:root {
    --swiper-pagination-bottom: -16px;
    --swiper-pagination-color: #00A8FF;
    --swiper-wrapper-transition-timing-function: linear;
}

html {
    font-size: 20px;
    color: #333;
    font-family: Manrope;
    overflow-x: hidden;
}

body {
    margin: 0;
    position: relative;
    width: 100vw;
    overflow-x: hidden;
    font-family: Manrope;
}

#swiper1 img {
    height: 4rem;
    width: auto;
    object-fit: contain;
}

.header {
    background-image: url(../images/summer/back.jpg);
    padding-bottom: 137px;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    color: #fff;
    width: 100%;
    height: auto;
}

.part-sponsor {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px 24px;
}

.part-sponsor img {
    width: 100%;
    height: auto;
    box-shadow: 0rem 1.2rem 6.7rem 0rem rgba(0, 0, 0, 0.07);
    border-radius: 85.714px;
}

#sponsor-mobile {
    display: none;
}

.margin-15 {
    width: 66rem;
    margin: 0 auto;
}


.gap8 {
    gap: .4rem;
}

.gap24 {
    gap: 1.2rem;
}

.flex {
    display: flex;
    align-items: center;
}

.part1 {
    padding-top: 2rem;
    padding-bottom: 2rem;
    height: 2rem;
}

.part2 {
    margin-top: 3.75rem;
    align-items: flex-end;
}

.part2-left {
    width: 28rem;
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
    position: relative;
}

.part2-star {
    position: absolute;
    top: -1rem;
    left: 21rem;
}

.part2-left-txt {
    font-size: 2.4rem;
    font-style: normal;
    font-weight: 500;
}

.part2-left-txt-1 {
    height: 1rem;
    width: fit-content;
}

.sponsor {
    color: #8A8A8A;
    font-family: Manrope;
    font-size: .8rem;
    font-style: normal;
    font-weight: 600;
    line-height: 1.2rem;
    display: flex;
    align-items: center;
    gap: .8rem;
}

.part2-left-desc {
    font-size: .8rem;
}

.part2-left-icon2 {
    margin-left: 2.4rem;
}

.part2-left-txt1 {
    font-size: 1.1rem;
    font-style: normal;
    line-height: 1.6rem;
}

.part2-left-btn {
    display: flex;
    padding: .8rem 1.6rem;
    justify-content: center;
    align-items: center;
    gap: .4rem;
    color: #020826;
    font-size: .9rem;
    font-style: normal;
    font-weight: 700;
    border-radius: 2.4rem;
    background: #FFF;
    width: fit-content;
}

.part2-right {
    flex: 1;
    gap: 1.05rem;
    position: relative;
    align-items: flex-end;
    justify-content: flex-end;
}


.part2-right-1 {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 1.2rem;
}

.part2-right-1 img:first-child {
    width: 10.2rem;
    height: 10.2rem;
    flex-shrink: 0;
}

.part2-right-1 img:last-child {
    width: 15.85rem;
    height: 12rem;
    flex-shrink: 0;
}

.part2-right-img3 {
    width: 17.5rem;
    height: 23.85rem;
    flex-shrink: 0;
}

.part3 {
    height: 19.6rem;
    width: 66rem;
    background: url(../images/landing/p3-bg.svg) no-repeat;
    background-size: 100% 100%;
    margin-top: 4.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #26B5FF;
}

.part3-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
}

.part3-item-img2 {
    background: url(../images/landing/p3-img4.svg) no-repeat center / cover;
    width: 9rem;
    height: 3.2rem;
}

.part3-item a {
    color: var(--White, #FFF);
    text-align: center;
    font-style: normal;
    line-height: normal;
    text-decoration: none;
}

.part3-item a span {
    font-weight: 600;
}

.part3-line {
    width: .05rem;
    height: 14.15rem;
    background: rgba(255, 255, 255, 0.17);
}

.part4 {
    justify-content: space-between;
    margin-top: 8rem;
}

.part4-left {
    position: relative;
}


#swiper2 {
    height: 19.5rem;
    position: unset;
}

#swiper2 .swiper-wrapper {
    width: 27.95rem;
    height: 18.65rem;
}

.part4-img1 img {
    border-radius: 1rem;
}

.part4-icon {
    position: absolute;
    right: -2.4rem;
    top: -2.75rem;
}

.part4-right {
    font-size: 1rem;
    font-style: normal;
    line-height: 1.6rem;
    width: 33.6rem;

}


.part4-right-txt1 {
    color: #020826;
    font-family: Manrope;
    font-size: 2.2rem;
    font-style: normal;
    font-weight: 500;
    line-height: 3rem;
}

.part4-right-txt2 {
    background: var(--Graident, linear-gradient(96deg, #5AB3F9 -58.87%, #3C8AFE 25.09%, #5E4CFF 101.06%));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-family: Manrope;
    font-size: 2.2rem;
    font-style: normal;
    font-weight: 500;
    line-height: 3rem;
    margin-bottom: 1.8rem;
}

