diff --git a/404.html b/404.html
new file mode 100644
index 0000000..4d991eb
--- /dev/null
+++ b/404.html
@@ -0,0 +1,297 @@
+{include file="header"}
+<!-- 当前页面 -->
+<style>
+  /* 404 页面专属样式 */
+  .error-page {
+    min-height: calc(100vh - 72px);
+    display: flex;
+    align-items: center;
+    justify-content: center;
+    background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
+    position: relative;
+    overflow: hidden;
+  }
+
+  /* 背景动画网格 */
+  .error-page::before {
+    content: '';
+    position: absolute;
+    top: 0;
+    left: 0;
+    right: 0;
+    bottom: 0;
+    background-image:
+      linear-gradient(rgba(56, 189, 248, 0.1) 1px, transparent 1px),
+      linear-gradient(90deg, rgba(56, 189, 248, 0.1) 1px, transparent 1px);
+    background-size: 50px 50px;
+    animation: gridMove 20s linear infinite;
+    opacity: 0.3;
+  }
+
+  @keyframes gridMove {
+    0% {
+      transform: translate(0, 0);
+    }
+    100% {
+      transform: translate(50px, 50px);
+    }
+  }
+
+  /* 光晕效果 */
+  .error-page::after {
+    content: '';
+    position: absolute;
+    width: 600px;
+    height: 600px;
+    background: radial-gradient(circle, rgba(56, 189, 248, 0.15) 0%, transparent 70%);
+    top: 50%;
+    left: 50%;
+    transform: translate(-50%, -50%);
+    animation: pulse 4s ease-in-out infinite;
+  }
+
+  @keyframes pulse {
+    0%, 100% {
+      transform: translate(-50%, -50%) scale(1);
+      opacity: 0.5;
+    }
+    50% {
+      transform: translate(-50%, -50%) scale(1.2);
+      opacity: 0.8;
+    }
+  }
+
+  .error-container {
+    text-align: center;
+    position: relative;
+    z-index: 1;
+    padding: 40px 20px;
+  }
+
+  .error-code {
+    font-size: 180px;
+    font-weight: 900;
+    line-height: 1;
+    background: linear-gradient(135deg, #38BDF8 0%, #6366F1 100%);
+    -webkit-background-clip: text;
+    -webkit-text-fill-color: transparent;
+    background-clip: text;
+    margin-bottom: 20px;
+    text-shadow: 0 0 80px rgba(56, 189, 248, 0.5);
+    animation: glitch 3s infinite;
+  }
+
+  @keyframes glitch {
+    0%, 90%, 100% {
+      transform: translate(0);
+    }
+    92% {
+      transform: translate(-2px, 2px);
+    }
+    94% {
+      transform: translate(2px, -2px);
+    }
+    96% {
+      transform: translate(-2px, -2px);
+    }
+    98% {
+      transform: translate(2px, 2px);
+    }
+  }
+
+  .error-title {
+    font-size: 36px;
+    font-weight: 700;
+    color: #fff;
+    margin-bottom: 16px;
+    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
+  }
+
+  .error-description {
+    font-size: 18px;
+    color: rgba(255, 255, 255, 0.7);
+    margin-bottom: 40px;
+    max-width: 600px;
+    margin-left: auto;
+    margin-right: auto;
+    line-height: 1.6;
+  }
+
+  .error-actions {
+    display: flex;
+    gap: 20px;
+    justify-content: center;
+    flex-wrap: wrap;
+  }
+
+  .error-btn {
+    padding: 14px 32px;
+    font-size: 16px;
+    font-weight: 600;
+    border-radius: 0;
+    cursor: pointer;
+    transition: all 0.3s ease;
+    text-decoration: none;
+    display: inline-flex;
+    align-items: center;
+    gap: 8px;
+  }
+
+  .error-btn-primary {
+    background: linear-gradient(135deg, #38BDF8 0%, #6366F1 100%);
+    color: #fff;
+    border: none;
+    box-shadow: 0 10px 30px rgba(56, 189, 248, 0.4);
