:root {
            --hdsq1-primary: #1A73E8;
            --hdsq1-secondary: #EA4335;
            --hdsq1-tertiary: #FBBC05;
            --hdsq1-accent: #34A853;
            --hdsq1-text: #202124;
            --hdsq1-bg: #FFFFFF;
            --hdsq1-gray: #F8F9FA;
            --hdsq1-glass: rgba(255, 255, 255, 0.8);
            --hdsq1-radius: 16px;
        }

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

        body {
            font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            color: var(--hdsq1-text);
            background-color: var(--hdsq1-bg);
            line-height: 1.6;
            overflow-x: hidden;
            word-break: keep-all;
        }

        /* Typography */
        h1 { font-size: clamp(2rem, 5vw + 1rem, 4rem); line-height: 1.1; font-weight: 800; }
        h2 { font-size: clamp(1.5rem, 3vw + 1rem, 2.5rem); margin-bottom: 24px; }
        p { font-size: clamp(1rem, 1vw + 0.5rem, 1.125rem); line-height: 1.8; margin-bottom: 16px; color: #5f6368; }

        /* Navigation */
        .hdsq1-nav-wrapper {
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            transition: all 0.3s ease;
            background: transparent;
        }

        .hdsq1-nav-wrapper.hdsq1-scrolled {
            background: var(--hdsq1-glass);
            backdrop-filter: blur(10px);
            box-shadow: 0 4px 20px rgba(0,0,0,0.05);
        }

        .hdsq1-nav-container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 16px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }

        .hdsq1-logo {
            flex: 0 0 auto;
            min-width: 0;
        }

        .hdsq1-logo img {
            height: 40px;
            width: auto;
        }

        .hdsq1-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 8px;
            min-width: 0;
        }

        .hdsq1-menu-item a {
            text-decoration: none;
            color: var(--hdsq1-text);
            padding: 8px 16px;
            font-size: 14px;
            font-weight: 500;
            border-radius: 20px;
            transition: all 0.2s;
        }

        .hdsq1-menu-item a:hover {
            background: rgba(26, 115, 232, 0.1);
            color: var(--hdsq1-primary);
        }

        .hdsq1-menu-item a.hdsq1-active {
            background: var(--hdsq1-primary);
            color: #fff;
        }

        /* Hero Section - Unique Liquid Design */
        .hdsq1-hero {
            padding: 160px 24px 80px;
            position: relative;
            overflow: hidden;
            background: radial-gradient(circle at 90% 10%, rgba(26, 115, 232, 0.05) 0%, transparent 40%);
        }

        .hdsq1-container {
            max-width: 1100px;
            margin: 0 auto;
            position: relative;
            z-index: 2;
        }

        .hdsq1-hero-content {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 48px;
        }

        .hdsq1-hero-text {
            flex: 1;
            min-width: 320px;
            word-break: break-word;
        }

        .hdsq1-hero-visual {
            flex: 1;
            min-width: 320px;
            position: relative;
        }

        .hdsq1-liquid-shape {
            width: 100%;
            height: 400px;
            background: linear-gradient(45deg, var(--hdsq1-primary), #64b5f6);
            border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%;
            animation: hdsq1-morph 10s ease-in-out infinite;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            box-shadow: 0 20px 40px rgba(26, 115, 232, 0.3);
        }

        @keyframes hdsq1-morph {
            0% { border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%; }
            50% { border-radius: 60% 40% 30% 70% / 50% 60% 40% 60%; }
            100% { border-radius: 40% 60% 70% 30% / 40% 50% 60% 50%; }
        }

        /* Shortcut Section */
        .hdsq1-shortcuts {
            background: var(--hdsq1-gray);
            padding: 80px 24px;
            margin: 40px 0;
            border-radius: 40px;
        }

        .hdsq1-key-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
            margin-top: 48px;
        }

        .hdsq1-key-card {
            background: #fff;
            padding: 40px;
            border-radius: var(--hdsq1-radius);
            box-shadow: 0 10px 30px rgba(0,0,0,0.03);
            transition: transform 0.3s ease;
            min-width: 0;
        }

        .hdsq1-key-card:hover {
            transform: translateY(-10px);
        }

        .hdsq1-kdb-group {
            display: flex;
            gap: 8px;
            margin-bottom: 24px;
            flex-wrap: wrap;
        }

