/* ===== Product / Sales page ===== */
.product-page { background: var(--bg-0); }

/* Breadcrumb */
.product-breadcrumb {
  max-width: 1180px;
  margin: 0 auto;
  padding: 24px 28px 0;
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--serif-jp);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-3);
}
.product-breadcrumb a { color: var(--ink-2); transition: color 0.3s; }
.product-breadcrumb a:hover { color: var(--accent); }
.product-breadcrumb .sep { color: var(--ink-4); }
.product-breadcrumb .current { color: var(--ink-0); }

/* Hero */
.product-hero {
  padding: 32px 28px 56px;
  background: var(--bg-0);
}
.product-hero-inner {
  max-width: 1180px;
  margin: 0 auto;
}
.product-hero-banner {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  background: var(--bg-1);
  aspect-ratio: 1000/525;
}
.product-hero-banner img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.product-hero-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  box-shadow: inset 0 0 80px rgba(0, 0, 0, 0.35);
}

.product-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  margin-top: 28px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
}
.product-meta-tag {
  font-family: var(--serif-jp);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--accent);
  border: 1px solid rgba(200, 168, 104, 0.4);
  padding: 4px 12px;
}
.product-meta-tag.solid {
  background: var(--accent);
  color: var(--bg-0);
  border-color: var(--accent);
}
.product-meta-stat {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  font-family: var(--serif-jp);
  font-size: 12px;
  color: var(--ink-2);
  letter-spacing: 0.06em;
}
.product-meta-stat strong {
  font-family: var(--serif-en);
  font-style: italic;
  font-weight: 500;
  font-size: 16px;
  color: var(--ink-0);
  letter-spacing: 0.05em;
}
.product-meta-spacer { flex: 1; }
.product-meta-share {
  display: flex;
  gap: 6px;
}
.product-meta-share a {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  color: var(--ink-2);
  transition: all 0.3s;
}
.product-meta-share a:hover { border-color: var(--accent); color: var(--accent); }
.product-meta-share svg { width: 14px; height: 14px; }

.product-headline {
  margin-top: 36px;
  font-family: var(--serif-jp);
  font-weight: 500;
  font-size: clamp(24px, 3.2vw, 36px);
  line-height: 1.55;
  letter-spacing: 0.05em;
  color: var(--ink-0);
  text-wrap: pretty;
  margin-bottom: 24px;
}
.product-headline em {
  font-style: normal;
  background: linear-gradient(to top, rgba(200, 168, 104, 0.22) 35%, transparent 35%);
  padding: 0 6px;
  color: var(--ink-0);
}
.product-sublead {
  font-family: var(--serif-jp);
  font-size: 15px;
  line-height: 2;
  color: var(--ink-1);
  letter-spacing: 0.05em;
  text-wrap: pretty;
  max-width: 820px;
}

/* Quick CTA bar (just below hero) */
.product-quick-cta {
  margin-top: 36px;
  padding: 24px 28px;
  background: var(--bg-1);
  border: 1px solid var(--line-strong);
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 24px;
}
.product-quick-cta-text {
  font-family: var(--serif-jp);
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-1);
  letter-spacing: 0.05em;
}
.product-quick-cta-text strong {
  color: var(--accent);
  font-weight: 500;
}
.product-quick-cta .cta { white-space: nowrap; }

/* Section */
.product-section {
  padding: 80px 28px;
}
.product-section.alt { background: var(--bg-1); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.product-section.dark-card { padding: 100px 28px; }
.product-section-inner {
  max-width: 880px;
  margin: 0 auto;
}
.product-section-inner.wide { max-width: 1080px; }

.product-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--accent);
  margin-bottom: 18px;
}
.product-eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--accent);
}
.product-eyebrow i { font-style: italic; }

.product-h2 {
  font-family: var(--serif-jp);
  font-weight: 500;
  font-size: clamp(24px, 3vw, 32px);
  line-height: 1.55;
  letter-spacing: 0.06em;
  color: var(--ink-0);
  margin: 0 0 32px;
  text-wrap: pretty;
}
.product-h2 em {
  font-style: normal;
  color: var(--accent);
}

.product-h3 {
  font-family: var(--serif-jp);
  font-weight: 500;
  font-size: 20px;
  line-height: 1.6;
  letter-spacing: 0.05em;
  color: var(--ink-0);
  margin: 32px 0 16px;
}

.product-prose p {
  font-family: var(--serif-jp);
  font-size: 15px;
  line-height: 2.2;
  color: var(--ink-1);
  letter-spacing: 0.05em;
  margin: 0 0 22px;
  text-wrap: pretty;
}
.product-prose p strong {
  font-weight: 500;
  color: var(--ink-0);
  background: linear-gradient(to top, rgba(200, 168, 104, 0.18) 35%, transparent 35%);
  padding: 0 4px;
}
.product-prose em {
  font-style: normal;
  color: var(--accent);
}

/* Benefits checklist */
.product-benefits {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.product-benefits li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  align-items: baseline;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  font-family: var(--serif-jp);
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-1);
  letter-spacing: 0.05em;
}
.product-benefits li:last-child { border-bottom: 1px solid var(--line); }
.product-benefits li::before {
  content: "✓";
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 14px;
  color: var(--accent);
}
.product-benefits li strong {
  font-weight: 500;
  color: var(--ink-0);
}

