.page-products {
  --pf-lead: clamp(4px, 1.4vw, 14px);
  --pf-block-gap: clamp(32px, 5vw, 64px);
  background: var(--c-void);
  color: var(--c-ink);
}

/* ---------- 面包屑 ---------- */
.page-products .breadcrumbs {
  padding-top: clamp(18px, 3vw, 30px);
  padding-bottom: 6px;
}

/* ---------- 首屏 ---------- */
.page-products .products-hero {
  padding-top: clamp(12px, 2vw, 22px);
}

.page-products .products-hero__head {
  display: block;
}

.page-products .products-hero .chapter__index {
  display: block;
  font-family: var(--font-mono);
  font-weight: 200;
  font-size: clamp(64px, 14vw, 150px);
  line-height: .82;
  letter-spacing: -.04em;
  color: var(--c-line);
  margin-bottom: .06em;
}

.page-products .products-hero__title {
  font-size: clamp(28px, 6.4vw, 54px);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -.015em;
  margin: 0 0 .52em;
  max-width: 22ch;
}

.page-products .products-hero__kicker {
  font-size: 13px;
  letter-spacing: .12em;
  color: var(--c-muted);
}

.page-products .products-hero .chapter__lead {
  max-width: 62ch;
  color: var(--c-ink);
  opacity: .86;
}

.page-products .products-hero__media {
  margin: clamp(26px, 4vw, 46px) 0 0;
}

.page-products .media {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--c-line);
  background: var(--c-panel);
}

.page-products .media--pano { aspect-ratio: 16 / 9; }
.page-products .media--wide { aspect-ratio: 3 / 2; }
.page-products .media--tall { aspect-ratio: 3 / 4; }

.page-products .media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-products .media__cap {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--c-muted);
}

/* ---------- 回看对照表 ---------- */
.page-products .products-tier-wrap {
  margin-top: clamp(30px, 4.5vw, 56px);
}

.page-products .tier-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  text-align: left;
}

.page-products .tier-table__cap {
  caption-side: top;
  text-align: left;
  padding-bottom: 14px;
  font-size: 14px;
  letter-spacing: .04em;
  color: var(--c-muted);
}

.page-products .tier-table thead th {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--c-muted);
  padding: 12px 16px;
  border-bottom: 1px solid var(--c-line);
  white-space: nowrap;
}

.page-products .tier-table tbody th,
.page-products .tier-table tbody td {
  padding: 18px 16px;
  border-bottom: 1px solid var(--c-line);
  font-size: 15px;
  line-height: 1.6;
  color: var(--c-ink);
  vertical-align: top;
}

.page-products .tier-table tbody tr {
  background: var(--c-panel);
  transition: background-color 160ms var(--ease);
}

.page-products .tier-table tbody tr:hover {
  background: var(--c-moss);
}

.page-products .tier-name {
  font-weight: 900;
  font-size: 17px !important;
  letter-spacing: .01em;
  white-space: nowrap;
}

.page-products .tier-price {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(22px, 3.6vw, 34px) !important;
  line-height: 1.1;
  color: var(--c-neon);
  white-space: nowrap;
  letter-spacing: -.01em;
}

.page-products .tier-note {
  margin: 18px 0 0;
  max-width: 74ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-muted);
}

/* ---------- 费用流程 ---------- */
.page-products .flow {
  position: relative;
  margin-top: clamp(24px, 3.6vw, 42px);
}

.page-products .flow__trace {
  display: block;
  width: 100%;
  height: clamp(34px, 5vw, 56px);
  margin-bottom: clamp(-14px, -1vw, -6px);
}

.page-products .flow__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(16px, 2.4vw, 26px);
  grid-template-columns: 1fr;
}

.page-products .flow__node {
  position: relative;
  padding: 20px 20px 22px;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%);
  transition: border-color 160ms var(--ease), transform 160ms var(--ease);
}

.page-products .flow__node:hover {
  border-color: var(--c-neon);
  transform: translateY(-2px);
}

.page-products .flow__idx {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--c-cyan);
  margin-bottom: 8px;
}

.page-products .flow__title {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: .01em;
}

.page-products .flow__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-muted);
}

.page-products .flow__levels {
  display: grid;
  gap: clamp(14px, 2vw, 22px);
  grid-template-columns: 1fr;
  margin-top: clamp(26px, 3.4vw, 40px);
}

.page-products .flow__level {
  padding: 22px 20px 24px;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-orange);
  transition: background-color 160ms var(--ease), border-left-color 160ms var(--ease);
}

.page-products .flow__level:hover {
  background: var(--c-lift);
}

.page-products .flow__level--hot {
  border-left-color: var(--c-neon);
}

.page-products .flow__level-tag {
  display: block;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--c-muted);
  margin-bottom: 10px;
}

.page-products .flow__level-price {
  display: block;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(38px, 7vw, 58px);
  line-height: 1;
  color: var(--c-orange);
  letter-spacing: -.02em;
}

.page-products .flow__level--hot .flow__level-price {
  color: var(--c-neon);
}

.page-products .flow__level-unit {
  font-size: .42em;
  margin-left: 4px;
  letter-spacing: .02em;
}

.page-products .flow__level-text {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-muted);
}

.page-products .products-cost__media {
  margin: clamp(34px, 4.6vw, 56px) 0 0;
}

/* ---------- 客户端结构 ---------- */
.page-products .struct-block {
  margin-top: clamp(24px, 3.6vw, 42px);
  align-items: start;
}

.page-products .struct {
  display: grid;
  gap: clamp(14px, 1.8vw, 20px);
  grid-template-columns: 1fr;
}

