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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Noto Sans SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  color: #1f2937;
  background: #f7f8fb;
  line-height: 1.7;
}

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

img {
  width: 100%;
  display: block;
  border-radius: 16px;
}

.container {
  width: min(1200px, 90%);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: #ffffff;
  border-bottom: 1px solid #e5e7eb;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.logo {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, #1d4ed8, #38bdf8);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
  letter-spacing: 1px;
}

.brand-name {
  font-size: 1.05rem;
  font-weight: 700;
}

.brand-tagline {
  font-size: 0.9rem;
  color: #64748b;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.95rem;
}

.site-nav a {
  padding: 6px 10px;
  border-radius: 999px;
  background: #eff6ff;
}

.hero {
  padding: 60px 0 40px;
  background: linear-gradient(180deg, #eff6ff 0%, #f7f8fb 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 36px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2rem, 2.6vw + 1.2rem, 3rem);
  margin-bottom: 14px;
  color: #1e3a8a;
}

.hero-actions {
  display: flex;
  gap: 12px;
  margin: 22px 0;
}

.button {
  padding: 12px 22px;
  border-radius: 999px;
  border: 1px solid #2563eb;
  font-weight: 600;
}

.button.primary {
  background: #2563eb;
  color: #fff;
}

.button.ghost {
  background: transparent;
  color: #2563eb;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  background: #e0f2fe;
  padding: 16px;
  border-radius: 16px;
}

.stat-number {
  display: block;
  font-weight: 700;
  color: #1e3a8a;
}

.stat-label {
  font-size: 0.85rem;
  color: #475569;
}

.section {
  padding: 56px 0;
}

.section-muted {
  background: #f1f5f9;
}

.section-title {
  margin-bottom: 26px;
}

.section-title h2 {
  margin: 0 0 10px;
  color: #1e3a8a;
}

.grid-3,
.grid-2 {
  display: grid;
  gap: 20px;
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
  background: #fff;
  padding: 22px;
  border-radius: 16px;
  box-shadow: 0 10px 22px rgba(30, 64, 175, 0.08);
}

.media-grid {
  display: grid;
  gap: 24px;
}

.media-card {
  display: grid;
  grid-template-columns: minmax(220px, 0.9fr) minmax(220px, 1.1fr);
  gap: 20px;
  align-items: center;
  background: #fff;
  padding: 20px;
  border-radius: 18px;
  box-shadow: 0 10px 22px rgba(30, 64, 175, 0.08);
}

.list-grid {
  display: grid;
  gap: 16px;
}

.list-card {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 16px;
  background: #fff;
  padding: 16px;
  border-radius: 16px;
  align-items: center;
  box-shadow: 0 10px 20px rgba(15, 23, 42, 0.06);
}

.badge {
  display: inline-block;
  margin-top: 8px;
  padding: 4px 10px;
  border-radius: 999px;
  background: #dbeafe;
  color: #1e3a8a;
  font-size: 0.85rem;
}

.bullet-list {
  margin: 12px 0 0;
  padding-left: 20px;
}

.bullet-list li {
  margin-bottom: 6px;
}

.section-actions {
  margin-top: 16px;
}

.text-link {
  color: #1d4ed8;
  font-weight: 600;
}

.site-footer {
  padding: 30px 0;
  background: #0f172a;
  color: #e2e8f0;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: space-between;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.9rem;
}

@media (max-width: 900px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .media-card {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 600px) {
  .hero-actions {
    flex-direction: column;
  }
}