/* 数字钥匙页。Figma 1920 版心 1520px = 95rem。禁止写 max-width 媒体查询。 */

.section {
  width: 95rem;
  max-width: 95rem;
}

.digital-title {
  margin: 0;
  font-family: s-semibold, sans-serif;
  font-size: 3.125rem;
  line-height: 4.125rem;
  color: #1c1c1c;
}
.digital-lead {
  margin: 0.4375rem 0 0;
  font-family: s-regular, sans-serif;
  font-size: 1.5rem;
  line-height: 2rem;
  color: #5d5e62;
}

#business,
#principle,
#core-tech,
#alliance,
#about,
#contact {
  scroll-margin-top: 5rem;
}

/* Banner：单图，文案进场一次，不循环 */
.digital-banner {
  position: relative;
  width: 100%;
  height: 50rem;
  overflow: hidden;
}
.digital-banner-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
}
.digital-banner-copy {
  position: relative;
  z-index: 2;
  height: 100%;
  padding-top: 9.375rem;
  text-align: center;
}
.digital-banner-title,
.digital-banner-desc {
  margin: 0 auto;
  opacity: 0;
  transform: translateY(-3.75rem);
}
.digital-banner-title {
  font-family: s-semibold, sans-serif;
  font-size: 3.125rem;
  line-height: 4.125rem;
  color: #292929;
}
.digital-banner-desc {
  width: 35.125rem;
  margin-top: 0.5625rem;
  font-family: s-regular, sans-serif;
  font-size: 1.5rem;
  line-height: 2rem;
  color: #414652;
}
.digital-banner.is-ready .digital-banner-title {
  transform: translateY(0) translateZ(0);
  opacity: 1;
  transition: opacity .6s linear, transform .6s cubic-bezier(.215,.61,.355,1);
}
.digital-banner.is-ready .digital-banner-desc {
  transform: translateY(0) translateZ(0);
  opacity: 1;
  transition: opacity .6s linear .1s, transform .6s cubic-bezier(.215,.61,.355,1) .1s;
}

/* 主营业务方向 */
.digital-business {
  padding: 4.5rem 0 5rem;
  background: #f5f5f7;
}
.digital-business-head {
  width: 55.625rem;
  margin: 0 auto;
  text-align: center;
}
.digital-business-grid {
  display: flex;
  justify-content: space-between;
  margin-top: 2.9375rem;
}
.digital-business-card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  width: 30rem;
  height: 31.25rem;
  overflow: hidden;
  border-radius: 0.875rem;
}
.digital-business-card img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
}
.digital-business-mask {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 16, 39, 0) 54.33%, rgba(8, 16, 39, 0.6) 100%);
}
.digital-business-copy {
  position: relative;
  z-index: 1;
  padding: 0 2.5rem 2.1875rem;
  box-sizing: border-box;
}
.digital-business-title {
  margin: 0;
  font-family: s-semibold, sans-serif;
  font-size: 1.875rem;
  line-height: 2.5rem;
  color: #fff;
}
.digital-business-desc {
  width: 25rem;
  margin: 0.6875rem 0 0;
  font-family: s-regular, sans-serif;
  font-size: 1.25rem;
  line-height: 1.6875rem;
  color: rgba(255, 255, 255, 0.8);
}
.digital-business-desc--solid {
  color: #fff;
}

/* 技术原理 */
.digital-principle {
  padding: 4.375rem 0;
}
.digital-principle-head {
  width: 50.8125rem;
  margin: 0 auto;
  text-align: center;
}
.digital-principle-grid {
  display: flex;
  justify-content: space-between;
  margin-top: 2.8125rem;
}
.digital-principle-card {
  width: 46.25rem;
  height: 44.3125rem;
  overflow: hidden;
  border-radius: 1.125rem;
  background: #f5f5f7;
}
.digital-principle-cover {
  width: 46.25rem;
  height: 26.25rem;
  overflow: hidden;
  border-radius: 1.125rem 1.125rem 0 0;
}
.digital-principle-cover img {
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
}
.digital-principle-title {
  margin: 3.375rem 0 0 3.75rem;
  font-family: s-semibold, sans-serif;
  font-size: 2.125rem;
  line-height: 2.8125rem;
  color: #1c1c1c;
}
.digital-principle-card:first-child .digital-principle-title {
  margin-left: 4.125rem;
}
.digital-principle-desc {
  width: 40.75rem;
  margin: 1.125rem 0 0 3.75rem;
  font-family: s-regular, sans-serif;
  font-size: 1.375rem;
  line-height: 1.8125rem;
  color: #52535b;
  opacity: 0.9;
}
.digital-principle-desc--single {
  width: auto;
  font-size: 1.5rem;
  line-height: 2rem;
  opacity: 1;
}

