.page-products {
  --prod-line: var(--line-soft);
  --prod-cut: 2px 18px 2px 18px;
  color: var(--fog-200);
  background:
    radial-gradient(120% 55% at 82% -8%, rgba(43, 245, 200, .10), transparent 62%),
    radial-gradient(90% 50% at 8% 30%, rgba(36, 31, 77, .55), transparent 66%),
    var(--ink-950);
  padding-bottom: 72px;
}

.page-products .prod-shell {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 面包屑 */
.page-products .prod-crumbs {
  padding-top: 20px;
  font-size: 12px;
  letter-spacing: .12em;
}

/* 首屏框景 */
.page-products .prod-hero {
  display: grid;
  gap: 22px;
  margin-top: 18px;
}

.page-products .prod-hero__frame {
  position: relative;
  padding: 26px 20px 22px;
  border: 1px solid var(--prod-line);
  border-radius: var(--r-organic);
  background: linear-gradient(160deg, rgba(16, 48, 41, .85), rgba(10, 30, 25, .55) 70%);
  overflow: hidden;
}

.page-products .prod-hero__frame::before,
.page-products .prod-hero__frame::after {
  content: "";
  position: absolute;
  width: 22px;
  height: 22px;
  border: 1px solid var(--cyan-400);
  opacity: .7;
}

.page-products .prod-hero__frame::before {
  top: 10px;
  left: 10px;
  border-right: 0;
  border-bottom: 0;
}

.page-products .prod-hero__frame::after {
  right: 10px;
  bottom: 10px;
  border-left: 0;
  border-top: 0;
}

.page-products .prod-hero__eyebrow {
  margin: 0 0 12px;
  color: var(--cyan-400);
}

.page-products .prod-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.2rem, 8.4vw, 4.6rem);
  line-height: 1.02;
  letter-spacing: -.02em;
  color: var(--fog-200);
}

.page-products .prod-hero__lede {
  max-width: 62ch;
  margin: 16px 0 0;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(220, 232, 226, .86);
}

.page-products .prod-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-products .prod-hero__scale {
  height: 10px;
  margin-top: 24px;
  background-image: repeating-linear-gradient(90deg, rgba(43, 245, 200, .55) 0 1px, transparent 1px 14px);
  opacity: .55;
}

/* 首屏数据块 */
.page-products .prod-facts {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 0;
  background: var(--prod-line);
  border: 1px solid var(--prod-line);
  border-radius: var(--r-cut);
  overflow: hidden;
}

.page-products .prod-fact {
  padding: 16px 18px;
  background: rgba(10, 30, 25, .92);
}

.page-products .prod-fact dt {
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--sage-400);
}

.page-products .prod-fact dd {
  margin: 6px 0 4px;
  display: flex;
  align-items: baseline;
  gap: 6px;
  color: var(--cyan-400);
}

.page-products .prod-fact__num {
  font-size: clamp(1.7rem, 6vw, 2.2rem);
  line-height: 1;
  font-weight: 600;
}

.page-products .prod-fact__unit {
  font-size: 12px;
  color: var(--gold-500);
}

.page-products .prod-fact p {
  margin: 0;
  font-size: 12px;
  line-height: 1.6;
  color: var(--sage-400);
}

/* 分栏骨架 */
.page-products .prod-layout {
  display: grid;
  gap: 26px;
  margin-top: 40px;
}

.page-products .prod-index {
  padding: 16px 18px;
  border: 1px solid var(--prod-line);
  border-radius: var(--r-cut);
  background: rgba(8, 10, 9, .7);
}

.page-products .prod-index__title {
  margin: 0 0 12px;
  color: var(--gold-500);
}

.page-products .prod-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-auto-flow: column;
  grid-template-rows: repeat(3, auto);
  gap: 8px 14px;
  overflow-x: auto;
}

.page-products .prod-index__link {
  display: flex;
  gap: 8px;
  align-items: baseline;
  font-size: 13px;
  line-height: 1.4;
  color: rgba(220, 232, 226, .8);
  text-decoration: none;
  white-space: nowrap;
  border-bottom: 1px solid transparent;
  padding-bottom: 3px;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-products .prod-index__link .mono {
  color: var(--cyan-400);
  font-size: 11px;
}

.page-products .prod-index__link:hover,
.page-products .prod-index__link:focus-visible {
  color: var(--cyan-200);
  border-color: var(--cyan-400);
}

.page-products .prod-index__hint {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--prod-line);
  font-size: 12px;
  line-height: 1.7;
  color: var(--sage-400);
}

.page-products .prod-index__hint .mono {
  color: var(--gold-500);
}

/* 章节 */
.page-products .prod-stream {
  display: grid;
  gap: 52px;
}

.page-products .prod-sec {
  scroll-margin-top: 92px;
}

.page-products .prod-sec__head {
  position: relative;
  padding-left: 14px;
  border-left: 2px solid var(--gold-500);
}

