mobile . themes

.claude/settings.local.json

@@ -23,7 +23,14 @@
       "Bash(cd \"D:/360MoveData/Users/HEIHAHA/Documents/WeChat Files/wxid_k0iaj5miuryq22/FileStorage/File/2026-02/超级大网站2月23号\" && py -3 -c \"\nimport os, glob\ntemplates = glob.glob\\('templates/*.html'\\)\ncount = 0\nfor f in templates:\n    with open\\(f, 'r', encoding='utf-8'\\) as fh:\n        content = fh.read\\(\\)\n    if '联考平台' in content:\n        new_content = content.replace\\('联考平台', '智联青云'\\)\n        with open\\(f, 'w', encoding='utf-8'\\) as fh:\n            fh.write\\(new_content\\)\n        count += 1\n        print\\(f'  replaced in {f}'\\)\nprint\\(f'Done: {count} files updated'\\)\n\" 2>&1)",
       "Bash(git stash:*)",
       "Bash(git pull:*)",
-      "Bash(iconv:*)"
+      "Bash(iconv:*)",
+      "Bash(git add:*)",
+      "Bash(git push)",
+      "Bash(git commit:*)",
+      "Bash(git push:*)",
+      "Bash(sqlite3:*)",
+      "Bash(source venv/Scripts/activate)",
+      "Bash(venv/Scripts/python.exe:*)"
     ]
   }
 }

.gitignore

@@ -7,4 +7,5 @@ venv/
 dist/
 build/
 node_modules/
-model/
+model/
+.claude/settings.local.json

add_visibility_column.py

@@ -1,40 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-"""
-添加 exam.visibility 字段的数据库迁移脚本
-"""
-
-from app import app, db
-from models import Exam
-
-def add_visibility_column():
-    """为 Exam 表添加 visibility 字段"""
-    with app.app_context():
-        try:
-            # 检查字段是否已存在
-            inspector = db.inspect(db.engine)
-            columns = [col['name'] for col in inspector.get_columns('exam')]
-
-            if 'visibility' in columns:
-                print("visibility 字段已存在，无需添加")
-                return
-
-            # 添加字段
-            with db.engine.connect() as conn:
-                conn.execute(db.text("ALTER TABLE exam ADD COLUMN visibility VARCHAR(20) DEFAULT 'private'"))
-                conn.commit()
-                print("成功添加 visibility 字段")
-
-                # 将所有现有考试设置为公开（保持向后兼容）
-                conn.execute(db.text("UPDATE exam SET visibility = 'public' WHERE visibility IS NULL"))
-                conn.commit()
-                print("已将现有考试设置为公开")
-
-        except Exception as e:
-            print(f"添加字段时出错: {e}")
-            raise
-
-if __name__ == '__main__':
-    print("开始添加 visibility 字段...")
-    add_visibility_column()
-    print("完成！")

backup_utils.py

@@ -0,0 +1,116 @@
+# backup_utils.py - 数据备份工具
+"""管理员数据备份：导出所有表数据为 JSON，支持打包上传文件"""
+import json
+import os
+import zipfile
+from datetime import datetime
+from models import beijing_now
+from io import BytesIO
+
+from models import (
+    db, User, Exam, Submission, Draft, Contest, ContestMembership,
+    ContestApplication, Post, Reply, Poll, Report, Bookmark, Reaction,
+    Notification, EditHistory, ContestRegistration, TeacherApplication,
+    Friend, ExamBookmark, ChatRoom, ChatRoomMember, Message, MessageReaction,
+    QuestionBankItem, InviteCode, SystemNotification
+)
+
+
+def _serialize_value(val):
+    """序列化单个值为 JSON 可存储格式"""
+    if val is None:
+        return None
+    if isinstance(val, datetime):
+        return val.strftime('%Y-%m-%d %H:%M:%S')
+    if isinstance(val, bool):
+        return val
+    if isinstance(val, (int, float, str)):
+        return val
+    if isinstance(val, (list, dict)):
+        return val
+    return str(val)
+
+
+def _model_to_dict(obj):
+    """将 SQLAlchemy 模型实例转为可序列化字典"""
+    if obj is None:
+        return None
+    d = {}
+    for col in obj.__table__.columns:
+        val = getattr(obj, col.name)
+        d[col.name] = _serialize_value(val)
+    return d
+
+
+# 按依赖顺序排列的表（父表在前）
+BACKUP_MODELS = [
+    ('user', User),
+    ('contest', Contest),
+    ('contest_membership', ContestMembership),
+    ('contest_application', ContestApplication),
+    ('contest_registration', ContestRegistration),
+    ('question_bank_item', QuestionBankItem),
+    ('exam', Exam),
+    ('submission', Submission),
+    ('draft', Draft),
+    ('post', Post),
+    ('reply', Reply),
+    ('poll', Poll),
+    ('reaction', Reaction),
+    ('bookmark', Bookmark),
+    ('report', Report),
+    ('notification', Notification),
+    ('edit_history', EditHistory),
+    ('teacher_application', TeacherApplication),
+    ('friend', Friend),
+    ('exam_bookmark', ExamBookmark),
+    ('chat_room', ChatRoom),
+    ('chat_room_member', ChatRoomMember),
+    ('message', Message),
+    ('message_reaction', MessageReaction),
+    ('invite_code', InviteCode),
+    ('system_notification', SystemNotification),
+]
+
+
+def export_all_data():
+    """导出所有表数据为 JSON 字典"""
+    data = {
+        'meta': {
+            'exported_at': beijing_now().strftime('%Y-%m-%d %H:%M:%S'),
+            'version': '1.0',
+        },
+        'tables': {}
+    }
+    for table_name, model in BACKUP_MODELS:
+        try:
+            rows = model.query.order_by(model.id).all()
+            data['tables'][table_name] = [_model_to_dict(r) for r in rows]
+        except Exception as e:
+            data['tables'][table_name] = {'_error': str(e)}
+    return data
+
+
+def create_backup_zip(include_uploads=True, upload_folder=None):
+    """
+    创建完整备份 ZIP 包
+    :param include_uploads: 是否包含上传文件
+    :param upload_folder: 上传目录路径，默认 static/uploads
+    :return: BytesIO 中的 ZIP 文件
+    """
+    buf = BytesIO()
+    with zipfile.ZipFile(buf, 'w', zipfile.ZIP_DEFLATED) as zf:
+        # 1. 导出数据 JSON
+        data = export_all_data()
+        zf.writestr('data.json', json.dumps(data, ensure_ascii=False, indent=2))
+
+        # 2. 可选：上传文件
+        if include_uploads and upload_folder and os.path.isdir(upload_folder):
+            for root, dirs, files in os.walk(upload_folder):
+                for f in files:
+                    fp = os.path.join(root, f)
+                    arcname = 'uploads/' + os.path.relpath(fp, upload_folder).replace('\\', '/')
+                    zf.write(fp, arcname, compress_type=zipfile.ZIP_DEFLATED)
+
+    buf.seek(0)
+    return buf

check_applications.py

@@ -1,50 +0,0 @@
-"""
-检查教师申请数据的完整性
-"""
-import sqlite3
-
-db_path = 'instance/database.db'
-conn = sqlite3.connect(db_path)
-cursor = conn.cursor()
-
-print("检查教师申请数据完整性...\n")
-
-# 获取所有待审批的申请
-cursor.execute("""
-    SELECT id, user_id, contest_id, name, email, status
-    FROM teacher_application
-    WHERE status = 'pending'
-""")
-apps = cursor.fetchall()
-
-if not apps:
-    print("没有待审批的教师申请")
-else:
-    print(f"找到 {len(apps)} 个待审批的申请\n")
-
-    for app in apps:
-        app_id, user_id, contest_id, name, email, status = app
-        print(f"申请 ID: {app_id}")
-        print(f"  用户ID: {user_id}, 杯赛ID: {contest_id}")
-        print(f"  姓名: {name}, 邮箱: {email}")
-
-        # 检查用户是否存在
-        cursor.execute("SELECT id, name FROM user WHERE id = ?", (user_id,))
-        user = cursor.fetchone()
-        if user:
-            print(f"  [OK] 用户存在: {user[1]}")
-        else:
-            print(f"  [ERROR] 用户不存在！")
-
-        # 检查杯赛是否存在
-        cursor.execute("SELECT id, name FROM contest WHERE id = ?", (contest_id,))
-        contest = cursor.fetchone()
-        if contest:
-            print(f"  [OK] 杯赛存在: {contest[1]}")
-        else:
-            print(f"  [ERROR] 杯赛不存在！")
-
-        print()
-
-conn.close()
-print("检查完成")

clean_data.py

@@ -1,49 +0,0 @@
-import os
-from app import app, db
-from models import (
-    Contest, ContestMembership, ContestApplication, ContestRegistration,
-    Exam, Submission, Draft, ExamBookmark,
-    Post, Reply, Poll, Reaction, Bookmark, Report,
-    QuestionBankItem, Notification, SystemNotification,
-    TeacherApplication, InviteCode, ChatRoom, ChatRoomMember, Message
-)
-
-def clean_test_data():
-    with app.app_context():
-        # 删除所有跟杯赛相关的记录
-        ContestMembership.query.delete()
-        ContestApplication.query.delete()
-        ContestRegistration.query.delete()
-        QuestionBankItem.query.delete()
-        TeacherApplication.query.delete()
-        InviteCode.query.delete()
-        Contest.query.delete()
-        
-        # 删除所有跟考试相关的记录
-        Submission.query.delete()
-        Draft.query.delete()
-        ExamBookmark.query.delete()
-        Exam.query.delete()
-
-        # 删除所有跟帖子相关的记录
-        Reply.query.delete()
-        Poll.query.delete()
-        Reaction.query.delete()
-        Bookmark.query.delete()
-        Report.query.delete()
-        Post.query.delete()
-        
-        # 删除聊天系统相关的记录（因为有自动为杯赛建群的功能，顺便清一下比较干净）
-        Message.query.delete()
-        ChatRoomMember.query.delete()
-        ChatRoom.query.delete()
-        
-        # 也可以清理系统通知、普通通知
-        Notification.query.delete()
-        SystemNotification.query.delete()
-
-        db.session.commit()
-        print("所有测试的杯赛、考试、帖子及相关数据已成功删除！")
-
-if __name__ == '__main__':
-    clean_test_data()

create_admin.py

@@ -1,45 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-"""创建管理员账号脚本"""
-
-from app import app, db
-from models import User
-
-def create_admin():
-    with app.app_context():
-        # 检查邮箱是否已存在
-        existing_user = User.query.filter_by(email='1512344589@qq.com').first()
-        if existing_user:
-            print(f'邮箱 1512344589@qq.com 已存在')
-            print(f'用户名: {existing_user.name}')
-            print(f'角色: {existing_user.role}')
-
-            # 更新为管理员
-            if existing_user.role != 'admin':
-                existing_user.role = 'admin'
-                existing_user.password = '1'
-                db.session.commit()
-                print('已将该用户更新为管理员')
-            else:
-                print('该用户已经是管理员')
-            return
-
-        # 创建新管理员
-        admin = User(
-            name='管理员',
-            email='1512344589@qq.com',
-            password='1',
-            role='admin'
-        )
-
-        db.session.add(admin)
-        db.session.commit()
-
-        print('管理员账号创建成功！')
-        print(f'邮箱: {admin.email}')
-        print(f'密码: 1')
-        print(f'角色: {admin.role}')
-        print(f'用户ID: {admin.id}')
-
-if __name__ == '__main__':
-    create_admin()

excel_export.py

@@ -0,0 +1,78 @@
+# excel_export.py
+import csv
+from io import StringIO, BytesIO
+
+
+def _to_csv(headers, rows):
+    """生成 UTF-8 BOM 编码的 CSV，兼容 VSCode 和 Excel"""
+    buf = StringIO()
+    writer = csv.writer(buf)
+    writer.writerow(headers)
+    writer.writerows(rows)
+
+    output = BytesIO()
+    output.write(b'\xef\xbb\xbf')  # UTF-8 BOM
+    output.write(buf.getvalue().encode('utf-8'))
+    output.seek(0)
+    return output
+
+
+def export_users_to_excel(users):
+    headers = ["ID", "用户名", "邮箱", "手机号", "角色", "状态", "完成考试数", "注册时间"]
+    rows = []
+    for u in users:
+        rows.append([
+            u.id, u.name, u.email or "", u.phone or "", u.role,
+            "已封禁" if u.is_banned else "正常", u.completed_exams,
+            u.created_at.strftime("%Y-%m-%d %H:%M:%S") if u.created_at else ""
+        ])
+    return _to_csv(headers, rows)
+
+
+def export_exams_to_excel(exams):
+    headers = ["ID", "考试名称", "创建者ID", "总分", "时长(分钟)", "状态", "提交数", "创建时间"]
+    rows = []
+    for e in exams:
+        rows.append([
+            e.id, e.title, e.creator_id, e.total_score, e.duration, e.status,
+            len(e.submissions) if e.submissions else 0,
+            e.created_at.strftime("%Y-%m-%d %H:%M:%S") if e.created_at else ""
+        ])
+    return _to_csv(headers, rows)
+
+
+def export_submissions_to_excel(submissions):
+    headers = ["ID", "考试ID", "考试名称", "用户ID", "用户名", "得分", "总分", "状态", "提交时间"]
+    rows = []
+    for s in submissions:
+        rows.append([
+            s.id, s.exam_id, s.exam.title if s.exam else "", s.user_id,
+            s.user.name if s.user else "", s.score if s.score is not None else "",
+            s.total_score, s.status,
+            s.submitted_at.strftime("%Y-%m-%d %H:%M:%S") if s.submitted_at else ""
+        ])
+    return _to_csv(headers, rows)
+
+
+def export_contests_to_excel(contests):
+    headers = ["ID", "杯赛名称", "主办方", "开始日期", "结束日期", "状态", "参与人数", "创建时间"]
+    rows = []
+    for c in contests:
+        rows.append([
+            c.id, c.name, c.organizer or "", c.start_date or "", c.end_date or "",
+            c.status, c.participants,
+            c.created_at.strftime("%Y-%m-%d %H:%M:%S") if c.created_at else ""
+        ])
+    return _to_csv(headers, rows)
+
+
+def export_posts_to_excel(posts):
+    headers = ["ID", "标题", "作者", "分类", "浏览数", "回复数", "点赞数", "创建时间"]
+    rows = []
+    for p in posts:
+        rows.append([
+            p.id, p.title, p.author.name if p.author else "", p.category or "",
+            p.views, p.reply_count, p.like_count,
+            p.created_at.strftime("%Y-%m-%d %H:%M:%S") if p.created_at else ""
+        ])
+    return _to_csv(headers, rows)

models.py

@@ -1,6 +1,11 @@
 # models.py
 from flask_sqlalchemy import SQLAlchemy
-from datetime import datetime
+from datetime import datetime, timezone, timedelta
+
+_beijing_tz = timezone(timedelta(hours=8))
+
+def beijing_now():
+    return datetime.now(_beijing_tz).replace(tzinfo=None)
 import json
 
 db = SQLAlchemy()
@@ -17,7 +22,7 @@ class User(db.Model):
     is_banned = db.Column(db.Boolean, default=False)
     completed_exams = db.Column(db.Integer, default=0)  # 已完成并批改的考试次数
     name_changed_at = db.Column(db.DateTime, nullable=True)  # 上次修改用户名时间
-    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    created_at = db.Column(db.DateTime, default=beijing_now)
 
     # 关系
     exams_created = db.relationship('Exam', back_populates='creator', lazy=True)
@@ -39,7 +44,7 @@ class ContestMembership(db.Model):
     user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
     contest_id = db.Column(db.Integer, db.ForeignKey('contest.id'), nullable=False)
     role = db.Column(db.String(20), nullable=False)  # 'owner' 或 'teacher'
-    joined_at = db.Column(db.DateTime, default=datetime.utcnow)
+    joined_at = db.Column(db.DateTime, default=beijing_now)
 
     user = db.relationship('User', back_populates='contest_memberships')
     contest = db.relationship('Contest', back_populates='members')
@@ -55,7 +60,7 @@ class ContestApplication(db.Model):
     description = db.Column(db.Text)
     contact = db.Column(db.String(100))
     status = db.Column(db.String(20), default='pending')  # pending, approved, rejected
-    applied_at = db.Column(db.DateTime, default=datetime.utcnow)
+    applied_at = db.Column(db.DateTime, default=beijing_now)
     reviewed_at = db.Column(db.DateTime)
     total_score = db.Column(db.Integer, default=150)  # 杯赛默认满分
     start_date = db.Column(db.String(20))  # 申请时填写的开始日期
@@ -78,7 +83,7 @@ class ContestRegistration(db.Model):
     id = db.Column(db.Integer, primary_key=True)
     user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
     contest_id = db.Column(db.Integer, db.ForeignKey('contest.id'), nullable=False)
-    registered_at = db.Column(db.DateTime, default=datetime.utcnow)
+    registered_at = db.Column(db.DateTime, default=beijing_now)
 
     __table_args__ = (db.UniqueConstraint('user_id', 'contest_id', name='uq_user_contest_reg'),)
 
@@ -93,7 +98,7 @@ class Contest(db.Model):
     status = db.Column(db.String(20), default='upcoming')
     participants = db.Column(db.Integer, default=0)
     created_by = db.Column(db.Integer, db.ForeignKey('user.id'))
-    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    created_at = db.Column(db.DateTime, default=beijing_now)
     past_papers = db.Column(db.Text)  # JSON 存储历年真题 [{year, title, file}]
     total_score = db.Column(db.Integer, default=150)  # 杯赛默认考试满分
     visible = db.Column(db.Boolean, default=True)  # 是否对普通用户可见
@@ -125,7 +130,7 @@ class QuestionBankItem(db.Model):
     options = db.Column(db.Text)                       # JSON，选择题选项
     answer = db.Column(db.Text)                        # 答案
     score = db.Column(db.Integer, default=10)          # 建议分值
-    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    created_at = db.Column(db.DateTime, default=beijing_now)
 
     contest = db.relationship('Contest', backref='question_bank_items')
     contributor = db.relationship('User', backref='contributed_questions')
@@ -146,7 +151,7 @@ class Exam(db.Model):
     scheduled_start = db.Column(db.DateTime, nullable=True)  # 预定开始时间
     scheduled_end = db.Column(db.DateTime, nullable=True)    # 预定结束时间
     score_release_time = db.Column(db.DateTime, nullable=True)  # 成绩公布时间
-    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    created_at = db.Column(db.DateTime, default=beijing_now)
     status = db.Column(db.String(20), default='available')
     visibility = db.Column(db.String(20), default='private')  # 'private' 或 'public'
 
@@ -170,7 +175,7 @@ class Submission(db.Model):
     question_scores = db.Column(db.Text)  # JSON
     graded = db.Column(db.Boolean, default=False)
     graded_by = db.Column(db.String(80))
-    submitted_at = db.Column(db.DateTime, default=datetime.utcnow)
+    submitted_at = db.Column(db.DateTime, default=beijing_now)
 
     exam = db.relationship('Exam', back_populates='submissions')
     user = db.relationship('User', back_populates='submissions')
@@ -193,7 +198,7 @@ class Draft(db.Model):
     exam_id = db.Column(db.Integer, db.ForeignKey('exam.id'))
     user_id = db.Column(db.Integer, db.ForeignKey('user.id'))
     answers = db.Column(db.Text)  # JSON
-    saved_at = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+    saved_at = db.Column(db.DateTime, default=beijing_now, onupdate=beijing_now)
 
     exam = db.relationship('Exam', back_populates='drafts')
     user = db.relationship('User', back_populates='drafts')
@@ -219,8 +224,8 @@ class Post(db.Model):
     has_poll = db.Column(db.Boolean, default=False)
     images = db.Column(db.Text)  # JSON
     contest_id = db.Column(db.Integer, db.ForeignKey('contest.id'), nullable=True)
-    created_at = db.Column(db.DateTime, default=datetime.utcnow)
-    updated_at = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+    created_at = db.Column(db.DateTime, default=beijing_now)
+    updated_at = db.Column(db.DateTime, default=beijing_now, onupdate=beijing_now)
 
     author = db.relationship('User', back_populates='posts')
     replies = db.relationship('Reply', back_populates='post', lazy=True, cascade='all, delete-orphan')
@@ -243,8 +248,8 @@ class Reply(db.Model):
     content = db.Column(db.Text, nullable=False)
     likes = db.Column(db.Integer, default=0)
     reply_to = db.Column(db.String(80))
-    created_at = db.Column(db.DateTime, default=datetime.utcnow)
-    updated_at = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+    created_at = db.Column(db.DateTime, default=beijing_now)
+    updated_at = db.Column(db.DateTime, default=beijing_now, onupdate=beijing_now)
 
     post = db.relationship('Post', back_populates='replies')
     author = db.relationship('User', back_populates='replies')
@@ -259,7 +264,7 @@ class Poll(db.Model):
     voters = db.Column(db.Text)   # JSON
     multi = db.Column(db.Boolean, default=False)
     total_votes = db.Column(db.Integer, default=0)
-    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    created_at = db.Column(db.DateTime, default=beijing_now)
 
     post = db.relationship('Post', back_populates='poll')
 
@@ -282,7 +287,7 @@ class Reaction(db.Model):
     post_id = db.Column(db.Integer, db.ForeignKey('post.id'), nullable=True)
     reply_id = db.Column(db.Integer, db.ForeignKey('reply.id'), nullable=True)
     reaction = db.Column(db.String(20))
-    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    created_at = db.Column(db.DateTime, default=beijing_now)
 
     user = db.relationship('User', back_populates='reactions')
     post = db.relationship('Post', back_populates='reactions')
@@ -298,7 +303,7 @@ class Bookmark(db.Model):
     id = db.Column(db.Integer, primary_key=True)
     user_id = db.Column(db.Integer, db.ForeignKey('user.id'))
     post_id = db.Column(db.Integer, db.ForeignKey('post.id'))
-    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    created_at = db.Column(db.DateTime, default=beijing_now)
 
     user = db.relationship('User', back_populates='bookmarks')
     post = db.relationship('Post', back_populates='bookmarks')
@@ -314,7 +319,7 @@ class Report(db.Model):
     reason = db.Column(db.String(100))
     detail = db.Column(db.Text)
     status = db.Column(db.String(20), default='pending')
-    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    created_at = db.Column(db.DateTime, default=beijing_now)
 
     # reporter 已在 User 中通过 backref 定义
 
@@ -327,7 +332,7 @@ class Notification(db.Model):
     from_user = db.Column(db.String(80))
     post_id = db.Column(db.Integer, nullable=True)
     read = db.Column(db.Boolean, default=False)
-    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    created_at = db.Column(db.DateTime, default=beijing_now)
 