/* Spec table */
.product-table-wrap {
  margin: 24px 0;
  border: 1px solid var(--line);
  background: var(--bg-1);
  overflow: hidden;
}
.product-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--serif-jp);
}
.product-table th, .product-table td {
  padding: 14px 18px;
  text-align: left;
  font-size: 13px;
  letter-spacing: 0.04em;
  line-height: 1.7;
  color: var(--ink-1);
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.product-table tr:last-child td { border-bottom: 0; }
.product-table th {
  background: var(--bg-2);
  color: var(--accent);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.08em;
  width: 30%;
  border-right: 1px solid var(--line);
}
.product-table td strong {
  font-weight: 500;
  color: var(--ink-0);
}
.product-table.col-table th {
  width: auto;
  border-right: 0;
  text-align: center;
  border-bottom: 1px solid var(--line-strong);
}
.product-table.col-table td {
  text-align: left;
  font-size: 13px;
}
.product-table.col-table td.center { text-align: center; }
.product-table.col-table td.accent { color: var(--accent); font-weight: 500; }

/* Order plan flow */
.product-order-flow {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0;
  margin: 24px 0;
  border: 1px solid var(--line);
  background: var(--bg-1);
}
.product-order-flow .step {
  padding: 16px 14px;
  text-align: center;
  border-right: 1px solid var(--line);
  font-family: var(--serif-jp);
}
.product-order-flow .step:last-child { border-right: 0; }
.product-order-flow .step-no {
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 18px;
  color: var(--accent);
  display: block;
  margin-bottom: 4px;
}
.product-order-flow .step-label {
  font-size: 13px;
  color: var(--ink-0);
  font-weight: 500;
  letter-spacing: 0.04em;
  display: block;
  margin-bottom: 4px;
}
.product-order-flow .step-time {
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.06em;
}
.product-order-flow .step.highlight {
  background: rgba(200, 168, 104, 0.08);
}

/* Pattern cards */
.product-patterns {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 24px 0;
}
.product-pattern {
  padding: 24px;
  background: var(--bg-1);
  border: 1px solid var(--line);
  position: relative;
}
.product-pattern .no {
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.18em;
  margin-bottom: 8px;
  display: block;
}
.product-pattern h4 {
  font-family: var(--serif-jp);
  font-weight: 500;
  font-size: 16px;
  line-height: 1.55;
  color: var(--ink-0);
  letter-spacing: 0.05em;
  margin: 0 0 10px;
}
.product-pattern p {
  font-family: var(--serif-jp);
  font-size: 13px;
  line-height: 1.85;
  color: var(--ink-2);
  margin: 0;
  letter-spacing: 0.04em;
}

/* Mistake panels (やってはいけない) */
.product-mistakes {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 24px 0;
}
.product-mistake {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 24px;
  padding: 24px 0;
  border-top: 1px solid var(--line);
}
.product-mistake:last-child { border-bottom: 1px solid var(--line); }
.product-mistake-no {
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 28px;
  color: var(--ink-3);
  letter-spacing: 0.08em;
}
.product-mistake-body h4 {
  font-family: var(--serif-jp);
  font-weight: 500;
  font-size: 16px;
  color: var(--ink-0);
  margin: 0 0 8px;
  letter-spacing: 0.05em;
}
.product-mistake-body p {
  font-family: var(--serif-jp);
  font-size: 13px;
  line-height: 1.85;
  color: var(--ink-2);
  margin: 0;
  letter-spacing: 0.04em;
}
.product-mistake-body p strong {
  color: var(--accent);
  font-weight: 500;
}

/* Roadmap */
.product-roadmap {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 24px 0;
  border: 1px solid var(--line);
  background: var(--bg-1);
}
.product-roadmap-step {
  display: grid;
  grid-template-columns: 200px 1fr;
  padding: 24px 28px;
  border-bottom: 1px solid var(--line);
  align-items: start;
  gap: 24px;
}
.product-roadmap-step:last-child { border-bottom: 0; }
.product-roadmap-step-head {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.product-roadmap-step-no {
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--accent);
}
.product-roadmap-step-name {
  font-family: var(--serif-jp);
  font-weight: 500;
  font-size: 17px;
  color: var(--ink-0);
  letter-spacing: 0.05em;
}
.product-roadmap-step-period {
  font-family: var(--serif-jp);
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 0.06em;
  margin-top: 4px;
}
.product-roadmap-step ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.product-roadmap-step ul li {
  font-family: var(--serif-jp);
  font-size: 13px;
  line-height: 1.85;
  color: var(--ink-1);
  letter-spacing: 0.04em;
  padding-left: 16px;
  position: relative;
}
.product-roadmap-step ul li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* Manual contents (4 parts) */
.product-parts {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin: 24px 0;
}
.product-part {
  background: var(--bg-1);
  border: 1px solid var(--line);
  padding: 32px;
  position: relative;
  overflow: hidden;
}
.product-part::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 3px;
  height: 64px;
  background: var(--accent);
}
.product-part-head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}
.product-part-no {
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 14px;
  letter-spacing: 0.22em;
  color: var(--accent);
}
.product-part-icon {
  font-size: 22px;
}
.product-part-title {
  font-family: var(--serif-jp);
  font-weight: 500;
  font-size: 19px;
  line-height: 1.55;
  color: var(--ink-0);
  margin: 0;
  letter-spacing: 0.05em;
  flex: 1 1 240px;
}
.product-part-pages {
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.18em;
}
.product-part-lead {
  font-family: var(--serif-jp);
  font-size: 14px;
  line-height: 2;
  color: var(--ink-1);
  letter-spacing: 0.05em;
  margin: 0 0 16px;
  text-wrap: pretty;
}
.product-part-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 24px;
}
.product-part-list li {
  font-family: var(--serif-jp);
  font-size: 13px;
  line-height: 1.85;
  color: var(--ink-1);
  letter-spacing: 0.04em;
  padding-left: 16px;
  position: relative;
}
.product-part-list li::before {
  content: "·";
  position: absolute;
  left: 4px;
  color: var(--accent);
  font-weight: 700;
}
.product-part-list li strong {
  font-weight: 500;
  color: var(--ink-0);
}

