.system-body .desktop-nav a.is-active::after {
  background: linear-gradient(90deg, rgba(92, 170, 255, 0), #6cb6ff, rgba(92, 170, 255, 0));
}

.system-hero-panel::before {
  background:
    linear-gradient(135deg, rgba(1, 13, 38, 0.99), rgba(6, 24, 63, 0.95) 50%, rgba(3, 14, 37, 0.99)),
    radial-gradient(circle at 76% 22%, rgba(67, 132, 255, 0.14), transparent 24%);
}

.system-hero-card {
  padding-bottom: 24px;
}

.system-hero-copy h1 {
  font-size: clamp(3.05rem, 4.45vw, 4.95rem);
}

.system-hero-visual {
  min-height: 392px;
  margin-bottom: 10px;
  border-color: rgba(107, 171, 255, 0.2);
}

.system-hero-factory {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: saturate(0.85) brightness(0.76);
}

.system-hero-overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(5, 19, 45, 0.08), rgba(6, 20, 46, 0.42)),
    linear-gradient(90deg, rgba(3, 14, 38, 0.12), rgba(3, 14, 38, 0.02));
  z-index: 1;
}

.system-light-panel {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.985), rgba(245, 249, 255, 0.965)),
    radial-gradient(circle at right top, rgba(81, 151, 255, 0.08), transparent 18%);
}

.system-split-shell {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  align-items: center;
  gap: 40px;
}

.system-split-reverse {
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
}

.system-copy-block,
.system-module-board,
.system-process-board,
.system-scenario-grid {
  position: relative;
  z-index: 1;
}

.system-section-head {
  margin-bottom: 0;
}

.system-feature-list {
  display: grid;
  gap: 18px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.system-feature-list li {
  padding: 18px 22px;
  border: 1px solid rgba(113, 174, 255, 0.16);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 14px 30px rgba(18, 48, 98, 0.06);
}

.system-feature-list strong {
  display: block;
  color: var(--text-main);
  font-size: 1.08rem;
}

.system-feature-list span {
  display: block;
  margin-top: 10px;
  color: var(--text-mid);
  line-height: 1.75;
}

.system-module-board {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  padding: 18px;
  border: 1px solid rgba(110, 171, 255, 0.16);
  border-radius: 30px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(246, 250, 255, 0.98)),
    radial-gradient(circle at right top, rgba(89, 154, 255, 0.08), transparent 30%);
  box-shadow: 0 18px 46px rgba(16, 48, 98, 0.08);
}

.system-module-card {
  min-height: 154px;
  padding: 22px 20px;
  border: 1px solid rgba(111, 175, 255, 0.14);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.78);
}

.system-module-card i {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  border-radius: 16px;
  color: var(--primary);
  font-size: 20px;
  background: linear-gradient(180deg, rgba(54, 121, 255, 0.08), rgba(54, 121, 255, 0.03));
}

.system-module-card h3 {
  margin: 18px 0 0;
  color: var(--text-main);
  font-size: 1.16rem;
}

.system-module-card p {
  margin: 12px 0 0;
  color: var(--text-mid);
  line-height: 1.75;
}

.system-process-board {
  padding: 26px 24px;
  border: 1px solid rgba(111, 175, 255, 0.18);
  border-radius: 30px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.97), rgba(246, 250, 255, 0.985)),
    radial-gradient(circle at left top, rgba(89, 154, 255, 0.08), transparent 28%);
  box-shadow: 0 18px 44px rgba(16, 48, 98, 0.08);
}

.system-process-head span,
.system-process-head strong {
  display: block;
}

.system-process-head span {
  color: var(--primary);
  font-size: 14px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.system-process-head strong {
  margin-top: 10px;
  color: var(--text-main);
  font-size: 1.42rem;
  line-height: 1.45;
}

.system-capability-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 20px;
  align-content: start;
}

.system-capability-card {
  min-height: 158px;
  padding: 18px 18px 16px;
  border: 1px solid rgba(111, 175, 255, 0.14);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 14px 30px rgba(18, 48, 98, 0.06);
}

.system-capability-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(54, 121, 255, 0.08), rgba(54, 121, 255, 0.03));
}

.system-capability-icon i {
  color: var(--primary);
  font-size: 17px;
}

.system-capability-card h3 {
  margin: 14px 0 0;
  color: var(--text-main);
  font-size: 1.04rem;
}

.system-capability-card p {
  margin: 9px 0 0;
  color: var(--text-mid);
  font-size: 0.94rem;
  line-height: 1.65;
}

.system-bullets {
  margin-top: 28px;
}

.system-scenarios-panel {
  background:
    radial-gradient(circle at top right, rgba(81, 151, 255, 0.08), transparent 16%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.985), rgba(245, 249, 255, 0.985));
}

