/* =========================================================
   GINZA SEREN  — 見た目の設定
   色・文字はこの先頭（:root）でまとめて変えられます
   ========================================================= */
:root {
  --bg: #faf7f2;          /* アイボリー（地の色） */
  --paper: #ffffff;
  --ink: #2b2523;         /* 本文の文字 */
  --muted: #6f6560;       /* 補足の文字 */
  --line: #e3d9cf;        /* 細い罫線 */
  --accent: #6b2c43;      /* 深いボルドー（リンク・ボタン） */
  --accent-deep: #4f1f31;
  --accent-soft: #f4eaec;
  --gold: #94754a;        /* 小さな飾りだけに使うアンティークゴールド */
  --band: #3f2532;        /* お問い合わせ帯（深いプラム） */
  --band-ink: #f6efe9;

  --mincho: "Shippori Mincho", "Yu Mincho", "YuMincho", "Hiragino Mincho ProN", serif;
  --gothic: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", "YuGothic", "Meiryo", sans-serif;
  --latin: "Cormorant Garamond", "Shippori Mincho", serif;

  --wrap: 1120px;
  --text: 720px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--gothic);
  font-size: 16px;
  line-height: 1.95;
  letter-spacing: .03em;
  font-feature-settings: "palt" 0;
  overflow-wrap: anywhere;
}
img { max-width: 100%; height: auto; }
a { color: var(--accent); text-underline-offset: .25em; text-decoration-thickness: 1px; }
a:hover { color: var(--accent-deep); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.wrap { width: min(100% - 32px, var(--wrap)); margin-inline: auto; }
.narrow { width: min(100% - 32px, var(--text)); margin-inline: auto; }

.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 16px; background: var(--paper); padding: 8px 12px; z-index: 100; }

/* ---------- ヘッダー ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(250, 247, 242, .97);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; min-height: 76px;
}
.brand { text-decoration: none; color: var(--ink); display: flex; flex-direction: column; line-height: 1.2; }
.brand-name { font-family: var(--latin); font-size: 26px; letter-spacing: .22em; font-weight: 500; }
.brand-sub { font-family: var(--mincho); font-size: 11px; color: var(--muted); letter-spacing: .12em; margin-top: 4px; }

.brand { flex-shrink: 0; white-space: nowrap; }
.gnav ul { list-style: none; margin: 0; padding: 0; display: flex; align-items: center; gap: 22px; }
.gnav a {
  white-space: nowrap;
  color: var(--ink); text-decoration: none; font-size: 13.5px; letter-spacing: .06em;
  padding: 6px 0; border-bottom: 1px solid transparent;
}
.gnav a:hover, .gnav a[aria-current="page"] { color: var(--accent); border-bottom-color: var(--accent); }
.gnav .nav-contact a {
  border: 1px solid var(--accent); padding: 7px 16px; color: var(--accent);
}
.gnav .nav-contact a:hover { background: var(--accent); color: #fff; }

.menu-btn {
  display: none; background: none; border: 1px solid var(--line); color: var(--ink);
  font: inherit; font-size: 12px; letter-spacing: .12em; padding: 8px 14px; cursor: pointer;
}

@media (max-width: 1080px) {
  .menu-btn { display: block; }
  .gnav {
    display: none; position: absolute; left: 0; right: 0; top: 100%;
    background: var(--bg); border-bottom: 1px solid var(--line);
  }
  .gnav.is-open { display: block; }
  .gnav ul { flex-direction: column; gap: 0; width: min(100% - 32px, var(--wrap)); margin: 0 auto; padding: 8px 0 20px; }
  .gnav li { border-top: 1px solid var(--line); }
  .gnav a { display: block; padding: 14px 0; font-size: 15px; border-bottom: 0; }
  .gnav .nav-contact a { margin-top: 14px; text-align: center; }
}

