/* ===========================
   みなと書店 パートナーズ（B2B）
   Custom styles
   =========================== */

/* ---- HERO ---- */
.partners-hero {
  position: relative;
  padding: calc(var(--nav-h) + 80px) 0 120px;
  background: linear-gradient(180deg, var(--surface) 0%, var(--bg) 100%);
  overflow: hidden;
}
.partners-hero-inner {
  position: relative;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 32px;
  text-align: center;
}
.partners-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .12em;
  padding: 6px 18px;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  margin-bottom: 24px;
}
.partners-hero h1 {
  font-size: clamp(32px, 5.5vw, 56px);
  font-weight: 900;
  line-height: 1.35;
  letter-spacing: -.02em;
  color: var(--text);
}
.partners-hero h1 .hl {
  background: var(--accent);
  color: #fff;
  padding: 0 10px 4px;
  border-radius: 4px;
}
.partners-sub {
  margin-top: 28px;
  font-size: 16px;
  line-height: 2;
  color: var(--muted);
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

/* ---- KPI CARDS ---- */
.partners-kpi {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 18px;
  max-width: 820px;
  margin-left: auto;
  margin-right: auto;
}
.partners-kpi-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 30px 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border-top: 4px solid var(--accent);
}
.partners-kpi-num {
  font-family: var(--font-sans);
  font-size: 34px;
  font-weight: 900;
  color: var(--primary);
  line-height: 1.1;
  letter-spacing: -.02em;
}
.partners-kpi-num em {
  font-size: .5em;
  font-style: normal;
  font-weight: 700;
  margin-left: 4px;
  color: var(--text);
}
.partners-kpi-label {
  margin-top: 14px;
  font-size: 13px;
  font-weight: 700;
  color: var(--muted);
  letter-spacing: .05em;
}

/* ---- PRICE COMPARISON (NEW for B2B) ---- */
.price-compare {
  margin-top: 56px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 24px;
  align-items: center;
  max-width: 820px;
  margin-left: auto;
  margin-right: auto;
}
.price-compare-card {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
}
.price-compare-card--before {
  opacity: .7;
}
.price-compare-card--after {
  border: 2px solid var(--accent);
  box-shadow: 0 12px 32px rgba(240,140,48,.18);
}
.price-compare-label {
  font-size: 12px;
  letter-spacing: .12em;
  font-weight: 700;
  color: var(--muted);
  margin-bottom: 12px;
}
.price-compare-card--after .price-compare-label {
  color: var(--primary);
}
.price-compare-num {
  font-size: 36px;
  font-weight: 900;
  color: var(--text);
  line-height: 1.1;
  letter-spacing: -.02em;
}
.price-compare-card--after .price-compare-num {
  color: var(--primary);
  font-size: 44px;
}
.price-compare-num em {
  font-size: .45em;
  font-style: normal;
  font-weight: 700;
  margin-left: 4px;
  color: var(--muted);
}
.price-compare-desc {
  margin-top: 10px;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.7;
}
.price-compare-arrow {
  font-size: 32px;
  color: var(--accent);
  font-weight: 700;
}
@media (max-width: 720px) {
  .price-compare {
    grid-template-columns: 1fr;
    gap: 12px;
    position: relative;
  }
  .price-compare-arrow {
    display: none;
  }
  .price-compare-card--before {
    position: relative;
    margin-bottom: 20px;
  }
  .price-compare-card--before::after {
    content: "↓";
    position: absolute;
    left: 50%;
    bottom: -22px;
    transform: translateX(-50%);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-weight: 900;
    color: #fff;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 4px 12px rgba(240,140,48,.3);
    z-index: 1;
  }
}

/* ---- BENEFITS ---- */
.benefits-grid {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.benefit-card {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 36px 28px;
  border-top: 4px solid var(--accent);
  box-shadow: var(--shadow-sm);
}
.benefit-card:nth-child(2) { border-top-color: var(--primary); }
.benefit-card:nth-child(3) { border-top-color: var(--green); }
.benefit-card:nth-child(4) { border-top-color: #1E6FA0; }
.benefit-num {
  font-family: var(--font-en);
  font-size: 40px;
  font-weight: 300;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 14px;
}
.benefit-card:nth-child(2) .benefit-num { color: var(--primary); }
.benefit-card:nth-child(3) .benefit-num { color: var(--green); }
.benefit-card:nth-child(4) .benefit-num { color: #1E6FA0; }
.benefit-card h3 {
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 10px;
}
.benefit-card p {
  font-size: 14px;
  color: var(--muted);
  line-height: 2;
  font-weight: 300;
}

