// 注册所有自定义元素
    if ('customElements' in window) {
      customElements.define('z-wrap', class extends HTMLElement {});
      customElements.define('z-span', class extends HTMLElement {});
      customElements.define('z-strong', class extends HTMLElement {});
      customElements.define('z-space', class extends HTMLElement {});
      customElements.define('z-break', class extends HTMLElement {});
      
      // 注册噪声元素
      customElements.define('z-nil', class extends HTMLElement {});
      customElements.define('z-void', class extends HTMLElement {});
      customElements.define('z-null', class extends HTMLElement {});
      customElements.define('z-fake', class extends HTMLElement {});
      customElements.define('z-empty', class extends HTMLElement {});
      customElements.define('z-attr', class extends HTMLElement {});
      customElements.define('z-text', class extends HTMLElement {});
      customElements.define('z-hidden', class extends HTMLElement {});
    }