.hero { padding-top: var(--space-8); padding-bottom: var(--space-6); display: grid; align-content: center; }
.hero-copy { max-width: 50rem; margin-inline: auto; text-align: center; }
.hero h1 { font-size: var(--text-hero); }
.hero-positioning { margin: var(--space-3) 0 0; color: var(--color-accent); font-size: var(--text-xl); font-weight: 700; }
.hero-description { max-width: 42rem; margin: var(--space-4) auto 0; color: var(--color-text-muted); font-size: var(--text-lg); }
.hero-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-3); margin-top: var(--space-6); }
.hero-trust { justify-content: center; margin-top: var(--space-6); }
.hero-visual { width: min(100%, 28rem); margin: var(--space-4) auto 0; }
html:is([lang="en"], [lang="ja"]) .hero-visual { width: min(100%, 24.5rem); }
.hero-visual figcaption { display: none; }
.workflow-list { counter-reset: workflow; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; margin: 0; padding: 0; list-style: none; }
.workflow-step { position: relative; min-width: 0; padding: var(--space-6); border-top: 1px solid var(--color-border-strong); }
.workflow-step::before { counter-increment: workflow; content: counter(workflow, decimal-leading-zero); display: block; margin-bottom: var(--space-8); color: var(--color-accent); font-size: var(--text-sm); font-weight: 800; }
.workflow-step:not(:last-child)::after { position: absolute; top: 2rem; right: -0.3rem; width: 0.6rem; height: 0.6rem; border-top: 2px solid var(--color-border-strong); border-right: 2px solid var(--color-border-strong); transform: rotate(45deg); content: ""; }
.workflow-step h3 { margin-bottom: var(--space-2); font-size: var(--text-lg); }
.workflow-step p { color: var(--color-text-muted); font-size: var(--text-sm); }
.scenario-grid { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.4fr); gap: var(--space-12); align-items: center; }
.scenario-steps { display: grid; gap: var(--space-4); margin: var(--space-6) 0 0; padding: 0; list-style: none; }
.scenario-steps li { display: grid; grid-template-columns: 2rem 1fr; gap: var(--space-3); align-items: start; }
.scenario-steps span { width: 1.75rem; height: 1.75rem; display: inline-flex; align-items: center; justify-content: center; border-radius: 50%; background: var(--color-ai-soft); color: var(--color-ai); font-size: var(--text-sm); font-weight: 800; }
.trust-grid { display: grid; grid-template-columns: 0.9fr 1.4fr; gap: var(--space-12); }
.trust-list { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-6); margin: 0; padding: 0; list-style: none; }
.trust-list li { padding-top: var(--space-4); border-top: 2px solid var(--color-accent); }
.trust-list strong { display: block; margin-bottom: var(--space-2); }
.trust-list p { color: var(--color-text-muted); font-size: var(--text-sm); }
.gallery-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-6); }
.gallery-grid figure:first-child { grid-column: 1 / -1; }
.final-cta { padding-block: var(--space-16); background: var(--color-text); color: #fff; text-align: center; }
.final-cta h2 { color: #fff; font-size: var(--text-2xl); }
.final-cta p { max-width: 34rem; margin: var(--space-3) auto var(--space-6); color: #cbd5e1; }
.page-hero { padding-block: var(--space-16) var(--space-12); border-bottom: 1px solid var(--color-border); background: var(--color-surface); }
.page-hero h1 { max-width: 52rem; font-size: var(--text-hero); }
.page-hero .lead { margin-top: var(--space-4); }
.capability-section { padding-block: var(--space-16); }
.capability-section + .capability-section { border-top: 1px solid var(--color-border); }
.capability-grid { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: var(--space-12); align-items: start; }
.capability-grid h2 { font-size: var(--text-2xl); }
