设计系统所提供内容的总览。主题：signal。语言：简体中文。
组件无法成为的那些形状，因为它们包住的主体只有调用方知道：区块卡片、数据网格、展开菜单，以及外壳自身的框架。tokens.css 提供类名，应用自己写标记。下面的内容就是 ui.Styleguide 返回的那份示例，也是 ui 的测试拿来比对 tokens.css 的那一份。
链接不可点，示例源码另行提供。
带内边距的分节卡片，以及坐在它外面的那个标题。
rst-list 和 rst-card 故意没有内边距：它们装的是一串行，每行自己有内边距。把表单、段落、一排链接或任何不是行的东西直接塞进去，就会紧贴着边框渲染——文字碰到边缘就是那个信号。给任意内容用的有内边距卡片是 rst-box，它的标题是放在它前面的兄弟节点 rst-box-head。
<div rst-box-head><h2>Payout</h2><a rst-btn href="/payout/edit">Edit</a></div>
<section rst-box><p>Everything on a screen sits inside boxes.</p><div rst-box-foot>Last updated 2 hours ago</div></section>藏在页眉溢出菜单和列表工具栏筛选背后的 details/summary 菜单，外加一枚可移除的已应用筛选标签。
<details rst-dropdown name="rst-menus">
<summary>Filter<span rst-caret aria-hidden="true"><svg class="icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="m6 9 6 6 6-6"/></svg></span><span class="rst-sr-only">Filter orders: Paid</span></summary>
<div rst-dropdown-menu>
<a aria-current="true" href="/orders?status=paid">Paid</a>
<details rst-menu-group name="rst-menus-price" open><summary>Price</summary><div><a href="/orders?price=free">Free</a></div></details>
</div>
</details>
<span rst-ftok><span rst-ftok-k>Paid</span><a href="/orders" aria-label="Remove filter Paid">✕</a></span>给表单节奏感和保存栏的那些属性。没有片段会输出它们——它们包住调用方自己拼出来的一串字段。
<form rst-form-flow method="post" action="/settings">
<div rst-field>
<label rst-field-label for="name">Name</label>
<input rst-input type="text" id="name" name="name">
</div>
<div rst-field>
<label rst-field-label for="email">Email</label>
<input rst-input type="email" id="email" name="email">
</div>
<div rst-field-row>
<div class="rst-grow" rst-field>
<label rst-field-label for="city">City</label>
<input rst-input type="text" id="city" name="city">
</div>
<div rst-field>
<label rst-field-label for="zip">ZIP</label>
<input rst-input="short" type="text" id="zip" name="zip">
</div>
</div>
<div rst-form-bar>
<span rst-form-bar-note>Changes save immediately.</span>
<div rst-form-actions>
<a rst-btn href="/settings">Cancel</a>
<button rst-btn="primary" type="submit">Save</button>
</div>
</div>
</form>一个带边框的问号，链接到帮助文章。它的 CSS 提示只是装饰；链接自己带着完整句子的标签。
<a rst-help rst-tip href="/help/orders" target="_blank" rel="noopener" aria-label="Help: orders" data-tip="About orders"><svg class="icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><circle cx="12" cy="12" r="10"/><path d="M9.09 9a3 3 0 0 1 5.83 1c0 2-3 3-3 3"/><path d="M12 17h.01"/></svg></a>真正的数据表格语汇：卡片一次性定好列，行只负责挑单元格。
一个页面就是一列：page-header，然后 section-header + 卡片，再下一个 section-header + 卡片，按阅读顺序排下去。横向排列只留给自带它的写法：rst-box-head、rst-field-row、rst-lbar、rst-lrow 单元格、rst-seg-tabs。
<div rst-card style="--rst-cols: 2fr 110px 32px">
<div rst-lrow="head"><span>Order</span><span class="rst-m-hide">Status</span><span></span></div>
<div rst-lrow>
<a class="rst-nm" href="/orders/AB3PX"><bdi>Grace Hopper</bdi><small>AB3PX · <bdi>grace@example.com</bdi></small></a>
<span class="rst-m-hide rst-cell-mut">Paid</span>
<details rst-row-menu name="rst-menus"><summary aria-label="Actions for order AB3PX"><svg class="icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><circle cx="12" cy="12" r="1"/><circle cx="12" cy="5" r="1"/><circle cx="12" cy="19" r="1"/></svg></summary>
<div rst-row-menu-panel><a href="/orders/AB3PX">View</a><hr><button type="submit" class="rst-danger">Refund order…</button></div>
</details>
</div>
<p rst-no-match>No orders match. <a href="/orders">Clear filters</a></p>
</div>
<p rst-count-line>Displaying <strong>1–20</strong> of <strong>412</strong></p>模态框是它自己的一个网址，而不是客户端状态：下面的页面标记为 inert，面板浮在它上面，关闭是一个普通链接。
<div rst-backdrop inert>
<div rst-page><h1>Settings</h1></div>
</div>
<div rst-modal-overlay>
<dialog rst-modal-panel open aria-labelledby="modal-title">
<nav>
<a href="/settings/profile" aria-current="page">Profile</a>
<a href="/settings/billing">Billing</a>
<a href="/settings/notifications">Notifications</a>
</nav>
<section>
<a rst-modal-close href="/settings" aria-label="Close settings">✕</a>
<h2 id="modal-title">Profile</h2>
<p>Update the name and photo shown across the account.</p>
</section>
</dialog>
</div>到它真正属于的那个网址上去看它运行 (在新标签页中打开).