.part5 {
    color: #020826;
    font-size: 2.2rem;
    font-style: normal;
    font-weight: 600;
    line-height: 3rem;
    margin: 6rem auto 4rem;
    position: relative;
    width: fit-content;
}

.part5 .part5-star {
    position: absolute;
    top: -1.5rem;
    left: 18rem;
}


.part6-left {
    display: grid;
    grid-template-columns: 14.4rem repeat(3, 15.6rem);
    grid-template-rows: 15.25rem;
    gap: 1.6rem;

}

.part6-left-1 {
    background: var(--Graident, linear-gradient(96deg, #5AB3F9 -58.87%, #3C8AFE 25.09%, #5E4CFF 101.06%));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-family: Manrope;
    font-size: 2.2rem;
    font-style: normal;
    font-weight: 500;
    line-height: 3rem;
    /* 136.364% */
}

.part6-left>div:not(.part6-left-1) {
    box-shadow: 0rem 1.2rem 3.7rem 0rem rgba(0, 0, 0, 0.07);
    border-radius: 1.2rem;
    background-repeat: no-repeat;
    background-size: 100% 100%;
}

.part6-left>div:nth-child(2) {
    background-image: url(../images/summer/event1.svg);
}

.part6-left>div:nth-child(3) {
    background-image: url(../images/summer/event2.svg);
}

.part6-left>div:nth-child(4) {
    background-image: url(../images/summer/event3.svg);
}

.part6-right {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: 12.4rem;
    gap: 2rem;
    margin-top: 1.6rem;
}

.part6-right>div {
    border-radius: 1.2rem;
    background-repeat: no-repeat;
    background-size: 100% 100%;
    box-shadow: 0rem 1.2rem 3.7rem 0rem rgba(0, 0, 0, 0.07);
}

.part6-right>div:nth-child(1) {
    background-image: url(../images/summer/event4.svg);
}

.part6-right>div:nth-child(2) {
    background-image: url(../images/summer/event5.svg);
}

.part7 {
    margin-top: 4.1rem;
    margin-bottom: 6rem;
}


.part7-down {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.2rem;
    grid-template-rows: repeat(2, 8.6rem);
}

.part7-down div {
    background-repeat: no-repeat;
    background-size: 100% 100%;
    border-radius: 1.2rem;
    box-shadow: 0rem 1.2rem 3.7rem 0rem rgba(0, 0, 0, 0.07);
}

.part7-down>div:nth-child(1) {
    background-image: url(../images/summer/agenda1.png);
}

.part7-down>div:nth-child(2) {
    background-image: url(../images/summer/agenda2.png);
}

.part7-down>div:nth-child(3) {
    background-image: url(../images/summer/agenda3.png);
}

.part7-down>div:nth-child(4) {
    background-image: url(../images/summer/agenda4.png);
}

.part7-down>div:nth-child(5) {
    background-image: url(../images/summer/agenda5.png);
}

.part7-down>div:nth-child(6) {
    background-image: url(../images/summer/agenda6.png);
}


.part7-txt1 {
    color: #020826;
    text-align: center;
    font-size: 2.2rem;
    font-style: normal;
    font-weight: 600;
    line-height: 3rem;
    margin-bottom: 2.8rem;
}

.part8 {
    background: #F2FBFF;
}

.part8-item {
    display: flex;
    padding: 1.2rem 0;
    align-items: center;
    gap: .5rem;
}

.part8-left {
    height: 1.55rem;
}

.part8-center {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    flex: 1 0 0;
    color: #333;
    font-size: .7rem;
    font-style: normal;
    font-weight: 400;
    line-height: 1.1rem;
}

.part8-right {
    display: flex;
    height: 1rem;
    align-items: center;
    gap: 1rem;
    color: #333;
    font-size: .7rem;
    font-style: normal;
    font-weight: 500;
    line-height: 1.1rem;
}


.icon3 {
    position: absolute;
    left: 0;
    top: 46rem;
    width: 100%;
    height: 33.95rem;
    z-index: -1;
}

.icon4 {
    position: absolute;
    right: -5rem;
    bottom: 58rem;
    width: 70rem;
    height: 42rem;
    z-index: -1;
}

.icon5 {
    display: none;
}

@media (max-width: 1320px) {
    html {
        font-size: 18px;
    }


    .part8-center {
        gap: 1rem;
    }
}


@media (max-width: 1200px) {
    html {
        font-size: 16px;
    }
}

@media (max-width: 1056px) {
    html {
        font-size: 15px;
    }
}

@media (max-width: 990px) {
    html {
        font-size: 14px;
    }
}

@media (max-width: 924px) {
    html {
        font-size: 12px;
    }
}

@media (max-width: 800px) {
    html {
        font-size: 20px;
    }

    .header {
        background-image: url(../images/summer/back1.jpg);
    }

    .part-sponsor {
        grid-template-columns: repeat(2, 1fr);
        /* 改为2列 */
        gap: 20px 12px;
        /* 减小间距 */
    }

