.content-editor{--edit-ink:#202124;--edit-muted:#686b70;--edit-line:#e4e5e8;--edit-blue:#006cce;margin:24px 0;color:var(--edit-ink);font-family:-apple-system,BlinkMacSystemFont,'PingFang SC','Shikong Sans SC','Helvetica Neue',sans-serif;background:#fff;border:1px solid var(--edit-line);border-radius:12px;position:relative;isolation:isolate;overflow:hidden;text-align:left}.content-editor *{box-sizing:border-box}.content-editor [hidden]{display:none!important}.content-editor button,.content-editor summary{font:500 13px/1.35 -apple-system,BlinkMacSystemFont,'PingFang SC',sans-serif;letter-spacing:0;color:inherit;cursor:pointer}.content-editor button{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-height:34px;padding:7px 10px;background:transparent;border:0;border-radius:7px;transition:background .16s ease-out,color .16s ease-out;white-space:nowrap}.content-editor button:hover,.content-editor summary:hover{background:#edf0f3}.content-editor button:disabled{color:#767a7f;opacity:.45;cursor:default}.content-editor button svg{width:18px;height:18px;flex:none}.content-editor :is(button,summary,input,[contenteditable]):focus-visible{outline:2px solid var(--edit-blue);outline-offset:2px}.content-editor ::selection{background:#cce5ff;color:#16283c}.content-editor [contenteditable]{caret-color:var(--edit-blue)}.content-editor ::-webkit-scrollbar{width:7px;height:7px}.content-editor ::-webkit-scrollbar-thumb{background:#c6c9ce;border:2px solid #f7f8fa;border-radius:8px}
.content-editor-heading{padding:16px 20px 12px;display:flex;align-items:baseline;gap:12px}.content-editor-heading h3{font-size:17px;line-height:1.4;font-weight:600;margin:0;letter-spacing:-.02em}.content-editor-heading p{font-size:12px;line-height:1.6;color:var(--edit-muted);margin:0}.content-editor-toolbar{min-height:58px;display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:14px;padding:9px 18px;border-bottom:1px solid var(--edit-line);background:#fff;flex:none}.content-editor-primary-actions,.content-editor-save-actions,.content-history-actions{display:flex;align-items:center;gap:3px;min-width:0}.content-editor-save-actions{justify-content:flex-end}.content-history-actions{margin-left:8px}.content-editor [data-content-action=exit]{display:none}.content-editor [data-content-action=exit]::after{content:'返回';font-size:13px}.content-editor [data-content-action=enter]::after{content:'展开编排';font-size:13px}.content-editor [data-content-action=preview]{background:#252527;color:#fff;padding-inline:16px}.content-editor [data-content-action=preview]:hover{background:#3d3d3f}.content-editor [data-content-save-state]{font-size:11px;color:var(--edit-muted);margin-right:5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:150px}.content-editor .content-page-position{display:flex;align-items:center;justify-content:center;gap:5px;width:auto;margin:0;font-size:12px;font-weight:400;line-height:1.5;color:var(--edit-muted);white-space:nowrap;font-variant-numeric:tabular-nums}.content-editor .content-page-position input{display:block;min-width:0;width:40px;min-height:30px;padding:4px 2px;margin:0;border:1px solid transparent;background:#f6f6f8;border-radius:5px;color:var(--edit-ink);font:400 13px/1.5 inherit;text-align:center;appearance:textfield}.content-page-position input::-webkit-inner-spin-button{appearance:none}.content-editor [data-content-editor-error]{margin:0;padding:9px 18px;color:#a82720;background:#fff4f2;font-size:13px;line-height:1.6;flex:none}.content-editor [data-content-editor-error]:empty{display:none}.content-upload-status{width:100%;border-radius:0!important;justify-content:flex-start!important;padding:6px 18px!important;font-size:11px!important;background:#f7f9fc!important;color:#365a7c!important;min-height:28px!important;flex:none}
