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

body {
    background-color: #001826;
    font-family: sans-serif;
    margin: 0 20px
}

.card {
    max-width: 480px;
    margin: 20px auto;
    background-color: #fff;
    border-radius: 20px;
    padding: 20px;
}

.card_icon {
    display: block;
    width: 96px;
    height: 96px;
    border-radius: 24px;
    margin: 0 auto;
    object-fit: cover;
}

.card_title {
    font-size: 20px;
    font-weight: bold;
    text-align: center;
    margin-top: 16px;
    margin-bottom: 16px;
}

.card_goghlink {
    color: #D4014E;
    font-size: 14px;
    font-weight: bold;
    text-align: center;
    text-decoration: underline #D4014E;
    margin-bottom: 32px;
}

/* タブ */
.tabs {
    display: flex;
    justify-content: center;
    gap: 32px;
}

.tab {
    font-size: 14px;
    font-weight: bold;
    color: #000;
    cursor: pointer;
    position: relative;
    padding-bottom: 6px;
}

.tab.active {
    color: #D4014E;
}

/* 選択中のタブ下に赤い線 */
.tab.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    margin: 0 auto;
    height: 2px;
    background-color: #D4014E;
}

/* タブコンテンツを隠す/表示するためのクラス */
.tab-content {
    display: none;
    text-align: center;
    margin-top: 24px;
}

.tab-content.active {
    display: block;
}

.msg {
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 12px;
    line-height: 1.4;
}

.msg_description {
    font-size: 12px;
    margin-bottom: 16px;
    line-height: 1.6;
}

/* 通知画像例(iOS) */
.ios-notification {
    width: 260px;
    object-fit: contain;
}

/* Android用のボタン */
.button {
    display: block;
    width: 100%;
    max-width: 320px;
    height: 48px;
    margin: 0 auto;
    background-color: #D4014E;
    color: #fff;
    font-size: 14px;
    font-weight: bold;
    border: none;
    border-radius: 999px;
    cursor: pointer;
    line-height: 48px;
}

/* タイムライン全体の枠 */
.timeline {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;

    width: 100%;
    margin: 0 auto 20px;
    padding: 20px;
    border: 1px solid #D1D1D6;
    border-radius: 8px;
}

.timeline_title {
    font-size: 14px;
    font-weight: bold;
    margin-bottom: 16px;
    width: 100%;
    text-align: center;
}

/* ステップ */
.step {
    position: relative;
    padding-left: 48px;
}

.step_circle {
    position: absolute;
    left: 10px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: #D4014E;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: bold;
}

.step_title {
    font-size: 14px;
    margin-bottom: 4px;
}

.step_line {
    width: 1px;
    height: 56px;
    background: #000;
    margin-left: 22px;
    /* left:10px + 半径10px - (線の幅÷2=1px) で計算 */
    margin-top: -56px;
    /* 上の丸の直下から線を開始するよう微調整 */
    margin-bottom: 4px;
    /* 下の丸の直上で線を終了するよう微調整 */
}

.step1-ios,
.step1-android {
    height: 48px;
    margin-top: 8px;
}