:root {
            --primary-color: #1a365d;
            --secondary-color: #2b6cb0;
            --accent-color: #dd6b20;
            --bg-light: #f7fafc;
            --border-color: #e2e8f0;
            --text-main: #2d3748;
        }

        * { box-sizing: border-box; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
            color: var(--text-main);
            background-color: #f8fafc;
            line-height: 1.6;
            margin: 0; padding: 0;
        }

        a { text-decoration: none; color: var(--secondary-color); }
        a:hover { color: var(--primary-color); }

        /* Navigation */
        header { background: #ffffff; border-bottom: 1px solid var(--border-color); position: sticky; top: 0; z-index: 100; }
        nav { max-width: 1200px; margin: 0 auto; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; height: 72px; }
        .logo { display: flex; align-items: center; gap: 12px; color: var(--primary-color); }
        .logo-icon { width: 36px; height: 36px; background: var(--primary-color); color: #fff; border-radius: 8px; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 20px; }
        .logo-text span { font-size: 20px; font-weight: 700; display: block; line-height: 1.1; }
        .logo-text small { font-size: 10px; color: #718096; letter-spacing: 0.5px; }
        .nav-links { display: flex; list-style: none; gap: 28px; margin: 0; padding: 0; align-items: center; }
        .nav-links a { color: var(--text-main); font-weight: 500; font-size: 15px; }
        .nav-links a:hover, .nav-links a.active { color: var(--secondary-color); }
        .nav-cta { background: var(--accent-color); color: #fff !important; padding: 8px 18px; border-radius: 4px; }
        .nav-cta:hover { background: #c05621; color: #fff !important; }
        .dropdown { position: relative; }
        .dropdown-toggle { display: inline-flex; align-items: center; gap: 4px; }
        .dropdown-menu { display: none; position: absolute; top: calc(100% + 8px); left: 0; background: #ffffff; border: 1px solid var(--border-color); border-radius: 6px; min-width: 200px; padding: 8px 0; list-style: none; margin: 0; box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1); z-index: 200; }
        .dropdown:hover .dropdown-menu, .dropdown:focus-within .dropdown-menu { display: block; }
        .dropdown-menu a { display: block; padding: 8px 16px; font-size: 14px; color: var(--text-main); white-space: nowrap; }
        .dropdown-menu a:hover { background: #f7fafc; color: var(--secondary-color); }
        .dropdown-menu a.active { color: var(--secondary-color); font-weight: 600; }
        .hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; }
        .hamburger span { width: 24px; height: 2px; background: var(--primary-color); }
        @media (max-width: 768px) { .nav-links { display: none; } .hamburger { display: flex; } }

        /* Breadcrumb */
        .breadcrumb { background: #fff; border-bottom: 1px solid var(--border-color); }
        .breadcrumb-inner { max-width: 1200px; margin: 0 auto; padding: 12px 24px; font-size: 14px; color: #718096; }
        .breadcrumb-inner a { color: var(--secondary-color); }
        .breadcrumb-sep { margin: 0 8px; color: #cbd5e0; }

        .main-wrapper { max-width: 1100px; margin: 40px auto; padding: 0 20px; }

        .page-header { text-align: center; margin-bottom: 40px; border-bottom: 2px solid var(--primary-color); padding-bottom: 20px; }
        h1 { font-size: 32px; color: var(--primary-color); margin: 0 0 10px 0; }
        .subtitle { font-size: 16px; color: #718096; margin: 0; }

        .grid-container { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; margin-bottom: 40px; align-items: start; }
        @media (max-width: 768px) { .grid-container { grid-template-columns: 1fr; } }

        .card { background: #ffffff; border: 1px solid var(--border-color); border-radius: 8px; padding: 30px; box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05); }
        .form-group { margin-bottom: 20px; }
        .form-group label { display: block; font-weight: bold; margin-bottom: 8px; color: var(--primary-color); }
        .form-control { width: 100%; padding: 12px; border: 1px solid #cbd5e0; border-radius: 6px; font-size: 15px; }

