/* 全局样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Noto Sans SC", sans-serif;
  line-height: 1.6;
  color: #333;
  background: #f8f9fa;
  overflow-x: hidden;
}

.container {
  width: 100%;
  max-width: 100%;
  padding-bottom: 64px;
  margin: 0 auto;
  padding: 0;
}
/* 头部区域 */
.hero-header {
  position: relative;
  width: 100%;
  height: 561px;
  overflow: hidden;
  max-height: 561px;
}

.hero-swiper-container {
  width: 100%;
  height: 100%;
}

.hero-swiper {
  width: 100%;
  height: 100%;
}

.hero-slide {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-bg-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}

.hero-content {
  text-align: center;
  z-index: 2;
  position: relative;
  max-width: 800px;
  padding: 0 20px;
  color: #fff;
}

.hero-title {
  font-size: 4rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 1rem;
  line-height: 1.2;
  transition: transform 0.3s ease;
  font-family: NotoSansHans;
  font-weight: bold;
  color: #ffffff;
}

.hero-subtitle {
  font-size: 2rem;
  color: rgba(255, 255, 255, 0.9);
  letter-spacing: 2px;
  margin-top: 1rem;
  transition: transform 0.3s ease;
  font-family: NotoSansHans;
  font-weight: normal;
  color: #ffffff;
}

/* 轮播图链接样式 */
.hero-slide-link {
  display: block;
  width: 100%;
  height: 100%;
  text-decoration: none;
  color: inherit;
  transition: all 0.3s ease;
}

/* 主内容区域 */
.articles-section {
  background: #fff;
  border-radius: 20px;
  position: relative;
  z-index: 3;
}

.section-title {
  text-align: center;
  margin-left: 20%;
  margin-right: 20%;
  margin-bottom: 50px;
  padding-top: 30px;
  position: relative;
  margin-top: 0px;
  padding-top: 0;
  font-weight: bold;
  font-size: 36px;
  color: #252525;
  height: 78px;
}
.section-title .article {
  position: absolute;
  bottom: 5px;
  left: 50%;
  transform: translateX(-50%);
  font-weight: 400;
  border-radius: 2px;
  font-family: NotoSansHans;
  font-weight: 300;
  font-size: 18px;
  color: #9d9d9d;
}

.section-title::after {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 35%;
  height: 35px;
  border-radius: 2px;
  background: url(../../images/specialtopic/titleleftbg1.png) no-repeat center
    center;
  background-size: 100% 100%;
}

.section-title::before {
  content: "";
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%) rotate(180deg);
  width: 35%;
  height: 35px;
  border-radius: 2px;
  background: url(../../images/specialtopic/titleleftbg1.png) no-repeat center
    center;
  background-size: 100% 100%;
}

/* 文章网格 */
.articles-grid {
  display: flex;
  gap: 10px;
  max-width: 100%;
  margin: 0 auto;
  gap: 27px;
  padding-bottom: 57px;

  @media screen and (max-width: 769px) {
    flex-wrap: wrap;
  }
}
.article-grid-left,
.article-grid-right {
  width: calc(50% - 13.5px);
}
.articles-title {
  font-family: NotoSansHans;
  font-weight: bold;
  font-size: 30px;
  color: #232323;
  width: 100%;
  position: relative;
}
.articles-title .article {
  font-size: 18px;
  color: #acacac;
  line-height: 34px;
  margin-left: 16px;
}
.articles-title .right-arrow {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  display: block;
  font-size: 28px;
  width: 9px !important;
  height: 14px;
  width: 100%;
  color: rgba(110, 110, 110, 1);
  background-image: url(../../images/knowledge/right_5.png);
  background-size: 100% 100%;
  background-repeat: no-repeat;
  background-position: center;
  cursor: pointer;
}
.article-grid-content {
  width: 100%;
  max-height: 560px;
  background: #ffffff;
  border: 1px solid #e5e5e5;
  overflow: hidden;
  margin-top: 32px;
  padding: 24px;
}
.article-grid-item {
  padding-bottom: 20px;
  padding-top: 25px;
  border-bottom: 2px dashed rgba(191, 191, 191, 1);
}
.article-title {
  font-family: NotoSansHans;
  font-weight: 400;
  font-size: 18px;
  color: #242424;
  line-height: 20px;
  /* 超出一行隐藏 */
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;

  position: relative;
  width: 100%;
  display: block;
  max-width: 100%;
  /* 确保文本溢出生效 */
  word-wrap: break-word;
  word-break: break-all;
}

.article-excerpt {
  font-family: NotoSansHans;
  font-weight: 400;
  font-size: 14px;
  color: #838383;
  line-height: 24px;
  min-height: 48px;
  /* 超出两行隐藏 */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 14px;
}

.article-grid-item:first-child {
  padding-top: 0;
}
.article-grid-item:last-child {
  border-bottom: 0;
}

.article-grid-item a {
  display: block;
  width: 100%;
  text-decoration: none;
  /* 确保链接内的文本溢出正常工作 */
  overflow: hidden;
}
/* 工程案例 */
.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 100%;
  margin: 0 auto;
  padding: 0 20px 0;
  margin-top: 70px;
}

/* 文章卡片 */
.article-card,
.article-card-first {
  background: #f0f8ff;
  padding: 15px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.06);
  transition: all 0.3s ease;
  position: relative;
  border: 1px solid #f0f0f0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  width: calc(33% - 1.125rem);
  padding-top: 30px;
}
.article-card {
  @media screen and (max-width: 769px) {
    width: calc(50% - 1.125rem);
  }
}

.article-card-list {
  width: 100%;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;

  @media screen and (max-width: 769px) {
    width: 100%;
  }
}

.article-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #667eea, #764ba2);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.article-badge {
  position: absolute;
  top: 0;
  right: 0;
  background: #7172f4;
  color: #fff;
  padding: 2px 10px;
  z-index: 1;
  font-family: NotoSansHans;
  font-weight: 400;
  font-size: 12px;
  color: #ffffff;
}

