@charset "UTF-8";
/* =====================================================================
   eigo--2025.css
   中学ポピー デジタルサポート 英語(2025) 用 統合CSS

   旧 style.css / style_ex.css / eigo2025--add.css を、
   「読み込み順（上書き順）」を保ったまま1ファイルに集約したものです。
     1. 変数・リセット・ベース
     2. レイアウト（header / navi / main / footer）
     3. 見出し
     4. 一覧ページ（学年・教科・号数メニュー）
     5. コンテンツページ部品（音声・台本アコーディオン・ボタン・ページ送り 等）
     6. 文字装飾・インデント・余白ユーティリティ
     7. レスポンシブ
   ===================================================================== */


/* ===================================
   1. 変数・リセット・ベース
=================================== */
:root {
    --color-eng:            #ea500c;  /* 英語（オレンジ） */
    --color-eng-standard:   #ecaf1f;  /* 英語 標準版（イエロー） */
    --color-hover-bg:       rgb(70, 62, 62);

    --color-text-primary:   #1c1917;
    --color-text-secondary: #78716c;
    --color-text-link:      #0369a1;
    --radius-pill:          999px;
}

*, *::before, *::after { box-sizing: border-box; }

html {
    font-family: 'メイリオ','Meiryo','Hiragino Kaku Gothic Pro','ヒラギノ角ゴ Pro W3','Osaka','ＭＳ Ｐゴシック',sans-serif;
    -webkit-font-smoothing: antialiased;
    -webkit-text-size-adjust: 100%;
    overflow-x: hidden;
}
body {
    margin: 0;
    padding: 0;
    color: #000;
    overflow-x: hidden;
    width: 100%;
}
body.page-flat {
    display: grid;
    grid-template-rows: auto 1fr auto;
    min-height: 100vh;
}
ul { padding: 0; }

a { color: #0066c0; }
a:hover { color: #333; font-weight: bold; }
a:visited { color: #333; font-weight: bold; }
/* ===================================
   2. レイアウト（header / navi / main / footer）
   ※ header.txt / footer_*.txt（SSI）で使われる想定のため残置
=================================== */
header {
    width: 100%;
    margin: 0 auto;
    padding: 0.5rem 0;
    text-align: center;
}
header h1 { font-size: 1.6rem; display: block; }
header h1 a { text-decoration: none; }
header nav a:hover { opacity: 0.6; }

.navi {
    width: 100%;
    margin: 10px auto;
    padding: 1rem;
    text-align: center;
    background-color: var(--color-eng);
    color: #fff;
}
.navi a { color: #fff; }
.navi a:hover { color: #fff; font-weight: bold; }
.navi p { font-size: 16px;}
main {
    width: min(960px, 92%);
    margin: 0 auto;
    padding: 2rem 0 3rem;
    background-color: #FFF;
}

footer p {
    line-height: 2;
    text-align: center;
    padding: 14px 0;
    font-size: 12px;
}


/* ===================================
   3. 見出し
=================================== */
main h2 {
    text-align: center;
    font-size: 1.5rem;
    margin: 0;
}
main h3 {
    margin: 0;
    font-size: 1.3rem;
    text-align: center;
}
main h3 span { font-size: 1rem; }
main h4 {
    color: #333;
    text-align: center;
    font-size: 1.3rem;
    margin: 0;
}
body#chu_eng main h3,
body#chu_eng main h4 { color: var(--color-eng); }

/* 4技能 Listening / Speaking / Writing の帯 */
main h5 {
    font-size: 1rem;
    margin: 10px;
    padding: 5px;
    background-color: rgba(240,140,0,0.80);
    color: white;
}
.skillsl { font-size: 1rem; margin: 10px; padding: 5px 0 5px 20px; background-color: #ff6347; color: white; } /* Listening */
.skillss { font-size: 1rem; margin: 10px; padding: 5px 0 5px 20px; background-color: #9acd32; color: white; } /* Speaking */
.skillst { font-size: 1rem; margin: 10px; padding: 5px 0 5px 20px; background-color: #87cefa; color: white; } /* Writing */


/* ===================================
   4. 一覧ページ
=================================== */

/* --- パンくず（新タイプ） --- */
.breadcrumb {
    display: inline-block;
    margin: 1.2rem 0;
    padding: 0.45rem 1.2rem;
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    border-radius: var(--radius-pill);
}

