/* AI 制作页共用 AI GGB 的深色工作台；仅作用于带专用类名的三个制作页。 */
body.ai-workbench-page {
    --wb-bg: #0f0f0f;
    --wb-panel: #1a1a1a;
    --wb-input: #242424;
    --wb-hover: #2a2a2a;
    --wb-border: #333;
    --wb-text: #f0f0f0;
    --wb-muted: #a0a0a0;
    --wb-accent: #6366f1;
    --wb-popup: #1e1e2e;
    --wb-selected: rgba(99, 102, 241, .18);
    --wb-control-width: clamp(360px, 34vw, 460px);
    --wb-toolbar-height: clamp(34px, 2.7vw, 40px);
    --wb-control-text: clamp(11px, calc(9px + .28vw), 13px);
    --wb-input-height: max(178px, clamp(100px, 18vh, 200px));
    --wb-action-width: 50px;
    --wb-image-height: 72px;
    --wb-send-height: 100px;
    margin: 0;
    background: var(--wb-bg);
    color: var(--wb-text);
    color-scheme: dark;
}

.ai-workbench-page .navbar {
    background: var(--wb-panel) !important;
    border-bottom: 1px solid var(--wb-border);
}
.ai-workbench-page .navbar .nav-link { color: var(--wb-muted) !important; }
.ai-workbench-page .navbar .nav-logo span,
.ai-workbench-page .navbar .nav-link:is(:hover, .active) { color: var(--wb-text) !important; }
.ai-workbench-page .navbar .nav-link.active { background: rgba(59, 130, 246, .3); box-shadow: none; }
.ai-workbench-page .navbar .nav-link.active::after { background: #60a5fa; }
.ai-workbench-page .navbar .nav-menu > li.nav-group-start::before { background: transparent; border-left-color: #94a3b8; }

body.ai-workbench-page .ai-workbench-main {
    position: fixed;
    inset: var(--site-nav-height, 60px) 0 0;
    display: flex;
    flex-direction: column;
    width: 100%;
    max-width: none;
    height: auto;
    min-height: 0;
    margin: 0;
    padding: 0;
    gap: 0;
    overflow: hidden;
    background: var(--wb-bg);
}
.ai-workbench-page .ai-workbench-main :is(.ai-manim-shell, .tools-workspace, #aiImageDrawPanel) {
    flex: 1;
    width: 100%;
    max-width: none;
    min-height: 0;
    margin: 0;
    overflow: hidden;
}
.ai-workbench-page .ai-manim-shell { display: flex; flex-direction: column; }
.ai-workbench-page .ai-manim-shell.ai-manim-hidden { display: none; }
.ai-workbench-page .ai-workbench-main :is(.ai-workbench-toolbar, .ai-tools-topbar) {
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    flex: 0 0 auto;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: none;
    min-height: var(--wb-toolbar-height);
    margin: 0;
    padding: 3px clamp(6px, .75vw, 12px);
    gap: 8px;
    border: 0;
    border-bottom: 1px solid var(--wb-border);
    border-radius: 0;
    background: var(--wb-panel);
}
.ai-workbench-title { margin: 0; font-size: 15px; font-weight: 700; text-align: left; white-space: nowrap; }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-toolbar-actions, .ai-image-toolbar-actions, .ai-tools-topbar-actions) {
    display: flex; align-items: center; flex-wrap: wrap; justify-content: flex-end; gap: 6px;
}
.ai-workbench-page .ai-workbench-library {
    display: inline-flex; align-items: center; justify-content: center; gap: 5px;
    min-height: 32px; padding: 0 10px; border: 1px solid #3b82f6; border-radius: 6px;
    background: #2563eb; color: #fff; font-size: 12px; font-weight: 700;
    text-decoration: none; white-space: nowrap;
}
.ai-workbench-page .ai-workbench-library:hover { background: #1d4ed8; color: #fff; }
.ai-workbench-page .ai-workbench-main :is(.ai-credit-purchase-btn, .ai-credit-sidebar-btn) {
    width: auto; min-height: 32px; margin: 0; padding: 0 10px;
    border-color: #f59e0b; background: linear-gradient(135deg, #f59e0b, #d97706); color: #fff;
}
.ai-workbench-page .ai-workbench-main :is(.ai-manim-guide-entry, .ai-image-guide-entry, .ai-tools-guide-entry) {
    min-height: 32px; padding: 0 10px; border-color: var(--wb-border); background: var(--wb-input); color: var(--wb-text);
}