列表行在选择模式下佩戴的那个勾选框。它的标签会把这一行的身份再说一遍。
<label rst-selbox><input type="checkbox" aria-label="Select order AB3PX"></label>sidebar 外壳自己的框架，宽度小于 800px 时收起为一个 details 折叠块。
<div rst-shell-sidebar>
<a rst-skip href="#main">Skip to content</a>
<details rst-shell-chrome><summary><svg class="icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M4 12h16"/><path d="M4 6h16"/><path d="M4 18h16"/></svg>Menu</summary></details>
<aside rst-shell-rail><a rst-shell-brand href="/">Notes</a>
<nav rst-shell-nav><span rst-shell-group>Work</span><a href="/" aria-current="page">Dashboard</a><a href="/reports">Reports</a></nav>
</aside>
<main rst-shell-main id="main"><div rst-page>Content.</div></main>
</div>打开侧栏外壳演示，一个独立预览。 (在新标签页中打开).
顶栏外壳自身的框架，以标记形式呈现。Layout 把它作为一整套模板提供。
<div rst-shell-topbar>
<a rst-skip href="#main">Skip to content</a>
<header rst-shell-bar><a rst-shell-brand href="/">Notes</a>
<details rst-shell-menu name="rst-shell-menu"><summary><svg class="icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M4 12h16"/><path d="M4 6h16"/><path d="M4 18h16"/></svg>Menu</summary></details>
<div rst-shell-tail>
<nav rst-shell-nav><a href="/" aria-current="page">Home</a><a href="/archive">Archive</a></nav>
<details rst-dropdown rst-shell-account name="rst-menus"><summary>Account<span rst-caret aria-hidden="true"><svg class="icon" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="m6 9 6 6 6-6"/></svg></span></summary>
<div rst-dropdown-menu><a href="/settings">Settings</a></div></details>
</div>
</header>
<main rst-page id="main">Content.</main>
<footer rst-shell-foot>Made with rastrillo</footer>
</div>打开顶栏外壳演示，一个专门的预览。 (在新标签页中打开).
仪表板顶部的一排数字。
<div rst-stats>
<div rst-stat="lead"><span rst-stat-label>Revenue this month</span><span rst-stat-num>€48,210</span><span rst-stat-delta rst-tone="positive">+12%</span><span rst-stat-note>vs. last month</span></div>
<div rst-stat><span rst-stat-label>Orders today</span><span rst-stat-num>318</span></div>
<div rst-stat><span rst-stat-label>Average basket</span><span rst-stat-num>€41.20</span><span rst-stat-delta rst-tone="negative">−3%</span></div>
<div rst-stat><span rst-stat-label>Refunds</span><span rst-stat-num>7</span></div>
</div>一张带边框的卡片，只有在它的开关打开时才通过 :has() 显示内容。开关是权威；显示只是便利。
<div rst-tblock>
<label rst-tblock-head><input type="checkbox" name="notify" checked>
<span rst-switch-track aria-hidden="true"></span>
<span><span rst-tblock-title>Email notifications</span><span rst-tblock-desc>Sent for every reply to a thread you're in.</span></span>
</label>
<div rst-tblock-body>
<div rst-field>
<label rst-field-label for="notify-freq">Frequency</label>
<input rst-input type="text" id="notify-freq" name="notify_freq" value="Daily digest">
</div>
</div>
</div>