:root {
            --ac83o-primary: #0052D9;
            --ac83o-secondary: #2B65D9;
            --ac83o-accent: #00D1FF;
            --ac83o-bg-light: #F5F7FA;
            --ac83o-text-dark: #1D2129;
            --ac83o-text-muted: #4E5969;
            --ac83o-white: #FFFFFF;
            --ac83o-gradient-main: linear-gradient(135deg, #0052D9 0%, #00D1FF 100%);
            --ac83o-shadow: 0 8px 30px rgba(0, 82, 217, 0.1);
            --ac83o-radius: 16px;
        }

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

        body {
            font-family: "Inter", "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--ac83o-bg-light);
            color: var(--ac83o-text-dark);
            line-height: 1.6;
            overflow-x: hidden;
        }

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

        .ac83o-fluid-h1 { font-size: clamp(2rem, 5vw + 1rem, 4rem); font-weight: 800; }
        .ac83o-fluid-h2 { font-size: clamp(1.5rem, 3vw + 1rem, 2.5rem); font-weight: 700; }
        .ac83o-fluid-p { font-size: clamp(1rem, 1vw + 0.5rem, 1.25rem); line-height: 1.8; word-break: break-word; }

        /* Navigation */
        .ac83o-nav-container {
            position: fixed;
            top: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.85);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
        }

        .ac83o-nav-inner {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 24px;
            height: 72px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
        }

        .ac83o-logo {
            display: flex;
            align-items: center;
            min-width: 0;
        }

        .ac83o-logo img {
            height: 32px;
            width: auto;
        }

        .ac83o-menu {
            display: flex;
            list-style: none;
            gap: 8px;
            flex-wrap: wrap;
            min-width: 0;
        }

        .ac83o-menu li a {
            text-decoration: none;
            color: var(--ac83o-text-muted);
            padding: 8px 16px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 500;
            transition: all 0.2s;
        }

        .ac83o-menu li a:hover {
            color: var(--ac83o-primary);
            background: rgba(0, 82, 217, 0.05);
        }

        .ac83o-menu li a.active {
            color: var(--ac83o-white);
            background: var(--ac83o-primary);
        }

        /* Hero Section - Unique Diagonal Layout */
        .ac83o-hero {
            padding: 160px 24px 100px;
            position: relative;
            background: #fff;
            overflow: hidden;
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
        }

        .ac83o-hero-content {
            max-width: 900px;
            text-align: center;
            position: relative;
            z-index: 2;
            min-width: 0;
        }

        .ac83o-hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(0, 82, 217, 0.1);
            color: var(--ac83o-primary);
            border-radius: 50px;
            font-weight: 600;
            margin-bottom: 24px;
            font-size: 14px;
        }

        .ac83o-hero h1 {
            color: var(--ac83o-text-dark);
            margin-bottom: 24px;
            background: linear-gradient(to right, #1D2129, #0052D9);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .ac83o-hero p {
            color: var(--ac83o-text-muted);
            margin-bottom: 40px;
        }

        .ac83o-cta-group {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
            min-width: 0;
        }

        .ac83o-btn-primary {
            background: var(--ac83o-gradient-main);
            color: white;
            padding: 16px 40px;
            border-radius: 12px;
            text-decoration: none;
            font-weight: 600;
            box-shadow: 0 10px 20px rgba(0, 82, 217, 0.2);
            transition: transform 0.3s, box-shadow 0.3s;
        }

        .ac83o-btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 15px 30px rgba(0, 82, 217, 0.3);
        }

        /* Grid Modules */
        .ac83o-section {
            padding: 96px 24px;
            max-width: 1400px;
            margin: 0 auto;
        }

        .ac83o-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
            gap: 32px;
            margin-top: 64px;
        }

        .ac83o-card {
            background: var(--ac83o-white);
            border-radius: var(--ac83o-radius);
            padding: 48px;
            border: 1px solid rgba(0, 0, 0, 0.03);
            transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
            display: flex;
            flex-direction: column;
            min-width: 0;
        }

        .ac83o-card:hover {
            transform: translateY(-10px);
            box-shadow: var(--ac83o-shadow);
        }

        .ac83o-card-icon {
            width: 64px;
            height: 64px;
            background: var(--ac83o-bg-light);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 32px;
            margin-bottom: 32px;
        }

        .ac83o-card h3 {
            margin-bottom: 16px;
            color: var(--ac83o-primary);
        }

