/* SX501 产品页：桌面 1920 还原（适配进 mobile.css） */

.sx501-hero {
  position: relative;
  width: 100%;
  height: 1080px;
  overflow: hidden;
  background: var(--color-dark);
}

.sx501-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.sx501-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 55%;
}

.sx501-hero__content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 32px;
  padding-top: 112px;
  text-align: center;
}

.sx501-hero__texts {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  width: 100%;
  max-width: 694px;
}

.sx501-hero__lead {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  width: 100%;
}

.sx501-hero__eyebrow {
  font-size: var(--desc-size);
  line-height: 28px;
  color: var(--color-white);
}

.sx501-hero__title {
  font-size: var(--display-size);
  font-weight: 700;
  line-height: 60px;
  color: var(--color-white);
}

.sx501-hero__sub {
  font-size: var(--desc-size);
  line-height: 28px;
  color: var(--color-white-60);
}

.sx501-head {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  width: 100%;
  max-width: 1008px;
  margin: 0 auto 60px;
  text-align: center;
}

.sx501-head__titles {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.sx501-head .sec-title {
  line-height: 1.3;
}

.sx501-head .sec-desc {
  max-width: 1008px;
}

.sx501-thin {
  background: var(--color-module);
  padding: var(--section-y) 0;
}

.sx501-vs {
  display: flex;
  flex-direction: column;
  width: 100%;
  border: 1px solid var(--color-line);
  border-radius: 20px;
  background: var(--color-white);
  overflow: hidden;
}

.sx501-vs__cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  padding: 30px 48px 24px;
  background: linear-gradient(180deg, #ffffff 0.5%, #f4f4f4 99%);
}

.sx501-vs__col {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  min-width: 0;
}

.sx501-vs__photo {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  width: 100%;
  height: 72px;
  background: transparent;
}

.sx501-vs__photo img {
  width: min(184px, 70%);
  height: auto;
  object-fit: contain;
}

.sx501-vs__col h3 {
  font-size: 16px;
  font-weight: 700;
  line-height: 24px;
  text-align: center;
}

.sx501-vs__row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  padding: 36px 24px;
  border-top: 1px solid var(--color-line);
}

.sx501-vs__row p {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  font-size: 16px;
  line-height: 20px;
  color: var(--color-sub);
}

.sx501-vs__row b {
  margin-left: 16px;
  font-weight: 400;
  color: inherit;
}

.sx501-vs__row p:last-child,
.sx501-vs__row p:last-child b {
  color: var(--color-primary);
}

.sx501-noise {
  padding: var(--section-y) 0;
  background: var(--color-white);
}

.sx501-split {
  display: flex;
  align-items: center;
  gap: 175px;
}

.sx501-split__copy {
  flex: 1 1 320px;
  min-width: 0;
  max-width: 455px;
  display: flex;
  flex-direction: column;
  gap: 80px;
}

.sx501-split__intro {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 40px;
}

.sx501-split__intro .sec-label {
  justify-content: flex-start;
}

.sx501-split__intro .sec-title,
.sx501-split__intro .sec-desc {
  text-align: left;
}

.sx501-split__intro .sec-title {
  line-height: 1.2;
}

.sx501-split__intro .sec-desc {
  max-width: none;
  line-height: 32px;
}

.sx501-kpis {
  display: flex;
  align-items: flex-start;
  gap: 95px;
}

.sx501-kpi {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  min-width: 0;
}

.sx501-kpi strong {
  color: var(--color-primary);
  font-size: 48px;
  font-weight: 700;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.sx501-kpi strong span {
  margin: 0;
  padding: 0;
  background: none;
  color: inherit;
  font-size: inherit;
  font-weight: inherit;
  line-height: inherit;
}

.sx501-kpi--algo strong {
  display: flex;
  align-items: flex-end;
  gap: 6px;
}

.sx501-kpi--algo strong i {
  padding-bottom: 6px;
  font-size: 16px;
  font-style: normal;
  font-weight: 700;
  line-height: 1;
}

.sx501-kpi > span {
  font-size: 14px;
  line-height: 1.2;
  color: var(--color-sub);
  text-align: center;
}

.sx501-split__visual {
  flex: 0 1 570px;
  width: min(570px, 100%);
  min-width: 0;
  overflow: visible;
  background: transparent;
}

