diff --git a/frontend/src/views/components/ThirdPartyAuthorization/ThirdPartyAuthorization.css b/frontend/src/views/components/ThirdPartyAuthorization/ThirdPartyAuthorization.css
index 35cdbbe..2cfe7af 100644
--- a/frontend/src/views/components/ThirdPartyAuthorization/ThirdPartyAuthorization.css
+++ b/frontend/src/views/components/ThirdPartyAuthorization/ThirdPartyAuthorization.css
@@ -58,8 +58,28 @@
   gap: 10px;
 }
 
-.btn-primary-action {
-  font-weight: 600;
+/* 核心主要操作按钮：高对比度实心显色，杜绝半透明或虚化 */
+.btn-primary-action,
+.btn-primary-action.el-button--primary {
+  background-color: var(--pm-primary-color) !important;
+  border-color: var(--pm-primary-color) !important;
+  color: #ffffff !important;
+  font-weight: 600 !important;
+  opacity: 1 !important;
+  box-shadow: 0 2px 6px rgba(0, 113, 227, 0.25);
+  transition: all 0.2s ease;
+}
+
+.btn-primary-action.el-button--primary:hover {
+  background-color: var(--pm-primary-hover, #0077ed) !important;
+  border-color: var(--pm-primary-hover, #0077ed) !important;
+  color: #ffffff !important;
+  transform: translateY(-1px);
+  box-shadow: 0 4px 12px rgba(0, 113, 227, 0.35);
+}
+
+.btn-primary-action.el-button--primary:active {
+  transform: translateY(0);
 }
 
 /* 卡片内容区域 */
@@ -253,6 +273,10 @@
   color: var(--pm-text-primary);
 }
 
+.btn-card-copy {
+  font-weight: 600;
+}
+
 .proto-fields {
   display: flex;
   flex-direction: column;
@@ -287,67 +311,6 @@
   font-weight: 700;
 }
 
-/* 模块 3：配置提示与常见问题卡片 */
-.instructions-card {
-  background: var(--pm-bg-secondary);
-}
-
-.instructions-content {
-  display: grid;
-  grid-template-columns: repeat(3, 1fr);
-  gap: 14px;
-}
-
-.instruct-item {
-  display: flex;
-  gap: 12px;
-  padding: 12px 14px;
-  background: var(--pm-bg-primary);
-  border: 1px solid var(--pm-border-color);
-  border-radius: var(--pm-radius-sm);
-}
-
-.instruct-num {
-  flex-shrink: 0;
-  width: 24px;
-  height: 24px;
-  border-radius: 50%;
-  background: color-mix(in srgb, var(--pm-primary-color) 16%, var(--pm-bg-secondary));
-  color: var(--pm-primary-color);
-  display: flex;
-  align-items: center;
-  justify-content: center;
-  font-size: 13px;
-  font-weight: 700;
-}
-
-.instruct-body {
-  display: flex;
-  flex-direction: column;
-  gap: 4px;
-  min-width: 0;
-}
-
-.instruct-title {
-  font-size: 13px;
-  font-weight: 700;
-  color: var(--pm-text-primary);
-}
-
-.instruct-desc {
-  font-size: 12px;
-  line-height: 1.5;
-  color: var(--pm-text-secondary);
-}
-
-.instruct-desc code {
-  padding: 1px 4px;
-  border-radius: 3px;
-  background: color-mix(in srgb, var(--pm-primary-color) 10%, var(--pm-bg-secondary));
-  color: var(--pm-primary-color);
-  font-family: monospace;
-}
-
 /* 弹窗通用紧凑样式 */
 .compact-dialog .dialog-tip {
   margin: 0 0 14px;
@@ -363,8 +326,7 @@
 }
 
