/* ===================================================
   products.css - 产品中心页 云巴巴风格重构版
   基于PPT六大业务板块：应用解决方案 / 网络通信 / 云计算 / 信息安全 / IT服务 / 智能化系统
   =================================================== */

/* ===================================================
   整体布局
   =================================================== */
.products-page {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 0;
  min-height: 600px;
  border: 1px solid #e8ecf1;
  border-radius: 10px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

/* ===================================================
   左侧分类导航
   =================================================== */
.products-page__sidebar {
  background: #f7f9fc;
  border-right: 1px solid #e8ecf1;
  display: flex;
  flex-direction: column;
  padding: 20px 0;
}

.sidebar-title {
  font-size: 13px;
  font-weight: 700;
  color: #1a1a2e;
  padding: 0 20px 14px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-bottom: 1px solid #e8ecf1;
  margin-bottom: 8px;
}

.sidebar-nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  flex: 1;
}

.sidebar-nav-list li {
  border-left: 3px solid transparent;
  transition: all 0.2s ease;
}

.sidebar-nav-list li:hover {
  background: #eef3ff;
  border-left-color: #c0d4f8;
}

.sidebar-nav-list li.active {
  background: #e8f0ff;
  border-left-color: var(--color-primary);
}

.sidebar-nav-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 20px;
  text-decoration: none;
  color: #4a5568;
  font-size: 13px;
  font-weight: 500;
  transition: color 0.2s;
  cursor: pointer;
}

.sidebar-nav-list li.active a {
  color: var(--color-primary);
  font-weight: 600;
}

.sidebar-nav-list a .nav-icon {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  flex-shrink: 0;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
  transition: all 0.2s;
}

.sidebar-nav-list li.active a .nav-icon {
  background: var(--color-primary);
  color: #fff;
}

.sidebar-nav-list li:hover a .nav-icon {
  transform: scale(1.08);
}

.sidebar-nav-list .nav-arrow {
  margin-left: auto;
  font-size: 12px;
  opacity: 0;
  transition: opacity 0.2s;
}

.sidebar-nav-list li.active .nav-arrow,
.sidebar-nav-list li:hover .nav-arrow {
  opacity: 1;
  color: var(--color-primary);
}

/* ===================================================
   右侧主内容区
   =================================================== */
.products-page__main {
  padding: 28px 28px;
  overflow-y: auto;
}

/* 大分类头部 */
.main-header {
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 2px solid #f0f2f5;
}

.main-header__top {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 8px;
}

.main-header__icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: #fff;
  flex-shrink: 0;
}

.main-header__title {
  font-size: 22px;
  font-weight: 800;
  color: #1a1a2e;
  margin: 0;
  line-height: 1.2;
}

.main-header__count {
  font-size: 12px;
  color: #8a94a8;
  margin-left: auto;
  background: #f0f4ff;
  color: var(--color-primary);
  padding: 3px 10px;
  border-radius: 20px;
  font-weight: 600;
}

.main-header__desc {
  font-size: 13px;
  color: #6b7280;
  line-height: 1.6;
  margin: 0;
}

/* ===================================================
   子分类区块
   =================================================== */
.sub-category {
  margin-bottom: 28px;
}

.sub-category:last-child {
  margin-bottom: 0;
}

.sub-category__header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
  cursor: pointer;
  user-select: none;
}

.sub-category__title {
  font-size: 14px;
  font-weight: 700;
  color: #1a1a2e;
  margin: 0;
}

.sub-category__arrow {
  font-size: 12px;
  color: #8a94a8;
  transition: transform 0.2s;
}

.sub-category__arrow.open {
  transform: rotate(90deg);
}

.sub-category__more {
  margin-left: auto;
  font-size: 12px;
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  opacity: 0;
  transition: opacity 0.2s;
}

.sub-category:hover .sub-category__more {
  opacity: 1;
}

.sub-category__divider {
  height: 1px;
  background: #f0f2f5;
  margin-bottom: 14px;
}

/* ===================================================
   产品列表 - 云巴巴风格（紧凑列表，无卡片）
   =================================================== */
.product-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.product-item {
  background: #fff;
  border: 1px solid #e8ecf1;
  border-radius: 8px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  cursor: pointer;
  transition: all 0.22s ease;
  text-decoration: none;
  position: relative;
}

.product-item:hover {
  border-color: var(--color-primary);
  box-shadow: 0 3px 12px rgba(10,90,170,0.10);
  transform: translateY(-2px);
}

