/* 会议视觉覆盖层：限定简洁模式，不影响完整模式或服务端上麦权限。 */
:root[data-meeting-ui='simple'] {
    --meeting-header-height: calc(72px + env(safe-area-inset-top));
    --meeting-footer-space: calc(100px + env(safe-area-inset-bottom));
}
.meeting-panel-members-header {
    display: none;
}
/* 简洁会议仅保留未读提醒，不提供收到消息自动弹出聊天的开关。 */
:root[data-meeting-ui='simple'] #chatAutoOpenOption {
    display: none;
}
/* 聊天 / 成员共用弹窗壳，手机贴底，桌面居中。尺寸跟随可视窗口避开键盘。 */
:root[data-meeting-ui='simple'].meeting-mobile-panel-open #chatRoom,
:root[data-meeting-ui='simple'].meeting-mobile-panel-open #chatRoom:has(#chatTogglePin[aria-pressed='true']) {
    position: fixed !important;
    inset: calc(var(--meeting-visible-top, 0px) + var(--meeting-visible-height, 100dvh) / 2) auto auto 50% !important;
    width: min(540px, calc(100vw - 40px)) !important;
    height: min(640px, calc(var(--meeting-visible-height, 100dvh) - 48px)) !important;
    min-width: 0;
    min-height: 0;
    max-width: none;
    max-height: none;
    margin: 0;
    padding: 0 !important;
    border: 0;
    border-radius: 24px;
    background: #f5f7fc;
    box-shadow: 0 20px 80px #182d4c26;
    box-sizing: border-box;
    transform: translate(-50%, -50%) !important;
    animation: none;
    transition: none;
    overflow: hidden;
    z-index: 2010;
}
:root[data-meeting-ui='simple'].meeting-mobile-panel-open #chatApp {
    inset: 0;
    border-radius: 0;
    overflow: hidden;
}
:root[data-meeting-ui='simple'].meeting-mobile-panel-open #chat {
    height: 100%;
    min-width: 0;
    margin-left: 0 !important;
    border-left: 0 !important;
}
:root[data-meeting-ui='simple'].meeting-mobile-panel-open #chatRoom:has(#plist:not(.hidden)) #chat {
    visibility: hidden;
}
/* 页头和输入栏不滚动，消息 / 成员列表单独滚动，关闭按钮始终可见。 */
:root[data-meeting-ui='simple'].meeting-mobile-panel-open #chatRoom .chat-header,
:root[data-meeting-ui='simple'].meeting-mobile-panel-open #plist .meeting-panel-members-header {
    flex: 0 0 64px;
    min-height: 64px;
    height: 64px;
    margin: 0;
    padding: 12px calc(16px + env(safe-area-inset-right)) 12px calc(16px + env(safe-area-inset-left));
    border: 0;
    border-bottom: 1px solid var(--border-subtle);
    border-radius: 0;
    background: #fff;
    box-sizing: border-box;
}
:root[data-meeting-ui='simple'].meeting-mobile-panel-open #plist .meeting-panel-members-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}
:root[data-meeting-ui='simple'].meeting-mobile-panel-open :is(#chatAbout h6, .meeting-panel-members-header h2) {
    font-size: 16px;
    font-weight: 700;
    margin: 0;
    color: var(--fg-1);
}
:root[data-meeting-ui='simple'].meeting-mobile-panel-open :is(#chatCloseButton, #chatHideParticipantsList) {
    flex: 0 0 40px;
    width: 40px;
    height: 40px;
    min-width: 40px;
    padding: 0;
    border: 0;
    border-radius: 12px;
    background: var(--surface-1);
    color: var(--fg-2);
    display: inline-flex;
    justify-content: center;
    align-items: center;
}
:root[data-meeting-ui='simple'].meeting-mobile-panel-open #chatRoom :is(.chat-layout-tools, .chat-menu-tools),
:root[data-meeting-ui='simple'].meeting-mobile-panel-open #chatRoom :is(.chat-toolbar, .chat-text-tool-group) {
    display: none;
}
:root[data-meeting-ui='simple'].meeting-mobile-panel-open #chatHistory {
    flex: 1;
    min-height: 0 !important;
    padding: 16px calc(16px + env(safe-area-inset-right)) 16px calc(16px + env(safe-area-inset-left));
    overflow-y: auto;
    overscroll-behavior: contain;
}
:root[data-meeting-ui='simple'].meeting-mobile-panel-open #chatRoom .chat-message {
    /* 成员页会由上游隐藏输入栏，切回聊天时以当前弹窗布局恢复，避免残留 display:none。 */
    display: block !important;
    flex: 0 0 auto;
    position: relative;
    padding: 12px calc(16px + env(safe-area-inset-right)) calc(12px + env(safe-area-inset-bottom))
        calc(16px + env(safe-area-inset-left));
    background: #fff !important;
    overflow: visible;
}
:root[data-meeting-ui='simple'].meeting-mobile-panel-open #chatMessage {
    font-size: 16px;
}
:root[data-meeting-ui='simple'].meeting-mobile-panel-open #chat > #chatEmoji {
    bottom: calc(86px + env(safe-area-inset-bottom));
    height: min(320px, calc(100% - 170px - env(safe-area-inset-top) - env(safe-area-inset-bottom)));
}
/* 可视窗口高度和顶部偏移随 iOS 软键盘更新，避免输入栏落到键盘下面。 */
:root[data-meeting-ui='simple'].meeting-mobile-panel-open.meeting-keyboard-open #chatRoom .chat-message {
    padding-bottom: 12px;
}
:root[data-meeting-ui='simple'].meeting-mobile-panel-open #plist {
    position: absolute !important;
    inset: 0;
    width: 100% !important;
    height: 100% !important;
    padding: 0;
    background: #f5f7fc;
