body, html {
    height: 100%;
    margin: 0;
    background-color: #f4f4f4; /* 轻灰背景 */
    font-family: 'Open Sans', sans-serif;
}
.container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
}
.gr-box {
    background-color: #ffffff;
    border: none;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    padding: 40px;
    width: 90%;
    max-width: 600px;
    margin-bottom: 20px;
}
.gr-button {
    background-color: #007bff;
    color: rgb(28, 3, 3);
    border: none;
    border-radius: 5px;
    padding: 10px 20px;
    font-size: 18px;
    cursor: pointer;
    transition: background-color 0.3s;
    text-transform: uppercase;
}
.gr-button:hover {
    background-color: #0056b3;
}
.gr-textbox {
    width: 100%;
    padding: 10px;
    font-size: 16px;
    border: 1px solid #ced4da;
    border-radius: 5px;
    margin-bottom: 20px;
}
.gr-textbox-label {
    font-size: 14px;
    color: #6c757d;
    margin-bottom: 5px;
    display: block;
}
.output-group {
    display: flex;
    flex-direction: column;
    align-items: stretch;
}
.output-text {
    margin-bottom: 20px;
}
.related-urls {
    font-size: 14px;
    color: #007bff;
}
.related-urls a {
    text-decoration: none;
    color: #007bff;
}
.related-urls a:hover {
    text-decoration: underline;
}
.gr-button {
    background-color: #007bff;
    color: #007bff;
    border: none;
    border-radius: 5px;
    padding: 10px 20px;
    font-size: 18px;
    cursor: pointer;
    transition: background-color 0.3s;
    text-transform: uppercase;
}