@media (min-width: 1200px) {
    .sidebar {
        width: 280px;
    }
    
    .messages {
        padding: var(--spacing-xl);
    }
}
@media (max-width: 1199px) and (min-width: 992px) {
    .sidebar {
        width: 240px;
    }
    
    .message-content {
        max-width: 75%;
    }
}
@media (max-width: 991px) and (min-width: 768px) {
    .sidebar {
        width: 200px;
    }
    
    .logo span {
        display: none;
    }
    
    .user-info span {
        display: none;
    }
    
    .message-content {
        max-width: 80%;
    }
    
    .emoji-category {
        grid-template-columns: repeat(8, 1fr);
    }
}
@media (max-width: 767px) {
    :root {
        --mobile-navbar-h: 52px;
    }
    @supports (padding-top: env(safe-area-inset-top, 0px)) {
        :root {
            --mobile-navbar-h: calc(52px + env(safe-area-inset-top, 0px));
        }
    }
    
    .navbar {
        height: var(--mobile-navbar-h);
        padding-top: env(safe-area-inset-top, 0px);
        box-sizing: border-box;
    }
    
    .private-chat-page {
        height: 100vh;
        height: 100dvh;
    }
    
    .private-chat-navbar {
        height: calc(48px + env(safe-area-inset-top, 0px));
        padding: calc(8px + env(safe-area-inset-top, 0px)) 12px;
        box-sizing: border-box;
    }
    
    .private-chat-title span:first-child {
        font-size: 15px;
    }
    
    .private-chat-title span:last-child {
        font-size: 11px;
    }
    
    .private-chat-messages {
        padding: 12px;
        gap: 10px;
    }
    
    .private-chat-messages .message {
        max-width: 85%;
    }
    
    .private-chat-input-area {
        padding: 8px 12px;
    }
    
    .private-chat-tools {
        gap: 12px;
        margin-bottom: 8px;
    }
    
    .private-chat-tools .btn-icon {
        font-size: 20px;
        padding: 6px;
    }
    
    .private-chat-input-container input {
        padding: 10px 14px;
        font-size: 14px;
    }
    
    .private-chat-input-container .btn-primary {
        min-width: 44px;
        height: 44px;
    }
    
    
    .main-content {
        flex-direction: column;
    }
    
    
    .sidebar {
        position: fixed;
        top: var(--mobile-navbar-h);
        left: -280px;
        width: 280px;
        height: calc(100vh - var(--mobile-navbar-h));
        height: calc(100dvh - var(--mobile-navbar-h));
        z-index: 1000;
        box-shadow: var(--shadow-xl);
        transition: transform 0.3s ease;
        transform: translateX(0);
    }
    
    .sidebar.left-sidebar.open {
        transform: translateX(280px);
    }
    
    .sidebar.right-sidebar {
        left: auto;
        right: -280px;
        transform: translateX(0);
    }
    
    .sidebar.right-sidebar.open {
        transform: translateX(-280px);
    }
    
    
    .navbar {
        padding: env(safe-area-inset-top, 0px) var(--spacing-md);
    }
    
    .logo span {
        display: none;
    }
    
    .room-info {
        font-size: var(--font-size-md);
    }
    
    .user-info span {
        display: none;
    }
    
    
    .messages {
        padding: var(--spacing-md);
        gap: var(--spacing-sm);
    }
    
    .message-content {
        max-width: 85%;
    }
    
    .message-image {
        max-width: 180px;
    }
    
    .message-video {
        max-width: 260px;
    }
    
    .message-file {
        min-width: 180px;
        max-width: 280px;
        padding: var(--spacing-sm);
    }
    
    .message-file .file-icon {
        font-size: 24px;
    }
    
    .message-file .file-name {
        font-size: var(--font-size-xs);
    }
    
    .message-file .file-size {
        font-size: 10px;
    }
    
    .message-file .file-download-icon {
        font-size: 14px;
    }
    
    
    .input-area {
        padding: var(--spacing-md);
        padding-bottom: calc(var(--spacing-md) + env(safe-area-inset-bottom));
        flex-shrink: 0;
    }
    
    .input-tools {
        justify-content: center;
    }
    
    
    .modal-content {
        width: 100%;
        max-width: 400px;
        margin: auto;
        max-height: calc(100vh - 24px);
        max-height: calc(100dvh - 24px);
    }
    
    
    .emoji-panel {
        position: static;
        left: auto;
        right: auto;
        bottom: auto;
        transform: none;
        width: 100%;
        max-width: 100%;
        flex-shrink: 0;
        border-radius: 0;
        padding: 8px 6px calc(8px + env(safe-area-inset-bottom));
        box-shadow: none;
        border-top: none;
        background-color: #F7F7F7;
        animation: slideUp var(--transition-normal);
    }
    
