/* =====================================================================
   博清会簡易マニュアル（v2・2026-09-21）
   見た目は「博清会だより」（博清会chat掲示板/apps-script/index_v2.html）と同じ決まりごと。
   紺 × 金 × 生成り、見出しは明朝体。角は2px、影はほぼ使わない、金は線と小さな文字にだけ使う。
   ※ 色や部品を変えるときは、博清会だよりの側とそろえる
   ===================================================================== */
:root {
  --navy:#0a1f44; --navy-deep:#061535; --navy-mid:#081a3d;
  --gold:#c9a961; --gold-soft:#d8bd7c; --gold-line:rgba(201,169,97,.35);
  --gold-text:#8f6f2e;          /* 明るい面で金色の文字を読ませたいときはこちら */
  --cream:#f5efe1; --paper:#fdfaf3; --white:#ffffff;
  --ink:#1a1a1a; --ink-body:#333333; --ink-soft:rgba(26,26,26,.64); --line:#e5dfd0;
  --ok:#2f6b5e; --ok-bg:#f1f6f3;
  --danger:#a3322b; --danger-bg:#f8ecea;
  --serif:"Noto Serif JP","Hiragino Mincho ProN","Yu Mincho","YuMincho",serif;
  --serif-en:"Cormorant Garamond","Times New Roman",serif;
  --sans:"Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP","Yu Gothic","YuGothic",Meiryo,sans-serif;
  --w:880px;
  --header-h:64px;
}
* { margin:0; padding:0; box-sizing:border-box; }
html { -webkit-text-size-adjust:100%; scroll-padding-top:calc(var(--header-h) + 64px); }
body {
  background:var(--paper); color:var(--ink);
  font-family:var(--sans); font-size:15px; line-height:1.9;
  -webkit-font-smoothing:antialiased;
  min-height:100vh; display:flex; flex-direction:column;
}
a { color:inherit; }
button { font:inherit; color:inherit; }
:focus-visible { outline:2px solid var(--gold); outline-offset:2px; }
.hidden { display:none !important; }
.container { width:100%; max-width:var(--w); margin:0 auto; padding:0 24px; }
svg.i { width:1em; height:1em; flex:none; fill:none; stroke:currentColor; stroke-width:1.6; stroke-linecap:round; stroke-linejoin:round; }

/* ---------- ボタン ---------- */
.btn {
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  min-height:46px; padding:0 26px; border:1px solid var(--navy); border-radius:2px;
  background:var(--navy); color:#fff; font-size:14px; letter-spacing:.12em; font-weight:500;
  text-decoration:none; cursor:pointer; white-space:nowrap; transition:background .2s, color .2s, border-color .2s;
}
.btn:hover { background:var(--navy-mid); }
.btn.outline { background:#fff; color:var(--navy); }
.btn.outline:hover { background:rgba(10,31,68,.05); }

/* ---------- ヘッダー（ロゴ＋メニュー） ---------- */
.site-header { position:sticky; top:0; z-index:30; background:rgba(10,31,68,.97); color:#fff; border-bottom:1px solid rgba(201,169,97,.25); }
.site-header .bar { display:flex; align-items:center; justify-content:space-between; gap:20px; min-height:calc(var(--header-h) - 1px); }
.brand { display:flex; align-items:center; gap:12px; color:#fff; text-decoration:none; min-width:0; }
.logo { width:32px; height:32px; color:var(--gold); flex:none; display:block; }
.brand .name { font-family:var(--serif); font-size:15.5px; letter-spacing:.1em; line-height:1.3; white-space:nowrap; }
.brand .name small { display:block; font-family:var(--sans); font-size:9px; letter-spacing:.28em; color:rgba(255,255,255,.55); margin-top:2px; }
.menu-btn {
  display:inline-flex; align-items:center; gap:9px; height:40px; padding:0 16px 0 14px; flex:none;
  background:transparent; color:#fff; border:1px solid rgba(201,169,97,.55); border-radius:2px;
  font-size:13px; letter-spacing:.12em; cursor:pointer; transition:background .2s, border-color .2s;
}
.menu-btn .i { font-size:17px; color:var(--gold); }
.menu-btn:hover, .menu-btn[aria-expanded="true"] { background:rgba(201,169,97,.14); border-color:var(--gold); }

