diff --git a/.memory/worklog.json b/.memory/worklog.json
index a4b2a7c..1690f65 100644
--- a/.memory/worklog.json
+++ b/.memory/worklog.json
@@ -1,18 +1,5 @@
 {
   "entries": [
-    {
-      "files_changed": 3,
-      "message": "Codex 会话活跃 · 最近命令：codex · 3 项未提交变更 · 最近提交：auto-save 2026-05-14 05:16 (~3)",
-      "ts": "2026-05-13T21:18:50Z",
-      "type": "session-heartbeat"
-    },
-    {
-      "files_changed": 3,
-      "hash": "4d02dcb",
-      "message": "auto-save 2026-05-14 05:21 (~3)",
-      "ts": "2026-05-14T05:21:54+08:00",
-      "type": "commit"
-    },
     {
       "files_changed": 1,
       "message": "Claude 会话活跃 · 最近命令：claude · 1 项未提交变更 · 最近提交：auto-save 2026-05-14 05:21 (~3)",
@@ -3264,6 +3251,19 @@
       "type": "session-heartbeat",
       "message": "Codex 会话活跃 · 最近命令：codex · 1 项未提交变更 · 最近提交：auto-save 2026-05-15 22:59 (~1)",
       "files_changed": 1
+    },
+    {
+      "ts": "2026-05-15T23:05:20+08:00",
+      "type": "commit",
+      "message": "auto-save 2026-05-15 23:05 (+1, ~4)",
+      "hash": "79c6c82",
+      "files_changed": 5
+    },
+    {
+      "ts": "2026-05-15T15:11:54Z",
+      "type": "session-heartbeat",
+      "message": "Codex 会话活跃 · 最近命令：codex · 1 项未提交变更 · 最近提交：auto-save 2026-05-15 23:05 (+1, ~4)",
+      "files_changed": 1
     }
   ]
 }
diff --git a/docs/source-analysis.html b/docs/source-analysis.html
index e04d073..f28d4f8 100644
--- a/docs/source-analysis.html
+++ b/docs/source-analysis.html
@@ -592,7 +592,7 @@
               <tbody>
                 <tr><td><code>web/next.config.mjs</code></td><td>Next.js 构建配置：静态导出、图片不走优化、禁用开发环境左下角 Next Dev Indicator，避免本地登录页截图出现额外字母标识。</td></tr>
                 <tr><td><code>web/app/page.tsx</code></td><td>产品工作台主状态：jobs、activeJobId、按 job 隔离的 selectedFrames/详情面板状态、clipboard、ReactFlow 节点和边；负责打开/找回画布工作面板。</td></tr>
-                <tr><td><code>web/app/login/page.tsx</code></td><td>生产登录页：访问账号/访问密钥表单、保持会话、错误/成功状态；当前只在原版 Digital Oasis 动态背景上叠加一个组合登录框，桌面端左侧是动态角色、右侧是无任何界面文字的图标化登录表单，并在面板左上角展示官网 SKG 字标。</td></tr>
+                <tr><td><code>web/app/login/page.tsx</code></td><td>生产登录页：访问账号/访问密钥表单、保持登录、错误/成功状态；当前只在原版 Digital Oasis 动态背景上叠加一个组合登录框，桌面端左侧是动态角色，右侧是图标化登录表单；面板左上角展示官网 SKG 字标和 <code>Marketing Studio</code> 系统标识。</td></tr>
                 <tr><td><code>web/app/login/layout.tsx</code></td><td>登录路由专属 layout：覆盖全站默认网页标题和描述为空，避免 <code>/login</code> 继承工作台 metadata 后在页面源码里继续出现登录界面文字以外的文案。</td></tr>
                 <tr><td><code>web/components/login/oasis-canvas.tsx</code></td><td>登录页全屏动态视觉层：用 iframe 直接承载下载包 <code>web/public/oasis-source/index.html</code> 的原 WebGPU / Three.js 草场源码；父级登录页只覆盖自己的文案和表单，并在捕获阶段把全局鼠标坐标同时用原生事件和 <code>postMessage</code> 转发给 iframe，避免登录面板或输入框遮挡时草地失去鼠标响应。</td></tr>
                 <tr><td><code>web/public/oasis-source/index.html</code></td><td>从下载包 <code>remix-3d-website-the-digital-o</code> 复制来的原始视觉源码。嵌入登录页时会隐藏 demo 站自己的导航、文字和设置面板，保留原多段滚动背景变化、WebGPU 草场、景深、风动和鼠标交互源码；末端阶段保留，只禁用原 footer 出现时把 canvas 上移的逻辑，避免底部露黑边。</td></tr>
@@ -947,6 +947,18 @@ SubjectAsset {
         <h2>变更记录</h2>
         <p>这个记录不是 git log 的替代品。它记录“产品理解发生了什么变化、影响了哪些源码、你以后描述需求时该怎么说”。后续每次改功能都要补一条。</p>
         <div class="changelog">
+          <article class="change">
+            <header>
+              <h3>2026-05-15 · 登录页补系统标识和保持登录</h3>
+              <span class="tag rose">UI</span>
+              <span class="tag violet">Login</span>
+            </header>
+            <div class="body">
+              <p><strong>问题：</strong>只放 SKG 字标还缺少具体系统识别；保持会话复选框没有文字说明；表单上方单独的小锁图标占位多余。</p>
+              <p><strong>改动：</strong><code>web/app/login/page.tsx</code> 在 SKG 字标旁加入 <code>Marketing Studio</code> 系统标识，复选框旁恢复“保持登录”，并删除表单上方独立锁图标；<code>web/app/globals.css</code> 增加品牌标识组合布局与移动端尺寸。</p>
