.english-text {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-bottom: 12px;
    line-height: 1.6;
    font-weight: normal;
}

.clickable-word {
    font-weight: bolder;
}

.clickable-word {
    cursor: pointer;
    border-bottom: 1px dashed var(--secondary-color);
    transition: all 0.2s;
}

.clickable-word:hover {
    background-color: #e3f2fd;
    border-bottom: 1px solid var(--secondary-color);
}

.word-tooltip.show {
    opacity: 1;
}

.word-tooltip {
    position: fixed;
    background: rgba(0, 0, 0, 0.041);
    color: white;
    padding: 8px 12px;
    border-radius: 4px;
    font-size: 0.85rem;
    z-index: 100;
    max-width: 200px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: auto;
    backdrop-filter: blur(2px);
    /* 背景模糊 */
    -webkit-backdrop-filter: blur(2px);
    /* Safari */
}

.word-tooltip {
    text-shadow:
        1px 1px 2px black,
        -1px 1px 2px black,
        1px -1px 2px black,
        -1px -1px 2px black;
}

/* 竖屏手机 */
@media (max-width: 480px) and (orientation: portrait) {
    .word-tooltip {
        font-size: 0.85rem;
    }
}

/* 横屏手机 */
@media (max-width: 480px) and (orientation: landscape) {
    .word-tooltip {
        font-size: 0.75rem;
    }
}