/* ---------- ページを選ぶメニュー（ポップアップ） ---------- */
.menu-back { position:fixed; top:0; right:0; bottom:0; left:0; z-index:90; background:rgba(6,21,53,.38); animation:fadeIn .2s ease-out; }
.menu {
  position:fixed; z-index:95; top:calc(var(--header-h) + 8px);
  right:max(16px, calc((100vw - var(--w)) / 2 + 24px));
  width:420px; max-width:calc(100vw - 32px); max-height:calc(100vh - var(--header-h) - 24px);
  display:flex; flex-direction:column; background:#fff; border-top:2px solid var(--gold); border-radius:2px;
  box-shadow:0 24px 60px rgba(6,21,53,.28); animation:dropIn .22s ease-out;
}
.menu:focus { outline:none; }
@keyframes fadeIn { from { opacity:0; } to { opacity:1; } }
@keyframes dropIn { from { opacity:0; transform:translateY(-8px); } to { opacity:1; transform:none; } }
@keyframes sheetUp { from { transform:translateY(100%); } to { transform:none; } }
.menu-head { display:flex; align-items:center; justify-content:space-between; gap:12px; padding:16px 16px 12px 22px; border-bottom:1px solid var(--line); }
.menu-title { font-family:var(--serif); font-size:16px; letter-spacing:.08em; color:var(--navy); }
.menu-close { width:36px; height:36px; display:flex; align-items:center; justify-content:center; border:0; background:none; color:var(--ink-soft); font-size:20px; cursor:pointer; border-radius:2px; }
.menu-close:hover { background:var(--cream); color:var(--navy); }
.menu-body { overflow-y:auto; padding:6px 10px 12px; -webkit-overflow-scrolling:touch; }
.menu-group { display:flex; align-items:center; gap:10px; margin:14px 12px 6px; font-size:11px; letter-spacing:.2em; color:var(--gold-text); }
.menu-group::before { content:""; width:18px; height:1px; background:var(--gold); flex:none; }
.menu-item { display:flex; align-items:center; gap:14px; padding:12px; border-radius:2px; color:var(--ink); text-decoration:none; transition:background .15s; }
.menu-item:hover { background:var(--paper); }
.menu-item.is-current { background:var(--cream); }
.mi-ic { width:40px; height:40px; flex:none; display:flex; align-items:center; justify-content:center; border:1px solid var(--gold-line); border-radius:2px; color:var(--navy); font-size:19px; background:#fff; }
.menu-item.kaizen .mi-ic { color:var(--ok); border-color:rgba(47,107,94,.28); }
.mi-body { flex:1; min-width:0; line-height:1.55; }
.mi-title { display:flex; align-items:center; flex-wrap:wrap; gap:4px 8px; font-size:14.5px; letter-spacing:.04em; color:var(--navy); }
.mi-here { font-size:10px; letter-spacing:.12em; color:#fff; background:var(--navy); padding:0 7px; border-radius:2px; line-height:1.8; }
.mi-soon { font-size:10px; letter-spacing:.12em; color:var(--ink-soft); border:1px solid var(--line); padding:0 7px; border-radius:2px; line-height:1.8; }
.mi-desc { display:block; font-size:12px; color:var(--ink-soft); margin-top:1px; }
.mi-go { flex:none; font-size:16px; color:var(--gold-text); display:flex; }
.menu-item.is-soon { cursor:default; }
.menu-item.is-soon:hover { background:none; }
.menu-item.is-soon .mi-ic, .menu-item.is-soon .mi-title { opacity:.55; }
.menu-fold > summary { list-style:none; cursor:pointer; }
.menu-fold > summary::-webkit-details-marker { display:none; }
.menu-fold[open] > summary { background:var(--paper); }
.mi-chev { transition:transform .2s; }
.menu-fold[open] .mi-chev { transform:rotate(180deg); }
.menu-sub { display:flex; flex-direction:column; gap:2px; padding:4px 8px 10px 66px; }
.sub-item { display:flex; align-items:center; gap:10px; padding:8px 10px; border-radius:2px; color:var(--ink); text-decoration:none; transition:background .15s; }
.sub-item:hover { background:var(--paper); }
.si-name { flex:1; min-width:0; font-size:13px; line-height:1.5; color:var(--navy); }
.si-sub { flex:none; font-size:11px; color:var(--ink-soft); white-space:nowrap; }
.si-go { flex:none; display:flex; font-size:13px; color:var(--gold-text); }
.menu-foot { padding:10px 22px 14px; border-top:1px solid var(--line); font-size:11.5px; color:var(--ink-soft); line-height:1.7; }

