.page-products {
  --pg-rail-w: 208px;
  background: var(--ink);
  color: var(--body-text);
  font-family: var(--font-sans);
  overflow-x: hidden;
}

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

.page-products [id] {
  scroll-margin-top: calc(var(--header-min) + 24px);
}

/* ---------- hero ---------- */
.page-products .pg-hero {
  position: relative;
  padding: calc(var(--header-h) + var(--s4)) 0 var(--s5);
  background:
    radial-gradient(120% 90% at 88% -10%, rgba(200, 16, 46, 0.24), transparent 62%),
    linear-gradient(180deg, var(--ink-2) 0%, var(--ink) 78%);
  border-bottom: 1px solid var(--line);
}

.page-products .pg-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(245, 241, 232, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(245, 241, 232, 0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 85%);
}

.page-products .pg-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--s5);
}

.page-products .pg-crumb {
  margin-bottom: var(--s3);
  font-size: 12px;
  color: var(--slate);
}

.page-products .pg-crumb a {
  color: var(--slate);
  text-decoration: none;
}

.page-products .pg-crumb a:hover {
  color: var(--sand);
}

.page-products .pg-hero-copy .label {
  display: block;
  margin-bottom: var(--s2);
}

.page-products .pg-hero h1 {
  margin: 0 0 var(--s3);
  font-size: clamp(36px, 8.6vw, 78px);
  line-height: 1.03;
  font-weight: 900;
  font-stretch: condensed;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-products .pg-hero-lead {
  max-width: 56ch;
  margin: 0 0 var(--s4);
  font-size: 16px;
  line-height: 1.72;
  color: rgba(245, 241, 232, 0.82);
}

.page-products .pg-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s2);
  margin-bottom: var(--s5);
}

.page-products .pg-hero-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--s2);
  margin: 0;
  padding: var(--s3) 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-products .pg-hero-facts li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.page-products .pg-hero-facts .num {
  font-size: clamp(22px, 5vw, 30px);
  font-weight: 700;
  color: var(--poplar);
  line-height: 1;
}

.page-products .pg-fact-key {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--slate);
}

.page-products .pg-hero-aside {
  display: grid;
  gap: var(--s3);
}

.page-products .pg-hero-figure {
  margin: 0;
  border: 1px solid var(--line);
}

.page-products .pg-status-panel {
  padding: var(--s3);
  background: rgba(20, 23, 28, 0.72);
  border: 1px solid var(--line);
  border-left: 2px solid var(--red);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.page-products .pg-status-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--s1);
}

.page-products .pg-status-panel p {
  margin: var(--s1) 0 var(--s3);
  font-size: 13px;
  line-height: 1.65;
  color: rgba(245, 241, 232, 0.74);
}

.page-products .pg-status-panel p:last-child {
  margin-bottom: 0;
}

/* ---------- layout + rail ---------- */
.page-products .pg-layout {
  display: grid;
  gap: var(--s5);
  padding-top: var(--s5);
  padding-bottom: var(--s6);
}

.page-products .pg-rail {
  position: static;
}

.page-products .pg-rail .label {
  margin: 0 0 var(--s2);
}

.page-products .pg-rail-list {
  display: flex;
  gap: var(--s2);
  margin: 0;
  padding: 0 0 var(--s2);
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-products .pg-rail-list::-webkit-scrollbar {
  display: none;
}

.page-products .pg-rail-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  white-space: nowrap;
  font-size: 13px;
  text-decoration: none;
  color: var(--slate);
  border: 1px solid var(--line-soft);
  background: var(--ink-2);
  transition: color 220ms var(--ease), border-color 220ms var(--ease);
}

.page-products .pg-rail-link .num {
  font-size: 11px;
  color: var(--sand);
}

.page-products .pg-rail-link:hover,
.page-products .pg-rail-link[aria-current="true"] {
  color: var(--paper);
  border-color: rgba(200, 16, 46, 0.7);
}

.page-products .pg-rail-link[aria-current="true"] .num {
  color: var(--poplar);
}

/* ---------- sections ---------- */
.page-products .pg-section + .pg-section {
  margin-top: var(--s6);
}

.page-products .pg-section-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--s3);
  align-items: start;
  padding-bottom: var(--s3);
  border-bottom: 1px solid var(--line);
  margin-bottom: var(--s4);
}

