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    <title>冀教版 初二下册 第四单元 所有单词单词选择题 - 亿文单词</title>
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        body {
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        .header-nav {
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            padding: 0 15px;
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        .nav-container {
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            height: 56px;
            display: flex;
            align-items: center;
            justify-content: space-between;
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        .nav-logo {
            font-size: 18px;
            font-weight: 600;
            color: #3498db;
            letter-spacing: 1px;
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        .nav-menu {
            display: flex;
            gap: 28px;
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        .nav-menu a {
            text-decoration: none;
            color: #555;
            font-size: 14px;
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        .nav-menu a:hover,
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            font-weight: 600;
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        .hamburger span {
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        .nav-menu-mobile {
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        .nav-menu-mobile.active {
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        .nav-menu-mobile a {
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        .nav-menu-mobile a.active {
            color: #3498db;
            font-weight: 600;
            background: #f8f9fa;
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        @media (max-width: 768px) {
            .nav-menu {
                display: none;
            }
            .hamburger {
                display: flex;
            }
        }
        .main-wrap {
            flex: 1;
            padding: 24px 16px;
            max-width: 900px;
            margin: 0 auto;
            width: 100%;
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        .footer-info {
            background: white;
            border-top: 1px solid #eee;
            padding: 16px;
            text-align: center;
            color: #888;
            font-size: 13px;
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        .quiz-box {
            background: #fff;
            border-radius: 12px;
            padding: 28px 24px;
            box-shadow: 0 2px 12px rgba(0,0,0,0.06);
            margin-bottom: 20px;
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        .status-bar {
            margin-bottom: 25px;
            padding-bottom: 10px;
            border-bottom: 1px solid #eee;
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        .quiz-title {
            font-size: 18px;
            font-weight: bold;
            color: #2c3e50;
            text-align: center;
            margin-bottom: 12px;
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        .status-row {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 14px;
            color: #333;
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        .status-left {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
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            font-weight: bold;
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        .question {
            font-size: 24px;
            font-weight: bold;
            color: #2c3e50;
            text-align: center;
            margin: 40px 0 30px;
            min-height: 60px;
        }
        .options {
            display: grid;
            gap: 14px;
            margin-top: 20px;
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        .option {
            background: #f8f9fa;
            border: 1px solid #e1e4e8;
            border-radius: 10px;
            padding: 16px 20px;
            font-size: 16px;
            color: #333;
            cursor: pointer;
            transition: all 0.2s;
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        .option:hover {
            background: #eef5ff;
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        .option.correct {
            background: #d4edda !important;
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            color: #155724 !important;
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        .option.wrong {
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        .finish-box {
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            padding: 40px 20px;
            background: #fff;
            border-radius: 12px;
            box-shadow: 0 2px 12px rgba(0,0,0,0.06);
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        .finish-title {
            font-size: 22px;
            color: #2c3e50;
            margin-bottom: 12px;
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        .btn-group {
            margin-top: 20px;
            display: flex;
            gap: 12px;
            justify-content: center;
            flex-wrap: wrap;
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        .restart-btn, .wrong-btn {
            padding: 12px 24px;
            color: #fff;
            border: none;
            border-radius: 8px;
            font-size: 16px;
            cursor: pointer;
        }
        .restart-btn {
            background: #3498db;
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        .wrong-btn {
            background: #e67e22;
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        .result-summary {
            background: #fff;
            padding: 20px;
            border-radius: 12px;
            margin-top: 20px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
            position: relative;
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        .close-detail-btn {
            position: absolute;
            top: 15px;
            right: 15px;
            background: #e74c3c;
            color: white;
            border: none;
            border-radius: 50%;
            width: 28px;
            height: 28px;
            font-size: 16px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        /* 答题完成后隐藏关闭按钮 */
        .result-summary.no-close .close-detail-btn{
            display:none;
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        .result-summary h3 {
            margin-bottom: 15px;
            color: #2c3e50;
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        .result-stats {
            margin-bottom: 15px;
            font-size: 15px;
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        .tab-bar {
            display: flex;
            gap: 10px;
            margin-bottom: 15px;
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        .tab {
            flex: 1;
            padding: 8px;
            text-align: center;
            background: #f1f1f1;
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        .detail-list {
            max-height: 500px;
            overflow-y: auto;
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        .detail-item {
            padding: 12px;
            border-bottom: 1px solid #eee;
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        .detail-en {
            font-weight: bold;
            font-size: 16px;
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        .detail-correct {
            color: #28a745;
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        .detail-wrong {
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