     # user 已在 User 中通过 backref 定义
 
@@ -338,8 +343,8 @@ class SystemNotification(db.Model):
     content = db.Column(db.Text, nullable=False)
     author_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
     pinned = db.Column(db.Boolean, default=False)
-    created_at = db.Column(db.DateTime, default=datetime.utcnow)
-    updated_at = db.Column(db.DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+    created_at = db.Column(db.DateTime, default=beijing_now)
+    updated_at = db.Column(db.DateTime, default=beijing_now, onupdate=beijing_now)
 
     author = db.relationship('User', backref='system_notifications')
 
@@ -350,7 +355,7 @@ class EditHistory(db.Model):
     title = db.Column(db.String(200))
     content = db.Column(db.Text)
     edited_by = db.Column(db.String(80))
-    edited_at = db.Column(db.DateTime, default=datetime.utcnow)
+    edited_at = db.Column(db.DateTime, default=beijing_now)
 
     post = db.relationship('Post')
 
@@ -364,7 +369,7 @@ class TeacherApplication(db.Model):
     email = db.Column(db.String(120), nullable=False)       # 申请人邮箱
     reason = db.Column(db.Text, nullable=False)             # 申请理由
     status = db.Column(db.String(20), default='pending')    # pending, approved, rejected
-    applied_at = db.Column(db.DateTime, default=datetime.utcnow)
+    applied_at = db.Column(db.DateTime, default=beijing_now)
     reviewed_at = db.Column(db.DateTime)
     reviewed_by = db.Column(db.Integer, db.ForeignKey('user.id'))
     # 拒绝次数控制
@@ -384,7 +389,7 @@ class Friend(db.Model):
     user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
     friend_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
     status = db.Column(db.String(20), default='pending')  # pending, accepted
-    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    created_at = db.Column(db.DateTime, default=beijing_now)
 
     user = db.relationship('User', foreign_keys=[user_id], backref=db.backref('friends_initiated', lazy='dynamic'))
     friend = db.relationship('User', foreign_keys=[friend_id], backref=db.backref('friends_received', lazy='dynamic'))
@@ -394,7 +399,7 @@ class ExamBookmark(db.Model):
     id = db.Column(db.Integer, primary_key=True)
     user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
     exam_id = db.Column(db.Integer, db.ForeignKey('exam.id'), nullable=False)
-    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    created_at = db.Column(db.DateTime, default=beijing_now)
 
     user = db.relationship('User', backref=db.backref('exam_bookmarks', lazy='dynamic', cascade='all, delete-orphan'))
     exam = db.relationship('Exam', backref=db.backref('bookmarked_by', lazy='dynamic', cascade='all, delete-orphan'))
@@ -412,7 +417,7 @@ class ChatRoom(db.Model):
     announcement = db.Column(db.Text, default='')
     announcement_by = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=True)
     announcement_at = db.Column(db.DateTime, nullable=True)
-    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    created_at = db.Column(db.DateTime, default=beijing_now)
 
     creator = db.relationship('User', foreign_keys=[creator_id], backref='chatrooms_created')
     announcement_user = db.relationship('User', foreign_keys=[announcement_by])
@@ -428,8 +433,8 @@ class ChatRoomMember(db.Model):
     role = db.Column(db.String(20), default='member')  # 'admin' | 'member'
     nickname = db.Column(db.String(50), default='')
     muted = db.Column(db.Boolean, default=False)
-    last_read_at = db.Column(db.DateTime, default=datetime.utcnow)
-    joined_at = db.Column(db.DateTime, default=datetime.utcnow)
+    last_read_at = db.Column(db.DateTime, default=beijing_now)
+    joined_at = db.Column(db.DateTime, default=beijing_now)
 
     user = db.relationship('User', backref='chat_memberships')
 
@@ -447,7 +452,7 @@ class Message(db.Model):
     recalled = db.Column(db.Boolean, default=False)
     reply_to_id = db.Column(db.Integer, db.ForeignKey('message.id'), nullable=True)
     mentions = db.Column(db.Text, default='')  # JSON array of user IDs, e.g. "[1,2,3]" or "all"
-    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    created_at = db.Column(db.DateTime, default=beijing_now)
 
     sender = db.relationship('User', backref='messages_sent')
     reply_to = db.relationship('Message', remote_side='Message.id', backref='replies')
@@ -459,7 +464,7 @@ class MessageReaction(db.Model):
     message_id = db.Column(db.Integer, db.ForeignKey('message.id'), nullable=False)
     user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
     emoji = db.Column(db.String(10), nullable=False)
-    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    created_at = db.Column(db.DateTime, default=beijing_now)
 
     user = db.relationship('User', backref='message_reactions')
 
@@ -472,7 +477,7 @@ class InviteCode(db.Model):
     user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=False)
     application_id = db.Column(db.Integer, db.ForeignKey('teacher_application.id'), nullable=False)
     used = db.Column(db.Boolean, default=False)
-    created_at = db.Column(db.DateTime, default=datetime.utcnow)
+    created_at = db.Column(db.DateTime, default=beijing_now)
     used_at = db.Column(db.DateTime, nullable=True)
 
     user = db.relationship('User', backref='invite_codes')

requirements.txt

@@ -7,3 +7,5 @@ flask-socketio>=5.3.0
 PyMuPDF>=1.24.0
 openai>=1.14.0
 Flask-Caching>=2.3.0
+openpyxl>=3.1.0
+Flask-SQLAlchemy>=3.0.0

static/css/style.css

@@ -463,7 +463,85 @@ button[onclick^="quickScore"]:active {
     color: rgba(255, 255, 255, 0.8);
 }
 
-/* 粒子背景容器 */
+/* 聊天界面优化 */
+#messageArea {
+    overflow-y: auto !important;
+    overflow-x: hidden;
+    scroll-behavior: smooth;
+    display: flex;
+    flex-direction: column;
+}
+
+#messageArea::-webkit-scrollbar {
+    width: 8px;
+}
+
+#messageArea::-webkit-scrollbar-track {
+    background: rgba(15, 23, 42, 0.3);
+    border-radius: 4px;
+}
+
+#messageArea::-webkit-scrollbar-thumb {
+    background: rgba(59, 130, 246, 0.5);
+    border-radius: 4px;
+}
+
+#messageArea::-webkit-scrollbar-thumb:hover {
+    background: rgba(59, 130, 246, 0.7);
+}
+
+/* 聊天视图布局修复 */
+#chatView {
+    height: 100%;
+    max-height: 100%;
+}
+
+#chatView.flex {
+    display: flex !important;
+    flex-direction: column !important;
+}
+
+#chatView.hidden {
+    display: none !important;
+}
+
+/* 确保输入框始终在底部 */
+#chatView > div:last-child {
+    margin-top: auto;
+}
+
+/* 左侧面板滚动优化 */
+#roomList::-webkit-scrollbar,
+#chatNotifPanel::-webkit-scrollbar {
+    width: 6px;
+}
+
+#roomList::-webkit-scrollbar-track,
+#chatNotifPanel::-webkit-scrollbar-track {
+    background: rgba(15, 23, 42, 0.2);
+}
+
+#roomList::-webkit-scrollbar-thumb,
+#chatNotifPanel::-webkit-scrollbar-thumb {
+    background: rgba(59, 130, 246, 0.4);
+    border-radius: 3px;
+}
+
+/* 移除hide-scrollbar在聊天区域的影响 */
+.hide-scrollbar {
+    -ms-overflow-style: none;
+    scrollbar-width: none;
+}
+
+.hide-scrollbar::-webkit-scrollbar {
+    display: none;
+}
+
+/* 但是消息区域要显示滚动条 */
+#messageArea.hide-scrollbar::-webkit-scrollbar {
+    display: block !important;
+    width: 8px;
+}
 .particles-container {
     position: fixed;
     top: 0;
@@ -472,4 +550,174 @@ button[onclick^="quickScore"]:active {
     height: 100%;
     z-index: -1;
     pointer-events: none;
+}
+
+/* 响应式表格容器 - 解决表格内容显示不全 */
+.table-responsive {
+    width: 100%;
+    overflow-x: auto;
+    overflow-y: visible;
+    -webkit-overflow-scrolling: touch;
+}
+
+.table-responsive::-webkit-scrollbar {
+    height: 10px;
+}
+
+.table-responsive::-webkit-scrollbar-track {
+    background: rgba(15, 23, 42, 0.3);
+    border-radius: 5px;
+}
+
+.table-responsive::-webkit-scrollbar-thumb {
+    background: rgba(59, 130, 246, 0.5);
+    border-radius: 5px;
+}
+
+.table-responsive::-webkit-scrollbar-thumb:hover {
+    background: rgba(59, 130, 246, 0.7);
+}
+
+/* 表格优化 - 确保内容完整显示 */
+.table-futuristic {
+    min-width: 100%;
+    white-space: nowrap;
+}
+
+.table-futuristic td,
+.table-futuristic th {
+    padding: 12px 16px;
+    vertical-align: middle;
+    max-width: none;
+}
+
+/* 文字换行优化 */
+.text-wrap {
+    white-space: normal;
+    word-wrap: break-word;
+    word-break: break-word;
+}
+
+.text-ellipsis-2 {
+    display: -webkit-box;
+    -webkit-line-clamp: 2;
+    -webkit-box-orient: vertical;
+    overflow: hidden;
+    text-overflow: ellipsis;
+}
+
+.text-ellipsis-3 {
+    display: -webkit-box;
+    -webkit-line-clamp: 3;
+    -webkit-box-orient: vertical;
+    overflow: hidden;
+    text-overflow: ellipsis;
+}
+
+/* 管理后台内容区域优化 */
+.admin-content-wrapper {
+    width: 100%;
+    max-width: 100%;
+    overflow-x: hidden;
+}
+
+/* 卡片内容区域优化 */
+.card-content-scrollable {
+    max-height: 600px;
+    overflow-y: auto;
+    overflow-x: hidden;
+}
+
+.card-content-scrollable::-webkit-scrollbar {
+    width: 8px;
+}
+
+.card-content-scrollable::-webkit-scrollbar-track {
+    background: rgba(15, 23, 42, 0.2);
+    border-radius: 4px;
+}
+
+.card-content-scrollable::-webkit-scrollbar-thumb {
+    background: rgba(59, 130, 246, 0.4);
+    border-radius: 4px;
+}
+
+/* 移动端优化 */
+@media (max-width: 768px) {
+    .futuristic-card,
+    .futuristic-card-dark {
+        border-radius: 16px;
+        padding: 16px !important;
+    }
+
+    .table-futuristic td,
+    .table-futuristic th {
+        padding: 8px 12px;
+        font-size: 0.875rem;
+    }
+
+    .btn-futuristic,
+    .btn-outline-futuristic {
+        padding: 8px 16px;
+        font-size: 0.875rem;
+    }
+}
+
+/* 图片容器优化 */
+.img-container {
+    width: 100%;
+    max-width: 100%;
+    overflow: hidden;
+    position: relative;
+}
+
+.img-container img {
+    width: 100%;
+    height: auto;
+    object-fit: contain;
+    max-height: 500px;
+}
+
+/* 长文本内容优化 */
+.content-text {
+    line-height: 1.8;
+    word-wrap: break-word;
+    overflow-wrap: break-word;
+}
+
+/* 统计卡片响应式优化 */
+@media (max-width: 640px) {
+    .grid-cols-2 {
+        grid-template-columns: repeat(1, minmax(0, 1fr)) !important;
+    }
+}
+
+/* 侧边栏响应式优化 */
+@media (max-width: 768px) {
+    .sidebar-futuristic {
+        position: relative;
+        width: 100%;
+        border-right: none;
+        border-bottom: 1px solid rgba(102, 126, 234, 0.1);
+    }
+}
+
+/* 防止内容溢出 */
+.overflow-safe {
+    overflow: hidden;
+    text-overflow: ellipsis;
+}
+
+/* 弹性容器优化 */
+.flex-container-safe {
+    display: flex;
+    flex-wrap: wrap;
+    gap: 1rem;
+}
+
+/* 网格容器优化 */
+.grid-container-safe {
+    display: grid;
+    gap: 1rem;
+    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
 }

templates/admin_backup.html

@@ -0,0 +1,61 @@
+{% extends "admin_base.html" %}
+
+{% block title %}数据备份 - 管理后台 - 智联青云{% endblock %}
+
+{% block admin_content %}
+<div class="space-y-8">
+    <div>
+        <h1 class="text-3xl font-extrabold bg-gradient-to-r from-emerald-400 via-teal-400 to-cyan-400 bg-clip-text text-transparent tracking-tight">数据备份</h1>
+        <p class="text-sm text-slate-400 mt-1 font-medium">将服务器端所有数据（用户、杯赛、考试、帖子、聊天等）导出备份</p>
+    </div>
+
+    <div class="grid grid-cols-1 md:grid-cols-2 gap-6">
+        <!-- 完整备份 -->
+        <div class="futuristic-card-dark border-2 border-emerald-500/30 hover:border-emerald-500/50 transition-all overflow-hidden group">
+            <div class="absolute -right-8 -bottom-8 w-32 h-32 bg-emerald-500/20 rounded-full blur-2xl group-hover:bg-emerald-500/30"></div>
+            <div class="relative z-10 p-6">
+                <div class="w-14 h-14 rounded-2xl bg-emerald-500/20 text-emerald-400 flex items-center justify-center text-2xl mb-4 border border-emerald-500/30">
+                    📦
+                </div>
+                <h2 class="text-xl font-bold text-white mb-2">完整备份</h2>
+                <p class="text-sm text-slate-400 mb-4">包含所有数据库表数据（JSON）及上传文件（头像、图片、附件等）</p>
+                <a href="/admin/backup/download?full=1" class="btn-futuristic inline-flex items-center gap-2 px-5 py-2.5">
+                    <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 16v1a3 3 0 003 3h10a3 3 0 003-3v-1m-4-4l-4 4m0 0l-4-4m4 4V4"/></svg>
+                    下载完整备份 (ZIP)
+                </a>
+            </div>
+        </div>
+
+        <!-- 仅数据备份 -->
+        <div class="futuristic-card-dark border-2 border-cyan-500/30 hover:border-cyan-500/50 transition-all overflow-hidden group">
+            <div class="absolute -right-8 -bottom-8 w-32 h-32 bg-cyan-500/20 rounded-full blur-2xl group-hover:bg-cyan-500/30"></div>
+            <div class="relative z-10 p-6">
+                <div class="w-14 h-14 rounded-2xl bg-cyan-500/20 text-cyan-400 flex items-center justify-center text-2xl mb-4 border border-cyan-500/30">
+                    📄
+                </div>
+                <h2 class="text-xl font-bold text-white mb-2">仅数据备份</h2>
+                <p class="text-sm text-slate-400 mb-4">仅导出所有表数据为 JSON 文件，不含上传文件，体积更小</p>
+                <a href="/admin/backup/download?full=0" class="btn-futuristic inline-flex items-center gap-2 px-5 py-2.5 bg-cyan-500/20 text-cyan-400 border border-cyan-500/30 hover:bg-cyan-500/30">
+                    <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4 16v1a3 3 0 003 3h10a3 3 0 003-3v-1m-4-4l-4 4m0 0l-4-4m4 4V4"/></svg>
+                    下载数据备份 (JSON)
+                </a>
+            </div>
+        </div>
+    </div>
+
+    <div class="futuristic-card-dark p-6 border border-amber-500/20 bg-amber-500/5">
+        <div class="flex gap-3">
+            <div class="w-10 h-10 rounded-xl bg-amber-500/20 text-amber-400 flex items-center justify-center flex-shrink-0">ℹ️</div>
+            <div>
+                <h3 class="font-bold text-amber-400 mb-1">备份说明</h3>
+                <ul class="text-sm text-slate-400 space-y-1 list-disc list-inside">
+                    <li>备份包含：用户、杯赛、考试、提交记录、帖子、回复、通知、聊天记录、好友关系等全部数据</li>
+                    <li>完整备份中的 <code class="text-cyan-400">uploads/</code> 目录包含用户上传的头像、考试图片、聊天文件等</li>
+                    <li>建议定期备份，重要操作前请先备份</li>
+                    <li>备份文件请妥善保管，内含敏感信息（如密码哈希）</li>
+                </ul>
+            </div>
+        </div>
+    </div>
+</div>
+{% endblock %}

templates/admin_base.html

@@ -24,7 +24,8 @@
                 ('/admin/exams', '考试管理', 'M9 12h6m-6 4h6m2 5H7a2 2 0 01-2-2V5a2 2 0 012-2h5.586a1 1 0 01.707.293l5.414 5.414a1 1 0 01.293.707V19a2 2 0 01-2 2z'),
                 ('/admin/users', '用户管理', 'M12 4.354a4 4 0 110 5.292M15 21H3v-1a6 6 0 0112 0v1zm0 0h6v-1a6 6 0 00-9-5.197M13 7a4 4 0 11-8 0 4 4 0 018 0z'),
                 ('/admin/posts', '帖子管理', 'M17 8h2a2 2 0 012 2v6a2 2 0 01-2 2h-2v4l-4-4H9a1.994 1.994 0 01-1.414-.586m0 0L11 14h4a2 2 0 002-2V6a2 2 0 00-2-2H5a2 2 0 00-2 2v6a2 2 0 002 2h2v4l.586-.586z'),
-                ('/admin/notifications', '通知管理', 'M15 17h5l-1.405-1.405A2.032 2.032 0 0118 14.158V11a6.002 6.002 0 00-4-5.659V5a2 2 0 10-4 0v.341C7.67 6.165 6 8.388 6 11v3.159c0 .538-.214 1.055-.595 1.436L4 17h5m6 0v1a3 3 0 11-6 0v-1m6 0H9')
+                ('/admin/notifications', '通知管理', 'M15 17h5l-1.405-1.405A2.032 2.032 0 0118 14.158V11a6.002 6.002 0 00-4-5.659V5a2 2 0 10-4 0v.341C7.67 6.165 6 8.388 6 11v3.159c0 .538-.214 1.055-.595 1.436L4 17h5m6 0v1a3 3 0 11-6 0v-1m6 0H9'),
+                ('/admin/backup', '数据备份', 'M4 16v1a3 3 0 003 3h10a3 3 0 003-3v-1m-4-4l-4 4m0 0l-4-4m4 4V4')
             ] %}
 
             {% for path, name, icon in nav_items %}
@@ -51,9 +52,11 @@
 
     <!-- 主体内容区 -->
     <main class="flex-1 min-w-0">
-        <div class="bg-white/80 backdrop-blur-xl rounded-3xl shadow-sm border border-slate-100 p-6 sm:p-8 relative">
+        <div class="bg-white/80 backdrop-blur-xl rounded-3xl shadow-sm border border-slate-100 p-6 sm:p-8 relative overflow-hidden">
             <div class="absolute top-0 right-0 w-64 h-64 bg-indigo-50/30 rounded-bl-full -z-10"></div>
-            {% block admin_content %}{% endblock %}
+            <div class="admin-content-wrapper">
+                {% block admin_content %}{% endblock %}
+            </div>
         </div>
     </main>
 </div>

templates/admin_contests.html

@@ -7,16 +7,16 @@
     <h1 class="text-3xl font-extrabold bg-gradient-to-r from-blue-400 via-purple-400 to-pink-400 bg-clip-text text-transparent">杯赛管理</h1>
 
     <div class="futuristic-card-dark overflow-hidden">
-        <div class="overflow-x-auto">
-            <table class="table-futuristic">
+        <div class="table-responsive">
+            <table class="table-futuristic" style="min-width: 900px;">
                 <thead>
                     <tr>
-                        <th>ID</th>
-                        <th>名称</th>
-                        <th>主办方</th>
-                        <th>状态</th>
-                        <th>开始日期</th>
-                        <th>操作</th>
+                        <th style="min-width: 60px;">ID</th>
+                        <th style="min-width: 200px;">名称</th>
+                        <th style="min-width: 150px;">主办方</th>
+                        <th style="min-width: 120px;">状态</th>
+                        <th style="min-width: 150px;">开始日期</th>
+                        <th style="min-width: 180px;">操作</th>
                     </tr>
                 </thead>
                 <tbody id="contests-tbody">
@@ -30,6 +30,7 @@
 
 {% block scripts %}
 <script>
+const isAdmin = {{ 'true' if user and user.role == 'admin' else 'false' }};
 const statusMap = {
     'upcoming': ['即将开始', 'bg-blue-500/20 text-blue-400 border-blue-500/30'],
     'registering': ['正在报名', 'bg-green-500/20 text-green-400 border-green-500/30'],
@@ -53,16 +54,20 @@ async function loadContests() {
             const [statusText, statusClass] = statusMap[c.status] || ['未知', 'bg-slate-500/20 text-slate-400 border-slate-500/30'];
             const abolishBtn = c.status !== 'abolished'
                 ? `<button onclick="abolishContest(${c.id}, '${c.name.replace(/'/g, "\\'")}')" class="btn-outline-futuristic px-3 py-1 text-xs border-red-500/30 text-red-400 hover:bg-red-500/20 hover:border-red-500/50">废止</button>`
-                : '<span class="text-xs text-red-500">已废止</span>';
+                : '';
+            const deleteBtn = isAdmin && c.status === 'abolished'
+                ? `<button onclick="deleteContest(${c.id}, '${c.name.replace(/'/g, "\\'")}')" class="btn-outline-futuristic px-3 py-1 text-xs border-orange-500/30 text-orange-400 hover:bg-orange-500/20 hover:border-orange-500/50">删除</button>`
+                : '';
             html += `<tr>
                 <td>${c.id}</td>
-                <td class="font-medium text-slate-200">${c.name}</td>
-                <td class="text-slate-400">${c.organizer || '-'}</td>
+                <td class="font-medium text-slate-200" style="max-width: 200px; white-space: normal; word-wrap: break-word;">${c.name}</td>
+                <td class="text-slate-400" style="max-width: 150px; white-space: normal; word-wrap: break-word;">${c.organizer || '-'}</td>
                 <td><span class="badge-futuristic ${statusClass}">${statusText}</span></td>
                 <td class="text-slate-400">${c.start_date || '-'}</td>
                 <td class="space-x-2">
                     <a href="/contests/${c.id}" class="text-xs text-cyan-400 hover:text-cyan-300 hover:underline">查看</a>
                     ${abolishBtn}
+                    ${deleteBtn}
                 </td>
             </tr>`;
         });
@@ -73,7 +78,7 @@ async function loadContests() {
 }
 
 async function abolishContest(id, name) {
-    if (!confirm(`确定要废止杯赛「${name}」吗？\n\n废止后：\n- 该杯赛下所有考试将被关闭\n- 无法再报名或参加考试\n- 数据将保留但杯赛不可恢复`)) return;
+    if (!confirm(`确定要废止杯赛「${name}」吗？\n\n废止后：\n- 该杯赛下所有考试将被关闭\n- 无法再报名或参加考试\n- 数据将保留，可再执行删除彻底移除`)) return;
     try {
         const res = await fetch(`/api/admin/contests/${id}/abolish`, {method: 'POST'});
         const data = await res.json();
@@ -88,6 +93,22 @@ async function abolishContest(id, name) {
     }
 }
 
