/* 
 * 移动端聊天界面统一优化样式
 * 兼容各种移动设备和浏览器环境
 * ===================================
 */

/* 针对所有移动浏览器的通用样式 */
body.mobile-browser .input-action-buttons,
body.wechat-browser .input-action-buttons,
body.wx-browser .input-action-buttons,
body.safari-browser .input-action-buttons {
    display: flex !important;
    flex-direction: row !important;
    flex-wrap: nowrap !important;
    align-items: center !important;
    justify-content: flex-end !important;
    gap: 8px !important;
    flex-shrink: 0 !important;
    max-width: 140px !important;
}

/* 统一按钮样式 - 透明背景+边框 */
body.mobile-browser .input-tool-btn, 
body.mobile-browser .chat-send-btn,
body.wechat-browser .input-tool-btn, 
body.wechat-browser .chat-send-btn,
body.wx-browser .input-tool-btn, 
body.wx-browser .chat-send-btn,
body.safari-browser .input-tool-btn, 
body.safari-browser .chat-send-btn {
    width: 34px !important;
    height: 34px !important;
    min-width: 34px !important;
    min-height: 34px !important;
    border-radius: 50% !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    background-color: transparent !important; /* 移除底色 */
    border: 1px solid var(--gray-medium) !important;
    padding: 0 !important;
    margin: 0 !important;
    cursor: pointer !important;
    transition: all 0.2s ease !important;
    box-sizing: border-box !important;
    -webkit-appearance: none !important; /* 确保Safari中的默认按钮样式被移除 */
    appearance: none !important; /* 标准属性 */
}

/* 发送按钮特殊样式 */
body.mobile-browser .chat-send-btn,
body.wechat-browser .chat-send-btn,
body.wx-browser .chat-send-btn,
body.safari-browser .chat-send-btn {
    background-color: var(--primary-color) !important;
    border-color: var(--primary-color) !important;
    color: white !important;
}

/* 按钮内部图标居中显示 */
body.mobile-browser .input-tool-btn span, 
body.mobile-browser .chat-send-btn span,
body.wechat-browser .input-tool-btn span, 
body.wechat-browser .chat-send-btn span,
body.wx-browser .input-tool-btn span, 
body.wx-browser .chat-send-btn span,
body.safari-browser .input-tool-btn span,
body.safari-browser .chat-send-btn span {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 100% !important;
    height: 100% !important;
}

/* Safari浏览器特别处理 */
@media not all and (min-resolution:.001dpcm) {
    @supports (-webkit-appearance:none) {
        /* 针对Safari的特殊选择器 */
        html body .input-tool-btn, 
        html body .chat-send-btn {
            -webkit-appearance: none !important;
            appearance: none !important;
            background-color: transparent !important;
            border: 1px solid var(--gray-medium) !important;
        }
        
        html body .chat-send-btn {
            background-color: var(--primary-color) !important;
            border-color: var(--primary-color) !important;
        }
        
        /* 针对微信Safari的处理 */
        html body.wechat-browser.ios-device .chat-messages,
        html body.wx-browser.ios-device .chat-messages {
            /* 加强微信iOS上的滚动处理，防止上滑卡住 */
            position: absolute !important;
            -webkit-overflow-scrolling: touch !important;
            touch-action: pan-y !important;
        }
        
        /* 确保iOS Safari输入区域正确显示 */
        html body.ios-device .chat-input {
            -webkit-appearance: none !important;
            appearance: none !important;
        }
    }
}

/* 移动端基础优化 */
@media screen and (max-width: 768px) {
    /* 聊天输入区域优化 */
    .chat-input-container {
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        padding: 10px;
        background-color: #fff;
        box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
        display: flex !important;
        flex-direction: row !important; /* 确保是水平排列 */
        align-items: center !important;
        justify-content: space-between !important; /* 在主轴上分布空间 */
        z-index: 100;
        box-sizing: border-box !important; /* 确保内边距不增加总宽度 */
    }
    
    /* 输入框优化 */
    .chat-input {
        flex: 1 !important;
        min-height: 40px !important;
        height: auto !important;
        max-height: 80px !important;
        padding: 8px 12px !important;
        font-size: 15px !important; /* 防止iOS缩放 */
        margin-right: 8px !important;
        border-radius: 20px !important;
        box-sizing: border-box !important;
        overflow-y: auto !important;
    }
    
