/* Product One Page Styles */

.product-one-page {
  min-height: 100vh;
  background-color: var(--color-bg);
}

/* let-line1 和 let-line2 样式 - 参考首页 product-subtitle */
.let-line1,
.let-line2 {
  position: relative;
}

.let-line1::before {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 20px;
  height: 4px;
  background-color: #1E1E20;
}

.let-line1::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: #EBEFF8;
}

.let-line2::before {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 20px;
  height: 4px;
  background-color: #2B63F8;
}

.let-line2::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: #EBEFF8;
}

.product-one-page .container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  width: 100%;
  box-sizing: border-box;
}

/* Hero Section */
.hero-section {
  padding: var(--spacing-3xl) 0;
  background:url('../images/product-one/nav-bg.png') no-repeat center center;
  position: relative;
  overflow: visible; /* 改为 visible，允许 features-section 溢出 */
  z-index: 1;
  background-size: cover;
}



.hero-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-3xl);
  position: relative;
  z-index: 1;
  justify-content: space-between;
  /* padding: var(--spacing-2xl); */
}

.hero-text {
  flex: 1;
  max-width: 600px;
}

.hero-title {
  color: var(--color-text);
  margin-bottom: var(--spacing-md);
  line-height: 1.2;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "PingFang TC", "Microsoft YaHei UI", sans-serif;
  font-weight: 600;
  font-size: 40px;
  color: #333333;
}

.hero-subtitle {
  font-size: 24px;
  margin-bottom: var(--spacing-lg);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "PingFang TC", "Microsoft YaHei UI", sans-serif;
  font-weight: 400;

  color: #2B63F8;
}

.hero-description {
  color: #333;
  line-height: 1.8;
  margin-bottom: var(--spacing-2xl);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "PingFang TC", "Microsoft YaHei UI", sans-serif;
  font-weight: 400;
  font-size: 20px;
  width: 415px;
}

.hero-actions {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.hero-image {
  flex: 1;
  /* max-width: 680px; */
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-img {
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: contain;
}

/* Features Section */
.features-section {
  background:url('../images/product-one/nav-title-bg.png') no-repeat center center;
  position: relative;
  z-index: 10;
  margin-top: -150px; /* 向上移动，覆盖 hero-section 底部一半 */
  padding: var(--spacing-3xl) 0;
  margin-bottom: -150px; /* 向下延伸，覆盖 problem-solution-section 顶部一半 */
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
}

.feature-card {
  padding: var(--spacing-2xl);
  border-radius: 12px;
  color: var(--color-text-white);
  text-align: center;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  position: relative;
}

/* 在第1、2、3个卡片后面添加竖线分割 */
.feature-card:nth-child(1)::after,
.feature-card:nth-child(2)::after,
.feature-card:nth-child(3)::after {
  content: '';
  position: absolute;
  right: calc(var(--spacing-xl) / -2);
  top: 15%;
  width: 1px;
  height: 70%;
  background-color: #ABE0FF;
  z-index: 1;
}

.feature-card:hover {
  transform: translateY(-5px);
  /* box-shadow: 0px 10px 30px rgba(43, 99, 248, 0.3); */
}

.feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.feature-title {
  font-size: 26px;
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--spacing-sm);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "PingFang TC", "Microsoft YaHei UI", sans-serif;
}

.feature-desc {
  font-size: 18px;
  line-height: 1.6;
  opacity: 0.9;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "PingFang TC", "Microsoft YaHei UI", sans-serif;
  text-align: left;
}

/* Problem & Solution Section */
.problem-solution-section {
  padding-top: calc(var(--spacing-3xl) + 150px); /* 为 features-section 留出空间 */
  padding-bottom: var(--spacing-3xl);
  background-color: var(--color-bg);
  position: relative;
  z-index: 1;
}

