.page-products {
  --pp-rail-w: 216px;
  --pp-gap: clamp(24px, 3.4vw, 52px);
  --pp-pad: clamp(18px, 3vw, 40px);
  background: var(--c-ink);
  color: var(--c-paper);
  font-family: var(--f-body);
  line-height: 1.75;
  overflow-wrap: break-word;
}

.page-products *,
.page-products *::before,
.page-products *::after {
  box-sizing: border-box;
}

.page-products :focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 3px;
}

.page-products .pp-mono {
  font-family: var(--f-mono);
  font-size: 0.92em;
  letter-spacing: 0.02em;
}

/* ---------- 首屏框景 ---------- */

.page-products .pp-hero {
  padding: calc(var(--header-h, 68px) + clamp(24px, 6vw, 76px)) var(--gutter) clamp(20px, 4vw, 44px);
}

.page-products .pp-hero-frame {
  position: relative;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(22px, 3.6vw, 48px);
  border: 1px solid var(--c-line);
  background:
    radial-gradient(120% 150% at 100% 0%, rgba(49, 225, 196, 0.09), transparent 62%),
    var(--c-board);
}

.page-products .pp-hero-frame::before,
.page-products .pp-hero-frame::after {
  content: "";
  position: absolute;
  width: 20px;
  height: 20px;
  pointer-events: none;
}

.page-products .pp-hero-frame::before {
  top: -1px;
  left: -1px;
  border-top: 2px solid var(--c-orange);
  border-left: 2px solid var(--c-orange);
}

.page-products .pp-hero-frame::after {
  right: -1px;
  bottom: -1px;
  border-right: 2px solid var(--c-cyan);
  border-bottom: 2px solid var(--c-cyan);
}

.page-products .pp-kicker {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 18px 0 16px;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

.page-products .pp-kicker::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: linear-gradient(90deg, var(--c-cyan), transparent);
  opacity: 0.45;
}

.page-products .pp-h1 {
  margin: 0;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: clamp(32px, 7.2vw, 76px);
  line-height: 1.06;
  letter-spacing: -0.01em;
  color: var(--c-paper);
  max-width: 20em;
}

.page-products .pp-lede {
  max-width: var(--measure);
  margin: clamp(16px, 2.4vw, 26px) 0 0;
  font-size: clamp(16px, 1.6vw, 18px);
  color: var(--c-mist);
  line-height: 1.8;
}

.page-products .pp-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(22px, 3.4vw, 40px) 0 0;
  padding: 0;
  list-style: none;
  background: var(--c-line);
  border: 1px solid var(--c-line);
}

.page-products .pp-metric {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 14px;
  background: var(--c-ink);
}

.page-products .pp-metric-num {
  font-family: var(--f-mono);
  font-size: clamp(22px, 3.2vw, 34px);
  line-height: 1;
  color: var(--c-cyan);
  letter-spacing: -0.01em;
}

.page-products .pp-metric-label {
  font-size: 13px;
  color: var(--c-mist);
  line-height: 1.55;
}

/* ---------- 主骨架 ---------- */

.page-products .pp-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pp-gap);
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter) clamp(48px, 8vw, 96px);
}

.page-products .pp-rail {
  padding-bottom: 14px;
  border-bottom: 1px solid var(--c-line);
}

.page-products .pp-rail-title {
  margin: 0 0 10px;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-mist);
}

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

.page-products .pp-rail-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--c-line);
  background: var(--c-board);
  color: var(--c-paper);
  font-size: 14px;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-products .pp-rail-item:hover {
  border-color: var(--c-cyan);
  color: var(--c-cyan);
}

.page-products .pp-rail-no {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--c-orange);
}

.page-products .pp-rail-note {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-dim);
}

.page-products .pp-stream {
  display: flex;
  flex-direction: column;
  gap: var(--pp-gap);
  min-width: 0;
}

/* ---------- 章节 ---------- */

.page-products .pp-sec {
  position: relative;
  padding: var(--pp-pad);
  border: 1px solid var(--c-line);
  background: var(--c-ink);
  scroll-margin-top: calc(var(--header-h, 68px) + 24px);
}

.page-products .pp-sec--board {
  background: var(--c-board);
}

.page-products .pp-sec--light {
  background: var(--c-paper);
  border-color: rgba(8, 33, 27, 0.16);
  color: var(--c-deep);
}

.page-products .pp-idx {
  margin: 0 0 12px;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

