/* =====================================================================
   BTOptim - Design System (Vanilla CSS)
   2カラム構成: 左固定サイドバー(条件) + 右結果一覧
   ===================================================================== */

:root {
    /* カラーパレット定義 */
    --bg-main: #0b0f19;
    --bg-card: rgba(22, 32, 53, 0.8);
    --bg-inset: #121b2d;
    --border-color: rgba(255, 255, 255, 0.08);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent-blue: #38bdf8;
    --accent-indigo: #6366f1;
    --accent-gradient: linear-gradient(135deg, #38bdf8 0%, #6366f1 100%);
    --card-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);

    /* フォント設定 */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-display: 'Outfit', var(--font-primary);
}

/* 全体初期化 */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* 1. 共通ステマ開示Disclosureバー */
.ad-disclosure-bar {
    background: linear-gradient(90deg, #1e293b, #0f172a);
    border-bottom: 1px solid var(--border-color);
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-align: center;
    padding: 6px 12px;
    letter-spacing: 0.05em;
}

/* 2. ヘッダーデザイン */
.app-header {
    background-color: rgba(11, 15, 25, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 14px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.logo-area {
    display: flex;
    flex-direction: column;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-subtext {
    font-size: 0.7rem;
    color: var(--text-secondary);
    margin-top: 2px;
    letter-spacing: 0.1em;
}

.header-updated {
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 0.03em;
}

/* 3. アプリ全体の2カラムレイアウト */
.app-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 24px;
}

.app-layout {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 24px;
    align-items: start;
}

/* 4. 左サイドバー (条件選択) */
.filter-sidebar {
    position: sticky;
    top: 84px;
    /* 開示バー+ヘッダー+余白を考慮し、初期表示でも必ず画面内に収まる高さにする */
    max-height: calc(100vh - 160px);
    overflow-y: auto;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    scrollbar-width: thin;
    scrollbar-color: #334155 transparent;
}

.filter-collapse-summary {
    display: none;
    /* PC表示ではサマリー行を隠し常時展開。モバイルで表示 */
    cursor: pointer;
    padding: 14px 20px;
    font-size: 0.9rem;
    font-weight: 600;
    list-style: none;
}

.filter-collapse-summary::-webkit-details-marker {
    display: none;
}

.filter-summary-count {
    color: var(--text-secondary);
    font-weight: 400;
    margin-left: 4px;
}

.filter-body {
    padding: 12px 14px;
}

.custom-badge {
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--accent-blue);
    background: rgba(56, 189, 248, 0.1);
    border: 1px solid rgba(56, 189, 248, 0.25);
    border-radius: 10px;
    padding: 1px 8px;
    text-transform: none;
    letter-spacing: 0;
}

.filter-item {
    margin-bottom: 10px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}

.filter-item:last-of-type {
    border-bottom: none;
    margin-bottom: 4px;
    padding-bottom: 0;
}

.filter-label {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.filter-value {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
}

/* スライダーデザイン */
.slider {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: #1e293b;
    outline: none;
    margin: 4px 0 0;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent-blue);
    cursor: pointer;
    transition: var(--transition-smooth);
    box-shadow: 0 0 8px rgba(56, 189, 248, 0.5);
}

.slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border: none;
    border-radius: 50%;
    background: var(--accent-blue);
    cursor: pointer;
}

/* ラジオタイルデザイン (サイドバー内は縦積み) */
.radio-tile-group {
    display: flex;
    gap: 8px;
}

.radio-tile-vertical {
    flex-direction: column;
    gap: 6px;
}

.radio-tile-label {
    flex: 1;
    position: relative;
    cursor: pointer;
}

.radio-tile-input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.radio-tile-text {
    display: flex;
    align-items: center;
    background-color: var(--bg-inset);
    border: 1px solid var(--border-color);
    padding: 4px 8px;
    border-radius: 8px;
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition-smooth);
    min-height: 30px;
}

.radio-tile-input:checked+.radio-tile-text {
    border-color: var(--accent-blue);
    color: var(--text-primary);
    background-color: rgba(56, 189, 248, 0.1);
}

.radio-tile-input:focus-visible+.radio-tile-text {
    outline: 2px solid var(--accent-blue);
    outline-offset: 1px;
}

