/* 全栈自研架构页桌面 1920 还原（只放桌面稿，适配进 mobile.css） */

/* 首屏：沿用 iot-hero 左对齐结构，与设计稿一致 */
.arch-hero {
  background: #000;
}

/* 架构全景：浅底 */
.arch-pano {
  background: var(--color-module);
  padding: var(--section-y) 0;
}

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

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

.arch-pano__head .sec-title {
  line-height: 1.3;
}

.arch-pano__head .sec-desc {
  line-height: 32px;
}

/* 全景列表：还原设计稿三列 + 横线分隔，无图标无色块 */
.arch-pano-list {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
}

.arch-pano-list__head,
.arch-pano-list__row {
  display: grid;
  grid-template-columns: 334px 433px minmax(0, 1fr);
  align-items: start;
  column-gap: 0;
}

.arch-pano-list__head {
  padding-bottom: 18px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.12);
  font-size: 20px;
  font-weight: 500;
  line-height: 20px;
  color: var(--color-text);
}

.arch-pano-list__row {
  padding: 30px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  font-size: 16px;
  line-height: 20px;
}

.arch-pano-list__row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.arch-pano-list__layer {
  color: var(--color-text);
}

.arch-pano-list__cap,
.arch-pano-list__tech {
  min-width: 0;
  color: var(--color-primary);
}

/* 技术能力：暗底 + 半透明白卡，无图标 */
.arch-cap {
  background: var(--color-dark);
  padding: var(--section-y) 0;
}

.arch-cap .sec-label,
.arch-cap .sec-label span {
  color: var(--color-white);
}

.arch-cap .sec-title {
  color: var(--color-white);
}

.arch-cap__head {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  width: 100%;
  max-width: 1008px;
  margin: 0 auto 78px;
}

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

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

.arch-cap-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  min-width: 0;
  width: auto;
  padding: 30px 20px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.11);
  text-align: left;
}

.arch-cap-card__copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  width: 100%;
}

.arch-cap-card h3 {
  width: 100%;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-white);
}

.arch-cap-card p {
  width: 100%;
  font-size: 16px;
  font-weight: 400;
  line-height: 24px;
  color: rgba(255, 255, 255, 0.6);
}

/* 自研优势：白底 2x2 + 54 图标 */
.arch-adv {
  background: var(--color-white);
  padding: var(--section-y) 0;
}

.arch-adv__head {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  width: 100%;
  max-width: 1008px;
  margin: 0 auto 78px;
}

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

.arch-adv__head .sec-title {
  line-height: 1.3;
}

.arch-adv__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 40px;
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
}

.arch-adv-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 16px;
  min-width: 0;
  width: auto;
  padding: 32px 40px;
  border-radius: 20px;
  background: var(--color-module);
}

.arch-adv-card__copy {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  width: 100%;
}

.arch-adv-card h3 {
  width: 100%;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
}

.arch-adv-card > p,
.arch-adv-card__copy > p {
  width: 100%;
  font-size: 16px;
  font-weight: 400;
  line-height: 24px;
  color: var(--color-sub);
}

.iot-icon--54 {
  width: 54px;
  height: 54px;
  flex-shrink: 0;
}

.arch-adv-card .iot-icon--54 img {
  width: 54px;
  height: 54px;
  object-fit: contain;
}

/* CTA：深底，与设计稿一致 */
.arch-cta {
  background: #121212;
}

.arch-cta .iot-cta__inner {
  width: 100%;
}

.arch-cta__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 40px;
}

.arch-cta__actions .btn--primary,
.arch-cta__actions .btn--ghost {
  padding: 0 32px;
}