.page-products .pp-sec--light .pp-idx {
  color: var(--c-grid);
}

.page-products .pp-h2 {
  margin: 0;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: clamp(22px, 3.6vw, 38px);
  line-height: 1.16;
  letter-spacing: -0.01em;
  max-width: 22em;
}

.page-products .pp-lead {
  max-width: var(--measure);
  margin: 14px 0 0;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: var(--c-dim);
}

.page-products .pp-sec--light .pp-lead {
  color: rgba(8, 33, 27, 0.72);
}

.page-products .pp-sec-head {
  margin-bottom: clamp(20px, 3vw, 34px);
}

/* ---------- 通用网格与图片 ---------- */

.page-products .pp-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 2.6vw, 32px);
}

.page-products .pp-figure {
  margin: 0;
  border: 1px solid var(--c-line);
  background: var(--c-board);
  overflow: hidden;
}

.page-products .pp-sec--light .pp-figure {
  border-color: rgba(8, 33, 27, 0.16);
  background: #E4EDE9;
}

.page-products .pp-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 3 / 2;
}

.page-products .pp-figure--wide img {
  aspect-ratio: 16 / 9;
}

.page-products .pp-figure figcaption {
  padding: 10px 14px;
  border-top: 1px solid var(--c-line-soft);
  font-family: var(--f-mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--c-mist);
}

.page-products .pp-sec--light .pp-figure figcaption {
  border-top-color: rgba(8, 33, 27, 0.16);
  color: rgba(8, 33, 27, 0.62);
}

/* ---------- 三栏阵容 ---------- */

.page-products .pp-cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--c-line);
  border: 1px solid var(--c-line);
}

.page-products .pp-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px 16px;
  background: var(--c-board);
}

.page-products .pp-col--alert {
  background:
    linear-gradient(180deg, var(--c-orange-soft), transparent 72%),
    var(--c-board);
}

.page-products .pp-col-tag {
  margin: 0;
  font-family: var(--f-display);
  font-size: 18px;
  letter-spacing: 0.06em;
  color: var(--c-cyan);
}

.page-products .pp-col--alert .pp-col-tag {
  color: var(--c-orange);
}

.page-products .pp-col-body {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-mist);
}

.page-products .pp-col-foot {
  margin: auto 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--c-line-soft);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-dim);
}

/* ---------- 要点列表 ---------- */

.page-products .pp-points {
  display: grid;
  gap: 10px;
  margin: clamp(18px, 2.6vw, 28px) 0 0;
  padding: 0;
  list-style: none;
}

.page-products .pp-points li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-mist);
}

.page-products .pp-points li::before {
  content: "";
  position: absolute;
  top: 0.72em;
  left: 0;
  width: 10px;
  height: 1px;
  background: var(--c-cyan);
}

.page-products .pp-sec--light .pp-points li {
  color: rgba(8, 33, 27, 0.74);
}

.page-products .pp-sec--light .pp-points li::before {
  background: var(--c-grid);
}

/* ---------- 标签页 ---------- */

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

.page-products .pp-tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  border-bottom: 1px solid var(--c-line-soft);
}

.page-products .pp-sec--light .pp-tablist {
  border-bottom-color: rgba(8, 33, 27, 0.18);
}

.page-products .pp-tab {
  appearance: none;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  padding: 10px 16px;
  margin-bottom: -1px;
  font-family: var(--f-body);
  font-size: 15px;
  letter-spacing: 0.04em;
  color: inherit;
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .pp-tab:hover {
  color: var(--c-cyan);
}

.page-products .pp-tab[aria-selected="true"] {
  color: var(--c-cyan);
  border-bottom-color: var(--c-cyan);
}

.page-products .pp-sec--light .pp-tab:hover,
.page-products .pp-sec--light .pp-tab[aria-selected="true"] {
  color: var(--c-grid);
  border-bottom-color: var(--c-grid);
}

.page-products .pp-tabpanel {
  padding-top: 14px;
}

/* ---------- 数据行 ---------- */

.page-products .pp-rows {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .pp-row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px 16px;
  padding: 11px 0;
  border-bottom: 1px dashed var(--c-line-soft);
}

.page-products .pp-sec--light .pp-row {
  border-bottom-color: rgba(8, 33, 27, 0.16);
}

.page-products .pp-row:last-child {
  border-bottom: 0;
}

.page-products .pp-row-k {
  font-size: 14px;
  color: var(--c-mist);
}

.page-products .pp-sec--light .pp-row-k {
  color: rgba(8, 33, 27, 0.66);
}

.page-products .pp-row-v {
  font-family: var(--f-mono);
  font-size: 17px;
  color: var(--c-paper);
  letter-spacing: 0.01em;
}

