diff --git a/src/admin/problem/detail.vue b/src/admin/problem/detail.vue
index d914f7d..ef402b1 100644
--- a/src/admin/problem/detail.vue
+++ b/src/admin/problem/detail.vue
@@ -510,7 +510,7 @@ watch(
   <n-grid :cols="2" x-gap="20">
     <n-gi>
       <n-form>
-        <n-form-item label="本题参考答案（用于 AI 分析，不会泄露）">
+        <n-form-item label="本题参考答案（选填，用于 AI 分析，不会泄露）">
           <n-tabs
             type="segment"
             default-value="Python3"
diff --git a/src/oj/contest/list.vue b/src/oj/contest/list.vue
index 321ad53..6a145b5 100644
--- a/src/oj/contest/list.vue
+++ b/src/oj/contest/list.vue
@@ -134,7 +134,7 @@ function rowProps(row: Contest) {
       <n-form :show-feedback="false" label-placement="left" inline>
         <n-form-item label="比赛状态">
           <n-select
-            class="select"
+            style="width: 120px"
             :options="options"
             v-model:value="query.status"
           />
@@ -146,7 +146,7 @@ function rowProps(row: Contest) {
       <n-form :show-feedback="false" label-placement="left" inline>
         <n-form-item>
           <n-input
-            class="input"
+            style="width: 200px"
             clearable
             v-model:value="query.keyword"
             placeholder="比赛标题"
@@ -173,13 +173,3 @@ function rowProps(row: Contest) {
     :total="total"
   />
 </template>
-
-<style scoped>
-.select {
-  width: 120px;
-}
-
-.input {
-  width: 200px;
-}
-</style>
diff --git a/src/oj/problem/components/Form.vue b/src/oj/problem/components/Form.vue
index 6fd831a..70d362e 100644
--- a/src/oj/problem/components/Form.vue
+++ b/src/oj/problem/components/Form.vue
@@ -10,6 +10,7 @@ import storage from "~/utils/storage"
 import { LANGUAGE } from "~/utils/types"
 import Submit from "./Submit.vue"
 import StatisticsPanel from "~/shared/components/StatisticsPanel.vue"
+import {Icon} from "@iconify/vue"
 
 interface Props {
   storageKey: string
@@ -144,8 +145,10 @@ function showStatisticsPanel() {
       <n-dropdown size="large" :options="menu" @select="select">
         <n-button :size="isDesktop ? 'medium' : 'small'">操作</n-button>
       </n-dropdown>
-      <n-button v-if="isDesktop && userStore.isSuperAdmin" @click="goEdit">
-        编辑
+      <n-button circle v-if="isDesktop && userStore.isSuperAdmin" @click="goEdit">
+        <template #icon>
+          <Icon icon="streamline-ultimate-color:file-code-edit" />
+        </template>
       </n-button>
     </n-flex>
   </n-flex>
diff --git a/src/oj/problem/components/ProblemInfo.vue b/src/oj/problem/components/ProblemInfo.vue
index d789e38..ce42269 100644
--- a/src/oj/problem/components/ProblemInfo.vue
+++ b/src/oj/problem/components/ProblemInfo.vue
@@ -109,7 +109,7 @@ onMounted(getBeatRate)
     <n-gi v-for="item in numbers" :key="item.content">
       <n-card hoverable>
         <n-flex align="center">
-          <Icon :icon="item.icon" width="40" />
+          <Icon v-if="isDesktop" :icon="item.icon" width="40" />
           <div>
             <n-h2 class="number">
               <n-number-animation
diff --git a/src/oj/submission/components/ButtonWithSearch.vue b/src/oj/submission/components/ButtonWithSearch.vue
index 0cfbbf8..b80b254 100644
--- a/src/oj/submission/components/ButtonWithSearch.vue
+++ b/src/oj/submission/components/ButtonWithSearch.vue
@@ -1,15 +1,48 @@
 <script lang="ts" setup>
 import { Icon } from "@iconify/vue"
 
