/* 重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    transition: background-color 0.3s, color 0.3s, border-color 0.3s;
}

:root {
    /* 亮色主题变量 - 微信风格 */
    --primary-color: #07C160;
    --secondary-color: #06AE56;
    --background-color: #F5F5F5;
    --sidebar-bg: #EDEDED;
    --card-bg: #FFFFFF;
    --text-color: #000000;
    --text-secondary: #888888;
    --border-color: #E0E0E0;
    --sent-bubble: #95EC69;
    --received-bubble: #FFFFFF;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --input-bg: #FFFFFF;
    --typing-indicator-bg: #f0f0f0;
    --header-bg: #F7F7F7;
    --active-highlight: #D9D9D9;
}

.dark-theme {
    /* 暗色主题变量 - 微信风格 */
    --primary-color: #07C160;
    --secondary-color: #06AE56;
    --background-color: #1E1E1E;
    --sidebar-bg: #2D2D2D;
    --card-bg: #242424;
    --text-color: #E0E0E0;
    --text-secondary: #7A7A7A;
    --border-color: #3D3D3D;
    --sent-bubble: #2B8C15;
    --received-bubble: #3D3D3D;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --input-bg: #3D3D3D;
    --typing-indicator-bg: #2a2a2a;
    --header-bg: #2D2D2D;
    --active-highlight: #3D3D3D;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    height: 100vh;
    overflow: hidden;
}

/* 微信风格布局 */
.wechat-container {
    display: flex;
    height: 100vh;
}

/* 左侧边栏样式 */
.wechat-sidebar {
    width: 280px;
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    padding: 15px;
    display: flex;
    align-items: center;
    background-color: var(--header-bg);
    border-bottom: 1px solid var(--border-color);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 6px;
    margin-right: 10px;
    object-fit: cover;
}

.sidebar-search {
    padding: 10px 15px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-search input {
    width: 100%;
    padding: 8px 12px;
    border-radius: 4px;
    border: none;
    background-color: var(--card-bg);
    color: var(--text-color);
}

.sidebar-contacts {
    flex: 1;
    overflow-y: auto;
}

.contact-item {
    display: flex;
    padding: 12px 15px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.contact-item:hover, .contact-item.active {
    background-color: var(--active-highlight);
}

.contact-avatar {
    width: 45px;
    height: 45px;
    border-radius: 4px;
    margin-right: 10px;
    object-fit: cover;
}

.contact-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.contact-name {
    font-weight: 500;
    margin-bottom: 4px;
}

.contact-preview {
    font-size: 12px;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 右侧主区域样式 */
.wechat-main {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.main-header {
    padding: 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--header-bg);
    border-bottom: 1px solid var(--border-color);
}

.header-contact {
    display: flex;
    align-items: center;
}

.header-avatar {
    width: 40px;
    height: 40px;
    border-radius: 4px;
    margin-right: 10px;
    object-fit: cover;
}

.header-info {
    display: flex;
    flex-direction: column;
}

.contact-status {
    font-size: 12px;
    color: var(--text-secondary);
}

.header-actions {
    display: flex;
}

.header-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    margin-left: 10px;
    border-radius: 4px;
    color: var(--text-color);
}

.header-btn:hover {
    background-color: var(--active-highlight);
}

.main-messages {
    flex: 1;
    overflow: hidden;
    position: relative;
    background-color: var(--background-color);
}

.messages-container {
    height: 100%;
    padding: 15px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.main-input {
    padding: 15px;
    background-color: var(--card-bg);
    border-top: 1px solid var(--border-color);
}

.input-container {
    display: flex;
    align-items: center;
    gap: 10px;
}

#message-input {
    flex: 1;
    padding: 10px 15px;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    background-color: var(--input-bg);
    color: var(--text-color);
    outline: none;
}

#message-input:focus {
    border-color: var(--primary-color);
}

.send-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 10px;
    border-radius: 50%;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.send-btn:hover {
    background-color: var(--secondary-color);
}

.send-btn:disabled {
    background-color: var(--border-color);
    cursor: not-allowed;
}

/* 消息样式 */
.message {
    display: flex;
    max-width: 70%;
    margin-bottom: 12px;
}

.message.received {
    align-self: flex-start;
}

.message.sent {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.message-avatar {
    width: 40px;
    height: 40px;
    border-radius: 4px;
    margin: 0 8px;
    object-fit: cover;
    align-self: flex-end;
}

.message-content {
    padding: 10px 14px;
    border-radius: 4px;
    font-size: 14px;
    line-height: 1.4;
    position: relative;
    max-width: 100%;
}

.received .message-content {
    background-color: var(--received-bubble);
    color: var(--text-color);
}

.sent .message-content {
    background-color: var(--sent-bubble);
    color: var(--text-color);
}

.message-time {
    font-size: 10px;
    color: var(--text-secondary);
    margin-top: 4px;
    text-align: right;
}

