Use English tagline and open daily K-line when jumping from tradable symbols.

Co-authored-by: Cursor <cursoragent@cursor.com>

templates/login.html

@@ -127,8 +127,8 @@
             filter:drop-shadow(0 0 20px var(--focus-glow));
         }
         .login-sub{
-            text-align:center;font-size:.78rem;letter-spacing:.04em;
-            color:var(--text-muted);margin-bottom:2rem;
+            text-align:center;font-size:.68rem;letter-spacing:.12em;
+            text-transform:uppercase;color:var(--text-muted);margin-bottom:2rem;
         }
         .form-group{margin-bottom:1.25rem}
         .form-group label{
@@ -184,7 +184,7 @@
         </div>
         <div class="login-box">
             <h2>国内期货 · 交易复盘系统</h2>
-            <p class="login-sub">专注于仓位管理和纪律执行</p>
+            <p class="login-sub">Position Management · Disciplined Execution</p>
             {% with messages = get_flashed_messages() %}
                 {% if messages %}<div class="flash">{{ messages[0] }}</div>{% endif %}
             {% endwith %}