.problem-solution-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: start;
}
  .section-title2{
    font-size: 30px;
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
    margin-bottom: var(--spacing-xl);
    font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "PingFang TC", "Microsoft YaHei UI", sans-serif;
    /* 文字横向间距加大 */
    letter-spacing: 3px;
  }
/* 通用 section-title 样式 */
.section-title {
  font-size: 40px;
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  margin-bottom: var(--spacing-xl);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "PingFang TC", "Microsoft YaHei UI", sans-serif;
  /* 文字横向间距加大 */
  letter-spacing: 3px;
}

.section-title-center {
  text-align: center;
}

.section-title .highlight {
  color: var(--color-primary);
}
.section-title2 .highlight {
  color: var(--color-primary);
}

.section-subtitle {
  text-align: center;
  font-size: 22px;
  color: var(--color-text);
  margin-bottom: var(--spacing-2xl);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "PingFang TC", "Microsoft YaHei UI", sans-serif;
}

.problem-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.problem-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  border-radius: 8px;
}

.problem-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  object-fit: contain;
  margin-top: 4px;
}

.problem-content {
  flex: 1;
}

.problem-title {
  font-size: 22px;
  font-weight: var(--font-weight-semibold);
  color: #333;
  margin-bottom: var(--spacing-xs);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "PingFang TC", "Microsoft YaHei UI", sans-serif;
}

.problem-desc {
  font-size: 18px;
  color: #333;
  line-height: 1.8;
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "PingFang TC", "Microsoft YaHei UI", sans-serif;
}

.solution-column {
  display: flex;
  flex-direction: column;
  background: #F4F7FA;
  border-radius: 16px;
  padding: var(--spacing-xl);
}

.solution-desc {
  font-size: 18px;
  color: #333;
  line-height: 1.8;
  margin-bottom: var(--spacing-xl);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "PingFang TC", "Microsoft YaHei UI", sans-serif;
}

.solution-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.solution-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
}

.check-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  object-fit: contain;
  margin-top: 4px;
}

.solution-content {
  flex: 1;
}

.solution-title {
  font-size: 22px;
  font-weight: var(--font-weight-semibold);
  color: #2B63F8;
  margin-bottom: var(--spacing-xs);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "PingFang TC", "Microsoft YaHei UI", sans-serif;
}

.solution-text {
  font-size: 18px;
  color:  var(--color-text);
  line-height: 1.8;
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "PingFang TC", "Microsoft YaHei UI", sans-serif;
}

/* Highlights Section */
.highlights-section {
  padding: var(--spacing-3xl) 0;
  background-color: #F4F7FC;
}

.highlights-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
}

.highlight-card {
  background-color: var(--color-bg);
  border-radius: 12px;
  overflow: visible;
  box-shadow: 0px 4px 12px rgba(0, 0, 0, 0.08);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  display: flex;
  flex-direction: column;
}

.highlight-card:hover {
  transform: translateY(-5px);
  box-shadow: 0px 10px 30px rgba(43, 99, 248, 0.3);
}

.highlight-card:hover .highlight-header {
  background: linear-gradient( 270deg, #6A9EF0 0%, #5391EA 100%);
}

.highlight-header {
  background: linear-gradient( 270deg, #7FBDF6 0%, #377AE9 100%);
  border-radius: 16px 16px 0px 0px;
  padding: var(--spacing-lg) var(--spacing-xl);
  color: var(--color-text-white);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);

}

.highlight-title {
  font-size: 30px;
  font-weight: var(--font-weight-bold);
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "PingFang TC", "Microsoft YaHei UI", sans-serif;
  color: var(--color-text-white);
}

.highlight-body {
  padding: var(--spacing-xl);
  background-color: var(--color-bg);
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* 卡片1和3的样式 */
.highlight-card:nth-child(odd) .highlight-body {
  background: linear-gradient(0deg, #D7E0FE 0%, #F9FAFF 41.83%, #FFFFFF 100%);
  border-radius: 12px;
  border-top: 2px solid #fff;
  border-left: 2px solid #fff;
  border-right: 2px solid #fff;
  margin-top: -12px;
  position: relative;
  z-index: 1;
}