/* Bonus card */
.product-bonus {
  margin: 32px 0;
  padding: 40px;
  background: linear-gradient(135deg, var(--bg-2), var(--bg-1));
  border: 1px solid var(--accent);
  position: relative;
}
.product-bonus::before {
  content: "";
  position: absolute;
  inset: 6px;
  border: 1px solid rgba(200, 168, 104, 0.18);
  pointer-events: none;
}
.product-bonus-eyebrow {
  display: inline-block;
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--bg-0);
  background: var(--accent);
  padding: 4px 12px;
  margin-bottom: 16px;
}
.product-bonus-title {
  font-family: var(--serif-jp);
  font-weight: 500;
  font-size: 22px;
  line-height: 1.55;
  color: var(--ink-0);
  letter-spacing: 0.05em;
  margin: 0 0 18px;
  text-wrap: pretty;
}
.product-bonus-title em { font-style: normal; color: var(--accent); }
.product-bonus p {
  font-family: var(--serif-jp);
  font-size: 14px;
  line-height: 2;
  color: var(--ink-1);
  letter-spacing: 0.05em;
  margin: 0 0 16px;
}
.product-bonus ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.product-bonus ul li {
  font-family: var(--serif-jp);
  font-size: 13px;
  line-height: 1.85;
  color: var(--ink-1);
  letter-spacing: 0.04em;
  padding-left: 18px;
  position: relative;
}
.product-bonus ul li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* Pricing card */
.product-pricing {
  margin: 32px 0 24px;
  padding: 48px 40px;
  background: var(--bg-1);
  border: 1px solid var(--line-strong);
  position: relative;
}
.product-pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border: 1px solid var(--line);
}
.product-pricing-cell {
  padding: 28px;
}
.product-pricing-cell + .product-pricing-cell { border-left: 1px solid var(--line); }
.product-pricing-cell.early {
  background: rgba(200, 168, 104, 0.05);
  border-top: 2px solid var(--accent);
}
.product-pricing-label {
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--ink-3);
  margin-bottom: 8px;
  display: block;
}
.product-pricing-cell.early .product-pricing-label { color: var(--accent); }
.product-pricing-tag {
  font-family: var(--serif-jp);
  font-size: 12px;
  color: var(--ink-2);
  letter-spacing: 0.06em;
  margin-bottom: 14px;
  display: block;
}
.product-pricing-amount {
  font-family: var(--serif-en);
  font-style: italic;
  font-weight: 500;
  font-size: clamp(36px, 5vw, 52px);
  line-height: 1;
  color: var(--ink-0);
  letter-spacing: 0.02em;
  margin-bottom: 6px;
}
.product-pricing-cell.early .product-pricing-amount { color: var(--accent); }
.product-pricing-amount .yen {
  font-style: normal;
  font-size: 0.55em;
  margin-right: 4px;
  color: var(--ink-2);
}
.product-pricing-amount .tax {
  font-style: normal;
  font-size: 0.32em;
  color: var(--ink-3);
  margin-left: 8px;
  letter-spacing: 0.04em;
}
.product-pricing-deadline {
  font-family: var(--serif-jp);
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: 0.06em;
}
.product-pricing-cell.early .product-pricing-deadline { color: var(--ink-1); }

.product-pricing-compare {
  margin-top: 32px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}
.product-pricing-compare h4 {
  font-family: var(--serif-jp);
  font-weight: 500;
  font-size: 14px;
  color: var(--ink-0);
  letter-spacing: 0.06em;
  margin: 0 0 16px;
}
.product-pricing-compare ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.product-pricing-compare li {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  font-family: var(--serif-jp);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ink-1);
  align-items: baseline;
}
.product-pricing-compare li:last-child { border-bottom: 0; }
.product-pricing-compare li strong {
  font-family: var(--serif-en);
  font-style: italic;
  font-weight: 500;
  font-size: 16px;
  color: var(--ink-0);
  letter-spacing: 0.02em;
}
.product-pricing-compare li.ours strong { color: var(--accent); }

