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

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部样式 */
.header {
    background: linear-gradient(135deg, #1a2a6c, #b21f1f, #fdbb2d);
    color: white;
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo {
    font-size: 24px;
    font-weight: bold;
    text-decoration: none;
    color: white;
}

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

.nav ul li {
    margin-left: 20px;
}

.nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav ul li a:hover {
    color: #fdbb2d;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 10px 20px;
    background-color: #fdbb2d;
    color: #1a2a6c;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: all 0.3s ease;
}

.btn:hover {
    background-color: #f9a826;
    transform: translateY(-2px);
}

.btn-primary {
    background-color: #1a2a6c;
    color: white;
}

.btn-primary:hover {
    background-color: #0f1a47;
}

/* Banner样式 */
.banner {
    background: linear-gradient(135deg, #1a2a6c, #b21f1f, #fdbb2d);
    color: white;
    padding: 100px 0;
    text-align: center;
}

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

.banner p {
    font-size: 18px;
    margin-bottom: 30px;
}

/* 内容区域样式 */
.section {
    padding: 80px 0;
}

.section-title {
    font-size: 32px;
    text-align: center;
    margin-bottom: 50px;
    color: #1a2a6c;
}

/* 卡片样式 */
.card {
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: 30px;
    margin-bottom: 30px;
    transition: transform 0.3s ease;
}

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

.card-title {
    font-size: 24px;
    margin-bottom: 15px;
    color: #1a2a6c;
}

/* 服务区块 */
.services {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-item {
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: 30px;
    text-align: center;
    transition: transform 0.3s ease;
}

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

.service-icon {
    font-size: 48px;
    margin-bottom: 20px;
    color: #1a2a6c;
}

/* 新闻列表 */
.news-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.news-item {
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: 20px;
    transition: transform 0.3s ease;
}

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

.news-date {
    color: #666;
    font-size: 14px;
    margin-bottom: 10px;
}

.news-title {
    font-size: 18px;
    margin-bottom: 10px;
    color: #1a2a6c;
}

.news-excerpt {
    color: #666;
    margin-bottom: 15px;
}

/* 面包屑导航 */
.breadcrumb {
    padding: 20px 0;
    background-color: #f5f5f5;
    margin-bottom: 30px;
}

.breadcrumb a {
    color: #1a2a6c;
    text-decoration: none;
}

.breadcrumb a:hover {
    color: #b21f1f;
}

.breadcrumb span {
    margin: 0 10px;
    color: #666;
}

/* 联系表单 */
.contact-form {
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
}

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

/* 页脚样式 */
.footer {
    background: #1a2a6c;
    color: white;
    padding: 50px 0;
    margin-top: 50px;
}

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

.footer h3 {
    margin-bottom: 20px;
    color: #fdbb2d;
}

.footer ul {
    list-style: none;
}

.footer ul li {
    margin-bottom: 10px;
}

.footer ul li a {
    color: white;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer ul li a:hover {
    color: #fdbb2d;
}

.footer-bottom {
    background: #0f1a47;
    padding: 20px 0;
    text-align: center;
    margin-top: 30px;
}

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

    .nav ul {
        margin-top: 15px;
        flex-wrap: wrap;
    }

    .nav ul li {
        margin-left: 0;
        margin-right: 15px;
        margin-bottom: 10px;
    }

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

    .banner p {
        font-size: 16px;
    }

    .section {
        padding: 50px 0;
    }

    .section-title {
        font-size: 24px;
    }
}

@media (max-width: 480px) {
    .banner h1 {
        font-size: 28px;
    }

    .banner p {
        font-size: 14px;
    }

    .card {
        padding: 20px;
    }

    .service-item {
        padding: 20px;
    }

    .news-item {
        padding: 15px;
    }
}

/* 立即注册和马上下载按钮样式 */
.cta-buttons {
    display: flex;
    gap: 20px;
    margin-top: 30px;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-buttons .btn {
    font-size: 18px;
    padding: 15px 30px;
}

@media (max-width: 480px) {
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .cta-buttons .btn {
        width: 100%;
        text-align: center;
    }
}