+async function deleteContest(id, name) {
+    if (!confirm(`确定要彻底删除杯赛「${name}」吗？\n\n删除后：\n- 杯赛将从系统中完全移除\n- 不再显示在首页杯赛数量中\n- 用户无法再看到该杯赛\n- 此操作不可恢复！`)) return;
+    try {
+        const res = await fetch(`/api/admin/contests/${id}/delete`, {method: 'POST'});
+        const data = await res.json();
+        if (data.success) {
+            alert('杯赛已彻底删除');
+            loadContests();
+        } else {
+            alert(data.message || '操作失败');
+        }
+    } catch(e) {
+        alert('网络错误');
+    }
+}
+
 document.addEventListener('DOMContentLoaded', loadContests);
 </script>
 {% endblock %}

templates/admin_dashboard.html

@@ -15,16 +15,16 @@
     </div>
 
     <!-- 统计卡片 -->
-    <div class="grid grid-cols-2 md:grid-cols-4 gap-4 md:gap-6">
+    <div class="grid grid-cols-1 sm:grid-cols-2 md:grid-cols-4 gap-4 md:gap-6">
         <div class="futuristic-card-dark relative overflow-hidden group hover:-translate-y-1 transition-transform">
             <div class="absolute -right-4 -bottom-4 w-24 h-24 bg-cyan-500/20 rounded-full blur-2xl group-hover:bg-cyan-500/30 transition-colors"></div>
             <div class="flex items-center gap-3 mb-3 relative z-10">
                 <div class="w-10 h-10 rounded-xl bg-cyan-500/20 text-cyan-400 flex items-center justify-center shadow-lg shadow-cyan-500/20 border border-cyan-500/30">
                     <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 4.354a4 4 0 110 5.292M15 21H3v-1a6 6 0 0112 0v1zm0 0h6v-1a6 6 0 00-9-5.197M13 7a4 4 0 11-8 0 4 4 0 018 0z"/></svg>
                 </div>
-                <div class="text-sm font-bold text-slate-300">总用户数</div>
+                <div class="text-xs sm:text-sm font-bold text-slate-300">总用户数</div>
             </div>
-            <div id="stat-users" class="text-3xl font-black text-white relative z-10">-</div>
+            <div id="stat-users" class="text-2xl sm:text-3xl font-black text-white relative z-10">-</div>
         </div>
 
         <div class="futuristic-card-dark relative overflow-hidden group hover:-translate-y-1 transition-transform">
@@ -33,9 +33,9 @@
                 <div class="w-10 h-10 rounded-xl bg-purple-500/20 text-purple-400 flex items-center justify-center shadow-lg shadow-purple-500/20 border border-purple-500/30">
                     <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M19 11H5m14 0a2 2 0 012 2v6a2 2 0 01-2 2H5a2 2 0 01-2-2v-6a2 2 0 012-2m14 0V9a2 2 0 00-2-2M5 11V9a2 2 0 012-2m0 0V5a2 2 0 012-2h6a2 2 0 012 2v2M7 7h10"/></svg>
                 </div>
-                <div class="text-sm font-bold text-slate-300">赛事总数</div>
+                <div class="text-xs sm:text-sm font-bold text-slate-300">赛事总数</div>
             </div>
-            <div id="stat-contests" class="text-3xl font-black text-white relative z-10">-</div>
+            <div id="stat-contests" class="text-2xl sm:text-3xl font-black text-white relative z-10">-</div>
         </div>
 
         <div class="futuristic-card-dark relative overflow-hidden group hover:-translate-y-1 transition-transform">
@@ -44,9 +44,9 @@
                 <div class="w-10 h-10 rounded-xl bg-emerald-500/20 text-emerald-400 flex items-center justify-center shadow-lg shadow-emerald-500/20 border border-emerald-500/30">
                     <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 12h6m-6 4h6m2 5H7a2 2 0 01-2-2V5a2 2 0 012-2h5.586a1 1 0 01.707.293l5.414 5.414a1 1 0 01.293.707V19a2 2 0 01-2 2z"/></svg>
                 </div>
-                <div class="text-sm font-bold text-slate-300">考试总数</div>
+                <div class="text-xs sm:text-sm font-bold text-slate-300">考试总数</div>
             </div>
-            <div id="stat-exams" class="text-3xl font-black text-white relative z-10">-</div>
+            <div id="stat-exams" class="text-2xl sm:text-3xl font-black text-white relative z-10">-</div>
         </div>
 
         <div class="futuristic-card-dark relative overflow-hidden group hover:-translate-y-1 transition-transform">
@@ -55,9 +55,9 @@
                 <div class="w-10 h-10 rounded-xl bg-pink-500/20 text-pink-400 flex items-center justify-center shadow-lg shadow-pink-500/20 border border-pink-500/30">
                     <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M17 8h2a2 2 0 012 2v6a2 2 0 01-2 2h-2v4l-4-4H9a1.994 1.994 0 01-1.414-.586m0 0L11 14h4a2 2 0 002-2V6a2 2 0 00-2-2H5a2 2 0 00-2 2v6a2 2 0 002 2h2v4l.586-.586z"/></svg>
                 </div>
-                <div class="text-sm font-bold text-slate-300">社区帖子</div>
+                <div class="text-xs sm:text-sm font-bold text-slate-300">社区帖子</div>
             </div>
-            <div id="stat-posts" class="text-3xl font-black text-white relative z-10">-</div>
+            <div id="stat-posts" class="text-2xl sm:text-3xl font-black text-white relative z-10">-</div>
         </div>
     </div>
 
@@ -105,34 +105,38 @@
             </div>
             <h2 class="text-lg font-bold bg-gradient-to-r from-teal-400 to-emerald-400 bg-clip-text text-transparent">快捷操作</h2>
         </div>
-        <div class="grid grid-cols-2 md:grid-cols-4 lg:grid-cols-7 gap-4">
-            <a href="/admin/contests" class="futuristic-card-dark hover:border-indigo-500/50 hover:shadow-lg hover:shadow-indigo-500/20 hover:-translate-y-1 transition-all text-center group flex flex-col items-center p-5">
-                <div class="w-12 h-12 rounded-xl bg-indigo-500/20 flex items-center justify-center text-2xl mb-3 group-hover:scale-110 transition-transform border border-indigo-500/30">🏆</div>
-                <div class="text-sm font-bold text-slate-300">杯赛管理</div>
+        <div class="grid grid-cols-2 sm:grid-cols-3 md:grid-cols-4 lg:grid-cols-7 gap-3 sm:gap-4">
+            <a href="/admin/contests" class="futuristic-card-dark hover:border-indigo-500/50 hover:shadow-lg hover:shadow-indigo-500/20 hover:-translate-y-1 transition-all text-center group flex flex-col items-center p-4 sm:p-5">
+                <div class="w-10 h-10 sm:w-12 sm:h-12 rounded-xl bg-indigo-500/20 flex items-center justify-center text-xl sm:text-2xl mb-2 sm:mb-3 group-hover:scale-110 transition-transform border border-indigo-500/30">🏆</div>
+                <div class="text-xs sm:text-sm font-bold text-slate-300">杯赛管理</div>
             </a>
-            <a href="/admin/contest-applications" class="futuristic-card-dark hover:border-orange-500/50 hover:shadow-lg hover:shadow-orange-500/20 hover:-translate-y-1 transition-all text-center group flex flex-col items-center p-5">
-                <div class="w-12 h-12 rounded-xl bg-orange-500/20 flex items-center justify-center text-2xl mb-3 group-hover:scale-110 transition-transform border border-orange-500/30">📋</div>
-                <div class="text-sm font-bold text-slate-300">杯赛申请</div>
+            <a href="/admin/contest-applications" class="futuristic-card-dark hover:border-orange-500/50 hover:shadow-lg hover:shadow-orange-500/20 hover:-translate-y-1 transition-all text-center group flex flex-col items-center p-4 sm:p-5">
+                <div class="w-10 h-10 sm:w-12 sm:h-12 rounded-xl bg-orange-500/20 flex items-center justify-center text-xl sm:text-2xl mb-2 sm:mb-3 group-hover:scale-110 transition-transform border border-orange-500/30">📋</div>
+                <div class="text-xs sm:text-sm font-bold text-slate-300">杯赛申请</div>
             </a>
-            <a href="/admin/teacher-applications" class="futuristic-card-dark hover:border-purple-500/50 hover:shadow-lg hover:shadow-purple-500/20 hover:-translate-y-1 transition-all text-center group flex flex-col items-center p-5">
-                <div class="w-12 h-12 rounded-xl bg-purple-500/20 flex items-center justify-center text-2xl mb-3 group-hover:scale-110 transition-transform border border-purple-500/30">👨‍🏫</div>
-                <div class="text-sm font-bold text-slate-300">教师申请</div>
+            <a href="/admin/teacher-applications" class="futuristic-card-dark hover:border-purple-500/50 hover:shadow-lg hover:shadow-purple-500/20 hover:-translate-y-1 transition-all text-center group flex flex-col items-center p-4 sm:p-5">
+                <div class="w-10 h-10 sm:w-12 sm:h-12 rounded-xl bg-purple-500/20 flex items-center justify-center text-xl sm:text-2xl mb-2 sm:mb-3 group-hover:scale-110 transition-transform border border-purple-500/30">👨‍🏫</div>
+                <div class="text-xs sm:text-sm font-bold text-slate-300">教师申请</div>
             </a>
-            <a href="/admin/exams" class="futuristic-card-dark hover:border-emerald-500/50 hover:shadow-lg hover:shadow-emerald-500/20 hover:-translate-y-1 transition-all text-center group flex flex-col items-center p-5">
-                <div class="w-12 h-12 rounded-xl bg-emerald-500/20 flex items-center justify-center text-2xl mb-3 group-hover:scale-110 transition-transform border border-emerald-500/30">📝</div>
-                <div class="text-sm font-bold text-slate-300">考试管理</div>
+            <a href="/admin/exams" class="futuristic-card-dark hover:border-emerald-500/50 hover:shadow-lg hover:shadow-emerald-500/20 hover:-translate-y-1 transition-all text-center group flex flex-col items-center p-4 sm:p-5">
+                <div class="w-10 h-10 sm:w-12 sm:h-12 rounded-xl bg-emerald-500/20 flex items-center justify-center text-xl sm:text-2xl mb-2 sm:mb-3 group-hover:scale-110 transition-transform border border-emerald-500/30">📝</div>
+                <div class="text-xs sm:text-sm font-bold text-slate-300">考试管理</div>
             </a>
-            <a href="/admin/users" class="futuristic-card-dark hover:border-blue-500/50 hover:shadow-lg hover:shadow-blue-500/20 hover:-translate-y-1 transition-all text-center group flex flex-col items-center p-5">
-                <div class="w-12 h-12 rounded-xl bg-blue-500/20 flex items-center justify-center text-2xl mb-3 group-hover:scale-110 transition-transform border border-blue-500/30">👥</div>
-                <div class="text-sm font-bold text-slate-300">用户管理</div>
+            <a href="/admin/users" class="futuristic-card-dark hover:border-blue-500/50 hover:shadow-lg hover:shadow-blue-500/20 hover:-translate-y-1 transition-all text-center group flex flex-col items-center p-4 sm:p-5">
+                <div class="w-10 h-10 sm:w-12 sm:h-12 rounded-xl bg-blue-500/20 flex items-center justify-center text-xl sm:text-2xl mb-2 sm:mb-3 group-hover:scale-110 transition-transform border border-blue-500/30">👥</div>
+                <div class="text-xs sm:text-sm font-bold text-slate-300">用户管理</div>
             </a>
-            <a href="/admin/posts" class="futuristic-card-dark hover:border-amber-500/50 hover:shadow-lg hover:shadow-amber-500/20 hover:-translate-y-1 transition-all text-center group flex flex-col items-center p-5">
-                <div class="w-12 h-12 rounded-xl bg-amber-500/20 flex items-center justify-center text-2xl mb-3 group-hover:scale-110 transition-transform border border-amber-500/30">💬</div>
-                <div class="text-sm font-bold text-slate-300">帖子管理</div>
+            <a href="/admin/posts" class="futuristic-card-dark hover:border-amber-500/50 hover:shadow-lg hover:shadow-amber-500/20 hover:-translate-y-1 transition-all text-center group flex flex-col items-center p-4 sm:p-5">
+                <div class="w-10 h-10 sm:w-12 sm:h-12 rounded-xl bg-amber-500/20 flex items-center justify-center text-xl sm:text-2xl mb-2 sm:mb-3 group-hover:scale-110 transition-transform border border-amber-500/30">💬</div>
+                <div class="text-xs sm:text-sm font-bold text-slate-300">帖子管理</div>
             </a>
-            <a href="/admin/notifications" class="futuristic-card-dark hover:border-rose-500/50 hover:shadow-lg hover:shadow-rose-500/20 hover:-translate-y-1 transition-all text-center group flex flex-col items-center p-5">
-                <div class="w-12 h-12 rounded-xl bg-rose-500/20 flex items-center justify-center text-2xl mb-3 group-hover:scale-110 transition-transform border border-rose-500/30">📢</div>
-                <div class="text-sm font-bold text-slate-300">通知管理</div>
+            <a href="/admin/notifications" class="futuristic-card-dark hover:border-rose-500/50 hover:shadow-lg hover:shadow-rose-500/20 hover:-translate-y-1 transition-all text-center group flex flex-col items-center p-4 sm:p-5">
+                <div class="w-10 h-10 sm:w-12 sm:h-12 rounded-xl bg-rose-500/20 flex items-center justify-center text-xl sm:text-2xl mb-2 sm:mb-3 group-hover:scale-110 transition-transform border border-rose-500/30">📢</div>
+                <div class="text-xs sm:text-sm font-bold text-slate-300">通知管理</div>
+            </a>
+            <a href="/admin/backup" class="futuristic-card-dark hover:border-emerald-500/50 hover:shadow-lg hover:shadow-emerald-500/20 hover:-translate-y-1 transition-all text-center group flex flex-col items-center p-4 sm:p-5">
+                <div class="w-10 h-10 sm:w-12 sm:h-12 rounded-xl bg-emerald-500/20 flex items-center justify-center text-xl sm:text-2xl mb-2 sm:mb-3 group-hover:scale-110 transition-transform border border-emerald-500/30">📦</div>
+                <div class="text-xs sm:text-sm font-bold text-slate-300">数据备份</div>
             </a>
         </div>
     </div>

templates/admin_exams.html

@@ -7,17 +7,17 @@
     <h1 class="text-3xl font-extrabold bg-gradient-to-r from-blue-400 via-purple-400 to-pink-400 bg-clip-text text-transparent">考试管理</h1>
 
     <div class="futuristic-card-dark overflow-hidden">
-        <div class="overflow-x-auto">
-            <table class="table-futuristic">
+        <div class="table-responsive">
+            <table class="table-futuristic" style="min-width: 1000px;">
                 <thead>
                     <tr>
-                        <th>ID</th>
-                        <th>标题</th>
-                        <th>科目</th>
-                        <th>出题人</th>
-                        <th>状态</th>
-                        <th>创建时间</th>
-                        <th>操作</th>
+                        <th style="min-width: 60px;">ID</th>
+                        <th style="min-width: 200px;">标题</th>
+                        <th style="min-width: 100px;">科目</th>
+                        <th style="min-width: 120px;">出题人</th>
+                        <th style="min-width: 100px;">状态</th>
+                        <th style="min-width: 150px;">创建时间</th>
+                        <th style="min-width: 180px;">操作</th>
                     </tr>
                 </thead>
                 <tbody id="exams-tbody"></tbody>
@@ -68,7 +68,7 @@ async function loadExams() {
             const isAvailable = e.status === 'available';
             html += `<tr>
                 <td>${e.id}</td>
-                <td class="font-medium text-slate-200 max-w-xs truncate">${e.title}</td>
+                <td class="font-medium text-slate-200" style="max-width: 200px; white-space: normal; word-wrap: break-word;">${e.title}</td>
                 <td class="text-slate-400">${e.subject || '-'}</td>
                 <td class="text-slate-400">${e.creator_name || '-'}</td>
                 <td><span class="badge-futuristic ${statusClass}">${statusText}</span></td>

templates/admin_posts.html

@@ -19,17 +19,17 @@
     </div>
 
     <div class="futuristic-card-dark overflow-hidden">
-        <div class="overflow-x-auto">
-            <table class="table-futuristic">
+        <div class="table-responsive">
+            <table class="table-futuristic" style="min-width: 1000px;">
                 <thead>
                     <tr>
-                        <th>ID</th>
-                        <th>标题</th>
-                        <th>作者</th>
-                        <th>标签</th>
-                        <th>置顶</th>
-                        <th>发布时间</th>
-                        <th>操作</th>
+                        <th style="min-width: 60px;">ID</th>
+                        <th style="min-width: 250px;">标题</th>
+                        <th style="min-width: 120px;">作者</th>
+                        <th style="min-width: 100px;">标签</th>
+                        <th style="min-width: 100px;">置顶</th>
+                        <th style="min-width: 150px;">发布时间</th>
+                        <th style="min-width: 200px;">操作</th>
                     </tr>
                 </thead>
                 <tbody id="posts-tbody"></tbody>
@@ -84,7 +84,7 @@ async function loadPosts() {
             const tagClass = tagClassMap[p.tag] || 'bg-slate-500/20 text-slate-400 border-slate-500/30';
             html += `<tr>
                 <td>${p.id}</td>
-                <td class="font-medium text-slate-200 max-w-xs truncate">${p.title}</td>
+                <td class="font-medium text-slate-200" style="max-width: 250px; white-space: normal; word-wrap: break-word;">${p.title}</td>
                 <td class="text-slate-400">${p.author}</td>
                 <td><span class="badge-futuristic ${tagClass}">${p.tag || '-'}</span></td>
                 <td>

templates/admin_teacher_applications.html

@@ -31,18 +31,18 @@
 
     <!-- 桌面端表格视图 -->
     <div class="hidden md:block bg-white shadow-sm rounded-lg border border-slate-200 overflow-hidden">
-        <div class="overflow-x-auto">
-            <table class="min-w-full divide-y divide-slate-200">
+        <div class="table-responsive">
+            <table class="min-w-full divide-y divide-slate-200" style="min-width: 1100px;">
                 <thead class="bg-slate-50">
                     <tr>
-                        <th class="px-6 py-3 text-left text-xs font-medium text-slate-500 uppercase tracking-wider">ID</th>
-                        <th class="px-6 py-3 text-left text-xs font-medium text-slate-500 uppercase tracking-wider">申请人</th>
-                        <th class="px-6 py-3 text-left text-xs font-medium text-slate-500 uppercase tracking-wider">杯赛</th>
-                        <th class="px-6 py-3 text-left text-xs font-medium text-slate-500 uppercase tracking-wider">姓名</th>
-                        <th class="px-6 py-3 text-left text-xs font-medium text-slate-500 uppercase tracking-wider">邮箱</th>
-                        <th class="px-6 py-3 text-left text-xs font-medium text-slate-500 uppercase tracking-wider">申请理由</th>
-                        <th class="px-6 py-3 text-left text-xs font-medium text-slate-500 uppercase tracking-wider">申请时间</th>
-                        <th class="px-6 py-3 text-left text-xs font-medium text-slate-500 uppercase tracking-wider">操作</th>
+                        <th class="px-6 py-3 text-left text-xs font-medium text-slate-500 uppercase tracking-wider" style="min-width: 60px;">ID</th>
+                        <th class="px-6 py-3 text-left text-xs font-medium text-slate-500 uppercase tracking-wider" style="min-width: 100px;">申请人</th>
+                        <th class="px-6 py-3 text-left text-xs font-medium text-slate-500 uppercase tracking-wider" style="min-width: 150px;">杯赛</th>
+                        <th class="px-6 py-3 text-left text-xs font-medium text-slate-500 uppercase tracking-wider" style="min-width: 100px;">姓名</th>
+                        <th class="px-6 py-3 text-left text-xs font-medium text-slate-500 uppercase tracking-wider" style="min-width: 150px;">邮箱</th>
+                        <th class="px-6 py-3 text-left text-xs font-medium text-slate-500 uppercase tracking-wider" style="min-width: 200px;">申请理由</th>
+                        <th class="px-6 py-3 text-left text-xs font-medium text-slate-500 uppercase tracking-wider" style="min-width: 150px;">申请时间</th>
+                        <th class="px-6 py-3 text-left text-xs font-medium text-slate-500 uppercase tracking-wider" style="min-width: 150px;">操作</th>
                     </tr>
                 </thead>
                 <tbody id="applications-table-body" class="bg-white divide-y divide-slate-200">
@@ -50,10 +50,10 @@
                     <tr data-id="{{ app.id }}">
                         <td class="px-6 py-4 whitespace-nowrap text-sm text-slate-900">{{ app.id }}</td>
                         <td class="px-6 py-4 whitespace-nowrap text-sm text-slate-900">{{ app.user.name }}</td>
-                        <td class="px-6 py-4 whitespace-nowrap text-sm text-slate-500">{{ app.contest.name }}</td>
+                        <td class="px-6 py-4 text-sm text-slate-500" style="max-width: 150px; white-space: normal; word-wrap: break-word;">{{ app.contest.name }}</td>
                         <td class="px-6 py-4 whitespace-nowrap text-sm text-slate-500">{{ app.name }}</td>
-                        <td class="px-6 py-4 whitespace-nowrap text-sm text-slate-500">{{ app.email }}</td>
-                        <td class="px-6 py-4 text-sm text-slate-500 max-w-xs truncate">{{ app.reason }}</td>
+                        <td class="px-6 py-4 text-sm text-slate-500" style="max-width: 150px; word-wrap: break-word;">{{ app.email }}</td>
+                        <td class="px-6 py-4 text-sm text-slate-500" style="max-width: 200px; white-space: normal; word-wrap: break-word;">{{ app.reason }}</td>
                         <td class="px-6 py-4 whitespace-nowrap text-sm text-slate-500">{{ app.applied_at.strftime('%Y-%m-%d %H:%M') }}</td>
                         <td class="px-6 py-4 whitespace-nowrap text-sm font-medium">
                             <form action="{{ url_for('approve_teacher_application', app_id=app.id) }}" method="post" style="display:inline;">

templates/admin_users.html

@@ -18,17 +18,17 @@
     </div>
 
     <div class="futuristic-card-dark overflow-hidden">
-        <div class="overflow-x-auto">
-            <table class="table-futuristic">
+        <div class="table-responsive">
+            <table class="table-futuristic" style="min-width: 900px;">
                 <thead>
                     <tr>
-                        <th>ID</th>
-                        <th>用户名</th>
-                        <th>邮箱</th>
-                        <th>角色</th>
-                        <th>状态</th>
-                        <th>注册时间</th>
-                        <th>操作</th>
+                        <th style="min-width: 60px;">ID</th>
+                        <th style="min-width: 120px;">用户名</th>
+                        <th style="min-width: 180px;">邮箱</th>
+                        <th style="min-width: 100px;">角色</th>
+                        <th style="min-width: 100px;">状态</th>
+                        <th style="min-width: 150px;">注册时间</th>
+                        <th style="min-width: 180px;">操作</th>
                     </tr>
                 </thead>
                 <tbody id="users-tbody"></tbody>

templates/base.html

@@ -196,6 +196,26 @@
     <!-- 通知面板脚本 -->
     <script>
     (function(){
+        let lastNotifCount = -1;
+        const notifSound = new Audio('data:audio/wav;base64,UklGRl9vT19teleQBAAAAAABAAEARKwAAIhYAQACABAAZGF0YU' + 'tvT19t');
+
+        // 创建通知提示音（简短的叮咚声）
+        function playNotifSound() {
+            try {
+                const ctx = new (window.AudioContext || window.webkitAudioContext)();
+                const osc = ctx.createOscillator();
+                const gain = ctx.createGain();
+                osc.connect(gain);
+                gain.connect(ctx.destination);
+                osc.frequency.setValueAtTime(880, ctx.currentTime);
+                osc.frequency.setValueAtTime(1100, ctx.currentTime + 0.1);
+                gain.gain.setValueAtTime(0.3, ctx.currentTime);
+                gain.gain.exponentialRampToValueAtTime(0.01, ctx.currentTime + 0.3);
+                osc.start(ctx.currentTime);
+                osc.stop(ctx.currentTime + 0.3);
+            } catch(e) {}
+        }
+
         function toggleNotifPanel() {
             const panel = document.getElementById('notifPanel');
             panel.classList.toggle('hidden');
@@ -217,9 +237,14 @@
                 if (d.count > 0) {
                     badge.textContent = d.count > 99 ? '99+' : d.count;
                     badge.classList.remove('hidden');
+                    // 有新通知时播放声音
+                    if (lastNotifCount >= 0 && d.count > lastNotifCount) {
+                        playNotifSound();
+                    }
                 } else {
                     badge.classList.add('hidden');
                 }
+                lastNotifCount = d.count;
             }).catch(()=>{});
         }
         updateNotifBadge();
@@ -274,11 +299,12 @@
         }
 
         function markRead(nid, el) {
-            fetch(`/api/notifications/${nid}/read`, {method:'POST'});
+            fetch(`/api/notifications/${nid}/read`, {method:'POST'}).then(()=>{
+                updateNotifBadge();
+            });
             el.classList.remove('bg-blue-50/50');
             const dot = el.querySelector('.bg-blue-500');
             if (dot) dot.remove();
-            updateNotifBadge();
         }
         window.markRead = markRead;
 
