/* 基于原网页的完整 CSS */
body {
  min-width: auto;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  padding-top: 70px; /* 为固定导航栏留出空间 */
}

/* 导航栏固定和优化 */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: #fff !important;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1) !important;
}

.navbar-brand {
  font-size: 20px !important;
}

.navbar-nav .nav-link {
  font-size: 16px !important;
  padding: 8px 16px !important;
  color: #333 !important;
  transition: color 0.3s ease;
}

.navbar-nav .nav-link:hover {
  color: #ff6800 !important;
}

/* 下拉菜单样式 */
.navbar .dropdown-menu {
  border: none;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  padding: 8px 0;
  margin-top: 0;
  min-width: 200px;
  display: none;
  opacity: 0;
  transition: opacity 0.3s ease, transform 0.3s ease;
  transform: translateY(-10px);
}

.navbar .dropdown:hover .dropdown-menu {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.navbar .dropdown-item {
  padding: 10px 20px;
  font-size: 15px;
  color: #333;
  transition: all 0.3s ease;
}

.navbar .dropdown-item:hover {
  background-color: #fff5f0;
  color: #ff6800;
  padding-left: 25px;
}

.navbar .dropdown-toggle::after {
  margin-left: 6px;
  vertical-align: middle;
}

.navbar-nav .btn-primary {
  font-size: 16px !important;
  padding: 8px 24px !important;
}

/* 回到顶部按钮 */
#backToTop {
  position: fixed;
  bottom: 40px;
  right: 40px;
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, #0d6efd, #0a58ca);
  color: #fff;
  border: none;
  border-radius: 50%;
  font-size: 24px;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(13, 110, 253, 0.4);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

#backToTop.show {
  opacity: 1;
  visibility: visible;
}

#backToTop:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 16px rgba(13, 110, 253, 0.6);
}

#backToTop:active {
  transform: translateY(-2px);
}

.h1, .h2, .h3, .h4, .h5, .h6, h1, h2, h3, h4, h5, h6 {
  margin-bottom: 0;
}

.colA {
  color: #1F1F1F !important;
}

.colB {
  color: #666 !important;
}

.colC {
  color: #0256FF !important;
}

.colD {
  color: #999 !important;
}

.fs-sm {
  font-size: 14px !important;
}

a {
  transition: all 0.2s ease-out 0s;
}

.flex-1 {
  flex: 1;
}

.pageWrap {
  font-size: 14px;
  line-height: 1.6;
  background-color: #fff;
  color: #1A1A1A;
}

.pageWrap .text-primary {
  color: #ff6800 !important;
}

.pageWrap .border {
  border-color: #F5F0F0 !important;
}

.pageWrap .shadow {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12) !important;
}

.pageWrap .rounded {
  border-radius: 20px !important;
}

.pageWrap .btn {
  font-size: 16px;
  line-height: 34px;
}

.pageWrap .badge {
  border-radius: 4px;
  border-width: 1px;
  border-style: solid;
}

.pageWrap .text-bg-danger {
  background-color: transparent !important;
  border: 1px solid #ff6800;
  color: #ff6800 !important;
  line-height: 16px;
  padding: 0 8px;
  font-size: 12px;
}

.pageWrap .text-bg-secondary {
  background-color: #FFEBEC !important;
  border-color: #F5E0E1;
  color: #ff6800 !important;
}

.pageWrap .text-bg-primary {
  background-color: #ff6800 !important;
  border: 0;
}

/* Banner 区域 */
.pageWrap .pageMain .banner .pc {
  background: url(https://www.cndns.com/cn/geo/app/images/banner-pc.jpg) no-repeat center !important;
  height: 540px;
  background-size: auto 100% !important;
}

.banner .pc {
  background: url(https://www.cndns.com/cn/geo/app/images/banner-pc.jpg) no-repeat center !important;
  height: 540px;
  background-size: auto 100% !important;
}

/* 内容区域 */
.pageWrap .pageMain .content {
  background-color: #f7f7f7;
}

/* 为什么要做 AI GEO - 带背景图的网格 */
.pageWrap .pageMain .content .a .con {
  background: url(https://www.cndns.com/cn/geo/app/images/4.png) no-repeat center;
  height: 500px;
  padding: 30px 0;
}

.pageWrap .pageMain .content .a .con li {
  text-align: center;
  height: 220px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.pageWrap .pageMain .content .a .con span {
  background: linear-gradient(to right, #0090F6, #EA5BE9, #FE4C4C);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* 在AI新流量风口上 */
.pageWrap .pageMain .content .b {
  background: linear-gradient(to bottom, #D5E7FF, #F7F7F7);
}

.pageWrap .pageMain .content .b .poin ul {
  gap: 10px;
}

.pageWrap .pageMain .content .b .poin li {
  text-align: center;
  min-height: 59px;
  line-height: 59px;
  color: #fff;
  font-size: 18px;
  font-weight: bold;
  width: 100%;
  background: url(https://www.cndns.com/cn/geo/app/images/5.png) no-repeat;
  background-size: 100%;
}

/* 产品功能 */
.pageWrap .pageMain .content .c .pic {
  max-width: 335px;
}

.pageWrap .pageMain .content .c dt {
  color: #1f1f1f;
  font-size: 24px !important;
}