.page-products .pg-num {
  font-size: clamp(30px, 7vw, 56px);
  line-height: 1;
  font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 1px rgba(201, 162, 39, 0.62);
}

.page-products .pg-section-title .label {
  display: block;
  margin-bottom: var(--s1);
}

.page-products .pg-section-title h2 {
  margin: 0 0 var(--s2);
  color: var(--paper);
  font-weight: 900;
  font-stretch: condensed;
  line-height: 1.08;
  letter-spacing: -0.015em;
}

.page-products .pg-section-lead {
  max-width: 64ch;
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: rgba(245, 241, 232, 0.76);
}

/* ---------- version split ---------- */
.page-products .version-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border-top: 1px solid var(--line);
}

.page-products .version-col {
  padding: var(--s4) 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-products .version-col--v2 {
  box-shadow: inset 0 3px 0 var(--red);
}

.page-products .version-col--v1 {
  box-shadow: inset 0 3px 0 var(--plateau);
}

.page-products .version-col .label {
  display: block;
  margin-bottom: var(--s2);
}

.page-products .version-title {
  margin: 0 0 var(--s1);
  font-size: clamp(22px, 4.4vw, 28px);
  font-weight: 900;
  color: var(--paper);
  letter-spacing: -0.01em;
}

.page-products .version-fit {
  margin: 0 0 var(--s3);
  font-size: 14px;
  line-height: 1.65;
  color: var(--poplar);
}

.page-products .version-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-products .version-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(245, 241, 232, 0.8);
}

.page-products .version-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 1px;
  background: var(--sand);
}

.page-products .pg-figure-wide {
  margin: var(--s4) 0 0;
}

.page-products .pg-figure-wide .figure-caption {
  margin-top: var(--s2);
  font-size: 12px;
  color: var(--slate);
}

/* ---------- packages ---------- */
.page-products .pkg-wrap {
  display: grid;
  gap: var(--s4);
}

.page-products .pkg-blocks {
  display: grid;
  gap: var(--s4);
  min-width: 0;
}

.page-products .pkg-block {
  background: var(--ink-2);
  border: 1px solid var(--line-soft);
  padding: var(--s3) var(--s3) var(--s3);
}

.page-products .pkg-block--v2 {
  border-left: 2px solid var(--red);
}

.page-products .pkg-block--v1 {
  border-left: 2px solid var(--plateau);
}

.page-products .pkg-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--s2);
  margin-bottom: var(--s3);
}

.page-products .pkg-head h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 900;
  color: var(--paper);
  letter-spacing: 0.01em;
}

.page-products .pkg-scroll {
  overflow-x: auto;
}

.page-products .pkg-table {
  width: 100%;
  min-width: 560px;
  border-collapse: collapse;
  font-size: 13px;
}

.page-products .pkg-caption {
  caption-side: top;
  text-align: left;
  padding-bottom: var(--s2);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--slate);
}

.page-products .pkg-table th,
.page-products .pkg-table td {
  text-align: left;
  padding: 12px 10px;
  border-bottom: 1px solid var(--line-soft);
  vertical-align: middle;
}

.page-products .pkg-table thead th {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate);
  border-bottom: 1px solid var(--line);
}

.page-products .pkg-table tbody th {
  font-weight: 600;
  color: var(--paper);
  white-space: nowrap;
}

.page-products .pkg-table tbody tr:last-child th,
.page-products .pkg-table tbody tr:last-child td {
  border-bottom: 0;
}

.page-products .pkg-table tbody tr:hover {
  background: rgba(245, 241, 232, 0.035);
}

.page-products .pkg-file {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--plateau-lift);
  word-break: break-all;
}

.page-products .md5 {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--poplar);
  word-break: break-all;
  user-select: all;
  padding: 3px 6px;
  background: rgba(227, 176, 75, 0.1);
  border: 1px dashed rgba(227, 176, 75, 0.4);
  cursor: text;
}

.page-products .pkg-hint {
  margin: var(--s3) 0 0;
  padding-top: var(--s2);
  border-top: 1px solid var(--line-soft);
  font-size: 12px;
  line-height: 1.65;
  color: var(--slate);
}