.article-content {
  position: relative;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.article-title {
  margin-top: 0px;
  font-weight: 600;
  color: #333;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex-shrink: 0;
  font-weight: bold;
  font-size: 18px;
  color: #2a2a2a;
  /* 移除 display: flex，因为它会破坏文本溢出效果 */
  /* display: flex; */
  /* align-items: center; */
  /* gap: 12px; */
  /* 添加文本溢出样式 */
  text-overflow: ellipsis;
  white-space: nowrap;
  width: 100%;
}
.article-title img {
  margin-top: 3px;
}

.article-excerpt {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
  font-family: NotoSansHans;
  font-weight: 400;
  font-size: 14px;
  color: #6b6b6b;
}

.learn-more-btn {
  background: #2869ee;
  color: #fff;
  border: none;
  padding: 0.6rem 1.2rem;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  align-self: flex-start;
  margin-top: 25px;
}

.learn-more-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 ease;
}
/* 动画 */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes glow {
  from {
    filter: drop-shadow(0 0 5px rgba(0, 212, 255, 0.5));
  }
  to {
    filter: drop-shadow(0 0 20px rgba(0, 255, 136, 0.8));
  }
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px) rotate(0deg);
  }
  50% {
    transform: translateY(-20px) rotate(180deg);
  }
}

/* 加载动画 */
.article-card {
  animation: fadeInUp 0.6s ease-out;
}

.article-card:nth-child(1) {
  animation-delay: 0.1s;
}
.article-card:nth-child(2) {
  animation-delay: 0.2s;
}
.article-card:nth-child(3) {
  animation-delay: 0.3s;
}
.article-card:nth-child(4) {
  animation-delay: 0.4s;
}
.article-card:nth-child(5) {
  animation-delay: 0.5s;
}
.article-card:nth-child(6) {
  animation-delay: 0.6s;
}
.article-card:nth-child(7) {
  animation-delay: 0.7s;
}
.article-card:nth-child(8) {
  animation-delay: 0.8s;
}

/* 文章卡片额外优化 */
.article-card {
  position: relative;
}

.article-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(
    135deg,
    rgba(102, 126, 234, 0.02) 0%,
    rgba(118, 75, 162, 0.02) 100%
  );
  opacity: 1;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.article-card:hover::after {
  opacity: 1;
}

/* 文章标题悬停效果 */
.article-card:hover .article-title {
  color: #667eea;
  transition: color 0.3s ease;
}

/* 经典标签动画 */
/* .article-badge {
  animation: pulse 2s infinite;
} */

@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
  }
}

/* 视频模块样式 */
.video-swiper-container {
  position: relative;
  max-width: 100%;
  height: auto;
  margin: 0 auto;
  padding: 69px 0 106px;
  overflow: hidden;
  background-image: url(../../images/specialtopic/videobg.png);
  background-size: 100% 100%;
  background-repeat: no-repeat;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}
.project-swiper-container {
  position: relative;
  max-width: 100%;
  height: 880px;
  margin: 0 auto;
  padding: 0 0 50px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  background-color: #f3f7ff;
}

.project-swiper-container .section-title::after {
  background: url(../../images/specialtopic/titleleftbg2.png) no-repeat center
    center;
  background-size: 100% 100%;
}

.project-swiper-container .section-title::before {
  background: url(../../images/specialtopic/titleleftbg2.png) no-repeat center
    center;
  background-size: 100% 100%;
}

.video-swiper-container .section-title {
  color: #fff !important;
  margin-left: 0;
  margin-right: 0;
  width: 60%;
  padding-top: 0;
  font-weight: bold;
  font-size: 36px;
  color: #252525;
  line-height: 26px;
  margin-bottom: 0;
}
.project-swiper-container .section-title {
  width: 60%;
  color: #252525;
  margin-bottom: 0;
}
.project-swiper-container .section-title .article {
  color: #252525;
}
.video-swiper-container .section-title .article {
  color: #fff !important;
}

.video-swiper-container .section-title::after {
  background: url(../../images/specialtopic/titleleftbg3.png) no-repeat center
    center;
  background-size: 100% 100%;
}
.video-swiper-container .section-title::before {
  background: url(../../images/specialtopic/titleleftbg3.png) no-repeat center
    center;
  background-size: 100% 100%;
}

.mt70 {
  margin-top: 70px;
}
.video-card {
  overflow: hidden;
  transition: all 0.3s ease;
  cursor: pointer;
}
.video-card:hover {
  background: #ffffff;
  box-shadow: 0px 3px 32px 0px rgba(0, 0, 0, 0.19);
}
.video-card:hover .video-title {
  padding-left: 10px;
  padding-right: 10px;
}

.video-thumbnail {
  position: relative;
  width: 100%;
  height: 200px;
  overflow: hidden;
}

.video-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
  position: relative;
}
.video-thumbnail::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  /* background-color: rgba(0, 0, 0, 0.3); */
  z-index: 1;
  transition: background-color 0.3s ease;
}

.video-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.play-button {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  opacity: 0;
  z-index: 2;
}

.play-icon {
  width: 0;
  height: 0;
  border-left: 20px solid #2869ee;
  border-top: 15px solid transparent;
  border-bottom: 15px solid transparent;
  margin-left: 3px;
  position: relative;
  transition: all 0.3s ease;
}

.play-button:hover .play-icon {
  border-left-color: #1e5fd8;
  transform: scale(1.1);
}

.video-title {
  padding: 15px 0;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-family: NotoSansHans;
  font-weight: 400;
  font-size: 20px;
  color: #242424;
  line-height: 28px;
  transition: all 0.3s ease;
}

.books-swiper {
  width: 100%;
  height: 100%;
  overflow: hidden;
  padding: 20px;
}