/* Recommendation grid */
.product-rec-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 24px 0;
}
.product-rec {
  background: var(--bg-1);
  border: 1px solid var(--line);
  padding: 28px;
}
.product-rec h4 {
  font-family: var(--serif-jp);
  font-weight: 500;
  font-size: 15px;
  color: var(--ink-0);
  letter-spacing: 0.06em;
  margin: 0 0 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
}
.product-rec.recommend h4 { color: var(--accent); }
.product-rec ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.product-rec li {
  font-family: var(--serif-jp);
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-1);
  letter-spacing: 0.04em;
  padding-left: 22px;
  position: relative;
}
.product-rec.recommend li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-family: var(--serif-en);
  font-style: italic;
}
.product-rec.notrec li::before {
  content: "×";
  position: absolute;
  left: 0;
  color: var(--ink-3);
}

/* FAQ accordion */
.product-faq {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin: 24px 0;
  border-top: 1px solid var(--line);
}
.product-faq-item {
  border-bottom: 1px solid var(--line);
}
.product-faq-q {
  width: 100%;
  background: transparent;
  border: 0;
  padding: 22px 0;
  display: grid;
  grid-template-columns: 28px 1fr 24px;
  gap: 16px;
  align-items: center;
  text-align: left;
  font-family: var(--serif-jp);
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-0);
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: color 0.3s;
}
.product-faq-q:hover { color: var(--accent); }
.product-faq-q .q-mark {
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 18px;
  color: var(--accent);
}
.product-faq-q .q-toggle {
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 20px;
  color: var(--ink-3);
  text-align: center;
  transition: transform 0.3s;
}
.product-faq-item.open .q-toggle { transform: rotate(45deg); color: var(--accent); }
.product-faq-a {
  display: none;
  padding: 0 0 22px 44px;
  font-family: var(--serif-jp);
  font-size: 14px;
  line-height: 2;
  color: var(--ink-1);
  letter-spacing: 0.05em;
}
.product-faq-item.open .product-faq-a { display: block; }
.product-faq-a strong { color: var(--ink-0); font-weight: 500; }

/* Big purchase CTA */
.product-purchase {
  padding: 80px 28px;
  background:
    radial-gradient(ellipse at 50% 0%, rgba(200, 168, 104, 0.08), transparent 60%),
    var(--bg-0);
  border-top: 1px solid var(--line);
}
.product-purchase-inner {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}
.product-purchase-eyebrow {
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 12px;
  letter-spacing: 0.28em;
  color: var(--accent);
  margin-bottom: 16px;
  display: block;
}
.product-purchase-title {
  font-family: var(--serif-jp);
  font-weight: 500;
  font-size: clamp(22px, 3vw, 28px);
  line-height: 1.65;
  color: var(--ink-0);
  letter-spacing: 0.05em;
  margin: 0 0 16px;
  text-wrap: pretty;
}
.product-purchase-title em { font-style: normal; color: var(--accent); }
.product-purchase-price {
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 18px;
  color: var(--ink-2);
  letter-spacing: 0.04em;
  margin-bottom: 32px;
}
.product-purchase-price strong {
  font-family: var(--serif-en);
  font-style: italic;
  font-weight: 500;
  font-size: 28px;
  color: var(--accent);
  letter-spacing: 0.02em;
  margin-right: 6px;
}
.product-purchase-fineprint {
  margin-top: 24px;
  font-family: var(--serif-jp);
  font-size: 11px;
  line-height: 1.85;
  color: var(--ink-3);
  letter-spacing: 0.06em;
  text-wrap: pretty;
}

/* Closing message */
.product-closing {
  padding: 80px 28px 100px;
  background: var(--bg-1);
  border-top: 1px solid var(--line);
}
.product-closing-inner {
  max-width: 720px;
  margin: 0 auto;
}
.product-closing p {
  font-family: var(--serif-jp);
  font-size: 15px;
  line-height: 2.2;
  color: var(--ink-1);
  letter-spacing: 0.06em;
  margin: 0 0 22px;
  text-wrap: pretty;
}
.product-closing p em {
  font-style: normal;
  background: linear-gradient(to top, rgba(200, 168, 104, 0.18) 35%, transparent 35%);
  padding: 0 4px;
  color: var(--ink-0);
}
.product-closing-sign {
  margin-top: 32px;
  font-family: var(--serif-jp);
  font-size: 14px;
  color: var(--ink-2);
  letter-spacing: 0.08em;
  text-align: right;
}
.product-closing-sign strong { color: var(--ink-0); font-weight: 500; }

/* Sticky bottom bar */
.product-sticky-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 60;
  background: rgba(10, 9, 7, 0.96);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--accent);
  padding: 14px 28px;
  transform: translateY(100%);
  transition: transform 0.4s var(--ease-out);
}
.product-sticky-bar.visible { transform: translateY(0); }
.product-sticky-bar-inner {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 24px;
}
.product-sticky-bar-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.product-sticky-bar-name {
  font-family: var(--serif-jp);
  font-size: 13px;
  color: var(--ink-1);
  letter-spacing: 0.04em;
  line-height: 1.5;
}
.product-sticky-bar-name strong { color: var(--ink-0); font-weight: 500; }
.product-sticky-bar-price {
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 13px;
  color: var(--accent);
  letter-spacing: 0.06em;
}
.product-sticky-bar-price strong {
  font-weight: 500;
  font-size: 18px;
}

