refactor(achievement): 稀有度配色收进 constants，文字色适配浅色模式

四份重复的 RARITY_COLOR / RARITY_LABEL 合并到 utils/constants。
拆成两套：边框色块继续用饱和的原色，文字改走 useRarityColor，
按明暗主题切换，两套都压到 4.5:1 以上——原色是照深色底调的，
白底上白金只有 1.7:1、黄金 2.2:1，卡片上的稀有度 tag 看不清。

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

src/admin/achievement/components/AchievementModal.vue

@@ -7,6 +7,12 @@ import {
   type MetricOption,
 } from "admin/api"
 import AchievementIcon from "shared/components/AchievementIcon.vue"
+import { RARITY_LABEL } from "utils/constants"
+
+const rarityOptions = Object.entries(RARITY_LABEL).map(([value, label]) => ({
+  label,
+  value,
+}))
 
 const props = defineProps<{
   show: boolean
@@ -118,15 +124,7 @@ async function save() {
         </n-flex>
       </n-form-item>
       <n-form-item label="稀有度">
-        <n-select
-          v-model:value="form.rarity"
-          :options="[
-            { label: '青铜', value: 'bronze' },
-            { label: '白银', value: 'silver' },
-            { label: '黄金', value: 'gold' },
-            { label: '白金', value: 'platinum' },
-          ]"
-        />
+        <n-select v-model:value="form.rarity" :options="rarityOptions" />
       </n-form-item>
       <n-form-item label="指标" required>
         <n-select

src/admin/achievement/list.vue

@@ -7,6 +7,7 @@ import {
 } from "admin/api"
 import AchievementIcon from "shared/components/AchievementIcon.vue"
 import AchievementModal from "./components/AchievementModal.vue"
+import { RARITY_LABEL } from "utils/constants"
 
 const message = useMessage()
 const dialog = useDialog()
@@ -16,13 +17,6 @@ const loading = ref(false)
 const showModal = ref(false)
 const editing = ref<AdminAchievement | null>(null)
 
-const RARITY_LABEL: Record<string, string> = {
-  bronze: "青铜",
-  silver: "白银",
-  gold: "黄金",
-  platinum: "白金",
-}
-
 // 下架的只在有的时候才提，全部上架时标题不啰嗦
 const title = computed(() => {
   if (!list.value.length) return "成就管理"

src/oj/achievement/components/AchievementCard.vue

@@ -1,22 +1,13 @@
 <script setup lang="ts">
 import AchievementIcon from "shared/components/AchievementIcon.vue"
+import { useRarityColor } from "shared/composables/rarity"
+import { RARITY_COLOR, RARITY_LABEL } from "utils/constants"
 import type { Achievement } from "utils/types"
 
 const props = defineProps<{ achievement: Achievement }>()
 
-const RARITY_COLOR: Record<string, string> = {
-  bronze: "#b87333",
-  silver: "#9fa6b2",
-  gold: "#e0a300",
-  platinum: "#7dd3fc",
-}
-
-const RARITY_LABEL: Record<string, string> = {
-  bronze: "青铜",
-  silver: "白银",
-  gold: "黄金",
-  platinum: "白金",
-}
+// 边框用原色，tag 里的文字用跟主题走的那套
+const rarityTextColor = useRarityColor()
 
 // 隐藏且未解锁：后端已把名称/描述/图标和条件三件套都遮成 ??? 和 null，
 // 这里只负责不要把 null 渲染出来，也不要画出会泄露门槛的进度条
@@ -78,7 +69,7 @@ const unlockDate = computed(() => {
             size="tiny"
             :color="{
               borderColor: RARITY_COLOR[achievement.rarity],
-              textColor: RARITY_COLOR[achievement.rarity],
+              textColor: rarityTextColor[achievement.rarity],
             }"
           >
             {{ RARITY_LABEL[achievement.rarity] }}

src/oj/achievement/index.vue

@@ -1,6 +1,7 @@
 <script setup lang="ts">
 import { getAchievements, getAchievementSummary } from "oj/achievement/api"
 import { getUserBadges } from "oj/api"
+import { useRarityColor } from "shared/composables/rarity"
 import type { Achievement, AchievementSummary } from "utils/types"
 import AchievementCard from "./components/AchievementCard.vue"
 
@@ -18,6 +19,9 @@ interface UserBadge {
 const route = useRoute()
 const name = computed(() => (route.query.name as string) || undefined)
 
