/* 重置默认样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
}

/* 导航栏样式 */
.header {
    position: fixed;
    width: 100%;
    top: 0;
    background: white;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.2rem 5%;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 65px;
    width: auto;
    margin: 10px 0;
}

.nav-links a {
    text-decoration: none;
    color: #333;
    margin: 0 1rem;
    padding: 0.5rem;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: #007bff;
}

.search-box {
    display: flex;
    align-items: center;
}

.search-box input {
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    margin-right: 0.5rem;
}

.search-box button {
    background: none;
    border: none;
    cursor: pointer;
}

/* 英雄区域样式 */
.hero {
    height: 100vh;
    background: url('../images/tupian.svg') center/cover;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2rem;
    background: #007bff;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s;
}

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

/* 核心服务样式 */
.core-services {
    padding: 5rem 0;
    background: #f8f9fa;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2.5rem;
}

.services-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.service-card {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.service-card i {
    font-size: 3rem;
    color: #007bff;
    margin-bottom: 1rem;
}

/* 页脚样式 */
.footer {
    background: #333;
    color: white;
    padding: 4rem 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-section h3 {
    margin-bottom: 1rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: white;
    text-decoration: none;
}

.social-links a {
    margin-right: 1rem;
    font-size: 1.5rem;
}

.footer-bottom {
    text-align: center;
    padding: 1rem 0;
    margin-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.beian-info {
    margin-top: 10px;
    font-size: 0.9rem;
}

.beian-info p {
    margin: 5px 0;
}

.beian-info img {
    height: 16px;
    margin-right: 5px;
    vertical-align: middle;
}

.beian-info a {
    color: var(--white);
    text-decoration: none;
    transition: opacity 0.3s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.beian-info a:hover {
    opacity: 0.8;
    text-decoration: underline;
}

.footer-bottom a {
    color: var(--white);
    text-decoration: none;
    transition: opacity 0.3s;
}

.footer-bottom a:hover {
    opacity: 0.8;
    text-decoration: underline;
}

/* 响应式设计中的logo */
@media (max-width: 768px) {
    .logo img {
        height: 55px;
    }
}