/* Physical AI division landing page */

.mc-pai-hero { padding: 118px 0 64px; background: linear-gradient(180deg, #fff 0%, #FAFAFB 100%); border-bottom: 1px solid var(--mc-line); }
  .mc-page-hero-bc { font-family: var(--mc-font-en); font-size: 11px; color: var(--mc-text-3); letter-spacing: 0.12em; margin-bottom: 24px; }
  .mc-page-hero-bc a:hover { color: var(--mc-red); }
  .mc-pai-hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 460px); gap: 48px; align-items: center; }
  .mc-pai-badge { display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px; border-radius: 999px; background: #FCE6E8; color: var(--mc-red); font-size: 11.5px; font-weight: 700; letter-spacing: 0.04em; margin-bottom: 20px; }
  .mc-pai-badge .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--mc-red); }
  .mc-pai-eyebrow { font-family: var(--mc-font-en); font-size: 12px; font-weight: 800; letter-spacing: 0.18em; color: var(--mc-red); }
  /* The H1 carries a two-clause Japanese sentence, not the English lockup that
     .mc-page-hero-title is scaled for. The bounds are set from the measured
     column: 644px at desktop holds the 19-character first clause at 32px, and
     358px at 390px holds the 16-character second clause at 21px. Going larger
     pushes a one-character orphan onto its own line. */
  .mc-pai-hero-title { font-family: var(--mc-font-display); font-size: clamp(21px, 2.6vw, 32px); font-weight: 700; line-height: 1.55; margin-top: 12px; text-wrap: pretty; }
  .mc-pai-hero-desc { font-size: 14.5px; color: var(--mc-text-2); line-height: 2; margin-top: 20px; max-width: 620px; }
  .mc-pai-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
  .mc-pai-btn { display: inline-flex; align-items: center; padding: 14px 28px; border-radius: 6px; background: var(--mc-red); color: #fff; font-size: 14px; font-weight: 700; transition: background .2s, transform .2s; }
  .mc-pai-btn:hover { background: var(--mc-red-dark); transform: translateY(-1px); }
  .mc-pai-btn.is-ghost { background: #fff; color: var(--mc-text); border: 1px solid var(--mc-line); }
  .mc-pai-btn.is-ghost:hover { border-color: var(--mc-red); color: var(--mc-red); background: #fff; }
  .mc-pai-note { margin-top: 22px; font-size: 12px; color: var(--mc-text-3); line-height: 1.9; max-width: 560px; }

/* Hero diagram: fixed camera + wrist camera work cell */
.mc-pai-hero-visual { min-width: 0; }
  .mc-pai-cell { width: 100%; height: auto; }
  .mc-pai-cell .frame { fill: #fff; stroke: var(--mc-line); stroke-width: 1; }
  .mc-pai-cell .belt { stroke: var(--mc-line); stroke-width: 6; stroke-linecap: round; }
  .mc-pai-cell .item { fill: #F0F0F2; stroke: var(--mc-text-3); stroke-width: 1; }
  .mc-pai-cell .carton { fill: #fff; stroke: var(--mc-ink); stroke-width: 1.6; stroke-linejoin: round; }
  .mc-pai-cell .carton-lid { fill: #FAFAFB; stroke: var(--mc-ink); stroke-width: 1.6; stroke-linejoin: round; }
  .mc-pai-cell .arm-base { fill: var(--mc-ink); }
  .mc-pai-cell .arm { stroke: var(--mc-ink); stroke-width: 5; stroke-linecap: round; }
  .mc-pai-cell .joint { fill: #fff; stroke: var(--mc-ink); stroke-width: 3; }
  .mc-pai-cell .wrist { fill: var(--mc-red); }
  .mc-pai-cell .pole { stroke: var(--mc-text-3); stroke-width: 2; stroke-dasharray: 4 4; }
  .mc-pai-cell .cam { fill: var(--mc-red); }
  .mc-pai-cell .cone { fill: var(--mc-red); opacity: 0.07; }
  .mc-pai-cell .cone.is-wrist { opacity: 0.14; }
  .mc-pai-cell .label { font-family: var(--mc-font-jp); font-size: 12px; font-weight: 700; fill: var(--mc-text); }
  .mc-pai-cell .sub { font-family: var(--mc-font-jp); font-size: 10px; fill: var(--mc-text-3); }