+              <p><strong>影响：</strong><code>web/app/login/page.tsx</code>、<code>web/app/globals.css</code>、<code>docs/source-analysis.html</code>。</p>
+            </div>
+          </article>
           <article class="change">
             <header>
               <h3>2026-05-15 · 登录页加入 SKG 字标并增强角色立体感</h3>
diff --git a/web/app/globals.css b/web/app/globals.css
index 0ad7ebe..255eceb 100644
--- a/web/app/globals.css
+++ b/web/app/globals.css
@@ -400,16 +400,32 @@
   backdrop-filter: none;
   overflow: visible;
 }
-.login-skg-mark {
+.login-brand-cluster {
   position: absolute;
   left: 24px;
   top: 22px;
   z-index: 5;
+  display: flex;
+  align-items: center;
+  gap: 12px;
+  pointer-events: none;
+}
+.login-skg-mark {
   width: 126px;
   height: auto;
   opacity: 0.86;
   filter: invert(1) brightness(1.25) drop-shadow(0 10px 20px rgba(0, 0, 0, 0.45));
-  pointer-events: none;
+}
+.login-system-mark {
+  border-left: 1px solid rgba(255, 255, 255, 0.18);
+  padding-left: 12px;
+  color: rgba(255, 255, 255, 0.66);
+  font-size: 11px;
+  font-weight: 500;
+  letter-spacing: 0.18em;
+  line-height: 1;
+  text-transform: uppercase;
+  text-shadow: 0 10px 22px rgba(0, 0, 0, 0.38);
 }
 .login-page--source .login-auth-icon {
   margin-bottom: 0;
@@ -1212,11 +1228,21 @@
     justify-self: center;
     padding: 16px 18px 20px;
   }
-  .login-skg-mark {
+  .login-brand-cluster {
     left: 18px;
     top: 16px;
+    gap: 9px;
+  }
+  .login-skg-mark {
     width: 98px;
   }
+  .login-system-mark {
+    max-width: 92px;
+    padding-left: 9px;
+    font-size: 9px;
+    letter-spacing: 0.14em;
+    white-space: normal;
+  }
   .login-source-character-strip {
     height: 172px;
     margin-bottom: 12px;
diff --git a/web/app/login/page.tsx b/web/app/login/page.tsx
index d4be1ad..9be3472 100644
--- a/web/app/login/page.tsx
+++ b/web/app/login/page.tsx
@@ -82,17 +82,14 @@ export default function LoginPage() {
       <div className="login-oasis-shade" />
       <div className="login-source-overlay">
         <section className="login-auth-panel login-source-auth-panel login-source-combo-panel rounded-[8px]">
-          <img className="login-skg-mark" src="/skg-logo-black.svg" alt="" aria-hidden="true" />
+          <div className="login-brand-cluster" aria-hidden="true">
+            <img className="login-skg-mark" src="/skg-logo-black.svg" alt="" />
+            <span className="login-system-mark">Marketing Studio</span>
+          </div>
           <div className="login-source-character-strip" aria-hidden="true">
             <AnimatedLoginCharacters mood={mood} eyeOffset={eyeOffset} />
           </div>
           <form className="login-source-form-pane w-full" onSubmit={onSubmit}>
-            <div className="mb-4">
-              <div className="login-auth-icon inline-flex h-9 w-9 items-center justify-center rounded-[8px] text-white">
-                <LockKeyhole className="h-5 w-5" />
-              </div>
-            </div>
-
             <div className="space-y-3">
               <label className="block">
                 <span className="flex h-11 items-center gap-3 rounded-[8px] border border-white/10 bg-black/25 px-3 text-white transition focus-within:border-[#d6b36a] focus-within:bg-black/35 focus-within:ring-2 focus-within:ring-[#d6b36a]/25">
@@ -149,6 +146,7 @@ export default function LoginPage() {
                 disabled={disabled}
                 onChange={(event) => setRemember(event.target.checked)}
               />
+              <span>保持登录</span>
             </label>
 
             <div className="mt-4 min-h-9">