/* 移动端固定底部导航 */
.mobile-bottom-nav {
  display: none;
}

@media (max-width: 768px) {
  body.has-mobile-nav {
    padding-bottom: calc(60px + env(safe-area-inset-bottom, 0px));
  }

  .mobile-bottom-nav {
    display: flex;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 900;
    height: calc(56px + env(safe-area-inset-bottom, 0px));
    padding-bottom: env(safe-area-inset-bottom, 0px);
    background: rgba(26, 26, 26, 0.98);
    border-top: 1px solid #333;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
  }

  .mobile-nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    text-decoration: none;
    color: #a0a0a0;
    font-size: 0.7rem;
    transition: color 0.2s ease, background 0.2s ease;
    -webkit-tap-highlight-color: transparent;
  }

  .mobile-nav-item:active {
    background: rgba(201, 169, 98, 0.08);
  }

  .mobile-nav-icon {
    font-size: 1.25rem;
    line-height: 1;
  }

  .mobile-nav-label {
    line-height: 1.2;
    letter-spacing: 0.02em;
  }

  .mobile-nav-item.active {
    color: #c9a962;
  }

  .mobile-nav-item.active .mobile-nav-icon {
    filter: drop-shadow(0 0 6px rgba(201, 169, 98, 0.35));
  }

  .page-bazi .mobile-nav-item[data-nav="bazi"],
  .page-hehun .mobile-nav-item[data-nav="hehun"],
  .page-caiyun .mobile-nav-item[data-nav="caiyun"] {
    color: #c9a962;
  }

  .page-bazi .mobile-nav-item[data-nav="bazi"] .mobile-nav-icon,
  .page-hehun .mobile-nav-item[data-nav="hehun"] .mobile-nav-icon,
  .page-caiyun .mobile-nav-item[data-nav="caiyun"] .mobile-nav-icon {
    filter: drop-shadow(0 0 6px rgba(201, 169, 98, 0.35));
  }
}