/* ==================================================
   扬帆云（YFCloud）- 二级页面样式（深海洋流赛博风）
   ================================================== */ 

:root {
  --page-max: 900px;
  --page-bg: #060b19;
  --page-surface: rgba(11, 22, 45, 0.78);
  --page-border: rgba(0, 229, 255, 0.18);
  --page-border-hover: rgba(0, 229, 255, 0.45);
  --page-shadow: 0 16px 45px rgba(2, 6, 23, 0.75);
  --page-text: #e2e8f0;
  --page-muted: #94a3b8;
  --page-cyan: #00e5ff;
  --page-blue: #2563eb;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", sans-serif;
  background-color: var(--page-bg);
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(0, 229, 255, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 85% 65%, rgba(37, 99, 235, 0.15) 0%, transparent 50%);
  background-attachment: fixed;
  color: var(--page-text);
  min-height: 100vh;
}

.page-wrap {
  max-width: var(--page-max);
  margin: 0 auto;
}

.page-card {
  background: var(--page-surface);
  border-radius: 20px;
  border: 1px solid var(--page-border);
  box-shadow: var(--page-shadow);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  transition: all 0.3s ease;
}
.page-card:hover {
  border-color: var(--page-border-hover);
  box-shadow: 0 20px 55px rgba(0, 229, 255, 0.15);
}

.page-title {
  font-weight: 800;
  letter-spacing: -0.01em;
  background: linear-gradient(135deg, #ffffff 0%, var(--page-cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 20px rgba(0, 229, 255, 0.2);
}

.page-meta {
  color: var(--page-cyan);
  font-size: 0.9rem;
  font-weight: 600;
}

.page-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--page-border), transparent);
}

.page-card h2 {
  color: #ffffff;
  font-weight: 700;
  margin-top: 1.5rem;
}
.page-card h5 {
  color: var(--page-cyan);
  font-weight: 700;
}

.page-card p, .page-card li {
  line-height: 1.8;
  color: #cbd5e1;
}

.page-card a {
  color: var(--page-cyan);
  text-decoration: none;
  transition: all 0.2s;
}
.page-card a:hover {
  color: #ffffff;
  text-shadow: 0 0 10px rgba(0, 229, 255, 0.6);
  text-decoration: underline;
}

.page-footer a {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--page-cyan);
  font-weight: 600;
}

/* 导航栏 */
.navbar {
  background: rgba(6, 11, 25, 0.85) !important;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--page-border);
}

.btn-primary {
  background: linear-gradient(135deg, var(--page-cyan) 0%, var(--page-blue) 100%);
  border: none;
  color: #030712;
  font-weight: 700;
  box-shadow: 0 0 18px rgba(0, 229, 255, 0.35);
  transition: all 0.2s;
}
.btn-primary:hover {
  background: linear-gradient(135deg, #38bdf8 0%, #1d4ed8 100%);
  color: #000;
  box-shadow: 0 0 25px rgba(0, 229, 255, 0.6);
  transform: translateY(-2px);
}

.btn-outline-primary {
  background: rgba(0, 229, 255, 0.05);
  border: 1px solid var(--page-border);
  color: var(--page-cyan);
  font-weight: 600;
  transition: all 0.2s;
}
.btn-outline-primary:hover {
  background: rgba(0, 229, 255, 0.15);
  border-color: var(--page-cyan);
  color: #ffffff;
  box-shadow: 0 0 18px rgba(0, 229, 255, 0.35);
  transform: translateY(-2px);
}

footer.bg-dark {
  background: #03060f !important;
  border-top: 1px solid var(--page-border);
  color: var(--page-muted) !important;
}