/* 桌面左右贴合窗口，左栏宽度与 AI GGB 一致。 */
.ai-workbench-page .ai-workbench-main :is(.ai-manim-tab-panel[data-manim-panel="generate"], .tool-panel.active) { flex: 1; min-height: 0; height: 100%; overflow: hidden; }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-workspace, .ai-image-workbench, .html-animation-layout) {
    display: grid;
    grid-template-columns: var(--wb-control-width) minmax(0, 1fr);
    align-items: stretch;
    gap: 0;
    width: 100%;
    height: 100%;
    min-height: 0;
    max-height: none;
    border: 0;
    border-radius: 0;
    overflow: hidden;
    background: var(--wb-bg);
}
.ai-workbench-page .ai-workbench-main :is(.ai-manim-panel, .image-form-panel, .image-result-panel, .html-chat-panel, .html-chat-preview-panel) {
    min-width: 0; min-height: 0; border: 0; border-radius: 0; box-shadow: none;
    background: var(--wb-panel); color: var(--wb-text);
}
.ai-workbench-page .ai-workbench-main :is(.ai-manim-chat-panel, .image-form-panel, .html-chat-panel) { border-right: 1px solid var(--wb-border) !important; }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-chat-head, .ai-manim-preview-controls, .html-animation-options-grid, .html-conversation-toolbar, .result-header, .panel-header) {
    background: var(--wb-panel); border-color: var(--wb-border); color: var(--wb-text);
}
.ai-workbench-page .ai-workbench-main :is(.ai-manim-chat-composer, .ai-manim-generation-messages, .ai-manim-conversation-messages, .html-conversation-messages, .html-prompt-composer, .html-animation-reference-block, .html-animation-actions, .html-animation-output-panel, .image-result-grid, .image-result-column) {
    background: var(--wb-panel); border-color: var(--wb-border); color: var(--wb-text);
}
.ai-workbench-page .ai-workbench-main :is(.field-block span, .field-label, .ai-manim-chat-subject label, .ai-manim-preview-setting label, .ai-manim-orientation-label, .html-conversation-caption small, .html-result-status, .image-empty, .ai-manim-muted, .ai-manim-generation-welcome p, .ai-manim-generation-welcome small, .html-conversation-welcome, .html-preview-empty, .ai-manim-current-empty, .result-header p, .reference-upload-hint, .reference-upload-label, .image-credit-estimate, .result-precision-hint) { color: var(--wb-muted); }
.ai-workbench-page .ai-workbench-main :is(h1, h2, h3, .html-conversation-caption strong, .ai-manim-generation-welcome h2) { color: var(--wb-text); }
.ai-workbench-page .ai-workbench-main :is(input:not([type="radio"]):not([type="checkbox"]):not([type="file"]), select, textarea, .ratio-picker-trigger, .ai-manim-choice-trigger, .ai-manim-model-trigger, .html-model-trigger) {
    background: var(--wb-input); border-color: var(--wb-border); color: var(--wb-text); color-scheme: dark;
}
.ai-workbench-page .ai-workbench-main :is(textarea, input)::placeholder { color: #929292; }
.ai-workbench-page .ai-workbench-main select option { background: var(--wb-input); color: var(--wb-text); }
.ai-workbench-page .ai-workbench-main select option:disabled { color: var(--wb-text); }
.ai-workbench-page .ai-workbench-main :is(input, select, textarea, button, a):focus-visible { outline: 2px solid var(--wb-accent); outline-offset: 2px; }
.ai-workbench-page .ai-workbench-main :is(.secondary-tool-btn, .html-action-btn, .html-conversation-list-btn, .html-conversation-new-btn, .ai-manim-chat-history-btn, .ai-manim-chat-new-btn, .ai-manim-reference-trigger, .reference-upload-btn, .html-reference-trigger, .toolbar-btn, .ai-manim-btn-ghost, .ai-manim-icon-btn) {
    background: var(--wb-input); border-color: var(--wb-border); color: var(--wb-text); box-shadow: none;
}
.ai-workbench-page .ai-workbench-main :is(.primary-tool-btn, .ai-manim-chat-send, .ai-manim-btn-primary, .html-action-btn.primary, .btn-export) {
    background: linear-gradient(135deg, #6366f1, #8b5cf6); border-color: var(--wb-accent); color: #fff; box-shadow: none;
}
.ai-workbench-page .ai-workbench-main button:disabled { opacity: .5; }
.ai-workbench-page .ai-workbench-main :is(.ratio-picker-menu, .ai-manim-choice-panel, .ai-manim-reference-popover, .html-reference-popover, .html-conversation-list-panel, .html-conversation-list-head, .ai-manim-conversation-history-card, .ai-manim-conversation-history-card-head) {
    background: var(--wb-panel); border-color: var(--wb-border); color: var(--wb-text);
}
.ai-workbench-page .ai-workbench-main :is(.ratio-picker-option, .ai-manim-choice-opt, .html-conversation-list-item, .ai-manim-conversation-history-row) { background: transparent; border-color: var(--wb-border); color: var(--wb-text); }
.ai-workbench-page .ai-workbench-main :is(.ratio-picker-option, .ai-manim-choice-opt):is(:hover, .selected, [aria-selected="true"]) { background: var(--wb-selected); color: #a5b4fc; }
.ai-workbench-page .ai-workbench-main :is(.ratio-option-label, .ai-manim-choice-opt strong, .ai-manim-reference-popover-head, .html-reference-popover-head, .html-conversation-list-item-title, .ai-manim-conversation-history-row-copy strong) { color: inherit; }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-model-trigger-credits, .ai-manim-model-trigger-average, .html-model-trigger-average) { background: transparent; color: var(--wb-muted); }
.ai-workbench-page .ai-workbench-main :is(.html-conversation-message.assistant, .ai-manim-conversation-message.assistant, .ai-manim-generation-message.assistant) { background: var(--wb-input); color: var(--wb-text); border-color: var(--wb-border); }
.ai-workbench-page .ai-workbench-main :is(.html-conversation-message.user, .ai-manim-conversation-message.user, .ai-manim-generation-message.user) { background: rgba(99, 102, 241, .2); color: var(--wb-text); border-color: #454579; }

/* 图片页保留本次生成结果，历史作品由课件库管理。 */
.ai-workbench-page .ai-workbench-main .image-form-panel { padding: 14px; overflow-y: auto; }
.ai-workbench-page .ai-workbench-main .image-prompt { min-height: 120px; height: 140px; resize: vertical; }
.ai-workbench-page .ai-workbench-main .image-result-column { display: flex; flex-direction: column; min-height: 0; overflow: hidden; }
.ai-workbench-page .ai-workbench-main .image-result-panel { display: flex; flex-direction: column; flex: 1; min-height: 0; }
.ai-workbench-page .ai-workbench-main .result-header { flex-shrink: 0; padding: 12px; border-bottom: 1px solid var(--wb-border); }
.ai-workbench-page .ai-workbench-main .image-result-grid { flex: 1; min-height: 0; overflow-y: auto; }
.ai-workbench-page .ai-workbench-main .image-empty { display: flex; flex-direction: column; justify-content: center; min-height: 220px; height: 100%; }
.ai-workbench-page .ai-workbench-main .prompt-safety-hint { margin: 0; border-color: #573b28; background: #2c211b; color: #fdba74; border-radius: 0; flex-shrink: 0; }
.ai-workbench-page .ai-workbench-main .prompt-safety-hint p { color: #d6b59a; }
.ai-workbench-page .ai-workbench-main :is(.image-generated-card, .image-card) { background: var(--wb-input); border-color: var(--wb-border); }
.ai-workbench-page .ai-workbench-main .image-credit-estimate { background: var(--wb-input); border-color: var(--wb-border); }
.ai-workbench-page .ai-workbench-main .ratio-picker-trigger > span:first-child { color: var(--wb-text); }

/* 视频画面保留用户实际所选背景；只统一画面外的界面。 */
.ai-workbench-page .ai-workbench-main .ai-manim-current-panel { padding: 0; row-gap: 0; background: var(--wb-bg); }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-current-progress, .ai-manim-current-stage, .ai-manim-current-info, .ai-manim-conversation-workspace-preview, .ai-manim-workspace-preview-head) { background: transparent; border-color: var(--wb-border); color: var(--wb-text); }
.ai-workbench-page .ai-workbench-main .ai-manim-preview-controls { width: 100%; margin: 0; padding: 12px; }
.ai-workbench-page .ai-workbench-main .ai-manim-current-progress { padding: 10px 12px; border-bottom: 1px solid var(--wb-border); }
.ai-workbench-page .ai-workbench-main .ai-manim-current-stage { width: auto; margin: 0 12px; padding-top: 12px; }
.ai-workbench-page .ai-workbench-main .ai-manim-current-info { padding: 12px; }
.ai-workbench-page .ai-workbench-main .ai-manim-conversation-workspace-preview { height: auto; margin: 12px; }
.ai-workbench-page .ai-workbench-main .ai-manim-preview-controls-title { color: var(--wb-text) !important; }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-prompt-box, .ai-manim-prompt-tools-row) { background: var(--wb-panel); border-color: var(--wb-border); }
.ai-workbench-page #manimGenerationMessages { background: var(--wb-panel); color: var(--wb-text); }
.ai-workbench-page #manimPromptBox #prompt { color: var(--wb-text); }
.ai-workbench-page .ai-workbench-main .ai-manim-generation-welcome > span { background: rgba(99, 102, 241, .15); color: #a5b4fc; }
.ai-workbench-page .ai-workbench-main .ai-manim-generation-welcome small { background: var(--wb-input); border-color: var(--wb-border); }
.ai-workbench-page .ai-workbench-main :is(.generated-image-card, .generated-image-card-head, .generated-image-pager, .generated-image-meta, .generated-image-actions, .ai-manim-job-row) { background: var(--wb-input); border-color: var(--wb-border); color: var(--wb-text); }
.ai-workbench-page .ai-workbench-main .generated-image-card-head span { color: var(--wb-muted); }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-job-title, .ai-manim-conversation-history-card-head h2) { color: var(--wb-text); }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-job-meta, .ai-manim-conversation-history-row-copy small, .html-conversation-list-item-meta) { color: var(--wb-muted); }
.ai-workbench-page .ai-workbench-main .ai-manim-orientation-option span { background: var(--wb-input); border-color: var(--wb-border); color: var(--wb-text); }
.ai-workbench-page .ai-workbench-main .ai-manim-orientation-option input:checked + span { background: rgba(99, 102, 241, .2); border-color: var(--wb-accent); color: #a5b4fc; }
.ai-workbench-page .ai-workbench-main .ai-manim-node-status { border-color: var(--wb-border); background: var(--wb-input); color: var(--wb-muted); }