.mc-pai-section { padding: 72px 0; }
.mc-pai-section.is-soft { background: #FAFAFB; }
  .mc-pai-head { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 48px; margin-bottom: 28px; align-items: end; }
  .mc-pai-head .num { font-family: var(--mc-font-en); font-weight: 800; font-size: 60px; letter-spacing: -0.03em; line-height: 1; color: var(--mc-red); }
  .mc-pai-head .en { font-family: var(--mc-font-en); font-size: 11px; font-weight: 700; letter-spacing: 0.18em; color: var(--mc-text-3); }
  .mc-pai-head h2 { font-family: var(--mc-font-display); font-size: clamp(22px, 2.6vw, 28px); font-weight: 700; line-height: 1.55; }
  .mc-pai-lead { font-size: 14.5px; color: var(--mc-text-2); line-height: 2; max-width: 780px; margin-bottom: 36px; }

  .mc-card-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; max-width: 1080px; }
  .mc-card-item { background: #fff; border: 1px solid var(--mc-line); border-radius: 10px; padding: 24px 26px; transition: border-color .2s; }
  .mc-card-item:hover { border-color: var(--mc-red); }
  .mc-card-item .n { font-family: var(--mc-font-en); font-weight: 800; color: var(--mc-red); font-size: 13px; letter-spacing: 0.06em; }
  .mc-card-item h4 { font-size: 15px; font-weight: 700; margin: 8px 0 10px; line-height: 1.5; }
  .mc-card-item p { font-size: 12.5px; color: var(--mc-text-2); line-height: 1.9; }

/* Fit / out-of-scope */
.mc-pai-split { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
  .mc-pai-fit-card { background: #fff; border: 1px solid var(--mc-line); border-radius: 12px; padding: 30px 32px; }
  .mc-pai-fit-card.is-out { background: #FAFAFB; }
  .mc-pai-tag { display: inline-block; padding: 4px 12px; border-radius: 4px; background: #FCE6E8; color: var(--mc-red); font-size: 11px; font-weight: 700; letter-spacing: 0.04em; margin-bottom: 18px; }
  .mc-pai-tag.is-out { background: #EDEDF0; color: var(--mc-text-2); }
  .mc-pai-check { display: grid; gap: 12px; }
  .mc-pai-check li { position: relative; padding-left: 26px; font-size: 13.5px; line-height: 1.85; color: var(--mc-text); }
  .mc-pai-check li::before { content: ""; position: absolute; left: 0; top: 8px; width: 14px; height: 8px; border-left: 2px solid var(--mc-red); border-bottom: 2px solid var(--mc-red); transform: rotate(-45deg); }
  .mc-pai-check.is-out li { color: var(--mc-text-2); }
  .mc-pai-check.is-out li::before { border: none; top: 11px; left: 2px; width: 12px; height: 2px; background: var(--mc-text-3); transform: none; }
  .mc-pai-fit-note { margin-top: 22px; padding: 14px 16px; background: #fff; border: 1px solid var(--mc-line); border-radius: 6px; font-size: 12px; color: var(--mc-text-2); line-height: 1.9; }

/* Process steps */
.mc-pai-flow { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; list-style: none; }
  .mc-pai-step { background: #fff; border: 1px solid var(--mc-line); border-radius: 10px; padding: 24px 26px; }
  .mc-pai-step .step-num { font-family: var(--mc-font-en); font-size: 11px; font-weight: 800; letter-spacing: 0.14em; color: var(--mc-red); }
  .mc-pai-step h4 { font-size: 15px; font-weight: 700; margin: 10px 0 8px; line-height: 1.5; }
  .mc-pai-step p { font-size: 12.5px; color: var(--mc-text-2); line-height: 1.9; }

/* Pricing stages */
.mc-pai-plans { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
  .mc-pai-plan { display: flex; flex-direction: column; background: #fff; border: 1px solid var(--mc-line); border-radius: 10px; padding: 26px 24px; }
  .mc-pai-plan.is-featured { border-color: var(--mc-red); }
  .mc-pai-plan h4 { font-size: 16px; font-weight: 700; margin-bottom: 10px; }
  .mc-pai-plan .purpose { flex: 1; font-size: 12.5px; color: var(--mc-text-2); line-height: 1.9; }
  .mc-pai-plan .price { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--mc-line); font-family: var(--mc-font-display); font-size: 15px; font-weight: 700; color: var(--mc-ink); }

