feat(contact): 重构“联系我们”页面及表单交互体验

- 重新设计页面布局，增加顶部横幅及联系方式版块
- 优化在线咨询表单，增加字段并调整样式和验证规则
- 替换旧的提交逻辑为新异步模拟提交，提示更友好
- 移除旧二维码和联系卡片，增加温馨提示信息
- 添加详细样式，提升页面视觉效果和响应式布局
- 更新会员服务联系信息区，增加按钮链接和服务时间
- 会员服务列表使用模拟数据，支持按类型过滤展示
- 登录页左侧风格调整，突出广西决策咨询中心品牌形象
- 修改数值统计及底部版权声明，更新背景渐变颜色和按钮样式

app/pages/login.vue

@@ -12,36 +12,36 @@
       <div class="left-content">
         <!-- 品牌 logo -->
         <div class="brand">
-          <img src="/logo.png" class="brand-logo-img" alt="Websopy" />
-          <div class="brand-site-name">websopy</div>
+          <div class="brand-logo-text">决策咨询网</div>
+          <div class="brand-site-name">GX Decision Consulting</div>
         </div>
 
         <!-- 中央文案 -->
         <div class="hero-text">
-          <div class="hero-tag">{{ $t('login.aiPlatform') }}</div>
-          <h1 class="hero-title">{{ config?.loginTitle || $t('login.buildNextGen') }}</h1>
-          <p class="hero-desc">{{ $t('login.lowcodeAccess') }}<br />{{ $t('login.fromIdeaToOnline') }}</p>
+          <div class="hero-tag">广西决策咨询中心</div>
+          <h1 class="hero-title">汇聚专家智慧<br>服务政府决策</h1>
+          <p class="hero-desc">广西决策咨询网是自治区党委政府决策咨询服务的重要平台<br>汇聚各领域专家学者，提供权威决策咨询服务</p>
           <div class="hero-stats">
             <div class="stat-item">
-              <span class="stat-num">10000+</span>
-              <span class="stat-label">{{ $t('login.developers') }}</span>
+              <span class="stat-num">200+</span>
+              <span class="stat-label">认证专家</span>
             </div>
             <div class="stat-divider" />
             <div class="stat-item">
               <span class="stat-num">500+</span>
-              <span class="stat-label">{{ $t('login.aiApps') }}</span>
+              <span class="stat-label">会员单位</span>
             </div>
             <div class="stat-divider" />
             <div class="stat-item">
-              <span class="stat-num">99.9%</span>
-              <span class="stat-label">{{ $t('login.uptime') }}</span>
+              <span class="stat-num">1000+</span>
+              <span class="stat-label">建言献策</span>
             </div>
           </div>
         </div>
 
         <!-- 底部 -->
         <div class="left-footer">
-          <span>{{ $t('login.copyright') }}</span>
+          <span>© {{ new Date().getFullYear() }} 广西决策咨询中心 保留所有权利</span>
         </div>
       </div>
     </div>
@@ -445,7 +445,7 @@ onUnmounted(() => {
 .login-left {
   flex: 1;
   position: relative;
-  background: linear-gradient(150deg, #0f0c29 0%, #1a1a4e 30%, #24243e 60%, #302b63 100%);
+  background: linear-gradient(150deg, #0d1b2a 0%, #1e3a5f 30%, #2563eb 60%, #1e3a5f 100%);
   background-size: cover;
   background-position: center;
   display: flex;
@@ -457,7 +457,7 @@ onUnmounted(() => {
 .left-overlay {
   position: absolute;
   inset: 0;
-  background: linear-gradient(150deg, rgba(10, 10, 40, 0.75) 0%, rgba(30, 20, 80, 0.55) 100%);
+  background: linear-gradient(150deg, rgba(13, 27, 42, 0.75) 0%, rgba(30, 58, 95, 0.55) 100%);
 }
 
 /* 装饰网格 */
@@ -480,7 +480,7 @@ onUnmounted(() => {
 .dot-1 {
   width: 420px;
   height: 420px;
-  background: radial-gradient(circle, rgba(99, 102, 241, 0.22) 0%, transparent 65%);
+  background: radial-gradient(circle, rgba(37, 99, 235, 0.22) 0%, transparent 65%);
   top: -120px;
   right: -80px;
 }
@@ -547,6 +547,14 @@ onUnmounted(() => {
   width: auto;
   object-fit: contain;
 }
+/* 品牌文字 logo */
+.brand-logo-text {
+  font-size: 22px;
+  font-weight: 800;
+  color: #fff;
+  letter-spacing: 0.04em;
+  text-shadow: 0 2px 8px rgba(0,0,0,0.3);
+}
 /* site-name 渐变文字，与导航栏保持一致 */
 .brand-site-name {
   color: #fff;
@@ -863,7 +871,7 @@ onUnmounted(() => {
 
 /* 提交按钮 */
 .submit-btn.ant-btn-primary {
-  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%) !important;
+  background: linear-gradient(135deg, #1e3a5f 0%, #2563eb 100%) !important;
   border: none !important;
   border-radius: 10px !important;
   height: 48px !important;