/* 答題專用樣式 */
.option-card {
    background: rgba(255, 255, 255, 0.5);
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.option-card:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateX(5px);
    border-color: #4285f4;
}

/* 選中狀態 */
.option-card.selected {
    background: #eef2ff !important;
    border: 2px solid #4285f4 !important;
}

.option-card.selected .option-text {
    color: #4285f4 !important;
    font-weight: bold;
}

.selection-indicator {
    width: 20px;
    height: 20px;
    border: 2px solid #ccc;
    border-radius: 50%;
    transition: all 0.2s;
}

.option-card.selected .selection-indicator {
    border-color: #4285f4;
    background: #4285f4;
    box-shadow: inset 0 0 0 4px #eef2ff;
}

.cursor-pointer { cursor: pointer; }