body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-image: url('./bj001.jpg'); /* 更改此路径 */
    background-size: cover; /* 使背景图片覆盖整个屏幕 */
    background-position: center; /* 背景图片居中 */
    color: #333;
    margin: 0;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100vh; /* 确保背景覆盖整个视口高度 */
}
header {
    background-image: url('./R002.jpg'); /* 更改此路径 */
    background-size: cover; /* 使背景图片覆盖整个屏幕 */
    background-position: center; /* 背景图片居中 */
    max-width: 800px;
    width: 100%;
    text-align: center;
    padding: 30px;
    background-color: #007bff;
    color: white;
    border-radius: 8px;
    margin-bottom: 20px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}
/* Double Layer Font Style */
.double-layer {
    position: relative;
    font-size: 4em; /* Adjust size as needed */
    color: #fff; /* Foreground color */
    text-shadow: 
        2px 2px 0 rgba(0, 0, 0, 0.5), /* Shadow for depth */
        4px 4px 0 rgba(0, 0, 0, 0.3); /* Second layer shadow */
}

/* Optional: Add a background for contrast */
h1 {
    padding: 10px; /* Padding around the text */
    display: inline-block; /* Fit background to text size */
    border-radius: 10px; /* Rounded corners */
    margin: 0;
    font-size: 3em;
}

h2 {
    margin: 0;
    font-size: 2em;
}
p {
    font-size: 1.3em; /* 或使用其他单位，如 px、rem 等 */
    background-color: rgba(255, 255, 255, 0.3); /* 白色背景，80% 不透明度 */
    padding: 10px; /* 内边距，增加可读性 */
    border-radius: 10px; /* 圆角效果（可选） */
}
.container {
    max-width: 800px;
    width: 100%;
    background: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    border-radius: 10px; /* 圆角效果（可选） */
}
input[type="text"] {
    width: calc(100% - 30px);
    padding: 15px;
    border: 1px solid #ccc;
    border-radius: 5px;
    margin-bottom: 22px;
    font-size: 16px;
    border-radius: 10px; /* 圆角效果（可选） */
}
button {
    padding: 12px 20px;
    background-color: #449bfd;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s ease;
    border-radius: 5px; /* 圆角效果（可选） */
}
button:hover {
    background-color: #661ae0;
}
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 10;
    top: 10;
    width: 100%;
    height: 100%;
    overflow: auto;
    font-size: 16px;
    background-color: rgb(0,0,0);
    background-color: rgba(0,0,0,0.4);
    padding-top: 80px;
    border-radius: 10px; /* 圆角效果（可选） */
}
.modal-content {
    background-color: #fefefe;
    margin: 20% auto;
    padding: 20px;
    border: 3px solid #949494;
    width: 50%;
    max-width: 500px;
    border-radius: 12px;
}
.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
}
.close:hover,
.close:focus {
    color: black;
    text-decoration: none;
    cursor: pointer;
}
.footer {
    text-align: center;
    margin-top: 20px;
    font-size: 14px;
    color: #555;
}
.intro {
    margin: 20px 0;
    padding: 15px;
    background-color: #e9ecef;
    border-radius: 4px;
    border-radius: 10px; /* 圆角效果（可选） */
}
@media (max-width: 600px) {
    body {
        padding: 10px;
    }
    header {
        padding: 15px;
    }
    .container {
        padding: 20px;
    }
    input[type="text"], button {
        font-size: 14px;
    }
}