    border-radius: 0;
    box-sizing: border-box;
}
:root[data-meeting-ui='simple'].meeting-mobile-panel-open #plist .chat-list-actions {
    padding: 12px calc(16px + env(safe-area-inset-right)) 0 calc(16px + env(safe-area-inset-left));
}
:root[data-meeting-ui='simple'].meeting-mobile-panel-open #plist .input-group {
    margin: 0 calc(16px + env(safe-area-inset-right)) 0 calc(16px + env(safe-area-inset-left));
    width: auto;
}
:root[data-meeting-ui='simple'].meeting-mobile-panel-open #plist .chat-conversations-count {
    padding: 0 calc(16px + env(safe-area-inset-right)) 0 calc(16px + env(safe-area-inset-left));
}
:root[data-meeting-ui='simple'].meeting-mobile-panel-open #plist .chat-list {
    padding: 12px calc(12px + env(safe-area-inset-right)) 12px calc(12px + env(safe-area-inset-left));
    overscroll-behavior: contain;
}
:root[data-meeting-ui='simple'].meeting-mobile-panel-open #meetingMembersPagination {
    padding: 12px calc(16px + env(safe-area-inset-right)) calc(12px + env(safe-area-inset-bottom))
        calc(16px + env(safe-area-inset-left));
}
:root[data-meeting-ui='simple'] .meeting-header {
    height: var(--meeting-header-height);
    z-index: 120;
    gap: 24px;
    border-bottom-color: var(--border-subtle);
}
:root[data-meeting-ui='simple'] .meeting-header-brand {
    flex-shrink: 0;
}
:root[data-meeting-ui='simple'] .meeting-header-brand span {
    font-family: inherit;
    font-size: 12px;
}
/* 状态使用正常文档布局，不再悬浮于主画面中央。 */
:root[data-meeting-ui='simple'] .meeting-header .meeting-stage-bar {
    position: static;
    transform: none;
    flex: 1;
    width: auto;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: transparent;
    box-shadow: none;
}
:root[data-meeting-ui='simple'] #meetingStageRole {
    padding: 6px 10px;
    border-radius: 20px;
    background: var(--room-accent-soft);
}
:root[data-meeting-ui='simple'] #meetingStageButton {
    background: var(--surface-1);
    min-height: 38px;
    padding: 8px 14px;
}
:root[data-meeting-ui='simple'] #meetingInviteButton {
    background: var(--room-accent);
    color: #fff;
    border-color: transparent;
    min-height: 38px;
}
:root[data-meeting-ui='simple'] .meeting-stage-panel {
    top: calc(var(--meeting-header-height) + 14px);
    max-height: calc(100dvh - var(--meeting-header-height) - var(--meeting-footer-space) - 28px);
}
:root[data-meeting-ui='simple'].meeting-stage-mode .meeting-audio-prompt {
    top: calc(var(--meeting-header-height) + 10px);
}
:root[data-meeting-ui='simple'] #videoMediaContainer {
    box-sizing: border-box;
    padding: calc(var(--meeting-header-height) + 18px) 18px var(--meeting-footer-space) !important;
}
:root[data-meeting-ui='simple'] #videoPinMediaContainer {
    box-sizing: border-box;
    padding: calc(var(--meeting-header-height) + 18px) 12px var(--meeting-footer-space);
    background: transparent;
    box-shadow: none;
}
:root[data-meeting-ui='simple'] .pinned-video-container {
    border-radius: 18px;
}
.meeting-stage-empty-view {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    color: var(--fg-2);
    pointer-events: none;
}
.meeting-stage-empty-view > i {
    display: grid;
    place-items: center;
    width: 64px;
    height: 64px;
    border-radius: 20px;
    background: var(--room-accent-soft);
    color: var(--room-accent);
    font-size: 24px;
}
.meeting-stage-empty-view p {
    color: var(--fg-3);
    font-size: 12px;
}
/* 位置由同一舞台尺寸计算；固定视频、全屏和手动布局仍走原有实现。 */
:root[data-meeting-ui='simple'] #videoMediaContainer.meeting-stage-layout > .Camera {
    position: absolute;
    margin: 0 !important;
    min-width: 0;
    min-height: 0;
    box-sizing: border-box;
    border-radius: 18px;
    border: 1px solid var(--border-subtle);
    box-shadow: none;
    background: #edf2fa;
}
:root[data-meeting-ui='simple'] .Camera[data-stage-audience='true'] {
    display: none !important;
}
:root[data-meeting-ui='simple'] .Camera[data-stage-speaking='true'] {
    border: 2px solid var(--room-accent) !important;
}
/* 切换入口固定在自己的画面内，随卡片缩放；避开底部姓名，不增加底栏宽度。 */
:root[data-meeting-ui='simple'] .meeting-camera-switch {
    position: absolute;
    z-index: 3;
    top: 8px;
    right: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    width: 68px;
    height: 40px;
    padding: 0;
    border: 1px solid #ffffffb3;
    border-radius: 12px;
    background: #ffffffeb;
    color: #263e63;
    font-size: 17px;
    box-shadow: 0 2px 8px #162c481a;
    cursor: pointer;
    touch-action: manipulation;
}
:root[data-meeting-ui='simple'] .meeting-camera-switch::after {
    content: '切换';
    font-size: 11px;
    line-height: 1.3;
}
