*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    :root {
      --olive:      #6b8f71;
      --olive-dark: #4a6b50;
      --olive-tint: #eef4ee;
      --olive-soft: #e8f0e9;
      --bs:         #d8be62;
      --bs-deep:    #ab8d33;
      --bs-soft:    #f5ecc8;
      --bs-tint:    #fbf5dc;
      --paper:      #fbf8f1;
      --paper-2:    #f4efe2;
      --ink:        #1f1d18;
      --ink-soft:   #4a4641;
      --ink-mute:   #8a857c;
      --line:       #e5dfd0;
      --serif:  "Shippori Mincho", "Hiragino Mincho ProN", serif;
      --sans:   "Zen Kaku Gothic New", "Hiragino Sans", system-ui, sans-serif;
      --italic: "Cormorant Garamond", serif;
      --mono:   "JetBrains Mono", ui-monospace, monospace;
    }
    html { font-size: 16px; scroll-behavior: smooth; overflow-x: hidden; }
    body { font-family: var(--sans); color: var(--ink); background: var(--paper); line-height: 1.8; overflow-x: hidden; }
    img { max-width: 100%; height: auto; display: block; }
    a { color: inherit; text-decoration: none; }

    /* ── ヘッダー ── */
    .header { position: fixed; top: 0; left: 0; right: 0; z-index: 200; background: rgba(251,248,241,.96); backdrop-filter: blur(6px); border-bottom: 1px solid var(--line); transition: transform .3s; }
    .header.hidden { transform: translateY(-100%); }
    .header-inner { max-width: 1080px; margin: 0 auto; padding: 14px 20px; display: flex; align-items: center; justify-content: space-between; }
    .logo { font-family: var(--italic); font-style: italic; font-weight: 500; font-size: 1.3rem; line-height: 1.1; }
    .back-link { font-family: var(--mono); font-size: .68rem; letter-spacing: .08em; color: var(--ink-soft); display: flex; align-items: center; gap: 6px; padding: 6px 14px; border: 1px solid var(--line); border-radius: 999px; transition: background .2s; }
    .back-link:hover { background: var(--olive-tint); }
    .logo small { display: block; font-family: var(--mono); font-style: normal; font-size: .56rem; letter-spacing: .2em; color: var(--ink-mute); margin-top: 3px; }
    .hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
    .hamburger span { display: block; width: 22px; height: 1.2px; background: var(--ink); transition: all .3s; }
    .nav ul { display: flex; gap: 22px; list-style: none; align-items: center; }
    .nav a { font-size: .8rem; letter-spacing: .04em; }
    .nav a:hover { color: var(--olive); }
    .nav a.active { color: var(--olive); font-weight: 500; }
    .btn-nav { background: var(--olive); color: var(--paper) !important; padding: 8px 18px; border-radius: 999px; font-size: .78rem; }
    .nav-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.4); z-index: 190; }

    /* ── 共通 ── */
    .section { padding: 64px 0; }
    .section.bg-warm { background: var(--paper-2); }
    .section.bg-white { background: #fff; }
    .container { max-width: 1080px; margin: 0 auto; padding: 0 22px; }
    .eyebrow { font-family: var(--mono); font-size: .6rem; letter-spacing: .3em; color: var(--olive); text-transform: uppercase; margin-bottom: 10px; }
    .sec-title { font-family: var(--serif); font-size: clamp(1.3rem, 3vw, 1.7rem); font-weight: 500; line-height: 1.7; margin-bottom: 10px; letter-spacing: .04em; }
    .sec-lead { font-size: .88rem; color: var(--ink-soft); line-height: 2.1; }
    .divider { border: none; border-top: 1px solid var(--line); margin: 0; }
    .rule-line { width: 28px; height: 1px; background: var(--olive); margin-top: 4px; }
    .secthead { display: flex; flex-direction: column; gap: 6px; margin-bottom: 28px; }
    .btn-primary { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 13px 26px; background: var(--olive); color: var(--paper); border: 1px solid var(--olive); border-radius: 999px; font-size: .85rem; letter-spacing: .1em; font-weight: 500; transition: opacity .2s; }
    .btn-primary:hover { opacity: .88; }
    .btn-line { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 14px 24px; background: #06c755; color: #fff; border-radius: 999px; font-size: .85rem; letter-spacing: .06em; font-weight: 500; }

