* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html,
body {
    width: 100%;
    min-height: 100%;
}

body {
    overflow-x: hidden;
}

.block {
    position: relative;
    width: 100%;
    min-height: 620px;
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
    background-image: url(https://ioi-b-group-1308616072.cos.ap-chengdu.myqcloud.com/jh/images/logo.png), url(https://ioi-b-group-1308616072.cos.ap-chengdu.myqcloud.com/jh/images/bg.png);
    background-size: min(85.36vw, 1639px) auto, cover;
    background-position: top center, center center;
    background-repeat: no-repeat;
}

.bottom {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: clamp(400px, 46.3vh, 500px);
    padding: clamp(155px, 18.52vh, 200px) 24px 30px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), rgba(0, 0, 0, 0));
}

.bottom-area {
    width: min(100%, 1200px);
    margin: 0 auto;
    color: #e4e3df;
    font-size: clamp(18px, 1.15vw, 22px);
    line-height: 1.55;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 230px;
    column-gap: clamp(36px, 4.06vw, 78px);
    align-items: start;
}

.bottom .font {
    width: auto;
    margin: 0;
}

.bottom .steam-btn-box {
    width: 230px;
}

.bottom .steam-btn-box a {
    text-decoration: none;
}

.bottom .steam-btn-box .steam-btn {
    width: 100%;
    height: 45px;
    background: url(https://ioi-b-group-1308616072.cos.ap-chengdu.myqcloud.com/jh/images/steam-btn-bg.png) center / 100% 100% no-repeat;
    color: #e4e3df;
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.bottom .steam-btn-box .steam-btn img {
    width: 21px;
    height: 21px;
    margin-top: 2px;
    margin-right: 5px;
}

.bottom .steam-btn-box .tip {
    width: 100%;
    margin-top: 5px;
    color: #b2b3b3;
    font-size: 12px;
    line-height: 1.4;
    text-align: center;
}

.progress-bar-area {
    position: relative;
    z-index: 2;
    grid-column: 1 / -1;
    width: min(100%, 1205px);
    height: 50px;
    margin: clamp(22px, 3.25vh, 35px) auto 0;
}

.progress-bar-area .progress-bar {
    width: 100%;
    height: 17px;
    padding: 2px;
    border: 2px solid #a83e33;
}

.progress-bar-area .progress-bar .progress {
    height: 100%;
    background-color: #a83e33;
}

.progress-bar-area p {
    width: 100%;
    margin-top: 10px;
    color: #a83e33;
    line-height: 1.2;
    text-align: center;
}


@media (min-width: 769px) and (max-width: 1440px) {
    .block {
        background-size: min(92vw, 1325px) auto, cover;
    }

    .bottom {
        height: clamp(340px, 46vh, 410px);
        padding: clamp(120px, 17vh, 150px) clamp(30px, 4vw, 58px) 24px;
    }

    .bottom-area {
        grid-template-columns: minmax(0, 1fr) 210px;
        column-gap: clamp(28px, 3.5vw, 50px);
        font-size: clamp(16px, 1.45vw, 20px);
    }

    .bottom .steam-btn-box {
        width: 210px;
    }

    .bottom .steam-btn-box .steam-btn {
        font-size: 18px;
    }
}


@media (min-width: 769px) and (max-height: 800px) {
    .bottom {
        height: 330px;
        padding-top: 112px;
        padding-bottom: 18px;
    }

    .bottom-area {
        font-size: 16px;
        line-height: 1.45;
    }

    .progress-bar-area {
        margin-top: 16px;
    }
}

@media (min-width: 769px) and (max-height: 650px) {
    .bottom {
        height: 285px;
        padding-top: 88px;
        padding-bottom: 12px;
    }

    .bottom-area {
        font-size: 14px;
        line-height: 1.4;
    }

    .bottom .steam-btn-box,
    .bottom .steam-btn-box .steam-btn {
        width: 190px;
    }

    .bottom .steam-btn-box .steam-btn {
        height: 40px;
        font-size: 16px;
    }

    .progress-bar-area {
        margin-top: 10px;
    }
}

@media (max-width: 768px) {

    .block{
       background-image: url(https://ioi-b-group-1308616072.cos.ap-chengdu.myqcloud.com/jh/images/mobile-logo.png), url(https://ioi-b-group-1308616072.cos.ap-chengdu.myqcloud.com/jh/images/mobile-bg.png);
    }
    .bottom-area{display: block;}
    .bottom-area .font{ width: 76vw; font-size: 2.1vw; margin: 0 auto;}
    .bottom .steam-btn-box{ margin: 0 auto; margin-top: 4vw;}

}