.book-card {
  overflow: hidden;
  transition: all 0.3s ease;
  cursor: pointer;
  text-align: center;
  padding: 15px;
  outline: none;
}

.books-swiper .book-card:hover {
  background: #f9fafb;
  box-shadow: 0px 8px 45px 0px rgba(0, 0, 0, 0.11);
}

.book-cover {
  width: 100%;
  overflow: hidden;
  margin-bottom: 16px;
}

.book-cover img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform 0.3s ease;
}

.expert-swiper-container .book-card {
  border-radius: 50%;
}
.expert-swiper-container .book-card {
  border-radius: 50%;
}
.expert-swiper-container .book-cover img {
  border-radius: 50%;
}

.book-title {
  font-size: 16px;
  font-weight: 600;
  color: #333;
  margin: 0 0 4px 0;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
  font-family: NotoSansHans;
  font-weight: 400;
  font-size: 16px;
  color: #323232;
  font-weight: 400;
  font-size: 16px;
  color: #242424;
  line-height: 20px;
}

.book-author {
  font-family: NotoSansHans;
  font-weight: 400;
  font-size: 14px;
  color: #959595;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
  font-family: HelveticaNeue;
  font-weight: 400;
  font-size: 16px;
  color: #ed0101;
}
.books-swiper-container {
  position: relative;
  margin-bottom: 68px;
}
/* Swiper导航按钮样式 */
.books-swiper-container .books-swiper-button-prev,
.books-swiper-container .books-swiper-button-next {
  width: 40px !important;
  height: 40px !important;
  background: #2869ee;
  border-radius: 50%;
  color: #fff;
  font-size: 18px;
  transition: all 0.3s ease;
  top: 40% !important;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

.books-swiper-container .books-swiper-button-prev {
  left: -30px;

  @media screen and (max-width: 769px) {
    left: 0px;
  }
}
.books-swiper-container .books-swiper-button-next {
  right: -30px;

  @media screen and (max-width: 769px) {
    right: 0px;
  }
}

.books-swiper-container .books-swiper-button-prev:hover,
.books-swiper-container .books-swiper-button-next:hover {
  transform: scale(1.1);
}

.books-swiper-container .books-swiper-button-prev::after,
.books-swiper-container .books-swiper-button-next::after {
  font-size: 16px !important;
  font-weight: bold;
  color: #fff !important;
}
.books-swiper-container .books-swiper-button-next::after {
  transform: translateX(2px);
}
.books-swiper-container .books-swiper-button-prev::after {
  transform: translateX(-2px);
}

/* 图片模块样式 */
.images-swiper-container {
  position: relative;
  max-width: 100%;
  height: 880px;
  margin: 0 auto;
  padding: 10% 0 50px;
  overflow: hidden;
  background-image: url(../../images/specialtopic/swiper2.png);
  background-size: 100% 100%;
  background-repeat: no-repeat;
  background-position: center;
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  flex-direction: column;
}

.images-swiper-container .section-title {
  color: #fff;
  margin-left: 20%;
  margin-right: 20%;
  padding-top: 0;
  font-weight: bold;
  width: 60%;
  font-size: 36px;
  color: #252525;
  margin-bottom: 20px;
}
.image-grid {
  width: 60%;
  height: 100%;
  position: relative;
}
.images-swiper {
  /* width: 50%;
  height: 100%; */
  max-width: 832px;
  max-height: 468px;
  overflow: hidden;
  position: absolute;
  top: 0;
  left: -8%;
}

.images-swiper-loop {
  position: absolute;
  bottom: 10%;
  right: -20%;
  background: #7172f4;
  height: 84px;
  width: 80%;
  overflow: hidden;
  z-index: 9;
  padding: 12px 10px;

  @media screen and (max-width: 769px) {
    flex-wrap: wrap;
  }
}
.images-swiper-loop .swiper-slide {
  opacity: 0.4;
  cursor: pointer;
  transition: opacity 0.3s ease;
}

.images-swiper-loop .swiper-slide:hover {
  opacity: 0.7;
}

.images-swiper-loop .swiper-slide-thumb-active {
  opacity: 1;
}

.images-swiper-loop .swiper-slide-thumb-active:hover {
  opacity: 1;
}

.images-swiper-desc {
  position: absolute;
  max-width: 480px;
  height: 218px;
  width: 45%;
  background: #ffffff;
  right: 0%;
  top: 20%;
  z-index: 9;
}
.images-swiper-desc-box {
  width: 100%;
  height: 100%;
  position: relative;
}
.images-swiper-desc-box::before {
  content: "";
  position: absolute;
  top: -10%;
  left: -10%;
  width: 100%;
  height: 100%;
  border: 8px solid #7172f4;
}

.images-swiper-desc-content {
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  font-family: NotoSansHans;
  font-weight: bold;
  font-size: 20px;
  color: #242424;
  line-height: 30px;
  padding: 14% 16% 6% 6%;
  cursor: pointer;
}

.images-swiper .swiper-slide {
  max-height: 468px;
}

.images-swiper-container .section-title::after {
  background: url(../../images/specialtopic/titleleftbg2.png) no-repeat center
    center;
  background-size: 100% 100%;
}
.images-swiper-container .section-title::before {
  background: url(../../images/specialtopic/titleleftbg2.png) no-repeat center
    center;
  background-size: 100% 100%;
}

.images-swiper-container .swiper {
  margin-top: 17px;
  max-height: 468px;
}

.image-card {
  max-height: 468px;
  height: 100%;
  overflow: hidden;
  transition: all 0.3s ease;
  cursor: pointer;
  text-align: center;
  position: relative;
  /* border: 0.1px solid transparent; */
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
}

.image-wrapper {
  width: 100%;
  height: 100%;
  max-height: 468px;
  overflow: hidden;
}

.image-wrapper img {
  width: 100%;
  height: 100%;
  max-height: 468px;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.image-title {
  font-size: 18px;
  font-weight: 600;
  color: #333;
  margin: 0 0 10px 0;
  line-height: 1.4;
  font-family: NotoSansHans;
  font-weight: 500;
}

