:root {
  --bg: #f5f6fa;
  --surface: #ffffff;
  --text: #202228;
  --text-muted: #6f737d;
  --border: #e9eaf0;
  --accent: #6d70e8;
  --accent-soft: #eef0ff;
  --highlight: #ef7058;
  --shadow: 0 12px 40px rgba(32, 34, 40, 0.08);
  --radius: 16px;
  --max-width: 960px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

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

a:hover {
  text-decoration: underline;
}

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

.container {
  width: min(100% - 2rem, var(--max-width));
  margin-inline: auto;
}

.site-header {
  padding: 1rem 0;
}

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

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: inherit;
  text-decoration: none;
}

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

.brand-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  box-shadow: var(--shadow);
}

.brand-name {
  font-size: 1.125rem;
  font-weight: 700;
}

.nav-links {
  display: flex;
  gap: 1.25rem;
  font-size: 0.9375rem;
}

.hero {
  padding: 3rem 0 2rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  align-items: center;
}

.eyebrow {
  display: inline-block;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 4vw, 2.75rem);
  line-height: 1.15;
}

.hero-lead {
  margin: 0 0 1.5rem;
  color: var(--text-muted);
  font-size: 1.0625rem;
  max-width: 36rem;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.meta-chip {
  padding: 0.45rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  font-size: 0.875rem;
  color: var(--text-muted);
}

.hero-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 4px);
  padding: 2rem;
  box-shadow: var(--shadow);
  text-align: center;
}

.hero-card img {
  width: 120px;
  height: 120px;
  margin: 0 auto 1rem;
  border-radius: 28px;
}

.hero-card h2 {
  margin: 0 0 0.5rem;
  font-size: 1.5rem;
}

.hero-card p {
  margin: 0;
  color: var(--text-muted);
}

.section {
  padding: 2.5rem 0;
}

.section-title {
  margin: 0 0 0.5rem;
  font-size: 1.5rem;
}

.section-lead {
  margin: 0 0 1.5rem;
  color: var(--text-muted);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.feature-card,
.info-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.feature-card h3,
.info-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.0625rem;
}

.feature-card p,
.info-card p,
.info-card li {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9375rem;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.info-card dl {
  margin: 0;
}

.info-card dt {
  font-weight: 600;
  margin-top: 0.75rem;
}

.info-card dt:first-child {
  margin-top: 0;
}

.info-card dd {
  margin: 0.25rem 0 0;
  color: var(--text-muted);
}

.contact-box {
  background: linear-gradient(135deg, #ffffff 0%, #eef0ff 100%);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) + 4px);
  padding: 1.5rem;
}

.contact-box p {
  margin: 0;
  color: var(--text-muted);
}

.site-footer {
  padding: 2rem 0 3rem;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.875rem;
}

.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
}

.legal-page {
  padding: 2rem 0 3rem;
}

.legal-page h1 {
  margin-top: 0;
}

.legal-page h2 {
  margin-top: 2rem;
  font-size: 1.125rem;
}

.legal-page p,
.legal-page li {
  color: var(--text-muted);
}

@media (max-width: 800px) {
  .hero-grid,
  .feature-grid,
  .info-grid {
    grid-template-columns: 1fr;
  }

  .nav-links {
    display: none;
  }

  .hero {
    padding-top: 1.5rem;
  }
}