.page-products {
  --pp-axis: 20px;
  display: block;
  padding-bottom: 96px;
}

/* ---------- 首屏 ---------- */
.page-products .products-hero {
  position: relative;
  display: grid;
  gap: 30px;
  padding: 26px 0 52px;
}

.page-products .products-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 18%;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--lime), var(--violet) 55%, transparent);
}

.page-products .products-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 7.4vw, 56px);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-products .products-hero__lead {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-soft);
}

.page-products .products-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-products .products-hero__panel {
  position: relative;
  overflow: hidden;
  padding: 22px 20px 22px 24px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(124, 58, 237, 0.22), transparent 62%),
    linear-gradient(158deg, var(--panel), var(--void) 72%);
}

.page-products .products-hero__panel::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, var(--lime), var(--violet));
}

.page-products .products-hero__panel-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

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

.page-products .panel-list li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 13px 0;
  border-bottom: 1px dashed var(--line);
}

.page-products .panel-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-products .panel-list__num {
  flex: 0 0 auto;
  min-width: 64px;
  font-size: 28px;
  font-weight: 800;
  line-height: 1;
  color: var(--lime);
}

.page-products .panel-list__txt {
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-soft);
}

/* ---------- 产品线总览 ---------- */
.page-products .products-tier .region-filter {
  margin-top: 24px;
}

.page-products .tier-grid {
  display: grid;
  gap: 16px;
  margin-top: 22px;
}

.page-products .tier-card {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px 20px 20px 24px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--panel);
  transition: transform 0.25s var(--ease-out), border-color 0.25s var(--ease-out);
}

.page-products .tier-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: var(--line);
  transition: background 0.25s var(--ease-out);
}

.page-products .tier-card:hover,
.page-products .tier-card:focus-within {
  transform: translateY(-2px);
  border-color: rgba(180, 255, 57, 0.55);
}

.page-products .tier-card:hover::before,
.page-products .tier-card:focus-within::before {
  background: var(--lime);
}

.page-products .tier-card--featured {
  border-color: rgba(180, 255, 57, 0.45);
  background:
    radial-gradient(130% 100% at 0% 0%, rgba(180, 255, 57, 0.1), transparent 60%),
    var(--panel);
}

.page-products .tier-card--featured::before {
  background: linear-gradient(180deg, var(--lime), var(--violet));
}

.page-products .tier-card.is-out {
  display: none;
}

.page-products .tier-card__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  justify-content: space-between;
}

.page-products .tier-card__name {
  margin: 0;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 800;
  color: var(--text);
}

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

.page-products .tier-card__list {
  list-style: none;
  margin: 2px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-products .tier-card__list li {
  display: grid;
  grid-template-columns: 7px minmax(0, 1fr);
  gap: 10px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text-soft);
}

.page-products .tier-card__list li::before {
  content: "";
  width: 6px;
  height: 6px;
  margin-top: 9px;
  border-radius: 50%;
  background: var(--lime);
}

.page-products .tier-card .cost {
  margin-top: auto;
}

.page-products .products-tier__figure,
.page-products .products-pricing__figure,
.page-products .products-devices__figure,
.page-products .products-path__figure,
.page-products .products-structure__figure {
  margin: 30px 0 0;
}

.page-products .products-tier__figure img,
.page-products .products-pricing__figure img,
.page-products .products-devices__figure img,
.page-products .products-path__figure img,
.page-products .products-structure__figure img {
  width: 100%;
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--r-lg);
  border: 1px solid var(--line);
  object-fit: cover;
}

/* ---------- 栏目结构 ---------- */
.page-products .structure-layout {
  display: grid;
  gap: 28px;
  margin-top: 26px;
}

.page-products .field-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .field-list li {
  display: grid;
  grid-template-columns: 66px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--panel);
  transition: border-color 0.2s var(--ease-out);
}

.page-products .field-list li:hover {
  border-color: rgba(76, 201, 240, 0.5);
}

.page-products .field-list__code {
  padding-top: 4px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.09em;
  color: var(--ice);
}

.page-products .field-list__name {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}

.page-products .field-list__desc {
  margin: 4px 0 0;
  font-size: 13.5px;
  line-height: 1.68;
  color: var(--muted);
}

.page-products .structure-note {
  margin-top: 18px;
  padding: 20px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--violet);
  border-radius: var(--r-md);
  background: linear-gradient(150deg, rgba(124, 58, 237, 0.14), transparent 70%), var(--panel);
}

.page-products .structure-note__title {
  margin: 0;
  font-size: 17px;
  font-weight: 800;
  color: var(--text);
}

.page-products .structure-note__text {
  margin: 8px 0 14px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-soft);
}

/* ---------- 价格与额度周期 ---------- */
.page-products .pricing-grid {
  display: grid;
  gap: 16px;
  margin-top: 26px;
}

.page-products .price-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 22px 20px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--panel);
}

.page-products .price-card--featured {
  border-color: rgba(180, 255, 57, 0.45);
  background:
    radial-gradient(120% 90% at 50% 0%, rgba(180, 255, 57, 0.08), transparent 62%),
    var(--panel);
}

