* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Arial', sans-serif;
}

html {
  scroll-behavior: smooth;
  /* 平滑滚动 */
}

body {
  background-color: #ffffff;
  color: #333333;
  line-height: 1.6;
  overflow-x: hidden;
  /* 禁止横向滚动 */
}

.container {
  max-width: 1372px;
  min-width: 1200px;
  margin: 0 auto;
  padding: 60px 20px;
  width: 100%;
  padding: 0;
}

/* 分割线 */
.divider {
  border-bottom: 1px solid #eee;
  margin: 60px 0;
}

/* 统一模块标题样式 */
.section-header {
  margin-bottom: 40px;
}

.section-title {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 2px;
  color: #333;
  position: relative;
  padding-top: 10px;
}

.section-title::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 60px;
  height: 3px;
  background-color: #ed1c24;
  /* OCBC 品牌红 */
}

.section-header1 .section-title::before {
  display: none;
}

/* ===================== 模块1：首页介绍 + 感言卡片 ===================== */
.ocbc-intro {
  font-size: 20px;
  color: #444;
  max-width: 800px;
}

.testimonial-card {
  max-width: 1180px;
  background-color: #fff;
  border-radius: 12px;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.05);
  padding: 40px;
  display: flex;
  align-items: flex-start;
  gap: 30px;
  margin-top: 30px;
}

.profile-img {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  background-color: #f0f0f0;
}

.testimonial-quote {
  font-size: 18px;
  color: #444;
  margin-bottom: 20px;
  line-height: 1.7;
}

.author-name {
  font-size: 20px;
  font-weight: 700;
  color: #222;
  margin-bottom: 5px;
}

.author-title {
  font-size: 16px;
  color: #555;
}

/* ===================== 模块2：数据统计卡片 ===================== */
.section-intro {
  font-size: 18px;
  color: #444;
  max-width: 900px;
}

.stats-grid {
  margin-top: 30px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.stat-card {
  background-color: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
  padding: 30px;
  transition: all 0.3s ease;
  text-align: center;
}

.stat-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #f5f5f5;
  border-radius: 50%;
}

.stat-icon svg {
  width: 40px;
  height: 40px;
  fill: #666;
}

.stat-label {
  font-size: 24px;
  font-weight: 700;
  color: #222;
  margin-bottom: 24px;
}

.stat-number {
  font-size: 36px;
  font-weight: 700;
  color: #111;
  margin-bottom: 16px;
}

.stat-desc {
  font-size: 16px;
  color: #555;
  line-height: 1.6;
}

/* ===================== 模块3：视频 + 成长介绍 + VYBE ===================== */

.videos-navs-contents {
  margin-bottom: 40px;
  display: -webkit-box;
  display: -webkit-flex;
  display: -moz-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: start;
  -webkit-justify-content: flex-start;
  -moz-box-pack: start;
  -ms-flex-pack: start;
  justify-content: flex-start;
  -webkit-box-align: start;
  -webkit-align-items: flex-start;
  -moz-box-align: start;
  -ms-flex-align: start;
  align-items: flex-start;
  gap: 30px;
}

.videos-navs-contents .video-navs {
  display: -webkit-box;
  display: -webkit-flex;
  display: -moz-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-flex-direction: column;
  -ms-flex-direction: column;
  flex-direction: column;
  width: 160px;
  flex-shrink: 0;
}

.videos-navs-contents .video-navs .video-nav {
  width: 160px;
  height: 96px;
  position: relative;
  margin-bottom: 8px;
  -webkit-transition: all 0.3s ease;
  -o-transition: all 0.3s ease;
  transition: all 0.3s ease;
  border: 2px solid transparent;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}

.videos-navs-contents .video-navs .video-nav:hover {
  border: 0;
  cursor: pointer;
  -webkit-transform: translateY(-2px);
  -ms-transform: translateY(-2px);
  transform: translateY(-2px);
  -webkit-box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.videos-navs-contents .video-navs .video-nav.active {
  border: 0;
  -webkit-box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.videos-navs-contents .video-navs .video-nav.active .video-nav-text {
  opacity: 0;
}