/* 問題集一覧 — シリーズ4部構成のビジュアル概要（PageHeader 直下） */
.products-series-overview {
  position: relative;
  padding: 48px 28px 40px;
  background: var(--bg-0);
  border-bottom: 1px solid var(--line);
}
.products-series-overview-inner {
  max-width: 1180px;
  margin: 0 auto;
}
.products-series-overview-eyebrow {
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin: 0 0 10px;
  text-align: center;
}
.products-series-overview-title {
  font-family: var(--serif-jp);
  font-weight: 500;
  font-size: clamp(18px, 2.6vw, 22px);
  line-height: 1.45;
  letter-spacing: 0.06em;
  color: var(--ink-0);
  margin: 0 0 28px;
  text-align: center;
}
.products-series-overview-figure {
  margin: 0;
  padding: 0;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  overflow: hidden;
  background: var(--bg-2);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}
.products-series-overview-img {
  display: block;
  width: 100%;
  height: auto;
}

/* Listing page */
.products-list-section {
  position: relative;
  isolation: isolate;
  padding: 72px 28px 100px;
  background: var(--bg-0);
  border-top: 1px solid var(--line);
}
.products-list-section::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 1;
  background:
    linear-gradient(180deg, rgba(12, 10, 8, 0.5) 0%, transparent 120px),
    radial-gradient(ellipse 70% 40% at 85% 10%, rgba(200, 168, 104, 0.06), transparent 60%);
}
.products-list-inner {
  position: relative;
  z-index: 1;
  max-width: 1180px;
  margin: 0 auto;
}
.products-list-intro {
  font-family: var(--serif-jp);
  font-size: 15px;
  line-height: 2;
  color: var(--ink-2);
  max-width: 720px;
  margin: 0 0 56px;
  letter-spacing: 0.05em;
  text-wrap: pretty;
}
.products-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.product-card {
  background: var(--bg-1);
  border: 1px solid var(--line);
  transition: border-color 0.3s, transform 0.3s;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.product-card:hover { border-color: var(--accent); transform: translateY(-3px); }
.product-card-image {
  aspect-ratio: 1000/525;
  overflow: hidden;
  background: var(--bg-2);
}
.product-card-image img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.product-card-image.placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(ellipse at 30% 30%, rgba(200, 168, 104, 0.08), transparent 60%),
    linear-gradient(135deg, var(--bg-2), var(--bg-0));
  position: relative;
}
.product-card-image.placeholder::before {
  content: "";
  position: absolute;
  inset: 16px;
  border: 1px solid rgba(200, 168, 104, 0.12);
}
.product-card-image.placeholder .mark {
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 32px;
  color: var(--accent);
  opacity: 0.5;
  letter-spacing: 0.08em;
}
.product-card-image.placeholder .note {
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.18em;
  margin-top: 8px;
}
.product-card-body {
  padding: 28px 28px 32px;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.product-card-tags {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.product-card-tag {
  font-family: var(--serif-jp);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--accent);
  border: 1px solid rgba(200, 168, 104, 0.4);
  padding: 3px 10px;
}
.product-card-title {
  font-family: var(--serif-jp);
  font-weight: 500;
  font-size: 19px;
  line-height: 1.55;
  color: var(--ink-0);
  letter-spacing: 0.05em;
  margin: 0 0 14px;
  text-wrap: pretty;
  transition: color 0.3s;
}
.product-card:hover .product-card-title { color: var(--accent); }
.product-card-lead {
  font-family: var(--serif-jp);
  font-size: 13px;
  line-height: 1.85;
  color: var(--ink-2);
  letter-spacing: 0.04em;
  margin: 0 0 20px;
  flex: 1;
  text-wrap: pretty;
}
.product-card-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.product-card-price {
  font-family: var(--serif-en);
  font-style: italic;
  font-size: 14px;
  color: var(--accent);
  letter-spacing: 0.04em;
}
.product-card-price strong {
  font-weight: 500;
  font-size: 18px;
  letter-spacing: 0.02em;
}
.product-card-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--serif-jp);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 0.08em;
  transition: gap 0.3s;
}
.product-card-arrow svg { width: 14px; height: 14px; }
.product-card:hover .product-card-arrow { gap: 14px; }
.product-card.coming { opacity: 0.7; }
.product-card.coming .product-card-arrow { color: var(--ink-3); }