/* --- パンくず（旧タイプ .bred.gy / .pankuzu） --- */
.bred { font-size: 0.8rem; margin: 1rem; }
.gy {
    background-color: #eee;
    color: #333;
    padding: 0 1.4rem;
    border-radius: 50px;
}
.to_top a,
.to_top a:visited { color: #0066c0; }
.to_top a:hover { text-decoration: none; color: #333; font-weight: bold; }

/* --- ページ上部へ戻る --- */
.to_top {
    text-align: right;
    font-size: 0.8rem;
    margin: 1rem;
    color: #333;
    padding: 0 2rem;
    border-radius: 4px;
}

/* --- 学年トップ（英語/数学/理科）・準拠別・標準版の入口ボタン --- */
.subject-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    margin-top: 2rem;
}
.subject-list div {
    width: 44%;
    margin-bottom: 2rem;
    border-radius: 0.5rem;
}
.subject-list div a {
    display: block;
    text-align: center;
    text-decoration: none;
    padding: 1rem 0;
    font-size: 20px;
    color: #FFF;
}
.subject-list div.math         { background-color: #109cda; }
.subject-list div.sci          { background-color: #f6ab00; }
.subject-list div.eng          { background-color: var(--color-eng); }
.subject-list div.eng-standard { background-color: var(--color-eng-standard); }
.subject-list div.eng:hover,
.subject-list div.eng-standard:hover,
.subject-list div.math:hover,
.subject-list div.sci:hover {
    opacity: 0.3;
    transition: .3s;
    background-color: var(--color-hover-bg);
    color: #FFF;
}
.subject-list div.eng span{font-size: 80%;}

/* --- 4技能スタディワーク 月号ボタン --- */
ul.workbook-number {
    display: flex;
    list-style: none;
    flex-wrap: wrap;
    justify-content: flex-start;
    padding: 0;
    margin: 1rem auto 0;
}
/* li が4つ以下のときだけ中央揃え */
ul.workbook-number:has(li:first-child:nth-last-child(-n+4)) {
    justify-content: center;
}
.workbook-number li {
    width: 23%;
    margin-bottom: 1rem;
    border-radius: 0.5rem;
    text-align: center;
    padding: 0;
    font-size: 1.1rem;
    background-color: #ddd;
    margin-right: 0.6rem;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: normal;
    min-height: 48px;
}
.workbook-number li a {
    display: block;
    text-decoration: none;
    padding: 12.8px;
    border-radius: 0.5rem;
    width: 100%;
}

/* --- 月号選択ボタン（.eigo / .c-eigo / .eigo-st / .ddd） --- */
.eigo a {
    display: block;
    text-align: center;
    text-decoration: none;
    background-color: var(--color-eng);
    color: #FFF;
}
.c-eigo a {
    background-color: var(--color-eng-standard);
    color: #FFF;
}
.eigo-st a {
    display: block;
    text-align: center;
    text-decoration: none;
    background-color: var(--color-eng-standard);
    color: #FFF;
}
.eigo a:hover,
.c-eigo a:hover,
.eigo-st a:hover {
    opacity: 0.3;
    transition: .3s;
    background-color: var(--color-hover-bg);
    color: #FFF;
}
.ddd a { /* 準備中（リンク無効） */
    cursor: default;
    display: block;
    text-align: center;
    border-radius: 0.3rem;
    padding: 0.8rem;
    text-decoration: none;
    color: #666;
    background-color: #ddd;
    margin-right: 9px;
}

/* --- 号数・単元ボタン（旧タイプ） --- */
ul.gatugo,
ul.unit,
ul.unit1 {
    display: flex;
    list-style: none;
    flex-wrap: wrap;
    position: relative;
    justify-content: center;
    vertical-align: middle;
}
.gatugo li {
    width: 24%;
    margin-bottom: 2rem;
    border-radius: 0.5rem;
    text-align: center;
    text-decoration: none;
    padding: 0;
    font-size: 1.1rem;
    background-color: #ddd;
    margin-right: 9px;
}
.unit li,
.unit1 li {
    width: 23%;
    margin-bottom: 1rem;
    border-radius: 0.5rem;
    text-align: center;
    text-decoration: none;
    padding: 0;
    font-size: 1.1rem;
    background-color: #ddd;
    margin-right: 0.6rem;
}


