/*
 * アイパネル コンテンツページ群(privacy / tradelaw / about / faq)共通スタイル
 *
 * Phase 10b / handoff 003 で実装。
 * 4 ページの共通レイアウト + privacy/about の見出し階層 + tradelaw の dt/dd 表 + faq のアコーディオン。
 *
 * カラーは Phase 10a で `ipanel-top.css` の `:root` に定義した CSS 変数を再利用(SSOT)。
 * 本ファイルでは `:root` を再定義しない(Phase 10a で確立した規約)。
 * `ipanel-top.css` と本ファイルは独立して link されるため、TOP 以外のページでも変数が解決される必要があるが
 * 各コンテンツページの Twig が `ipanel-top.css` を link しない場合は本ファイル先頭で同じ :root を持つ必要があった。
 * → 解決策: 本ファイル先頭にも同じ :root 定義を置く(値は ipanel-top.css と一致)。
 *   変数の変更時は両方を同時に編集する(Phase 10c で共通 CSS に統合予定)。
 */

:root {
    --ipanel-primary: #1a1a1a;
    --ipanel-primary-dark: #000000;
    --ipanel-accent: #e63312;
    --ipanel-accent-dark: #c02a0e;
    --ipanel-bg-soft: #F5F2EA;
    --ipanel-text: #1A1A1A;
    --ipanel-text-muted: #5A5A5A;
    --ipanel-border: #E4DDC9;
    --ipanel-white: #FFFFFF;
    --ipanel-shadow-sm: 0 1px 3px rgba(20, 37, 68, 0.08);
    --ipanel-radius: 8px;
}

/* ============================================================================
 * 共通: コンテンツページのレイアウト
 * ========================================================================== */

.ipanel-content {
    color: var(--ipanel-text);
    background-color: var(--ipanel-white);
}

.ipanel-content .ec-pageHeader {
    text-align: center;
    padding-block: clamp(32px, 5vw, 56px);
}

.ipanel-content .ec-pageHeader h1 {
    font-size: clamp(24px, 3.6vw, 36px);
    color: var(--ipanel-primary);
    margin: 0;
    letter-spacing: 0.02em;
    font-weight: 700;
}

.ipanel-content__inner {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 16px clamp(48px, 8vw, 96px);
}

.ipanel-content__lead {
    font-size: clamp(15px, 1.6vw, 17px);
    line-height: 1.9;
    color: var(--ipanel-text);
    margin: 0 0 clamp(24px, 4vw, 40px);
    padding: clamp(16px, 3vw, 24px);
    background-color: var(--ipanel-bg-soft);
    border-left: 4px solid var(--ipanel-accent);
    border-radius: var(--ipanel-radius);
}

.ipanel-content__section {
    margin-bottom: clamp(28px, 5vw, 48px);
}

.ipanel-content__section--contact {
    margin-top: clamp(32px, 6vw, 56px);
    padding-top: clamp(24px, 4vw, 36px);
    border-top: 2px solid var(--ipanel-border);
}

.ipanel-content__sectionTitle {
    font-size: clamp(18px, 2vw, 22px);
    color: var(--ipanel-primary);
    margin: 0 0 clamp(12px, 2vw, 20px);
    padding-bottom: 8px;
    border-bottom: 2px solid var(--ipanel-accent);
    font-weight: 700;
    letter-spacing: 0.02em;
}

.ipanel-content__section p {
    font-size: clamp(14px, 1.4vw, 16px);
    line-height: 1.9;
    margin: 0 0 12px;
    color: var(--ipanel-text);
}

.ipanel-content__list {
    list-style: disc;
    padding-left: 1.4em;
    margin: 0 0 12px;
}

.ipanel-content__list li {
    font-size: clamp(14px, 1.4vw, 16px);
    line-height: 1.9;
    color: var(--ipanel-text);
    margin-bottom: 6px;
}

.ipanel-content__meta {
    font-size: 13px;
    color: var(--ipanel-text-muted);
    text-align: right;
    margin-top: clamp(24px, 4vw, 40px);
}

/* ============================================================================
 * dl/dt/dd の定義リスト(tradelaw + about + privacy のお問い合わせ窓口で利用)
 * ========================================================================== */

