/**
 * Venus Invest Alliance - 移动端适配样式
 * 此文件包含专门针对移动设备的样式
 */

/* 触摸优化 - 增加菜单按钮的可点击性 */
.touch-target {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 44px; /* 符合WCAG标准的最小点击区域 */
  min-height: 44px;
  position: relative;
  touch-action: manipulation; /* 优化触摸行为 */
  -webkit-tap-highlight-color: rgba(0,0,0,0.2); /* 触摸高亮效果 */
  cursor: pointer; /* 明确显示这是可点击元素 */
}

/* 克隆的移动菜单容器样式 */
#mobile-menu-container-cloned {
  /* JS中已设置大部分样式，这里主要用于覆盖和微调 */
  box-sizing: border-box;
  border-left: none !important; /* 移除JS中可能添加的调试边框 */
  border-right: none !important;
  border-bottom: none !important;
}

#mobile-menu-container-cloned .menu-item a,
#mobile-menu-container-cloned .nav-menu > li > a {
  padding: 14px 20px !important; /* 统一主菜单项内边距 */
  font-size: 16px !important;
}

#mobile-menu-container-cloned .sub-menu,
#mobile-menu-container-cloned .dropdown-menu {
  padding-left: 0 !important; /* 重置JS设置的padding-left */
  background-color: #f1f1f1 !important; /* 稍深的背景以区分层级 */
  border-top: 1px solid #e0e0e0 !important;
}

#mobile-menu-container-cloned .sub-menu .menu-item a,
#mobile-menu-container-cloned .dropdown-menu .dropdown-item {
  padding: 12px 20px 12px 35px !important; /* 子菜单项增加左侧缩进 */
  font-size: 15px !important;
  color: #333 !important;
  border-bottom: 1px solid #e9e9e9 !important;
}

#mobile-menu-container-cloned .sub-menu .menu-item:last-child a,
#mobile-menu-container-cloned .dropdown-menu .dropdown-item:last-child {
    border-bottom: none !important;
}

#mobile-menu-container-cloned .menu-arrow-icon {
    float: right;
    transition: transform 0.3s ease;
}

#mobile-menu-container-cloned .dropdown-toggle[aria-expanded="true"] .menu-arrow-icon {
    transform: rotate(180deg);
}

/* 确保原始菜单容器在移动端始终隐藏，因为我们使用的是克隆版本 */
@media (max-width: 991px) { /* Bootstrap的md断点 */
  .primary-menu-container {
    display: none !important;
  }
}

/* 移动菜单容器样式 - 必须显示在最上层 */
.mobile-menu-container {
  display: none;
  position: fixed !important;
  top: 150px !important; /* 进一步增加顶部距离，确保不遮挡菜单按钮 */
  left: 0 !important;
  right: 0 !important;
  width: 100% !important;
  background-color: #f8f9fa !important; /* 恢复为浅灰色背景，与网站风格保持一致 */
  z-index: 9999 !important; /* 提高z-index，确保显示在最上层 */
  box-shadow: 0 5px 15px rgba(0,0,0,0.3) !important;
  padding: 10px 0 !important;
  border-top: 3px solid #3b5998 !important; /* 使用主题蓝色作为边框 */
  max-height: 75vh !important; /* 稍微减小最大高度 */
  overflow-y: auto !important;
  opacity: 1 !important;
  visibility: visible !important;
  animation: fadeInDown 0.3s ease !important; /* 添加动画效果 */
}

/* 确保所有菜单链接颜色一致 */
.mobile-menu-container a,
.mobile-menu-fixed a,
.primary-menu-container a,
.mobile-menu-list a,
.submenu a,
.dropdown-menu a,
.dropdown-item,
.mobile-menu-container li a,
.mobile-menu-fixed li a,
.primary-menu-container li a,
.mobile-menu-list li a,
.submenu li a,
.dropdown-menu li a {
  color: #333333 !important;
  text-decoration: none !important;
}