.image-desc {
  font-size: 14px;
  color: #666;
  margin: 0;
  line-height: 1.5;
  font-family: NotoSansHans;
  font-weight: 400;
}

/* 图片Swiper导航按钮样式 */
.images-swiper-button-prev,
.images-swiper-button-next {
  width: 55px !important;
  height: 55px !important;
  background: #7172f4;
  color: #666;
  font-size: 18px;
  transition: all 0.3s ease;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}
.images-swiper-button-prev:hover,
.images-swiper-button-next:hover {
  background: #ff992c;
}

.images-swiper-button-prev::after,
.images-swiper-button-next::after {
  font-size: 16px !important;
  font-weight: bold;
  color: #666 !important;
}

.images-swiper-button-next::after {
  transform: translateX(2px);
}

.images-swiper-button-prev::after {
  transform: translateX(-2px);
}
.images-swiper-container .images-swiper-button-prev,
.images-swiper-container .images-swiper-button-next {
  top: 50% !important;
  transform: translateY(-50%);
  z-index: 9;
  left: inherit !important;
  left: -15% !important;
}
.images-swiper-container .images-swiper-button-next {
  left: inherit !important;
  right: 5% !important;
}

.images-swiper-container .images-swiper-button-prev::after,
.images-swiper-container .images-swiper-button-next::after {
  color: #fff !important;
}

/* 工具 */
.tool-grid-box {
  width: 100%;
  max-height: 832px;
  box-sizing: border-box;
  padding-top: 32px;
  padding-bottom: 62px;
}
.tool-grid-box .section-title {
  margin-top: 0;
  padding-top: 0;
}

/* 工具模块样式 - Flex 4/3/2/1 列 */
.tool-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px 0;
  margin-top: 90px;
}

.tool-card {
  transition: all 0.3s ease;
  text-align: center;
  position: relative;
  overflow: hidden;
  width: 25%;
  aspect-ratio: 1 / 1; /* 保持正方形 */
  display: flex;
  flex-direction: column;
  align-items: center;
  box-sizing: border-box;
  justify-content: space-between;
}

/* 纯图片卡片：正方形，图片自适应填充 */
.tool-card.image-only {
  padding: 0;
  border: 0;
  aspect-ratio: 1 / 1;
  box-shadow: 0px 15px 32px 0px rgba(73, 90, 108, 0.1);
}
.tool-card.image-only > a {
  display: block;
  width: 100%;
  height: 100%;
}
.tool-card.image-only img {
  width: 100%;
  height: 100%;
  object-fit: none;
  display: block;
}

.tool-info {
  text-align: left;
  padding: 10px;
}

.tool-title {
  font-size: 25px;
  font-weight: bold;
  color: #242424;
  margin-bottom: 10px;
  line-height: 1.3;
}

.tool-description {
  font-size: 14px;
  color: #6c757d;
  line-height: 1.5;
  margin-bottom: 18px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}

.download-btn {
  border: none;
  background-color: transparent;
  color: #3f53d8;
  border: none;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

.download-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 ease;
}

.project-card {
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project-card .project-link {
  display: block;
  color: inherit;
  text-decoration: none;
}

.project-image-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.project-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 6px;
}

.project-title {
  font-size: 18px;
  color: #222;
  font-weight: 600;
  padding: 12px 6px 4px;
  margin: 0;
  font-weight: 500;
  font-size: 20px;
  color: #232323;
  line-height: 17px;
}

/* 专家学者 */
.expert-swiper-container .swiper {
  overflow: hidden;
  width: 100%;
  position: relative;
}

.expert-swiper-container-header{
  position: absolute;
  top: 0;
  right: 0;
  width: 400px;
  height: 400px;
  z-index: 10;
}

.expert-swiper-container {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 40px;
  position: relative;
  height: 440px;
}
.expert-swiper-container::before {
  content: "";
  position: absolute;
  top: 0;
  right: -15%;
  width: 400px;
  height: 400px;
  background: #f8f8f8;
  border-radius: 50%;
}

.expert-swiper-container::after {
  content: "";
  position: absolute;
  top: 0;
  right: -8%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  border: 16px solid #7172f4;
}

.expert-swiper-container-box {
  width: 45%;
  padding: 20px;
  position: absolute;
  left: 0;
}

.expert-title h3 {
  font-size: 28px;
  font-weight: bold;
  color: #252525;
  margin-bottom: 20px;
}

.expert-content p {
  font-size: 16px;
  color: #666;
  margin-bottom: 8px;
  line-height: 1.5;
  font-family: NotoSansHans;
  font-weight: 400;
  font-size: 18px;
  color: #5b5b5b;
  margin-bottom: 10px;
}

.expert-content-box {
  width: 80%;
  font-family: NotoSansHans;
  font-weight: 400;
  font-size: 18px;
  color: #666666;
  line-height: 30px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 专家卡片样式 */
.expert-swiper-container .book-card {
  padding: 0;
  position: relative;
  cursor: pointer;
  transition: all 0.3s ease;
  border-radius: 8px;
  overflow: hidden;
}

.expert-swiper-container .book-cover {
  height: 400px !important;
  min-height: 200px;
  margin-bottom: 0;
  overflow: hidden;
}

.expert-swiper-container .book-cover img {
  transition: transform 0.3s ease;
  width: 400px;
  height: 100%;
  object-fit: cover;
}

/* 专家模块响应式设计 */
@media (max-width: 1200px) {
  .expert-swiper-container {
    flex-direction: column;
    gap: 20px;
  }