.page-products .pp-sec--light .pp-row-v {
  color: var(--c-grid);
}

.page-products .pp-spark {
  display: block;
  width: 132px;
  height: 30px;
}

.page-products .pp-spark-line {
  stroke: var(--c-grid);
  stroke-width: 2;
  stroke-linejoin: round;
  stroke-linecap: round;
}

.page-products .pp-spark-base {
  stroke: rgba(8, 33, 27, 0.2);
  stroke-width: 1;
}

/* ---------- 时间轴 ---------- */

.page-products .pp-timeline {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--c-line);
}

.page-products .pp-tl-item {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding: 13px 0;
  border-bottom: 1px solid var(--c-line-soft);
}

.page-products .pp-tl-t {
  font-family: var(--f-mono);
  font-size: 15px;
  color: var(--c-orange);
}

.page-products .pp-tl-d {
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-mist);
}

/* ---------- 维度折叠 ---------- */

.page-products .pp-dims {
  margin: clamp(20px, 3vw, 30px) 0 0;
  border: 1px solid var(--c-line);
}

.page-products .pp-details {
  background: var(--c-board);
}

.page-products .pp-details + .pp-details {
  border-top: 1px solid var(--c-line);
}

.page-products .pp-details summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--c-paper);
  cursor: pointer;
  list-style: none;
}

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

.page-products .pp-details summary::after {
  content: "+";
  font-family: var(--f-mono);
  font-size: 16px;
  color: var(--c-cyan);
}

.page-products .pp-details[open] summary {
  color: var(--c-cyan);
}

.page-products .pp-details[open] summary::after {
  content: "−";
}

.page-products .pp-dim-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 6px 14px;
  margin: 0;
  padding: 0 16px 18px;
  list-style: none;
}

.page-products .pp-dim-list li {
  font-size: 13.5px;
  line-height: 1.9;
  color: var(--c-mist);
  border-bottom: 1px dashed rgba(28, 85, 72, 0.42);
}

/* ---------- 筛选区 ---------- */

.page-products .pp-filter {
  min-width: 0;
}

.page-products .pp-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.page-products .pp-chip {
  padding: 6px 12px;
  border: 1px solid var(--c-line);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--c-mist);
  background: var(--c-board);
}

.page-products .pp-chip--on {
  border-color: var(--c-orange);
  color: var(--c-orange);
}

.page-products .pp-chip--more {
  border-style: dashed;
  color: var(--c-dim);
}

.page-products .pp-filter-defs {
  margin: 0 0 22px;
  display: grid;
  gap: 12px;
}

.page-products .pp-filter-def {
  display: grid;
  gap: 4px;
  padding-left: 14px;
  border-left: 2px solid var(--c-grid);
}

.page-products .pp-filter-def dt {
  font-family: var(--f-display);
  font-size: 16px;
  letter-spacing: 0.06em;
  color: var(--c-cyan);
}

.page-products .pp-filter-def dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-mist);
}

/* ---------- 延伸入口 ---------- */

.page-products .pp-next {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--c-line);
  border: 1px solid var(--c-line);
}

.page-products .pp-next-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 18px 16px;
  background: var(--c-board);
  color: var(--c-paper);
  text-decoration: none;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-products .pp-next-item:hover {
  background: var(--c-grid);
}

.page-products .pp-next-t {
  font-family: var(--f-display);
  font-size: 18px;
  letter-spacing: 0.06em;
  color: var(--c-cyan);
}

.page-products .pp-next-d {
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-mist);
}

.page-products .pp-next-item:hover .pp-next-d {
  color: var(--c-paper);
}

/* ---------- 响应式 ---------- */

@media (min-width: 560px) {
  .page-products .pp-cols {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .pp-metrics {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

@media (min-width: 860px) {
  .page-products .pp-grid--split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: start;
  }

  .page-products .pp-grid--split-alt {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: start;
  }

  .page-products .pp-tl-item {
    grid-template-columns: 72px minmax(0, 1fr);
  }
}

@media (min-width: 1080px) {
  .page-products .pp-shell {
    grid-template-columns: var(--pp-rail-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-products .pp-rail {
    position: sticky;
    top: calc(var(--header-h, 68px) + 24px);
    padding-bottom: 0;
    border-bottom: 0;
  }

  .page-products .pp-rail-list {
    flex-direction: column;
    gap: 6px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-products .pp-rail-item {
    width: 100%;
    justify-content: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}