        .hdsq1-kbd {
            background: #f1f3f4;
            border: 1px solid #dadce0;
            border-radius: 6px;
            padding: 4px 12px;
            font-family: monospace;
            font-weight: bold;
            box-shadow: 0 2px 0 #dadce0;
        }

        /* Steps Section */
        .hdsq1-steps {
            padding: 96px 24px;
        }

        .hdsq1-step-item {
            display: flex;
            flex-wrap: wrap;
            gap: 64px;
            margin-bottom: 96px;
            align-items: center;
        }

        .hdsq1-step-item:nth-child(even) {
            flex-direction: row-reverse;
        }

        .hdsq1-step-text {
            flex: 1;
            min-width: 300px;
        }

        .hdsq1-step-num {
            font-size: 80px;
            font-weight: 900;
            color: rgba(26, 115, 232, 0.1);
            line-height: 1;
            margin-bottom: -20px;
        }

        .hdsq1-step-image-box {
            flex: 1;
            min-width: 300px;
            background: #fff;
            border-radius: 24px;
            padding: 24px;
            box-shadow: 0 30px 60px rgba(0,0,0,0.08);
            border: 1px solid #eee;
        }

        /* Abstract UI Elements instead of missing images */
        .hdsq1-ui-mock {
            height: 240px;
            background: #f8f9fa;
            border-radius: 12px;
            position: relative;
            overflow: hidden;
        }

        .hdsq1-ui-bar { height: 32px; background: #e8eaed; margin-bottom: 16px; width: 80%; border-radius: 4px; }
        .hdsq1-ui-line { height: 12px; background: #f1f3f4; margin-bottom: 8px; width: 100%; border-radius: 2px; }

        /* FAQ Section */
        .hdsq1-faq-section {
            max-width: 900px;
            margin: 0 auto 96px;
            padding: 0 24px;
        }

        .hdsq1-faq-item {
            border-bottom: 1px solid #eee;
            padding: 24px 0;
        }

        .hdsq1-faq-q {
            font-weight: 700;
            font-size: 1.25rem;
            margin-bottom: 12px;
            color: var(--hdsq1-primary);
        }

        /* Footer */
        .hdsq1-footer {
            background: #202124;
            color: #fff;
            padding: 80px 24px 40px;
        }

        .hdsq1-footer-content {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 48px;
        }

        .hdsq1-footer-brand {
            flex: 1;
            min-width: 280px;
        }

        .hdsq1-footer-brand h3 {
            font-size: 24px;
            margin-bottom: 16px;
            color: #fff;
        }

        .hdsq1-footer-links {
            flex: 2;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 32px;
            min-width: 300px;
        }

        .hdsq1-footer-links ul {
            list-style: none;
        }

        .hdsq1-footer-links a {
            color: #9aa0a6;
            text-decoration: none;
            font-size: 14px;
            display: block;
            margin-bottom: 12px;
            transition: color 0.2s;
        }

        .hdsq1-footer-links a:hover {
            color: #fff;
        }

        .hdsq1-copyright {
            margin-top: 80px;
            padding-top: 24px;
            border-top: 1px solid #3c4043;
            text-align: center;
            font-size: 14px;
            color: #9aa0a6;
        }

        /* Mobile Adjustments */
        @media (max-width: 768px) {
            .hdsq1-menu {
                display: none; /* In a real site, implement a hamburger menu */
            }
            .hdsq1-step-item {
                gap: 32px;
                margin-bottom: 64px;
            }
            .hdsq1-hero {
                padding-top: 120px;
            }
        }

        /* Action Button */
        .hdsq1-btn {
            display: inline-block;
            padding: 16px 32px;
            border-radius: 30px;
            background: var(--hdsq1-primary);
            color: #fff;
            text-decoration: none;
            font-weight: 600;
            transition: all 0.3s;
            border: none;
            cursor: pointer;
            box-shadow: 0 4px 14px rgba(26, 115, 232, 0.4);
        }

        .hdsq1-btn:hover {
            transform: scale(1.05);
            background: #1967d2;
            box-shadow: 0 6px 20px rgba(26, 115, 232, 0.5);
        }