/* --- 基础样式重置和全局设置 --- */
:root {
    --primary-color: #007BFF;
    --secondary-color: #6c757d;
    --background-color: #f4f7f6;
    --card-background: #ffffff;
    --text-color: #333;
    --border-color: #dee2e6;
    --shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

#dictionary-app {
    font-family: var(--font-family);
    background-color: var(--background-color);
    color: var(--text-color);
    border-radius: 12px;
    box-shadow: var(--shadow);
    padding: 30px;
}

#dictionary-app h1 {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 25px;
    font-size: 2.5em;
}

/* --- 搜索区域样式 --- */
#dictionary-app .search-box {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

#dictionary-app #wordInput {
    flex-grow: 1;
    padding: 15px;
    font-size: 1.1em;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    transition: border-color 0.3s, box-shadow 0.3s;
}

#dictionary-app #wordInput:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.25);
}

#dictionary-app #searchButton {
    padding: 15px 25px;
    font-size: 1.1em;
    font-weight: bold;
    color: #fff;
    background-color: var(--primary-color);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.1s;
}

#dictionary-app #searchButton:hover {
    background-color: #0056b3;
}

#dictionary-app #searchButton:active {
    transform: scale(0.98);
}

/* --- 结果展示区域样式 --- */
#dictionary-app #resultContainer {
    margin-top: 20px;
    font-size: 1.05em;
    line-height: 1.6;
}

#dictionary-app .result-card {
    background-color: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

#dictionary-app .word-title {
    font-size: 2.2em;
    font-weight: bold;
    color: var(--text-color);
    margin-bottom: 5px;
}

#dictionary-app .phonetic {
    font-size: 1.2em;
    color: var(--secondary-color);
    margin-bottom: 10px;
}

#dictionary-app .origin {
    font-style: italic;
    color: #555;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

#dictionary-app .part-of-speech {
    font-size: 1.3em;
    font-weight: bold;
    color: var(--primary-color);
    margin-top: 20px;
    margin-bottom: 10px;
}

#dictionary-app .definition-item {
    margin-bottom: 15px;
}

#dictionary-app .definition-text {
    margin-bottom: 5px;
}

#dictionary-app .example {
    color: #555;
    font-style: italic;
    padding-left: 20px;
    border-left: 3px solid #ccc;
}

#dictionary-app .synonyms, #dictionary-app .antonyms {
    margin-top: 5px;
    font-size: 0.9em;
}

#dictionary-app .synonyms span, #dictionary-app .antonyms span {
    display: inline-block;
    background-color: #e9ecef;
    color: #495057;
    padding: 3px 8px;
    border-radius: 5px;
    margin-right: 5px;
    margin-top: 5px;
}

#dictionary-app .error-message, #dictionary-app .loading-message {
    text-align: center;
    padding: 20px;
    font-size: 1.2em;
    color: var(--secondary-color);
}

#dictionary-app .error-message {
    color: #dc3545;
    font-weight: bold;
}