.page-products .prod-sec__code {
  display: block;
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--gold-500);
}

.page-products .prod-sec__title {
  margin: 8px 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.5rem, 5.6vw, 2.1rem);
  line-height: 1.2;
  letter-spacing: -.01em;
}

.page-products .prod-sec__note {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(220, 232, 226, .78);
}

.page-products .prod-two,
.page-products .prod-split,
.page-products .prod-track {
  display: grid;
  gap: 22px;
  margin-top: 24px;
}

.page-products .prod-two__main p,
.page-products .prod-split__text p,
.page-products .prod-track__body p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(220, 232, 226, .84);
}

.page-products .prod-ticks {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-products .prod-ticks li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(220, 232, 226, .82);
}

.page-products .prod-ticks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 7px;
  height: 7px;
  border: 1px solid var(--cyan-400);
  border-radius: 50%;
}

.page-products .prod-two__side {
  padding: 18px;
  border: 1px solid var(--prod-line);
  border-radius: var(--r-cut);
  background: rgba(16, 48, 41, .6);
}

.page-products .prod-two__side .label {
  margin: 0 0 12px;
  color: var(--cyan-400);
}

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

.page-products .prod-cats li {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 8px 10px;
  font-size: 14px;
  border-radius: var(--r-cut);
  background: rgba(5, 17, 14, .55);
  border: 1px solid rgba(220, 232, 226, .06);
}

.page-products .prod-cats .mono {
  color: var(--gold-500);
  font-size: 11px;
}

.page-products .prod-aside-note {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--sage-400);
}

/* 图 */
.page-products .prod-figure {
  margin: 0;
  border: 1px solid var(--prod-line);
  border-radius: var(--r-organic);
  overflow: hidden;
  background: var(--ink-900);
}

.page-products .prod-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-products .prod-figure figcaption {
  padding: 10px 14px;
  font-size: 12px;
  line-height: 1.65;
  color: var(--sage-400);
  border-top: 1px solid var(--prod-line);
}

.page-products .prod-figure--wide {
  margin-top: 22px;
}

.page-products .prod-figure--square {
  border-radius: var(--r-cut);
}

.page-products .prod-figure--phone img {
  aspect-ratio: 3 / 4;
}

.page-products .prod-figure--dash img {
  aspect-ratio: 14 / 9;
}

/* 卡片示例 */
.page-products .prod-carddemo {
  margin-top: 22px;
  padding: 18px;
  border: 1px solid rgba(43, 245, 200, .32);
  border-radius: var(--r-cut);
  background: linear-gradient(150deg, rgba(16, 48, 41, .95), rgba(10, 30, 25, .8));
  box-shadow: inset 0 0 0 1px rgba(5, 17, 14, .6);
}

.page-products .prod-carddemo__top {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--prod-line);
}

.page-products .prod-carddemo__time {
  font-size: clamp(1.6rem, 7vw, 2.1rem);
  font-weight: 600;
  color: var(--cyan-400);
  line-height: 1;
}

.page-products .prod-carddemo__stage {
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--fog-200);
}

.page-products .prod-carddemo__mid {
  padding: 12px 0;
  font-size: 14px;
  color: rgba(220, 232, 226, .78);
}

.page-products .prod-carddemo__foot {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  padding-top: 10px;
  border-top: 1px solid var(--prod-line);
}

.page-products .prod-carddemo__state {
  padding: 3px 10px;
  font-size: 12px;
  color: var(--ink-950);
  background: var(--cyan-400);
  border-radius: var(--r-cut);
}

.page-products .prod-carddemo__tag {
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--gold-500);
  border: 1px solid rgba(242, 181, 68, .5);
  padding: 3px 10px;
  border-radius: var(--r-cut);
}

/* 字段折叠 */
.page-products .prod-fields {
  display: grid;
  gap: 8px;
  margin-top: 20px;
}

.page-products .prod-field {
  border: 1px solid var(--prod-line);
  border-radius: var(--r-cut);
  background: rgba(16, 48, 41, .45);
}

.page-products .prod-field summary {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 13px 16px;
  font-size: 14px;
  cursor: pointer;
  list-style: none;
  color: var(--fog-200);
}

.page-products .prod-field summary::-webkit-details-marker {
  display: none;
}

.page-products .prod-field summary::after {
  content: "+";
  margin-left: auto;
  color: var(--cyan-400);
  font-size: 15px;
}

.page-products .prod-field[open] summary::after {
  content: "–";
}

.page-products .prod-field[open] summary {
  color: var(--cyan-200);
}

.page-products .prod-field__no {
  font-size: 11px;
  color: var(--gold-500);
}

.page-products .prod-field p {
  margin: 0;
  padding: 0 16px 15px;
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(220, 232, 226, .78);
}

