diff --git a/src/oj/problem/components/ProblemReaction.vue b/src/oj/problem/components/ProblemReaction.vue
index 531083d..83f9622 100644
--- a/src/oj/problem/components/ProblemReaction.vue
+++ b/src/oj/problem/components/ProblemReaction.vue
@@ -1,39 +1,6 @@
-<template>
-  <n-alert v-if="!userStore.isAuthed" type="error" title="请先登录" />
-  <div v-else>
-    <n-flex>
-      <n-tooltip
-        v-for="item in REACTIONS"
-        :key="item.key"
-        trigger="hover"
-        :disabled="solved"
-      >
-        <template #trigger>
-          <n-button
-            :type="mine === item.key ? 'primary' : 'tertiary'"
-            :secondary="mine === item.key"
-            :disabled="!solved || locked || !!submitting"
-            :loading="submitting === item.key"
-            @click="pick(item.key)"
-          >
-            <template #icon>
-              <Icon :icon="item.icon" :width="20" />
-            </template>
-            {{ item.label }}
-            <span v-if="counts">{{ counts[item.key] }}</span>
-          </n-button>
-        </template>
-        完成本题后可以评价
-      </n-tooltip>
-    </n-flex>
-    <n-text v-if="solved">
-      {{ locked ? "已评价，不能修改" : "选一个，点了直接提交，不能修改" }}
-    </n-text>
-  </div>
-</template>
-
 <script lang="ts" setup>
 import { Icon } from "@iconify/vue"
+import { useThemeVars } from "naive-ui"
 import { storeToRefs } from "pinia"
 import { getReaction, setReaction } from "oj/api"
 import { useProblemStore } from "oj/store/problem"
@@ -47,18 +14,84 @@ const userStore = useUserStore()
 const problemStore = useProblemStore()
 const { problem } = storeToRefs(problemStore)
 const message = useMessage()
+const theme = useThemeVars()
+const headingId = useId()
 
 const mine = ref<ReactionKey | null>(null)
 const counts = ref<ReactionCounts | null>(null)
-// 正在提交的那个 key，用来只给被点的按钮转圈
+const loading = ref(false)
+// 正在提交的 key，用来锁住整组并只在当前选项显示进度。
 const submitting = ref<ReactionKey | null>(null)
+let loadSequence = 0
 
 const solved = computed(() => problem.value?.my_status === 0)
-// 评价一次定终身：后端已存在记录就锁死，只剩查看
 const locked = computed(() => mine.value !== null)
+const selectedLabel = computed(
+  () => REACTIONS.find((item) => item.key === mine.value)?.label ?? "",
+)
+const totalCount = computed(() => {
+  if (!counts.value) return 0
+  return Object.values(counts.value).reduce((sum, count) => sum + count, 0)
+})
+
+const heading = computed(() => {
+  if (!solved.value) return "通关后，再回来聊聊这道题"
+  if (locked.value) return "你的第一印象，已经记下来了"
+  return "这道题给你什么感觉？"
+})
+
+const description = computed(() => {
+  if (!solved.value) return "先专注完成解题，判题通过后点评入口会自动开放。"
+  if (locked.value) return "看看大家的感受，也许你们对这道题有相同的判断。"
+  return "选出最贴切的一项，反馈会帮助老师继续优化题目。"
+})
+
+const state = computed(() => {
+  if (loading.value) return { icon: "ph:spinner-gap-bold", label: "读取中" }
+  if (submitting.value) return { icon: "ph:spinner-gap-bold", label: "记录中" }
+  if (!solved.value) return { icon: "ph:lock-key-bold", label: "完成后开放" }
+  if (locked.value) return { icon: "ph:check-circle-fill", label: "已提交" }
+  return { icon: "ph:cursor-click-bold", label: "等待选择" }
+})
+
+const statusText = computed(() => {
+  if (loading.value) return "正在读取点评记录"
+  if (!solved.value) return "判题结果通过后即可参与点评"
+  if (locked.value) return `你选择了「${selectedLabel.value}」`
+  if (submitting.value) return "正在记录你的点评"
+  return "点击即提交，点评提交后不能修改"
+})
+
+const reactionStyle = computed(() => ({
+  "--reaction-accent": theme.value.primaryColor,
+  "--reaction-accent-hover": theme.value.primaryColorHover,
+  "--reaction-accent-pressed": theme.value.primaryColorPressed,
+  "--reaction-card": theme.value.cardColor,
+  "--reaction-canvas": theme.value.bodyColor,
+  "--reaction-text": theme.value.textColor1,
+  "--reaction-text-muted": theme.value.textColor2,
+  "--reaction-text-faint": theme.value.textColor3,
+  "--reaction-divider": theme.value.dividerColor,
+  "--reaction-success": theme.value.successColor,
