/*
108教材资源 - 听力练习模块样式

*/

/*
108课文听力 - 听力练习模块样式
*/

.hnc-listening-root {
    margin: 24px 0;
    padding: 20px;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    background: #ffffff;
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.08);
    font-family: "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
    color: #1f2937;
}

.hnc-listening-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid #e2e8f0;
}

.hnc-listening-title {
    margin: 0;
    font-size: 23px;
    font-weight: 700;
    color: #0f172a;
}

.hnc-listening-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

/* 主要控制按钮 */
.hnc-listening-btn {
    padding: 8px 16px;
    border-radius: 8px;
    border: 1px solid #3b82f6;
    background-color: #3b82f6 !important;
    background-image: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%) !important;
    color: #ffffff !important;
    font-size: 17px;
    font-weight: 500;
    cursor: pointer;
    transition: transform 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
    box-shadow: 0 6px 14px rgba(59, 130, 246, 0.2);
}

.hnc-listening-btn:focus,
.hnc-listening-btn:focus-visible {
    outline: 2px solid rgba(59, 130, 246, 0.45);
    outline-offset: 2px;
}

.hnc-listening-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 18px rgba(59, 130, 246, 0.28);
}

.hnc-listening-btn--reset {
    background-color: #ef4444 !important;
    background-image: linear-gradient(135deg, #ef4444 0%, #dc2626 100%) !important;
    border-color: #ef4444;
    box-shadow: 0 6px 14px rgba(239, 68, 68, 0.2);
}

.hnc-listening-btn--reset:hover {
    box-shadow: 0 10px 18px rgba(239, 68, 68, 0.28);
}

.hnc-listening-progress {
    position: relative;
    flex: 1 1 180px;
    height: 8px;
    background: #e2e8f0;
    border-radius: 999px;
    overflow: hidden;
}

.hnc-listening-progress span {
    display: block;
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, #10b981, #059669);
    border-radius: inherit;
    transition: width 0.3s ease;
}

.hnc-listening-progress span::after {
    content: attr(data-label);
    position: absolute;
    right: 12px;
    top: -26px;
    font-size: 15px;
    color: #64748b;
}

.hnc-listening-list {
    display: grid;
    gap: 24px;
}

.hnc-listening-section {
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    padding: 20px;
    background: #f8fafc;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.hnc-listening-section:hover {
    border-color: #cbd5e1;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.hnc-listening-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid #e2e8f0;
}

.hnc-listening-section-header h3 {
    margin: 0;
    font-size: 21px;
    color: #1e293b;
    font-weight: 600;
}

.hnc-listening-section-controls {
    display: flex;
    gap: 8px;
}

.hnc-listening-section-btn {
    padding: 4px 10px;
    font-size: 15px;
    border-radius: 6px;
    border: 1px solid #cbd5e1;
    background-color: #ffffff !important;
    color: #475569 !important;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.hnc-listening-section-btn:hover,
.hnc-listening-section-btn:focus-visible {
    background-color: #3b82f6 !important;
    color: #ffffff !important;
    border-color: #3b82f6;
    outline: none;
}

.hnc-listening-audio-container {
    margin-bottom: 20px;
    position: sticky;
    top: 16px;
    z-index: 20;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(4px);
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 12px;
    box-shadow: 0 12px 24px rgba(15, 23, 42, 0.12);
}

.hnc-listening-audio {
    width: 100%;
    border-radius: 8px;
    background: #ffffff;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.12);
}

.hnc-listening-audio-warning {
    color: #ef4444;
    font-size: 17px;
    margin-top: 8px;
    padding: 8px 12px;
    background: #fef2f2;
    border-radius: 6px;
    border-left: 3px solid #ef4444;
}

.hnc-listening-options-area {
    margin-bottom: 20px;
}

.hnc-listening-question {
    margin-bottom: 20px;
    padding: 16px;
    background: #ffffff;
    border-radius: 10px;
    border: 1px solid #e2e8f0;
    transition: all 0.2s ease;
}

.hnc-listening-question.answered {
    border-color: #10b981;
    background: #f0fdf4;
}

.hnc-listening-question-header {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 12px;
    flex-wrap: wrap;
}

.hnc-listening-question-number {
    font-size: 19px;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 0;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    flex-shrink: 0;
}

.hnc-listening-question-toggle {
    padding: 6px 14px;
    font-size: 16px;
    border-radius: 999px;
    border: 1px solid #3b82f6;
    background: rgba(59, 130, 246, 0.12) !important;
    color: #1d4ed8 !important;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
    white-space: nowrap;
    font-weight: 600;
}

