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

        body {
            background: #f5f2eb;
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
            line-height: 1.4;
            color: #2c2b28;
            padding: 2rem 1.5rem;
        }

        .container {
            max-width: 1080px;
            margin: 0 auto;
        }

        /* header area */
        .site-header {
            text-align: center;
            margin-bottom: 2rem;
        }
        .site-logo {
            font-size: 1.8rem;
            font-weight: 700;
            letter-spacing: -0.3px;
            color: #c1962c;
            text-decoration: none;
            background: #fff4e6;
            display: inline-block;
            padding: 0.6rem 1.8rem;
            border-radius: 60px;
            box-shadow: 0 2px 6px rgba(0,0,0,0.02);
        }
        .site-logo span {
            font-weight: 400;
            color: #2c2b28;
        }

        /* main card */
        .points-card {
            background: #ffffff;
            border-radius: 48px;
            box-shadow: 0 20px 35px -10px rgba(0, 0, 0, 0.05), 0 0 0 1px rgba(0, 0, 0, 0.02);
            padding: 2.5rem 2rem;
            margin-bottom: 2rem;
        }

        .website-badge {
            display: inline-block;
            background: #fef3e0;
            border-radius: 80px;
            padding: 6px 20px;
            font-size: 0.95rem;
            font-weight: 500;
            color: #b8860b;
            margin-bottom: 1.8rem;
        }
        .website-badge a {
            color: #b8860b;
            text-decoration: none;
            border-bottom: 1px dotted #e8c878;
        }

        h1 {
            font-size: 3rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 0.5rem;
            letter-spacing: -0.02em;
        }
        h1 span {
            color: #c1962c;
        }
        .subhead {
            font-size: 1.25rem;
            color: #5e5b55;
            border-left: 4px solid #e0bc6e;
            padding-left: 1rem;
            margin: 1rem 0 2rem 0;
        }

        /* sections */
        .section-block {
            background: #fefaf2;
            border-radius: 32px;
            padding: 1.8rem 2rem;
            margin-bottom: 2rem;
        }
        .section-title {
            font-size: 1.8rem;
            font-weight: 700;
            color: #c1962c;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        .rule-list {
            display: flex;
            flex-direction: column;
            gap: 1.2rem;
        }
        .rule-item {
            display: flex;
            align-items: flex-start;
            gap: 1rem;
            font-size: 1.1rem;
        }
        .rule-icon {
            font-size: 1.6rem;
            min-width: 2rem;
            text-align: center;
            color: #c1962c;
        }
        .rule-text strong {
            color: #a07118;
        }

        .highlight-box {
            background: #fff4e6;
            border-radius: 24px;
            padding: 1.5rem;
            margin-top: 1.5rem;
            text-align: center;
        }
        .fine-print {
            font-size: 0.9rem;
            color: #7a7262;
            border-top: 1px solid #ecdca8;
            padding-top: 1.5rem;
            margin-top: 1rem;
        }

        .footer-note {
            background: #f5ede1;
            border-radius: 28px;
            padding: 1.5rem;
            text-align: center;
            font-size: 1rem;
            color: #4f4a3e;
        }

        /* responsiveness */
        @media (max-width: 680px) {
            body {
                padding: 1rem;
            }
            .points-card {
                padding: 1.8rem;
            }
            h1 {
                font-size: 2.4rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .rule-item {
                font-size: 1rem;
            }
        }