/* ---- BOOK LIST ---- */
.book-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}
.book-chip {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 18px;
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
}
.book-chip--ok {
  background: rgba(42,138,80,.08);
  border-color: rgba(42,138,80,.3);
  color: var(--green);
}
.book-chip--ng {
  background: rgba(192,78,26,.08);
  border-color: rgba(192,78,26,.25);
  color: var(--primary);
  text-decoration: line-through;
}

/* ---- PROCESS STEPS ---- */
.proc-steps {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
}
.proc-step {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 28px 22px;
  border: 1px solid var(--border);
  text-align: center;
  position: relative;
}
.proc-step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-en);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
}
.proc-step h4 {
  font-size: 15px;
  font-weight: 800;
  margin-bottom: 8px;
}
.proc-step p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.85;
}

/* ---- PRICE TABLE (service page) ---- */
.price-table {
  width: 100%;
  margin-top: 32px;
  border-collapse: separate;
  border-spacing: 0;
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.price-table th,
.price-table td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  font-size: 14px;
  line-height: 1.7;
}
.price-table thead th {
  background: var(--surface);
  font-weight: 800;
  font-size: 13px;
  letter-spacing: .05em;
  color: var(--text);
}
.price-table tbody tr:last-child th,
.price-table tbody tr:last-child td {
  border-bottom: none;
}
.price-table tbody th {
  font-weight: 700;
  color: var(--primary);
  width: 38%;
}
.price-table td.num {
  font-weight: 800;
  color: var(--text);
  text-align: right;
  font-variant-numeric: tabular-nums;
}

/* ---- MISSION BLOCK ---- */
.mission-block {
  margin-top: 64px;
  padding: 60px 40px;
  background: var(--bg-dark);
  color: #fff;
  border-radius: var(--radius-lg);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.mission-block h2 {
  font-size: clamp(24px, 3.5vw, 36px);
  font-weight: 900;
  line-height: 1.5;
  margin-bottom: 20px;
}
.mission-block h2 .hl-lt { color: var(--accent-lt); }
.mission-block p {
  font-size: 15px;
  line-height: 2;
  max-width: 640px;
  margin: 0 auto;
  opacity: .85;
  font-weight: 300;
}

/* ---- CTA PARTNERS ---- */
.cta-partners {
  margin-top: 80px;
  padding: 60px 40px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  border-radius: var(--radius-lg);
  text-align: center;
}
.cta-partners h2 {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 900;
  line-height: 1.5;
  margin-bottom: 12px;
}
.cta-partners p {
  font-size: 15px;
  line-height: 2;
  max-width: 600px;
  margin: 0 auto 30px;
  opacity: .95;
}
.cta-partners .btn--white {
  background: #fff;
  color: var(--primary);
}
.cta-partners .btn--white:hover { color: var(--primary); }

/* ---- CASE CARDS ---- */
.case-grid {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}
.case-card {
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.case-card-head {
  padding: 24px 28px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}
.case-card-tag {
  display: inline-block;
  font-size: 11px;
  letter-spacing: .1em;
  font-weight: 700;
  color: var(--primary);
  padding: 3px 10px;
  background: #fff;
  border-radius: 999px;
  margin-bottom: 10px;
}
.case-card-name {
  font-size: 18px;
  font-weight: 800;
  color: var(--text);
}
.case-card-body {
  padding: 24px 28px;
  flex: 1;
}
.case-card-metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px dashed var(--border);
}
.case-metric-num {
  font-size: 22px;
  font-weight: 900;
  color: var(--primary);
  line-height: 1.1;
}
.case-metric-num em {
  font-size: .6em;
  font-style: normal;
  font-weight: 700;
  margin-left: 2px;
  color: var(--muted);
}
.case-metric-label {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: .05em;
  margin-top: 4px;
}
.case-card-body p {
  font-size: 13px;
  line-height: 2;
  color: var(--muted);
  font-weight: 300;
}
.case-card-body p strong {
  color: var(--text);
  font-weight: 700;
}

/* ---- FAQ ---- */
.faq-list {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.faq-q {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 22px 24px;
  cursor: pointer;
  font-weight: 700;
  font-size: 15px;
  line-height: 1.7;
  transition: background .2s var(--ease-out);
}
.faq-q:hover { background: var(--surface); }
.faq-q::before {
  content: "Q";
  flex: 0 0 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 0;
}
.faq-a {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 22px 24px;
  border-top: 1px solid var(--border);
  background: #FFFDF8;
  font-size: 14px;
  line-height: 2;
  color: var(--muted);
  font-weight: 300;
}
.faq-a::before {
  content: "A";
  flex: 0 0 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-weight: 800;
  font-size: 14px;
}
.faq-a strong { color: var(--text); font-weight: 700; }

