.page-products {
  --prod-index-w: 236px;
  --prod-rule: 1px solid var(--line);
  background: var(--night);
  color: var(--star);
}

.page-products a:focus-visible {
  outline: 2px solid var(--observe);
  outline-offset: 2px;
}

/* ---------- 首屏 ---------- */
.page-products .prod-hero {
  padding-top: 20px;
  padding-bottom: 4px;
  background:
    radial-gradient(120% 90% at 92% -10%, rgba(59, 130, 246, 0.14), transparent 62%),
    var(--night);
}

.page-products .prod-hero-inner {
  padding: 26px 0 36px;
  max-width: 900px;
}

.page-products .prod-hero .display-title {
  margin: 14px 0 18px;
}

.page-products .prod-hero .lede {
  max-width: 720px;
  margin: 0;
}

.page-products .prod-stats {
  list-style: none;
  margin: 34px 0 28px;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: var(--prod-rule);
}

.page-products .prod-stats .stat {
  background: var(--night);
  padding: 16px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-products .prod-stats .stat-value {
  font-size: clamp(23px, 3vw, 33px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.05;
  color: var(--star);
}

.page-products .prod-stats .stat-label {
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--thin);
}

.page-products .prod-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

@media (min-width: 760px) {
  .page-products .prod-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 主布局 ---------- */
.page-products .prod-shell {
  width: 100%;
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 20px 96px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
}

@media (min-width: 1024px) {
  .page-products .prod-shell {
    grid-template-columns: var(--prod-index-w) minmax(0, 1fr);
    gap: 48px;
    padding-inline: 32px;
  }
}

/* ---------- 左侧功能目录 ---------- */
.page-products .prod-index {
  padding: 6px 0 0;
}

.page-products .prod-index-title {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--thin);
}

.page-products .prod-index-list {
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-products .prod-index-list > li {
  flex: none;
}

.page-products .prod-index-link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 12px;
  border: var(--prod-rule);
  color: var(--thin);
  font-size: 13.5px;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.page-products .prod-index-link .mono {
  font-size: 12px;
  color: var(--observe);
}

.page-products .prod-index-link:hover,
.page-products .prod-index-link:focus-visible {
  color: var(--star);
  background: var(--strata);
  border-color: var(--observe);
}

@media (min-width: 1024px) {
  .page-products .prod-index {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    align-self: start;
  }

  .page-products .prod-index-list {
    display: block;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-products .prod-index-link {
    border: 0;
    border-left: 2px solid transparent;
    padding: 7px 10px;
    white-space: normal;
  }
}

/* ---------- 功能段落 ---------- */
.page-products .pb-block {
  border-top: var(--prod-rule);
  padding: 40px 0 46px;
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-products .pb-block:last-of-type {
  border-bottom: var(--prod-rule);
}

.page-products .pb-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.page-products .pb-bar {
  display: block;
  flex: none;
  width: 34px;
  height: 3px;
  background: var(--observe);
}

.page-products .pb-block--red .pb-bar { background: var(--red); }
.page-products .pb-block--yellow .pb-bar { background: var(--yellow); }
.page-products .pb-block--green .pb-bar { background: var(--green); }

.page-products .pb-params {
  margin: 0;
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--thin);
  line-height: 1.5;
}

.page-products .pb-title {
  margin: 0 0 22px;
  font-size: clamp(22px, 3.2vw, 34px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.18;
}

.page-products .pb-num {
  display: block;
  margin-bottom: 8px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--observe);
}

.page-products .pb-block--red .pb-num { color: var(--red); }
.page-products .pb-block--yellow .pb-num { color: var(--yellow); }
.page-products .pb-block--green .pb-num { color: var(--green); }

.page-products .pb-text p {
  margin: 0 0 16px;
  max-width: 720px;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--star);
}

.page-products .pb-text p:last-child {
  margin-bottom: 0;
}

.page-products .pb-text a,
.page-products .pb-line-text a,
.page-products .dl-use a {
  color: var(--observe);
  text-decoration: none;
  border-bottom: 1px solid rgba(59, 130, 246, 0.5);
}

.page-products .pb-text a:hover,
.page-products .pb-line-text a:hover {
  border-bottom-color: var(--observe);
}

.page-products .pb-intro {
  margin: 0 0 20px;
  max-width: 720px;
  font-size: 15.5px;
  line-height: 1.75;
  color: var(--star);
}

/* ---------- 图文分栏 ---------- */
.page-products .pb-split {
  display: grid;
  gap: 28px;
}

@media (min-width: 900px) {
  .page-products .pb-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.88fr);
    gap: 40px;
    align-items: start;
  }
}

.page-products .pb-media {
  margin: 0;
  border: var(--prod-rule);
  background: var(--strata);
  overflow: hidden;
}