/* 视频容器默认把 i 当作举手浮标隐藏，这里的摄像头图标参与按钮的正常排版。 */
:root[data-meeting-ui='simple'] #swapCameraButton.meeting-camera-switch > i {
    position: static;
    display: inline-block;
    width: auto;
    height: auto;
    margin: 0;
    padding: 0;
    background: transparent;
    color: inherit;
    font-size: inherit;
}
:root[data-meeting-ui='simple'] .meeting-camera-switch:focus-visible {
    outline: 2px solid var(--room-accent);
    outline-offset: 2px;
}
/* 真机视频菜单挂在 body 下，不能沿用卡片宽度；保留刘海安全区并避开会议顶栏。 */
:root[data-meeting-ui='simple'] .videoMenuBar.mobile-floating {
    top: calc(var(--meeting-header-height) + 8px);
    left: env(safe-area-inset-left, 0px);
    right: env(safe-area-inset-right, 0px);
    width: auto !important;
    box-sizing: border-box;
}
:root[data-meeting-ui='simple'] .Camera[data-camera-off='true'] .videoAvatarImage {
    width: min(96px, 24%) !important;
    height: auto !important;
    aspect-ratio: 1;
    box-shadow: none;
}
:root[data-meeting-ui='simple'] .Camera .username {
    right: auto;
    left: 12px;
    bottom: 12px;
    background: #ffffffeb;
    border: 0;
    box-shadow: none;
    border-radius: 9px;
    font-size: 12px;
    margin: 0;
}
:root[data-meeting-ui='simple'] .Camera .username .presenter-name-badge {
    color: var(--room-accent) !important;
}
/* 工具栏统一点击区域；离开会议保留独立危险色，避免与设备开关混淆。 */
:root[data-meeting-ui='simple'] #bottomButtons {
    --meeting-tool-width: 48px;
    --meeting-tool-height: 50px;
    gap: 6px;
    padding: 7px;
    border-radius: 18px;
    border-color: var(--border-subtle);
    box-shadow: 0 6px 22px #2439570a;
}
:root[data-meeting-ui='simple'] #bottomButtons > button,
:root[data-meeting-ui='simple'] #bottomButtons .split-btn,
:root[data-meeting-ui='simple'] #bottomButtons #participantViewButton {
    background: var(--surface-1);
}
:root[data-meeting-ui='simple'] #bottomButtons button.is-active {
    background: var(--room-accent-soft);
    color: var(--room-accent) !important;
}
:root[data-meeting-ui='simple'] #bottomButtons :is(#startAudioButton, #startVideoButton) {
    color: var(--fg-2) !important;
}
:root[data-meeting-ui='simple'] #bottomButtons #exitButton {
    margin-left: 8px;
    background: #fff0f2;
    color: #cf4c5c !important;
}
:root[data-meeting-ui='simple'] #bottomButtons #exitButton::after {
    color: #cf4c5c;
}
/* 固定聊天保留真实内容高度，不依赖旧主题的 430px 最小值。 */
:root[data-meeting-ui='simple'] #chatRoom {
    border-radius: 18px;
    box-shadow: 0 6px 22px #2439570a;
}
:root[data-meeting-ui='simple'] #chatRoom:has(#chatTogglePin[aria-pressed='true']) {
    top: calc(var(--meeting-header-height) + 12px) !important;
    height: calc(100dvh - var(--meeting-header-height) - var(--meeting-footer-space) + 2px) !important;
    max-height: none;
}
:root[data-meeting-ui='simple'] #chatApp {
    width: 100%;
    height: 100%;
    overflow: hidden;
}
:root[data-meeting-ui='simple'] #chatHistory {
    min-height: 0 !important;
    padding: 16px;
    overscroll-behavior: contain;
}
:root[data-meeting-ui='simple'] #chatRoom .chat-header {
    padding: 12px 8px;
    margin: 0 8px;
    border: 0;
    border-bottom: 1px solid var(--border-subtle);
    border-radius: 0;
    background: transparent;
}
:root[data-meeting-ui='simple'] #chatAbout img {
    display: none;
}
/* 小缩略图改为横向头像与姓名，避免聊天打开后头像和姓名互相遮挡。 */
:root[data-meeting-ui='simple'] .Camera[data-stage-compact='true'] .videoAvatarImage {
    width: 32px !important;
    left: 14px;
    transform: translateY(-50%);
}
:root[data-meeting-ui='simple'] .Camera[data-stage-compact='true'] .username {
    left: 54px;
    top: 50%;
    bottom: auto;
    transform: translateY(-50%);
    background: transparent;
    padding: 0;
    max-width: calc(100% - 68px);
    min-height: 0;
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
:root[data-meeting-ui='simple'] #chatRoom .chat-message {
    overflow: visible;
    padding: 12px;
    border-top: 1px solid var(--border-subtle);
}
:root[data-meeting-ui='simple'] #chatRoom .chat-toolbar-hint {
    display: none;
}
:root[data-meeting-ui='simple'] #chatRoom .chat-toolbar {
    margin-top: 8px;
}
:root[data-meeting-ui='simple'] #chatRoom .chat-text-tool-group {
    background: transparent;
    border: 0;
}
:root[data-meeting-ui='simple'] #chatRoom .chat-input-container {
    align-items: center;
    padding: 6px;
    min-height: 46px;
}
:root[data-meeting-ui='simple'] #chatRoom .chat-send-btn {
    width: 32px;
    height: 32px;
    min-width: 32px;
    padding: 0;
    border-radius: 9px;
    color: #fff !important;
    background: var(--room-accent);
}
:root[data-meeting-ui='simple'] #chatRoom .chat-send-btn i {
