/* SG401 产品页：桌面 1920 还原（适配进 mobile.css） */

.sg401-hero {
  position: relative;
  width: 100%;
  height: 1080px;
  overflow: hidden;
  background: #000;
}

.sg401-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.sg401-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.sg401-hero__bg.media::after {
  display: none;
}

.sg401-hero__content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
  padding-top: 112px;
  text-align: center;
}

.sg401-hero__texts {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  width: 100%;
  max-width: 694px;
}

.sg401-hero__lead {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  width: 100%;
  max-width: 624px;
}

.sg401-hero__eyebrow {
  font-size: var(--desc-size);
  line-height: 28px;
  color: var(--color-white);
}

.sg401-hero__title {
  font-size: var(--display-size);
  font-weight: 700;
  line-height: 60px;
  color: var(--color-white);
}

.sg401-hero__sub {
  font-size: var(--desc-size);
  line-height: 28px;
  color: var(--color-white-60);
}

.sg401-head {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  width: 100%;
  max-width: 1008px;
  margin: 0 auto 60px;
  text-align: center;
}

.sg401-head__titles {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.sg401-head .sec-title {
  line-height: 1.3;
}

.sg401-head .sec-desc {
  max-width: 1008px;
  line-height: 32px;
}

.sg401-battery {
  background: var(--color-module);
  padding: var(--section-y) 0;
}

.sg401-stage {
  width: 100%;
  overflow: hidden;
  border-radius: 20px;
  aspect-ratio: 1200 / 500;
  background: #edf1fa;
}

.sg401-battery .sg401-stage {
  aspect-ratio: 1200 / 740;
}

.sg401-stage img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.sg401-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 40px;
  margin-top: 40px;
}

.sg401-pair-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
  padding: 30px 20px;
  border-radius: 20px;
  background: var(--color-white);
}

.sg401-pair-card__title {
  display: flex;
  align-items: center;
  gap: 6px;
}

.sg401-pair-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.sg401-pair-card__icon img {
  display: block;
  object-fit: contain;
}

.sg401-pair-card h3 {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
}

.sg401-pair-card p {
  font-size: 14px;
  line-height: 22px;
  color: var(--color-sub);
}

.sg401-noise {
  background: var(--color-module);
  padding: var(--section-y) 0;
}

.sg401-upload {
  background: var(--color-white);
  padding: var(--section-y) 0;
}

.sg401-upload__cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 40px;
  margin-bottom: 16px;
}

.sg401-upload-card {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  min-width: 0;
  padding: 30px 20px;
  border-radius: 20px;
  background: var(--color-module);
}

.sg401-upload-card img {
  display: block;
  flex-shrink: 0;
  object-fit: contain;
}

.sg401-upload-card span {
  font-size: 20px;
  line-height: 1;
  color: var(--color-text);
}

.sg401-upload__visual {
  display: block;
  width: 100%;
  height: auto;
}

.sg401-upload__note {
  margin-top: 24px;
  font-size: 12px;
  line-height: 18px;
  color: var(--color-sub);
  text-align: center;
}


.sg401-locate {
  background: var(--color-dark);
  padding: var(--section-y) 0;
}

.sg401-locate .sec-title {
  color: var(--color-white);
}

.sg401-locate__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 60px;
}

.sg401-locate__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  min-width: 0;
  text-align: center;
}

.sg401-locate__photo {
  width: 100%;
  overflow: hidden;
  border-radius: 20px;
  aspect-ratio: 453 / 300;
  background: #1a2030;
}

.sg401-locate__photo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.sg401-locate__item h3 {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-white);
}

.sg401-locate__item p {
  font-size: 16px;
  line-height: 24px;
  color: rgba(255, 255, 255, 0.6);
}

.sg401-iot {
  background: var(--color-white);
  padding: var(--section-y) 0;
}

.sg401-iot__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 60px;
}

.sg401-iot__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  min-width: 0;
  text-align: center;
}

.sg401-iot__photo.media {
  width: min(494px, 100%);
  overflow: hidden;
  background: transparent;
}

.sg401-iot__photo.media img {
  object-fit: contain;
}

.sg401-iot__photo--laptop,
.sg401-iot__photo--dash {
  aspect-ratio: 494 / 300;
}

.sg401-iot__item h3 {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
}

.sg401-iot__item p {
  font-size: 16px;
  line-height: 24px;
  color: var(--color-sub);
}

.sg401-guard {
  padding: var(--section-y) 0;
  background: var(--color-white);
}

.sg401-guard__bleed {
  width: min(1880px, calc(100% - 40px));
  margin: 0 auto;
}

