/* 
 * Mobile Responsive Optimization for CosmosCloud.AI - CRITICAL FIX
 * This file uses !important to ensure mobile styles override all desktop styles
 */

/* ============================================
   Global Mobile Fixes
   ============================================ */

@media screen and (max-width: 1024px) {
  
  /* 确保页面主体正确显示 */
  html {
    overflow-x: hidden !important;
    width: 100% !important;
  }
  
  body {
    overflow-x: hidden !important;
    overflow-y: auto !important;
    position: relative !important;
    width: 100% !important;
    min-height: 100vh !important;
  }
  
  /* 为固定导航栏留出空间 */
  .wrapper,
  div.wrapper {
    padding-top: 0 !important;
    margin-top: 0 !important;
  }
  
  /* 确保主要内容区域在导航栏下方 */
  .lrn-section,
  section {
    position: relative !important;
  }

/* ============================================
   CRITICAL: Header and Logo Always Visible
   ============================================ */
  
  /* 确保header容器始终可见 - 白色背景，固定在顶部 */
  .lrn-header,
  header.lrn-header {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    width: 100% !important;
    z-index: 10001 !important;
    background-color: #ffffff !important;
    background-image: none !important;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1) !important;
    margin: 0 !important;
  }
  
  /* 确保页面内容不被固定导航栏遮挡 */
  body > .bg,
  body > div.bg {
    margin-top: 70px !important;
  }
  
  /* Wrapper 容器调整 */
  .wrapper,
  div.wrapper {
    position: relative !important;
    padding-top: 0 !important;
  }
  
  /* CRITICAL: Hero section 顶部边距 - 使用最高优先级覆盖所有内联样式 */
  .wrapper > section:first-child,
  .wrapper > .section:first-child,
  .wrapper section:first-of-type,
  .wrapper .section:first-of-type,
  section.section:first-of-type,
  body .wrapper > section:first-child,
  body .wrapper section:first-of-type {
    margin-top: 70px !important;
    padding-top: 30px !important;
  }
  
  /* 修复100vh高度的section */
  section[style*="min-height: 100vh"],
  section[style*="min-height:100vh"],
  .section[style*="min-height: 100vh"],
  .section[style*="min-height:100vh"] {
    min-height: calc(100vh - 70px) !important;
  }
  
  /* 修复第一个section的高度和位置 */
  .wrapper > section:first-child[style*="100vh"],
  body .wrapper > section:first-child[style*="100vh"] {
    min-height: calc(100vh - 70px) !important;
    margin-top: 70px !important;
    padding-top: 30px !important;
  }
  
  /* 确保所有section不重叠 */
  .lrn-section,
  section.lrn-section,
  .section,
  section.section {
    position: relative !important;
  }
  
  /* 确保导航栏容器可见 - 白色背景 */
  .lrn-navbar,
  nav.lrn-navbar {
    position: relative !important;
    z-index: 10000 !important;
    background-color: #ffffff !important;
    background-image: none !important;
    padding: 10px 0 !important;
  }
  
  /* 导航栏内部容器 */
  .lrn-navbar .container,
  nav.lrn-navbar .container {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    padding-top: 10px !important; /* 容器上内边距，可调整 */
    padding-bottom: 10px !important; /* 容器下内边距，可调整 */
    padding-left: 15px !important;
    padding-right: 15px !important;
  }
  
  /* 确保导航栏的row布局正确 */
  .lrn-navbar .row,
  nav.lrn-navbar .row {
    display: flex !important;
    justify-content: space-between !important;
    align-items: center !important;
    width: 100% !important;
    margin: 0 !important;
  }
  
  /* 导航栏列布局 */
  .lrn-navbar .col-xs-12,
  .lrn-navbar .col-sm-6,
  .lrn-navbar .col-md-3,
  .lrn-navbar .col-lg-3 {
    padding: 0 !important;
  }
  
  .lrn-navbar [class*="col-"]:last-child {
    display: flex !important;
    justify-content: flex-end !important;
  }
  