/* 确保所有菜单链接悬停效果一致 */
.mobile-menu-container a:hover,
.mobile-menu-fixed a:hover,
.primary-menu-container a:hover,
.mobile-menu-list a:hover,
.submenu a:hover,
.dropdown-menu a:hover,
.dropdown-item:hover,
.mobile-menu-container li a:hover,
.mobile-menu-fixed li a:hover,
.primary-menu-container li a:hover,
.mobile-menu-list li a:hover,
.submenu li a:hover,
.dropdown-menu li a:hover {
  background-color: #e9ecef !important;
  border-left: 4px solid #3b5998 !important;
  color: #3b5998 !important;
}

/* 确保菜单箭头和文本在同一行 - 仅限移动端 */
@media (max-width: 991px) {
  .mobile-menu-list .has-children > a,
  .mobile-menu-fixed .has-children > a {
    display: flex !important;
    flex-wrap: wrap !important;
    align-items: center !important;
    justify-content: space-between !important;
    position: relative !important;
  }

  .mobile-menu-list .has-children > a .menu-arrow,
  .mobile-menu-fixed .has-children > a .menu-arrow {
    margin-left: auto !important;
    display: inline-block !important;
    visibility: visible !important;
    opacity: 1 !important;
    position: relative !important;
    z-index: 10 !important;
    margin-right: 10px !important;
  }

  /* 确保在特定页面上箭头也能显示 - 仅限移动端 */
  body.lang-de .mobile-menu-list .has-children > a .menu-arrow,
  body.lang-de .mobile-menu-fixed .has-children > a .menu-arrow,
  body.lang-en .mobile-menu-list .has-children > a .menu-arrow,
  body.lang-en .mobile-menu-fixed .has-children > a .menu-arrow,
  body.lang-zh .mobile-menu-list .has-children > a .menu-arrow,
  body.lang-zh .mobile-menu-fixed .has-children > a .menu-arrow {
    display: inline-block !important;
    visibility: visible !important;
    opacity: 1 !important;
  }
}

/* 确保移动菜单显示在其他元素上方 */
.mobile-menu-container * {
  z-index: inherit !important;
}

/* 移动菜单项样式 */
.mobile-menu-container .menu-item,
.mobile-menu-container .nav-menu > li {
  display: block !important;
  width: 100% !important;
  margin: 0 !important;
  padding: 0 !important;
  border-bottom: 1px solid #f0f0f0 !important;
  clear: both !important;
  float: none !important;
}

.mobile-menu-container .menu-item a,
.mobile-menu-container .nav-menu > li > a,
.mobile-menu-container a {
  display: block !important;
  padding: 14px 20px !important;
  color: #333333 !important; /* 使用深灰色文字，在浅灰色背景上更加醒目 */
  text-decoration: none !important;
  font-weight: 600 !important; /* 加粗字体 */
  font-size: 16px !important;
  line-height: 1.5 !important;
  text-transform: none !important;
  border-left: 4px solid transparent !important; /* 为悬停效果准备 */
  transition: all 0.2s ease !important; /* 添加过渡效果 */
}

.mobile-menu-container .menu-item a:hover,
.mobile-menu-container .menu-item a:focus,
.mobile-menu-container .nav-menu > li > a:hover,
.mobile-menu-container .nav-menu > li > a:focus,
.mobile-menu-container a:hover,
.mobile-menu-container a:focus {
  background-color: #e9ecef !important; /* 悬停时使用稍深的灰色背景 */
  border-left: 4px solid #3b5998 !important; /* 悬停时左侧边框使用主题蓝色 */
  color: #3b5998 !important; /* 悬停时文字颜色变为主题蓝色 */
}

/* 子菜单样式 */
.mobile-menu-container .dropdown-menu {
  position: static !important;
  float: none !important;
  width: 100% !important;
  box-shadow: none !important;
  background: #f0f0f0 !important; /* 使用稍深的灰色背景，与主菜单区分 */
  margin: 0 !important;
  border: none !important;
  border-top: 1px solid #e0e0e0 !important; /* 添加浅灰色顶部边框 */
  border-bottom: 1px solid #e0e0e0 !important; /* 添加浅灰色底部边框 */
}

