/* ==========================================
   全体のリセット＆基本設定
   ================================---------- */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
body {
    font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", Meiryo, sans-serif;
    background-color: #f4f7f9;
    color: #333333;
    line-height: 1.6;
}
a {
    color: #0066cc;
    text-decoration: none;
}
a:hover {
    text-decoration: underline;
}

/* ==========================================
   ヘッダー
   ================================---------- */
.site-header {
    background-color: #ffffff;
    border-bottom: 3px solid #0066cc;
    padding: 20px 0;
}
.header-inner {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}
.site-title a {
    font-size: 24px;
    font-weight: bold;
    color: #104862;
}
.site-description {
    font-size: 13px;
    color: #667788;
    margin-top: 4px;
}
.contact-info {
    font-size: 12px;
    color: #555555;
    margin-top: 6px;
}
.contact-info .tel {
    font-weight: bold;
    color: #0066cc;
    margin-right: 10px;
}
.header-image img {
    max-width: 120px;
    border-radius: 6px;
}

/* ==========================================
   グローバルナビゲーション（メニュー＆開閉機能）
   ================================---------- */
.site-navigation {
    background-color: #104862;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: relative;
}
.nav-container {
    max-width: 1000px;
    margin: 0 auto;
}
.menu-toggle-input {
    display: none; /* チェックボックス自体は隠します */
}
.menu-toggle-btn {
    display: none; /* パソコン画面ではボタンを非表示 */
    background-color: #0066cc;
    color: #ffffff;
    text-align: center;
    padding: 12px;
    font-weight: bold;
    font-size: 15px;
    cursor: pointer;
}
.menu-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}
.menu-list li {
    margin: 0;
}
.menu-list a {
    display: block;
    color: #ffffff;
    padding: 12px 16px;
    font-size: 14px;
    font-weight: bold;
    transition: background 0.2s;
}
.menu-list a:hover, .menu-list a.active {
    background-color: #0066cc;
    text-decoration: none;
}

/* ==========================================
   メインコンテンツエリア（1カラム）
   ================================---------- */
.site-main {
    padding: 40px 0;
}
.container {
    max-width: 900px;
    margin: 0 auto;
    background: #ffffff;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(16, 72, 98, 0.05);
}
.main-banner {
    margin-bottom: 30px;
    text-align: center;
}
.main-banner img {
    max-width: 100%;
    height: auto;
    border-radius: 6px;
}
.content-section {
    margin-bottom: 40px;
}
.section-title {
    font-size: 22px;
    color: #104862;
    border-left: 5px solid #0066cc;
    padding-left: 12px;
    margin-bottom: 20px;
}
.section-title-sub {
    font-size: 18px;
    color: #104862;
    border-bottom: 2px solid #e6f0fa;
    padding-bottom: 6px;
    margin-bottom: 15px;
}
.lead-text {
    font-size: 16px;
    color: #444444;
    margin-bottom: 20px;
    line-height: 1.8;
}
.info-box {
    background-color: #f8fbfe;
    border: 1px solid #d0e1f5;
    border-radius: 8px;
    padding: 20px;
}
.info-box h3 {
    font-size: 16px;
    color: #104862;
    margin-bottom: 10px;
}
.feature-list {
    list-style: disc;
    padding-left: 20px;
}
.feature-list li {
    margin-bottom: 8px;
    font-size: 14px;
    color: #556677;
}

/* ニュース・告知リスト */
.news-list dl {
    display: flex;
    flex-wrap: wrap;
    font-size: 14px;
    margin-bottom: 10px;
}
.news-list dt {
    width: 110px;
    color: #667788;
    font-weight: bold;
    padding: 6px 0;
}
.news-list dd {
    width: calc(100% - 110px);
    padding: 6px 0;
}
.link-bullet-list {
    list-style: disc;
    padding-left: 20px;
    font-size: 14px;
}
.link-bullet-list li {
    margin-bottom: 8px;
}
.more-link {
    text-align: right;
    margin-top: 10px;
    font-size: 13px;
    font-weight: bold;
}

/* ==========================================
   フッター
   ================================---------- */
.site-footer {
    background-color: #104862;
    color: #ffffff;
    padding: 30px 0;
    text-align: center;
}
.footer-inner {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}
.footer-menu {
    list-style: none;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 15px;
}
.footer-menu li {
    margin: 0 15px;
}
.footer-menu a {
    color: #aaccff;
    font-size: 13px;
}
.copyright {
    font-size: 12px;
    color: #8899aa;
}

/* ==========================================
   スマホ対応（画面が狭いとき：768px以下）
   ================================---------- */
@media (max-width: 768px) {
    .container {
        padding: 20px;
    }
    .header-inner {
        flex-direction: column;
        text-align: center;
    }
    .header-image {
        margin-top: 15px;
    }
    
    /* スマホのときだけメニューボタンを表示する */
    .menu-toggle-btn {
        display: block;
    }
    /* スマホのときは普段はメニューを隠しておく */
    .menu-list {
        display: none;
        flex-direction: column;
        text-align: center;
    }
    /* 「メニューを開閉」ボタンにチェックが入ったら、メニューをパッと表示する */
    .menu-toggle-input:checked ~ .menu-list {
        display: flex;
    }

    .news-list dt {
        width: 100%;
    }
    .news-list dd {
        width: 100%;
        margin-bottom: 10px;
    }
}