  /* 确保logo完全可见 */
  .lrn-logo,
  .lrn-navbar .lrn-logo,
  .lrn-header .lrn-logo {
    display: flex !important;
    align-items: center !important;
    max-width: 180px !important;
    height: auto !important;
    position: relative !important;
    z-index: 10002 !important;
    background: transparent !important;
    margin: 0 !important;
    padding: 0 !important;
  }
  
  .lrn-logo a,
  .lrn-navbar .lrn-logo a,
  .lrn-header .lrn-logo a {
    display: inline-block !important;
    line-height: 0 !important;
    height: auto !important;
    background: transparent !important;
  }
  
  .lrn-logo img,
  .lrn-navbar .lrn-logo img,
  .lrn-header .lrn-logo img {
    max-height: 40px !important;
    width: auto !important;
    height: auto !important;
    display: block !important;
    object-fit: contain !important;
  }
  
  /* 三横线菜单按钮 - 使用更高优先级覆盖 style.css */
  @media screen and (max-width: 1024px) {
    /* 完全重置所有可能的样式 */
    body .lrn-header .lrn-menu-btn,
    body header.lrn-header .lrn-menu-btn,
    .lrn-navbar .lrn-menu-btn {
      all: unset !important;
    }
    
    body .lrn-header .lrn-menu-btn,
    body header.lrn-header .lrn-menu-btn,
    .lrn-navbar .lrn-menu-btn {
      display: flex !important;
      flex-direction: column !important;
      justify-content: space-between !important;
      align-items: center !important;
      position: relative !important;
      top: -10px !important; /* 向上移动按钮，调整此数值：负数向上，正数向下 */
      z-index: 10002 !important;
      width: 28px !important;
      height: 20px !important;
      cursor: pointer !important;
      background: transparent !important;
      border: none !important;
      padding-top: 0px !important; /* 上内边距，可调整 */
      padding-bottom: 0px !important; /* 下内边距，可调整 */
      padding-left: 0px !important;
      padding-right: 0px !important;
      margin-top: 0px !important; /* 上外边距，可调整 */
      margin-bottom: 0px !important; /* 下外边距，可调整 */
      margin-left: 0px !important;
      margin-right: 0px !important;
    }
    
    /* 完全隐藏所有伪元素 */
    body .lrn-header .lrn-menu-btn::before,
    body .lrn-header .lrn-menu-btn::after,
    body .lrn-header .lrn-menu-btn span::before,
    body .lrn-header .lrn-menu-btn span::after {
      content: none !important;
      display: none !important;
      opacity: 0 !important;
      visibility: hidden !important;
      width: 0 !important;
      height: 0 !important;
    }
    
    /* 三条横线 - 每个span都是独立的横线 */
    body .lrn-header .lrn-menu-btn span,
    body header.lrn-header .lrn-menu-btn span {
      display: block !important;
      width: 24px !important;
      height: 2px !important;
      background: #1e3a8a !important;
      margin: 0 !important;
      padding: 0 !important;
      transition: all 0.3s ease !important;
      border-radius: 2px !important;
      transform-origin: center !important;
      position: relative !important;
      flex-shrink: 0 !important;
    }
    
    /* 打开状态：三横线变三竖线 */
    body .lrn-header .lrn-menu-btn.active,
    body header.lrn-header .lrn-menu-btn.active {
      flex-direction: row !important;
      justify-content: space-between !important;
      width: 28px !important;
      height: 20px !important;
    }
    
    body .lrn-header .lrn-menu-btn.active span,
    body header.lrn-header .lrn-menu-btn.active span {
      width: 2px !important;
      height: 20px !important;
      margin: 0 !important;
      background: #1e3a8a !important;
    }
  }
  
  /* 隐藏桌面菜单 */
  .lrn-navbar .lrn-main-menu,
  .lrn-navbar > .lrn-main-menu,
  nav.lrn-navbar > ul.lrn-main-menu {
    display: none !important;
  }
  
  /* ============================================
     CRITICAL: Mobile Menu Overlay - 左右分栏布局
     使用最高优先级覆盖 style.css
     ============================================ */
  