+}))
+
+function optionAriaLabel(key: ReactionKey, label: string) {
+  const count = counts.value?.[key]
+  const countText = count === undefined ? "" : `，${count} 人选择`
+  const selectedText = mine.value === key ? "，你的选择" : ""
+  return `${label}${countText}${selectedText}`
+}
 
 async function pick(key: ReactionKey) {
-  if (!problem.value) return
+  if (
+    !problem.value ||
+    !solved.value ||
+    locked.value ||
+    loading.value ||
+    submitting.value
+  )
+    return
+
   submitting.value = key
   try {
     const res = await setReaction(problem.value.id, key)
@@ -72,14 +105,490 @@ async function pick(key: ReactionKey) {
   }
 }
 
-async function load() {
-  if (!problem.value) return
-  const res = await getReaction(problem.value.id)
-  mine.value = res.data.mine
-  counts.value = res.data.counts
+async function load(problemId: number) {
+  const sequence = ++loadSequence
+  loading.value = true
+  try {
+    const res = await getReaction(problemId)
+    if (sequence !== loadSequence) return
+    mine.value = res.data.mine
+    counts.value = res.data.counts
+  } catch {
+    if (sequence === loadSequence) message.error("暂时无法读取题目点评")
+  } finally {
+    if (sequence === loadSequence) loading.value = false
+  }
 }
 
-onMounted(() => {
-  if (userStore.isAuthed) load()
-})
+watch(
+  [() => userStore.isAuthed, () => problem.value?.id],
+  ([isAuthed, problemId]) => {
+    mine.value = null
+    counts.value = null
+    submitting.value = null
+
+    if (!isAuthed || problemId === undefined) {
+      loadSequence += 1
+      loading.value = false
+      return
+    }
+    load(problemId)
+  },
+  { immediate: true },
+)
 </script>
+
+<template>
+  <section
+    class="reaction-panel"
+    :style="reactionStyle"
+    :aria-labelledby="headingId"
+  >
+    <header class="reaction-header">
+      <div class="reaction-heading">
+        <div class="reaction-kicker">
+          <span class="kicker-icon" aria-hidden="true">
+            <Icon icon="ph:chat-circle-text-fill" />
+          </span>
+          <span>题目点评</span>
+          <span v-if="counts" class="response-total">
+            {{ totalCount }} 次反馈
+          </span>
+        </div>
+        <h2 :id="headingId">{{ heading }}</h2>
+        <p>{{ description }}</p>
+      </div>
+
+      <div class="state-chip" :class="{ 'is-complete': locked }">
+        <Icon
+          :icon="state.icon"
+          :class="{ 'is-spinning': loading || !!submitting }"
+          aria-hidden="true"
+        />
+        <span>{{ state.label }}</span>
+      </div>
+    </header>
+
+    <div v-if="!userStore.isAuthed" class="signed-out-state">
+      <span class="signed-out-icon" aria-hidden="true">
+        <Icon icon="ph:user-circle-dashed" />
+      </span>
+      <div>
+        <strong>登录后参与点评</strong>
+        <p>完成题目后，你可以留下自己的第一印象。</p>
+      </div>
+    </div>
+
+    <template v-else>
+      <div
+        class="reaction-grid"
+        role="group"
+        aria-label="选择一项题目点评，点击后立即提交"
+        :aria-busy="loading || !!submitting"
+      >
+        <button
+          v-for="item in REACTIONS"
+          :key="item.key"
+          type="button"
+          class="reaction-option"
+          :class="{
+            'is-selected': mine === item.key,
+            'is-submitting': submitting === item.key,
+            'is-muted': locked && mine !== item.key,
+            'is-unavailable': !solved || loading,
+          }"
+          :disabled="!solved || locked || loading || !!submitting"
+          :aria-pressed="mine === item.key"
+          :aria-label="optionAriaLabel(item.key, item.label)"
+          @click="pick(item.key)"
+        >
+          <span class="option-icon" aria-hidden="true">
+            <Icon
+              :icon="
+                submitting === item.key
+                  ? 'svg-spinners:180-ring-with-bg'
+                  : item.icon
+              "
+            />
