/* ===== aurora · 阳光蓝调（欧美/德/法/西/葡） =====
   通透天蓝 + 阳光橙点缀，大留白，圆角温和，像北欧晴天。
   */
[data-theme="aurora"] {
  --navy: #0a2540;
  --navy-2: #1e88e5;
  --teal: #00acc1;
  --ink: #1a2a3a;
  --body: #4a5a6a;
  --line: #e3eaf2;
  --bg: #f7fafc;
  --card: #ffffff;
  --accent: #ff6b35;
  --accent-deep: #e55a2b;
  --ok: #2e7d32;
  --err: #c62828;
  --radius: 12px;
  --shadow: 0 2px 8px rgba(10,37,64,.06), 0 12px 32px rgba(10,37,64,.08);
  --gradient: linear-gradient(135deg, #1e88e5 0%, #00acc1 100%);
}

[data-theme="aurora"] body {
  letter-spacing: .2px;
  font-weight: 400;
  background: var(--bg);
}

[data-theme="aurora"] .site-header {
  background: linear-gradient(135deg, #0a2540 0%, #1565c0 100%);
  box-shadow: 0 2px 16px rgba(10,37,64,.15);
}

[data-theme="aurora"] .brand {
  letter-spacing: 1.5px;
  font-weight: 700;
  font-size: 20px;
}

[data-theme="aurora"] .site-nav a {
  font-weight: 500;
  transition: all .2s ease;
}

[data-theme="aurora"] .site-nav a:hover {
  background: rgba(255,255,255,.1);
}

[data-theme="aurora"] .site-nav a.active {
  background: var(--accent);
  color: #fff;
  border-radius: 8px;
}

[data-theme="aurora"] .btn-primary {
  background: linear-gradient(135deg, #ff6b35 0%, #e55a2b 100%);
  color: #fff;
  box-shadow: 0 4px 16px rgba(255,107,53,.3);
  font-weight: 600;
  border: none;
  transition: all .2s ease;
}

[data-theme="aurora"] .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255,107,53,.4);
}

[data-theme="aurora"] .btn-ghost {
  border: 2px solid rgba(255,255,255,.3);
  color: #fff;
  transition: all .2s ease;
}

[data-theme="aurora"] .btn-ghost:hover {
  background: rgba(255,255,255,.1);
  border-color: rgba(255,255,255,.5);
}

[data-theme="aurora"] .card,
[data-theme="aurora"] .stat-card {
  box-shadow: var(--shadow);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: all .2s ease;
}

[data-theme="aurora"] .card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(10,37,64,.12);
}

[data-theme="aurora"] h1,
[data-theme="aurora"] h2,
[data-theme="aurora"] .page-title {
  letter-spacing: .5px;
  font-weight: 700;
  background: linear-gradient(135deg, #0a2540 0%, #1e88e5 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

[data-theme="aurora"] a {
  color: var(--navy-2);
}

[data-theme="aurora"] .section {
  padding-top: 80px;
  padding-bottom: 80px;
}

[data-theme="aurora"] .section-title h2 {
  position: relative;
  display: inline-block;
}

[data-theme="aurora"] .section-title h2::after {
  content: '';
  position: absolute;
  bottom: -12px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 4px;
  background: linear-gradient(90deg, #ff6b35, #ffb74d);
  border-radius: 2px;
}

[data-theme="aurora"] .site-footer {
  background: linear-gradient(135deg, #0a2540 0%, #1565c0 100%);
}

[data-theme="aurora"] .hero {
  background: linear-gradient(135deg, #0a2540 0%, #1e88e5 50%, #00acc1 100%);
}