/* セレクトボックスデザイン */
.select-box,
.select-box-small {
    background-color: var(--bg-inset);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 7px 10px;
    border-radius: 8px;
    font-size: 0.8rem;
    outline: none;
    cursor: pointer;
    transition: var(--transition-smooth);
    width: 100%;
}

.select-box-small {
    width: auto;
}

.select-box:focus,
.select-box-small:focus {
    border-color: var(--accent-blue);
}

/* ショップ選択チェックボックス (2列で高さを圧縮) */
.shop-checkbox-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px 6px;
}

.shop-checkbox-label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.75rem;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 2px 4px;
    border-radius: 6px;
    transition: var(--transition-smooth);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.shop-checkbox-label:hover {
    background-color: rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
}

.shop-checkbox-label input[type="checkbox"] {
    accent-color: var(--accent-blue);
    width: 14px;
    height: 14px;
    cursor: pointer;
}

.filter-actions {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 8px;
    border-top: 1px solid var(--border-color);
    padding-top: 10px;
}

/* 5. ボタンデザイン */
.btn {
    padding: 8px 14px;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 8px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.btn-primary {
    background: var(--accent-gradient);
    color: #fff;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.35);
}

.btn-secondary {
    background-color: #1e293b;
    border-color: var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background-color: #334155;
}

/* 6. 右カラム: 結果ヘッダ */
.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    flex-wrap: wrap;
    gap: 12px;
}

.results-count-area {
    display: flex;
    align-items: baseline;
    gap: 10px;
}

.section-title {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
}

.excluded-note {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.sort-control {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* 適用中の条件チップ */
.active-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 14px;
    min-height: 0;
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(56, 189, 248, 0.1);
    border: 1px solid rgba(56, 189, 248, 0.25);
    color: var(--accent-blue);
    font-size: 0.72rem;
    font-weight: 500;
    padding: 3px 10px;
    border-radius: 999px;
}

.chip-remove {
    background: none;
    border: none;
    color: var(--accent-blue);
    font-size: 0.85rem;
    line-height: 1;
    cursor: pointer;
    padding: 0 0 0 2px;
}

.chip-remove:hover {
    color: var(--text-primary);
}

/* 7. 結果カード (全幅・縦積み) */
.pc-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.pc-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 12px 16px;
    transition: var(--transition-smooth);
}

.pc-card:hover {
    border-color: rgba(56, 189, 248, 0.4);
}

.card-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
    flex-wrap: wrap;
}

.shop-badge {
    display: inline-block;
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    padding: 4px 8px;
    border-radius: 4px;
    letter-spacing: 0.05em;
    flex-shrink: 0;
}

/* ショップ別の色 (公式カラー: 変更禁止) */
.badge-dospara {
    background-color: #014DA1;
    color: #FEFEFE;
}

.badge-tsukumo {
    background-color: #00AC97;
    color: #FFFFFF;
}

.badge-pckoubou {
    background-color: #147FCD;
    color: #FFFFFF;
}

.badge-mouse {
    background-color: #FFF100;
    color: #3F3B3A;
}

.badge-frontier {
    background-color: #D40E1F;
    color: #FFFFFF;
}

.badge-sycom {
    background-color: #000000;
    color: #FFFFFF;
}

.badge-storm {
    background-color: #269640;
    color: #FFF100;
}

.pc-name {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
}

.pc-name-link {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-smooth);
}

.pc-name-link:hover {
    color: var(--accent-blue);
    text-decoration: underline;
}

/* スペック5列グリッド: CPU → GPU → メモリ → SSD → 電源
   CPU/GPUは型番が長いため広く、メモリ/SSD/電源は狭く配分する */
.spec-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.7fr) minmax(0, 1.9fr) minmax(0, 0.8fr) minmax(0, 0.8fr) minmax(0, 0.8fr);
    gap: 6px 14px;
    padding: 8px 0;
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 8px;
}

.spec-cell-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    letter-spacing: 0.05em;
    margin-bottom: 1px;
}

.spec-cell-value {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    /* 型番の末尾に重要情報があるため省略せず、収まらない場合は折り返す */
    overflow-wrap: break-word;
    line-height: 1.35;
}

.spec-cell-sub {
    font-size: 0.72rem;
    font-weight: 400;
    color: var(--text-muted);
    margin-top: 1px;
}

.upgrade-tag {
    color: var(--accent-blue);
    font-size: 0.75rem;
    font-weight: 600;
}