-defineEmits(["click", "search"])
+interface Props {
+  type: "题目" | "用户"
+  username?: string
+}
+
+const props = defineProps<Props>()
+
+const emits = defineEmits(["click", "search", "filterClass"])
+
+const showFilterClass = computed(() => {
+  return props.type === "用户" && props.username?.startsWith("ks")
+})
+
+function filterClass() {
+  const match = props.username!.match(/^ks\d{3,4}/)
+  const classname = match ? match[0] : ""
+  if (!classname) return
+  emits("filterClass", classname)
+}
 </script>
 <template>
   <n-flex align="center">
     <n-button text type="info" @click="$emit('click')"><slot></slot></n-button>
-    <n-button text @click="$emit('search')">
-      <template #icon>
-        <Icon icon="streamline-emojis:magnifying-glass-tilted-left"></Icon>
+    <n-tooltip>
+      <template #trigger>
+        <n-button text @click="$emit('search')">
+          <template #icon>
+            <Icon icon="streamline-emojis:magnifying-glass-tilted-left"></Icon>
+          </template>
+        </n-button>
       </template>
-    </n-button>
+      {{ "搜索" + props.type}}
+    </n-tooltip>
+    <n-tooltip v-if="showFilterClass">
+      <template #trigger>
+        <n-button text @click="filterClass">
+          <template #icon>
+            <Icon icon="openmoji:filter"></Icon>
+          </template>
+        </n-button>
+      </template>
+      筛选班级
+    </n-tooltip>
   </n-flex>
 </template>
diff --git a/src/oj/submission/components/SubmissionLink.vue b/src/oj/submission/components/SubmissionLink.vue
index 3d69d86..4c32836 100644
--- a/src/oj/submission/components/SubmissionLink.vue
+++ b/src/oj/submission/components/SubmissionLink.vue
@@ -3,11 +3,16 @@
     <n-button text type="info" @click="$emit('showCode')">
       {{ props.submission.id.slice(0, 12) }}
     </n-button>
-    <n-button text @click="goto">
-      <template #icon>
-        <Icon icon="streamline-emojis:backhand-index-pointing-right-1"></Icon>
+    <n-tooltip>
+      <template #trigger>
+        <n-button text @click="goto">
+          <template #icon>
+            <Icon icon="catppuccin:folder-debug"></Icon>
+          </template>
+        </n-button>
       </template>
-    </n-button>
+      查看测试详情
+    </n-tooltip>
   </n-flex>
   <span v-else>
     {{ props.submission.id.slice(0, 12) }}
diff --git a/src/oj/submission/list.vue b/src/oj/submission/list.vue
index 15294ea..61f4947 100644
--- a/src/oj/submission/list.vue
+++ b/src/oj/submission/list.vue
@@ -6,7 +6,7 @@ import { parseTime } from "utils/functions"
 import { LANGUAGE, SubmissionListItem } from "utils/types"
 import Pagination from "~/shared/components/Pagination.vue"
 import SubmissionResultTag from "~/shared/components/SubmissionResultTag.vue"
-import { isDesktop } from "~/shared/composables/breakpoints"
+import { isDesktop, isMobile } from "~/shared/composables/breakpoints"
 import { usePagination } from "~/shared/composables/pagination"
 import { useUserStore } from "~/shared/store/user"
 import { LANGUAGE_SHOW_VALUE } from "~/utils/constants"
@@ -15,6 +15,7 @@ import ButtonWithSearch from "./components/ButtonWithSearch.vue"
 import StatisticsPanel from "~/shared/components/StatisticsPanel.vue"
 import SubmissionLink from "./components/SubmissionLink.vue"
 import SubmissionDetail from "./detail.vue"
+import { Icon } from "@iconify/vue"
 
 interface SubmissionQuery {
   username: string
@@ -180,6 +181,7 @@ const columns = computed(() => {
         h(
           ButtonWithSearch,
           {
+            type: "题目",
             onClick: () => problemClicked(row),
             onSearch: () => (query.problem = row.problem),
           },
@@ -206,8 +208,11 @@ const columns = computed(() => {
         h(
           ButtonWithSearch,
           {
+            type: "用户",
+            username: row.username,
             onClick: () => window.open("/user?name=" + row.username, "_blank"),
             onSearch: () => (query.username = row.username),
+            onFilterClass: (classname: string) => (query.username = classname),
           },
           () => row.username,
         ),
@@ -237,6 +242,13 @@ const columns = computed(() => {
   <n-flex vertical size="large">
     <n-space>
       <n-form :show-feedback="false" inline label-placement="left">
+        <n-form-item v-if="isDesktop && userStore.isAuthed" label="只看自己">
+          <n-switch
+            v-model:value="query.myself"
+            checked-value="1"
+            unchecked-value="0"
+          />
+        </n-form-item>
         <n-form-item label="提交状态">
           <n-select
             class="select"
@@ -269,27 +281,31 @@ const columns = computed(() => {
             placeholder="题号"
           />
         </n-form-item>
-        <n-form-item v-if="userStore.isAuthed" label="只看自己">
+      </n-form>
+      <n-form :show-feedback="false" inline label-placement="left">
+        <n-form-item v-if="isMobile && userStore.isAuthed" label="只看自己">
           <n-switch
             v-model:value="query.myself"
             checked-value="1"
             unchecked-value="0"
           />
         </n-form-item>
-      </n-form>
-      <n-form :show-feedback="false" inline label-placement="left">
         <n-form-item>
           <n-button @click="search(query.username, query.problem)">
             搜索
           </n-button>
         </n-form-item>
+        <n-form-item>
+          <n-button @click="clear" quaternary>重置</n-button>
+        </n-form-item>
         <n-form-item
           v-if="userStore.isSuperAdmin && route.name === 'submissions'"
         >
-          <n-button @click="toggleStatisticPanel(true)">数据统计</n-button>
-        </n-form-item>
-        <n-form-item>
-          <n-button @click="clear" quaternary>重置</n-button>
+          <n-button circle @click="toggleStatisticPanel(true)">
+            <template #icon>
+              <Icon icon="streamline-emojis:bar-chart" />
+            </template>
+          </n-button>
         </n-form-item>
         <n-form-item v-if="todayCount > 0">
           <component :is="isDesktop ? NH2 : NText" class="todayCount">