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

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            min-height: 100vh;
            color: #2d3748;
            line-height: 1.6;
        }

        .container {
            max-width: 900px;
            margin: 0 auto;
            padding: 0 20px;
        }

        header {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 20px 0;
            box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
            position: sticky;
            top: 0;
            z-index: 100;
        }

        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 15px;
        }

        .logo {
            font-size: 24px;
            font-weight: 700;
            text-decoration: none;
            color: white;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .logo i {
            font-size: 28px;
        }

        nav ul {
            display: flex;
            list-style: none;
            gap: 25px;
        }

        nav a {
            color: white;
            text-decoration: none;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .breadcrumb {
            background: white;
            padding: 15px 0;
            border-bottom: 1px solid #e2e8f0;
        }

        .breadcrumb-list {
            display: flex;
            align-items: center;
            gap: 10px;
            list-style: none;
            list-style-type: none;
            margin: 0;
            padding: 0;
            padding-left: 0;
            font-size: 14px;
            color: #718096;
        }

        .breadcrumb-list li {
            list-style: none;
            list-style-type: none;
            display: flex;
            align-items: center;
        }

        .breadcrumb-list a {
            color: #667eea;
            text-decoration: none;
        }

        .breadcrumb-list li::after {
            content: '/';
            margin-left: 10px;
            color: #cbd5e0;
        }

        .breadcrumb-list li:last-child::after {
            display: none;
        }

        .main-content {
            padding: 40px 0;
        }

        .page-container {
            background: white;
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
        }

        .page-header {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            padding: 40px;
            text-align: center;
        }

        .page-title {
            font-size: 32px;
            font-weight: 700;
            color: white;
            margin-bottom: 10px;
        }

        .page-content {
            padding: 40px;
            font-size: 16px;
            line-height: 1.8;
            color: #4a5568;
        }

        .page-content h2 {
            font-size: 24px;
            color: #2d3748;
            margin: 30px 0 15px;
            padding-bottom: 10px;
            border-bottom: 2px solid #667eea;
        }

        .page-content h2:first-child {
            margin-top: 0;
        }

        .page-content h3 {
            font-size: 20px;
            color: #2d3748;
            margin: 25px 0 10px;
        }

        .page-content p {
            margin-bottom: 15px;
        }

        .page-content ul,
        .page-content ol {
            margin: 15px 0;
            padding-left: 25px;
        }

        .page-content li {
            margin-bottom: 8px;
        }

        .page-content a {
            color: #667eea;
            text-decoration: none;
        }

        .page-content a:hover {
            text-decoration: underline;
        }

        .back-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: #667eea;
            text-decoration: none;
            font-weight: 600;
            margin-bottom: 20px;
        }

        .back-link:hover {
            color: #764ba2;
        }

        footer {
            background: #2d3748;
            color: #a0aec0;
            padding: 40px 0 20px;
            margin-top: 60px;
        }

        .footer-content {
            text-align: center;
        }

        .footer-links {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .footer-links a {
            color: #a0aec0;
            text-decoration: none;
        }

        .footer-links a:hover {
            color: white;
        }

        .copyright {
            font-size: 14px;
            color: #718096;
        }

        @media (max-width: 768px) {
            .page-header,
            .page-content {
                padding: 25px 20px;
            }

            .page-title {
                font-size: 24px;
            }

            .page-content h2 {
                font-size: 20px;
            }

            .header-content {
                flex-direction: column;
                text-align: center;
            }

            nav ul {
                flex-wrap: wrap;
                justify-content: center;
            }
        }