html {
    height: 100%;
    background-color: white;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    position: relative;
}

p {
    margin: 0;
    padding: 0;
}

.connect {
    padding: 5px;
    position: fixed;
    top: 50%;
    right: 20px;
    width: 100px;
    background-color: white;
    box-shadow: 2px 4px 4px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    border-radius: 10px;
    text-align: center;
    font-size: 12px;
    color: #666;
}

.container {
    max-width: 750px;
    margin: 0 auto;
    padding: 0;
    box-shadow: 0px 0px 8px rgba(0, 0, 0, 0.1);
}

img {
    display: block;
    width: 100%;
}

.btnbox {
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.btn {
    text-align: center;
    width: 300px;
    height: 50px;
    line-height: 50px;
    box-shadow: 5px 5px 5px rgba(0, 0, 0, 0.1);
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s ease;
    margin-bottom: 30px;
    text-decoration: none;
}

.toast {
    position: fixed;
    top: 30%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: rgba(0, 0, 0, 0.9);
    color: white;
    padding: 15px 20px;
    border-radius: 4px;
    display: none;
}