style(ui): 苹果风格二次打磨，统一圆角与材质并移除残留位移动效

- 去除卡片内联硬编码圆角(6px/8px)与固定色值，统一走主题变量与 12px 圆角

- 笔记卡片取消上浮投影，改用按压与填充反馈；版权角标、滚动条、拖拽条改为随主题取色

- 全局补充：遮罩轻微虚化、输入框聚焦光晕、卡片标题排版、选中文本强调色

- 设置卡片的悬停投影改为描边反馈；修正 settings.scss 中无效的 rgb(a, x) 写法

- 服务选择入口去掉 2px 撞色描边与悬停投影，改为细描边与极淡渐变

src/components/InitServiceChooser.vue

@@ -360,11 +360,18 @@ const openClassworksKV = () => {
 .main-service-card {
   min-height: 100px;
   cursor: pointer;
-  transition: all 0.3s ease;
+  transition: background-color 0.22s var(--apple-ease-out),
+    border-color 0.22s var(--apple-ease-out),
+    transform 0.14s var(--apple-ease-out);
 }
 
 .main-service-card:hover {
-  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15) !important;
+  border-color: var(--apple-hairline-strong) !important;
+}
+
+.main-service-card:active {
+  transform: scale(0.995);
+  transition-duration: 0.08s;
 }
 
 .main-service-card .v-card-item {
@@ -386,19 +393,20 @@ const openClassworksKV = () => {
   text-align: left;
 }
 
+/* 三档入口：取自主题强调色，只做极淡的底色渐变与一道细描边 */
 .gradient-new {
-  background: linear-gradient(135deg, rgba(33, 150, 243, .12), rgba(103, 80, 164, 0.08) 60%);
-  border: 2px solid rgba(33, 150, 243, .2);
+  background-image: linear-gradient(135deg, rgba(var(--v-theme-primary), 0.12), transparent 70%);
+  border: 1px solid rgba(var(--v-theme-primary), 0.26);
 }
 
 .gradient-registered {
-  background: linear-gradient(135deg, rgba(76, 175, 80, .12), rgba(0, 184, 212, 0.08) 60%);
-  border: 2px solid rgba(76, 175, 80, .2);
+  background-image: linear-gradient(135deg, rgba(var(--v-theme-success), 0.12), transparent 70%);
+  border: 1px solid rgba(var(--v-theme-success), 0.26);
 }
 
 .gradient-kv {
-  background: linear-gradient(135deg, rgba(0, 184, 212, .12), rgba(33, 150, 243, 0.08) 60%);
-  border: 2px solid rgba(0, 184, 212, .2);
+  background-image: linear-gradient(135deg, rgba(var(--v-theme-info), 0.12), transparent 70%);
+  border: 1px solid rgba(var(--v-theme-info), 0.26);
 }
 
 /* 其他选项 */

src/components/home/HomeworkGrid.vue

@@ -63,7 +63,6 @@
           color="grey-darken-3"
           class="glow-track"
           height="100%"
-          style="border-radius: 6px !important"
           @click="handleCardClick('dialog', item.key)"
           @mousemove="handleMouseMove"
           @touchmove="handleTouchMove"
@@ -206,7 +205,6 @@
           v-for="subject in unusedSubjects"
           :key="subject.name"
           border
-          style="border-radius: 6px !important"
           class="empty-subject-card"
           @click="handleCardClick('dialog', subject.name)"
         >

src/pages/index.vue

@@ -237,7 +237,6 @@
         <v-container
           fluid
           class="fill-height pa-0"
-          style="background-color: #121212;"
         >
           <v-row
             no-gutters
@@ -252,7 +251,7 @@
               <v-card 
                 class="flex-grow-1 d-flex flex-column position-relative overflow-hidden"
                 variant="outlined"
-                style="border-color: rgba(255,255,255,0.12); border-radius: 8px; background-color: #1E1E1E;"
+                style="border-color: var(--apple-hairline); background-color: rgb(var(--v-theme-surface));"
               >
                 <div
                   class="flex-grow-1 position-relative overflow-hidden"
@@ -591,10 +590,10 @@
             <!-- 拖拽条 -->
             <div
               class="resizer-handle"
-              style="width: 8px; cursor: col-resize; background-color: rgba(255,255,255,0.05); display: flex; justify-content: center; align-items: center; z-index: 10;"
+              style="width: 8px; cursor: col-resize; background-color: rgba(var(--v-theme-on-surface), 0.05); display: flex; justify-content: center; align-items: center; z-index: 10;"
               @mousedown.prevent="startNoteResize"
             >
-              <div style="width: 2px; height: 30px; background-color: rgba(255,255,255,0.3); border-radius: 2px;" />
+              <div style="width: 2px; height: 30px; background-color: rgba(var(--v-theme-on-surface), 0.3); border-radius: 2px;" />
             </div>
 