/* ---- RESPONSIVE ---- */

/* Tablet / small laptop */
@media (max-width: 860px) {
  .partners-kpi { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .benefits-grid { grid-template-columns: repeat(2, 1fr); }
  .case-grid { grid-template-columns: 1fr; }
}

/* Mobile (phones) */
@media (max-width: 640px) {
  /* Hero */
  .partners-hero { padding: calc(var(--nav-h) + 40px) 0 56px; }
  .partners-hero-inner { padding: 0 20px; }
  .partners-hero h1 { line-height: 1.3; letter-spacing: -.01em; }
  .partners-sub { font-size: 14px; line-height: 1.9; margin-top: 20px; }

  /* KPI — 2x2 on phones */
  .partners-kpi {
    margin-top: 32px;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  .partners-kpi-card { padding: 22px 10px; }
  .partners-kpi-num { font-size: 22px; letter-spacing: -.03em; }
  .partners-kpi-num em { font-size: .5em; margin-left: 2px; }
  .partners-kpi-label { font-size: 11px; margin-top: 10px; letter-spacing: 0; }

  /* Price compare */
  .price-compare-card { padding: 22px 16px; }
  .price-compare-label { font-size: 11px; margin-bottom: 8px; }
  .price-compare-num { font-size: 30px; line-height: 1.1; }
  .price-compare-num em { font-size: .42em; margin-left: 3px; vertical-align: baseline; }
  .price-compare-card--after .price-compare-num { font-size: 38px; }
  .price-compare-desc { font-size: 12px; margin-top: 6px; line-height: 1.6; }

  /* Benefits — 1 col on phones */
  .benefits-grid { grid-template-columns: 1fr; gap: 14px; margin-top: 40px; }
  .benefit-card { padding: 28px 22px; }

  /* Process steps — 2x2 on phones */
  .proc-steps { grid-template-columns: repeat(2, 1fr); gap: 12px; margin-top: 32px; }
  .proc-step { padding: 20px 14px; }
  .proc-step-num { width: 32px; height: 32px; font-size: 14px; margin-bottom: 12px; }
  .proc-step h4 { font-size: 14px; }
  .proc-step p { font-size: 12px; line-height: 1.7; }

  /* Mission / CTA */
  .mission-block {
    margin-top: 40px;
    padding: 40px 22px;
  }
  .mission-block h2 { line-height: 1.45; }
  .mission-block p { font-size: 13.5px; line-height: 1.9; }
  .cta-partners {
    margin-top: 48px;
    padding: 40px 22px;
  }
  .cta-partners p { font-size: 13.5px; line-height: 1.9; }

  /* Price / contract tables */
  .price-table th,
  .price-table td { padding: 10px 12px; font-size: 12.5px; line-height: 1.6; }
  .price-table tbody th { width: 44%; font-size: 12.5px; }
  .price-table thead th { font-size: 11px; padding: 10px 12px; }

  /* Case cards */
  .case-card-head { padding: 18px 20px; }
  .case-card-body { padding: 20px 20px; }
  .case-card-metrics { gap: 8px; padding-bottom: 16px; margin-bottom: 16px; }
  .case-metric-num { font-size: 18px; }
  .case-metric-num em { font-size: .55em; }
  .case-metric-label { font-size: 10px; }
  .case-card-body p { font-size: 12.5px; line-height: 1.9; }

  /* FAQ */
  .faq-q { padding: 16px 18px; gap: 12px; font-size: 14px; }
  .faq-q::before { flex: 0 0 26px; height: 26px; font-size: 12px; }
  .faq-a { padding: 16px 18px; gap: 12px; font-size: 13px; line-height: 1.9; }
  .faq-a::before { flex: 0 0 26px; height: 26px; font-size: 12px; }
}

/* Very small phones (iPhone SE 等) */
@media (max-width: 380px) {
  .partners-kpi { grid-template-columns: 1fr; }
  .proc-steps { grid-template-columns: 1fr; }
  .partners-hero h1 { font-size: 28px; }
}

/* ---- Company table 視認性改善（モバイル） ---- */
@media (max-width: 640px) {
  .company-table tr {
    padding: 14px 18px;
    display: block;
    border-bottom: 1px solid var(--border);
  }
  .company-table tr:last-child { border-bottom: none; }
  .company-table th {
    font-size: 12px;
    letter-spacing: .04em;
    padding: 0 0 4px;
    color: var(--primary);
    font-weight: 700;
  }
  .company-table td {
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
    line-height: 1.7;
    padding: 0;
  }
  .company-table td a { font-weight: 600; }
}