/* 生成任务记录单独打开；不再把历史任务做成作品库页签。 */
.ai-workbench-history[hidden] { display: none; }
.ai-workbench-history {
    position: fixed; inset: 0; z-index: 1500; display: flex; align-items: center; justify-content: center;
    padding: 20px; background: rgba(0, 0, 0, .65);
}
.ai-workbench-page .ai-workbench-main .ai-workbench-history-card {
    display: flex; flex-direction: column; width: min(760px, 100%); max-height: calc(100dvh - 40px);
    padding: 16px; border: 1px solid var(--wb-border); border-radius: 12px; background: var(--wb-panel); color: var(--wb-text);
}
.ai-workbench-history-card .ai-manim-section-head { flex-shrink: 0; gap: 8px; }
.ai-workbench-history-card .ai-manim-section-head h1 { flex: 1; margin: 0; font-size: 17px; }
.ai-workbench-history-card #jobList { min-height: 0; overflow-y: auto; }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-history-item, .ai-manim-history-card) { background: var(--wb-input); border-color: var(--wb-border); color: var(--wb-text); }

.ai-workbench-page .ai-workbench-main .html-save-hint { margin: 0; border: 0; border-bottom: 1px solid var(--wb-border); border-radius: 0; background: var(--wb-panel); color: var(--wb-muted); }
.ai-workbench-page .ai-workbench-main :is(.html-preview-shell, .html-preview-empty, .html-preview-loading) { background: var(--wb-bg); border-color: var(--wb-border); color: var(--wb-muted); }
.ai-workbench-page .ai-workbench-main :is(.reference-upload-drop, .result-precision-hint) { background: var(--wb-input); border-color: var(--wb-border); color: var(--wb-muted); }
.ai-workbench-page .ai-workbench-main .reference-upload-drop :is(span, small) { color: var(--wb-muted); }
.ai-workbench-page .ai-workbench-main :is(.html-conversation-list, .html-conversation-list-head) { background: var(--wb-panel); border-color: var(--wb-border); color: var(--wb-text); }
.ai-workbench-page .ai-workbench-main .html-conversation-message.is-assistant { background: var(--wb-input); color: var(--wb-text); border-color: var(--wb-border); }
.ai-workbench-page .ai-workbench-main .html-conversation-message.is-user { background: rgba(99, 102, 241, .2); color: var(--wb-text); border-color: #454579; }
.ai-workbench-page .ai-workbench-main :is(.html-model-trigger-label, .html-model-option-label, .ai-manim-preview-title) { color: var(--wb-text); }
.ai-workbench-page .ai-workbench-main .ai-tools-tabs { min-width: 0; width: auto; border-bottom: 0; box-shadow: none; }
.ai-workbench-page .ai-workbench-main .ai-manim-model-trigger-name { color: var(--wb-text); }
.ai-workbench-page :is(#toolHtmlAnimation, #toolHtml3dAnimation) .html-animation-layout {
    grid-template-columns: var(--wb-control-width) minmax(0, 1fr); border: 0; border-radius: 0; background: var(--wb-bg);
}
.ai-workbench-page .ai-workbench-main .ai-tools-tabs { gap: 4px; }
.ai-workbench-page .ai-workbench-main .tool-nav-item { padding: 0 10px; min-height: 34px; background: transparent; border: 1px solid transparent; border-radius: 6px; color: var(--wb-muted); }
.ai-workbench-page .ai-workbench-main .tool-nav-item.active { background: rgba(99, 102, 241, .18); border-color: #454579; color: #c7d2fe; box-shadow: none; }
.ai-workbench-page .ai-workbench-main .tool-nav-item.active::after { display: none; }
.ai-workbench-page .ai-workbench-main :is(.split-panel, .panel-left, .panel-right) { background: var(--wb-panel); border-color: var(--wb-border); border-radius: 0; }
.ai-workbench-page .ai-workbench-main .md-input { background: var(--wb-input); color: var(--wb-text); }
/* Markdown 实时预览与工作台共用深色；导出的Word文档由原导出器排版。 */
.ai-workbench-page .ai-workbench-main .md-preview { color-scheme: dark; background: var(--wb-bg); color: var(--wb-text); }
.ai-workbench-page .md-preview :is(h1, h2, h3, h4, h5, h6, strong, em) { color: var(--wb-text); }
.ai-workbench-page .md-preview :is(h1, h2, hr, th, td) { border-color: var(--wb-border); }
.ai-workbench-page .md-preview :is(blockquote, th, tr:nth-child(even), code) { background: var(--wb-input); color: var(--wb-text); }
.ai-workbench-page .md-preview pre { background: #16161e; color: var(--wb-text); }
.ai-workbench-page .md-preview pre code { background: transparent; color: inherit; }
.ai-workbench-page .md-preview :is(.preview-empty, .preview-empty p) { color: var(--wb-muted); }
.ai-workbench-page .md-preview a { color: #93c5fd; }
.ai-workbench-page .panel-divider { background: var(--wb-border); }
body.ai-workbench-page.md2word-active .tools-workspace { flex: 1; height: auto; }

.ai-workbench-page :is(.image-preview-dialog, .image-prompt-dialog, .image-prompt-modal-dialog, .html-large-preview-dialog) { background: var(--wb-panel); border-color: var(--wb-border); color: var(--wb-text); }
.ai-workbench-page :is(.image-preview-toolbar, .image-prompt-modal-header, .html-large-preview-header) { border-color: var(--wb-border); background: var(--wb-panel); color: var(--wb-text); }
.ai-workbench-page :is(.image-preview-modal-title, .image-prompt-modal-title) { color: var(--wb-text); }
.ai-workbench-page :is(.image-preview-close, .image-preview-zoom-btn, .image-prompt-modal-close) { background: var(--wb-input); border-color: var(--wb-border); color: var(--wb-text); }