/* 卡片2和4的样式 */
.highlight-card:nth-child(even) .highlight-body {
  background: linear-gradient(0deg, #E3F2FB 0%, #FCFEFE 41.83%, #FFFFFF 100%);
  border-radius: 12px;
  border-top: 2px solid #fff;
  border-left: 2px solid #fff;
  border-right: 2px solid #fff;
  margin-top: -12px;
  position: relative;
  z-index: 1;
}

.highlight-desc {
  font-size: 18px;
  line-height: 1.8;
  margin: 0;
  color: var(--color-text-white);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "PingFang TC", "Microsoft YaHei UI", sans-serif;
  opacity: 0.95;
}

.highlight-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.highlight-list li {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 16px;
  color: var(--color-text);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "PingFang TC", "Microsoft YaHei UI", sans-serif;
}

.highlight-list img {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  object-fit: contain;
}

.highlight-list span {
  flex: 1;
}

/* Functionality Section */
.functionality-section {
  padding: var(--spacing-3xl) 0;
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
  background-color: #fff;
  position: relative;
}

/* 整体卡片 */
.functionality-card {
  background-color: var(--color-bg);
  border-radius: 16px;
  box-shadow: 0px 4px 20px rgba(0, 0, 0, 0.1);
  padding: 20px;
}

.functionality-grid {
  display: grid;
  grid-template-columns: 38% 1fr;
  /* gap: var(--spacing-3xl); */
  gap: 0;
  align-items: flex-start;
}

/* 左侧内容 */
.functionality-left {
  display: flex;
  flex-direction: column;
}

.functionality-tabs {
  display: flex;
  gap: 0;
  margin-bottom: var(--spacing-xl);
  border-bottom: 1px solid #E0E0E0;
  position: relative;
}

.tab-btn {
  padding: var(--spacing-md) var(--spacing-xl);
  background-color: transparent;
  border: none;
  border-radius: 0;
  font-size: 22px;
  color:#999;
  cursor: pointer;
  transition: all var(--transition-base);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "PingFang TC", "Microsoft YaHei UI", sans-serif;
  font-weight: 600;
  position: relative;
  display: inline-block;
}

.tab-btn:hover {
  color: var(--color-primary);
}

.tab-btn.active {
  color: var(--color-primary);
  font-weight: 600;
}

.tab-btn.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 50%;
  height: 3px;
  background-color: var(--color-primary);
}

.functionality-content {
  flex: 1;
}

.tab-content {
  display: none;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.tab-content.active {
  display: flex;
}

.example-box {
  background-color:#F4F7FA;
  padding: var(--spacing-xl);
  border-radius: 8px;
}

.example-box.annotation-review {
  background-color: #DFEDFE;
  background-image: url('../images/product-one/core-item-bg.png');
  background-repeat: no-repeat;
  background-position: bottom right;
  background-size: contain;
}

.example-title {
  font-size: 22px;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text);
  margin-bottom: var(--spacing-md);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "PingFang TC", "Microsoft YaHei UI", sans-serif;
}

.example-text {
  color: var(--color-text);
  line-height: 1.8;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "PingFang TC", "Microsoft YaHei UI", sans-serif;
  margin: 0;
  font-weight: 400;
  font-size: 20px;
  color: #333;
}

/* 右侧手机界面 */
.functionality-image {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  position: relative;
  width: 100%;
}

.functionality-img {
  width: 100%;
  height: auto;
  object-fit: contain;
  display: none;
  border-radius: 12px;
}

.functionality-img.active {
  display: block;
}

/* Scenario Section */
.scenario-section {
  padding: var(--spacing-3xl) 0;
  background-color: var(--color-bg-light);
}

.scenario-grid {
  display: flex;
  gap: var(--spacing-md);
  height: 400px;
}

.scenario-item {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  cursor: pointer;
  flex: 1;
  transition: flex 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.scenario-item.active {
  flex: 2;
}

.scenario-grid:hover .scenario-item:not(:hover) {
  flex: 1;
}

.scenario-item:hover {
  flex: 2;
  z-index: 10;
}

.scenario-image {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.scenario-img-default,
.scenario-img-active {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 0.5s ease;
}