        .ac83o-card ul {
            list-style: none;
            margin: 24px 0;
        }

        .ac83o-card li {
            position: relative;
            padding-left: 24px;
            margin-bottom: 12px;
            color: var(--ac83o-text-muted);
            font-size: 15px;
        }

        .ac83o-card li::before {
            content: "•";
            position: absolute;
            left: 0;
            color: var(--ac83o-primary);
            font-weight: bold;
        }

        .ac83o-metric {
            margin-top: auto;
            padding-top: 24px;
            border-top: 1px dashed #eee;
            font-size: 13px;
            color: var(--ac83o-primary);
            font-weight: 500;
        }

        /* Support Flow Section */
        .ac83o-flow-container {
            background: var(--ac83o-text-dark);
            color: white;
            border-radius: 32px;
            padding: 80px 48px;
            margin: 64px 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
        }

        .ac83o-flow-header {
            flex: 1 1 300px;
            min-width: 0;
        }

        .ac83o-flow-content {
            flex: 2 1 600px;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 24px;
            min-width: 0;
        }

        .ac83o-step {
            background: rgba(255, 255, 255, 0.05);
            padding: 32px;
            border-radius: 20px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            min-width: 0;
        }

        .ac83o-step-number {
            font-size: 40px;
            font-weight: 800;
            opacity: 0.2;
            margin-bottom: 16px;
            display: block;
        }

        .ac83o-step h4 {
            font-size: 20px;
            margin-bottom: 8px;
            color: var(--ac83o-accent);
        }

        /* Latest News - Dynamic */
        .ac83o-news-section {
            background: #fff;
            padding: 96px 24px;
        }

        .ac83o-news-title {
            text-align: center;
            margin-bottom: 64px;
        }

        .ac83o-news-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            justify-content: center;
        }

        .ac83o-news-item {
            flex: 1 1 300px;
            max-width: 400px;
            border-bottom: 2px solid var(--ac83o-bg-light);
            padding-bottom: 24px;
            min-width: 0;
        }

        .ac83o-news-item span {
            font-size: 13px;
            color: var(--ac83o-primary);
            font-weight: 600;
        }

        .ac83o-news-item h4 {
            margin: 8px 0;
            font-size: 18px;
        }

        /* Footer */
        .ac83o-footer {
            background: var(--ac83o-bg-light);
            padding: 80px 24px 40px;
            border-top: 1px solid #eee;
        }

        .ac83o-footer-inner {
            max-width: 1400px;
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 48px;
        }

        .ac83o-footer-brand {
            flex: 1 1 300px;
            min-width: 0;
        }

        .ac83o-footer-brand h2 {
            font-size: 24px;
            margin-bottom: 16px;
            color: var(--ac83o-primary);
        }

        .ac83o-footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 64px;
            flex: 2 1 600px;
            min-width: 0;
        }

        .ac83o-link-group h5 {
            margin-bottom: 24px;
            font-size: 16px;
            color: var(--ac83o-text-dark);
        }

        .ac83o-link-group ul {
            list-style: none;
        }

        .ac83o-link-group li {
            margin-bottom: 12px;
        }

        .ac83o-link-group a {
            text-decoration: none;
            color: var(--ac83o-text-muted);
            font-size: 14px;
            transition: color 0.2s;
        }

        .ac83o-link-group a:hover {
            color: var(--ac83o-primary);
        }

        .ac83o-copyright {
            width: 100%;
            text-align: center;
            margin-top: 64px;
            padding-top: 32px;
            border-top: 1px solid #e5e7eb;
            color: var(--ac83o-text-muted);
            font-size: 14px;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .ac83o-nav-inner { height: auto; padding: 16px 24px; }
            .ac83o-menu { display: none; } /* Simplified for mobile demo */
            .ac83o-hero { padding-top: 120px; }
            .ac83o-grid { grid-template-columns: 1fr; }
            .ac83o-flow-container { padding: 40px 24px; }
            .ac83o-card { padding: 32px; }
        }

        /* Design Elements */
        .ac83o-blob {
            position: absolute;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(0, 82, 217, 0.05) 0%, rgba(0, 209, 255, 0.05) 100%);
            filter: blur(80px);
            z-index: 1;
            border-radius: 50%;
        }
        .ac83o-blob-1 { top: -200px; right: -200px; }
        .ac83o-blob-2 { bottom: -100px; left: -200px; }