/* CSS変数定義 */
:root {
    --primary-color: #609;
    --secondary-color: #00f;
    --accent-color: #ffc;
    --success-color: #4CAF50;
    --warning-color: #ff9800;
    --danger-color: #f44336;
    --text-color: #333;
    --bg-color: #fff;
    --gray-light: #f5f5f5;
    --gray-medium: #e0e0e0;
    --container-width: 1200px;
    --content-width: calc(100% - 320px);
    --sidebar-width: 300px;
    --transition-speed: 0.3s;
}

/* リセット */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ベース */
html {
    scroll-behavior: smooth;
}

body {
    font-family: "ヒラギノ角ゴ Pro W3", "Hiragino Kaku Gothic Pro", "メイリオ", Meiryo, -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text-color);
    background: #f8f8f8;
}

/* リンク */
a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: all var(--transition-speed);
}

a:hover {
    text-decoration: underline;
    opacity: 0.8;
}

/* コンテナ */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    background: var(--bg-color);
    box-shadow: 0 0 20px rgba(0,0,0,0.05);
}

/* ヘッダー */
.header {
    background: linear-gradient(to bottom, #fff 0%, #f0f0f0 100%);
    border-bottom: 3px solid var(--primary-color);
    padding: 15px 20px;
    position: relative;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

.headerlogo img {
    display: block;
    max-width: 100%;
    height: auto;
}

.header-right {
    flex: 1;
    max-width: 400px;
}

/* 検索フォーム */
#cse-search-box div {
    display: flex;
    gap: 0;
}

#cse-search-box input[type="text"] {
    flex: 1;
    padding: 8px 12px;
    border: 2px solid #ddd;
    border-radius: 4px 0 0 4px;
    font-size: 14px;
    transition: border-color var(--transition-speed);
}

#cse-search-box input[type="text"]:focus {
    outline: none;
    border-color: var(--primary-color);
}

#cse-search-box input[type="submit"] {
    padding: 8px 20px;
    background: var(--success-color);
    color: white;
    border: none;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
    font-weight: bold;
    transition: background var(--transition-speed);
}

#cse-search-box input[type="submit"]:hover {
    background: #45a049;
}

/* ハンバーガーメニュー */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 10px;
    background: none;
    border: none;
    z-index: 1001;
    position: fixed;
    top: 15px;
    right: 15px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    margin: 3px 0;
    transition: 0.3s;
    display: block;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0,0,0,0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* パンくずリスト */
.breadcrumb {
    background: var(--gray-light);
    padding: 10px 20px;
    border-bottom: 1px solid var(--gray-medium);
}

.breadcrumb ol {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    font-size: 14px;
}

.breadcrumb li::after {
    content: ">";
    margin: 0 8px;
    color: #999;
}

.breadcrumb li:last-child::after {
    content: "";
}

.breadcrumb a {
    color: var(--primary-color);
}

/* 広告エリア */
.contentup, .contentdown {
    padding: 20px;
    text-align: center;
    background: #fafafa;
    border-top: 1px solid var(--gray-medium);
    border-bottom: 1px solid var(--gray-medium);
}


/* メインレイアウト */
.main-layout {
    display: flex;
    gap: 20px;
    padding: 20px;
    min-height: 500px;
}

/* メインコンテンツ */
.content {
    flex: 1;
    width: var(--content-width);
    background: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

/* 見出し */
h1 {
    font-size: 28px;
    color: var(--primary-color);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 3px solid var(--primary-color);
}

h2 {
    font-size: 22px;
    color: #444;
    margin: 30px 0 15px;
    padding: 8px 0 8px 15px;
    border-left: 4px solid var(--primary-color);
    background: linear-gradient(to right, rgba(102,0,153,0.05) 0%, transparent 100%);
}

h3 {
    font-size: 18px;
    color: #555;
    margin: 25px 0 10px;
    padding-left: 10px;
    border-left: 3px solid var(--accent-color);
}

h4 {
    font-size: 16px;
    color: #666;
    margin: 20px 0 10px;
    font-weight: bold;
}

/* 段落 */
p {
    margin-bottom: 15px;
    line-height: 1.8;
}

/* リスト */
ul, ol {
    margin: 15px 0;
    padding-left: 30px;
}

li {
    margin-bottom: 8px;
}

/* ボックス装飾 */
.summary-box {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 30px;
    box-shadow: 0 4px 15px rgba(102,0,153,0.2);
}