+          </span>
+
+          <span class="option-copy">
+            <span class="option-label">{{ item.label }}</span>
+            <span v-if="counts" class="option-count">
+              {{ counts[item.key] }} 人
+            </span>
+          </span>
+
+          <span
+            v-if="mine === item.key"
+            class="selected-mark"
+            aria-hidden="true"
+          >
+            <Icon icon="ph:check-bold" />
+          </span>
+        </button>
+      </div>
+
+      <footer class="reaction-status" aria-live="polite">
+        <Icon
+          :icon="
+            locked
+              ? 'ph:check-circle-bold'
+              : solved
+                ? 'ph:info-bold'
+                : 'ph:lock-simple-bold'
+          "
+          aria-hidden="true"
+        />
+        <span>{{ statusText }}</span>
+      </footer>
+    </template>
+  </section>
+</template>
+
+<style scoped>
+.reaction-panel {
+  width: min(100%, 880px);
+  box-sizing: border-box;
+  container-type: inline-size;
+  margin: clamp(16px, 3vw, 32px) auto;
+  padding: clamp(16px, 3.5vw, 32px);
+  color: var(--reaction-text);
+}
+
+.reaction-header {
+  display: flex;
+  align-items: flex-start;
+  justify-content: space-between;
+  gap: 24px;
+  margin-bottom: 24px;
+}
+
+.reaction-heading {
+  min-width: 0;
+}
+
+.reaction-kicker {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  margin-bottom: 12px;
+  color: var(--reaction-accent);
+  font-size: 13px;
+  font-weight: 650;
+}
+
+.kicker-icon {
+  display: grid;
+  width: 28px;
+  height: 28px;
+  place-items: center;
+  border-radius: 8px;
+  background: color-mix(in srgb, var(--reaction-accent) 12%, transparent);
+  font-size: 17px;
+}
+
+.response-total {
+  padding-left: 8px;
+  border-left: 1px solid var(--reaction-divider);
+  color: var(--reaction-text-faint);
+  font-weight: 500;
+  font-variant-numeric: tabular-nums;
+}
+
+.reaction-heading h2 {
+  margin: 0;
+  color: var(--reaction-text);
+  font-size: clamp(22px, 4.5cqi, 30px);
+  font-weight: 720;
+  line-height: 1.25;
+  text-wrap: balance;
+}
+
+.reaction-heading p {
+  max-width: 54ch;
+  margin: 9px 0 0;
+  color: var(--reaction-text-muted);
+  font-size: 14px;
+  line-height: 1.75;
+  text-wrap: pretty;
+}
+
+.state-chip {
+  display: inline-flex;
+  min-height: 32px;
+  flex: 0 0 auto;
+  align-items: center;
+  gap: 6px;
+  box-sizing: border-box;
+  padding: 6px 10px;
+  border-radius: 8px;
+  background: color-mix(in srgb, var(--reaction-text-faint) 8%, transparent);
+  color: var(--reaction-text-muted);
+  font-size: 12px;
+  font-weight: 600;
+}
+
+.state-chip.is-complete {
+  background: color-mix(in srgb, var(--reaction-success) 12%, transparent);
+  color: var(--reaction-success);
+}
+
+.state-chip svg {
+  font-size: 15px;
+}
+
+.reaction-grid {
+  display: grid;
+  grid-template-columns: repeat(2, minmax(0, 1fr));
+  gap: 10px;
+}
+
+.reaction-option {
+  position: relative;
+  display: flex;
+  min-width: 0;
+  min-height: 82px;
+  align-items: center;
+  gap: 11px;
+  box-sizing: border-box;
+  padding: 14px;
+  overflow: hidden;
+  border: 0;
+  border-radius: 12px;
+  background: var(--reaction-card);
+  box-shadow:
+    inset 0 0 0 1px var(--reaction-divider),
+    0 1px 3px rgba(15, 23, 42, 0.1);
+  color: var(--reaction-text);
+  font: inherit;
+  text-align: left;
+  touch-action: manipulation;
+  cursor: pointer;
+  transition-property: transform, box-shadow, background-color, opacity;
+  transition-duration: 140ms;
+  transition-timing-function: cubic-bezier(0.16, 1, 0.3, 1);
+}
+
+.reaction-option:focus-visible {
+  outline: 3px solid color-mix(in srgb, var(--reaction-accent) 36%, transparent);
+  outline-offset: 2px;
+}
+
+.reaction-option:active:not(:disabled) {
+  transform: scale(0.97);
+  background: color-mix(
+    in srgb,
+    var(--reaction-accent-pressed) 7%,
+    var(--reaction-card)
+  );
+}
+
+.reaction-option:disabled {
