:root {
            --h187-primary: #f97316;
            --h187-primary-dark: #ea580c;
            --h187-secondary: #0f172a;
            --h187-accent: #38bdf8;
            --h187-bg-light: #f8fafc;
            --h187-text-main: #1e293b;
            --h187-text-muted: #64748b;
            --h187-white: #ffffff;
            --h187-container-width: 1320px;
            --h187-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        body {
            font-family: "Inter", "Microsoft YaHei", sans-serif;
            background-color: var(--h187-bg-light);
            color: var(--h187-text-main);
            line-height: 1.7;
            overflow-x: hidden;
            word-break: keep-all;
        }

        /* Typography */
        h1, h2, h3 {
            line-height: 1.2;
            word-break: keep-all;
            white-space: normal;
        }

        p {
            word-break: break-word;
            overflow-wrap: break-word;
            line-height: 1.8;
        }

        /* Layout */
        .h187-container {
            max-width: var(--h187-container-width);
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        .h187-flex {
            display: flex;
            flex-wrap: wrap;
        }

        .h187-flex-item {
            min-width: 0;
        }

        /* Navigation */
        .h187-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
            padding: 16px 0;
            transition: var(--h187-transition);
        }

        .h187-nav-wrapper {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }

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

        .h187-logo img {
            height: 40px;
            width: auto;
            display: block;
        }

        .h187-menu {
            display: flex;
            list-style: none;
            flex-wrap: wrap;
            gap: 24px;
        }

        .h187-menu li a {
            text-decoration: none;
            color: var(--h187-text-main);
            font-weight: 500;
            font-size: 15px;
            transition: var(--h187-transition);
            padding: 8px 0;
            border-bottom: 2px solid transparent;
        }

        .h187-menu li a:hover {
            color: var(--h187-primary);
        }

        .h187-menu li a.h187-active {
            color: var(--h187-primary);
            border-bottom: 2px solid var(--h187-primary);
        }

        /* Hero Section - Unique Diagonal Layout */
        .h187-hero {
            padding-top: 180px;
            padding-bottom: 120px;
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
            color: var(--h187-white);
            position: relative;
            overflow: hidden;
        }

        .h187-hero::after {
            content: "";
            position: absolute;
            bottom: -50px;
            right: -50px;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(249, 115, 22, 0.1) 0%, transparent 70%);
            z-index: 0;
        }

        .h187-hero-content {
            position: relative;
            z-index: 1;
            max-width: 900px;
            margin: 0 auto;
            text-align: center;
        }

        .h187-hero h1 {
            font-size: clamp(2rem, 4vw + 1rem, 3.5rem);
            margin-bottom: 24px;
            font-weight: 800;
            letter-spacing: -0.02em;
        }

        .h187-hero p {
            font-size: clamp(1.1rem, 1.5vw + 0.5rem, 1.35rem);
            color: var(--h187-text-muted);
            margin-bottom: 40px;
            max-width: 800px;
            margin-left: auto;
            margin-right: auto;
        }

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

        .h187-btn {
            padding: 16px 40px;
            border-radius: 8px;
            font-weight: 600;
            text-decoration: none;
            transition: var(--h187-transition);
            display: inline-block;
        }

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

        .h187-btn-primary:hover {
            background-color: var(--h187-primary-dark);
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(249, 115, 22, 0.2);
        }

        /* Modes Section - Feature Grid */
        .h187-modes {
            padding: 96px 0;
            background: var(--h187-white);
        }

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

        .h187-section-title h2 {
            font-size: clamp(1.75rem, 3vw + 0.5rem, 2.5rem);
            color: var(--h187-secondary);
            margin-bottom: 16px;
        }

        .h187-mode-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
            gap: 32px;
        }

        .h187-mode-card {
            background: var(--h187-bg-light);
            padding: 40px;
            border-radius: 16px;
            border: 1px solid rgba(0,0,0,0.05);
            transition: var(--h187-transition);
        }

