:root {
    /* 默认 1920 像素的宽度 */
    --title-size: 52px;
    --sub-title-size: 32px;
    --text-size: 24px;
}

.container {
    position: relative;
}

.flex {
    display: flex;
    display: -webkit-flex;
}

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

.flex.jc {
    justify-content: center;
}

.flex.js {
    justify-content: space-between;
}

.container {
    width: 100%;
    height: 100vh;
    padding: 61px 7% 20px;
    box-sizing: border-box;
    background-image: linear-gradient(327deg, #ffe8724a 0%, #ffffff33 50%, #01ea911a 79%, #01ea910f 100%, #01ea9130 100%);
    overflow-y: auto;
}

.header {
    justify-content: flex-end;
    padding-bottom: 6%;
    direction: ltr;
}

.header .language {
    font-size: var(--sub-title-size);
    color: #777777;
}

.header .language-option {
    text-align: center;
    width: 196px;
    height: 61px;
    font-weight: 600;
    font-size: 28px;
    color: #333333;
    appearance: none;
    border: none;
    cursor: pointer;
    outline: none;
    padding-inline-end: 46px;
    margin-inline-start: 26px;
    border-radius: 11px;
    box-sizing: border-box;
    background-color: #33333314;
    background-image: url('../images/icon_arrow.png');
    background-repeat: no-repeat;
    background-position: 150px center;
    background-size: 31px 31px;
    transition: background 0.3s;
}

.header .language-select {
    position: relative;
    text-align: center;
    min-width: 196px;
    height: 61px;
    font-weight: 600;
    font-size: 28px;
    color: #333333;
    appearance: none;
    border: none;
    cursor: pointer;
    outline: none;
    padding: 0 15px;
    margin-inline-start: 26px;
    border-radius: 11px;
    box-sizing: border-box;
    background-color: #ecefee;
}

.header .language-select::after {
    content: '';
    display: block;
    width: 31px;
    height: 31px;
    margin-inline-start: 12px;
    background-image: url('../images/icon_arrow.png');
    background-size: contain;
    transition: transform 0.3s;
}

.header .language-select-value {
    flex: 1;
    font-weight: inherit;
}

.header .language-select:focus::after {
    transform: rotateZ(180deg);
}

.header .language-select:focus .language-select-options {
    display: block;
    top: calc(100% + 2px);
    opacity: 1;
    visibility: visible;
}

.header .language-select-options {
    position: absolute;
    top: calc(100% - 10px);
    left: 0;
    visibility: hidden;
    width: 100%;
    opacity: 0;
    border-radius: inherit;
    background-color: inherit;
    transition: all 0.3s;
}

.header .language-select-options-option {
    font: inherit;
    height: 61px;
}

.introduce {
    padding-bottom: 75px;
}

.introduce .desc {
    flex: 1;
    width: 55%;
    flex-direction: column;
    padding-top: 6%;
}

.introduce .desc .title,
.introduce .desc .subTitle {
    width: max-content;
    font-family: PingFangSC, PingFang SC;
    font-weight: 600;
    font-size: var(--sub-title-size);
    color: #50E1AD;
    line-height: 46px;
    padding-bottom: 10px;
    background-image: linear-gradient(90deg, #14B870, #50E1AD);
    background-clip: text;
    -webkit-background-clip: text;
    background-origin: border-box;
    -webkit-text-fill-color: transparent;
}

.introduce .desc .title {
    font-size: var(--title-size);
    padding-bottom: 32px;
}

.introduce .desc .text {
    font-size: var(--text-size);
    font-family: PingFangSC, PingFang SC;
    font-weight: 500;
    color: #14B870;
    line-height: 1.5;
}

.introduce .desc .text+.text {
    margin-top: 24px;
}

.introduce .platform {
    padding-top: 46px;
}

.introduce .platform .android,
.introduce .platform .ios {
    width: 256px;
    height: 70px;
    font-size: 28px;
    font-family: PingFangSC, PingFang SC;
    font-weight: 600;
    color: #000000;
    border-radius: 9999px;
    background-image: linear-gradient(90deg, #FFE872, #00EA92);
    cursor: pointer;
}

.introduce .platform .android {
    margin-inline-end: 20px;
}

.introduce .platform .android img,
.introduce .platform .ios img {
    width: 46px;
    height: 45px;
    object-fit: contain;
    margin-inline-end: 12px;
}

.introduce .pic {
    padding-inline-start: 36px;
    width: 44%;
    box-sizing: border-box;
}

.introduce .pic img {
    display: block;
    width: 100%;
    height: auto;
}

.imgs {
    margin-bottom: 75px;
    overflow-x: auto;
}

.imgs img {
    flex-shrink: 0;
    width: 22%;
    height: auto;
    margin-inline-end: 2%;
}

.imgs img:last-child {
    margin-inline-end: 0;
}

.footer {
    flex-direction: column;
    text-align: center;
    padding-top: 14px;
    border-top: 1px solid #DDEAE6;
}

.footer .copyright {
    font-size: 14px;
    font-family: PingFangSC, PingFang SC;
    font-weight: 600;
    color: #A6A6A6;
    line-height: 21px;
}

.links {
    padding-top: 14px;
}

.links a {
    font-size: 14px;
    font-family: PingFangSC, PingFang SC;
    font-weight: 600;
    color: #646464;
    line-height: 19px;
    text-decoration: underline;
    padding: 0 29px;
}


@media screen and (max-width: 1440px) {
    :root {
        --title-size: 46px;
        --sub-title-size: 26px;
        --text-size: 18px;
    }
}