/* ---------- 見出し・共通パーツ ---------- */
.eyebrow {
  font-family: var(--latin); font-size: 14px; letter-spacing: .3em; color: var(--gold);
  text-transform: uppercase; margin: 0 0 10px;
}
h1, h2, h3, h4 { font-family: var(--mincho); font-weight: 500; line-height: 1.6; letter-spacing: .06em; }
.section { padding: 96px 0; }
.section + .section { border-top: 1px solid var(--line); }
.section-head { text-align: center; margin-bottom: 56px; }
.section-head h2 { font-size: clamp(24px, 3.2vw, 32px); margin: 0; }
.section-head p { color: var(--muted); margin: 14px 0 0; font-size: 14.5px; }
.rule { width: 40px; height: 1px; background: var(--gold); border: 0; margin: 22px auto; }

.btn {
  display: inline-block; text-decoration: none; letter-spacing: .1em; font-size: 14px;
  border: 1px solid var(--accent); color: var(--accent); padding: 13px 30px; background: transparent;
  transition: background .2s, color .2s;
}
.btn:hover { background: var(--accent); color: #fff; }
.btn-fill { background: var(--accent); color: #fff; }
.btn-fill:hover { background: var(--accent-deep); color: #fff; border-color: var(--accent-deep); }
.btn-light { border-color: rgba(246, 239, 233, .6); color: var(--band-ink); }
.btn-light:hover { background: var(--band-ink); color: var(--band); }
.more { font-size: 14px; letter-spacing: .08em; text-decoration: none; }
.more::after { content: " →"; }

/* ---------- ページの見出し（下層ページ） ---------- */
.page-head { padding: 80px 0 56px; text-align: center; border-bottom: 1px solid var(--line); }
.page-head h1 { font-size: clamp(26px, 3.6vw, 36px); margin: 0; }
.page-head .lead { color: var(--muted); margin: 16px auto 0; max-width: 640px; font-size: 15px; }
.crumbs { font-size: 12px; color: var(--muted); padding-top: 18px; letter-spacing: .06em; }
.crumbs a { color: var(--muted); }

/* ---------- トップ ---------- */
.hero { padding: 120px 0 104px; text-align: center; }
.hero-name { font-family: var(--latin); font-weight: 400; font-size: clamp(44px, 8vw, 84px); letter-spacing: .22em; margin: 0; line-height: 1.1; padding-left: .22em; }
.hero-role { font-family: var(--mincho); color: var(--muted); letter-spacing: .14em; margin: 22px 0 0; font-size: 15px; }
.hero-role span { display: inline-block; margin: 0 .7em; }
.hero-concept { margin: 56px auto 0; display: inline-block; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 22px 40px; }
.hero-concept .label { display: block; font-size: 12px; letter-spacing: .3em; color: var(--gold); }
.hero-concept .word { font-family: var(--mincho); font-size: clamp(30px, 5vw, 40px); letter-spacing: .4em; padding-left: .4em; }
.hero-concept .read { display: block; font-size: 12px; color: var(--muted); letter-spacing: .1em; }
.hero-text { max-width: 640px; margin: 40px auto 0; font-family: var(--mincho); font-size: 16.5px; line-height: 2.2; }
.hero-actions { margin-top: 44px; display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.intro { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: start; }
.intro h2 { font-size: clamp(22px, 3vw, 28px); margin: 0 0 28px; }
.intro p { margin: 0 0 1.3em; }
.intro .quote { font-family: var(--mincho); font-size: 17px; line-height: 2.2; border-left: 1px solid var(--gold); padding-left: 28px; }
@media (max-width: 860px) { .intro { grid-template-columns: 1fr; gap: 32px; } }

/* サービスカード */
.cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.card { background: var(--paper); padding: 44px 40px 40px; display: flex; flex-direction: column; }
.card .tag { font-family: var(--latin); letter-spacing: .24em; font-size: 13px; color: var(--gold); text-transform: uppercase; }
.card h3 { font-size: 22px; margin: 8px 0 14px; }
.card p { margin: 0 0 18px; font-size: 15px; }
.card .facts { list-style: none; padding: 0; margin: 0 0 24px; border-top: 1px solid var(--line); }
.card .facts li { display: flex; gap: 16px; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.card .facts b { flex: 0 0 5.5em; font-weight: 500; color: var(--muted); letter-spacing: .1em; }
.card .more { margin-top: auto; }
@media (max-width: 860px) { .cards { grid-template-columns: 1fr; } .card { padding: 36px 24px; } }

