/* =========================================================
   Talkport オンラインサイン会 LP — rebuild v1 (monochrome)
   白黒ベース・ミニマル。装飾より余白とタイポグラフィで魅せる。
   ========================================================= */

:root {
  --black: #111111;
  --ink: #1a1a1a;
  --text: #222222;
  --text-sub: #666666;
  --text-faint: #999999;
  --line: #e5e5e5;
  --line-dark: #d4d4d4;
  --bg: #ffffff;
  --bg-soft: #f7f7f7;
  --radius: 10px;
  --font: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic UI", "Noto Sans JP", Meiryo, system-ui, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.85;
  font-feature-settings: "palt";
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

.container { width: min(1080px, 90%); margin-inline: auto; }
.container.narrow { width: min(780px, 90%); }
.center { text-align: center; }
.pc { display: inline; }
.sp { display: none; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  font-weight: 700; border: 0; cursor: pointer;
  border-radius: 6px;
  transition: background .2s ease, color .2s ease, border-color .2s ease, opacity .2s ease;
  font-family: inherit; letter-spacing: .04em;
}
.btn-primary {
  background: var(--black); color: #fff;
  padding: 16px 40px; font-size: 15px;
}
.btn-primary:hover { background: #333; }
.btn-lg { padding: 19px 52px; font-size: 16px; }
.btn-block { width: 100%; }
.btn-ghost {
  color: var(--black); padding: 16px 36px; font-size: 15px;
  border: 1px solid var(--black); background: transparent;
}
.btn-ghost:hover { background: var(--black); color: #fff; }
.btn-secondary {
  background: #fff; color: var(--black);
  border: 1px solid var(--black);
  padding: 13px 36px; font-size: 14px;
}
.btn-secondary:hover { background: var(--black); color: #fff; }
.btn-header { background: var(--black); color: #fff; padding: 10px 26px; font-size: 13px; }
.btn-header:hover { background: #333; }
.text-link {
  color: var(--black); font-weight: 700;
  border-bottom: 1px solid var(--black);
  padding-bottom: 2px;
  transition: opacity .2s;
}
.text-link:hover { opacity: .6; }

:focus-visible { outline: 2px solid var(--black); outline-offset: 2px; }

/* ---------- Header ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header.scrolled { box-shadow: 0 1px 12px rgba(0,0,0,.05); }
.header-inner {
  width: min(1160px, 94%); margin-inline: auto;
  display: flex; align-items: center; gap: 28px;
  height: 64px;
}
.logo { font-size: 20px; font-weight: 900; letter-spacing: .02em; color: var(--black); }
.logo span { font-weight: 300; }
.global-nav { display: flex; gap: clamp(14px, 1.9vw, 26px); margin-left: auto; }
.global-nav a {
  font-size: 13px; font-weight: 600; color: var(--text-sub);
  transition: color .2s;
}
.global-nav a:hover { color: var(--black); }

/* ---------- Hero ---------- */
.hero {
  background: var(--bg);
  padding: 170px 0 90px;
  border-bottom: 1px solid var(--line);
}
.hero-inner { width: min(920px, 90%); margin-inline: auto; text-align: center; }
.eyebrow {
  display: inline-block; font-size: 12.5px; font-weight: 700; letter-spacing: .14em;
  color: var(--text-sub);
  border: 1px solid var(--line-dark);
  padding: 7px 22px; border-radius: 999px;
  margin-bottom: 34px;
  background: #fff;
}
.hero h1 {
  font-size: clamp(34px, 4.6vw, 52px);
  font-weight: 900; line-height: 1.35; letter-spacing: .02em;
  color: var(--black);
  margin-bottom: 28px;
  text-wrap: balance;
}
.hero-lead {
  font-size: clamp(15px, 1.6vw, 17px); color: var(--text-sub);
  margin-bottom: 40px;
}
.hero-lead strong { color: var(--black); font-weight: 700; }
.hero-sub { margin: -22px 0 36px; font-size: 13.5px; }
.hero-sub a {
  color: var(--text-sub); font-weight: 600;
  border-bottom: 1px solid var(--line-dark); padding-bottom: 2px;
  transition: color .2s, border-color .2s;
}
.hero-sub a:hover { color: var(--black); border-color: var(--black); }
.hero-cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-bottom: 16px; }
.hero-note { font-size: 12.5px; color: var(--text-faint); margin-bottom: 20px; }
.hero-trust {
  font-size: 11.5px; color: var(--text-faint); letter-spacing: .05em;
  margin-bottom: 56px;
}

.stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--black);
  border-bottom: 1px solid var(--black);
  padding: 34px 0;
}
.stat { text-align: center; padding: 4px 12px; }
.stat + .stat { border-left: 1px solid var(--line); }
.stat-num {
  font-size: clamp(28px, 3.4vw, 42px); font-weight: 900; line-height: 1.15;
  color: var(--black);
  font-variant-numeric: tabular-nums;
}
.stat-unit { font-size: .5em; margin-left: 2px; font-weight: 700; }
.stat-label { font-size: 12px; color: var(--text-sub); margin-top: 8px; font-weight: 500; }
.stats-footnote { font-size: 11px; color: var(--text-faint); margin-top: 14px; }

/* ---------- Sections base ---------- */
.section { padding: 110px 0; }
.section-eyebrow {
  font-size: 12px; font-weight: 700; letter-spacing: .26em;
  color: var(--text-faint); margin-bottom: 16px;
}
.section-eyebrow.light { color: #888; }
.section h2 {
  font-size: clamp(26px, 3.4vw, 38px);
  font-weight: 900; line-height: 1.45; letter-spacing: .02em;
  margin-bottom: 22px; color: var(--black);
  text-wrap: balance;
}
.section-lead { font-size: 15.5px; color: var(--text-sub); margin-bottom: 60px; max-width: 720px; }
.section-lead.light { color: #aaa; }
.fine-note { font-size: 12px; color: var(--text-faint); margin-top: 24px; line-height: 1.7; }

