.page-products {
  --pp-rule: rgba(237, 241, 247, .10);
  --pp-rule-strong: rgba(237, 241, 247, .20);
  --pp-dim: var(--nfs-mist);
  --pp-panel: #131C30;
  --pp-gap: 24px;
  --pp-pad-y: 52px;
  background: var(--nfs-indigo);
  color: var(--nfs-white);
  font-family: var(--font-body);
}

.page-products img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-products .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

/* ---------- 首屏 ---------- */

.page-products .pp-hero {
  position: relative;
  padding: 28px 0 44px;
  background:
    radial-gradient(120% 80% at 88% 0%, rgba(53, 224, 200, .08), transparent 58%),
    radial-gradient(90% 60% at 4% 100%, rgba(240, 162, 44, .07), transparent 60%),
    var(--nfs-indigo);
  overflow: hidden;
}

.page-products .pp-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(53, 224, 200, .055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(53, 224, 200, .055) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
}

.page-products .pp-hero-shell {
  position: relative;
  z-index: 1;
}

.page-products .pp-hero-grid {
  display: grid;
  gap: 32px;
  margin-top: 22px;
}

.page-products .pp-h1 {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(30px, 8.4vw, 62px);
  line-height: 1.06;
  letter-spacing: .05em;
  max-width: 16em;
}

.page-products .pp-lede {
  margin: 18px 0 0;
  max-width: 62ch;
  color: var(--nfs-white);
  font-size: 16px;
  line-height: 1.78;
  opacity: .9;
}

.page-products .pp-dims {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  border-top: 1px solid var(--pp-rule);
}

.page-products .pp-dims li {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 4px 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--pp-rule);
}

.page-products .pp-dim-idx {
  grid-row: span 2;
  color: var(--nfs-amber);
  font-size: 13px;
  letter-spacing: .1em;
  padding-top: 3px;
}

.page-products .pp-dim-name {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: .06em;
}

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

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

.page-products .pp-panel-fig {
  margin: 0;
  border: 1px solid var(--pp-rule-strong);
  background: #0B1220;
  position: relative;
}

.page-products .pp-panel-fig::before,
.page-products .pp-panel-fig::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: 1px solid var(--nfs-amber);
  pointer-events: none;
}

.page-products .pp-panel-fig::before {
  top: -1px;
  left: -1px;
  border-right: 0;
  border-bottom: 0;
}

.page-products .pp-panel-fig::after {
  right: -1px;
  bottom: -1px;
  border-left: 0;
  border-top: 0;
}

.page-products .pp-panel-svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-products .pp-hero-visual {
  position: relative;
  z-index: 1;
  margin-top: 36px;
}

/* ---------- 区块骨架 ---------- */

.page-products .pp-section {
  padding: var(--pp-pad-y) 0;
}

.page-products .pp-band {
  background: var(--nfs-charcoal);
}

.page-products .pp-section .section-head {
  max-width: 68ch;
}

.page-products .pp-block-label {
  margin: 26px 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--nfs-amber);
  text-transform: uppercase;
}

.page-products .pp-block-label:first-child {
  margin-top: 0;
}

.page-products .pp-block-label--rail {
  margin-top: 40px;
}

/* ---------- 双线交叉 ---------- */

.page-products .pp-dual {
  display: grid;
  gap: 0;
  margin-top: 34px;
  border-top: 1px solid var(--pp-rule-strong);
}

.page-products .pp-line {
  padding: 24px 0 26px;
  border-bottom: 1px solid var(--pp-rule);
}

.page-products .pp-line-tag {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--pp-dim);
}

.page-products .pp-line--coach .pp-line-tag {
  color: var(--nfs-cyan);
}

.page-products .pp-line--report .pp-line-tag {
  color: var(--nfs-amber);
}

.page-products .pp-line h3 {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 22px;
  letter-spacing: .05em;
}

.page-products .pp-line p {
  margin: 0;
  color: var(--nfs-white);
  font-size: 15.5px;
  line-height: 1.78;
  opacity: .88;
}

.page-products .pp-line-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
}

.page-products .pp-line-list li {
  position: relative;
  padding: 7px 0 7px 18px;
  color: var(--pp-dim);
  font-size: 13.5px;
  line-height: 1.7;
  border-top: 1px solid var(--pp-rule);
}

.page-products .pp-line--coach .pp-line-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 15px;
  width: 8px;
  height: 1px;
  background: var(--nfs-cyan);
}

.page-products .pp-line--report .pp-line-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 15px;
  width: 8px;
  height: 1px;
  background: var(--nfs-amber);
}