.ipanel-content__defs {
    display: grid;
    grid-template-columns: minmax(120px, 1fr) 3fr;
    gap: 8px 16px;
    margin: 0;
    border-top: 1px solid var(--ipanel-border);
    padding-top: 12px;
}

.ipanel-content__defs dt {
    font-weight: 700;
    color: var(--ipanel-primary);
    padding: 8px 0;
    font-size: clamp(14px, 1.4vw, 15px);
    border-bottom: 1px solid var(--ipanel-border);
}

.ipanel-content__defs dd {
    margin: 0;
    padding: 8px 0;
    font-size: clamp(14px, 1.4vw, 15px);
    color: var(--ipanel-text);
    border-bottom: 1px solid var(--ipanel-border);
    line-height: 1.7;
    /* Phase 10b needs-fix F-3: モバイル時に所在地(__company_address__ 等の長文)が
       画面右端をはみ出す問題を強制折り返しで解消。grid/flex 子要素の overflow 防止に
       min-width: 0 も明示する。 */
    word-break: break-all;
    overflow-wrap: anywhere;
    min-width: 0;
}

.ipanel-content__defs--tradelaw dt {
    color: var(--ipanel-primary-dark);
}

/* ============================================================================
 * about 沿革タイムライン
 * ========================================================================== */

.ipanel-content__timeline {
    list-style: none;
    padding: 0;
    margin: 0;
    border-left: 3px solid var(--ipanel-accent);
    padding-left: clamp(16px, 3vw, 24px);
}

.ipanel-content__timeline li {
    margin: 0 0 clamp(12px, 2vw, 20px);
    font-size: clamp(14px, 1.4vw, 16px);
    line-height: 1.7;
    position: relative;
    /* Phase 10b needs-fix F-3: 沿革タイムラインの __history_event_*__ が長文でも
       右端はみ出ししないよう強制折り返し許可 */
    overflow-wrap: anywhere;
}

.ipanel-content__timeline li::before {
    content: "";
    position: absolute;
    left: calc(-1 * clamp(16px, 3vw, 24px) - 9px);
    top: 6px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background-color: var(--ipanel-accent);
    border: 3px solid var(--ipanel-white);
    box-shadow: 0 0 0 1px var(--ipanel-accent);
}

.ipanel-content__timelineYear {
    display: inline-block;
    font-weight: 700;
    color: var(--ipanel-primary);
    margin-right: 12px;
    min-width: 80px;
}

/* ============================================================================
 * FAQ アコーディオン(<details><summary>)
 * ========================================================================== */

.ipanel-faq {
    border: 1px solid var(--ipanel-border);
    border-radius: var(--ipanel-radius);
    margin-bottom: 10px;
    background-color: var(--ipanel-white);
    overflow: hidden;
    transition: box-shadow 0.18s ease;
}

.ipanel-faq[open] {
    box-shadow: var(--ipanel-shadow-sm);
    border-color: var(--ipanel-accent);
}

.ipanel-faq__q {
    list-style: none;
    cursor: pointer;
    padding: clamp(14px, 2vw, 18px) clamp(16px, 3vw, 24px);
    font-weight: 600;
    color: var(--ipanel-primary);
    font-size: clamp(15px, 1.6vw, 17px);
    background-color: var(--ipanel-bg-soft);
    position: relative;
    padding-right: 48px;
    line-height: 1.5;
}

.ipanel-faq__q::-webkit-details-marker {
    display: none;
}

.ipanel-faq__q::after {
    content: "+";
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 24px;
    color: var(--ipanel-accent-dark);
    font-weight: 400;
    line-height: 1;
    transition: transform 0.18s ease;
}

.ipanel-faq[open] .ipanel-faq__q::after {
    content: "−";
    transform: translateY(-50%) rotate(0deg);
}

.ipanel-faq__q:hover {
    background-color: var(--ipanel-border);
}

.ipanel-faq__a {
    padding: clamp(14px, 2vw, 18px) clamp(16px, 3vw, 24px);
    font-size: clamp(14px, 1.4vw, 15px);
    line-height: 1.9;
    color: var(--ipanel-text);
    /* Phase 10b needs-fix F-4: モバイル時に回答内の電話番号(__company_phone__ 等)が
       右端はみ出しする問題を強制折り返しで解消。電話番号や URL のような連続英数字でも
       overflow-wrap: anywhere で折り返し許可。 */
    overflow-wrap: anywhere;
    min-width: 0;
}

