<style>
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', 'Inter', system-ui, -apple-system, 'Roboto', sans-serif;
            background-color: #ffffff;
            color: #1a2c3e;
            line-height: 1.5;
        }
        :root {
            --zoom-blue: #0e72ed;
            --zoom-dark-blue: #0a5ec9;
            --zoom-light-bg: #f5f9ff;
            --border-light: #e9ecef;
        }
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 24px;
        }
        header {
            background: white;
            box-shadow: 0 1px 0 rgba(0,0,0,0.05);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 16px 0;
            flex-wrap: wrap;
        }
        .logo h1 {
            font-size: 28px;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo a {
            text-decoration: none;
            color: #0b2b3d;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .logo i {
            font-size: 32px;
            color: var(--zoom-blue);
        }
        .nav-links {
            display: flex;
            gap: 32px;
            align-items: center;
        }
        .nav-links a {
            text-decoration: none;
            font-weight: 500;
            color: #1f2f3a;
            transition: color 0.2s;
        }
        .nav-links a:hover, .nav-links a.active {
            color: var(--zoom-blue);
        }
        .btn-primary {
            background-color: var(--zoom-blue);
            color: white;
            padding: 12px 28px;
            border-radius: 40px;
            text-decoration: none;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: background 0.2s;
            border: none;
            cursor: pointer;
        }
        .btn-primary:hover {
            background-color: var(--zoom-dark-blue);
        }
        .btn-outline {
            background: transparent;
            border: 1.5px solid var(--zoom-blue);
            color: var(--zoom-blue);
            padding: 12px 28px;
            border-radius: 40px;
            text-decoration: none;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: all 0.2s;
        }
        .btn-outline:hover {
            background: var(--zoom-blue);
            color: white;
        }
        section {
            padding: 80px 0;
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 700;
            text-align: center;
            margin-bottom: 48px;
            color: #0b2b3d;
        }
        .cards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            gap: 32px;
        }
        .download-card {
            background: white;
            border-radius: 28px;
            padding: 32px 20px;
            box-shadow: 0 12px 28px rgba(0,0,0,0.05);
            text-align: center;
            border: 1px solid var(--border-light);
            transition: transform 0.2s;
        }
        .download-card i {
            font-size: 56px;
            color: var(--zoom-blue);
            margin-bottom: 18px;
        }
        .download-card h3 {
            font-size: 1.8rem;
            margin-bottom: 12px;
        }
        .download-card .btn-small {
            margin-top: 20px;
            display: inline-block;
            background: #eef2ff;
            padding: 10px 20px;
            border-radius: 32px;
            color: var(--zoom-blue);
            text-decoration: none;
            font-weight: 500;
        }
        .faq-item {
            margin-bottom: 16px;
            border: 1px solid var(--border-light);
            border-radius: 20px;
            overflow: hidden;
        }
        .faq-question {
            background: white;
            padding: 20px 24px;
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .faq-question:hover {
            background: #f5f9ff;
        }
        .faq-answer {
            padding: 0 24px;
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease, padding 0.3s ease;
            background: #fefefe;
        }
        .faq-item.active .faq-answer {
            padding: 20px 24px;
            max-height: 400px;
            border-top: 1px solid var(--border-light);
        }
        .faq-question i {
            transition: transform 0.2s;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }
        .callout-cards {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 30px;
            margin-top: 40px;
        }
        .callout-card {
            background: var(--zoom-light-bg);
            border-radius: 28px;
            padding: 32px;
            text-align: center;
            flex: 1;
            min-width: 220px;
        }
        .footer {
            background: #0b2027;
            color: #cddfe7;
            padding: 48px 0 24px;
        }
        .footer a {
            color: #cddfe7;
            text-decoration: none;
        }
        .keyword-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin: 20px 0;
        }
        .keyword-tags span {
            background: #1e3a47;
            padding: 6px 16px;
            border-radius: 40px;
            font-size: 0.85rem;
        }
        @media (max-width: 768px) {
            .navbar { flex-direction: column; gap: 15px; }
            .nav-links { gap: 24px; }
            section { padding: 50px 0; }
            .section-title { font-size: 1.8rem; }
        }
    </style>