/* 产品列表页面专用样式 — 仅含页面布局与分类树，产品卡片样式复用 products.css */

.products-page-section {
    padding: 40px 0;
    background: #F5F5F5;
    min-height: calc(100vh - 300px);
}

.products-page-section .container-fluid {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 15px;
}

/* ========== 左侧分类树 ========== */

.category-sidebar {
    padding-right: 20px;
}

.category-tree-box {
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    position: sticky;
    top: 80px;
}

.category-tree-title {
    background: #fff;
    color: #333;
    font-size: 17px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: capitalize;
    padding: 18px 20px 10px 20px;
    margin: 0;
    border-bottom: 2px solid rgb(0, 80, 156);
    display: block;
}

.category-tree {
    padding: 8px 0;
    margin: 0;
}

.tree-node {
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: relative;
    transition: background 0.2s ease, color 0.2s ease;
}

/* Level 1 — hover/active 整行蓝底白字 */
.tree-node.level-1 {
    background: transparent;
    padding: 0;
    margin: 2px 0;
}

.tree-node.level-1 .tree-link {
    flex: 1;
    padding: 11px 20px;
    font-size: 16px;
    font-weight: 600;
    color: #333;
}

.tree-node.level-1:hover,
.tree-node.level-1.active {
    background: rgb(0, 80, 156);
}

.tree-node.level-1:hover .tree-link,
.tree-node.level-1.active .tree-link {
    color: #fff;
}

.tree-node.level-1:hover .toggle-icon,
.tree-node.level-1.active .toggle-icon {
    color: #fff;
}

/* Level 2 — hover/active 只改文字颜色 */
.tree-node.level-2 {
    padding: 0;
    background: transparent;
}

.tree-node.level-2 .tree-link {
    flex: 1;
    padding: 9px 20px 9px 32px;
    font-size: 16px;
    color: #555;
}

.tree-node.level-2:hover .tree-link,
.tree-node.level-2.active .tree-link {
    color: rgb(0, 80, 156);
    font-weight: 600;
}

/* Level 3 — hover/active 只改文字颜色 */
.tree-node.level-3 {
    padding: 0;
    background: transparent;
}

.tree-node.level-3 .tree-link {
    flex: 1;
    padding: 8px 20px 8px 48px;
    font-size: 16px;
    color: #777;
}

.tree-node.level-3:hover .tree-link,
.tree-node.level-3.active .tree-link {
    color: rgb(0, 80, 156);
    font-weight: 600;
}

.tree-link {
    display: block;
    text-decoration: none;
    transition: color 0.2s ease;
    color: inherit;
}

.toggle-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 100%;
    padding-right: 10px;
    color: #666;
    cursor: pointer;
    transition: color 0.2s ease;
    font-size: 26px;
    font-weight: bold;
    flex-shrink: 0;
    line-height: 1;
}

.tree-node.level-1 .toggle-icon { padding: 11px 15px; }
.tree-node.level-2 .toggle-icon { padding: 9px 15px; }

/* 关闭状态显示 + */
.toggle-icon.collapsed::before {
    content: "+";
}

/* 展开状态显示 - */
.toggle-icon:not(.collapsed)::before {
    content: "-";
}

.tree-children {
    max-height: 2000px;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

.tree-children.collapsed { max-height: 0; }
.level-2-container { border-left: none; margin-left: 0; }
.level-3-container { border-left: none; margin-left: 0; }

/* ========== 右侧产品展示 ========== */

.products-content { padding-left: 20px; }
.products-header { text-align: center; margin-bottom: 40px; }
.no-products { text-align: center; padding: 60px 20px; color: #999; font-size: 16px; }

/* ========== 分页 ========== */
.pagination-wrapper {
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid #e0e0e0;
}
.pagination-wrapper .pagination {
    margin-bottom: 10px;
}
.pagination-wrapper .page-link {
    color: #333;
    border: 1px solid #ddd;
    padding: 8px 14px;
    margin: 0 3px;
    border-radius: 4px;
    transition: all 0.2s;
}
.pagination-wrapper .page-link:hover {
    background: rgb(0, 80, 156);
    color: #fff;
    border-color: rgb(0, 80, 156);
}
.pagination-wrapper .page-item.active .page-link {
    background: rgb(0, 80, 156);
    color: #fff;
    border-color: rgb(0, 80, 156);
}
.pagination-wrapper .page-item.disabled .page-link {
    color: #ccc;
    background: #f5f5f5;
    border-color: #ddd;
}
.pagination-info {
    text-align: center;
    color: #666;
    font-size: 14px;
    margin-top: 10px;
}

/* ========== 响应式 ========== */

@media (max-width: 1199px) {
    .category-sidebar { padding-right: 15px; }
    .products-content { padding-left: 15px; }
}

@media (max-width: 991px) {
    .products-page-section { padding: 30px 0; }
    .category-sidebar { margin-bottom: 30px; padding-right: 0; }
    .products-content { padding-left: 0; }
    .category-tree-box { position: static; }
    .products-header { margin-bottom: 25px; }
}

@media (max-width: 767px) {
    .products-page-section { padding: 20px 0; }
    .category-tree-title { font-size: 14px; padding: 14px 15px 10px 15px; }
    .tree-node.level-1 .tree-link { padding: 10px 15px; font-size: 15px; }
    .tree-node.level-2 .tree-link { padding: 8px 15px 8px 28px; font-size: 15px; }
    .tree-node.level-3 .tree-link { padding: 7px 15px 7px 42px; font-size: 14px; }
    .products-header { margin-bottom: 20px; }
}

@media (max-width: 576px) {
    .tree-node.level-1 .tree-link { padding: 10px 12px; font-size: 14px; }
    .tree-node.level-2 .tree-link { padding: 8px 12px 8px 24px; font-size: 14px; }
    .tree-node.level-3 .tree-link { padding: 6px 12px 6px 36px; font-size: 13px; }
    .toggle-icon { width: 25px; padding-right: 8px; }
}