+// 标签和进度条同色，整行读作一个单位
+const rarityColor = useRarityColor()
+
 const achievements = ref<Achievement[]>([])
 const summary = ref<AchievementSummary | null>(null)
 const badges = ref<UserBadge[]>([])
@@ -59,19 +63,44 @@ watch(name, load)
       <n-card v-if="summary" class="overview">
         <div class="overview-row">
           <div class="percent">
-            <div class="big">{{ summary.percent }}%</div>
+            <n-progress
+              type="circle"
+              :percentage="summary.percent"
+              :stroke-width="8"
+            >
+              <div class="ring-text">
+                <div class="ring-percent">{{ summary.percent }}%</div>
+              </div>
+            </n-progress>
             <div class="sub">
-              {{ summary.unlocked }} / {{ summary.total }} 已获得
+              已获得 {{ summary.unlocked }} / {{ summary.total }}
             </div>
           </div>
+
           <div class="rarity">
             <div
               v-for="r in summary.rarity"
               :key="r.rarity"
               class="rarity-item"
             >
-              <div class="rarity-label">{{ r.label }}</div>
-              <div class="rarity-count">{{ r.unlocked }} / {{ r.total }}</div>
+              <span
+                class="rarity-label"
+                :style="{ color: rarityColor[r.rarity] }"
+              >
+                {{ r.label }}
+              </span>
+              <span class="rarity-bar">
+                <span
+                  class="rarity-fill"
+                  :style="{
+                    width: r.total ? (r.unlocked / r.total) * 100 + '%' : '0%',
+                    background: rarityColor[r.rarity],
+                  }"
+                />
+              </span>
+              <span class="rarity-count">
+                <b>{{ r.unlocked }}</b> / {{ r.total }}
+              </span>
             </div>
           </div>
         </div>
@@ -114,34 +143,70 @@ watch(name, load)
 .overview-row {
   display: flex;
   align-items: center;
-  justify-content: space-between;
-  gap: 24px;
+  gap: 32px;
   flex-wrap: wrap;
 }
-.big {
-  font-size: 40px;
+.percent {
+  flex: none;
+  width: 110px;
+  text-align: center;
+}
+.percent :deep(.n-progress) {
+  width: 110px;
+}
+.ring-percent {
+  font-size: 22px;
   font-weight: 700;
   line-height: 1;
 }
 .sub {
-  margin-top: 6px;
-  font-size: 13px;
-  opacity: 0.7;
+  margin-top: 8px;
+  font-size: 12px;
+  opacity: 0.65;
+  white-space: nowrap;
 }
 .rarity {
-  display: flex;
-  gap: 20px;
+  flex: 1;
+  min-width: 240px;
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
+  gap: 10px 28px;
 }
 .rarity-item {
-  text-align: center;
+  display: flex;
+  align-items: center;
+  gap: 10px;
 }
 .rarity-label {
-  font-size: 12px;
-  opacity: 0.7;
+  flex: none;
+  width: 30px;
+  font-size: 13px;
+  font-weight: 600;
+}
+.rarity-bar {
+  flex: 1;
+  height: 6px;
+  min-width: 40px;
+  border-radius: 3px;
+  overflow: hidden;
+  background: rgba(128, 128, 128, 0.2); /* 灰底在明暗两套主题下都成立 */
+}
+.rarity-fill {
+  display: block;
+  height: 100%;
+  border-radius: 3px;
+  transition: width 0.4s ease;
 }
 .rarity-count {
-  font-weight: 600;
-  margin-top: 2px;
+  flex: none;
+  font-size: 12px;
+  opacity: 0.7;
+  white-space: nowrap;
+  font-variant-numeric: tabular-nums;
+}
+.rarity-count b {
+  font-size: 13px;
+  opacity: 0.9;
 }
 .tabs {
   margin: 16px 0;

src/shared/components/AchievementToast.vue

@@ -1,18 +1,12 @@
 <script setup lang="ts">
 import AchievementIcon from "shared/components/AchievementIcon.vue"
 import { useAchievementStore } from "shared/store/achievement"
+import { RARITY_COLOR } from "utils/constants"
 
 const store = useAchievementStore()
 const { current, queue } = storeToRefs(store)
 const visible = ref(false)
 
-const RARITY_COLOR: Record<string, string> = {
-  bronze: "#b87333",
-  silver: "#9fa6b2",
-  gold: "#e0a300",
-  platinum: "#7dd3fc",
-}
-
 let timer: ReturnType<typeof setTimeout> | null = null
 let gapTimer: ReturnType<typeof setTimeout> | null = null
 

src/shared/composables/rarity.ts

@@ -0,0 +1,15 @@
+import { useDark } from "@vueuse/core"
+import { computed } from "vue"
+import { RARITY_TEXT_COLOR } from "utils/constants"
+
+/**
+ * 成就稀有度的文字配色，跟随明暗主题切换。
+ * 两套色值都压到 4.5:1 以上，不然浅色模式下白金和黄金的小字看不清。
+ * 边框和色块不用这个，直接用 RARITY_COLOR 的原色。
+ */
+export function useRarityColor() {
+  const isDark = useDark()
+  return computed(() =>
+    isDark.value ? RARITY_TEXT_COLOR.dark : RARITY_TEXT_COLOR.light,
+  )
+}

src/utils/constants.ts

@@ -1,4 +1,4 @@
-import type { SUBMISSION_RESULT } from "./types"
+import type { AchievementRarity, SUBMISSION_RESULT } from "./types"
 
 export enum SubmissionStatus {
   compile_error = -2,
@@ -276,6 +276,42 @@ export enum ChartType {
   Activity,
 }
 
+// 成就稀有度
+export const RARITY_LABEL: Record<AchievementRarity, string> = {
+  bronze: "青铜",
+  silver: "白银",
+  gold: "黄金",
+  platinum: "白金",
+}
+
+// 边框、色块用的原色：饱和度够高，明暗底上都醒目
+export const RARITY_COLOR: Record<AchievementRarity, string> = {
+  bronze: "#b87333",
+  silver: "#9fa6b2",
+  gold: "#e0a300",
+  platinum: "#7dd3fc",
+}
+
+// 文字要另配一套。上面那组是照深色底调的，搬到白底上白金只有 1.7:1、
+// 黄金 2.2:1，12px 的稀有度标签根本看不清。取色见 useRarityColor
+export const RARITY_TEXT_COLOR: Record<
+  "dark" | "light",
+  Record<AchievementRarity, string>
+> = {
+  dark: {
+    bronze: "#d18d4f",
+    silver: "#b6bcc7",
+    gold: "#e0a300",
+    platinum: "#7dd3fc",
+  },
+  light: {
+    bronze: "#9a5b25",
+    silver: "#6b7280",
+    gold: "#a37500",
+    platinum: "#0284c7",
+  },
+}
+
 // 时间范围配置
 export const DURATION_OPTIONS = [
   { label: "本节课内", value: "hours:1" },