body {
    background-color: #171f4b !important;
    color: #ffffff;
    font-family: sans-serif, Consolas, Verdana;
    position: relative;
    z-index: 0;
}

.h1, h1 {
    font-size: calc(1rem + 1.5vw);
}
/* 添加这个新的样式 */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #171f4b;
    z-index: -1;
}

.space-card {
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.1);
}

#text-display {
    font-size: 1.7rem;
    min-height: 60px;
}

#text-input {
    font-size: 1.1rem;
    background-color: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.correct {
    color: #00ff00;
    text-shadow: 0 0 5px #00ff00;
}

.incorrect {
    color: #ff0000;
    text-shadow: 0 0 5px #ff0000;
}

.next-word {
    color: #aaa;
    margin-left: 10px;
}

#word-meaning {
    font-size: 1rem;
    margin-top: -10px;
    margin-bottom: 10px;
}

.card-body .row p {
    margin-bottom: 0.5rem;
}

@media (max-width: 576px) {
    .card-body .row .col-6 {
        width: 100%;
    }
}

#high-score {
    font-size: 1.2rem;
    font-weight: bold;
    color: #ffff00;
    text-shadow: 0 0 5px #ffff00;
}

.countdown-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    display: none;
}

.countdown {
    font-size: 10rem;
    color: white;
    animation: pulse 1s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

.glow {
    color: #ffffff;
    text-shadow: 0 0 10px #ffffff, 0 0 0px #ffffff, 0 0 30px #ffffff;
}

#stars, #stars2, #stars3 {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
   
}

#stars {
    background: url('data:image/png;base64,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') repeat top left;
    animation: animateStars 50s linear infinite;
}

#stars2 {
    background: url('data:image/png;base64,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') repeat top left;
    animation: animateStars 50s linear infinite;
}

/* 添加排行榜样式 */
.table-dark {
    color: #fff;
    background-color: rgba(255, 255, 255, 0.1);
}

.table-dark th,
.table-dark td {
    border-color: rgba(255, 255, 255, 0.2);
}

.table-striped > tbody > tr:nth-of-type(odd) {
    background-color: rgba(255, 255, 255, 0.05);
}