/* お客様の声 */
.voices { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.voice { border-top: 1px solid var(--gold); padding-top: 24px; }
.voice blockquote { margin: 0; font-family: var(--mincho); font-size: 15.5px; line-height: 2.1; }
.voice cite { display: block; margin-top: 14px; font-style: normal; font-size: 13px; color: var(--muted); letter-spacing: .08em; }
@media (max-width: 860px) { .voices { grid-template-columns: 1fr; } }

/* メディア実績（年表風） */
.media-list { list-style: none; margin: 0 auto; padding: 0; max-width: 820px; }
.media-list li { display: grid; grid-template-columns: 7em 1fr; gap: 24px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.media-list li:first-child { border-top: 1px solid var(--line); }
.media-list time, .media-list .when { font-family: var(--latin); font-size: 17px; color: var(--gold); letter-spacing: .06em; }
.media-list strong { font-family: var(--mincho); font-weight: 500; font-size: 16px; }
.media-list span { display: block; font-size: 14px; color: var(--muted); }
@media (max-width: 600px) { .media-list li { grid-template-columns: 1fr; gap: 2px; } }

/* 2列のリンク */
.duo { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.duo a.panel { display: block; text-decoration: none; color: var(--ink); background: var(--paper); border: 1px solid var(--line); padding: 36px 34px; transition: border-color .2s; }
.duo a.panel:hover { border-color: var(--accent); }
.duo h3 { margin: 6px 0 10px; font-size: 20px; }
.duo p { margin: 0; font-size: 14.5px; color: var(--muted); }
@media (max-width: 760px) { .duo { grid-template-columns: 1fr; } }

/* 動画 */
.video { position: relative; aspect-ratio: 16 / 9; background: #ece5dd; margin: 2em 0; }
.video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.video-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.video-grid figure { margin: 0; }
.video-grid .video { margin: 0 0 12px; }
.video-grid figcaption { font-size: 14px; color: var(--muted); }
@media (max-width: 760px) { .video-grid { grid-template-columns: 1fr; } }

/* ブログ一覧 */
.post-list { list-style: none; margin: 0; padding: 0; }
.post-list li { border-bottom: 1px solid var(--line); }
.post-list li:first-child { border-top: 1px solid var(--line); }
.post-list a { display: grid; grid-template-columns: 7.5em 1fr; gap: 20px; padding: 18px 4px; text-decoration: none; color: var(--ink); }
.post-list a:hover h3 { color: var(--accent); }
.post-list time { font-family: var(--latin); color: var(--gold); font-size: 16px; letter-spacing: .04em; }
.post-list h3 { margin: 0; font-size: 16.5px; font-weight: 500; line-height: 1.7; }
.post-list p { margin: 4px 0 0; font-size: 13.5px; color: var(--muted); line-height: 1.8; }
@media (max-width: 600px) { .post-list a { grid-template-columns: 1fr; gap: 2px; } }
.year-nav { display: flex; flex-wrap: wrap; gap: 8px 18px; justify-content: center; margin: 0 0 48px; font-family: var(--latin); font-size: 17px; }
.year-nav a { text-decoration: none; }
.year-block { margin-bottom: 64px; scroll-margin-top: 100px; }
.year-block h2 { font-family: var(--latin); font-size: 30px; font-weight: 400; letter-spacing: .12em; color: var(--gold); margin: 0 0 16px; }
.cat-nav { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin: 0 0 32px; }
.cat-nav a { font-size: 13px; text-decoration: none; border: 1px solid var(--line); padding: 6px 16px; color: var(--ink); }
.cat-nav a[aria-current="page"], .cat-nav a:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- 本文（記事・下層ページ） ---------- */
.prose { font-size: 16px; line-height: 2.05; }
.prose > *:first-child { margin-top: 0; }
.prose p { margin: 0 0 1.5em; }
.prose h2 { font-size: 24px; margin: 2.6em 0 1em; padding-bottom: .5em; border-bottom: 1px solid var(--line); }
.prose h3 { font-size: 20px; margin: 2.4em 0 .9em; padding-left: 16px; border-left: 2px solid var(--gold); line-height: 1.6; }
.prose h4 { font-size: 18px; margin: 2.2em 0 .8em; }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 3em 0; }
.prose img { display: block; margin: 2em auto; max-width: min(100%, 560px); }
.prose figure { margin: 2em 0; }
.prose blockquote { margin: 2em 0; padding: 4px 0 4px 24px; border-left: 1px solid var(--gold); font-family: var(--mincho); }
.prose table { width: 100%; border-collapse: collapse; margin: 2em 0; font-size: 15px; }
.prose th, .prose td { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 14px 12px; text-align: left; vertical-align: top; }
.prose th, .prose td:first-child { width: 30%; color: var(--muted); font-weight: 500; }
.prose.tight p { margin: 0 0 .7em; }
.prose .em { color: var(--accent); font-weight: 500; }
.prose form { margin: 1em 0 2em; }
@media (max-width: 600px) {
  .prose table, .prose tbody, .prose tr, .prose td { display: block; width: 100%; }
  .prose td:first-child { border-bottom: 0; padding-bottom: 0; }
  .prose td + td { border-top: 0; padding-top: 4px; }
}