.ipanel-faq__a a {
    color: var(--ipanel-primary);
    text-decoration: underline;
}

.ipanel-faq__a a:hover {
    color: var(--ipanel-accent-dark);
}

/* ============================================================================
 * 暫定フッターリンク(Phase 10b 注入、Phase 10c で正式置換予定)
 * ========================================================================== */

.ipanel-tempFooterLinks {
    background-color: var(--ipanel-bg-soft);
    padding: clamp(20px, 3vw, 28px) 16px;
    border-top: 1px solid var(--ipanel-border);
    text-align: center;
}

.ipanel-tempFooterLinks__list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
    gap: clamp(16px, 3vw, 32px);
    flex-wrap: wrap;
}

.ipanel-tempFooterLinks__list a {
    color: var(--ipanel-primary);
    text-decoration: none;
    font-size: clamp(13px, 1.3vw, 14px);
    font-weight: 600;
    padding: 4px 0;
    border-bottom: 1px solid transparent;
    transition: border-color 0.15s ease;
}

.ipanel-tempFooterLinks__list a:hover {
    border-color: var(--ipanel-accent-dark);
    color: var(--ipanel-accent-dark);
    text-decoration: none;
}

/* ============================================================================
 * Responsive(モバイル微調整)
 * ========================================================================== */

@media (max-width: 600px) {
    .ipanel-content__defs {
        grid-template-columns: 1fr;
        gap: 4px;
    }

    .ipanel-content__defs dt {
        padding-bottom: 0;
        border-bottom: none;
    }

    .ipanel-content__defs dd {
        padding-top: 0;
        padding-left: 16px;
    }

    .ipanel-content__timelineYear {
        display: block;
        margin-bottom: 4px;
    }
}

/* =====================================================================
 * handoff 025: コンテンツ各ページをモック(ipanel-combined.html)へ
 *   - アイパネルの想い / アイリンクについて / 施工例 / 設置方法 / よくある質問
 *   - ヘッダー/フッターは共通(default_frame 注入)。本 CSS は各ページ本文専用。
 *   - アクセントはモック赤(#e63312)。ヘッダー(紺/金)との統一は要確認(TOP と同様)。
 * ===================================================================== */
:root {
    --ipanel-cp-accent: #e63312;
    --ipanel-cp-accent-dark: #c42a0e;
    --ipanel-cp-navy: #2c3e60;
    --ipanel-cp-gold: #e8a000;
    --ipanel-cp-serif: 'Noto Serif JP', 'Yu Mincho', 'YuMincho', 'Hiragino Mincho ProN', serif;
}
.ipanel-cp { color: #333; }
.ipanel-cp__wrap { max-width: 960px; margin: 0 auto; padding: 48px 32px; }
.ipanel-cp__wrap--narrow { max-width: 860px; }
.ipanel-cp__wrap--faq { max-width: 780px; }
.ipanel-cp__eyebrow {
    font-size: 13px; letter-spacing: 0.15em; color: var(--ipanel-cp-accent);
    font-weight: 500; margin: 0 0 12px;
}
.ipanel-cp__title {
    font-family: var(--ipanel-cp-serif); font-weight: 600; color: #1a1a1a;
    font-size: clamp(22px, 3vw, 32px); line-height: 1.6; margin: 0;
}
.ipanel-cp__title--bar {
    display: inline-block; padding-bottom: 16px; border-bottom: 3px solid var(--ipanel-cp-accent);
}
.ipanel-cp__desc { font-size: 15px; color: #555; line-height: 1.9; margin: 16px 0 0; }
.ipanel-cp__accent { color: var(--ipanel-cp-accent); }

/* CTA(オーダーフォームへ) */
.ipanel-cp__ctaRow { text-align: center; padding: 40px 20px 80px; }
.ipanel-cpOrderBtn {
    display: inline-block; background: var(--ipanel-cp-accent); color: #fff;
    padding: 16px 48px; font-size: 1rem; font-weight: 600; letter-spacing: 0.1em;
    border-radius: 2px; text-decoration: none; transition: background .2s, transform .15s;
}
.ipanel-cpOrderBtn:hover, .ipanel-cpOrderBtn:focus {
    background: var(--ipanel-cp-accent-dark); color: #fff; transform: translateY(-1px); text-decoration: none;
}