.scenario-img-default {
  opacity: 1;
}

.scenario-img-active {
  opacity: 0;
}

.scenario-item.active .scenario-img-default,
.scenario-item:hover .scenario-img-default {
  opacity: 0;
}

.scenario-item.active .scenario-img-active,
.scenario-item:hover .scenario-img-active {
  opacity: 1;
}

.scenario-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--spacing-lg);
  z-index: 2;
  text-align: left;
  background: linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.6) 100%);
  transition: all 0.5s ease;
}

.scenario-item.active .scenario-overlay,
.scenario-item:hover .scenario-overlay {
  top: 0;
  bottom: auto;
  background: transparent;
}

.scenario-title {
  font-size: 32px;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-white);
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "PingFang TC", "Microsoft YaHei UI", sans-serif;
  transition: color 0.5s ease;
}

.scenario-item.active .scenario-title,
.scenario-item:hover .scenario-title {
  color: #333;
}

.scenario-desc {
  font-size: 24px;
  color: #333;
  margin: var(--spacing-xs) 0 0 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "PingFang TC", "Microsoft YaHei UI", sans-serif;
  display: none;
}

.scenario-item.active .scenario-desc,
.scenario-item:hover .scenario-desc {
  display: block;
}

/* Testimonials Section */
.testimonials-section {
  padding: var(--spacing-3xl) 0;
  background-image: url('../images/product-one/koubei-bg.png');
  background-repeat: no-repeat;
  background-position: center;
  background-size: cover;
  background-color: var(--color-bg-light);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
}

.testimonial-card {
  display: flex;
  flex-direction: column;
  border-radius: 12px;
  overflow: hidden;
  background-color: var(--color-bg);
  box-shadow: 0px 4px 12px rgba(0, 0, 0, 0.08);
}

.testimonial-header {
  position: relative;
  height: 150px;
  overflow: hidden;
  margin: 18px;
  border-radius: 12px;
}

.testimonial-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.testimonial-bg::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: #344052;
  opacity: 0.6;
  z-index: 2;
}

.testimonial-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.7) blur(2px);
}

.testimonial-title {
  position: absolute;
  top: var(--spacing-lg);
  left: var(--spacing-xl);
  right: var(--spacing-xl);
  z-index: 2;
  font-size: 26px;
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-white);
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "PingFang TC", "Microsoft YaHei UI", sans-serif;
}

.testimonial-content {
  padding: var(--spacing-lg);
  background-color: var(--color-bg);
}

.testimonial-text {
  font-size: 20px;
  color: #000;
  line-height: 1.8;
  margin: 0;
  font-weight: 400;
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "PingFang TC", "Microsoft YaHei UI", sans-serif;
  text-indent: 2em;
}

/* Statistics Section */
.statistics-section {
  padding: var(--spacing-3xl) 0;
  background-color: var(--color-bg);
}

.statistics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-3xl);
}

.stat-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
  padding: var(--spacing-xl);
  flex-direction: row;
}

.stat-icon {
  width: 120px;
  height: 120px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.stat-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.stat-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--spacing-xs);
}

.stat-number-wrapper {
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.stat-number {
  font-size: 48px;
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "PingFang TC", "Microsoft YaHei UI", sans-serif;
  line-height: 1;
}

.stat-unit {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "PingFang TC", "Microsoft YaHei UI", sans-serif;
  font-weight: 600;
  font-size: 16px;
  color: #000000;
  white-space: nowrap;
}

.stat-label {
  font-size: 16px;
  color: var(--color-text-light);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "PingFang TC", "Microsoft YaHei UI", sans-serif;
  line-height: 1.5;
  margin-top: var(--spacing-xs);
  white-space: nowrap;
  text-align: left;
}

.platform-section {
  position: relative;
  margin-top: var(--spacing-3xl);
  padding: var(--spacing-3xl) 0;
  overflow: hidden;
  border-radius: 16px;
}

.platform-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.platform-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.platform-cards {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: 10rem;
  flex-wrap: wrap;
  padding: 0 var(--spacing-xl);
}