/* ===================================
   5. コンテンツページ部品
=================================== */
audio { padding-top:5px; }
/* --- 音声ブロック --- */
.t_center { text-align: center; }
.textbox {
    margin: 3rem auto;
    text-align: center;
    display: block;
}
.textbox p { margin: 0.02em; }
.textbox .text {
    text-align: left;
    display: inline-block;
}
.textbox .text.video-text { text-align: center; }

/* --- 台本アコーディオン（checkbox + label） --- */
.acd-check { display: none; }
.acd-content {
    border: 1px solid #333;
    display: block;
    height: 0;
    opacity: 0;
    padding: 0 10px;
    transition: .5s;
    visibility: hidden;
    overflow: hidden;
    margin: 0 auto;
    color: #333;
}
.acd-content p { text-align: left; margin: 0; }
.acd-check:checked + .acd-label + .acd-content {
    height: 100%;
    opacity: 1;
    padding: 10px;
    visibility: visible;
}
.daihon {
    border-radius: 4px;
    padding: 0 0.3rem;
    margin: 1rem 0.2rem;
    line-height: 2.0;
    font-weight: bold;
    color: #0066c0;
}
.daihon:hover {
    color: #333;
    border-bottom: dashed 0.06em #302a2a54;
}
.daihon-a,
.daihon-b {
    padding: 0.1rem 0.1rem 0;
    margin: 0.2rem 0.2rem 1rem;
    line-height: 1.2;
    color: #333;
}
.daihon-a { background-color: #f5f5f5; }
.daihon-b { background-color: #EEEEEE; }
.annotation {
    padding: 0.7rem 0.1rem 0 1.5rem;
    margin: 0.2rem 0.2rem 1rem;
    line-height: 1.2;
    color: #333;
    font-size: 12px;
    text-indent: -1.5rem;
}

/* --- 動画ボタン（4技能 u1〜u4） --- */
.btn,
a.btn,
button.btn {
    font-weight: 700;
    line-height: 1.5;
    position: relative;
    display: inline-block;
    padding: 1rem 4rem;
    cursor: pointer;
    -webkit-user-select: none;
    user-select: none;
    transition: all 0.3s;
    text-align: center;
    vertical-align: middle;
    text-decoration: none;
    letter-spacing: 0.1em;
    color: #212529;
    border-radius: 0.5rem;
}
.btn--orange,
a.btn--orange { color: #fff; background-color: #808080; }
.btn--orange:hover,
a.btn--orange:hover { color: #fff; background: #c0c0c0; }

/* --- ページ送り（Unit1 / Unit2 …） --- */
.pageNav01 {
    margin: 10px 0;
    padding: 0 10px 5px;
    text-align: center;
}
.pageNav01 li { display: inline; margin: 0 2px; padding: 0; }
.pageNav01 li span { background-color: #4169e1; color: #ffffff; }
.pageNav01 li span,
.pageNav01 li a {
    display: inline-block;
    margin-bottom: 5px;
    padding: 1px 8px;
    text-decoration: none;
    vertical-align: middle;
    border-bottom: dotted 1px #5f6b6bad;
}
.pageNav01 li a { color: #4169e1; }
.pageNav01 li a:hover { background: #ddd; border-color: #00f; }

/* --- ページ内ジャンプ（p.2 p.3 …） --- */
.shortcut {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    position: relative;
    list-style: none;
    font-size: 1rem;
    line-height: 3rem;
}
.shortcut span {
    padding: 0.4rem;
    margin-left: 0.4rem;
    border: 2px solid rgba(248, 248, 248, 0.664);
    border-radius: 8px;
    background-color: #e1e1d5;
    color: #363535;
    font-weight: bold;
    transition: background-color 0.3s, color 0.3s;
}
.shortcut a {
    color: #363535;
    text-decoration: none;
}
.shortcut span:hover {
    background-color: #64dbda;
    color: #444;
}
.shortcut a:hover { color: #444; }
.page    { background-color: #ecaf1f; color: #363535; }
.page-4gt{ background-color: #d6d6cb; color: #363535; }
.page-gy { background-color: #e1e1d5; color: #363535; }
.page2   { background-color: #5e9b84; color: #333; }
.page3   { background-color: #de8042; color: #131212; }
.page:hover,
.page2:hover,
.page3:hover { opacity: 0.6; transition-duration: 0.3s; }