/* FAQ */
.mc-pai-faq { max-width: 860px; }
  .mc-pai-faq details { border-bottom: 1px solid var(--mc-line); }
  .mc-pai-faq summary { padding: 20px 32px 20px 0; font-size: 14.5px; font-weight: 700; cursor: pointer; position: relative; list-style: none; }
  .mc-pai-faq summary::-webkit-details-marker { display: none; }
  .mc-pai-faq summary::after { content: "+"; position: absolute; right: 4px; top: 18px; font-family: var(--mc-font-en); font-size: 20px; font-weight: 400; color: var(--mc-red); }
  .mc-pai-faq details[open] summary::after { content: "−"; }
  .mc-pai-faq p { padding: 0 32px 22px 0; font-size: 13.5px; color: var(--mc-text-2); line-height: 2; }

/* Inquiry form */
.mc-pai-contact { padding: 72px 0 88px; background: #FAFAFB; border-top: 1px solid var(--mc-line); }
  .mc-pai-form-wrap { display: grid; grid-template-columns: 300px minmax(0, 1fr); gap: 48px; align-items: start; }
  .mc-pai-aside { position: sticky; top: 100px; }
  .mc-pai-aside h3 { font-family: var(--mc-font-display); font-size: 18px; font-weight: 700; margin-bottom: 14px; }
  .mc-pai-aside-lead { font-size: 12.5px; color: var(--mc-text-2); line-height: 1.95; margin-bottom: 20px; }
  .mc-pai-aside .mc-pai-check li { font-size: 12.5px; }
  .mc-pai-aside-box { margin-top: 20px; padding: 16px 18px; background: #fff; border: 1px solid var(--mc-line); border-radius: 8px; }
  .mc-pai-aside-box p { font-size: 12px; color: var(--mc-text-2); line-height: 1.9; }
  .mc-pai-aside-box a { color: var(--mc-red); font-weight: 600; }

  .mc-pai-form { background: #fff; border: 1px solid var(--mc-line); border-radius: 12px; padding: 36px 40px; display: grid; gap: 26px; }
  .mc-pai-fieldset { display: grid; gap: 20px; }
  .mc-pai-legend { font-size: 13px; font-weight: 700; color: var(--mc-red); padding-bottom: 10px; border-bottom: 1px solid var(--mc-line); letter-spacing: 0.04em; }
  .mc-field label { display: block; font-size: 13px; font-weight: 700; margin-bottom: 8px; }
  .mc-field label .req { color: var(--mc-red); font-size: 10px; margin-left: 6px; padding: 2px 6px; background: #FCE6E8; border-radius: 3px; font-weight: 700; vertical-align: 2px; }
  .mc-field label .opt { color: var(--mc-text-3); font-size: 10px; margin-left: 6px; padding: 2px 6px; background: #f0f0f2; border-radius: 3px; font-weight: 600; vertical-align: 2px; }
  .mc-field input:not([type="checkbox"]), .mc-field select, .mc-field textarea { width: 100%; padding: 12px 14px; border: 1px solid var(--mc-line); border-radius: 4px; font-size: 13.5px; font-family: inherit; background: #fff; transition: border-color .2s; }
  .mc-field input:focus, .mc-field select:focus, .mc-field textarea:focus { outline: none; border-color: var(--mc-red); }
  .mc-field input[type="checkbox"] { width: auto; flex-shrink: 0; }
  .mc-field textarea { resize: vertical; line-height: 1.8; }
  .mc-field-help { margin-top: 6px; font-size: 11.5px; color: var(--mc-text-3); line-height: 1.75; }
  .mc-field-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
  /* Optional detail fields. The inputs stay in the DOM while collapsed, so the
     existing submit handler still reads them. */
  .mc-pai-more { border: 1px solid var(--mc-line); border-radius: 8px; background: #FAFAFB; }
  .mc-pai-more > summary { display: flex; align-items: center; gap: 10px; min-height: 44px; padding: 12px 44px 12px 18px; font-size: 13px; font-weight: 700; cursor: pointer; position: relative; list-style: none; }
  .mc-pai-more > summary::-webkit-details-marker { display: none; }
  .mc-pai-more > summary::after { content: "+"; position: absolute; right: 18px; top: 50%; transform: translateY(-50%); font-family: var(--mc-font-en); font-size: 20px; font-weight: 400; color: var(--mc-red); }
  .mc-pai-more[open] > summary::after { content: "−"; }
  .mc-pai-more[open] > summary { border-bottom: 1px solid var(--mc-line); }
  .mc-pai-more-body { display: grid; gap: 26px; padding: 22px 18px 24px; }
  .mc-pai-more-lead { font-size: 12px; color: var(--mc-text-3); line-height: 1.9; }

