:root {
            --x7bg-primary: #ff4d2d;
            --x7bg-primary-hover: #e63e1d;
            --x7bg-secondary: #2f54eb;
            --x7bg-bg-light: #ffffff;
            --x7bg-bg-soft: #f8f9fa;
            --x7bg-text-main: #1d1d1f;
            --x7bg-text-muted: #86868b;
            --x7bg-safe-green: #34c759;
            --x7bg-container-width: 1100px;
            --x7bg-transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background-color: var(--x7bg-bg-light);
            color: var(--x7bg-text-main);
            line-height: 1.6;
            overflow-x: hidden;
            word-break: break-word;
        }

        /* Navigation */
        .x7bg-header {
            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: var(--x7bg-transition);
        }

        .x7bg-nav-container {
            max-width: var(--x7bg-container-width);
            margin: 0 auto;
            padding: 0 24px;
            height: 72px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
        }

        .x7bg-logo {
            flex: 0 0 auto;
            min-width: 0;
            display: flex;
            align-items: center;
        }

        .x7bg-logo img {
            height: 32px;
            width: auto;
        }

        .x7bg-nav-links {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            list-style: none;
            min-width: 0;
        }

        .x7bg-nav-links a {
            text-decoration: none;
            color: var(--x7bg-text-main);
            font-size: 14px;
            font-weight: 500;
            transition: color 0.3s;
        }

        .x7bg-nav-links a:hover {
            color: var(--x7bg-primary);
        }

        /* Hero Section - Unique Card Style */
        .x7bg-hero {
            padding: 160px 24px 80px;
            background: radial-gradient(circle at 90% 10%, #fff5f2 0%, #ffffff 50%);
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            text-align: center;
        }

        .x7bg-hero-content {
            max-width: 800px;
            min-width: 0;
        }

        .x7bg-hero-tag {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(255, 77, 45, 0.1);
            color: var(--x7bg-primary);
            border-radius: 100px;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 24px;
        }

        .x7bg-hero-title {
            font-size: clamp(2.5rem, 5vw + 1rem, 4rem);
            line-height: 1.1;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 24px;
            color: #111;
        }

        .x7bg-hero-subtitle {
            font-size: clamp(1.1rem, 2vw + 0.5rem, 1.4rem);
            color: var(--x7bg-text-muted);
            margin-bottom: 48px;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        /* Security Verification Section */
        .x7bg-safety-check {
            padding: 80px 24px;
            background: #fafafa;
        }

        .x7bg-section-inner {
            max-width: var(--x7bg-container-width);
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            align-items: center;
        }

        .x7bg-card-main {
            flex: 1;
            min-width: 320px;
            background: #fff;
            padding: 48px;
            border-radius: 32px;
            box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.05);
            border: 1px solid rgba(0,0,0,0.03);
        }

        .x7bg-status-badge {
            display: flex;
            align-items: center;
            gap: 12px;
            font-weight: 700;
            color: var(--x7bg-safe-green);
            margin-bottom: 24px;
        }

        .x7bg-status-dot {
            width: 12px;
            height: 12px;
            background: var(--x7bg-safe-green);
            border-radius: 50%;
            box-shadow: 0 0 10px var(--x7bg-safe-green);
        }

        .x7bg-feature-text {
            margin-bottom: 32px;
        }

        .x7bg-feature-text h2 {
            font-size: 28px;
            margin-bottom: 16px;
        }

        .x7bg-feature-text p {
            font-size: 17px;
            color: var(--x7bg-text-muted);
            margin-bottom: 24px;
            line-height: 1.8;
        }

        /* Efficiency Grid */
        .x7bg-efficiency {
            padding: 96px 24px;
            background: #fff;
        }

        .x7bg-grid {
            max-width: var(--x7bg-container-width);
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
        }

        .x7bg-eff-card {
            background: var(--x7bg-bg-soft);
            padding: 40px;
            border-radius: 24px;
            transition: var(--x7bg-transition);
            display: flex;
            flex-direction: column;
            border: 1px solid transparent;
        }

        .x7bg-eff-card:hover {
            transform: translateY(-8px);
            border-color: rgba(255, 77, 45, 0.2);
            background: #fff;
            box-shadow: 0 20px 40px rgba(0,0,0,0.04);
        }

        .x7bg-eff-scenario {
            font-weight: 700;
            font-size: 20px;
            margin-bottom: 16px;
            color: var(--x7bg-primary);
        }

        .x7bg-eff-tools {
            list-style: none;
            flex-grow: 1;
        }

        .x7bg-eff-tools li {
            padding: 12px 0;
            border-bottom: 1px solid rgba(0,0,0,0.05);
            font-size: 15px;
            color: var(--x7bg-text-main);
        }

        .x7bg-eff-boost {
            margin-top: 24px;
            font-size: 32px;
            font-weight: 800;
            color: var(--x7bg-text-main);
        }

        .x7bg-eff-boost span {
            font-size: 14px;
            color: var(--x7bg-text-muted);
            font-weight: 400;
            display: block;
        }

        /* News Section */
        .x7bg-news {
            padding: 80px 24px;
            background: #111;
            color: #fff;
        }

        .x7bg-news-container {
            max-width: var(--x7bg-container-width);
            margin: 0 auto;
        }

        .x7bg-news-header {
            margin-bottom: 48px;
            text-align: center;
        }

        .x7bg-news-header h2 {
            font-size: 32px;
            margin-bottom: 12px;
        }

        /* Footer */
        .x7bg-footer {
            padding: 80px 24px;
            background: #f8f9fa;
            border-top: 1px solid #eee;
        }

        .x7bg-footer-inner {
            max-width: var(--x7bg-container-width);
            margin: 0 auto;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 48px;
        }

        .x7bg-footer-brand {
            flex: 0 0 240px;
            min-width: 0;
        }

        .x7bg-brand-name {
            font-size: 20px;
            font-weight: 800;
            color: var(--x7bg-text-main);
            margin-bottom: 16px;
        }

        .x7bg-footer-links {
            flex: 1;
            display: flex;
            flex-wrap: wrap;
            gap: 48px;
            min-width: 0;
        }

        .x7bg-footer-col h4 {
            font-size: 14px;
            margin-bottom: 20px;
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        .x7bg-footer-col ul {
            list-style: none;
        }

        .x7bg-footer-col li {
            margin-bottom: 10px;
        }

        .x7bg-footer-col a {
            text-decoration: none;
            color: var(--x7bg-text-muted);
            font-size: 14px;
            transition: color 0.3s;
        }

        .x7bg-footer-col a:hover {
            color: var(--x7bg-primary);
        }

        .x7bg-btn {
            display: inline-block;
            padding: 16px 36px;
            background: var(--x7bg-primary);
            color: #fff;
            text-decoration: none;
            border-radius: 12px;
            font-weight: 600;
            transition: var(--x7bg-transition);
            border: none;
            cursor: pointer;
        }

        .x7bg-btn:hover {
            background: var(--x7bg-primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(255, 77, 45, 0.2);
        }

        /* Responsive */
        @media (max-width: 768px) {
            .x7bg-nav-links {
                display: none; /* In real design, add mobile menu */
            }
            .x7bg-hero {
                padding-top: 120px;
            }
            .x7bg-card-main {
                padding: 32px;
            }
            .x7bg-footer-inner {
                flex-direction: column;
            }
        }