/* --- 英語巻頭 画像ズーム --- */
.zoom-img {
    cursor: pointer;
    max-width: 800px;
    overflow: visible;
    width: 100%;
    margin: auto;
}
.zoom-img img { height: auto; transition: transform .6s ease; }
.zoom-img:hover img { transform: scale(1.5); }

/* --- 解答リスト --- */
.list_answer-wrap { list-style: none; margin: 0; padding: 0; }
.list_answer01 {
    text-align: left;
    background: #e7e9e9c4;
    margin-bottom: 1px;
    padding: 2px 2px 2px 1em;
    font-size: 0.9rem;
    border-bottom: dotted 1px #5f6b6bad;
    text-indent: -1em;
}
.miyasuku {
    text-align: left;
    display: block;
    margin: auto;
    padding: 0 1em 0 3em;
    max-width: 60%;
    width: 500px;
    text-indent: -3em;
}

/* --- 閉じるボタン --- */
.chuo { display: flex; justify-content: center; }
.tojitoji {
    cursor: pointer;
    width: 6rem;
    height: auto;
    vertical-align: bottom;
    border: solid #ccc 0.02rem;
    justify-content: center;
    border-radius: 0.3rem;
    padding: 0.6rem;
    background-color: #eee;
    display: block;
    margin: 0 auto;
}
.tojitoji:hover { text-decoration: none; background-color: #ccc; }

.opc a { opacity: 1; transition: .3s; }
.opc a:hover {
    opacity: 0.3;
    background-color: var(--color-hover-bg);
    border-radius: 0.5rem;
}


/* ===================================
   6. 文字装飾・インデント・余白
=================================== */

/* --- 囲み文字 --- */
.kakomu,
.kakomu_maru,
.kakomu_tei,
.kakomu_tei1,
.kakomu_pu1,
.kakomu_pu,
.kanto,
.kakomu_tei1_gy,
.kaknin,
.kakomu_tei1-inside {
    font-family: inherit;
    vertical-align: middle;
}
.kakomu {
    padding: 0.04rem 0.3rem;
    margin: 0 4px 10px 4px;
    border: 1px solid #777;
    border-radius: 2px;
    font-size: 0.85em;
    font-weight: bold;
    color: #333;
}
.kakomu_maru {
    padding: 0.04rem 0.3rem;
    margin: 0 4px 10px 4px;
    border: 1px solid #777;
    border-radius: 50px;
    font-size: 0.85em;
    font-weight: bold;
    color: #333;
}
.kakomu_tei {
    padding: 0.04rem 0.5rem;
    margin: 0 3px 10px 6px;
    background-color: #333;
    border: 1px solid #333;
    border-radius: 4px;
    font-size: 1em;
    font-weight: bold;
    color: #fff;
}
.kakomu_tei1 {
    padding: 0.04rem 0.4rem;
    margin: 0 3px 10px 3px;
    border: 1px solid #333;
    border-radius: 4px;
    font-size: 0.8em;
    font-weight: bold;
    color: #333;
}
.kakomu_pu1 { /* おおきめ */
    padding: 0.04rem 0.5rem;
    margin: 0 3px 10px 6px;
    background-color: #f9f9f9;
    border: 1px solid #333;
    border-radius: 4px;
    font-size: 1em;
    font-weight: bold;
    color: #444;
}
.kakomu_pu { /* 小さめ  */
    padding: 0.04rem 0.4rem;
    margin: 0 3px 10px 3px;
    background-color: #444;
    border-radius: 4px;
    font-size: 0.8em;
    font-weight: bold;
    color: #fff;
}
.kanto { /* 巻頭特集 */
    padding: 0.04rem 0.8rem;
    margin: 0 2px 10px 2px;
    background-color: #666;
    border: 1px solid #777;
    border-radius: 11px;
    font-size: 0.8em;
    color: #fff;
}
.kakomu_tei1_gy {
    padding: 0.04rem 0.3rem;
    margin: 0 2px 10px 2px;
    background-color: #666;
    border-radius: 4px;
    font-size: 0.8em;
    font-weight: bold;
    color: #fff;
}
.kaknin {
    padding: 0.04rem 0.3rem;
    margin: 0 2px 10px 2px;
    background-color: #f9f9f9;
    font-size: 0.8em;
    font-weight: bold;
    color: #444;
}
.kakomu_tei1-inside {
    padding: 0 0.2rem;
    margin: 2px 0 2px 2px;
    background-color: #f9f9f9;
    border: 1px solid #666;
    border-radius: 3px;
    font-size: 0.7em;
    font-weight: bold;
    color: #333;
}
.tume { letter-spacing: -0.08em; }
.mini { font-size: 0.9rem; }
.setumei { font-size: 0.9rem; margin: 0 1.4rem; text-align: center; }

