diff --git a/admin.php b/admin.php
index e57b9ef..3bd905c 100644
--- a/admin.php
+++ b/admin.php
@@ -63,25 +63,41 @@ $site_logo = $settings['site_logo'] ?? 'assets/pasted-20260207-134833-7329dc42.j
             padding: 40px; 
             min-height: 100vh; 
         }
-        @media (max-width: 768px) {
+        @media (max-width: 991px) {
             .sidebar { 
                 width: 100%; 
                 height: auto; 
-                position: relative; 
-                padding-bottom: 10px;
+                position: fixed; 
+                top: 0;
+                left: 0;
+                padding: 5px 0;
+                display: flex;
+                flex-wrap: nowrap;
+                overflow-x: auto;
+                justify-content: flex-start;
+                box-shadow: 0 2px 10px rgba(0,0,0,0.2);
             }
             .main-content { 
                 margin-left: 0; 
-                padding: 20px; 
+                padding: 80px 15px 20px 15px; 
             }
-            .sidebar a { display: inline-block; padding: 10px 15px; }
-            .sidebar hr { display: none; }
+            .sidebar a { 
+                padding: 10px 15px; 
+                white-space: nowrap; 
+                font-size: 0.85rem;
+                border-left: none !important;
+                border-bottom: 3px solid transparent;
+            }
+            .sidebar a.active {
+                border-bottom: 3px solid #d4af37;
+            }
+            .sidebar hr, .sidebar .text-center { display: none !important; }
         }
     </style>
 </head>
 <body>
     <div class="sidebar">
-        <div class="text-center mb-4 px-3 d-none d-md-block">
+        <div class="text-center mb-4 px-3">
             <?php if($site_logo): ?>
                 <img src="<?php echo htmlspecialchars($site_logo); ?>" alt="Logo" class="img-fluid mb-2" style="max-height: 60px; border-radius: 8px;">
             <?php endif; ?>
@@ -89,7 +105,6 @@ $site_logo = $settings['site_logo'] ?? 'assets/pasted-20260207-134833-7329dc42.j
         </div>
         <a href="admin.php" class="active"><i class="bi bi-gear-fill me-2"></i> 系统设置</a>
         <a href="admin_steps.php"><i class="bi bi-chat-dots-fill me-2"></i> 话术管理</a>
-        <hr>
         <a href="index.php" target="_blank"><i class="bi bi-eye me-2"></i> 查看前台</a>
         <a href="logout.php"><i class="bi bi-box-arrow-right me-2"></i> 退出登录</a>
     </div>
@@ -135,4 +150,4 @@ $site_logo = $settings['site_logo'] ?? 'assets/pasted-20260207-134833-7329dc42.j
         </div>
     </div>
 </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/admin_steps.php b/admin_steps.php
index 1140c13..4b8eff6 100644
--- a/admin_steps.php
+++ b/admin_steps.php
@@ -79,26 +79,42 @@ if ($edit_day > 0) {
             padding: 40px; 
             min-height: 100vh; 
         }
-        @media (max-width: 768px) {
+        @media (max-width: 991px) {
             .sidebar { 
                 width: 100%; 
                 height: auto; 
-                position: relative; 
-                padding-bottom: 10px;
+                position: fixed; 
+                top: 0;
+                left: 0;
+                padding: 5px 0;
+                display: flex;
+                flex-wrap: nowrap;
+                overflow-x: auto;
+                justify-content: flex-start;
+                box-shadow: 0 2px 10px rgba(0,0,0,0.2);
             }
             .main-content { 
                 margin-left: 0; 
-                padding: 20px; 
+                padding: 80px 15px 20px 15px; 
             }
-            .sidebar a { display: inline-block; padding: 10px 15px; }
-            .sidebar hr { display: none; }
+            .sidebar a { 
+                padding: 10px 15px; 
+                white-space: nowrap; 
+                font-size: 0.85rem;
+                border-left: none !important;
+                border-bottom: 3px solid transparent;
+            }
+            .sidebar a.active {
+                border-bottom: 3px solid #d4af37;
+            }
+            .sidebar hr, .sidebar .text-center { display: none !important; }
         }
         .card-header { font-weight: bold; }
     </style>
 </head>
 <body>
     <div class="sidebar">
-        <div class="text-center mb-4 px-3 d-none d-md-block">
+        <div class="text-center mb-4 px-3">
             <?php if($site_logo): ?>
                 <img src="<?php echo htmlspecialchars($site_logo); ?>" alt="Logo" class="img-fluid mb-2" style="max-height: 60px; border-radius: 8px;">
             <?php endif; ?>
@@ -106,7 +122,6 @@ if ($edit_day > 0) {
         </div>
         <a href="admin.php"><i class="bi bi-gear-fill me-2"></i> 系统设置</a>
         <a href="admin_steps.php" class="active"><i class="bi bi-chat-dots-fill me-2"></i> 话术管理</a>
-        <hr>
         <a href="index.php" target="_blank"><i class="bi bi-eye me-2"></i> 查看前台</a>
         <a href="logout.php"><i class="bi bi-box-arrow-right me-2"></i> 退出登录</a>
     </div>
@@ -114,7 +129,7 @@ if ($edit_day > 0) {
     <div class="main-content">
         <div class="container-fluid">
             <div class="d-flex justify-content-between align-items-center mb-4">
-                <h3>话术管理 (1-7天步骤)</h3>
+                <h3>话术管理</h3>
             </div>
 
