扫码登录，获取cookies

frontend/templates/edit_account.html

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+{% extends "base.html" %}
+
+{% block title %}Edit Account - Weibo-HotSign{% endblock %}
+
+{% block content %}
+<div style="max-width: 600px; margin: 0 auto;">
+    <h1 style="margin-bottom: 30px;">Edit Account</h1>
+
+    <div class="card">
+        <form method="POST">
+            <div class="form-group">
+                <label for="remark">Remark</label>
+                <input type="text" id="remark" name="remark" value="{{ account.remark or '' }}" placeholder="e.g., My main account">
+            </div>
+
+            <div class="form-group">
+                <label for="cookie">Cookie (Leave empty to keep current)</label>
+                <textarea id="cookie" name="cookie" placeholder="Paste new cookie here if you want to update"></textarea>
+                <small style="color: #999; display: block; margin-top: 8px;">
+                    Your cookie will be encrypted and stored securely.
+                </small>
+            </div>
+
+            <div class="btn-group">
+                <button type="submit" class="btn btn-primary">Save Changes</button>
+                <a href="{{ url_for('account_detail', account_id=account.id) }}" class="btn btn-secondary">Cancel</a>
+            </div>
+        </form>
+    </div>
+</div>
+{% endblock %}