.sx501-split__visual.media::after {
  display: none;
}

.sx501-split__visual img {
  position: static;
  display: block;
  width: 100%;
  height: auto;
}

.sx501-noise__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 40px;
  margin-top: 70px;
}

.sx501-noise-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
  padding: 30px 20px;
  border-radius: 20px;
  background: var(--color-module);
}

.sx501-noise-card__title {
  display: flex;
  align-items: center;
  gap: 6px;
}

.sx501-noise-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.sx501-noise-card__icon img {
  display: block;
  width: 28px;
  height: 28px;
  object-fit: contain;
}

.sx501-noise-card h3 {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
}

.sx501-noise-card p {
  font-size: 14px;
  line-height: 22px;
  color: var(--color-sub);
}

.sx501-upload {
  background: var(--color-module);
  padding: var(--section-y) 0;
}

.sx501-upload__cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 40px;
}

.sx501-upload-card {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  min-width: 0;
  padding: 30px 20px;
  border-radius: 20px;
  background: var(--color-primary);
  box-shadow: 0 12px 8px rgba(1, 88, 255, 0.2);
}

.sx501-upload-card img {
  display: block;
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  object-fit: contain;
}

.sx501-upload-card:nth-child(2) img {
  width: 51px;
}

.sx501-upload-card span {
  font-size: 20px;
  line-height: 1;
  color: var(--color-white);
}

.sx501-upload__visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  min-width: 0;
}

.sx501-upload__lines {
  display: block;
  width: min(858px, 100%);
  max-width: 100%;
  min-width: 0;
  height: auto;
}

.sx501-upload__rate {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  text-align: center;
}

.sx501-upload__rate strong {
  color: var(--color-primary);
  font-size: 40px;
  font-weight: 700;
  line-height: 1;
}

.sx501-upload__rate strong span {
  margin: 0;
  padding: 0;
  background: none;
  color: inherit;
  font-size: inherit;
  font-weight: inherit;
  line-height: inherit;
}

.sx501-upload__rate strong i {
  font-size: inherit;
  font-style: normal;
  font-weight: inherit;
}

.sx501-upload__rate span {
  font-size: 20px;
  line-height: 1.2;
  color: var(--color-sub);
}

.sx501-upload__product {
  display: block;
  width: min(559px, 100%);
  max-width: 100%;
  min-width: 0;
  height: auto;
  margin-top: 8px;
}

.sx501-upload__note {
  margin-top: 24px;
  font-size: 12px;
  line-height: 18px;
  color: var(--color-sub);
  text-align: center;
}

.sx501-battery {
  padding: var(--section-y) 0;
  background: var(--color-module);
}

.sx501-battery__photo {
  position: relative;
  width: 100%;
  overflow: hidden;
  border-radius: 20px;
  aspect-ratio: 1200 / 600;
}

.sx501-battery__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sx501-battery__cap {
  position: absolute;
  right: 16px;
  bottom: 16px;
  padding: 8px 12px;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.12);
  color: rgba(255, 255, 255, 0.73);
  font-size: 12px;
  line-height: 1.2;
}

.sx501-switch {
  padding: 0 0 var(--section-y);
  background: var(--color-module);
}

.sx501-switch__card {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 80px;
  width: 100%;
  min-height: 626px;
  padding: 76px 90px 48px;
  border-radius: 20px;
  background: var(--color-dark);
}

.sx501-switch__copy {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 0;
  text-align: center;
}

.sx501-switch__copy h3,
.sx501-switch__media h3 {
  margin-bottom: 9px;
  font-size: 32px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-white);
}

.sx501-switch__copy p,
.sx501-switch__media p {
  margin-bottom: 40px;
  font-size: 16px;
  line-height: 1.5;
  color: var(--color-white-60);
}

.sx501-switch__list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  width: 100%;
}

.sx501-switch__item {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 80px;
  padding: 0 26px;
  border-radius: 20px;
  background: var(--color-white-11);
  color: var(--color-white-60);
  font-size: 20px;
  line-height: 28px;
}

.sx501-switch__item img {
  width: 42px;
  height: 42px;
  flex-shrink: 0;
  object-fit: contain;
}

.sx501-switch__media {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 0;
  text-align: center;
}

.sx501-switch__badge {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: 320px;
  padding: 30px;
  border-radius: 20px;
  background: var(--color-white-11);
}

