.model-selection {
    padding: 50px 0 60px;
    background: #FFFFFF;
}

.model-selection .container-inner {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 24px;
}

.model-table-wrap {
    background: #FFFFFF;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    overflow: auto;
    max-height: 560px;
    scrollbar-width: thin;
    scrollbar-color: #159D92 #F7F9FC;
}

.model-table-wrap::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

.model-table-wrap::-webkit-scrollbar-track {
    background: #F7F9FC;
    border-radius: 3px;
}

.model-table-wrap::-webkit-scrollbar-thumb {
    background: #159D92;
    border-radius: 3px;
}

.model-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    min-width: 900px;
}

.model-table thead th {
    background: #0F499D;
    color: #FFFFFF;
    padding: 14px 16px;
    text-align: left;
    font-weight: 600;
    font-size: 0.9rem;
    white-space: nowrap;
    position: sticky;
    top: 0;
    z-index: 10;
}


.model-table tbody tr:hover {
    background: rgba(21, 157, 146, 0.04);
}

.model-table tbody tr.current-model {
    background: rgba(21, 157, 146, 0.08);
}

.model-table tbody tr.current-model td:first-child {
    position: relative;
    font-weight: 700;
    color: #159D92;
}

.model-table tbody tr.current-model td:first-child::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: #159D92;
    border-radius: 0 2px 2px 0;
}



.product-chevron-right {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-top: 2px solid var(--accent);
    border-right: 2px solid var(--accent);
    transform: rotate(45deg);
    margin: 0 5px 0 0;
    transition: var(--transition);
}

.series-row.expanded .product-chevron-right {
    transform: rotate(135deg);
}

.tb_1 .param-table tr td {
    background: var(--primary);
    color: var(--white);
    padding: 14px 16px;
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    white-space: nowrap;
    border-bottom: none;
}


.tb_1 .param-table-wrap {
    overflow: hidden;
}

/* 操作按钮 */
.action-btns {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.td-icon-wrap .pro-spirite {
    display: inline-block;
    width: 24px;
    height: 24px;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    cursor: pointer;
    transition: var(--transition);
}

.td-icon-wrap .pro-spirite:hover {
    transform: scale(1.1);
}






.param-table-wrap {
    background: var(--white);
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    max-height: 520px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--accent) var(--light-bg);
}

.param-table-wrap::-webkit-scrollbar {
    width: 6px;
}

.param-table-wrap::-webkit-scrollbar-track {
    background: var(--light-bg);
}

.param-table-wrap::-webkit-scrollbar-thumb {
    background: var(--accent);
    border-radius: 3px;
}

.param-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 1rem;
    min-width: 1000px;
}

.param-table thead th {
    background: var(--primary);
    color: var(--white);
    padding: 14px 16px;
    text-align: left;
    font-weight: 600;
    font-size: 0.95rem;
    white-space: nowrap;
    position: sticky;
    top: 0;
    z-index: 10;
}

.param-table tbody tr.series-row {
    cursor: pointer;
    transition: var(--transition);
    border-bottom: 1px solid var(--border-color);
}

.param-table tbody tr.series-row:hover {
    background: rgba(21, 157, 146, 0.04);
}

.param-table tbody tr.series-row td {
    padding: 14px 16px;
    vertical-align: middle;
}

.param-table tbody tr.series-row td:first-child {
    font-weight: 600;
    color: var(--primary);
}

.param-table tbody tr.series-row.hidden {
    display: none;
}


.model-sub-row {
    display: none;
    background: #FAFBFD;
}

.model-sub-row.visible {
    display: table-row;
}

.model-sub-row td {
    padding: 10px 16px;
    font-size: 0.96rem;
    color: var(--text-gray);
    border-bottom: 1px solid #f0f0f0;
    vertical-align: middle;
}

.model-sub-row td:first-child {
    color: var(--text-dark);
    font-weight: 500;
}

.model-sub-row:last-child td {
    border-bottom: 1px solid var(--border-color);
}

.model-sub-row td a.models-a {
    color: var(--text-dark);
}

.model-sub-row td a.models-a:hover {
    color: var(--accent);
}

.btn-ds {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 5px 12px;
    border-radius: 4px;
    font-weight: 600;
    color: var(--primary);
    background: rgba(15, 73, 157, 0.08);
    transition: var(--transition);
    white-space: nowrap;
}

.btn-ds:hover {
    background: var(--primary);
    color: var(--white);
}

.btn-sample {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 5px 14px;
    border-radius: 20px;
    font-weight: 600;
    color: var(--white);
    background: var(--accent);
    transition: var(--transition);
    white-space: nowrap;
    cursor: pointer;
    border: none;
}

.btn-sample:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(21, 157, 146, 0.3);
}

.no-filter-result {
    display: none;
    padding: 40px 20px;
    text-align: center;
    color: var(--text-gray);
    font-size: 0.95rem;
}

.no-filter-result i {
    font-size: 2rem;
    margin-bottom: 12px;
    display: block;
    opacity: 0.4;
}



/* 提示文字 */
.products-tips {
    padding: 12px 0 0;
    font-size: 0.95rem;
    color: var(--text-gray);
    font-style: italic;
}

.not-found {
    text-align: center;
    padding: 20px;
}

.not-found a {
    color: var(--accent);
    font-weight: bold;
    text-decoration: underline;
    font-style: italic;
}

.slide-tips {
    display: none;
}

@media (max-width: 900px) {

    .slide-tips {
        display: block;
    }
}