  .expert-swiper-container-box {
    width: 100%;
    order: 2;
  }

  .expert-swiper-container .swiper {
    width: 100%;
    order: 1;
  }
}

@media (max-width: 768px) {
  .expert-title h3 {
    font-size: 24px;
  }

  .expert-content p {
    font-size: 14px;
  }

  .expert-content-box {
    font-size: 13px;
    padding: 12px;
  }
}

/* 专家头像轮播图样式 */
.expert-avatar-swiper-container {
  position: absolute;
  bottom: 0%;
  left: 2%;
  width: 60%;
  z-index: 10;
}


.expert-avatar-swiper {
  width: 100%;
  height: 120px;
}

.expert-avatar-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 15px 20px;
  cursor: pointer;
  transition: all 0.3s ease;
  background: #f0f0f0;
  backdrop-filter: blur(10px);
  border: 2px solid transparent;
  min-height: 80px;
  min-width: 120px;
  height: 100%;
}

/* .expert-avatar-swiper-container .swiper-slide-active{
  background: linear-gradient(135deg, #7172f4, #5555e9);
  border-color: #7172f4;
} */
.expert-avatar-swiper-container .swiper-slide-thumb-active .expert-avatar-card {
  background: linear-gradient(135deg, #7172f4, #5555e9);
  border-color: #7172f4;
}

.expert-avatar-swiper-container
  .swiper-slide-thumb-active
  .expert-avatar-info
  h4,
.expert-avatar-swiper-container
  .swiper-slide-thumb-active
  .expert-avatar-info
  p {
  color: #fff;
}

.expert-avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  overflow: hidden;
  margin-bottom: 8px;
  border: 3px solid #fff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.expert-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.expert-avatar-card:hover .expert-avatar img {
  transform: scale(1.1);
}

.expert-avatar-info {
  text-align: center;
}

.expert-avatar-info h4 {
  font-size: 18px;
  font-weight: bold;
  color: #333;
  margin: 0 0 8px 0;
  line-height: 1.2;
  transition: color 0.3s ease;
}

.expert-avatar-info p {
  font-size: 14px;
  color: #666;
  margin: 0;
  line-height: 1.2;
  transition: color 0.3s ease;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
  text-align: center;
}

/* 专家头像轮播图响应式设计 */
@media (max-width: 1200px) {
  .expert-avatar-swiper-container {
    width: 90%;
  }

  .expert-avatar-swiper {
    height: 100px;
  }

  .expert-avatar {
    width: 50px;
    height: 50px;
  }

  .expert-avatar-info h4 {
    font-size: 12px;
  }

  .expert-avatar-info p {
    font-size: 10px;
  }
}

@media (max-width: 768px) {
  .expert-avatar-swiper-container {
    width: 95%;
  }

  .expert-avatar-swiper {
    height: 80px;
  }

  .expert-avatar {
    width: 40px;
    height: 40px;
  }

  .expert-avatar-info h4 {
    font-size: 11px;
  }

  .expert-avatar-info p {
    font-size: 9px;
  }
}

/* 问答模块 */
.qustion-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 17px;
  padding: 10px 0 60px;
}

/* 法律法规/课件/标准 模块 */
.cardbox {
  position: relative;
  margin: 50px 0 10px;
}
.cardbox > img {
  width: 100%;
  display: block;
  border-radius: 14px;
}
.cardbox-law {
  position: relative;
  display: flex;
  gap: 4px;
  justify-content: space-between;

  @media screen and (max-width: 1080px) {
    flex-wrap: wrap;
  }
}
.law-card {
  padding: 30px 0 30px;
  width: calc(33.33% - 8px);

  @media screen and (max-width: 1080px) {
    width: calc(100% - 16px);
  }
}

.law-card .law-card__title-span {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  font-family: CharlemagneStd;
  font-weight: bold;
  font-size: 16px;
  color: #acacac;
}

.law-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 26px;
}
.law-card__title {
  color: #1f2a44;
  margin: 0;
  font-family: NotoSansHans;
  font-weight: bold;
  font-size: 26px;
  color: #232323;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.law-card__more {
  font-size: 13px;
  color: #6b7bd0;
  text-decoration: none;
  padding-right: 15px;
  font-family: Microsoft YaHei UI;
  font-weight: 400;
  font-size: 14px;
  color: #666666;
  line-height: 30px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.law-card__list {
  list-style: none;
  margin: 0;
}
.law-card__list li {
  width: 100%;
  line-height: 34px;
  margin: 10px 0;
}
.law-card__list li:last-child {
  border-bottom: none;
}
.law-card__list a {
  width: 100%;
  color: #2a2a2a;
  text-decoration: none;
  /* 超出变点样式 */
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  display: block;
  font-weight: 400;
  font-size: 16px;
  color: #333333;
}
.law-card__list-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 12px;
  background: #ffffff;
  border: 1px solid #e5e5e5;
  width: 100%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.law-card__list-item-icon {
  width: 105px;
  height: 105px;
  background: #f7f8fc;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.law-card__list-item-icon img {
  width: 60%;
  height: 60%;
}
.law-card__list-item-content {
  height: 105px;
  width: calc(100% - 113px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.law-card__list-item-content span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  width: 100%;
}
.law-card__list-item-content-look {
  display: flex;
  align-items: center;
  gap: 10px;
}
.law-card__list-item-content-look img {
  width: 22px;
  height: 18px;
}

.law-card:not(:first-child) .law-card__list-item-icon img {
  width: 100%;
  height: 100%;
}

.qa-card {
  background: #fff;
  border: 1px solid #e8eef7;
  border-radius: 8px;
  box-shadow: 0 4px 18px rgba(31, 61, 117, 0.06);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  padding: 20px 10px;
  position: relative;
  width: calc(33% - 17px);

  @media screen and (max-width: 1080px) {
    width: calc(50% - 16px);
  }
}

.qa-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(31, 61, 117, 0.12);
}

.qa-link {
  display: block;
  padding: 20px 22px 18px;
  color: inherit;
  text-decoration: none;
}

