var(--theme-col4);
    border-radius: 8px;
    padding: 40px calc(var(--width) - 50%) 40px 20px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.advantage-item-content-flex {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.advantage-item-title {
    width: 100%;
    height: 55px;
    line-height: 55px;
    padding-left: 20px;
    background: linear-gradient(45deg, rgba(0, 255, 255, .6), rgba(176, 102, 254, .6));
    font-size: calc(var(--text2) * 1.8);
    font-weight: bold;
    color: var(--tex-col3);
    margin-bottom: 10px;
}

.advantage-item-desc,
.advantage-item-desc2 {
    font-size: calc(var(--text2) * 1.3);
    color: var(--tex-col3);
    line-height: 15px;
    padding: 8px 0;
    box-shadow: 0px 3px 10px rgba(0, 0, 0, .1);
    background-color: var(--theme-col4);
}

.advantage-item-desc-span {
    line-height: 1.5;
    font-size: calc(var(--text2) * 1.2);
    text-indent: 2em;
}

.advantage-item-desc2 p {
    margin-top: 15px;
    font-size: calc(var(--text2) * 1.1);
}

.advantage-item-desc2-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.advantage-item-desc2-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
    padding-left: 20px;
    list-style-type: disc;
}

.advantage-item-desc2-list li {
    font-size: calc(var(--text2) * 1.2);
}

/* -------------- 滚动叠加卡片 -------------- */
.rollcard {
    margin: 100px auto;
    height: 2200px;
}

.rollcard-veiw {
    width: 100%;
}

.rollcard-list {
    position: relative;
    height: 550px;
    width: 100%;
}

.rollcard-item {
    width: 70%;
    height: 550px;
    background-color: var(--clr);
    border-radius: 8px;
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
}

/* -------------- 学员作品 -------------- */
.stuShow-bcg {
    position: relative;
    width: 100%;
    overflow: hidden;
    margin-bottom: 80px;
}


@keyframes stuShowRotate {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.stuShow {
    padding: 20px 0;
}

.stuShow-title {
    margin-bottom: 40px;
}

.stuShow-title h3 {
    font-size: calc(var(--text) * 1.9);
    font-weight: bold;
    margin-bottom: 20px;
}

.stuShow-title h3 span {
    font-size: calc(var(--text) * 2);
    color: var(--theme-col2);
}


.stuShow-title p {
    font-size: calc(var(--text2) * 1.4);
    color: var(--tex-col2);
    margin-bottom: 20px;
}

.stuShow-card {
    display: flex;
    justify-content: space-between;
}

.stuShow-card>div {
    --padding: 40px;
    width: 47%;
    height: 620px;
    background-color: #ffff;



    border-radius: 8px;
    padding: var(--padding);
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.stuShow-left,
.stuShow-right {
    position: relative;
    opacity: 0;
    /* animation: stuShowMove 1s ease-in-out var(--time) forwards; */
}

.stuShow-right {
    z-index: 1;
}


.stuShow-left h3,
.stuShow-right h3 {
    color: var(--theme-col2);
    font-size: calc(var(--text) * 1.6);
    font-weight: 600;
    margin-bottom: 10px;
}

.stuShow-left-list,
.stuShow-right-list {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 20px;
    margin-left: 20px;
    font-size: calc(var(--text) * 1.4);
    color: var(--tex-col1);
    list-style-type: disc;
}

.stuShow-left-content,
.stuShow-right-content {
    font-size: calc(var(--text) * 1);
    color: var(--tex-col3);
    width: 80%;
    line-height: 1.3;
    margin-top: 10px;
    -webkit-line-clamp: 3;
    line-clamp: 3;
}

.stuShow-left-btn,
.stuShow-right-btn {
    width: 200px;
    height: 50px;
    line-height: 50px;
    text-align: center;
    background: linear-gradient(120deg, var(--theme-col3) 30%, var(--theme-col) 100%);
    border-radius: 5px;
    font-size: var(--text2);
    color: var(--theme-col4);
    padding: 0 20px;
    position: absolute;
    bottom: var(--padding);
    right: var(--padding);
}

.stuShow-left-btn a,
.stuShow-right-btn a {
    display: block;
    width: 100%;
    height: 100%;
    font-size: var(--text2);
    color: var(--tex-col4);
}

/* -------------- 合作企业 -------------- */
.cooperative {
    margin-bottom: 50px;
}

.cooperative-title {
    font-size: calc(var(--text) * 1.9);
    font-weight: bold;
    margin-bottom: 40px;
}

.cooperative-list {
    display: flex;
    /* justify-content: center; */
    flex-wrap: nowrap;
    gap: 20px;
}

.cooperative-item {
    background-color: #fbfbf9;
    height: 200px;
    width: 200px;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 5px 15px;
    border-radius: 8px;
    position: relative;
}

.cooperative-item p {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    font-size: calc(var(--text) * 1.5);
    color: var(--tex-col1);
    opacity: 0;
    transition: all 0.5s ease-in-out;
}

.cooperative-logo {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    transition: all 0.5s ease-in-out;
    overflow: hidden;
}

.cooperative-logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    /* border-radius: 50%; */
}

.cooperative-item:hover p {
    opacity: 1;
    transform: scale(1.1) translate(-50%, -50%);
    font-weight: 600;
}

.cooperative-item:hover .cooperative-logo {
    opacity: 0.2;
    transform: scale(1.3);
    border-radius: 0%;
}