.hnc-listening-question-toggle:hover,
.hnc-listening-question-toggle:focus-visible {
    background-color: #3b82f6 !important;
    color: #ffffff !important;
    border-color: #3b82f6;
    outline: none;
}

.hnc-question-open .hnc-listening-question-toggle {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%) !important;
    color: #ffffff !important;
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.18);
}

.hnc-listening-question-prompt {
    display: none;
    margin: 0;
    padding: 12px 14px;
    border-radius: 8px;
    background: #f1f5f9;
    border: 1px dashed #cbd5e1;
    font-size: 17px;
    line-height: 1.6;
    color: #334155;
    flex: 1;
    min-width: 0;
}

.hnc-listening-question.hnc-question-open {
    border-color: #bfdbfe;
    background: #f8fbff;
}

.hnc-listening-strategy {
    margin: 10px 0 14px;
    border: 1px dashed #cbd5e1;
    border-radius: 10px;
    background: #f8fafc;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.hnc-listening-strategy.is-open {
    border-color: #3b82f6;
    box-shadow: 0 6px 18px rgba(59, 130, 246, 0.12);
}

.hnc-listening-strategy-toggle {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 8px;
    border: none;
    background: transparent;
    padding: 12px 16px;
    font-size: 17px;
    font-weight: 600;
    color: #1d4ed8;
    cursor: pointer;
}

.hnc-listening-strategy-toggle:focus-visible {
    outline: 2px solid rgba(59, 130, 246, 0.5);
    outline-offset: 2px;
}

.hnc-listening-strategy-toggle .icon {
    font-size: 19px;
}

.hnc-listening-strategy-toggle .text {
    flex: 1;
    text-align: left;
}

.hnc-listening-strategy-body {
    padding: 0 16px 16px;
    font-size: 16px;
    color: #334155;
    line-height: 1.65;
}

.hnc-listening-strategy-item {
    margin: 8px 0;
}

.hnc-listening-strategy-points {
    margin: 10px 0 0;
    padding-left: 20px;
    list-style: disc;
}

.hnc-listening-strategy-points li {
    margin-bottom: 6px;
}

.hnc-question-answer-toggle {
    margin-top: 10px;
    padding: 6px 16px;
    border-radius: 999px;
    border: 1px solid #2563eb;
    background: rgba(37, 99, 235, 0.12) !important;
    color: #1d4ed8 !important;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
    align-self: flex-start;
}

.hnc-question-answer-toggle:hover,
.hnc-question-answer-toggle:focus-visible {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%) !important;
    color: #ffffff !important;
    border-color: #2563eb;
    outline: none;
}

.hnc-listening-options {
    display: grid;
    gap: 8px;
}

.hnc-listening-option-label {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    background: #ffffff;
}

.hnc-listening-option-label:hover {
    border-color: #94a3b8;
    background: #f8fafc;
}

.hnc-listening-option-label.selected {
    border-color: #3b82f6;
    background: #dbeafe;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.hnc-listening-option-input {
    margin: 0;
    flex-shrink: 0;
    margin-top: 2px;
}

.hnc-listening-option-text {
    flex: 1;
    line-height: 1.5;
    font-size: 18px;
    color: #334155;
}

.hnc-listening-questions-area {
    margin-bottom: 20px;
    padding: 16px;
    background: #f1f5f9;
    border-radius: 10px;
    border: 1px solid #e2e8f0;
}

.hnc-listening-question-text {
    margin-bottom: 12px;
    padding: 8px 0;
    border-bottom: 1px dashed #cbd5e1;
    font-size: 18px;
    line-height: 1.6;
    color: #374151;
}

.hnc-listening-question-text:last-child {
    border-bottom: none;
    margin-bottom: 0;
}

.hnc-listening-answers-area {
    margin: 12px 0;
    padding: 16px;
    background: #ecfdf5;
    border-radius: 10px;
    border: 1px solid #10b981;
}

.hnc-listening-answers-text {
    font-size: 19px;
    font-weight: 600;
    color: #047857;
    line-height: 1.6;
}

.hnc-listening-transcript-area {
    margin-top: 12px;
    padding: 16px;
    background: #fef3c7;
    border-radius: 10px;
    border: 1px solid #f59e0b;
    max-height: 300px;
    overflow-y: auto;
}

.hnc-listening-transcript-area h4 {
    margin: 0 0 12px 0;
    font-size: 19px;
    color: #92400e;
    border-bottom: 1px solid #fbbf24;
    padding-bottom: 8px;
}

.hnc-listening-transcript-text {
    font-size: 17px;
    line-height: 1.7;
    color: #451a03;
    text-align: justify;
}