@@ -326,7 +352,7 @@
     </script>
 
     <!-- 浮动聊天气泡 -->
-    <div id="chatBubble" class="fixed bottom-6 right-6 z-40">
+    <div id="chatBubble" class="fixed bottom-6 right-6 z-30">
         <button onclick="toggleMiniChat()" class="w-14 h-14 bg-gradient-to-tr from-primary to-blue-400 text-white rounded-full shadow-lg hover:shadow-xl hover:bg-blue-600 flex items-center justify-center relative transition-all duration-300 hover:scale-110">
             <svg class="w-7 h-7" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 12h.01M12 12h.01M16 12h.01M21 12c0 4.418-4.03 8-9 8a9.863 9.863 0 01-4.255-.949L3 20l1.395-3.72C3.512 15.042 3 13.574 3 12c0-4.418 4.03-8 9-8s9 3.582 9 8z"/></svg>
             <span id="bubbleBadge" class="absolute -top-1 -right-1 bg-red-500 text-white text-xs rounded-full w-5 h-5 flex items-center justify-center hidden">0</span>
@@ -334,7 +360,7 @@
     </div>
 
     <!-- 迷你聊天窗口 -->
-    <div id="miniChat" class="fixed bottom-24 right-6 w-[380px] h-[500px] bg-white rounded-xl shadow-2xl border border-slate-200 z-40 hidden flex flex-col overflow-hidden">
+    <div id="miniChat" class="fixed bottom-24 right-6 w-[380px] h-[500px] bg-white rounded-xl shadow-2xl border border-slate-200 z-30 hidden flex flex-col overflow-hidden">
         <div class="px-4 py-3 bg-primary text-white flex justify-between items-center rounded-t-xl">
             <span class="font-medium text-sm" id="miniTitle">消息</span>
             <div class="flex items-center gap-3">
@@ -359,7 +385,14 @@
     <script src="https://cdn.socket.io/4.7.5/socket.io.min.js"></script>
     <script>
     (function(){
-        if (document.getElementById('chatApp')) return; // chat.html 已有自己的socket
+        // 在聊天页面隐藏浮动气泡（已有完整聊天界面）
+        if (document.getElementById('chatApp')) {
+            var bubble = document.getElementById('chatBubble');
+            if (bubble) bubble.style.display = 'none';
+            var miniC = document.getElementById('miniChat');
+            if (miniC) miniC.style.display = 'none';
+            return;
+        }
         const bubbleSocket = io();
         let miniRoomId = null;
         let miniRooms = [];
@@ -396,6 +429,11 @@
         });
 
         window.toggleMiniChat = function() {
+            // 移动端直接跳转到完整聊天页面
+            if (window.innerWidth < 640) {
+                window.location.href = '/chat';
+                return;
+            }
             const mc = document.getElementById('miniChat');
             mc.classList.toggle('hidden');
             if (!mc.classList.contains('hidden')) {

templates/chat.html

@@ -80,9 +80,9 @@
             </div>
         </div>
         <!-- 聊天视图 -->
-        <div id="chatView" class="flex-1 flex-col hidden z-10 relative">
+        <div id="chatView" class="flex-1 hidden flex-col z-10 relative h-full">
             <!-- 顶栏 -->
-            <div id="chatHeader" class="px-6 py-4 border-b border-white/10 flex items-center justify-between bg-slate-800/60 backdrop-blur-xl sticky top-0 z-20">
+            <div id="chatHeader" class="px-6 py-4 border-b border-white/10 flex items-center justify-between bg-slate-800/60 backdrop-blur-xl flex-shrink-0 z-20">
                 <div class="flex items-center gap-3">
                     <button onclick="mobileBack()" class="sm:hidden w-8 h-8 rounded-lg bg-slate-700/50 text-slate-300 flex items-center justify-center mr-1 border border-white/10" aria-label="返回">
                         <svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 19l-7-7 7-7"/></svg>
@@ -95,6 +95,7 @@
                             <span id="chatName" class="text-lg font-bold text-white tracking-tight"></span>
                             <span id="chatMemberCount" class="badge-futuristic text-xs font-bold px-2 py-0.5 rounded-full"></span>
                         </div>
+                        <div id="peerExamBanner" class="text-xs font-medium text-amber-400 bg-amber-500/20 px-2 py-1 rounded mt-1 hidden">对方正在考试中，请勿打扰</div>
                         <div id="typingIndicator" class="text-[11px] font-medium text-cyan-400 hidden animate-pulse mt-0.5"></div>
                     </div>
                 </div>
@@ -114,9 +115,9 @@
                 </div>
             </div>
             <!-- 消息区域 -->
-            <div id="messageArea" class="flex-1 overflow-y-auto hide-scrollbar px-6 py-4 space-y-5" onscroll="handleScroll()"></div>
+            <div id="messageArea" class="flex-1 overflow-y-auto px-6 py-4 space-y-5" style="overflow-anchor: none;" onscroll="handleScroll()"></div>
             <!-- 引用回复预览 -->
-            <div id="replyPreview" class="px-4 py-3 bg-cyan-500/10 backdrop-blur-md border-t border-cyan-500/30 hidden flex items-center justify-between shadow-inner">
+            <div id="replyPreview" class="px-4 py-3 bg-cyan-500/10 backdrop-blur-md border-t border-cyan-500/30 hidden flex items-center justify-between shadow-inner flex-shrink-0">
                 <div class="flex items-center gap-2 overflow-hidden">
                     <div class="w-1 h-4 bg-cyan-400 rounded-full"></div>
                     <div class="text-sm font-medium text-cyan-300 truncate"><span id="replyToText"></span></div>
@@ -126,7 +127,7 @@
                 </button>
             </div>
             <!-- 输入区域 -->
-            <div class="p-4 bg-slate-800/80 backdrop-blur-xl border-t border-white/10 shadow-[0_-4px_20px_-15px_rgba(0,0,0,0.3)]">
+            <div class="p-4 bg-slate-800/80 backdrop-blur-xl border-t border-white/10 shadow-[0_-4px_20px_-15px_rgba(0,0,0,0.3)] flex-shrink-0 relative">
                 <!-- Emoji 面板 -->
                 <div id="emojiPanel" class="hidden absolute bottom-[calc(100%+10px)] left-4 p-3 futuristic-card-dark backdrop-blur-xl rounded-2xl shadow-xl max-h-48 overflow-y-auto w-64 z-50">
                     <div class="flex flex-wrap gap-2 justify-center" id="emojiGrid"></div>
@@ -162,7 +163,7 @@
                     </div>
 
                     <div class="flex-1 futuristic-card-dark rounded-2xl shadow-sm focus-within:ring-2 focus-within:ring-cyan-500/30 focus-within:border-cyan-400/50 transition-all overflow-hidden">
-                        <textarea id="msgInput" rows="1" placeholder="输入消息... (Enter发送, Shift+Enter换行)" class="flex-1 w-full px-4 py-3.5 text-sm bg-transparent text-white placeholder-slate-500 border-none focus:outline-none focus:ring-0 resize-none max-h-32 min-h-[48px] hide-scrollbar" oninput="handleTyping(); this.style.height = 'auto'; this.style.height = (this.scrollHeight) + 'px';"></textarea>
+                        <textarea id="msgInput" rows="1" placeholder="输入消息... (Enter发送, Shift+Enter换行)" class="flex-1 w-full px-4 py-3.5 text-sm bg-transparent text-white placeholder-slate-500 border-none focus:outline-none focus:ring-0 resize-none max-h-32 min-h-[48px] hide-scrollbar" oninput="handleTyping(); this.style.height = 'auto'; this.style.height = (this.scrollHeight) + 'px';" onkeydown="handleInputKey(event)"></textarea>
                     </div>
 
                     <button onclick="sendMessage()" class="btn-futuristic w-12 h-12 rounded-2xl flex items-center justify-center hover:shadow-lg hover:shadow-cyan-500/30 transform hover:-translate-y-0.5 transition-all flex-shrink-0 group">
@@ -187,7 +188,7 @@
             <div id="friendListForGroup" class="max-h-48 overflow-y-auto space-y-1"></div>
         </div>
         <div class="px-4 py-3 border-t border-white/10">
-            <button onclick="createGroup()" class="btn-futuristic w-full px-4 py-2 text-sm">创建</button>
+            <button id="groupActionBtn" onclick="createGroup()" class="btn-futuristic w-full px-4 py-2 text-sm">创建</button>
         </div>
     </div>
 </div>
@@ -203,8 +204,9 @@
             </div>
         </div>
         <div id="membersList" class="p-4 overflow-y-auto max-h-96 space-y-2"></div>
-        <div id="inviteSection" class="px-4 py-3 border-t border-white/10 hidden">
+        <div id="inviteSection" class="px-4 py-3 border-t border-white/10 hidden space-y-2">
             <button onclick="showInvite()" class="btn-futuristic w-full px-4 py-2 text-sm">邀请好友</button>
+            <button id="dissolveBtn" onclick="dissolveGroup()" class="w-full px-4 py-2 text-sm rounded-lg bg-red-500/20 text-red-400 hover:bg-red-500/30 border border-red-500/30 transition-colors hidden">解散群聊</button>
         </div>
     </div>
 </div>
@@ -274,6 +276,8 @@
 <div id="imagePreview" class="fixed inset-0 bg-black/80 z-[9990] hidden flex items-center justify-center cursor-pointer" onclick="this.classList.add('hidden')">
     <img id="previewImg" class="max-w-[90vw] max-h-[90vh] rounded-lg">
 </div>
+<!-- 轻提示 -->
+<div id="chatToast" class="fixed bottom-24 left-1/2 -translate-x-1/2 px-4 py-2 bg-slate-800 text-amber-400 rounded-lg shadow-lg z-[9995] hidden text-sm font-medium"></div>
 {% endblock %}
 
 {% block scripts %}
@@ -296,6 +300,7 @@ let recordingStartTime = null;
 let recordingInterval = null;
 let searchTimer = null;
 let mentionMembers = [];
+let peerExamStatus = {};  // {user_id: {in_exam, exam_title, end_time}}
 
 function isMobile() { return window.innerWidth < 640; }
 
@@ -370,13 +375,20 @@ function switchTab(tab) {
         notifPanel.classList.remove('hidden');
         tabChat.className = 'flex-1 px-3 py-2.5 text-sm font-medium text-slate-400 border-b-2 border-transparent hover:text-slate-600';
         tabNotif.className = 'flex-1 px-3 py-2.5 text-sm font-medium text-primary border-b-2 border-primary relative';
-        loadNotifications();
+        loadChatNotifications();
+        
+        // Mark all notifications as read when switching to the notification tab
+        fetch('/api/notifications/read-all', { method: 'POST' }).then(() => {
+            checkUnreadNotifs();
+        });
     }
     const badge = document.getElementById('chatNotifBadge');
-    tabNotif.appendChild(badge);
+    if (badge) {
+        tabNotif.appendChild(badge);
+    }
 }
 
-async function loadNotifications() {
+async function loadChatNotifications() {
     const res = await fetch('/api/notifications');
     const data = await res.json();
     if (data.success) {
@@ -401,6 +413,7 @@ function renderNotifications() {
         const isResult = n.type === 'contest_result' || n.type === 'teacher_result';
         const isNewExam = n.type === 'contest_new_exam';
         const isGraded = n.type === 'exam_graded';
+        const isSubmission = n.type === 'exam_submission';
         const isSystem = n.type === 'system_announcement';
         const isPendingContest = isContestApp && n.application_status === 'pending';
         const isPendingTeacher = isTeacherApp && n.application_status === 'pending';
@@ -409,26 +422,26 @@ function renderNotifications() {
         if ((isContestApp || isTeacherApp) && n.application_status === 'approved') statusHtml = '<span class="text-xs text-green-600 font-medium">已批准</span>';
         else if ((isContestApp || isTeacherApp) && n.application_status === 'rejected') statusHtml = '<span class="text-xs text-red-600 font-medium">已拒绝</span>';
         else if (isFriendReq && n.application_status === 'accepted') statusHtml = '<span class="text-xs text-green-600 font-medium">已同意</span>';
-        const icon = isContestApp ? '📋' : isTeacherApp ? '👨‍🏫' : isFriendReq ? '👤' : isResult ? '📢' : isNewExam ? '📝' : isGraded ? '✅' : isSystem ? '📢' : '🔔';
-        const iconBg = isContestApp ? 'bg-orange-100' : isTeacherApp ? 'bg-purple-100' : isFriendReq ? 'bg-blue-100' : isResult ? 'bg-green-100' : isNewExam ? 'bg-indigo-100' : isGraded ? 'bg-emerald-100' : isSystem ? 'bg-amber-100' : 'bg-blue-100';
+        const icon = isContestApp ? '📋' : isTeacherApp ? '👨‍🏫' : isFriendReq ? '👤' : isResult ? '📢' : isNewExam ? '📝' : isSubmission ? '📝' : isGraded ? '✅' : isSystem ? '📢' : '🔔';
+        const iconBg = isContestApp ? 'bg-orange-100' : isTeacherApp ? 'bg-purple-100' : isFriendReq ? 'bg-blue-100' : isResult ? 'bg-green-100' : isNewExam ? 'bg-indigo-100' : isSubmission ? 'bg-amber-100' : isGraded ? 'bg-emerald-100' : isSystem ? 'bg-amber-100' : 'bg-blue-100';
         const clickAction = `showNotifDetail(${n.id})`;
         let actionsHtml = '';
         if (isPendingContest && currentUser.role === 'admin') {
             actionsHtml = `<div class="flex gap-2 mt-2">
-                <button onclick="event.stopPropagation();approveContest(${n.post_id})" class="px-3 py-1 text-xs bg-green-500 text-white rounded hover:bg-green-600">批准</button>
-                <button onclick="event.stopPropagation();rejectContest(${n.post_id})" class="px-3 py-1 text-xs bg-red-500 text-white rounded hover:bg-red-600">拒绝</button>
+                <button onclick="event.stopPropagation();chatApproveContest(${n.post_id})" class="px-3 py-1 text-xs bg-green-500 text-white rounded hover:bg-green-600">批准</button>
+                <button onclick="event.stopPropagation();chatRejectContest(${n.post_id})" class="px-3 py-1 text-xs bg-red-500 text-white rounded hover:bg-red-600">拒绝</button>
             </div>`;
         }
         if (isPendingTeacher && currentUser.role === 'admin' && n.application_id) {
             actionsHtml = `<div class="flex gap-2 mt-2">
-                <button onclick="event.stopPropagation();approveTeacher(${n.application_id})" class="px-3 py-1 text-xs bg-green-500 text-white rounded hover:bg-green-600">批准</button>
-                <button onclick="event.stopPropagation();rejectTeacher(${n.application_id})" class="px-3 py-1 text-xs bg-red-500 text-white rounded hover:bg-red-600">拒绝</button>
+                <button onclick="event.stopPropagation();chatApproveTeacher(${n.application_id})" class="px-3 py-1 text-xs bg-green-500 text-white rounded hover:bg-green-600">批准</button>
+                <button onclick="event.stopPropagation();chatRejectTeacher(${n.application_id})" class="px-3 py-1 text-xs bg-red-500 text-white rounded hover:bg-red-600">拒绝</button>
             </div>`;
         }
         if (isPendingFriend && n.friend_request_id) {
             actionsHtml = `<div class="flex gap-2 mt-2">
-                <button onclick="event.stopPropagation();acceptFriendReq(${n.friend_request_id},${n.id})" class="px-3 py-1 text-xs bg-green-500 text-white rounded hover:bg-green-600">同意</button>
-                <button onclick="event.stopPropagation();rejectFriendReq(${n.friend_request_id},${n.id})" class="px-3 py-1 text-xs bg-red-500 text-white rounded hover:bg-red-600">拒绝</button>
+                <button onclick="event.stopPropagation();chatAcceptFriendReq(${n.friend_request_id},${n.id})" class="px-3 py-1 text-xs bg-green-500 text-white rounded hover:bg-green-600">同意</button>
+                <button onclick="event.stopPropagation();chatRejectFriendReq(${n.friend_request_id},${n.id})" class="px-3 py-1 text-xs bg-red-500 text-white rounded hover:bg-red-600">拒绝</button>
             </div>`;
         }
         return `<div class="px-3 py-3 ${n.read ? '' : 'bg-blue-50'} hover:bg-slate-50 border-b border-slate-100 transition cursor-pointer" onclick="${clickAction}">
@@ -457,65 +470,65 @@ async function markNotifRead(nid, el) {
     }
 }
 
-async function approveContest(appId) {
+async function chatApproveContest(appId) {
     if (!confirm('确定批准该杯赛申请？')) return;
     const res = await fetch(`/api/contest-applications/${appId}/approve`, { method: 'POST' });
     const data = await res.json();
     if (data.success) {
-        loadNotifications();
+        loadChatNotifications();
     } else {
         alert(data.message || '操作失败');
     }
 }
 
-async function rejectContest(appId) {
+async function chatRejectContest(appId) {
     if (!confirm('确定拒绝该杯赛申请？')) return;
     const res = await fetch(`/api/contest-applications/${appId}/reject`, { method: 'POST' });
     const data = await res.json();
     if (data.success) {
-        loadNotifications();
+        loadChatNotifications();
     } else {
         alert(data.message || '操作失败');
     }
 }
 
-async function approveTeacher(appId) {
+async function chatApproveTeacher(appId) {
     if (!confirm('确定批准该教师申请？')) return;
     const res = await fetch(`/api/teacher-applications/${appId}/approve`, { method: 'POST' });
     const data = await res.json();
     if (data.success) {
-        loadNotifications();
+        loadChatNotifications();
     } else {
         alert(data.message || '操作失败');
     }
 }
 
-async function rejectTeacher(appId) {
+async function chatRejectTeacher(appId) {
     if (!confirm('确定拒绝该教师申请？')) return;
     const res = await fetch(`/api/teacher-applications/${appId}/reject`, { method: 'POST' });
     const data = await res.json();
     if (data.success) {
-        loadNotifications();
+        loadChatNotifications();
     } else {
         alert(data.message || '操作失败');
     }
 }
 
-async function acceptFriendReq(reqId, notifId) {
+async function chatAcceptFriendReq(reqId, notifId) {
     const res = await fetch(`/api/friend/accept/${reqId}`, { method: 'POST' });
     const data = await res.json();
     if (data.success) {
-        loadNotifications();
+        loadChatNotifications();
     } else {
         alert(data.message || '操作失败');
     }
 }
 