  /* 移动端菜单容器 - 全屏显示 - 覆盖所有原有样式 */
  body .lrn-header .lrn-navbar-mobile,
  body header.lrn-header .lrn-navbar-mobile,
  body .lrn-header nav.lrn-navbar-mobile,
  .lrn-navbar .lrn-navbar-mobile {
    position: fixed !important;
    top: 70px !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    width: 100% !important;
    height: calc(100vh - 70px) !important;
    background: #f5f7fa !important;
    z-index: 9999 !important;
    overflow: hidden !important;
    transform: translateX(-100%) !important;
    transition: transform 0.4s cubic-bezier(0.4, 0.0, 0.2, 1) !important;
    display: flex !important;
    flex-direction: row !important;
    padding: 0 !important;
    margin: 0 !important;
  }
  
  /* 移除原有的伪元素背景 */
  body .lrn-header .lrn-navbar-mobile:before,
  body header.lrn-header .lrn-navbar-mobile:before {
    display: none !important;
  }
  
  /* 当菜单打开时显示 */
  body .lrn-header.opened .lrn-navbar-mobile,
  body .lrn-header.show .lrn-navbar-mobile,
  body header.lrn-header.opened .lrn-navbar-mobile,
  body header.lrn-header.show .lrn-navbar-mobile {
    transform: translateX(0) !important;
  }
  
  /* 左侧一级菜单区域 */
  body .lrn-header .lrn-navbar-mobile .menu-primary,
  body header.lrn-header .lrn-navbar-mobile .menu-primary {
    width: 35% !important;
    min-width: 140px !important;
    max-width: 200px !important;
    background: #ffffff !important;
    border-right: 1px solid #e5e7eb !important;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch !important;
    padding: 10px 0 !important;
    margin: 0 !important;
    flex-shrink: 0 !important;
  }
  
  /* 右侧二级菜单区域 */
  body .lrn-header .lrn-navbar-mobile .menu-secondary,
  body header.lrn-header .lrn-navbar-mobile .menu-secondary {
    flex: 1 !important;
    background: #f9fafb !important;
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch !important;
    padding: 15px 12px !important;
    margin: 0 !important;
  }
  
  /* 隐藏原有的菜单结构 */
  body .lrn-header .lrn-navbar-mobile .lrn-main-menu,
  body header.lrn-header .lrn-navbar-mobile .lrn-main-menu {
    display: none !important;
  }
  
  /* ============================================
     一级菜单样式（左侧）
     ============================================ */
  
  body .lrn-header .lrn-navbar-mobile .menu-primary-item,
  body header.lrn-header .lrn-navbar-mobile .menu-primary-item {
    padding: 15px 12px !important;
    color: #374151 !important;
    font-size: 14px !important;
    font-weight: 500 !important;
    cursor: pointer !important;
    transition: all 0.3s ease !important;
    border-left: 3px solid transparent !important;
    position: relative !important;
    margin: 2px 0 !important;
    background: transparent !important;
  }
  
  body .lrn-header .lrn-navbar-mobile .menu-primary-item:hover {
    background: #f3f4f6 !important;
    color: #1e40af !important;
  }
  
  body .lrn-header .lrn-navbar-mobile .menu-primary-item.active {
    background: #e0f2fe !important;
    color: #0369a1 !important;
    border-left-color: #0369a1 !important;
    font-weight: 600 !important;
  }
  
  body .lrn-header .lrn-navbar-mobile .menu-primary-item.active::after {
    content: '' !important;
    position: absolute !important;
    right: 0 !important;
    top: 50% !important;
    transform: translateY(-50%) !important;
    width: 0 !important;
    height: 0 !important;
    border-top: 6px solid transparent !important;
    border-bottom: 6px solid transparent !important;
    border-right: 6px solid #f9fafb !important;
  }
  
  /* ============================================
     二级菜单样式（右侧）
     ============================================ */
  
  body .lrn-header .lrn-navbar-mobile .menu-secondary-group,
  body header.lrn-header .lrn-navbar-mobile .menu-secondary-group {
    display: none !important;
  }
  
  body .lrn-header .lrn-navbar-mobile .menu-secondary-group.active,
  body header.lrn-header .lrn-navbar-mobile .menu-secondary-group.active {
    display: block !important;
    animation: fadeInRight 0.3s ease !important;
  }
  