/* Products catalog — university finder */
.products-catalog-toolbar {
  margin-bottom: 48px;
}
.products-search-wrap {
  margin-bottom: 28px;
}
.products-search-label {
  display: block;
  font-family: var(--serif-jp);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--ink-3);
  margin-bottom: 10px;
}
.products-search-input {
  width: 100%;
  max-width: 480px;
  display: block;
  font-family: var(--serif-jp);
  font-size: 15px;
  padding: 14px 18px;
  border: 1px solid var(--line-strong);
  background: var(--bg-1);
  color: var(--ink-0);
  letter-spacing: 0.04em;
  border-radius: 2px;
}
.products-search-input::placeholder {
  color: var(--ink-4);
}
.products-search-input:focus {
  outline: none;
  border-color: rgba(200, 168, 104, 0.55);
}
.products-group-wrap {
  margin-bottom: 20px;
}
.products-group-label {
  display: block;
  font-family: var(--serif-jp);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--ink-3);
  margin-bottom: 12px;
}
.products-group-scroll {
  display: flex;
  flex-wrap: nowrap;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 6px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}
.products-group-tab {
  flex: 0 0 auto;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
  padding: 12px 18px;
  border: 1px solid var(--line);
  background: var(--bg-1);
  color: var(--ink-2);
  cursor: pointer;
  font-family: var(--serif-jp);
  letter-spacing: 0.06em;
  transition: border-color 0.25s, color 0.25s, background 0.25s;
  border-radius: 2px;
  text-align: left;
}
.products-group-tab:hover {
  border-color: rgba(200, 168, 104, 0.45);
  color: var(--ink-0);
}
.products-group-tab.active {
  border-color: var(--accent);
  color: var(--ink-0);
  background: rgba(200, 168, 104, 0.06);
}
.products-group-tab-ja {
  font-size: 14px;
  font-weight: 500;
}
.products-group-tab-en {
  font-size: 10px;
  color: var(--ink-3);
  letter-spacing: 0.12em;
}
.products-group-tab.active .products-group-tab-en {
  color: var(--accent);
}
.products-uni-hint {
  font-family: var(--serif-jp);
  font-size: 13px;
  line-height: 1.75;
  color: var(--ink-3);
  margin: 0 0 20px;
  letter-spacing: 0.04em;
}
.products-uni-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.products-uni-empty {
  grid-column: 1 / -1;
  font-family: var(--serif-jp);
  font-size: 14px;
  color: var(--ink-3);
  margin: 0;
  padding: 24px;
  text-align: center;
  border: 1px dashed var(--line);
}
.products-uni-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 20px;
  border: 1px solid var(--line);
  background: var(--bg-1);
  color: var(--ink-0);
  cursor: pointer;
  text-align: left;
  font-family: var(--serif-jp);
  transition: border-color 0.25s, transform 0.25s;
  border-radius: 2px;
}
.products-uni-btn:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.products-uni-btn-name {
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.05em;
  flex: 1;
}
.products-uni-btn-meta {
  flex-shrink: 0;
}
.products-uni-badge {
  display: inline-block;
  font-size: 10px;
  letter-spacing: 0.14em;
  padding: 4px 10px;
  border: 1px solid var(--line);
  color: var(--ink-3);
}
.products-uni-badge.on {
  border-color: rgba(6, 199, 85, 0.45);
  color: #8fdfb0;
}
.products-uni-btn-arrow {
  font-family: var(--serif-en);
  color: var(--accent);
  opacity: 0.8;
}
.products-selected-block {
  margin-top: 8px;
}
.products-selected-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 20px 28px;
  align-items: start;
  margin-bottom: 36px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
}
.products-back-btn {
  font-family: var(--serif-jp);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--accent);
  background: transparent;
  border: 1px solid var(--line);
  padding: 10px 16px;
  cursor: pointer;
  border-radius: 2px;
  transition: border-color 0.25s;
}
.products-back-btn:hover {
  border-color: var(--accent);
}
.products-selected-title {
  font-family: var(--serif-jp);
  font-weight: 500;
  font-size: clamp(22px, 3vw, 28px);
  letter-spacing: 0.05em;
  margin: 0 0 8px;
  color: var(--ink-0);
}
.products-selected-lead {
  font-family: var(--serif-jp);
  font-size: 13px;
  color: var(--ink-3);
  margin: 0;
  letter-spacing: 0.04em;
}
.products-selected-dot {
  opacity: 0.6;
}
@media (max-width: 900px) {
  .product-breadcrumb { padding: 20px 20px 0; font-size: 11px; gap: 8px; flex-wrap: wrap; }
  .product-hero { padding: 24px 20px 40px; }
  .product-hero-banner { aspect-ratio: 16/10; }
  .product-meta-row { gap: 10px; margin-top: 22px; padding-bottom: 22px; }
  .product-headline { margin-top: 28px; }
  .product-quick-cta { grid-template-columns: 1fr; padding: 22px 20px; gap: 18px; }
  .product-quick-cta .cta { width: 100%; min-height: 48px; }
  .product-section { padding: 56px 20px; }
  .product-section.dark-card { padding: 72px 20px; }
  .product-pricing { padding: 28px 20px; }
  .product-pricing-grid { grid-template-columns: 1fr; }
  .product-pricing-cell { padding: 24px 20px; }
  .product-pricing-cell + .product-pricing-cell { border-left: 0; border-top: 1px solid var(--line); }
  .product-rec-grid, .product-patterns { grid-template-columns: 1fr; }
  .product-rec { padding: 22px 20px; }
  .product-roadmap-step { grid-template-columns: 1fr; gap: 12px; padding: 20px; }
  .product-order-flow { grid-template-columns: repeat(2, 1fr); }
  .product-order-flow .step { border-bottom: 1px solid var(--line); }
  .product-order-flow .step:nth-child(2n) { border-right: 0; }
  .product-part-list { grid-template-columns: 1fr; }
  .product-part { padding: 22px 20px; }
  .product-part-head { gap: 10px; }
  .product-bonus { padding: 28px 20px; }
  .product-bonus-title { font-size: 18px; }
  .products-uni-grid { grid-template-columns: 1fr; }
  .products-selected-head {
    grid-template-columns: 1fr;
  }
  .products-back-btn { justify-self: start; }
  .product-purchase { padding: 56px 20px; }
  .product-purchase-title { font-size: 22px; }
  .product-purchase-price { font-size: 15px; }
  .product-purchase-price strong { font-size: 22px; }
  .product-closing { padding: 56px 20px 80px; }
  .product-sticky-bar { padding: 12px 16px; }
  .product-sticky-bar-inner { grid-template-columns: 1fr; gap: 10px; text-align: center; }
  .product-sticky-bar .cta { width: 100%; min-height: 48px; }
  .product-faq-q { font-size: 14px; gap: 12px; padding: 18px 0; }
  .product-faq-a { padding-left: 36px; font-size: 13px; }
  .product-h2 { margin-bottom: 24px; }
  .product-h3 { font-size: 17px; margin: 24px 0 12px; }
  /* Tables: allow horizontal scroll on narrow viewports rather than crushing cells */
  .product-table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
  .product-table { font-size: 12px; }
  .product-table th, .product-table td { padding: 11px 12px; font-size: 12px; }
  .product-table.col-table { min-width: 520px; }
  /* Spec table (key/value) reads fine; let it shrink without min-width */
  .product-table:not(.col-table) { min-width: 0; }
  .product-mistake { grid-template-columns: 56px 1fr; gap: 14px; padding: 20px 0; }
  .product-mistake-no { font-size: 22px; }
  /* SNS（旧: スマホで非表示になっていた — Instagram / YouTube 導線を維持） */
  .product-meta-spacer { flex-basis: 100%; height: 0; order: 1; }
  .product-meta-share {
    order: 2;
    flex-basis: 100%;
    justify-content: flex-start;
    margin-top: 4px;
    padding-top: 10px;
    border-top: 1px solid var(--line);
  }
  .product-meta-share a {
    width: 36px;
    height: 36px;
  }
}

