* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --primary: #0a4a8f;
  --primary-dark: #063565;
  --accent: #1aa3b8;
  --text: #1a1f2b;
  --muted: #586174;
  --bg: #f5f7fb;
  --card: #ffffff;
  --border: #e4e8f1;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  color: var(--text);
  background: #ffffff;
  line-height: 1.7;
}

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

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

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

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

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
  gap: 16px;
}

.brand {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.brand-name {
  font-weight: 700;
  font-size: 22px;
  color: var(--primary);
}

.brand-tag {
  font-size: 14px;
  color: var(--muted);
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 14px;
  color: var(--muted);
}

.site-nav a:hover {
  color: var(--primary);
}

.hero {
  background: linear-gradient(135deg, rgba(10, 74, 143, 0.08), rgba(26, 163, 184, 0.1));
  padding: 72px 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
  align-items: center;
}

.hero-text h1 {
  font-size: clamp(28px, 3vw, 40px);
  margin-bottom: 16px;
  color: var(--primary-dark);
}

.hero-text p {
  color: var(--muted);
  margin-bottom: 24px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button {
  background: var(--primary);
  color: #ffffff;
  padding: 10px 20px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  transition: transform 0.2s ease, background 0.2s ease;
}

.button:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}

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

.section {
  padding: 70px 0;
}

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

.section h2 {
  font-size: clamp(22px, 2.4vw, 30px);
  margin-bottom: 18px;
  color: var(--primary-dark);
}

.content-block {
  color: var(--muted);
  display: grid;
  gap: 16px;
  margin-bottom: 28px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.card {
  background: var(--card);
  padding: 20px;
  border-radius: 16px;
  border: 1px solid var(--border);
  box-shadow: 0 10px 24px rgba(10, 74, 143, 0.06);
}

.card h3 {
  margin-bottom: 10px;
  color: var(--primary);
  font-size: 18px;
}

.card p {
  color: var(--muted);
  font-size: 14px;
}

.list-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.bullet-list {
  list-style: none;
  display: grid;
  gap: 10px;
  color: var(--muted);
}

.bullet-list li {
  padding-left: 18px;
  position: relative;
}

.bullet-list li::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  position: absolute;
  left: 0;
  top: 9px;
}

.highlight {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  align-items: center;
}

.highlight h3 {
  color: var(--primary);
  margin-bottom: 12px;
}

.cta {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.site-footer {
  background: #0a2042;
  color: #dbe4f5;
  padding: 50px 0 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  margin-bottom: 24px;
}

.footer-list {
  list-style: none;
  display: grid;
  gap: 8px;
}

.footer-list a {
  color: #dbe4f5;
}

.footer-bottom {
  border-top: 1px solid rgba(219, 228, 245, 0.2);
  padding-top: 12px;
  font-size: 13px;
  text-align: center;
}

.page-hero {
  padding: 60px 0 40px;
  background: linear-gradient(135deg, rgba(10, 74, 143, 0.08), rgba(26, 163, 184, 0.12));
}

.page-hero h1 {
  font-size: clamp(26px, 3vw, 36px);
  color: var(--primary-dark);
  margin-bottom: 12px;
}

.page-hero p {
  color: var(--muted);
  max-width: 720px;
}

.list-page {
  padding: 50px 0 70px;
}

.list-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  display: grid;
  gap: 10px;
  box-shadow: 0 12px 24px rgba(10, 74, 143, 0.05);
}

.list-card h3 {
  color: var(--primary);
  font-size: 18px;
}

.list-card p {
  color: var(--muted);
  font-size: 14px;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--primary);
  background: rgba(10, 74, 143, 0.08);
  padding: 4px 10px;
  border-radius: 999px;
  width: fit-content;
}

.list-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.info-card {
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: #ffffff;
}

.info-card h3 {
  color: var(--primary);
  margin-bottom: 8px;
}

@media (max-width: 768px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-nav {
    width: 100%;
  }
}