/* 模型浮层：HTML 模型菜单由脚本挂到 body，不能要求它位于 main 内。 */
.ai-workbench-page :is(.ai-manim-model-panel, .html-model-popover) {
    background: var(--wb-popup);
    border-color: #404052;
    color: var(--wb-text);
    box-shadow: 0 12px 32px rgba(0, 0, 0, .4);
    scrollbar-color: #555568 var(--wb-popup);
}
.ai-workbench-page :is(.ai-manim-model-opt-head, .html-model-popover-head) {
    background: var(--wb-popup);
    border-color: #393949;
    color: var(--wb-muted);
}
.ai-workbench-page .ai-manim-model-opt,
.ai-workbench-page .html-model-popover button { background: transparent; color: #e5e5e5; }
.ai-workbench-page .ai-manim-model-opt:hover,
.ai-workbench-page .html-model-popover button:hover { background: rgba(99, 102, 241, .1); }
.ai-workbench-page .ai-manim-model-opt.selected,
.ai-workbench-page .html-model-popover button.is-selected { background: var(--wb-selected); color: #a5b4fc; }
.ai-workbench-page :is(.ai-manim-model-opt-name, .html-model-option-label) { color: inherit; }
.ai-workbench-page .ai-manim-model-opt.selected .ai-manim-model-opt-name { color: #a5b4fc; }
.ai-workbench-page :is(.ai-manim-model-opt-credits, .ai-manim-model-opt-average, .html-model-credits, .html-model-average) { color: #b8b8c8; }
.ai-workbench-page .ai-manim-model-opt.selected .ai-manim-model-opt-average,
.ai-workbench-page .html-model-popover button.is-selected .html-model-average { color: #c7d2fe; }
.ai-workbench-page :is(.ai-manim-model-opt-stars, .html-model-stars) { color: #fbbf24; }
.ai-workbench-page .html-model-stars .dim { color: inherit; opacity: .22; }
.ai-workbench-page .ai-manim-model-opt-name .text-only { color: #f87171; }
.ai-workbench-page :is(.ai-manim-model-opt, .html-model-popover button):focus-visible { outline: 2px solid #818cf8; outline-offset: -2px; }

/* 参考图、比例与对话操作也覆盖展开/悬停状态，避免深色页面出现白块。 */
.ai-workbench-page .ai-workbench-main :is(.ai-manim-reference-popover, .html-reference-popover)::after { background: var(--wb-panel); border-color: var(--wb-border); }
.ai-workbench-page .ai-workbench-main .ai-manim-reference-upload { background: var(--wb-input); border-color: #555; color: var(--wb-text) !important; }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-reference-popover-head span, .html-reference-popover-head span, .reference-upload-head > span, .ai-manim-chat-subject label > span, .ai-manim-prompt-model > label, .ai-manim-orientation-option small, .ai-manim-current-progress-copy small) { color: var(--wb-muted); }
.ai-workbench-page .ai-workbench-main .ai-manim-current-progress-copy span { color: var(--wb-text); }
.ai-workbench-page .ai-workbench-main .ratio-shape { background: var(--wb-selected); border-color: #818cf8; }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-current-screen, .ai-manim-preview-setting, .ai-manim-generation-welcome small) { border-color: var(--wb-border); }
.ai-workbench-page .ai-workbench-main .ai-manim-generation-welcome small { box-shadow: inset 0 0 0 1px var(--wb-border); }
.ai-workbench-page .ai-workbench-main progress { appearance: none; border: 0; accent-color: #818cf8; }
.ai-workbench-page .ai-workbench-main progress::-webkit-progress-bar { background: var(--wb-input); border-radius: 5px; }
.ai-workbench-page .ai-workbench-main progress::-webkit-progress-value { background: #818cf8; border-radius: 5px; }
.ai-workbench-page .ai-workbench-main :is(.secondary-tool-btn, .html-action-btn:not(.primary), .ai-manim-reference-trigger, .html-reference-trigger, .ai-manim-chat-history-btn, .ai-manim-chat-new-btn, .html-conversation-list-btn, .html-conversation-new-btn, .ai-manim-icon-btn, .ai-manim-current-download:disabled) { background: var(--wb-input); border-color: var(--wb-border); color: var(--wb-text); }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-choice-trigger, .ai-manim-model-trigger, .html-model-trigger, .ratio-picker-trigger, .secondary-tool-btn, .html-action-btn:not(.primary), .ai-manim-reference-trigger, .html-reference-trigger, .ai-manim-chat-history-btn, .ai-manim-chat-new-btn, .html-conversation-list-btn, .html-conversation-new-btn, .ai-manim-icon-btn):hover { background: var(--wb-hover); border-color: #626278; color: var(--wb-text); }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-chat-send, #btnGenerateHtmlAnimation, #btnGenerateHtml3dAnimation) { flex-shrink: 0; height: 44px; min-height: 44px; font-size: 13px; zoom: 1 !important; }
.ai-workbench-page .ai-workbench-main :is(.html-model-trigger-credits, .html-model-trigger-average) { color: var(--wb-muted); }
.ai-workbench-page .ai-workbench-main .html-model-trigger-stars { color: #fbbf24; }
.ai-workbench-page .ai-workbench-main .html-model-trigger-stars span { color: inherit; }
.ai-workbench-page .ai-workbench-main :is(.html-conversation-list-item, .ai-manim-conversation-history-row):hover { background: var(--wb-hover); border-color: #555; }
.ai-workbench-page .ai-workbench-main .html-conversation-open strong { color: var(--wb-text); }
.ai-workbench-page .ai-workbench-main :is(.html-conversation-open span, .html-conversation-list-state, .html-conversation-list-close, .html-conversation-pagination) { color: var(--wb-muted); border-color: var(--wb-border); }
.ai-workbench-page .ai-workbench-main .html-conversation-pagination button { background: var(--wb-input); border-color: var(--wb-border); color: var(--wb-text); }
.ai-workbench-page .ai-workbench-main .ai-manim-conversation-history-row-actions .ai-manim-btn { background: var(--wb-input); border-color: var(--wb-border); color: var(--wb-text); }
.ai-workbench-page .ai-workbench-main .ai-manim-conversation-history-dialog-list { background: var(--wb-panel); }
.ai-workbench-page .ai-workbench-main .ai-manim-conversation-history-row-copy { color: var(--wb-text); }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-conversation-history-card-head p, .ai-manim-conversation-history-card-foot) { background: var(--wb-panel); border-color: var(--wb-border); color: var(--wb-muted); }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-annotation-popover, .ai-manim-annotation-tool > button, .ai-manim-annotation-popover-head button) { background: var(--wb-input); border-color: var(--wb-border); color: var(--wb-text); }
.ai-workbench-page .ai-workbench-main .ai-manim-annotation-popover-head { color: var(--wb-text); }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-annotation-popover p, .ai-manim-adjustment-context) { color: var(--wb-muted); }

