@media (max-width: 768px) { 
    /* 支付按钮布局 */
    .payment-buttons { 
        display: grid; 
        grid-template-columns: 1fr 1fr; 
        gap: 10px !important; 
    } 
    
    .payment-btn, .btn-wechat, .btn-alipay { 
        padding: 8px 0 !important; 
        font-size: 15px !important; 
        height: 50px !important; 
        line-height: 1.3 !important; 
        display: flex !important; 
        align-items: center !important; 
        justify-content: center !important; 
        text-align: center !important; 
    } 
    
    .btn-view { 
        height: 40px !important; 
        font-size: 15px !important; 
        display: flex !important; 
        align-items: center !important; 
        justify-content: center !important; 
        text-align: center !important; 
    } 
    
    /* 调整顶部导航栏整体样式 */
    .navbar {
        background: #CC0000 !important;
        display: flex !important;
        width: 100% !important;
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        z-index: 1000 !important;
        transition: transform 0.3s ease !important;
        will-change: transform !important; /* 性能优化：使用GPU加速 */
        contain: layout size !important; /* 性能优化：隔离DOM更新 */
    }
    
    /* 隐藏导航栏中的"聚福论坛"文字 */
    .nav-logo {
        display: none !important;
    }
    
    /* 也可以选择替换为一个图标 */
    .nav-logo:before {
        content: ""; /* 清空伪元素内容 */
        display: inline-block !important;
        width: 24px !important;
        height: 24px !important;
        background-color: rgba(255, 255, 255, 0.8) !important;
        /* 使用SVG数据URI而不是mask-image更高效 */
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 576 512'%3E%3Cpath fill='%23CC0000' d='M280.37 148.26L96 300.11V464a16 16 0 0 0 16 16l112.06-.29a16 16 0 0 0 15.92-16V368a16 16 0 0 1 16-16h64a16 16 0 0 1 16 16v95.64a16 16 0 0 0 16 16.05L464 480a16 16 0 0 0 16-16V300L295.67 148.26a12.19 12.19 0 0 0-15.3 0zM571.6 251.47L488 182.56V44.05a12 12 0 0 0-12-12h-56a12 12 0 0 0-12 12v72.61L318.47 43a48 48 0 0 0-61 0L4.34 251.47a12 12 0 0 0-1.6 16.9l25.5 31A12 12 0 0 0 45.15 301l235.22-193.74a12.19 12.19 0 0 1 15.3 0L530.9 301a12 12 0 0 0 16.9-1.6l25.5-31a12 12 0 0 0-1.7-16.93z'%3E%3C/path%3E%3C/svg%3E") !important;
        background-repeat: no-repeat !important;
        background-position: center !important;
        background-size: contain !important;
    }
    
    .nav-container {
        display: flex !important;
        width: 100% !important;
        max-width: 100% !important;
        padding: 0 !important; /* 移除容器内边距，让首页图标贴近边缘 */
        justify-content: space-between !important;
        contain: layout !important; /* 性能优化：隔离DOM更新 */
    }
    
    .nav-left {
        display: flex !important;
        align-items: center !important;
    }
    
    .nav-right {
        display: flex !important;
        align-items: center !important;
        gap: 2px !important;
        margin-right: 5px !important; /* 确保右侧有一点间距 */
    }
    
    /* 隐藏余额显示区域 */
    .balance-info {
        display: none !important;
        width: 0 !important;
        height: 0 !important;
        opacity: 0 !important;
        visibility: hidden !important;
        position: absolute !important;
        left: -9999px !important;
    }
    
    /* 调整顶部导航栏中"首页"和"个人中心"文字样式 */
    .nav-menu-item, .profile-link {
        font-weight: 700 !important; /* 加粗 */
        font-size: 16px !important; /* 适当字号 */
        display: flex !important; /* 确保显示 */
        padding: 6px 10px !important;
        contain: content !important; /* 性能优化 */
        background: transparent !important; /* 默认无背景 */
        box-shadow: none !important; /* 默认无阴影 */
    }
    
    /* 仅在活动/选中状态下显示背景阴影 */
    .nav-menu-item.active, .profile-link.active {
        background: rgba(0, 0, 0, 0.2) !important; /* 选中时显示半透明背景 */
        box-shadow: inset 0 -2px 0 rgba(255, 255, 255, 0.3) !important; /* 底部小阴影提示选中状态 */
    }
    