.product-item__badge {
  position: absolute;
  top: 10px;
  right: 10px;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 3px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.product-item__badge--hot {
  background: #fff1e6;
  color: #e65100;
}

.product-item__badge--new {
  background: #e8f5e9;
  color: #2e7d32;
}

.product-item__badge--rec {
  background: #e3f2fd;
  color: var(--color-primary);
}

.product-item__name {
  font-size: 14px;
  font-weight: 700;
  color: #1a1a2e;
  line-height: 1.4;
}

.product-item__desc {
  font-size: 12px;
  color: #6b7280;
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.product-item__brands {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 2px;
}

.product-item__brand {
  font-size: 11px;
  color: var(--color-primary);
  background: #f0f4ff;
  padding: 2px 8px;
  border-radius: 3px;
  font-weight: 500;
  white-space: nowrap;
}

.product-item__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 4px;
  padding-top: 8px;
  border-top: 1px solid #f5f6f8;
}

.product-item__action {
  font-size: 12px;
  color: var(--color-primary);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 3px;
  opacity: 0;
  transition: opacity 0.2s;
}

.product-item:hover .product-item__action {
  opacity: 1;
}

.product-item__price {
  font-size: 11px;
  color: #8a94a8;
}

/* ===================================================
   底部快捷分类导航
   =================================================== */
.quick-nav {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 10px;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid #e8ecf1;
}

.quick-nav__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 14px 8px;
  border-radius: 8px;
  background: #f7f9fc;
  text-decoration: none;
  color: #4a5568;
  font-size: 12px;
  font-weight: 600;
  transition: all 0.2s;
  text-align: center;
  cursor: pointer;
}

.quick-nav__item:hover,
.quick-nav__item.active {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(10,90,170,0.2);
}

.quick-nav__item-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: all 0.2s;
}

.quick-nav__item:hover .quick-nav__item-icon,
.quick-nav__item.active .quick-nav__item-icon {
  background: rgba(255,255,255,0.2);
  color: #fff;
}

/* ===================================================
   咨询浮窗
   =================================================== */
.consult-bar {
  background: linear-gradient(135deg, #0a5aaa, #00b4d8);
  border-radius: 10px;
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 28px;
  color: #fff;
}

.consult-bar__icon {
  font-size: 28px;
  flex-shrink: 0;
}

.consult-bar__text {
  flex: 1;
}

.consult-bar__title {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 2px;
}

.consult-bar__desc {
  font-size: 12px;
  opacity: 0.8;
}

.consult-bar__phone {
  font-size: 18px;
  font-weight: 800;
  color: #fff;
  white-space: nowrap;
  letter-spacing: 0.02em;
}

.consult-bar__btn {
  background: #fff;
  color: var(--color-primary);
  border: none;
  border-radius: 6px;
  padding: 10px 20px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  white-space: nowrap;
  transition: all 0.2s;
  flex-shrink: 0;
}

.consult-bar__btn:hover {
  background: #f0f4ff;
  transform: translateY(-1px);
}

/* ===================================================
   隐藏区域
   =================================================== */
.cat-section {
  display: none;
}

.cat-section.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===================================================
   响应式
   =================================================== */
@media (max-width: 1200px) {
  .product-list {
    grid-template-columns: repeat(2, 1fr);
  }
  .quick-nav {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 1024px) {
  .products-page {
    grid-template-columns: 1fr;
  }
  .products-page__sidebar {
    border-right: none;
    border-bottom: 1px solid #e8ecf1;
    padding: 0;
  }
  .sidebar-title {
    display: none;
  }
  .sidebar-nav-list {
    display: flex;
    flex-direction: row;
    overflow-x: auto;
    padding: 12px;
    gap: 8px;
  }
  .sidebar-nav-list li {
    border-left: none;
    border-radius: 8px;
    flex-shrink: 0;
  }
  .sidebar-nav-list li.active,
  .sidebar-nav-list li:hover {
    border-left: none;
  }
  .sidebar-nav-list a {
    padding: 10px 16px;
    background: #fff;
    border: 1px solid #e8ecf1;
    border-radius: 8px;
    white-space: nowrap;
  }
  .sidebar-nav-list li.active a {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
  }
  .sidebar-nav-list .nav-arrow {
    display: none;
  }
  .quick-nav {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .product-list {
    grid-template-columns: 1fr;
  }
  .products-page__main {
    padding: 20px 16px;
  }
  .quick-nav {
    grid-template-columns: repeat(2, 1fr);
  }
  .consult-bar {
    flex-direction: column;
    text-align: center;
    gap: 10px;
  }
  .consult-bar__phone {
    font-size: 16px;
  }
}