:root {
            --navy: #0a192f;
            --crimson: #d10024;
            --slate: #475569;
            --off-white: #f8fafc;
        }

        body {
            font-family: 'Georgia', serif;
            color: var(--slate);
            line-height: 1.8;
            margin: 0;
            padding: 0;
            background-color: #fff;
        }

        .sans { font-family: 'Helvetica Neue', Arial, sans-serif; }

        /* Hero Styling */
        .hero-banner {
            position: relative;
            height: 70vh;
            min-height: 500px;
            background: url('https://upba711.myueeshop.com/u_file/2601/12/photo/CoolWavesvsRadiofrequencenoonda1800x1000.webp') center/cover no-repeat;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
        }

        .hero-banner::after {
            content: '';
            position: absolute;
            top: 0; left: 0; width: 100%; height: 100%;
            background: linear-gradient(to bottom, rgba(10,25,47,0.8), rgba(10,25,47,0.4));
        }

        .hero-text {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 1000px;
            padding: 0 20px;
        }

        .hero-text h1 {
            font-size: clamp(2rem, 5vw, 4rem);
            margin-bottom: 20px;
            line-height: 1.1;
        }

        /* Content Layout */
        .container {
            max-width: 900px;
            margin: 0 auto;
            padding: 60px 20px;
        }

        .article-body { font-size: 1.2rem; }

        h2 {
            color: var(--navy);
            font-family: 'Helvetica Neue', sans-serif;
            font-size: 2rem;
            margin-top: 60px;
            text-transform: uppercase;
            letter-spacing: 1px;
            border-bottom: 2px solid var(--crimson);
            display: inline-block;
            padding-bottom: 5px;
        }

        /* Comparison Table */
        .table-box {
            margin: 40px 0;
            box-shadow: 0 10px 30px rgba(0,0,0,0.05);
            border-radius: 8px;
            overflow: hidden;
        }

        table {
            width: 100%;
            border-collapse: collapse;
            font-family: sans-serif;
        }

        th { background: var(--navy); color: white; padding: 20px; text-align: left; }
        td { padding: 15px 20px; border-bottom: 1px solid #eee; }
        tr:hover { background-color: #f1f5f9; }

        /* FAQ Styling */
        .faq-section {
            margin-top: 80px;
            background: var(--off-white);
            padding: 40px;
            border-radius: 12px;
        }

        .faq-item {
            margin-bottom: 25px;
            border-bottom: 1px solid #e2e8f0;
            padding-bottom: 15px;
        }

        .faq-question {
            font-weight: bold;
            color: var(--navy);
            font-size: 1.25rem;
            display: block;
            margin-bottom: 10px;
        }

        .faq-answer { font-size: 1.1rem; color: #64748b; }

        /* CTA */
        .cta-card {
            background: linear-gradient(135deg, var(--navy) 0%, #1e293b 100%);
            color: white;
            padding: 60px;
            text-align: center;
            border-radius: 20px;
            margin: 80px 0;
        }

        .btn {
            display: inline-block;
            background: var(--crimson);
            color: white;
            padding: 20px 45px;
            text-decoration: none;
            border-radius: 50px;
            font-weight: bold;
            font-family: sans-serif;
            margin-top: 25px;
            transition: 0.3s;
        }

        .btn:hover { background: #991b1b; transform: scale(1.05); }

        @media (max-width: 600px) {
            .hero-banner { height: 50vh; }
            .container { padding: 40px 15px; }
            .cta-card { padding: 30px; }
        }