:root { --theme-color: #00BEBD; --text-dark: #1f2937; --text-light: #6b7280; --border-color: #e5e7eb; --secondary-color: #dc2626; /* 红色用于强调警示与效率 */}
        * { margin: 0; padding: 0; box-sizing: border-box; font-family: sans-serif; }
        body { background-color: #f9fafb; color: var(--text-dark); line-height: 1.7; }
        .container { width: 100%; max-width: 1184px; margin: 0 auto; padding: 0 15px; }
                a {
            text-decoration: none;
            color: inherit;
        }


        /* 顶部导航 Header */
        .header {
            background-color: #ffffff;
            border-bottom: 1px solid #e5e7eb;
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .header-wrap {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 80px;
            padding: 10px 20px;
        }

        .logo {
            font-size: 24px;
            font-weight: bold;
            color: var(--primary-color);
            display: flex;
            align-items: center;
        }

        .logo span {
            color: var(--secondary-color);
            margin-left: 5px;
        }

.nav-wrapper { display: flex; justify-content: space-between; align-items: center; padding: 10px 20px; }
#nav-menu ul { display: flex; list-style: none; }
#nav-menu ul li a { padding: 0 15px; text-decoration: none; color: #333; }
.menu-toggle { display: none; font-size: 24px; cursor: pointer; }

        .contact-btn {
            background-color: var(--secondary-color);
            color: white;
            padding: 10px 24px;
            border-radius: 4px;
            font-weight: bold;
            font-size: 18px;
        }
        /* 主体内容区 */
        .page-container { background: #fff; padding: 40px; margin: 30px auto; border-radius: 8px; box-shadow: 0 2px 10px rgba(0,0,0,0.05); }
        h1 { font-size: 28px; margin-bottom: 20px; color: var(--text-dark); }
        .content-body { font-size: 16px; color: #374151; }
        .content-body p { margin-bottom: 15px; }
        .content-body h3 { margin: 25px 0 15px; color: var(--theme-color); }
        
        /* 交互提醒 */
        .cta-box { background: #f0fdfd; border: 1px solid var(--theme-color); padding: 25px; text-align: center; margin: 30px 0; border-radius: 6px; }
        .btn-call { background: var(--theme-color); color: #fff; padding: 12px 30px; display: inline-block; border-radius: 4px; font-weight: bold; margin-top: 10px; }

        /* 页脚 Footer */
        .footer {
            background-color: var(--text-dark);
            color: #9ca3af;
            padding: 60px 0 20px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-title {
            color: white;
            font-size: 18px;
            margin-bottom: 20px;
        }

        .footer-info p {
            margin-bottom: 10px;
        }

        .copyright {
            text-align: center;
            border-top: 1px solid #374151;
            padding-top: 20px;
            font-size: 14px;
        }
@media (max-width: 768px) { 
        .page-container { padding: 20px; } 
        h1 { font-size: 22px; } 
        .contact-btn {display:none;}
        .menu-toggle { display: block; }
        #nav-menu { display: none; position: absolute; top: 60px; left: 0; width: 100%; background: #fff; border-bottom: 2px solid #00BEBD; }
        #nav-menu.active { display: block; }
        #nav-menu ul { flex-direction: column; padding: 0; }
        #nav-menu ul li { border-bottom: 1px solid #eee; padding: 15px; text-align: center; }
        .service-grid, .advantage-grid, .footer-grid {grid-template-columns: 1fr;}
    }

.side-float-nav { position: fixed; right: 10px; bottom: 20%; z-index: 999; }
.float-item { display: block; width: 50px; height: 50px; background: #00BEBD; color: #fff; text-align: center; line-height: 50px; margin-bottom: 10px; border-radius: 50%; text-decoration: none; font-size: 12px; box-shadow: 0 2px 5px rgba(0,0,0,0.2); }