/* 导航栏容器（特殊类名：proj897_nav_container） */
.proj897_nav_container {
  font-family: "sc-regular";
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100px;
  position: relative;
  margin-left: auto;
}
/* 导航项通用样式（特殊类名：proj897_nav_item） */
.proj897_nav_item {
  margin: 0 40px;
  font-size: 18px;
  color: #fff;
  cursor: pointer;
  position: relative;
  transition: all 0.3s ease;
}
.proj897_nav_item.active {
  font-family: "sc-bold";
}
/* 带下拉的导航项（特殊类名：proj897_nav_dropdown_item） */
.proj897_nav_dropdown_item {
  display: flex;
  align-items: center;
}
/* 下拉箭头（特殊类名：proj897_dropdown_arrow_icon） */
.proj897_dropdown_arrow_icon {
  display: inline-block;
  margin-left: 8px;
  font-size: 24px;
  transition: transform 0.3s ease;
  width: 15px;
  height: 18px;
  background: url("https://file.gdcar.net/company-website/resources/assets/bussiness/downarrow.png")
    no-repeat;
  background-size: 100% 100%;
}
/* 箭头旋转（展开状态）（特殊类名：proj897_arrow_rotate_active） */
.proj897_arrow_rotate_active {
  transform: rotate(180deg);
}
/* 下拉菜单容器（特殊类名：proj897_dropdown_menu_box） */
.proj897_dropdown_menu_box {
  font-family: "sc-regular";
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  margin-top: 10px;
  background: linear-gradient(
    180deg,
    rgba(245, 250, 255, 0.25) 0%,
    rgba(220, 235, 250, 0.18) 100%
  );
  /* 白色半透边框 */
  border: 1px solid rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(20px); /* 毛玻璃增强白色质感 */
  border-radius: 4px;
  min-width: 170px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 999;
}
/* 下拉菜单展开状态（特殊类名：proj897_menu_show_active） */
.proj897_menu_show_active {
  opacity: 1;
  visibility: visible;
}
/* 下拉菜单项（特殊类名：proj897_dropdown_menu_item） */
.proj897_dropdown_menu_item {
  padding: 15px 20px;
  font-size: 14px;
  color: #fff;
  text-align: center;
  border-bottom: 1px solid rgba(135, 206, 235, 0.2);
  cursor: pointer;
  transition: all 0.2s ease;
}
.proj897_dropdown_menu_item:last-child {
  border-bottom: none;
}
/* hover 加粗效果 */
.proj897_dropdown_menu_item:hover {
  font-weight: bold;
  color: #fff;
}
/* 联系我们的箭头（特殊类名：proj897_contact_arrow_icon） */
.proj897_contact_arrow_icon {
  display: inline-block;
  margin-left: 8px;
  font-size: 24px;
  transition: transform 0.3s ease;
  width: 15px;
  height: 18px;
  background: url("https://file.gdcar.net/company-website/resources/assets/bussiness/downarrow.png")
    no-repeat;
  background-size: 100% 100%;
}
.container-common {
  width: 100%;
  font-family: "sc-regular";
}
/* 第一屏：Banner 区域 */
.container-first {
  height: 960px;
  background: url("https://file.gdcar.net/company-website/resources/assets/bussiness/business1.png")
    no-repeat center center;
  background-size: 100% 100%;
  position: relative;
}
.container-first .banner-text {
  text-align: right;
  position: absolute;
  color: #fff;
  right: 160px;
  bottom: 90px;
}
.container-first .banner-text .word {
  font-size: 60px;
  margin-bottom: 10px;
  font-family: "sc-bold";
}
.container-first .banner-text p {
  font-size: 24px;
}
/* 第二屏：AIGC 视频生产介绍 */
.container-second {
  background: #f8f8f8;
}
.common-title-wrapper {
  padding: 160px;
  padding-bottom: 90px;
}
.common-title {
  font-family: "sc-bold";
  font-size: 38px;
  color: #384256;
  margin-bottom: 10px;
}
.common-desc {
  font-size: 24px;
  color: #667281;
}
.container-second .video-grid {
  display: flex;
  margin: 0 auto;
}
.container-second .video-item {
  flex: 1;
  position: relative;
  height: 720px;
  overflow: hidden;