    /* 优化图标加载性能 */
    .nav-menu-item i, .profile-link i, .user-avatar i {
        /* 预留图标空间，减少布局偏移 */
        width: 16px !important;
        height: 16px !important;
        display: inline-flex !important;
        align-items: center !important;
        justify-content: center !important;
        margin-right: 4px !important;
        will-change: opacity !important; /* 使用GPU加速 */
    }
    
    /* 确保用户头像在移动端清晰显示并启用下拉菜单 */
    .user-avatar {
        border: 1px solid rgba(255, 255, 255, 0.7) !important;
        width: 28px !important;
        height: 28px !important;
        display: flex !important; /* 确保显示 */
        align-items: center !important;
        justify-content: center !important;
        will-change: transform !important; /* 使用GPU加速转换 */
        contain: layout !important; /* 修改为layout以允许子元素显示 */
        position: relative !important; /* 确保可以作为下拉菜单的定位父元素 */
        z-index: 1100 !important; /* 提高层级，确保下拉菜单可见 */
        cursor: pointer !important; /* 添加指针光标提示可点击 */
    }
    
    /* 确保用户菜单正确显示 */
    .user-menu {
        display: flex !important;
        align-items: center !important;
        position: relative !important; /* 添加相对定位 */
        z-index: 1100 !important; /* 确保用户菜单高于其他元素 */
    }
    
    /* 修复下拉菜单样式 */
    .dropdown-menu {
        display: none; /* 默认隐藏 */
        position: absolute !important;
        top: 100% !important;
        right: 0 !important; /* 从右侧对齐 */
        background-color: white !important;
        box-shadow: 0 2px 10px rgba(0,0,0,0.2) !important;
        border-radius: 4px !important;
        padding: 5px 0 !important;
        z-index: 1200 !important; /* 确保高于其他元素 */
        width: auto !important;
        min-width: 120px !important;
        transition: opacity 0.2s ease, visibility 0.2s ease !important;
        opacity: 0 !important;
        visibility: hidden !important;
    }
    
    /* 当下拉菜单显示时的样式 */
    .dropdown-menu.show {
        display: block !important;
        opacity: 1 !important;
        visibility: visible !important;
    }
    
    /* 添加悬停和点击触发 - 悬停在用户头像上显示下拉菜单 */
    .user-menu:hover .dropdown-menu,
    .user-menu:focus .dropdown-menu,
    .user-menu:focus-within .dropdown-menu {
        display: block !important;
        opacity: 1 !important;
        visibility: visible !important;
    }
    
    /* 支持点击事件：通过添加active类触发下拉菜单显示 */
    .user-menu.active .dropdown-menu {
        display: block !important;
        opacity: 1 !important;
        visibility: visible !important;
    }
    
    /* 下拉菜单项样式 */
    .dropdown-item {
        padding: 8px 15px !important;
        font-size: 14px !important;
        color: #333 !important;
        display: block !important;
        width: 100% !important;
        text-align: left !important;
        white-space: nowrap !important;
        transition: background-color 0.15s ease !important;
    }
    
    /* 强化下拉菜单项悬停效果 */
    .dropdown-item:hover,
    .dropdown-item:focus {
        background-color: rgba(0,0,0,0.05) !important;
        color: #000 !important;
        text-decoration: none !important;
    }
    
    /* 隐藏导航栏中的登录和注册按钮 */
    .auth-links, .btn-login, .btn-register {
        display: none !important;
    }
    
    /* 确保个人中心在移动端显示 */
    .nav-right .profile-link {
        display: flex !important;
        align-items: center !important;
        background: rgba(255, 255, 255, 0.1) !important;
        border-radius: 4px !important;
        padding: 6px 10px !important;
        margin-right: 0 !important; /* 移除右边距 */
        pointer-events: auto !important; /* 确保点击事件可以被捕获 */
        cursor: pointer !important; /* 明确表示这是可点击元素 */
        z-index: 1050 !important; /* 确保高于其他元素 */
        position: relative !important; /* 确保z-index生效 */
    }
    
    /* 个人中心按钮内部元素点击 */
    .profile-link * {
        pointer-events: auto !important; /* 确保所有子元素都能接收点击事件 */
    }
    
    /* 将首页导航项移到最左侧 */
    .nav-left .nav-menu-item {
        padding-left: 0 !important;
        margin-left: 0 !important;
        background: transparent !important; /* 确保默认状态无背景 */
    }

    /* 修复首页导航项样式 - 覆盖之前的样式定义 */
    .nav-menu-item {
        color: #ffffff !important;
        text-shadow: none !important;
        box-shadow: none !important;
        background: transparent !important; /* 确保背景透明 */
        padding: 0 12px !important;
        height: 60px !important;
        display: flex !important;
        align-items: center !important;
        border-radius: 0 !important;
    }
    