.mobile-menu-container .dropdown-item {
  padding: 12px 20px 12px 30px !important; /* 增加左侧缩进 */
  font-size: 15px !important;
  font-weight: 500 !important;
  border-left: 4px solid transparent !important;
  transition: all 0.2s ease !important;
}

.mobile-menu-container .dropdown-item:hover,
.mobile-menu-container .dropdown-item:focus {
  background-color: #e9ecef !important; /* 悬停时使用稍深的灰色背景 */
  border-left: 4px solid #3b5998 !important; /* 悬停时左侧边框使用主题蓝色 */
  color: #3b5998 !important; /* 悬停时文字颜色变为主题蓝色 */
}

/* 强制显示菜单 - 这是关键样式 */
.primary-menu-container.toggled,
body .primary-menu-container[style*="display: block"] {
  display: block !important;
  visibility: visible !important;
  opacity: 1 !important;
  position: fixed !important;
  top: 150px !important; /* 进一步增加顶部距离，确保不遮挡菜单按钮 */
  left: 0 !important;
  right: 0 !important;
  width: 100% !important;
  background-color: #f8f9fa !important; /* 恢复为浅灰色背景，与网站风格保持一致 */
  z-index: 9999 !important; /* 提高z-index，确保显示在最上层 */
  box-shadow: 0 5px 15px rgba(0,0,0,0.3) !important;
  padding: 10px 0 !important;
  border-top: 3px solid #3b5998 !important; /* 使用主题蓝色作为边框 */
  max-height: 75vh !important; /* 稍微减小最大高度 */
  overflow-y: auto !important;
  animation: fadeInDown 0.3s ease !important; /* 添加动画效果 */
}

/* 确保菜单项在移动端正确显示 */
@media (max-width: 767px) {
  html, body {
    overflow-x: hidden !important;
  }

  .primary-menu-container .menu-item,
  .primary-menu-container .nav-menu > li {
    display: block !important;
    width: 100% !important;
    margin: 0 !important;
    border-bottom: 1px solid #f0f0f0 !important;
    clear: both !important;
    float: none !important;
  }

  .primary-menu-container .menu-item a,
  .primary-menu-container .nav-menu > li > a {
    display: block !important;
    padding: 14px 20px !important;
    color: #333333 !important; /* 使用深灰色文字，在浅灰色背景上更加醒目 */
    text-decoration: none !important;
    font-weight: 600 !important; /* 加粗字体 */
    font-size: 16px !important;
    line-height: 1.5 !important;
    text-transform: none !important;
    border-left: 4px solid transparent !important; /* 为悬停效果准备 */
    transition: all 0.2s ease !important; /* 添加过渡效果 */
  }

  .primary-menu-container .menu-item a:hover,
  .primary-menu-container .menu-item a:focus,
  .primary-menu-container .nav-menu > li > a:hover,
  .primary-menu-container .nav-menu > li > a:focus {
    background-color: #e9ecef !important; /* 悬停时使用稍深的灰色背景 */
    border-left: 4px solid #3b5998 !important; /* 悬停时左侧边框使用主题蓝色 */
    color: #3b5998 !important; /* 悬停时文字颜色变为主题蓝色 */
  }

  /* 强制显示下拉菜单 */
  .primary-menu-container .dropdown-menu {
    position: static !important;
    float: none !important;
    width: 100% !important;
    box-shadow: none !important;
    background: #f0f0f0 !important; /* 使用稍深的灰色背景，与主菜单区分 */
    margin: 0 !important;
    border: none !important;
    border-top: 1px solid #e0e0e0 !important; /* 添加浅灰色顶部边框 */
    border-bottom: 1px solid #e0e0e0 !important; /* 添加浅灰色底部边框 */
  }

  .primary-menu-container .dropdown-item {
    padding: 12px 20px 12px 30px !important; /* 增加左侧缩进 */
    font-size: 15px !important;
    font-weight: 500 !important;
    border-left: 4px solid transparent !important;
    transition: all 0.2s ease !important;
  }

