/* AI 对话轻量操作：单条图标操作 + 右上角全局导出。 */
.ai-chat-container.chat-actions-enabled {
    position: relative;
}

.ai-chat-container.chat-actions-enabled > .chat-box {
    padding-top: 56px !important;
}

.ai-chat-export-toolbar {
    position: absolute;
    z-index: 20;
    top: 12px;
    right: 16px;
    display: flex;
    align-items: center;
    pointer-events: none;
}

.ai-chat-export-toolbar button {
    font-family: inherit;
}

.ai-chat-export-toolbar .export-toolbar-primary,
.ai-chat-export-toolbar .export-toolbar-selection {
    pointer-events: auto;
}

.ai-chat-export-toolbar .export-toolbar-primary {
    position: relative;
}

.ai-chat-export-toolbar .export-toolbar-selection {
    display: none;
}

.ai-chat-export-toolbar.is-selecting {
    right: 50%;
    transform: translateX(50%);
}

.ai-chat-export-toolbar.is-selecting .export-toolbar-primary {
    display: none;
}

.ai-chat-export-toolbar.is-selecting .export-toolbar-selection {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 6px 5px 12px;
    border: 1px solid rgba(16, 24, 40, 0.08);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 6px 22px rgba(16, 24, 40, 0.12);
    white-space: nowrap;
}

.ai-chat-export-toolbar .more-export-actions {
    min-width: 96px;
    height: 32px;
    padding: 0 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    border: 1px solid #e3e8ef;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.94);
    box-shadow: 0 2px 8px rgba(16, 24, 40, 0.06);
    color: #475467;
    font-size: 13px;
    cursor: pointer;
}

.ai-chat-export-toolbar .more-export-actions:hover,
.ai-chat-export-toolbar.is-menu-open .more-export-actions {
    border-color: #cbd5df;
    background: #f9fafb;
    color: #101828;
}

.ai-chat-export-toolbar .more-export-actions:disabled {
    border-color: #eaecf0;
    background: #f9fafb;
    color: #c3c9d0;
    box-shadow: none;
    cursor: not-allowed;
}

.ai-chat-export-toolbar .export-icon {
    width: 16px;
    height: 16px;
    display: block;
    flex: 0 0 auto;
}

.ai-chat-export-toolbar .export-format-menu {
    display: none;
    position: absolute;
    top: 38px;
    right: 0;
    width: 148px;
    padding: 5px;
    border: 1px solid rgba(16, 24, 40, 0.08);
    border-radius: 10px;
    background: #fff;
    box-shadow: 0 10px 28px rgba(16, 24, 40, 0.14);
}

.ai-chat-export-toolbar.is-menu-open .export-format-menu {
    display: block;
}

.ai-chat-export-toolbar .export-format-menu button {
    width: 100%;
    height: 34px;
    padding: 0 10px;
    border: 0;
    border-radius: 6px;
    background: transparent;
    color: #344054;
    font-size: 13px;
    text-align: left;
    cursor: pointer;
}

.ai-chat-export-toolbar .export-format-menu button:hover {
    background: #f2f4f7;
    color: #101828;
}

.ai-chat-export-toolbar .selection-count {
    margin-right: 3px;
    color: #344054;
    font-size: 13px;
}

.ai-chat-export-toolbar .export-toolbar-selection button {
    height: 28px;
    padding: 0 9px;
    border: 0;
    border-radius: 7px;
    background: transparent;
    color: #667085;
    font-size: 12px;
    cursor: pointer;
}

.ai-chat-export-toolbar .export-toolbar-selection button:hover {
    background: #f2f4f7;
    color: #101828;
}

.ai-chat-export-toolbar .export-toolbar-selection button:disabled {
    background: transparent;
    color: #c3c9d0;
    cursor: not-allowed;
}

.ai-chat-export-toolbar .download-selected {
    background: #0094e7 !important;
    color: #fff !important;
}

.ai-chat-export-toolbar .download-selected:hover {
    background: #0081c8 !important;
}

.ai-chat-export-toolbar .download-selected:disabled {
    background: #d0d5dd !important;
    cursor: not-allowed;
}

.ai-chat-container .message {
    position: relative;
}

.ai-chat-container .message-body {
    max-width: 70%;
    min-width: 0;
}

.J-comparison .ai-chat-container .message-body {
    max-width: 90%;
}

.ai-chat-container .message-body > .message-content {
    max-width: 100% !important;
    box-sizing: border-box;
}

/* 与导出文档保持一致，明确展示 Markdown 的分隔线。 */
.ai-chat-container .message-content .content hr,
.ai-chat-container .message-content .reasoning-content hr {
    display: block;
    height: 0;
    margin: 14px 0;
    padding: 0;
    border: 0;
    border-top: 1px solid #cfd6dd;
}

.ai-chat-container .message.user .message-content .content hr {
    border-top-color: rgba(255, 255, 255, 0.5);
}

.ai-chat-container .message-select {
    display: none;
    position: absolute;
    top: 10px;
    left: 0;
    width: 16px;
    height: 16px;
    margin: 0;
    accent-color: #0094e7;
    cursor: pointer;
}

.ai-chat-container .chat-box.is-selecting .message-select {
    display: block;
}

.ai-chat-container .chat-box.is-selecting .message {
    padding-left: 27px;
}

.ai-chat-container .message-select:checked ~ .message-body .message-content {
    box-shadow: 0 0 0 2px rgba(0, 148, 231, 0.22);
}

.ai-chat-container .message-select:disabled {
    cursor: not-allowed;
    opacity: 0.35;
}

.ai-chat-container .message-actions {
    height: 26px;
    margin-top: 3px;
    display: flex;
    align-items: center;
}

/* AI 输出完成前不展示复制操作，三个聊天页面保持一致。 */
.ai-chat-container.is-ai-busy .message-actions {
    display: none;
}

.ai-chat-container .message.user .message-actions {
    justify-content: flex-end;
}

.ai-chat-container .message-copy {
    min-width: 28px;
    height: 26px;
    padding: 0 6px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
    border: 0;
    border-radius: 6px;
    background: transparent;
    color: #667085;
    font-size: 12px;
    cursor: pointer;
    opacity: 0.64;
}

.ai-chat-container .message-copy:hover {
    background: #f2f4f7;
    opacity: 1;
}

.ai-chat-container .message-copy img {
    width: 14px;
    height: 14px;
    display: block;
}

.ai-chat-container .message-copy .copy-feedback {
    display: none;
}

.ai-chat-container .message-copy.is-copied,
.ai-chat-container .message-copy.is-failed {
    width: auto;
    opacity: 1;
}

.ai-chat-container .message-copy.is-copied .copy-feedback,
.ai-chat-container .message-copy.is-failed .copy-feedback {
    display: inline;
}

.ai-chat-container .message-copy.is-copied {
    color: #039855;
}

.ai-chat-container .message-copy.is-failed {
    color: #d92d20;
}

@media (max-width: 640px) {
    .ai-chat-export-toolbar.is-selecting {
        right: 8px;
        left: 8px;
        transform: none;
    }

    .ai-chat-export-toolbar.is-selecting .export-toolbar-selection {
        width: 100%;
        justify-content: center;
    }
}