:root {
            --hwo3t-primary: #ee4134;
            --hwo3t-primary-hover: #d6362b;
            --hwo3t-secondary: #2d3436;
            --hwo3t-bg-light: #fdfdfd;
            --hwo3t-text-main: #333333;
            --hwo3t-text-muted: #666666;
            --hwo3t-white: #ffffff;
            --hwo3t-accent-gradient: linear-gradient(135deg, #ee4134 0%, #ff7675 100%);
            --hwo3t-glass: rgba(255, 255, 255, 0.85);
            --hwo3t-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
            --hwo3t-radius: 16px;
            --hwo3t-container-width: 1080px;
        }

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

        body {
            font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--hwo3t-bg-light);
            color: var(--hwo3t-text-main);
            line-height: 1.7;
            overflow-x: hidden;
            word-break: break-word;
        }

        /* Navigation */
        .hwo3t-header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: var(--hwo3t-glass);
            backdrop-filter: blur(15px);
            border-bottom: 1px solid rgba(0,0,0,0.05);
            transition: all 0.3s ease;
        }

        .hwo3t-nav-container {
            max-width: var(--hwo3t-container-width);
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            padding: 16px 24px;
        }

        .hwo3t-logo {
            flex: 0 0 auto;
            min-width: 0;
        }

        .hwo3t-logo img {
            height: 36px;
            display: block;
        }

        .hwo3t-menu {
            display: flex;
            flex-wrap: wrap;
            list-style: none;
            gap: 24px;
        }

        .hwo3t-menu-item a {
            text-decoration: none;
            color: var(--hwo3t-text-main);
            font-size: 15px;
            font-weight: 500;
            padding: 8px 4px;
            position: relative;
            transition: color 0.3s ease;
        }

        .hwo3t-menu-item a:hover {
            color: var(--hwo3t-primary);
        }

        .hwo3t-menu-item a.active {
            color: var(--hwo3t-primary);
        }

        .hwo3t-menu-item a.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--hwo3t-primary);
            border-radius: 2px;
        }

        /* Hero Section - Unique Diagonal Split */
        .hwo3t-hero {
            padding-top: 140px;
            padding-bottom: 96px;
            background: radial-gradient(circle at 90% 10%, rgba(238, 65, 52, 0.05) 0%, transparent 40%);
            overflow: hidden;
        }

        .hwo3t-hero-wrapper {
            max-width: var(--hwo3t-container-width);
            margin: 0 auto;
            padding: 0 24px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 48px;
        }

        .hwo3t-hero-content {
            flex: 1;
            min-width: 320px;
        }

        .hwo3t-hero-title {
            font-size: clamp(2.2rem, 4vw + 1rem, 3.5rem);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 24px;
            color: var(--hwo3t-secondary);
            word-break: keep-all;
        }

        .hwo3t-hero-subtitle {
            font-size: clamp(1rem, 1.5vw + 0.5rem, 1.25rem);
            color: var(--hwo3t-text-muted);
            margin-bottom: 40px;
            max-width: 540px;
        }

        .hwo3t-hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .hwo3t-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 16px 36px;
            border-radius: 50px;
            font-weight: 600;
            text-decoration: none;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            cursor: pointer;
            min-width: 0;
        }

        .hwo3t-btn-primary {
            background: var(--hwo3t-accent-gradient);
            color: var(--hwo3t-white);
            box-shadow: 0 8px 20px rgba(238, 65, 52, 0.25);
        }

        .hwo3t-btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 24px rgba(238, 65, 52, 0.35);
        }

        .hwo3t-hero-visual {
            flex: 1;
            min-width: 320px;
            position: relative;
            display: flex;
            justify-content: center;
        }

        /* Abstract CSS Voice Wave */
        .hwo3t-voice-wave {
            width: 100%;
            height: 300px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
        }

        .hwo3t-wave-bar {
            width: 6px;
            background: var(--hwo3t-primary);
            border-radius: 3px;
            animation: hwo3t-wave-anim 1.5s ease-in-out infinite;
            opacity: 0.6;
        }

        @keyframes hwo3t-wave-anim {
            0%, 100% { height: 20px; }
            50% { height: 100px; }
        }

        /* Scenario Section - Grid */
        .hwo3t-scenarios {
            padding: 96px 0;
            background-color: var(--hwo3t-white);
        }

        .hwo3t-section-header {
            max-width: var(--hwo3t-container-width);
            margin: 0 auto 64px;
            padding: 0 24px;
            text-align: center;
        }