             <?php if($message): ?>
@@ -208,4 +223,4 @@ if ($edit_day > 0) {
         </div>
     </div>
 </body>
-</html>
+</html>
\ No newline at end of file
diff --git a/assets/css/custom.css b/assets/css/custom.css
index 1af9f91..c5931f8 100644
--- a/assets/css/custom.css
+++ b/assets/css/custom.css
@@ -59,24 +59,25 @@ body {
     color: #fff;
     transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
     position: fixed;
+    top: 0;
+    left: 0;
     height: 100vh;
     z-index: 1050;
     box-shadow: 4px 0 10px rgba(0,0,0,0.1);
 }
 
 #content {
-    width: calc(100% - var(--sidebar-width));
-    margin-left: var(--sidebar-width);
+    width: 100%;
     padding: 40px;
+    margin-left: var(--sidebar-width);
     transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
 }
 
 /* Sidebar toggled state (desktop) */
 #sidebar.collapsed {
-    margin-left: -var(--sidebar-width);
+    transform: translateX(-100%);
 }
 #content.expanded {
-    width: 100%;
     margin-left: 0;
 }
 
@@ -125,7 +126,7 @@ body {
     width: 100%;
     height: 60px;
     background: var(--secondary-color);
-    display: flex;
+    display: none;
     align-items: center;
     justify-content: space-between;
     padding: 0 15px;
@@ -136,7 +137,11 @@ body {
 .mobile-logo-text {
     color: var(--primary-color);
     font-weight: bold;
-    font-size: 1.1rem;
+    font-size: 1rem;
+    white-space: nowrap;
+    overflow: hidden;
+    text-overflow: ellipsis;
+    max-width: 200px;
 }
 
 #sidebarCollapseMobile {
@@ -159,22 +164,22 @@ body {
 /* Floating TG Button */
 .tg-float {
     position: fixed;
-    right: 25px;
-    bottom: 100px;
+    right: 20px;
+    bottom: 90px;
     z-index: 1001;
     text-align: center;
 }
 
 .tg-btn {
-    width: 55px;
-    height: 55px;
+    width: 50px;
+    height: 50px;
     background-color: #0088cc;
     color: white;
     border-radius: 50%;
     display: flex;
     align-items: center;
     justify-content: center;
-    font-size: 28px;
+    font-size: 24px;
     box-shadow: 0 4px 15px rgba(0,0,0,0.3);
     text-decoration: none;
     animation: pulse-tg 2s infinite;
@@ -182,34 +187,33 @@ body {
 
 .tg-btn:hover {
     color: #fff;
-    transform: scale(1.05);
 }
 
 .tg-text {
     display: block;
-    font-size: 11px;
+    font-size: 10px;
     margin-top: 5px;
     background: rgba(0,0,0,0.7);
     color: #fff;
-    padding: 2px 8px;
+    padding: 2px 6px;
     border-radius: 10px;
 }
 
 @keyframes pulse-tg {
     0% { box-shadow: 0 0 0 0 rgba(0, 136, 204, 0.7); }
-    70% { box-shadow: 0 0 0 15px rgba(0, 136, 204, 0); }
+    70% { box-shadow: 0 0 0 12px rgba(0, 136, 204, 0); }
     100% { box-shadow: 0 0 0 0 rgba(0, 136, 204, 0); }
 }
 
 /* Back to Top */
 #back-to-top {
     position: fixed;
-    bottom: 25px;
-    right: 25px;
+    bottom: 20px;
+    right: 20px;
     display: none;
     z-index: 1001;
-    width: 45px;
-    height: 45px;
+    width: 40px;
+    height: 40px;
 }
 
 /* Content Cards */
@@ -272,33 +276,44 @@ body {
 }
 
 footer {
-    padding: 50px 0;
+    padding: 40px 0;
     text-align: center;
     border-top: 1px solid #eee;
-    margin-top: 40px;
+    margin-top: 30px;
 }
 
