Privacy policies are long, complex, and rarely read, which limits their effectiveness in informed consent. We investigate scrollytelling, a scroll-driven narrative approach, as a privacy policy presentation format. We built a prototype that interleaves the full policy text with animated visuals to create a dynamic reading experience. In an online study (N=454), we compared our tool against text, two nutrition-label variants, and a standalone interactive visualization. Scrollytelling improved user experience over text, yielding higher engagement, lower cognitive load, greater willingness to adopt the format, and increased perceived clarity. It also matched other formats on comprehension accuracy and confidence, with only one nutrition-label variant performing slightly better. Changes in perceived understanding, transparency, and trust were small and statistically inconclusive. These findings suggest that scrollytelling can preserve comprehension while enhancing the experience of policy reading. We discuss design implications for accessible policy communication and identify directions for increasing transparency and user trust.

翻译：隐私政策通常冗长、复杂且鲜有人阅读，这限制了其在知情同意方面的有效性。本研究探讨了滚动叙事——一种基于滚动的叙事方法——作为隐私政策的呈现形式。我们构建了一个原型系统，将完整的政策文本与动态视觉元素交织，以创造沉浸式阅读体验。通过在线实验（N=454），我们将该工具与纯文本、两种营养标签变体及独立交互可视化进行了对比。滚动叙事在用户体验上显著优于纯文本，表现为更高的参与度、更低的认知负荷、更强的格式采纳意愿以及更优的感知清晰度。在理解准确度和信心维度上，其表现与其他格式相当，仅有一种营养标签变体略胜一筹。在感知理解度、透明度和信任度方面的改善幅度较小且统计不显著。这些发现表明，滚动叙事能在保持理解效果的同时提升政策阅读体验。我们讨论了可访问政策传播的设计启示，并指明了提升透明度与用户信任的研究方向。