/* 
 * 启宇科技官方网站 - 自定义样式覆盖文件
 * Author: 启宇科技开发团队
 * Description: 专门用于覆盖第三方组件默认样式的自定义CSS
 * 注意：此文件用于覆盖组件样式，组件升级时不会影响这里的自定义样式
 */

/* ========== Bootstrap 组件样式覆盖 ========== */

/* 导航栏自定义样式 */
.navbar {
  background-color: rgba(255, 255, 255, 0.95) !important;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  transition: all 0.3s ease;
  padding: 1rem 0;
}

.navbar.scrolled {
  background-color: rgba(255, 255, 255, 0.98) !important;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

/* 导航品牌自定义 */
.navbar-brand {
  font-weight: 600;
  font-size: 1.5rem;
  color: #1e293b !important;
  display: flex;
  align-items: center;
  transition: all 0.3s ease;
}

.navbar-brand:hover {
  color: #2563eb !important;
  transform: translateY(-1px);
}

/* 导航链接自定义样式 */
.navbar-nav .nav-link {
  font-weight: 500;
  color: #1e293b !important;
  padding: 0.5rem 1rem !important;
  margin: 0 0.5rem;
  border-radius: 8px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.navbar-nav .nav-link:hover {
  color: #2563eb !important;
  background-color: rgba(37, 99, 235, 0.1);
}

/* 普通导航链接的底部横条动画 */
.navbar-nav .nav-link:not(.dropdown-toggle)::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #2563eb, #3b82f6);
  transition: all 0.4s cubic-bezier(0.4, 0.0, 0.2, 1);
  transform: translateX(-50%);
  border-radius: 1px;
  z-index: 1;
}

.navbar-nav .nav-link:not(.dropdown-toggle):hover::after,
.navbar-nav .nav-link:not(.dropdown-toggle).active::after {
  width: 85%;
}

/* 下拉菜单链接的底部横条动画 */
.navbar-nav .nav-link.dropdown-toggle::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #2563eb, #3b82f6);
  transition: all 0.4s cubic-bezier(0.4, 0.0, 0.2, 1);
  transform: translateX(-50%);
  border-radius: 1px;
  z-index: 10;
}

.navbar-nav .nav-link.dropdown-toggle:hover::before,
.navbar-nav .nav-link.dropdown-toggle.active::before {
  width: 85%;
}

.navbar-nav .nav-link.dropdown-toggle {
  position: relative;
}

/* 光扫过效果 - 只应用于普通导航链接 */
.navbar-nav .nav-link:not(.dropdown-toggle)::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.05), transparent);
  transform: translateX(-100%);
  transition: transform 0.6s ease;
}

.navbar-nav .nav-link:not(.dropdown-toggle):hover::before {
  transform: translateX(100%);
}

/* 下拉菜单样式覆盖 */
.dropdown-menu {
  border: none !important;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1) !important;
  border-radius: 12px !important;
  padding: 1rem !important;
  margin-top: 0.5rem !important;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  background: rgba(255, 255, 255, 0.98) !important;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  min-width: 220px;
}

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

/* 桌面端悬停显示下拉菜单 */
@media (min-width: 992px) {
  .dropdown-hover:hover .dropdown-menu,
  .dropdown-hover .dropdown-menu:hover,
  .dropdown-hover .dropdown-menu.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    display: block;
  }
  
  /* 下拉菜单箭头样式覆盖 */
  .navbar-nav .nav-link.dropdown-toggle::after {
    display: inline-block !important;
    margin-left: 0.255em;
    vertical-align: 0.255em;
    content: "";
    border-top: 0.3em solid;
    border-right: 0.3em solid transparent;
    border-bottom: 0;
    border-left: 0.3em solid transparent;
    transition: transform 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
    position: relative !important;
    z-index: 2;
  }
  
  .dropdown-hover:hover .nav-link.dropdown-toggle::after,
  .dropdown-hover[aria-expanded="true"] .nav-link.dropdown-toggle::after {
    transform: rotate(180deg);
  }
  
  .dropdown-menu {
    margin-top: 0 !important;
    border-top: 2px solid transparent;
  }
}

/* 下拉菜单项自定义样式 */
.dropdown-item {
  border-radius: 8px !important;
  padding: 1rem 1.5rem !important;
  transition: all 0.4s cubic-bezier(0.4, 0.0, 0.2, 1) !important;
  font-weight: 500 !important;
  color: #1e293b !important;
  display: flex !important;
  align-items: center !important;
  position: relative !important;
  overflow: hidden !important;
}

/* 子菜单左侧滑入横条效果 */
.dropdown-item::before {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #2563eb, #06b6d4);
  transition: width 0.4s cubic-bezier(0.4, 0.0, 0.2, 1);
  border-radius: 1px;
}

/* 子菜单背景色渐变 */
.dropdown-item::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, rgba(37, 99, 235, 0.1), rgba(6, 182, 212, 0.05));
  transition: width 0.3s ease;
  z-index: -1;
}

.dropdown-item:hover::before {
  width: 100%;
}

.dropdown-item:hover::after {
  width: 100%;
}

.dropdown-item:hover {
  color: #2563eb !important;
  transform: translateX(6px) !important;
  background-color: transparent !important;
}

.dropdown-item i {
  color: #2563eb !important;
  transition: all 0.3s ease !important;
  width: 20px !important;
  margin-right: 8px !important;
}

.dropdown-item:hover i {
  color: #1d4ed8 !important;
  transform: scale(1.1) !important;
}

.dropdown-divider {
  margin: 0.5rem 0 !important;
  border-color: rgba(37, 99, 235, 0.1) !important;
}

/* ========== 按钮组件样式覆盖 ========== */
.btn {
  font-weight: 500 !important;
  border-radius: 12px !important;
  padding: 1rem 2rem !important;
  transition: all 0.3s ease !important;
  border: none !important;
  position: relative !important;
  overflow: hidden !important;
}

.btn-primary {
  background: linear-gradient(135deg, #2563eb, #1d4ed8) !important;
  color: #ffffff !important;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1) !important;
}

.btn-primary:hover {
  transform: translateY(-2px) !important;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1) !important;
  background: linear-gradient(135deg, #1d4ed8, #2563eb) !important;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.btn:hover::before {
  left: 100%;
}

/* ========== 响应式适配 ========== */

/* 移动端导航样式覆盖 */
@media (max-width: 991px) {
  .dropdown-menu {
    position: static !important;
    float: none;
    width: auto;
    margin-top: 0;
    box-shadow: none !important;
    border: none;
    background: rgba(248, 250, 252, 0.95) !important;
    border-radius: 0;
    padding: 0;
    transform: none !important;
    opacity: 1 !important;
    visibility: visible !important;
    text-align: left;
  }
  
  .navbar-collapse {
    background: rgba(255, 255, 255, 0.98) !important;
    border-radius: 0 0 15px 15px !important;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1) !important;
    margin-top: 10px !important;
    padding: 0.5rem 0 !important;
  }
  
  .dropdown-toggle::after {
    transition: transform 0.3s ease !important;
  }
  
  .dropdown.show .dropdown-toggle::after {
    transform: rotate(180deg) !important;
  }
}

/* 词云相关样式已移除 */

/* Clients 3D TagCloud: 单行省略号显示客户全称 */
.clients-cloud .tagcloud--item {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  display: inline-block;
  max-width: clamp(140px, 28vw, 340px);
  line-height: 1.15;
}

/* 全局背景粒子画布定位，避免占据文档流导致底部空白 */
#particle-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: -1;
  display: block;
}