.sent .message-time {
    text-align: left;
}

/* 输入指示器 */
.chat-typing-indicator {
    display: none;
    padding: 10px 16px;
    background-color: var(--typing-indicator-bg);
    align-items: center;
    gap: 8px;
}

.chat-typing-indicator.active {
    display: flex;
}

.typing-dots {
    display: flex;
    align-items: center;
    height: 20px;
}

.typing-dots span {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--text-secondary);
    margin: 0 1px;
    display: inline-block;
    animation: typing-dots 1.4s infinite ease-in-out both;
}

.typing-dots span:nth-child(1) {
    animation-delay: -0.32s;
}

.typing-dots span:nth-child(2) {
    animation-delay: -0.16s;
}

@keyframes typing-dots {
    0%, 80%, 100% { 
        transform: scale(0.8);
        opacity: 0.5;
    }
    40% { 
        transform: scale(1);
        opacity: 1;
    }
}

.chat-typing-indicator p {
    font-size: 12px;
    color: var(--text-secondary);
}

/* 系统消息样式 */
.system-message {
    text-align: center;
    margin: 10px 0;
}

.system-message p {
    font-size: 12px;
    color: var(--text-secondary);
    background-color: var(--border-color);
    padding: 4px 12px;
    border-radius: 12px;
    display: inline-block;
}

/* 历史记录加载器 */
.history-loader {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px;
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
}

.history-loader.hidden {
    display: none;
}

.loading-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid var(--border-color);
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-right: 8px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.history-loader span {
    font-size: 12px;
    color: var(--text-secondary);
}

/* 认证界面样式 */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: var(--background-color);
}

.auth-form {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 10px var(--shadow-color);
    width: 100%;
    max-width: 400px;
    border: 1px solid var(--border-color);
}

.auth-form h2 {
    text-align: center;
    margin-bottom: 24px;
    color: var(--text-color);
    font-size: 24px;
    font-weight: 700;
}

.auth-tabs {
    display: flex;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--primary-color);
    background-color: var(--card-bg);
    border-radius: 4px 4px 0 0;
    overflow: hidden;
}

.tab-button {
    flex: 1;
    padding: 12px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.tab-button.active {
    color: var(--primary-color);
    background-color: rgba(7, 193, 96, 0.15);
    font-weight: 600;
}

.tab-button:not(.active):hover {
    color: var(--text-color);
    background-color: var(--border-color);
}

.tab-button.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

.auth-form input {
    width: 100%;
    padding: 12px;
    margin-bottom: 16px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--input-bg);
    color: var(--text-color);
    font-size: 16px;
    transition: border-color 0.3s ease;
}

.auth-form input:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 2px rgba(7, 193, 96, 0.2);
}

.auth-form button {
    width: 100%;
    padding: 12px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 600;
    transition: background-color 0.3s ease, transform 0.1s ease;
}

.auth-form button:hover {
    background-color: var(--secondary-color);
}

.auth-form button:active {
    transform: scale(0.98);
}

.error-message {
    color: #e74c3c;
    font-size: 14px;
    font-weight: 500;
    margin-top: 10px;
    text-align: center;
    padding: 8px;
    background-color: rgba(231, 76, 60, 0.1);
    border-radius: 4px;
    border-left: 3px solid #e74c3c;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.hidden {
    display: none !important;
}

/* 添加文本区域滚动支持 */
.form-group textarea {
    font-family: monospace;
    resize: vertical;
    min-height: 100px;
    max-height: 300px;
    overflow-y: auto;
}

/* 确保角色管理页面使用正确的主题变量 */
.role-management {
    background-color: var(--background-color);
    color: var(--text-color);
}

.role-management .wechat-container {
    background-color: var(--background-color);
}

.role-management .wechat-sidebar {
    background-color: var(--sidebar-bg);
}

.role-management .role-editor {
    background-color: var(--card-bg);
}

.role-management .editor-header {
    background-color: var(--header-bg);
    color: var(--text-color);
}

.role-management .form-group label {
    color: var(--text-color);
}

.role-management .form-group input,
.role-management .form-group textarea {
    background-color: var(--input-bg);
    color: var(--text-color);
    border-color: var(--border-color);
}

/* 滚动条样式 */
.messages-container::-webkit-scrollbar,
.sidebar-contacts::-webkit-scrollbar {
    width: 5px;
}

.messages-container::-webkit-scrollbar-track,
.sidebar-contacts::-webkit-scrollbar-track {
    background: transparent;
}

.messages-container::-webkit-scrollbar-thumb,
.sidebar-contacts::-webkit-scrollbar-thumb {
    background-color: var(--border-color);
    border-radius: 10px;
}

.messages-container::-webkit-scrollbar-thumb:hover,
.sidebar-contacts::-webkit-scrollbar-thumb:hover {
    background-color: var(--text-secondary);
}

