:root {
  --bg-dark: #030712;
  --bg-alt: #f4f6fb;
  --text-dark: #0f172a;
  --text-muted: #475569;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --accent: #14b8a6;
  --border: #e2e8f0;
  --shadow: 0 20px 60px rgba(15, 23, 42, 0.12);
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--text-dark);
  background: #fff;
  font-size: 16px;
  line-height: 1.6;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(1200px, 92vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 10;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1rem 0.5rem;
}

.logo-block {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.logo-img {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  object-fit: contain;
  flex-shrink: 0;
}

.company-name {
  margin: 0;
  font-weight: 600;
  font-size: 1rem;
}

.code {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}

nav {
  display: flex;
  gap: 1rem;
  font-weight: 500;
}

nav a {
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  transition: background 0.2s ease;
}

nav a:hover {
  background: var(--bg-alt);
}

button {
  font-family: inherit;
  border: none;
  border-radius: 999px;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  cursor: pointer;
}

button.primary {
  background: var(--primary);
  color: #fff;
  transition: background 0.2s ease, transform 0.2s ease;
}

button.primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

button.ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dark);
}

button.secondary {
  background: #fff;
  border: 1px solid var(--border);
  color: var(--text-dark);
}

button.block {
  width: 100%;
}

.hero {
  background: radial-gradient(circle at top left, #dbeafe, #eff6ff);
  padding: 4rem 0;
}

.hero .container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  align-items: center;
}

.hero-text .badge {
  display: inline-flex;
  padding: 0.25rem 0.8rem;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin: 1rem 0;
  line-height: 1.2;
}

.lead {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.hero-list {
  display: flex;
  gap: 1rem;
  padding: 0;
  margin: 0;
  list-style: none;
  flex-wrap: wrap;
}

.hero-list li {
  background: rgba(255, 255, 255, 0.8);
  border-radius: 16px;
  padding: 1rem;
  flex: 1 1 140px;
}

.hero-list span {
  display: block;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--primary);
}

.hero-card {
  background: #fff;
  border-radius: 24px;
  padding: 2rem;
  box-shadow: var(--shadow);
}

.hero-card .label {
  font-size: 0.85rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-card h3 {
  margin: 0.8rem 0;
}

.hero-card ul {
  padding-left: 1.2rem;
  color: var(--text-muted);
  line-height: 1.8;
}

.hero-card .note {
  margin-top: 1.5rem;
  padding: 1rem;
  border-radius: 12px;
  background: var(--bg-alt);
  font-size: 0.9rem;
}

.section {
  padding: 4rem 0;
}

.section.alt {
  background: var(--bg-alt);
}

.section-tag {
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.section h2 {
  margin-top: 0;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
}

.two-col {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  align-items: start;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.stats-grid div {
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: 16px;
}

.stat-label {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.stat-value {
  margin: 0.3rem 0 0;
  font-weight: 600;
}

.license-card {
  background: #fff;
  border-radius: 20px;
  padding: 2rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.license-card h3 {
  margin-top: 0;
}

.license-card ul {
  padding-left: 1.2rem;
  color: var(--text-muted);
  line-height: 1.8;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.service-grid article {
  background: #fff;
  border-radius: 20px;
  padding: 1.8rem;
  border: 1px solid var(--border);
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
}

.service-grid h3 {
  margin-top: 0;
}

.service-grid ul {
  padding-left: 1.2rem;
  color: var(--text-muted);
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.solution-card {
  border-radius: 20px;
  padding: 1.8rem;
  border: 1px solid var(--border);
  background: #fff;
}

.solution-card span {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.highlight {
  background: var(--bg-dark);
  color: #fff;
}

.highlight .highlight-text ul {
  padding-left: 1.2rem;
  color: #cbd5f5;
}

.highlight .section-tag {
  color: var(--accent);
}

.milestone-card {
  background: rgba(255, 255, 255, 0.05);
  border-radius: 20px;
  padding: 2rem;
  border: 1px solid rgba(148, 163, 184, 0.2);
}

.milestone-card ol {
  padding-left: 1.2rem;
  line-height: 1.8;
}

.milestone-card span {
  font-weight: 600;
  color: var(--accent);
}

.contact-info {
  padding-left: 1.2rem;
  line-height: 1.8;
}

.contact-form {
  background: #fff;
  border-radius: 20px;
  padding: 2rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--border);
  padding: 0.75rem;
  font-family: inherit;
  font-size: 1rem;
}

.contact-form label {
  font-weight: 500;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-note {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0;
}

footer {
  background: var(--bg-dark);
  color: #94a3b8;
  padding: 1.5rem 0;
}

footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

footer a {
  color: #e2e8f0;
  margin-left: 1rem;
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  nav {
    display: none;
  }

  .site-header .container {
    padding: 0.8rem 0.3rem;
  }

  .hero-list {
    flex-direction: column;
  }

  .hero-actions {
    width: 100%;
  }

  .hero-actions button {
    flex: 1;
  }
}