/* 显示状态的样式控制 */
.hnc-listening-root.hnc-listening-show-questions .hnc-listening-questions-area {
    display: block !important;
}

.hnc-listening-root.hnc-listening-show-answers .hnc-listening-answers-area {
    display: block !important;
}

.hnc-listening-root.hnc-listening-show-transcript .hnc-listening-transcript-area {
    display: block !important;
}

/* 正确答案显示 */
.hnc-listening-root.hnc-listening-show-answers .hnc-listening-correct-answer {
    display: block;
    margin-top: 8px;
    padding: 8px 12px;
    background: #dcfce7;
    border: 1px solid #16a34a;
    border-radius: 6px;
    color: #15803d;
    font-size: 17px;
    font-weight: 600;
}

.hnc-listening-correct-answer {
    display: none;
    margin-top: 10px;
    padding: 10px 14px;
    background: #dcfce7;
    border-radius: 8px;
    border: 1px solid #16a34a;
    color: #15803d;
    font-size: 17px;
}

.hnc-listening-footer {
    margin-top: 16px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 12px;
    flex-wrap: wrap;
}

.hnc-listening-footer-btn {
    padding: 10px 24px;
    border-radius: 10px;
    border: 1px solid #2563eb;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%) !important;
    color: #ffffff !important;
    font-size: 17px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 8px 18px rgba(37, 99, 235, 0.18);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.hnc-listening-footer-btn:hover,
.hnc-listening-footer-btn:focus-visible {
    transform: translateY(-1px);
    box-shadow: 0 12px 22px rgba(37, 99, 235, 0.24);
    outline: none;
}

.hnc-listening-transcript-block {
    margin: 16px 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.hnc-listening-transcript-toggle {
    align-self: flex-start;
    padding: 8px 18px;
    border-radius: 999px;
    border: 1px solid #2563eb;
    background: rgba(37, 99, 235, 0.1) !important;
    color: #1d4ed8 !important;
    font-size: 17px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.hnc-listening-transcript-toggle:hover,
.hnc-listening-transcript-toggle:focus-visible {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%) !important;
    color: #ffffff !important;
    border-color: #2563eb;
    outline: none;
}

.hnc-listening-extra-info {
    display: block;
    margin-top: 8px;
    font-size: 16px;
    color: #64748b;
}

.hnc-listening-extra-info .hnc-listening-source-text {
    font-size: 16px;
    color: #64748b;
    font-weight: 500;
}

.hnc-listening-extra-inline {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-left: 4px;
    font-size: 16px;
    color: #64748b;
}

.hnc-listening-extra-inline a {
    color: #64748b;
    text-decoration: none;
    border-bottom: 1px dotted #cbd5e1;
    padding-bottom: 1px;
    font-weight: 400;
}

.hnc-listening-extra-inline a:hover,
.hnc-listening-extra-inline a:focus-visible {
    color: #475569;
    border-bottom-color: #94a3b8;
    outline: none;
}

.hnc-listening-extra-sep {
    color: #94a3b8;
}

.hnc-listening-source-info {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 8px;
    padding: 6px 10px;
    background: #f8fafc;
    border-left: 3px solid #e2e8f0;
    border-radius: 0 6px 6px 0;
    font-size: 16px;
}

.hnc-listening-source-text {
    color: #64748b;
    font-weight: 500;
}

.hnc-listening-source-link {
    color: #64748b;
    text-decoration: none;
    font-weight: 400;
    transition: color 0.15s ease;
    border-bottom: 1px dotted #cbd5e1;
    padding-bottom: 1px;
}

.hnc-listening-source-link:hover,
.hnc-listening-source-link:focus-visible {
    color: #475569;
    border-bottom-color: #94a3b8;
    outline: none;
}

.hnc-listening-empty {
    text-align: center;
    font-size: 19px;
    color: #64748b;
    padding: 40px 0;
}

/* ========== 学习材料区域 ========== */
.hnc-listening-learning-materials {
    margin-top: 24px;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    background: #f8fafc;
    padding: 20px;
}

.hnc-listening-materials-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.hnc-listening-materials-header h4 {
    margin: 0;
    font-size: 21px;
    font-weight: 600;
    color: #1e293b;
}

.hnc-listening-materials-controls {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.hnc-listening-materials-tab {
    padding: 8px 16px;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    background: #ffffff;
    color: #64748b;
    font-size: 17px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.hnc-listening-materials-tab:hover,
.hnc-listening-materials-tab:focus-visible {
    background: #3b82f6;
    color: #ffffff;
    border-color: #3b82f6;
}

.hnc-listening-materials-tab.active {
    background: #3b82f6;
    color: #ffffff;
    border-color: #3b82f6;
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.15);
}