+  }
+
+  .error-btn-primary:hover {
+    box-shadow: 0 14px 36px rgba(56, 189, 248, 0.6);
+    transform: translateY(-2px);
+    color: #fff;
+  }
+
+  .error-btn-secondary {
+    background: rgba(255, 255, 255, 0.1);
+    color: #fff;
+    border: 1px solid rgba(255, 255, 255, 0.2);
+    backdrop-filter: blur(10px);
+  }
+
+  .error-btn-secondary:hover {
+    background: rgba(255, 255, 255, 0.15);
+    border-color: rgba(255, 255, 255, 0.3);
+    transform: translateY(-2px);
+    color: #fff;
+  }
+
+  .error-suggestions {
+    margin-top: 60px;
+    padding-top: 40px;
+    border-top: 1px solid rgba(255, 255, 255, 0.1);
+  }
+
+  .error-suggestions h3 {
+    font-size: 20px;
+    color: #fff;
+    margin-bottom: 24px;
+    font-weight: 600;
+  }
+
+  .error-links {
+    display: flex;
+    gap: 16px;
+    justify-content: center;
+    flex-wrap: wrap;
+  }
+
+  .error-link {
+    color: rgba(255, 255, 255, 0.7);
+    text-decoration: none;
+    font-size: 15px;
+    transition: all 0.3s ease;
+    padding: 8px 16px;
+    border-radius: 4px;
+    background: rgba(255, 255, 255, 0.05);
+  }
+
+  .error-link:hover {
+    color: #38BDF8;
+    background: rgba(56, 189, 248, 0.1);
+    transform: translateY(-2px);
+  }
+
+  /* 响应式设计 */
+  @media screen and (max-width: 767px) {
+    .error-code {
+      font-size: 120px;
+    }
+
+    .error-title {
+      font-size: 28px;
+    }
+
+    .error-description {
+      font-size: 16px;
+      padding: 0 20px;
+    }
+
+    .error-actions {
+      flex-direction: column;
+      align-items: center;
+    }
+
+    .error-btn {
+      width: 100%;
+      max-width: 300px;
+      justify-content: center;
+    }
+
+    .error-links {
+      flex-direction: column;
+      align-items: center;
+    }
+
+    .error-link {
+      width: 100%;
+      max-width: 300px;
+      text-align: center;
+    }
+  }
+
+  @media screen and (max-width: 575px) {
+    .error-code {
+      font-size: 100px;
+    }
+
+    .error-title {
+      font-size: 24px;
+    }
+
+    .error-description {
+      font-size: 14px;
+    }
+  }
+</style>
+
+</head>
+
+<body>
+  <header>{include file="public/header"}</header>
+
+  <section class="error-page">
+    <div class="error-container">
+      <div class="error-code">404</div>
+      <h1 class="error-title">页面未找到</h1>
+      <p class="error-description">
+        抱歉，您访问的页面不存在或已被移除。<br>
+        请检查 URL 是否正确，或返回首页继续浏览。
+      </p>
+
+      <div class="error-actions">
+        <a href="/index.html" class="error-btn error-btn-primary">
+          <span class="iconfont icon-home"></span>
+          返回首页
+        </a>
+        <a href="javascript:history.back()" class="error-btn error-btn-secondary">
+          <span class="iconfont icon-arrow-left"></span>
+          返回上一页
+        </a>
+      </div>
+
+      <div class="error-suggestions">
+        <h3>您可能想访问</h3>
+        <div class="error-links">
+          <a href="/cloud.html" class="error-link">云服务器</a>
+          <a href="/dedicated.html" class="error-link">物理裸机</a>
+          <a href="/domain.html" class="error-link">域名注册</a>
+          <a href="/document.html" class="error-link">文档中心</a>
+          <a href="/contact.html" class="error-link">联系我们</a>
+        </div>
+      </div>
+    </div>
+  </section>
+
+  {include file="public/footer"}
+</body>
+
+</html>