/* 全局样式 */
body {
    font-family: 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
    margin: 0;
    padding: 0;
}

/* 头部样式 */
header {
    background: linear-gradient(to right, #1a1a1a, #333);
    color: #fff;
    padding: 1rem 0;
    text-align: center;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

header h1 {
    margin: 0;
    font-size: 2.5rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

/* 导航菜单 */
nav ul {
    list-style: none;
    padding: 0;
    display: flex;
    justify-content: center;
    margin: 1rem 0 0;
}

nav li {
    margin: 0 1rem;
}

nav a {
    color: #fff;
    text-decoration: none;
    font-weight: bold;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background-color 0.3s;
}

nav a:hover {
    background-color: rgba(255,255,255,0.2);
}

/* 轮播图样式 */
.slider {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    overflow: hidden;
}

.slides {
    display: flex;
    transition: transform 0.5s ease;
}

.slides img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.slider button {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0,0,0,0.5);
    color: white;
    border: none;
    padding: 1rem;
    cursor: pointer;
    font-size: 1.5rem;
    z-index: 10;
}

.slider .prev {
    left: 1rem;
}

.slider .next {
    right: 1rem;
}

/* 主要内容区域 */
main {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
}

section {
    background: #fff;
    padding: 2rem;
    margin-bottom: 2rem;
    border-radius: 5px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

h2 {
    color: #333;
    border-bottom: 2px solid #e67e22;
    padding-bottom: 0.5rem;
    margin-top: 0;
}

/* 表单样式 */
form {
    display: grid;
    gap: 1rem;
    max-width: 500px;
    margin: 0 auto;
}

input, textarea {
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-family: inherit;
}

button {
    background: #e67e22;
    color: white;
    border: none;
    padding: 0.7rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.3s;
}

button:hover {
    background: #d35400;
}

/* 页脚样式 */
footer {
    text-align: center;
    padding: 1rem;
    background: #333;
    color: #fff;
    margin-top: 2rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    nav ul {
        flex-direction: column;
        align-items: center;
    }
    
    nav li {
        margin: 0.5rem 0;
    }
}