.section-title {
  text-align: center;
  font-size: 36px;
  font-weight: 700;
  color: #282828;
  margin-bottom: 30px;
}

.section-subtitle {
  text-align: center;
  font-size: 24px;
  font-weight: 400;
  color: var(--text-medium);
  margin-bottom: 65px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  word-wrap: break-word;
  line-height: 1.3;
}

/* AI数字人直播革命已来临 */
.ai-revolution-section {
  padding: 80px 0;
  background-color: #ffffff;
}

.ai-revolution-section .icon-container {
  width: auto;
  height: 180px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ai-revolution-section .title {
  font-size: 33px;
  font-weight: bold;
  color: #333333;
  margin-bottom: 45px;
}

.ai-revolution-section p {
  font-size: 26px;
  font-weight: 400;
  line-height: 44px;
  color: #909298;
}

.ai-revolution-section .icon {
  max-height: 100%;
  object-fit: contain;
}

/* 智星AI系统模块 */
.ai-system-section {
  padding: 80px 0;
  background-color: #F5F6F7;
  position: relative;
  overflow: hidden;
}

.ai-system-section .ai-system-wrapper {
  position: relative;
  margin-top: 80px;
}

.ai-system-section .ai-system-cards {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: nowrap;
  gap: 10px;
  padding-top: 40px;
  margin-bottom: 100px;
}

.ai-system-section .ai-card {
  background: url("../images/zxszr/system/card_bg.png") no-repeat center/cover;
  border-radius: 16px;
  width: 19%;
  min-width: 220px;
  text-align: center;
  padding: 40px 15px;
}

.ai-system-section .ai-card img {
  width: 80px;
  height: 80px;
  margin-bottom: 20px;
  object-fit: contain;
}

.ai-system-section .ai-card h5 {
  font-size: 22px;
  font-weight: 400;
  margin-bottom: 16px;
  color: #333333;
}

.ai-system-section .ai-card p {
  font-size: 16px;
  font-weight: 400;
  color: #909298;
}

.ai-system-section .ai-system-cards .ai-card:nth-child(odd) {
  margin-top: 50px;
}

.ai-system-section .ai-system-cards .ai-card:nth-child(even) {
  margin-top: -50px;
}

.ai-system-section .ai-system-wave {
  position: absolute;
  bottom: -100px;
  left: 0;
  width: 100%;
  height: 160px;
  z-index: 1;
}

@media (max-width: 992px) {
  .ai-system-section .ai-system-curve {
    display: none;
  }

  .ai-system-section .ai-system-cards {
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
  }

  .ai-system-section .ai-card {
    width: 40%;
    margin-top: 0 !important;
  }
}

@media (max-width: 576px) {
  .ai-system-section .ai-card {
    width: 80%;
  }
}

.slogan-section {
  position: relative;
  height: 310px;
  overflow: hidden;
  margin-top: 0;
}

.slogan-section .slogan-container {
  position: relative;
  width: 100%;
  height: 100%;
  background-image: url('../images/zxszr/slogan_bg.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.slogan-section .slogan-content {
  padding: 20px;
  z-index: 1;
  position: relative;
}

.slogan-section .slogan-title {
  font-size: 40px;
  font-weight: bold;
  color: #282828;
  margin-bottom: 50px;
}

.slogan-section .slogan-subtitle {
  font-size: 20px;
  font-weight: 500;
  color: #333333;
  line-height: 42px;
}

 /* 核心功能模块 */
.core-section {
  padding: 100px 0;
  background: #fff;
}

.core-section .core-container {
  position: relative;
  width: 1100px;
  height: 700px;
  margin: 80px auto 0;
}

.core-section .center-image {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 664px;
  height: 664px;
  transform: translate(-50%, -50%);
}

.core-section .center-image img {
  width: 100%;
  height: 100%;
}

.core-section .center-content {
    position: relative;
    display: inline-block;
}

.core-section .center-title {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 36px;
    font-weight: bold;
    color: #FFFFFF;
    text-align: center;
}

.core-section .card-item {
  position: absolute;
  width: 400px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.core-section .card-content {
  flex: 1;
}

.core-section .card-content h4 {
  font-size: 24px;
  font-weight: bold;
  color: #207AFF;
  margin-bottom: 10px;
}

.core-section .card-content p {
  font-size: 20px;
  font-weight: 400;
  color: #666666;
}

.core-section .circle-num {
  width: 90px;
  height: 90px;
  background: linear-gradient(135deg, #007bff, #1e90ff);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 46px;
}

.core-section .left-item {
  left: -5%;
  justify-content: flex-end;
  text-align: right;
  flex-direction: row-reverse;
}

.core-section .left-item.item1 {
  top: 5%;
}

.core-section .left-item.item2 {
  top: 45%;
  left: -13%;
  transform: translateY(-25%);
}

.core-section .left-item.item3 {
  bottom: 8%;
}

.core-section .right-item {
  right: -5%;
  justify-content: flex-start;
  text-align: left;
  flex-direction: row;
}