.qa-header {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 10px;
}

.qa-icon {
  width: 28px;
  height: 28px;
  background: #2869ee;
  color: #fff;
  font-weight: 700;
  font-size: 16px;
  text-align: center;
  flex-shrink: 0;
}

.qa-title {
  font-size: 18px;
  font-weight: 700;
  color: #222;
  margin: 0;
  line-height: 1.3;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.qa-excerpt {
  margin: 8px 0 0;
  color: #6b7485;
  font-size: 14px;
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
}

.qa-arrow {
  position: absolute;
  right: 18px;
  bottom: 16px;
  width: 22px;
  height: 16px;
  background-image: url("../../images/specialtopic/more.png");
  background-repeat: no-repeat;
}

.expert-swiper-container .swiper-button-next,
.expert-swiper-container .swiper-button-prev {
  transform: translateY(-50%);
  width: 80px;
  height: 80px;
  background: linear-gradient(206deg, #9092ff 0%, #5555e9 100%);
  box-sizing: border-box;
  border-radius: 50%;
  top: 54%;
}
.expert-swiper-container .swiper-button-next::after,
.expert-swiper-container .swiper-button-prev::after {
  font-size: 24px;
  color: #fff;
}

.expert-swiper-container .swiper-button-prev {
  right: 40%;
  left: inherit;
  display: none;

  @media screen and (max-width: 769px) {
    left: 0px;
  }
}
.expert-swiper-container .swiper-button-next {
  right: -11%;

  @media screen and (max-width: 769px) {
    right: 0px;
  }
}

.achorbox {
  height: 125px;
  background-image: url("../../images/specialtopic/expert-bg.png");
  background-repeat: no-repeat;
  background-size: 100% 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transform: translateY(-30px);
  padding: 0 20px;
}

.achorbox .book-title {
  font-weight: bold;
  font-size: 20px;
  color: #252525;
}

/* 试题库模块样式 */
.question-bank-grid {
  display: flex;
  gap: 0;
  padding: 10px 0 60px;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}

.question-bank-card {
  background: #fff;
  transition: all 0.3s ease;
  overflow: hidden;
  position: relative;
  padding: 20px;
  width: calc(25% - 14px);
  background-color: #f7f8fc;
  padding: 60px 20px 44px;

  @media screen and (max-width: 1440px) {
    width: calc(50% - 16px);
  }

  @media screen and (max-width: 769px) {
    width: 100%;
    border: none;
  }
}

.question-bank-card img {
  max-width: 91px;
  max-height: 113px;
}

.question-bank-link {
  text-decoration: none;
  color: inherit;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  flex-direction: column;
}

/* 第一个图标：圆形漩涡 + 箭头 */
.icon-circle {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: linear-gradient(135deg, #2869ee, #3f53d8);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 第二个图标：堆叠块 + 笔 */

/* 第三个图标：齿轮 */
.question-bank-content {
  flex: 1;
}

.question-bank-title {
  font-size: 18px;
  font-weight: 700;
  color: #1f2a44;
  margin-bottom: 12px;
  line-height: 1.4;
  font-family: NotoSansHans;
  font-weight: bold;
  font-size: 18px;
  color: #171717;
  text-align: center;
}

.question-bank-description {
  line-height: 1.6;
  margin: 0;
  font-weight: 400;
  font-size: 14px;
  color: #66717d;
  text-align: center;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.wrap {
  margin-left: 20%;
  margin-right: 20%;
}

/* 试题库响应式设计 */
@media (max-width: 1200px) {
  .question-bank-link {
    padding: 24px;
  }
}

@media (max-width: 992px) {
}

@media (max-width: 768px) {
  .question-bank-link {
    padding: 20px;
  }

  .question-bank-title {
    font-size: 16px;
  }

  .question-bank-description {
    font-size: 13px;
  }
}

@media (max-width: 992px) {
  .project-grid {
  }
  .project-title {
    font-size: 16px;
  }
}

@media (max-width: 1279px) and (min-width: 768px) {
  .image-title {
    font-size: 16px;
  }

  .image-desc {
    font-size: 13px;
  }
}

@media (max-width: 767px) {
  .images-swiper-container {
    padding: 0 40px 30px;
  }

  .image-title {
    font-size: 15px;
    margin-bottom: 8px;
  }

  .image-desc {
    font-size: 12px;
  }

  .images-swiper-button-prev,
  .images-swiper-button-next {
    width: 35px;
    height: 35px;
  }

  .images-swiper-button-prev::after,
  .images-swiper-button-next::after {
    font-size: 14px;
  }
}

@media (max-width: 480px) {
  .images-swiper-container {
    padding: 0 30px 20px;
  }

  .image-title {
    font-size: 17px;
  }

  .image-desc {
    font-size: 14px;
  }
}

@media (max-width: 992px) {
  .cardbox-law {
    margin-top: -120px;
    grid-template-columns: 1fr;
  }
}
/* 无障碍优化 */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* 视频模块响应式设计 */
@media (max-width: 1200px) {
  .project-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
  }

  .video-thumbnail {
    height: 180px;
  }

  .video-title {
    font-size: 13px;
    padding: 12px;
  }
}

@media (max-width: 992px) {
  .project-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
  }

  .video-thumbnail {
    height: 160px;
  }

  .play-button {
    width: 50px;
    height: 50px;
  }

  .play-icon {
    border-left: 12px solid #2869ee;
    border-top: 8px solid transparent;
    border-bottom: 8px solid transparent;
  }
}

@media (max-width: 768px) {
  .project-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    padding: 0 15px 30px;
  }

  .video-thumbnail {
    height: 140px;
  }

  .video-title {
    font-size: 12px;
    padding: 10px;
    -webkit-line-clamp: 2;
  }

  .play-button {
    width: 40px;
    height: 40px;
  }

  .play-icon {
    border-left: 10px solid #2869ee;
    border-top: 6px solid transparent;
    border-bottom: 6px solid transparent;
  }

