/* nav.css - 导航+面包屑+分页（全局加载） */

/* ===== Header ===== */
.header {
  background-color: #2D3436;
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0,0,0,0.15);
}

.header-inner {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: justify;
  -webkit-justify-content: space-between;
  -ms-flex-pack: justify;
  justify-content: space-between;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
  height: 70px;
}

/* Logo */
.logo {
  font-size: 1.25rem;
  font-weight: 600;
  color: #E17055;
  white-space: nowrap;
}

.logo a {
  color: #E17055;
}

.logo a:hover {
  color: #ff8f73;
}

/* Desktop Navigation */
.nav {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
}

.nav-list {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  list-style: none;
}

.nav-item {
  margin-left: 30px;
}

.nav-link {
  color: #FFFFFF;
  font-size: 0.9375rem;
  padding: 5px 0;
  position: relative;
  display: block;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: #E17055;
  transition: width 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
  color: #E17055;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* Dropdown */
.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background-color: #2D3436;
  min-width: 160px;
  padding: 8px 0;
  border-radius: 0 0 4px 4px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  opacity: 0;
  visibility: hidden;
  -webkit-transform: translateY(-10px);
  -ms-transform: translateY(-10px);
  transform: translateY(-10px);
  transition: all 0.3s ease;
  z-index: 1001;
}

.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  -webkit-transform: translateY(0);
  -ms-transform: translateY(0);
  transform: translateY(0);
}

.dropdown-item {
  display: block;
  padding: 10px 20px;
  color: #FFFFFF;
  font-size: 0.875rem;
  white-space: nowrap;
}

.dropdown-item:hover {
  background-color: #1E2729;
  color: #E17055;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  width: 30px;
  height: 24px;
  position: relative;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: #E17055;
  position: absolute;
  left: 0;
  transition: all 0.3s ease;
}

.menu-toggle span:nth-child(1) { top: 0; }
.menu-toggle span:nth-child(2) { top: 11px; }
.menu-toggle span:nth-child(3) { top: 22px; }

.menu-toggle.active span:nth-child(1) {
  top: 11px;
  -webkit-transform: rotate(45deg);
  -ms-transform: rotate(45deg);
  transform: rotate(45deg);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  top: 11px;
  -webkit-transform: rotate(-45deg);
  -ms-transform: rotate(-45deg);
  transform: rotate(-45deg);
}

/* Mobile Navigation */
@media (max-width: 1024px) {
  .menu-toggle {
    display: block;
  }

  .nav {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #2D3436;
    -webkit-transform: translateX(100%);
    -ms-transform: translateX(100%);
    transform: translateX(100%);
    transition: -webkit-transform 0.3s ease;
    transition: transform 0.3s ease;
    transition: transform 0.3s ease, -webkit-transform 0.3s ease;
    z-index: 999;
    overflow-y: auto;
    display: block;
    padding: 20px;
  }

  .nav.active {
    -webkit-transform: translateX(0);
    -ms-transform: translateX(0);
    transform: translateX(0);
  }

  .nav-list {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
    -ms-flex-direction: column;
    flex-direction: column;
  }

  .nav-item {
    margin: 0;
    border-bottom: 1px solid #3d4548;
  }

  .nav-link {
    padding: 15px 0;
    font-size: 1rem;
  }

  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    -webkit-transform: none;
    -ms-transform: none;
    transform: none;
    box-shadow: none;
    background-color: #1E2729;
    display: none;
    padding: 0;
  }

  .dropdown.open .dropdown-menu {
    display: block;
  }

  .dropdown-item {
    padding: 12px 20px;
    border-bottom: 1px solid #2D3436;
  }
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  background-color: #1E2729;
  padding: 15px 0;
  font-size: 0.875rem;
}

.breadcrumb-list {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
  list-style: none;
}

.breadcrumb-item {
  color: #FFFFFF;
}

.breadcrumb-item a {
  color: #E17055;
}

.breadcrumb-item a:hover {
  text-decoration: underline;
}

.breadcrumb-separator {
  margin: 0 10px;
  color: #666666;
}

.breadcrumb-item.active {
  color: #999;
}

/* ===== Pagination ===== */
.pagination {
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  -ms-flex-pack: center;
  justify-content: center;
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  margin-top: 40px;
  gap: 8px;
}

.page-item {
  display: block;
}

.page-link {
  display: block;
  padding: 8px 16px;
  background-color: #fff;
  color: #333333;
  border: 1px solid #DCDDE1;
  border-radius: 4px;
  font-size: 0.875rem;
  transition: all 0.3s ease;
}

.page-link:hover {
  background-color: #E17055;
  color: #fff;
  border-color: #E17055;
}

.page-item.active .page-link {
  background-color: #E17055;
  color: #fff;
  border-color: #E17055;
}

.page-item.disabled .page-link {
  color: #999;
  cursor: not-allowed;
  background-color: #f5f5f5;
}

/* ===== Back to Top ===== */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 44px;
  height: 44px;
  background-color: #E17055;
  color: #fff;
  border-radius: 50%;
  display: -webkit-box;
  display: -webkit-flex;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  -ms-flex-pack: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 998;
  box-shadow: 0 2px 10px rgba(225,112,85,0.4);
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background-color: #c75c3f;
  -webkit-transform: translateY(-3px);
  -ms-transform: translateY(-3px);
  transform: translateY(-3px);
}

.back-to-top svg {
  width: 20px;
  height: 20px;
}

@media (max-width: 768px) {
  .back-to-top {
    bottom: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
  }
}