.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    font-family: Arial, sans-serif;
}

.upload-section, .decrypt-section {
    margin: 20px 0;
    padding: 20px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

button {
    margin: 10px 0;
    padding: 10px 40px;
    background-color: #4CAF50;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    min-width: 120px;
}

button:hover {
    background-color: #45a049;
    transform: scale(1.05);
    transition: transform 0.2s;
}

#status {
    margin-top: 20px;
    padding: 10px;
    border-radius: 4px;
}

.password-section {
    text-align: center;
    margin: 50px auto;
    padding: 30px;
    border: 1px solid #ccc;
    border-radius: 5px;
    max-width: 400px;
}

.password-section input {
    padding: 10px;
    margin: 10px 0;
    width: 200px;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 16px;
}

.error-message {
    color: #ff4444;
    margin-top: 10px;
    font-size: 14px;
}

.success-message {
    color: #4CAF50;
    margin-top: 10px;
    font-size: 14px;
}

/* 移动端适配 */
@media screen and (max-width: 768px) {
    .container {
        padding: 10px;
        width: 100%;
        box-sizing: border-box;
    }

    .password-section {
        margin: 20px auto;
        padding: 15px;
        width: 90%;
    }

    .password-section input {
        width: 80%;
        max-width: 300px;
    }

    .upload-section, .decrypt-section {
        margin: 10px 0;
        padding: 15px;
    }

    button {
        width: 80%;
        max-width: 300px;
        padding: 12px 20px;
        font-size: 16px;
    }

    h1 {
        font-size: 24px;
        margin: 10px 0;
    }

    h2 {
        font-size: 18px;
    }

    #status {
        word-break: break-word;
        font-size: 14px;
    }

    /* 改进文件输入框样式 */
    input[type="file"] {
        width: 100%;
        max-width: 300px;
        margin: 10px auto;
    }
}

/* 添加文件上传按钮美化 */
.file-input-wrapper {
    position: relative;
    display: inline-block;
    margin: 10px 0;
}

.file-input-wrapper input[type="file"] {
    opacity: 0;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
}

.file-input-wrapper .file-input-button {
    display: inline-block;
    padding: 10px 20px;
    background-color: #f0f0f0;
    border: 1px solid #ccc;
    border-radius: 4px;
    cursor: pointer;
}

.file-input-wrapper:hover .file-input-button {
    background-color: #e0e0e0;
}