你可以通过设置以下的 CSS snippet 来调整嵌入块的样式 .internal-embed.is-loaded:not(.embedded-part):has(.markdown-source-view):before { content: ' '; width: 1px; position: absolute; height: 100%; top: 0; right: 0; background-color: var(--color-accent); transition: background-color 200ms ease-in-out, border-color 200ms ease-in-out, opacity 200ms ease-in-out; } .internal-embed.is-loaded:not(.embedded-part):has(.markdown-source-view):hover:before { width: 3px; transition: background-color 200ms ease-in-out, border-color 200ms ease-in-out, opacity 200ms ease-in-out; }