-async function rejectFriendReq(reqId, notifId) {
+async function chatRejectFriendReq(reqId, notifId) {
     const res = await fetch(`/api/friend/reject/${reqId}`, { method: 'POST' });
     const data = await res.json();
     if (data.success) {
-        loadNotifications();
+        loadChatNotifications();
     } else {
         alert(data.message || '操作失败');
     }
@@ -526,11 +539,24 @@ async function checkUnreadNotifs() {
     const data = await res.json();
     if (data.success) {
         const badge = document.getElementById('chatNotifBadge');
-        if (data.count > 0) {
-            badge.textContent = data.count > 99 ? '99+' : data.count;
-            badge.classList.remove('hidden');
-        } else {
-            badge.classList.add('hidden');
+        if (badge) {
+            if (data.count > 0) {
+                badge.textContent = data.count > 99 ? '99+' : data.count;
+                badge.classList.remove('hidden');
+            } else {
+                badge.classList.add('hidden');
+            }
+        }
+        
+        // Also update the global notification badge if it exists
+        const globalBadge = document.getElementById('notifBadge');
+        if (globalBadge) {
+            if (data.count > 0) {
+                globalBadge.textContent = data.count > 99 ? '99+' : data.count;
+                globalBadge.classList.remove('hidden');
+            } else {
+                globalBadge.classList.add('hidden');
+            }
         }
     }
 }
@@ -559,13 +585,15 @@ function showNotifDetail(nid) {
         'teacher_application': '教师申请', 'teacher_result': '教师审核结果',
         'contest_application': '杯赛申请', 'contest_result': '杯赛通知',
         'contest_new_exam': '新考试', 'exam_graded': '成绩通知',
-        'system_announcement': '系统通知', 'friend_request': '好友申请'
+        'exam_submission': '待批改', 'system_announcement': '系统通知',
+        'friend_request': '好友申请'
     };
     const typeIcons = {
         'teacher_application': '👨‍🏫', 'teacher_result': '🎓',
         'contest_application': '📋', 'contest_result': '🏅',
         'contest_new_exam': '📝', 'exam_graded': '✅',
-        'system_announcement': '📢', 'friend_request': '👤'
+        'exam_submission': '📝', 'system_announcement': '📢',
+        'friend_request': '👤'
     };
 
     document.getElementById('notifDetailIcon').textContent = typeIcons[n.type] || '🔔';
@@ -578,20 +606,25 @@ function showNotifDetail(nid) {
     let actHtml = '';
     if (n.type === 'contest_application' && n.application_status === 'pending' && n.post_id && currentUser.role === 'admin') {
         actHtml = `<div class="flex gap-3">
-            <button onclick="approveContest(${n.post_id})" class="px-4 py-2 text-sm bg-green-500 text-white rounded-md hover:bg-green-600">批准</button>
-            <button onclick="rejectContest(${n.post_id})" class="px-4 py-2 text-sm bg-red-500 text-white rounded-md hover:bg-red-600">拒绝</button>
+            <button onclick="chatApproveContest(${n.post_id})" class="px-4 py-2 text-sm bg-green-500 text-white rounded-md hover:bg-green-600">批准</button>
+            <button onclick="chatRejectContest(${n.post_id})" class="px-4 py-2 text-sm bg-red-500 text-white rounded-md hover:bg-red-600">拒绝</button>
         </div>`;
     } else if (n.type === 'teacher_application' && n.application_status === 'pending' && n.application_id && currentUser.role === 'admin') {
         actHtml = `<div class="flex gap-3">
-            <button onclick="approveTeacher(${n.application_id})" class="px-4 py-2 text-sm bg-green-500 text-white rounded-md hover:bg-green-600">批准</button>
-            <button onclick="rejectTeacher(${n.application_id})" class="px-4 py-2 text-sm bg-red-500 text-white rounded-md hover:bg-red-600">拒绝</button>
+            <button onclick="chatApproveTeacher(${n.application_id})" class="px-4 py-2 text-sm bg-green-500 text-white rounded-md hover:bg-green-600">批准</button>
+            <button onclick="chatRejectTeacher(${n.application_id})" class="px-4 py-2 text-sm bg-red-500 text-white rounded-md hover:bg-red-600">拒绝</button>
         </div>`;
+    } else if (n.type === 'exam_submission' && n.exam_id && n.submission_id) {
+        actHtml = `<a href="/exams/${n.exam_id}/grade/${n.submission_id}" class="btn-futuristic inline-flex items-center gap-2 px-5 py-2.5 text-sm font-medium">
+            <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M11 5H6a2 2 0 00-2 2v11a2 2 0 002 2h11a2 2 0 002-2v-5m-1.414-9.414a2 2 0 112.828 2.828L11.828 15H9v-2.828l8.586-8.586z"/></svg>
+            去批改
+        </a>`;
     } else if (n.type === 'contest_new_exam' || n.type === 'exam_graded') {
-        actHtml = `<a href="/exams/${n.post_id}" class="inline-block px-4 py-2 text-sm bg-primary text-white rounded-md hover:bg-blue-700">查看考试</a>`;
+        actHtml = `<a href="/exams/${n.post_id}" class="btn-futuristic inline-flex items-center gap-2 px-5 py-2.5 text-sm font-medium">查看考试</a>`;
     } else if (n.type === 'friend_request' && n.application_status === 'pending' && n.friend_request_id) {
         actHtml = `<div class="flex gap-3">
-            <button onclick="acceptFriendReq(${n.friend_request_id},${n.id})" class="px-4 py-2 text-sm bg-green-500 text-white rounded-md hover:bg-green-600">同意</button>
-            <button onclick="rejectFriendReq(${n.friend_request_id},${n.id})" class="px-4 py-2 text-sm bg-red-500 text-white rounded-md hover:bg-red-600">拒绝</button>
+            <button onclick="chatAcceptFriendReq(${n.friend_request_id},${n.id})" class="px-4 py-2 text-sm bg-green-500 text-white rounded-md hover:bg-green-600">同意</button>
+            <button onclick="chatRejectFriendReq(${n.friend_request_id},${n.id})" class="px-4 py-2 text-sm bg-red-500 text-white rounded-md hover:bg-red-600">拒绝</button>
         </div>`;
     } else if (n.type === 'friend_request' && n.application_status === 'accepted') {
         actHtml = '<span class="text-sm text-green-600 font-medium">✅ 已同意</span>';
@@ -638,15 +671,18 @@ function renderRooms() {
     const search = document.getElementById('roomSearch').value.toLowerCase();
     const list = document.getElementById('roomList');
     const filtered = rooms.filter(r => (r.name || '').toLowerCase().includes(search));
-    list.innerHTML = filtered.map(r => `
-        <div class="flex items-center gap-3 px-3 py-3 cursor-pointer hover:bg-slate-50 transition ${currentRoomId === r.id ? 'bg-blue-50 border-r-2 border-primary' : ''}" onclick="selectRoom(${r.id})">
-            <div class="w-10 h-10 rounded-full bg-slate-200 flex items-center justify-center flex-shrink-0 overflow-hidden">
+    list.innerHTML = filtered.map(r => {
+        const peerInExam = r.type === 'private' && r.peer_id && peerExamStatus[r.peer_id]?.in_exam;
+        return `
+        <div class="flex items-center gap-3 px-3 py-3 cursor-pointer hover:bg-white/10 transition rounded-xl ${currentRoomId === r.id ? 'bg-cyan-500/15 border-r-2 border-cyan-400' : ''}" onclick="selectRoom(${r.id})">
+            <div class="w-10 h-10 rounded-full bg-slate-700/50 flex items-center justify-center flex-shrink-0 overflow-hidden border border-white/10">
                 ${r.avatar ? `<img src="${r.avatar}" class="w-full h-full object-cover">` :
-                  `<span class="text-sm font-medium text-slate-500">${(r.name || '?')[0]}</span>`}
+                  `<span class="text-sm font-medium text-cyan-400">${(r.name || '?')[0]}</span>`}
             </div>
             <div class="flex-1 min-w-0">
                 <div class="flex justify-between items-center">
-                    <span class="text-sm font-medium text-slate-800 truncate">${escHtml(r.name || '未命名')}</span>
+                    <span class="text-sm font-medium text-white truncate">${escHtml(r.name || '未命名')}</span>
+                    ${peerInExam ? '<span class="text-[10px] text-amber-400 bg-amber-500/30 px-1.5 py-0.5 rounded flex-shrink-0">考试中</span>' : ''}
                     <span class="text-xs text-slate-400 flex-shrink-0">${r.last_message ? formatTime(r.last_message.created_at) : ''}</span>
                 </div>
                 <div class="flex justify-between items-center mt-0.5">
@@ -655,7 +691,7 @@ function renderRooms() {
                 </div>
             </div>
         </div>
-    `).join('');
+    `}).join('');
 }
 
 function getPreview(r) {
@@ -674,6 +710,7 @@ function filterRooms() { renderRooms(); }
 async function selectRoom(roomId) {
     currentRoomId = roomId;
     oldestMsgId = null;
+    markChatRead(roomId);  // 立即标记已读，使聊天气泡消失
     document.getElementById('emptyState').classList.add('hidden');
     // 隐藏通知详情
     const nd = document.getElementById('notifDetailView');
@@ -687,10 +724,32 @@ async function selectRoom(roomId) {
     if (room) {
         document.getElementById('chatName').textContent = room.name || '聊天';
         document.getElementById('chatMemberCount').textContent = room.type !== 'private' ? `(${room.member_count}人)` : '';
+        // 私聊：获取对方考试状态
+        if (room.type === 'private' && room.peer_id) {
+            try {
+                const res = await fetch(`/api/user/${room.peer_id}/exam-status`);
+                const data = await res.json();
+                if (data.success) {
+                    peerExamStatus[room.peer_id] = { in_exam: data.in_exam, exam_title: data.exam_title || '', end_time: data.end_time };
+                }
+            } catch (e) { peerExamStatus[room.peer_id] = { in_exam: false }; }
+        }
+        updateChatHeaderExamStatus(room);
     }
     renderRooms();
     await loadMessages(roomId);
-    markRead(roomId);
+}
+
+function updateChatHeaderExamStatus(room) {
+    const examBanner = document.getElementById('peerExamBanner');
+    if (!examBanner) return;
+    if (room && room.type === 'private' && room.peer_id && peerExamStatus[room.peer_id]?.in_exam) {
+        const info = peerExamStatus[room.peer_id];
+        examBanner.textContent = `${room.name || '对方'} 正在考试中（${info.exam_title || '考试'}），请勿打扰`;
+        examBanner.classList.remove('hidden');
+    } else {
+        examBanner.classList.add('hidden');
+    }
 }
 // ========== 消息加载与渲染 ==========
 async function loadMessages(roomId, beforeId) {
@@ -703,7 +762,10 @@ async function loadMessages(roomId, beforeId) {
     if (!beforeId) {
         area.innerHTML = '';
         data.messages.forEach(m => area.appendChild(createMsgEl(m)));
-        area.scrollTop = area.scrollHeight;
+        // 确保滚动到底部
+        setTimeout(() => {
+            area.scrollTop = area.scrollHeight;
+        }, 100);
     } else {
         const oldH = area.scrollHeight;
         data.messages.forEach((m, i) => area.insertBefore(createMsgEl(m), area.children[i]));
@@ -813,6 +875,7 @@ function sendMessage() {
         reply_to_id: replyToId, mentions: mentionsStr
     });
     input.value = '';
+    input.style.height = 'auto';
     mentionMembers = [];
     cancelReply();
     document.getElementById('emojiPanel').classList.add('hidden');
@@ -925,7 +988,7 @@ function previewImage(url) {
 }
 
 // ========== 标记已读 ==========
-function markRead(roomId) {
+function markChatRead(roomId) {
     fetch(`/api/chat/rooms/${roomId}/read`, { method: 'POST' });
     socket.emit('mark_read', { room_id: roomId });
     const room = rooms.find(r => r.id === roomId);
@@ -939,7 +1002,7 @@ async function showCreateGroup() {
     modal.classList.add('flex');
     // 重置弹窗标题和按钮（防止被邀请好友功能覆盖）
     document.querySelector('#createGroupModal h3').textContent = '创建群聊';
-    const createBtn = document.querySelector('#createGroupModal .bg-primary');
+    const createBtn = document.getElementById('groupActionBtn');
     createBtn.textContent = '创建';
     createBtn.onclick = createGroup;
     document.getElementById('groupName').value = '';
@@ -1032,6 +1095,7 @@ async function showMembers() {
         </div>`;
     }).join('');
     document.getElementById('inviteSection').classList.toggle('hidden', !isGroup);
+    document.getElementById('dissolveBtn').classList.toggle('hidden', !isCreator);
 }
 
 function hideMembers() {
@@ -1040,11 +1104,27 @@ function hideMembers() {
     modal.classList.remove('flex');
 }
 
+async function dissolveGroup() {
+    if (!confirm('确定要解散该群聊？所有聊天记录将被删除，此操作不可撤销。')) return;
+    const res = await fetch(`/api/chat/rooms/${currentRoomId}/dissolve`, {method:'POST'});
+    const data = await res.json();
+    if (data.success) {
+        hideMembers();
+        currentRoomId = null;
+        document.getElementById('chat-header-info').innerHTML = '';
+        document.getElementById('messages').innerHTML = '';
+        document.getElementById('chat-input-area').classList.add('hidden');
+        await loadRooms();
+    } else {
+        alert(data.message || '操作失败');
+    }
+}
+
 async function showInvite() {
     hideMembers();
     showCreateGroup();
     document.querySelector('#createGroupModal h3').textContent = '邀请好友';
-    const btn = document.querySelector('#createGroupModal .bg-primary');
+    const btn = document.getElementById('groupActionBtn');
     btn.textContent = '邀请';
     btn.onclick = async () => {
         const ids = [...document.querySelectorAll('.friend-check:checked')].map(c => parseInt(c.value));
@@ -1337,9 +1417,15 @@ async function stopRecording() {
 socket.on('new_message', (msg) => {
     if (msg.room_id === currentRoomId) {
         const area = document.getElementById('messageArea');
+        const wasAtBottom = area.scrollHeight - area.scrollTop - area.clientHeight < 100;
         area.appendChild(createMsgEl(msg));
-        area.scrollTop = area.scrollHeight;
-        markRead(currentRoomId);
+        // 如果用户在底部或者是自己发的消息，自动滚动到底部
+        if (wasAtBottom || msg.sender_id === currentUser.id) {
+            setTimeout(() => {
+                area.scrollTop = area.scrollHeight;
+            }, 50);
+        }
+        markChatRead(currentRoomId);
     }
     // 更新会话列表
     const room = rooms.find(r => r.id === msg.room_id);
@@ -1411,6 +1497,33 @@ socket.on('error', (data) => {
     if (data.message) alert(data.message);
 });
 
+socket.on('friend_exam_status', (data) => {
+    const uid = data.user_id;
+    peerExamStatus[uid] = {
+        in_exam: data.in_exam,
+        exam_title: data.exam_title || '',
+        end_time: data.end_time
+    };
+    const room = rooms.find(r => r.id === currentRoomId);
+    if (room && room.type === 'private' && room.peer_id === uid) {
+        updateChatHeaderExamStatus(room);
+    }
+    renderRooms();
+});
+
+socket.on('peer_in_exam', (data) => {
+    showToast(data.message || '对方正在考试中，消息将在考试结束后送达');
+});
+
+function showToast(msg) {
+    const el = document.getElementById('chatToast');
+    if (!el) return;
+    el.textContent = msg;
+    el.classList.remove('hidden');
+    clearTimeout(el._toastTimer);
+    el._toastTimer = setTimeout(() => el.classList.add('hidden'), 3000);
+}
+
 // ========== 工具函数 ==========
 function escHtml(s) {
     if (!s) return '';

templates/contest_detail.html

@@ -15,35 +15,35 @@
     </div>
     {% endif %}
     <div class="futuristic-card p-6 p-6">
-        <div class="flex justify-between items-start">
-            <div>
-                <h1 class="text-2xl font-bold bg-gradient-to-r from-cyan-400 to-blue-400 bg-clip-text text-transparent mb-2">
+        <div class="flex flex-col lg:flex-row justify-between items-start gap-4">
+            <div class="flex-1 min-w-0">
+                <h1 class="text-xl sm:text-2xl font-bold bg-gradient-to-r from-cyan-400 to-blue-400 bg-clip-text text-transparent mb-2 break-words">
                     {{ contest.name }}
                     {% if contest.status == 'abolished' %}
                     <span class="ml-2 badge-futuristic text-xs rounded-full">已废止</span>
                     {% endif %}
                 </h1>
-                <div class="flex items-center space-x-4 text-sm text-slate-400">
-                    <span class="flex items-center">
+                <div class="flex flex-wrap items-center gap-3 sm:gap-4 text-xs sm:text-sm text-slate-400">
+                    <span class="flex items-center whitespace-nowrap">
                         <svg class="w-4 h-4 mr-1" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 7V3m8 4V3m-9 8h10M5 21h14a2 2 0 002-2V7a2 2 0 00-2-2H5a2 2 0 00-2 2v12a2 2 0 002 2z"/></svg>
                         {{ contest.start_date }}
                     </span>
-                    <span class="flex items-center" id="participants-count">
+                    <span class="flex items-center whitespace-nowrap" id="participants-count">
                         <svg class="w-4 h-4 mr-1" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 4.354a4 4 0 110 5.292M15 21H3v-1a6 6 0 0112 0v1zm0 0h6v-1a6 6 0 00-9-5.197M13 7a4 4 0 11-8 0 4 4 0 018 0z"/></svg>
                         <span id="participants-value">{{ contest.participants }}</span>人已报名
                     </span>
                 </div>
             </div>
-            <div class="flex space-x-3">
+            <div class="flex flex-wrap gap-3 w-full lg:w-auto">
                 {% if contest.status != 'abolished' %}
                 {% if user %}
                     <button id="register-btn"
                             onclick="toggleRegistration({{ contest.id }})"
-                            class="{% if registered %}btn-outline-futuristic{% else %}btn-futuristic{% endif %} px-6 py-2 font-medium">
+                            class="{% if registered %}btn-outline-futuristic{% else %}btn-futuristic{% endif %} px-4 sm:px-6 py-2 font-medium text-sm whitespace-nowrap">
                         {% if registered %}已报名{% else %}立即报名{% endif %}
                     </button>
                     {% if not is_member %}
-                        <a href="{{ url_for('apply_teacher', contest_id=contest.id) }}" class="btn-outline-futuristic px-6 py-2 font-medium">
+                        <a href="{{ url_for('apply_teacher', contest_id=contest.id) }}" class="btn-outline-futuristic px-4 sm:px-6 py-2 font-medium text-sm whitespace-nowrap">
                             申请成为本杯赛老师
                         </a>
                     {% endif %}
@@ -51,11 +51,11 @@
                         <a href="{{ url_for('contest_question_bank', contest_id=contest.id) }}" class="btn-outline-futuristic px-6 py-2 font-medium">
                             题库管理
                         </a>
-                    {% endif %}
-                    {% if is_owner %}
                         <a href="{{ url_for('exam_create', contest_id=contest.id) }}" class="btn-outline-futuristic px-6 py-2 font-medium">
                             创建考试
                         </a>
+                    {% endif %}
+                    {% if is_owner %}
                         <a href="{{ url_for('admin_teacher_applications') }}" class="btn-outline-futuristic px-6 py-2 font-medium">
                             审批老师申请
                         </a>
@@ -239,6 +239,7 @@
 const CONTEST_ID = {{ contest.id }};
 let canPost = {{ (can_post is defined and can_post) | lower }};
 const isOwner = {{ (is_owner is defined and is_owner) | lower }};
+const isMember = {{ (is_member is defined and is_member) | lower }};
 
 // 报名切换
 async function toggleRegistration(contestId) {
@@ -282,7 +283,7 @@ async function loadPosts() {
         let html = '';
         data.data.forEach(p => {
             html += `
-            <div class="border border-slate-200 rounded-lg p-4 hover:shadow-sm transition-shadow">
+            <div class="border border-slate-200 rounded-lg p-4 hover:shadow-sm transition-shadow cursor-pointer" onclick="window.location.href='/forum?post=${p.id}'">
                 <h3 class="text-base font-semibold bg-gradient-to-r from-cyan-400 to-blue-400 bg-clip-text text-transparent mb-1">${escapeHtml(p.title)}</h3>
                 <p class="text-sm text-slate-300 mb-2">${escapeHtml(p.content)}</p>
                 <div class="flex items-center text-xs text-slate-400 space-x-3">
@@ -378,6 +379,7 @@ async function loadExams() {
             const statusText = e.status === 'available' ? '进行中' : '已关闭';
             const subCount = e.submission_count !== null ? `<span class="text-xs text-slate-400 ml-2">${e.submission_count}人提交</span>` : '';
             const removeBtn = isOwner ? `<button onclick="removeExam(${e.id}, '${escapeHtml(e.title)}')" class="ml-2 px-2 py-1 text-xs text-red-600 border border-red-300 rounded hover:bg-red-50">移除</button>` : '';
+            const toggleBtn = isOwner ? (e.status === 'available' ? `<button onclick="toggleExamStatus(${e.id}, 'closed')" class="ml-2 px-2 py-1 text-xs text-orange-600 border border-orange-300 rounded hover:bg-orange-50">关闭考试</button>` : `<button onclick="toggleExamStatus(${e.id}, 'available')" class="ml-2 px-2 py-1 text-xs text-green-600 border border-green-300 rounded hover:bg-green-50">开放考试</button>`) : '';
             html += `<div class="flex items-center justify-between p-3 border border-slate-200 rounded-lg hover:bg-slate-50">
                 <div class="flex-1 min-w-0">
                     <div class="flex items-center gap-2">
@@ -387,9 +389,10 @@ async function loadExams() {
                     </div>
                     <div class="text-xs text-slate-400 mt-1">${e.subject ? e.subject + ' · ' : ''}满分${e.total_score}分${e.duration ? ' · ' + e.duration + '分钟' : ''}</div>
                 </div>
-                <div class="flex items-center ml-3 shrink-0">
+                <div class="flex items-center gap-2 ml-3 shrink-0">
                     <a href="/exams/${e.id}" class="px-3 py-1 text-xs font-medium text-cyan-400 border border-primary rounded hover:bg-blue-50">进入考试</a>
-                    ${removeBtn}
+                    ${isMember ? `<a href="/exams/${e.id}/submissions" class="px-3 py-1 text-xs font-medium text-amber-500 border border-amber-400 rounded hover:bg-amber-50">批改</a>` : ''}
+                    ${toggleBtn}${removeBtn}
                 </div>
             </div>`;
         });
@@ -413,6 +416,20 @@ async function removeExam(examId, title) {
     } catch(e) { alert('网络错误'); }
 }
 