    /* 修复聊天消息滚动区域 */
    .chat-messages {
        -webkit-overflow-scrolling: touch !important; /* 增强iOS滑动体验 */
        overflow-y: auto !important;
        height: calc(100vh - 140px) !important; /* 减去固定区域高度 */
        padding-bottom: 70px !important;
        margin-bottom: 10px !important;
        position: relative !important;
        z-index: 1 !important;
    }
    
    /* 确保主内容区域正确高度 */
    .main-content {
        display: flex !important;
        flex-direction: column !important;
        height: 100vh !important;
        overflow: hidden !important;
    }
    
    /* 修复页脚在移动端的显示 */
    .chat-footer {
        margin-bottom: 60px;
        font-size: 12px;
        padding: 10px;
        text-align: center;
    }
    
    /* 修复文件上传对话框 */
    .file-upload-prompt {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: rgba(0, 0, 0, 0.5);
        z-index: 1000;
        display: none; /* 默认隐藏 */
    }
    
    .file-upload-prompt.visible {
        display: flex;
        justify-content: center;
        align-items: center;
    }
    
    .file-upload-content {
        width: 90%;
        max-width: 500px;
        background: white;
        border-radius: 12px;
        padding: 20px;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    }
    
    /* 上传区域优化 */
    #upload-area {
        padding: 20px;
        margin: 15px 0;
    }
    
    /* 文件操作按钮 */
    .file-actions {
        display: flex;
        gap: 10px;
        margin-top: 15px;
    }
    
    .file-actions .btn {
        flex: 1;
        min-height: 44px; /* 增加触摸区域 */
        font-size: 16px;
    }
    
    /* 确保取消按钮可点击 */
    #cancel-upload-btn {
        z-index: 1001;
        background-color: #f5f5f5;
        color: #333;
    }
    
    /* 确保选择文件按钮突出显示 */
    #select-file-btn {
        background-color: var(--primary-color);
        color: white;
    }
}

/* 微信浏览器特殊优化 */
body.wechat-browser .file-upload-prompt,
body.wx-browser .file-upload-prompt {
    display: none !important; /* 确保在微信中不会自动弹出 */
}

/* 针对微信浏览器修复取消按钮点击问题 */
body.wechat-browser #cancel-upload-btn,
body.wx-browser #cancel-upload-btn {
    position: relative;
    z-index: 2000;
    -webkit-tap-highlight-color: rgba(0,0,0,0); /* 消除点击高亮 */
    touch-action: manipulation; /* 优化触摸事件 */
}

/* 针对微信浏览器优化输入框和按钮排列 */
body.wechat-browser .chat-input-container,
body.wx-browser .chat-input-container,
body.mobile-browser .chat-input-container,
body.safari-browser .chat-input-container {
    padding: 8px 10px !important;
    box-sizing: border-box !important;
    display: flex !important;
    flex-direction: row !important;
    align-items: center !important;
    justify-content: space-between !important;
}

/* 微信浏览器滚动问题修复 */
body.wechat-browser .chat-messages,
body.wx-browser .chat-messages,
body.mobile-browser .chat-messages,
body.safari-browser .chat-messages {
    position: absolute !important;
    top: 60px !important; /* 根据头部高度调整 */
    left: 0 !important;
    right: 0 !important;
    bottom: 70px !important; /* 根据底部输入框高度调整 */
    overflow-y: auto !important;
    -webkit-overflow-scrolling: touch !important;
    padding-bottom: 80px !important;
    height: auto !important;
    z-index: 10 !important;
}

body.wechat-browser .main-content,
body.wx-browser .main-content,
body.mobile-browser .main-content,
body.safari-browser .main-content {
    position: relative !important;
    height: 100% !important;
    width: 100% !important;
    overflow: hidden !important;
}

/* iOS设备特殊处理 */
.ios-device .chat-input-container {
    padding-bottom: max(8px, env(safe-area-inset-bottom)) !important;
}

/* iOS微信特殊处理 */
body.wechat-browser.ios-device .chat-messages,
body.wx-browser.ios-device .chat-messages {
    -webkit-overflow-scrolling: touch !important;
    overflow-y: scroll !important; /* 确保iOS微信可以滚动 */
    touch-action: pan-y !important; /* 只允许垂直滚动 */
}

/* 微信上滑分享菜单防卡住处理 */
body.wechat-browser.ios-device {
    height: 100%;
    position: fixed;
    width: 100%;
    overflow: hidden;
}