  .primary-menu-container .dropdown-item:hover,
  .primary-menu-container .dropdown-item:focus {
    background-color: #e9ecef !important; /* 悬停时使用稍深的灰色背景 */
    border-left: 4px solid #3b5998 !important; /* 悬停时左侧边框使用主题蓝色 */
    color: #3b5998 !important; /* 悬停时文字颜色变为主题蓝色 */
  }

  /* 覆盖任何可能阻止显示的Bootstrap样式 */
  .nav-menu,
  .main-navigation ul {
    display: block !important;
    width: 100% !important;
  }

  /* 菜单按钮样式优化 */
  .menu-toggle {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    background: #3b5998 !important;
    border: none !important;
    border-radius: 4px !important;
    color: white !important;
    font-size: 1.5rem !important;
    width: 44px !important;
    height: 44px !important;
    float: right !important;
    cursor: pointer !important;
    z-index: 1001 !important;
    position: relative !important;
    margin-top: 5px !important;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2) !important;
    transition: all 0.3s ease !important;
    -webkit-appearance: none !important;
    -webkit-tap-highlight-color: rgba(0,0,0,0.2) !important;
  }

  .menu-toggle:focus,
  .menu-toggle:hover {
    background: #2d4373 !important;
    outline: none !important;
  }

  .top-bar {
    padding: 5px 0;
  }

  .top-bar .contact-info,
  .top-bar .language-switcher {
    text-align: center;
    width: 100%;
    margin: 5px 0;
  }

  /* 主导航 */
  .main-navigation {
    position: relative;
    z-index: 1000;
    display: flex;
    justify-content: flex-end;
    width: 100%; /* 确保容器宽度为100% */
  }

  /* 菜单按钮样式 */
  .menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    background: #3b5998; /* 使用主色调的背景色 */
    border: none;
    border-radius: 4px;
    color: white; /* 白色文字更醒目 */
    font-size: 1.5rem;
    width: 44px; /* 固定宽度 */
    height: 44px; /* 固定高度 */
    float: right;
    cursor: pointer;
    z-index: 10000 !important; /* 进一步提高z-index，确保始终在菜单上方 */
    position: relative; /* 添加相对定位 */
    margin-top: 5px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2); /* 添加阴影效果 */
    transition: all 0.3s ease; /* 平滑过渡效果 */
    -webkit-appearance: none; /* 移除iOS默认样式 */
    -webkit-tap-highlight-color: rgba(0,0,0,0.2); /* 触摸高亮效果 */
  }

  .menu-toggle:hover,
  .menu-toggle:focus {
    background: #4267b2; /* 悬停时颜色变化 */
    transform: scale(1.05); /* 轻微放大 */
  }

  /* 菜单按钮激活状态 */
  .menu-toggle[aria-expanded="true"] {
    background: #011F5B; /* 激活时使用更深的蓝色 */
    box-shadow: 0 0 8px rgba(0,0,0,0.3); /* 增强阴影效果 */
  }

  /* 菜单容器样式 - 默认为隐藏 */
  .primary-menu-container {
    display: none; /* 默认隐藏，由JS控制显示 */
    position: absolute;
    top: 55px; /* 菜单顶部与菜单按钮保持距离 */
    left: 0;
    right: 0;
    width: 100%;
    background-color: #ffffff;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    z-index: 9999;
    padding: 10px 0;
    border-radius: 4px;
    border-top: 3px solid #3b5998; /* 添加顶部边框 */
    max-height: 80vh; /* 限制最大高度 */
    overflow-y: auto; /* 允许滚动 */
  }

  /* 菜单项目显示 */
  .primary-menu-container ul {
    list-style: none;
    padding: 0;
    margin: 0;
    width: 100%;
  }

  .primary-menu-container .nav-menu {
    display: flex;
    flex-direction: column;
    width: 100%;
  }

