diff --git a/index.html b/index.html
new file mode 100644
index 0000000..5951193
--- /dev/null
+++ b/index.html
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+<!DOCTYPE html>
+<html lang="zh">
+
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1.0">
+    <title>进制转换器</title>
+    <link rel="stylesheet" href="styles.css">
+</head>
+
+<body>
+    <div class="container">
+        <h1>进制转换器</h1>
+        <input type="text" id="input" placeholder="输入数字">
+
+        <label for="from-base">选择源进制:</label>
+        <select id="from-base">
+            <option value="2">二进制</option>
+            <option value="10">十进制</option>
+            <option value="8">八进制</option>
+            <option value="16">十六进制</option>
+        </select>
+
+        <label for="to-base">选择目标进制:</label>
+        <select id="to-base">
+            <option value="2">二进制</option>
+            <option value="10">十进制</option>
+            <option value="8">八进制</option>
+            <option value="16">十六进制</option>
+        </select>
+
+        <button id="convert">转换</button>
+
+        <h2>结果:</h2>
+        <p id="result"></p>
+    </div>
+
+    <script src="script.js"></script>
+</body>
+
+</html>
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diff --git a/script.js b/script.js
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--- /dev/null
+++ b/script.js
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+document.getElementById('convert').addEventListener('click', function () {
+    const input = document.getElementById('input').value;
+    const fromBase = parseInt(document.getElementById('from-base').value);
+    const toBase = parseInt(document.getElementById('to-base').value);
+
+    // 将输入转换为十进制
+    let decimal;
+    try {
+        decimal = parseInt(input, fromBase);
+        if (isNaN(decimal)) throw new Error("无效输入");
+    } catch (error) {
+        document.getElementById('result').innerText = "输入无效，请检查!";
+        return;
+    }
+
+    // 将十进制转换为目标进制
+    let result;
+    switch (toBase) {
+        case 2:
+            result = decimal.toString(2);
+            break;
+        case 8:
+            result = decimal.toString(8);
+            break;
+        case 10:
+            result = decimal.toString(10);
+            break;
+        case 16:
+            result = decimal.toString(16).toUpperCase();
+            break;
+    }
+
+    document.getElementById('result').innerText = result;
+});
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diff --git a/styles.css b/styles.css
new file mode 100644
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--- /dev/null
+++ b/styles.css
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+body {
+    font-family: Arial, sans-serif;
+    background-color: #eef2f3;
+    margin: 0;
+    padding: 20px;
+}
+
+.container {
+    max-width: 400px;
+    margin: auto;
+    background: white;
+    padding: 20px;
+    border-radius: 10px;
+    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
+}
+
+h1 {
+    text-align: center;
+    color: #333;
+}
+
+h2 {
+    margin-top: 20px;
+    color: #555;
+}
+
+input,
+select,
+button {
+    width: 100%;
+    padding: 12px;
+    margin: 10px 0;
+    border: 1px solid #ccc;
+    border-radius: 5px;
+    font-size: 16px;
+}
+
+input:focus,
+select:focus,
+button:focus {
+    outline: none;
+    border-color: #007bff;
+}
+
+button {
+    background-color: #007bff;
+    color: white;
+    border: none;
+    cursor: pointer;
+    font-weight: bold;
+    transition: background-color 0.3s;
+}
+
+button:hover {
+    background-color: #0056b3;
+}
+
+#result {
+    padding: 10px;
+    background-color: #f8f9fa;
+    border: 1px solid #ddd;
+    border-radius: 5px;
+    text-align: center;
+    font-size: 18px;
+    color: #333;
+}
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