.simulation-page {
  --simulation-blue: #174ea6;
  --simulation-blue-dark: #0b2f72;
  --simulation-ink: #121826;
  --simulation-muted: #5d6675;
  --simulation-line: #e4e8ef;
  background: #ffffff;
  color: var(--simulation-ink);
  line-height: 1.72;
}

.simulation-page main {
  background: #ffffff;
}

.simulation-page h1,
.simulation-page h2,
.simulation-page h3,
.simulation-page p,
.simulation-page ul,
.simulation-page ol,
.simulation-page blockquote {
  margin-top: 0;
}

.simulation-hero {
  display: grid;
  min-height: min(720px, calc(100vh - var(--header-height)));
  place-items: center;
  padding: clamp(90px, 12vw, 160px) 22px;
  border-bottom: 1px solid var(--simulation-line);
  text-align: center;
}

.simulation-hero__inner {
  width: min(930px, 100%);
}

.simulation-kicker {
  margin-bottom: 18px;
  color: var(--simulation-blue);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.simulation-hero h1 {
  margin-bottom: 28px;
  font-size: clamp(2.15rem, 5vw, 4.6rem);
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.simulation-hero__subtitle {
  max-width: 760px;
  margin: 0 auto 38px;
  color: var(--simulation-muted);
  font-size: clamp(1.15rem, 2vw, 1.55rem);
  line-height: 1.48;
}

.simulation-cta {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  padding: 14px 24px;
  border-radius: 6px;
  background: var(--simulation-blue);
  box-shadow: 0 10px 24px rgba(23, 78, 166, 0.2);
  color: #ffffff;
  font-weight: 750;
  line-height: 1.25;
  text-align: center;
  text-decoration: none;
  transition: background 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.simulation-cta:hover,
.simulation-cta:focus-visible {
  background: var(--simulation-blue-dark);
  box-shadow: 0 14px 28px rgba(11, 47, 114, 0.24);
  transform: translateY(-2px);
}

.simulation-cta:focus-visible {
  outline: 3px solid rgba(23, 78, 166, 0.25);
  outline-offset: 4px;
}

.simulation-article,
.simulation-method__inner,
.simulation-results__inner,
.simulation-cases__inner,
.simulation-final-cta__inner {
  width: min(860px, calc(100% - 44px));
  margin: 0 auto;
}

.simulation-letter,
.simulation-copy-section {
  padding: clamp(70px, 10vw, 120px) 0;
  border-bottom: 1px solid var(--simulation-line);
}

.simulation-article > section:nth-of-type(even) {
  background: #f5f7fa;
  box-shadow: 0 0 0 100vmax #f5f7fa;
  clip-path: inset(0 -100vmax);
}

.simulation-author {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-bottom: 54px;
}

.simulation-author > div {
  display: grid;
  align-content: center;
  gap: 3px;
}

.simulation-author__portrait {
  display: block;
  width: 58px;
  height: 58px;
  flex: 0 0 58px;
  border-radius: 50%;
  border: 2px solid #ffffff;
  box-shadow: 0 0 0 1px rgba(23, 78, 166, 0.16), 0 8px 20px rgba(18, 24, 38, 0.14);
  object-fit: cover;
  object-position: 50% 24%;
}

.simulation-page .simulation-article .simulation-author p {
  margin: 0;
  font-weight: 760;
  line-height: 1.3;
}

.simulation-author span {
  display: block;
  color: var(--simulation-muted);
  font-size: 0.93rem;
  line-height: 1.35;
}

.simulation-page .simulation-article p,
.simulation-page .simulation-method p,
.simulation-page .simulation-results p,
.simulation-page .simulation-final-cta p {
  margin-bottom: 22px;
}

.simulation-copy-section h2,
.simulation-method h2,
.simulation-results h2,
.simulation-cases h2,
.simulation-final-cta h2 {
  margin-bottom: 30px;
  font-size: clamp(1.75rem, 3vw, 2.65rem);
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.simulation-lead {
  color: var(--simulation-blue-dark);
  font-size: 1.22rem;
  font-weight: 720;
}

.simulation-emphasis {
  font-size: 1.16rem;
  font-weight: 760;
}

.simulation-list {
  display: grid;
  gap: 11px;
  margin: 0 0 28px;
  padding-left: 24px;
}

.simulation-list li::marker {
  color: var(--simulation-blue);
}

.simulation-copy-section blockquote {
  margin: 38px 0;
  padding: 24px 28px;
  border-left: 4px solid var(--simulation-blue);
  background: #ffffff;
  font-size: clamp(1.2rem, 2.2vw, 1.5rem);
  font-weight: 760;
  line-height: 1.45;
}