             <!-- 作业列表 (右侧) -->
@@ -658,7 +657,7 @@
                     class="mb-3 glow-track cursor-pointer note-card" 
                     variant="outlined" 
                     color="grey-darken-3"
-                    style="border-radius: 8px !important; border-color: rgba(255,255,255,0.12);"
+                    style="border-color: var(--apple-hairline);"
                     @click="openDialog(item.name)"
                     @mousemove="handleCardMouseMove"
                     @touchstart="handleCardMouseMove"
@@ -3004,20 +3003,19 @@ export default {
   position: fixed;
   bottom: 12px;
   right: 16px;
-  color: rgba(255, 255, 255, 0.7);
+  color: rgba(var(--v-theme-on-surface), 0.72);
   font-size: 17px;
   z-index: 100;
   pointer-events: none;
   user-select: none;
-  font-family: "Microsoft YaHei", sans-serif;
-  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
 
-  /* Box style */
-  border: 1px solid rgba(255, 255, 255, 0.2);
-  background-color: rgba(0, 0, 0, 0.4);
+  /* 与顶栏同源的悬浮材质，随主题取色 */
+  border: 1px solid var(--apple-hairline);
+  background-color: var(--apple-material);
   padding: 4px 12px;
-  border-radius: 4px;
-  backdrop-filter: blur(4px);
+  border-radius: var(--apple-radius-sm);
+  -webkit-backdrop-filter: saturate(180%) blur(16px);
+  backdrop-filter: saturate(180%) blur(16px);
 }
 
 .bloom-container {
@@ -3025,19 +3023,6 @@ export default {
   padding-bottom: 40px;
 }
 
-.note-card {
-  transition: transform 0.3s ease, box-shadow 0.3s ease;
-}
-
-.note-card:hover {
-  transform: translateY(-4px);
-  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15) !important;
-}
-
-.note-card:active {
-  transform: translateY(-2px);
-}
-
 .item-line-text {
   white-space: pre-line;
 }
@@ -3052,12 +3037,12 @@ export default {
 }
 
 .custom-scrollbar::-webkit-scrollbar-thumb {
-  background-color: rgba(255, 255, 255, 0.2);
+  background-color: rgba(var(--v-theme-on-surface), 0.16);
   border-radius: 3px;
 }
 
 .custom-scrollbar::-webkit-scrollbar-thumb:hover {
-  background-color: rgba(255, 255, 255, 0.4);
+  background-color: rgba(var(--v-theme-on-surface), 0.3);
 }
 
 .resizer-handle {

src/pages/settings.vue

@@ -784,11 +784,13 @@ export default {
 <style lang="scss">
 .settings-page {
   .v-card {
-    transition: transform 0.2s, box-shadow 0.2s;
+    transition: background-color 0.2s var(--apple-ease-out),
+      border-color 0.2s var(--apple-ease-out);
+  }
 