.page-products .pp-merge {
  display: grid;
  gap: 10px;
  margin-top: 30px;
  padding: 22px 0 0;
  border-top: 1px solid var(--nfs-amber);
}

.page-products .pp-merge-key {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--nfs-amber);
}

.page-products .pp-merge p:last-child {
  margin: 0;
  max-width: 74ch;
  font-size: 15.5px;
  line-height: 1.78;
  opacity: .9;
}

/* ---------- 指标联动 ---------- */

.page-products .pp-metric-grid {
  display: grid;
  gap: 28px;
  margin-top: 32px;
}

.page-products .pp-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-products .pp-tags .tag--cyan {
  background: rgba(53, 224, 200, .12);
  border-color: rgba(53, 224, 200, .5);
  color: var(--nfs-cyan);
}

.page-products .pp-tags--idle .tag {
  color: var(--pp-dim);
  border-color: var(--pp-rule-strong);
  background: rgba(27, 36, 56, .6);
}

.page-products .pp-feedback {
  margin-top: 28px;
  padding: 20px 0 20px 18px;
  border-left: 2px solid var(--nfs-cyan);
  background: linear-gradient(90deg, rgba(53, 224, 200, .07), transparent 70%);
}

.page-products .pp-feedback-title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: .06em;
}

.page-products .pp-feedback p:last-child {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.78;
  opacity: .88;
}

.page-products .pp-metric-fig {
  margin: 0;
}

.page-products .pp-rail {
  padding-bottom: 12px;
}

.page-products .pp-rail-card {
  min-width: 210px;
  max-width: 240px;
  padding: 16px 16px 18px;
  border: 1px solid var(--pp-rule);
  background: rgba(27, 36, 56, .5);
  scroll-snap-align: start;
}

.page-products .pp-rail-name {
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--nfs-amber);
}

.page-products .pp-rail-card p:last-child {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--pp-dim);
}

.page-products .pp-rail::-webkit-scrollbar {
  height: 6px;
}

.page-products .pp-rail::-webkit-scrollbar-thumb {
  background: rgba(240, 162, 44, .5);
}

/* ---------- 分段切换 ---------- */

.page-products .pp-tabset {
  margin-top: 30px;
}

.page-products .tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 1px;
  border-bottom: 1px solid var(--pp-rule-strong);
}

.page-products .tab {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--pp-dim);
  font-family: var(--font-body);
  font-size: 14.5px;
  font-weight: 500;
  letter-spacing: .06em;
  padding: 13px 18px;
  cursor: pointer;
  position: relative;
}

.page-products .tab[aria-selected="true"] {
  color: var(--nfs-white);
}

.page-products .tab[aria-selected="true"]::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: var(--nfs-amber);
}

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

.page-products .pp-panel {
  padding-top: 26px;
}

.page-products .pp-panel:focus-visible {
  outline: 1px solid var(--nfs-cyan);
  outline-offset: 4px;
}

/* ---------- 终端 ---------- */

.page-products .pp-terminal {
  display: grid;
  gap: 26px;
}

.page-products .pp-terminal-copy h3 {
  margin: 0 0 12px;
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 21px;
  letter-spacing: .05em;
}

.page-products .pp-terminal-copy p {
  margin: 0;
  max-width: 58ch;
  font-size: 15.5px;
  line-height: 1.78;
  opacity: .88;
}

.page-products .pp-check {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  border-top: 1px solid var(--pp-rule);
}

.page-products .pp-check li {
  position: relative;
  padding: 10px 0 10px 20px;
  border-bottom: 1px solid var(--pp-rule);
  font-size: 14px;
  line-height: 1.7;
  color: var(--pp-dim);
}

.page-products .pp-check li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  width: 9px;
  height: 1px;
  background: var(--nfs-cyan);
}

.page-products .pp-terminal-fig {
  margin: 0;
}

/* ---------- 版本记录 ---------- */

.page-products .pp-version-banner {
  margin: 28px 0 0;
}

.page-products .pp-table-wrap {
  width: 100%;
  overflow-x: auto;
}

.page-products .data-table {
  width: 100%;
  min-width: 520px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-products .data-table th {
  text-align: left;
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--nfs-amber);
  padding: 12px 14px 12px 0;
  border-bottom: 1px solid var(--pp-rule-strong);
}

.page-products .data-table td {
  padding: 14px 14px 14px 0;
  border-bottom: 1px solid var(--pp-rule);
  line-height: 1.7;
  vertical-align: top;
}

