feat: 初始版本，圆角主题与首次管理员引导

app/templates/activities/detail.html

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+{% extends 'base.html' %}
+{% block title %}活动详情{% endblock %}
+{% block content %}
+<h3>{{ activity.title }}</h3>
+<p>{{ activity.description }}</p>
+<a class="btn btn-primary" href="{{ url_for('activities.submit', act_id=activity.id) }}">投稿</a>
+{% endblock %}

app/templates/activities/list.html

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+{% extends 'base.html' %}
+{% block title %}活动{% endblock %}
+{% block content %}
+<h3>活动</h3>
+<ul>
+  {% for a in activities %}
+  <li><a href="{{ url_for('activities.detail', act_id=a.id) }}">{{ a.title }}</a></li>
+  {% endfor %}
+</ul>
+{% endblock %}

app/templates/activities/submit.html

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+{% extends 'base.html' %}
+{% block title %}投稿{% endblock %}
+{% block content %}
+<h3>向 {{ activity.title }} 投稿</h3>
+<form method="post" enctype="multipart/form-data">
+  <input type="hidden" name="csrf_token" value="{{ csrf_token }}">
+  <div class="mb-3"><label class="form-label">图片</label><input class="form-control" name="images" type="file" accept="image/*" multiple required></div>
+  <button class="btn btn-primary" type="submit">提交</button>
+</form>
+{% endblock %}

app/templates/admin/activities.html

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+{% extends 'base.html' %}
+{% block title %}活动管理{% endblock %}
+{% block content %}
+<h3>活动管理</h3>
+<form method="post" class="mb-3">
+  <input type="hidden" name="csrf_token" value="{{ csrf_token }}">
+  <div class="mb-2"><input class="form-control" name="title" placeholder="标题" required></div>
+  <div class="mb-2"><input class="form-control" name="theme" placeholder="主题"></div>
+  <div class="mb-2"><textarea class="form-control" name="description" placeholder="描述"></textarea></div>
+  <button class="btn btn-primary" type="submit">创建</button>
+  </form>
+<table class="table">
+  <tr><th>标题</th><th>状态</th><th>操作</th></tr>
+  {% for a in activities %}
+  <tr>
+    <td>{{ a.title }}</td>
+    <td>{{ a.status.value }}</td>
+    <td>
+      <form method="post" action="{{ url_for('admin.publish_activity', act_id=a.id) }}" style="display:inline">
+        <input type="hidden" name="csrf_token" value="{{ csrf_token }}">
+        <button class="btn btn-success">发布</button>
+      </form>
+      <form method="post" action="{{ url_for('admin.close_activity', act_id=a.id) }}" style="display:inline">
+        <input type="hidden" name="csrf_token" value="{{ csrf_token }}">
+        <button class="btn btn-warning">关闭</button>
+      </form>
+    </td>
+  </tr>
+  {% endfor %}
+</table>
+{% endblock %}

app/templates/admin/dashboard.html

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+{% extends 'base.html' %}
+{% block title %}管理员{% endblock %}
+{% block content %}
+<h3>管理员仪表盘</h3>
+<div class="row">
+  <div class="col">待审核注册：{{ pending_users }}</div>
+  <div class="col">待审核作品：{{ pending_posts }}</div>
+  <div class="col">待审核投稿：{{ pending_subs }}</div>
+</div>
+<hr>
+<a class="btn btn-link" href="{{ url_for('admin.review_users') }}">注册审核</a>
+<a class="btn btn-link" href="{{ url_for('admin.review_posts') }}">作品审核</a>
+<a class="btn btn-link" href="{{ url_for('admin.review_submissions') }}">投稿审核</a>
+<a class="btn btn-link" href="{{ url_for('admin.manage_activities') }}">活动管理</a>
+{% endblock %}

app/templates/admin/reviews_posts.html

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+{% extends 'base.html' %}
+{% block title %}作品审核{% endblock %}
+{% block content %}
+<h3>作品审核</h3>
+<table class="table">
+  <tr><th>标题</th><th>作者</th><th>操作</th></tr>
+  {% for p in posts %}
+  <tr>
+    <td>{{ p.title }}</td>
+    <td>{{ p.user.username }}</td>
+    <td>
+      <form method="post" action="{{ url_for('admin.approve_post', post_id=p.id) }}" style="display:inline">
+        <input type="hidden" name="csrf_token" value="{{ csrf_token }}">
+        <button class="btn btn-success">通过</button>
+      </form>
+      <form method="post" action="{{ url_for('admin.reject_post', post_id=p.id) }}" style="display:inline">
+        <input type="hidden" name="csrf_token" value="{{ csrf_token }}">
+        <button class="btn btn-danger">拒绝</button>
+      </form>
+    </td>
+  </tr>
+  {% endfor %}
+</table>
+{% endblock %}

