/* 全局样式 */
body {
    font-family: 'Arial', sans-serif;
    color: #333;
    line-height: 1.6;
    background-color: #f4f4f4;
    margin: 0;
    padding: 0;
}

h1, h2, h3 {
    color: #444;
    margin-bottom: 10px;
}

p {
    margin-bottom: 20px;
}

/* 导航栏样式 */
nav {
    background-color: #333;
    color: #fff;
    padding: 10px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

nav .logo img {
    height: 40px;
}

nav .menu {
    list-style: none;
    display: flex;
    gap: 20px;
}

nav .menu li {
    display: inline;
}

nav .menu li a {
    color: #fff;
    text-decoration: none;
    padding: 10px 15px;
    border-radius: 5px;
}

nav .menu li a:hover {
    background-color: #444;
}

/* 英雄横幅样式 */
#hero {
    background: url('../images/about_01.png') no-repeat center center/cover;
    height: 600px;
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
}

.hero-content {
    background-color: rgba(0, 0, 0, 0.6);
    padding: 20px;
    border-radius: 10px;
}

.cta-btn {
    display: inline-block;
    padding: 10px 20px;
    background-color: #ff5722;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    margin-top: 20px;
}

.cta-btn:hover {
    background-color: #e64a19;
}

/* 页面容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 80px 20px; /* 留出顶部导航栏的空间 */
}

/* 栅格布局样式 */
.services-grid, .testimonials-grid {
    display: flex;
    gap: 20px;
}

.service-item, .testimonial-item {
    flex: 1;
    background-color: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: center;
}

.service-item img {
    width: 30%;
    border-radius: 10px;
    margin-bottom: 15px;
}

/* 页脚样式 */
footer {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 20px 0;
}

footer a {
    color: #ff5722;
    text-decoration: none;
}

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