  background-size: 150% 100%;
  background-position: center center;
}
.container-second .video-item:nth-child(1) {
  background: url("https://file.gdcar.net/company-website/resources/assets/bussiness/aigcvideo1.png")
    no-repeat;
  background-size: 150% 100%;
  background-position: center center;
}
.container-second .video-item:nth-child(2) {
  background: url("https://file.gdcar.net/company-website/resources/assets/bussiness/aigcvideo2.png")
    no-repeat;
  background-size: 150% 100%;
  background-position: center center;
}
.container-second .video-item:nth-child(3) {
  background: url("https://file.gdcar.net/company-website/resources/assets/bussiness/sjbg4.png")
    no-repeat;
  background-size: 150% 100%;
  background-position: center center;
}
.container-second .video-item .mask-item {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
  padding-top: 225px;
}
.container-second .video-item .mask-item .video-title p {
  color: #fff !important;
  font-size: 26px;
  margin-bottom: 10px;
  text-align: center;
}
.container-second .video-item .play-btn {
  margin-top: 60px;
  width: 61px;
  height: 61px;
  background: url("https://file.gdcar.net/company-website/resources/assets/bussiness/playBtn.png")
    no-repeat center center;
  background-size: 100% 100%;
}
/* 视频默认隐藏 */
.container-second .video-player {
  display: none;
  width: 100%;
  height: 100%;
  object-fit: fill;
}

/* 激活项变宽 */
.container-second .video-item.active {
  flex: 2.5; /* 非激活项 flex:1，激活项 flex:3，视觉上更宽 */
  transition: flex 0.4s ease;
  background: none !important;
}
.container-second .video-item {
  transition: flex 0.4s ease;
}

/* 激活项隐藏遮罩 */
.container-second .video-item.active .mask-item {
  display: none;
}

/* 激活项显示视频 */
.container-second .video-item.active .video-player {
  display: block;
  cursor: pointer;
}
/* 第三屏：能力与案例介绍 */
.container-third {
  /* max-width: 1200px;
  margin: 0 auto; */
}
.container-third .section {
  margin-bottom: 80px;
  padding: 0 160px;
}

.container-third .two-col {
  display: flex;
  flex-wrap: nowrap;

  margin-bottom: 40px;
}
.container-third .two-col img {
  width: 55%;

  border-radius: 8px;
}
.container-third .two-col img:nth-child(2) {
  position: relative;
  left: -10%;
}
.container-third .case-block {
  display: grid;
  grid-template-columns: 35% 65%;
  gap: 0;
  background: #0a3d62;
  color: #fff;
  border-radius: 8px;
  overflow: hidden;
}
.container-third .case-block .case-text {
  padding: 40px;
}
.container-third .case-block .case-text h3 {
  font-size: 20px;
  margin-bottom: 20px;
}
.container-third .case-block .case-text p {
  color: #eee;
  font-size: 14px;
  line-height: 1.8;
}
.container-third .case-block .case-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
/* 第四屏轮播修正样式 */
.container-fourth {
  background: #fff;
}
.human-machine-section {
  width: 100%;
  background-color: #f8f8f8;
  font-family: "Microsoft Yahei", sans-serif;
}

/* 核心：左文右图布局（左侧固定，右侧轮播） */
.case-main-container {
  display: grid;
  grid-template-columns: 45% 55%;
  gap: 0;
  width: 100%;
}

/* 左侧固定文字区域 */
.case-text-fixed {
  background-color: #0a3d62;
  color: #fff;
  padding: 150px 109px;
  padding-bottom: 279px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative; /* 用于进度条定位 */
}
.case-text-fixed h3 {
  font-size: 30px;
  margin-bottom: 24px;
  font-weight: 500;
  color: #fff;
}
.case-text-fixed p {
  font-size: 18px;
  color: rgba(255, 255, 255, 0.8);
}

/* 唯一的进度条（固定在左侧底部） */
.case-dots {
  display: flex;
  gap: 12px;
  cursor: pointer;
  position: absolute;
  bottom: 80px;
  left: 109px;
}
.case-dots span {
  width: 60px;
  height: 4px;
  background-color: rgba(255, 255, 255, 0.3);
  transition: background-color 0.3s ease;
}
.case-dots span.active {
  background-color: #fff;
}
.case-dots span:hover {
  background-color: rgba(255, 255, 255, 0.7);
}

/* 右侧图片轮播区域 - 核心修改：添加滑动动画 */
.case-image-carouselInstance {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden; /* 隐藏超出部分 */
}
.carouselInstance-wrapper {
  width: 400%; /* 4张图 = 4*100% */
  height: 100%;
  display: flex; /* 横向排列所有图片 */
  transition: transform 0.5s ease; /* 平滑滑动动画 */
}
.carouselInstance-item {
  width: 25%; /* 4张图 = 100%/4 = 25% */
  height: 100%;
  /* 移除display: none，改为通过transform控制显示 */
}
.carouselInstance-item img {
  width: 100%;
  height: 100%;
  display: block;
  max-height: 650px;
}
.case-image-carouselInstance:hover .carouselInstance-btn1 {
  display: block;
}
.case-image-carouselInstance:hover .carouselInstance-btn2 {
  display: block;
}
/* 轮播控制按钮（仅在右侧图片区域） */
.carouselInstance-btn1 {
  display: none;