.videos-navs-contents .video-navs .video-nav .video-poster {
  display: inline-block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.videos-navs-contents .video-navs .video-nav .video-nav-text {
  -webkit-box-sizing: content-box;
  -moz-box-sizing: content-box;
  box-sizing: content-box;
  width: 100%;
  height: 100%;
  position: absolute;
  left: 0px;
  top: 0px;
  font-size: 14px;
  font-weight: 400;
  color: #ffffff;
  display: -webkit-box;
  display: -webkit-flex;
  display: -moz-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: center;
  -webkit-justify-content: center;
  -moz-box-pack: center;
  -ms-flex-pack: center;
  justify-content: center;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -moz-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  background: rgb(0 0 0 / 35%);
}

.videos-navs-contents .video-navs .video-nav .video-nav-text .video-nav-text-c {
  max-width: 100%;
  padding: 6px;
}

.videos-navs-contents .video-nav-contents {
  -webkit-box-flex: 1;
  -webkit-flex: 1;
  -moz-box-flex: 1;
  -ms-flex: 1;
  flex: 1;
}

.videos-navs-contents .video-nav-contents {
  position: relative;
}

.videos-navs-contents .video-nav-contents .video-player-info {
  display: -webkit-box;
  display: -webkit-flex;
  display: -moz-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: start;
  -webkit-justify-content: flex-start;
  -moz-box-pack: start;
  -ms-flex-pack: start;
  justify-content: flex-start;
  -webkit-box-align: start;
  -webkit-align-items: flex-start;
  -moz-box-align: start;
  -ms-flex-align: start;
  align-items: flex-start;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -moz-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  opacity: 0;
  visibility: hidden;
  -webkit-transform: translateX(30px);
  -ms-transform: translateX(30px);
  transform: translateX(30px);
  -webkit-transition: opacity 0.5s ease, -webkit-transform 0.5s ease, visibility 0.5s ease;
  transition: opacity 0.5s ease, -webkit-transform 0.5s ease, visibility 0.5s ease;
  -o-transition: opacity 0.5s ease, -o-transform 0.5s ease, visibility 0.5s ease;
  transition: opacity 0.5s ease, transform 0.5s ease, visibility 0.5s ease;
  transition: opacity 0.5s ease, transform 0.5s ease, visibility 0.5s ease, -webkit-transform 0.5s ease, -o-transform 0.5s ease;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
}

.videos-navs-contents .video-nav-contents .video-player-info.active {
  opacity: 1;
  visibility: visible;
  -webkit-transform: translateX(0);
  -ms-transform: translateX(0);
  transform: translateX(0);
  position: relative;
}

.videos-navs-contents .video-nav-contents .video-player-info .video-wrapper {
  -webkit-box-flex: 3;
  -webkit-flex: 3;
  -moz-box-flex: 3;
  -ms-flex: 3;
  flex: 3;
  margin: 0px 40px 0px 20px;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  position: relative;
  padding-bottom: 35%;
}

.videos-navs-contents .video-nav-contents .video-player-info .video-wrapper .video-player {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.videos-navs-contents .video-nav-contents .video-player-info .video-info {
  -webkit-box-flex: 2;
  -webkit-flex: 2;
  -moz-box-flex: 2;
  -ms-flex: 2;
  flex: 2;
  display: -webkit-box;
  display: -webkit-flex;
  display: -moz-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-pack: start;
  -webkit-justify-content: flex-start;
  -moz-box-pack: start;
  -ms-flex-pack: start;
  justify-content: flex-start;
  -webkit-box-align: center;
  -webkit-align-items: center;
  -moz-box-align: center;
  -ms-flex-align: center;
  align-items: center;
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
}

.videos-navs-contents .video-nav-contents .video-player-info .video-info .video-title {
  width: 100%;
  font-size: 20px;
  font-weight: bold;
  color: #484848;
  margin-bottom: 27px;
}

.videos-navs-contents .video-nav-contents .video-player-info .video-info .video-desc {
  width: 100%;
  font-size: 14px;
  line-height: 26px;
  font-weight: 400;
  color: #484848;
}

