style(nav-clients): 优化导航下拉侧边栏工程语言并升级合作企业卡片为标杆矩阵

public/assets/addons/official/css/modern_nhc.css

@@ -1267,25 +1267,42 @@ img {
 }
 
 .nhc-client-item {
-  height: 72px;
+  height: 80px;
   background: var(--bg-secondary);
   border: 1px solid var(--border-color);
   border-radius: var(--radius-sm);
   display: flex;
+  flex-direction: column;
   align-items: center;
   justify-content: center;
-  padding: 12px;
+  padding: 10px 14px;
+  transition: all 0.25s ease;
+}
+
+.nhc-client-name {
   font-family: var(--font-serif);
-  font-size: 13px;
-  color: var(--text-secondary);
-  font-weight: 600;
-  letter-spacing: 1px;
-  transition: all 0.2s ease;
+  font-size: 14px;
+  font-weight: 700;
+  color: var(--text-primary);
+  letter-spacing: 0.5px;
+  margin-bottom: 4px;
+  transition: color 0.2s;
+}
+
+.nhc-client-tag {
+  font-size: 11px;
+  color: var(--text-muted);
+  letter-spacing: 0.5px;
 }
 
 .nhc-client-item:hover {
   background: #FFFFFF;
   border-color: var(--primary);
+  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.08);
+  transform: translateY(-2px);
+}
+
+.nhc-client-item:hover .nhc-client-name {
   color: var(--primary);
 }