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ease}.start-button[data-v-1401eacd]:hover:not(:disabled){-webkit-transform:translateY(-2px);transform:translateY(-2px);-webkit-box-shadow:0 6px 20px rgba(102,126,234,.4);box-shadow:0 6px 20px rgba(102,126,234,.4)}.start-button[data-v-1401eacd]:disabled{background:#c0c4cc;cursor:not-allowed}@media (max-width:768px){.content-area[data-v-1401eacd]{padding:15px}.main-title[data-v-1401eacd]{font-size:20px}.subtitle[data-v-1401eacd]{font-size:14px}.level-card[data-v-1401eacd]{padding:15px}.level-title[data-v-1401eacd]{font-size:18px}.level-description[data-v-1401eacd]{font-size:13px}.section-title[data-v-1401eacd]{font-size:16px}.knowledge-option[data-v-1401eacd]{padding:15px}.option-icon[data-v-1401eacd]{width:35px;height:35px}.option-icon i[data-v-1401eacd]{font-size:16px}.option-title[data-v-1401eacd]{font-size:15px}.option-description[data-v-1401eacd]{font-size:13px}.start-button[data-v-1401eacd]{height:45px;font-size:15px}}@media 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