/* ---------- Proof ---------- */
.proof { background: var(--bg-soft); border-bottom: 1px solid var(--line); }
.proof-cards { display: grid; grid-template-columns: 1.2fr 1fr 1fr; gap: 16px; align-items: stretch; }
.proof-card {
  background: #fff; border-radius: var(--radius); padding: 36px 32px;
  border: 1px solid var(--line);
  transition: border-color .25s ease;
}
.proof-card:hover { border-color: var(--black); }
.proof-card.featured { background: var(--black); color: #fff; border-color: var(--black); }
.proof-tag {
  display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: .06em;
  padding: 5px 14px; border-radius: 999px;
  border: 1px solid var(--line-dark); color: var(--text-sub);
  margin-bottom: 24px;
}
.proof-card.featured .proof-tag { border-color: #555; color: #ccc; }
.proof-value { line-height: 1; margin-bottom: 18px; }
.proof-num {
  font-size: clamp(46px, 5vw, 66px); font-weight: 900;
  color: var(--black);
  font-variant-numeric: tabular-nums; letter-spacing: -.01em;
}
.proof-card.featured .proof-num { color: #fff; }
.proof-unit { font-size: 19px; font-weight: 800; margin-left: 4px; color: var(--black); }
.proof-card.featured .proof-unit { color: #fff; }
.proof-title { font-size: 16px; font-weight: 800; margin-bottom: 14px; }
.proof-meta li {
  font-size: 13px; color: var(--text-sub); padding: 4px 0 4px 16px; position: relative;
}
.proof-card.featured .proof-meta li { color: #aaa; }
.proof-meta li::before {
  content: ""; position: absolute; left: 0; top: 14px;
  width: 6px; height: 1px; background: currentColor;
}
.proof .center { margin-top: 40px; }

/* ---------- Route ---------- */
.route-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 24px; }
.route-card {
  border-radius: var(--radius); padding: 42px 38px;
  background: #fff; border: 1px solid var(--line);
  transition: border-color .25s ease;
  display: flex; flex-direction: column;
}
.route-card:hover { border-color: var(--black); }
.route-badge {
  display: inline-block; align-self: flex-start;
  font-size: 11px; font-weight: 800; letter-spacing: .16em;
  padding: 5px 14px; margin-bottom: 22px;
  border: 1px solid var(--black); color: var(--black);
}
.badge-a, .badge-b { background: transparent; }
.route-card h3 { font-size: 23px; font-weight: 900; margin-bottom: 14px; color: var(--black); }
.route-desc { font-size: 14px; color: var(--text-sub); margin-bottom: 24px; }
.route-points { margin-bottom: 26px; }
.route-points li {
  font-size: 13.5px; font-weight: 600; padding: 9px 0 9px 26px; position: relative;
  border-bottom: 1px solid var(--line);
}
.route-points li::before {
  content: "✓"; position: absolute; left: 2px; top: 9px;
  color: var(--black); font-weight: 900;
}
.route-result {
  margin-top: auto; font-size: 13px; font-weight: 700; color: var(--black);
  border-left: 3px solid var(--black);
  padding: 6px 0 6px 16px;
}
.route-undecided {
  display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap;
  border: 1px dashed var(--line-dark);
  border-radius: var(--radius); padding: 28px 34px;
  background: var(--bg-soft);
}
.route-undecided p { font-size: 14.5px; }

/* ---------- Service ---------- */
.service { background: var(--black); color: #fff; }
.service h2 { color: #fff; }
.service .section-lead { color: #999; }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: #333; border: 1px solid #333; }
.service-card {
  background: var(--black);
  padding: 36px 30px;
  transition: background .25s ease;
}
.service-card:hover { background: #1d1d1d; }
.service-icon {
  font-size: 13px; font-weight: 800; letter-spacing: .1em;
  color: #777; margin-bottom: 18px;
  font-variant-numeric: tabular-nums;
}
.service-card h3 {
  font-size: 17px; font-weight: 800; margin-bottom: 12px;
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
}
.service-sub {
  font-size: 10px; font-weight: 700; letter-spacing: .08em;
  padding: 3px 10px;
  border: 1px solid #555; color: #bbb;
}
.service-card p { font-size: 13px; color: #999; }

/* ---------- Flow ---------- */
.timeline { max-width: 740px; margin-bottom: 80px; position: relative; }
.timeline::before {
  content: ""; position: absolute; left: 25px; top: 16px; bottom: 16px;
  width: 1px; background: var(--line-dark);
}
.timeline li { display: flex; gap: 28px; padding: 14px 0; position: relative; }
.tl-num {
  flex: 0 0 52px; height: 52px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: #fff; border: 1px solid var(--black);
  font-weight: 800; font-size: 13px; color: var(--black);
  position: relative; z-index: 1;
  font-variant-numeric: tabular-nums;
}
.timeline h3 { font-size: 16.5px; font-weight: 800; color: var(--black); margin-bottom: 4px; padding-top: 11px; }
.timeline p { font-size: 13.5px; color: var(--text-sub); }
.raci h3 { font-size: 19px; font-weight: 900; color: var(--black); margin-bottom: 18px; }
.raci-table-wrap { overflow-x: auto; border: 1px solid var(--line-dark); border-radius: var(--radius); }
.raci-table { width: 100%; border-collapse: collapse; background: #fff; min-width: 560px; }
.raci-table th, .raci-table td { padding: 14px 22px; font-size: 13.5px; text-align: left; border-bottom: 1px solid var(--line); }
.raci-table thead th { background: var(--black); color: #fff; font-weight: 700; font-size: 12.5px; letter-spacing: .04em; }
.raci-table tbody tr:last-child td { border-bottom: 0; }
.raci-table td:first-child { font-weight: 700; color: var(--black); white-space: nowrap; }

