:root {
            --zpa57-primary: #0369a1;
            --zpa57-primary-dark: #0c4a6e;
            --zpa57-accent: #f59e0b;
            --zpa57-bg-dark: #0f172a;
            --zpa57-text-main: #334155;
            --zpa57-text-light: #f8fafc;
            --zpa57-glass: rgba(15, 23, 42, 0.85);
            --zpa57-spacing-unit: 8px;
            --zpa57-max-width: 1400px;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: "Inter", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--zpa57-text-main);
            line-height: 1.7;
            background-color: #f1f5f9;
            overflow-x: hidden;
            word-break: keep-all;
        }

        /* Typography */
        h1, h2, h3 {
            line-height: 1.2;
            color: var(--zpa57-bg-dark);
            margin-bottom: calc(var(--zpa57-spacing-unit) * 3);
            word-break: break-word;
        }

        h1 { font-size: clamp(2rem, 5vw + 1rem, 4rem); font-weight: 800; }
        h2 { font-size: clamp(1.5rem, 3vw + 1rem, 2.5rem); font-weight: 700; text-align: center; }
        p { font-size: clamp(1rem, 1vw + 0.5rem, 1.125rem); margin-bottom: 1.5rem; word-break: break-word; overflow-wrap: break-word; }

        /* Layout Components */
        .zpa57-container {
            max-width: var(--zpa57-max-width);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        .zpa57-flex {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
        }

        .zpa57-flex > * {
            min-width: 0;
        }

        /* Navigation */
        .zpa57-nav-wrapper {
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            background: var(--zpa57-glass);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255,255,255,0.1);
            transition: all 0.3s ease;
        }

        .zpa57-nav-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 80px;
            flex-wrap: wrap;
        }

        .zpa57-logo img {
            height: 45px;
            width: auto;
            display: block;
        }

        .zpa57-menu {
            display: flex;
            list-style: none;
            gap: 20px;
            flex-wrap: wrap;
        }

        .zpa57-menu a {
            text-decoration: none;
            color: var(--zpa57-text-light);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 12px;
            border-radius: 6px;
            transition: all 0.2s ease;
        }

        .zpa57-menu a:hover, .zpa57-menu a.active {
            color: var(--zpa57-accent);
            background: rgba(255,255,255,0.05);
        }

        /* Hero Section */
        .zpa57-hero {
            position: relative;
            min-height: 90vh;
            background: linear-gradient(rgba(15, 23, 42, 0.7), rgba(15, 23, 42, 0.7)), url('images/hero_bg.jpg') center/cover no-repeat;
            display: flex;
            align-items: center;
            padding-top: 100px;
            color: white;
            clip-path: ellipse(150% 100% at 50% 0%);
        }

        .zpa57-hero-content {
            max-width: 900px;
            text-align: center;
            margin: 0 auto;
        }

        .zpa57-hero h1 { color: white; margin-bottom: 24px; }
        .zpa57-hero p { color: #cbd5e1; max-width: 700px; margin: 0 auto 40px auto; }

        .zpa57-btn {
            display: inline-block;
            padding: 16px 40px;
            border-radius: 50px;
            font-weight: 700;
            text-decoration: none;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            cursor: pointer;
            border: none;
        }

        .zpa57-btn-primary {
            background: linear-gradient(135deg, var(--zpa57-accent), #f97316);
            color: white;
            box-shadow: 0 10px 20px rgba(245, 158, 11, 0.3);
        }

        .zpa57-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 30px rgba(0,0,0,0.2);
        }

        /* Feature Matrix (Grid) */
        .zpa57-matrix-section {
            padding: 96px 0;
            background: #fff;
        }

        .zpa57-matrix-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
            gap: 32px;
            margin-top: 64px;
        }

        .zpa57-matrix-card {
            background: #f8fafc;
            border-radius: 20px;
            padding: 40px;
            border: 1px solid #e2e8f0;
            transition: all 0.3s ease;
        }

        .zpa57-matrix-card:hover {
            border-color: var(--zpa57-primary);
            box-shadow: 0 20px 40px rgba(0,0,0,0.05);
        }

        .zpa57-matrix-card h3 {
            color: var(--zpa57-primary);
            font-size: 1.5rem;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .zpa57-protocol-tag {
            display: inline-block;
            background: #e0f2fe;
            color: var(--zpa57-primary);
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 0.85rem;
            margin: 4px;
            font-weight: 600;
        }

        /* Image-Text Section */
        .zpa57-visual-feature {
            padding: 96px 0;
        }

        .zpa57-feature-row {
            display: flex;
            align-items: center;
            gap: 64px;
            margin-bottom: 96px;
        }

        .zpa57-feature-row:nth-child(even) {
            flex-direction: row-reverse;
        }

        .zpa57-feature-text {
            flex: 1;
        }

        .zpa57-feature-image {
            flex: 1;
            position: relative;
        }

        .zpa57-feature-image img {
            width: 100%;
            border-radius: 24px;
            box-shadow: 0 30px 60px rgba(15, 23, 42, 0.15);
        }

        /* Dynamic Content Section */
        .zpa57-news-section {
            background: var(--zpa57-bg-dark);
            color: white;
            padding: 96px 0;
        }

        .zpa57-news-section h2 { color: white; margin-bottom: 48px; }

        .zpa57-news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }

        .zpa57-news-item {
            background: rgba(255,255,255,0.05);
            padding: 32px;
            border-radius: 16px;
            border-left: 4px solid var(--zpa57-accent);
        }

        /* Footer */
        .zpa57-footer {
            background: #020617;
            color: #94a3b8;
            padding: 80px 0 40px 0;
        }

        .zpa57-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
            margin-bottom: 64px;
        }

        .zpa57-footer-brand h2 {
            color: white;
            text-align: left;
            margin-bottom: 16px;
        }

        .zpa57-footer-links h4 {
            color: white;
            margin-bottom: 24px;
            font-size: 1.1rem;
        }

        .zpa57-footer-links ul {
            list-style: none;
        }

        .zpa57-footer-links li {
            margin-bottom: 12px;
        }

        .zpa57-footer-links a {
            color: inherit;
            text-decoration: none;
            transition: color 0.2s;
        }

        .zpa57-footer-links a:hover {
            color: var(--zpa57-accent);
        }

        .zpa57-copyright {
            padding-top: 40px;
            border-top: 1px solid rgba(255,255,255,0.1);
            text-align: center;
            font-size: 0.9rem;
        }

        /* Mobile Responsive */
        @media (max-width: 1024px) {
            .zpa57-feature-row {
                flex-direction: column !important;
                gap: 40px;
                text-align: center;
            }
            .zpa57-matrix-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .zpa57-nav-container {
                height: auto;
                padding: 16px 0;
                justify-content: center;
                gap: 16px;
            }
            .zpa57-menu {
                justify-content: center;
                gap: 10px;
            }
            .zpa57-hero {
                min-height: 70vh;
                clip-path: none;
                padding-bottom: 64px;
            }
        }