.disclaimer {
  font-size: 14px;
  color: #666;
  margin-bottom: 30px;
  line-height: 2;
}

.mentorme-section {
  display: grid;
  grid-template-columns: 1fr 3fr 2fr;
  gap: 20px;
  margin-bottom: 60px;
  align-items: start;
}

.video-thumbs {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.video-thumb {
  width: 100%;
  border-radius: 4px;
  overflow: hidden;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 2px solid transparent;
  position: relative;
}

.video-thumb img {
  width: 100%;
  height: 80px;
  object-fit: cover;
  display: block;
}

.video-thumb:hover {
  opacity: 0.9;
}

.video-thumb.active {
  border-color: #ed1c24;
}

.thumb-label {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: rgba(0, 0, 0, 0.6);
  color: #fff;
  font-size: 12px;
  padding: 5px 10px;
  text-align: left;
}

.video-main {
  position: relative;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  background-color: #f5f5f5;
}

.video-main video {
  width: 100%;
  height: 320px;
  object-fit: cover;
}

.mentorme-text h3 {
  font-size: 18px;
  font-weight: 700;
  color: #222;
  margin-bottom: 16px;
}

.mentorme-text p {
  font-size: 16px;
  color: #444;
  line-height: 1.7;
}

.growth-section {
  margin-bottom: 60px;
}

.growth-section h3 {
  font-size: 20px;
  font-weight: 700;
  color: #222;
  margin-bottom: 16px;
}

.growth-section p {
  font-size: 16px;
  color: #444;
  line-height: 1.7;
}

.vybe-section {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
  align-items: center;
}

.vybe-image {
  width: 100%;
  overflow: hidden;
  height: auto;
}

.vybe-image img {
  width: 100%;
  display: block;
}

.vybe-text h3 {
  font-size: 20px;
  font-weight: 700;
  color: #222;
  margin-bottom: 16px;
}

.vybe-text p {
  font-size: 16px;
  color: #444;
  line-height: 1.7;
}

/* ===================== 模块4：思想领导力卡片 ===================== */
.thought-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.thought-card {
  background-color: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
  padding: 30px;
  transition: all 0.3s ease;
}

.thought-card:hover {
  box-shadow: 0 5px 25px rgba(0, 0, 0, 0.1);
  transform: translateY(-3px);
}

.card-title {
  font-size: 18px;
  font-weight: 700;
  color: #222;
  margin-bottom: 12px;
  line-height: 1.4;
}

.card-text {
  font-size: 16px;
  color: #444;
  margin-bottom: 20px;
  line-height: 1.6;
}

.read-more {
  font-size: 16px;
  color: #007bff;
  text-decoration: none;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* ===================== 模块5：学员故事卡片 ===================== */
.stories-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.story-card {
  display: flex;
  flex-direction: column;
}

.story-image {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  margin-bottom: 20px;
}
.story-image img {
  width: 100%;
  display: block;
}

.story-title {
  margin-top: 0;
  font-size: 20px;
  font-weight: 700;
  color: #222;
  margin-bottom: 20px;
  line-height: 1.4;
  min-height: 84px;
}

/* ==============================================
           响应式断点：平板 576px ~ 992px
           ============================================== */
@media (max-width: 992px) {
  .container {
    max-width: 100%;
    min-width: auto;
    padding: 40px 20px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .mentorme-section {
    grid-template-columns: 1fr;
  }

  .video-thumbs {
    flex-direction: row;
  }

  .vybe-section {
    grid-template-columns: 1fr;
  }

  .thought-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stories-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* 视频模块：平板适配 */
  .staff-introduction-container {
    margin-bottom: 40px;
  }

  .videos-navs-contents {
    flex-direction: column;
    gap: 20px;
  }

  .videos-navs-contents .video-navs {
    width: 100%;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 10px;
  }

  .videos-navs-contents .video-navs .video-nav {
    width: calc(50% - 5px);
    height: 80px;
  }

  .videos-navs-contents .video-nav-contents {
    width: 100%;
  }

  .videos-navs-contents .video-nav-contents .video-player-info {
    flex-direction: column;
    gap: 20px;
  }

