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

        body {
            font-family: Arial, Helvetica, sans-serif;
            font-size: 14px;
            line-height: 1.6;
            color: #666;
            background-color: #f5f5f5;
        }

        .header {
            background: linear-gradient(to bottom, #4a5f7f 0%, #3a4f6f 100%);
            padding: 15px 0;
            box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        }

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

        .site-title {
            color: #fff;
            font-size: 18px;
            font-weight: normal;
            text-decoration: none;
        }

        .main-nav {
            display: flex;
            gap: 5px;
        }

        .main-nav a {
            color: #fff;
            text-decoration: none;
            padding: 8px 16px;
            background-color: rgba(255,255,255,0.1);
            border-radius: 3px;
            font-size: 12px;
            transition: background-color 0.3s;
        }

        .main-nav a:hover {
            background-color: rgba(255,255,255,0.2);
        }

        .banner {
            background: linear-gradient(to right, #115995 0%, #1C689A 100%);
            padding: 40px 20px;
            text-align: center;
            color: #fff;
            border-bottom: 3px solid #284E6E;
        }

        .banner h1 {
            font-size: 32px;
            font-weight: normal;
            color: #fff;
            margin-bottom: 10px;
        }

        .container {
            max-width: 1200px;
            margin: 30px auto;
            padding: 0 20px;
        }

        .content-wrapper {
            background-color: #fff;
            border-radius: 5px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
            overflow: hidden;
        }

        article {
            padding: 40px;
        }

        article h2 {
            color: #1C689A;
            font-size: 24px;
            font-weight: normal;
            margin: 30px 0 15px;
        }

        article h3 {
            color: #43556D;
            font-size: 18px;
            font-weight: bold;
            margin: 25px 0 12px;
        }

        article h4 {
            color: #284E6E;
            font-size: 16px;
            font-weight: bold;
            margin: 20px 0 10px;
        }

        article p {
            margin-bottom: 15px;
            text-align: justify;
            color: #666;
        }

        article em {
            font-weight: bold;
            font-style: normal;
            color: #43556D;
        }

        .transition-section {
            padding: 30px 40px;
            background-color: #f9f9f9;
            border-top: 1px solid #e2e2e2;
        }

        .transition-section p {
            margin-bottom: 15px;
            color: #666;
            text-align: justify;
        }

        .links-section {
            padding: 40px;
            background-color: #fff;
            border-top: 1px solid #e2e2e2;
        }

        .links-section h2 {
            color: #1C689A;
            font-size: 24px;
            font-weight: normal;
            margin-bottom: 25px;
            text-align: center;
        }

        .links-section h3 {
            color: #43556D;
            font-size: 18px;
            font-weight: bold;
            margin: 25px 0 15px;
            padding-bottom: 8px;
            border-bottom: 2px solid #e2e2ff;
        }

        .links-section ul {
            list-style: none;
            column-count: 2;
            column-gap: 30px;
            margin-bottom: 20px;
        }

        .links-section li {
            margin-bottom: 10px;
            break-inside: avoid;
        }

        .links-section li:before {
            content: "+";
            color: #C00;
            font-weight: bold;
            margin-right: 8px;
        }

        .links-section a {
            color: #115995;
            text-decoration: none;
            font-size: 13px;
            transition: color 0.3s;
        }

        .links-section a:hover {
            color: #6B6BB3;
            text-decoration: underline;
        }

        .footer {
            background-color: #738099;
            color: #ACB3CC;
            padding: 30px 20px;
            margin-top: 40px;
        }

        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
            text-align: center;
        }

        .footer-bar {
            background: linear-gradient(to right, #4a5f7f 0%, #3a4f6f 100%);
            color: #fff;
            padding: 12px;
            text-align: center;
            font-size: 12px;
        }

        .footer-bar a {
            color: #fff;
            text-decoration: none;
            margin: 0 10px;
        }

        .footer-bar a:hover {
            text-decoration: underline;
        }

        @media (max-width: 768px) {
            .header-content {
                flex-direction: column;
                gap: 15px;
            }

            .main-nav {
                flex-wrap: wrap;
                justify-content: center;
            }

            .banner h1 {
                font-size: 24px;
            }

            article {
                padding: 25px 20px;
            }

            .transition-section {
                padding: 20px;
            }

            .links-section {
                padding: 25px 20px;
            }

            .links-section ul {
                column-count: 1;
            }
        }

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

            article h2 {
                font-size: 20px;
            }

            article h3 {
                font-size: 16px;
            }

            .main-nav a {
                font-size: 11px;
                padding: 6px 12px;
            }
        }