/* ---------- Price ---------- */
.price { background: var(--bg-soft); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.price-wrap { display: grid; grid-template-columns: 1fr 1.3fr; gap: 16px; margin-bottom: 48px; align-items: stretch; }
.price-card {
  background: var(--black); color: #fff;
  border-radius: var(--radius);
  padding: 50px 40px; text-align: center;
  display: flex; flex-direction: column; justify-content: center;
}
.price-label { font-size: 12px; font-weight: 700; letter-spacing: .2em; color: #999; margin-bottom: 12px; }
.price-value {
  font-size: 110px; font-weight: 900; line-height: 1; color: #fff;
  font-variant-numeric: tabular-nums; letter-spacing: -.02em;
}
.price-value span { font-size: .34em; font-weight: 800; }
.price-target { font-size: 14px; font-weight: 700; color: #ccc; margin: 10px 0 30px; }
.price-example {
  border: 1px solid #444;
  border-radius: 8px; padding: 16px 20px; font-size: 13px; color: #aaa;
}
.price-example strong { color: #fff; font-size: 1.15em; }
.price-calc { margin-top: 4px; font-size: 14px; }
.price-terms {
  background: #fff; border-radius: var(--radius); border: 1px solid var(--line);
  padding: 40px 42px;
}
.price-terms h3 { font-size: 18px; font-weight: 900; color: var(--black); margin-bottom: 20px; }
.terms-list div {
  display: flex; gap: 20px; padding: 13px 0; border-bottom: 1px solid var(--line);
  font-size: 13.5px;
}
.terms-list div:last-child { border-bottom: 0; }
.terms-list dt { flex: 0 0 104px; font-weight: 800; color: var(--black); }
.terms-list dd { color: var(--text-sub); }

/* ---------- Cases ---------- */
.case-filter { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 36px; }
.chip {
  font-family: inherit; font-size: 12.5px; font-weight: 700; cursor: pointer;
  padding: 9px 22px; border-radius: 999px;
  border: 1px solid var(--line-dark); background: #fff; color: var(--text-sub);
  transition: all .2s ease;
}
.chip:hover { border-color: var(--black); color: var(--black); }
.chip.active { background: var(--black); border-color: var(--black); color: #fff; }
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.case-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 26px;
  transition: border-color .25s ease;
}
.case-card:hover { border-color: var(--black); }
.case-card.hide { display: none; }
.case-tag {
  display: inline-block; font-size: 10.5px; font-weight: 700; letter-spacing: .04em;
  padding: 4px 12px; border-radius: 999px; margin-bottom: 16px;
  border: 1px solid var(--line-dark); color: var(--text-sub);
}
.tag-talk, .tag-lottery, .tag-sign, .tag-program { background: transparent; }
.case-card h3 { font-size: 15px; font-weight: 800; color: var(--black); margin-bottom: 8px; }
.case-highlight {
  font-size: 27px; font-weight: 900; line-height: 1.2; margin-bottom: 14px;
  color: var(--black);
  font-variant-numeric: tabular-nums;
}
.case-highlight span { font-size: 13px; color: var(--text-sub); font-weight: 600; }
.case-card ul li { font-size: 12.5px; color: var(--text-sub); padding: 3px 0 3px 14px; position: relative; }
.case-card ul li::before { content: ""; position: absolute; left: 0; top: 13px; width: 6px; height: 1px; background: var(--text-sub); }

/* ---------- Consultation ---------- */
.consult { background: var(--black); color: #fff; }
.consult-inner { display: grid; grid-template-columns: 1.1fr 1fr; gap: 70px; align-items: center; }
.consult h2 { color: #fff; }
.consult-lead { font-size: 15px; color: #999; margin-bottom: 38px; }
.consult .btn-primary { background: #fff; color: var(--black); }
.consult .btn-primary:hover { background: #e5e5e5; }
.consult-checklist { border-top: 1px solid #333; }
.consult-checklist li {
  font-size: 14.5px; font-weight: 600; padding: 15px 0 15px 36px; position: relative;
  border-bottom: 1px solid #333;
}
.consult-checklist li::before {
  content: "✓"; position: absolute; left: 2px; top: 14px;
  color: #fff; font-size: 15px; font-weight: 900;
}

/* ---------- Fit block ---------- */
.fit-block {
  display: grid; grid-template-columns: 1.2fr 1fr; gap: 0;
  border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; margin-bottom: 90px;
}
.fit-col { padding: 34px 34px; background: #fff; }
.fit-col + .fit-col { border-left: 1px solid var(--line); background: var(--bg-soft); }
.fit-col h3 { font-size: 15.5px; font-weight: 900; color: var(--black); margin-bottom: 16px; }
.fit-col li {
  font-size: 13.5px; color: var(--text); font-weight: 500;
  padding: 8px 0 8px 26px; position: relative;
  border-bottom: 1px solid var(--line);
}
.fit-col li:last-child { border-bottom: 0; }
.fit-col:first-child li::before {
  content: "✓"; position: absolute; left: 2px; top: 8px;
  color: var(--black); font-weight: 900;
}
.fit-col + .fit-col li::before {
  content: "—"; position: absolute; left: 2px; top: 8px;
  color: var(--text-faint); font-weight: 700;
}

/* ---------- FAQ ---------- */
.faq-list details {
  background: #fff; border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.faq-list details:first-child { border-top: 1px solid var(--line); }
.faq-list summary {
  cursor: pointer; list-style: none;
  padding: 24px 56px 24px 4px; font-size: 15.5px; font-weight: 700; color: var(--black);
  position: relative; user-select: none;
  transition: opacity .2s;
}
.faq-list summary:hover { opacity: .65; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after {
  content: "+"; position: absolute; right: 8px; top: 50%; transform: translateY(-50%);
  font-size: 22px; font-weight: 300; color: var(--black);
  transition: transform .25s ease;
}
.faq-list details[open] summary::after { content: "−"; }
.faq-list details p { padding: 0 40px 26px 4px; font-size: 14px; color: var(--text-sub); }