 /* Responsive Adjustments */
-@media (max-width: 768px) {
+@media (max-width: 991px) {
     #sidebar { 
-        margin-left: -var(--sidebar-width); 
+        transform: translateX(-100%);
+        z-index: 2000;
     }
     #sidebar.active { 
-        margin-left: 0; 
+        transform: translateX(0);
     }
     #content { 
-        width: 100%; 
         margin-left: 0; 
-        padding: 80px 15px 20px 15px; 
+        padding: 85px 12px 20px 12px; 
+    }
+    .mobile-nav {
+        display: flex;
     }
     
-    .section-title-container h2 {
-        font-size: 1.4rem;
+    .section-title-container {
+        flex-direction: column;
+        align-items: flex-start !important;
+        margin-bottom: 20px !important;
+    }
+    
+    .page-title {
+        font-size: 1.2rem !important;
+        font-weight: 800;
+        line-height: 1.4;
     }
     
     .card-header {
-        padding: 12px 15px;
-        font-size: 0.95rem;
+        padding: 10px 15px;
+        font-size: 0.85rem;
     }
     
     .card-body {
@@ -306,26 +321,28 @@ footer {
     }
     
     .text-content {
-        font-size: 0.95rem;
+        font-size: 0.9rem;
     }
     
     .watermark-item {
-        padding: 50px;
+        padding: 40px;
+        font-size: 16px;
     }
     
-    .tg-float {
-        right: 15px;
-        bottom: 80px;
+    .content-card {
+        border-radius: 10px;
+        margin-bottom: 15px;
     }
-    
-    #back-to-top {
-        right: 15px;
-        bottom: 20px;
+
+    /* Stack columns on mobile */
+    .row.g-3 > .col-md-6 {
+        flex: 0 0 100%;
+        max-width: 100%;
     }
 }
 
 /* Desktop Hover Effects */
-@media (min-width: 769px) {
+@media (min-width: 992px) {
     .content-card {
         transition: transform 0.2s;
     }
diff --git a/assets/js/main.js b/assets/js/main.js
index ac15388..4a253f0 100644
--- a/assets/js/main.js
+++ b/assets/js/main.js
@@ -16,7 +16,7 @@ document.addEventListener('DOMContentLoaded', function () {
     // Sidebar Toggle for Desktop (Content button)
     if (sidebarCollapse) {
         sidebarCollapse.addEventListener('click', function () {
-            if (window.innerWidth > 768) {
+            if (window.innerWidth >= 992) {
                 sidebar.classList.toggle('collapsed');
                 content.classList.toggle('expanded');
                 // Change icon
@@ -72,7 +72,7 @@ document.addEventListener('DOMContentLoaded', function () {
 
     // Resize handler to clean up states
     window.addEventListener('resize', function() {
-        if (window.innerWidth > 768) {
+        if (window.innerWidth >= 992) {
             sidebar.classList.remove('active');
             if (overlay) overlay.style.display = 'none';
             document.body.style.overflow = 'auto';
@@ -81,4 +81,4 @@ document.addEventListener('DOMContentLoaded', function () {
             content.classList.remove('expanded');
         }
     });
-});
\ No newline at end of file
+});
diff --git a/index.php b/index.php
index e08a0ec..68683a6 100644
--- a/index.php
+++ b/index.php
@@ -64,7 +64,7 @@ if (!$step) {
     </div>
 
     <!-- Mobile Top Nav -->
-    <nav class="mobile-nav d-md-none">
+    <nav class="mobile-nav d-lg-none">
         <button type="button" id="sidebarCollapseMobile" class="btn text-white">
             <i class="bi bi-list"></i>
         </button>
@@ -116,9 +116,9 @@ if (!$step) {
         <div id="content">
             <div class="container-fluid">
                 <div class="d-flex justify-content-between align-items-center mb-4 section-title-container">
-                    <h2><?php echo htmlspecialchars($step['title']); ?> <span class="step-badge">Day <?php echo $current_day; ?></span></h2>
-                    <!-- Desktop sidebar collapse (optional) -->
-                    <button type="button" id="sidebarCollapse" class="btn btn-outline-dark d-none d-md-block">
+                    <h2 class="page-title"><?php echo htmlspecialchars($step['title']); ?> <span class="step-badge">Day <?php echo $current_day; ?></span></h2>
+                    <!-- Desktop sidebar collapse -->
+                    <button type="button" id="sidebarCollapse" class="btn btn-outline-dark d-none d-lg-block">
                         <i class="bi bi-text-indent-left"></i>
                     </button>
                 </div>
@@ -210,4 +210,4 @@ if (!$step) {
     <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.js"></script>
     <script src="assets/js/main.js?v=<?php echo time(); ?>"></script>
 </body>
-</html>
\ No newline at end of file
+</html>