 @media (max-width: 960px) {
-  .proto-grid,
-  .instructions-content {
+  .proto-grid {
     grid-template-columns: 1fr;
   }
   .card-header-bar {
diff --git a/frontend/src/views/components/ThirdPartyAuthorization/ThirdPartyAuthorization.vue b/frontend/src/views/components/ThirdPartyAuthorization/ThirdPartyAuthorization.vue
index 6222af9..3894d2f 100644
--- a/frontend/src/views/components/ThirdPartyAuthorization/ThirdPartyAuthorization.vue
+++ b/frontend/src/views/components/ThirdPartyAuthorization/ThirdPartyAuthorization.vue
@@ -1,7 +1,7 @@
 <template>
   <div class="third-party-authorization" v-loading="loading">
     <section class="authorization-section">
-      <!-- 模块 1：客户端与专属授权码管理卡片 -->
+      <!-- 客户端与专属授权码管理卡片 -->
       <div class="panel-card client-control-card">
         <div class="card-header-bar">
           <div class="header-left">
@@ -122,15 +122,16 @@
             <el-button
               type="primary"
               size="default"
+              class="btn-primary-action"
               @click="openCreateDialog"
             >
-              立即新增客户端
+              + 立即新增客户端
             </el-button>
           </div>
         </div>
       </div>
 
-      <!-- 模块 2：通用客户端配置参数卡片 -->
+      <!-- 通用客户端配置参数卡片 -->
       <div class="panel-card proto-guide-card">
         <div class="card-header-bar">
           <div class="header-left">
@@ -151,6 +152,7 @@
                 type="primary"
                 link
                 size="small"
+                class="btn-card-copy"
                 @click="copyText(`imap.${currentDomain || 'solit.cn'}:993`, 'IMAP 参数')"
               >
                 复制
@@ -184,6 +186,7 @@
                 type="primary"
                 link
                 size="small"
+                class="btn-card-copy"
                 @click="copyText(`pop.${currentDomain || 'solit.cn'}:995`, 'POP3 参数')"
               >
                 复制
@@ -217,6 +220,7 @@
                 type="primary"
                 link
                 size="small"
+                class="btn-card-copy"
                 @click="copyText(`smtp.${currentDomain || 'solit.cn'}:465`, 'SMTP 参数')"
               >
                 复制
@@ -240,41 +244,6 @@
           </div>
         </div>
       </div>
-
-      <!-- 模块 3：客户端使用与排错说明卡片（充实页面、解决大面积留白） -->
-      <div class="panel-card instructions-card">
-        <div class="card-header-bar">
-          <div class="header-left">
-            <span class="main-title">配置提示与常见问题</span>
-          </div>
-        </div>
-
-        <div class="instructions-content">
-          <div class="instruct-item">
-            <span class="instruct-num">1</span>
-            <div class="instruct-body">
-              <div class="instruct-title">一机一码隔离保护</div>
-              <div class="instruct-desc">建议手机、办公电脑与备用客户端分别创建专属授权码。若设备遗失或更换，仅需在上方撤销对应客户端，其他设备与主密码完全不受影响。</div>
-            </div>
-          </div>
-
-          <div class="instruct-item">
-            <span class="instruct-num">2</span>
-            <div class="instruct-body">
-              <div class="instruct-title">登录用户名规范</div>
-              <div class="instruct-desc">第三方客户端的“账户名称/用户名”一栏可直接填写账号名（如 <code>xuans</code>）或完整邮箱（如 <code>xuans@{{ currentDomain || 'solit.cn' }}</code>），密码填写生成的专属授权码。</div>
-            </div>
-          </div>
-
-          <div class="instruct-item">
-            <span class="instruct-num">3</span>
-            <div class="instruct-body">
-              <div class="instruct-title">证书信任与安全握手</div>
-              <div class="instruct-desc">当前邮件系统所有协议均强制启用安全加密连接。如使用第三方邮件软件出现证书提示，请确认服务器域名解析是否正确指向当前邮件服务器。</div>
-            </div>
-          </div>
-        </div>
-      </div>
     </section>
 
     <!-- 新增客户端弹窗 -->
@@ -309,6 +278,7 @@
           <el-button
             type="primary"
             size="default"
+            class="btn-primary-action"
             :loading="createLoading"
             :disabled="!newClientName.trim()"
             @click="submitCreateClient"
@@ -351,6 +321,7 @@
           <el-button
             type="primary"
             size="default"
+            class="btn-primary-action"
             :loading="verifyLoading"
             :disabled="!verifyPassword.trim()"
             @click="submitVerifyAndReveal"