.simulation-copy-section--statement {
  background: #f5f7fa;
}

.simulation-thesis {
  border-bottom: 0;
}

.simulation-benefit-grid,
.simulation-result-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.simulation-benefit-grid li,
.simulation-result-grid li {
  position: relative;
  display: flex;
  min-height: 104px;
  align-items: center;
  overflow: hidden;
  padding: 24px 28px;
  border: 1px solid rgba(23, 78, 166, 0.13);
  border-radius: 14px;
  background:
    radial-gradient(circle at 100% 0%, rgba(23, 78, 166, 0.08), transparent 42%),
    linear-gradient(135deg, #ffffff 0%, #f8faff 100%);
  box-shadow: 0 10px 28px rgba(30, 52, 88, 0.07);
  color: #1a2333;
  font-weight: 720;
  hyphens: auto;
  line-height: 1.45;
  overflow-wrap: break-word;
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
  word-break: normal;
}

.simulation-benefit-grid li:hover,
.simulation-result-grid li:hover {
  border-color: rgba(23, 78, 166, 0.26);
  box-shadow: 0 15px 34px rgba(30, 52, 88, 0.11);
  transform: translateY(-2px);
}

.simulation-method {
  padding: clamp(80px, 11vw, 140px) 0;
  background: #f5f7fa;
}

.simulation-method__intro {
  max-width: 660px;
  color: var(--simulation-muted);
  font-size: 1.1rem;
}

.simulation-steps {
  display: grid;
  gap: 0;
  margin: 60px 0 0;
  padding: 0;
  list-style: none;
}

.simulation-steps > li {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 24px;
  padding: 44px 0;
  border-top: 1px solid #dce1e9;
}

.simulation-step__number {
  color: var(--simulation-blue);
  font-size: 1.05rem;
  font-weight: 820;
  letter-spacing: 0.08em;
}

.simulation-steps h3 {
  margin-bottom: 18px;
  font-size: clamp(1.35rem, 2.3vw, 1.85rem);
  line-height: 1.25;
}

.simulation-list--columns {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.simulation-results {
  padding: clamp(80px, 11vw, 140px) 0;
  background: #ffffff;
}

.simulation-results .simulation-emphasis {
  margin-top: 42px;
}

.simulation-cases {
  padding: clamp(80px, 11vw, 140px) 0;
  background: #f5f7fa;
}

.simulation-cases__inner {
  width: min(1120px, calc(100% - 44px));
}

.simulation-case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 48px;
}

.simulation-case-grid article {
  min-width: 0;
  padding: clamp(26px, 3vw, 38px);
  border: 1px solid var(--simulation-line);
  border-radius: 8px;
  background: #ffffff;
}

.simulation-case-grid article > span {
  display: block;
  margin-bottom: 30px;
  color: var(--simulation-blue);
  font-size: 0.8rem;
  font-weight: 820;
  letter-spacing: 0.12em;
}

.simulation-case-grid h3 {
  margin-bottom: 20px;
  font-size: 1.25rem;
  hyphens: auto;
  line-height: 1.35;
  overflow-wrap: break-word;
  word-break: normal;
}

.simulation-case-grid p {
  margin-bottom: 16px;
  color: var(--simulation-muted);
  font-size: 0.95rem;
  hyphens: auto;
  overflow-wrap: break-word;
  word-break: normal;
}

.simulation-case-grid p:last-child {
  margin-bottom: 0;
}

.simulation-final-cta {
  padding: clamp(90px, 12vw, 150px) 0;
  background: #ffffff;
  text-align: center;
}

.simulation-final-cta__inner {
  width: min(780px, calc(100% - 44px));
}

.simulation-final-cta .simulation-list {
  max-width: 650px;
  margin: 36px auto 42px;
  text-align: left;
}

.simulation-final-cta__note {
  max-width: 680px;
  margin-right: auto;
  margin-left: auto;
  color: var(--simulation-muted);
  font-size: 0.92rem;
}

.simulation-final-cta .simulation-cta {
  margin-bottom: 30px;
}

.simulation-page footer {
  border-top: 1px solid var(--simulation-line);
  background: #ffffff;
  color: var(--simulation-muted);
}

.simulation-page footer a {
  color: var(--simulation-blue-dark);
}

.product-development-page .product-development-page__avoid-list {
  margin-bottom: 42px;
}

.product-development-page .product-use-case-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.product-development-page .product-projects {
  background: #ffffff;
}

.product-development-page .simulation-final-cta {
  background: #f5f7fa;
}

@media (max-width: 920px) {
  .simulation-case-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .product-development-page .product-use-case-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 760px) {
  .simulation-hero {
    min-height: auto;
    padding-top: 82px;
    padding-bottom: 92px;
  }

  .simulation-benefit-grid,
  .simulation-result-grid,
  .simulation-list--columns,
  .simulation-case-grid {
    grid-template-columns: 1fr;
  }

  .product-development-page .product-use-case-grid {
    grid-template-columns: 1fr;
  }

  .simulation-steps > li {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .simulation-author {
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .simulation-cta,
  .simulation-benefit-grid li,
  .simulation-result-grid li {
    transition: none;
  }
}