-    &:hover {
-      box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1) !important;
-    }
+  /* 仅可点击的卡片给出悬停反馈，静态设置卡片保持安静 */
+  .v-card.cursor-pointer:hover {
+    border-color: var(--apple-hairline-strong) !important;
   }
 }
 </style>

src/styles/apple.scss

@@ -69,6 +69,29 @@
   line-height: 1.25;
 }
 
+/* 卡片标题：系统标题字重，避免 Material 默认的宽字距 */
+.v-application .v-card-title {
+  font-weight: 600;
+  letter-spacing: -0.01em;
+  line-height: 1.3;
+}
+
+.v-application .v-card-subtitle {
+  letter-spacing: 0;
+  opacity: 0.72;
+}
+
+/* 列表项标题保持中等字重，与系统侧边栏一致 */
+.v-application .v-list-item-title {
+  font-weight: 500;
+  letter-spacing: 0;
+}
+
+/* 选中文本使用主题强调色，与系统高亮一致 */
+::selection {
+  background: rgba(var(--v-theme-primary), 0.32);
+}
+
 /* ---------------------------------------------------------------------------
    2. 顶栏与抽屉：半透明材质，内容可从下方穿过
    --------------------------------------------------------------------------- */
@@ -201,6 +224,12 @@
   box-shadow: var(--apple-shadow-popover) !important;
 }
 
+/* 遮罩层轻微虚化底层内容，营造系统的层次纵深 */
+.v-overlay__scrim {
+  -webkit-backdrop-filter: blur(2px);
+  backdrop-filter: blur(2px);
+}
+
 /* 提示气泡在明暗两套主题下都保持深色，与系统行为一致 */
 .v-tooltip > .v-overlay__content {
   border-radius: var(--apple-radius-sm) !important;
@@ -215,6 +244,11 @@
   border-radius: var(--apple-radius) !important;
 }
 
+/* 色块型提示加一道极细描边，边界更利落（描边款自带边框，不重复处理） */
+.v-alert--variant-tonal {
+  border: 1px solid var(--apple-hairline);
+}
+
 .v-divider {
   border-color: var(--apple-hairline) !important;
   opacity: 1 !important;
@@ -225,6 +259,11 @@
   border-radius: 10px !important;
 }
 
+/* 聚焦时给输入框一圈柔和的强调色光晕，替代 Material 的整圈描边闪变 */
+.v-field--focused {
+  box-shadow: 0 0 0 3px rgba(var(--v-theme-primary), 0.16);
+}
+
 .v-snackbar__wrapper > .v-sheet {
   border-radius: var(--apple-radius) !important;
   border: 1px solid var(--apple-hairline);
@@ -298,6 +337,11 @@ a:focus-visible {
     -webkit-backdrop-filter: none;
     backdrop-filter: none;
   }
+
+  .v-overlay__scrim {
+    -webkit-backdrop-filter: none;
+    backdrop-filter: none;
+  }
 }
 
 @media (prefers-contrast: more) {

src/styles/settings.scss

@@ -10,11 +10,12 @@
 // );
 
 .student-card {
-  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
+  transition: background-color 0.2s var(--apple-ease-out),
+    border-color 0.2s var(--apple-ease-out);
 }
 
 .bg-primary-subtle {
-  background-color: rgb(var(--v-theme-primary), 0.05);
+  background-color: rgba(var(--v-theme-primary), 0.05);
 }
 
 .action-buttons {
@@ -77,5 +78,5 @@
 }
 
 .student-card:active {
-  background-color: rgb(var(--v-theme-primary), 0.05);
+  background-color: rgba(var(--v-theme-primary), 0.05);
 }

vite.config.mjs

@@ -103,9 +103,15 @@ const localFileStoragePlugin = () => {
           const filePath = path.join(dataDir, `${safeKey}.json`);
           
           if (fs.existsSync(filePath)) {
-            const data = fs.readFileSync(filePath, 'utf-8');
-            res.setHeader('Content-Type', 'application/json');
-            res.end(JSON.stringify({ success: true, data: JSON.parse(data) }));
+            try {
+              // 文件可能带 UTF-8 BOM（外部编辑器/同步工具写入），解析前需剥离，否则 JSON.parse 抛错
+              const raw = fs.readFileSync(filePath, 'utf-8').replace(/^\uFEFF/, '');
+              res.setHeader('Content-Type', 'application/json');
+              res.end(JSON.stringify({ success: true, data: JSON.parse(raw) }));
+            } catch (e) {
+              res.statusCode = 500;
+              res.end(JSON.stringify({ success: false, error: e.message }));
+            }
           } else {
             res.statusCode = 404;
             res.end(JSON.stringify({ success: false, error: 'Not found' }));