.content-editor-add,.content-page-actions,.content-layout-menu,.content-insert-between{position:relative;margin:0!important}.content-editor summary{list-style:none;padding:7px 9px;border-radius:6px;min-height:32px}.content-editor summary::-webkit-details-marker{display:none}.content-editor-add>div,.content-page-actions>.content-selection-tools,.content-layout-menu>div,.content-insert-between>div{position:absolute;z-index:30;display:flex;flex-direction:column;gap:2px;padding:6px;min-width:155px;background:#fff;border:1px solid #e2e3e7;border-radius:10px;box-shadow:0 7px 25px #19233015}.content-editor-add>div{top:100%;left:0}.content-editor-add button,.content-page-actions button,.content-insert-between button{justify-content:flex-start;text-align:left;font-size:12px}.content-editor-add>summary{font-size:11px;color:var(--edit-muted)}
.content-editor-workspace{display:grid;grid-template-columns:190px minmax(0,1fr);grid-template-rows:minmax(0,1fr);height:600px;min-height:380px}.content-editor-rail{min-width:0;min-height:0;display:flex;flex-direction:column;background:#f8f8fa;border-right:1px solid var(--edit-line)}.content-rail-toolbar{display:flex;align-items:center;justify-content:space-between;gap:5px;padding:9px 10px;font-size:11px;color:var(--edit-muted);font-variant-numeric:tabular-nums;flex:none}.content-rail-toolbar>div{display:flex;align-items:center;gap:1px}.content-rail-toolbar button{padding:6px;min-width:30px}.content-rail-scroll{overflow:auto;min-height:0;flex:1;padding:0 8px 14px;scrollbar-gutter:stable;overscroll-behavior:contain}.content-rail-item{position:relative;padding:4px 0;display:grid;grid-template-columns:minmax(0,1fr);align-items:start;gap:3px;border-radius:7px}.content-rail-item>input{display:none;appearance:auto;width:14px;height:14px;margin:12px 0 0;accent-color:var(--edit-blue);cursor:pointer}.is-multiselect .content-rail-item{grid-template-columns:16px minmax(0,1fr)}.is-multiselect .content-rail-item>input{display:block}.content-rail-item>button{display:block;width:100%;padding:6px;text-align:left;white-space:normal;border:1.5px solid transparent;border-radius:6px;background:transparent}.content-rail-item.is-active>button{border-color:#3785da;background:#fff}.content-rail-item.is-selected:not(.is-active)>button{background:#e7f0fc;border-color:#c4daf5}.content-rail-item[data-drop-before]::before,.content-rail-item[data-drop-after]::after{content:'';position:absolute;left:4px;right:4px;height:2px;background:var(--edit-blue);border-radius:2px}.content-rail-item[data-drop-before]::before{top:0}.content-rail-item[data-drop-after]::after{bottom:0}.content-rail-preview{height:82px;background:#fff;display:flex;align-items:center;justify-content:center;overflow:hidden;color:#8a8e94;border:1px solid #ebebee}.content-rail-preview img{max-width:100%;max-height:100%;width:auto;height:auto;object-fit:contain}.content-rail-preview img:not([src]){visibility:hidden}.content-rail-preview>svg{width:22px;height:22px}.content-rail-caption{display:flex;align-items:baseline;gap:6px;margin:6px 0 0;font-size:11px;line-height:1.45;font-weight:400}.content-rail-caption>span:first-child{color:var(--edit-muted);font-variant-numeric:tabular-nums}.content-rail-caption>span:nth-child(2){overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1;min-width:0}.content-rail-source{display:block;margin:3px 0 0;font:400 10px/1.4 inherit;color:var(--edit-muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.content-page-actions{border-top:1px solid var(--edit-line);flex:none;padding:4px 8px}.content-page-actions>summary{text-align:center;font-size:11px;color:var(--edit-muted)}.content-page-actions>.content-selection-tools{bottom:100%;left:6px;right:6px;min-width:155px}.content-selection-tools button{font-size:12px;padding:7px;min-height:32px}.content-selection-tools svg{width:16px!important;height:16px!important}