.hnc-listening-materials-content {
    margin-top: 16px;
}

.hnc-listening-materials-content > div {
    display: none;
    padding: 20px;
    background: #ffffff;
    border-radius: 10px;
    border: 1px solid #f1f5f9;
}

/* ========== 词汇学习区域 ========== */
.hnc-listening-vocabulary-area {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
}

.hnc-listening-vocab-card {
    padding: 16px;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transition: transform 0.2s ease;
}

.hnc-listening-vocab-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.hnc-listening-vocab-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.hnc-listening-vocab-word {
    font-size: 21px;
    font-weight: 600;
    color: #1e293b;
    line-height: 1.3;
}

.hnc-listening-vocab-level {
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    color: #ffffff;
}

.hnc-listening-vocab-phonetic {
    font-family: 'Courier New', monospace;
    font-size: 16px;
    color: #64748b;
    margin: 8px 0;
    font-style: italic;
}

.hnc-listening-vocab-translation {
    margin-bottom: 12px;
    color: #1e293b;
    font-size: 19px;
    font-weight: 500;
}

.hnc-listening-vocab-category,
.hnc-listening-vocab-example,
.hnc-listening-vocab-notes {
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px dashed #e2e8f0;
}

.hnc-listening-vocab-category {
    color: #059669;
    font-size: 17px;
    font-weight: 500;
}

.hnc-listening-vocab-example,
.hnc-listening-vocab-notes {
    color: #475569;
    line-height: 1.6;
    font-size: 17px;
}

.hnc-listening-vocab-example span,
.hnc-listening-vocab-notes span {
    display: inline-block;
    background: #f1f5f9;
    padding: 4px 8px;
    border-radius: 6px;
    margin: 2px 4px 2px 0;
}

.hnc-listening-vocab-example .text {
    color: #059669;
    font-weight: 500;
}

.hnc-listening-vocab-notes .text {
    color: #64748b;
}

/* ========== 表达学习区域 ========== */
.hnc-listening-expressions-area {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.hnc-listening-expression-card {
    padding: 16px;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    transition: transform 0.2s ease;
}

.hnc-listening-expression-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.hnc-listening-expression-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.hnc-listening-expression-text {
    font-size: 20px;
    font-weight: 600;
    color: #1e293b;
    line-height: 1.3;
    flex: 1;
}

.hnc-listening-expression-level {
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    color: #ffffff;
    flex-shrink: 0;
}

.hnc-listening-expression-translation {
    margin-bottom: 12px;
    color: #1e293b;
    font-size: 19px;
    font-weight: 500;
}

.hnc-listening-expression-usage,
.hnc-listening-expression-example,
.hnc-listening-expression-alternative {
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px dashed #e2e8f0;
}

.hnc-listening-expression-usage {
    color: #059669;
    font-size: 17px;
    font-weight: 500;
}

.hnc-listening-expression-example,
.hnc-listening-expression-alternative {
    color: #475569;
    line-height: 1.6;
    font-size: 17px;
}

.hnc-listening-expression-example span,
.hnc-listening-expression-alternative span {
    display: inline-block;
    background: #f1f5f9;
    padding: 4px 8px;
    border-radius: 6px;
    margin: 2px 4px 2px 0;
}

.hnc-listening-expression-example .text {
    color: #059669;
    font-weight: 500;
}

.hnc-listening-expression-alternative .text {
    color: #64748b;
}

/* ========== 文化学习区域 ========== */
.hnc-listening-culture-area {
    display: grid;
    gap: 20px;
    grid-template-columns: 1fr;
}

.hnc-listening-culture-card {
    padding: 20px;
    background: linear-gradient(135deg, #fef7c7 0%, #fff7ed 100%);
    border: 1px solid #fbbf24;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(251, 191, 36, 0.08);
}

.hnc-listening-culture-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(251, 191, 36, 0.12);
}

.hnc-listening-culture-header {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
}

.hnc-listening-culture-title {
    font-size: 23px;
    font-weight: 700;
    color: #1e293b;
    line-height: 1.3;
    margin: 0;
}

.hnc-listening-culture-explanation {
    color: #1e293b;
    font-size: 19px;
    line-height: 1.6;
    flex: 1;
}

.hnc-listening-culture-keywords,
.hnc-listening-culture-activities,
.hnc-listening-culture-significance {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px dashed #fbbf24;
}

.hnc-listening-culture-keywords {
    color: #059669;
}

.hnc-listening-culture-activities {
    color: #475569;
}

.hnc-listening-culture-significance {
    color: #0369a1;
}

.hnc-listening-culture-keywords strong,
.hnc-listening-culture-activities strong,
.hnc-listening-culture-significance strong {
    color: inherit;
}

