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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
            line-height: 1.6;
            color: #333;
            background-color: #f8f9fa;
        }

        /* Navigation */
        .xcw5-navbar {
            background-color: #ffffff;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .xcw5-nav-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 70px;
        }

        .xcw5-logo {
            display: flex;
            align-items: center;
            font-size: 24px;
            font-weight: bold;
            color: #0088cc;
            text-decoration: none;
        }

        .xcw5-logo img {
            height: 40px;
            margin-right: 10px;
        }

        .xcw5-nav-menu {
            display: flex;
            gap: 30px;
            align-items: center;
        }

        .xcw5-nav-link {
            text-decoration: none;
            color: #333;
            font-size: 14px;
            font-weight: 500;
            transition: color 0.3s ease;
        }

        .xcw5-nav-link:hover {
            color: #0088cc;
        }

        /* Hero Section */
        .xcw5-hero {
            background: linear-gradient(135deg, #0088cc 0%, #00a8e8 100%);
            color: white;
            padding: 80px 20px;
            text-align: center;
        }

        .xcw5-hero-container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .xcw5-hero-title {
            font-size: 48px;
            font-weight: 700;
            margin-bottom: 20px;
            line-height: 1.2;
        }

        .xcw5-hero-desc {
            font-size: 18px;
            margin-bottom: 30px;
            opacity: 0.95;
            max-width: 600px;
            margin-left: auto;
            margin-right: auto;
        }

        .xcw5-cta-button {
            display: inline-block;
            background-color: #ffffff;
            color: #0088cc;
            padding: 14px 32px;
            border-radius: 6px;
            text-decoration: none;
            font-weight: 600;
            font-size: 16px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        }

        .xcw5-cta-button:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
        }

        /* Main Content */
        .xcw5-main {
            max-width: 1200px;
            margin: 0 auto;
            padding: 60px 20px;
        }

        .xcw5-content-intro {
            background: white;
            padding: 40px;
            border-radius: 8px;
            margin-bottom: 60px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
        }

        .xcw5-intro-title {
            font-size: 32px;
            color: #0088cc;
            margin-bottom: 20px;
            font-weight: 700;
        }

        .xcw5-intro-text {
            font-size: 16px;
            line-height: 1.8;
            color: #555;
            margin-bottom: 15px;
        }

        /* Tutorial Sections */
        .xcw5-tutorial-section {
            background: white;
            padding: 40px;
            border-radius: 8px;
            margin-bottom: 30px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
        }

        .xcw5-section-title {
            font-size: 28px;
            color: #0088cc;
            margin-bottom: 25px;
            padding-bottom: 15px;
            border-bottom: 3px solid #0088cc;
            font-weight: 700;
        }

        .xcw5-step-container {
            margin-bottom: 30px;
        }

        .xcw5-step-header {
            display: flex;
            align-items: center;
            margin-bottom: 15px;
        }

        .xcw5-step-number {
            background-color: #0088cc;
            color: white;
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 18px;
            margin-right: 15px;
            flex-shrink: 0;
        }

        .xcw5-step-title {
            font-size: 20px;
            font-weight: 600;
            color: #333;
        }

        .xcw5-step-content {
            font-size: 15px;
            line-height: 1.8;
            color: #666;
            margin-left: 55px;
            margin-bottom: 15px;
        }

        .xcw5-highlight-box {
            background-color: #e8f4f8;
            border-left: 4px solid #0088cc;
            padding: 20px;
            margin: 20px 0;
            border-radius: 4px;
            font-size: 15px;
            color: #555;
        }

        .xcw5-highlight-box strong {
            color: #0088cc;
        }

        /* Features Grid */
        .xcw5-features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 25px;
            margin: 30px 0;
        }

        .xcw5-feature-card {
            background: white;
            padding: 25px;
            border-radius: 8px;
            border: 1px solid #e0e0e0;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .xcw5-feature-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 16px rgba(0, 136, 204, 0.15);
        }

        .xcw5-feature-icon {
            font-size: 36px;
            margin-bottom: 15px;
        }

        .xcw5-feature-title {
            font-size: 18px;
            font-weight: 600;
            color: #0088cc;
            margin-bottom: 10px;
        }

        .xcw5-feature-desc {
            font-size: 14px;
            color: #666;
            line-height: 1.6;
        }

        /* Tips Section */
        .xcw5-tips-section {
            background: linear-gradient(135deg, #f0f7ff 0%, #e8f4f8 100%);
            padding: 40px;
            border-radius: 8px;
            margin: 40px 0;
        }