+// 切换考试状态（关闭/开放）
+function toggleExamStatus(examId, status) {
+    const label = status === 'closed' ? '关闭' : '开放';
+    if (!confirm(`确定${label}该考试？`)) return;
+    fetch(`/api/exams/${examId}/status`, {
+        method: 'POST',
+        headers: {'Content-Type': 'application/json'},
+        body: JSON.stringify({ status: status })
+    }).then(r => r.json()).then(data => {
+        if (data.success) { loadExams(); }
+        else { alert(data.message); }
+    }).catch(() => alert('操作失败'));
+}
+
 // 导入考试弹窗
 function showImportModal() {
     document.getElementById('import-exam-modal').classList.remove('hidden');

templates/contest_question_bank.html

@@ -149,7 +149,7 @@ async function loadQuestions() {
                         <p class="text-sm text-slate-800 mb-2">${escapeHtml(q.content)}</p>`;
             if (q.type === 'choice' && q.options && q.options.length) {
                 html += '<div class="text-sm text-slate-600 space-y-1 ml-4">';
-                q.options.forEach(opt => { html += `<div>${escapeHtml(opt)}</div>`; });
+                q.options.forEach(opt => { html += `<div class="option-text">${opt}</div>`; });
                 html += '</div>';
             }
             if (q.answer) {
@@ -162,6 +162,13 @@ async function loadQuestions() {
             html += `</div></div>`;
         });
         container.innerHTML = html;
+        // 渲染数学公式
+        if (typeof renderMathInElement === 'function') {
+            renderMathInElement(container, {
+                delimiters: [{left:'$$',right:'$$',display:true},{left:'$',right:'$',display:false}],
+                throwOnError: false
+            });
+        }
     } catch(e) {
         document.getElementById('question-list').innerHTML = '<div class="text-center py-8 text-red-500">加载失败</div>';
     }

templates/exam_create.html

@@ -51,9 +51,9 @@
                 <label class="block text-sm font-medium text-slate-700">考试可见性</label>
                 <select id="exam-visibility" class="mt-1 block w-full px-3 py-2 border border-slate-300 rounded-md sm:text-sm">
                     <option value="private">私有（仅自己可见）</option>
-                    <option value="public">公开（所有人可见）</option>
+                    {% if not (is_cup_teacher|default(false)) %}<option value="public">公开（所有人可见）</option>{% endif %}
                 </select>
-                <p class="mt-1 text-xs text-slate-400">私有考试只有您自己可以看到和管理</p>
+                <p class="mt-1 text-xs text-slate-400">{% if is_cup_teacher|default(false) %}杯赛老师仅可创建自己可见的杯赛考试{% else %}私有考试只有您自己可以看到和管理{% endif %}</p>
             </div>
             <div>
                 <label class="block text-sm font-medium text-slate-700">考试密码 <span class="text-slate-400 font-normal">（可选）</span></label>
@@ -104,7 +104,7 @@
     </div>
 </div>
 
-<!-- VIP 弹窗 -->
+<!-- 智能识别功能开发中弹窗 -->
 <div id="vipModal" class="fixed inset-0 z-[999] hidden" onclick="if(event.target===this)closeVipModal()">
     <!-- 背景：深空黑 + 动态星点 -->
     <div class="absolute inset-0 bg-gradient-to-br from-[#0a0015] via-[#0d0d2b] to-[#0a0015]">
@@ -121,56 +121,42 @@
                 <div class="absolute -top-10 left-1/2 -translate-x-1/2 w-40 h-40 bg-cyan-400/10 rounded-full blur-2xl"></div>
                 <!-- 关闭按钮 -->
                 <button onclick="closeVipModal()" class="absolute top-4 right-4 w-8 h-8 flex items-center justify-center rounded-full bg-white/5 hover:bg-white/10 text-white/40 hover:text-white/80 transition text-lg">&times;</button>
-                <!-- 皇冠图标 -->
-                <div class="relative flex justify-center mb-4">
-                    <div class="w-20 h-20 rounded-2xl bg-gradient-to-br from-amber-400 via-yellow-300 to-amber-500 flex items-center justify-center shadow-lg shadow-amber-500/30 vip-crown">
-                        <svg class="w-10 h-10 text-amber-900" fill="currentColor" viewBox="0 0 24 24"><path d="M5 16L3 5l5.5 5L12 4l3.5 6L21 5l-2 11H5zm0 2h14v2H5v-2z"/></svg>
+                <!-- 动漫小人辛苦工作插图 -->
+                <div class="relative flex justify-center mb-6">
+                    <div class="dev-character relative">
+                        <div class="absolute inset-0 flex items-center justify-center">
+                            <div class="w-28 h-28 rounded-full bg-cyan-500/10 blur-2xl"></div>
+                        </div>
+                        <svg class="w-36 h-36 mx-auto relative z-10" viewBox="0 0 120 120" fill="none" xmlns="http://www.w3.org/2000/svg">
+                            <!-- 身体/工作服 -->
+                            <ellipse cx="60" cy="85" rx="28" ry="18" fill="#6366f1"/>
+                            <rect x="32" y="55" width="56" height="35" rx="8" fill="#4f46e5"/>
+                            <!-- 头部 -->
+                            <circle cx="60" cy="38" r="26" fill="#fde68a"/>
+                            <circle cx="60" cy="38" r="26" stroke="#f59e0b" stroke-width="2"/>
+                            <!-- 大眼睛 -->
+                            <ellipse cx="52" cy="35" rx="6" ry="8" fill="#1e293b"/>
+                            <ellipse cx="68" cy="35" rx="6" ry="8" fill="#1e293b"/>
+                            <circle cx="54" cy="33" r="2" fill="white"/>
+                            <circle cx="70" cy="33" r="2" fill="white"/>
+                            <!-- 腮红 -->
+                            <ellipse cx="42" cy="42" rx="4" ry="3" fill="#fda4af" opacity="0.7"/>
+                            <ellipse cx="78" cy="42" rx="4" ry="3" fill="#fda4af" opacity="0.7"/>
+                            <!-- 汗珠（辛苦工作） -->
+                            <ellipse cx="88" cy="28" rx="4" ry="6" fill="#93c5fd" opacity="0.9" class="sweat-drop"/>
+                            <ellipse cx="92" cy="32" rx="3" ry="5" fill="#93c5fd" opacity="0.7" class="sweat-drop"/>
+                            <!-- 锤子/工具（敲代码） -->
+                            <rect x="75" y="45" width="8" height="25" rx="2" fill="#78716c" transform="rotate(-30 79 57)"/>
+                            <rect x="70" y="35" width="18" height="10" rx="2" fill="#a8a29e" transform="rotate(-30 79 40)"/>
+                            <!-- 代码符号 -->
+                            <text x="42" y="72" fill="white" font-size="10" font-family="monospace" font-weight="bold" opacity="0.95">&lt;/&gt;</text>
+                        </svg>
                     </div>
                 </div>
-                <!-- 标题 -->
-                <h2 class="text-center text-2xl font-bold bg-gradient-to-r from-amber-200 via-yellow-100 to-amber-200 bg-clip-text text-transparent mb-1">SVIP 超级会员</h2>
-                <p class="text-center text-purple-300/60 text-xs mb-6 tracking-widest">SUPREME VIP MEMBERSHIP</p>
-                <!-- 功能列表 -->
-                <div class="space-y-3 mb-8">
-                    <div class="flex items-center space-x-3 px-4 py-3 rounded-xl bg-white/[0.03] border border-white/[0.06]">
-                        <span class="flex-shrink-0 w-8 h-8 rounded-lg bg-purple-500/20 flex items-center justify-center text-purple-400">
-                            <svg class="w-4 h-4" fill="none" stroke="currentColor" stroke-width="2" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" d="M9.663 17h4.673M12 3v1m6.364 1.636l-.707.707M21 12h-1M4 12H3m3.343-5.657l-.707-.707m2.828 9.9a5 5 0 117.072 0l-.548.547A3.374 3.374 0 0014 18.469V19a2 2 0 11-4 0v-.531c0-.895-.356-1.754-.988-2.386l-.548-.547z"/></svg>
-                        </span>
-                        <div><p class="text-white/90 text-sm font-medium">AI 智能识别试卷</p><p class="text-white/30 text-xs">PDF 一键导入，公式图形全自动解析</p></div>
-                    </div>
-                    <div class="flex items-center space-x-3 px-4 py-3 rounded-xl bg-white/[0.03] border border-white/[0.06]">
-                        <span class="flex-shrink-0 w-8 h-8 rounded-lg bg-cyan-500/20 flex items-center justify-center text-cyan-400">
-                            <svg class="w-4 h-4" fill="none" stroke="currentColor" stroke-width="2" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" d="M13 10V3L4 14h7v7l9-11h-7z"/></svg>
-                        </span>
-                        <div><p class="text-white/90 text-sm font-medium">量子级 OCR 引擎</p><p class="text-white/30 text-xs">手写体、印刷体、火星文通通拿下</p></div>
-                    </div>
-                    <div class="flex items-center space-x-3 px-4 py-3 rounded-xl bg-white/[0.03] border border-white/[0.06]">
-                        <span class="flex-shrink-0 w-8 h-8 rounded-lg bg-amber-500/20 flex items-center justify-center text-amber-400">
-                            <svg class="w-4 h-4" fill="none" stroke="currentColor" stroke-width="2" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" d="M12 8v4l3 3m6-3a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>
-                        </span>
-                        <div><p class="text-white/90 text-sm font-medium">永久有效 · 无限次数</p><p class="text-white/30 text-xs">一次开通，终身尊享（真的吗？）</p></div>
-                    </div>
-                </div>
-                <!-- 价格区 -->
-                <div class="text-center mb-6">
-                    <div class="inline-flex items-baseline space-x-2 mb-1">
-                        <span class="text-white/30 text-sm line-through decoration-red-400/60">原价 ¥998/年</span>
-                    </div>
-                    <div class="flex items-baseline justify-center">
-                        <span class="text-white/50 text-lg mr-1">¥</span>
-                        <span class="text-5xl font-black bg-gradient-to-r from-cyan-300 via-purple-400 to-pink-400 bg-clip-text text-transparent vip-price">&infin;</span>
-                    </div>
-                    <p class="text-white/20 text-xs mt-2">限时优惠 · 仅剩 <span class="text-amber-400/80">0</span> 个名额</p>
-                </div>
-                <!-- 无支付按钮区域 -->
-                <div class="relative">
-                    <div class="w-full py-3 rounded-xl bg-white/[0.04] border border-dashed border-white/10 text-center">
-                        <p class="text-white/20 text-sm">支付通道维护中，预计恢复时间：</p>
-                        <p class="text-purple-300/40 text-xs mt-1 font-mono tracking-wider">2099年12月31日 23:59:59</p>
-                    </div>
-                </div>
-                <!-- 底部小字 -->
-                <p class="text-center text-white/10 text-[10px] mt-4">本页面仅供观赏，不构成任何消费邀约。如有雷同，纯属巧合。</p>
+                <!-- 主文案 -->
+                <h2 class="text-center text-2xl font-bold bg-gradient-to-r from-cyan-300 via-purple-400 to-pink-400 bg-clip-text text-transparent mb-2">该功能正在开发中</h2>
+                <p class="text-center text-purple-200/90 text-lg font-medium mb-1">敬请期待</p>
+                <p class="text-center text-purple-300/50 text-sm">渔鱼余正在努力敲代码中...</p>
             </div>
         </div>
     </div>
@@ -204,6 +190,20 @@
     0%, 100% { transform: translateY(0); }
     50% { transform: translateY(-6px); }
 }
+.dev-character {
+    animation: workBounce 2s ease-in-out infinite;
+}
+@keyframes workBounce {
+    0%, 100% { transform: translateY(0) scale(1); }
+    50% { transform: translateY(-4px) scale(1.02); }
+}
+.dev-character .sweat-drop {
+    animation: sweatDrop 1.5s ease-in-out infinite;
+}
+@keyframes sweatDrop {
+    0%, 100% { opacity: 0.9; }
+    50% { opacity: 0.4; }
+}
 .vip-price {
     animation: glow 2s ease-in-out infinite alternate;
 }
@@ -229,6 +229,8 @@
 {% endblock %}
 {% block scripts %}
 <script>
+// 从杯赛页面进入时传入的 contest_id，用于创建杯赛考试
+const PAGE_CONTEST_ID = {{ contest_id|default(none)|tojson }};
 // VIP 弹窗
 function showVipModal() {
     const modal = document.getElementById('vipModal');
@@ -585,12 +587,16 @@ function submitExam() {
     }
     const access_password = document.getElementById('exam-password').value.trim();
     const visibility = document.getElementById('exam-visibility').value;
+    const payload = { title, subject, duration, questions, scheduled_start, scheduled_end, score_release_time, access_password, visibility };
+    if (PAGE_CONTEST_ID) payload.contest_id = PAGE_CONTEST_ID;
     fetch('/api/exams', {
         method: 'POST', headers: {'Content-Type':'application/json'},
-        body: JSON.stringify({ title, subject, duration, questions, scheduled_start, scheduled_end, score_release_time, access_password, visibility })
+        body: JSON.stringify(payload)
     }).then(r => r.json()).then(data => {
-        if (data.success) { alert('试卷创建成功！'); window.location.href = '/exams'; }
-        else alert(data.message);
+        if (data.success) {
+            alert('试卷创建成功！');
+            window.location.href = PAGE_CONTEST_ID ? '/contests/' + PAGE_CONTEST_ID : '/exams';
+        } else alert(data.message);
     }).catch(() => alert('创建失败'));
 }
 

templates/exam_detail.html

@@ -86,26 +86,31 @@
     </div>
     {% else %}
     <!-- 顶部信息栏 -->
-    <div class="futuristic-card p-4 sticky top-0 z-20">
-        <div class="flex justify-between items-center">
-            <div>
-                <h1 class="text-lg font-bold bg-gradient-to-r from-purple-600 to-blue-600 bg-clip-text text-transparent">{{ exam.title }}</h1>
-                <div class="mt-1 text-sm text-slate-500">
-                    {{ exam.subject }} · {{ exam.duration }}分钟 · 满分{{ exam.total_score }}分
+    <div class="futuristic-card p-4 sticky top-0 z-20 shadow-lg">
+        <div class="flex flex-col sm:flex-row justify-between items-start sm:items-center gap-3">
+            <div class="flex-1 min-w-0">
+                <h1 class="text-lg sm:text-xl font-bold bg-gradient-to-r from-purple-600 to-blue-600 bg-clip-text text-transparent truncate">{{ exam.title }}</h1>
+                <div class="mt-1 text-xs sm:text-sm text-slate-500 flex flex-wrap gap-2">
+                    <span>{{ exam.subject }}</span>
+                    <span>·</span>
+                    <span>{{ exam.duration }}分钟</span>
+                    <span>·</span>
+                    <span>满分{{ exam.total_score }}分</span>
                     {% if exam.scheduled_end %}
-                    · 截止：{{ exam.scheduled_end.strftime('%m-%d %H:%M') }}
+                    <span>·</span>
+                    <span>截止：{{ exam.scheduled_end.strftime('%m-%d %H:%M') }}</span>
                     {% endif %}
                 </div>
             </div>
-            <div class="flex items-center space-x-4">
-                <div class="text-sm text-slate-500">
+            <div class="flex items-center gap-3 sm:gap-4 flex-wrap">
+                <div class="text-xs sm:text-sm text-slate-500 whitespace-nowrap">
                     <span id="progress-text">0</span>/{{ questions|length }} 已答
                 </div>
-                <div class="flex items-center text-red-600 font-medium">
-                    <svg class="w-5 h-5 mr-1" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 8v4l3 3m6-3a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>
+                <div class="flex items-center text-red-600 font-medium text-sm sm:text-base whitespace-nowrap">
+                    <svg class="w-4 h-4 sm:w-5 sm:h-5 mr-1" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 8v4l3 3m6-3a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>
                     <span id="timer">--:--:--</span>
                 </div>
-                <div id="tab-warning" class="hidden text-xs text-orange-600 bg-orange-50 px-2 py-1 rounded">
+                <div id="tab-warning" class="hidden text-xs text-orange-600 bg-orange-50 px-2 py-1 rounded whitespace-nowrap">
                     切屏 <span id="tab-count">0</span> 次
                 </div>
             </div>
@@ -180,7 +185,7 @@
                                 {% for opt in q.options %}
                                 <label class="flex items-center space-x-3 p-3 rounded-lg border border-slate-200 hover:bg-slate-50 cursor-pointer transition-colors option-label" data-qid="{{ q.id }}">
                                     <input type="radio" name="q-{{ q.id }}" value="{{ ['A','B','C','D'][loop.index0] }}" class="h-4 w-4 text-primary border-slate-300 focus:ring-primary answer-input" data-qid="{{ q.id }}" onchange="onAnswerChange({{ q.id }})">
-                                    <span class="text-slate-700">{{ ['A','B','C','D'][loop.index0] }}. {{ opt }}</span>
+                                    <span class="text-slate-700 option-text">{{ ['A','B','C','D'][loop.index0] }}. {{ opt|safe }}</span>
                                 </label>
                                 {% endfor %}
                             </div>
@@ -237,6 +242,7 @@ const SCHEDULED_END = null;
 let currentIndex = 0;
 let answers = {};
 let tabSwitchCount = 0;
+let examSubmitted = false;  // 提交成功后允许离开
 
 // ===== 图片上传 =====
 function examUpload(qid) {
@@ -282,7 +288,7 @@ async function examUploadFiles(files, qid) {
 function initAnswers() {
     // 优先从服务器草稿恢复
     {% if draft %}
-    const serverDraft = {{ draft.answers | tojson }};
+    const serverDraft = {{ draft.get_answers() | tojson }};
     if (serverDraft && typeof serverDraft === 'object' && Object.keys(serverDraft).length > 0) {
         answers = serverDraft;
         restoreAnswersToForm();
@@ -501,6 +507,9 @@ function doSubmit() {
         body: JSON.stringify({answers})
     }).then(r => r.json()).then(data => {
         if (data.success) {
+            examSubmitted = true;
+            // 退出考试状态，通知好友
+            fetch(`/api/exams/${EXAM_ID}/exit`, { method: 'POST' }).catch(() => {});
             // 清除本地存储
             localStorage.removeItem(STORAGE_KEY);
             localStorage.removeItem(TIMER_KEY);
@@ -518,17 +527,31 @@ function doSubmit() {
     });
 }
 
+// 进入考试：标记状态并通知好友
+fetch(`/api/exams/${EXAM_ID}/enter`, { method: 'POST' }).catch(() => {});
+
+// 禁止中途退出：拦截返回按钮
+history.pushState(null, '', location.href);
+window.addEventListener('popstate', (e) => {
+    if (!examSubmitted) {
+        history.pushState(null, '', location.href);
+        alert('考试进行中，请勿离开！提交前无法退出。');
+    }
+});
+
+// 离开页面提醒（提交成功后允许离开）
+window.addEventListener('beforeunload', (e) => {
+    if (!examSubmitted) {
+        e.preventDefault();
+        e.returnValue = '';
+    }
+});
+
 // 初始化
 initAnswers();
 initTimer();
 initTabDetection();
 showQuestion(0);
-
-// 离开页面提醒
-window.addEventListener('beforeunload', (e) => {
-    e.preventDefault();
-    e.returnValue = '';
-});
 </script>
 {% endif %}
 {% endblock %}

templates/exam_grade.html

@@ -60,7 +60,7 @@
                         {% if is_answer %}border-green-300 bg-green-50
                         {% elif is_selected and not is_answer %}border-red-300 bg-red-50
                         {% else %}border-slate-100{% endif %}">
-                        <span class="text-sm text-slate-700">{{ letter }}. {{ opt }}</span>
+                        <span class="text-sm text-slate-700 option-text">{{ letter }}. {{ opt|safe }}</span>
                         {% if is_selected %}<span class="text-xs {% if is_answer %}text-green-600{% else %}text-red-500{% endif %} font-medium">← 考生选择</span>{% endif %}
                         {% if is_answer %}<span class="text-xs text-green-600 font-medium">✓ 正确</span>{% endif %}
                     </div>
@@ -71,6 +71,18 @@
                         {% else %}
                         <span class="text-red-500 font-medium">0分</span>
                         {% endif %}
+                        <span class="text-slate-400 ml-2">（可人工修改）</span>
+                    </div>
+                    <div class="flex items-center gap-3 mt-2">
+                        <label class="text-sm text-slate-600">给分：</label>
+                        <input type="number" id="score-{{ q.id }}" min="0" max="{{ q.score }}"
+                            value="{{ question_scores.get(q.id|string, (q.score if answers.get(q.id|string,'') == q.get('answer','') else 0)) }}"
+                            class="grade-score w-20 px-2 py-1 border border-slate-300 rounded text-sm" data-max="{{ q.score }}" data-qid="{{ q.id }}">
+                        <span class="text-sm text-slate-400">/ {{ q.score }}</span>
+                        <div class="flex space-x-1">
+                            <button type="button" onclick="quickScore('{{ q.id }}', 0)" class="px-2 py-0.5 text-xs rounded border border-red-200 text-red-600 hover:bg-red-50">0分</button>
+                            <button type="button" onclick="quickScore('{{ q.id }}', {{ q.score }})" class="px-2 py-0.5 text-xs rounded border border-green-200 text-green-600 hover:bg-green-50">满分</button>
+                        </div>
                     </div>
                 </div>
                 {% else %}
@@ -105,6 +117,9 @@
                 </div>
                 {% endif %}
             </div>
+        </div>
+    </div>
+    {% endfor %}
 
     <div class="flex justify-between items-center bg-white shadow-sm rounded-lg p-6 border border-slate-200 sticky bottom-4">
         <div class="text-lg font-medium text-slate-900">总分：<span id="total-score" class="text-primary">0</span> / {{ exam.total_score }}</div>
@@ -126,21 +141,7 @@ function quickScore(qid, score) {
 
 function recalcTotal() {
     let total = 0;
-    // 选择题自动得分
-    {% for q in questions %}
-    {% if q.type == 'choice' %}
-    {% if answers.get(q.id|string,'') == q.get('answer','') %}
-    total += {{ q.score }};
-    {% endif %}
-    {% elif q.type == 'fill' %}
-    {% set student_ans = answers.get(q.id|string,'').strip() %}
-    {% set correct_answers = q.get('answer','').split('|') %}
-    {% if student_ans in correct_answers %}
-    total += {{ q.score }};
-    {% endif %}
-    {% endif %}
-    {% endfor %}
-    // 主观题手动得分
+    // 所有题目得分（客观题预填自动判分，教师可人工修改）
     document.querySelectorAll('.grade-score').forEach(input => {
         total += parseInt(input.value) || 0;
     });
@@ -155,23 +156,8 @@ recalcTotal();
 function submitGrade() {
     const scores = {};
     {% for q in questions %}
-    {% if q.type == 'choice' %}
-    {% if answers.get(q.id|string,'') == q.get('answer','') %}
-    scores['{{ q.id }}'] = {{ q.score }};
-    {% else %}
-    scores['{{ q.id }}'] = 0;
-    {% endif %}
-    {% elif q.type == 'fill' %}
-    {% set student_ans = answers.get(q.id|string,'').strip() %}
-    {% set correct_answers = q.get('answer','').split('|') %}
-    {% if student_ans in correct_answers %}
-    scores['{{ q.id }}'] = {{ q.score }};
-    {% else %}
-    scores['{{ q.id }}'] = 0;
-    {% endif %}
-    {% else %}
-    scores['{{ q.id }}'] = parseInt(document.getElementById('score-{{ q.id }}').value) || 0;
-    {% endif %}
+    const inp{{ q.id }} = document.getElementById('score-{{ q.id }}');
+    scores['{{ q.id }}'] = inp{{ q.id }} ? (parseInt(inp{{ q.id }}.value) || 0) : 0;
     {% endfor %}
     fetch('/api/exams/{{ exam.id }}/grade/{{ submission.id }}', {
         method:'POST', headers:{'Content-Type':'application/json'},

templates/exam_list.html

@@ -110,6 +110,8 @@
 
                     {% if exam.status == 'closed' %}
                     <span class="badge-futuristic absolute top-4 right-4 bg-slate-900/50 backdrop-blur-md text-slate-300 border-slate-700/50">已关闭</span>
+                    {% elif exam.scheduled_end and now and now > exam.scheduled_end %}
+                    <span class="badge-futuristic absolute top-4 right-4 bg-slate-900/50 backdrop-blur-md text-slate-300 border-slate-700/50">已结束</span>
                     {% else %}
                     <span class="badge-futuristic absolute top-4 right-4 bg-white/90 backdrop-blur-md text-cyan-600 border-cyan-500/30">
                         <span class="w-1.5 h-1.5 rounded-full bg-cyan-500 mr-1.5 animate-pulse"></span>进行中
@@ -193,12 +195,12 @@
                         {% endif %}
                     </div>
                     