/* --- インデント --- */
.sage05 { padding-left: 0.5rem; }
.sage1  { padding-left: 1rem; }
.sage3  { padding-left: 3rem; }
.sage-1only { text-indent: 1rem; } /* 1行目だけ一字下げ（長文読解） */
/* 2行目以降をインデント（ぶら下げ） */
.sage-2ikou5,  .sage-2ikou5 li  { padding-left: 5rem;   text-indent: -5rem; }
.sage-2ikou4,  .sage-2ikou4 li  { padding-left: 4rem;   text-indent: -4rem; }
.sage-2ikou35, .sage-2ikou35 li { padding-left: 3.5rem; text-indent: -3.5rem; }
.sage-2ikou3,  .sage-2ikou3 li  { padding-left: 3rem;   text-indent: -3rem; }
.sage-2ikoux,  .sage-2ikoux li  { padding-left: 2.5rem; text-indent: -2.5rem; }
.sage-2ikou,   .sage-2ikou li   { padding-left: 1.4rem; text-indent: -1.4rem; }

/* --- 行間 --- */
.gyokan   { padding-top: 0.6rem; }
.gyokan04 { padding-top: 0.47rem; }
.gyokan15 { line-height: 1.5; }
.gyokan2  { line-height: 2; }
.gyokan25 { line-height: 2.5; }

/* --- 余白 --- */
.mt1 { margin-top: 1rem; }
.mt2 { margin-top: 2rem; }
.mt3 { margin-top: 3rem; }
.mt4 { margin-top: 4rem; }
.mt5 { margin-top: 5rem; }
.mt10 { margin-top: 10rem; }
.mb1 { margin-bottom: 0.8rem; }
.mb2 { margin-bottom: 2rem; }
.mb3 { margin-bottom: 3rem; }
.mb4 { margin-bottom: 4rem; }
.mb5 { margin-bottom: 5rem; }
.mb8 { margin-bottom: 8rem; }


/* ===================================
   7. レスポンシブ
=================================== */

/* PC・タブレット（560px〜） */
@media screen and (min-width: 560px) {
    .acd-content { width: 60%; }
    br.only_mobile,
    .btn a.only_mobile,
    img.only_mobile { display: none; }
}

/* タブレット（560〜959px） */
@media screen and (min-width: 560px) and (max-width: 959px) {
    section { margin: 0 auto; width: 90%; }
}

/* スマートフォン（〜559px） */
@media screen and (max-width: 559px) {
    .acd-content { width: 90%; }

    header h1 { margin: 10px 0 5px; width: 100%; font-size: 1.4rem; }
    header p  { margin: 0 0 5px; }

    .subject-list div { width: 90%; }

    .workbook-number li {
        width: calc(33.333% - 0.6rem); /* 3列 */
        white-space: nowrap;
        font-size: 1rem;
        margin-bottom: 0.6rem;
        margin-right: 0.4rem;
    }

    .workbook-number--single-row {
        flex-wrap: nowrap;
    }
    .workbook-number--single-row li {
        width: calc(25% - 0.4rem);
    }

    .unit li {
        width: 21%;
        margin-bottom: 0.6rem;
        font-size: 0.75rem;
        margin-right: 0.4rem;
    }
    .unit1 li { /* スマホは1列 */
        width: 90%;
        margin-bottom: 0.6rem;
        font-size: 1.2rem;
        margin-right: 0.4rem;
    }

    .zoom-img { max-width: 100%; height: auto; }
    .zoom-img img { height: auto; transition: none; }
    .zoom-img:hover img { transform: none; }
}

@media screen and (max-width: 600px) {
    .miyasuku {
        text-align: left;
        display: block;
        margin: auto;
        padding: 0 1rem;
        max-width: 80%;
    }
}