.game-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    font-family: Arial, sans-serif;
}

.game-title {
    text-align: center;
    margin-bottom: 20px;
}

.game-title h1 {
    color: #2196f3;
    margin-bottom: 10px;
}

.game-title p {
    color: #666;
    font-size: 1.2em;
}

.game-header {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 20px;
    padding: 10px;
    background-color: #f5f5f5;
    border-radius: 8px;
}

.score-container,
.level-container {
    font-size: 1.2em;
    font-weight: bold;
    color: #333;
}

.sentence-container {
    text-align: center;
    margin: 20px 0;
    padding: 20px;
    background-color: #e3f2fd;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.sentence-container p {
    font-size: 1.5em;
    color: #1976d2;
    margin: 0;
}

.words-container {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
    margin: 20px 0;
    padding: 20px;
    background-color: #f5f5f5;
    border-radius: 8px;
}

.word-block {
    padding: 15px 25px;
    font-size: 1.2em;
    background-color: white;
    border: 2px solid #2196f3;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.word-block:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    background-color: #e3f2fd;
}

.word-block.correct {
    background-color: #4caf50;
    color: white;
    border-color: #388e3c;
    animation: correct 0.5s ease;
}

.word-block.wrong {
    animation: wrong 0.5s ease;
}

@keyframes correct {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

@keyframes wrong {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-5px); }
    40%, 80% { transform: translateX(5px); }
}

.game-controls {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin: 20px 0;
}

.game-button {
    padding: 10px 20px;
    font-size: 1.1em;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    background-color: #2196f3;
    color: white;
}

.game-button:hover {
    background-color: #1976d2;
    transform: translateY(-2px);
}

.hint-container {
    text-align: center;
    margin: 20px 0;
    padding: 15px;
    background-color: #fff3e0;
    border-radius: 8px;
    color: #f57c00;
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
    justify-content: center;
    align-items: center;
}

.modal-content {
    background-color: white;
    padding: 30px;
    border-radius: 8px;
    text-align: center;
    position: relative;
    max-width: 80%;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.close-button {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 1.5em;
    cursor: pointer;
    color: #666;
}

.modal.success .modal-content {
    border-top: 4px solid #4caf50;
}

.modal button {
    margin-top: 20px;
    padding: 10px 20px;
    font-size: 1.1em;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    background-color: #4caf50;
    color: white;
    transition: all 0.3s ease;
}

.modal button:hover {
    background-color: #388e3c;
    transform: translateY(-2px);
}

/* 响应式设计 */
@media (max-width: 600px) {
    .game-header {
        flex-direction: column;
        align-items: center;
        gap: 10px;
    }

    .sentence-container p {
        font-size: 1.2em;
    }

    .word-block {
        padding: 10px 20px;
        font-size: 1em;
    }

    .game-button {
        padding: 8px 16px;
        font-size: 1em;
    }
}