/* ---------- ページの見出し（写真を淡く敷いた紺の帯） ---------- */
.page-hero {
  position:relative; overflow:hidden; color:#fff; background-color:var(--navy);
  background-image:
    linear-gradient(100deg, rgba(6,21,53,.95) 0%, rgba(10,31,68,.84) 55%, rgba(10,31,68,.68) 100%),
    url("hero.jpg");
  background-size:cover; background-position:center 30%;
}
.page-hero .ring { position:absolute; width:400px; height:400px; right:-130px; top:-210px; border:1px solid rgba(201,169,97,.28); border-radius:50%; pointer-events:none; }
.page-hero .inner { position:relative; padding-top:52px; padding-bottom:50px; }
.back-btn {
  display:inline-flex; align-items:center; gap:8px; margin-bottom:22px; padding:0 16px 0 12px; height:38px;
  border:1px solid rgba(201,169,97,.55); border-radius:2px; color:#fff; text-decoration:none;
  font-size:13px; letter-spacing:.08em; background:rgba(6,21,53,.35); transition:background .2s, border-color .2s;
}
.back-btn .i { font-size:16px; color:var(--gold); transition:transform .2s; }
.back-btn:hover { background:rgba(201,169,97,.14); border-color:var(--gold); }
.back-btn:hover .i { transform:translateX(-3px); }
.eyebrow { display:flex; align-items:center; gap:12px; font-size:11px; letter-spacing:.24em; text-transform:uppercase; color:var(--gold); margin-bottom:14px; }
.eyebrow::before { content:""; width:28px; height:1px; background:var(--gold); flex:none; }
.page-hero h1 { font-family:var(--serif); font-weight:500; font-size:clamp(28px, 4.4vw, 42px); line-height:1.3; letter-spacing:.08em; }
.page-hero .tagline { margin-top:12px; font-size:14px; letter-spacing:.08em; color:rgba(255,255,255,.8); }
.page-hero .ver { display:inline-block; margin-top:16px; padding:2px 12px; border:1px solid rgba(201,169,97,.55); border-radius:2px; font-size:12px; letter-spacing:.1em; color:var(--gold); }

/* ---------- 本体 ---------- */
.wrap { flex:1 0 auto; padding-bottom:72px; }
.lead { margin-top:30px; font-size:14px; color:var(--ink-soft); line-height:1.95; }
.notice { margin-top:24px; background:var(--cream); border-left:3px solid var(--gold); padding:14px 18px; font-size:13.5px; line-height:1.95; color:var(--ink-soft); }
.page-foot { display:flex; justify-content:center; margin-top:48px; padding-top:28px; border-top:1px solid var(--line); }
.page-foot .btn { min-width:260px; }

/* マニュアル一覧のカード */
.mlist { display:grid; gap:14px; margin-top:24px; }
.mcard {
  display:flex; align-items:center; gap:18px; padding:22px 22px 22px 24px;
  background:#fff; border:1px solid var(--line); border-top:2px solid var(--navy); border-radius:2px;
  color:var(--ink); text-decoration:none; transition:box-shadow .25s, transform .25s;
}
a.mcard:hover { box-shadow:0 14px 34px rgba(10,31,68,.10); transform:translateY(-2px); }
.mcard .mc-ic { width:48px; height:48px; flex:none; display:flex; align-items:center; justify-content:center; border:1px solid var(--gold-line); border-radius:2px; color:var(--navy); font-size:23px; }
.mcard .mc-body { flex:1; min-width:0; }
.mcard .mc-no { font-family:var(--serif-en); font-size:15px; color:var(--gold-text); letter-spacing:.06em; }
.mcard .mc-title { display:block; font-family:var(--serif); font-size:19px; letter-spacing:.06em; line-height:1.5; color:var(--navy); }
.mcard .mc-desc { display:block; font-size:13px; line-height:1.75; color:var(--ink-soft); margin-top:3px; }
.mcard .mc-meta { display:inline-block; margin-top:8px; font-size:11.5px; letter-spacing:.08em; color:var(--gold-text); border:1px solid var(--gold-line); padding:0 8px; border-radius:2px; }
.mcard .mc-go { flex:none; font-size:18px; color:var(--gold-text); display:flex; transition:transform .2s; }
a.mcard:hover .mc-go { transform:translateX(4px); }
.mcard.is-soon { border-top-color:var(--line); }
.mcard.is-soon .mc-ic, .mcard.is-soon .mc-title { opacity:.55; }
.soon-tag { font-size:10px; letter-spacing:.12em; color:var(--ink-soft); border:1px solid var(--line); padding:0 7px; border-radius:2px; line-height:1.8; margin-left:8px; vertical-align:3px; font-family:var(--sans); }