/* ---------- Contact ---------- */
.contact { background: var(--bg-soft); border-top: 1px solid var(--line); }
.contact h2 { color: var(--black); }
.contact .section-eyebrow.light { color: var(--text-faint); }
.contact .section-lead.light { color: var(--text-sub); }
.steps-mini {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  border: 1px solid var(--line); border-radius: var(--radius);
  background: #fff; overflow: hidden;
  margin-bottom: 28px;
  counter-reset: none;
}
.steps-mini li {
  padding: 18px 18px; font-size: 12.5px; font-weight: 600; color: var(--text);
  line-height: 1.6;
}
.steps-mini li + li { border-left: 1px solid var(--line); }
.steps-mini li span {
  display: block; font-size: 11px; font-weight: 800; letter-spacing: .1em;
  color: var(--text-faint); margin-bottom: 6px;
  font-variant-numeric: tabular-nums;
}
.contact-form {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 48px 46px;
  color: var(--text);
}
.form-trust {
  text-align: center; font-size: 11.5px; color: var(--text-faint);
  margin-top: 10px; letter-spacing: .02em;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-field { margin-bottom: 22px; }
.form-field label {
  display: flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 700; color: var(--black); margin-bottom: 8px;
}
.req {
  font-size: 10px; font-weight: 700; color: #fff;
  background: var(--black); border-radius: 4px; padding: 2px 8px;
}
.form-field input[type="text"],
.form-field input[type="email"],
.form-field select,
.form-field textarea {
  width: 100%; font-family: inherit; font-size: 15px;
  padding: 13px 16px; border-radius: 6px;
  border: 1px solid var(--line-dark); background: #fff;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  outline: none; border-color: var(--black);
  box-shadow: 0 0 0 3px rgba(0,0,0,.08);
}
.form-field input.invalid, .form-field textarea.invalid { border-color: #c0392b; background: #fdf6f5; }
.form-field textarea { resize: vertical; }
.honeypot { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }
.form-consent { margin: 4px 0 22px; }
.form-consent label { display: flex; align-items: flex-start; gap: 10px; font-size: 13.5px; cursor: pointer; }
.form-consent input { width: 17px; height: 17px; margin-top: 4px; accent-color: var(--black); }
.form-consent a { color: var(--black); text-decoration: underline; }
.form-error {
  border: 1px solid #e0b4ae; background: #fdf6f5; color: #a93226;
  font-size: 13px; font-weight: 600;
  border-radius: 6px; padding: 14px 18px; margin-bottom: 18px;
}
.form-note { text-align: center; font-size: 12px; color: var(--text-faint); margin-top: 16px; }
.form-success {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 76px 40px; text-align: center;
  color: var(--text);
}
.success-icon {
  width: 60px; height: 60px; border-radius: 50%; margin: 0 auto 24px;
  background: var(--black); color: #fff; font-size: 26px; font-weight: 900;
  display: flex; align-items: center; justify-content: center;
}
.form-success h3 { font-size: 21px; font-weight: 900; color: var(--black); margin-bottom: 12px; }
.form-success p { font-size: 14px; color: var(--text-sub); }

/* ---------- P.S. band ---------- */
.ps-band {
  padding: 76px 0;
  background: var(--bg);
  border-top: 1px solid var(--line);
  text-align: center;
}
.ps-text {
  font-size: 17.5px; font-weight: 800; color: var(--black);
  line-height: 2; margin-bottom: 26px;
  text-wrap: balance;
}
@media (max-width: 679px) {
  .ps-band { padding: 56px 0; }
  .ps-text { font-size: 15.5px; }
  .ps-band .btn { width: 100%; }
}

/* ---------- Footer ---------- */
.site-footer { background: var(--black); color: #999; padding: 64px 0 32px; }
.footer-inner { display: flex; justify-content: space-between; gap: 40px; flex-wrap: wrap; margin-bottom: 44px; }
.site-footer .logo { color: #fff; margin-bottom: 16px; }
.footer-company { font-size: 12.5px; line-height: 2; }
.footer-nav { display: flex; gap: 26px; align-items: flex-start; flex-wrap: wrap; }
.footer-nav a { font-size: 13px; transition: color .2s; }
.footer-nav a:hover { color: #fff; }
.copyright {
  text-align: center; font-size: 11.5px; color: #666;
  border-top: 1px solid #2e2e2e; padding-top: 28px;
  width: min(1080px, 90%); margin-inline: auto;
}

/* ---------- Mobile CTA ---------- */
.mobile-cta {
  position: fixed; inset: auto 0 0 0; z-index: 90;
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
  background: rgba(255,255,255,.95); backdrop-filter: blur(10px);
  border-top: 1px solid var(--line);
  transform: translateY(110%); transition: transform .35s ease;
  display: none;
}
.mobile-cta.show { transform: translateY(0); }

