body {
    font-family: Arial, sans-serif;
    text-align: center;
    background-color: #f4f4f4;
    margin: 0;
    padding: 0;
    min-height: 100vh;
}

.container {
    max-width: 600px;
    background: white;
    padding: 20px;
    margin: auto;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.card {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 8px #0001;
    max-width: 480px;
    margin: 40px auto;
    padding: 32px 24px;
    text-align: center;
    box-sizing: border-box;
    position: relative;
    min-height: auto;
    display: flex;
    flex-direction: column;
}

.content {
    margin-bottom: 24px;
}

.card h2 {
    font-size: 1.4em;
    font-weight: bold;
    margin-bottom: 8px;
    text-align: center;
}

.card p {
    margin-bottom: 24px;
    text-align: center;
}

/* 結果画面の画像サイズ設定 */
.card img {
    max-width: 400px;
    width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: 24px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

/* 共通スタイル */
.main-title {
    text-align: center;
    font-size: 2em;
    font-weight: bold;
    margin-top: 32px;
}

.button-container {
    display: block;
    margin-top: 20px;
    padding: 0 20px;
}

.action-btn {
    display: block;
    width: 100%;
    background: #1abc4c;
    color: #fff;
    font-weight: bold;
    border: none;
    border-radius: 6px;
    padding: 14px 0;
    font-size: 1em;
    cursor: pointer;
    text-decoration: none;
    box-sizing: border-box;
    text-align: center;
    margin-bottom: 16px;
}

.fb-btn {
    display: block;
    width: 100%;
    background: #1877f2;
    color: #fff;
    font-weight: bold;
    border: none;
    border-radius: 6px;
    padding: 14px 0;
    font-size: 1em;
    text-align: center;
    text-decoration: none;
    box-sizing: border-box;
}

/* スマートフォン向けスタイル */
@media screen and (max-width: 480px) {
    .card {
        margin: 20px auto;
        padding: 24px 16px;
    }
    
    .main-title {
        font-size: 1.6em;
        margin-top: 24px;
    }
    
    .card h2 {
        font-size: 1.2em;
    }
    
    .card p {
        font-size: 0.9em;
    }
    
    .action-btn, .fb-btn {
        padding: 12px 0;
        font-size: 0.95em;
    }

    .card img {
        max-width: 300px;
        margin-bottom: 24px;
    }

    .button-container {
        gap: 12px;
    }
}