/* 想い: hero / logo / 3 features */
.ipanel-cpAbout__hero { text-align: center; padding: 72px 20px 56px; background: linear-gradient(180deg, #fffdf9 0%, #fff 100%); }
.ipanel-cpAbout__h1 { font-family: var(--ipanel-cp-serif); font-weight: 600; color: #1a1a1a; font-size: clamp(22px, 4vw, 38px); line-height: 1.6; margin: 0 0 32px; }
.ipanel-cpAbout__body { max-width: 640px; margin: 0 auto; font-size: clamp(14px, 2vw, 17px); line-height: 2.2; color: #444; }
.ipanel-cpAbout__body p { margin: 0 0 6px; }
.ipanel-cpAbout__body .muted { color: #888; }
.ipanel-cpAbout__body .serif { font-family: var(--ipanel-cp-serif); color: #1a1a1a; font-size: clamp(16px, 2.5vw, 20px); margin-top: 20px; }
.ipanel-cpAbout__body .serif-sub { font-family: var(--ipanel-cp-serif); color: #555; font-size: clamp(14px, 2vw, 17px); }
.ipanel-cpLogoSec { text-align: center; padding: 20px 20px 56px; }
.ipanel-cpLogoSec__label { font-size: 12px; letter-spacing: 0.2em; color: #999; margin: 0 0 14px; }
.ipanel-cpLogoSec__img { height: 52px; width: auto; }
.ipanel-cpFeatures { background: #f7f5f2; padding: 60px 20px; }
.ipanel-cpFeatures__grid { max-width: 960px; margin: 0 auto; display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 32px; }
.ipanel-cpFeature { text-align: center; }
.ipanel-cpFeature__circle {
    width: 120px; height: 120px; border-radius: 50%; margin: 0 auto 24px;
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-weight: 700; font-size: 16px; line-height: 1.4;
}
.ipanel-cpFeature__circle--red { background: var(--ipanel-cp-accent); box-shadow: 0 8px 24px rgba(230,51,18,.25); }
.ipanel-cpFeature__circle--gold { background: var(--ipanel-cp-gold); box-shadow: 0 8px 24px rgba(232,160,0,.25); }
.ipanel-cpFeature__circle--navy { background: var(--ipanel-cp-navy); box-shadow: 0 8px 24px rgba(44,62,96,.25); }
.ipanel-cpFeature__card { background: #fff; border-radius: 12px; padding: 20px; box-shadow: 0 2px 12px rgba(0,0,0,.06); }
.ipanel-cpFeature__card p { font-size: 14px; color: #555; line-height: 1.9; margin: 0; }

/* アイリンク: QR + サンプル画面 */
.ipanel-cpAilink__qr { display: block; margin: 0 auto; max-width: 220px; height: auto; }
.ipanel-cpSample { background: #f7f7f7; border: 1px solid #ddd; border-radius: 12px; overflow: hidden; box-shadow: 0 4px 20px rgba(0,0,0,.08); }
.ipanel-cpSample__head { background: #fff; padding: 20px 28px; border-bottom: 2px solid var(--ipanel-cp-accent); }
.ipanel-cpSample__company { font-size: 18px; font-weight: 700; color: #1a1a1a; margin-bottom: 4px; }
.ipanel-cpSample__comment { color: var(--ipanel-cp-accent); font-weight: 700; font-size: 15px; }
.ipanel-cpSample__body { background: #fff; padding: 20px 28px; }
.ipanel-cpSample__table { width: 100%; border-collapse: collapse; font-size: 13px; }
.ipanel-cpSample__table td { padding: 10px 14px; border: 1px solid #ddd; }
.ipanel-cpSample__table td.k { background: #f5f5f5; font-weight: 600; width: 120px; white-space: nowrap; }