    color: inherit;
}
:root[data-meeting-ui='simple'] #chatEmoji {
    bottom: 120px;
}
/* 更多菜单使用原生 details：无需依赖悬停，触屏和键盘都能展开操作。 */
#chatRoom .message-actions {
    position: absolute;
    top: 2px;
    right: -34px;
    z-index: 2;
}
#chatRoom .my-message .message-actions {
    right: auto;
    left: -34px;
}
#chatRoom .message-actions > summary {
    list-style: none;
    display: grid;
    place-items: center;
    width: 28px;
    height: 30px;
    border-radius: 8px;
    color: var(--fg-2);
    cursor: pointer;
}
#chatRoom .message-actions > summary::-webkit-details-marker {
    display: none;
}
#chatRoom .message-actions > summary:focus-visible {
    outline: 2px solid var(--room-accent);
}
#chatRoom .message-actions[open] {
    z-index: 8;
}
#chatRoom .message-actions .about-buttons {
    position: absolute;
    top: 34px;
    right: 0;
    padding: 6px;
    flex-wrap: nowrap;
    border: 1px solid var(--border-strong);
    border-radius: 10px;
    background: var(--settings-bg);
    box-shadow: 0 4px 16px #24395712;
    margin: 0;
}
#chatRoom .my-message .message-actions .about-buttons {
    right: auto;
    left: 0;
}
#chatRoom .message-actions-up .about-buttons {
    top: auto;
    bottom: 34px;
}
#chatRoom .chat-history .message:has(.message-actions) {
    max-width: calc(100% - 36px);
}
@media (hover: hover) and (pointer: fine) {
    #chatRoom .message-actions:not([open]) > summary {
        opacity: 0;
    }
    #chatRoom li:hover .message-actions > summary,
    #chatRoom .message-actions:focus-within > summary {
        opacity: 1;
    }
}
@media (max-width: 730px) {
    :root[data-meeting-ui='simple'] {
        --meeting-header-height: calc(100px + env(safe-area-inset-top));
        --meeting-footer-space: calc(88px + env(safe-area-inset-bottom));
    }
    :root[data-meeting-ui='simple'] .meeting-header {
        display: grid;
        grid-template-columns: minmax(0, 1fr) auto;
        gap: 6px 12px;
        padding: calc(10px + env(safe-area-inset-top)) 16px 10px;
    }
    :root[data-meeting-ui='simple'] .meeting-header-brand {
        min-width: 0;
    }
    :root[data-meeting-ui='simple'] #meetingInviteButton {
        grid-column: 2;
        grid-row: 1;
        padding: 8px 10px;
    }
    :root[data-meeting-ui='simple'] .meeting-header .meeting-stage-bar {
        grid-column: 1 / -1;
        grid-row: 2;
        min-width: 0;
        gap: 6px;
    }
    :root[data-meeting-ui='simple'] .meeting-stage-bar > div {
        flex-direction: row;
        align-items: center;
        gap: 8px;
    }
    :root[data-meeting-ui='simple'] #meetingStageRole {
        font-size: 11px;
        padding: 4px 8px;
    }
    :root[data-meeting-ui='simple'] #meetingStageSummary {
        font-size: 11px;
    }
    :root[data-meeting-ui='simple'] #meetingStageButton {
        padding: 5px 8px;
        min-height: 30px;
        font-size: 11px;
    }
    /* 观众可随时申请上麦；禁用的采集按钮不占工具栏，权限仍由服务端校验。 */
    :root[data-meeting-ui='simple'][data-meeting-role='audience'] {
        --meeting-footer-space: calc(144px + env(safe-area-inset-bottom));
    }
    :root[data-meeting-ui='simple'][data-meeting-role='audience'] #meetingStageButton {
        position: fixed;
        bottom: calc(86px + env(safe-area-inset-bottom));
        left: 16px;
        right: 16px;
        width: calc(100% - 32px);
        height: 42px;
        background: var(--room-accent);
        color: #fff;
        border: 0;
        border-radius: 12px;
        font-size: 14px;
    }
    :root[data-meeting-ui='simple'][data-meeting-role='audience']
        #bottomButtons
        :is(#startAudioButton, #startVideoButton, #startScreenButton) {
        display: none !important;
    }
    :root[data-meeting-ui='simple'] #bottomButtons {
        --meeting-tool-width: clamp(30px, calc((100vw - 64px) / 10), 42px);
        --meeting-tool-height: 44px;
        gap: 3px;
        padding: 6px;
    }
    :root[data-meeting-ui='simple'][data-meeting-role='audience'] #bottomButtons {
        --meeting-tool-width: clamp(34px, calc((100vw - 98px) / 6), 44px);
        gap: 6px;
    }
    :root[data-meeting-ui='simple'] #videoMediaContainer {
        padding: calc(var(--meeting-header-height) + 12px) 12px var(--meeting-footer-space) !important;
        height: var(--meeting-visible-height, 100dvh) !important;
    }
    :root[data-meeting-ui='simple'] #chatRoom .chat-header {
        min-height: 44px;
        padding: 5px 0;
    }
    :root[data-meeting-ui='simple'] #chatRoom .chat-about h6 {
        font-size: 13px;
    }
    :root[data-meeting-ui='simple'] #chatRoom .chat-toolbar {