app/templates/admin/reviews_submissions.html

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+{% extends 'base.html' %}
+{% block title %}投稿审核{% endblock %}
+{% block content %}
+<h3>投稿审核</h3>
+<table class="table">
+  <tr><th>活动</th><th>用户</th><th>操作</th></tr>
+  {% for s in submissions %}
+  <tr>
+    <td>{{ s.activity.title }}</td>
+    <td>{{ s.user_id }}</td>
+    <td>
+      <form method="post" action="{{ url_for('admin.approve_submission', sub_id=s.id) }}" style="display:inline">
+        <input type="hidden" name="csrf_token" value="{{ csrf_token }}">
+        <button class="btn btn-success">通过</button>
+      </form>
+      <form method="post" action="{{ url_for('admin.reject_submission', sub_id=s.id) }}" style="display:inline">
+        <input type="hidden" name="csrf_token" value="{{ csrf_token }}">
+        <button class="btn btn-danger">拒绝</button>
+      </form>
+    </td>
+  </tr>
+  {% endfor %}
+</table>
+{% endblock %}

app/templates/admin/reviews_users.html

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+{% extends 'base.html' %}
+{% block title %}注册审核{% endblock %}
+{% block content %}
+<h3>注册审核</h3>
+<table class="table">
+  <tr><th>用户名</th><th>邮箱</th><th>操作</th></tr>
+  {% for u in users %}
+  <tr>
+    <td>{{ u.username }}</td>
+    <td>{{ u.email }}</td>
+    <td>
+      <form method="post" action="{{ url_for('admin.approve_user', user_id=u.id) }}" style="display:inline">
+        <input type="hidden" name="csrf_token" value="{{ csrf_token }}">
+        <button class="btn btn-success">通过</button>
+      </form>
+      <form method="post" action="{{ url_for('admin.reject_user', user_id=u.id) }}" style="display:inline">
+        <input type="hidden" name="csrf_token" value="{{ csrf_token }}">
+        <button class="btn btn-danger">拒绝</button>
+      </form>
+    </td>
+  </tr>
+  {% endfor %}
+</table>
+{% endblock %}

app/templates/auth/login.html

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+{% extends 'base.html' %}
+{% block title %}登录{% endblock %}
+{% block content %}
+<h3 class="mb-3">登录</h3>
+<form class="card p-3" method="post">
+  <input type="hidden" name="csrf_token" value="{{ csrf_token }}">
+  <div class="mb-3"><label class="form-label">邮箱</label><input class="form-control" name="email" type="email" required></div>
+  <div class="mb-3"><label class="form-label">密码</label><input class="form-control" name="password" type="password" required></div>
+  <button class="btn btn-brand" type="submit">登录</button>
+</form>
+{% endblock %}

app/templates/auth/register.html

@@ -0,0 +1,13 @@
+{% extends 'base.html' %}
+{% block title %}注册{% endblock %}
+{% block content %}
+<h3 class="mb-3">注册</h3>
+<form class="card p-3" method="post" enctype="multipart/form-data">
+  <input type="hidden" name="csrf_token" value="{{ csrf_token }}">
+  <div class="mb-3"><label class="form-label">邮箱</label><input class="form-control" name="email" type="email" required></div>
+  <div class="mb-3"><label class="form-label">用户名</label><input class="form-control" name="username" required></div>
+  <div class="mb-3"><label class="form-label">密码</label><input class="form-control" name="password" type="password" required></div>
+  <div class="mb-3"><label class="form-label">学生身份照片</label><input class="form-control" name="identity_photo" type="file" accept="image/*" required></div>
+  <button class="btn btn-brand" type="submit">提交</button>
+</form>
+{% endblock %}