    /* 只在悬停和活动状态显示轻微背景，使用与导航栏一致的红色背景 */
    .nav-menu-item:hover,
    .nav-menu-item:active {
        background: #CC0000 !important; /* 使用与导航栏相同的红色 */
        box-shadow: inset 0 -2px 0 rgba(255, 255, 255, 0.3) !important; /* 底部小阴影 */
        text-shadow: none !important; 
        color: #fff !important;
    }
    
    /* 清除对active状态的冲突定义 */
    .nav-menu-item.active {
        background: transparent !important;
        box-shadow: none !important;
    }

    /* 移动端登录表单样式 */
    .login-form {
        width: 100% !important;
        max-width: 100% !important;
        padding: 0 15px !important;
    }

    .form-group input {
        height: 40px !important;
        font-size: 14px !important;
        padding: 8px 12px !important;
        width: 100% !important;
        border-radius: 4px !important;
        border: 1px solid #3d3d3d !important;
        background-color: #3d3d3d !important;
        color: #fff !important;
    }

    .btn-login {
        width: 100% !important;
        height: 40px !important;
        font-size: 14px !important;
        margin-top: 20px !important;
        border-radius: 4px !important;
        background-color: #87c441 !important;
        color: white !important;
        border: none !important;
        display: block !important;
        opacity: 1 !important;
        visibility: visible !important;
    }

    .login-link {
        margin-top: 15px !important;
        text-align: center !important;
        font-size: 14px !important;
        color: #999 !important;
    }

    .login-link a {
        color: #87c441 !important;
        text-decoration: none !important;
    }
    
    /* 强制隐藏按钮中的所有图标 */
    .payment-btn img, .btn-wechat img, .btn-alipay img {
        display: none !important;
        width: 0 !important;
        height: 0 !important;
        opacity: 0 !important;
        visibility: hidden !important;
        position: absolute !important;
        left: -9999px !important;
    }
    
    /* 隐藏payment-icon类的所有元素 */
    .payment-icon {
        display: none !important;
        width: 0 !important;
        height: 0 !important;
        opacity: 0 !important;
        visibility: hidden !important;
        position: absolute !important;
        left: -9999px !important;
    }
    
    /* 广告滚动区域调整 - 确保不被导航栏遮挡 */
    .ad-scroll-container {
        margin-top: 60px !important; /* 与导航栏高度一致 */
        position: relative !important;
        z-index: 10 !important; /* 确保低于导航栏 */
    }
    
    /* 内容区域调整 */
    .main-content {
        padding-top: 70px !important;
        width: 100% !important;
        max-width: 100% !important;
        overflow-x: hidden !important;
    }
    
    /* 卡片样式优化 */
    .card {
        margin: 10px !important;
        padding: 15px !important;
        border-radius: 6px !important;
    }
    
    /* 表单和按钮优化 */
    .form-control {
        font-size: 14px !important;
        padding: 8px 10px !important;
        height: 40px !important;
    }
    
    .btn {
        padding: 8px 12px !important;
        font-size: 14px !important;
        height: auto !important;
    }
    
    /* 栅格系统调整 */
    .row {
        margin-left: -5px !important;
        margin-right: -5px !important;
    }
    
    .col, .col-6, .col-12 {
        padding-left: 5px !important;
        padding-right: 5px !important;
    }

    /* 首页大师头像修复 */
    .masters-grid .master-avatar {
        width: 50px !important;
        height: 50px !important;
        min-width: 50px !important;
        min-height: 50px !important;
        border-radius: 50% !important;
        overflow: hidden !important;
        margin-right: 10px !important;
        position: relative !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        background-color: #f0f0f0 !important;
    }
    
    .masters-grid .master-avatar img,
    .masters-grid .master-avatar .avatar-image {
        width: 100% !important;
        height: 100% !important;
        position: absolute !important;
        top: 0 !important;
        left: 0 !important;
        object-fit: cover !important;
        border-radius: 50% !important;
    }
    
    .masters-grid .master-avatar i {
        font-size: 30px !important;
        color: #ccc !important;
    }
    
    /* 确保大师卡片头部布局正确 */
    .masters-grid .master-header {
        display: flex !important;
        align-items: center !important;
        width: 100% !important;
        margin-bottom: 10px !important;
    }
    
