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

        :root {
            --primary-color: #EB0707;
            --text-color: #333;
            --bg-color: #f5f3ef;
            --white: #ffffff;
            --border-color: #e0ddd6;
            --shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
        }

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: var(--text-color);
            background-color: var(--bg-color);
            background-image: url('data:image/svg+xml,<svg width="60" height="60" xmlns="http://www.w3.org/2000/svg"><rect width="60" height="60" fill="%23f5f3ef"/><circle cx="30" cy="30" r="1" fill="%23e0ddd6"/></svg>');
            background-size: 60px 60px;
        }

        header {
            background-color: var(--white);
            box-shadow: var(--shadow);
            padding: 1.5rem 0;
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .header-content {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
            text-align: center;
        }

        .site-title {
            font-size: 2.5rem;
            color: var(--primary-color);
            font-weight: bold;
            margin-bottom: 0.3rem;
            letter-spacing: 2px;
        }

        .site-subtitle {
            font-size: 1.5rem;
            color: var(--primary-color);
            font-weight: 600;
            letter-spacing: 1px;
        }

        nav {
            background-color: var(--white);
            border-bottom: 2px solid var(--primary-color);
            margin-top: 1rem;
        }

        .nav-container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
        }

        .nav-list {
            list-style: none;
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 0.5rem;
            padding: 1rem 0;
        }

        .nav-list li {
            display: inline-block;
        }

        .nav-list a {
            color: var(--text-color);
            text-decoration: none;
            padding: 0.6rem 1.2rem;
            display: block;
            transition: all 0.3s ease;
            border-radius: 4px;
        }

        .nav-list a:hover {
            background-color: var(--primary-color);
            color: var(--white);
        }

        main {
            max-width: 900px;
            margin: 3rem auto;
            padding: 0 2rem;
        }

        h1 {
            font-size: 2.5rem;
            color: var(--primary-color);
            margin-bottom: 2rem;
            text-align: center;
            line-height: 1.2;
            font-weight: 700;
        }

        article {
            background-color: var(--white);
            padding: 3rem;
            border-radius: 8px;
            box-shadow: var(--shadow);
            margin-bottom: 3rem;
        }

        article h2 {
            color: var(--primary-color);
            font-size: 2rem;
            margin-top: 2rem;
            margin-bottom: 1rem;
        }

        article h3 {
            color: var(--text-color);
            font-size: 1.5rem;
            margin-top: 1.5rem;
            margin-bottom: 0.8rem;
        }

        article h4 {
            color: var(--text-color);
            font-size: 1.2rem;
            margin-top: 1.2rem;
            margin-bottom: 0.6rem;
        }

        article p {
            margin-bottom: 1.2rem;
            font-size: 1.05rem;
            line-height: 1.8;
        }

        .transition-section {
            background-color: var(--white);
            padding: 2.5rem 3rem;
            border-radius: 8px;
            box-shadow: var(--shadow);
            margin-bottom: 3rem;
        }

        .transition-section p {
            font-size: 1.05rem;
            line-height: 1.8;
            margin-bottom: 1rem;
        }

        .links-section {
            background-color: var(--white);
            padding: 3rem;
            border-radius: 8px;
            box-shadow: var(--shadow);
            margin-bottom: 3rem;
        }

        .links-section h2 {
            color: var(--primary-color);
            font-size: 2rem;
            margin-bottom: 2rem;
            text-align: center;
        }

        .links-section h3 {
            color: var(--text-color);
            font-size: 1.4rem;
            margin-top: 2rem;
            margin-bottom: 1rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--border-color);
        }

        .links-section ul {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 0.8rem 2rem;
            margin-bottom: 1.5rem;
        }

        .links-section li {
            padding: 0.3rem 0;
        }

        .links-section a {
            color: var(--primary-color);
            text-decoration: none;
            font-size: 1rem;
            transition: all 0.2s ease;
            display: inline-block;
            position: relative;
        }

        .links-section a:before {
            content: "→ ";
            opacity: 0;
            margin-right: 0;
            transition: all 0.2s ease;
        }

        .links-section a:hover:before {
            opacity: 1;
            margin-right: 0.3rem;
        }

        .links-section a:hover {
            color: #c00606;
            text-decoration: underline;
        }

        footer {
            background-color: var(--white);
            border-top: 2px solid var(--primary-color);
            padding: 2rem 0;
            margin-top: 4rem;
        }

        .footer-content {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
            text-align: center;
        }

        .footer-content p {
            margin-bottom: 0.8rem;
            font-size: 0.95rem;
            color: var(--text-color);
        }

        .footer-content a {
            color: var(--text-color);
            text-decoration: underline;
            transition: color 0.2s ease;
        }

        .footer-content a:hover {
            color: var(--primary-color);
        }

        @media (max-width: 768px) {
            .site-title {
                font-size: 2rem;
            }

            .site-subtitle {
                font-size: 1.2rem;
            }

            .nav-list {
                flex-direction: column;
                gap: 0;
            }

            .nav-list a {
                padding: 0.8rem 1rem;
            }

            h1 {
                font-size: 2rem;
            }

            article {
                padding: 2rem 1.5rem;
            }

            article h2 {
                font-size: 1.6rem;
            }

            article h3 {
                font-size: 1.3rem;
            }

            .transition-section {
                padding: 2rem 1.5rem;
            }

            .links-section {
                padding: 2rem 1.5rem;
            }

            .links-section ul {
                grid-template-columns: 1fr;
                gap: 0.5rem;
            }

            .links-section h2 {
                font-size: 1.6rem;
            }

            .links-section h3 {
                font-size: 1.2rem;
            }
        }

        @media (max-width: 480px) {
            .header-content {
                padding: 0 1rem;
            }

            .nav-container {
                padding: 0 1rem;
            }

            main {
                padding: 0 1rem;
            }

            .site-title {
                font-size: 1.6rem;
            }

            .site-subtitle {
                font-size: 1rem;
            }

            h1 {
                font-size: 1.6rem;
            }

            article {
                padding: 1.5rem 1rem;
            }

            .transition-section {
                padding: 1.5rem 1rem;
            }

            .links-section {
                padding: 1.5rem 1rem;
            }
        }