    .part-sponsor {
        display: none;
    }

    #sponsor-mobile {
        display: block;
    }

    .margin-15 {
        width: 17.65rem;
    }

    #swiper2 {
        height: 15.5rem;
    }

    #swiper2 .swiper-wrapper {
        width: 18.25rem;
        height: 14.65rem;
    }


    .part2 {
        flex-direction: column;
        margin-top: 2.9rem;
    }

    .part2-left {
        width: unset;
    }

    .part2-right {
        gap: .675rem;
        flex-direction: row-reverse;
    }

    .part2-right-1 {
        align-items: flex-start;
        gap: .8rem;
    }

    .part2-left-txt {
        font-size: 1.8rem;
        line-height: normal;
    }

    .part2-star {
        top: -0.5rem;
        left: 13rem;
    }

    .part2-right-img3 {
        width: 8.9789rem;
        height: 12.237rem;
    }

    .part2-right-1 img:first-child {
        width: 5.2334rem;
        height: 5.2334rem;
    }

    .part2-left-txt1 {
        font-size: 1rem;
    }

    .part2-left-btn {
        font-weight: normal;
    }

    .part2-left-icon2 {
        margin-left: 1.6rem;
    }

    .part2-right-1 img:last-child {
        width: 8.1323rem;
        height: 6.157rem;
    }

    .part3 {
        background: url(../images/landing/p3-bg2.svg) no-repeat;
        width: 17.65rem;
        height: 41rem;
        flex-direction: column;
    }

    .part3-line {
        width: 13.25rem;
        height: .05rem;
    }

    .part4 {
        flex-direction: column;
        margin-top: 4.4rem;
    }

    .part4-icon {
        right: -0.4rem;
        top: -2.5rem;
    }

    .part4-right {
        margin-top: 2rem;
        width: 100%;
    }

    .part4-right-txt1,
    .part4-right-txt2 {
        font-size: 1.8rem;
    }

    .part4-right-txt1 {
        margin-bottom: 1.6rem;
    }

    .part4-right-txt2 {
        display: inline;
    }

    .part5 {
        font-size: 1.8rem;
        margin-top: 3.2rem;
    }

    .part5 .part5-star {
        left: 14rem;
    }

    .part6-left {
        grid-template-columns: 1fr;
        grid-template-rows: auto 14.9rem 13.75rem 13.35rem;
    }

    .part6-left>div:nth-child(2) {
        background-image: url(../images/summer/event1-1.svg);
    }

    .part6-left>div:nth-child(3) {
        background-image: url(../images/summer/event2-1.svg);
    }

    .part6-left>div:nth-child(4) {
        background-image: url(../images/summer/event3-1.svg);
    }

    .part6-right>div:nth-child(1) {
        background-image: url(../images/summer/event4-1.svg);
    }

    .part6-right>div:nth-child(2) {
        background-image: url(../images/summer/event5-1.svg);
    }

    .part7-down>div:nth-child(1) {
        background-image: url(../images/summer/agenda11.png);
    }

    .part7-down>div:nth-child(2) {
        background-image: url(../images/summer/agenda21.png);
    }

    .part7-down>div:nth-child(3) {
        background-image: url(../images/summer/agenda31.png);
    }

    .part7-down>div:nth-child(4) {
        background-image: url(../images/summer/agenda41.png);
    }

    .part7-down>div:nth-child(5) {
        background-image: url(../images/summer/agenda51.png);
    }

    .part7-down>div:nth-child(6) {
        background-image: url(../images/summer/agenda61.png);
    }


    .part7-txt1 {
        margin-bottom: 1.8rem;
    }

    .part6-left-1 {
        font-size: 1.4rem;
    }

    .part6-right {
        grid-template-columns: 1fr;
        grid-template-rows: 14rem 12.15rem;
    }

    .part7-down {
        grid-template-columns: 1fr;
        grid-template-rows: repeat(6, 8.6rem);
    }

    .part8-item {
        flex-direction: column;
        padding-bottom: 0;
        padding-left: 0;
        padding-right: 0;
        margin-top: 4rem;
        justify-content: center;
        width: unset;
    }


    .part8-center {
        flex-direction: column;
        gap: .7rem;
        margin-top: 1.2rem;
    }

    .part8-center {
        gap: 1rem;
    }

    .part8-right {
        padding: 1.2rem 0;
        border-top: solid .05rem #E6E6E6;
        width: 100%;
        justify-content: center;
    }

    .icon4 {
        width: 100%;
    }

    .icon3 {
        top: 47rem;
        width: 58rem;
    }

    .icon4 {
        right: .15rem;
        bottom: 12.15rem;
    }

    .icon5 {
        display: block;
        position: absolute;
        left: 0;
        top: 46rem;
        width: 100%;
        height: 33.95rem;
        z-index: -1;
    }
}