/* ---------- Reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: .08s; }
.delay-2 { transition-delay: .16s; }
.delay-3 { transition-delay: .24s; }
.delay-4 { transition-delay: .32s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1023px) {
  .global-nav { display: none; }
  .proof-cards { grid-template-columns: 1fr 1fr; }
  .proof-card.featured { grid-column: 1 / -1; }
  .service-grid { grid-template-columns: 1fr 1fr; }
  .case-grid { grid-template-columns: 1fr 1fr; }
  .consult-inner { grid-template-columns: 1fr; gap: 44px; }
  .price-wrap { grid-template-columns: 1fr; }
}
@media (max-width: 679px) {
  .pc { display: none; }
  .sp { display: inline; }
  .section { padding: 76px 0; }
  .hero { padding: 124px 0 64px; }
  .hero h1 { font-size: 27px; letter-spacing: 0; }
  .hero-cta .btn { width: 100%; }
  .stats { grid-template-columns: 1fr 1fr; gap: 20px 0; padding: 26px 0; }
  .stat + .stat { border-left: 0; }
  .stat:nth-child(even) { border-left: 1px solid var(--line); }
  .proof-cards { grid-template-columns: 1fr; }
  .route-cards { grid-template-columns: 1fr; }
  .route-undecided { flex-direction: column; align-items: stretch; text-align: center; }
  .service-grid { grid-template-columns: 1fr; }
  .case-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .contact-form { padding: 34px 22px; }
  .steps-mini { grid-template-columns: 1fr 1fr; }
  .steps-mini li + li { border-left: 0; }
  .steps-mini li:nth-child(even) { border-left: 1px solid var(--line); }
  .steps-mini li:nth-child(n+3) { border-top: 1px solid var(--line); }
  .fit-block { grid-template-columns: 1fr; margin-bottom: 64px; }
  .fit-col + .fit-col { border-left: 0; border-top: 1px solid var(--line); }
  .price-value { font-size: 88px; }
  .price-terms { padding: 30px 24px; }
  .timeline li { gap: 18px; }
  .tl-num { flex: 0 0 44px; height: 44px; font-size: 12px; }
  .timeline::before { left: 22px; }
  .mobile-cta { display: block; }
}

/* ---------- Form status (production submission module) ---------- */
.form-status { display: none; }
.form-status.is-visible {
  display: block;
  border-radius: 6px; padding: 14px 18px; margin-bottom: 18px;
  font-size: 13px; font-weight: 600;
  border: 1px solid var(--line-dark); background: var(--bg-soft); color: var(--text);
}
.form-status.is-error { border-color: #e0b4ae; background: #fdf6f5; color: #a93226; }
.form-status.is-warning { border-color: var(--line-dark); background: var(--bg-soft); color: var(--text); }
.form-status.is-unknown { border-color: var(--line-dark); background: var(--bg-soft); color: var(--text); }
.form-status:focus { outline: 2px solid var(--black); outline-offset: 2px; }
.field.invalid input, .field.invalid select, .field.invalid textarea { border-color: #c0392b; background: #fdf6f5; }
.form-consent.field.invalid label { color: #a93226; }

/* ---------- Hero badges ---------- */
.hero-badges {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 8px;
  margin: -16px 0 30px;
}
.hero-badges span {
  display: inline-block;
  font-size: 12px; font-weight: 700; letter-spacing: .06em;
  color: var(--black);
  border: 1px solid var(--black); border-radius: 4px;
  padding: 6px 18px;
}

/* ---------- Case guide ---------- */
.case-guide {
  font-size: 14px; font-weight: 700; color: var(--black);
  margin: -44px 0 22px;
}

/* ---------- Why (他社との違い) ---------- */
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.why-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 38px 32px;
  transition: border-color .25s ease;
}
.why-card:hover { border-color: var(--black); }
.why-label {
  display: inline-block; font-size: 11px; font-weight: 800; letter-spacing: .18em;
  color: var(--text-faint); margin-bottom: 16px;
  border-bottom: 2px solid var(--black); padding-bottom: 4px;
}
.why-card h3 { font-size: 21px; font-weight: 900; line-height: 1.5; color: var(--black); margin-bottom: 12px; }
.why-card p { font-size: 13.5px; color: var(--text-sub); }

/* ---------- RACI lead ---------- */
.raci-lead { font-size: 14.5px; font-weight: 700; color: var(--black); margin-bottom: 16px; }

/* ---------- Price zero badge ---------- */
.price-zero {
  display: inline-block; align-self: center;
  font-size: 13px; font-weight: 800; letter-spacing: .04em; color: #fff;
  border: 1px solid #444; border-radius: 999px;
  padding: 7px 18px;
  margin: -8px 0 24px;
}

/* ---------- Booking card (contact) ---------- */
.booking-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 36px 30px; text-align: center;
  margin-bottom: 8px;
}
.booking-title { font-size: 17px; font-weight: 900; color: var(--black); margin-bottom: 6px; }
.booking-desc { font-size: 13px; color: var(--text-sub); margin-bottom: 20px; }
.or-divider {
  display: flex; align-items: center; gap: 14px;
  margin: 26px 0 18px;
  color: var(--text-faint); font-size: 12.5px; font-weight: 700;
}
.or-divider::before, .or-divider::after { content: ""; flex: 1; height: 1px; background: var(--line-dark); }

/* ---------- Company ---------- */
.company { border-top: 1px solid var(--line); }
.company-table { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: #fff; }
.company-table div {
  display: flex; gap: 20px; padding: 14px 22px;
  border-bottom: 1px solid var(--line); font-size: 13.5px;
}
.company-table div:last-child { border-bottom: 0; }
.company-table dt { flex: 0 0 92px; font-weight: 800; color: var(--black); }
.company-table dd { color: var(--text-sub); }

@media (max-width: 679px) {
  .hero-badges { margin: -20px 0 26px; }
  .hero-badges span { font-size: 11px; padding: 5px 14px; }
  .case-guide { margin: -28px 0 18px; }
  .why-grid { grid-template-columns: 1fr; }
  .booking-card { padding: 28px 20px; }
  .booking-card .btn { width: 100%; }
  .company-table dt { flex-basis: 76px; }
}

/* ---------- Movie (実施イメージ) ---------- */
.movie { border-bottom: 1px solid var(--line); }
.movie-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.movie-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden;
  transition: border-color .25s ease;
}
.movie-card:hover { border-color: var(--black); }
.movie-embed { aspect-ratio: 16 / 9; background: var(--black); }
.movie-embed iframe { width: 100%; height: 100%; border: 0; display: block; }
.movie-card figcaption { padding: 18px 22px 20px; }
.movie-tag {
  display: inline-block; font-size: 10.5px; font-weight: 700; letter-spacing: .04em;
  padding: 4px 12px; border-radius: 999px; margin-bottom: 8px;
  border: 1px solid var(--line-dark); color: var(--text-sub);
}
.movie-title { font-size: 14.5px; font-weight: 800; color: var(--black); }