  .videos-navs-contents .video-nav-contents .video-player-info .video-wrapper {
    margin: 0;
    width: 100%;
    flex: none;
    padding-bottom: 56.25%;
  }

  .videos-navs-contents .video-nav-contents .video-player-info .video-info {
    width: 100%;
  }
}

/* ==============================================
           响应式断点：手机 < 576px (核心移动端适配)
           ============================================== */
@media (max-width: 576px) {
  body {
    min-width: 320px;
    overflow-x: hidden;
  }

  .container {
    max-width: 100%;
    min-width: auto;
    padding: 30px 15px;
  }

  .divider {
    margin: 40px 0;
  }

  /* 标题字体缩小 */
  .section-header {
    margin-bottom: 25px;
  }

  .section-title {
    font-size: 14px;
  }

  /* 感言卡片：上下布局 + 居中 */
  .testimonial-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 25px 20px;
    gap: 20px;
  }

  .profile-img {
    width: 120px;
    height: 120px;
  }

  .ocbc-intro,
  .section-intro {
    font-size: 16px;
  }

  .testimonial-quote {
    font-size: 16px;
  }

  .author-name {
    font-size: 18px;
  }

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

  /* 数据卡片：单列 */
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .stat-card {
    padding: 30px 15px;
  }

  .stat-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 16px;
  }

  .stat-label {
    font-size: 20px;
    margin-bottom: 16px;
  }

  .stat-number {
    font-size: 28px;
  }

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

  /* 视频模块：手机端适配 */
  .staff-introduction-container {
    margin-bottom: 30px;
  }

  .videos-navs-contents {
    flex-direction: column;
    gap: 15px;
  }

  .videos-navs-contents .video-navs {
    width: 100%;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 15px;
  }

  .videos-navs-contents .video-navs .video-nav {
    width: calc(50% - 4px);
    height: 70px;
    margin-bottom: 0;
  }

  .videos-navs-contents .video-navs .video-nav.active {
    border-width: 2px;
  }

  .videos-navs-contents .video-nav-contents {
    width: 100%;
  }

  .videos-navs-contents .video-nav-contents .video-player-info {
    flex-direction: column;
    gap: 15px;
    opacity: 1;
    visibility: visible;
    -webkit-transform: none;
    -ms-transform: none;
    transform: none;
    position: relative;
    display: -webkit-box;
    display: -webkit-flex;
    display: -moz-box;
    display: -ms-flexbox;
    display: flex;
  }

  .videos-navs-contents .video-nav-contents .video-player-info:not(.active) {
    display: none;
  }

  .videos-navs-contents .video-nav-contents .video-player-info .video-wrapper {
    margin: 0;
    width: 100%;
    flex: none;
    padding-bottom: 56.25%;
  }

  .videos-navs-contents .video-nav-contents .video-player-info .video-wrapper .video-player {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
  }

  .videos-navs-contents .video-nav-contents .video-player-info .video-info {
    width: 100%;
    padding: 0;
  }

  .videos-navs-contents .video-nav-contents .video-player-info .video-info .video-title {
    font-size: 16px;
    margin-bottom: 12px;
  }

  .videos-navs-contents .video-nav-contents .video-player-info .video-info .video-desc {
    font-size: 13px;
    line-height: 1.8;
  }

  /* 旧版视频区域：自适应高度 */
  .video-main {
    height: auto;
    min-height: 200px;
  }

  .video-thumb {
    height: 60px;
  }

  .mentorme-text h3,
  .growth-section h3,
  .vybe-text h3 {
    font-size: 17px;
  }

  .mentorme-text p,
  .growth-section p,
  .vybe-text p {
    font-size: 15px;
  }

  /* VYBE 图片自适应 */
  .vybe-image {
    height: auto;
    min-height: 200px;
  }

  /* 思想领导力卡片：单列 + 缩小内边距 */
  .thought-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .thought-card {
    padding: 20px;
  }

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

  .card-text {
    font-size: 14px;
  }

  /* 学员故事卡片：单列 */
  .stories-grid {
    grid-template-columns: 1fr;
    gap: 25px;
  }

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