:root {
            --color-primary: #7c3aed;
            --color-primary-deep: #5b21b6;
            --color-primary-light: #a78bfa;
            --color-accent: #c026d3;
            --color-surface: #fefcfb;
            --color-surface-alt: #faf7f5;
            --color-card: #ffffff;
            --color-text: #1e1b1c;
            --color-text-muted: #6b5e62;
            --color-border: #e8dfdc;
            --color-shadow: rgba(91,33,182,0.08);
            --color-shadow-hover: rgba(124,58,237,0.16);
            --color-footer-bg: #1a1416;
            --gradient-hero: linear-gradient(135deg, #5b21b6 0%, #7c3aed 30%, #c026d3 65%, #e11d48 100%);
            --gradient-btn: linear-gradient(135deg, #7c3aed, #c026d3);
            --radius-md: 18px;
            --radius-lg: 24px;
            --radius-full: 50px;
            --transition: 0.22s ease;
        }

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

        body {
            font-family: system-ui, -apple-system, 'Segoe UI', 'Roboto', sans-serif;
            background: var(--color-surface);
            color: var(--color-text);
            line-height: 1.55;
            scroll-behavior: smooth;
        }

        .container { max-width: 1240px; margin: 0 auto; padding: 0 20px; }

        .header {
            background: rgba(255,255,255,0.94);
            backdrop-filter: blur(10px);
            box-shadow: 0 1px 4px var(--color-shadow);
            position: sticky; top: 0; z-index: 50;
            border-bottom: 1px solid var(--color-border);
        }
        .navbar {
            display: flex; align-items: center; justify-content: space-between;
            flex-wrap: wrap; padding: 14px 0; gap: 14px;
        }
        .logo {
            font-size: 1.6rem; font-weight: 750;
            background: var(--gradient-hero); -webkit-background-clip: text;
            background-clip: text; color: transparent; text-decoration: none;
        }
        .nav-links { display: flex; gap: 22px; align-items: center; flex-wrap: wrap; }
        .nav-links a {
            text-decoration: none; font-weight: 520; color: #3d3438;
            transition: color var(--transition); font-size: 0.93rem; white-space: nowrap;
            position: relative;
        }
        .nav-links a::after {
            content: ''; position: absolute; bottom: -4px; left: 0; width: 0; height: 2px;
            background: var(--color-primary); border-radius: 2px; transition: width var(--transition);
        }
        .nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
        .nav-links a:hover, .nav-links a.active { color: var(--color-primary); }
        .nav-links .btn-outline {
            border: 1.5px solid var(--color-border); padding: 7px 18px;
            border-radius: var(--radius-full); background: var(--color-card); font-weight: 520;
            transition: all var(--transition);
        }
        .nav-links .btn-outline:hover { background: #faf7f5; border-color: var(--color-primary-light); color: var(--color-primary-deep); }

        .hero {
            padding: 56px 0 40px;
            background: linear-gradient(165deg, #fefcfb 0%, #faf6f4 40%, #f5eeeb 100%);
            position: relative; overflow: hidden; text-align: center;
        }
        .hero-badge {
            display: inline-block; background: #f5f0ee; color: var(--color-primary-deep);
            font-size: 0.8rem; font-weight: 600; padding: 5px 16px;
            border-radius: var(--radius-full); margin-bottom: 14px; letter-spacing: 0.03em;
            border: 1px solid var(--color-border);
        }
        .hero-title {
            font-size: clamp(1.8rem, 4.5vw, 2.6rem); font-weight: 800; line-height: 1.22;
            background: var(--gradient-hero); -webkit-background-clip: text;
            background-clip: text; color: transparent;
            margin-bottom: 12px; letter-spacing: -0.03em;
        }
        .hero-sub { font-size: 1.05rem; color: var(--color-text-muted); max-width: 650px; margin: 0 auto; }

        .section-heading { text-align: center; font-size: 1.7rem; font-weight: 720; margin-bottom: 6px; }
        .section-sub { text-align: center; color: var(--color-text-muted); margin-bottom: 32px; font-size: 0.95rem; }

        .info-card {
            background: var(--color-surface-alt); border: 1px solid var(--color-border);
            border-radius: var(--radius-md); padding: 24px; transition: 0.2s;
        }
        .info-card:hover { border-color: var(--color-primary-light); }

        .code-block {
            background: #1e1b1c; color: #e0d6d9; padding: 16px; border-radius: 10px;
            font-family: 'SF Mono', 'Fira Code', monospace; font-size: 0.8rem;
            overflow-x: auto; white-space: pre-wrap; word-break: break-word; margin: 14px 0;
        }

        .grid-2col { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin: 20px 0; }
        .grid-3col { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin: 20px 0; }

        table {
            width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 0.9rem;
        }
        th {
            background: #f5f0ee; padding: 10px 12px; text-align: left; font-weight: 650;
            border-bottom: 2px solid var(--color-border);
        }
        td { padding: 10px 12px; border-bottom: 1px solid var(--color-border); }
        tr:hover td { background: #fdfcfb; }

        .badge {
            display: inline-block; padding: 3px 10px; border-radius: 14px;
            font-size: 0.68rem; font-weight: 700; margin-right: 4px;
        }
        .badge-win { background: #e0e7ff; color: #3730a3; }
        .badge-mac { background: #fce7f3; color: #9d174d; }
        .badge-android { background: #e8f5e9; color: #2e7d32; }
        .badge-ios { background: #f1f5f9; color: #334155; }

        .cta-section { padding: 48px 0; background: var(--color-footer-bg); color: #e0d6d9; }
        .cta-box {
            background: #23191c; border-radius: var(--radius-lg); padding: 30px;
            text-align: center; border: 1px solid #3d3034;
            max-width: 700px; margin: 0 auto;
        }
        .btn-cta {
            display: inline-block; background: var(--gradient-btn); color: #fff;
            font-weight: 700; padding: 13px 32px; border-radius: var(--radius-full);
            text-decoration: none; font-size: 1rem; transition: all 0.25s;
            box-shadow: 0 8px 18px -6px rgba(124,58,237,0.5);
            margin: 0 8px;
        }
        .btn-cta:hover { background: linear-gradient(135deg, #6d28d9, #a21caf); transform: translateY(-2px); }

        .footer {
            background: #120e10; color: #c4b5b9; padding: 50px 0 28px;
            font-size: 0.85rem; border-top: 1px solid #2a1f23;
        }
        .footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px,1fr)); gap: 34px; margin-bottom: 36px; }
        .footer-col h4 { color: #fff; margin-bottom: 14px; font-weight: 620; }
        .footer-col a { display: block; color: #9c8a8f; text-decoration: none; margin-bottom: 9px; font-size: 0.82rem; }
        .footer-col a:hover { color: #fff; }
        .copyright { text-align: center; padding-top: 28px; border-top: 1px solid #2a1f23; color: #7a6a6f; font-size: 0.76rem; }

        @media (max-width: 768px) {
            .navbar { flex-direction: column; align-items: flex-start; }
            .grid-2col, .grid-3col { grid-template-columns: 1fr; }
        }