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

        html {
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: #E31C79;
            background-color: #FFF997;
            line-height: 1.6;
            font-size: 18px;
            letter-spacing: 0.02em;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 50px;
        }

        header {
            position: relative;
            padding: 40px 0 30px;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 100'%3E%3Cpath fill='%23FFFFFF' opacity='0.3' d='M0,0 Q300,50 600,0 T1200,0 L1200,100 L0,100 Z'/%3E%3C/svg%3E");
            background-repeat: repeat-x;
            background-position: bottom;
            background-size: auto 50px;
        }

        .logo {
            text-align: center;
            font-size: 32px;
            font-weight: bold;
            letter-spacing: 0.15em;
            margin-bottom: 10px;
        }

        .subtitle {
            text-align: center;
            font-size: 14px;
            letter-spacing: 0.25em;
            opacity: 0.8;
        }

        main {
            padding: 60px 0;
        }

        h1 {
            font-size: 48px;
            font-weight: normal;
            letter-spacing: 0.08em;
            line-height: 1.2;
            margin-bottom: 40px;
            text-align: center;
        }

        h2 {
            font-size: 32px;
            font-weight: normal;
            letter-spacing: 0.05em;
            line-height: 1.3;
            margin: 40px 0 25px;
        }

        h3 {
            font-size: 24px;
            font-weight: normal;
            letter-spacing: 0.04em;
            margin: 25px 0 15px;
        }

        h4 {
            font-size: 20px;
            font-weight: normal;
            letter-spacing: 0.03em;
            margin: 20px 0 12px;
        }

        article {
            max-width: 900px;
            margin: 0 auto 60px;
        }

        article p {
            margin-bottom: 1.5em;
            line-height: 1.7;
        }

        .transition-section {
            max-width: 900px;
            margin: 60px auto;
            padding: 40px;
            background-color: rgba(255, 255, 255, 0.3);
            border-radius: 15px;
        }

        .transition-section p {
            margin-bottom: 1.3em;
            line-height: 1.7;
        }

        .links-section {
            background-color: #EEFAFF;
            padding: 80px 0;
            margin-top: 80px;
        }

        .links-section h2 {
            text-align: center;
            margin-bottom: 50px;
        }

        .links-section h3 {
            margin-top: 40px;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #E31C79;
        }

        .links-section ul {
            list-style: none;
            column-count: 2;
            column-gap: 60px;
            margin-bottom: 40px;
        }

        .links-section li {
            margin-bottom: 12px;
            break-inside: avoid;
        }

        .links-section a {
            color: #E31C79;
            text-decoration: none;
            border-bottom: 1px solid transparent;
            transition: border-color 0.3s ease;
            display: inline-block;
            padding: 5px 0;
        }

        .links-section a:hover {
            border-bottom-color: #E31C79;
        }

        footer {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 100'%3E%3Cpath fill='%23FFFFFF' opacity='0.2' d='M0,100 Q300,50 600,100 T1200,100 L1200,0 L0,0 Z'/%3E%3C/svg%3E");
            background-repeat: repeat-x;
            background-position: top;
            background-size: auto 100px;
            padding: 140px 0 50px;
            text-align: center;
        }

        footer p {
            font-size: 14px;
            opacity: 0.7;
        }

        @media (max-width: 1090px) {
            body {
                font-size: 16px;
            }

            .container {
                padding: 0 30px;
            }

            h1 {
                font-size: 36px;
            }

            h2 {
                font-size: 26px;
            }

            h3 {
                font-size: 20px;
            }

            main {
                padding: 45px 0;
            }

            .transition-section {
                padding: 30px;
                margin: 45px auto;
            }

            .links-section {
                padding: 60px 0;
                margin-top: 60px;
            }

            .links-section ul {
                column-gap: 40px;
            }
        }

        @media (max-width: 768px) {
            .links-section ul {
                column-count: 1;
            }
        }

        @media (max-width: 580px) {
            body {
                font-size: 15px;
            }

            .container {
                padding: 0 20px;
            }

            header {
                padding: 25px 0 20px;
            }

            .logo {
                font-size: 24px;
            }

            .subtitle {
                font-size: 11px;
            }

            h1 {
                font-size: 26px;
                margin-bottom: 30px;
            }

            h2 {
                font-size: 20px;
                margin: 30px 0 20px;
            }

            h3 {
                font-size: 18px;
                margin: 20px 0 12px;
            }

            h4 {
                font-size: 16px;
            }

            main {
                padding: 30px 0;
            }

            .transition-section {
                padding: 25px;
                margin: 35px auto;
            }

            .links-section {
                padding: 40px 0;
                margin-top: 40px;
            }

            .links-section h2 {
                margin-bottom: 35px;
            }

            .links-section h3 {
                margin-top: 30px;
            }

            footer {
                padding: 100px 0 30px;
            }
        }