.content-editor-main{min-width:0;min-height:0;display:flex;flex-direction:column;background:#f2f3f5;overflow:hidden;position:relative}.content-layout-toolbar{flex:none;height:42px;padding:5px 22px;display:flex;align-items:center;justify-content:flex-end;background:transparent}.content-layout-label{font-size:11px;color:var(--edit-muted)}.content-layout-menu>summary{display:flex;align-items:center;gap:4px;font-size:12px}.content-layout-menu>summary svg{width:14px;height:14px}.content-layout-menu>div{top:100%;right:0}.content-layout-menu button{justify-content:flex-start;min-height:34px;padding:7px 10px;font-size:12px}.content-layout-menu button[aria-pressed=true]{background:#edf4fc;color:#0059ad}.content-layout-menu button svg{width:16px;height:16px}.content-editor-stage{flex:1;min-height:0;overflow:auto;padding:4px clamp(18px,3vw,54px) 24px;overscroll-behavior:contain;container-type:inline-size;container-name:content-edit-display}.content-stage-page{min-height:180px;max-width:1000px;margin:0 auto;padding:24px;background:#fff;display:grid;gap:22px;grid-template-columns:minmax(0,1fr);overflow-wrap:anywhere}.content-stage-images{display:grid;gap:16px;min-width:0}.content-stage-image-item{min-width:0}.content-stage-image{position:relative;min-width:0}.content-stage-image img{width:100%;height:auto;object-fit:contain;display:block}.content-stage-document-page{min-width:0;position:relative}.content-stage-document-page .courseware-viewer{margin:0;border:0;border-radius:0}.content-stage-document-page .courseware-footnote,.content-stage-document-page .courseware-name,.content-stage-document-page .courseware-navigation{display:none}.content-stage-document-page .courseware-toolbar{position:absolute;top:5px;right:5px;border:0;padding:2px;background:#fffffff0;border-radius:6px;z-index:2;opacity:0;transition:opacity .16s}.content-stage-document-page:hover .courseware-toolbar,.content-stage-document-page:focus-within .courseware-toolbar{opacity:1}.content-stage-document-page .courseware-stage{padding:0;background:#fff}.content-stage-unavailable{min-height:150px;background:#f5f5f7;display:flex;align-items:center;justify-content:center;padding:20px;text-align:center;font-size:13px;line-height:1.8;color:var(--edit-muted)}.content-image-tools{position:absolute;right:7px;bottom:7px;display:flex;gap:2px;padding:3px;background:#fffffff0;border-radius:7px;opacity:0;transition:opacity .16s}.content-stage-image:hover .content-image-tools,.content-stage-image:focus-within .content-image-tools{opacity:1}.content-image-tools button{font-size:11px;padding:5px}.content-stage-copy{display:flex;flex-direction:column;gap:14px;min-width:0}.content-editable{margin:0!important;min-width:0}.content-editable>[contenteditable]{min-height:1.8em;white-space:pre-wrap;font:400 16px/1.85 -apple-system,BlinkMacSystemFont,'PingFang SC','Shikong Sans SC','Helvetica Neue',sans-serif;letter-spacing:0;max-width:70ch;overflow-wrap:anywhere;outline-offset:5px;border-radius:2px}.content-editable>[contenteditable]:empty::before{content:attr(data-placeholder);color:#707279;pointer-events:none}.content-editable-heading>[contenteditable]{font-size:24px;font-weight:600;line-height:1.35;letter-spacing:-.02em}.content-editable-steps>[contenteditable]{line-height:2}.content-layout-text-top>.content-stage-copy{grid-row:1}.content-layout-image-left,.content-layout-image-right{grid-template-columns:minmax(0,1fr) minmax(0,1fr);align-items:start}.content-layout-image-right>.content-stage-images{grid-column:2;grid-row:1}.content-layout-image-right>.content-stage-copy{grid-column:1;grid-row:1}.content-layout-gallery>.content-stage-images{grid-template-columns:repeat(auto-fit,minmax(min(100%,220px),1fr))}.content-layout-gallery .content-editable-image,.content-layout-gallery .content-editable-page{margin-top:12px!important}.content-stage-file{display:flex;align-items:center;gap:12px;padding:14px 16px;background:#f5f6f8;border-radius:9px;font-size:13px;min-width:0}.content-stage-file>svg{width:22px;height:22px;flex:none}.content-stage-file>strong{overflow-wrap:anywhere;flex:1}.content-insert-between{display:table;margin:18px auto 0!important}.content-insert-between>summary{display:flex;align-items:center;justify-content:center;gap:6px;font-size:12px;color:var(--edit-muted)}.content-insert-between>summary svg{width:15px;height:15px}.content-insert-between>div{left:50%;top:100%;transform:translateX(-50%);margin-top:4px}.content-editor-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:350px;text-align:center;color:var(--edit-muted)}.content-editor-empty>svg{width:34px;height:34px;margin-bottom:16px}.content-editor-empty h4{font-size:17px;color:var(--edit-ink);font-weight:500;margin:0 0 9px}.content-editor-empty p{font-size:13px;margin:0 0 18px}.content-editor-empty [data-content-action=upload]{background:#202124;color:#fff;margin-right:8px;padding:9px 14px}
