diff --git a/电商AI平台/assets/logo-dark.png b/电商AI平台/assets/logo-dark.png
new file mode 100644
index 0000000..42f1fdb
Binary files /dev/null and b/电商AI平台/assets/logo-dark.png differ
diff --git a/电商AI平台/assets/logo.png b/电商AI平台/assets/logo.png
new file mode 100644
index 0000000..94121b1
Binary files /dev/null and b/电商AI平台/assets/logo.png differ
diff --git a/电商AI平台/assets/restraint.css b/电商AI平台/assets/restraint.css
index b6edd96..a8a3eac 100644
--- a/电商AI平台/assets/restraint.css
+++ b/电商AI平台/assets/restraint.css
@@ -230,7 +230,8 @@ aside.sidebar {
   height: 100vh;
   overflow-y: auto;
 }
-.brand { display: flex; align-items: center; gap: 10px; padding: 6px 8px 16px; }
+.brand { display: flex; align-items: center; padding: 2px 8px 16px; min-height: 44px; }
+.brand-logo { display: block; width: 142px; height: auto; margin: -8px 0 -6px -8px; object-fit: contain; }
 .brand-mark, .flame { width: 22px; height: 22px; color: var(--heat); }
 .brand-mark svg, .flame svg { width: 100%; height: 100%; }
 .brand .name { font-weight: 600; font-size: 18px; letter-spacing: -.012em; color: var(--accent-black); }
diff --git a/电商AI平台/assets/shell.js b/电商AI平台/assets/shell.js
index 4462644..da9f0ed 100644
--- a/电商AI平台/assets/shell.js
+++ b/电商AI平台/assets/shell.js
@@ -57,8 +57,7 @@ window.Shell = {
     const sidebar = `
       <aside class="sidebar">
         <div class="brand">
-          <div class="brand-mark">${ShellIcon('airshelf', { size: 22 })}</div>
-          <div><div class="name">Airshelf</div></div>
+          <img class="brand-logo" src="assets/logo.png" alt="Airshelf">
         </div>
         <div class="search-box" onclick="document.getElementById('global-search').focus()">
           ${ShellIcon('search')}
diff --git a/电商AI平台/login.html b/电商AI平台/login.html
index c2d72cf..82ace7c 100644
--- a/电商AI平台/login.html
+++ b/电商AI平台/login.html
@@ -24,9 +24,8 @@
 
   /* 左侧品牌区 · 深色 */
   .auth-brand { background: var(--accent-black); color: var(--accent-white); padding: 40px 44px; display: flex; flex-direction: column; position: relative; overflow: hidden; }
-  .auth-brand .logo { display: flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 700; letter-spacing: -.01em; }
-  .auth-brand .logo .ic { width: 28px; height: 28px; background: var(--heat); border-radius: 6px; display: grid; place-items: center; }
-  .auth-brand .logo .ic svg { width: 16px; height: 16px; color: var(--accent-white); }
+  .auth-brand .logo { display: flex; align-items: center; height: 56px; }
+  .auth-brand .logo-img { display: block; width: 196px; height: auto; margin: -14px 0 -10px -14px; object-fit: contain; }
   .auth-brand .tag { font-family: var(--font-mono); font-size: 10.5px; color: rgba(255,255,255,.5); letter-spacing: .08em; text-transform: uppercase; margin-top: 4px; }
 
   .auth-brand .hero { margin-top: auto; margin-bottom: auto; }
@@ -107,8 +106,7 @@
   <!-- 左:品牌 -->
   <aside class="auth-brand">
     <div class="logo">
-      <span class="ic"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><path d="M4.5 19 12 4.5 19.5 19"/><path d="M8 14h8"/><path d="M7 17h10"/><path d="M9.5 10.3c1.5-1.2 3.5-1.2 5 0"/></svg></span>
-      <span>Airshelf</span>
+      <img class="logo-img" src="assets/logo-dark.png" alt="Airshelf">
     </div>
     <div class="tag">// SHORT-VIDEO COMMERCE PLATFORM</div>
 
diff --git a/电商AI平台/register.html b/电商AI平台/register.html
index 6a6cf71..1840d94 100644
--- a/电商AI平台/register.html
+++ b/电商AI平台/register.html
@@ -24,9 +24,8 @@
 
   /* 左:品牌 + 价值点 */
   .auth-brand { background: var(--accent-black); color: var(--accent-white); padding: 40px 44px; display: flex; flex-direction: column; position: relative; overflow: hidden; }
-  .auth-brand .logo { display: flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 700; letter-spacing: -.01em; }
-  .auth-brand .logo .ic { width: 28px; height: 28px; background: var(--heat); border-radius: 6px; display: grid; place-items: center; }
-  .auth-brand .logo .ic svg { width: 16px; height: 16px; color: var(--accent-white); }
+  .auth-brand .logo { display: flex; align-items: center; height: 56px; }
+  .auth-brand .logo-img { display: block; width: 196px; height: auto; margin: -14px 0 -10px -14px; object-fit: contain; }
   .auth-brand .tag { font-family: var(--font-mono); font-size: 10.5px; color: rgba(255,255,255,.5); letter-spacing: .08em; text-transform: uppercase; margin-top: 4px; }
 
   .auth-brand .hero { margin-top: 28px; }
@@ -101,8 +100,7 @@
 
   <aside class="auth-brand">
     <div class="logo">
-      <span class="ic"><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" stroke-linejoin="round"><path d="M4.5 19 12 4.5 19.5 19"/><path d="M8 14h8"/><path d="M7 17h10"/><path d="M9.5 10.3c1.5-1.2 3.5-1.2 5 0"/></svg></span>
-      <span>Airshelf</span>
+      <img class="logo-img" src="assets/logo-dark.png" alt="Airshelf">
     </div>
     <div class="tag">// SHORT-VIDEO COMMERCE PLATFORM</div>