.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(330px, 0.94fr);
  gap: clamp(34px, 6vw, 74px);
  align-items: center;
  min-height: calc(100vh - 220px);
  padding-top: 32px;
  padding-bottom: 22px;
}

.hero__content {
  display: grid;
  gap: 18px;
}

.hero__lead {
  color: var(--color-primary-dark);
  font-family: var(--font-latin);
  font-size: 1.22rem;
  font-weight: 800;
}

.hero__copy,
.section-message,
.feature-product p,
.about-contact p {
  color: var(--color-muted);
  font-size: 1.02rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 8px;
}

.system-visual {
  min-height: 380px;
}

.system-visual__panel {
  position: relative;
  overflow: hidden;
  width: min(100%, 430px);
  aspect-ratio: 1 / 1.08;
  margin-left: auto;
  border: 1px solid rgba(13, 125, 104, 0.2);
  border-radius: var(--radius-sm);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.94), rgba(237, 243, 241, 0.78)),
    radial-gradient(circle at 18% 22%, rgba(212, 79, 49, 0.18), transparent 30%);
  box-shadow: var(--shadow-soft);
}

.system-visual__panel::before {
  position: absolute;
  inset: 22px;
  content: "";
  border: 1px solid rgba(13, 125, 104, 0.16);
  border-radius: var(--radius-sm);
  background-image:
    linear-gradient(rgba(13, 125, 104, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(13, 125, 104, 0.12) 1px, transparent 1px);
  background-size: 42px 42px;
}

.node {
  position: absolute;
  z-index: 2;
  display: grid;
  width: clamp(64px, 9vw, 88px);
  aspect-ratio: 1;
  place-items: center;
  border: 1px solid rgba(20, 32, 29, 0.12);
  border-radius: var(--radius-sm);
  background: #fff;
  box-shadow: var(--shadow-small);
  color: var(--color-ink);
  font-family: var(--font-latin);
  font-weight: 800;
}

.node--core {
  top: 40%;
  left: 40%;
  background: var(--color-ink);
  color: #fff;
}

.node--ops { top: 14%; left: 18%; }
.node--data { top: 18%; right: 16%; }
.node--ux { bottom: 18%; left: 14%; }
.node--api { right: 12%; bottom: 18%; }
.node--flow { left: 40%; bottom: 5%; color: var(--color-primary-dark); }

.line {
  position: absolute;
  z-index: 1;
  height: 2px;
  background: linear-gradient(90deg, rgba(13, 125, 104, 0), rgba(13, 125, 104, 0.58), rgba(13, 125, 104, 0));
  transform-origin: left center;
}

.line--a { top: 31%; left: 31%; width: 210px; transform: rotate(12deg); }
.line--b { top: 54%; left: 22%; width: 260px; transform: rotate(-25deg); }
.line--c { top: 67%; left: 27%; width: 230px; transform: rotate(24deg); }
.line--d { top: 78%; left: 43%; width: 135px; transform: rotate(90deg); }

.signal {
  position: absolute;
  z-index: 3;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--color-accent);
  box-shadow: 0 0 0 8px rgba(212, 79, 49, 0.14);
}

.signal--one { top: 30%; left: 58%; }
.signal--two { top: 62%; left: 30%; background: var(--color-gold); }
.signal--three { right: 25%; bottom: 24%; }

.product-section {
  border-top: 1px solid var(--color-line);
}

.feature-product {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.8fr);
  gap: clamp(28px, 5vw, 58px);
  align-items: center;
  padding: clamp(26px, 5vw, 48px);
  border-radius: var(--radius-sm);
  background: #fff;
  box-shadow: var(--shadow-soft);
}

.feature-product__body {
  display: grid;
  gap: 16px;
}

.feature-product__catch {
  color: var(--color-ink);
  font-size: 1.42rem;
  font-weight: 700;
}

.qboard-preview {
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-subtle);
}

.qboard-preview__bar {
  display: flex;
  gap: 7px;
  padding: 14px;
  background: #fff;
  border-bottom: 1px solid var(--color-line);
}

.qboard-preview__bar span {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--color-line);
}

.qboard-preview__score {
  display: grid;
  gap: 4px;
  padding: 20px;
}

.qboard-preview__score strong {
  font-family: var(--font-latin);
  font-size: 2rem;
}

.qboard-preview__score span {
  color: var(--color-muted);
  font-family: var(--font-latin);
  font-size: 0.86rem;
  font-weight: 700;
}

.qboard-preview__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  padding: 0 20px 20px;
}

.qboard-preview__grid span {
  display: grid;
  min-height: 50px;
  place-items: center;
  background: #fff;
  color: var(--color-muted);
  font-family: var(--font-latin);
  font-weight: 800;
}

.qboard-preview__grid .is-hit {
  color: var(--color-primary);
  font-size: 1.3rem;
}

.project-list,
.insight-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 24px;
}

.insight-section {
  border-top: 1px solid var(--color-line);
}

.insight-list {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.insight-item {
  display: grid;
  gap: 10px;
  padding-block: 20px;
  border-top: 2px solid var(--color-primary);
}

.insight-item span {
  font-family: var(--font-latin);
  font-weight: 800;
}

.about-contact {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.7fr);
  gap: clamp(30px, 6vw, 72px);
  align-items: start;
  border-top: 1px solid var(--color-line);
}

.about-contact__about {
  display: grid;
  gap: 18px;
}

.contact-form {
  display: grid;
  gap: 16px;
  padding: 26px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: #fff;
  box-shadow: var(--shadow-small);
}

.contact-form label {
  display: grid;
  gap: 7px;
  color: var(--color-muted);
  font-size: 0.9rem;
  font-weight: 700;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-xs);
  padding: 12px 14px;
  background: var(--color-paper);
  color: var(--color-ink);
}

.contact-form textarea {
  resize: vertical;
}

@media (max-width: 900px) {
  .hero,
  .feature-product,
  .about-contact {
    grid-template-columns: 1fr;
  }

  .system-visual {
    min-height: auto;
  }

  .system-visual__panel {
    margin-inline: auto;
  }

  .insight-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .project-list {
    grid-template-columns: 1fr;
  }

  .system-visual {
    display: none;
  }

  .hero__lead,
  .feature-product__catch {
    font-size: 1.08rem;
  }
}