  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  padding: 8px;
  border-radius: 50%;
  background-color: rgba(0, 0, 0, 0.5);
  color: #fff;
  border: none;
  font-size: 20px;
  cursor: pointer;
  z-index: 10;
  left: 20px;
}
/* 轮播控制按钮（仅在右侧图片区域） */
.carouselInstance-btn2 {
  display: none;

  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  padding: 8px;
  border-radius: 50%;
  background-color: rgba(0, 0, 0, 0.5);
  color: #fff;
  border: none;
  font-size: 20px;
  cursor: pointer;
  z-index: 10;
  right: 20px;
}

.prev-btn {
  left: 20px;
  width: 20px;
  height: 20px;
  background: url("https://file.gdcar.net/company-website/resources/assets/bussiness/leftarrow.png")
    no-repeat;
  background-size: 100% 100%;
}
.next-btn {
  width: 20px;
  height: 20px;
  background: url("https://file.gdcar.net/company-website/resources/assets/bussiness/rightarrow.png")
    no-repeat;
  background-size: 100% 100%;
}

.container-five {
  padding-bottom: 90px;
}
.container-five .imgC {
  padding: 0 160px;
}
.container-five .imgC img {
  width: 100%;
  height: auto;
  background: url("https://file.gdcar.net/company-website/resources/assets/bussiness/bussinessfooter.png")
    no-repeat;
  background-size: 100% 100%;
  margin: 0 auto;
}
/* 页脚基础样式 */
.gd-footer {
  width: 100%;
  background-color: #001533;
  color: #fff;
  padding: 60px 20px 20px;
  font-family: "Microsoft Yahei", sans-serif;
}
.gd-footer__container {
  margin: 0 190px;
  display: flex;
  gap: 129px;
}
.gd-footer__left,
.gd-footer__right {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 30px;
}

/* 标题样式 */
.gd-footer__section-title {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 32px;
  font-weight: 600;
  margin-bottom: 40px;
}
.gd-footer__divider {
  width: 100%;
  height: 1px;
  background-color: rgba(255, 255, 255, 0.2);
  margin-bottom: 30px;
}
.gd-footer__divider--full {
  height: 1px;
  background-color: rgba(255, 255, 255, 0.6);

  margin: 30px 190px;
}

/* 联系信息样式 */
.gd-footer__contact {
  background-color: rgba(10, 61, 98, 0.6);
  padding: 30px;
  border-radius: 4px;
}
.gd-footer__contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
}
.gd-footer__contact-row {
  display: flex;
  gap: 40px;
}
.gd-footer__label {
  display: block;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 4px;
}
.gd-footer__value {
  display: block;
  font-size: 16px;
  color: #fff;
}

/* 关注我们样式 */
.gd-footer__follow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: rgba(10, 61, 98, 0.6);
  padding: 0px 30px;
  padding-right: 0;
  border-radius: 4px;
}
.gd-footer__qrcode {
  width: 120px;
  height: 120px;
}
.gd-footer__qrcode img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 导航链接样式 */
.gd-footer__links {
  background-color: rgba(10, 61, 98, 0.6);
  padding: 30px;
  border-radius: 4px;
  height: 100%;
}
.gd-footer__link-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 30px;
}
.gd-footer__link-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  font-size: 16px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.gd-footer__link-item:hover {
  background-color: rgba(0, 82, 204, 0.8);
}
.gd-footer__link-item i:first-child {
  margin-right: 12px;
}

/* 版权信息样式 */
.gd-footer__copyright {
  text-align: center;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
}

.gd-icon-paper-plane {
  display: flex;
  align-items: center;
  justify-content: center;
}
.gd-icon-paper-plane img {
  width: 34px;
  height: 34px;
}
.gd-icon-location {
  background: rgba(255, 255, 255, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  border-radius: 50%;
}
.gd-icon-location img {
  width: 18px;
  height: 18px;
}
.gd-icon-phone {
  background: rgba(255, 255, 255, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  border-radius: 50%;
}
.gd-icon-phone img {
  width: 18px;
  height: 18px;
}
.gd-icon-email {
  background: rgba(255, 255, 255, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  border-radius: 50%;
}
.gd-icon-email img {
  width: 18px;
  height: 18px;
}

.gd-icon-user-follow img {
  width: 34px;
  height: 34px;
}
.gd-icon-link img {
  width: 37px;
  height: 32px;
}
.gd-icon-document img {
  width: 17px;
  height: 23px;
}
.gd-icon-briefcase img {
  width: 21px;
  height: 21px;
}
.gd-icon-case img {
  width: 21px;
  height: 20px;
}
.gd-icon-chat img {
  width: 26px;
  height: 23px;
}
.gd-icon-arrow-right img {
  width: 26px;
  height: 23px;
}
.gd-footer__bottom {
  margin-bottom: 30px;
  margin-top: 40px;
}