        margin-top: 3px;
    }
    :root[data-meeting-ui='simple'] #chatRoom .chat-message {
        padding: 6px 8px;
    }
    :root[data-meeting-ui='simple'] #chatRoom .chat-history {
        padding: 10px;
    }
    /* 空消息提示参与聊天区布局，避免原有居中插图跨出小面板、遮住输入框。 */
    :root[data-meeting-ui='simple'] #chatEmptyNotice {
        position: static;
        transform: none;
        width: 100%;
        padding: 12px 4px;
        gap: 4px;
    }
    :root[data-meeting-ui='simple'] #chatEmptyNotice .empty-chat-img {
        display: none;
    }
    :root[data-meeting-ui='simple'] #chatEmptyNotice h5 {
        margin: 0;
        font-size: 13px;
    }
    :root[data-meeting-ui='simple'] #chatEmptyNotice p {
        font-size: 12px;
    }
    :root[data-meeting-ui='simple'] #chat > #chatEmoji {
        bottom: 90px;
        height: min(230px, calc(100% - 100px));
    }
    #chatRoom .message-actions > summary {
        opacity: 1;
    }
}
/* 窄屏上麦后会显示全部工具：预留两个下拉箭头的宽度，避免离开按钮换行遮住聊天。 */
@media (max-width: 360px) {
    :root[data-meeting-ui='simple'] #bottomButtons {
        --meeting-tool-width: clamp(24px, calc((100vw - 96px) / 9), 30px);
        gap: 2px;
    }
    :root[data-meeting-ui='simple'] #bottomButtons #exitButton {
        margin-left: 4px;
    }
}
/* 桌面端采用草图中的整条底栏：状态在左、常用操作居中、离开在右。 */
:root[data-meeting-ui='simple'] #bottomButtons {
    --meeting-tool-width: 58px;
    --meeting-tool-height: 58px;
    left: 0;
    right: 0;
    top: auto;
    bottom: 0;
    width: 100%;
    max-width: none;
    height: calc(88px + env(safe-area-inset-bottom));
    margin: 0;
    padding: 14px max(24px, env(safe-area-inset-right)) calc(14px + env(safe-area-inset-bottom))
        max(24px, env(safe-area-inset-left));
    transform: none;
    flex-direction: row;
    flex-wrap: nowrap;
    gap: 12px;
    border-radius: 0;
    background: #fff;
    box-shadow: 0 -1px 0 var(--border-subtle);
    box-sizing: border-box;
}
:root[data-meeting-ui='simple'] #bottomButtons > button,
:root[data-meeting-ui='simple'] #bottomButtons .split-btn > button:not(.device-dropdown-toggle),
:root[data-meeting-ui='simple'] #participantViewButton {
    border-radius: 14px;
    color: var(--fg-2) !important;
}
:root[data-meeting-ui='simple'] #bottomButtons button.is-active {
    color: var(--room-accent) !important;
}
:root[data-meeting-ui='simple'] #bottomButtons :is(#participantsActionsDropdown, #settingsExtraDropdown) {
    display: none !important;
}
:root[data-meeting-ui='simple'] #bottomButtons :is(#startAudioButton, #startVideoButton) i {
    color: inherit !important;
}
:root[data-meeting-ui='simple'] #bottomButtons :is(#stopAudioButton, #stopVideoButton) {
    color: var(--room-accent) !important;
}
.meeting-toolbar-status {
    position: absolute;
    left: 24px;
    font-size: 12px;
    color: var(--fg-3);
}
.meeting-toolbar-status::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #4bbb8c;
    margin-right: 8px;
}
:root[data-meeting-ui='simple'] #bottomButtons #exitDropdown {
    position: absolute;
    right: max(24px, env(safe-area-inset-right));
}
:root[data-meeting-ui='simple'] #bottomButtons #exitButton {
    width: 112px;
    margin: 0;
    flex-direction: row;
    gap: 8px;
    border-radius: 14px;
    background: #fff0f2 !important;
}
:root[data-meeting-ui='simple'] #bottomButtons #exitButton::after {
    content: '离开会议';
    margin: 0;
    font-size: 13px;
}
#meetingMobileMoreButton,
#meetingMobileTools:not([open]) {
    display: none !important;
}

@media (min-width: 731px) and (max-width: 1100px) {
    .meeting-toolbar-status {
        display: none;
    }
    :root[data-meeting-ui='simple'] #bottomButtons {
        --meeting-tool-width: 48px;
        justify-content: flex-start;
        gap: 6px;
    }
    :root[data-meeting-ui='simple'] #bottomButtons :is(#startAudioDeviceDropdown, #startVideoDeviceDropdown) {
        display: none !important;
    }
}

@media (max-width: 730px) {
    :root[data-meeting-ui='simple'] {
        --meeting-footer-space: calc(76px + env(safe-area-inset-bottom));
    }
    :root[data-meeting-ui='simple'][data-meeting-role='audience'] {
        --meeting-footer-space: calc(132px + env(safe-area-inset-bottom));
    }
    :root[data-meeting-ui='simple'] #bottomButtons {
        /* 六个入口扣除左右安全区、内边距和间距，iPhone 横竖屏都不挤掉离开按钮。 */
        --meeting-tool-width: clamp(
            36px,
            calc((100vw - 64px - env(safe-area-inset-left) - env(safe-area-inset-right)) / 6),
            60px
        );
        --meeting-tool-height: 50px;
        height: calc(72px + env(safe-area-inset-bottom));