.page-products .price-card__head {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-products .price-card__name {
  margin: 0;
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 800;
  color: var(--text);
}

.page-products .price-card__for {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.07em;
  color: var(--violet-text);
}

.page-products .spec-list {
  margin: 0;
  display: grid;
  gap: 0;
}

.page-products .spec-list__row {
  display: grid;
  grid-template-columns: 82px minmax(0, 1fr);
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--line);
}

.page-products .spec-list__row:last-child {
  border-bottom: 0;
}

.page-products .spec-list__row dt {
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-products .spec-list__row dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-soft);
}

.page-products .price-card .cost {
  margin-top: auto;
}

.page-products .products-pricing__note {
  margin: 26px 0 0;
  padding: 16px 18px;
  border: 1px dashed var(--line);
  border-radius: var(--r-md);
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-soft);
}

.page-products .inline-link {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(180, 255, 57, 0.45);
}

.page-products .inline-link:hover,
.page-products .inline-link:focus-visible {
  color: var(--violet-text);
  border-bottom-color: var(--violet-text);
}

/* ---------- 移动端与桌面端 ---------- */
.page-products .device-grid {
  display: grid;
  gap: 16px;
  margin-top: 26px;
}

.page-products .device-card {
  padding: 22px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--panel);
}

.page-products .device-card--mobile {
  border-top: 3px solid var(--lime);
}

.page-products .device-card--desktop {
  border-top: 3px solid var(--violet);
}

.page-products .device-card__badge {
  display: inline-block;
  padding: 4px 11px;
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--void);
  background: var(--lime);
}

.page-products .device-card__badge--violet {
  color: var(--text);
  background: var(--violet);
}

.page-products .device-card__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  line-height: 1.35;
  color: var(--text);
}

.page-products .device-card__text {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text-soft);
}

.page-products .device-card__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .device-card__list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted);
}

.page-products .device-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 2px;
  background: var(--ice);
}

/* ---------- 四步路径 ---------- */
.page-products .path-tree {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  position: relative;
  display: grid;
  gap: 30px;
}

.page-products .path-tree::before {
  content: "";
  position: absolute;
  left: 19px;
  top: 14px;
  bottom: 14px;
  width: 2px;
  background: linear-gradient(180deg, var(--lime), var(--violet) 52%, var(--ice));
  opacity: 0.55;
}

.page-products .path-node {
  position: relative;
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.page-products .path-node__marker {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid var(--lime);
  background: var(--void);
  font-size: 12.5px;
  font-weight: 700;
  color: var(--lime);
}

.page-products .path-node__title {
  margin: 6px 0 0;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  color: var(--text);
}

.page-products .path-node__text {
  margin: 9px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text-soft);
}

.page-products .path-node__card {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(16, 26, 38, 0.72);
}

.page-products .path-node__card--cost {
  display: grid;
  gap: 12px;
}

.page-products .path-node__chip {
  display: inline-block;
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--ice);
  background: rgba(76, 201, 240, 0.08);
}

/* ---------- 版本迭代记录 ---------- */
.page-products .version-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-products .version-item {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr);
  gap: 16px;
  padding: 18px 0 18px 16px;
  border-left: 2px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: border-left-color 0.2s var(--ease-out);
}

.page-products .version-item:first-child {
  border-top: 1px solid var(--line);
}

.page-products .version-item:hover {
  border-left-color: var(--lime);
}

.page-products .version-item__no {
  font-size: 20px;
  font-weight: 800;
  color: var(--orange);
}

.page-products .version-item__title {
  margin: 2px 0 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
}

.page-products .version-item__text {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

.page-products .products-versions__foot {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-products .products-hero {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
    gap: 34px;
    padding: 34px 0 60px;
  }

  .page-products .tier-grid,
  .page-products .pricing-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .device-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .structure-layout {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }

  .page-products .structure-fields {
    display: grid;
    gap: 18px;
  }

  .page-products .field-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
  }

  .page-products .field-list li {
    grid-template-columns: 58px minmax(0, 1fr);
  }

  .page-products .path-tree {
    gap: 34px;
  }

  .page-products .path-node {
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 22px;
  }

  .page-products .path-node__marker {
    width: 48px;
    height: 48px;
    font-size: 13.5px;
  }

  .page-products .path-tree::before {
    left: 23px;
  }

  .page-products .version-item {
    grid-template-columns: 88px minmax(0, 1fr);
    padding-left: 20px;
  }
}

@media (min-width: 1020px) {
  .page-products .products-hero__title {
    max-width: 16ch;
  }

  .page-products .tier-card,
  .page-products .price-card {
    padding: 28px 26px 24px;
  }

  .page-products .field-list {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-products .path-node__card {
    padding: 16px 18px;
  }

  .page-products .products-path__figure {
    margin-top: 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .tier-card,
  .page-products .field-list li,
  .page-products .version-item {
    transition: none;
  }

  .page-products .tier-card:hover,
  .page-products .tier-card:focus-within {
    transform: none;
  }
}