    [data-theme="dark"] .emoji-panel {
        background-color: #2A2A2A;
    }
    
    /* 私聊页：面板背景与私聊输入区一致（浅色半透明白 / 深色 #2A2A2A） */
    .private-chat-page .emoji-panel {
        background-color: var(--surface-color);
    }
    
    .emoji-panel .emoji-content {
        max-height: 30vh;
        max-height: 30dvh;
    }
    
    /* 表情面板打开时输入区底部贴紧面板，整体连成一体 */
    .input-area.emoji-open,
    .private-chat-input-area.emoji-open {
        padding-bottom: 0;
    }
    
    .emoji-panel .yl-emoji-tabs {
        justify-content: center;
    }

    @keyframes slideUp {
        from { transform: translateY(100%); }
        to { transform: translateY(0); }
    }
    
    .emoji-category {
        grid-template-columns: repeat(6, 1fr);
    }
    
    
    .sidebar-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        width: 40px;
        height: 40px;
        background-color: transparent;
        border: none;
        color: #333333;
        font-size: 18px;
        cursor: pointer;
        margin-right: var(--spacing-sm);
        border-radius: 6px;
        transition: background-color var(--transition-fast);
    }

    .sidebar-toggle:hover {
        background-color: #F5F5F5;
    }

    [data-theme="dark"] .sidebar-toggle {
        color: #FFFFFF;
    }

    [data-theme="dark"] .sidebar-toggle:hover {
        background-color: #333333;
    }
    
    
    .online-count-mobile {
        display: inline-block;
        background-color: var(--primary-color);
        color: white;
        font-size: var(--font-size-xs);
        padding: 2px 8px;
        border-radius: 10px;
        margin-left: var(--spacing-xs);
    }
    
    
    .system-info p {
        font-size: var(--font-size-xs);
    }
}
@media (max-width: 479px) {
    .navbar {
        height: var(--mobile-navbar-h);
        padding: env(safe-area-inset-top, 0px) 8px;
    }
    
    .logo-icon {
        width: 28px;
        height: 28px;
    }
    
    .sidebar {
        top: var(--mobile-navbar-h);
        height: calc(100vh - var(--mobile-navbar-h));
        height: calc(100dvh - var(--mobile-navbar-h));
        width: 260px;
    }
    
    .sidebar.left-sidebar {
        left: -260px;
    }
    
    .sidebar.left-sidebar.open {
        transform: translateX(260px);
    }
    
    .sidebar.right-sidebar {
        right: -260px;
    }
    
    .sidebar.right-sidebar.open {
        transform: translateX(-260px);
    }
    
    .message-avatar {
        width: 36px;
        height: 36px;
    }
    
    .message-content {
        max-width: 90%;
    }
    
    .message-text {
        padding: var(--spacing-sm);
        font-size: var(--font-size-sm);
    }
    
    .input-area {
        padding: 8px;
        flex-shrink: 0;
    }
    
    .input-tools {
        margin-bottom: 6px;
        gap: 4px;
    }
    
    .input-tools .btn {
        width: 32px;
        height: 32px;
        font-size: 14px;
    }
    
    #messageInput {
        padding: 8px 12px;
        font-size: 14px;
        min-height: 36px;
    }
    
    .input-container {
        gap: 8px;
    }
    
    .input-container .btn-primary {
        min-width: 40px;
        width: 40px;
        height: 40px;
        padding: 0;
    }
    
    .emoji-category {
        grid-template-columns: repeat(5, 1fr);
    }
    
    .emoji {
        font-size: 20px;
    }
    
    /* 窄屏：隐藏论坛入口 */
    .navbar-right #forumBtn {
        display: none;
    }
    
    /* 窄屏：设置面板全宽 */
    .settings-panel {
        width: 100vw;
        right: -100vw;
    }
    