-                    {% if user and (user.role == 'admin' or user.role == 'teacher') %}
+                    {% if user and can_grade_exam(user, exam) %}
                     <div class="mt-4 pt-3 border-t border-cyan-500/20 flex flex-wrap gap-2 justify-end">
                         <a href="/exams/{{ exam.id }}/submissions" class="px-3 py-1.5 bg-slate-800/50 text-slate-300 hover:bg-slate-700/50 hover:text-slate-200 rounded-lg text-xs font-medium transition-colors border border-cyan-500/30">提交情况</a>
                         <a href="/exams/{{ exam.id }}/print" class="px-3 py-1.5 bg-slate-800/50 text-slate-300 hover:bg-slate-700/50 hover:text-slate-200 rounded-lg text-xs font-medium transition-colors border border-cyan-500/30">打印试卷</a>
 
-                        {% if user.role == 'admin' or exam.creator_id == user.id %}
+                        {% if user.role == 'admin' or exam.creator_id == user.id or (exam.contest_id and exam.contest_id in cup_owner_contest_ids) %}
                             {% if exam.status == 'available' %}
                             <button onclick="toggleExamStatus({{ exam.id }}, 'closed')" class="px-3 py-1.5 bg-orange-500/20 text-orange-400 hover:bg-orange-500/30 rounded-lg text-xs font-medium transition-colors border border-orange-500/30">关闭考试</button>
                             {% else %}

templates/exam_print.html

@@ -25,7 +25,14 @@
         .footer { text-align: center; margin-top: 30px; font-size: 12px; color: #666; border-top: 1px solid #ccc; padding-top: 10px; }
         .print-btn { position: fixed; top: 20px; right: 20px; padding: 10px 24px; background: #3b82f6; color: #fff; border: none; border-radius: 6px; cursor: pointer; font-size: 14px; z-index: 100; }
         .print-btn:hover { background: #2563eb; }
+        .q-images { margin: 8px 0 4px 25px; }
+        .q-images img { max-height: 200px; max-width: 100%; border: 1px solid #ccc; margin: 4px 4px 4px 0; }
     </style>
+    <!-- KaTeX 数学公式渲染 -->
+    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/katex@0.16.11/dist/katex.min.css">
+    <script src="https://cdn.jsdelivr.net/npm/katex@0.16.11/dist/katex.min.js"></script>
+    <script defer src="https://cdn.jsdelivr.net/npm/katex@0.16.11/dist/contrib/auto-render.min.js"
+        onload="renderMathInElement(document.body,{delimiters:[{left:'$$',right:'$$',display:true},{left:'$',right:'$',display:false}],throwOnError:false});"></script>
 </head>
 <body>
     <button class="print-btn no-print" onclick="window.print()">打印 / 导出PDF</button>
@@ -61,10 +68,17 @@
     <div class="question">
         <span class="q-num">{{ loop.index }}.</span> {{ q.content }}
         <span class="q-score">（{{ q.score }}分）</span>
+        {% if q.get('images') %}
+        <div class="q-images">
+            {% for img in q.images %}
+            <img src="{{ img }}" alt="题目图片">
+            {% endfor %}
+        </div>
+        {% endif %}
         {% if q.options %}
         <div class="options">
             {% for opt in q.options %}
-            <div class="opt">{{ ['A','B','C','D'][loop.index0] }}. {{ opt }}</div>
+            <div class="opt">{{ ['A','B','C','D'][loop.index0] }}. {{ opt|safe }}</div>
             {% endfor %}
         </div>
         {% endif %}
@@ -78,6 +92,13 @@
     <div class="question">
         <span class="q-num">{{ loop.index }}.</span> {{ q.content }}
         <span class="q-score">（{{ q.score }}分）</span>
+        {% if q.get('images') %}
+        <div class="q-images">
+            {% for img in q.images %}
+            <img src="{{ img }}" alt="题目图片">
+            {% endfor %}
+        </div>
+        {% endif %}
         <div class="answer-area">
             <div class="answer-line"></div>
         </div>
@@ -91,6 +112,13 @@
     <div class="question">
         <span class="q-num">{{ loop.index }}.</span> {{ q.content }}
         <span class="q-score">（{{ q.score }}分）</span>
+        {% if q.get('images') %}
+        <div class="q-images">
+            {% for img in q.images %}
+            <img src="{{ img }}" alt="题目图片">
+            {% endfor %}
+        </div>
+        {% endif %}
         <div class="answer-area">
             {% for i in range(8) %}
             <div class="answer-line"></div>

templates/exam_result.html

@@ -2,43 +2,43 @@
 {% block title %}考试结果 - 智联青云{% endblock %}
 {% block content %}
 <div class="max-w-4xl mx-auto space-y-6">
-    <div class="flex justify-between items-center">
-        <h1 class="text-2xl font-bold bg-gradient-to-r from-purple-600 to-blue-600 bg-clip-text text-transparent">考试结果</h1>
+    <div class="flex flex-col sm:flex-row justify-between items-start sm:items-center gap-3">
+        <h1 class="text-xl sm:text-2xl font-bold bg-gradient-to-r from-purple-600 to-blue-600 bg-clip-text text-transparent">考试结果</h1>
         <a href="/exams" class="text-sm text-slate-500 hover:text-slate-700">← 返回列表</a>
     </div>
-    <div class="futuristic-card p-6">
-        <h2 class="text-xl font-bold bg-gradient-to-r from-purple-600 to-blue-600 bg-clip-text text-transparent">{{ exam.title }}</h2>
-        <div class="mt-2 flex items-center text-sm text-slate-500 space-x-4">
+    <div class="futuristic-card p-4 sm:p-6">
+        <h2 class="text-lg sm:text-xl font-bold bg-gradient-to-r from-purple-600 to-blue-600 bg-clip-text text-transparent break-words">{{ exam.title }}</h2>
+        <div class="mt-2 flex flex-wrap items-center text-xs sm:text-sm text-slate-500 gap-2 sm:gap-4">
             <span>{{ exam.subject }}</span>
             <span>满分{{ exam.total_score }}分</span>
-            <span>提交时间：{{ submission.submitted_at }}</span>
+            <span class="break-all">提交时间：{{ submission.submitted_at }}</span>
         </div>
         <div class="mt-4 p-4 rounded-lg {% if score_hidden %}bg-blue-50 border border-blue-200{% elif submission.graded %}bg-green-50 border border-green-200{% else %}bg-yellow-50 border border-yellow-200{% endif %}">
             {% if score_hidden %}
-            <div class="text-lg font-medium text-blue-700">成绩尚未公布</div>
-            <div class="text-sm text-blue-600 mt-1">成绩将于 {{ exam.score_release_time.strftime('%Y年%m月%d日 %H:%M') }} 公布</div>
+            <div class="text-base sm:text-lg font-medium text-blue-700">成绩尚未公布</div>
+            <div class="text-xs sm:text-sm text-blue-600 mt-1 break-words">成绩将于 {{ exam.score_release_time.strftime('%Y年%m月%d日 %H:%M') }} 公布</div>
             {% elif submission.graded %}
-            <div class="text-3xl font-bold text-green-700">{{ submission.score }} <span class="text-lg font-normal text-green-600">/ {{ exam.total_score }}</span></div>
-            <div class="text-sm text-green-600 mt-1">批改人：{{ submission.graded_by }}</div>
+            <div class="text-2xl sm:text-3xl font-bold text-green-700">{{ submission.score }} <span class="text-base sm:text-lg font-normal text-green-600">/ {{ exam.total_score }}</span></div>
+            <div class="text-xs sm:text-sm text-green-600 mt-1">批改人：{{ submission.graded_by }}</div>
             {% else %}
-            <div class="text-lg font-medium text-yellow-700">待批改</div>
-            <div class="text-sm text-yellow-600">选择题已自动批改得分：{{ submission.score }}分，主观题等待老师批改</div>
+            <div class="text-base sm:text-lg font-medium text-yellow-700">待批改</div>
+            <div class="text-xs sm:text-sm text-yellow-600 break-words">选择题已自动批改得分：{{ submission.score }}分，主观题等待老师批改</div>
             {% endif %}
         </div>
     </div>
     {% for q in questions %}
-    <div class="futuristic-card p-6">
-        <div class="flex items-start space-x-4">
-            <span class="flex-shrink-0 w-8 h-8 bg-gradient-to-br from-purple-500 to-blue-500 rounded-full flex items-center justify-center text-white font-medium">{{ loop.index }}</span>
-            <div class="flex-1 space-y-3">
-                <div class="flex justify-between">
-                    <p class="text-lg text-slate-900">{{ q.content }}</p>
-                    <span class="text-sm text-slate-400 whitespace-nowrap ml-4">（{{ q.score }}分）</span>
+    <div class="futuristic-card p-4 sm:p-6">
+        <div class="flex items-start space-x-3 sm:space-x-4">
+            <span class="flex-shrink-0 w-7 h-7 sm:w-8 sm:h-8 bg-gradient-to-br from-purple-500 to-blue-500 rounded-full flex items-center justify-center text-white font-medium text-sm">{{ loop.index }}</span>
+            <div class="flex-1 space-y-3 min-w-0">
+                <div class="flex flex-col sm:flex-row sm:justify-between gap-2">
+                    <p class="text-base sm:text-lg text-slate-900 break-words">{{ q.content }}</p>
+                    <span class="text-xs sm:text-sm text-slate-400 whitespace-nowrap">（{{ q.score }}分）</span>
                 </div>
                 {% if q.get('images') %}
                 <div class="flex flex-wrap gap-2">
                     {% for img in q.images %}
-                    <img src="{{ img }}" class="max-h-48 rounded border border-slate-200 cursor-pointer" onclick="window.open(this.src)" alt="题目图片">
+                    <img src="{{ img }}" class="max-h-32 sm:max-h-48 rounded border border-slate-200 cursor-pointer max-w-full" onclick="window.open(this.src)" alt="题目图片">
                     {% endfor %}
                 </div>
                 {% endif %}
@@ -57,7 +57,7 @@
                         {% else %}
                         <div class="w-5 h-5"></div>
                         {% endif %}
-                        <span class="text-slate-700">{{ letter }}. {{ opt }}</span>
+                        <span class="text-slate-700 option-text">{{ letter }}. {{ opt|safe }}</span>
                         {% if is_answer %}<span class="badge-futuristic text-xs ml-2">✓ 正确答案</span>{% endif %}
                     </div>
                     {% endfor %}
@@ -85,4 +85,15 @@
     </div>
     {% endfor %}
 </div>
+{% endblock %}
+{% block scripts %}
+<script>
+// 渲染页面中的数学公式
+if (typeof renderMathInElement === 'function') {
+    renderMathInElement(document.body, {
+        delimiters: [{left:'$$',right:'$$',display:true},{left:'$',right:'$',display:false}],
+        throwOnError: false
+    });
+}
+</script>
 {% endblock %}

templates/forum.html

@@ -7,9 +7,6 @@
 .toast{position:fixed;top:20px;right:20px;z-index:9999;padding:12px 20px;border-radius:8px;color:#fff;font-size:14px;animation:slideIn .3s ease;box-shadow:0 4px 12px rgba(0,0,0,.15)}
 .toast-success{background:#10b981}.toast-error{background:#ef4444}.toast-info{background:#3b82f6}
 @keyframes slideIn{from{transform:translateX(100%);opacity:0}to{transform:translateX(0);opacity:1}}
-.reaction-btn{transition:all .2s;cursor:pointer;padding:2px 8px;border-radius:20px;border:1px solid #e2e8f0;font-size:13px;display:inline-flex;align-items:center;gap:3px}
-.reaction-btn:hover{transform:scale(1.15);border-color:#93c5fd;background:#eff6ff}
-.reaction-btn.active{background:#dbeafe;border-color:#60a5fa}
 .poll-bar{height:28px;border-radius:6px;background:#f1f5f9;overflow:hidden;position:relative;margin:4px 0}
 .poll-fill{height:100%;border-radius:6px;background:linear-gradient(90deg,#3b82f6,#60a5fa);transition:width .6s ease;display:flex;align-items:center;padding:0 10px;font-size:12px;color:#fff;font-weight:500;min-width:fit-content}
 .poll-bar.voted .poll-fill{background:linear-gradient(90deg,#10b981,#34d399)}
@@ -307,7 +304,7 @@
 <script>
 const CU = {{ user | tojson if user else 'null' }};
 let curTag = '全部';
-const REACTIONS = {like:'👍',love:'❤️',haha:'😂',wow:'😮',sad:'😢',angry:'😡'};
+const REACTIONS = {};
 const TAG_ICONS = {'官方公告':'📢','题目讨论':'📐','经验分享':'💡','求助答疑':'🙋','闲聊灌水':'☕'};
 const TAG_COLORS = {'官方公告':'red','题目讨论':'blue','经验分享':'green','求助答疑':'yellow','闲聊灌水':'purple'};
 
@@ -350,6 +347,9 @@ function insEmoji(em) {
 // 初始化富文本编辑器
 document.addEventListener('DOMContentLoaded', function() {
     new RichEditor('new-content');
+    const params = new URLSearchParams(window.location.search);
+    const postId = params.get('post');
+    if (postId) openPost(parseInt(postId));
 });
 
 // ===== 图片上传 =====
@@ -443,12 +443,7 @@ function renderPosts(posts) {
     posts.forEach(p => {
         const tc = TAG_COLORS[p.tag] || 'slate';
         const ti = TAG_ICONS[p.tag] || '📋';
-        const reactions = p.reactions || {};
-        let reactHtml = '';
-        for (const [k, v] of Object.entries(reactions)) {
-            if (v > 0) reactHtml += `<span class="inline-flex items-center gap-1 text-xs bg-slate-50 border border-slate-100 px-2 py-0.5 rounded-md text-slate-600">${REACTIONS[k]||k} ${v}</span>`;
-        }
-        
+
         // 生成纯文本内容用于预览
         let cleanContent = p.content.replace(/\[img:[^\]]+\]/g, '[图片]');
 
@@ -459,8 +454,11 @@ function renderPosts(posts) {
 
             <div class="hidden sm:flex flex-col items-center gap-3 flex-shrink-0" onclick="event.stopPropagation()">
                 <!-- 游戏化头像与等级 -->
-                <div class="relative w-14 h-14 rounded-2xl bg-gradient-to-br from-indigo-100 to-purple-100 flex items-center justify-center text-indigo-600 font-bold border-2 border-white shadow-md transform group-hover:rotate-6 transition-transform z-10">
-                    <span class="text-xl">${esc(p.author.charAt(0))}</span>
+                <div class="relative w-14 h-14 rounded-2xl ${p.author_avatar ? '' : 'bg-gradient-to-br from-indigo-100 to-purple-100'} flex items-center justify-center text-indigo-600 font-bold border-2 border-white shadow-md transform group-hover:rotate-6 transition-transform z-10 overflow-hidden">
+                    ${p.author_avatar ?
+                        `<img src="${p.author_avatar}" alt="${esc(p.author)}" class="w-full h-full object-cover">` :
+                        `<span class="text-xl">${esc(p.author.charAt(0))}</span>`
+                    }
                     ${p.is_official ?
                     '<div class="absolute -bottom-2 -right-2 bg-gradient-to-r from-red-500 to-rose-600 text-white text-[9px] font-black px-1.5 py-0.5 rounded-md shadow-sm border border-white">官方</div>' :
                     '<div class="absolute -bottom-1.5 -right-1.5 bg-slate-800 text-white text-[9px] font-bold px-1.5 py-0.5 rounded-full shadow-sm border border-white">Lv.' + authorLevel + '</div>'}
@@ -488,7 +486,7 @@ function renderPosts(posts) {
                 <div class="mt-auto flex flex-col sm:flex-row sm:items-center justify-between gap-3 pt-4 border-t border-slate-100/60">
                     <div class="flex items-center gap-3">
                         <span class="text-sm font-bold text-slate-800 hover:text-indigo-600 transition-colors cursor-pointer" onclick="event.stopPropagation();showProfile('${p.author_id}')">${esc(p.author)}</span>
-                        ${!p.is_official ? `<span class="text-[10px] text-slate-400 flex items-center gap-1 bg-slate-50 px-2 py-0.5 rounded-md border border-slate-100"><svg class="w-3 h-3 text-amber-400" fill="currentColor" viewBox="0 0 20 20"><path d="M9.049 2.927c.3-.921 1.603-.921 1.902 0l1.07 3.292a1 1 0 00.95.69h3.462c.969 0 1.371 1.24.588 1.81l-2.8 2.034a1 1 0 00-.364 1.118l1.07 3.292c.3.921-.755 1.688-1.54 1.118l-2.8-2.034a1 1 0 00-1.175 0l-2.8 2.034c-.784.57-1.838-.197-1.539-1.118l1.07-3.292a1 1 0 00-.364-1.118L2.98 8.72c-.783-.57-.38-1.81.588-1.81h3.461a1 1 0 00.951-.69l1.07-3.292z"/></svg>Lv.${randomLv}</span>` : ''}
+                        ${!p.is_official ? `<span class="text-[10px] text-slate-400 flex items-center gap-1 bg-slate-50 px-2 py-0.5 rounded-md border border-slate-100"><svg class="w-3 h-3 text-amber-400" fill="currentColor" viewBox="0 0 20 20"><path d="M9.049 2.927c.3-.921 1.603-.921 1.902 0l1.07 3.292a1 1 0 00.95.69h3.462c.969 0 1.371 1.24.588 1.81l-2.8 2.034a1 1 0 00-.364 1.118l1.07 3.292c.3.921-.755 1.688-1.54 1.118l-2.8-2.034a1 1 0 00-1.175 0l-2.8 2.034c-.784.57-1.838-.197-1.539-1.118l1.07-3.292a1 1 0 00-.364-1.118L2.98 8.72c-.783-.57-.38-1.81.588-1.81h3.461a1 1 0 00.951-.69l1.07-3.292z"/></svg>Lv.${p.author_level || 1}</span>` : ''}
                         <span class="text-xs text-slate-400 bg-slate-50 px-2 py-1 rounded-md">${p.created_at}</span>
                     </div>
                     
@@ -510,7 +508,6 @@ function renderPosts(posts) {
                         </div>
                     </div>
                 </div>
-                ${reactHtml ? `<div class="mt-4 pt-3 border-t border-slate-100/60 flex flex-wrap gap-2">${reactHtml}</div>` : ''}
             </div>
         </div>`;
     });
@@ -566,12 +563,6 @@ async function openPost(pid) {
     const isTeacher = CU && (CU.role === 'teacher' || CU.role === 'admin');
     const reactions = p.reactions || {};
 
-    let reactBtns = '';
-    for (const [k, emoji] of Object.entries(REACTIONS)) {
-        const cnt = reactions[k] || 0;
-        reactBtns += `<button onclick="reactPost(${p.id},'${k}',this)" class="reaction-btn${cnt>0?' active':''}">${emoji} <span>${cnt}</span></button>`;
-    }
-
     let pollHtml = '';
     if (p.has_poll) {
         try {
@@ -612,7 +603,13 @@ async function openPost(pid) {
                 </div>
                 <h2 class="text-xl font-bold text-slate-900">${esc(p.title)}</h2>
                 <div class="mt-2 flex items-center text-sm text-slate-400 gap-3">
-                    <span class="cursor-pointer hover:text-primary" onclick="showProfile('${p.author_id}')">${esc(p.author)}</span>
+                    <div class="flex items-center gap-2">
+                        ${p.author_avatar ?
+                            `<img src="${p.author_avatar}" alt="${esc(p.author)}" class="w-6 h-6 rounded-full object-cover border border-slate-200">` :
+                            `<div class="w-6 h-6 rounded-full bg-gradient-to-br from-indigo-100 to-purple-100 flex items-center justify-center text-indigo-600 text-xs font-bold border border-slate-200">${esc(p.author.charAt(0))}</div>`
+                        }
+                        <span class="cursor-pointer hover:text-primary" onclick="showProfile('${p.author_id}')">${esc(p.author)}</span>
+                    </div>
                     <span>${p.created_at}</span><span>👁 ${p.views||0}</span><span>❤️ ${p.likes}</span><span>💬 ${replies.length}</span>
                 </div>
             </div>
@@ -626,7 +623,6 @@ async function openPost(pid) {
         </div>
         <div class="prose prose-sm max-w-none text-slate-800 whitespace-pre-wrap border-b border-slate-100 pb-5 mb-4">${renderContent(p.content)}</div>
         ${pollHtml}
-        <div class="flex items-center gap-2 flex-wrap mb-4">${reactBtns}</div>
         <div class="flex items-center gap-3 mb-6 border-b border-slate-100 pb-4">
             <button onclick="toggleLikeModal(${p.id})" id="ml-btn" class="flex items-center gap-1.5 px-3 py-1.5 rounded-full border ${p.liked?'border-red-300 text-red-500 bg-red-50':'border-slate-200 text-slate-500'} hover:bg-red-50 text-sm">❤️ <span id="ml-cnt">${p.likes}</span></button>
             <button onclick="toggleBmModal(${p.id})" id="mb-btn" class="flex items-center gap-1.5 px-3 py-1.5 rounded-full border ${p.bookmarked?'border-yellow-300 text-yellow-500 bg-yellow-50':'border-slate-200 text-slate-500'} hover:bg-yellow-50 text-sm">${p.bookmarked?'⭐ 已收藏':'☆ 收藏'}</button>
@@ -635,7 +631,12 @@ async function openPost(pid) {
         <h3 class="text-sm font-bold text-slate-700 mb-4">💬 回复 (${replies.length})</h3>`;
 