/* 响应式设计 */

@media (max-width: 480px) {
    .main-header {
        padding: 10px;
    }
    
    .messages-container {
        padding: 10px;
    }
    
    .main-input {
        padding: 10px;
    }
    
    .message {
        max-width: 90%;
    }
    
    .auth-form {
        padding: 20px;
        margin: 10px;
    }
}

/* 在现有样式基础上添加以下内容 */

/* 增强移动端适配 */


@media (max-width: 480px) {
    .message {
        max-width: 90%;
    }
    
    .message-content {
        padding: 8px 12px;
        font-size: 13px;
    }
    
    .message-time {
        font-size: 9px;
    }
    
    .input-container {
        gap: 5px;
    }
    
    #message-input {
        padding: 8px 12px;
    }
    
    .send-btn {
        width: 35px;
        height: 35px;
    }
    
    .sidebar-search {
        padding: 8px 10px;
    }
    
    .sidebar-search input {
        padding: 6px 10px;
    }
    
    .contact-item {
        padding: 10px;
    }
    
    .contact-avatar {
        width: 40px;
        height: 40px;
    }
    
    .contact-name {
        font-size: 15px;
    }
    
    .contact-preview {
        font-size: 11px;
    }
    
    /* 角色管理页面特定适配 */
    .role-management .editor-content {
        padding: 15px;
    }
    
    .role-management .form-group {
        margin-bottom: 15px;
    }
    
    .role-management .form-actions {
        flex-direction: column;
    }
    
    .role-management .btn-primary, 
    .role-management .btn-danger {
        width: 100%;
    }
}

/* 防止移动端输入框放大 */
@media screen and (max-width: 768px) {
    input, select, textarea {
        font-size: 16px !important; /* 防止iOS缩放 */
    }
}

/* 移动端触摸友好元素 */
@media (hover: none) and (pointer: coarse) {
    .contact-item, .role-item, .header-btn, .send-btn, .sidebar-btn {
        min-height: 44px; /* 苹果推荐的最小触摸目标尺寸 */
    }
    
    input, select, textarea, button {
        font-size: 16px; /* 防止iOS缩放 */
    }
}



@media (max-width: 768px) {

    .mobile-menu-btn {
        display: block !important;
        position: fixed;
        top: 15px;
        left: 15px;
        z-index: 1000;
        background-color: var(--card-bg);
        border-radius: 50%;
        width: 40px;
        height: 40px;
        box-shadow: 0 2px 5px var(--shadow-color);
    }
    
    .wechat-sidebar {
        position: fixed;
        top: 0;
        left: -100%;
        width: 80%;
        height: 100vh;
        z-index: 999;
        transition: left 0.3s ease;
        box-shadow: 2px 0 5px var(--shadow-color);

        max-height: 40vh;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    
    .wechat-sidebar.active {
        left: 0;
    }
    
    .sidebar-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: rgba(0, 0, 0, 0.5);
        z-index: 998;
    }
    
    .sidebar-overlay.active {
        display: block;
    }

    .wechat-container {
        height: 100vh;
        overflow: hidden;
        flex-direction: column;
    }
    
    .sidebar-header {
        padding: 10px;
    }
    
    .main-header {
        padding: 10px;
    }
    
    .header-avatar {
        width: 35px;
        height: 35px;
    }
    
    .contact-name {
        font-size: 16px;
    }
    
    .contact-status {
        font-size: 11px;
    }
    
    .header-btn {
        padding: 6px;
        margin-left: 5px;
    }
    
    .messages-container {
        flex: 1;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch; /* 平滑滚动 */
        padding: 10px;
        padding-bottom: 70px; /* 为输入框留出空间 */
    }
    
    .message {
        max-width: 85%;
        margin-bottom: 10px;
    }
    
    .message-avatar {
        width: 35px;
        height: 35px;
    }
    
    .main-input {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        z-index: 1000;
        background-color: var(--card-bg);
        padding: 10px;
        border-top: 1px solid var(--border-color);
    }
    
    /* 角色管理页面特定适配 */
    .role-management .wechat-container {
        flex-direction: column;
    }
    
    .role-management .wechat-sidebar {
        width: 100%;
        height: auto;
        max-height: 40vh;
    }
    
    .role-management .role-editor {
        width: 100%;
    }

    .main-messages {
        flex: 1;
        overflow: hidden;
        display: flex;
        flex-direction: column;
        position: relative;
    }

    .input-container {
        display: flex;
        gap: 8px;
    }

    #message-input {
        flex: 1;
        padding: 12px;
        border-radius: 20px;
        border: 1px solid var(--border-color);
        background-color: var(--input-bg);
        color: var(--text-color);
    }

    .send-btn {
        width: 50px;
        height: 50px;
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        background-color: var(--primary-color);
        color: white;
        border: none;
    }

    /* 确保聊天区域不会被键盘遮挡 */
    .wechat-main {
        position: relative;
        height: 100vh;
        display: flex;
        flex-direction: column;
    }

}