    /* ── ページヒーロー ── */
    .page-hero { position: relative; padding: 110px 22px 52px; border-bottom: 1px solid var(--line); overflow: hidden; background: var(--olive-tint); }
    .page-hero-inner { position: relative; z-index: 1; max-width: 1080px; margin: 0 auto; }
    .page-hero-en { font-family: var(--mono); font-size: .6rem; letter-spacing: .3em; color: var(--olive); text-transform: uppercase; margin-bottom: 14px; }
    .page-hero-title { font-family: var(--serif); font-size: clamp(1.6rem, 4vw, 2.2rem); font-weight: 500; margin-bottom: 14px; letter-spacing: .04em; }
    .page-hero-lead { font-size: .92rem; color: var(--ink-soft); line-height: 2.1; }
    .breadcrumb { font-family: var(--mono); font-size: .6rem; letter-spacing: .1em; color: var(--ink-mute); margin-top: 20px; }
    .breadcrumb a { color: var(--olive); }

    /* ── 代表セクション ── */
    .lead-instructor { display: grid; grid-template-columns: 360px 1fr; gap: 44px; align-items: start; }
    .lead-photo { position: relative; }
    .lead-photo img { width: 100%; aspect-ratio: 3/4; object-fit: cover; border-radius: 8px; object-position: center 20%; }
    .lead-photo-caption { font-family: var(--mono); font-size: .58rem; letter-spacing: .18em; color: var(--ink-mute); margin-top: 10px; text-align: center; }
    .lead-info .eyebrow { color: var(--olive); }
    .lead-name { font-family: var(--serif); font-size: clamp(1.5rem, 3vw, 1.9rem); font-weight: 500; line-height: 1.4; margin-bottom: 6px; letter-spacing: .04em; }
    .lead-name-en { font-family: var(--italic); font-style: italic; font-size: .9rem; color: var(--olive-dark); margin-bottom: 14px; }
    .lead-role { font-family: var(--serif); font-size: .92rem; color: var(--olive-dark); font-weight: 500; margin-bottom: 8px; }
    .lead-qualif { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 22px; }
    .lead-qualif span { display: inline-block; font-family: var(--mono); font-size: .56rem; letter-spacing: .1em; color: var(--olive-dark); background: var(--olive-soft); padding: 4px 11px; border-radius: 999px; }
    .lead-bio { font-size: .86rem; color: var(--ink-soft); line-height: 2.1; }
    .lead-bio p { margin-bottom: 14px; }
    .lead-bio p:last-child { margin-bottom: 0; }

    /* ── 講師グリッド ── */
    .instructor-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; margin-top: 24px; }
    .instructor-card { background: var(--paper); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; display: flex; flex-direction: column; }
    .instructor-photo, .instructor-photo-pending { width: 100%; aspect-ratio: 3/4; }
    .instructor-photo { object-fit: cover; display: block; }
    .instructor-photo-pending { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; background: var(--olive-tint); border-bottom: 1.5px dashed var(--olive-soft); }
    .photo-pending-icon { width: 32px; height: 32px; opacity: .35; }
    .photo-pending-label { font-family: var(--mono); font-size: .62rem; letter-spacing: .14em; color: var(--olive-dark); opacity: .7; text-align: center; line-height: 1.9; padding: 0 12px; }
    .instructor-info { padding: 22px 22px 24px; flex: 1; display: flex; flex-direction: column; }
    .instructor-name { font-family: var(--serif); font-size: 1.15rem; font-weight: 500; letter-spacing: .04em; margin-bottom: 4px; }
    .instructor-name-jp { font-family: var(--mono); font-size: .58rem; letter-spacing: .18em; color: var(--ink-mute); margin-bottom: 10px; }
    .instructor-role { font-family: var(--serif); font-size: .82rem; color: var(--olive-dark); margin-bottom: 8px; }
    .instructor-qualif { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 14px; }
    .instructor-qualif span { display: inline-block; font-family: var(--mono); font-size: .54rem; letter-spacing: .08em; color: var(--olive-dark); background: var(--olive-soft); padding: 3px 9px; border-radius: 999px; }
    .instructor-bio { font-size: .8rem; color: var(--ink-soft); line-height: 2; }