     if (CU) {
-        h += `<div class="flex gap-3 mb-6"><div class="w-8 h-8 bg-primary rounded-full flex items-center justify-center text-white text-xs font-bold flex-shrink-0">${esc(CU.name.charAt(0))}</div>
+        const currentUserAvatar = CU.avatar || '';
+        h += `<div class="flex gap-3 mb-6">
+            ${currentUserAvatar ?
+                `<img src="${currentUserAvatar}" alt="${esc(CU.name)}" class="w-8 h-8 rounded-full object-cover border border-slate-200 flex-shrink-0">` :
+                `<div class="w-8 h-8 bg-primary rounded-full flex items-center justify-center text-white text-xs font-bold flex-shrink-0">${esc(CU.name.charAt(0))}</div>`
+            }
             <div class="flex-1"><textarea id="reply-input" rows="2" class="w-full px-3 py-2 border border-slate-200 rounded-lg text-sm focus:outline-none focus:ring-2 focus:ring-primary/30" placeholder="写下你的回复..."></textarea>
             <div id="reply-preview" class="flex flex-wrap gap-2 mt-1 hidden"></div>
             <div class="flex justify-between items-center mt-2"><div class="flex gap-1"><button onclick="triggerUpload('reply-input')" class="p-1 rounded hover:bg-slate-200 text-sm" title="上传图片">📷</button><button onclick="triggerCamera('reply-input')" class="p-1 rounded hover:bg-slate-200 text-sm" title="拍照上传">📸</button></div><button onclick="submitReply(${p.id})" class="px-4 py-1.5 bg-primary text-white rounded-lg text-sm hover:bg-blue-700">回复</button></div></div></div>`;
@@ -648,7 +649,10 @@ async function openPost(pid) {
             const canDel = CU && (CU.id === r.author_id || CU.role === 'teacher');
             const canEdit = CU && CU.id === r.author_id;
             h += `<div class="flex gap-3 py-3 ${i>0?'border-t border-slate-100':''}">
-                <div class="w-8 h-8 bg-slate-200 rounded-full flex items-center justify-center text-slate-600 text-xs font-bold flex-shrink-0">${esc(r.author.charAt(0))}</div>
+                ${r.author_avatar ?
+                    `<img src="${r.author_avatar}" alt="${esc(r.author)}" class="w-8 h-8 rounded-full object-cover border border-slate-200 flex-shrink-0">` :
+                    `<div class="w-8 h-8 bg-slate-200 rounded-full flex items-center justify-center text-slate-600 text-xs font-bold flex-shrink-0">${esc(r.author.charAt(0))}</div>`
+                }
                 <div class="flex-1 min-w-0">
                     <div class="flex items-center justify-between">
                         <div class="flex items-center gap-2 flex-wrap">
@@ -715,10 +719,7 @@ async function toggleBmModal(pid) {
 }
 
 async function reactPost(pid, reaction, btn) {
-    if (!CU) { toast('请先登录','error'); return; }
-    const res = await fetch(`/api/posts/${pid}/react`,{method:'POST',headers:{'Content-Type':'application/json'},body:JSON.stringify({reaction})});
-    const d = await res.json();
-    if (d.success) openPost(pid);
+    // removed
 }
 
 async function votePoll(pid) {

templates/login.html

@@ -2,15 +2,16 @@
 {% block title %}登录 - 智联青云{% endblock %}
 {% block navbar %}{% endblock %}
 {% block content %}
-<div class="min-h-screen bg-slate-50 flex flex-col justify-center py-12 sm:px-6 lg:px-8">
+<canvas id="meteor-canvas" style="position:fixed;top:0;left:0;width:100%;height:100%;z-index:0;pointer-events:none;"></canvas>
+<div class="min-h-screen flex flex-col justify-center py-12 sm:px-6 lg:px-8 relative" style="z-index:1;">
     <div class="sm:mx-auto sm:w-full sm:max-w-md">
         <h2 class="mt-6 text-center text-3xl font-extrabold bg-gradient-to-r from-blue-600 via-purple-600 to-pink-600 bg-clip-text text-transparent animate-pulse">登录您的账户</h2>
-        <p class="mt-2 text-center text-sm text-slate-600">
+        <p class="mt-2 text-center text-sm text-slate-300">
             或者 <a href="/register" class="font-medium text-primary hover:text-blue-500 transition-all duration-300 hover:scale-110 inline-block">注册新账户</a>
         </p>
     </div>
     <div class="mt-8 sm:mx-auto sm:w-full sm:max-w-md">
-        <div class="futuristic-card py-8 px-4 sm:px-10">
+        <div class="futuristic-card py-8 px-4 sm:px-10" style="background:rgba(255,255,255,0.92);backdrop-filter:blur(12px);">
             <div class="flex border-b border-slate-200 mb-6">
                 <button id="tab-phone" onclick="switchTab('phone')" class="flex-1 pb-4 text-sm font-medium text-center text-primary border-b-2 border-primary transition-all duration-300 hover:scale-105">手机验证码登录</button>
                 <button id="tab-email" onclick="switchTab('email')" class="flex-1 pb-4 text-sm font-medium text-center text-slate-500 hover:text-slate-700 transition-all duration-300 hover:scale-105">邮箱密码登录</button>
@@ -143,5 +144,109 @@ async function handleEmailLogin(e) {
 }
 
 fetchCaptcha('phone');
+
+// 流星粒子背景
+(function() {
+    const canvas = document.getElementById('meteor-canvas');
+    const ctx = canvas.getContext('2d');
+    let W, H;
+    window._mouseX = -9999;
+    window._mouseY = -9999;
+    document.addEventListener('mousemove', function(e) { window._mouseX = e.clientX; window._mouseY = e.clientY; });
+    document.addEventListener('mouseleave', function() { window._mouseX = -9999; window._mouseY = -9999; });
+
+    function resize() {
+        W = canvas.width = window.innerWidth;
+        H = canvas.height = window.innerHeight;
+    }
+    resize();
+    window.addEventListener('resize', resize);
+
+    const COUNT = 120;
+    const MOUSE_R = 150;
+    const REPEL = 8;
+    const particles = [];
+
+    function rand(a, b) { return Math.random() * (b - a) + a; }
+
+    function spawn(warm) {
+        const angle = rand(Math.PI * 0.6, Math.PI * 0.8);
+        const speed = rand(2, 5);
+        const p = {
+            x: rand(0, W * 1.2),
+            y: warm ? rand(-H * 0.3, H) : rand(-H * 0.3, 0),
+            vx: Math.cos(angle) * speed,
+            vy: Math.sin(angle) * speed,
+            len: rand(15, 40),
+            size: rand(0.8, 2),
+            alpha: rand(0.3, 0.9),
+            hue: rand(190, 260),
+            life: 0,
+            maxLife: rand(120, 300)
+        };
+        if (warm) p.life = rand(0, p.maxLife);
+        return p;
+    }
+
+    for (let i = 0; i < COUNT; i++) particles.push(spawn(true));
+
+    function loop() {
+        ctx.clearRect(0, 0, W, H);
+
+        const bg = ctx.createRadialGradient(W/2, H/2, 0, W/2, H/2, Math.max(W, H) * 0.7);
+        bg.addColorStop(0, '#0f172a');
+        bg.addColorStop(1, '#020617');
+        ctx.fillStyle = bg;
+        ctx.fillRect(0, 0, W, H);
+
+        const mx = window._mouseX, my = window._mouseY;
+
+        for (let i = 0; i < particles.length; i++) {
+            const p = particles[i];
+            p.life++;
+
+            const dx = p.x - mx, dy = p.y - my;
+            const dist = Math.sqrt(dx * dx + dy * dy);
+            if (dist < MOUSE_R && dist > 0) {
+                const f = (1 - dist / MOUSE_R) * REPEL;
+                p.x += (dx / dist) * f;
+                p.y += (dy / dist) * f;
+            }
+
+            p.x += p.vx;
+            p.y += p.vy;
+
+            let a = p.alpha;
+            if (p.life < 20) a *= p.life / 20;
+            if (p.life > p.maxLife - 30) a *= (p.maxLife - p.life) / 30;
+
+            const spd = Math.sqrt(p.vx * p.vx + p.vy * p.vy);
+            const tx = p.x - (p.vx / spd) * p.len * 0.6;
+            const ty = p.y - (p.vy / spd) * p.len * 0.6;
+
+            const g = ctx.createLinearGradient(tx, ty, p.x, p.y);
+            g.addColorStop(0, `hsla(${p.hue},80%,70%,0)`);
+            g.addColorStop(1, `hsla(${p.hue},80%,70%,${a})`);
+            ctx.beginPath();
+            ctx.moveTo(tx, ty);
+            ctx.lineTo(p.x, p.y);
+            ctx.strokeStyle = g;
+            ctx.lineWidth = p.size;
+            ctx.lineCap = 'round';
+            ctx.stroke();
+
+            ctx.beginPath();
+            ctx.arc(p.x, p.y, p.size * 0.8, 0, Math.PI * 2);
+            ctx.fillStyle = `hsla(${p.hue},90%,85%,${a})`;
+            ctx.fill();
+
+            if (p.life >= p.maxLife || p.y > H + 50 || p.x < -100) {
+                particles[i] = spawn(false);
+            }
+        }
+        requestAnimationFrame(loop);
+    }
+    loop();
+})();
 </script>
 {% endblock %}

templates/profile.html

@@ -148,36 +148,6 @@
 
         <!-- 右侧：主要内容 -->
         <div class="space-y-6 lg:col-span-2">
-            <!-- 快捷入口（科幻未来风格） -->
-            {% if profile_user.id == user.id %}
-            <div class="grid grid-cols-2 sm:grid-cols-4 gap-4">
-                <a href="/notifications" class="futuristic-card-dark text-center group transition-all duration-300 hover:scale-105">
-                    <div class="w-12 h-12 mx-auto bg-gradient-to-br from-cyan-500/20 to-blue-500/20 rounded-2xl flex items-center justify-center text-cyan-400 shadow-inner group-hover:scale-110 group-hover:rotate-6 transition-transform mb-3 border border-cyan-500/30">
-                        <svg class="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 17h5l-1.405-1.405A2.032 2.032 0 0118 14.158V11a6.002 6.002 0 00-4-5.659V5a2 2 0 10-4 0v.341C7.67 6.165 6 8.388 6 11v3.159c0 .538-.214 1.055-.595 1.436L4 17h5m6 0v1a3 3 0 11-6 0v-1m6 0H9"/></svg>
-                    </div>
-                    <div class="text-sm font-bold text-slate-300 group-hover:text-cyan-400 transition-colors">通知中心</div>
-                </a>
-                <a href="/chat" class="futuristic-card-dark text-center group transition-all duration-300 hover:scale-105">
-                    <div class="w-12 h-12 mx-auto bg-gradient-to-br from-emerald-500/20 to-teal-500/20 rounded-2xl flex items-center justify-center text-emerald-400 shadow-inner group-hover:scale-110 group-hover:-rotate-6 transition-transform mb-3 border border-emerald-500/30">
-                        <svg class="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M8 10h.01M12 10h.01M16 10h.01M9 16H5a2 2 0 01-2-2V6a2 2 0 012-2h14a2 2 0 012 2v8a2 2 0 01-2 2h-5l-5 5v-5z"/></svg>
-                    </div>
-                    <div class="text-sm font-bold text-slate-300 group-hover:text-emerald-400 transition-colors">我的消息</div>
-                </a>
-                <div class="futuristic-card-dark text-center group cursor-pointer transition-all duration-300 hover:scale-105" onclick="document.getElementById('exam-history-tab').scrollIntoView({behavior:'smooth'})">
-                    <div class="w-12 h-12 mx-auto bg-gradient-to-br from-purple-500/20 to-fuchsia-500/20 rounded-2xl flex items-center justify-center text-purple-400 shadow-inner group-hover:scale-110 group-hover:rotate-6 transition-transform mb-3 border border-purple-500/30">
-                        <svg class="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4"/></svg>
-                    </div>
-                    <div class="text-sm font-bold text-slate-300 group-hover:text-purple-400 transition-colors">考试记录</div>
-                </div>
-                <div class="futuristic-card-dark text-center group cursor-pointer transition-all duration-300 hover:scale-105" onclick="document.getElementById('bookmarks-tab').scrollIntoView({behavior:'smooth'})">
-                    <div class="w-12 h-12 mx-auto bg-gradient-to-br from-amber-500/20 to-orange-500/20 rounded-2xl flex items-center justify-center text-amber-400 shadow-inner group-hover:scale-110 group-hover:-rotate-6 transition-transform mb-3 border border-amber-500/30">
-                        <svg class="w-6 h-6" fill="none" stroke="currentColor" viewBox="0 0 24 24"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M5 5a2 2 0 012-2h10a2 2 0 012 2v16l-7-3.5L5 21V5z"/></svg>
-                    </div>
-                    <div class="text-sm font-bold text-slate-300 group-hover:text-amber-400 transition-colors">我的收藏</div>
-                </div>
-            </div>
-            {% endif %}
-
             <!-- 高级选项卡内容区 -->
             <div class="futuristic-card-dark overflow-hidden">
                 <!-- 科幻未来标签栏 -->
@@ -277,23 +247,23 @@ async function loadFriends() {
         if (!data.success) throw new Error(data.message);
         if (data.friends.length === 0) {
             container.innerHTML = '<div class="col-span-2 text-center py-4 text-slate-400">暂无好友</div>';
-            return;
+        } else {
+            let html = '';
+            data.friends.forEach(f => {
+                html += `
+                <div class="flex items-center space-x-3 p-3 border border-slate-100 rounded-xl bg-white">
+                    <div class="w-10 h-10 bg-slate-200 rounded-full flex items-center justify-center text-slate-600 text-sm font-bold overflow-hidden">
+                        ${f.avatar ? `<img src="${f.avatar}" class="w-full h-full object-cover">` : f.name.charAt(0).toUpperCase()}
+                    </div>
+                    <div class="flex-1 min-w-0">
+                        <div class="text-sm font-medium text-slate-900 truncate">${f.name}</div>
+                        <div class="text-xs text-slate-400">好友 · ${f.created_at}</div>
+                    </div>
+                    <a href="/chat?dm=${f.id}" class="btn-futuristic px-3 py-1.5 text-xs rounded-lg transition-colors font-medium">私聊</a>
+                </div>`;
+            });
+            container.innerHTML = html;
         }
-        let html = '';
-        data.friends.forEach(f => {
-            html += `
-            <div class="flex items-center space-x-3 p-3 border border-slate-100 rounded-xl bg-white">
-                <div class="w-10 h-10 bg-slate-200 rounded-full flex items-center justify-center text-slate-600 text-sm font-bold overflow-hidden">
-                    ${f.avatar ? `<img src="${f.avatar}" class="w-full h-full object-cover">` : f.name.charAt(0).toUpperCase()}
-                </div>
-                <div class="flex-1 min-w-0">
-                    <div class="text-sm font-medium text-slate-900 truncate">${f.name}</div>
-                    <div class="text-xs text-slate-400">好友 · ${f.created_at}</div>
-                </div>
-                <a href="/chat?dm=${f.id}" class="btn-futuristic px-3 py-1.5 text-xs rounded-lg transition-colors font-medium">私聊</a>
-            </div>`;
-        });
-        container.innerHTML = html;
     } catch (e) {
         container.innerHTML = '<div class="col-span-2 text-center py-4 text-red-500">加载失败</div>';
     }

templates/register.html

@@ -2,15 +2,20 @@
 {% block title %}注册 - 智联青云{% endblock %}
 {% block navbar %}{% endblock %}
 {% block content %}
-<div class="min-h-screen bg-slate-50 flex flex-col justify-center py-12 sm:px-6 lg:px-8">
+<!-- 覆盖全局背景，确保全屏填充 -->
+<div class="fixed inset-0 z-[-1] bg-gradient-to-b from-sky-400 via-sky-200 to-white"></div>
+<!-- 云团动态背景画布 -->
+<canvas id="cloudCanvas" class="fixed inset-0 z-[-1] pointer-events-none w-full h-full"></canvas>
+
+<div class="relative z-10 flex flex-col justify-center min-h-screen py-12 sm:px-6 lg:px-8">
     <div class="sm:mx-auto sm:w-full sm:max-w-md">
-        <h2 class="mt-6 text-center text-3xl font-extrabold bg-gradient-to-r from-blue-600 via-purple-600 to-pink-600 bg-clip-text text-transparent animate-pulse">注册新账户</h2>
-        <p class="mt-2 text-center text-sm text-slate-600">
-            已有账户？ <a href="/login" class="font-medium text-primary hover:text-blue-500 transition-all duration-300 hover:scale-110 inline-block">立即登录</a>
+        <h2 class="mt-6 text-center text-4xl font-extrabold text-white drop-shadow-md tracking-tight">注册新账户</h2>
+        <p class="mt-2 text-center text-sm text-sky-800 font-medium">
+            已有账户？ <a href="/login" class="font-bold text-blue-600 hover:text-blue-800 transition-all duration-300 hover:scale-110 inline-block drop-shadow-sm">立即登录</a>
         </p>
     </div>
-    <div class="mt-8 sm:mx-auto sm:w-full sm:max-w-md">
-        <div class="futuristic-card py-8 px-4 sm:px-10">
+    <div class="relative z-10 mt-8 sm:mx-auto sm:w-full sm:max-w-md">
+        <div class="bg-white/70 backdrop-blur-xl py-8 px-4 sm:px-10 rounded-3xl shadow-[0_8px_30px_rgb(0,0,0,0.1)] border border-white/60">
             <!-- 选项卡 -->
             <div class="flex border-b border-slate-200 mb-6">
                 <button id="tab-phone" onclick="switchTab('phone')" class="flex-1 pb-4 text-sm font-medium text-center text-primary border-b-2 border-primary transition-all duration-300 hover:scale-105">手机号注册</button>
@@ -259,5 +264,153 @@ async function handleEmailRegister(e) {
 
 // 初始化图形验证码（默认手机选项卡）
 fetchCaptcha('phone');
+
+// ========== 云团动态背景动画 ==========
+const canvas = document.getElementById('cloudCanvas');
+const ctx = canvas.getContext('2d');
+let width, height;
+let clouds = [];
+let mouse = { x: -1000, y: -1000 };
+
+function resize() {
+    width = canvas.width = window.innerWidth;
+    height = canvas.height = window.innerHeight;
+}
+window.addEventListener('resize', resize);
+resize();
+
+window.addEventListener('mousemove', (e) => {
+    mouse.x = e.clientX;
+    mouse.y = e.clientY;
+});
+window.addEventListener('mouseleave', () => {
+    mouse.x = -1000;
+    mouse.y = -1000;
+});
+
+// 预渲染柔和的云朵粒子，提升性能和真实感
+const puffCanvas = document.createElement('canvas');
+puffCanvas.width = 200;
+puffCanvas.height = 200;
+const pctx = puffCanvas.getContext('2d');
+const grad = pctx.createRadialGradient(100, 100, 0, 100, 100, 100);
+grad.addColorStop(0, 'rgba(255, 255, 255, 1)');
+grad.addColorStop(0.2, 'rgba(255, 255, 255, 0.8)');
+grad.addColorStop(0.5, 'rgba(255, 255, 255, 0.3)');
+grad.addColorStop(1, 'rgba(255, 255, 255, 0)');
+pctx.fillStyle = grad;
+pctx.beginPath();
+pctx.arc(100, 100, 100, 0, Math.PI * 2);
+pctx.fill();
+
+class Cloud {
+    constructor() {
+        this.reset(true);
+    }
+    
+    reset(initial = false) {
+        this.size = Math.random() * 150 + 100; // 更大的云团
+        this.x = initial ? Math.random() * width : -this.size * 2;
+        this.y = Math.random() * height * 0.8; // 主要分布在上方
+        this.speedX = Math.random() * 0.5 + 0.2;
+        this.speedY = (Math.random() - 0.5) * 0.1;
+        this.baseOpacity = Math.random() * 0.5 + 0.3;
+        this.opacity = this.baseOpacity;
+        this.scattered = false;
+        
+        // 生成云朵形状（由多个柔和粒子组成）
+        this.parts = [];
+        const numParts = Math.floor(Math.random() * 6) + 6;
+        for (let i = 0; i < numParts; i++) {
+            // 云朵底部较平，顶部不规则
+            const nx = (Math.random() - 0.5) * this.size * 1.5;
+            const ny = (Math.random() * 0.5 - 0.8) * this.size * 0.5;
+            this.parts.push({
+                offsetX: nx,
+                offsetY: ny,
+                radius: Math.random() * this.size * 0.5 + this.size * 0.4,
+                vx: 0,
+                vy: 0
+            });
+        }
+    }
+
+    update() {
+        if (!this.scattered) {
+            this.x += this.speedX;
+            this.y += this.speedY;
+            
+            // 鼠标交互（散开效果）
+            const dx = this.x - mouse.x;
+            const dy = this.y - mouse.y;
+            const dist = Math.sqrt(dx * dx + dy * dy);
+            
+            // 鼠标靠近时触发散开
+            if (dist < 250) {
+                this.scattered = true;
+                // 给每个粒子一个远离鼠标的速度
+                for (let part of this.parts) {
+                    const pdx = (this.x + part.offsetX) - mouse.x;
+                    const pdy = (this.y + part.offsetY) - mouse.y;
+                    const pdist = Math.sqrt(pdx * pdx + pdy * pdy) || 1;
+                    const force = Math.max(0, 300 - pdist) / 300;
+                    part.vx = (pdx / pdist) * force * (Math.random() * 6 + 2);
+                    part.vy = (pdy / pdist) * force * (Math.random() * 6 + 2);
+                }
+            }
+        } else {
+            // 散开状态：粒子移动并淡出
+            this.opacity -= 0.015;
+            for (let part of this.parts) {
+                part.offsetX += part.vx;
+                part.offsetY += part.vy;
+                part.radius += 0.5; // 散开时稍微膨胀
+                // 增加空气阻力
+                part.vx *= 0.95;
+                part.vy *= 0.95;
+            }
+        }
+
+        // 边界检测或完全淡出后重置
+        if (this.x > width + this.size * 2 || this.opacity <= 0 || this.y < -this.size * 2 || this.y > height + this.size * 2) {
+            this.reset();
+        }
+    }
+
+    draw() {
+        if (this.opacity <= 0) return;
+        ctx.save();
+        ctx.globalAlpha = Math.max(0, this.opacity);
+        
+        for (let part of this.parts) {
+            const cx = this.x + part.offsetX;
+            const cy = this.y + part.offsetY;
+            const r = part.radius;
+            
+            // 视野外不绘制
+            if (cx + r < 0 || cx - r > width || cy + r < 0 || cy - r > height) continue;
+            
+            // 使用预渲染的柔和云朵粒子
+            ctx.drawImage(puffCanvas, cx - r, cy - r, r * 2, r * 2);
+        }
+        
+        ctx.restore();
+    }
+}
+
+// 初始化云朵
+for (let i = 0; i < 12; i++) {
+    clouds.push(new Cloud());
+}
+
+function animate() {
+    ctx.clearRect(0, 0, width, height);
+    for (let cloud of clouds) {
+        cloud.update();
+        cloud.draw();
+    }
+    requestAnimationFrame(animate);
+}
+animate();
 </script>
 {% endblock %}