#game-container {
    max-width: 800px;
    margin: 20px auto;
    padding: 20px;
    padding-top: 40px;  /* 为home-link留出空间 */
    font-family: Arial, sans-serif;
    text-align: center;
    position: relative;  /* 为绝对定位的home-link提供参考 */
}

#score {
    font-size: 24px;
    margin-bottom: 20px;
    color: #2c3e50;
}

#question-area {
    margin: 20px 0;
    padding: 15px;  /* 减少padding */
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

#question-area.drop-active {
    border-color: #3498db;
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.2);
    transform: scale(1.01);
    background-color: rgba(52, 152, 219, 0.05);
}

#sentence {
    font-size: 20px;
    line-height: 1.6;
    margin-bottom: 10px;  /* 减少margin-bottom */
    min-height: 40px;     /* 减少min-height */
    position: relative;
    color: #2c3e50;
}

.word-blank {
    display: inline-block;
    min-width: 60px;
    height: 30px;
    line-height: 30px;
    padding: 0 15px;
    margin: 0 5px;
    border: 2px solid #3498db;
    border-radius: 4px;
    vertical-align: middle;
    background-color: #fff;
    text-align: center;
}

.word-blank.filled {
    border-color: #27ae60;
    color: #27ae60;
    font-weight: bold;
    animation: fillIn 0.4s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

#phrase {
    font-size: 18px;
    color: #27ae60;
    margin-top: 10px;  /* 减少margin-top */
    padding: 8px 0;    /* 减少padding并只保留上下padding */
    border-top: 1px dashed #e0e0e0;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

#phrase.show {
    opacity: 1;
    transform: translateY(0);
}

.hidden {
    display: none;
}

#options {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin: 20px 0;
    touch-action: none;  /* 禁用整个选项容器的默认触摸行为 */
}

.option {
    padding: 8px 20px;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    user-select: none;
    touch-action: none;  /* 确保在所有设备上都禁用默认触摸行为 */
    -webkit-touch-callout: none;  /* 禁用iOS长按菜单 */
    transform: translateY(0);
    transition: transform 0.2s ease, background-color 0.2s ease, opacity 0.2s ease;
}

.option:hover {
    background-color: #2980b9;
}

.option.dragging {
    opacity: 0.8;
    background-color: #2980b9;
    transform: scale(1.1) translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

#feedback {
    margin: 20px 0;
    font-size: 18px;
    min-height: 24px;
    font-weight: bold;
}

#next {
    padding: 10px 25px;
    font-size: 16px;
    background-color: #2ecc71;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

#next:hover {
    background-color: #27ae60;
}

#next:disabled {
    background-color: #95a5a6;
    cursor: not-allowed;
}

@keyframes fillIn {
    0% {
        transform: scale(1);
        background-color: transparent;
    }
    50% {
        transform: scale(1.1);
        background-color: rgba(39, 174, 96, 0.1);
    }
    100% {
        transform: scale(1);
        background-color: rgba(39, 174, 96, 0.05);
    }
}

/* Completion Screen Styles */
#completion-area {
    display: none;
    margin: 20px auto;
    max-width: 600px;
    padding: 20px;
}

.completion-content {
    background-color: #fff;
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.completion-content h2 {
    color: #2c3e50;
    margin-bottom: 20px;
    font-size: 28px;
}

.stats {
    background-color: #f8f9fa;
    border-radius: 6px;
    padding: 20px;
    margin-bottom: 30px;
}

.stats p {
    margin: 10px 0;
    font-size: 18px;
    color: #34495e;
}

.wrong-phrases {
    text-align: left;
}

.wrong-phrases h3 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 20px;
}

.wrong-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.wrong-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    margin-bottom: 8px;
    background-color: #f8f9fa;
    border-radius: 6px;
    border-left: 4px solid #e74c3c;
}

.full-phrase {
    color: #2c3e50;
    font-size: 16px;
}

.error-count {
    color: #e74c3c;
    font-size: 14px;
    font-weight: bold;
}

.review-button {
    display: block;
    width: 100%;
    margin: 0 0 20px 0;  /* 修改margin，确保按钮和列表之间有合适间距 */
    padding: 12px;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.review-button:hover {
    background-color: #2980b9;
}

.perfect-score {
    text-align: center;
    color: #27ae60;
    font-size: 20px;
    font-weight: bold;
    margin: 20px 0;
}

/* 触摸屏支持 */
@media (hover: none) {
    .option {
        padding: 12px 25px;
        margin: 8px;
        font-size: 16px;
    }
    
    .option.dragging {
        position: absolute;
        z-index: 1000;
        pointer-events: none;
        transform: scale(1.1);
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
    }
    
    #next {
        padding: 15px 30px;
        font-size: 18px;
    }
    
    .word-blank {
        min-width: 100px;
        height: 40px;
        line-height: 40px;
        margin: 10px 5px;
    }
    
    .wrong-list li {
        padding: 15px;
    }
    
    .review-button {
        padding: 15px;
        font-size: 18px;
    }
}

.original-link {
    text-align: center;
    margin: 20px 0;
}

.original-link a {
    color: #3498db;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.original-link a:hover {
    color: #2980b9;
    text-decoration: underline;
}

.home-link {
    position: absolute;
    top: 20px;
    left: 20px;
    color: #3498db;
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 24px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background-color: white;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.home-link:hover {
    color: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}