    /* 窄屏：插件中心底部按钮保持图标在左、文字在右的横排布局 */
    .plugin-center-market-btn,
    .plugin-center-upload-btn,
    .plugin-center-cmd-btn {
        flex-direction: row;
        gap: 4px;
        padding: 8px 4px;
        font-size: 12px;
        min-height: 44px;
    }
    .plugin-center-footer {
        padding: 10px 12px calc(10px + env(safe-area-inset-bottom, 0px));
        gap: 6px;
    }
    .plugin-center-header {
        padding-top: calc(var(--spacing-lg) + env(safe-area-inset-top, 0px));
    }
    .plugin-center-header .btn-icon {
        width: 40px;
        height: 40px;
    }
}
/* 手机端：插件市场全屏页面 */
@media (max-width: 640px) {
    .plugin-market-panel {
        align-items: stretch;
    }
    .plugin-market-content {
        width: 100vw;
        max-width: none;
        height: 100vh;
        height: 100dvh;
        max-height: none;
        border-radius: 0;
        transform: none;
    }
    .plugin-market-panel.open .plugin-market-content {
        transform: none;
    }
    .plugin-market-header {
        padding-top: calc(16px + env(safe-area-inset-top, 0px));
    }
    .plugin-market-upload-btn {
        width: 40px;
        height: 40px;
        padding: 0;
        justify-content: center;
        flex-shrink: 0;
    }
    .plugin-market-doc-btn {
        width: 40px;
        height: 40px;
        padding: 0;
        justify-content: center;
        flex-shrink: 0;
    }
    .plugin-market-doc-btn span {
        display: none;
    }
    .plugin-market-header .btn-icon {
        width: 40px;
        height: 40px;
        padding: 0;
    }
    .plugin-market-footer {
        padding-bottom: calc(8px + env(safe-area-inset-bottom, 0px));
    }
    /* 手机端：AI 开发手册教程弹窗 */
    .plugin-market-upload-modal.plugin-market-ai-doc-modal {
        align-items: flex-end;
    }
    .plugin-market-ai-doc-dialog {
        width: 100vw;
        max-width: none;
        height: 84vh;
        height: 84dvh;
        max-height: 84vh;
        max-height: 84dvh;
        border-radius: 16px 16px 0 0;
        margin: 0;
        transform: translateY(30px);
    }
    .plugin-market-upload-modal.open .plugin-market-ai-doc-dialog {
        transform: translateY(0);
    }
    .plugin-market-ai-doc-dialog .plugin-market-upload-body {
        padding-bottom: calc(18px + env(safe-area-inset-bottom, 0px));
    }
    .plugin-market-ai-doc-prompt {
        max-height: none;
        flex: 1;
    }
    .plugin-market-ai-doc-steps {
        font-size: 12.5px;
    }
}
@media (orientation: landscape) and (max-width: 767px) {
    .sidebar {
        height: calc(100vh - var(--mobile-navbar-h));
        height: calc(100dvh - var(--mobile-navbar-h));
    }
    
    .chat-area {
        height: calc(100vh - var(--mobile-navbar-h));
        height: calc(100dvh - var(--mobile-navbar-h));
    }
    
    .messages {
        max-height: calc(100vh - 180px);
        max-height: calc(100dvh - 180px);
    }
    .plugin-market-ai-doc-dialog {
        height: 94vh;
        height: 94dvh;
        max-height: 94vh;
        max-height: 94dvh;
    }
}
@supports not (height: 1dvh) {
    @media (max-width: 767px) {
        .sidebar {
            height: calc(var(--app-height) - var(--mobile-navbar-h));
        }
    }
    @media (max-width: 479px) {
        .sidebar {
            height: calc(var(--app-height) - var(--mobile-navbar-h));
        }
    }
    @media (max-width: 640px) {
        .plugin-market-content {
            height: var(--app-height);
        }
    }
    @media (orientation: landscape) and (max-width: 767px) {
        .sidebar,
        .chat-area {
            height: calc(var(--app-height) - var(--mobile-navbar-h));
        }
    }
}
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .avatar,
    .message-avatar {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}
@media (hover: none) and (pointer: coarse) {
    .btn:active {
        transform: scale(0.95);
    }
    
    .message-image:active {
        transform: scale(1.05);
    }
    
    .emoji:active {
        transform: scale(1.2);
    }
    .plugin-btn-floating {
        width: 56px !important;
        height: 56px !important;
        min-width: 56px !important;
        min-height: 56px !important;
        padding: 0 !important;
    }
    .plugin-btn-floating i {
        font-size: 24px !important;
    }
    .plugin-btn-toolbar {
        width: 44px !important;
        height: 44px !important;
        min-width: 44px !important;
        min-height: 44px !important;
        padding: 0 !important;
    }
    .plugin-btn-input-toolbar {
        width: 40px !important;
        height: 40px !important;
        min-width: 40px !important;
        min-height: 40px !important;
        padding: 0 !important;
    }
    .lxh-float-card {
        touch-action: none;
    }
    .lxh-float-card-header {
        min-height: 44px !important;
    }
    .plugin-card {
        padding: 12px !important;
    }
    .plugin-card-header {
        gap: 12px !important;
    }
    .plugin-card-icon {
        width: 44px !important;
        height: 44px !important;
    }
    .plugin-card-icon i {
        font-size: 20px !important;
    }
    .plugin-entry-chip {
        padding: 8px 12px !important;
        min-height: 40px !important;
    }
    .plugin-card-toggle {
        width: 50px !important;
        height: 28px !important;
    }
    .plugin-card-toggle::after {
        width: 24px !important;
        height: 24px !important;
    }
    .plugin-card-toggle.on::after {
        transform: translateX(22px);
    }
}
@media print {
    .navbar,
    .sidebar,
    .input-area,
    .modal,
    .settings-panel,
    .emoji-panel {
        display: none !important;
    }
    
    .chat-area {
        height: auto;
        overflow: visible;
    }
    
    .messages {
        height: auto;
        overflow: visible;
        padding: 0;
    }
    
    .message {
        animation: none;
        page-break-inside: avoid;
    }
    
    body {
        background-color: white;
        color: black;
    }
}