.page-products .struct__col {
  padding: 20px 18px 22px;
  border: 1px solid var(--c-line);
  background: var(--c-panel);
}

.page-products .struct__col--old {
  opacity: .66;
}

.page-products .struct__col--new {
  background: var(--c-moss);
  border-color: var(--c-neon);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%);
}

.page-products .struct__label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--c-muted);
}

.page-products .struct__layers {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-products .struct__layer {
  padding: 12px 14px;
  font-size: 15px;
  border: 1px solid var(--c-line);
  background: var(--c-deep);
}

.page-products .struct__layer--agg {
  border-color: var(--c-neon);
  color: var(--c-neon);
  font-weight: 700;
}

.page-products .struct__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-muted);
}

.page-products .struct-stats {
  margin-top: clamp(20px, 3vw, 30px);
}

.page-products .struct-block__media {
  margin: clamp(26px, 3.6vw, 0px) 0 0;
}

/* ---------- 数据同步 ---------- */
.page-products .sync-block {
  margin-top: clamp(24px, 3.6vw, 42px);
  align-items: start;
}

.page-products .sync-block__media {
  margin: 0 0 clamp(24px, 3.4vw, 0px);
}

.page-products .sync-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-products .sync-item {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "num body"
    "unit body";
  column-gap: 18px;
  align-items: start;
  padding: 20px 18px;
  background: var(--c-panel);
  border-left: 2px solid var(--c-line);
  transition: border-left-color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-products .sync-item:hover {
  border-left-color: var(--c-cyan);
  background: var(--c-lift);
}

.page-products .sync-item__num {
  grid-area: num;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: clamp(30px, 5vw, 44px);
  line-height: .95;
  color: var(--c-ink);
  letter-spacing: -.02em;
}

.page-products .sync-item__unit {
  grid-area: unit;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--c-muted);
  margin-top: 4px;
}

.page-products .sync-item__body {
  grid-area: body;
}

.page-products .sync-item__title {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: .01em;
}

.page-products .sync-item__body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--c-muted);
}

.page-products .sync-note {
  margin: clamp(22px, 3vw, 30px) 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-ink);
  opacity: .84;
  padding-left: 16px;
  border-left: 2px solid var(--c-cyan);
}

/* ---------- 安装与适配 ---------- */
.page-products .products-install__media {
  margin: clamp(24px, 3.6vw, 40px) 0 0;
}

.page-products .device-scroller {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(230px, 78%);
  gap: 14px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: clamp(24px, 3.6vw, 38px) 2px 12px;
  margin: 0;
  -webkit-overflow-scrolling: touch;
}

.page-products .device-card {
  scroll-snap-align: start;
  padding: 22px 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-products .device-card__title {
  margin: 0;
  font-size: 19px;
  font-weight: 900;
  letter-spacing: .01em;
}

.page-products .device-card__req {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .04em;
  color: var(--c-neon);
}

.page-products .device-card--muted .device-card__req {
  color: var(--c-muted);
}

.page-products .device-card__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--c-muted);
}

.page-products .device-hint {
  margin: 10px 0 0;
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--c-muted);
}

/* ---------- 四步路径 ---------- */
.page-products .path-list {
  list-style: none;
  margin: clamp(24px, 3.6vw, 40px) 0 0;
  padding: 0;
  display: grid;
  gap: 2px;
  counter-reset: pfpath;
}

.page-products .path-step {
  position: relative;
  padding: 22px 18px 24px 70px;
  background: var(--c-panel);
  border-top: 1px solid var(--c-line);
  transition: background-color 160ms var(--ease);
}

.page-products .path-step:hover {
  background: var(--c-lift);
}

.page-products .path-step__num {
  position: absolute;
  left: 18px;
  top: 20px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 20px;
  letter-spacing: .02em;
  color: var(--c-cyan);
}

.page-products .path-step__title {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 800;
}

.page-products .path-step__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--c-muted);
}

.page-products .path-cta {
  margin-top: clamp(28px, 4vw, 44px);
  padding: clamp(22px, 3.2vw, 34px);
  background: var(--c-moss);
  border: 1px solid var(--c-line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%);
}

.page-products .path-cta__text {
  margin: 0 0 18px;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-ink);
}

.page-products .path-cta__links {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-products .flow__steps {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-products .flow__levels {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-products .struct {
    grid-template-columns: 1fr 1fr;
  }

  .page-products .device-scroller {
    grid-auto-columns: minmax(250px, 1fr);
    grid-auto-flow: row;
    grid-template-columns: repeat(2, 1fr);
    overflow-x: visible;
    scroll-snap-type: none;
    padding-left: 0;
    padding-right: 0;
  }

  .page-products .path-list {
    grid-template-columns: repeat(2, 1fr);
    gap: 2px 2px;
  }

  .page-products .sync-block__media {
    margin-bottom: 0;
  }
}

@media (min-width: 1040px) {
  .page-products .products-hero {
    padding-top: clamp(20px, 3vw, 34px);
  }

  .page-products .device-scroller {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-products .path-list {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-products .path-step {
    padding: 26px 20px 30px;
  }

  .page-products .path-step__num {
    position: static;
    display: block;
    margin-bottom: 12px;
    font-size: 22px;
  }

  .page-products .sync-item {
    padding: 24px 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .flow__node,
  .page-products .flow__level,
  .page-products .sync-item,
  .page-products .path-step,
  .page-products .tier-table tbody tr {
    transition: none;
  }

  .page-products .flow__node:hover {
    transform: none;
  }
}