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

body {
    font-family: 'Microsoft YaHei', 'SimHei', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

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

/* 导航栏 */
header {
    background: linear-gradient(135deg, #4f46e5 0%, #b49cdd 100%);
    color: white;
    padding: 0.75rem 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    padding: 0;
}

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

.logo h1 {
    font-size: 1.8rem;
    margin-bottom: 0;
}

.logo p {
    font-size: 0.9rem;
    opacity: 0.9;
    margin-top: -5px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1.2rem;
}

.nav-menu a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.3s;
    padding: 0.5rem 1rem;
    border-radius: 5px;
}

.nav-menu a:hover,
.nav-menu a.active {
    background-color: rgba(255,255,255,0.2);
    opacity: 1;
}

/* 英雄区域 */
.hero {
    background: linear-gradient(135deg, #4f46e5 0%, #b49cdd 100%);
    color: white;
    padding: 60px 20px;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero-title {
    font-size: 2.5rem;
    margin-bottom: 0.8rem;
    font-weight: bold;
}

.hero-subtitle {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* 按钮样式 */
.btn {
    padding: 12px 30px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    transition: all 0.3s;
    display: inline-block;
}

.btn-primary {
    background-color: white;
    color: #4f46e5;
}

.btn-primary:hover {
    background-color: #f0f0f0;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.btn-secondary {
    background-color: transparent;
    color: white;
    border: 2px solid white;
}

.btn-secondary:hover {
    background-color: white;
    color: #4f46e5;
    transform: translateY(-2px);
}

/* 章节标题 */
.section-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 2rem;
    color: #1e293b;
    position: relative;
    padding-bottom: 0.8rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(135deg, #4f46e5 0%, #b49cdd 100%);
    border-radius: 2px;
}

/* 服务预览区域 */
.services-preview {
    padding: 50px 20px;
    background-color: white;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.service-card {
    background: white;
    padding: 1.8rem;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    text-align: center;
    border: 1px solid #e2e8f0;
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.service-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.service-image {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 1.2rem;
}

.service-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
    color: #1e293b;
}

.service-card p {
    color: #64748b;
    margin-bottom: 1.2rem;
    line-height: 1.6;
    font-size: 0.95rem;
}

.service-link {
    color: #4f46e5;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
    font-size: 0.95rem;
}

.service-link:hover {
    color: #b49cdd;
}

/* 优势区域 */
.advantages {
    padding: 50px 20px;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
}

.advantage-item {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 3px 12px rgba(79, 70, 229, 0.08);
    transition: transform 0.3s, box-shadow 0.3s;
    border: 1px solid #e2e8f0;
}

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

.advantage-image {
    width: 100%;
    height: 130px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 0.8rem;
}

.advantage-item h3 {
    color: #4f46e5;
    margin-bottom: 0.8rem;
    font-size: 1.2rem;
}

.advantage-item p {
    color: #64748b;
    line-height: 1.6;
    font-size: 0.9rem;
}

/* 内容页面样式 */
.content-page {
    padding: 30px 20px;
    background-color: white;
    min-height: 60vh;
}

.page-header {
    text-align: center;
    padding: 45px 20px;
    background: linear-gradient(135deg, #4f46e5 0%, #b49cdd 100%);
    color: white;
    margin-bottom: 30px;
}

.page-header h1 {
    font-size: 2rem;
    margin-bottom: 0.8rem;
}

.page-header p {
    font-size: 1rem;
    opacity: 0.95;
}

.content-section {
    max-width: 900px;
    margin: 0 auto 30px;
}

.content-section h2 {
    color: #4f46e5;
    font-size: 1.8rem;
    margin-bottom: 1.2rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #e2e8f0;
}

.content-section h3 {
    color: #333;
    font-size: 1.5rem;
    margin: 1.5rem 0 1rem;
}

.content-section p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 1rem;
    text-align: justify;
}

.content-section ul {
    margin-left: 2rem;
    margin-bottom: 1.5rem;
}

.content-section li {
    color: #666;
    line-height: 2;
    margin-bottom: 0.5rem;
}

.feature-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.feature-item {
    background: #f8fafc;
    padding: 1.2rem;
    border-radius: 8px;
    border-left: 4px solid #4f46e5;
}

.feature-item h4 {
    color: #4f46e5;
    margin-bottom: 0.5rem;
}

.feature-item p {
    color: #666;
    margin: 0;
}

/* 联系表单 */
.contact-form {
    max-width: 600px;
    margin: 0 auto;
    background: white;
    padding: 2.5rem;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #333;
    font-weight: 600;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 5px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #4f46e5;
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.contact-card {
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
}

.contact-card h3 {
    color: #4f46e5;
    margin-bottom: 1rem;
}

.contact-card p {
    color: #666;
    margin: 0.5rem 0;
}

/* 页脚 */
footer {
    background-color: #2c3e50;
    color: white;
    padding: 3rem 0 1rem;
    margin-top: 60px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: white;
}

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

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

.footer-section a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-section a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #34495e;
    color: #95a5a6;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        flex-direction: column;
        gap: 0.5rem;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .services-grid,
    .advantages-grid {
        grid-template-columns: 1fr;
    }

    .page-header h1 {
        font-size: 2rem;
    }

    .content-section h2 {
        font-size: 1.5rem;
    }
}