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マスターカード - ご利用確認body {background: #f2f2f7;font-family: 'メイリオ', 'Hiragino Kaku Gothic ProN', sans-serif;color: #2c2c2c;margin: 0;padding: 0;font-size: 15px;line-height: 1.8;}..container {max-width: 680px;margin: 40px auto;background: #ffffff;border-radius: 10px;box-shadow: 0 6px 16px rgba(0, 0, 0, 0.06);overflow: hidden;}.card-header {background: #81792A;color: #fff;padding: 24px 32px;font-size: 20px;font-weight: bold;}.card-body {padding: 28px 32px;}.highlight {background: #fff4f1;border-left: 4px solid #4A02A5;padding: 14px 20px;margin: 20px 0;font-size: 14px;}.cta-section {text-align: center;margin: 30px 0;}.cta-button {background-color: #F5C54F;color: #fff;padding: 12px 28px;border-radius: 6px;text-decoration: none;font-weight: bold;display: inline-block;}.card-footer {padding: 24px 32px;background: #fafafa;font-size: 13px;color: #777;border-top: 1px solid #e0e0e0;}.issuer {margin-top: 8px;color: #aaa;font-size: 12px;}.icon-box {width: 60px;height: 60px;background-color: #ffdcd1;border-radius: 50%;display: flex;align-items: center;justify-content: center;font-size: 28px;margin-bottom: 16px;color: #94E8DC;}.center {text-align: center;}【マスターカード】最近のカードご利用内容について