/* ===== 移动端全屏导航 + 底部悬浮栏（不影响 PC） ===== */
@media (max-width: 992px) {
  :root {
    --mob-nav-bg: #353a4d;
  }

  body.has-mob-tabbar {
    padding-bottom: calc(62px + env(safe-area-inset-bottom, 0px));
  }

  body.nav-open {
    overflow: hidden;
    overflow-x: hidden;
    max-width: 100vw;
  }

  body.nav-open .mob-tabbar {
    display: none;
  }

  /* 展开导航时顶栏 LOGO 区域白底 */
  body.nav-open .site-hd {
    background: #fff !important;
    border-bottom-color: rgba(0, 0, 0, 0.08);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  body.has-index-mob-banner.nav-open .site-hd,
  body.has-index-mob-banner.nav-open .site-hd .hd-inner {
    background: #fff !important;
  }

  body.has-index-mob-banner.nav-open .site-hd .logo-img,
  body.has-index-mob-banner.nav-open .site-hd:not(.scrolled) .logo-img {
    filter: none !important;
  }

  body.has-index-mob-banner.nav-open .site-hd .menu-btn span {
    background: #353a4d !important;
  }

  body.nav-open .site-hd .hd-inner {
    background: #fff;
  }

  body.nav-open .site-hd .logo-img {
    filter: none !important;
  }

  body.nav-open .site-hd:not(.scrolled) .logo-img {
    filter: none !important;
  }

  body.nav-open .site-hd .menu-btn span {
    background: #353a4d;
  }

  .nav-overlay.active {
    background: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(2px);
  }

  .site-nav.open {
    display: flex !important;
    flex-direction: column;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    max-width: 100vw;
    height: calc(100vh - 70px);
    height: calc(100dvh - 70px);
    max-height: calc(100vh - 70px);
    max-height: calc(100dvh - 70px);
    background: var(--mob-nav-bg) !important;
    padding: 0;
    margin: 0;
    border-radius: 0;
    box-shadow: none;
    overflow: hidden;
    overflow-x: hidden;
    box-sizing: border-box;
    z-index: 998;
  }

  .site-hd:not(.scrolled) .site-nav.open ul.nav-ul > li > a,
  .site-hd:not(.scrolled) .site-nav.open ul.nav-ul > li.on > a,
  .site-hd:not(.scrolled) .site-nav.open .nav-drop li a {
    color: #fff !important;
  }

  .site-hd:not(.scrolled) .site-nav.open .nav-drop li a:hover {
    background: rgba(255, 255, 255, 0.08) !important;
    color: #fff !important;
  }

  .site-nav.open .nav-ul {
    flex: 1 1 auto;
    flex-direction: column;
    gap: 0;
    align-items: stretch;
    padding: 4px 0 0;
    margin: 0;
    min-height: 0;
    min-width: 0;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    overflow-x: hidden;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .site-nav.open .nav-ul > li {
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    min-width: 0;
    max-width: 100%;
  }

  .site-nav.open .nav-ul > li > a {
    display: block;
    padding: 16px 22px;
    font-size: 16px;
    font-weight: 500;
    color: #fff !important;
    border-radius: 0;
    background: transparent;
  }

  .site-nav.open .nav-ul > li > a::after {
    display: none !important;
  }

  .site-nav.open .nav-ul > li.on > a,
  .site-nav.open .nav-ul > li > a:active {
    background: rgba(255, 255, 255, 0.08);
    color: #fff !important;
  }

  /* 服务项目子项提升为一级导航（不用 display:contents，兼容百度/UC 等 WebView） */
  .site-nav.open .has-drop {
    display: block;
    position: static;
    border-bottom: 0;
    padding: 0;
    margin: 0;
  }

  .site-nav.open .has-drop::after {
    display: none !important;
  }

  .site-nav.open .has-drop > a {
    display: none !important;
  }

  .site-nav.open .has-drop .nav-drop {
    display: block !important;
    position: static !important;
    opacity: 1 !important;
    pointer-events: all !important;
    transform: none !important;
    box-shadow: none !important;
    border: none !important;
    background: transparent !important;
    border-radius: 0 !important;
    padding: 0 !important;
    margin: 0 !important;
    min-width: 0 !important;
    width: 100% !important;
    left: auto !important;
    top: auto !important;
    white-space: normal !important;
  }

  .site-nav.open .has-drop .nav-drop li {
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    list-style: none;
  }

  .site-nav.open .has-drop .nav-drop li a {
    display: block !important;
    padding: 16px 22px !important;
    font-size: 16px !important;
    font-weight: 500 !important;
    color: #fff !important;
    border-radius: 0 !important;
    background: transparent !important;
  }

