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

        body {
            font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
            line-height: 1.7;
            color: #333;
            background: #f9f9f9;
        }

        header {
            background: #151515;
            padding: 20px 0;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }

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

        .logo {
            font-size: 24px;
            font-weight: bold;
            color: #fff;
            text-decoration: none;
            letter-spacing: 1px;
        }

        nav {
            display: flex;
            gap: 30px;
            flex-wrap: wrap;
        }

        nav a {
            color: #fff;
            text-decoration: none;
            font-size: 14px;
            transition: color 0.3s;
            padding: 5px 0;
        }

        nav a:hover {
            color: #02874a;
        }

        main {
            max-width: 1200px;
            margin: 60px auto;
            padding: 0 20px;
        }

        h1 {
            font-size: 42px;
            color: #151515;
            margin-bottom: 40px;
            line-height: 1.3;
            font-weight: 300;
            letter-spacing: -0.5px;
        }

        article {
            background: #fff;
            padding: 50px;
            margin-bottom: 50px;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
            border-radius: 2px;
        }

        article h2 {
            font-size: 28px;
            color: #151515;
            margin-top: 35px;
            margin-bottom: 20px;
            font-weight: 400;
        }

        article h3 {
            font-size: 22px;
            color: #333;
            margin-top: 30px;
            margin-bottom: 15px;
            font-weight: 400;
        }

        article p {
            margin-bottom: 20px;
            color: #444;
            font-size: 16px;
        }

        article strong {
            color: #151515;
            font-weight: 600;
        }

        article a {
            color: #02874a;
            text-decoration: none;
            border-bottom: 1px solid transparent;
            transition: border-color 0.3s;
        }

        article a:hover {
            border-bottom-color: #02874a;
        }

        .transition-section {
            background: #fff;
            padding: 40px 50px;
            margin-bottom: 50px;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
            border-radius: 2px;
        }

        .transition-section p {
            color: #444;
            font-size: 16px;
            margin-bottom: 20px;
        }

        .links-section {
            background: #fff;
            padding: 50px;
            box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
            border-radius: 2px;
            margin-bottom: 50px;
        }

        .links-section h2 {
            font-size: 32px;
            color: #151515;
            margin-bottom: 40px;
            font-weight: 300;
        }

        .links-section h3 {
            font-size: 22px;
            color: #151515;
            margin-top: 35px;
            margin-bottom: 20px;
            font-weight: 400;
        }

        .links-section ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 15px 30px;
            margin-bottom: 30px;
        }

        .links-section li {
            position: relative;
            padding-left: 20px;
        }

        .links-section li:before {
            content: '→';
            position: absolute;
            left: 0;
            color: #02874a;
            font-weight: bold;
        }

        .links-section a {
            color: #333;
            text-decoration: none;
            transition: color 0.3s;
            display: inline-block;
        }

        .links-section a:hover {
            color: #02874a;
        }

        footer {
            background: #151515;
            color: #999;
            padding: 40px 20px;
            text-align: center;
            margin-top: 80px;
        }

        footer p {
            max-width: 1200px;
            margin: 0 auto;
            font-size: 14px;
        }

        @media (max-width: 768px) {
            .header-container {
                flex-direction: column;
                align-items: flex-start;
            }

            nav {
                margin-top: 15px;
                gap: 20px;
            }

            h1 {
                font-size: 32px;
                margin-bottom: 30px;
            }

            article {
                padding: 30px 25px;
            }

            article h2 {
                font-size: 24px;
            }

            article h3 {
                font-size: 20px;
            }

            .transition-section {
                padding: 30px 25px;
            }

            .links-section {
                padding: 30px 25px;
            }

            .links-section h2 {
                font-size: 26px;
                margin-bottom: 30px;
            }

            .links-section h3 {
                font-size: 20px;
            }

            .links-section ul {
                grid-template-columns: 1fr;
                gap: 12px;
            }
        }

        @media (max-width: 480px) {
            h1 {
                font-size: 28px;
            }

            article {
                padding: 20px;
            }

            article h2 {
                font-size: 22px;
            }

            .transition-section {
                padding: 20px;
            }

            .links-section {
                padding: 20px;
            }

            nav {
                gap: 15px;
            }

            nav a {
                font-size: 13px;
            }
        }