/* 学习材料空状态 */
.hnc-listening-empty {
    text-align: center;
    font-size: 19px;
    color: #64748b;
    padding: 20px;
    background: #f8fafc;
    border-radius: 8px;
    border: 1px dashed #e2e8f0;
}

/* 滚动条美化 */
.hnc-listening-transcript-area::-webkit-scrollbar {
    width: 8px;
}

.hnc-listening-transcript-area::-webkit-scrollbar-track {
    background: #f1f5f9;
    border-radius: 4px;
}

.hnc-listening-transcript-area::-webkit-scrollbar-thumb {
    background: #fbbf24;
    border-radius: 4px;
}

.hnc-listening-transcript-area::-webkit-scrollbar-thumb:hover {
    background: #f59e0b;
}

/* 引用按钮样式 */
.hnc-listening-quote-btn {
    padding: 4px 8px;
    border: 1px solid #6b7280;
    background: rgba(107, 114, 128, 0.1);
    border-radius: 4px;
    color: #1d4ed8;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.2s ease;
    margin-left: 8px;
    flex-shrink: 0;
}

.hnc-listening-quote-btn:hover {
    background: rgba(107, 114, 128, 0.2);
    color: #ffffff;
    transform: scale(1.05);
}

/* 参考句子提示 */
.hnc-listening-reference-tooltip {
    position: absolute;
    z-index: 2000;
    max-width: 320px;
    padding: 12px 16px;
    border-radius: 10px;
    background: rgba(15, 23, 42, 0.96);
    color: #f8fafc;
    font-size: 16px;
    line-height: 1.6;
    box-shadow: 0 18px 36px rgba(15, 23, 42, 0.25);
    pointer-events: none;
    opacity: 0;
    transform: translateY(-4px);
    transition: opacity 0.15s ease, transform 0.15s ease;
    display: none;
    white-space: pre-line;
}

.hnc-listening-reference-tooltip.is-visible {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.hnc-listening-reference-tooltip::after {
    content: '';
    position: absolute;
    width: 12px;
    height: 12px;
    background: rgba(15, 23, 42, 0.96);
    left: 50%;
    bottom: -6px;
    transform: translateX(-50%) rotate(45deg);
    box-shadow: -2px 2px 4px rgba(15, 23, 42, 0.25);
}

.hnc-listening-reference-tooltip.hnc-listening-reference-tooltip--below {
    transform: translateY(4px);
}

.hnc-listening-reference-tooltip.hnc-listening-reference-tooltip--below::after {
    top: -6px;
    bottom: auto;
    box-shadow: 2px -2px 4px rgba(15, 23, 42, 0.25);
}

.hnc-listening-reference-tooltip-text {
    margin: 0;
    padding: 0;
}

/* 移动端响应式 */
@media (max-width: 768px) {
    .hnc-listening-strategy {
        margin: 8px 0 12px;
    }

    .hnc-listening-strategy-toggle {
        padding: 10px 12px;
        font-size: 16px;
    }

    .hnc-listening-strategy-body {
        padding: 0 12px 12px;
    }

    .hnc-listening-audio-container {
        position: static;
        top: auto;
        z-index: auto;
        padding: 0;
        border: none;
        box-shadow: none;
        background: transparent;
        backdrop-filter: none;
    }

    .hnc-listening-root {
        padding: 16px;
        border-radius: 12px;
    }

    .hnc-listening-header {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }

    .hnc-listening-title {
        font-size: 21px;
        text-align: center;
    }

    .hnc-listening-controls {
        justify-content: center;
        flex-wrap: wrap;
    }

    .hnc-listening-btn {
        font-size: 16px;
        padding: 6px 12px;
    }

    .hnc-listening-source-info {
        margin-top: 6px;
        padding: 4px 8px;
        font-size: 15px;
    }

    .hnc-listening-section {
        padding: 16px;
    }

    .hnc-listening-section-header {
        flex-direction: column;
        gap: 12px;
        align-items: stretch;
    }

    .hnc-listening-section-controls {
        justify-content: center;
    }

    .hnc-listening-option-label {
        padding: 10px;
        gap: 10px;
    }

    .hnc-listening-option-text {
        font-size: 17px;
    }

    .hnc-listening-question {
        padding: 12px;
    }
}

@media (max-width: 480px) {
    .hnc-listening-option-label {
        flex-direction: column;
        text-align: center;
        gap: 8px;
    }

    .hnc-listening-options {
        grid-template-columns: 1fr;
        gap: 12px;
    }
}