/* ---------- Company stats ---------- */
.company-stats {
  display: grid; grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--black); border-bottom: 1px solid var(--black);
  padding: 26px 0; margin-bottom: 8px;
}
.company-stats > div { text-align: center; }
.company-stats > div + div { border-left: 1px solid var(--line); }
.cs-num {
  display: block; font-size: 34px; font-weight: 900; color: var(--black);
  font-variant-numeric: tabular-nums; line-height: 1.2;
}
.cs-num small { font-size: .45em; font-weight: 700; margin-left: 2px; }
.cs-label { font-size: 12px; color: var(--text-sub); font-weight: 600; }
.cs-note { font-size: 11px; color: var(--text-faint); margin-bottom: 28px; }

@media (max-width: 679px) {
  .movie-grid { grid-template-columns: 1fr; }
  .cs-num { font-size: 28px; }
}

/* ---------- Sample placeholders (完売実績・事例ストーリー) ---------- */
.sample-tag {
  display: inline-block; font-size: 12px; font-weight: 800; color: var(--text);
  border: 1px dashed var(--text-sub); border-radius: 4px;
  padding: 4px 12px; margin-bottom: 14px;
}
.soldout-band.is-sample,
.story-card.is-sample { border-style: dashed; border-color: var(--text-sub); }
.soldout-band {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px 30px; margin-top: 28px;
}
.soldout-inner { display: flex; align-items: center; gap: 24px; }
.soldout-label {
  flex: 0 0 auto; font-size: 20px; font-weight: 900; letter-spacing: .08em;
  color: var(--text-sub); background: #fff; border: 1px dashed var(--black);
  padding: 10px 22px; border-radius: 6px;
}
.soldout-text { font-size: 15.5px; color: var(--text); }
.soldout-text strong { color: var(--black); font-weight: 800; }
.story-head { margin: 56px 0 18px; }
.story-head h3 { font-size: 20px; font-weight: 900; color: var(--black); margin-bottom: 10px; }
.story-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.story-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 30px 28px;
}
.story-card h4 { font-size: 16px; font-weight: 800; color: var(--black); line-height: 1.7; margin-bottom: 16px; }
.story-row {
  display: flex; align-items: baseline; gap: 12px;
  font-size: 13.5px; color: var(--text-sub); padding: 8px 0; border-top: 1px solid var(--line);
}
.story-row strong {
  flex: 0 0 74px;
  font-size: 11.5px; font-weight: 800; color: var(--black);
}
@media (max-width: 679px) {
  .soldout-inner { flex-direction: column; align-items: flex-start; gap: 14px; }
  .story-grid { grid-template-columns: 1fr; }
}

/* ---------- Mail fallback (フォーム廃止後の受け皿) ---------- */
.mail-fallback {
  text-align: center; font-size: 13.5px; color: var(--text-sub);
  margin-top: 26px; line-height: 2.1;
}
.mail-fallback a {
  color: var(--black); font-weight: 700;
  border-bottom: 1px solid var(--black); padding-bottom: 2px;
  transition: opacity .2s;
}
.mail-fallback a:hover { opacity: .6; }
.mail-fallback .mail-note { display: block; font-size: 12px; color: var(--text-sub); }
.mail-fallback a { display: inline-block; min-height: 44px; line-height: 44px; }

/* ---------- Highlight band (実データの単発ハイライト) ---------- */
.highlight-band {
  display: flex; align-items: flex-start; gap: 26px;
  background: #fff; border: 1px solid var(--black); border-radius: var(--radius);
  padding: 30px 32px; margin-top: 28px;
}
.hb-label {
  flex: 0 0 auto; font-size: 11px; font-weight: 800; letter-spacing: .12em;
  color: #fff; background: var(--black); padding: 6px 14px; border-radius: 4px;
  margin-top: 4px; white-space: nowrap;
}
.hb-body h3 { font-size: 18px; font-weight: 900; color: var(--black); line-height: 1.6; margin-bottom: 10px; }
.hb-body p { font-size: 14.5px; color: var(--text-sub); }
.hb-body strong { color: var(--black); font-weight: 800; }

/* ---------- Client roster (実名の実施先) ---------- */
.roster-band { margin-top: 20px; padding: 26px 30px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); }
.roster-head { font-size: 12px; font-weight: 800; letter-spacing: .1em; color: var(--text-sub); margin-bottom: 16px; }
.roster-list { display: flex; flex-wrap: wrap; gap: 10px; }
.roster-list li {
  font-size: 14.5px; font-weight: 800; color: var(--black);
  border: 1px solid var(--line-dark); border-radius: 999px; padding: 8px 20px;
}
.roster-list li a { border-bottom: 1px solid var(--line-dark); padding-bottom: 1px; transition: border-color .2s; }
.roster-list li a:hover { border-color: var(--black); }
.roster-note { font-size: 11.5px; color: var(--text-sub); margin-top: 14px; }