  .play-icon::before {
    left: -7px;
    top: -4px;
    border-left: 7px solid #fff;
    border-top: 4px solid transparent;
    border-bottom: 4px solid transparent;
  }
}

@media (max-width: 480px) {
  .project-grid {
    grid-template-columns: 1fr;
    gap: 15px;
    padding: 0 10px 20px;
  }

  .video-thumbnail {
    height: 180px;
  }

  .video-title {
    font-size: 14px;
    padding: 12px;
  }

  .play-button {
    width: 50px;
    height: 50px;
  }

  .play-icon {
    border-left: 12px solid #2869ee;
    border-top: 8px solid transparent;
    border-bottom: 8px solid transparent;
  }
}

/* 新的视频布局样式 */
.video-layout {
  display: flex;
  gap: 30px;
  height: 540px;
  margin-top: 54px;
}

/* 左侧视频侧边栏 */
.video-sidebar {
  width: 25%;
  display: flex;
  flex-direction: column;
  position: relative;
  height: 90%;
}

.nav-arrow-up,
.nav-arrow-down {
  width: 20px;
  height: 20px;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="white"><path d="M7.41 15.41L12 10.83l4.59 4.58L18 14l-6-6-6 6z"/></svg>')
    no-repeat center;
  background-size: contain;
  cursor: pointer;
  transition: opacity 0.3s;
}

.nav-arrow-down {
  transform: rotate(180deg);
}

.nav-arrow-up:hover,
.nav-arrow-down:hover {
  opacity: 0.7;
}

/* 顶部横幅 */
.video-sidebar-banner {
  background: linear-gradient(135deg, #d4a574, #c19a6b);
  padding: 20px 15px;
  text-align: center;
  position: relative;
  border-bottom: 3px solid #e74c3c;
}

.video-sidebar-banner::after {
  content: "";
  position: absolute;
  bottom: -3px;
  left: 0;
  right: 0;
  height: 3px;
  background: #e74c3c;
  border-radius: 0 0 12px 12px;
}

.banner-content h3 {
  color: #fff;
  font-size: 18px;
  font-weight: bold;
  margin-bottom: 5px;
}

.banner-content p {
  color: #fff;
  font-size: 14px;
  margin: 2px 0;
  opacity: 0.9;
}

/* 视频列表轮播 */
.video-sidebar-swiper {
  max-height: 475px;
  height: 100%;
  overflow: hidden;
  position: relative;
}

.video-sidebar-swiper-container {
  height: 100%;
}

.video-sidebar-swiper-container .swiper-wrapper {
  flex-direction: column;
}

/* 视频侧边栏导航按钮 */
.video-sidebar-button-prev,
.video-sidebar-button-next {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 36px;
  height: 26px;
  border-radius: 15px;
  cursor: pointer;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  color: #fff;
  font-size: 22px;
  font-weight: bold;
}

.video-sidebar-button-prev {
  top: -6%;
}

.video-sidebar-button-next {
  bottom: -4%;
}

.video-sidebar-swiper-container {
  height: 100%;
}

.video-sidebar-swiper-container .swiper-wrapper {
  flex-direction: column;
}

.video-sidebar-item {
  cursor: pointer;
  transition: background-color 0.3s;
  height: 100%;
}

.video-sidebar-item:hover {
  background: rgba(255, 255, 255, 0.1);
}

.video-sidebar-item.active {
  background: rgba(255, 255, 255, 0.2);
}

/* 小视频缩略图 */
.video-thumbnail-small {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 8px;
  overflow: hidden;
}

.video-thumbnail-small img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
/* swiper-slide-active */
.video-sidebar-swiper-container
  .video-sidebar-item.active
  .video-thumbnail-small::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.4);
  z-index: 1;
  border-radius: 8px;
}

.play-button-small {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s;
  z-index: 2;
}

.play-button-small:hover {
  background: #fff;
  transform: translate(-50%, -50%) scale(1.1);
}

.play-icon-small {
  width: 0;
  height: 0;
  border-left: 12px solid #4a6bdf;
  border-top: 8px solid transparent;
  border-bottom: 8px solid transparent;
  margin-left: 2px;
}

/* 右侧主视频区域 */
.video-main {
  flex: 1;
  display: flex;
  align-items: flex-start;
  justify-content: center;
}

.video-player {
  width: 100%;
  max-width: 800px;
}

.video-thumbnail-main {
  position: relative;
  width: 100%;
  height: 475px;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.video-thumbnail-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.play-button-main {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  background: rgba(255, 255, 255, 0.95);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  z-index: 2;
}

.play-button-main:hover {
  background: #fff;
  transform: translate(-50%, -50%) scale(1.1);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.4);
}

.play-icon-main {
  width: 0;
  height: 0;
  border-left: 20px solid #4a6bdf;
  border-top: 12px solid transparent;
  border-bottom: 12px solid transparent;
  margin-left: 4px;
}

.video-title-main {
  margin-top: 16px;
  text-align: left;
}

.video-title-main h3 {
  font-weight: bold;
  margin: 0;
  font-family: NotoSansHans;
  font-weight: bold;
  font-size: 24px;
  color: #ffffff;
  line-height: 19px;
}

/* 响应式设计 */
@media (max-width: 1200px) {
  .video-layout {
    flex-direction: column;
    height: auto;
    gap: 20px;
  }

  .video-sidebar {
    width: 100%;
    height: 300px;
  }

  .video-sidebar-swiper-container .swiper-wrapper {
    flex-direction: row;
  }

  .video-sidebar-item {
    width: 100%;
    flex-shrink: 0;
  }

  .video-thumbnail-main {
    height: 300px;
  }
}

@media (max-width: 768px) {
  .video-layout {
    margin-top: 20px;
  }

  .video-sidebar {
    height: 250px;
  }

  .video-sidebar-item {
    width: 160px;
  }

  .video-thumbnail-main {
    height: 250px;
  }

  .video-title-main h3 {
    font-size: 16px;
  }

  .banner-content h3 {
    font-size: 16px;
  }

  .banner-content p {
    font-size: 12px;
  }
}

@media (max-width: 480px) {
  .video-sidebar {
    height: 200px;
  }

  .video-sidebar-item {
    width: 140px;
  }

  .video-thumbnail-main {
    height: 200px;
  }

  .play-button-main {
    width: 60px;
    height: 60px;
  }

  .play-icon-main {
    border-left: 16px solid #4a6bdf;
    border-top: 10px solid transparent;
    border-bottom: 10px solid transparent;
  }
}