.sx501-switch__badge img {
  width: min(282px, 100%);
  height: auto;
  object-fit: contain;
}

.sx501-iot {
  background: var(--color-white);
  padding: var(--section-y) 0;
}

.sx501-iot__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 60px;
}

.sx501-iot__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  min-width: 0;
  text-align: center;
}

.sx501-iot__photo.media {
  width: min(494px, 100%);
  overflow: hidden;
  background: transparent;
}

.sx501-iot__photo.media img {
  object-fit: contain;
  object-position: center bottom;
}

.sx501-iot__photo--laptop,
.sx501-iot__photo--dash {
  aspect-ratio: 494 / 300;
}

.sx501-iot__item h3 {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
}

.sx501-iot__item p {
  font-size: 16px;
  line-height: 24px;
  color: var(--color-sub);
}

.sx501-guard {
  padding: var(--section-y) 0;
  background: var(--color-module);
}

.sx501-guard__bleed {
  width: min(1880px, calc(100% - 40px));
  margin: 0 auto;
}

.sx501-guard__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.sx501-guard__left,
.sx501-guard__right {
  min-width: 0;
}

.sx501-guard__left {
  display: flex;
}

.sx501-guard__right {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.sx501-guard-card {
  position: relative;
  display: block;
  width: 100%;
  min-width: 0;
  overflow: hidden;
  border-radius: 20px;
}

.sx501-guard-card img {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.sx501-guard-card--tall {
  width: 100%;
  aspect-ratio: 930 / 800;
}

.sx501-guard-card--half {
  flex: 1 1 0;
  min-height: 0;
  aspect-ratio: 930 / 390;
}

.sx501-guard-card figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  min-height: 90px;
  box-sizing: border-box;
  padding: 18px 24px;
  background: rgba(0, 0, 0, 0.62);
  color: var(--color-white);
  text-align: center;
}

.sx501-guard-card h3 {
  font-size: 20px;
  font-weight: 700;
  line-height: 32px;
}

.sx501-guard-card p {
  font-size: 16px;
  line-height: 1.4;
}

.sx501-cases {
  background: var(--color-white);
  padding: var(--section-y) 0;
}

.sx501-cases__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 40px;
}

.sx501-case {
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
  border-radius: 20px;
  background: var(--color-module);
}

.sx501-case__cover {
  width: 100%;
  aspect-ratio: 580 / 300;
}

.sx501-case__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sx501-case__body {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 20px;
}

.sx501-case__body h3 {
  font-size: 20px;
  font-weight: 700;
  line-height: 32px;
  color: var(--color-text);
}

.sx501-case__body p {
  margin-top: 8px;
  font-size: 14px;
  line-height: 22px;
  color: var(--color-sub);
}

.sx501-case__line {
  width: 100%;
  height: 1px;
  background: var(--color-line);
}

.sx501-case__metric {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  line-height: 20px;
  color: var(--color-sub);
}

.sx501-case__metric strong {
  color: var(--color-primary);
  font-weight: 700;
}

.sx501-case__metric strong span {
  margin: 0;
  padding: 0;
  background: none;
  color: inherit;
  font-size: inherit;
  font-weight: inherit;
  line-height: inherit;
}

.sx501-why {
  padding: var(--section-y) 0;
  background: var(--color-module);
}

.sx501-why__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 40px;
}

.sx501-why-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
  padding: 40px 20px;
  border-radius: 20px;
  background: var(--color-white);
}

.sx501-why-card__title {
  display: flex;
  align-items: center;
  gap: 11px;
}

.sx501-why-card__title img {
  width: 28px;
  height: 28px;
  object-fit: contain;
}

.sx501-why-card h3 {
  font-size: 20px;
  font-weight: 700;
  line-height: 32px;
  color: var(--color-text);
}

.sx501-why-card p {
  font-size: 14px;
  line-height: 22px;
  color: var(--color-sub);
}

.sx501-cta h2 {
  white-space: normal;
  line-height: 1.25;
}

/* 13 寸：只加大顶栏左右留白，菜单间距保持原样 */
@media (min-width: 1024px) and (max-width: 1512px) {
  .page--sx501 .header {
    padding-left: max(80px, calc((100% - 1200px) / 2));
    padding-right: max(80px, calc((100% - 1200px) / 2));
  }

  .page--sx501 .header__inner {
    width: 100%;
    max-width: none;
  }
}