: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; }
        /* 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. 头部与导航 --- */
        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); }

        .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); }

        /* --- 2. 面包屑 --- */
        .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 span { margin: 0 8px; }

        /* --- 3. 主布局 (关键修改：确保 Flex 只包裹留言和侧边栏) --- */
        .contact-wrapper { padding: 60px 0; }
        .contact-layout { display: flex; gap: 40px; align-items: flex-start; }
        
        .contact-main { flex: 1; min-width: 0; } /* 防止内容溢出 */
        .sidebar { width: 320px; flex-shrink: 0; }
        .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); }
        
    
        .section-title { font-size: 28px; color: var(--main-blue); margin-bottom: 30px; position: relative; padding-bottom: 10px; }
        .section-title::after { content: ''; position: absolute; left: 0; bottom: 0; width: 50px; height: 3px; background: var(--accent-orange); }

        .contact-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; margin-bottom: 40px; }
        .contact-card { background: var(--bg-light); padding: 20px; border-radius: 4px; border-left: 4px solid var(--main-blue); }
        .contact-card h4 { color: var(--main-blue); font-size: 16px; margin-bottom: 8px; }
        .contact-card p { color: #555; font-size: 14px; }

        .message-form { background: #fff; padding: 30px; border: 1px solid var(--border-color); border-radius: 8px; box-shadow: 0 5px 15px rgba(0,0,0,0.03); }
        .form-group { margin-bottom: 20px; }
        .form-group label { display: block; margin-bottom: 8px; font-size: 14px; font-weight: bold; }
        .form-control { width: 100%; padding: 12px; border: 1px solid #ddd; border-radius: 4px; outline: none; }
        .form-control:focus { border-color: var(--main-blue); }
        textarea.form-control { height: 120px; resize: vertical; }
        .btn-submit { background: var(--main-blue); color: #fff; border: none; padding: 15px 40px; border-radius: 4px; cursor: pointer; font-size: 16px; font-weight: bold; width: 100%; }

        .qr-widget { background: #fff; border: 2px solid var(--main-blue); padding: 30px; text-align: center; border-radius: 8px; }
        .qr-image { width: 180px; height: 180px; margin: 0 auto 15px; border: 1px solid #eee; padding: 10px; }

        /* --- 4. 地图区域样式 --- */
        .map-container { margin: 40px 0 60px; }
        .map-box { width: 100%; height: 450px; border-top: 4px solid var(--main-blue); position: relative; overflow: hidden; }
        .map-box iframe { width: 100%; height: 100%; border: 0; }

        /* --- 5. 底部 --- */
        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; }

        /* 响应式调整 */
        @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; }
        }
@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;
    }
         .contact-wrapper{
            padding: 0 15px;
         }
            
        }