        .results-box { background-color: var(--bg-light); border-left: 5px solid var(--secondary-color); padding: 20px; border-radius: 0 6px 6px 0; }
        .result-item { font-size: 14px; margin-bottom: 10px; display: flex; justify-content: space-between; gap: 12px; padding-bottom: 8px; border-bottom: 1px dashed #e2e8f0; }
        .result-item:last-child { border-bottom: none; padding-bottom: 0; margin-bottom: 0; }
        .result-item strong { color: #22543d; font-size: 15px; }
        .result-label { color: #4a5568; }

        .result-panel { background-color: #ffffff; border-left: 4px solid #48bb78; border-radius: 0 6px 6px 0; padding: 18px; }
        .result-section { margin-bottom: 14px; padding-bottom: 8px; border-bottom: 1px dashed #e2e8f0; }
        .result-section:last-of-type { border-bottom: 1px solid #e2e8f0; margin-bottom: 10px; }
        .result-section-title { font-size: 12px; font-weight: bold; color: #2b6cb0; text-transform: uppercase; letter-spacing: 0.3px; margin-bottom: 8px; }
        .standard-info { background-color: #f7fafc; border-radius: 6px; padding: 14px 16px; margin-bottom: 14px; border: 1px solid #e2e8f0; }
        .standard-info .result-item:last-child { border-bottom: none; padding-bottom: 0; margin-bottom: 0; }
        .customer-divider { background-color: #fffaf0; border-left: 4px solid #dd6b20; padding: 10px 14px; margin-bottom: 14px; border-radius: 0 4px 4px 0; font-size: 12px; font-weight: bold; color: #744210; }
        .customer-info .result-item:last-child { border-bottom: none; padding-bottom: 0; margin-bottom: 0; }
        .calc-hook { font-size: 12px; color: #627d98; margin-top: 14px; padding-top: 12px; border-top: 1px dashed #bcccdc; line-height: 1.55; }

        h2 { font-size: 22px; color: var(--primary-color); border-bottom: 2px solid var(--border-color); padding-bottom: 8px; margin-top: 40px; }

        .data-table { width: 100%; border-collapse: collapse; margin: 20px 0; background: #ffffff; }
        .data-table th, .data-table td { border: 1px solid var(--border-color); padding: 12px 15px; text-align: left; }
        .data-table th { background-color: var(--primary-color); color: #ffffff; }
        .data-table tr:nth-child(even) { background-color: var(--bg-light); }
        .data-table td:nth-child(2) { white-space: nowrap; }

        .cta-banner { background: linear-gradient(135deg, #1a365d 0%, #2a4365 100%); color: white; padding: 30px; text-align: center; border-radius: 8px; margin-top: 40px; }
        .cta-banner h3 { margin-top: 0; }
        .cta-btn { display: inline-block; background-color: var(--accent-color); color: white; padding: 14px 45px; text-decoration: none; font-weight: bold; border-radius: 4px; margin-top: 15px; border: none; font-size: 16px; cursor: pointer; }
        .cta-btn:hover { background-color: #c05621; }

        .faq-section { margin-top: 40px; }
        .faq-wrapper { background: #ffffff; border: 1px solid var(--border-color); border-radius: 8px; padding: 20px; }
        .faq-question { font-weight: bold; color: var(--primary-color); margin-top: 15px; font-size: 16px; }
        .faq-answer { color: #4a5568; margin-bottom: 15px; border-bottom: 1px solid #edf2f7; padding-bottom: 10px; }

        footer { background: var(--primary-color); color: #fff; padding: 60px 24px 24px; margin-top: 80px; }
        .footer-content { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; }
        .footer-section h4 { font-size: 16px; font-weight: 700; margin-bottom: 20px; color: #f6ad55; }
        .footer-section p, .footer-section li { font-size: 14px; color: rgba(255,255,255,0.8); margin-bottom: 12px; line-height: 1.6; }
        .footer-section ul { list-style: none; padding: 0; margin: 0; }
        .footer-section a { color: rgba(255,255,255,0.8); }
        .footer-section a:hover { color: #f6ad55; }
        .footer-bottom { max-width: 1200px; margin: 40px auto 0; padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.1); text-align: center; font-size: 14px; color: rgba(255,255,255,0.6); }
        @media (max-width: 768px) { .footer-content { grid-template-columns: 1fr; } }