body {
    font-family: "Noto Sans JP",
    "Helvetica Neue",
    Arial,
    "Hiragino Kaku Gothic ProN",
    "Hiragino Sans",
    Meiryo,
    sans-serif;
}

main a,
main a:hover,
main a:visited,
main a:active {
    color: #333;
    text-decoration: underline;
}

h2 {
    font-size: 1.4rem;
    font-weight: 700;
    padding-left: 18px;
    margin: 62px 0 20px;
    position: relative
}

h2:before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 1em;
    background: #D7302D;
    position: relative;
    top: -.1em;
    left: -18px;
    vertical-align: middle
}

.underline {
    text-decoration: underline;
}

p {
    margin: 32px 0 0 0;
}

.mt-24px {
    margin: 24px 0 0 0;
}

.mb-24px {
    margin: 0 0 24px 0;
}

/**********************
  ヘッダー
 *********************/

.page-header {
    margin-bottom: 8px;
}

.page-header .date {
    font-size: 0.85em;
    color: #999;
    margin-bottom: 8px;
}

.page-header .title {
    font-weight: 700;
    font-size: 1.5em;
    margin: 0;
}

.page-footer {
    margin-top: 64px;
}

.header-separator {
    border: none;
    border-bottom: 1px solid #ccc;
    margin: 10px 0 30px 0;
}

.headline {
    margin-bottom: 2em;
}

/**********************
  ボディ
 *********************/

.page-body {
    line-height: 1.7;
}

/**********************
  画像
 *********************/

.main-image {
    text-align: center;
    margin: 36px auto 24px auto;
}

.main-image img {
    width: 80%;
}

.sub-image-land {
    width: 100%;
    margin: 48px auto 24px auto;
}

.sub-images {
    width: 100%;
    display: grid;
    gap: 20px;
    grid-template-columns: repeat(4, 1fr);
    text-align: center;
    margin: 24px auto 24px auto;
}

.sub-images img {
    width: 100%;
    height: auto;
    display: block;
}

/**********************
  アプリ概要
 *********************/

.app-info-container {
    display: flex;
    align-items: flex-start;
    gap: 40px;
    flex-wrap: wrap;
}

.app-icon {
    padding-top: 10px;
}

.app-icon img {
    width: 100px;
    height: auto;
}

.app-info-container table {
    border-collapse: collapse;
    border: none;
}

.app-info-container table th {
    border-bottom: 1px solid #ddd;
    border-right: none;
    border-left: none;
    border-top: none;
    width: 10em;
    padding: .6em 0 1em;
}

.app-info-container table td {
    border-bottom: 1px solid #ddd;
    border-right: none;
    border-left: none;
    border-top: none;
    padding: .6em 0 .6em .6em;
}

.dl-banner {
    height: 50px;
    width: auto;
}

.license {
    font-size: 0.8em;
    margin: 3em 0 .4em;
}

/**********************
  会社概要
 *********************/

.about table th {
    padding: 0 20px 0 0;
}

.about h4 {
    text-decoration-line: underline;
}

.about table th {
    font-weight: 400;
}

/**********************
  ボタン
 *********************/

.btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 220px;

    font-size: 1.3rem;
    text-decoration: none !important;
    padding: 8px 0;
    border: 2px solid #333;
    background-color: #f8f8f8;
}

.btn-outline span {
    padding-right: 5px;
}

/**********************
  レスポンシブ対応
 *********************/

@media (max-width: 768px) {
    .main-image img {
        width: 100%;
    }

    .sub-images {
        width: 80%;
        display: grid;
        gap: 20px;
        grid-template-columns: 1fr;
        text-align: center;
        margin: 0 auto 36px auto;
    }

    .app-info-container {
        flex-direction: column; /* 横並び → 縦並び */
        align-items: center;
    }

    .app-icon img {
        width: 192px;
    }

    table {
        max-width: 100%;
    }
}