diff --git a/src/pages/exam.astro b/src/pages/exam.astro
index a557ec0..e5593dd 100644
--- a/src/pages/exam.astro
+++ b/src/pages/exam.astro
@@ -69,29 +69,7 @@ let questionNumber = 0;
         <h1>{examIntro.title}</h1>
         <p>{examIntro.description}</p>
         <div class="hero-actions">
-          <a class="button primary" href={examIntro.previewHref}>预览原卷</a>
-          <a class="button primary" href={examIntro.downloadHref} download>下载原卷</a>
-          <a class="button" href="#paper">阅读试卷</a>
-        </div>
-      </div>
-    </section>
-
-    <section class="exam-preview-band" id="original-paper" aria-labelledby="original-paper-title">
-      <div class="section-inner">
-        <div class="exam-preview-head">
-          <div>
-            <p class="eyebrow">Original Paper</p>
-            <h2 id="original-paper-title">原卷预览</h2>
-          </div>
-          <a class="button" href={examIntro.downloadHref} target="_blank" rel="noreferrer">打开原卷</a>
-        </div>
-        <div class="exam-preview-frame">
-          <iframe src={examIntro.downloadHref} title="原卷预览" loading="lazy"></iframe>
-          <p>
-            如果预览没有显示，可以
-            <a href={examIntro.downloadHref} target="_blank" rel="noreferrer">打开原卷</a>
-            查看。
-          </p>
+          <a class="button primary" href={examIntro.previewHref} target="_blank" rel="noreferrer">预览原卷</a>
         </div>
       </div>
     </section>
diff --git a/src/styles/global.css b/src/styles/global.css
index 62e492b..51898f9 100644
--- a/src/styles/global.css
+++ b/src/styles/global.css
@@ -844,53 +844,6 @@ h2 {
   font-weight: 800;
 }
 
-.exam-preview-band {
-  background: var(--paper);
-}
-
-.exam-preview-head {
-  display: flex;
-  justify-content: space-between;
-  gap: 18px;
-  align-items: end;
-  margin-bottom: 18px;
-}
-
-.exam-preview-head h2 {
-  margin: 0;
-  color: var(--ink);
-  font-size: clamp(28px, 4vw, 42px);
-}
-
-.exam-preview-frame {
-  overflow: hidden;
-  border: 1px solid var(--line);
-  border-radius: 8px;
-  background: #fffef9;
-  box-shadow: var(--shadow);
-}
-
-.exam-preview-frame iframe {
-  width: 100%;
-  height: min(78vh, 820px);
-  display: block;
-  border: 0;
-  background: #fff;
-}
-
-.exam-preview-frame p {
-  margin: 0;
-  padding: 12px 16px;
-  border-top: 1px solid var(--line);
-  color: var(--muted);
-  font-size: 14px;
-}
-
-.exam-preview-frame a {
-  color: var(--green);
-  font-weight: 800;
-}
-
 .exam-band {
   background:
     linear-gradient(0deg, rgba(244, 247, 238, 0.7), rgba(244, 247, 238, 0.7)),
@@ -1924,15 +1877,6 @@ h2 {
     padding-right: 0;
   }
 
-  .exam-preview-head {
-    display: grid;
-    align-items: start;
-  }
-
-  .exam-preview-head .button {
-    justify-self: start;
-  }
-
   .score-fab {
     position: fixed;
     right: 18px;