@media (max-width: 480px) {
  .product-headline { font-size: 22px; line-height: 1.5; letter-spacing: 0.04em; }
  .product-headline em { padding: 0 4px; }
  .product-sublead { font-size: 14px; line-height: 1.95; }
  .product-quick-cta-text { font-size: 13px; }
  .product-h2 { font-size: 22px; line-height: 1.5; letter-spacing: 0.05em; margin-bottom: 20px; }
  .product-meta-tag { font-size: 10px; letter-spacing: 0.14em; padding: 3px 9px; }
  .product-meta-stat { font-size: 11px; }
  .product-meta-stat strong { font-size: 14px; }
  .product-pricing-amount { font-size: 36px; }
  .product-pricing-cell { padding: 22px 18px; }
  .product-pricing-compare li { grid-template-columns: 1fr; gap: 4px; padding: 10px 0; }
  .product-pricing-compare li strong { font-size: 14px; }
  .product-bonus { padding: 24px 18px; }
  .product-bonus-title { font-size: 17px; }
  .product-part { padding: 20px 18px; }
  .product-part-title { font-size: 16px; flex-basis: 100%; }
  .product-purchase-title { font-size: 19px; }
  .product-purchase-price { font-size: 14px; }
  .product-purchase-price strong { font-size: 20px; }
  .product-sticky-bar-name { font-size: 11px; }
  .product-sticky-bar-price { font-size: 12px; }
  .product-sticky-bar-price strong { font-size: 16px; }
  .product-faq-q { font-size: 13px; grid-template-columns: 22px 1fr 20px; gap: 10px; }
  .product-faq-q .q-mark { font-size: 16px; }
  .product-faq-a { padding-left: 32px; }
}

/* ----- Products manuals page — hero photo (desk & books) ----- */
.page-header.page-header--products-manuals.has-bg-image .page-header-bg {
  background-position: 22% 48%;
  background-size: cover;
  filter: saturate(0.9) brightness(0.48) contrast(1.08);
}
.page-header.page-header--products-manuals.has-bg-image::before {
  background:
    linear-gradient(
      90deg,
      rgba(10, 9, 7, 0.9) 0%,
      rgba(10, 9, 7, 0.78) min(42vw, 420px),
      rgba(10, 9, 7, 0.38) 58%,
      rgba(10, 9, 7, 0.52) 100%
    ),
    linear-gradient(180deg, rgba(10, 9, 7, 0.55) 0%, transparent 32%, transparent 68%, rgba(10, 9, 7, 0.65) 100%);
}
.page-header.page-header--products-manuals .page-header-inner {
  max-width: 900px;
}
.page-header.page-header--products-manuals .page-header-title {
  text-shadow: 0 2px 32px rgba(0, 0, 0, 0.5);
}
.page-header.page-header--products-manuals .page-header-lead {
  max-width: 36rem;
  line-height: 1.85;
  letter-spacing: 0.045em;
  text-shadow: 0 1px 18px rgba(0, 0, 0, 0.4);
}

