:root {
            --primary: rgb(24, 119, 242);
            --primary-dark: rgb(18, 90, 184);
            --primary-light: rgba(24, 119, 242, 0.08);
            --text-main: #1a1a1a;
            --text-sub: #666666;
            --bg-body: #f7f9fc;
            --border-color: #eaeaea;
            --radius: 12px;
            --shadow: 0 4px 20px rgba(0,0,0,0.05);
        }
        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { font-family: -apple-system, sans-serif; background: var(--bg-body); color: var(--text-main); line-height: 1.6; }
        a { text-decoration: none; color: inherit; transition: 0.3s; }
        ul { list-style: none; }
        img { max-width: 100%; display: block; }
        
        
        .header { background: rgba(255, 255, 255, 0.95); backdrop-filter: blur(10px); position: fixed; top: 0; left: 0; right: 0; z-index: 1000; box-shadow: 0 2px 10px rgba(0,0,0,0.05); }
        .header-container { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; height: 70px; padding: 0 20px; }
        .logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; }
        .logo img { display: block; height: 36px; width: auto; max-width: 150px; object-fit: contain; flex-shrink: 0; }
        .logo span { display: inline-block; font-size: 22px; font-weight: 800; color: var(--primary); white-space: nowrap; }
        .nav-desktop { display: flex; gap: 30px; align-items: center; }
        .nav-desktop a { font-size: 16px; font-weight: 500; position: relative; padding: 5px 0; }
        .nav-desktop a:hover { color: var(--primary); }
        .nav-actions { display: flex; align-items: center; gap: 15px; }
        .btn-app { background: var(--primary); color: #fff; padding: 8px 20px; border-radius: 20px; font-weight: 600; font-size: 14px; }
        .menu-toggle { display: none; font-size: 24px; cursor: pointer; }
        
        .mobile-mask { position: fixed; inset: 0; background: rgba(0,0,0,0.5); z-index: 1001; opacity: 0; visibility: hidden; }
        .mobile-mask.active { opacity: 1; visibility: visible; }
        .mobile-drawer { position: fixed; top: 0; left: -300px; bottom: 0; width: 280px; background: #fff; z-index: 1002; transition: left 0.3s; display: flex; flex-direction: column; }
        .mobile-drawer.active { left: 0; }
        .drawer-header { padding: 20px; border-bottom: 1px solid var(--border-color); display: flex; justify-content: space-between; }
        .drawer-close { font-size: 24px; cursor: pointer; color: var(--text-sub); }
        .drawer-nav { padding: 20px; flex: 1; overflow-y: auto; }
        .drawer-nav a { display: block; padding: 15px 0; border-bottom: 1px dashed var(--border-color); }

        
        .page-banner { margin-top: 70px; background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%); padding: 80px 20px; text-align: center; color: #fff; }
        .page-banner h1 { font-size: 40px; font-weight: 800; margin-bottom: 15px; }
        .page-banner p { font-size: 18px; opacity: 0.9; max-width: 600px; margin: 0 auto; }

        .about-section { padding: 80px 20px; background: #fff; }
        .about-container { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; gap: 60px; }
        .about-text { flex: 1; }
        .about-text h2 { font-size: 32px; color: var(--text-main); margin-bottom: 20px; font-weight: 800; position: relative; padding-left: 20px; }
        .about-text h2::before { content: ''; position: absolute; left: 0; top: 5px; bottom: 5px; width: 6px; background: var(--primary); border-radius: 3px; }
        .about-text p { font-size: 16px; color: var(--text-sub); margin-bottom: 20px; line-height: 1.8; text-align: justify; }
        .about-img { flex: 1; }
        .about-img img { border-radius: 20px; box-shadow: 0 20px 40px rgba(0,0,0,0.1); }

        .stats-section { background: var(--bg-body); padding: 60px 20px; }
        .stats-grid { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; text-align: center; }
        .stat-item { background: #fff; padding: 40px 20px; border-radius: var(--radius); box-shadow: var(--shadow); }
        .stat-num { font-size: 48px; font-weight: 800; color: var(--primary); margin-bottom: 10px; }
        .stat-label { font-size: 16px; font-weight: 600; color: var(--text-main); }

        .values-section { padding: 80px 20px; background: #fff; }
        .values-header { text-align: center; margin-bottom: 50px; }
        .values-header h2 { font-size: 32px; margin-bottom: 15px; }
        .values-grid { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
        .value-card { text-align: center; padding: 40px 30px; border: 1px solid var(--border-color); border-radius: var(--radius); transition: 0.3s; }
        .value-card:hover { border-color: var(--primary); box-shadow: var(--shadow); transform: translateY(-5px); }
        .value-icon { font-size: 50px; margin-bottom: 20px; display: inline-block; }
        .value-card h3 { font-size: 20px; margin-bottom: 15px; color: var(--primary-dark); }
        .value-card p { color: var(--text-sub); font-size: 14px; }

        
        .footer { background: #001529; color: #a0aec0; padding: 60px 20px 20px; }
        .footer-grid { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; margin-bottom: 40px; }
        .footer-brand .logo span { color: #fff; }
        .footer-brand p { margin-top: 20px; font-size: 14px; line-height: 1.8; }
        .footer-title { color: #fff; font-size: 18px; font-weight: 600; margin-bottom: 20px; padding-bottom: 10px; border-bottom: 2px solid var(--primary); display: inline-block; }
        .footer-links li { margin-bottom: 12px; }
        .footer-bottom { max-width: 1200px; margin: 0 auto; border-top: 1px solid rgba(255,255,255,0.1); padding-top: 20px; display: flex; justify-content: space-between; font-size: 13px; }
        .footer-bottom-links { display: flex; gap: 15px; }

        @media (max-width: 992px) {
            .nav-desktop, .nav-actions { display: none; }
            .menu-toggle { display: block; }
            .about-container { flex-direction: column; }
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .values-grid { grid-template-columns: 1fr; }
            .footer-grid { grid-template-columns: repeat(2, 1fr); }
        }
        @media (max-width: 768px) {
            .stats-grid, .footer-grid { grid-template-columns: 1fr; }
            .footer-bottom { flex-direction: column; text-align: center; gap: 10px; }
        }