/* 添加防止微信上滑分享菜单时卡住的保护层 */
body.wechat-browser.ios-device:after,
body.wx-browser.ios-device:after {
    content: "";
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    height: 44px;
    z-index: 999;
    background: transparent;
    pointer-events: none;
}

/* 针对iOS设备Safari浏览器的特殊处理 */
@supports (-webkit-touch-callout: none) {
    .chat-input-container {
        padding-bottom: max(10px, env(safe-area-inset-bottom)) !important;
    }
    
    .chat-input {
        -webkit-appearance: none !important;
        appearance: none !important;
        border-radius: 20px !important;
    }
    
    /* 修复iOS高版本Safari的滚动问题 */
    .chat-messages {
        -webkit-overflow-scrolling: touch !important;
    }
    
    /* Safari浏览器按钮修复 */
    body.safari-browser .input-tool-btn,
    body.ios-device:not(.wechat-browser) .input-tool-btn {
        background-color: transparent !important;
        border: 1px solid var(--gray-medium) !important;
        -webkit-appearance: none !important;
        appearance: none !important;
    }
    
    body.safari-browser .chat-send-btn,
    body.ios-device:not(.wechat-browser) .chat-send-btn {
        background-color: var(--primary-color) !important;
        border-color: var(--primary-color) !important;
        -webkit-appearance: none !important;
        appearance: none !important;
    }
    
    /* 确保Safari中按钮不会有默认样式 */
    input[type="button"],
    button {
        -webkit-appearance: none !important;
        appearance: none !important;
    }
}

/* 强制移除Safari和iOS中的按钮默认样式 */
@media screen and (max-width: 768px) {
    button, input[type="button"] {
        -webkit-appearance: none !important;
        appearance: none !important;
        background-image: none !important;
    }
    
    /* 确保按钮始终显示正确的样式 */
    .input-tool-btn, .chat-send-btn {
        background-color: transparent !important;
        border: 1px solid var(--gray-medium) !important;
    }
    
    .chat-send-btn {
        background-color: var(--primary-color) !important;
        border-color: var(--primary-color) !important;
    }
}

/* 微信iOS特别处理 */
body.wx-browser.ios-device .chat-input-container,
body.wechat-browser.ios-device .chat-input-container,
body.mobile-browser.ios-device .chat-input-container,
body.safari-browser.ios-device .chat-input-container {
    padding-bottom: max(8px, env(safe-area-inset-bottom)) !important;
}

/* 安卓系统特殊处理 */
body.android-device .chat-input-container {
    padding-bottom: 10px !important;
}

/* 鸿蒙系统特殊处理 */
body.harmonyos-device .chat-input-container {
    padding-bottom: 10px !important;
}

/* 小屏幕手机优化 */
@media screen and (max-width: 375px) {
    /* 更紧凑的按钮 */
    .input-action-buttons {
        gap: 6px !important;
    }
    
    /* 按钮更小 */
    .input-tool-btn, 
    .chat-send-btn {
        width: 32px !important;
        height: 32px !important;
        min-width: 32px !important;
        min-height: 32px !important;
    }
    
    /* 输入框更紧凑 */
    .chat-input {
        padding: 6px 10px !important;
        font-size: 14px !important;
    }
}

/* 解决DeepSeek API连接问题的辅助样式 */
.api-connection-error {
    background-color: #FFF3F3;
    border: 1px solid #FFCDD2;
    color: #B71C1C;
    padding: 10px;
    border-radius: 6px;
    margin: 10px 0;
    font-size: 14px;
    max-width: 90%;
    margin-left: auto;
    margin-right: auto;
}

.api-retry-btn {
    background-color: #B71C1C;
    color: white;
    border: none;
    padding: 6px 12px;
    border-radius: 4px;
    margin-top: 8px;
    cursor: pointer;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

/* 微信分享菜单防卡处理 */
.prevent-share-menu {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 10px;
    z-index: 1000;
    touch-action: none;
    pointer-events: none;
}

/* 添加顶部防拖动区域，防止微信下拉刷新 */
body.wechat-browser:before,
body.wx-browser:before {
    content: "";
    position: fixed;
    left: 0;
    right: 0;
    top: 0;
    height: 10px;
    z-index: 999;
    background: transparent;
}

/* 反色后颜色修复 - 确保即使在系统反色模式下按钮也能正确显示 */
@media (forced-colors: active) {
    .input-tool-btn, .chat-send-btn {
        forced-color-adjust: none;
    }
}