.summary-box p {
    margin: 0;
    font-size: 16px;
    line-height: 1.6;
}

.info-box {
    background: var(--gray-light);
    border-left: 4px solid var(--primary-color);
    padding: 15px;
    margin: 20px 0;
    border-radius: 4px;
}

.point-box {
    background: #fff9e6;
    border: 2px solid #ffd700;
    padding: 15px;
    margin: 20px 0;
    border-radius: 8px;
}

.point-box h4 {
    color: #ff6b00;
    margin-top: 0;
}

/* テーブル */
.table-wrapper {
    overflow-x: auto;
    margin: 20px 0;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
}

.data-table caption {
    font-weight: bold;
    margin-bottom: 10px;
    text-align: left;
}

.data-table th {
    background: var(--primary-color);
    color: white;
    padding: 12px;
    text-align: left;
    font-weight: normal;
}

.data-table td {
    padding: 12px;
    border-bottom: 1px solid var(--gray-medium);
}

.data-table tbody tr:hover {
    background: var(--gray-light);
}

/* 関連リンク */
.related-links {
    background: #f9f9f9;
    padding: 20px;
    border-radius: 8px;
    margin-top: 30px;
}

.related-links h3 {
    margin-top: 0;
}

.related-links ul {
    list-style: none;
    padding: 0;
}

.related-links li {
    padding: 8px 0;
    border-bottom: 1px dotted #ddd;
}

.related-links li:last-child {
    border-bottom: none;
}

.related-links a {
    display: block;
    padding-left: 20px;
    position: relative;
}

.related-links a::before {
    content: "▶";
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

/* サイドバー */
.sidebar1 {
    width: var(--sidebar-width);
    flex-shrink: 0;
}

/* メニュー */
.menu1 {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 10px 15px;
    font-weight: bold;
    font-size: 16px;
    border-radius: 4px 4px 0 0;
    position: relative;
}

.menu1::after {
    content: "▲";
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 12px;
    color: #666;
}

.menu_box {
    background: white;
    border: 1px solid var(--gray-medium);
    border-top: none;
    margin-bottom: 20px;
    border-radius: 0 0 4px 4px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

/* サイドバーナビゲーション - 階層別グラデーション */
.subs {
    list-style: none;
    padding: 0;
}

.subs li {
    margin: 0;
}

/* 第1階層 - 最も薄い紫 */
.subs > li > a {
    display: block;
    padding: 10px 15px;
    background: linear-gradient(135deg, #f3f4fb 0%, #e8eaf6 100%);
    color: var(--text-color);
    border-bottom: 1px solid #e0e0e0;
    font-weight: 500;
    transition: all var(--transition-speed);
    text-decoration: none;
}

.subs > li > a:hover {
    background: linear-gradient(135deg, #e8eaf6 0%, #d1d9ff 100%);
    color: var(--primary-color);
    padding-left: 20px;
}

/* 第2階層 - 中間の紫 */
.subs ul {
    list-style: none;
    padding: 0;
    background: #f0f2ff;
}

.subs ul a {
    display: block;
    padding: 10px 15px 10px 30px;
    background: linear-gradient(135deg, #e8eaf6 0%, #d1d9ff 100%);
    color: #555;
    font-size: 16px;
    border-bottom: 1px solid #d0d0d0;
    transition: all var(--transition-speed);
    text-decoration: none;
}

.subs ul a:hover {
    background: linear-gradient(135deg, #d1d9ff 0%, #c5cae9 100%);
    color: var(--primary-color);
    padding-left: 35px;
}

/* 第3階層 - 最も濃い紫 */
.subs ul ul {
    background: #e0e3f0;
}

.subs ul ul a {
    padding: 8px 15px 8px 45px;
    background: linear-gradient(135deg, #ffffff 0%, #ffffff 100%);
    color: #666;
    font-size: 15px;
    border-bottom: 1px solid #c0c0c0;
}

.subs ul ul a:hover {
    background: linear-gradient(135deg, #c5cae9 0%, #b39ddb 100%);
    color: var(--primary-color);
    padding-left: 50px;
}

/* フッター */
.footer {
    background: linear-gradient(to bottom, #f5f5f5 0%, #e0e0e0 100%);
    color: #333;
    padding: 30px 20px 20px;
    margin-top: 40px;
    border-top: 3px solid var(--primary-color);
}

