diff --git a/src/renderer/src/components/SubjectInfo.vue b/src/renderer/src/components/SubjectInfo.vue
index ca5165e..4e3cc6e 100644
--- a/src/renderer/src/components/SubjectInfo.vue
+++ b/src/renderer/src/components/SubjectInfo.vue
@@ -1,50 +1,104 @@
 <template>
-  <div class="exam-info">
-    <h2>当前科目: {{ exam.name }}</h2>
-    <h2>考试时间: {{ formatDateTime(exam.start) }} ~ {{ formatDateTime(exam.end) }}</h2>
-    <h2>考试状态: {{ statusText }}</h2>
-  </div>
+  <v-card v-if="exam" class="mx-auto pa-4 subject-info-card" max-width="600" elevation="12">
+    <v-card-text>
+      <div class="text-h5">
+        当前科目:<span class="text-h5 ml-2">{{ exam.name }}</span>
+      </div>
+      <div class="text-h5">
+        考试时间: {{ formatDateTime(exam.start) }} ~ {{ formatDateTime(exam.end) }}
+      </div>
+      <div class="text-h5 mt-4">
+        考试状态: <span :class="statusColor">{{ statusText }}</span>
+      </div>
+      <div v-if="isWarning" class="text-h5 text--warning">考试即将结束</div>
+    </v-card-text>
+  </v-card>
+
+  <v-card v-else class="mx-auto pa-4 subject-info-card" max-width="600" elevation="12">
+    <v-card-title class="headline grey lighten-2"> 考试已结束 </v-card-title>
+  </v-card>
 </template>
 
-<script setup>
-import moment from 'moment';
+<script setup lang="ts">
+import { ref, computed } from 'vue';
 
+// Define props
 const props = defineProps({
   exam: {
-    type: Object,
-    required: true
+    type: Object as () => { name: string; start: string; end: string },
+    default: null
   }
 });
 
-const formatDateTime = (isoString) => moment(isoString).format('HH:mm');
+// Computed properties
+const formatDateTime = (isoString: string) =>
+  new Date(isoString).toLocaleTimeString([], {
+    hour: '2-digit',
+    minute: '2-digit'
+  });
+const now = ref(new Date());
 
 const statusColor = computed(() => {
-  const now = moment();
-  const start = moment(props.exam.start);
-  const end = moment(props.exam.end);
+  if (!props.exam) return '';
 
-  if (now.isBefore(start)) return 'running';
-  if (now.isBetween(start, end)) return 'success';
-  if (now.isAfter(end)) return 'error';
+  const start = new Date(props.exam.start);
+  const end = new Date(props.exam.end);
+
+  if (now.value < start) return 'status-before';
+  if (now.value >= start && now.value < end) return 'status-middle';
+  if (now.value >= end) return 'status-after';
 });
 
 const statusText = computed(() => {
-  const now = moment();
-  const start = moment(props.exam.start);
-  const end = moment(props.exam.end);
+  if (!props.exam) return '考试已结束';
 
-  if (now.isBefore(start)) return '未开始';
-  if (now.isBetween(start, end)) return '进行中';
-  if (now.isAfter(end)) return '已结束';
+  const start = new Date(props.exam.start);
+  const end = new Date(props.exam.end);
+
+  if (now.value < start) return '未开始';
+  if (now.value >= start && now.value < end) return '进行中';
+  if (now.value >= end) return '已结束';
 });
+
+const isWarning = computed(() => {
+  if (!props.exam) return false;
+
+  const end = new Date(props.exam.end);
+  const fifteenMinutesBeforeEnd = new Date(end.getTime() - 15 * 60 * 1000);
+
+  return now.value >= fifteenMinutesBeforeEnd && now.value < end;
+});
+
+// Update the current time every second
+const updateNow = () => {
+  now.value = new Date();
+};
+setInterval(updateNow, 1000);
+updateNow();
 </script>
 
 <style scoped>
+.text-h5 {
+  font-size: 2.5rem !important;
+}
 
-.exam-info-bar {
-  display: flex;
-  align-items: center;
-  justify-content: space-between;
-  font-size: 1.4em;
+.text--warning {
+  color: #ffc107 !important; /* Vuetify's default warning color */
+}
+
+.status-before {
+  color: orange;
+}
+
+.status-middle {
+  color: green;
+}
+
+.status-after {
+  color: red;
+}
+
+.subject-info-card {
+  margin-top: 20px;
 }
 </style>