.content-editor-preview{position:absolute;inset:0;z-index:50;background:white;display:flex;flex-direction:column}.content-editor-preview>header{display:flex;justify-content:space-between;align-items:center;padding:15px 24px;border-bottom:1px solid var(--edit-line);font-size:14px;flex:none}.content-editor-preview [data-content-editor-preview-body]{overflow:auto;flex:1;padding:28px;overscroll-behavior:contain}.content-editor-preview .content-reader-layout{display:block}.content-editor-preview .content-reader-toc{display:none}.content-file-choice{position:absolute;z-index:55;inset:70px max(24px,10%) auto;padding:20px;background:#fff;border-radius:12px;border:1px solid var(--edit-line);max-height:70%;overflow:auto;font-size:14px}.content-file-choice>div:first-child{display:flex;align-items:center;justify-content:space-between}.content-file-options{display:flex;flex-direction:column;gap:3px;margin-top:12px}.content-file-options button{justify-content:flex-start;text-align:left;white-space:normal;overflow-wrap:anywhere;padding:12px;background:#f7f8fa}
.content-editor.is-focused{position:fixed;inset:0;z-index:2000;margin:0;border:0;border-radius:0;display:flex;flex-direction:column;isolation:isolate}.content-editor.is-focused .content-editor-workspace{flex:1;height:auto;min-height:0;grid-template-columns:190px minmax(0,1fr)}.content-editor.is-focused .content-editor-heading{display:none}.content-editor.is-focused [data-content-action=enter]{display:none}.content-editor.is-focused [data-content-action=exit]{display:inline-flex}.content-editor-focused{overflow:hidden}.content-editor [contenteditable=false]{cursor:wait}
@media(max-width:700px){.content-editor-toolbar{gap:6px;padding:7px 8px;min-height:54px;grid-template-columns:auto minmax(76px,1fr) auto}.content-history-actions{display:none}.content-editor-save-actions{gap:0}.content-editor [data-content-save-state]{display:none}.content-editor-save-actions button{padding:6px 8px;font-size:12px}.content-editor [data-content-action=enter]::after{content:''}.content-editor [data-content-action=exit]::after{content:''}.content-editor .content-page-position{gap:3px;font-size:11px}.content-editor .content-page-position input{width:32px;font-size:16px;padding:2px}.content-editor-workspace,.content-editor.is-focused .content-editor-workspace{grid-template-columns:88px minmax(0,1fr);height:560px}.content-rail-toolbar{padding:6px 3px;gap:1px;flex-wrap:wrap}.content-rail-toolbar>span{flex:1}.content-rail-toolbar button{min-width:28px;padding:4px}.content-editor-add>summary{padding:7px 4px;font-size:10px}.content-editor-add>div{left:auto;right:0}.content-rail-scroll{padding:0 3px 10px}.content-rail-item{gap:1px}.content-rail-item>button{padding:3px}.content-rail-preview{height:47px}.content-rail-caption{font-size:10px;gap:3px}.content-rail-caption>span:nth-child(2){max-width:48px}.content-rail-source{font-size:9px}.is-multiselect .content-rail-item{grid-template-columns:12px minmax(0,1fr)}.is-multiselect .content-rail-item>input{width:11px;height:11px}.content-page-actions{padding:3px}.content-page-actions>summary{padding:7px 2px;font-size:10px}.content-page-actions>.content-selection-tools{min-width:160px;left:3px}.content-editor-stage{padding:3px 10px 18px}.content-stage-page{padding:14px;gap:14px;min-height:180px}.content-editable>[contenteditable]{font-size:16px;line-height:1.8}.content-editable-heading>[contenteditable]{font-size:21px}.content-layout-toolbar{height:38px;padding:3px 