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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #fff;
        }

        .xiqi-header {
            background: #fff;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .xiqi-nav-container {
            max-width: 1200px;
            margin: 0 auto;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }

        .xiqi-logo-wrapper img {
            height: 40px;
            width: auto;
        }

        .xiqi-nav-menu {
            display: flex;
            gap: 30px;
            align-items: center;
        }

        .xiqi-nav-link {
            text-decoration: none;
            color: #5f6368;
            font-size: 14px;
            font-weight: 500;
            transition: color 0.3s ease;
            padding: 8px 0;
        }

        .xiqi-nav-link:hover {
            color: #1a73e8;
        }

        .xiqi-hero-section {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: #fff;
            padding: 100px 20px;
            text-align: center;
        }

        .xiqi-hero-content {
            max-width: 900px;
            margin: 0 auto;
        }

        .xiqi-main-heading {
            font-size: 48px;
            font-weight: 700;
            margin-bottom: 20px;
            letter-spacing: -1px;
        }

        .xiqi-hero-description {
            font-size: 20px;
            margin-bottom: 40px;
            opacity: 0.95;
            line-height: 1.8;
        }

        .xiqi-cta-button {
            display: inline-block;
            background: #fff;
            color: #667eea;
            padding: 16px 40px;
            border-radius: 50px;
            text-decoration: none;
            font-size: 18px;
            font-weight: 600;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            box-shadow: 0 4px 15px rgba(0,0,0,0.2);
        }

        .xiqi-cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(0,0,0,0.3);
        }

        .xiqi-content-section {
            max-width: 1200px;
            margin: 80px auto;
            padding: 0 20px;
        }

        .xiqi-section-title {
            font-size: 36px;
            color: #202124;
            margin-bottom: 50px;
            text-align: center;
            font-weight: 600;
        }

        .xiqi-features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 40px;
            margin-bottom: 80px;
        }

        .xiqi-feature-card {
            background: #f8f9fa;
            padding: 40px 30px;
            border-radius: 12px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .xiqi-feature-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
        }

        .xiqi-feature-icon {
            font-size: 48px;
            margin-bottom: 20px;
        }

        .xiqi-feature-title {
            font-size: 24px;
            color: #202124;
            margin-bottom: 15px;
            font-weight: 600;
        }

        .xiqi-feature-text {
            color: #5f6368;
            font-size: 16px;
            line-height: 1.7;
        }

        .xiqi-about-section {
            background: #f8f9fa;
            padding: 80px 20px;
        }

        .xiqi-about-container {
            max-width: 1000px;
            margin: 0 auto;
        }

        .xiqi-about-title {
            font-size: 36px;
            color: #202124;
            margin-bottom: 30px;
            text-align: center;
            font-weight: 600;
        }

        .xiqi-about-content {
            font-size: 18px;
            color: #5f6368;
            line-height: 1.8;
            margin-bottom: 20px;
            text-align: justify;
        }

        .xiqi-stats-section {
            max-width: 1200px;
            margin: 80px auto;
            padding: 0 20px;
        }

        .xiqi-stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            text-align: center;
        }

        .xiqi-stat-item {
            padding: 30px;
        }

        .xiqi-stat-number {
            font-size: 48px;
            font-weight: 700;
            color: #667eea;
            margin-bottom: 10px;
        }

        .xiqi-stat-label {
            font-size: 18px;
            color: #5f6368;
        }

        .xiqi-cta-section {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: #fff;
            padding: 80px 20px;
            text-align: center;
        }

        .xiqi-cta-container {
            max-width: 800px;
            margin: 0 auto;
        }

        .xiqi-cta-title {
            font-size: 40px;
            margin-bottom: 20px;
            font-weight: 700;
        }

        .xiqi-cta-text {
            font-size: 20px;
            margin-bottom: 40px;
            opacity: 0.95;
        }

        .xiqi-cta-button-secondary {
            display: inline-block;
            background: #fff;
            color: #667eea;
            padding: 16px 40px;
            border-radius: 50px;
            text-decoration: none;
            font-size: 18px;
            font-weight: 600;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            box-shadow: 0 4px 15px rgba(0,0,0,0.2);
        }

        .xiqi-cta-button-secondary:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 20px rgba(0,0,0,0.3);
        }

        .xiqi-footer {
            background: #202124;
            color: #fff;
            padding: 60px 20px 30px;
        }

        .xiqi-footer-container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .xiqi-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }

        .xiqi-footer-column-title {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 20px;
        }

        .xiqi-footer-link {
            display: block;
            color: #bdc1c6;
            text-decoration: none;
            margin-bottom: 12px;
            font-size: 14px;
            transition: color 0.3s ease;
        }

        .xiqi-footer-link:hover {
            color: #fff;
        }

        .xiqi-footer-text {
            color: #bdc1c6;
            font-size: 14px;
            line-height: 1.6;
        }

        .xiqi-footer-bottom {
            border-top: 1px solid #3c4043;
            padding-top: 30px;
            text-align: center;
            color: #bdc1c6;
            font-size: 14px;
        }

        .xiqi-contact-info {
            margin-top: 20px;
        }

        .xiqi-contact-item {
            margin-bottom: 10px;
            color: #bdc1c6;
            font-size: 14px;
        }

        @media (max-width: 768px) {
            .xiqi-nav-menu {
                flex-direction: column;
                gap: 15px;
            }

            .xiqi-main-heading {
                font-size: 32px;
            }

            .xiqi-hero-description {
                font-size: 16px;
            }

            .xiqi-section-title {
                font-size: 28px;
            }

            .xiqi-features-grid {
                grid-template-columns: 1fr;
            }

            .xiqi-cta-title {
                font-size: 28px;
            }
        }