+  cursor: not-allowed;
+}
+
+.reaction-option.is-unavailable {
+  opacity: 0.58;
+}
+
+.reaction-option.is-muted {
+  opacity: 0.48;
+}
+
+.reaction-option.is-selected {
+  background: color-mix(
+    in srgb,
+    var(--reaction-accent) 10%,
+    var(--reaction-card)
+  );
+  box-shadow:
+    inset 0 0 0 2px var(--reaction-accent),
+    0 5px 16px color-mix(in srgb, var(--reaction-accent) 15%, transparent);
+  opacity: 1;
+}
+
+.reaction-option.is-submitting {
+  background: color-mix(
+    in srgb,
+    var(--reaction-accent) 8%,
+    var(--reaction-card)
+  );
+  box-shadow: inset 0 0 0 2px var(--reaction-accent);
+  opacity: 1;
+}
+
+.option-icon {
+  display: grid;
+  width: 42px;
+  height: 42px;
+  flex: 0 0 42px;
+  place-items: center;
+  border-radius: 10px;
+  background: var(--reaction-canvas);
+  box-shadow: inset 0 0 0 1px
+    color-mix(in srgb, var(--reaction-divider) 70%, transparent);
+  font-size: 27px;
+}
+
+.option-icon svg {
+  width: 27px;
+  height: 27px;
+}
+
+.option-copy {
+  display: flex;
+  min-width: 0;
+  flex: 1;
+  flex-direction: column;
+  gap: 3px;
+}
+
+.option-label {
+  overflow: hidden;
+  font-size: 14px;
+  font-weight: 650;
+  line-height: 1.35;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.option-count {
+  color: var(--reaction-text-faint);
+  font-size: 12px;
+  font-variant-numeric: tabular-nums;
+  line-height: 1.4;
+}
+
+.selected-mark {
+  position: absolute;
+  top: 8px;
+  right: 8px;
+  display: grid;
+  width: 20px;
+  height: 20px;
+  place-items: center;
+  border-radius: 50%;
+  background: var(--reaction-accent);
+  color: var(--reaction-card);
+  font-size: 12px;
+}
+
+.reaction-status {
+  display: flex;
+  min-height: 24px;
+  align-items: center;
+  gap: 7px;
+  margin-top: 16px;
+  color: var(--reaction-text-faint);
+  font-size: 12px;
+  line-height: 1.6;
+}
+
+.reaction-status svg {
+  flex: 0 0 auto;
+  font-size: 15px;
+}
+
+.signed-out-state {
+  display: flex;
+  min-height: 128px;
+  align-items: center;
+  gap: 16px;
+  box-sizing: border-box;
+  padding: 22px;
+  border-radius: 12px;
+  background: color-mix(
+    in srgb,
+    var(--reaction-text-faint) 6%,
+    var(--reaction-card)
+  );
+  box-shadow: inset 0 0 0 1px var(--reaction-divider);
+}
+
+.signed-out-icon {
+  display: grid;
+  width: 48px;
+  height: 48px;
+  flex: 0 0 48px;
+  place-items: center;
+  border-radius: 12px;
+  background: var(--reaction-canvas);
+  color: var(--reaction-text-muted);
+  font-size: 28px;
+}
+
+.signed-out-state strong {
+  display: block;
+  margin-bottom: 4px;
+  color: var(--reaction-text);
+  font-size: 15px;
+}
+
+.signed-out-state p {
+  margin: 0;
+  color: var(--reaction-text-muted);
+  font-size: 13px;
+  line-height: 1.7;
+}
+
+.is-spinning {
+  animation: reaction-spin 850ms linear infinite;
+}
+
+@media (hover: hover) {
+  .reaction-option:hover:not(:disabled) {
+    transform: translateY(-2px);
+    background: color-mix(
+      in srgb,
+      var(--reaction-accent-hover) 6%,
+      var(--reaction-card)
+    );
+    box-shadow:
+      inset 0 0 0 1px
+        color-mix(in srgb, var(--reaction-accent) 55%, var(--reaction-divider)),
+      0 7px 18px rgba(15, 23, 42, 0.12);
+  }
+}
+
+@container (min-width: 480px) {
+  .reaction-grid {
+    grid-template-columns: repeat(4, minmax(0, 1fr));
+  }
+
+  .reaction-option {
+    min-height: 116px;
+    flex-direction: column;
+    align-items: flex-start;
+    justify-content: space-between;
+    gap: 10px;
+  }
+}
+
+@container (max-width: 440px) {
+  .reaction-header {
+    flex-direction: column;
+    gap: 14px;
+  }
+
+  .state-chip {
+    align-self: flex-start;
+  }
+}
+
+@media (prefers-reduced-motion: reduce) {
+  .reaction-option {
+    transition-duration: 0.01ms;
+  }
+
+  .is-spinning {
+    animation-duration: 1.8s;
+  }
+}
+
+@keyframes reaction-spin {
+  to {
+    transform: rotate(360deg);
+  }
+}
+</style>