.footer-nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
    padding: 0 0 20px;
    border-bottom: 1px solid #ccc;
}

.footer-nav a {
    color: var(--primary-color);
    font-weight: 500;
}

.footer-nav a:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

.footer-info {
    text-align: center;
    padding: 20px 0;
    font-size: 14px;
    line-height: 1.6;
    color: #666;
}

.footer-info p {
    margin: 5px 0;
}

.copyright {
    text-align: center;
    padding: 15px;
    background: #ddd;
    font-size: 12px;
    color: #666;
    border-top: 1px solid #bbb;
}

.copyright p {
    margin: 3px 0;
}

.copyright a {
    color: var(--primary-color);
}

/* ページトップボタン */
.pagetop {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-speed);
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
    z-index: 1000;
}

.pagetop.show {
    opacity: 0.8;
    pointer-events: auto;
}

.pagetop:hover {
    opacity: 1;
    transform: scale(1.1);
}

/* レスポンシブ - タブレット */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .sidebar1 {
        position: fixed;
        top: 0;
        left: -100%;
        width: 80%;
        height: 100vh;
        background: white;
        transition: left 0.3s ease;
        overflow-y: auto;
        z-index: 1000;
        padding-top: 60px;
        box-shadow: 2px 0 5px rgba(0,0,0,0.1);
    }
    
    .sidebar1.active {
        left: 0;
    }

    .container {
        width: 100%;
    }

    .main-layout {
        flex-direction: column;
    }

    .content {
        width: 100%;
        padding: 20px;
    }

    h1 {
        font-size: 24px;
    }

    h2 {
        font-size: 20px;
    }

    .header-content {
        flex-direction: column;
        align-items: center;
    }

    .header-right {
        width: 100%;
        max-width: none;
    }
}

/* レスポンシブ - スマートフォン */
@media (max-width: 480px) {
    body {
        font-size: 14px;
    }

    .sidebar1 {
        width: 100%;
        padding: 0 8px;
        padding-top: 60px;
    }

    .content {
        padding: 15px;
    }

    h1 {
        font-size: 20px;
    }

    h2 {
        font-size: 18px;
    }

    h3 {
        font-size: 16px;
    }

    .breadcrumb {
        font-size: 12px;
        padding: 8px 15px;
    }

    .footer-nav ul {
        flex-direction: column;
        gap: 10px;
    }

    .data-table {
        font-size: 12px;
    }

    .data-table th,
    .data-table td {
        padding: 8px;
    }

    .pagetop {
        bottom: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
    }

    .menu1 {
        font-size: 14px;
        padding: 12px;
        border-radius: 0;
    }

    .subs > li > a {
        padding: 12px 15px;
        font-size: 14px;
        border-bottom: 1px solid #e0e0e0;
    }

    .subs ul a {
        padding: 12px 15px 12px 25px;
        font-size: 14px;
    }

    .subs ul ul a {
        padding: 10px 15px 10px 35px;
        font-size: 13px;
    }
}
        /* FAQ専用CSS */
        .faq-item {
            margin-bottom: 15px;
            border: 1px solid #ddd;
            border-radius: 8px;
            overflow: hidden;
        }

        .faq-question {
            background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
            padding: 15px 20px;
            margin: 0;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 16px;
            font-weight: 600;
            color: #333;
            border-bottom: 1px solid #ddd;
            transition: background 0.3s ease;
        }

        .faq-question:hover {
            background: linear-gradient(135deg, #e9ecef 0%, #dee2e6 100%);
        }

        .faq-toggle {
            font-size: 20px;
            font-weight: bold;
            color: #609;
            min-width: 20px;
            text-align: center;
        }

        .faq-answer {
            display: none;
            padding: 20px;
            background: white;
            line-height: 1.8;
        }

        .faq-item.active .faq-question {
            background: linear-gradient(135deg, #609 0%, #5a2d8a 100%);
            color: white;
        }

        .faq-item.active .faq-toggle {
            color: white;
        }

        /* テーブルラッパーのoverflow-x設定 */
        .table-wrapper {
            overflow-x: auto !important;
            margin: 20px 0;
            border-radius: 8px;
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        }

        /* モバイル対応 */
        @media (max-width: 768px) {
            .faq-question {
                padding: 12px 15px;
                font-size: 14px;
            }

            .faq-answer {
                padding: 15px;
            }

            .table-wrapper {
                margin: 15px -15px;
                border-radius: 0;
            }
        }