/* ページ内の目次（スクロールしても上に残る） */
.toc {
  position:sticky; top:var(--header-h); z-index:20; margin-top:0;
  background:rgba(253,250,243,.95); backdrop-filter:blur(8px); -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.toc .container { display:flex; gap:8px; padding-top:12px; padding-bottom:12px; overflow-x:auto; scrollbar-width:none; }
.toc .container::-webkit-scrollbar { display:none; }
.toc a {
  flex:none; display:inline-flex; align-items:center; height:34px; padding:0 14px;
  border:1px solid var(--line); border-radius:2px; background:#fff; color:var(--navy);
  font-size:13px; letter-spacing:.06em; text-decoration:none; transition:border-color .15s, background .15s;
}
.toc a:hover { border-color:var(--gold); }
.toc a.on { background:var(--navy); border-color:var(--navy); color:#fff; }

/* 章の見出し */
.sec-h { margin:56px 0 16px; }
.sec-h .eb { display:flex; align-items:center; gap:10px; font-size:11.5px; letter-spacing:.2em; color:var(--gold-text); }
.sec-h .eb::before { content:""; width:24px; height:1px; background:var(--gold); flex:none; }
.sec-h .t { display:block; margin-top:6px; font-family:var(--serif); font-weight:500; font-size:clamp(20px, 2.6vw, 24px); letter-spacing:.06em; line-height:1.5; color:var(--navy); }

/* 困ったら、この3つ */
.three { margin-top:30px; background:var(--danger-bg); border-left:3px solid var(--danger); padding:20px 22px 20px; }
.three .t { font-family:var(--serif); font-weight:500; font-size:19px; letter-spacing:.06em; color:var(--danger); margin-bottom:12px; }
.three ol { list-style:none; display:grid; gap:12px; }
.three li { display:grid; grid-template-columns:36px 1fr; align-items:center; gap:12px; font-size:17px; font-weight:500; color:var(--ink); line-height:1.6; }
.three li b { display:flex; align-items:center; justify-content:center; width:36px; height:36px; border-radius:2px; background:var(--danger); color:#fff; font-family:var(--sans); font-size:17px; font-weight:500; }   /* 番号は読み違えないようゴシック */
.three li small { display:block; font-size:13px; font-weight:400; color:var(--ink-soft); line-height:1.7; }

/* 5 STEP（押すと開く） */
.steps { display:grid; gap:10px; }
details.step { background:#fff; border:1px solid var(--line); border-radius:2px; overflow:hidden; }
details.step summary { display:grid; grid-template-columns:48px 1fr auto; align-items:center; gap:14px; padding:14px 16px; cursor:pointer; list-style:none; font-size:16.5px; font-weight:500; color:var(--navy); line-height:1.5; }
details.step summary::-webkit-details-marker { display:none; }
details.step summary:hover { background:var(--paper); }
details.step summary .n { display:flex; flex-direction:column; align-items:center; justify-content:center; width:48px; height:48px; border-radius:2px; background:var(--navy); color:rgba(255,255,255,.75); font-size:9px; letter-spacing:.14em; line-height:1.1; }
details.step summary .n em { font-style:normal; font-family:var(--sans); font-size:19px; font-weight:500; color:var(--gold); letter-spacing:0; line-height:1; margin-top:3px; }
details.step summary .chev { display:flex; font-size:18px; color:var(--gold-text); transition:transform .2s; }
details.step[open] summary .chev { transform:rotate(180deg); }
details.step .body { padding:0 18px 16px 78px; font-size:15px; line-height:1.95; color:var(--ink-body); }
details.step .body p + p { margin-top:8px; }
details.step .body strong { font-weight:500; color:var(--danger); }
details.step.danger summary { color:var(--danger); }
details.step.danger summary .n { background:var(--danger); }
details.step.danger summary .n em { color:#fff; }