/* 响应式设计 */
@media (min-width: 1920px) {
  .books-swiper .swiper-slide {
    width: calc(20% - 16px);
  }
}

@media (max-width: 1919px) and (min-width: 1440px) {
  .books-swiper .swiper-slide {
    width: calc(25% - 15px);
  }
}

@media (max-width: 1439px) and (min-width: 1280px) {
  .books-swiper .swiper-slide {
    width: calc(33.333% - 13.33px);
  }

  .wrap {
    margin-left: 15%;
    margin-right: 15%;
  }

  .section-title {
    margin-left: 15%;
    margin-right: 15%;
  }
  .images-swiper-container .section-title {
    margin-left: 15% !important;
    margin-right: 15% !important;
    width: 70% !important;
  }
}

@media (max-width: 1279px) and (min-width: 768px) {
  .tool-grid-box {
    max-height: inherit !important;
  }

  .books-swiper-container {
    padding: 0 50px 40px;
  }

  .book-title {
    font-size: 15px;
  }

  .book-author {
    font-size: 13px;
  }

  .wrap {
    margin-left: 10%;
    margin-right: 10%;
  }

  .section-title {
    margin-left: 10%;
    margin-right: 10%;
  }
  .images-swiper-container .section-title {
    margin-left: 10% !important;
    margin-right: 10% !important;
    width: 80% !important;
  }
}

@media (max-width: 767px) {
  .books-swiper .swiper-slide {
    width: calc(50% - 10px);
  }
  .tool-grid-box {
    max-height: inherit !important;
  }

  .books-swiper-container {
    padding: 0 40px 30px;
  }

  .book-title {
    font-size: 14px;
    margin-bottom: 6px;
  }

  .book-author {
    font-size: 12px;
  }

  .books-swiper-button-prev,
  .books-swiper-button-next {
    width: 35px;
    height: 35px;
  }

  .books-swiper-button-prev::after,
  .books-swiper-button-next::after {
    font-size: 14px;
  }

  .wrap {
    margin-left: 5%;
    margin-right: 5%;
  }

  .section-title {
    margin-left: 5%;
    margin-right: 5%;
  }

  .images-swiper-container .section-title {
    margin-left: 5% !important;
    margin-right: 5% !important;
    width: 90% !important;
  }
}

@media (max-width: 480px) {
  .books-swiper .swiper-slide {
    width: calc(100% - 10px);
  }
  .tool-grid-box {
    max-height: inherit !important;
  }
  .books-swiper-container {
    padding: 0 30px 20px;
  }

  .book-title {
    font-size: 16px;
  }

  .book-author {
    font-size: 14px;
  }

  .wrap {
    margin-left: 2%;
    margin-right: 2%;
  }

  .section-title {
    margin-left: 2%;
    margin-right: 2%;
  }
  .images-swiper-container .section-title {
    margin-left: 2% !important;
    margin-right: 2% !important;
    width: 96% !important;
  }
}

@media (max-width: 1280px) {
  .tool-grid {
    gap: 18px;
  }
  .tool-card {
    flex: 0 0 calc((100% - 18px * 2) / 3); /* 3列 */
  }
}

@media (max-width: 992px) {
  .tool-grid {
    gap: 20px;
  }
  .tool-card {
    flex: 0 0 calc((100% - 20px) / 2); /* 2列 */
  }
}

@media (max-width: 768px) {
  .tool-grid {
    gap: 15px;
    margin-top: 50px;
  }
  .tool-card {
    flex: 0 0 calc((100% - 15px) / 2); /* 2列紧凑 */
  }
}

@media (max-width: 480px) {
  .tool-grid {
    gap: 15px;
  }
}

/* 轮播图分页器样式 */
.hero-pagination {
  bottom: 30px !important;
}

.hero-pagination .swiper-pagination-bullet {
  width: 30px;
  height: 4px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.3);
  margin: 0 5px;
  transition: all 0.3s ease;
}

.hero-pagination .swiper-pagination-bullet-active {
  background: #fff;
  width: 40px;
}

/* 轮播图导航按钮样式 */
.hero-button-next,
.hero-button-prev {
  color: #fff;
  background: rgba(255, 255, 255, 0.1);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
  opacity: 0.8;
}

.hero-button-next:hover,
.hero-button-prev:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: scale(1.1);
  opacity: 1;
}

.hero-button-next::after,
.hero-button-prev::after {
  font-size: 20px;
  font-weight: bold;
}

/* 轮播图淡入淡出效果 */
.hero-swiper .swiper-slide {
  opacity: 0;
  transition: opacity 0.3s ease;
}

.hero-swiper .swiper-slide-active {
  opacity: 1;
}

/* 轮播图响应式设计 */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

  .hero-button-next,
  .hero-button-prev {
    width: 40px;
    height: 40px;
  }

  .hero-button-next::after,
  .hero-button-prev::after {
    font-size: 16px;
  }

  .hero-pagination .swiper-pagination-bullet {
    width: 25px;
    height: 3px;
  }

  .hero-pagination .swiper-pagination-bullet-active {
    width: 35px;
  }
}

@media (max-width: 480px) {
  .hero-header {
    height: 350px;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    font-size: 0.9rem;
  }

  .hero-content {
    padding: 0 15px;
  }

  .hero-button-next,
  .hero-button-prev {
    display: none;
  }
}