/* 动态创建的确认/图片弹窗沿用工作台配色，正文与按钮保持清晰对比。 */
.ai-workbench-page :is(.ai-manim-action-modal-dialog, .html-action-confirm-dialog, .ai-reference-image-dialog, .image-download-confirm-dialog) { background: var(--wb-panel); border-color: var(--wb-border); color: var(--wb-text); box-shadow: 0 24px 70px rgba(0, 0, 0, .45); }
.ai-workbench-page :is(.ai-manim-action-modal-head, .ai-manim-action-modal-actions, .image-prompt-modal-footer) { background: var(--wb-panel); border-color: var(--wb-border); }
.ai-workbench-page :is(.ai-manim-action-modal-title, .ai-manim-action-modal-message, .ai-manim-action-modal-field span, .html-action-confirm-copy h3, .image-prompt-modal-text) { color: var(--wb-text); }
.ai-workbench-page :is(.ai-manim-action-modal-subtitle, .html-action-confirm-copy p, .ai-reference-image-missing) { color: var(--wb-muted); }
.ai-workbench-page :is(.ai-manim-action-modal-note, .ai-manim-action-modal-field input, .ai-manim-action-modal-field select, .ai-manim-action-modal-close, .ai-manim-action-modal-btn.secondary, .html-action-confirm-cancel, .ai-reference-image-thumb, .image-prompt-modal-done) { background: var(--wb-input); border-color: var(--wb-border); color: var(--wb-text); }
.ai-workbench-page :is(.ai-manim-action-modal-icon, .html-action-confirm-icon) { background: var(--wb-selected); color: #a5b4fc; }
.ai-workbench-page .html-action-confirm-modal.is-danger .html-action-confirm-icon { background: rgba(239, 68, 68, .16); color: #fca5a5; }
.ai-workbench-page .ai-manim-action-modal-btn.primary,
.ai-workbench-page .html-action-confirm-modal:not(.is-danger) .html-action-confirm-submit { background: #6366f1; border-color: #6366f1; color: #fff; box-shadow: none; }
.ai-workbench-page :is(.ai-manim-action-modal-close, .ai-manim-action-modal-btn.secondary, .html-action-confirm-cancel, .image-preview-close, .image-preview-zoom-btn, .image-prompt-modal-close, .image-prompt-modal-done):hover { background: var(--wb-hover); color: var(--wb-text); border-color: #555; }
.ai-workbench-page .ai-reference-image-close { color: var(--wb-text); }
.ai-workbench-page :is(.ai-manim-action-modal-dialog, .html-action-confirm-dialog, .html-model-popover) :is(button, input, select):focus-visible { outline: 2px solid #818cf8; outline-offset: 2px; }
.ai-workbench-page :is(.ai-manim-action-modal-backdrop, .html-action-confirm-backdrop) { background: rgba(0, 0, 0, .65); }
.ai-workbench-page :is(.image-download-confirm-content h2, .image-download-confirm-content strong) { color: var(--wb-text); }
.ai-workbench-page :is(.image-download-confirm-kicker, .image-download-confirm-content p) { color: var(--wb-muted); }
.ai-workbench-page :is(.image-download-confirm-icon, .image-download-confirm-note, .image-download-confirm-secondary, .image-download-confirm-close) { background: var(--wb-input); border-color: var(--wb-border); color: var(--wb-text); }
.ai-workbench-page .image-download-confirm-note i { color: #fbbf24; }
.ai-workbench-page .image-download-confirm-primary { background: #6366f1; border-color: #6366f1; }
.ai-workbench-page .image-download-confirm-primary:hover { background: #4f46e5; border-color: #4f46e5; }
.ai-workbench-page :is(.image-download-confirm-secondary, .image-download-confirm-close):hover { background: var(--wb-hover); border-color: #555; color: var(--wb-text); }

@media (max-width: 850px) {
    body.ai-workbench-page .ai-workbench-main { overflow-y: auto; }
    .ai-workbench-page .ai-workbench-main :is(.ai-manim-shell, .tools-workspace, #aiImageDrawPanel, .ai-manim-tab-panel[data-manim-panel="generate"], .tool-panel.active) { flex: none; height: auto; overflow: visible; }
    .ai-workbench-page .ai-workbench-main :is(.ai-manim-workspace, .ai-image-workbench, .html-animation-layout) { grid-template-columns: minmax(0, 1fr); height: auto; overflow: visible; }
    .ai-workbench-page .ai-workbench-main :is(.ai-manim-chat-panel, .html-chat-panel) { height: 640px; min-height: 540px; max-width: none; width: 100%; border-right: 0 !important; border-bottom: 1px solid var(--wb-border); }
    .ai-workbench-page .ai-workbench-main .image-form-panel { overflow: visible; border-right: 0 !important; border-bottom: 1px solid var(--wb-border); }
    .ai-workbench-page .ai-workbench-main :is(.ai-manim-current-panel, .html-chat-preview-panel, .image-result-column) { min-height: 450px; overflow: visible; }
    .ai-workbench-page .ai-workbench-main .ai-workbench-toolbar { flex-wrap: wrap; }
    .ai-workbench-page .ai-workbench-main .ai-tools-topbar { flex-direction: column; flex-wrap: nowrap; align-items: stretch; }
    .ai-workbench-page .ai-workbench-main .ai-tools-tabs { width: 100%; flex: 0 0 auto; overflow-x: auto; }
    .ai-workbench-page :is(#toolHtmlAnimation, #toolHtml3dAnimation) .html-animation-layout { grid-template-columns: minmax(0, 1fr); }
    .ai-workbench-page .ai-workbench-main .ai-tools-topbar-actions { justify-content: flex-end; }
    .ai-workbench-page .ai-workbench-main .tool-nav-item { flex: 1 0 auto; }
    .ai-workbench-page .ai-workbench-main .ai-tools-topbar-actions :is(.ai-credit-sidebar-btn, .ai-tools-guide-entry) span { display: inline; }
    .ai-workbench-page .ai-workbench-main .split-panel { height: auto; min-height: 650px; }
    body.ai-workbench-page.md2word-active .tools-workspace { height: auto; overflow: visible; }
}
@media (max-width: 480px) {
    .ai-workbench-page .ai-workbench-main :is(.ai-workbench-toolbar, .ai-tools-topbar) { padding: 6px 8px; }
    .ai-workbench-page .ai-workbench-main .ai-manim-toolbar-actions { width: 100%; justify-content: flex-start; }
    .ai-workbench-page .ai-workbench-main .ai-manim-node-status { max-width: 100%; }
    .ai-workbench-page .ai-workbench-main .ai-manim-chat-head { flex-wrap: wrap; }
    .ai-workbench-page .ai-workbench-main .ai-manim-chat-head-actions { gap: 4px; }
    .ai-workbench-page .ai-workbench-main .ai-manim-chat-history-btn { font-size: 11px; padding: 0 6px; }
    .ai-workbench-page .ai-workbench-main .tool-nav-item { font-size: 11px; padding: 0 6px; }
    .ai-workbench-page .ai-workbench-main .tool-nav-item span { white-space: nowrap; }
}