.core-section .right-item.item4 {
  top: 5%;
}

.core-section .right-item.item5 {
  top: 45%;
  right: -13%;
  transform: translateY(-25%);
}

.core-section .right-item.item6 {
  bottom: 8%;
}

/* 系统架构模块 */
.architecture-section {
  padding: 100px 0;
  background: linear-gradient(0deg, #e4eeff 0%, #f9fbff 100%)
}

.architecture-section .row {
  padding: 20px 0;
  background-color: #FFFFFF;
}

.architecture-section .arch-card {
  background: #fff;
  padding: 20px;
  height: 100%;
}

.architecture-section .arch-icon {
  height: 100px;
  object-fit: contain;
  margin-bottom: 20px;
}

.architecture-section  .arch-card h5 {
  font-size: 24px;
  font-weight: bold;
  color: #333333;
  margin-bottom: 20px;
}

.architecture-section .arch-card p {
  font-size: 16px;
  color: #666666;
  line-height: 1.7;
}

/* 全方位赋能 */
.empower-section {
  padding: 100px 0;
  background: #FFFFFF;
}

.empower-section .empower-card {
  background: #F9FCFE;
  border-radius: 10px;
  position: relative;
}

.empower-section .icon-box img {
  height: 100px;
  margin: 0 auto;
}

.empower-section .divider-line {
  width: 80%;
  display: block;
  margin: 22px auto;
  opacity: 0.7;
}

.empower-section .title {
  font-size: 22px;
  font-weight: bold;
  color: #282828;
}

.empower-section .subtitle {
  margin: 14px 0 17px;
  font-size: 17px;
  color: #343434;
}

.empower-section .empower-list {
  display: inline-block;
  text-align: left;
  list-style: none;
  padding: 0;
  margin: 0 auto;
}

.empower-section .empower-list li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 15px;
  font-weight: 400;
  color: #4F4F4F;
  letter-spacing: 3px;
  margin-bottom: 15px;
}

.empower-section .empower-list img {
  height: 12px;
  width: auto;
}

/* 场景模块 */
.tab-section {
  padding: 100px 0;
  background-color: #f8fcff;
}

.tab-section .tab-nav .tab-item {
  font-size: 22px;
  border-radius: 5px;
  transition: all 0.3s ease;
  cursor: pointer;
  color: #333333;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 276px;
  height: 62px;
  text-align: center;
}

.tab-section .tab-nav .tab-item .tab-icon {
  width: auto;
  height: 26px;
  object-fit: contain;
}

.tab-section .tab-nav .tab-item.active {
  background-color: #2F63FF;
  color: white;
  border-color: #2F63FF;
}

.tab-section .tab-nav .tab-item:hover {
  transform: translateY(-2px);
}

.tab-section .row {
  display: flex;
  align-items: center;
  padding: 40px 10px;
}

.tab-section .row .image-container {
  max-width: 91%;
}

.scene-section .row .tab-content .category-title {
  margin-bottom: 15px;
  font-size: 36px;
  font-weight: bold;
  color: #333333;
}

.scene-section .row .tab-content .category {
  font-size: 22px;
  font-weight: 400;
  color: #666666;
}

.scene-section .row .tab-content .divider {
  border: none;
  border-top: 3px solid #e7e7e7;
  opacity: 1;
}

.scene-section .row .tab-content .scene-title {
  font-size: 22px;
  font-weight: 700;
  color: #333333;
  margin-bottom: 8px;
}

.scene-section .row .tab-content .scene-list {
  list-style: none;
  padding-left: 0;
}

.scene-section .row .tab-content .scene-list li {
  position: relative;
  padding-left: 12px;
  line-height: 2.4;
  font-size: 22px;
  font-weight: 400;
  color: #666666;
}

.scene-section .row .tab-content .scene-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 13px;
  width: 4px;
  height: 28px;
  background-color: #2f63ff;
}

.scene-section .row .tab-content .income-mode {
  font-size: 22px;
  font-weight: 400;
  color: #333333;
}

.case-section {
  background-color: #FFFFFF;
}

.case-section .tab-content {
  font-size: 20px;
  color: #333333;
}

.case-section .tab-content p {
  margin-bottom: 0.5rem;
  color: #333;
  line-height: 1.7;
}

.case-section .tab-content ul {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 25px;
  padding-left: 25px;
}

.case-section .tab-content ul li {
  color: #555;
  line-height: 1.2;
  margin: 0 10px;
}

.case-section .tab-content .text-primary {
  color: #2F63FF !important;
}

.action-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 100px 13%;
  min-height: 400px;
  background: url('../images/zxszr/action_bg.png') no-repeat right center;
  background-size: contain;
}

.action-section .action-text h2 {
  font-size: 36px;
  font-weight: bold;
  color: #333333;
  line-height: 1.6;
}

.action-section .action-text h2 span {
  color: #4540FF;
}

.action-section .action-text p {
  font-size: 36px;
  color: #333333;
  margin-top: 30px;
  font-weight: bold;
}