.pageWrap .pageMain .content .c dd {
  color: #3D3D3D;
  font-size: 16px;
}

/* 价格区域 */
.pageWrap .pageMain .content .d {
  background: linear-gradient(to bottom, #E8CAFF, #F7F7F7, #F7F7F7);
}

.pageWrap .pageMain .content .d li {
  max-width: 580px !important;
}

/* 推广时间按钮组 */
.pageWrap .pageMain .content .d .btnGroput a {
  min-width: 88px;
  padding: 8px 16px;
  border: 1px solid #dbdbdb;
  border-radius: 8px;
  text-decoration: none;
  color: #333;
  background: #fff;
  transition: all 0.3s ease;
  display: inline-block;
  text-align: center;
}

.pageWrap .pageMain .content .d .btnGroput a:hover {
  border-color: #ff6800;
  color: #ff6800;
}

.pageWrap .pageMain .content .d .btnGroput a.cur {
  background: #ff6800;
  border-color: #ff6800;
  color: #fff;
}

.pageWrap .pageMain .content .d .bot .btn {
  background: linear-gradient(to right, #FF6800, #F8A203);
  border: 0;
}

.pageWrap .pageMain .content .d dd .input-group {
  width: 120px;
  height: 36px;
}

.pageWrap .pageMain .content .d dd .btn {
  border-color: #dbdbdb;
  color: #000;
  font-size: 20px;
  width: 36px;
  text-align: center;
}

.pageWrap .pageMain .content .d dd .form-control {
  text-align: center;
  border-color: #dbdbdb;
}

.pageWrap .pageMain .content .d dd .form-select {
  border-color: #dbdbdb;
}

.pageWrap .pageMain .content .d .bot .btn-primary {
  background-color: #ff6800;
  border-color: #ff6800;
}

/* 案例展示 */
.pageWrap .pageMain .content .e {
  background: linear-gradient(to bottom, #D5E7FF, #F7F7F7);
}

/* 服务优势 */
.pageWrap .pageMain .content .f .box {
  background: linear-gradient(70deg, #EBF5FF, #fff);
  position: relative;
  overflow: hidden;
}

.pageWrap .pageMain .content .f dl {
  position: relative;
  z-index: 2;
}

.pageWrap .pageMain .content .f .bg {
  height: 100%;
  position: absolute;
  right: 0;
  bottom: -10%;
}

.pageWrap .pageMain .content .f dt {
  font-size: 40px;
  font-weight: bold;
}

.pageWrap .pageMain .content .f dd {
  color: #666;
  font-size: 18px;
}

.pageWrap .pageMain .content .f li:nth-child(2) .box {
  background: linear-gradient(70deg, #FEF7EC, #fff);
}

.pageWrap .pageMain .content .f li:nth-child(3) .box {
  background: linear-gradient(70deg, #EEF2FF, #fff);
}

/* 标题样式 */
.pageWrap .pageMain .title h2 {
  font-size: 40px !important;
}

.pageWrap .pageMain .title p {
  font-size: 16px;
}

/* 响应式 */
@media (min-width: 768px) {
  body {
    min-width: 1200px;
  }

  .pageWrap {
    font-size: 13px;
  }

  .pageWrap .container-md {
    max-width: 1200px;
  }

  .pageWrap .pageMain .content .a .con li:nth-child(n) {
    padding-left: 15%;
    text-align: left;
  }

  .pageWrap .pageMain .content .a .con li:nth-child(2n) {
    padding-left: 20%;
  }

  .pageWrap .pageMain .content .a .con dl {
    margin-top: 10px;
  }

  .pageWrap .pageMain .content .a .con dd {
    font-size: 18px;
    max-width: 224px;
  }

  .pageWrap .pageMain .content .a .con .fs-5 {
    font-size: 32px !important;
  }

  .pageWrap .pageMain .content .a .con .display-4 {
    font-size: 40px !important;
  }

  .pageWrap .pageMain .content .b .con {
    width: 1140px;
    margin-right: auto;
    margin-left: auto;
  }

  .pageWrap .pageMain .content .b .con li {
    width: 369px;
  }

  .pageWrap .pageMain .content .c .title p {
    max-width: 915px;
    margin-left: auto;
    margin-right: auto;
  }

  .pageWrap .pageMain .content .d .col {
    max-width: calc(400px + 3rem);
  }

  .pageWrap .pageMain .content .d h5 {
    font-size: 24px !important;
  }

  .pageWrap .pageMain .content .d .fs-6 {
    font-size: 20px !important;
  }

  .pageWrap .pageMain .content .d .btnGroput a {
    min-width: 88px;
  }
}

@media (min-width: 1400px) {
  .pageWrap .container-md {
    max-width: 1320px;
  }

  .pageWrap .pageMain .content .a .con li:nth-child(n) {
    padding-left: 150px;
  }

  .pageWrap .pageMain .content .a .con li:nth-child(2n) {
    padding-left: 250px;
  }

  .pageWrap .pageMain .content .a .con .display-4 {
    font-size: 48px !important;
  }
}

@keyframes zoomIn {
  0% {
    opacity: 0;
    transform: scale3d(0.3, 0.3, 0.3);
  }
  50% {
    opacity: 1;
  }
}