body,
h1,
p,
img {
    margin: 0;
    padding: 0;
    border: 0;
}

body {
    background-color: #1a1a1a;
    color: #fff;
}

a {
    text-decoration: none;
}

/* pc */
@media (min-device-aspect-ratio: 1/1) {

    body {
        width: 500px;
        margin: 0 auto;
    }

    #headline {
        height: 110px;
        font-size: 30px;
        color: #ff638f;
        line-height: 110px;
        text-align: center;
    }

    #subtitle {
        height: 80px;
        font-size: 25px;
        color: #ff638f;
        line-height: 80px;
        text-align: center;
    }

    #content_table {
        width: 480px;
        margin: 0 auto;
    }

    .content_table_item {
        display: block;
        float: left;
        padding: 7px 5px 0 5px;
        width: 86px;
    }

    .content_table_icon {
        display: block;
        width: 86px;
        height: 86px;
        border-radius: 15px;
    }

    .content_table_title {
        width: 86px;
        height: 40px;
        font-size: 17px;
        color: #fff;
        line-height: 40px;
        text-align: center;
    }

    #content_list {
        width: 470px;
        margin: 12px auto 0 auto;
    }

    .content_list_title {
        font-size: 25px;
        font-weight: bold;
        padding: 20px 0;
    }

    .content_list_item {
        position: relative;
        width: 470px;
        height: 75px;
        padding-bottom: 20px;
    }

    .content_list_item_icon {
        position: absolute;
        top: 0;
        left: 0;
        width: 75px;
        height: 75px;
        border-radius: 13px;
    }

    .content_list_item_title {
        position: absolute;
        top: 12px;
        left: 92px;
        height: 22px;
        font-size: 22px;
        line-height: 22px;
    }

    .content_list_item_subtitle {
        position: absolute;
        top: 45px;
        left: 92px;
        height: 16px;
        font-size: 16px;
        line-height: 16px;
    }

    .content_list_item_download_button {
        display: block;
        position: absolute;
        top: 15px;
        right: 0;
        width: 120px;
        height: 45px;
        background-color: #27fdb9;
        border-radius: 22px;
        font-size: 19px;
        font-weight: bold;
        line-height: 45px;
        color: #000;
        text-align: center;
    }

    #footer {
        height: 75px;
        font-size: 17px;
        text-align: center;
        line-height: 75px;
    }

}

/* phone */
@media (max-device-aspect-ratio: 1/1) {

    #headline {
        height: 25vw;
        font-size: 6vw;
        color: #ff638f;
        line-height: 25vw;
        text-align: center;
    }

    #subtitle {
        height: 18vw;
        font-size: 5vw;
        color: #ff638f;
        line-height: 18vw;
        text-align: center;
    }

    #content_table {
        width: 95vw;
        margin: 0 auto;
    }

    .content_table_item {
        display: block;
        float: left;
        padding: 1.5vw 1vw 0 1vw;
        width: 17vw;
    }

    .content_table_icon {
        display: block;
        width: 17vw;
        height: 17vw;
        border-radius: 3vw;
    }

    .content_table_title {
        width: 17vw;
        height: 8vw;
        font-size: 3.4vw;
        color: #fff;
        line-height: 8vw;
        text-align: center;
    }

    #content_list {
        width: 93vw;
        margin: 2.5vw auto 0 auto;
    }

    .content_list_title {
        font-size: 5vw;
        font-weight: bold;
        padding: 4vw 0;
    }

    .content_list_item {
        position: relative;
        width: 93vw;
        height: 15vw;
        padding-bottom: 4vw;
    }

    .content_list_item_icon {
        position: absolute;
        top: 0;
        left: 0;
        width: 15vw;
        height: 15vw;
        border-radius: 2.64vw;
    }

    .content_list_item_title {
        position: absolute;
        top: 2.5vw;
        left: 18.5vw;
        height: 4.5vw;
        font-size: 4.5vw;
        line-height: 4.5vw;
    }

    .content_list_item_subtitle {
        position: absolute;
        top: 9vw;
        left: 18.5vw;
        height: 3.3vw;
        font-size: 3.3vw;
        line-height: 3.3vw;
    }

    .content_list_item_download_button {
        display: block;
        position: absolute;
        top: 3vw;
        right: 0;
        width: 24vw;
        height: 9vw;
        background-color: #27fdb9;
        border-radius: 4.5vw;
        font-size: 3.9vw;
        font-weight: bold;
        line-height: 9vw;
        color: #000;
        text-align: center;
    }

    #footer {
        height: 15vw;
        font-size: 3.5vw;
        text-align: center;
        line-height: 15vw;
    }

}