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

:root {
  --color-primary: #1e3a5f;
  --color-primary-light: #2a5080;
  --color-text: #333;
  --color-text-muted: #666;
  --color-bg: #fff;
  --color-bg-alt: #f5f7fa;
  --color-border: #e2e8f0;
  --max-width: 960px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, "Noto Sans SC", sans-serif;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.site-header {
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
}

.logo:hover {
  text-decoration: none;
  color: var(--color-primary-light);
}

.nav {
  display: flex;
  gap: 1.5rem;
}

.nav a {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  text-decoration: none;
}

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

.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, #2a5080 100%);
  color: #fff;
  padding: 4rem 0;
  text-align: center;
}

.hero h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.hero .subtitle {
  font-size: 1rem;
  opacity: 0.9;
}

.section {
  padding: 3rem 0;
}

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

.section h2 {
  font-size: 1.375rem;
  color: var(--color-primary);
  margin-bottom: 1.25rem;
}

.section p {
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.info-table {
  width: 100%;
  border-collapse: collapse;
}

.info-table th,
.info-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.info-table th {
  width: 10rem;
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
}

.info-table td {
  color: var(--color-text-muted);
}

.contact-email {
  font-size: 1.125rem;
}

.contact-email a {
  font-weight: 600;
}

.privacy-content h2 {
  font-size: 1.125rem;
  color: var(--color-primary);
  margin: 2rem 0 0.75rem;
}

.privacy-content h2:first-child {
  margin-top: 0;
}

.privacy-content p,
.privacy-content li {
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
}

.privacy-content ul {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.page-title {
  font-size: 1.75rem;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.page-meta {
  color: var(--color-text-muted);
  font-size: 0.875rem;
  margin-bottom: 2rem;
}

.site-footer {
  margin-top: auto;
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding: 1.5rem 0;
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.875rem;
}

@media (max-width: 640px) {
  .hero h1 {
    font-size: 1.375rem;
  }

  .info-table th {
    width: 6rem;
    font-size: 0.875rem;
  }

  .info-table td {
    font-size: 0.875rem;
  }

  .header-inner {
    height: 3.5rem;
  }
}