  .mc-privacy-box { padding: 16px 18px; background: #FAFAFB; border: 1px solid var(--mc-line); border-radius: 6px; font-size: 11.5px; color: var(--mc-text-2); line-height: 1.85; max-height: 100px; overflow-y: auto; }
  .mc-privacy-box a, .mc-privacy-agree a { color: var(--mc-red); text-decoration: underline; text-underline-offset: 3px; }
  /* Page-scoped so the shared utility class keeps its size on the general form. */
  .mc-pai-form .mc-privacy-agree { min-height: 44px; align-items: center; }
  .mc-pai-submit-row { display: flex; justify-content: center; padding-top: 8px; border-top: 1px solid var(--mc-line); }
  .mc-pai-submit-row .mc-btn { padding: 16px 48px; margin-top: 20px; }

  .mc-pai-success { text-align: center; padding: 40px 8px; }
  .mc-pai-success-icon { width: 64px; height: 64px; border-radius: 50%; background: #e8f5e9; color: #2e7d32; display: grid; place-items: center; margin: 0 auto 20px; font-size: 28px; }
  .mc-pai-success h3 { font-size: 20px; margin-bottom: 12px; }
  .mc-pai-success p { color: var(--mc-text-2); font-size: 13.5px; line-height: 1.95; }
  .mc-pai-success-list { margin: 24px auto 0; max-width: 480px; text-align: left; padding: 18px 22px; background: #FAFAFB; border: 1px solid var(--mc-line); border-radius: 8px; }
  .mc-pai-success-list h4 { font-size: 13px; font-weight: 700; margin-bottom: 10px; }
  .mc-pai-success-list li { font-size: 12.5px; color: var(--mc-text-2); line-height: 1.95; padding-left: 16px; position: relative; }
  .mc-pai-success-list li::before { content: ""; position: absolute; left: 0; top: 10px; width: 6px; height: 6px; border-radius: 50%; background: var(--mc-red); }
  .mc-pai-success > a { display: inline-block; margin-top: 24px; color: var(--mc-red); font-weight: 600; font-size: 14px; }

/* Closing CTA (shared visual language with the other service pages) */
.mc-svc-cta-section { padding: 64px 0; background: var(--mc-ink); color: #fff; }
  .mc-svc-cta-section h2 { font-family: var(--mc-font-display); font-size: clamp(24px, 3.4vw, 34px); font-weight: 700; line-height: 1.5; text-align: center; margin-bottom: 12px; }
  .mc-svc-cta-section p { text-align: center; color: rgba(255,255,255,0.7); font-size: 14px; line-height: 2; max-width: 640px; margin: 0 auto 32px; }
  .mc-svc-cta-section .actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
  .mc-svc-cta-section .actions a { display: inline-flex; align-items: center; gap: 10px; padding: 14px 28px; border-radius: 6px; font-weight: 700; font-size: 14px; transition: all .2s; }
  .mc-svc-cta-section .primary { background: var(--mc-red); color: #fff; }
  .mc-svc-cta-section .primary:hover { background: var(--mc-red-dark); }
  .mc-svc-cta-section .secondary { background: rgba(255,255,255,0.1); color: #fff; border: 1px solid rgba(255,255,255,0.2); }
  .mc-svc-cta-section .secondary:hover { background: rgba(255,255,255,0.16); }

@media (max-width: 1100px) {
  .mc-pai-plans { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 960px) {
  .mc-pai-hero-grid { grid-template-columns: 1fr; gap: 32px; }
  .mc-pai-head { grid-template-columns: 1fr; gap: 12px; align-items: start; }
  .mc-card-grid { grid-template-columns: 1fr; }
  .mc-pai-split { grid-template-columns: 1fr; }
  .mc-pai-flow { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .mc-pai-form-wrap { grid-template-columns: 1fr; gap: 32px; }
  .mc-pai-aside { position: static; }
}
@media (max-width: 640px) {
  .mc-pai-hero { padding: 96px 0 48px; }
  .mc-pai-actions .mc-pai-btn { flex: 1 1 100%; justify-content: center; }
  .mc-pai-flow { grid-template-columns: 1fr; }
  .mc-pai-plans { grid-template-columns: 1fr; }
  .mc-field-row { grid-template-columns: 1fr; }
  .mc-pai-fit-card { padding: 24px 20px; }
  .mc-pai-form { padding: 24px 20px; }
  .mc-pai-submit-row .mc-btn { width: 100%; justify-content: center; padding: 16px 24px; }
}