  /* 强制菜单内容在移动端显示为块级 */
  .primary-menu-container .nav-menu.d-md-flex {
    display: block !important;
  }

  .primary-menu-container .menu-item {
    display: block !important;
    margin: 0;
    width: 100%;
    border-bottom: 1px solid #f0f0f0;
  }

  .primary-menu-container .menu-item a {
    display: block !important;
    padding: 12px 15px;
    color: #333;
    text-decoration: none;
    font-weight: 500;
    transition: background 0.3s;
  }

  .primary-menu-container .menu-item a:hover {
    background: #f8f9fa;
  }

  /* 基础菜单项样式，不受显示/隐藏影响 */
  .nav-menu {
    flex-direction: column;
    padding: 0;
    margin: 0;
    list-style: none;
    width: 100%; /* 确保宽度100% */
  }

  .nav-menu .menu-item {
    margin: 0;
    width: 100%;
    border-bottom: 1px solid #f0f0f0;
  }

  .nav-menu .menu-item a {
    display: block;
    padding: 12px 15px;
    color: #333;
    text-decoration: none;
    font-weight: 500;
    transition: background 0.3s;
  }

  .nav-menu .menu-item a:hover {
    background: #f8f9fa;
  }

  /* 下拉菜单样式 */
  .dropdown-menu {
    position: static;
    width: 100%;
    border: none;
    box-shadow: none;
    background: #f8f9fa;
    padding-left: 15px;
  }

  /* 触摸优化 */
  .touch-target {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 44px; /* 符合WCAG标准的最小点击区域 */
    min-height: 44px;
    position: relative;
    touch-action: manipulation; /* 优化触摸行为 */
    -webkit-tap-highlight-color: rgba(0,0,0,0.2); /* 触摸高亮效果 */
    cursor: pointer; /* 明确显示这是可点击元素 */
  }

  .touch-target::after {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    z-index: -1; /* 确保不会影响视觉效果 */
  }

  /* 特别处理中文语言选项 */
  .language-switcher a[data-lang="zh"] {
    display: inline-block;
    white-space: nowrap;
    width: auto;
    padding: 0 5px;
  }

  /* 添加动画效果 */
  @keyframes fadeInDown {
    from {
      opacity: 0;
      transform: translateY(-10px);
    }
    to {
      opacity: 1;
      transform: translateY(0);
    }
  }
}

/* 超小屏幕设备 (小于576px) */
@media (max-width: 575px) {
  .container {
    padding-left: 15px;
    padding-right: 15px;
  }

  /* 顶部栏超小屏幕优化 */
  .top-bar {
    padding: 8px 0;
  }

  .top-bar-contact span {
    font-size: 13px;
  }

  .language-switcher a {
    font-size: 12px;
    padding: 2px 4px;
    margin: 0 2px 0 0;
  }

  /* 更紧凑的布局 */
  .top-bar .row {
    margin-left: -5px;
    margin-right: -5px;
  }

  .top-bar [class*="col-"] {
    padding-left: 5px;
    padding-right: 5px;
  }

  h1, .h1 {
    font-size: 1.8rem;
  }

  h2, .h2 {
    font-size: 1.5rem;
  }

  h3, .h3 {
    font-size: 1.3rem;
  }

  .section {
    padding: 30px 0;
  }

  .py-5 {
    padding-top: 2rem !important;
    padding-bottom: 2rem !important;
  }

  .my-5 {
    margin-top: 2rem !important;
    margin-bottom: 2rem !important;
  }
}

/* 极小屏幕设备 (小于375px) */
@media (max-width: 374px) {
  .top-bar-contact span {
    font-size: 11px;
  }

  .language-switcher {
    display: flex;
    justify-content: flex-end;
  }

  .language-switcher a {
    font-size: 11px;
    padding: 2px 3px;
    margin: 0 1px 0 0;
  }

  /* 移除不必要的边距 */
  .col-5, .col-7 {
    padding-left: 3px;
    padding-right: 3px;
  }
}

/* 添加动画效果 */
@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}