/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏 */
.navbar {
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: #1a73e8;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: #1a73e8;
}

/* 首页横幅 */
.hero {
    position: relative;
    height: 100vh;
    overflow: hidden;
    display: flex;
    align-items: center;
    text-align: center;
    color: white;
    padding-top: 80px;
}

.carousel {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.carousel-inner {
    width: 100%;
    height: 100%;
}

.carousel-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
}

.carousel-item.active {
    opacity: 1;
}

.carousel-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero .container {
    position: relative;
    z-index: 1;
    background: rgba(0, 0, 0, 0.5);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    color: white;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
}

.hero p {
    font-size: 24px;
    margin-bottom: 30px;
}

.cta-button {
    display: inline-block;
    padding: 15px 30px;
    background-color: #1a73e8;
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s;
}

.cta-button:hover {
    background-color: #1557b0;
}

/* 各个部分的通用样式 */
section {
    padding: 80px 0;
}

section h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 40px;
}

/* 关于我们 */
.about {
    background-color: #f8f9fa;
}

.about p {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    font-size: 18px;
}

/* 服务项目 */
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.service-item {
    text-align: center;
    padding: 30px;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.service-item:hover {
    transform: translateY(-10px);
}

.service-item i {
    font-size: 40px;
    color: #1a73e8;
    margin-bottom: 20px;
}

/* 核心优势 */
.advantages {
    background-color: #f8f9fa;
}

.advantage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.advantage-item {
    text-align: center;
    padding: 30px;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

/* 联系我们 */
.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.contact-item {
    text-align: center;
    padding: 20px;
}

.contact-item i {
    font-size: 30px;
    color: #1a73e8;
    margin-bottom: 15px;
}

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

/* 图片画廊 */
.image-gallery {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 40px;
    padding: 20px 0;
    justify-content: center;
}

.gallery-item {
    flex: 0 0 calc(33.333% - 14px);
    max-width: calc(33.333% - 14px);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.gallery-item:hover {
    transform: translateY(-5px);
}

.gallery-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        text-align: center;
    }

    .nav-links {
        margin-top: 20px;
        flex-direction: column;
    }

    .nav-links li {
        margin: 10px 0;
    }

    .hero h1 {
        font-size: 36px;
    }

    .hero p {
        font-size: 20px;
    }

    .gallery-item {
        flex: 0 0 calc(50% - 10px);
        max-width: calc(50% - 10px);
    }
}

@media (max-width: 480px) {
    .gallery-item {
        flex: 0 0 100%;
        max-width: 100%;
    }
}