.article-head { padding: 72px 0 40px; text-align: center; }
.article-head h1 { font-size: clamp(24px, 3.4vw, 32px); margin: 10px 0 0; }
.article-meta { font-size: 13px; color: var(--muted); letter-spacing: .08em; }
.article-meta a { color: var(--muted); }
.article-body { padding: 24px 0 80px; }
.pager { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); margin-top: 64px; }
.pager a, .pager span { background: var(--paper); padding: 22px 24px; text-decoration: none; color: var(--ink); font-size: 14.5px; }
.pager small { display: block; color: var(--muted); font-size: 12px; letter-spacing: .1em; }
.pager .next { text-align: right; }
.pager a:hover { color: var(--accent); }
@media (max-width: 600px) { .pager { grid-template-columns: 1fr; } .pager .next { text-align: left; } }

/* 料金・概要の表 */
.facts-table { width: 100%; border-collapse: collapse; margin: 2em 0; }
.facts-table th, .facts-table td { border-bottom: 1px solid var(--line); padding: 16px 8px; text-align: left; vertical-align: top; font-size: 15px; }
.facts-table tr:first-child th, .facts-table tr:first-child td { border-top: 1px solid var(--line); }
.facts-table th { width: 32%; font-weight: 500; color: var(--muted); letter-spacing: .06em; }
.price { font-family: var(--mincho); font-size: 19px; color: var(--accent); }

/* 段階（講座の回） */
.steps { list-style: none; margin: 2em 0; padding: 0; counter-reset: s; }
.steps li { display: grid; grid-template-columns: 4.5em 1fr; gap: 20px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.steps li:first-child { border-top: 1px solid var(--line); }
.steps .no { font-family: var(--latin); color: var(--gold); font-size: 15px; letter-spacing: .12em; padding-top: 3px; }
.steps h3 { margin: 0 0 4px; font-size: 18px; border: 0; padding: 0; }
.steps p { margin: 0; font-size: 15px; }

/* 年表 */
.timeline { list-style: none; margin: 2em 0; padding: 0; }
.timeline li { display: grid; grid-template-columns: 7.5em 1fr; gap: 22px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.timeline li:first-child { border-top: 1px solid var(--line); }
.timeline .age { font-family: var(--mincho); color: var(--accent); }
.timeline .age small { display: block; font-family: var(--latin); color: var(--gold); font-size: 14px; }
.timeline p { margin: 0; }
.timeline .note { font-size: 14px; color: var(--muted); margin-top: 4px; }
@media (max-width: 600px) { .timeline li, .steps li { grid-template-columns: 1fr; gap: 4px; } }