/* 言ってよい・言ってはいけない */
.say { display:grid; grid-template-columns:1fr 1fr; gap:12px; }
.say > div { padding:16px 18px; font-size:14px; line-height:1.85; border-radius:2px; }
.say .ok { background:var(--ok-bg); border-top:2px solid var(--ok); }
.say .ng { background:var(--danger-bg); border-top:2px solid var(--danger); }
.say h3 { display:flex; align-items:center; gap:8px; font-size:14px; font-weight:500; letter-spacing:.1em; margin-bottom:8px; }
.say .ok h3 { color:var(--ok); } .say .ng h3 { color:var(--danger); }
.say ul { padding-left:1.2em; } .say li + li { margin-top:4px; }

/* 見きわめの表 */
.ftable { width:100%; border-collapse:collapse; background:#fff; border:1px solid var(--line); font-size:14px; line-height:1.85; }
.ftable th, .ftable td { padding:14px 16px; text-align:left; vertical-align:top; border-top:1px solid var(--line); }
.ftable tr:first-child th, .ftable tr:first-child td { border-top:0; }
.ftable th { width:34%; background:var(--cream); font-weight:500; color:var(--navy); }
.ftable td { color:var(--ink-body); }

/* カード・相談先・約束・ルール */
.mbox { background:#fff; border:1px solid var(--line); border-radius:2px; padding:20px 24px; font-size:14.5px; line-height:1.95; color:var(--ink-body); }
.mbox .h { font-weight:500; color:var(--navy); letter-spacing:.06em; margin-bottom:6px; }
.mbox .h + ol, .mbox .h + ul { margin-top:0; }
.mbox ol, .mbox ul { padding-left:1.3em; } .mbox li + li { margin-top:4px; }
.mbox .h:not(:first-child) { margin-top:16px; }
.mbox .dont { margin-top:16px; padding-top:14px; border-top:1px dashed var(--line); }
.mbox .dont b { font-weight:500; color:var(--danger); }
.contact { display:grid; gap:10px; }
.contact a.tel {
  display:flex; align-items:center; justify-content:space-between; gap:12px; padding:16px 18px;
  background:var(--navy); color:#fff; text-decoration:none; border-radius:2px; border-left:3px solid var(--gold);
  font-size:16px; font-weight:500; letter-spacing:.04em; line-height:1.55; transition:background .2s;
}
.contact a.tel:hover { background:var(--navy-mid); }
.contact a.tel small { display:block; font-size:12px; font-weight:400; color:rgba(255,255,255,.75); margin-top:2px; }
.contact a.tel .i { font-size:18px; color:var(--gold); }
.promise { margin-top:14px; background:var(--ok-bg); border-left:3px solid var(--ok); padding:14px 18px; font-size:14.5px; font-weight:500; line-height:1.9; color:#23413a; }
.note { font-size:13px; color:var(--ink-soft); margin-top:10px; line-height:1.85; }
.rule { display:grid; grid-template-columns:32px 1fr; gap:14px; align-items:start; padding:12px 0; border-top:1px solid var(--line); }
.rule:first-child { border-top:0; padding-top:2px; }
.rule:last-child { padding-bottom:2px; }
.rule b { display:flex; align-items:center; justify-content:center; width:32px; height:32px; border-radius:2px; background:var(--navy); color:var(--gold); font-family:var(--sans); font-size:15px; font-weight:500; }
.rule strong { display:block; font-size:15px; font-weight:500; color:var(--navy); line-height:1.6; }
.rule span { display:block; font-size:13px; color:var(--ink-soft); line-height:1.75; margin-top:2px; }
.src { margin-top:48px; padding-top:18px; border-top:1px solid var(--line); font-size:12px; line-height:1.85; color:var(--ink-soft); }