12px}.content-layout-label{font-size:10px}.content-layout-menu>summary{font-size:11px;padding:5px}.content-layout-image-left,.content-layout-image-right{grid-template-columns:1fr}.content-layout-image-right>.content-stage-images,.content-layout-image-right>.content-stage-copy{grid-column:auto;grid-row:auto}.content-layout-gallery>.content-stage-images{grid-template-columns:repeat(auto-fit,minmax(min(100%,150px),1fr))}.content-image-tools{opacity:1;position:static;background:#f7f8fa;border-radius:0;justify-content:flex-end}.content-image-tools button{font-size:10px}.content-stage-document-page .courseware-toolbar{opacity:1}.content-editor-heading{padding:12px}.content-editor-heading h3{font-size:16px}.content-editor-heading p{font-size:11px}.content-editor-preview [data-content-editor-preview-body]{padding:20px 14px}.content-editor-preview>header{padding:12px}.content-file-choice{inset:60px 12px auto}.content-insert-between>summary{font-size:11px;padding:7px 4px}.content-file-choice{font-size:13px}}
@media(prefers-reduced-motion:reduce){.content-editor *{transition:none!important;scroll-behavior:auto!important}}

.content-detail-facts{max-width:960px;margin:44px auto;border-top:1px solid #e5e5ea;padding-top:24px}.content-detail-facts>summary{font-size:16px;font-weight:600;cursor:pointer}.community-post-full>.community-post-text{max-width:760px;margin:28px auto;font-size:17px;line-height:1.9}.community-post-full>.community-images,.community-post-full>.community-work-cards,.community-post-full>.community-disclosures,.community-post-full>.community-external,.community-post-full>footer{max-width:760px;margin-inline:auto}.community-post-full>.social-author-actions{justify-content:center}.community-content-title{font-size:clamp(24px,4vw,44px);line-height:1.2;letter-spacing:-.035em}.community-post-open .community-content-title{font-size:22px}.community-reading.content-detail{max-width:none}.community-reading.content-detail>.community-post-full{border:0;padding-inline:0;background:transparent}.community-post-full>.content-detail-hero{margin-bottom:36px}.community-content-preview{margin-block:24px}.community-content-preview>summary{cursor:pointer}.community-content-preview-header h2{font-size:24px}.community-editor :is(input[name=title],input[name=summary]){font-family:var(--font)}
body[data-variant=a]:has(#main .content-detail){background:#fff}.content-detail{background:#fff}.content-detail-hero>.status-chips{justify-content:center;margin-bottom:18px}.content-detail-meta{display:flex;justify-content:center;align-items:center;flex-wrap:wrap;gap:8px 16px;margin:24px auto 14px;font-size:13px;line-height:1.7;color:#646469}.community-post-full>.content-detail-hero{margin-top:10px;margin-bottom:36px}.content-detail-hero .social-author-actions{justify-content:center;margin-top:14px}


@container content-edit-display (max-width:700px){.content-layout-image-left,.content-layout-image-right{grid-template-columns:1fr}.content-layout-image-right>.content-stage-images,.content-layout-image-right>.content-stage-copy{grid-column:auto;grid-row:auto}.content-stage-page{gap:16px}.content-layout-gallery>.content-stage-images{grid-template-columns:repeat(auto-fit,minmax(min(100%,160px),1fr))}}

/* Host forms stack ordinary field labels; the editor's page jump is a compact
   toolbar control, including when the editor is mounted inside those forms. */
.content-editor .content-editor-toolbar label.content-page-position{display:flex;flex-direction:row;align-items:center;justify-content:center;gap:5px;margin:0;width:auto;font-size:12px;font-weight:400;line-height:1.5;white-space:nowrap}
.content-editor .content-editor-toolbar label.content-page-position input{display:block;flex:none;width:40px;min-height:30px;margin:0;padding:4px 2px;font-family:inherit;font-size:13px;line-height:1.5;border:1px solid transparent;border-radius:5px;background:#f6f6f8;text-align:center}
@media(max-width:700px){.content-editor .content-editor-toolbar label.content-page-position{gap:3px;font-size:11px}.content-editor .content-editor-toolbar label.content-page-position input{width:32px;min-height:30px;font-size:16px;padding:2px}}