        padding: 10px calc(12px + env(safe-area-inset-right)) calc(12px + env(safe-area-inset-bottom))
            calc(12px + env(safe-area-inset-left));
        gap: 6px;
        justify-content: space-around;
        z-index: 130;
    }
    :root[data-meeting-ui='simple'][data-meeting-role='audience'] #bottomButtons {
        --meeting-tool-width: 60px;
        gap: 6px;
    }
    :root[data-meeting-ui='simple'] #bottomButtons > :is(button, .split-btn),
    :root[data-meeting-ui='simple'] #bottomButtons > .split-btn > button {
        background: transparent;
        border-radius: 12px;
    }
    :root[data-meeting-ui='simple'] #bottomButtons > .split-btn > button::after,
    :root[data-meeting-ui='simple'] #bottomButtons > button::after,
    :root[data-meeting-ui='simple'] #bottomButtons #exitButton::after {
        font-size: 10px;
    }
    :root[data-meeting-ui='simple'][data-meeting-role='audience']
        #bottomButtons
        > :is(#startAudioSplit, #startVideoSplit),
    .meeting-toolbar-status {
        display: none !important;
    }
    :root[data-meeting-ui='simple'] #bottomButtons #exitDropdown {
        position: relative;
        right: auto;
        flex-shrink: 0;
    }
    :root[data-meeting-ui='simple'] #bottomButtons #exitButton {
        width: var(--meeting-tool-width);
        min-width: var(--meeting-tool-width);
        height: 50px;
        flex-direction: column;
        gap: 0;
        background: transparent !important;
    }
    :root[data-meeting-ui='simple'] #bottomButtons #exitButton::after {
        content: '离开';
        margin-top: 4px;
    }
    :root[data-meeting-ui='simple'] #meetingMobileMoreButton {
        display: flex !important;
        flex-direction: column;
        gap: 4px;
        font-size: 18px;
    }
    #meetingMobileMoreButton span {
        font-size: 10px;
    }
    :root[data-meeting-ui='simple'][data-meeting-role='audience'] #meetingStageButton {
        bottom: calc(82px + env(safe-area-inset-bottom));
    }
    :root[data-meeting-ui='simple'] #chatRoom .chat-text-tool-group {
        display: none;
    }
    :root[data-meeting-ui='simple'] #chatRoom .chat-toolbar {
        display: none;
    }
    :root[data-meeting-ui='simple'] #chatRoom .chat-message {
        padding: 10px;
    }
    :root[data-meeting-ui='simple'] #chatRoom .chat-header [aria-label='面板布局'] {
        display: none;
    }
    /* 原生 dialog 提供焦点约束和返回键关闭，背景会议保持原状态。 */
    #meetingMobileTools[open] {
        position: fixed;
        inset: auto 0 0;
        width: 100%;
        max-width: none;
        max-height: min(70dvh, 520px);
        margin: 0;
        padding: 22px calc(20px + env(safe-area-inset-right)) calc(24px + env(safe-area-inset-bottom))
            calc(20px + env(safe-area-inset-left));
        border: 0;
        border-radius: 24px 24px 0 0;
        background: #fff;
        color: var(--fg-1);
        box-sizing: border-box;
        overflow-y: auto;
    }
    #meetingMobileTools::backdrop {
        background: #1d2d4659;
        backdrop-filter: blur(3px);
    }
    #meetingMobileTools header {
        display: flex;
        justify-content: space-between;
        margin-bottom: 22px;
        gap: 16px;
        align-items: flex-start;
    }
    #meetingMobileTools h2 {
        font-size: 18px;
        margin: 0 0 6px;
        color: var(--fg-1);
        outline: none;
    }
    #meetingMobileTools p {
        font-size: 12px;
        color: var(--fg-3);
        margin: 0;
    }
    #bottomButtons #meetingMobileTools header button {
        width: 44px;
        min-width: 44px;
        height: 44px;
        min-height: 44px;
        flex: 0 0 44px;
        padding: 0;
        border-radius: 12px;
        background: var(--surface-1);
        color: var(--fg-2) !important;
    }
    .meeting-mobile-tools-grid {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 12px;
    }
    #bottomButtons #meetingMobileTools .meeting-mobile-tools-grid > :is(button, div) {
        width: 100%;
        min-width: 0;
        height: auto;
        padding: 0;
    }
    /* 布局入口虽带 dropdown-toggle 类名，也使用统一卡片；设备下拉箭头仍隐藏。 */
    #bottomButtons #meetingMobileTools .meeting-mobile-tools-grid button:not(.device-dropdown-toggle) {
        width: 100%;
        min-width: 0;
        height: 92px;
        min-height: 92px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        border-radius: 16px;
        background: var(--surface-1);
        color: var(--fg-2) !important;
        font-size: 22px;
    }
    #bottomButtons #meetingMobileTools .meeting-mobile-tools-grid button::after {
        font-size: 12px;
        margin-top: 10px;
    }