/* ---------- Formats (5つの実施方式) ---------- */
.formats { border-top: 1px solid var(--line); }
.format-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.format-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 32px 28px; transition: border-color .25s ease;
}
.format-card:hover { border-color: var(--black); }
.format-num { font-size: 12px; font-weight: 900; letter-spacing: .1em; color: var(--text-faint); margin-bottom: 16px; }
.format-card h3 { font-size: 16.5px; font-weight: 900; color: var(--black); line-height: 1.6; margin-bottom: 12px; }
.format-card p { font-size: 13.5px; color: var(--text-sub); }
.format-digital { grid-column: span 2; display: grid; grid-template-columns: 1fr 260px; gap: 26px; align-items: start; }
.format-digital .format-num, .format-digital h3, .format-digital p { grid-column: 1; }
.digital-figure { grid-column: 2; grid-row: 1 / span 3; }
.digital-ph {
  display: flex; align-items: center; justify-content: center;
  aspect-ratio: 4 / 3; border: 1px dashed var(--text-sub); border-radius: 6px;
  background: var(--bg-soft); color: var(--text-sub);
  font-size: 12.5px; font-weight: 700; text-align: center; padding: 12px;
}
.digital-figure .sample-tag { margin: 12px 0 0; }
.format-option {
  margin-top: 26px; padding: 20px 24px; background: var(--bg-soft);
  border-radius: var(--radius); font-size: 13.5px; color: var(--text-sub);
}
.format-option strong {
  display: inline-block; margin-right: 12px; font-size: 11.5px; font-weight: 800;
  color: var(--black); border: 1px solid var(--black); border-radius: 4px; padding: 2px 10px;
}

/* ---------- Purpose (実施の目的) ---------- */
.purpose { background: var(--bg-soft); border-top: 1px solid var(--line); }
.purpose-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.purpose-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 28px; }
.purpose-card h3 { font-size: 16px; font-weight: 900; color: var(--black); margin-bottom: 10px; }
.purpose-card p { font-size: 13.5px; color: var(--text-sub); }

@media (max-width: 979px) {
  .format-grid, .purpose-grid { grid-template-columns: 1fr 1fr; }
  .format-digital { grid-column: span 2; }
}
@media (max-width: 679px) {
  .highlight-band { flex-direction: column; gap: 14px; }
  .format-grid, .purpose-grid { grid-template-columns: 1fr; }
  .format-digital { grid-column: auto; grid-template-columns: 1fr; }
  .digital-figure { grid-column: 1; grid-row: auto; }
  .roster-list li { font-size: 13.5px; padding: 7px 16px; }
}

/* ---------- Records (公開実績一覧) ---------- */
.records-head { margin: 64px 0 18px; padding-top: 56px; border-top: 1px solid var(--line); }
.records-head h3 { font-size: 22px; font-weight: 900; color: var(--black); margin-bottom: 8px; }
.records-head p { font-size: 13.5px; color: var(--text-sub); }
.record-filter { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.record-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.record-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 24px 22px; display: flex; flex-direction: column;
  transition: border-color .25s ease;
}
.record-card:hover { border-color: var(--black); }
.record-card.is-hidden { display: none; }
.record-genre {
  display: inline-block; align-self: flex-start;
  font-size: 10.5px; font-weight: 800; letter-spacing: .04em; color: var(--text-sub);
  border: 1px solid var(--line-dark); border-radius: 999px; padding: 3px 10px; margin-bottom: 12px;
}
.record-card h4 { font-size: 16px; font-weight: 900; color: var(--black); line-height: 1.5; margin-bottom: 10px; }
.record-format { font-size: 12px; font-weight: 800; color: var(--black); margin-bottom: 8px; }
.record-note { font-size: 12.5px; color: var(--text-sub); line-height: 1.75; margin-bottom: 16px; }
.record-foot {
  margin-top: auto; padding-top: 12px; border-top: 1px solid var(--line);
  display: flex; align-items: center; justify-content: flex-end; gap: 10px;
}
.record-foot a {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 11.5px; font-weight: 700; color: var(--text-sub);
  border: 1px solid var(--line-dark); border-radius: 999px; padding: 5px 10px;
  white-space: nowrap; transition: color .2s, border-color .2s, background .2s;
}
.record-foot a::before { content: "✓"; font-weight: 900; color: var(--black); }
.record-foot a:hover { color: var(--black); border-color: var(--black); background: var(--bg-soft); }

/* ---------- Official record detail modal ---------- */
.evidence-modal {
  position: fixed; inset: 0; z-index: 300;
  display: grid; place-items: center; padding: 24px;
}
.evidence-modal[hidden] { display: none; }
.evidence-backdrop {
  position: absolute; inset: 0; width: 100%; height: 100%;
  border: 0; padding: 0; background: rgba(16, 17, 20, .62);
  cursor: default;
}
.evidence-dialog {
  position: relative; width: min(100%, 620px); max-height: min(88vh, 720px);
  overflow-y: auto; padding: 42px 44px 36px;
  background: #fff; border: 1px solid var(--line-dark); border-radius: 14px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, .24);
  outline: none;
}
.evidence-close {
  position: absolute; top: 14px; right: 16px;
  width: 38px; height: 38px; display: grid; place-items: center;
  border: 1px solid var(--line); border-radius: 50%; background: #fff;
  color: var(--black); font: inherit; font-size: 23px; line-height: 1;
  cursor: pointer; transition: border-color .2s, background .2s;
}
.evidence-close:hover { border-color: var(--black); background: var(--bg-soft); }
.evidence-eyebrow {
  margin-bottom: 16px; color: var(--text-faint);
  font-size: 10px; font-weight: 900; letter-spacing: .18em;
}
.evidence-status {
  display: inline-flex; align-items: center; gap: 6px;
  margin-bottom: 16px; padding: 6px 11px;
  border: 1px solid var(--line-dark); border-radius: 999px;
  color: var(--text-sub); font-size: 11.5px; font-weight: 800;
}
.evidence-status::before { content: "✓"; color: var(--black); }
.evidence-genre {
  margin-bottom: 7px; color: var(--text-sub);
  font-size: 11px; font-weight: 800; letter-spacing: .04em;
}
.evidence-dialog h2 {
  margin-bottom: 22px; padding-right: 34px;
  color: var(--black); font-size: clamp(24px, 4vw, 34px); line-height: 1.35;
}
.evidence-format {
  margin-bottom: 8px; color: var(--black); font-size: 14px; font-weight: 900;
}
.evidence-summary { color: var(--text-sub); font-size: 14px; line-height: 1.85; }
.evidence-source {
  margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line);
  color: var(--text-faint); font-size: 11px;
}
.evidence-actions {
  display: flex; align-items: center; gap: 18px; margin-top: 28px;
}
.evidence-actions .btn { flex: 0 0 auto; cursor: pointer; }
.evidence-external {
  color: var(--text-sub); font-size: 12px; font-weight: 700;
  border-bottom: 1px solid var(--line-dark); padding-bottom: 2px;
}
.evidence-external:hover { color: var(--black); border-color: var(--black); }
body.evidence-open { overflow: hidden; }

