:root {
  --brand-primary: #0078d4;
  --brand-primary-deep: #0a4fb3;
  --brand-accent: #50e6ff;
  --bg: #f5f9ff;
  --surface: #ffffff;
  --text-main: #1b1b1f;
  --text-muted: #5a5f69;
  --border: #d9e4f5;
  --success: #107c10;
  --radius: 14px;
  --container: 1160px;
  --shadow: 0 12px 28px rgba(16, 49, 109, 0.12);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: "Segoe UI", "Inter", "Helvetica Neue", Arial, sans-serif;
  color: var(--text-main);
  background: var(--bg);
  line-height: 1.65;
}

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

a:hover {
  text-decoration: underline;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 76px;
  gap: 16px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-main);
  text-decoration: none;
}

.brand img {
  width: 40px;
  height: 40px;
}

.brand strong {
  font-size: 1rem;
  display: block;
}

.brand span {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.menu-toggle {
  display: none;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 10px;
  padding: 8px 10px;
  cursor: pointer;
}

.nav-links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--text-main);
  font-size: 0.95rem;
  padding: 8px 10px;
  border-radius: 8px;
}

.nav-links a[aria-current="page"] {
  color: var(--brand-primary-deep);
  background: #e9f4ff;
  font-weight: 600;
}

.hero {
  padding: 84px 0 64px;
  background: radial-gradient(circle at 20% 10%, #e9f4ff, transparent 55%),
    linear-gradient(180deg, #f9fcff 0%, #f5f9ff 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 28px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2rem, 3vw, 3rem);
  line-height: 1.2;
  margin: 0 0 16px;
}

.hero p {
  margin: 0 0 20px;
  color: var(--text-muted);
}

.hero-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}

.hero-card h3 {
  margin-top: 0;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 11px 18px;
  border-radius: 10px;
  border: 1px solid transparent;
  font-weight: 600;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--brand-primary), var(--brand-primary-deep));
  color: #fff;
}

.btn-primary:hover,
.btn-outline:hover {
  text-decoration: none;
  opacity: 0.93;
}

.btn-outline {
  border-color: var(--brand-primary);
  color: var(--brand-primary);
  background: #fff;
}

.section {
  padding: 64px 0;
}

.section h2 {
  margin-top: 0;
  font-size: clamp(1.5rem, 2.4vw, 2.15rem);
  line-height: 1.2;
}

.section p.lead {
  color: var(--text-muted);
  max-width: 800px;
}

.grid {
  display: grid;
  gap: 18px;
}

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

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

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
}

.card h3 {
  margin-top: 0;
  margin-bottom: 10px;
  font-size: 1.15rem;
}

.tag {
  display: inline-flex;
  border: 1px solid #cfe6ff;
  color: var(--brand-primary-deep);
  background: #eef7ff;
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 0.8rem;
  margin-bottom: 8px;
}

.info-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.info-list li {
  padding: 10px 0;
  border-bottom: 1px dashed var(--border);
}

.info-list li:last-child {
  border-bottom: 0;
}

.policy {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}

.policy h1,
.policy h2,
.policy h3 {
  color: #101828;
}

.policy h1 {
  margin-top: 0;
}

.policy h2 {
  margin-top: 28px;
}

.notice {
  border-left: 4px solid var(--brand-primary);
  padding: 10px 14px;
  margin: 18px 0;
  background: #eff7ff;
  color: #123b72;
}

.site-footer {
  margin-top: 44px;
  background: #0f1728;
  color: #c9d5ee;
  padding: 28px 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr;
  gap: 24px;
}

.site-footer a {
  color: #dcecff;
}

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

.small {
  font-size: 0.9rem;
}

@media (max-width: 960px) {
  .hero-grid,
  .grid-3,
  .grid-2,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .nav-links {
    display: none;
    width: 100%;
    padding-bottom: 12px;
  }

  .nav-links.open {
    display: flex;
    flex-direction: column;
  }

  .nav-wrap {
    align-items: flex-start;
    flex-wrap: wrap;
    padding-top: 12px;
  }
}