/* 通用重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    background-color: #f4f4f4;
    color: #333;
    line-height: 1.6;
}

/* 容器：使内容居中显示 */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 页眉 */
header {
    background-color: #457289;
    color: white;
    padding: 20px 0;
    text-align: center;
}

header h1 {
    font-size: 36px;
    font-weight: 700;
    text-align: center;
}

/* 导航栏 */
nav {
    background-color: #754545;
    padding: 10px 0;
}

nav ul {
    list-style-type: none;
    display: flex;
    justify-content: center;
    align-items: center;
}

nav ul li {
    margin: 0 15px;
}

nav ul li a {
    color: white;
    text-decoration: none;
    font-size: 18px;
    padding: 8px 0px;
    transition: background-color 0.3s ease;
}

nav ul li a:hover {
    background-color: #457289;
    border-radius: 5px;
}

/* 主内容区域 */
main {
    padding: 10px 0;
    background-color: #ffffff;
    text-align: center;
}

h2 {
    font-size: 32px;
    color: #457289;
    margin-bottom: 5px;
    text-align: center;
}

p {
    font-size: 18px;
    color: #555;
    text-align: center;
}

p img {
        max-width: 100%; /* 保证图片自适应宽度 */
    }
    



/* 页脚 */
footer {
    background-color: #343a40;
    color: white;
    text-align: center;
    padding: 20px 0;
    margin-top: 50px;
}



.logine {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    color: #333;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}
/* 登录容器 */
.login-container {
    background-color: #fff;
    padding: 40px 30px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    max-width: 400px;
    width: 100%;
    text-align: center;
}

/* 标题 */
.login-container h1 {
    font-size: 36px;
    color: #457289;
    margin-bottom: 20px;
}

/* 表单组 */
.form-group {
    margin-bottom: 20px;
    text-align: left;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 5px;
    font-size: 16px;
}

.form-group input {
    width: 100%;
    padding: 12px;
    font-size: 16px;
    border: 1px solid #ddd;
    border-radius: 5px;
    margin-top: 5px;
}

.form-group input:focus {
    border-color: #457289;
    outline: none;
}

/* 登录按钮 */
.btn-login {
    width: 100%;
    padding: 12px;
    background-color: #457289;
    color: white;
    border: none;
    font-size: 18px;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.btn-login:hover {
    background-color: #0056b3;
}

/* 注册链接 */
.register-link {
    margin-top: 20px;
    font-size: 14px;
}

.register-link a {
    color: #457289;
    text-decoration: none;
}

.register-link a:hover {
    text-decoration: underline;
}



/* 响应式设计：在手机设备上调整布局 */
@media (max-width: 480px) {
    .login-container {
        padding: 30px 20px;
    }

    .login-container h1 {
        font-size: 28px;
    }

    .form-group label {
        font-size: 14px;
    }

    .form-group input {
        font-size: 14px;
    }

    .btn-login {
        font-size: 16px;
    }

    .register-link {
        font-size: 12px;
    }
}