@media (max-width: 679px) {
  .evidence-modal { place-items: end center; padding: 0; }
  .evidence-dialog {
    width: 100%; max-height: 88vh; padding: 34px 22px 28px;
    border-radius: 16px 16px 0 0; border-bottom: 0;
  }
  .evidence-actions { align-items: stretch; flex-direction: column; gap: 16px; }
  .evidence-actions .btn { width: 100%; }
  .evidence-external { align-self: center; }
}

/* ---------- Prize block (賞別の内容) ---------- */
.prize-block { margin-top: 30px; padding: 30px 32px; background: var(--bg-soft); border-radius: var(--radius); }
.prize-block h3 { font-size: 18px; font-weight: 900; color: var(--black); margin-bottom: 8px; }
.prize-lead { font-size: 13.5px; color: var(--text-sub); margin-bottom: 20px; }
.prize-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.prize-card { background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 20px 22px; }
.prize-rank {
  font-size: 13px; font-weight: 900; letter-spacing: .06em; color: var(--black);
  border-bottom: 1px solid var(--black); display: inline-block; padding-bottom: 4px; margin-bottom: 12px;
}
.prize-card p:last-child { font-size: 13px; color: var(--text-sub); line-height: 1.75; }
.digital-figure.wide { margin-top: 20px; }
.digital-figure.wide .digital-ph { aspect-ratio: 16 / 7; }

@media (max-width: 979px) {
  .record-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 679px) {
  .record-grid, .prize-grid { grid-template-columns: 1fr; }
  .records-head { margin-top: 44px; padding-top: 40px; }
  .prize-block { padding: 24px 20px; }
}

/* ---------- Figure images (デジタルサイン見本) ---------- */
.digital-figure img {
  width: 100%; height: auto; border: 1px solid var(--line); border-radius: 8px;
}
.digital-figure figcaption {
  margin-top: 10px; font-size: 12px; color: var(--text-sub); line-height: 1.7;
}
.fig-note { display: block; font-size: 11px; color: var(--text-faint); }
.story-head p { font-size: 13.5px; color: var(--text-sub); }

/* ---------- Record list: collapse（全端末で既定9件表示・JS有効時のみ） ---------- */
.record-grid.is-collapsed .record-card:nth-child(n+10) { display: none; }
.record-more { display: none; margin-top: 22px; }
.record-grid.is-collapsed + .record-more { display: block; }

/* ---------- 追従目次: 現在地ハイライト（PC） ---------- */
.global-nav a {
  position: relative;
  padding-bottom: 4px;
}
.global-nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0;
  height: 2px; background: var(--black);
  transform: scaleX(0); transform-origin: left center;
  transition: transform .22s ease;
}
.global-nav a.is-current { color: var(--black); font-weight: 700; }
.global-nav a.is-current::after { transform: scaleX(1); }
@media (prefers-reduced-motion: reduce) {
  .global-nav a::after { transition: none; }
}

/* ---------- 追従目次: SPオーバーレイ ---------- */
/* ボタンは既定で非表示。app.js が開閉ハンドラを登録できた時だけ .has-toc が付いて現れる。
   JSが動かない環境で「押しても何も起きないボタン」を出さないため。 */
.toc-toggle { display: none; }
.toc-toggle-bars { display: inline-flex; flex-direction: column; justify-content: center; gap: 3px; width: 14px; }
.toc-toggle-bars i { display: block; height: 1.5px; background: var(--black); border-radius: 1px; }
.toc-toggle-label { font-size: 12px; font-weight: 700; letter-spacing: .04em; }

@media (max-width: 1023px) {
  .has-toc .toc-toggle {
    display: inline-flex; align-items: center; gap: 7px;
    margin-left: auto;
    background: #fff; border: 1px solid var(--line-dark); border-radius: 6px;
    color: var(--black); padding: 9px 14px; cursor: pointer;
    font-family: inherit; line-height: 1;
  }
  .has-toc .toc-toggle[aria-expanded="true"] { background: var(--black); color: #fff; border-color: var(--black); }
  .has-toc .toc-toggle[aria-expanded="true"] .toc-toggle-bars i { background: #fff; }
  .header-inner { gap: 12px; }
  .btn-header { padding: 10px 16px; font-size: 12px; }

  /* ナビをそのままオーバーレイの中身として使う（リンクを複製しない） */
  /* .site-header の backdrop-filter は fixed 子孫の包含ブロックを作るため、
     inset で画面全体に広げることができない（ヘッダー内に閉じ込められる）。
     ヘッダー下端（top:100%）を起点に、明示した高さでパネルを敷く。 */
  .global-nav.is-open {
    display: flex; flex-direction: column; gap: 0;
    position: fixed; top: 100%; left: 0; right: 0; z-index: 95;
    height: calc(100vh - 64px);
    height: calc(100dvh - 64px);
    margin: 0; padding: 4px 0 104px;
    background: #fff; overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  .global-nav.is-open a {
    font-size: 16px; font-weight: 700; color: var(--text);
    padding: 18px 5%; border-bottom: 1px solid var(--line);
  }
  .global-nav.is-open a::after { display: none; }
  .global-nav.is-open a.is-current { color: var(--black); background: var(--bg-soft); }
  .global-nav.is-open a.is-current::before {
    content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px; background: var(--black);
  }
}
body.toc-open { overflow: hidden; }