.standard-tag {
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 400;
}

/* カード下段: 内訳 + 価格 + CTA */
.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.price-breakdown {
    font-size: 0.78rem;
    color: var(--text-muted);
    flex: 1;
    min-width: 200px;
}

.price-and-action {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-shrink: 0;
}

.total-price-value {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--text-primary);
    white-space: nowrap;
}

.total-price-value::after {
    content: '円';
    font-size: 0.75rem;
    font-weight: 600;
    margin-left: 2px;
}

.btn-card-action {
    display: inline-block;
    text-align: center;
    padding: 9px 16px;
    font-size: 0.78rem;
    font-weight: 700;
    text-decoration: none;
    border-radius: 8px;
    transition: var(--transition-smooth);
    white-space: nowrap;
}

.btn-goto-shop {
    background-color: var(--accent-blue);
    color: #0b0f19;
}

.btn-goto-shop:hover {
    background-color: #7dd3fc;
}

/* 8. ローディング・0件表示・緩和提案 */
.loading-spinner {
    text-align: center;
    padding: 60px 0;
    color: var(--text-secondary);
}

.spinner {
    border: 4px solid rgba(255, 255, 255, 0.05);
    border-top: 4px solid var(--accent-blue);
    border-radius: 50%;
    width: 36px;
    height: 36px;
    animation: spin 1s linear infinite;
    margin: 0 auto 16px;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.no-results {
    text-align: center;
    padding: 48px 24px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    color: var(--text-secondary);
}

.relax-suggestions {
    margin-top: 12px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 16px 20px;
}

.relax-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.relax-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background-color: var(--bg-inset);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.78rem;
    padding: 7px 12px;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition-smooth);
    margin: 0 8px 8px 0;
}

.relax-btn:hover {
    border-color: var(--accent-blue);
    color: var(--text-primary);
}

.relax-btn .relax-count {
    color: var(--accent-blue);
    font-weight: 700;
}

/* 9. ショップ取得ステータス (7社小型タイル1行) */
.status-section {
    margin-top: 20px;
}

.status-title {
    font-size: 0.72rem;
    color: var(--text-muted);
    letter-spacing: 0.05em;
    margin-bottom: 6px;
}

.status-tile-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
    gap: 6px;
}

.status-tile {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1px;
    background-color: var(--bg-inset);
    border: 1px solid var(--border-color);
    padding: 6px 4px;
    border-radius: 8px;
    text-align: center;
}

.status-tile-name {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 4px;
}

.status-tile-info {
    font-size: 0.62rem;
    color: var(--text-muted);
}

.status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    display: inline-block;
    flex-shrink: 0;
}

.status-dot.success {
    background-color: #10b981;
}

.status-dot.failed {
    background-color: #f59e0b;
}

.status-dot.loading {
    background-color: #64748b;
    animation: status-pulse-gray 2s infinite;
}

@keyframes status-pulse-gray {
    0% {
        opacity: 0.4;
    }

    50% {
        opacity: 1;
    }

    100% {
        opacity: 0.4;
    }
}

/* 10. フッターデザイン */
.app-footer {
    background-color: #070a10;
    border-top: 1px solid var(--border-color);
    padding: 40px 24px;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.footer-container {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.footer-note {
    line-height: 1.6;
}

.footer-ad-notice {
    line-height: 1.5;
    border-left: 2px solid var(--accent-blue);
    padding-left: 12px;
}

.copyright {
    text-align: center;
    margin-top: 10px;
    border-top: 1px solid rgba(255, 255, 255, 0.03);
    padding-top: 20px;
}

/* 11. レスポンシブ調整 */
@media (max-width: 900px) {
    .app-layout {
        grid-template-columns: 1fr;
    }

    .filter-sidebar {
        position: static;
        max-height: none;
        overflow-y: visible;
    }

    /* モバイルでは折りたたみサマリーを表示 */
    .filter-collapse-summary {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .filter-collapse:not([open]) .filter-body {
        display: none;
    }

    .spec-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .card-footer {
        flex-direction: column;
        align-items: stretch;
    }

    .price-and-action {
        justify-content: space-between;
    }
}

    .spec-grid {
        grid-template-columns: 1fr;
    }
}

/* =====================================================================
   Step 9 - Navigation, Mobile Menu, Articles, and Static Pages
   ===================================================================== */

/* ロゴリンク用初期化 */
.logo-link {
    text-decoration: none;
    display: inline-block;
}