    #bottomButtons #meetingMobileTools #videoPiPButton span {
        margin-top: 10px;
        font-size: 12px;
    }
    #bottomButtons #meetingMobileTools #participantViewMenu {
        position: fixed !important;
        inset: 12px 12px auto !important;
        max-height: calc(100dvh - 24px);
        overflow: auto;
        transform: none !important;
    }
    #bottomButtons #meetingMobileTools #participantViewMenu button {
        height: 44px;
        font-size: 14px;
        display: flex;
        flex-direction: row;
        align-items: center;
        gap: 12px;
    }
    /* 手机设置使用整屏页和可见分类，无需先打开抽屉找入口。 */
    :root[data-meeting-ui='simple'] #mySettings {
        inset: 0 !important;
        transform: none !important;
        width: 100% !important;
        max-width: none;
        height: var(--meeting-visible-height, 100dvh) !important;
        max-height: none;
        margin: 0;
        border: 0;
        border-radius: 0;
        background: #f5f7fc;
        backdrop-filter: none;
    }
    :root[data-meeting-ui='simple'] #mySettingsHeader {
        flex-basis: calc(64px + env(safe-area-inset-top));
        height: calc(64px + env(safe-area-inset-top));
        padding: calc(12px + env(safe-area-inset-top)) 20px 12px;
        background: #fff;
        border: 0;
    }
    :root[data-meeting-ui='simple'] #mySettingsNavToggleBtn,
    :root[data-meeting-ui='simple'] #mySettingsNavBackdrop,
    :root[data-meeting-ui='simple'] #mySettingsNav .settings-nav-label {
        display: none !important;
    }
    :root[data-meeting-ui='simple'] #mySettings .mySettingsMain {
        display: flex;
        flex-direction: column;
        height: auto;
        padding: 0;
    }
    :root[data-meeting-ui='simple'] #mySettings #mySettingsNav {
        position: static;
        flex: 0 0 auto;
        display: flex;
        flex-direction: row;
        align-items: center;
        width: 100%;
        height: 62px;
        padding: 8px 16px 14px;
        gap: 8px;
        border: 0;
        border-radius: 0;
        box-shadow: none;
        overflow-x: auto;
        overflow-y: hidden;
        transform: none;
        background: #fff;
        scrollbar-width: none;
    }
    :root[data-meeting-ui='simple'] #mySettings #mySettingsNav button {
        flex: 0 0 auto;
        width: auto;
        min-width: 68px;
        height: 40px;
        margin: 0;
        padding: 0 12px;
        border: 0;
        border-radius: 12px;
        background: #f4f6fa;
        box-shadow: none;
    }
    :root[data-meeting-ui='simple'] #mySettings #mySettingsNav button.active {
        background: var(--room-accent-soft);
    }
    :root[data-meeting-ui='simple'] #mySettings .tabActions {
        flex: 1;
        min-height: 0;
        margin: 0;
        padding: 16px 16px calc(24px + env(safe-area-inset-bottom));
        border: 0;
        border-radius: 0;
        background: transparent;
        overflow-y: auto;
        visibility: visible;
    }
    :root[data-meeting-ui='simple'] #mySettings .tabcontent {
        padding: 0;
    }
    :root[data-meeting-ui='simple'] #mySettings .settings-section-intro {
        padding: 0 2px 12px;
        margin: 0;
        border: 0;
        background: transparent;
        box-shadow: none;
    }
    :root[data-meeting-ui='simple'] #mySettings .settings-section-intro h3 {
        font-size: 18px;
    }
    :root[data-meeting-ui='simple'] #mySettings .settings-section-intro p {
        font-size: 12px;
        line-height: 1.6;
    }
    :root[data-meeting-ui='simple'] #mySettings :is(select, input:not([type='checkbox'], [type='range'])) {
        min-height: 46px;
        border-radius: 12px;
        background-color: #fff !important;
        border-color: var(--border-subtle);
        font-size: 16px;
    }
    :root[data-meeting-ui='simple'] #mySettings .tabcontent > select {
        width: 100% !important;
        max-width: none;
    }
    :root[data-meeting-ui='simple'] #mySettings .tabcontent > br {
        display: none;
    }
    :root[data-meeting-ui='simple'] #mySettings #tabAudioDevices > .title {
        margin: 20px 0 10px;
        font-size: 13px;
    }
    :root[data-meeting-ui='simple'] #mySettings .volume-container {
        margin: 16px 0;
    }
    :root[data-meeting-ui='simple'] #mySettings .output-volume-value {
        color: var(--fg-2);
    }
    :root[data-meeting-ui='simple'] #mySettings .settingsTable {
        background: #fff;
        border-radius: 16px;
        overflow: hidden;
    }
    :root[data-meeting-ui='simple'] #mySettings .settingsTable td {
        padding: 14px 12px;
    }