    /* ── CTA ── */
    .cta-section { background: var(--paper-2); padding: 56px 20px; text-align: center; }
    .cta-title { font-family: var(--serif); font-size: 1.4rem; font-weight: 500; margin: 12px 0 8px; color: var(--ink); }
    .cta-sub { font-size: .84rem; color: var(--ink-soft); margin-bottom: 28px; line-height: 2; }
    .cta-btns { display: flex; gap: 12px; justify-content: center; flex-direction: column; max-width: 320px; margin: 0 auto; }

    /* ── フッター ── */
    footer { background: var(--olive-dark); color: rgba(251,248,241,.65); padding: 40px 22px 32px; }
    .footer-top { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; }
    .footer-logo { font-family: var(--italic); font-style: italic; font-weight: 500; font-size: 1.3rem; color: var(--paper); }
    .footer-logo small { display: block; font-family: var(--mono); font-style: normal; font-size: .54rem; letter-spacing: .25em; color: rgba(251,248,241,.5); margin-top: 4px; }
    .footer-links { display: flex; flex-direction: column; gap: 4px; text-align: right; }
    .footer-links a { font-size: .72rem; color: rgba(251,248,241,.7); }
    .footer-addr { margin-top: 24px; font-size: .72rem; opacity: .75; line-height: 2; }
    .footer-meta { margin-top: 20px; padding-top: 16px; border-top: 1px solid rgba(251,248,241,.15); display: flex; justify-content: space-between; font-family: var(--mono); font-size: .58rem; letter-spacing: .15em; opacity: .55; }

    /* ── スマホ固定CTA ── */
    .sticky-cta { display: none; position: fixed; bottom: 0; left: 0; right: 0; z-index: 150; padding: 10px 14px; background: rgba(251,248,241,.96); backdrop-filter: blur(6px); border-top: 1px solid var(--line); }
    .sticky-btn { flex: 1; padding: 12px; text-align: center; border-radius: 999px; font-size: .8rem; letter-spacing: .06em; font-weight: 500; }
    .sticky-btn-reserve { background: var(--olive); color: var(--paper); }
    .sticky-btn-line { background: var(--paper); color: var(--olive-dark); border: 1px solid var(--olive); }

    /* ── レスポンシブ ── */
    @media (max-width: 900px) {
      .lead-instructor { grid-template-columns: 1fr; gap: 28px; }
      .lead-photo { max-width: 320px; margin: 0 auto; }
    }
    @media (max-width: 768px) {
      .hamburger { display: flex; }
      .nav { position: fixed; top: 0; right: -100%; width: 72%; max-width: 260px; height: 100vh; background: var(--paper); padding: 68px 24px 24px; transition: right .3s; z-index: 200; overflow-y: auto; box-shadow: -8px 0 24px rgba(0,0,0,.08); }
      .nav.open { right: 0; }
      .nav-overlay { display: block; opacity: 0; pointer-events: none; transition: opacity .3s; }
      .nav-overlay.open { opacity: 1; pointer-events: auto; }
      .nav ul { flex-direction: column; gap: 0; }
      .nav ul li { border-bottom: 1px solid var(--line); }
      .nav a:not(.btn-nav) { display: block; padding: 14px 0; font-size: .92rem; }
      .btn-nav { display: inline-block; margin: 16px 0 0; }
      body { padding-bottom: 72px; }
      .sticky-cta { display: flex; gap: 10px; }
      .instructor-grid { grid-template-columns: 1fr; gap: 20px; }
    }