/**
 * 鲸发卡PRO — 全局视觉基底（阶段1）：对齐参考样板色与毛玻璃/hover
 */
:root {
  --jf-primary: #1677ff;
  --jf-success: #52c41a;
  --jf-warning: #faad14;
  --jf-danger: #f5222d;
  --jf-text: #333333;
  --jf-muted: #666666;
  --jf-bg: #f5f7fa;
  --jf-radius: 8px;
  --jf-shadow: 0 8px 24px rgba(15, 23, 42, 0.08);
}

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

body.jf-stage1 {
  margin: 0;
  min-height: 100vh;
  font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
  color: var(--jf-text);
  background: radial-gradient(1200px 600px at 10% -10%, rgba(22, 119, 255, 0.12), transparent),
    radial-gradient(900px 500px at 90% 0%, rgba(99, 102, 241, 0.1), transparent),
    var(--jf-bg);
}

.jf-shell {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

.jf-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  margin-bottom: 20px;
  border-radius: var(--jf-radius);
  background: rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.65);
  box-shadow: var(--jf-shadow);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.jf-topbar:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.12);
}

.jf-brand {
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #0f172a;
}

.jf-tag {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(22, 119, 255, 0.12);
  color: var(--jf-primary);
  border: 1px solid rgba(22, 119, 255, 0.25);
}

.jf-main {
  animation: jf-fade-in 0.45s ease;
}

@keyframes jf-fade-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.jf-card {
  padding: 28px 24px;
  border-radius: var(--jf-radius);
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.75);
  box-shadow: var(--jf-shadow);
  transition: transform 0.22s ease, box-shadow 0.22s ease;
}

.jf-card:hover {
  transform: translateY(-3px) scale(1.01);
  box-shadow: 0 14px 36px rgba(15, 23, 42, 0.14);
}

.jf-card h1 {
  margin: 0 0 12px;
  font-size: 22px;
}

.jf-card p {
  margin: 0;
  color: var(--jf-muted);
  line-height: 1.7;
}

@media (max-width: 768px) {
  .jf-shell {
    padding: 16px 12px 32px;
  }
  .jf-topbar {
    flex-direction: column;
    gap: 10px;
    align-items: flex-start;
  }
}