    :root[data-meeting-ui='simple'] #mySettings .room-action-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    :root[data-meeting-ui='simple'] #mySettings .room-action-card {
        border-radius: 14px;
        background: #fff;
    }
    :root[data-meeting-ui='simple'] #mySettings hr {
        display: none;
    }
}

/* 左下角独立聊天入口，保留原按钮、事件和未读数量。 */
:root[data-meeting-ui='simple'] {
    --meeting-footer-space: calc(156px + env(safe-area-inset-bottom));
}
:root[data-meeting-ui='simple'] #meetingChatDock {
    position: fixed;
    left: calc(18px + env(safe-area-inset-left));
    bottom: calc(100px + env(safe-area-inset-bottom));
    z-index: 125;
}
:root[data-meeting-ui='simple'] #meetingChatDock #chatButton {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-width: 152px;
    height: 42px;
    padding: 0 16px;
    border: 1px solid var(--border-subtle);
    border-radius: 24px;
    background: #fff;
    color: var(--fg-2);
    box-shadow: 0 4px 16px #2439570a;
    font-size: 14px;
    cursor: pointer;
}
:root[data-meeting-ui='simple'] #meetingChatDock #chatButton::after {
    content: none;
}
:root[data-meeting-ui='simple'] #meetingChatDock #chatButton > i {
    color: var(--room-accent);
    font-size: 17px;
}
:root[data-meeting-ui='simple'] #meetingChatDock #chatUnreadBadge {
    position: static;
    transform: none;
    margin-left: 2px;
}
:root[data-meeting-ui='simple'] #meetingPanelBackdrop:not([hidden]) {
    position: fixed;
    inset: 0;
    z-index: 2005;
    background: #1c2b4540;
    backdrop-filter: blur(3px);
    touch-action: none;
}
:root[data-meeting-ui='simple'].meeting-mobile-panel-open #chatHeader {
    cursor: default;
    box-shadow: none;
}
:root[data-meeting-ui='simple'].meeting-mobile-panel-open #chatEmptyNotice .empty-chat-img {
    display: none;
}
:root[data-meeting-ui='simple'].meeting-mobile-panel-open #chatEmptyNotice {
    padding: 32px 20px;
}
:root[data-meeting-ui='simple'].meeting-mobile-panel-open #chatRoom[data-panel-view='members'] #chat {
    display: none;
}
:root[data-meeting-ui='simple'] .Camera[data-stage-audience='false'] .videoAvatarImage {
    max-width: 30%;
    max-height: 38%;
    object-fit: contain;
}
@media (max-width: 730px) {
    :root[data-meeting-ui='simple'],
    :root[data-meeting-ui='simple'][data-meeting-role='audience'] {
        --meeting-footer-space: calc(132px + env(safe-area-inset-bottom));
    }
    :root[data-meeting-ui='simple'] #meetingChatDock {
        left: calc(12px + env(safe-area-inset-left));
        bottom: calc(82px + env(safe-area-inset-bottom));
    }
    :root[data-meeting-ui='simple'][data-meeting-role='audience'] #meetingStageButton {
        left: auto;
        right: calc(12px + env(safe-area-inset-right));
        bottom: calc(82px + env(safe-area-inset-bottom));
        width: auto;
        max-width: calc(100vw - 198px - env(safe-area-inset-left) - env(safe-area-inset-right));
        padding: 0 14px;
        font-size: 12px;
    }
    :root[data-meeting-ui='simple'].meeting-mobile-panel-open #chatRoom,
    :root[data-meeting-ui='simple'].meeting-mobile-panel-open #chatRoom:has(#chatTogglePin[aria-pressed='true']) {
        inset: calc(var(--meeting-visible-top, 0px) + var(--meeting-visible-height, 100dvh)) 0 auto !important;
        width: 100% !important;
        height: min(620px, calc(var(--meeting-visible-height, 100dvh) * 0.76)) !important;
        transform: translateY(-100%) !important;
        border-radius: 24px 24px 0 0;
        padding-top: 12px !important;
    }
    :root[data-meeting-ui='simple'].meeting-mobile-panel-open #chatRoom::before {
        content: '';
        position: absolute;
        top: 6px;
        left: calc(50% - 18px);
        width: 36px;
        height: 4px;
        border-radius: 4px;
        background: #cbd4e1;
        z-index: 10;
    }
    :root[data-meeting-ui='simple'].meeting-mobile-panel-open #chatApp {
        top: 12px;
        height: calc(100% - 12px);
    }
    :root[data-meeting-ui='simple'].meeting-mobile-panel-open.meeting-keyboard-open #chatRoom {
        height: calc(var(--meeting-visible-height, 100dvh) - 12px) !important;
    }
}
@media (max-height: 500px) {
    :root[data-meeting-ui='simple'].meeting-mobile-panel-open #chatRoom,
    :root[data-meeting-ui='simple'].meeting-mobile-panel-open #chatRoom:has(#chatTogglePin[aria-pressed='true']) {
        height: calc(var(--meeting-visible-height, 100dvh) - 16px) !important;
    }
}

/* 成员操作菜单沿用 body 门户，必须位于弹窗上方，确认框仍在更高层。 */
:root[data-meeting-ui='simple'].meeting-mobile-panel-open body > .participant-list-dropdown-menu {
    z-index: 2020 !important;
}