  @keyframes fadeInRight {
    from {
      opacity: 0;
      transform: translateX(20px);
    }
    to {
      opacity: 1;
      transform: translateX(0);
    }
  }
  
  body .lrn-header .lrn-navbar-mobile .menu-secondary-title,
  body header.lrn-header .lrn-navbar-mobile .menu-secondary-title {
    color: #1e40af !important;
    font-size: 11px !important;
    font-weight: 700 !important;
    text-transform: uppercase !important;
    letter-spacing: 0.5px !important;
    margin-bottom: 12px !important;
    padding-bottom: 8px !important;
    border-bottom: 2px solid #e5e7eb !important;
  }
  
  body .lrn-header .lrn-navbar-mobile .menu-secondary-item,
  body header.lrn-header .lrn-navbar-mobile .menu-secondary-item {
    display: block !important;
    padding: 12px 12px !important;
    color: #374151 !important;
    font-size: 14px !important;
    font-weight: 400 !important;
    text-decoration: none !important;
    border-radius: 6px !important;
    margin-bottom: 6px !important;
    transition: all 0.3s ease !important;
    background: #f9fafb !important;
    line-height: 1.4 !important;
  }
  
  body .lrn-header .lrn-navbar-mobile .menu-secondary-item:hover,
  body .lrn-header .lrn-navbar-mobile .menu-secondary-item:active,
  body header.lrn-header .lrn-navbar-mobile .menu-secondary-item:hover,
  body header.lrn-header .lrn-navbar-mobile .menu-secondary-item:active {
    background: #e0f2fe !important;
    color: #0369a1 !important;
    transform: translateX(4px) !important;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.08) !important;
  }
  
  /* 移动端菜单列表 */
  .lrn-navbar-mobile .lrn-main-menu,
  .lrn-navbar-mobile .lrn-main-menu > ul {
    display: block !important;
    list-style: none !important;
    padding: 0 !important;
    margin: 0 !important;
  }
  
  .lrn-navbar-mobile .lrn-main-menu > ul > li,
  .lrn-navbar-mobile .lrn-main-menu li.has-children {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1) !important;
    margin: 0 !important;
    padding: 0 !important;
    list-style: none !important;
    position: relative !important;
  }
  
  .lrn-navbar-mobile .lrn-main-menu > ul > li:last-child {
    border-bottom: none !important;
  }
  
  .lrn-navbar-mobile .lrn-main-menu > ul > li > a {
    display: block !important;
    padding: 20px 50px 20px 15px !important;
    color: #ffffff !important;
    font-size: 17px !important;
    font-weight: 600 !important;
    text-decoration: none !important;
    position: relative !important;
    background: transparent !important;
    transition: all 0.3s ease !important;
    border-radius: 8px !important;
    margin-bottom: 5px !important;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3) !important;
  }
  
  .lrn-navbar-mobile .lrn-main-menu > ul > li > a:hover,
  .lrn-navbar-mobile .lrn-main-menu > ul > li > a:active,
  .lrn-navbar-mobile .lrn-main-menu > ul > li.current-menu-item > a {
    color: #00d4ff !important;
    background: rgba(0, 168, 255, 0.15) !important;
    padding-left: 20px !important;
    transform: translateX(5px) !important;
  }
  
  /* 子菜单箭头图标 */
  .lrn-navbar-mobile .lrn-main-menu li.has-children > i,
  .lrn-navbar-mobile .lrn-main-menu > ul > li.has-children > i {
    position: absolute !important;
    right: 20px !important;
    top: 20px !important;
    font-size: 24px !important;
    color: #00d4ff !important;
    cursor: pointer !important;
    transition: transform 0.3s ease !important;
    z-index: 10 !important;
    padding: 5px !important;
  }
  
  .lrn-navbar-mobile .lrn-main-menu li.has-children.opened > i {
    transform: rotate(180deg) !important;
  }
  