/* 与 AI GGB 对齐：两栏直接接导航，公共操作只占右栏顶部。 */
.ai-workbench-page .ai-workbench-preview-column { display: flex; flex-direction: column; min-width: 0; min-height: 0; overflow: hidden; }
.ai-workbench-page .ai-workbench-preview-column > .ai-manim-current-panel { flex: 1; height: auto; min-height: 0; }
.ai-workbench-page .ai-workbench-main .ai-workbench-toolbar { flex: 0 0 auto; background: var(--wb-input); justify-content: flex-end; }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-toolbar-actions, .ai-image-toolbar-actions) { width: 100%; gap: clamp(4px, .6vw, 10px); justify-content: flex-end; }
.ai-workbench-page .ai-workbench-main .ai-tools-topbar { display: grid; grid-template-columns: var(--wb-control-width) minmax(0, 1fr); padding: 0; gap: 0; background: var(--wb-input); }
.ai-workbench-page .ai-workbench-main .ai-tools-tabs { align-self: stretch; margin: 0; padding: 3px 6px; border-right: 1px solid var(--wb-border); border-radius: 0; gap: 2px; }
.ai-workbench-page .ai-workbench-main .tool-nav-item { padding: 2px 6px; min-height: 28px; font-size: 11px; }
.ai-workbench-page .ai-workbench-main .ai-tools-topbar-actions { padding: 3px clamp(6px, .75vw, 12px); gap: clamp(4px, .6vw, 10px); }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-chat-head, .html-animation-options-grid) { min-height: var(--wb-toolbar-height); padding: 3px clamp(6px, .75vw, 12px); background: var(--wb-input); gap: 6px; }
.ai-workbench-page .ai-workbench-main .ai-manim-chat-subject { flex: 1; min-width: 0; }
.ai-workbench-page .ai-workbench-main .ai-manim-chat-subject label { min-width: 0; gap: 5px; }
.ai-workbench-page .ai-workbench-main .ai-manim-chat-subject select { flex: 0 0 auto; min-width: 0; width: clamp(100px, 8.5vw, 120px); height: 28px; min-height: 0; padding: 2px 4px; font-size: var(--wb-control-text); }
.ai-workbench-page .ai-workbench-main .ai-manim-node-status { height: auto; min-height: 0; margin: 0; padding: 3px 8px; font-size: var(--wb-control-text); }
.ai-workbench-page .ai-workbench-main .ai-manim-chat-head-actions { gap: clamp(4px, .55vw, 10px); }

/* 同一功能使用 AI GGB 的按钮颜色、圆角和字号。 */
.ai-workbench-page .ai-workbench-main :is(.ai-workbench-library, .ai-credit-purchase-btn, .ai-credit-sidebar-btn, .ai-manim-guide-entry, .ai-image-guide-entry, .ai-tools-guide-entry, .html-action-btn) {
    width: auto; min-height: 0; height: auto; padding: 2px clamp(5px, .7vw, 10px); border-radius: 16px; font-size: var(--wb-control-text); line-height: 1.5; gap: 6px; zoom: 1;
}
.ai-workbench-page .ai-workbench-main .ai-workbench-library { background: linear-gradient(135deg, #3b82f6, #2563eb); }
.ai-workbench-page .ai-workbench-main #btnGenerateImage { border-radius: 10px; background: linear-gradient(135deg, #6366f1, #8b5cf6, #a855f7, #7c3aed); }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-chat-head, .html-conversation-toolbar) :is(.ai-manim-chat-history-btn, .html-conversation-list-btn) { min-height: 28px; height: auto; padding: 2px clamp(5px, .55vw, 10px); min-width: 0; font-size: var(--wb-control-text); border-radius: 6px; border: 1px solid #8b5cf6; color: #8b5cf6; background: transparent; box-shadow: none; }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-chat-head, .html-conversation-toolbar) :is(.ai-manim-chat-history-btn, .html-conversation-list-btn):hover { background: #8b5cf6; border-color: #8b5cf6; color: #fff; }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-chat-new-btn, .html-conversation-new-btn, #btnClearImage) { min-height: 28px; height: auto; padding: 2px clamp(5px, .55vw, 10px); min-width: 0; font-size: var(--wb-control-text); border-radius: 6px; border: 1px solid #3b82f6; color: #3b82f6; background: transparent; box-shadow: none; }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-chat-new-btn, .html-conversation-new-btn, #btnClearImage):hover { background: #3b82f6; border-color: #3b82f6; color: #fff; }
.ai-workbench-page .ai-workbench-main :is(.html-action-btn.primary, #btnSaveHtmlAnimation, #btnSaveHtml3dAnimation, .ai-manim-current-download) { background: linear-gradient(135deg, #64748b, #475569); border-color: #64748b; color: #fff; }

/* 输入框右侧图片/生成按钮与 GGB 同排，避免底部再占一整行。 */
.ai-workbench-page .ai-workbench-main .ai-workbench-input-row { display: flex; flex: 0 0 auto; align-items: stretch; gap: 8px; height: var(--wb-input-height); min-height: 0; }
.ai-workbench-page .ai-manim-chat-composer > .ai-workbench-input-row { order: 3; }
.ai-workbench-page .ai-manim-chat-composer > #formMessage { order: 4; }
.ai-workbench-page .ai-manim-chat-composer > .ai-workbench-generation-cost { order: 3; color: var(--wb-muted); font-size: 12px; }
.ai-workbench-page .ai-workbench-main .ai-workbench-input-row > :is(.ai-manim-prompt-box, textarea) { flex: 1; width: 0; min-width: 0; height: 100%; min-height: 0; margin: 0; resize: none; box-sizing: border-box; }
.ai-workbench-page #manimPromptBox { position: relative; display: flex; flex-direction: column; border: 1px solid var(--wb-border); border-radius: 12px; background: var(--wb-input); }
.ai-workbench-page #manimPromptBox #prompt { flex: 1; height: 0; min-height: 0; max-height: none; }
.ai-workbench-page .ai-workbench-main .ai-workbench-input-actions { display: flex; flex: 0 0 var(--wb-action-width); width: var(--wb-action-width); flex-direction: column; gap: 6px; justify-content: space-between; }
.ai-workbench-page .ai-workbench-main .ai-workbench-input-actions :is(.ai-manim-reference-block, .html-reference-picker) { position: relative; margin: 0; padding: 0; width: 100%; min-width: 0; border: 0; background: transparent; box-shadow: none; }
.ai-workbench-page .ai-workbench-main .ai-workbench-input-actions :is(.ai-manim-reference-trigger, .html-reference-trigger) { position: relative; display: flex; flex-direction: column; align-items: center; justify-content: center; width: 100%; min-width: 0; height: var(--wb-image-height); min-height: 0; padding: 2px; gap: 2px; border-radius: 10px; background: transparent; border-color: var(--wb-border); color: var(--wb-muted); font-size: 14px; zoom: 1; }
.ai-workbench-page .ai-workbench-main .ai-workbench-input-actions .ai-manim-reference-button-label { display: contents; }
.ai-workbench-page .ai-workbench-input-actions :is(.html-reference-trigger > span, .ai-manim-reference-button-label strong) { width: 2em; white-space: normal; font-size: 10px; line-height: 1.1; }
.ai-workbench-page .ai-workbench-input-actions :is(#manimReferenceCount, .html-reference-trigger > strong) { position: absolute; right: -3px; top: -5px; padding: 0 2px; border-radius: 4px; background: var(--wb-panel); color: var(--wb-muted); font-size: 8px; line-height: 1.2; }
.ai-workbench-page .ai-workbench-main .ai-workbench-input-actions :is(.ai-manim-chat-send, #btnGenerateHtmlAnimation, #btnGenerateHtml3dAnimation) { display: flex; flex-direction: column; align-items: center; justify-content: center; width: 100%; min-width: 0; height: var(--wb-send-height); min-height: 0; margin: 0; padding: 2px; border: 0; border-radius: 10px; font-size: 13px; line-height: 1.3; background: linear-gradient(135deg, #6366f1, #8b5cf6, #a855f7, #7c3aed); }
.ai-workbench-page .ai-workbench-input-actions :is(.ai-manim-chat-send, .primary-tool-btn) > span { width: 2em; white-space: normal; overflow-wrap: anywhere; }
.ai-workbench-page .ai-workbench-input-actions :is(.ai-manim-chat-send, .primary-tool-btn) > i:not(.fa-spinner) { display: none; }
.ai-workbench-page .ai-workbench-input-actions :is(.ai-manim-chat-send, .primary-tool-btn):has(.fa-spinner) { gap: 2px; }
.ai-workbench-page .ai-workbench-input-actions :is(.ai-manim-chat-send, .primary-tool-btn):has(.fa-spinner) > span { font-size: 11px; line-height: 1; }
.ai-workbench-page .ai-workbench-input-actions .fa-spinner { font-size: 12px; }
.ai-workbench-page .ai-workbench-main .ai-workbench-input-actions :is(.ai-manim-reference-popover, .html-reference-popover) { left: auto; right: 0; }
.ai-workbench-page .ai-workbench-main .ai-workbench-input-actions :is(.ai-manim-reference-popover, .html-reference-popover)::after { left: auto; right: 16px; }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-prompt-tools-row, .html-composer-tools-row) { grid-template-columns: minmax(0, 1fr); }
.ai-workbench-page .ai-workbench-main .ai-manim-chat-composer { padding-bottom: 10px; gap: 8px; }
.ai-workbench-page .ai-workbench-main #formMessage:empty { display: none; }
.ai-workbench-page .ai-workbench-main .html-prompt-composer { padding-bottom: 10px; }