.sg401-guard__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.sg401-guard-card {
  position: relative;
  display: block;
  width: 100%;
  min-width: 0;
  overflow: hidden;
  border-radius: 20px;
  aspect-ratio: 930 / 390;
}

.sg401-guard-card img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.sg401-guard-card figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 16px 24px;
  background: rgba(0, 0, 0, 0.62);
  color: var(--color-white);
  text-align: center;
}

.sg401-guard-card h3 {
  font-size: 20px;
  font-weight: 700;
  line-height: 32px;
}

.sg401-guard-card p {
  font-size: 16px;
  line-height: 1.4;
}

.sg401-cases {
  background: var(--color-white);
  padding: var(--section-y) 0;
}

.sg401-cases__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 40px;
}

.sg401-case {
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
  border-radius: 20px;
  background: var(--color-module);
}

.sg401-case__cover {
  width: 100%;
  aspect-ratio: 580 / 300;
}

.sg401-case__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sg401-case__body {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 20px;
}

.sg401-case__body h3 {
  font-size: 20px;
  font-weight: 700;
  line-height: 32px;
  color: var(--color-text);
}

.sg401-case__body p {
  margin-top: 8px;
  font-size: 16px;
  line-height: 24px;
  color: var(--color-sub);
}

.sg401-case__line {
  width: 100%;
  height: 1px;
  background: var(--color-line);
}

.sg401-case__metric {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  line-height: 20px;
  color: var(--color-sub);
}

.sg401-case__metric strong {
  color: var(--color-primary);
  font-weight: 700;
}

.sg401-case__metric strong span {
  margin: 0;
  padding: 0;
  background: none;
  color: inherit;
  font-size: inherit;
  font-weight: inherit;
  line-height: inherit;
}

.sg401-vs {
  background: var(--color-module);
  padding: var(--section-y) 0;
}

.sg401-vs__wrap {
  width: 100%;
  border: 1px solid var(--color-line);
  border-radius: 20px;
  overflow: hidden;
  background: var(--color-white);
}

.sg401-vs__table {
  width: 100%;
  table-layout: fixed;
  border-collapse: collapse;
}

.sg401-vs__table th,
.sg401-vs__table td {
  padding: 36px 16px;
  text-align: center;
  vertical-align: middle;
  border-bottom: 1px solid var(--color-line);
}

.sg401-vs__table th:first-child,
.sg401-vs__table td:first-child {
  padding-left: 24px;
  text-align: left;
}

.sg401-vs__table thead {
  background: linear-gradient(180deg, #ffffff 0.5%, #f4f4f4 99%);
}

.sg401-vs__table thead tr:last-child th {
  height: auto;
  padding-top: 0;
  padding-bottom: 24px;
  background: transparent;
  border-bottom: 1px solid var(--color-line);
  font-size: 16px;
  font-weight: 700;
  line-height: 24px;
  color: #000;
  vertical-align: middle;
}

.sg401-vs__table thead th:first-child,
.sg401-vs__table tbody th {
  width: 28%;
}

.sg401-vs__photos td {
  height: auto;
  padding-top: 30px;
  padding-bottom: 16px;
  border-bottom: 0;
  background: transparent;
}

.sg401-vs__thumb {
  display: block;
  width: auto;
  height: 137px;
  max-width: 100%;
  margin: 0 auto;
  object-fit: contain;
}

.sg401-vs__table tbody th {
  font-size: 16px;
  font-weight: 400;
  line-height: 24px;
  color: var(--color-text);
}

.sg401-vs__table tbody td {
  font-size: 16px;
  line-height: 20px;
  color: var(--color-sub);
}

.sg401-vs__table tbody td:nth-child(2) {
  color: var(--color-primary);
}

.sg401-vs__table tbody tr:last-child th,
.sg401-vs__table tbody tr:last-child td {
  border-bottom: 0;
}

.sg401-why {
  padding: var(--section-y) 0;
  background: var(--color-white);
}

.sg401-why__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 40px;
}

.sg401-why-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
  padding: 40px 20px;
  border-radius: 20px;
  background: var(--color-module);
}

.sg401-why-card__title {
  display: flex;
  align-items: center;
  gap: 11px;
}

.sg401-why-card__title img {
  flex-shrink: 0;
  object-fit: contain;
}

.sg401-why-card h3 {
  font-size: 20px;
  font-weight: 700;
  line-height: 32px;
  color: var(--color-text);
}

.sg401-why-card p {
  font-size: 16px;
  line-height: 24px;
  color: var(--color-sub);
}

.sg401-cta h2 {
  white-space: normal;
  line-height: 1.25;
}