diff --git a/web/src/components/PlanSection.vue b/web/src/components/PlanSection.vue
index a300538..4aa2dd7 100644
--- a/web/src/components/PlanSection.vue
+++ b/web/src/components/PlanSection.vue
@@ -14,9 +14,6 @@ const emit = defineEmits<{
 }>()
 
 const expandedSteps = ref<Set<number>>(new Set())
-const expandedArtifact = ref<{ stepOrder: number; path: string } | null>(null)
-const artifactContent = ref<string>('')
-const artifactLoading = ref(false)
 
 function toggleStep(order: number) {
   if (expandedSteps.value.has(order)) {
@@ -48,31 +45,9 @@ function artifactIcon(type: string) {
   }
 }
 
-async function toggleArtifact(e: Event, stepOrder: number, path: string) {
+function openArtifact(e: Event, path: string) {
   e.stopPropagation()
-  if (expandedArtifact.value?.stepOrder === stepOrder && expandedArtifact.value?.path === path) {
-    expandedArtifact.value = null
-    return
-  }
-  expandedArtifact.value = { stepOrder, path }
-  artifactLoading.value = true
-  artifactContent.value = ''
-  try {
-    const res = await fetch(`${BASE}/projects/${props.projectId}/files/${path}`)
-    if (res.ok) {
-      artifactContent.value = await res.text()
-    } else {
-      artifactContent.value = `Error: ${res.status} ${res.statusText}`
-    }
-  } catch (err) {
-    artifactContent.value = `Error: ${err}`
-  } finally {
-    artifactLoading.value = false
-  }
-}
-
-function isArtifactExpanded(stepOrder: number, path: string) {
-  return expandedArtifact.value?.stepOrder === stepOrder && expandedArtifact.value?.path === path
+  window.open(`${BASE}/projects/${props.projectId}/files/${path}`, '_blank')
 }
 </script>
 
@@ -105,20 +80,12 @@ function isArtifactExpanded(stepOrder: number, path: string) {
             v-for="a in step.artifacts"
             :key="a.path"
             class="artifact-tag"
-            :class="{ active: isArtifactExpanded(step.order, a.path) }"
-            @click="toggleArtifact($event, step.order, a.path)"
+            @click="openArtifact($event, a.path)"
             :title="a.description || a.path"
           >
             <span class="artifact-icon">{{ artifactIcon(a.artifact_type) }}</span>
             <span class="artifact-name">{{ a.name }}</span>
           </button>
-          <div
-            v-if="expandedArtifact && step.artifacts.some(a => isArtifactExpanded(step.order, a.path))"
-            class="artifact-content"
-          >
-            <div v-if="artifactLoading" class="artifact-loading">加载中...</div>
-            <pre v-else>{{ artifactContent }}</pre>
-          </div>
         </div>
       </div>
       <div v-if="!steps.length" class="empty-state">
@@ -275,12 +242,6 @@ function isArtifactExpanded(stepOrder: number, path: string) {
   color: var(--accent);
 }
 
-.artifact-tag.active {
-  border-color: var(--accent);
-  background: rgba(79, 195, 247, 0.12);
-  color: var(--accent);
-}
-
 .artifact-icon {
   font-size: 10px;
   font-weight: 600;
@@ -291,35 +252,6 @@ function isArtifactExpanded(stepOrder: number, path: string) {
   font-weight: 500;
 }
 
-.artifact-content {
-  width: 100%;
-  margin-top: 4px;
-  border-radius: 4px;
-  background: var(--bg-card);
-  border: 1px solid var(--border);
-  overflow: hidden;
-}
-
-.artifact-content pre {
-  margin: 0;
-  padding: 8px 12px;
-  font-size: 11px;
-  line-height: 1.5;
-  color: var(--text-primary);
-  overflow-x: auto;
-  max-height: 400px;
-  overflow-y: auto;
-  white-space: pre-wrap;
-  word-break: break-all;
-}
-
-.artifact-loading {
-  padding: 12px;
-  text-align: center;
-  color: var(--text-secondary);
-  font-size: 12px;
-}
-
 .empty-state {
   color: var(--text-secondary);
   font-size: 13px;