/* 步骤 */
.page-products .prod-steps {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  display: grid;
  gap: 12px;
  counter-reset: none;
}

.page-products .prod-steps li {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 10px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(220, 232, 226, .84);
}

.page-products .prod-steps .mono {
  color: var(--cyan-400);
  font-size: 12px;
  padding-top: 3px;
}

/* 重点场次区块 */
.page-products .prod-sec--track {
  padding: 24px 18px;
  border-radius: var(--r-organic);
  background: linear-gradient(165deg, rgba(74, 30, 46, .72), rgba(10, 30, 25, .82) 72%);
  border: 1px solid rgba(242, 181, 68, .18);
}

.page-products .prod-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.page-products .prod-chips .chip {
  font-size: 12px;
  border-color: rgba(220, 232, 226, .2);
  color: rgba(220, 232, 226, .8);
}

.page-products .prod-chips .chip[aria-pressed="true"] {
  color: var(--ink-950);
  background: var(--gold-500);
  border-color: var(--gold-500);
}

.page-products .prod-alert {
  margin-top: 14px;
  padding: 14px 16px;
  border: 1px solid rgba(43, 245, 200, .28);
  border-radius: var(--r-cut);
  background: rgba(5, 17, 14, .7);
}

.page-products .prod-alert .label {
  margin: 0 0 10px;
  color: var(--cyan-400);
}

.page-products .prod-alert__row {
  display: flex;
  gap: 10px;
  align-items: baseline;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(220, 232, 226, .82);
  padding: 6px 0;
  border-top: 1px solid var(--prod-line);
}

.page-products .prod-alert__row .mono {
  color: var(--gold-500);
  font-size: 12px;
  min-width: 46px;
}

/* 内容流 */
.page-products .prod-flows {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.page-products .prod-flow {
  padding: 16px 18px;
  border: 1px solid var(--prod-line);
  border-radius: var(--r-cut);
  background: rgba(16, 48, 41, .42);
}

.page-products .prod-flow .label {
  margin: 0 0 8px;
  color: var(--cyan-400);
}

.page-products .prod-flow h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--fog-200);
}

.page-products .prod-flow p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(220, 232, 226, .78);
}

.page-products .prod-inline-note {
  margin: 20px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--cyan-400);
  font-size: 13.5px;
  line-height: 1.8;
  color: rgba(220, 232, 226, .76);
}

/* 仪表盘 */
.page-products .prod-dash {
  margin-top: 22px;
  display: grid;
  gap: 20px;
}

.page-products .prod-dash__charts {
  padding: 18px;
  border: 1px solid var(--prod-line);
  border-radius: var(--r-organic);
  background: rgba(10, 30, 25, .78);
}

.page-products .prod-gauge-wrap {
  display: flex;
  gap: 16px;
  align-items: center;
}

.page-products .prod-gauge {
  width: 96px;
  height: 96px;
  flex: 0 0 auto;
}

.page-products .prod-gauge-wrap .label {
  margin: 0 0 6px;
  color: var(--cyan-400);
}

.page-products .prod-dash__lead {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(220, 232, 226, .76);
}

.page-products .prod-bars {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--prod-line);
}

.page-products .prod-bars .label {
  margin: 0 0 12px;
  color: var(--gold-500);
}

.page-products .prod-bar {
  display: grid;
  grid-template-columns: 46px 1fr 34px;
  gap: 10px;
  align-items: center;
  margin-bottom: 10px;
}

.page-products .prod-bar__name {
  font-size: 12px;
  color: var(--sage-400);
}

.page-products .prod-bar__track {
  display: block;
  height: 8px;
  border-radius: 99px;
  background: rgba(220, 232, 226, .12);
  overflow: hidden;
}

.page-products .prod-bar__fill {
  display: block;
  height: 100%;
  border-radius: 99px;
}

.page-products .prod-bar__fill--cyan {
  background: linear-gradient(90deg, rgba(43, 245, 200, .55), var(--cyan-400));
}

.page-products .prod-bar__fill--gold {
  background: linear-gradient(90deg, rgba(242, 181, 68, .45), var(--gold-500));
}

.page-products .prod-bar__val {
  font-size: 12px;
  color: var(--fog-200);
  text-align: right;
}

.page-products .prod-progress {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--prod-line);
}

.page-products .prod-progress .label {
  margin: 0 0 10px;
  color: var(--fog-200);
}

.page-products .prod-progress__track {
  height: 6px;
  border-radius: 99px;
  background: rgba(220, 232, 226, .12);
  overflow: hidden;
}

.page-products .prod-progress__track span {
  display: block;
  height: 100%;
  background: var(--cyan-400);
}

.page-products .prod-progress__legend {
  margin: 10px 0 0;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--sage-400);
}