.note-box { background: var(--paper); border: 1px solid var(--line); padding: 28px 30px; margin: 2em 0; }
.note-box h3 { margin-top: 0; border: 0; padding: 0; font-size: 17px; }
.note-box ul { margin: 0; padding-left: 1.2em; }

.voice-list { display: grid; gap: 0; }
.voice-item { padding: 40px 0; border-bottom: 1px solid var(--line); }
.voice-item:first-child { border-top: 1px solid var(--line); }
.voice-item h2 { font-size: 15px; letter-spacing: .2em; color: var(--gold); font-family: var(--latin); margin: 0 0 14px; border: 0; padding: 0; }
.voice-item p { margin: 0 0 1em; }
.voice-item .who { text-align: right; color: var(--muted); font-size: 14px; margin: 0; }
.voice-item img { margin: 1.4em 0 0; max-width: 260px; }

.links-list { list-style: none; padding: 0; margin: 2em 0; }
.links-list li { padding: 22px 0; border-bottom: 1px solid var(--line); }
.links-list li:first-child { border-top: 1px solid var(--line); }
.links-list span { display: block; color: var(--muted); font-size: 14px; }
.links-list a { font-family: var(--mincho); font-size: 18px; }

/* ---------- お問い合わせ帯・フッター ---------- */
.contact-band { background: var(--band); color: var(--band-ink); padding: 88px 0; text-align: center; }
.contact-band .eyebrow { color: #cdb38a; }
.contact-band h2 { font-size: clamp(22px, 3vw, 28px); margin: 0 0 18px; }
.contact-band p { margin: 0 auto 8px; max-width: 620px; font-size: 15px; color: rgba(246, 239, 233, .85); }
.contact-band .hours { display: flex; justify-content: center; gap: 12px 36px; flex-wrap: wrap; margin: 28px 0 36px; font-size: 14px; }
.contact-band .hours b { font-weight: 500; color: #cdb38a; margin-right: 10px; letter-spacing: .1em; }
.contact-band .actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

.site-footer { padding: 64px 0 40px; font-size: 13.5px; color: var(--muted); }
.footer-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 40px; }
.site-footer .brand-name { font-size: 22px; color: var(--ink); }
.site-footer address { font-style: normal; margin-top: 14px; line-height: 1.9; }
.site-footer h3 { font-family: var(--latin); font-size: 13px; letter-spacing: .26em; color: var(--gold); margin: 0 0 12px; font-weight: 500; }
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin: 0 0 6px; }
.site-footer a { color: var(--muted); text-decoration: none; }
.site-footer a:hover { color: var(--accent); text-decoration: underline; }
.copyright { border-top: 1px solid var(--line); margin-top: 44px; padding-top: 22px; font-size: 12px; letter-spacing: .08em; }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr; gap: 28px; } }

@media (max-width: 600px) {
  body { font-size: 15.5px; }
  .section { padding: 72px 0; }
  .hero { padding: 84px 0 76px; }
  .hero-concept { padding: 18px 22px; }
  .hero-text { font-size: 15.5px; text-align: left; }
  .hero-text br { display: none; }
  .hero-role span { display: block; margin: 0; }
  .page-head { padding: 56px 0 40px; }
}

/* ---------- トップ1ページ構成 ---------- */
section[id] { scroll-margin-top: 76px; }
.more-voices { margin: 48px auto 0; }
.more-voices > summary {
  list-style: none; cursor: pointer; text-align: center; width: fit-content; margin: 0 auto;
  border: 1px solid var(--accent); color: var(--accent); padding: 13px 30px; font-size: 14px; letter-spacing: .1em;
}
.more-voices > summary::-webkit-details-marker { display: none; }
.more-voices > summary::after { content: "  ＋"; }
.more-voices[open] > summary::after { content: "  －"; }
.more-voices > summary:hover { background: var(--accent); color: #fff; }
#contact .facts-table { margin-top: 0; }

/* Google フォームの埋め込み */
.form-wrap { background: var(--paper); border: 1px solid var(--line); }
.form-wrap iframe { display: block; width: 100%; height: 2250px; border: 0; }
@media (max-width: 600px) { .form-wrap iframe { height: 2700px; } }