app/templates/base.html

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+<!doctype html>
+<html lang="zh-CN">
+<head>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <title>{% block title %}摄影社论坛{% endblock %}</title>
+  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/css/bootstrap.min.css" rel="stylesheet">
+  <link href="{{ url_for('static', filename='theme.css') }}" rel="stylesheet">
+</head>
+<body>
+<nav class="navbar navbar-expand-lg navbar-light bg-white mb-3 mt-2 px-3">
+  <div class="container-fluid">
+    <a class="navbar-brand" href="{{ url_for('feed.discover') }}">摄影社</a>
+    <div>
+      <a class="btn btn-link" href="{{ url_for('feed.discover') }}">发现</a>
+      {% if current_user.is_authenticated %}
+      <a class="btn btn-link" href="{{ url_for('feed.following') }}">关注</a>
+      <a class="btn btn-link" href="{{ url_for('users.profile', user_id=current_user.id) }}">我的主页</a>
+      <a class="btn btn-link" href="{{ url_for('users.notifications') }}">通知</a>
+      <a class="btn btn-link" href="{{ url_for('posts.create') }}">发布作品</a>
+      <a class="btn btn-link" href="{{ url_for('activities.list_activities') }}">活动</a>
+      {% if current_user.role == 'admin' %}
+      <a class="btn btn-link" href="{{ url_for('admin.dashboard') }}">管理员</a>
+      {% endif %}
+      <a class="btn btn-link" href="{{ url_for('auth.logout') }}">退出</a>
+      {% else %}
+      <a class="btn btn-link" href="{{ url_for('auth.login') }}">登录</a>
+      <a class="btn btn-brand" href="{{ url_for('auth.register') }}">注册</a>
+      {% endif %}
+    </div>
+  </div>
+  </nav>
+<div class="container">
+  {% with messages = get_flashed_messages() %}
+    {% if messages %}
+    <div class="alert alert-info">{{ messages[0] }}</div>
+    {% endif %}
+  {% endwith %}
+  {% block content %}{% endblock %}
+</div>
+<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/js/bootstrap.bundle.min.js"></script>
+</body>
+</html>

app/templates/feed/discover.html

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+{% extends 'base.html' %}
+{% block title %}发现{% endblock %}
+{% block content %}
+<h3 class="mb-3">发现</h3>
+<div class="card-grid">
+  {% for p in posts %}
+  <div class="card">
+    {% set first = p.images[0] if p.images %}
+    {% if first %}
+    <a href="{{ url_for('posts.detail', post_id=p.id) }}">
+      <img class="photo-thumb" src="{{ url_for('main.uploads', filename=first.web_path.split('uploads\\')[-1]) }}" alt="{{ p.title }}" />
+    </a>
+    {% endif %}
+    <div class="p-3">
+      <a class="text-decoration-none" href="{{ url_for('posts.detail', post_id=p.id) }}">{{ p.title }}</a>
+    </div>
+  </div>
+  {% endfor %}
+</div>
+{% endblock %}

app/templates/feed/following.html

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+{% extends 'base.html' %}
+{% block title %}关注{% endblock %}
+{% block content %}
+<h3 class="mb-3">关注</h3>
+<div class="card-grid">
+  {% for p in posts %}
+  <div class="card">
+    {% set first = p.images[0] if p.images %}
+    {% if first %}
+    <a href="{{ url_for('posts.detail', post_id=p.id) }}">
+      <img class="photo-thumb" src="{{ url_for('main.uploads', filename=first.web_path.split('uploads\\')[-1]) }}" alt="{{ p.title }}" />
+    </a>
+    {% endif %}
+    <div class="p-3">
+      <a class="text-decoration-none" href="{{ url_for('posts.detail', post_id=p.id) }}">{{ p.title }}</a>
+    </div>
+  </div>
+  {% endfor %}
+</div>
+{% endblock %}

app/templates/posts/create.html

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+{% extends 'base.html' %}
+{% block title %}发布作品{% endblock %}
+{% block content %}
+<h3 class="mb-3">发布作品</h3>
+<form class="card p-3" method="post" enctype="multipart/form-data">
+  <input type="hidden" name="csrf_token" value="{{ csrf_token }}">
+  <div class="mb-3"><label class="form-label">标题</label><input class="form-control" name="title" required></div>
+  <div class="mb-3"><label class="form-label">介绍</label><textarea class="form-control" name="description"></textarea></div>
+  <div class="mb-3"><label class="form-label">可见性</label>
+    <select class="form-select" name="visibility">
+      <option value="public">公开（需审核）</option>
+      <option value="followers">仅关注者</option>
+      <option value="private">仅自己</option>
+    </select>
+  </div>
+  <div class="mb-3"><label class="form-label">图片</label><input class="form-control" name="images" type="file" accept="image/*" multiple required></div>
+  <button class="btn btn-brand" type="submit">提交</button>
+</form>
+{% endblock %}

