:root {
  --primary: #2c5f8c;
  --primary-dark: #1e4466;
  --primary-light: #4778a6;
  --bg: #f5f6f2;
  --surface: #ffffff;
  --text: #191c1f;
  --text-secondary: #5b5e68;
  --text-muted: #8a99ad;
  --border: #e8e9ec;
  --radius: 16px;
  --shadow: 0 8px 32px rgba(44, 95, 140, 0.08);
  --max-width: 960px;
  --content-width: 720px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  text-decoration: underline;
}

/* Header */
.site-header {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  font-size: 1.125rem;
  color: var(--text);
  text-decoration: none;
}

.brand:hover {
  text-decoration: none;
}

.brand img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  object-fit: cover;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  font-size: 0.9rem;
}

.nav a {
  color: var(--text-secondary);
  text-decoration: none;
}

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

/* Hero */
.hero {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 64px 24px 48px;
  text-align: center;
}

.hero-logo {
  width: 120px;
  height: 120px;
  border-radius: 28px;
  box-shadow: var(--shadow);
  margin-bottom: 28px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  color: var(--text);
}

.hero .tagline {
  font-size: 1.125rem;
  color: var(--text-muted);
  margin-bottom: 32px;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: #fff;
  padding: 14px 28px;
  border-radius: 14px;
  font-weight: 600;
  text-decoration: none;
  box-shadow: 0 4px 16px rgba(44, 95, 140, 0.3);
}

.hero-cta:hover {
  background: var(--primary-dark);
  text-decoration: none;
}

.hero-cta-pending {
  display: inline-flex;
  align-items: center;
  background: var(--surface);
  color: var(--text-secondary);
  padding: 14px 28px;
  border-radius: 14px;
  font-weight: 600;
  border: 1px solid var(--border);
  box-shadow: none;
  cursor: default;
}

/* Sections */
.section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px 64px;
}

.section-title {
  text-align: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 32px;
  color: var(--text);
}

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

.feature-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 28px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.feature-card .icon {
  font-size: 1.75rem;
  margin-bottom: 12px;
}

.feature-card h3 {
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Legal pages */
.legal-page {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 40px 24px 80px;
}

.legal-page h1 {
  font-size: 1.75rem;
  margin-bottom: 8px;
}

.legal-meta {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.legal-page h2 {
  font-size: 1.125rem;
  margin: 32px 0 12px;
  color: var(--primary);
}

.legal-page p,
.legal-page li {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.legal-page ul,
.legal-page ol {
  padding-left: 1.5rem;
  margin-bottom: 16px;
}

.legal-page table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  margin: 16px 0;
}

.legal-page th,
.legal-page td {
  border: 1px solid var(--border);
  padding: 10px 12px;
  text-align: left;
}

.legal-page th {
  background: #f0f4f8;
  font-weight: 600;
  color: var(--text);
}

.highlight-box {
  background: #eef4f9;
  border-left: 4px solid var(--primary);
  padding: 16px 20px;
  border-radius: 0 12px 12px 0;
  margin: 20px 0;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Footer */
.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 40px 24px;
  margin-top: 40px;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  text-align: center;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 24px;
  margin-bottom: 16px;
  font-size: 0.875rem;
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Privacy badges */
.badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 40px;
}

.badge {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

@media (max-width: 600px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .legal-page table {
    font-size: 0.75rem;
  }

  .legal-page th,
  .legal-page td {
    padding: 8px;
  }
}