/* 家长糖官网共用导航条 · 两站(app.guixian.cn / www.guixian.cn)通用
   配色与官网紫蓝渐变(#667eea→#764ba2)统一，sticky 顶部 */

.gx-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 60px;
  padding: 8px 16px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  box-shadow: 0 2px 12px rgba(102, 126, 234, 0.3);
  font-family: -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

/* logo 区 */
.gx-nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.gx-nav-logo-img {
  width: 38px;
  height: 38px;
  border-radius: 9px;
  object-fit: cover;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  flex-shrink: 0;
}

.gx-nav-logo-text {
  font-size: 19px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 1px;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.15);
}

/* 链接区 */
.gx-nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.gx-nav-link {
  display: inline-flex;
  align-items: center;
  padding: 9px 14px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.88);
  text-decoration: none;
  transition: color 0.15s ease, background 0.15s ease;
  white-space: nowrap;
}
.gx-nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.15);
}
.gx-nav-link.active {
  color: #fff;
  background: rgba(255, 255, 255, 0.22);
}

/* 「下载App」主 CTA 按钮 */
.gx-nav-link.gx-nav-cta {
  background: rgba(255, 255, 255, 0.95);
  color: #5a67d8;
  font-weight: 700;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}
.gx-nav-link.gx-nav-cta:hover {
  background: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.18);
}
.gx-nav-link.gx-nav-cta.active {
  background: #fff;
  color: #5a67d8;
}

/* 移动端紧凑 */
@media (max-width: 420px) {
  .gx-nav { min-height: 54px; padding: 6px 12px; }
  .gx-nav-logo-img { width: 32px; height: 32px; border-radius: 8px; }
  .gx-nav-logo-text { font-size: 17px; }
  .gx-nav-link { padding: 7px 11px; font-size: 14px; }
  .gx-nav-links { gap: 2px; }
}