:root {
            --h187-primary: #f59e0b;
            --h187-primary-dark: #d97706;
            --h187-bg: #0f172a;
            --h187-surface: #1e293b;
            --h187-text: #f1f5f9;
            --h187-text-muted: #94a3b8;
            --h187-accent: #38bdf8;
            --h187-gap: 8px;
            --h187-radius: 16px;
            --h187-container: 1300px;
        }

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

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--h187-bg);
            color: var(--h187-text);
            line-height: 1.6;
            overflow-x: hidden;
            word-break: break-word;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: all 0.3s ease;
        }

        /* --- Navigation --- */
        .h187-header {
            position: fixed;
            top: 24px;
            left: 50%;
            transform: translateX(-50%);
            width: 95%;
            max-width: 1200px;
            z-index: 1000;
            background: rgba(30, 41, 59, 0.7);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 100px;
            padding: 12px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            box-shadow: 0 10px 30px rgba(0,0,0,0.3);
        }

        .h187-logo {
            flex-shrink: 0;
            min-width: 0;
        }

        .h187-logo img {
            height: 32px;
            display: block;
        }

        .h187-nav-list {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 16px;
            min-width: 0;
        }

        .h187-nav-item a {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--h187-text-muted);
            padding: 8px 12px;
            border-radius: 20px;
        }

        .h187-nav-item a:hover {
            color: var(--h187-primary);
        }

        .h187-nav-item a.h187-active {
            color: var(--h187-text);
            background: var(--h187-primary);
        }

        /* --- Hero Section --- */
        .h187-hero {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 160px 24px 80px;
            background: radial-gradient(circle at 50% 50%, rgba(245, 158, 11, 0.1) 0%, transparent 70%);
            position: relative;
        }

        .h187-hero-content {
            max-width: 900px;
            text-align: center;
            z-index: 2;
        }

        .h187-hero-tag {
            display: inline-block;
            background: rgba(245, 158, 11, 0.1);
            color: var(--h187-primary);
            padding: 8px 20px;
            border-radius: 30px;
            font-size: 0.9rem;
            font-weight: 600;
            margin-bottom: 24px;
            border: 1px solid var(--h187-primary);
        }

        .h187-hero h1 {
            font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
            line-height: 1.1;
            margin-bottom: 24px;
            font-weight: 800;
            letter-spacing: -0.02em;
            background: linear-gradient(135deg, #fff 0%, #94a3b8 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .h187-hero p {
            font-size: clamp(1.1rem, 1.5vw + 0.5rem, 1.4rem);
            color: var(--h187-text-muted);
            margin-bottom: 48px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

        .h187-hero-btns {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
        }

        .h187-btn {
            padding: 16px 36px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1.1rem;
            cursor: pointer;
            border: none;
            display: inline-flex;
            align-items: center;
            justify-content: center;
        }

        .h187-btn-primary {
            background: var(--h187-primary);
            color: #000;
        }

        .h187-btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(245, 158, 11, 0.3);
            background: #fbbf24;
        }

        /* --- Computational Modes --- */
        .h187-modes-section {
            padding: 96px 24px;
            max-width: var(--h187-container);
            margin: 0 auto;
        }

        .h187-section-title {
            text-align: center;
            margin-bottom: 64px;
        }

        .h187-section-title h2 {
            font-size: clamp(2rem, 3vw, 3rem);
            margin-bottom: 16px;
        }

        .h187-modes-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
        }

        .h187-mode-card {
            background: var(--h187-surface);
            padding: 48px;
            border-radius: var(--h187-radius);
            border: 1px solid rgba(255,255,255,0.05);
            transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        .h187-mode-card:hover {
            transform: translateY(-10px);
            border-color: var(--h187-primary);
            box-shadow: 0 20px 40px rgba(0,0,0,0.4);
        }

        .h187-mode-icon {
            font-size: 2.5rem;
            margin-bottom: 24px;
            color: var(--h187-primary);
        }

        .h187-mode-card h3 {
            font-size: 1.5rem;
            margin-bottom: 16px;
            color: #fff;
        }

        .h187-mode-capabilities {
            list-style: none;
            margin-bottom: 24px;
            flex-grow: 1;
        }

        .h187-mode-capabilities li {
            position: relative;
            padding-left: 24px;
            margin-bottom: 12px;
            font-size: 0.95rem;
            color: var(--h187-text-muted);
        }

        .h187-mode-capabilities li::before {
            content: "→";
            position: absolute;
            left: 0;
            color: var(--h187-primary);
        }

        .h187-mode-edge {
            background: rgba(56, 189, 248, 0.1);
            padding: 16px;
            border-radius: 12px;
            font-size: 0.85rem;
            border-left: 4px solid var(--h187-accent);
            color: var(--h187-accent);
        }

        /* --- Workflow Ecosystem --- */
        .h187-workflow-section {
            background: #0a0f1d;
            padding: 96px 24px;
        }

        .h187-workflow-container {
            max-width: var(--h187-container);
            margin: 0 auto;
        }

        .h187-workflow-item {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 64px;
            margin-bottom: 80px;
        }

        .h187-workflow-item:nth-child(even) {
            flex-direction: row-reverse;
        }

        .h187-workflow-text {
            flex: 1;
            min-width: 300px;
        }

        .h187-workflow-text h4 {
            font-size: 0.9rem;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--h187-primary);
            margin-bottom: 16px;
        }

        .h187-workflow-text h3 {
            font-size: 2.2rem;
            margin-bottom: 24px;
        }

        .h187-workflow-text p {
            font-size: 1.1rem;
            color: var(--h187-text-muted);
            line-height: 1.8;
        }

        .h187-workflow-visual {
            flex: 1;
            min-width: 300px;
            background: linear-gradient(135deg, var(--h187-surface) 0%, #0f172a 100%);
            height: 300px;
            border-radius: var(--h187-radius);
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            border: 1px solid rgba(255,255,255,0.05);
        }

        .h187-visual-box {
            width: 60%;
            height: 60%;
            border: 2px dashed rgba(245, 158, 11, 0.3);
            border-radius: 12px;
            position: relative;
        }

        /* --- Dynamic Section --- */
        .h187-dynamic-section {
            padding: 96px 24px;
            max-width: 1000px;
            margin: 0 auto;
        }

        /* --- Footer --- */
        .h187-footer {
            padding: 80px 24px 40px;
            border-top: 1px solid rgba(255,255,255,0.05);
            text-align: center;
        }

        .h187-footer-brand {
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 16px;
        }

        .h187-footer-links {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 24px;
            margin-bottom: 32px;
        }

        .h187-footer-links a {
            color: var(--h187-text-muted);
            font-size: 0.9rem;
        }

        .h187-footer-links a:hover {
            color: var(--h187-primary);
        }

        .h187-copyright {
            font-size: 0.8rem;
            color: #475569;
        }

        /* --- Responsive --- */
        @media (max-width: 820px) {
            .h187-header {
                top: 0;
                width: 100%;
                border-radius: 0;
                padding: 12px 16px;
            }

            .h187-nav-list {
                display: none; /* In a real project, add a hamburger menu */
            }

            .h187-hero {
                padding-top: 120px;
            }

            .h187-workflow-item {
                gap: 32px;
            }

            .h187-workflow-text h3 {
                font-size: 1.8rem;
            }
        }

        @media (max-width: 480px) {
            .h187-hero h1 {
                font-size: 2.2rem;
            }
            
            .h187-btn {
                width: 100%;
            }
        }