/* 核心技术 */
.digital-tech {
  padding: 4.375rem 0 5rem;
  background: #f5f5f7;
}
.digital-tech-head {
  text-align: center;
}
.digital-tech-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 2.5rem;
  margin-top: 2.8125rem;
}
.digital-tech-card {
  width: 30rem;
  height: 16.25rem;
  padding: 2.125rem 0 0 2.5rem;
  border-radius: 0.875rem;
  background: #fff;
}
.digital-tech-grid .digital-tech-card:nth-child(n + 4) {
  padding-top: 2.75rem;
}
.digital-tech-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 4.375rem;
  height: 4.375rem;
  border-radius: 50%;
  background: #f5f5f7;
  overflow: hidden;
}
.digital-tech-icon img {
  width: 100%;
  height: 100%;
  max-width: none;
}
.digital-tech-title {
  margin: 1.8125rem 0 0;
  font-family: s-semibold, sans-serif;
  font-size: 1.875rem;
  line-height: 2.5rem;
  color: #1c1c1c;
}
.digital-tech-grid .digital-tech-card:nth-child(n + 4) .digital-tech-title {
  margin-top: 1.1875rem;
}
.digital-tech-desc {
  margin: 0.625rem 0 0;
  font-family: s-regular, sans-serif;
  font-size: 1.25rem;
  line-height: 1.6875rem;
  color: #5d5e62;
}

/* 视频区块高度按本页 Figma；播放/全屏/视口浮层见 poster-video.css */
.digital-video {
  height: 56.5rem;
}

/* 行业联盟认证 */
.digital-alliance {
  position: relative;
  width: 100%;
  height: 50rem;
  overflow: hidden;
  text-align: center;
}
.digital-alliance-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
}
.digital-alliance .section {
  position: relative;
  z-index: 1;
  padding-top: 4.4375rem;
}
.digital-alliance-head {
  width: 55.625rem;
  margin: 0 auto;
}
.digital-alliance-logos {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.25rem;
  width: 41.875rem;
  margin: 2.9375rem auto 0;
}
.digital-alliance-logo {
  width: 13.125rem;
  height: 3.0625rem;
  border-radius: 0.625rem;
  background: #fff;
  box-shadow: 0 0.25rem 0.75rem rgba(0, 0, 0, 0.1);
}
.digital-alliance-logo img {
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  border-radius: 0.625rem;
}

/* 关于我们 */
.digital-about {
  padding: 4.5rem 0 4.8125rem;
}
.digital-about-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}
.digital-about-copy {
  width: 29.125rem;
}
.digital-about-copy .digital-title {
  color: #292929;
}
.digital-about-desc {
  width: 29.125rem;
  margin: 1.125rem 0 0;
  font-family: s-regular, sans-serif;
  font-size: 1.5rem;
  line-height: 2rem;
  color: #5d5e62;
}
.digital-awards {
  display: flex;
  align-items: flex-start;
  gap: 1.875rem;
  padding-top: 0.5rem;
}
.digital-award-col {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 1.875rem 2.375rem;
  width: max-content;
}
.digital-award {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  gap: 0.5rem;
}
.digital-award-ornament {
  width: 1.5rem;
  height: 3.125rem;
  max-width: none;
  flex-shrink: 0;
}
.digital-award-ornament--flip {
  transform: scaleX(-1);
}
.digital-award-text {
  flex: 1;
  min-width: 0;
  text-align: center;
}
.digital-award-sub,
.digital-award-main {
  margin: 0;
  white-space: nowrap;
}
.digital-award-sub {
  font-family: s-medium, sans-serif;
  font-size: 1.125rem;
  line-height: 1.5rem;
  color: #5d5e62;
}
.digital-award-main {
  font-family: s-demibold, sans-serif;
  font-size: 1.25rem;
  line-height: 1.6875rem;
  color: #844c30;
}