:root {
            --primary-color: rgb(191, 90, 242);
            --primary-glow: rgba(191, 90, 242, 0.35);
            --glacier-blue: #1D7BFF;
            --glacier-glow: rgba(29, 123, 255, 0.25);
            --deep-sea: #0B0F19;
            --panel-bg: rgba(20, 27, 45, 0.7);
            --border-color: rgba(255, 255, 255, 0.08);
            --text-primary: #F8FAFC;
            --text-secondary: #94A3B8;
            --silver-white: #E2E8F0;
            --card-glow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
        }

        * { margin: 0; padding: 0; box-sizing: border-box; }
        body { background-color: var(--deep-sea); color: var(--text-primary); font-family: -apple-system, BlinkMacSystemFont, sans-serif; overflow-x: hidden; line-height: 1.6; }
        a { color: inherit; text-decoration: none; transition: all 0.3s ease; }

        
        header {
            position: fixed; top: 0; left: 0; width: 100%; z-index: 100;
            background: rgba(11, 15, 25, 0.8); backdrop-filter: blur(20px); border-bottom: 1px solid var(--border-color);
        }
        .header-container { max-width: 1200px; margin: 0 auto; padding: 16px 24px; display: flex; align-items: center; justify-content: space-between; }
        .logo { display: inline-flex; align-items: center; gap: 12px; }
        .logo img { display: block; height: 40px; width: auto; max-width: 160px; object-fit: contain; }
        .logo span { display: inline-block; font-size: 20px; font-weight: 800; color: var(--text-primary); }
        .nav-desktop { display: flex; align-items: center; gap: 32px; }
        .nav-desktop a { font-size: 15px; font-weight: 500; color: var(--text-secondary); }
        .nav-desktop a:hover { color: var(--primary-color); }
        .header-btn {
            background: linear-gradient(135deg, var(--glacier-blue), var(--primary-color));
            padding: 8px 20px; border-radius: 30px; font-size: 14px; font-weight: 600; color: white;
            box-shadow: 0 4px 15px var(--primary-glow);
        }
        .menu-btn { display: none; background: none; border: none; color: var(--text-primary); font-size: 24px; cursor: pointer; }

        
        .drawer-overlay {
            position: fixed; top: 0; left: 0; width: 100%; height: 100%;
            background: rgba(0, 0, 0, 0.7); z-index: 199; opacity: 0; pointer-events: none; transition: opacity 0.3s ease;
        }
        .drawer-overlay.active { opacity: 1; pointer-events: auto; }
        .drawer {
            position: fixed; top: 0; left: -280px; width: 280px; height: 100%;
            background: var(--deep-sea); border-right: 1px solid var(--border-color); z-index: 200;
            padding: 30px 24px; display: flex; flex-direction: column; gap: 40px; transition: left 0.3s ease;
        }
        .drawer.active { left: 0; }
        .drawer-header { display: flex; align-items: center; justify-content: space-between; }
        .drawer-close { background: none; border: none; color: var(--text-primary); font-size: 24px; cursor: pointer; }
        .drawer-nav { display: flex; flex-direction: column; gap: 20px; }
        .drawer-nav a { font-size: 16px; font-weight: 500; color: var(--text-secondary); }
        .drawer-nav a:hover { color: var(--primary-color); }

        
        .dl-section {
            padding-top: 160px;
            padding-bottom: 100px;
            max-width: 1100px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .dl-header {
            text-align: center;
            margin-bottom: 60px;
        }
        .dl-header h1 {
            font-size: 40px;
            font-weight: 800;
            margin-bottom: 16px;
        }
        .dl-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
            margin-bottom: 60px;
        }
        .dl-card {
            background: var(--panel-bg);
            border: 1px solid var(--border-color);
            border-radius: 20px;
            padding: 40px 30px;
            text-align: center;
            backdrop-filter: blur(20px);
            transition: all 0.3s ease;
        }
        .dl-card:hover {
            transform: translateY(-8px);
            border-color: var(--primary-color);
            box-shadow: 0 10px 30px var(--primary-glow);
        }
        .dl-icon {
            font-size: 48px;
            margin-bottom: 20px;
        }
        .dl-platform {
            font-size: 22px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .dl-ver {
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 24px;
        }
        .dl-btn {
            display: inline-block;
            background: linear-gradient(135deg, var(--glacier-blue), var(--primary-color));
            color: white;
            padding: 12px 30px;
            border-radius: 8px;
            font-weight: 600;
            box-shadow: 0 4px 15px var(--primary-glow);
            width: 100%;
        }

        
        .faq-box {
            background: rgba(255,255,255,0.01);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 40px;
        }
        .faq-title {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 30px;
            text-align: center;
        }
        .faq-item {
            border-bottom: 1px solid var(--border-color);
            padding: 20px 0;
        }
        .faq-q {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 10px;
        }
        .faq-a {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        
        footer {
            background: #060910; border-top: 1px solid var(--border-color); padding: 80px 24px 30px;
        }
        .footer-container {
            max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 40px; margin-bottom: 60px;
        }
        .footer-brand { display: flex; flex-direction: column; gap: 20px; }
        .footer-desc { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }
        .footer-title { font-size: 16px; font-weight: 700; color: var(--text-primary); margin-bottom: 24px; }
        .footer-links { list-style: none; display: flex; flex-direction: column; gap: 12px; }
        .footer-links a { font-size: 14px; color: var(--text-secondary); }
        .footer-links a:hover { color: var(--primary-color); }
        .footer-bottom {
            max-width: 1200px; margin: 0 auto; border-top: 1px solid var(--border-color);
            padding-top: 30px; display: flex; justify-content: space-between; align-items: center;
            font-size: 13px; color: var(--text-secondary);
        }

        @media (max-width: 992px) {
            .dl-grid { grid-template-columns: 1fr; }
        }
        @media (max-width: 768px) {
            .nav-desktop, .header-btn { display: none; }
            .menu-btn { display: block; }
            .footer-container { grid-template-columns: 1fr; }
            .footer-bottom { flex-direction: column; gap: 15px; text-align: center; }
        }