.page-products .data-table tbody tr:nth-child(even) {
  background: rgba(27, 36, 56, .55);
}

.page-products .data-table .num {
  font-family: var(--font-mono);
  color: var(--nfs-amber);
  white-space: nowrap;
}

.page-products .data-table td:nth-child(2) {
  font-family: var(--font-head);
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--nfs-white);
}

.page-products .data-table td:last-child {
  color: var(--pp-dim);
}

/* ---------- 安装步骤 ---------- */

.page-products .pp-steps {
  margin-top: 30px;
  border-top: 1px solid var(--pp-rule-strong);
}

.page-products .pp-step {
  border-bottom: 1px solid var(--pp-rule);
}

.page-products .pp-step > summary {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding: 18px 34px 18px 0;
  cursor: pointer;
  list-style: none;
  position: relative;
}

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

.page-products .pp-step > summary::after {
  content: "+";
  position: absolute;
  right: 4px;
  top: 16px;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--nfs-amber);
}

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

.page-products .pp-step > summary:focus-visible {
  outline: 2px solid var(--nfs-cyan);
  outline-offset: -2px;
}

.page-products .pp-step-idx {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--nfs-amber);
  min-width: 26px;
}

.page-products .pp-step-title {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: .05em;
}

.page-products .pp-step-body {
  padding: 0 34px 22px 42px;
}

.page-products .pp-step-body p {
  margin: 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--pp-dim);
}

.page-products .pp-links {
  display: grid;
  gap: 1px;
  margin-top: 40px;
  border-top: 1px solid var(--pp-rule);
}

.page-products .pp-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 15px 2px;
  border-bottom: 1px solid var(--pp-rule);
  color: var(--nfs-white);
  text-decoration: none;
  font-size: 14.5px;
  letter-spacing: .03em;
  transition: color .18s var(--ease), padding-left .18s var(--ease);
}

.page-products .pp-link span {
  color: var(--nfs-amber);
  font-family: var(--font-mono);
}

.page-products .pp-link:hover,
.page-products .pp-link:focus-visible {
  color: var(--nfs-amber-soft);
  padding-left: 8px;
}

/* ---------- 断点 ---------- */

@media (min-width: 720px) {
  .page-products {
    --pp-pad-y: 68px;
  }

  .page-products .pp-hero {
    padding: 36px 0 56px;
  }

  .page-products .pp-dims {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0 24px;
  }

  .page-products .pp-dims li {
    grid-template-columns: 34px 1fr;
    border-bottom: 0;
    border-right: 1px solid var(--pp-rule);
    padding-right: 18px;
  }

  .page-products .pp-dims li:last-child {
    border-right: 0;
  }

  .page-products .pp-merge {
    grid-template-columns: 160px 1fr;
    gap: 24px;
    align-items: start;
  }

  .page-products .pp-merge-key {
    padding-top: 4px;
  }

  .page-products .pp-rail-card {
    min-width: 240px;
    max-width: 280px;
  }

  .page-products .pp-links {
    grid-template-columns: repeat(2, 1fr);
    gap: 0 32px;
    border-bottom: 1px solid var(--pp-rule);
  }

  .page-products .pp-link {
    border-bottom: 0;
  }
}

@media (min-width: 1000px) {
  .page-products {
    --pp-pad-y: 84px;
  }

  .page-products .pp-hero-grid {
    grid-template-columns: 1.1fr .9fr;
    gap: 48px;
    align-items: center;
  }

  .page-products .pp-hero-visual {
    margin-top: 52px;
  }

  .page-products .pp-dual {
    grid-template-columns: 1fr 1fr;
    gap: 0 40px;
  }

  .page-products .pp-line {
    border-bottom: 0;
    padding-bottom: 8px;
  }

  .page-products .pp-line--coach {
    border-right: 1px solid var(--pp-rule);
    padding-right: 40px;
  }

  .page-products .pp-metric-grid {
    grid-template-columns: 1.25fr .75fr;
    gap: 44px;
    align-items: start;
  }

  .page-products .pp-terminal {
    grid-template-columns: 1fr .85fr;
    gap: 44px;
    align-items: center;
  }

  .page-products .pp-terminal--reverse {
    grid-template-columns: .85fr 1fr;
  }

  .page-products .pp-terminal--reverse .pp-terminal-copy {
    order: 2;
  }

  .page-products .pp-terminal--reverse .pp-terminal-fig {
    order: 1;
  }

  .page-products .pp-step-body {
    padding-left: 42px;
  }

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