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

        body {
            background: #1a3265;
            font-family: Verdana, Arial, Helvetica, sans-serif;
            font-size: 14px;
            color: #35383d;
            line-height: 1.6;
        }

        a {
            text-decoration: none;
            color: #00a0e3;
            transition: color 0.3s ease;
        }

        a:hover {
            color: #003399;
            text-decoration: underline;
        }

        h1, h2, h3, h4, h5, h6 {
            font-family: "Trebuchet MS", Arial, sans-serif;
            font-weight: normal;
            margin-bottom: 15px;
        }

        img {
            max-width: 100%;
            height: auto;
            border: none;
        }

        .container {
            max-width: 1000px;
            margin: 0 auto;
            background: #fff;
            position: relative;
        }

        header {
            background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 185"><rect fill="%230097ca" width="1000" height="185"/></svg>') repeat-x;
            background-color: #0097ca;
            padding: 60px 20px 20px;
            min-height: 185px;
            position: relative;
        }

        header h1 {
            font-size: 32px;
            line-height: 1.2;
            letter-spacing: -1px;
            color: #fff;
            margin: 0 0 10px 0;
            font-weight: normal;
        }

        header .description {
            color: #75c0d9;
            font-size: 16px;
            font-weight: bold;
            letter-spacing: -1px;
        }

        nav {
            background: #0097ca;
            padding: 12px 20px;
            border-top: 1px solid rgba(255,255,255,0.1);
        }

        nav ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 5px;
        }

        nav li {
            display: inline-block;
        }

        nav a {
            display: block;
            padding: 8px 15px;
            background: rgba(0,0,0,0.1);
            color: #fff;
            border-radius: 3px;
            font-size: 13px;
            transition: background 0.3s ease;
        }

        nav a:hover {
            background: rgba(0,0,0,0.2);
            text-decoration: none;
        }

        main {
            padding: 40px 20px;
            max-width: 800px;
            margin: 0 auto;
        }

        main h1 {
            font-size: 28px;
            line-height: 1.3;
            letter-spacing: -1px;
            color: #007ac8;
            margin-bottom: 20px;
            padding-bottom: 15px;
            border-bottom: 2px solid #e0e0e0;
        }

        article {
            font-size: 14px;
            line-height: 1.8;
            color: #35383d;
            margin-bottom: 40px;
        }

        article p {
            margin-bottom: 20px;
        }

        article h2 {
            font-size: 22px;
            color: #007ac8;
            margin-top: 30px;
            margin-bottom: 15px;
        }

        article h3 {
            font-size: 18px;
            color: #007ac8;
            margin-top: 25px;
            margin-bottom: 12px;
        }

        article h4 {
            font-size: 16px;
            color: #007ac8;
            margin-top: 20px;
            margin-bottom: 10px;
        }

        article ul, article ol {
            margin: 15px 0 15px 30px;
        }

        article li {
            margin-bottom: 8px;
        }

        article blockquote {
            padding: 15px 20px;
            background: #e9f8ff;
            border-left: 4px solid #00a0e3;
            margin: 20px 0;
            color: #336699;
            font-style: italic;
        }

        .transition-section {
            background: #f8f9fa;
            padding: 30px;
            margin: 40px 0;
            border-radius: 5px;
            border-left: 4px solid #0097ca;
        }

        .transition-section p {
            margin-bottom: 15px;
            color: #35383d;
        }

        .links-section {
            background: #f0f7fb;
            padding: 40px 30px;
            margin: 40px 0;
            border-radius: 5px;
        }

        .links-section h3 {
            font-size: 20px;
            color: #007ac8;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #0097ca;
        }

        .links-section ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 10px 20px;
            margin-bottom: 30px;
        }

        .links-section li {
            padding: 8px 0 8px 20px;
            background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="10" height="10"><circle cx="5" cy="5" r="3" fill="%2300a0e3"/></svg>') no-repeat left 12px;
        }

        .links-section a {
            color: #007ac8;
            font-size: 14px;
            display: inline-block;
        }

        .links-section a:hover {
            color: #003399;
        }

        footer {
            background: #0097ca;
            color: #92b8cd;
            padding: 25px 20px;
            text-align: center;
            font-size: 12px;
            line-height: 1.6;
        }

        footer a {
            color: #92b8cd;
            text-decoration: underline;
        }

        footer a:hover {
            color: #fff;
        }

        @media (max-width: 768px) {
            header {
                padding: 30px 15px 15px;
                min-height: auto;
            }

            header h1 {
                font-size: 24px;
            }

            header .description {
                font-size: 14px;
            }

            nav {
                padding: 10px 15px;
            }

            nav ul {
                flex-direction: column;
                gap: 3px;
            }

            nav a {
                padding: 10px 12px;
            }

            main {
                padding: 25px 15px;
            }

            main h1 {
                font-size: 22px;
            }

            article {
                font-size: 13px;
            }

            article h2 {
                font-size: 20px;
            }

            article h3 {
                font-size: 17px;
            }

            .transition-section {
                padding: 20px 15px;
            }

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

            .links-section ul {
                grid-template-columns: 1fr;
                gap: 8px;
            }

            .links-section h3 {
                font-size: 18px;
            }
        }

        @media (max-width: 480px) {
            header h1 {
                font-size: 20px;
            }

            header .description {
                font-size: 13px;
            }

            main h1 {
                font-size: 20px;
            }

            article {
                font-size: 13px;
            }

            .links-section {
                padding: 20px 12px;
            }
        }