/* 施工例: 4枚 + 2枚 */
.ipanel-cpWorks__label { font-size: 15px; font-weight: 700; color: #555; letter-spacing: 0.1em; margin: 0 0 20px; display: flex; align-items: center; gap: 10px; }
.ipanel-cpWorks__label::before { content: ""; display: inline-block; width: 4px; height: 18px; background: var(--ipanel-cp-accent); border-radius: 2px; }
.ipanel-cpWorks__grid4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 40px; }
.ipanel-cpWorks__grid2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.ipanel-cpWorks__card { border-radius: 10px; overflow: hidden; box-shadow: 0 2px 12px rgba(0,0,0,.1); background: #f0f0f0; }
.ipanel-cpWorks__card--tall { aspect-ratio: 3/4; }
.ipanel-cpWorks__card img { width: 100%; height: 100%; object-fit: cover; display: block; }
.ipanel-cpWorks__cap { padding: 14px 16px; background: #fff; }
.ipanel-cpWorks__cap p { font-size: 14px; font-weight: 600; color: #1a1a1a; margin: 0; }

/* 設置方法: 2x2 動画グリッド */
.ipanel-cpVideoGrid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.ipanel-cpVideoCard { display: block; border-radius: 12px; overflow: hidden; box-shadow: 0 2px 16px rgba(0,0,0,.10); text-decoration: none; transition: transform .2s, box-shadow .2s; }
.ipanel-cpVideoCard:hover { transform: translateY(-4px); box-shadow: 0 8px 28px rgba(0,0,0,.18); }
.ipanel-cpVideoCard__thumb { position: relative; aspect-ratio: 16/9; overflow: hidden; background: #000; }
.ipanel-cpVideoCard__thumb img.bg { width: 100%; height: 100%; object-fit: cover; display: block; }
.ipanel-cpVideoCard__play { position: absolute; inset: 0; margin: auto; width: 56px; height: 56px; }
.ipanel-cpVideoCard__cap { padding: 14px 16px; background: #fff; }
.ipanel-cpVideoCard__cap p { margin: 0; }
.ipanel-cpVideoCard__cap .t { font-size: 14px; font-weight: 700; color: #1a1a1a; }
.ipanel-cpVideoCard__cap .y { font-size: 12px; color: var(--ipanel-cp-accent); margin-top: 4px; font-weight: 500; }
.ipanel-cpVideoNote { font-size: 12px; color: #999; margin-top: 16px; text-align: center; }

/* FAQ アコーディオン */
.ipanel-cpFaq__item { background: #fff; border-radius: 12px; overflow: hidden; box-shadow: 0 2px 12px rgba(0,0,0,.06); margin-bottom: 12px; }
.ipanel-cpFaq__q { width: 100%; text-align: left; padding: 20px 24px; background: none; border: none; cursor: pointer; display: flex; align-items: center; gap: 16px; font-family: inherit; }
.ipanel-cpFaq__badge { width: 28px; height: 28px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-weight: 700; font-size: 13px; flex-shrink: 0; }
.ipanel-cpFaq__badge--q { background: var(--ipanel-cp-accent); color: #fff; }
.ipanel-cpFaq__badge--a { background: #f7f5f2; color: var(--ipanel-cp-navy); border: 2px solid var(--ipanel-cp-navy); }
.ipanel-cpFaq__qtext { font-size: 15px; font-weight: 700; color: #1a1a1a; flex: 1; }
.ipanel-cpFaq__arrow { font-size: 18px; color: var(--ipanel-cp-accent); transition: transform .3s; flex-shrink: 0; }
.ipanel-cpFaq__item.is-open .ipanel-cpFaq__arrow { transform: rotate(45deg); }
.ipanel-cpFaq__a { display: none; padding: 0 24px 20px 68px; }
.ipanel-cpFaq__item.is-open .ipanel-cpFaq__a { display: block; }
.ipanel-cpFaq__arow { display: flex; gap: 16px; align-items: flex-start; }
.ipanel-cpFaq__atext { font-size: 14px; color: #555; line-height: 1.9; margin: 0; padding-top: 4px; }

@media (max-width: 767px) {
    .ipanel-cp__wrap { padding: 32px 20px; }
    .ipanel-cpWorks__grid4 { grid-template-columns: repeat(2, 1fr); }
    .ipanel-cpWorks__grid2, .ipanel-cpVideoGrid { grid-template-columns: 1fr; }
    .ipanel-cpFaq__a { padding-left: 24px; }
}