style(admin): 清理考勤页与排课表的冗余装饰与标签

apps/admin/src/pages/Attendance/AttendanceAdminHeader.tsx

@@ -196,7 +196,6 @@ export const AttendanceAdminHeader: React.FC<{
       <section className="student-class-overview" aria-label="班级考勤汇总">
         <div className="student-class-identity">
           <div className="student-class-heading">
-            <span className="student-overview-kicker">班级考勤概览</span>
             <h2>{selectedClass}</h2>
             <p>
               {dateLabel} · 当前展示 {visibleStudentCount} 名学生 / {total} 条记录

apps/admin/src/pages/Attendance/LessonAttendanceDetail.tsx

@@ -148,7 +148,6 @@ const LessonAttendanceDetail: React.FC<LessonAttendanceDetailProps> = ({
       destroyOnHidden
     >
       <div className="lesson-record-header">
-        <span className="attendance-eyebrow">LESSON ATTENDANCE</span>
         <h2>{displayedSchedule?.subject || '课程考勤'}</h2>
         <p>
           {className} · {displayedSchedule?.startTime}–{displayedSchedule?.endTime} ·{' '}

apps/admin/src/pages/Attendance/attendance.css

@@ -761,7 +761,6 @@
   padding: 0 24px;
   border-bottom: 1px solid var(--student-line);
   background: rgb(255 255 255 / 96%);
-  backdrop-filter: blur(10px);
 }
 
 .student-center-title {
@@ -911,21 +910,7 @@
   min-height: 176px;
   overflow: hidden;
   padding: 20px;
-  background:
-    radial-gradient(circle at 100% 0%, rgb(21 122 101 / 10%), transparent 34%),
-    linear-gradient(135deg, #ffffff 0%, #f8fcfa 100%);
-}
-
-.student-class-identity::after {
-  content: '';
-  position: absolute;
-  right: -36px;
-  bottom: -44px;
-  width: 118px;
-  height: 118px;
-  border: 18px solid rgb(21 122 101 / 7%);
-  border-radius: 999px;
-  pointer-events: none;
+  background: var(--student-surface);
 }
 
 .student-class-heading {
@@ -933,19 +918,6 @@
   z-index: 1;
 }
 
-.student-overview-kicker {
-  display: inline-flex;
-  align-items: center;
-  min-height: 24px;
-  margin-bottom: 8px;
-  padding: 0 9px;
-  border-radius: 999px;
-  background: rgb(21 122 101 / 10%);
-  color: var(--student-primary);
-  font-size: 12px;
-  font-weight: 700;
-}
-
 .student-class-identity h2 {
   margin: 0 0 6px;
   color: #111c18;

apps/admin/src/pages/ClassroomSchedule/index.tsx

@@ -16,7 +16,7 @@ import {
   Empty,
   Tooltip,
 } from 'antd';
-import { CalendarOutlined, FileTextOutlined } from '@ant-design/icons';
+import { CalendarOutlined, FileTextOutlined, ReadOutlined } from '@ant-design/icons';
 import dayjs, { Dayjs } from 'dayjs';
 import api from '../../api';
 import { downloadBlob } from '../../utils/download';
@@ -314,7 +314,13 @@ const ClassroomSchedulePage: React.FC = () => {
                                     }
                                   >
                                     <span style={{ color: '#fff', fontSize: 10, fontWeight: 600 }}>
-                                      {isInternal ? '📖' : cell.hasContract ? '📄' : ''}
+                                      {isInternal ? (
+                                        <ReadOutlined style={{ fontSize: 12 }} />
+                                      ) : cell.hasContract ? (
+                                        <FileTextOutlined style={{ fontSize: 12 }} />
+                                      ) : (
+                                        ''
+                                      )}
                                     </span>
                                   </Tooltip>
                                 )}