app/templates/posts/detail.html

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+{% extends 'base.html' %}
+{% block title %}作品详情{% endblock %}
+{% block content %}
+<div class="card mb-3">
+  <div class="p-3">
+    <h3 class="mb-2">{{ post.title }}</h3>
+    <p class="text-secondary">{{ post.description }}</p>
+    <span class="badge bg-light text-dark">{{ post.visibility.value }}</span>
+  </div>
+  <div class="p-3">
+    <div class="row">
+      {% for img in post.images %}
+      <div class="col-md-4 mb-2">
+        <img src="{{ url_for('main.uploads', filename=img.web_path.split('uploads\\')[-1]) }}" class="photo-thumb" />
+      </div>
+      {% endfor %}
+    </div>
+  </div>
+</div>
+<hr>
+<form class="card p-3" method="post" action="{{ url_for('comments.create', post_id=post.id) }}">
+  <input type="hidden" name="csrf_token" value="{{ csrf_token }}">
+  <div class="mb-3"><textarea class="form-control" name="body" placeholder="发表评论"></textarea></div>
+  <button class="btn btn-brand" type="submit">评论</button>
+</form>
+{% endblock %}

app/templates/setup/admin.html

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+{% extends 'base.html' %}
+{% block title %}创建管理员{% endblock %}
+{% block content %}
+<h3 class="mb-3">首次使用：创建管理员</h3>
+<form class="card p-3" method="post">
+  <input type="hidden" name="csrf_token" value="{{ csrf_token }}">
+  <div class="mb-3"><label class="form-label">邮箱</label><input class="form-control" name="email" type="email" required></div>
+  <div class="mb-3"><label class="form-label">用户名</label><input class="form-control" name="username" required></div>
+  <div class="mb-3"><label class="form-label">密码</label><input class="form-control" name="password" type="password" required></div>
+  <div class="mb-3"><label class="form-label">确认密码</label><input class="form-control" name="confirm" type="password" required></div>
+  <button class="btn btn-brand" type="submit">创建管理员</button>
+</form>
+{% endblock %}

app/templates/users/edit.html

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+{% extends 'base.html' %}
+{% block title %}编辑资料{% endblock %}
+{% block content %}
+<h3>编辑资料</h3>
+<form method="post">
+  <input type="hidden" name="csrf_token" value="{{ csrf_token }}">
+  <div class="mb-3"><label class="form-label">简介</label><textarea class="form-control" name="bio"></textarea></div>
+  <div class="mb-3"><label class="form-label">年级</label><input class="form-control" name="grade"></div>
+  <div class="mb-3"><label class="form-label">班级</label><input class="form-control" name="class_name"></div>
+  <button class="btn btn-primary" type="submit">保存</button>
+</form>
+{% endblock %}

app/templates/users/notifications.html

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+{% extends 'base.html' %}
+{% block title %}通知{% endblock %}
+{% block content %}
+<h3>通知</h3>
+<ul>
+  {% for n in items %}
+  <li>{{ n.type }} {{ n.created_at }}</li>
+  {% endfor %}
+</ul>
+{% endblock %}

app/templates/users/profile.html

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+{% extends 'base.html' %}
+{% block title %}主页{% endblock %}
+{% block content %}
+<div class="d-flex justify-content-between align-items-center">
+  <h3>{{ user.username }}</h3>
+  {% if current_user.is_authenticated and current_user.id != user.id %}
+  <a class="btn btn-outline-primary" href="{{ url_for('follows.follow', user_id=user.id) }}">关注</a>
+  {% endif %}
+</div>
+<p>{{ user.profile.bio }}</p>
+<hr>
+<h5>作品</h5>
+<div class="row">
+  {% for p in user.posts %}
+  <div class="col-md-4">
+    <a href="{{ url_for('posts.detail', post_id=p.id) }}">{{ p.title }}</a>
+  </div>
+  {% endfor %}
+</div>
+{% endblock %}