/* 数字钥匙页小屏。本文件由 media=(max-width: 980px) 引入，内部不再包 @media。 */
/* 字号层级：区块标题 > 卡片标题 > 正文。 */
.section {
  width: 100%;
  max-width: none;
}

.digital-title,
.digital-banner-title {
  font-size: 1.5rem;
  line-height: 2rem;
}
.digital-lead,
.digital-about-desc {
  font-size: 0.875rem;
  line-height: 1.375rem;
}
.digital-business-title,
.digital-principle-title,
.digital-tech-title {
  font-size: 1.125rem;
  line-height: 1.5rem;
}
.digital-business-desc,
.digital-principle-desc,
.digital-principle-desc--single,
.digital-tech-desc,
.digital-banner-desc {
  font-size: 0.875rem;
  line-height: 1.375rem;
}
.digital-award-sub {
  font-size: 0.8125rem;
  line-height: 1.25rem;
}
.digital-award-main {
  font-size: 0.875rem;
  line-height: 1.375rem;
}

.digital-banner {
  height: 28rem;
}
.digital-banner-copy {
  padding-top: 8rem;
}
.digital-banner-desc {
  width: auto;
}

.digital-business,
.digital-principle,
.digital-tech,
.digital-about {
  padding: 2.5rem 0;
}
.digital-alliance {
  height: auto;
  padding-bottom: 2.5rem;
}
.digital-alliance .section {
  padding-top: 2.5rem;
}

.digital-business-head,
.digital-principle-head,
.digital-alliance-head,
.digital-about-copy,
.digital-about-desc,
.digital-awards {
  width: 100%;
}

.digital-business-grid,
.digital-principle-grid,
.digital-tech-grid {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.digital-business-card,
.digital-principle-card,
.digital-principle-cover,
.digital-tech-card {
  width: 100%;
  height: auto;
}

.digital-business-card {
  height: 16rem;
}
.digital-business-copy {
  padding: 0 1.25rem 1.25rem;
}
.digital-business-desc {
  width: auto;
}

.digital-principle-cover {
  height: 12.5rem;
}
.digital-principle-title,
.digital-principle-desc,
.digital-principle-desc--single {
  margin-left: 1.25rem;
  margin-right: 1.25rem;
  width: auto;
}
.digital-principle-card:first-child .digital-principle-title {
  margin-left: 1.25rem;
}
.digital-principle-title {
  margin-top: 1.25rem;
}
.digital-principle-desc {
  margin-bottom: 1.5rem;
}

.digital-tech-card,
.digital-tech-grid .digital-tech-card:nth-child(n + 4) {
  padding: 1.5rem;
}

/* 高度可改；全屏/视口浮层/iOS Android 差异见 poster-video.md，禁止只改这一行 */
.digital-video {
  height: 16rem;
}

.digital-alliance-logos {
  width: 100%;
}
.digital-alliance-logo {
  width: calc((100% - 1.25rem) / 2);
  height: auto;
  min-height: 0;
}
.digital-alliance-logo img {
  height: auto;
}

.digital-about-inner {
  flex-direction: column;
  gap: 1.5rem;
}
.digital-awards {
  flex-direction: column;
  width: 100%;
  gap: 1rem;
  padding-top: 0;
}
.digital-award-col {
  width: 100%;
  gap: 1rem;
}
.digital-award-sub,
.digital-award-main {
  white-space: normal;
}