  /* 子菜单容器 */
  .lrn-navbar-mobile .lrn-main-menu ul ul,
  .lrn-navbar-mobile .lrn-main-menu > ul > li > ul {
    display: none !important;
    list-style: none !important;
    padding: 10px 0 15px 15px !important;
    margin: 5px 0 10px 0 !important;
    background: rgba(0, 0, 0, 0.4) !important;
    border-left: 3px solid #00d4ff !important;
    border-radius: 8px !important;
  }
  
  .lrn-navbar-mobile .lrn-main-menu li.has-children.opened > ul {
    display: block !important;
  }
  
  .lrn-navbar-mobile .lrn-main-menu ul ul li {
    border-bottom: 1px solid rgba(255, 255, 255, 0.05) !important;
    margin: 0 !important;
  }
  
  .lrn-navbar-mobile .lrn-main-menu ul ul li:last-child {
    border-bottom: none !important;
  }
  
  .lrn-navbar-mobile .lrn-main-menu ul ul li a {
    display: block !important;
    padding: 15px 15px !important;
    color: rgba(255, 255, 255, 0.9) !important;
    font-size: 15px !important;
    font-weight: 500 !important;
    text-decoration: none !important;
    transition: all 0.3s ease !important;
    border-radius: 6px !important;
  }
  
  .lrn-navbar-mobile .lrn-main-menu ul ul li a:hover,
  .lrn-navbar-mobile .lrn-main-menu ul ul li.current-menu-item a {
    color: #00d4ff !important;
    padding-left: 20px !important;
    background: rgba(0, 212, 255, 0.1) !important;
  }
  
  /* ============================================
     Responsive Breakpoints
     ============================================ */
  
  /* 小屏手机 (max-width: 480px) */
  @media screen and (max-width: 480px) {
    .lrn-logo,
    .lrn-navbar .lrn-logo,
    .lrn-header .lrn-logo {
      max-width: 140px !important;
    }
    
    .lrn-logo img,
    .lrn-navbar .lrn-logo img,
    .lrn-header .lrn-logo img {
      max-height: 35px !important;
    }
    
    .lrn-navbar-mobile .lrn-main-menu > li > a {
      font-size: 15px !important;
      padding: 15px 45px 15px 10px !important;
    }
    
    .lrn-navbar-mobile .lrn-main-menu .sub-menu li a {
      font-size: 13px !important;
    }
  }
  
  /* 中等屏手机 (481px - 767px) */
  @media screen and (min-width: 481px) and (max-width: 767px) {
    .lrn-logo,
    .lrn-navbar .lrn-logo,
    .lrn-header .lrn-logo {
      max-width: 160px !important;
    }
    
    .lrn-logo img,
    .lrn-navbar .lrn-logo img,
    .lrn-header .lrn-logo img {
      max-height: 38px !important;
    }
  }
  
  /* 平板设备 (768px - 1024px) */
  @media screen and (min-width: 768px) and (max-width: 1024px) {
    .lrn-logo,
    .lrn-navbar .lrn-logo,
    .lrn-header .lrn-logo {
      max-width: 180px !important;
    }
    
    .lrn-logo img,
    .lrn-navbar .lrn-logo img,
    .lrn-header .lrn-logo img {
      max-height: 40px !important;
    }
    
    .lrn-navbar-mobile {
      padding: 40px 30px !important;
    }
  }
}

/* ============================================
   Desktop Fallback (1025px+)
   ============================================ */

@media screen and (min-width: 1025px) {
  /* 确保在桌面端移动菜单完全隐藏 */
  .lrn-navbar-mobile,
  nav.lrn-navbar-mobile {
    display: none !important;
  }
  
  .lrn-menu-btn,
  .lrn-navbar .lrn-menu-btn {
    display: none !important;
  }
}

/* ============================================
   Body Scroll Control (when mobile menu open)
   ============================================ */

body.mobile-menu-open {
  overflow: hidden !important;
}

/* 确保body默认可以滚动 */
@media screen and (max-width: 1024px) {
  body {
    overflow-x: hidden !important;
    overflow-y: auto !important;
    position: relative !important;
    width: 100% !important;
  }
}