.page-products .pkg-side {
  display: grid;
  gap: var(--s3);
  align-content: start;
}

.page-products .pkg-side .figure {
  margin: 0;
  border: 1px solid var(--line-soft);
}

.page-products .pkg-side .figure-caption {
  padding: 10px 12px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--slate);
  background: var(--ink-2);
}

.page-products .req-panel {
  padding: var(--s3);
  background: linear-gradient(160deg, rgba(47, 110, 143, 0.16), transparent 70%);
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--plateau);
}

.page-products .req-panel .label {
  display: block;
  margin-bottom: var(--s2);
}

.page-products .req-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
  font-size: 13px;
  line-height: 1.55;
  color: rgba(245, 241, 232, 0.8);
}

.page-products .req-list li {
  padding-left: 16px;
  position: relative;
}

.page-products .req-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  background: var(--plateau-lift);
}

/* ---------- install ---------- */
.page-products .install-grid {
  display: grid;
  gap: var(--s4);
}

.page-products .steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--s4);
}

.page-products .step {
  position: relative;
  padding-top: var(--s3);
  border-top: 1px solid var(--line);
}

.page-products .step-num {
  display: block;
  font-size: 26px;
  font-weight: 700;
  color: var(--red);
  line-height: 1;
  margin-bottom: var(--s2);
}

.page-products .step h3 {
  margin: 0 0 var(--s1);
  font-size: 17px;
  font-weight: 800;
  color: var(--paper);
}

.page-products .step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(245, 241, 232, 0.78);
}

.page-products .install-figure {
  margin: 0;
  border: 1px solid var(--line-soft);
  align-self: start;
}

/* ---------- reels ---------- */
.page-products .reel-rail {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 82%;
  gap: var(--s2);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: var(--s3);
  margin-top: var(--s4);
  scrollbar-color: var(--red-deep) transparent;
}

.page-products .reel-card {
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: var(--s1);
  padding: var(--s3);
  background: var(--ink-2);
  border: 1px solid var(--line-soft);
  border-top: 3px solid var(--poplar);
}

.page-products .reel-card--archived {
  border-top-color: var(--plateau);
}

.page-products .reel-round {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
  color: var(--paper);
  letter-spacing: 0.02em;
}

.page-products .reel-series {
  margin: 0 0 var(--s2);
  font-size: 13px;
  color: var(--sand);
}

.page-products .reel-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--s1);
  margin: 0 0 var(--s3);
  padding: var(--s2) 0;
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-products .reel-meta div {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-products .reel-meta dt {
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--slate);
}

.page-products .reel-meta dd {
  margin: 0;
  font-size: 13px;
  color: var(--paper);
}

.page-products .reel-check {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--slate);
  cursor: pointer;
  user-select: none;
}

.page-products .reel-check input {
  width: 16px;
  height: 16px;
  accent-color: var(--red);
  cursor: pointer;
}

.page-products .reel-check input:checked + span {
  color: var(--paper);
}

.page-products .reel-check input:checked + span::after {
  content: " · 已加入";
  color: var(--poplar);
}

.page-products .reel-note {
  margin: var(--s3) 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--slate);
}

.page-products .reel-note a {
  color: var(--poplar);
  text-decoration: none;
  border-bottom: 1px solid rgba(227, 176, 75, 0.5);
}

/* ---------- batches ---------- */
.page-products .batch-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .batch-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--s1);
  padding: var(--s3) 0;
  border-bottom: 1px solid var(--line-soft);
}

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

.page-products .bchip {
  justify-self: start;
  padding: 2px 8px;
  font-size: 11px;
  letter-spacing: 0.06em;
  border: 1px solid var(--line);
  color: var(--sand);
}

.page-products .bchip--v2 {
  color: var(--paper);
  border-color: rgba(200, 16, 46, 0.8);
  background: rgba(200, 16, 46, 0.2);
}

.page-products .batch-tag {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--slate);
}

.page-products .batch-row p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(245, 241, 232, 0.8);
}

.page-products .known-issue {
  margin-top: var(--s4);
  padding: var(--s3);
  border-left: 2px solid var(--card-yellow);
  background: rgba(240, 180, 41, 0.08);
}

.page-products .known-issue .label {
  display: block;
  margin-bottom: var(--s1);
}

