feat: Publicity 公示页移动端适配 (顶栏紧凑 + nav 横滚 + 列表卡片化)

Publicity.vue 是公共项目公示页, 有完整桌面布局 (1354px min-width, 72px 顶栏,
60px padding, 36px nav 间距), 手机端需要专门的 media query 才能正常显示:

≤768px:
- body min-width: 0 (解除桌面 1354 强制)
- 顶栏 72→56px, padding 60→12px
- logo 36→30px, title 16→14px
- nav-list 横向滚动 + gap 36→16px
- 顶栏用户区紧凑 (font 15→13px)
- container padding 收窄 (16/12)
- filter-bar 单列, filter-input 全宽
- 列表项 padding 12px, 字号适配
- 弹窗 width 100vw 全屏化

不影响桌面: 所有规则都在 @media (max-width: 768px) 内

不需要适配的页面 (已 mobile-friendly):
- App.vue / PortalLayout.vue (纯容器)
- views/doctor/SignContract.vue (mobile-first 设计, 固定底栏)
- components/* (11 个组件用 flex + min-width:0, 自动响应)

ry-vue3/src/views/portal/Publicity.vue

@@ -694,4 +694,62 @@ main.container {
     margin-left: 12px;
 }
 
+
+
+/* ========================================
+   移动端适配 (≤768px) — 不影响桌面
+   - 取消 body 1354px 最小宽度
+   - 顶栏 72→56px, padding 60→12
+   - nav-list 横向滚动
+   - 内容区单列
+   - 列表卡片化
+   ======================================== */
+@media (max-width: 768px) {
+  body { min-width: 0 !important; }
+
+  /* 顶栏紧凑 */
+  .top-nav {
+    height: 56px !important;
+    padding: 0 12px !important;
+  }
+  .logo-icon { width: 30px !important; height: 30px !important; }
+  .logo-title { font-size: 14px !important; }
+  .logo-subtitle { font-size: 10px !important; }
+
+  /* nav-list 横向滚动 (避免 2 项就溢出) */
+  .nav-list {
+    gap: 16px !important;
+    margin-left: 12px !important;
+    flex: 1 !important;
+    overflow-x: auto;
+    -webkit-overflow-scrolling: touch;
+  }
+  .nav-item { height: 56px !important; }
+  .nav-link { font-size: 13px !important; white-space: nowrap; }
+
+  /* 顶部工具区 */
+  .top-tools { font-size: 13px !important; }
+  .top-tools .login-btn,
+  .top-tools .user-link { font-size: 13px !important; padding: 4px 8px !important; }
+
+  /* 页面容器 padding 收窄 */
+  .container { padding: 16px 12px !important; }
+  .page-header { margin-bottom: 16px !important; }
+  .section-title { font-size: 18px !important; }
+  .section-subtitle { font-size: 13px !important; }
+
+  /* 筛选条单列 */
+  .filter-bar { flex-direction: column !important; gap: 8px !important; }
+  .filter-input { width: 100% !important; font-size: 14px !important; }
+  .filter-select-wrap { width: 100% !important; }
+  .filter-select { width: 100% !important; }
+
+  /* 列表项卡片化 */
+  .list-card { padding: 12px !important; }
+  .list-card-title { font-size: 15px !important; }
+  .list-card-meta { font-size: 12px !important; gap: 8px !important; flex-wrap: wrap; }
+
+  /* 弹窗全屏 */
+  .pub-detail-dialog { width: 100vw !important; max-width: 100vw !important; }
+}
 </style>