/* 历史使用 AI GGB 的左侧全高滑出层，不在聊天区内另套一张卡片。 */
.ai-workbench-page .ai-workbench-main :is(.ai-manim-conversation-history-dialog, .html-conversation-list-panel, .ai-workbench-history) { position: absolute; inset: 0; z-index: 100; width: 100%; height: 100%; max-height: none; padding: 0; margin: 0; border: 0; border-radius: 0; background: var(--wb-bg); box-shadow: none; }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-conversation-history-dialog:not([hidden]), .html-conversation-list-panel.is-open, .ai-workbench-history:not([hidden])) { display: flex; flex-direction: column; animation: workbenchHistoryIn .25s ease; }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-conversation-history-card, .ai-workbench-history-card) { width: 100%; height: 100%; max-height: none; min-height: 0; padding: 0; border: 0; border-radius: 0; box-shadow: none; background: var(--wb-bg); }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-conversation-history-card-head, .html-conversation-list-head, .ai-workbench-history-card .ai-manim-section-head) { flex: 0 0 auto; display: flex; align-items: center; justify-content: space-between; min-height: 0; margin: 0; padding: 12px 16px; gap: 8px; border-bottom: 1px solid var(--wb-border); background: var(--wb-bg); font-size: 15px; font-weight: 600; }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-conversation-history-card-head h2, .ai-workbench-history-card .ai-manim-section-head h1) { margin: 0; font-size: 15px; font-weight: 600; }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-conversation-history-card-head h2 i, .html-conversation-list-head span i, .ai-workbench-history-card h1 i) { color: #8b5cf6; margin-right: 6px; }
.ai-workbench-page .ai-workbench-main :is(.html-conversation-list-close, [data-close-manim-conversation-history], [data-close-manim-job-history]) { background: transparent; border: 0; border-radius: 6px; color: var(--wb-muted); font-size: 24px; min-height: 32px; min-width: 32px; padding: 4px 6px; line-height: 1; }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-conversation-history-dialog-list, .html-conversation-list, .ai-manim-conversation-history-card #jobList) { flex: 1; min-height: 0; max-height: none; padding: 8px; gap: 4px; overflow-y: auto; background: var(--wb-bg); }
.ai-workbench-page .ai-workbench-history-pane { display: flex; flex: 1; min-height: 0; flex-direction: column; overflow: hidden; }
.ai-workbench-page :is(.ai-workbench-history-pane, .ai-manim-conversation-history-card button)[hidden] { display: none !important; }
.ai-workbench-page .ai-workbench-history-tabs { display: flex; flex: 0 0 auto; gap: 8px; padding: 8px; border-bottom: 1px solid var(--wb-border); }
.ai-workbench-page .ai-workbench-history-tabs button { position: relative; flex: 1; padding: 8px 12px; border: 1px solid var(--wb-border); border-radius: 6px; background: var(--wb-input); color: var(--wb-muted); font-size: 13px; cursor: pointer; }
.ai-workbench-page .ai-workbench-history-tabs button[aria-selected="true"] { border-color: var(--wb-accent); background: var(--wb-selected); color: #c7c8ff; }
.ai-workbench-page .ai-manim-conversation-history-card #jobList { display: flex; flex-direction: column; border: 0; border-radius: 0; }
.ai-workbench-page .ai-manim-conversation-history-card .ai-manim-job-row { display: flex; flex: 0 0 auto; flex-direction: column; align-items: stretch; gap: 8px; padding: 10px 12px; border: 1px solid transparent; border-radius: 8px; background: transparent; }
.ai-workbench-page .ai-manim-conversation-history-card .ai-manim-job-row:hover { background: var(--wb-hover); border-color: var(--wb-border); }
.ai-workbench-page .ai-manim-conversation-history-card .ai-manim-job-meta { white-space: normal; overflow-wrap: anywhere; font-size: 11px; }
.ai-workbench-page .ai-manim-conversation-history-card .ai-manim-job-side { gap: 6px; }
.ai-workbench-page .ai-manim-conversation-history-card .ai-manim-job-progress { width: 64px; color: var(--wb-muted); }
.ai-workbench-page .ai-manim-conversation-history-card .ai-manim-history-link { padding: 0 6px; min-height: 28px; background: var(--wb-input); border: 1px solid var(--wb-border); color: #c7c8ff; font-size: 11px; }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-conversation-history-row, .html-conversation-list-item) { margin-bottom: 4px; padding: 10px 12px; border: 1px solid transparent; border-radius: 8px; background: transparent; transform: none; box-shadow: none; }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-conversation-history-row, .html-conversation-list-item):hover { border-color: var(--wb-border); background: var(--wb-hover); transform: none; box-shadow: none; }
.ai-workbench-page .ai-workbench-history-stats { flex: 0 0 auto; margin: 8px 8px 0; padding: 8px 12px; border-radius: 8px; background: rgba(99, 102, 241, .08); color: var(--wb-muted); font-size: 12px; }

