#prodDtlFeature {
    position: relative;
}

/* 选项卡导航 */
.tab-nav {
    list-style: none;
    display: flex;
    border-radius: 0;
    overflow: hidden;
    border: 1px solid #2222;
}

.tab-nav li {
    flex: 1;
    text-align: center;
    padding: 10px 10px;
    cursor: pointer;
    color: #000000;
    font-size: 16px;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.tab-nav li:last-child {
    border-right: none;
}

.tab-nav li.active {
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
    background-color: #b31c2a;
}

.tab-nav li.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 4px;
    background-color: #b31c2a;
}

/* 内容区 */
.tab-content {
    display: none;
    padding: 10px;
    border: 1px solid #2222;
    border-top: none;
    margin-bottom: 20px;
    animation: fadeIn 0.5s ease;
}

.tab-content.show {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.content-header {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid #ecf0f1;
}

.content-header h2 {
    color: #2c3e50;
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 10px;
}

.content-header p {
    color: #7f8c8d;
    font-size: 14px;
    font-weight: 500;
}

/* 章节样式 */
.section {
    margin-bottom: 20px;
    background-color: #f8f9fa;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid #e0e0e0;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.section-header {
    padding: 6px 16px;
}

.section-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 10px;
}

.section-description {
    font-size: 14px;
    opacity: 0.9;
    line-height: 1.5;
}

/* 表格样式 */
.plan-table {
    width: 100%;
    border-collapse: collapse;
}

.plan-table thead {
    background-color: #ecf0f1;
}

.plan-table th {
    color: #2c3e50;
    font-weight: 600;
    text-align: left;
    padding: 6px 16px;
    border-bottom: 2px solid #bdc3c7;
    font-size: 14px;
    text-align: right;
}

.plan-table th:first-child {
    width: 40%;
    text-align: left;
}
.plan-table th:last-child {
    text-align: right;
}

.plan-table td {
    padding: 2px 16px;
    border-bottom: 1px solid #ecf0f1;
    vertical-align: middle;
}

.plan-table tbody tr {
    transition: background-color 0.2s ease;
}

.plan-table tbody tr:hover {
    background-color: #f0f7ff;
}

.plan-table tbody tr td {
    text-align: right;
}

.plan-table tbody tr td:first-child {
    text-align: left;
}

.plan-table tbody tr td:last-child {
    text-align: right;
}

.plan-table tbody tr:nth-child(even) {
    background-color: #f9f9f9;
}

.plan-table tbody tr:nth-child(even):hover {
    background-color: #f0f7ff;
}

.item-name {
    color: #2c3e50;
    line-height: 1.5;
    font-size: 14px;
}

.item-value {
    text-align: right;
    font-weight: 500;
    font-size: 14px;
    padding: 4px 6px;
    border-radius: 4px;
    display: inline-block;
}

/* 模糊渐变效果 */
.fade-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: linear-gradient(to bottom, rgba(249, 249, 249, 0) 0%, rgba(249, 249, 249, 0.9) 70%, #f9f9f9 100%);
    display: none;
    pointer-events: none;
}

.fade-overlay.visible {
    display: block;
}

/* 展开/收起按钮 */
.toggle-btn {
    display: inline-block;
    background: #b31c2a;
    color: white;
    padding: 0 10px;
    cursor: pointer;
    border: none;
    outline: none;
    transition: all 0.3s ease;
    margin-top: 15px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.toggle-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.toggle-btn:active {
    transform: translateY(1px);
}