/* 页面布局 */
.page-container {
  width: 100%;
  background-color: #fff;
  position: relative;
  overflow: hidden;
}

.section-padding {
  padding: 0 16px;
}

.max-width-container {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
}

/* 头部 */
.header {
  display: flex;
  justify-content: space-between;
  height: 68px;
}

.logo {
  width: 178px;
  -o-object-fit: contain;
     object-fit: contain;
}

/* Hero区域 */
.hero-section {
  background-size: cover;
  background-position: center;
  display: flex;
}

.hero-content {
  padding-top: 208px;
  padding-bottom: 288px;
  margin: 0 auto;
  width: 100%;
}

.hero-title {
  font-size: 47px;
  font-weight: 700;
  line-height: 71px;
  width: -moz-fit-content;
  width: fit-content;
}

.hero-title .highlight {
  color: #066bff;
}

.hero-subtitle {
  font-size: 38px;
  line-height: 71px;
  width: -moz-fit-content;
  width: fit-content;
}

.hero-arrow {
  margin-top: 16px;
  width: 88px;
  height: 20px;
}

/* 关于我们 */
.about-section {
  position: relative;
  transform: translateY(-72px);
  z-index: 1;
}

.about-container {
  display: flex;
  flex-wrap: wrap;
  height: 348px;
  max-width: 1400px;
}

.about-title-container {
  flex: 1;
  background-color: #066bff;
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-title {
  color: #fff;
  font-size: 33px;
  font-weight: 500;
  line-height: 46px;
}

.about-subtitle {
  color: #b4d2ff;
  font-size: 33px;
  font-weight: normal;
  line-height: 46px;
}

.about-content {
  flex: 2;
  background-color: #f3f3f3;
  display: flex;
  justify-content: center;
  align-items: center;
}

.about-text {
  font-size: 14px;
  line-height: 24px;
  padding: 16px;
}

/* 功能模块 */
.features-section {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 60px;
}

.section-title-text {
  font-size: 24px;
  font-weight: 500;
}

.features-grid {
  gap: 16px;
  justify-content: center;
  margin-top: 60px;
  max-width: 1200px;
  width: 100%;
}

.feature-card {
  width: 32%;
  min-width: 320px;
  border-radius: 24px;
  padding: 20px;
  background-color: #f3f3f3;
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 506px;
}

.feature-title {
  font-weight: bold;
  font-size: 18px;
  padding-bottom: 22px;
}

.feature-images {
  display: flex;
  flex-direction: column;
  gap: 24px;
  height: 100%;
  justify-content: center;
}

/* 技术背景 */
.tech-section {
  background-image: url(/landing/images/bg-section_3.png);
  background-size: cover;
  background-position: center;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-bottom: 64px;
  padding-top: 97px;
  padding-left: 16px;
  padding-right: 16px;
}

.tech-title {
  color: #fff;
  font-size: 30px;
  font-weight: 500;
}

.tech-content {
  color: #fff;
  font-size: 16px;
  font-weight: 500;
  line-height: 44px;
  max-width: 1120px;
  padding: 32px 0 16px;
}

/* 示例问题 */
.samples-section {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-bottom: 110px;
}

.samples-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
  width: 100%;
  padding: 0 16px;
  margin-top: 40px;
}

.samples-row {
  display: flex;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}

.msg-bubble {
  position: relative;
  border-radius: 32px;
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 500;
  min-width: 250px;
}

.msg-bubble.blue-light {
  background-color: #c7eaff;
}

.msg-bubble.blue-dark {
  background-color: #066bff;
  color: #fff;
}

/* 联系我们 */
.contact-section {
  background-color: #ecf4ff;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 48px;
}

.contact-title-en {
  font-size: 34px;
  font-weight: normal;
  line-height: 48px;
}

.contact-title-cn {
  font-size: 24px;
  font-weight: 500;
  line-height: 33px;
  margin-top: 4px;
}

.contact-divider {
  width: 46px;
  height: 7px;
  background-color: #066bff;
  margin-top: 12px;
}

.contact-separator {
  width: 620px;
  height: 1px;
  background-color: #cecece;
  margin: 32px 0 44px;
}

.contact-qrcode {
  width: 180px;
  height: 180px;
}

.contact-info {
  font-size: 14px;
  line-height: 20px;
  margin-top: 34px;
  display: flex;
  align-items: center;
}

.contact-info img {
  width: 52px;
  height: 22px;
  margin: 0 5px;
}

.triangle--blue_1 {
  position: absolute;
  bottom: 0;
  right: -12px;
  width: 0;
  height: 0;
  border-left: 40px solid transparent;
  border-right: 40px solid transparent;
  border-bottom: 20px solid #c7eaff;
}

.triangle--blue_2 {
  position: absolute;
  bottom: 0;
  right: -12px;
  width: 0;
  height: 0;
  border-left: 40px solid transparent;
  border-right: 40px solid transparent;
  border-bottom: 20px solid #066bff;
}