:root {
  --brand-red: #c93131;
  --brand-blue: #2e6fa3;
  --brand-blue-dark: #123a5a;
  --brand-bg: #eef3f8;
  --text-main: #1f2a36;
  --text-muted: #5f6f7f;
  --card-border: #d8e2ed;
}

body {
  color: var(--text-main);
  background: #ffffff;
}

.page-shell {
  min-height: 100vh;
  background:
    radial-gradient(circle at 8% 12%, rgba(46, 111, 163, 0.12) 0 120px, transparent 121px),
    radial-gradient(circle at 96% 78%, rgba(46, 111, 163, 0.12) 0 140px, transparent 141px),
    linear-gradient(180deg, #ffffff 0%, var(--brand-bg) 100%);
}

#mainNav {
  background-color: rgba(18, 58, 90, 0.95);
}

#mainNav .navbar-brand {
  padding: 0;
  margin-right: 0.8rem;
}

.company-brand {
  display: grid;
  line-height: 1.1;
}

.company-cn {
  font-size: 1.06rem;
  font-weight: 700;
  color: #ffffff;
}

.company-en {
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.85);
}

#mainNav .navbar-nav .nav-item .nav-link {
  font-size: 0.82rem;
  letter-spacing: 0.05em;
}

#mainNav .navbar-nav .nav-item .nav-link.active,
#mainNav .navbar-nav .nav-item .nav-link:hover {
  color: #ffffff;
  border-bottom: 2px solid var(--brand-red);
}

.btn-primary {
  background-color: var(--brand-red);
  border-color: var(--brand-red);
}

.btn-primary:hover,
.btn-primary:focus {
  background-color: #aa2626;
  border-color: #aa2626;
}

.hero-home {
  padding-top: 11.5rem;
  padding-bottom: 6rem;
  color: #ffffff;
  background-image:
    linear-gradient(120deg, rgba(9, 31, 49, 0.84), rgba(11, 62, 96, 0.64)),
    url('../assets/brochure-pages/page-01.jpg');
  background-position: center;
  background-size: cover;
}

.hero-home h1 {
  font-size: clamp(1.9rem, 4vw, 3rem);
  text-transform: uppercase;
}

.hero-home .lead {
  max-width: 760px;
  color: rgba(255, 255, 255, 0.9);
}

.hero-page {
  padding-top: 8.4rem;
  padding-bottom: 3rem;
  color: #ffffff;
  background:
    linear-gradient(110deg, rgba(18, 58, 90, 0.96), rgba(46, 111, 163, 0.9));
}

.hero-page h1 {
  margin: 0;
  font-size: clamp(1.45rem, 3vw, 2.1rem);
}

.hero-page p {
  margin-top: 0.65rem;
  margin-bottom: 0;
  color: rgba(255, 255, 255, 0.88);
}

.page-section {
  padding: 4.5rem 0;
}

.section-title {
  margin-bottom: 0.5rem;
  color: var(--brand-blue-dark);
}

.section-subtitle {
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.info-card {
  border: 1px solid var(--card-border);
  border-radius: 12px;
  background: #ffffff;
  box-shadow: 0 8px 24px rgba(14, 38, 58, 0.08);
}

.info-card img {
  width: 100%;
  border-radius: 12px 12px 0 0;
  display: block;
}

.info-card .card-body {
  padding: 1.05rem 1.1rem;
}

.kpi-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.kpi-item {
  background: #ffffff;
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 1rem;
  text-align: center;
}

.kpi-item .num {
  display: block;
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--brand-red);
}

.kpi-item .label {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.92rem;
  color: var(--text-muted);
}

.product-grid {
  display: grid;
  gap: 1.2rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.product-item {
  border: 1px solid var(--card-border);
  border-radius: 12px;
  background: #ffffff;
  overflow: hidden;
}

.product-item img {
  width: 100%;
  height: 340px;
  display: block;
  object-fit: contain;
  object-position: center;
  background: #f4f4f4;
}

.product-item .body {
  padding: 0.95rem 1rem 1rem;
}

.badge-soft {
  display: inline-block;
  margin-right: 0.4rem;
  margin-bottom: 0.45rem;
  padding: 0.28rem 0.62rem;
  border-radius: 999px;
  font-size: 0.75rem;
  background: #edf4fb;
  color: var(--brand-blue-dark);
}

.list-clean {
  margin: 0;
  padding-left: 1.1rem;
}

.list-clean li {
  margin-bottom: 0.5rem;
}

.cert-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.cert-item {
  border: 1px solid var(--card-border);
  border-radius: 12px;
  background: #ffffff;
  overflow: hidden;
}

.cert-item img {
  width: 100%;
  display: block;
}

.cert-item p {
  padding: 0.75rem 0.85rem 0.95rem;
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.contact-panel {
  border: 1px solid var(--card-border);
  border-radius: 12px;
  background: #ffffff;
  padding: 1.3rem;
}

.contact-panel p {
  margin-bottom: 0.65rem;
}

.form-card {
  border: 1px solid var(--card-border);
  border-radius: 12px;
  background: #ffffff;
  padding: 1.2rem;
}

.form-label {
  font-weight: 600;
  font-size: 0.9rem;
}

.footer {
  padding: 1.2rem 0;
  background: #0f314d;
  color: rgba(255, 255, 255, 0.85);
  text-align: center;
}

@media (max-width: 992px) {
  .kpi-grid,
  .cert-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .product-grid {
    grid-template-columns: 1fr;
  }

  .hero-home {
    padding-top: 8.8rem;
  }
}

@media (max-width: 576px) {
  .company-cn {
    font-size: 0.88rem;
  }

  .company-en {
    font-size: 0.61rem;
  }

  #mainNav .navbar-nav .nav-item .nav-link {
    letter-spacing: 0.02em;
  }

  .kpi-grid,
  .cert-grid {
    grid-template-columns: 1fr;
  }

}