.capability-copy > p { color: var(--color-text-muted); }
.problem-result { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--space-4); margin-top: var(--space-6); }
.problem-result div { padding-top: var(--space-4); border-top: 2px solid var(--color-border-strong); }
.problem-result dt { margin-bottom: var(--space-2); font-size: var(--text-sm); font-weight: 800; }
.problem-result dd { margin: 0; color: var(--color-text-muted); font-size: var(--text-sm); }
.legal-hero { padding-block: var(--space-12) var(--space-8); }
.legal-hero h1 { font-size: var(--text-hero); }
.legal-meta { display: flex; flex-wrap: wrap; gap: var(--space-3) var(--space-6); margin-top: var(--space-4); color: var(--color-text-muted); font-size: var(--text-sm); }
.about-principles { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-8); }
.about-principle { padding-top: var(--space-4); border-top: 3px solid var(--color-accent); }
.about-principle:nth-child(2) { border-color: var(--color-ai); }
.not-found { min-height: calc(100svh - var(--header-height)); display: grid; align-items: center; padding-block: var(--space-12); }
.not-found-code { margin: 0; color: var(--color-accent); font-size: var(--text-lg); font-weight: 800; }
.not-found h1 { margin-top: var(--space-2); font-size: var(--text-hero); }
.not-found .lead { margin-top: var(--space-4); }
.not-found .hero-actions { justify-content: flex-start; }
@media (max-width: 767.98px) {
  .hero { padding-top: 2rem; padding-bottom: 1.6rem; }
  .hero h1, .page-hero h1, .legal-hero h1, .not-found h1 { font-size: 3.4rem; }
  .hero-positioning { margin-top: 1.2rem; font-size: 2rem; }
  .hero-description { margin-top: 1.6rem; font-size: 1.7rem; }
  .hero-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.8rem; margin-top: 1.6rem; }
  .hero-trust { flex-wrap: nowrap; justify-content: center; gap: 0.4rem; margin-top: 1.2rem; }
  .hero-trust .status-tag { min-width: 0; padding-inline: 0.6rem; font-size: 1.05rem; white-space: nowrap; }
  .hero-visual { width: min(100%, 28rem); margin-top: 1.6rem; }
  html:is([lang="en"], [lang="ja"]) .hero-visual { width: min(100%, 22.5rem); }
  .hero-visual figcaption { display: none; }
  .workflow-list { grid-template-columns: 1fr; }
  .workflow-step { padding: 2rem 0; }
  .workflow-step::before { margin-bottom: 1.2rem; font-size: 1.3rem; }
  .workflow-step:not(:last-child)::after { display: none; }
  .workflow-step h3 { font-size: 1.8rem; }
  .workflow-step p { font-size: 1.4rem; }
  .scenario-grid, .trust-grid, .gallery-grid, .capability-grid { grid-template-columns: 1fr; gap: 3.2rem; }
  .scenario-steps { gap: 1.6rem; margin-top: 2.4rem; }
  .scenario-steps li { grid-template-columns: 2.8rem 1fr; gap: 1.2rem; }
  .scenario-steps span { width: 2.8rem; height: 2.8rem; font-size: 1.3rem; }
  .trust-list { grid-template-columns: 1fr; gap: 2.4rem; }
  .trust-list li { padding-top: 1.6rem; }
  .trust-list p { font-size: 1.4rem; }
  .gallery-grid figure:first-child { grid-column: auto; }
  .final-cta { padding-block: 5.6rem; text-align: left; }
  .final-cta h2 { font-size: 2.6rem; }
  .final-cta p { margin: 1.2rem 0 2.4rem; }
  .page-hero { padding-block: 5.6rem 4rem; }
  .capability-section { padding-block: 5.6rem; }
  .capability-grid h2 { font-size: 2.6rem; }
  .problem-result { grid-template-columns: 1fr; gap: 2.4rem; margin-top: 2.4rem; }
  .problem-result div { padding-top: 1.6rem; }
  .problem-result dt, .problem-result dd { font-size: 1.4rem; }
  .legal-hero { padding-block: 4rem 3.2rem; }
  .legal-meta { gap: 0.8rem 1.6rem; margin-top: 1.6rem; font-size: 1.3rem; }
  .about-principles { grid-template-columns: 1fr; gap: 3.2rem; }
  .not-found { padding-block: 4.8rem; }
  .not-found-code { font-size: 1.8rem; }
  .not-found .hero-actions { justify-content: stretch; }
}