* 全局样式 */
body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

header {
    background-color: #222;
    color: white;
    padding: 1px;
    text-align: center;
}

header h1 {
    font-size: 3em;
    margin-bottom: 10px;
}

nav ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
}

nav ul li {
    display: inline;
    margin: 0 15px;
}

nav ul li a {
    color: white;
    text-decoration: none;
    font-size: 1.2em;
    transition: color 0.3s ease;
}

nav ul li a:hover {
    color: #ff9900;
}

.search-filter {
    padding: 20px;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.search-bar {
    margin-bottom: 15px;
}

.search-bar input {
    padding: 10px;
    width: 300px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

.search-bar button {
    padding: 10px 20px;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
}

.filter-options {
    margin-top: 15px;
}

.filter-options h3 {
    margin-top: 0;
}

.filter-options label {
    display: block;
    margin-bottom: 5px;
}

.hotel-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    padding: 20px;
}

.hotel-item {
    width: 300px;
    background-color: #fff;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    margin-bottom: 20px;
}

.hotel-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-top-left-radius: 5px;
    border-top-right-radius: 5px;
    border: 1px solid orange; /* 添加 1px 宽的蓝色边框 */
    border-radius: 5px;
}

.hotel-item:hover {
    border: 2px solid #ff5733; /* 鼠标悬停时的边框样式，宽度 2px，颜色橙色 */
}

.hotel-info {
    padding: 15px;
}

.hotel-info h2 {
    margin-top: 0;
}

.book-button {
    display: inline-block;
    background-color: #007bff;
    color:white;
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 5px;
}

.book-button:hover {
    background-color: #0056b3;
}

footer {
    background-color: #007bff;
    color: white;
    text-align: center;
    padding: 15px;
}

footer ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
}

footer ul li {
    display: inline;
    margin: 0 15px;
}

footer ul li a {
    color: white;
    text-decoration: none;
}

footer ul li a:hover {
    text-decoration: underline;
}

/* 回到顶部按钮样式 */
.back-to-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    display: none;
    background-color: #ff9900;
    color:black;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    text-align: center;
    line-height: 50px;
    font-size: 20px;
    text-decoration: none;
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.3);
    transition: background-color 0.3s ease;
}

.back-to-top:hover {
    background-color: #e68a00;
}