/* PCナビゲーション */
.pc-nav {
    display: block;
}

.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-btn {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 8px 16px;
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition-smooth);
}

.dropdown-btn:hover {
    border-color: var(--accent-blue);
    background-color: rgba(56, 189, 248, 0.05);
}

.dropdown-btn .arrow {
    font-size: 0.6rem;
    color: var(--text-secondary);
}

.dropdown-content {
    display: none;
    position: absolute;
    right: 0;
    background-color: #121b2d;
    min-width: 280px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    z-index: 1000;
    margin-top: 6px;
    overflow: hidden;
}

.dropdown-content a {
    color: var(--text-primary);
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    font-size: 0.85rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    transition: var(--transition-smooth);
}

.dropdown-content a:last-child {
    border-bottom: none;
}

.dropdown-content a:hover {
    background-color: rgba(56, 189, 248, 0.1);
    color: var(--accent-blue);
}

.dropdown:hover .dropdown-content {
    display: block;
}

/* モバイルハンバーガーメニュー (デフォルト非表示) */
.mobile-nav {
    display: none;
}

/* フッターナビゲーション */
.footer-nav {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.footer-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
    transition: var(--transition-smooth);
}

.footer-nav a:hover {
    color: var(--accent-blue);
}

/* 結果カラム上のガイドバナー */
.guide-banner-container {
    background-color: var(--bg-inset);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 16px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.guide-banner-text {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.guide-banner-links {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.guide-link-badge {
    text-decoration: none;
    font-size: 0.75rem;
    font-weight: 500;
    padding: 4px 10px;
    border-radius: 4px;
    transition: var(--transition-smooth);
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.guide-link-badge:hover {
    transform: translateY(-1px);
}

.badge-game:hover {
    border-color: #38bdf8;
    background-color: rgba(56, 189, 248, 0.1);
    color: #38bdf8;
}

.badge-ai:hover {
    border-color: #a855f7;
    background-color: rgba(168, 85, 247, 0.1);
    color: #a855f7;
}

.badge-creator:hover {
    border-color: #ec4899;
    background-color: rgba(236, 72, 153, 0.1);
    color: #ec4899;
}

.badge-power:hover {
    border-color: #eab308;
    background-color: rgba(234, 179, 8, 0.1);
    color: #eab308;
}

.badge-shop:hover {
    border-color: #10b981;
    background-color: rgba(16, 185, 129, 0.1);
    color: #10b981;
}

/* モバイル用おすすめ記事ナビゲーション（デフォルト非表示） */
.mobile-articles-nav {
    display: none;
}

/* 記事ページ・固定ページ 共通スタイル */
.article-container, .static-page-container {
    max-width: 800px;
    margin: 40px auto;
    padding: 0 24px 40px;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--card-shadow);
}

.article-header, .static-page-container h1.page-title {
    padding: 32px 0 20px;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 28px;
}

.article-category {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--accent-blue);
    background-color: rgba(56, 189, 248, 0.1);
    padding: 4px 10px;
    border-radius: 4px;
    margin-bottom: 12px;
    text-transform: uppercase;
}

.article-title, .page-title {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 12px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.article-meta {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.article-content, .page-content {
    padding-bottom: 20px;
}

.article-section, .info-section {
    margin-bottom: 32px;
}

.article-section h2, .info-section h2 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
    border-left: 4px solid var(--accent-blue);
    padding-left: 12px;
}

.article-section h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin: 20px 0 10px;
    color: var(--text-primary);
}

.article-section p, .info-section p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
}

.article-section ul, .info-section ul, .article-section ol {
    margin-left: 20px;
    margin-bottom: 16px;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.article-section li, .info-section li {
    margin-bottom: 8px;
    line-height: 1.6;
}

/* 記事内テーブルのスタイリング */
.table-wrapper {
    overflow-x: auto;
    margin: 20px 0 24px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.spec-table, .info-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    text-align: left;
}

.spec-table th, .spec-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
}

.spec-table th {
    background-color: var(--bg-inset);
    color: var(--text-primary);
    font-weight: 600;
}

.spec-table tr:last-child td {
    border-bottom: none;
}

.spec-table td strong {
    color: var(--accent-blue);
}

/* 運営情報テーブル */
.info-table th, .info-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-color);
}

.info-table th {
    width: 150px;
    background-color: var(--bg-inset);
    color: var(--text-primary);
    font-weight: 600;
}