        .hwo3t-section-title {
            font-size: clamp(1.8rem, 3vw + 0.5rem, 2.5rem);
            font-weight: 700;
            margin-bottom: 16px;
        }

        .hwo3t-grid {
            max-width: var(--hwo3t-container-width);
            margin: 0 auto;
            padding: 0 24px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 32px;
        }

        .hwo3t-card {
            background: var(--hwo3t-bg-light);
            border-radius: var(--hwo3t-radius);
            padding: 40px;
            transition: all 0.3s ease;
            border: 1px solid rgba(0,0,0,0.03);
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        .hwo3t-card:hover {
            transform: translateY(-10px);
            box-shadow: var(--hwo3t-shadow);
            background: var(--hwo3t-white);
        }

        .hwo3t-card-tag {
            color: var(--hwo3t-primary);
            font-weight: 700;
            font-size: 14px;
            text-transform: uppercase;
            letter-spacing: 1px;
            margin-bottom: 16px;
            display: block;
        }

        .hwo3t-card-title {
            font-size: 22px;
            margin-bottom: 20px;
            color: var(--hwo3t-secondary);
        }

        .hwo3t-capability-list {
            list-style: none;
        }

        .hwo3t-capability-item {
            font-size: 15px;
            color: var(--hwo3t-text-muted);
            margin-bottom: 12px;
            display: flex;
            align-items: flex-start;
        }

        .hwo3t-capability-item::before {
            content: '✓';
            color: var(--hwo3t-primary);
            margin-right: 10px;
            font-weight: bold;
        }

        /* Download Section - High Contrast */
        .hwo3t-download-area {
            padding: 96px 0;
            background: var(--hwo3t-secondary);
            color: var(--hwo3t-white);
            text-align: center;
        }

        .hwo3t-download-wrapper {
            max-width: var(--hwo3t-container-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        .hwo3t-download-platforms {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 32px;
            margin-top: 48px;
        }

        .hwo3t-platform-box {
            flex: 1;
            min-width: 240px;
            background: rgba(255,255,255,0.05);
            padding: 40px;
            border-radius: var(--hwo3t-radius);
            border: 1px solid rgba(255,255,255,0.1);
            transition: all 0.3s ease;
        }

        .hwo3t-platform-box:hover {
            background: rgba(255,255,255,0.1);
            border-color: var(--hwo3t-primary);
        }

        /* Dynamic Content Section */
        .hwo3t-news-section {
            padding: 96px 0;
        }

        /* Footer */
        .hwo3t-footer {
            background: #f1f1f1;
            padding: 64px 24px 32px;
            border-top: 1px solid rgba(0,0,0,0.05);
        }

        .hwo3t-footer-content {
            max-width: var(--hwo3t-container-width);
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 48px;
        }

        .hwo3t-footer-brand {
            flex: 1;
            min-width: 280px;
        }

        .hwo3t-footer-name {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--hwo3t-primary);
        }

        .hwo3t-footer-slogan {
            font-size: 14px;
            color: var(--hwo3t-text-muted);
            max-width: 300px;
        }

        .hwo3t-footer-links {
            flex: 2;
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            min-width: 320px;
        }

        .hwo3t-footer-col h4 {
            margin-bottom: 20px;
            font-size: 16px;
        }

        .hwo3t-footer-col ul {
            list-style: none;
        }

        .hwo3t-footer-col li {
            margin-bottom: 10px;
        }

        .hwo3t-footer-col a {
            text-decoration: none;
            color: var(--hwo3t-text-muted);
            font-size: 14px;
            transition: color 0.3s ease;
        }

        .hwo3t-footer-col a:hover {
            color: var(--hwo3t-primary);
        }

        .hwo3t-copyright {
            max-width: var(--hwo3t-container-width);
            margin: 48px auto 0;
            padding-top: 24px;
            border-top: 1px solid rgba(0,0,0,0.05);
            text-align: center;
            font-size: 13px;
            color: var(--hwo3t-text-muted);
        }

        /* Responsive Breakpoints */
        @media (max-width: 768px) {
            .hwo3t-nav-container {
                justify-content: center;
                padding: 12px;
            }
            .hwo3t-menu {
                justify-content: center;
                gap: 12px;
                margin-top: 16px;
            }
            .hwo3t-hero-content {
                text-align: center;
            }
            .hwo3t-hero-actions {
                justify-content: center;
            }
            .hwo3t-hero-subtitle {
                margin-left: auto;
                margin-right: auto;
            }
            .hwo3t-hero-visual {
                display: none; /* Hide visual on small screens to focus on CTA */
            }
            .hwo3t-grid {
                grid-template-columns: 1fr;
            }
        }