        .xcw5-tips-title {
            font-size: 24px;
            color: #0088cc;
            margin-bottom: 20px;
            font-weight: 700;
        }

        .xcw5-tip-item {
            margin-bottom: 15px;
            padding-left: 30px;
            position: relative;
            font-size: 15px;
            color: #555;
            line-height: 1.6;
        }

        .xcw5-tip-item:before {
            content: "✓";
            position: absolute;
            left: 0;
            color: #0088cc;
            font-weight: bold;
            font-size: 18px;
        }

        /* FAQ Section */
        .xcw5-faq-section {
            margin: 40px 0;
        }

        .xcw5-faq-item {
            background: white;
            margin-bottom: 15px;
            border-radius: 6px;
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
        }

        .xcw5-faq-question {
            background-color: #f5f5f5;
            padding: 20px;
            cursor: pointer;
            font-weight: 600;
            color: #333;
            display: flex;
            justify-content: space-between;
            align-items: center;
            transition: background-color 0.3s ease;
        }

        .xcw5-faq-question:hover {
            background-color: #e8f4f8;
        }

        .xcw5-faq-toggle {
            color: #0088cc;
            font-size: 20px;
            font-weight: bold;
        }

        .xcw5-faq-answer {
            padding: 20px;
            color: #666;
            line-height: 1.8;
            display: none;
            border-top: 1px solid #e0e0e0;
            font-size: 15px;
        }

        .xcw5-faq-answer.active {
            display: block;
        }

        /* CTA Section */
        .xcw5-cta-section {
            background: linear-gradient(135deg, #0088cc 0%, #00a8e8 100%);
            color: white;
            padding: 60px 20px;
            text-align: center;
            margin: 60px 0;
            border-radius: 8px;
        }

        .xcw5-cta-title {
            font-size: 32px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .xcw5-cta-desc {
            font-size: 16px;
            margin-bottom: 30px;
            opacity: 0.95;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }

        .xcw5-cta-button-white {
            display: inline-block;
            background-color: #ffffff;
            color: #0088cc;
            padding: 14px 32px;
            border-radius: 6px;
            text-decoration: none;
            font-weight: 600;
            font-size: 16px;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
        }

        .xcw5-cta-button-white:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
        }

        /* Footer */
        .xcw5-footer {
            background-color: #1a1a1a;
            color: #fff;
            padding: 50px 20px 20px;
            margin-top: 60px;
        }

        .xcw5-footer-container {
            max-width: 1200px;
            margin: 0 auto;
        }

        .xcw5-footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 30px;
            margin-bottom: 40px;
        }

        .xcw5-footer-section-title {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 15px;
            color: #0088cc;
        }

        .xcw5-footer-link {
            display: block;
            color: #ccc;
            text-decoration: none;
            font-size: 14px;
            margin-bottom: 10px;
            transition: color 0.3s ease;
        }

        .xcw5-footer-link:hover {
            color: #0088cc;
        }

        .xcw5-footer-bottom {
            border-top: 1px solid #333;
            padding-top: 30px;
            text-align: center;
            color: #999;
            font-size: 14px;
        }

        /* Responsive Design */
        @media (max-width: 768px) {
            .xcw5-hero-title {
                font-size: 32px;
            }

            .xcw5-hero-desc {
                font-size: 16px;
            }

            .xcw5-nav-menu {
                gap: 15px;
            }

            .xcw5-nav-link {
                font-size: 12px;
            }

            .xcw5-intro-title,
            .xcw5-section-title {
                font-size: 24px;
            }

            .xcw5-step-title {
                font-size: 18px;
            }

            .xcw5-features-grid {
                grid-template-columns: 1fr;
            }

            .xcw5-cta-title {
                font-size: 24px;
            }

            .xcw5-main {
                padding: 30px 15px;
            }

            .xcw5-tutorial-section,
            .xcw5-content-intro {
                padding: 25px;
            }
        }

        @media (max-width: 480px) {
            .xcw5-nav-container {
                height: auto;
                padding: 10px 15px;
                flex-wrap: wrap;
                gap: 15px;
            }

            .xcw5-nav-menu {
                width: 100%;
                flex-wrap: wrap;
                justify-content: center;
                gap: 10px;
            }

            .xcw5-hero-title {
                font-size: 24px;
            }

            .xcw5-logo {
                font-size: 18px;
            }

            .xcw5-logo img {
                height: 30px;
            }
        }