.info-table td a {
    color: var(--accent-blue);
    text-decoration: none;
}

.info-table td a:hover {
    text-decoration: underline;
}

/* アクションボタンエリア */
.article-action {
    margin-top: 36px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.article-action .btn {
    padding: 12px 28px;
    font-size: 0.95rem;
    text-decoration: none;
    display: inline-block;
}

/* =====================================================================
   レスポンシブメディアクエリ
   ===================================================================== */
@media (max-width: 900px) {
    .pc-nav {
        display: none;
    }
    
    .guide-banner-container {
        display: none; /* モバイル時は下部おすすめ記事を優先するため非表示 */
    }
    
    /* モバイルハンバーガー表示 */
    .mobile-nav {
        display: block;
        position: relative;
    }
    
    .menu-toggle-cb {
        display: none;
    }
    
    .menu-toggle-btn {
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        width: 24px;
        height: 18px;
        cursor: pointer;
        z-index: 1002;
        position: relative;
    }
    
    .menu-toggle-btn span {
        display: block;
        width: 100%;
        height: 2px;
        background-color: var(--text-primary);
        border-radius: 2px;
        transition: transform 0.3s ease, opacity 0.3s ease;
    }
    
    /* ハンバーガーアニメーション */
    .menu-toggle-cb:checked + .menu-toggle-btn span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .menu-toggle-cb:checked + .menu-toggle-btn span:nth-child(2) {
        opacity: 0;
    }
    
    .menu-toggle-cb:checked + .menu-toggle-btn span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    /* メニューコンテンツの表示 */
    .mobile-menu-content {
        position: fixed;
        top: 0;
        right: -300px;
        width: 280px;
        height: 100vh;
        background-color: #0f172a;
        box-shadow: -5px 0 25px rgba(0,0,0,0.5);
        z-index: 1001;
        padding: 80px 24px 24px;
        display: flex;
        flex-direction: column;
        gap: 16px;
        transition: right 0.3s ease-in-out;
        border-left: 1px solid var(--border-color);
    }
    
    .menu-toggle-cb:checked ~ .mobile-menu-content {
        right: 0;
    }
    
    .mobile-menu-title {
        font-size: 0.8rem;
        color: var(--text-muted);
        text-transform: uppercase;
        letter-spacing: 0.05em;
        margin-bottom: 8px;
        border-bottom: 1px solid var(--border-color);
        padding-bottom: 8px;
    }
    
    .mobile-menu-content a {
        color: var(--text-primary);
        text-decoration: none;
        font-size: 1rem;
        padding: 10px 0;
        border-bottom: 1px solid rgba(255,255,255,0.03);
        transition: var(--transition-smooth);
    }
    
    .mobile-menu-content a:hover {
        color: var(--accent-blue);
    }
    
    /* モバイル用おすすめ記事ナビゲーション表示 */
    .mobile-articles-nav {
        display: block;
        margin: 32px 0 16px;
        padding-top: 24px;
        border-top: 1px solid var(--border-color);
    }
    
    .mobile-nav-title {
        font-size: 1rem;
        font-weight: 600;
        color: var(--text-primary);
        margin-bottom: 16px;
    }
    
    .mobile-articles-list {
        display: flex;
        flex-direction: column;
        gap: 12px;
    }
    
    .mobile-article-card {
        background-color: var(--bg-card);
        border: 1px solid var(--border-color);
        border-radius: 8px;
        padding: 14px 16px;
        text-decoration: none;
        display: flex;
        align-items: center;
        gap: 12px;
        transition: var(--transition-smooth);
    }
    
    .mobile-article-card:hover {
        border-color: var(--accent-blue);
        background-color: rgba(56, 189, 248, 0.05);
    }
    
    .mobile-article-card .card-cat {
        font-size: 0.7rem;
        font-weight: 700;
        color: var(--accent-blue);
        background-color: rgba(56, 189, 248, 0.1);
        padding: 2px 6px;
        border-radius: 4px;
        white-space: nowrap;
    }
    
    .mobile-article-card .card-tit {
        font-size: 0.85rem;
        color: var(--text-primary);
        font-weight: 500;
    }
    
    /* 記事ページのレイアウト調整 */
    .article-container, .static-page-container {
        margin: 20px auto;
        border-radius: 0;
        border-left: none;
        border-right: none;
        padding: 0 16px 20px;
    }
}