/* 历史标题、元信息、图标操作和状态沿用AI GGB列表的字号与配色。 */
.ai-workbench-page .ai-workbench-history-number { color: var(--wb-muted); margin-right: 4px; font-variant-numeric: tabular-nums; }
.ai-workbench-page .ai-workbench-main .html-conversation-open strong .ai-workbench-history-number { display: inline; color: var(--wb-muted); font-size: inherit; }
.ai-workbench-page .ai-workbench-main .html-conversation-list-close { font-size: 28px !important; }
.ai-workbench-page .ai-workbench-main .html-conversation-list-close i { margin: 0; color: inherit; font-size: 24px; }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-conversation-history-row-copy strong, .html-conversation-open strong, .ai-manim-job-title) { color: var(--wb-text); font-size: 13px; font-weight: 500; }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-conversation-history-row-copy small, .html-conversation-open > span) { color: var(--wb-muted); font-size: 11px; }
.ai-workbench-page .ai-workbench-main :is(.ai-manim-conversation-history-row, .html-conversation-list-item).active { background: rgba(99, 102, 241, .1); border-color: rgba(99, 102, 241, .3); }
.ai-workbench-page .ai-workbench-main .html-conversation-delete { padding: 6px; border: 0; background: transparent; color: #ef4444; font-size: 13px; opacity: .4; }
.ai-workbench-page .ai-workbench-main .html-conversation-list-item:hover .html-conversation-delete { opacity: .8; }
.ai-workbench-page .ai-workbench-main .html-conversation-delete:hover { background: rgba(239, 68, 68, .15); opacity: 1; }
.ai-workbench-page .ai-workbench-main .ai-manim-history-rerender-btn { min-width: 30px; padding: 6px; background: transparent; border: 0; color: #8b5cf6; font-size: 13px; }
.ai-workbench-page .ai-manim-history-rerender-btn .ai-workbench-action-label { position: absolute; width: 1px; height: 1px; clip-path: inset(50%); overflow: hidden; white-space: nowrap; }
.ai-workbench-page .ai-manim-conversation-history-card .ai-manim-history-more { flex: 0 0 auto; padding: 8px 4px; background: transparent; }
.ai-workbench-page .ai-manim-conversation-history-card .ai-manim-status.success { background: rgba(16, 185, 129, .15); color: #6ee7b7; }
.ai-workbench-page .ai-manim-conversation-history-card .ai-manim-status.failed { background: rgba(239, 68, 68, .15); color: #fca5a5; }
.ai-workbench-page .ai-manim-conversation-history-card .ai-manim-error { padding: 8px 10px; border-radius: 6px; background: rgba(239, 68, 68, .08); color: #fca5a5; font-size: 11px; line-height: 1.6; }
.ai-workbench-page .ai-workbench-library-count { font-variant-numeric: tabular-nums; }

/* 学科选项使用网页菜单，避免系统禁用占位文字出现黑色。 */
.ai-workbench-page .ai-workbench-select { position: relative; display: inline-flex; min-width: 0; width: 100%; }
.ai-workbench-page .ai-workbench-main select.ai-workbench-select-native { position: absolute; width: 1px; height: 1px; min-height: 0; padding: 0; opacity: 0; pointer-events: none; }
.ai-workbench-page .ai-workbench-select-trigger { display: flex; align-items: center; justify-content: space-between; gap: 6px; width: 100%; min-width: 0; height: 38px; padding: 0 10px; border: 1px solid var(--wb-border); border-radius: 6px; background: var(--wb-input); color: var(--wb-text); font-size: inherit; font-weight: 600; cursor: pointer; }
.ai-workbench-page .ai-workbench-select-trigger span { color: var(--wb-text); min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ai-workbench-page .ai-workbench-select-trigger i { flex-shrink: 0; color: var(--wb-muted); font-size: 10px; }
.ai-workbench-page .ai-manim-chat-subject .ai-workbench-select { width: clamp(100px, 8.5vw, 120px); }
.ai-workbench-page .ai-manim-chat-subject .ai-workbench-select-trigger { height: 28px; padding: 0 6px; font-size: var(--wb-control-text); }
.ai-workbench-page .html-animation-options-grid .ai-workbench-select-trigger { height: 34px; font-size: 12px; }
.ai-workbench-page .ai-workbench-select-menu { position: fixed; z-index: 12000; padding: 4px; overflow-y: auto; border: 1px solid var(--wb-border); border-radius: 8px; background: var(--wb-input); box-shadow: 0 8px 24px rgba(0, 0, 0, .4); color-scheme: dark; }
.ai-workbench-page .ai-workbench-select-menu[hidden] { display: none; }
.ai-workbench-page .ai-workbench-select-menu button { display: block; width: 100%; min-height: 32px; padding: 6px 10px; border: 0; border-radius: 4px; text-align: left; background: transparent; color: var(--wb-text); font-size: 12px; cursor: pointer; }
.ai-workbench-page .ai-workbench-select-menu button:disabled { color: var(--wb-text); opacity: 1; cursor: default; }
.ai-workbench-page .ai-workbench-select-menu button:not(:disabled):is(:hover, :focus-visible, [aria-selected="true"]) { background: var(--wb-selected); outline: none; color: #c7c8ff; }
@keyframes workbenchHistoryIn { from { opacity: 0; transform: translateX(-20px); } to { opacity: 1; transform: translateX(0); } }
@media (prefers-reduced-motion: reduce) { .ai-workbench-page .ai-workbench-main :is(.ai-manim-conversation-history-dialog, .html-conversation-list-panel, .ai-workbench-history) { animation: none !important; } }
@media (min-width: 851px) and (max-width: 1366px), (min-width: 851px) and (max-height: 760px) {
    body.ai-workbench-page { --wb-control-width: clamp(340px, 31vw, 400px); --wb-input-height: clamp(100px, 18vh, 200px); --wb-action-width: 44px; --wb-image-height: 46px; --wb-send-height: 48px; }
}
@media (min-width: 851px) and (max-height: 760px) { body.ai-workbench-page { --wb-input-height: 100px; } }
@media (max-width: 850px) {
    body.ai-workbench-page { --wb-toolbar-height: 40px; --wb-control-text: 12px; --wb-input-height: 102px; --wb-action-width: 48px; --wb-image-height: 48px; --wb-send-height: 48px; }
    .ai-workbench-page .ai-workbench-main .ai-tools-topbar { display: flex; flex-direction: column; }
    .ai-workbench-page .ai-workbench-main .ai-tools-tabs { border-right: 0; border-bottom: 1px solid var(--wb-border); }
    .ai-workbench-page .ai-workbench-preview-column { min-height: 500px; overflow: visible; }
    .ai-workbench-page .ai-workbench-main :is(.ai-manim-chat-panel, .html-chat-panel) { height: min(640px, calc(100dvh - var(--site-nav-height, 60px))); min-height: 460px; }
    .ai-workbench-page .ai-workbench-main :is(.ai-workbench-toolbar, .ai-tools-topbar-actions) { padding: 6px 8px; }
    .ai-workbench-page .ai-workbench-main .ai-manim-toolbar-actions { flex-wrap: wrap; }
    .ai-workbench-page .ai-workbench-main .tool-nav-item { flex-direction: row; }
}