.system-scenario-points {
  display: grid;
  gap: 16px;
  margin-top: 26px;
}

.system-scenario-points article {
  padding: 18px 20px;
  border-left: 3px solid rgba(40, 117, 255, 0.72);
  background: rgba(255, 255, 255, 0.72);
  border-radius: 0 18px 18px 0;
}

.system-scenario-points strong {
  display: block;
  color: var(--text-main);
  font-size: 1.08rem;
}

.system-scenario-points p {
  margin: 10px 0 0;
  color: var(--text-mid);
  line-height: 1.75;
}

.system-scenario-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.system-scenario-card:first-child {
  grid-column: 1 / -1;
}

.system-scenario-card img {
  aspect-ratio: 4 / 1.92;
}

.system-scenarios-panel .detail-cta-band {
  grid-column: 1 / -1;
  margin-top: 10px;
  padding: 24px 30px;
}

.system-scenarios-panel .detail-cta-copy h2 {
  font-size: clamp(2rem, 2.45vw, 2.95rem);
}

.system-scenarios-panel .detail-cta-copy p {
  margin-top: 8px;
}

.system-scenarios-panel .detail-cta-actions {
  flex: 0 0 auto;
}

.system-scenarios-panel .detail-cta-actions .primary-btn,
.system-scenarios-panel .detail-cta-actions .detail-ghost-btn {
  min-width: 168px;
  white-space: nowrap;
}

.system-scenarios-panel .detail-cta-actions .detail-ghost-btn {
  justify-content: center;
  text-align: center;
}

.system-scenarios-panel .detail-cta-actions .detail-ghost-btn i {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.system-scenarios-panel .system-section-head h2 {
  max-width: 620px;
  font-size: clamp(2.55rem, 3vw, 3.75rem);
  line-height: 1.1;
}

.system-scenario-card .detail-scenario-copy {
  padding: 18px 22px 20px;
}

.system-scenario-card .detail-scenario-copy h3 {
  font-size: 1.28rem;
}

.system-scenario-card .detail-scenario-copy p {
  margin-top: 10px;
  font-size: 0.96rem;
  line-height: 1.72;
}

@media (min-width: 1200px) {
  #functions .system-split-reverse {
    grid-template-columns: minmax(0, 1.24fr) minmax(0, 0.76fr);
    align-items: stretch;
    gap: 30px;
  }

  #functions .system-process-board {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 520px;
    padding: 30px 26px;
  }

  #functions .system-process-head strong {
    font-size: 1.5rem;
  }

  #functions .system-capability-grid {
    flex: 1;
    gap: 16px;
    margin-top: 22px;
  }

  #functions .system-capability-card {
    min-height: 170px;
    padding: 20px 18px 18px;
  }

  #functions .system-copy-block {
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  #functions .system-section-head h2 {
    max-width: 620px;
  }

  #functions .system-bullets {
    margin-top: 24px;
  }

  #scenarios .system-split-shell {
    grid-template-columns: minmax(0, 0.98fr) minmax(0, 1.02fr);
    align-items: start;
    gap: 28px;
  }

  #scenarios .system-scenario-grid {
    width: 94%;
    margin-left: auto;
    gap: 14px;
  }

  #scenarios .system-scenario-card img {
    aspect-ratio: 4 / 1.72;
  }

  #scenarios .system-scenario-card .detail-scenario-copy {
    padding: 16px 20px 18px;
  }

  #scenarios .system-scenario-card .detail-scenario-copy h3 {
    font-size: 1.2rem;
  }

  #scenarios .system-scenario-card .detail-scenario-copy p {
    font-size: 0.92rem;
    line-height: 1.65;
  }
}

@media (max-width: 1199px) {
  .system-split-shell,
  .system-split-reverse {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .system-hero-visual {
    min-height: 360px;
  }

  .system-command-surface {
    inset: 18px;
  }

  .system-command-grid {
    width: 100%;
  }

  .system-scenarios-panel .detail-cta-band {
    grid-column: auto;
    padding: 24px;
  }

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

@media (max-width: 899px) {
  .system-hero-card {
    padding-bottom: 26px;
  }

  .system-hero-copy h1 {
    font-size: clamp(2.6rem, 9vw, 3.8rem);
  }

  .system-hero-visual {
    min-height: 320px;
  }

  .system-command-grid,
  .system-module-board,
  .system-scenario-grid {
    grid-template-columns: 1fr;
  }

  .system-command-card-main {
    max-width: none;
  }

  .system-capability-grid {
    grid-template-columns: 1fr;
  }

  .system-scenario-card:first-child {
    grid-column: auto;
  }
}

@media (max-width: 639px) {
  .system-hero-visual {
    min-height: 260px;
  }

  .system-command-surface {
    inset: 14px;
  }

  .system-command-card,
  .system-module-card,
  .system-scenario-points article {
    padding: 16px;
  }

  .system-process-board {
    padding: 22px 18px;
  }

  .system-capability-card {
    min-height: auto;
  }
}