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

        body {
            font-family: 'Source Sans Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
            font-size: 16px;
            line-height: 1.7;
            color: #767676;
            background-color: #fff;
        }

        header {
            background-color: rgba(0, 0, 0, 0.9);
            padding: 20px 0;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
        }

        .header-container {
            max-width: 1170px;
            margin: 0 auto;
            padding: 0 15px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .site-logo {
            max-height: 60px;
            width: auto;
        }

        nav ul {
            list-style: none;
            display: flex;
            gap: 30px;
            margin: 0;
            padding: 0;
        }

        nav ul li a {
            color: #fff;
            text-decoration: none;
            font-family: 'Raleway', sans-serif;
            font-weight: 500;
            font-size: 14px;
            transition: color 0.3s;
        }

        nav ul li a:hover {
            color: #d65050;
        }

        .hero-section {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            padding: 80px 0;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.3);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 1170px;
            margin: 0 auto;
            padding: 0 15px;
        }

        h1 {
            font-family: 'Raleway', sans-serif;
            font-size: 52px;
            line-height: 1.2;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
        }

        .main-container {
            max-width: 1170px;
            margin: 0 auto;
            padding: 60px 15px;
        }

        article {
            background: #fff;
            padding: 40px;
            margin-bottom: 50px;
            border-radius: 3px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
        }

        article h2 {
            font-family: 'Raleway', sans-serif;
            font-size: 32px;
            color: #443f3f;
            font-weight: 600;
            margin: 30px 0 20px 0;
            line-height: 1.3;
        }

        article h3 {
            font-family: 'Raleway', sans-serif;
            font-size: 24px;
            color: #443f3f;
            font-weight: 600;
            margin: 25px 0 15px 0;
            line-height: 1.3;
        }

        article h4 {
            font-family: 'Raleway', sans-serif;
            font-size: 20px;
            color: #443f3f;
            font-weight: 600;
            margin: 20px 0 12px 0;
            line-height: 1.3;
        }

        article p {
            margin-bottom: 24px;
            color: #767676;
            font-size: 16px;
            line-height: 1.8;
        }

        article a {
            color: #d65050;
            text-decoration: none;
            transition: color 0.3s;
        }

        article a:hover {
            color: #443f3f;
        }

        .transition-section {
            background: #f7f7f7;
            padding: 40px;
            margin-bottom: 50px;
            border-left: 4px solid #d65050;
            border-radius: 3px;
        }

        .transition-section p {
            margin-bottom: 15px;
            color: #5e5e5e;
            font-size: 16px;
            line-height: 1.7;
        }

        .links-section {
            background: #fff;
            padding: 50px 40px;
            border-radius: 3px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
        }

        .links-section h2 {
            font-family: 'Raleway', sans-serif;
            font-size: 32px;
            color: #443f3f;
            font-weight: 600;
            text-align: center;
            margin-bottom: 40px;
            position: relative;
            padding-bottom: 15px;
        }

        .links-section h2::after {
            content: '';
            position: absolute;
            left: 50%;
            bottom: 0;
            width: 60px;
            height: 2px;
            background-color: #d65050;
            transform: translateX(-50%);
        }

        .links-section h3 {
            font-family: 'Raleway', sans-serif;
            font-size: 20px;
            color: #443f3f;
            font-weight: 600;
            margin: 30px 0 15px 0;
            padding-bottom: 8px;
            border-bottom: 1px solid #e0e0e0;
        }

        .links-section ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 12px 30px;
            margin-bottom: 30px;
        }

        .links-section ul li {
            padding-left: 20px;
            position: relative;
            line-height: 1.6;
        }

        .links-section ul li::before {
            content: '→';
            position: absolute;
            left: 0;
            color: #d65050;
            font-weight: bold;
        }

        .links-section ul li a {
            color: #767676;
            text-decoration: none;
            transition: color 0.3s;
            font-size: 15px;
        }

        .links-section ul li a:hover {
            color: #d65050;
        }

        footer {
            background-color: #1c1c1c;
            color: #a8a8a8;
            padding: 30px 0;
            text-align: center;
            margin-top: 80px;
        }

        footer p {
            margin: 0;
            font-size: 14px;
        }

        @media only screen and (max-width: 991px) {
            h1 {
                font-size: 38px;
            }

            nav ul {
                flex-direction: column;
                gap: 15px;
                display: none;
            }

            article {
                padding: 30px 20px;
            }

            .links-section {
                padding: 40px 20px;
            }

            .links-section ul {
                grid-template-columns: 1fr;
                gap: 10px;
            }
        }

        @media only screen and (max-width: 767px) {
            h1 {
                font-size: 28px;
            }

            .hero-section {
                padding: 60px 0;
            }

            article h2 {
                font-size: 26px;
            }

            article h3 {
                font-size: 20px;
            }

            article {
                padding: 25px 15px;
            }

            .transition-section {
                padding: 25px 15px;
            }

            .links-section {
                padding: 30px 15px;
            }

            .links-section h2 {
                font-size: 26px;
            }

            .main-container {
                padding: 40px 15px;
            }
        }

        @media only screen and (max-width: 479px) {
            h1 {
                font-size: 24px;
            }

            article h2 {
                font-size: 22px;
            }

            .links-section h2 {
                font-size: 22px;
            }
        }