  .site-nav.open .has-drop .nav-drop li a:hover,
  .site-nav.open .has-drop .nav-drop li a:active {
    background: rgba(255, 255, 255, 0.08) !important;
    color: #fff !important;
  }

  .site-nav.open .has-drop .nav-drop li a::after {
    display: none !important;
  }

  /* 覆盖各页面 CSS 残留的旧版展开菜单（服务项目米色底、深色字等） */
  .site-hd:not(.scrolled) .site-nav.open .has-drop .nav-drop,
  .site-hd.scrolled .site-nav.open .has-drop .nav-drop {
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
  }

  .site-hd:not(.scrolled) .site-nav.open .has-drop .nav-drop li a,
  .site-hd.scrolled .site-nav.open .has-drop .nav-drop li a {
    color: #fff !important;
    background: transparent !important;
  }

  /* 底部电话咨询 / 座机热线（固定在导航面板底部，菜单列表单独滚动） */
  .nav-mob-contact {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 8px;
    padding: 12px 10px calc(16px + env(safe-area-inset-bottom, 0px));
    margin: 0;
    flex: 0 0 auto;
    flex-shrink: 0;
    width: 100%;
    max-width: 100%;
    min-width: 0;
    box-sizing: border-box;
    background: var(--mob-nav-bg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    overflow: hidden;
  }

  .nav-mob-tel-card {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 4px;
    padding: 10px 8px;
    background: #fff;
    border-radius: 10px;
    text-decoration: none;
    color: var(--dark, #1a1a1a);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    min-width: 0;
    max-width: 100%;
    width: 100%;
    box-sizing: border-box;
    overflow: hidden;
    cursor: pointer;
    -webkit-tap-highlight-color: rgba(24, 77, 196, 0.15);
    touch-action: manipulation;
  }

  .nav-mob-tel-card:active {
    transform: scale(0.98);
    background: #f8f9fc;
  }

  .nav-mob-tel-ico {
    width: 22px;
    height: 22px;
    color: var(--blue, #184dc4);
    flex-shrink: 0;
  }

  .nav-mob-tel-ico svg {
    width: 100%;
    height: 100%;
    display: block;
  }

  .nav-mob-tel-lbl {
    font-size: 11px;
    color: #888;
    line-height: 1.3;
    flex-shrink: 0;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .nav-mob-tel-num {
    display: block;
    width: 100%;
    max-width: 100%;
    font-size: 12px;
    font-weight: 700;
    color: var(--dark, #1a1a1a);
    line-height: 1.3;
    word-break: break-all;
    overflow-wrap: anywhere;
    hyphens: auto;
    letter-spacing: -0.4px;
  }

  @media (max-width: 360px) {
    .nav-mob-contact {
      gap: 6px;
      padding: 10px 8px calc(14px + env(safe-area-inset-bottom, 0px));
    }
    .nav-mob-tel-card {
      padding: 8px 6px;
      border-radius: 8px;
    }
    .nav-mob-tel-ico {
      width: 20px;
      height: 20px;
    }
    .nav-mob-tel-lbl {
      font-size: 10px;
    }
    .nav-mob-tel-num {
      font-size: 11px;
      letter-spacing: -0.5px;
    }
  }

  /* 底部悬浮导航 */
  .mob-tabbar {
    display: flex;
    align-items: stretch;
    justify-content: space-around;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 997;
    background: rgba(255, 255, 255, 0.98);
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.06);
    padding-bottom: env(safe-area-inset-bottom, 0px);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
  }

  .mob-tabbar-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    padding: 9px 3px 11px;
    text-decoration: none;
    color: #666;
    font-size: 12px;
    font-weight: 600;
    line-height: 1.25;
    transition: color 0.2s;
    min-width: 0;
  }

  .mob-tabbar-item:active,
  .mob-tabbar-item.is-active {
    color: var(--blue, #184dc4);
  }

  .mob-tabbar-ico {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .mob-tabbar-ico svg {
    width: 26px;
    height: 26px;
    display: block;
  }

  .mob-tabbar-lbl {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
  }

  @media (max-width: 360px) {
    .mob-tabbar-item {
      font-size: 11px;
      gap: 4px;
      padding: 8px 2px 10px;
    }
    .mob-tabbar-ico {
      width: 26px;
      height: 26px;
    }
    .mob-tabbar-ico svg {
      width: 24px;
      height: 24px;
    }
  }

  /* 有底部栏时隐藏右侧悬浮按钮，避免遮挡 */
  body.has-mob-tabbar .side-float {
    bottom: calc(74px + env(safe-area-inset-bottom, 0px));
    top: auto;
    transform: none;
    animation: none;
  }
}

@media (min-width: 993px) {
  .nav-mob-contact,
  .mob-tabbar {
    display: none !important;
  }
}