        .h187-mode-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 20px 40px rgba(0,0,0,0.05);
            background: var(--h187-white);
            border-color: var(--h187-primary);
        }

        .h187-mode-icon {
            font-size: 32px;
            margin-bottom: 24px;
            color: var(--h187-primary);
        }

        .h187-mode-card h3 {
            font-size: 1.5rem;
            margin-bottom: 20px;
            color: var(--h187-secondary);
        }

        .h187-mode-list {
            list-style: none;
        }

        .h187-mode-list li {
            margin-bottom: 12px;
            padding-left: 24px;
            position: relative;
            font-size: 15px;
            color: var(--h187-text-main);
        }

        .h187-mode-list li::before {
            content: "✓";
            position: absolute;
            left: 0;
            color: var(--h187-primary);
            font-weight: bold;
        }

        .h187-algo-edge {
            margin-top: 24px;
            padding-top: 20px;
            border-top: 1px dashed #cbd5e1;
            font-style: italic;
            font-size: 14px;
            color: var(--h187-primary-dark);
        }

        /* Ecosystem Section - Asymmetric Layout */
        .h187-ecosystem {
            padding: 96px 0;
            background: #f1f5f9;
        }

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

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

        .h187-eco-text {
            flex: 1;
            min-width: 320px;
        }

        .h187-eco-text h4 {
            font-size: 1.25rem;
            color: var(--h187-primary);
            text-transform: uppercase;
            letter-spacing: 0.1em;
            margin-bottom: 12px;
        }

        .h187-eco-text h3 {
            font-size: 2.25rem;
            margin-bottom: 24px;
            color: var(--h187-secondary);
        }

        .h187-eco-visual {
            flex: 1;
            min-width: 320px;
            background: var(--h187-white);
            padding: 32px;
            border-radius: 24px;
            box-shadow: 0 15px 30px rgba(0,0,0,0.03);
            border: 1px solid rgba(0,0,0,0.05);
        }

        .h187-visual-placeholder {
            width: 100%;
            height: 240px;
            background: linear-gradient(45deg, #e2e8f0, #f8fafc);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            padding: 20px;
            color: var(--h187-text-muted);
            border: 2px dashed #cbd5e1;
        }

        /* Footer */
        .h187-footer {
            background: var(--h187-secondary);
            color: var(--h187-white);
            padding: 80px 0 40px;
        }

        .h187-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 48px;
            margin-bottom: 64px;
        }

        .h187-footer-brand h2 {
            font-size: 24px;
            margin-bottom: 20px;
            color: var(--h187-primary);
        }

        .h187-footer-brand p {
            color: #94a3b8;
            font-size: 14px;
        }

        .h187-footer-links h3 {
            font-size: 18px;
            margin-bottom: 24px;
        }

        .h187-footer-links ul {
            list-style: none;
        }

        .h187-footer-links ul li {
            margin-bottom: 12px;
        }

        .h187-footer-links ul li a {
            color: #94a3b8;
            text-decoration: none;
            transition: var(--h187-transition);
            font-size: 14px;
        }

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

        .h187-copyright {
            padding-top: 32px;
            border-top: 1px solid rgba(255,255,255,0.1);
            text-align: center;
            font-size: 14px;
            color: #64748b;
        }

        /* News Section */
        .h187-news {
            padding: 80px 0;
            background: var(--h187-bg-light);
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .h187-hero {
                padding-top: 140px;
                padding-bottom: 80px;
            }
        }

        @media (max-width: 768px) {
            .h187-menu {
                display: none; /* In a real project, a hamburger menu would be added */
            }
            .h187-eco-row, .h187-eco-row:nth-child(even) {
                flex-direction: column;
            }
            .h187-eco-text, .h187-eco-visual {
                width: 100%;
            }
            .h187-mode-grid {
                grid-template-columns: 1fr;
            }
        }