:root {
            --main-blue: #165DFF;
            --accent-orange: #165DFF;
            --text-dark: #333;
            --text-gray: #666;
            --bg-light: #f8f9fa;
            --border-color: #eeeeee;
        }
		a { text-decoration: none; color: inherit; transition: 0.3s; }
		/* --- 1. 头部与导航 (复用) --- */
        header { background: #fff; padding: 15px 0; }
        .header-flex { display: flex; justify-content: space-between; align-items: center; }
        .phone { font-size: 20px; color: var(--main-blue); font-weight: bold; }

       .main-nav { background: #fff; border-top: 1px solid #eee; position: sticky; top: 0; z-index: 1000; box-shadow: 0 2px 5px rgba(0,0,0,0.05); }
        .nav-list { display: flex; justify-content: space-between; list-style: none; }
        .nav-list > li { position: relative; }
        .nav-list > li > a { display: block; padding: 15px 10px; color: #333; font-size: 16px; text-decoration: none; transition: 0.3s; }
        .nav-list > li > a:hover, .nav-list > li > a.active { color: var(--accent-orange); border-bottom: 2px solid var(--accent-orange); }

        /* 下拉菜单 */
        .dropdown:hover .submenu { display: block; }
        .submenu { 
            display: none; position: absolute; top: 100%; left: 0; background: #fff; 
            min-width: 160px; box-shadow: 0 5px 15px rgba(0,0,0,0.1); border-top: 2px solid var(--accent-orange); list-style: none; 
        }
        .submenu li a { display: block; padding: 10px 20px; color: #666; font-size: 14px; text-decoration: none; }
        .submenu li a:hover { background: #e8f3ff; color: var(--accent-orange); }
		
		

        /* 基础复位 */
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { font-family: "PingFang SC", "Microsoft YaHei", sans-serif; color: var(--text-dark); line-height: 1.8; background: #fff; }
        .container { max-width: 1200px; margin: 0 auto; padding: 0 15px; }
        img { max-width: 100%; height: auto; display: block; }
        a { text-decoration: none; transition: 0.3s; }

        /* --- 1. 面包屑导航 --- */
        .breadcrumb { background: var(--bg-light); padding: 15px 0; font-size: 14px; color: #888; border-bottom: 1px solid var(--border-color); }
        .breadcrumb a { color: #666; }
        .breadcrumb a:hover { color: var(--main-blue); }
        .breadcrumb span { margin: 0 8px; }

        /* --- 2. 页面主布局 --- */
        .about-layout { padding: 50px 0; display: flex; gap: 40px; }
        
        /* 左侧内容区 */
        .content-main { flex: 2.5; }
        
        /* 企业简介部分 */
        .intro-section h1 { font-size: 30px; color: var(--main-blue); margin-bottom: 25px; position: relative; padding-bottom: 10px; }
        .intro-section h1::after { content: ''; position: absolute; left: 0; bottom: 0; width: 60px; height: 3px; background: var(--accent-orange); }
        .intro-text { font-size: 16px; color: #444; margin-bottom: 40px; }
        .intro-text p { margin-bottom: 20px; text-indent: 2em; text-align: justify; }

        /* 发展历程时间轴 (新增) */
        .history-section { margin-top: 50px; }
        .history-title { font-size: 22px; color: var(--main-blue); margin-bottom: 30px; border-left: 5px solid var(--accent-orange); padding-left: 15px; }
        .timeline { position: relative; padding-left: 30px; list-style: none; }
        .timeline::before { content: ''; position: absolute; left: 0; top: 0; width: 2px; height: 100%; background: #eee; }
        .timeline-item { position: relative; margin-bottom: 30px; }
        .timeline-item::before { content: ''; position: absolute; left: -34px; top: 8px; width: 10px; height: 10px; border-radius: 50%; background: var(--accent-orange); border: 2px solid #fff; box-shadow: 0 0 0 3px rgba(255,106,0,0.2); }
        .timeline-year { font-weight: bold; color: var(--main-blue); font-size: 18px; margin-bottom: 5px; }
        .timeline-desc { color: #666; font-size: 14px; }

