* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
    line-height: 1.8;
    color: #333;
    background: #fff;
}

/* 顶部导航 */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: #fff;
    border-bottom: 1px solid #e5e5e5;
    z-index: 1000;
}

.nav-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
}

.logo {
    font-size: 20px;
    font-weight: 700;
    color: #1a3a6c;
    text-decoration: none;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 4px;
    flex-wrap: wrap;
}

nav ul li a {
    text-decoration: none;
    color: #333;
    padding: 8px 14px;
    font-size: 14px;
    transition: color 0.2s;
}

nav ul li a:hover,
nav ul li a.active {
    color: #1a3a6c;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.menu-toggle span {
    width: 22px;
    height: 2px;
    background: #1a3a6c;
}

/* Hero */
.hero {
    margin-top: 60px;
    padding: 80px 24px;
    text-align: center;
    background: #1a3a6c;
    color: #fff;
}

.hero h1 {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: 4px;
}

.hero p {
    font-size: 16px;
    opacity: 0.9;
    letter-spacing: 2px;
}

/* 通用 section */
section {
    max-width: 900px;
    margin: 0 auto;
    padding: 60px 24px;
    border-bottom: 1px solid #f0f0f0;
}

.section-num {
    font-size: 13px;
    color: #999;
    letter-spacing: 3px;
    margin-bottom: 8px;
}

.section-title {
    font-size: 28px;
    font-weight: 700;
    color: #1a3a6c;
    margin-bottom: 24px;
    padding-bottom: 12px;
    border-bottom: 2px solid #1a3a6c;
}

.section-content {
    font-size: 15px;
    color: #444;
}

.section-content p {
    margin-bottom: 16px;
    text-align: justify;
}

.section-content h3 {
    font-size: 18px;
    color: #1a3a6c;
    margin: 24px 0 12px;
    font-weight: 600;
}

.section-content ul {
    margin: 12px 0 16px 24px;
}

.section-content ul li {
    margin-bottom: 8px;
}

.section-content strong {
    color: #1a3a6c;
}

/* 发展历程 */
.history-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.history-list li {
    padding: 16px 0;
    border-bottom: 1px dashed #e5e5e5;
}

.history-list li:last-child {
    border-bottom: none;
}

.history-year {
    display: inline-block;
    min-width: 160px;
    font-weight: 700;
    color: #1a3a6c;
}

/* 资质列表 */
.honor-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.honor-list li {
    padding: 8px 0 8px 20px;
    position: relative;
    font-size: 15px;
}

.honor-list li::before {
    content: '·';
    position: absolute;
    left: 6px;
    color: #1a3a6c;
    font-weight: 700;
}

/* 子公司列表 */
.sub-list {
    list-style: none;
    margin: 12px 0;
    padding: 0;
}

.sub-list li {
    padding: 6px 0 6px 20px;
    position: relative;
    font-size: 15px;
}

.sub-list li::before {
    content: '·';
    position: absolute;
    left: 6px;
    color: #1a3a6c;
    font-weight: 700;
}

/* 办公实景图片 */
.scenes-images {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-top: 12px;
}

.scenes-images figure {
    margin: 0;
    text-align: center;
}

.scenes-images img {
    max-width: 100%;
    height: auto;
    border: 1px solid #e5e5e5;
    border-radius: 4px;
    display: block;
    margin: 0 auto;
}

.scenes-images figcaption {
    margin-top: 10px;
    font-size: 14px;
    color: #666;
}

/* 首页板块入口 */
.module-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-top: 20px;
}

.module-card {
    display: block;
    padding: 24px 20px;
    border: 1px solid #e5e5e5;
    border-radius: 4px;
    text-decoration: none;
    color: #333;
    transition: all 0.2s;
}

.module-card:hover {
    border-color: #1a3a6c;
    background: #fafbfc;
}

.module-card .module-num {
    font-size: 13px;
    color: #999;
    letter-spacing: 2px;
}

.module-card .module-name {
    font-size: 18px;
    font-weight: 600;
    color: #1a3a6c;
    margin-top: 6px;
}

.module-card .module-desc {
    font-size: 13px;
    color: #666;
    margin-top: 8px;
    line-height: 1.6;
}

/* 页脚 */
footer {
    background: #1a1a2e;
    color: #b8c2cc;
    padding: 40px 24px 20px;
    text-align: center;
}

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

.footer-content p {
    font-size: 14px;
    margin-bottom: 8px;
}

.footer-bottom {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 13px;
    color: #8a96a3;
}
.icp{
    color: #8a96a3;
}
/* 响应式 */
@media (max-width: 768px) {
    nav ul {
        display: none;
        position: fixed;
        top: 60px;
        left: 0;
        width: 100%;
        background: #fff;
        flex-direction: column;
        padding: 12px 24px;
        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    }

    nav ul.active {
        display: flex;
    }

    .menu-toggle {
        display: flex;
    }

    .hero h1 {
        font-size: 26px;
    }

    .section-title {
        font-size: 22px;
    }

    .history-year {
        display: block;
        min-width: auto;
        margin-bottom: 4px;
    }

    .module-grid {
        grid-template-columns: 1fr;
    }
}