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

.page-products .pb-block--red .pb-media {
  margin-bottom: 26px;
}

.page-products .pb-block--yellow .pb-media {
  margin-bottom: 26px;
}

.page-products .pb-media--center {
  max-width: 520px;
  margin: 26px auto;
}

.page-products .pb-block--blue .pb-media.image-frame--wide {
  margin-top: 22px;
  margin-bottom: 26px;
  max-width: 760px;
}

/* ---------- 四条数据线 ---------- */
.page-products .pb-lines {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border-top: var(--prod-rule);
  border-bottom: var(--prod-rule);
}

.page-products .pb-line {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 18px 16px;
  background: var(--night);
  transition: background-color 0.18s ease;
}

.page-products .pb-line:hover {
  background: var(--strata);
}

.page-products .pb-line .status-dot {
  flex: none;
  margin-top: 7px;
}

.page-products .pb-line-title {
  margin: 0 0 6px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-products .pb-line-text {
  margin: 0;
  max-width: 660px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--thin);
}

/* ---------- 步骤清单 ---------- */
.page-products .pb-steps {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: var(--prod-rule);
}

.page-products .pb-steps li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 14px 16px;
  background: var(--strata);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--star);
}

.page-products .pb-steps .mono {
  font-size: 12.5px;
  color: var(--observe);
}

/* ---------- 提示条 ---------- */
.page-products .pb-note {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  margin-top: 20px;
  padding: 16px;
  background: var(--strata);
  border-left: 2px solid var(--red);
}

.page-products .pb-note--green {
  border-left-color: var(--green);
}

.page-products .pb-note .status-dot {
  margin-top: 6px;
}

.page-products .pb-note p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--star);
}

.page-products .pb-note p a {
  color: var(--observe);
  text-decoration: none;
  border-bottom: 1px solid rgba(59, 130, 246, 0.5);
}

/* ---------- 下载清单 ---------- */
.page-products .dl-list {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border-top: var(--prod-rule);
  border-bottom: var(--prod-rule);
}

.page-products .dl-item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 16px;
  padding: 20px 16px;
  background: var(--night);
  transition: background-color 0.18s ease;
}

.page-products .dl-item:hover {
  background: var(--strata);
}

.page-products .dl-icon-wrap {
  display: block;
  padding-top: 2px;
}

.page-products .dl-icon {
  display: block;
  width: 30px;
  height: 30px;
  color: var(--thin);
  transition: color 0.18s ease;
}

.page-products .dl-item--csv .dl-icon { color: var(--observe); }
.page-products .dl-item--pdf .dl-icon { color: var(--red); }
.page-products .dl-item--ics .dl-icon { color: var(--yellow); }
.page-products .dl-item--zip .dl-icon { color: var(--green); }

.page-products .dl-name {
  margin: 0 0 5px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--star);
}

.page-products .dl-spec {
  margin: 0 0 8px;
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--thin);
}

.page-products .dl-use {
  margin: 0;
  max-width: 640px;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--star);
}

/* ---------- 字段列表 ---------- */
.page-products .pb-facts {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border-top: var(--prod-rule);
  border-bottom: var(--prod-rule);
}

.page-products .pb-facts li {
  display: grid;
  grid-template-columns: 72px minmax(0, 1fr);
  gap: 16px;
  padding: 14px 16px;
  background: var(--night);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--star);
}

.page-products .pb-facts .mono {
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--thin);
}

/* ---------- 三步流程 ---------- */
.page-products .pb-flow {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: var(--prod-rule);
}

.page-products .pb-flow-step {
  padding: 24px 18px;
  background: var(--strata);
}

.page-products .pb-flow-num {
  display: block;
  margin-bottom: 12px;
  font-size: 30px;
  font-weight: 700;
  line-height: 1;
  color: var(--green);
}

.page-products .pb-flow-step h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--star);
}

.page-products .pb-flow-step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--thin);
}

@media (min-width: 840px) {
  .page-products .pb-flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 收尾动作 ---------- */
.page-products .pb-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  margin-top: 28px;
  padding: 24px 20px;
  background: var(--strata);
  border-left: 2px solid var(--observe);
}

.page-products .pb-cta-text {
  margin: 0;
  max-width: 520px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--star);
}

.page-products .pb-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 窄屏收口 ---------- */
@media (max-width: 560px) {
  .page-products .prod-shell {
    padding-inline: 16px;
    padding-bottom: 72px;
  }

  .page-products .pb-block {
    padding: 32px 0 38px;
  }

  .page-products .pb-facts li {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }

  .page-products .dl-item {
    grid-template-columns: 32px minmax(0, 1fr);
    gap: 12px;
  }

  .page-products .pb-cta {
    padding: 20px 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pb-line,
  .page-products .dl-item,
  .page-products .prod-index-link,
  .page-products .dl-icon {
    transition: none;
  }
}