    /* 确保标题区域正确显示 */
    .masters-grid .master-title {
        font-size: 16px !important;
        font-weight: 600 !important;
        color: #333 !important;
        display: flex !important;
        align-items: center !important;
        gap: 8px !important;
        flex: 1 !important;
    }
    
    /* 确保简介文本区域正确显示 */
    .masters-grid .master-intro {
        width: 100% !important;
        font-size: 14px !important;
        line-height: 1.5 !important;
        max-height: 60px !important;
        overflow: hidden !important;
        color: #666 !important;
    }
    
    /* 确保大师列表卡片样式 */
    .masters-grid .master-card {
        width: 100% !important;
        padding: 15px !important;
        background: white !important;
        border-radius: 10px !important;
        box-shadow: 0 2px 5px rgba(0,0,0,0.1) !important;
        margin-bottom: 15px !important;
        display: flex !important;
        flex-direction: column !important;
    }

    /* 终极修复：确保首页没有背景阴影 - 放在最后以确保覆盖其他样式 */
    html body .navbar .nav-container .nav-left .nav-menu a.nav-menu-item[href="/"] {
        background-color: transparent !important;
        background: transparent !important;
        box-shadow: none !important;
    }
    
    /* 确保 active 类只在点击或交互时生效 - 使用红色背景 */
    html body .navbar .nav-container .nav-left .nav-menu a.nav-menu-item[href="/"]:active,
    html body .navbar .nav-container .nav-left .nav-menu a.nav-menu-item[href="/"]:hover {
        background: #CC0000 !important; /* 使用与导航栏相同的红色 */
        box-shadow: inset 0 -2px 0 rgba(255, 255, 255, 0.3) !important;
    }
    
    /* 覆盖所有可能的样式 */
    .navbar a[href="/"],
    .nav-menu a[href="/"],
    .nav-menu-item[href="/"],
    a.nav-menu-item[href="/"],
    .nav-menu-item[href="/"]:not(:hover):not(:active) {
        background-color: transparent !important;
        background: transparent !important;
        box-shadow: none !important;
    }

    /* 特别覆盖active类样式 */
    .navbar a[href="/"].active,
    .nav-menu a[href="/"].active,
    .nav-menu-item[href="/"].active,
    a.nav-menu-item[href="/"].active,
    .nav-left .nav-menu-item[href="/"].active,
    .nav-menu .nav-menu-item[href="/"].active {
        background-color: transparent !important;
        background: transparent !important;
        box-shadow: none !important;
        text-shadow: none !important;
    }
}

/* 在中小屏幕上的调整 (480px - 767px) */
@media (min-width: 481px) and (max-width: 767px) {
    .navbar {
        height: 60px !important;
    }
    
    .main-content {
        padding-top: 65px !important;
    }
    
    /* 调整广告滚动区域 */
    .ad-scroll-container {
        margin-top: 60px !important;
    }
    
    /* 调整表格显示 */
    table {
        display: block !important;
        overflow-x: auto !important;
        white-space: nowrap !important;
    }
    
    /* 确保在所有移动设备上隐藏余额显示 */
    .balance-info {
        display: none !important;
        width: 0 !important;
        height: 0 !important;
        opacity: 0 !important;
        visibility: hidden !important;
        position: absolute !important;
        left: -9999px !important;
    }
}

/* 在超小屏幕上的额外调整 */
@media (max-width: 480px) {
    .navbar {
        height: 50px !important;
    }
    
    .main-content {
        padding-top: 55px !important;
    }
    
    /* 调整广告滚动区域 */
    .ad-scroll-container {
        margin-top: 50px !important; /* 与导航栏高度一致 */
    }
    
    /* 调整导航项高度 */
    .nav-menu-item {
        height: 50px !important;
        background: transparent !important;
        box-shadow: none !important;
    }
    
    /* 确保首页导航项在超小屏幕上无背景阴影 */
    .nav-menu-item[href="/"],
    .nav-menu-item[href="/"].active {
        background: transparent !important;
        box-shadow: none !important;
        text-shadow: none !important;
    }
    
    /* 确保头像大小合适 */
    .user-avatar {
        width: 24px !important;
        height: 24px !important;
        display: flex !important; /* 确保显示 */
    }
    
    /* 个人中心只显示图标 */
    .profile-link span {
        display: none !important;
    }
    
    .profile-link i {
        font-size: 16px !important;
        display: inline-block !important; /* 确保显示 */
    }
    
    /* 确保个人中心图标在超小屏幕上显示 */
    .profile-link {
        display: flex !important;
        padding: 6px !important;
    }
    