/* ---------- フッター ---------- */
.site-footer { margin-top:auto; background:var(--navy-deep); color:rgba(255,255,255,.7); padding:40px 0 36px; font-size:12px; letter-spacing:.06em; line-height:1.9; }
.site-footer .inner { display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:16px 32px; }
.f-brand { display:flex; align-items:center; gap:12px; color:#fff; }
.f-brand .logo { width:28px; height:28px; }
.f-brand .name { font-family:var(--serif); font-size:14.5px; letter-spacing:.1em; line-height:1.35; }
.f-brand small { display:block; font-family:var(--sans); font-size:9px; letter-spacing:.28em; color:rgba(255,255,255,.5); }
.f-note { max-width:440px; font-size:11.5px; color:rgba(255,255,255,.6); }

/* ---------- スマホ ---------- */
@media (max-width:720px) {
  :root { --header-h:54px; }
  .container { padding:0 18px; }
  .site-header .bar { gap:12px; }
  .logo { width:28px; height:28px; }
  .brand .name { font-size:14.5px; }
  .menu-btn { height:36px; padding:0 12px 0 10px; gap:7px; font-size:12.5px; letter-spacing:.08em; }
  .menu { top:auto; right:0; bottom:0; left:0; width:100%; max-width:none; max-height:84vh; animation:sheetUp .26s ease-out; padding-bottom:env(safe-area-inset-bottom); }
  .menu-head { padding:14px 12px 10px 18px; }
  .menu-body { padding:4px 6px 10px; }
  .menu-item { padding:11px 12px; gap:12px; }
  .mi-ic { width:36px; height:36px; font-size:17px; }
  .menu-sub { padding:2px 6px 10px 60px; }
  .menu-foot { padding:10px 18px 14px; }
  .page-hero .ring { display:none; }
  .page-hero .inner { padding-top:20px; padding-bottom:24px; }
  .back-btn { margin-bottom:14px; height:34px; font-size:12.5px; padding:0 14px 0 10px; }
  .eyebrow { margin-bottom:10px; font-size:10px; letter-spacing:.2em; }
  .page-hero h1 { font-size:27px; letter-spacing:.06em; }
  .page-hero .tagline { margin-top:6px; font-size:12.5px; letter-spacing:.04em; }
  .page-hero .ver { margin-top:12px; font-size:11.5px; }
  .lead { margin-top:20px; font-size:13.5px; }
  .notice { padding:12px 15px; font-size:12.5px; }
  .mcard { gap:14px; padding:16px 16px 16px 18px; }
  .mcard .mc-ic { width:40px; height:40px; font-size:19px; }
  .mcard .mc-title { font-size:17px; }
  .mcard .mc-go { display:none; }
  .toc .container { padding-top:9px; padding-bottom:9px; margin-right:0; padding-right:28px;
    -webkit-mask-image:linear-gradient(90deg, #000 calc(100% - 28px), transparent); mask-image:linear-gradient(90deg, #000 calc(100% - 28px), transparent); }
  .toc a { height:32px; padding:0 12px; font-size:12.5px; }
  .sec-h { margin:44px 0 14px; }
  .three { margin-top:22px; padding:16px 16px; }
  .three li { font-size:16px; grid-template-columns:32px 1fr; gap:10px; }
  .three li b { width:32px; height:32px; font-size:18px; }
  details.step summary { grid-template-columns:44px 1fr auto; gap:12px; padding:12px 12px; font-size:16px; }
  details.step summary .n { width:44px; height:44px; }
  details.step .body { padding:0 14px 14px 14px; }
  .say { grid-template-columns:1fr; }
  .ftable th, .ftable td { display:block; width:auto; }
  .ftable th { border-top:1px solid var(--line); padding:12px 14px 6px; }
  .ftable td { border-top:0; padding:0 14px 14px; background:#fff; }
  .ftable tr:first-child th { border-top:0; }
  .mbox { padding:16px 16px; font-size:14px; }
  .page-foot { margin-top:36px; padding-top:22px; }
  .page-foot .btn { width:100%; min-width:0; }
  .site-footer .inner { flex-direction:column; align-items:flex-start; }
}
@media (prefers-reduced-motion:reduce) {
  *, *::before, *::after { animation:none !important; transition:none !important; }
}