/* ----- 問題集一覧（products.html）— タブレット縦・スマホ ----- */
@media (max-width: 768px) {
  .page-header.page-header--products-manuals.has-bg-image .page-header-bg {
    background-position: 56% 44%;
    filter: saturate(0.88) brightness(0.42) contrast(1.06);
  }
  .page-header.page-header--products-manuals.has-bg-image::before {
    background:
      linear-gradient(
        180deg,
        rgba(10, 9, 7, 0.5) 0%,
        rgba(10, 9, 7, 0.82) 45%,
        rgba(10, 9, 7, 0.88) 100%
      ),
      linear-gradient(90deg, rgba(10, 9, 7, 0.75) 0%, transparent 55%);
  }

  .page-header.page-header--products-manuals {
    padding-top: max(96px, calc(env(safe-area-inset-top, 0px) + 72px));
    padding-right: max(16px, env(safe-area-inset-right, 0px));
    padding-bottom: 40px;
    padding-left: max(16px, env(safe-area-inset-left, 0px));
  }
  .page-header.page-header--products-manuals .page-header-inner {
    max-width: none;
    text-align: left;
  }
  .page-header.page-header--products-manuals .page-header-eyebrow {
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 10px;
    margin-bottom: 18px;
  }
  .page-header.page-header--products-manuals .page-header-en::before,
  .page-header.page-header--products-manuals .page-header-en::after {
    width: 12px;
    margin: 0 6px;
  }
  .page-header.page-header--products-manuals .page-header-title {
    font-size: clamp(1.45rem, 6.2vw, 1.85rem);
    line-height: 1.38;
    letter-spacing: 0.045em;
    margin-bottom: 16px;
    text-align: left;
  }
  .page-header.page-header--products-manuals .page-header-lead {
    max-width: none;
    margin-left: 0;
    margin-right: 0;
    text-align: left;
    font-size: 13px;
    line-height: 1.72;
    letter-spacing: 0.04em;
  }
  .page-header.page-header--products-manuals .page-header-orn {
    margin-top: 22px;
    justify-content: flex-start;
  }
  .page-header.page-header--products-manuals .page-header-orn span:not(.page-header-orn-mark) {
    width: 28px;
  }

  .products-series-overview {
    padding: 28px max(16px, env(safe-area-inset-left, 0px)) 28px
      max(16px, env(safe-area-inset-right, 0px));
  }
  .products-series-overview-title {
    margin-bottom: 18px;
    text-align: left;
  }
  .products-series-overview-eyebrow {
    text-align: left;
  }

  .products-list-section {
    padding: 40px max(16px, env(safe-area-inset-left, 0px)) 64px
      max(16px, env(safe-area-inset-right, 0px));
  }
  .products-list-inner {
    max-width: none;
  }
  .products-list-intro {
    max-width: none;
    font-size: 14px;
    line-height: 1.75;
    margin-bottom: 36px;
    letter-spacing: 0.04em;
  }

  .products-catalog-toolbar {
    margin-bottom: 32px;
  }
  .products-search-wrap {
    margin-bottom: 20px;
  }
  .products-search-input {
    max-width: none;
    width: 100%;
    min-height: 48px;
    font-size: 16px;
    padding: 12px 14px;
  }
  .products-group-wrap {
    margin-bottom: 16px;
  }
  .products-group-scroll {
    gap: 8px;
    padding-bottom: 8px;
    scroll-padding-inline: 16px;
  }
  .products-group-tab {
    padding: 10px 14px;
  }
  .products-group-tab-ja {
    font-size: 13px;
  }
  .products-uni-hint {
    font-size: 12px;
    line-height: 1.65;
    margin-bottom: 16px;
  }

  .products-uni-btn {
    flex-wrap: wrap;
    align-items: flex-start;
    padding: 14px 16px;
    gap: 8px 12px;
  }
  .products-uni-btn-name {
    flex: 1 1 calc(100% - 28px);
    min-width: 0;
    font-size: 15px;
    line-height: 1.35;
  }
  .products-uni-btn-meta {
    flex: 1 1 100%;
    order: 3;
  }
  .products-uni-btn-arrow {
    margin-left: auto;
    line-height: 1;
    padding-top: 2px;
  }

  .products-selected-head {
    gap: 16px;
    margin-bottom: 28px;
    padding-bottom: 22px;
  }
  .products-selected-title {
    font-size: clamp(1.25rem, 5vw, 1.5rem);
  }
  .products-selected-lead {
    font-size: 12px;
    line-height: 1.65;
  }
  .products-selected-dot {
    display: none;
  }

  /* 2列のままだとカードが細長になるため 1 列に */
  .products-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .product-card-body {
    padding: 18px 18px 22px;
  }
  .product-card-title {
    font-size: 16px;
    line-height: 1.5;
    margin-bottom: 10px;
  }
  .product-card-lead {
    font-size: 12px;
    line-height: 1.7;
    margin-bottom: 16px;
  }
  .product-card-image {
    aspect-ratio: 16 / 9;
  }
  .product-card-image.placeholder .mark {
    font-size: 26px;
  }
  .product-card-foot {
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 10px 12px;
    padding-top: 14px;
  }
  .product-card-arrow {
    flex-wrap: wrap;
    max-width: 100%;
    line-height: 1.45;
  }
  .product-card-arrow svg {
    flex-shrink: 0;
  }
}

@media (max-width: 380px) {
  .products-group-tab-en {
    display: none;
  }
}