    /* 调整表格显示 */
    table {
        display: block !important;
        overflow-x: auto !important;
        white-space: nowrap !important;
        font-size: 12px !important;
    }
    
    /* 调整表单元素 */
    input, select, textarea {
        font-size: 14px !important;
    }
    
    /* 隐藏非关键内容 */
    .hide-xs {
        display: none !important;
    }

    /* 兼容不同分辨率设备的头像大小处理 */
    .masters-grid .master-avatar {
        width: 45px !important;
        height: 45px !important;
        min-width: 45px !important;
        min-height: 45px !important;
    }
    
    /* 确保在超小屏幕上隐藏余额显示 */
    .balance-info {
        display: none !important;
        width: 0 !important;
        height: 0 !important;
        opacity: 0 !important;
        visibility: hidden !important;
        position: absolute !important;
        left: -9999px !important;
    }
    
    /* 确保在超小屏幕上悬停/点击时使用红色背景 */
    .nav-menu-item:hover,
    .nav-menu-item:active {
        background: #CC0000 !important;
        box-shadow: inset 0 -2px 0 rgba(255, 255, 255, 0.3) !important;
    }
}

@media (max-width: 375px) {
    .masters-grid .master-avatar {
        width: 40px !important;
        height: 40px !important;
        min-width: 40px !important;
        min-height: 40px !important;
    }
    
    /* 确保在最小屏幕上隐藏余额显示 */
    .balance-info {
        display: none !important;
        width: 0 !important;
        height: 0 !important;
        opacity: 0 !important;
        visibility: hidden !important;
        position: absolute !important;
        left: -9999px !important;
    }
}

/* 横屏模式优化 */
@media (orientation: landscape) and (max-width: 768px) {
    .navbar {
        height: 45px !important;
    }
    
    .main-content {
        padding-top: 50px !important;
    }
    
    /* 调整广告滚动区域 */
    .ad-scroll-container {
        margin-top: 45px !important; /* 与导航栏高度一致 */
    }
    
    .user-avatar {
        width: 22px !important;
        height: 22px !important;
    }
    
    .profile-link {
        padding: 4px 8px !important;
    }
    
    .nav-menu-item {
        padding: 4px 8px !important;
        font-size: 14px !important;
    }
    
    /* 确保在横屏模式下隐藏余额显示 */
    .balance-info {
        display: none !important;
        width: 0 !important;
        height: 0 !important;
        opacity: 0 !important;
        visibility: hidden !important;
        position: absolute !important;
        left: -9999px !important;
    }
}

/* 深色模式支持 */
@media (prefers-color-scheme: dark) {
    body {
        background-color: #121212 !important;
        color: #e0e0e0 !important;
    }
    
    .navbar {
        background: #990000 !important;
    }
    
    .card, .modal-content {
        background-color: #1e1e1e !important;
        color: #e0e0e0 !important;
    }
    
    input, select, textarea {
        background-color: #2d2d2d !important;
        color: #e0e0e0 !important;
        border-color: #444 !important;
    }
    
    .btn-primary {
        background-color: #d92626 !important;
    }
    
    .btn-secondary {
        background-color: #6aab2e !important;
    }
    
    /* 深色模式下的下拉菜单 */
    .dropdown-menu {
        background-color: #2d2d2d !important;
        border-color: #444 !important;
    }
    
    .dropdown-item {
        color: #e0e0e0 !important;
    }
    
    .dropdown-item:hover {
        background-color: #3d3d3d !important;
    }
}

/* 高分辨率设备优化 */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    /* 高清图标和字体优化 */
    .icon {
        transform: scale(0.8) !important;
    }
    
    /* 提高边框锐利度 */
    * {
        -webkit-font-smoothing: antialiased !important;
        -moz-osx-font-smoothing: grayscale !important;
    }
}

/* 彻底隐藏余额和充值按钮 */
.balance-info,
.btn-recharge,
[class*="balance-"],
[class*="recharge-"] {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
    width: 0 !important;
    height: 0 !important;
    padding: 0 !important;
    margin: 0 !important;
    overflow: hidden !important;
    position: absolute !important;
    pointer-events: none !important;
}

/* 隐藏福彩3D标记 - 使用更可靠的CSS选择器 */
.master-title strong,
.master-title b,
.master-title-link strong,
.master-title-link b {
    display: none !important;
}

/* 使用属性选择器处理特定文本 */
[data-filtered="true"] {
    font-weight: normal !important;
}