.page-products .prod-progress__legend .mono {
  color: var(--gold-500);
}

/* 版本刻度 */
.page-products .prod-version {
  list-style: none;
  margin: 26px 0 0;
  padding: 0 0 0 18px;
  display: grid;
  gap: 14px;
  border-left: 1px solid rgba(242, 181, 68, .35);
}

.page-products .prod-version__node {
  position: relative;
  padding: 6px 0 6px 12px;
}

.page-products .prod-version__node::before {
  content: "";
  position: absolute;
  left: -24px;
  top: 12px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid var(--gold-500);
  background: var(--ink-950);
}

.page-products .prod-version__node .mono {
  font-size: 13px;
  color: var(--gold-500);
}

.page-products .prod-version__node p {
  margin: 4px 0 0;
  font-size: 13px;
  line-height: 1.65;
  color: rgba(220, 232, 226, .76);
}

.page-products .prod-version__node--now::before {
  border-color: var(--cyan-400);
  background: var(--cyan-400);
  box-shadow: 0 0 0 5px rgba(43, 245, 200, .16);
}

.page-products .prod-version__node--now .mono {
  color: var(--cyan-400);
}

/* 人群 */
.page-products .prod-who {
  display: grid;
  gap: 12px;
  margin-top: 28px;
}

.page-products .prod-who__card {
  padding: 18px;
  border: 1px solid var(--prod-line);
  border-radius: var(--r-cut);
  background: linear-gradient(160deg, rgba(36, 31, 77, .6), rgba(10, 30, 25, .7));
}

.page-products .prod-who__card .label {
  margin: 0 0 8px;
  color: var(--cyan-400);
}

.page-products .prod-who__card h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  color: var(--fog-200);
}

.page-products .prod-who__card p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: rgba(220, 232, 226, .78);
}

/* 收尾 */
.page-products .prod-cta {
  margin-top: 56px;
  padding: 26px 20px;
  border: 1px solid rgba(43, 245, 200, .26);
  border-radius: var(--r-organic);
  background: linear-gradient(150deg, rgba(16, 48, 41, .9), rgba(5, 17, 14, .95));
}

.page-products .prod-cta .label {
  margin: 0 0 10px;
  color: var(--gold-500);
}

.page-products .prod-cta h2 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.35rem, 5vw, 1.9rem);
  line-height: 1.25;
  color: var(--fog-200);
}

.page-products .prod-cta p {
  margin: 0;
  max-width: 60ch;
  font-size: 14px;
  line-height: 1.78;
  color: rgba(220, 232, 226, .8);
}

.page-products .prod-cta__row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.page-products .link-more {
  color: var(--cyan-400);
}

.page-products a.link-more:hover,
.page-products a.link-more:focus-visible {
  color: var(--cyan-200);
}

/* 平板 */
@media (min-width: 720px) {
  .page-products .prod-shell {
    padding: 0 32px;
  }

  .page-products .prod-hero {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }

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

  .page-products .prod-two {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 26px;
    align-items: start;
  }

  .page-products .prod-track {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 26px;
    align-items: start;
  }

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

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

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

  .page-products .prod-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.72fr);
    gap: 28px;
    align-items: start;
  }

  .page-products .prod-index__list {
    grid-auto-flow: row;
    grid-template-rows: none;
    grid-template-columns: 1fr 1fr;
  }

  .page-products .prod-version {
    grid-auto-flow: column;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    border-left: 0;
    border-top: 1px solid rgba(242, 181, 68, .35);
    padding: 18px 0 0;
    gap: 10px;
  }

  .page-products .prod-version__node {
    padding: 0 8px;
  }

  .page-products .prod-version__node::before {
    left: 8px;
    top: -24px;
  }

  .page-products .prod-sec--track {
    padding: 30px 26px;
  }
}

/* 桌面：黏性索引 + 读卡器分栏 */
@media (min-width: 1024px) {
  .page-products .prod-shell {
    padding: 0 40px;
  }

  .page-products .prod-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 26px;
    align-items: stretch;
    margin-top: 24px;
  }

  .page-products .prod-hero__frame {
    padding: 38px 34px 30px;
  }

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

  .page-products .prod-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: 52px;
    margin-top: 56px;
  }

  .page-products .prod-index {
    position: sticky;
    top: 96px;
    padding: 20px;
  }

  .page-products .prod-index__list {
    grid-template-columns: 1fr;
    overflow: visible;
  }

  .page-products .prod-stream {
    gap: 68px;
  }

  .page-products .prod-dash {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
    gap: 24px;
    align-items: start;
  }

  .page-products .prod-figure--wide img {
    max-height: 420px;
  }

  .page-products .prod-cta {
    padding: 40px 36px;
    margin-top: 72px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .prod-index__link,
  .page-products .prod-index__link:hover {
    transition: none;
  }
}
<<<END>>>