        /* --- 3. 右侧侧边栏 --- */
        .sidebar { flex: 1; }
        .sidebar-widget { border: 1px solid var(--border-color); padding: 25px; margin-bottom: 30px; border-radius: 4px; }
        .widget-title { font-size: 18px; color: var(--main-blue); margin-bottom: 20px; position: relative; font-weight: bold; }
        .widget-title::after { content: ''; position: absolute; left: 0; bottom: -8px; width: 30px; height: 2px; background: var(--accent-orange); }

        /* 二维码定制方案板块 (修改) */
        .side-qr-box { background: #fff; border: 2px solid var(--main-blue); padding: 20px; border-radius: 8px; text-align: center; }
        .side-qr-box h3 { color: var(--main-blue); font-size: 18px; margin-bottom: 10px; }
        .side-qr-box p { font-size: 14px; color: #666; margin-bottom: 15px; }
        .qr-code { width: 160px; height: 160px; margin: 0 auto 15px; background: #f9f9f9; padding: 10px; border: 1px solid #eee; }
        .qr-code img { width: 100%; height: 100%; }
        .qr-tip { font-size: 13px; color: var(--accent-orange); font-weight: bold; }
		
		/* --- 实景图库样式 --- */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr); /* 电脑端一行两个 */
    gap: 15px;
}
.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 4px;
}
.gallery-item img {
    width: 100%;
    height: auto;
    object-fit: cover;
    transition: 0.5s;
}



.gallery-item:hover img {
    transform: scale(1.05);
}
.img-caption {
    position: absolute;
    bottom: 0;
    width: 100%;
    background: rgba(0, 74, 153, 0.8);
    color: #fff;
    font-size: 13px;
    text-align: center;
    padding: 5px 0;
}

/* --- Logo 墙样式 --- */
.logo-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr); /* 电脑端一行六个 */
    gap: 20px;
    align-items: center;
}
.logo-item {
    
    filter: grayscale(0%) !important; /* 取消灰色，显示彩色 */
    opacity: 1 !important;
    
    
}
.logo-item:hover {
    filter: grayscale(0%);
    border-color: var(--accent-orange);
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
}
.logo-item img {
    max-height: 50px;
    width: auto;
     
}

	  /* --- 底部 (复刻截图样式) --- */
		
    footer { background-color: #1a1a1a; color: #fff; padding: 60px 0 20px; }
        .footer-container { display: flex; justify-content: space-between; gap: 40px; }
        .footer-nav-grid { display: grid; grid-template-columns: repeat(4, auto); gap: 12px 30px; margin-top: 20px; }
        .footer-nav-grid a { color: #ccc; font-size: 14px; }
        .footer-center .qr-code-box { background: #fff; padding: 5px; width: 110px; margin: 0 auto; }
        .footer-right { text-align: right; }
        .contact-phone { font-size: 28px; font-weight: bold; color: #fff; }
        .footer-bottom { margin-top: 50px; padding-top: 20px; border-top: 1px solid #2d2d2d; color: #666; font-size: 12px; text-align: center; }

    @media (max-width: 992px) {
            .contact-layout { flex-direction: column; }
            .sidebar { width: 100%; order: -1; }
            .contact-grid { grid-template-columns: 1fr; }
            .footer-container { flex-direction: column; text-align: center; }
            .footer-right { text-align: center; }
            .footer-nav-grid { justify-content: center; }
        }

		
/* --- 响应式调整 --- */
@media (max-width: 768px) {
    .gallery-grid { grid-template-columns: 1fr; } /* 手机端图片一行一个 */
    .logo-grid { grid-template-columns: repeat(3, 1fr); } /* 手机端Logo一行三个 */
}



        /* --- 响应式适配 --- */
        @media (max-width: 992px) {
            .about-layout { flex-direction: column; }
            .sidebar { order: 2; }
            .content-main { order: 1; }
        }
@media (max-width: 768px) {
            .nav-list { overflow-x: auto; white-space: nowrap; justify-content: flex-start; }
            .nav-list > li > a { padding: 15px 15px; font-size: 14px; }
         .header-flex {
        flex-direction: column;
        gap: 10px;
    }
            
        }