.platform-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
}

.platform-card {
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #FFFFFF;
  border-radius: 12px;
  padding: 0;
  box-shadow: 0px 4px 12px rgba(0, 0, 0, 0.08);
  transition: box-shadow var(--transition-base);
  perspective: 1000px;
  min-width: 120px;
  min-height: 120px;
}

.platform-card:hover {
  box-shadow: 0px 8px 20px rgba(0, 0, 0, 0.12);
}

.platform-card-flip {
  position: relative;
  width: 120px;
  height: 120px;
  transform-style: preserve-3d;
  transition: transform var(--transition-base);
}

.platform-card:hover .platform-card-flip {
  transform: rotateY(180deg);
}

.platform-card-front,
.platform-card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.platform-card-back {
  transform: rotateY(180deg);
}

.platform-card-front img {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.platform-card-link {
  text-decoration: none;
  cursor: pointer;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.platform-card-link:hover {
  transform: translateY(-5px);
  box-shadow: 0px 8px 20px rgba(0, 0, 0, 0.12);
}

.platform-card-link img {
  width: 48px;
  height: 48px;
  object-fit: contain;
}

.platform-card-qrcode {
  width: 120px;
  height: 120px;
  border-radius: 8px;
  object-fit: contain;
  background-color: #ffffff;
  padding: var(--spacing-xs);
  box-sizing: border-box;
}

.platform-label {
  font-size: 16px;
  color: var(--color-text);
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "PingFang TC", "Microsoft YaHei UI", sans-serif;
  font-weight: 600;
  text-align: center;
  white-space: nowrap;
}





/* Responsive Design */
@media (max-width: 1200px) {
  .hero-title {
    font-size: 40px;
  }

  .hero-subtitle {
    font-size: 20px;
  }

  /* 当屏幕宽度不足以完整显示4个卡片时，隐藏 features-section */
  .features-section {
    display: none;
  }

  /* features-section 隐藏后，调整 problem-solution-section 的 padding */
  .problem-solution-section {
    padding-top: var(--spacing-3xl);
  }

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

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

@media (max-width: 768px) {
  .hero-content {
    flex-direction: column;
    text-align: center;
  }

  .hero-text {
    max-width: 100%;
  }

  .hero-title {
    font-size: 32px;
  }

  .hero-subtitle {
    font-size: 18px;
  }

  .hero-description {
    font-size: 16px;
  }

  .hero-actions {
    justify-content: center;
  }

  .problem-solution-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }

  .problem-item,
  .solution-item {
    flex-direction: column;
    align-items: flex-start;
  }

  .problem-icon,
  .check-icon {
    margin-top: 0;
  }

  .features-grid,
  .highlights-grid,
  .scenario-grid {
    grid-template-columns: 1fr;
  }

  .functionality-grid {
    grid-template-columns: 1fr;
  }

  .functionality-image {
    order: -1;
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
  }

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

  .platform-cards {
    gap: var(--spacing-lg);
    padding: 0 var(--spacing-md);
  }

  .platform-card {
    padding: var(--spacing-lg);
  }
}

@media (max-width: 480px) {
  .hero-section {
    padding: var(--spacing-xl) 0;
  }

  .hero-title {
    font-size: 28px;
  }

  .hero-subtitle {
    font-size: 16px;
  }

  .section-title {
    font-size: 24px;
  }

  .problem-column .section-title,
  .solution-column .section-title {
    font-size: 24px;
  }

  .problem-title,
  .solution-title {
    font-size: 18px;
  }

  .problem-desc,
  .solution-text,
  .solution-desc {
    font-size: 14px;
  }

  .feature-card,
  .highlight-card {
    padding: var(--spacing-lg);
  }

  .statistics-grid {
    grid-template-columns: 1fr;
  }

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

  .platform-cards {
    gap: var(--spacing-md);
    padding: 0 var(--spacing-sm);
  }

  .platform-card {
    padding: var(--spacing-md);
  }
/* 
  .platform-card img {
    width: 40px;
    height: 40px;
  } */

  .platform-label {
    font-size: 14px;
  }
}