.page-products .known-issue p:last-child {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(245, 241, 232, 0.82);
}

/* ---------- trouble ---------- */
.page-products .qa-group {
  border-top: 1px solid var(--line);
}

.page-products .qa {
  border-bottom: 1px solid var(--line-soft);
}

.page-products .qa summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s2);
  padding: var(--s3) 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--paper);
  cursor: pointer;
  list-style: none;
}

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

.page-products .qa summary::after {
  content: "＋";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--sand);
}

.page-products .qa[open] summary::after {
  content: "－";
  color: var(--red);
}

.page-products .qa p {
  margin: 0 0 var(--s3);
  max-width: 64ch;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(245, 241, 232, 0.78);
}

.page-products .help-band {
  display: grid;
  gap: var(--s3);
  margin-top: var(--s4);
  padding: var(--s3);
  background: var(--ink-2);
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--red);
}

.page-products .help-copy .label {
  display: block;
  margin-bottom: var(--s1);
}

.page-products .help-copy p:last-child {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: rgba(245, 241, 232, 0.8);
}

.page-products .help-strong {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--poplar);
  word-break: break-all;
}

.page-products .help-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s2);
  align-content: start;
}

/* ---------- cta band ---------- */
.page-products .pg-cta {
  display: grid;
  gap: 0;
  margin-top: var(--s6);
  border-top: 1px solid var(--line);
}

.page-products .cta-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: var(--s3) 0;
  text-decoration: none;
  border-bottom: 1px solid var(--line-soft);
  transition: color 220ms var(--ease), padding-left 220ms var(--ease);
}

.page-products .cta-item:hover {
  padding-left: 8px;
}

.page-products .cta-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--paper);
}

.page-products .cta-item:hover .cta-title {
  color: var(--poplar);
}

/* ---------- breakpoints ---------- */
@media (min-width: 720px) {
  .page-products .pg-hero {
    padding-top: calc(var(--header-h) + var(--s5));
    padding-bottom: var(--s6);
  }

  .page-products .version-col {
    padding: var(--s5) 0;
  }

  .page-products .reel-rail {
    grid-auto-columns: 300px;
  }

  .page-products .batch-row {
    grid-template-columns: 76px 156px minmax(0, 1fr);
    align-items: baseline;
    gap: var(--s3);
  }

  .page-products .bchip {
    justify-self: start;
  }

  .page-products .help-band {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }

  .page-products .pg-cta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--s3);
    border-top: 2px solid var(--red);
  }

  .page-products .cta-item {
    border-bottom: 1px solid var(--line-soft);
    padding-top: var(--s3);
  }
}

@media (min-width: 900px) {
  .page-products .pg-hero-grid {
    grid-template-columns: minmax(0, 1.32fr) minmax(0, 0.68fr);
    align-items: start;
    gap: var(--s5);
  }

  .page-products .pg-hero-aside {
    padding-top: var(--s5);
  }

  .page-products .version-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    column-gap: 0;
  }

  .page-products .version-col {
    padding: var(--s5) var(--s4) var(--s5) 0;
    border-bottom: 1px solid var(--line-soft);
  }

  .page-products .version-col--v1 {
    padding-left: var(--s4);
    padding-right: 0;
    border-left: 1px solid var(--line);
  }

  .page-products .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--s3);
  }

  .page-products .install-grid {
    grid-template-columns: minmax(0, 1fr) 216px;
    gap: var(--s4);
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-products .pg-layout {
    grid-template-columns: var(--pg-rail-w) minmax(0, 1fr);
    gap: var(--s5);
  }

  .page-products .pg-rail {
    position: sticky;
    top: calc(var(--header-min) + 32px);
    align-self: start;
  }

  .page-products .pg-rail-list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-products .pg-rail-link {
    width: 100%;
    justify-content: flex-start;
    padding: 9px 12px;
    border: 0;
    border-left: 2px solid var(--line-soft);
    background: transparent;
  }

  .page-products .pg-rail-link:hover,
  .page-products .pg-rail-link[aria-current="true"] {
    border-left-color: var(--red);
    background: rgba(245, 241, 232, 0.04);
  }

  .page-products .pkg-wrap {
    grid-template-columns: minmax(0, 1fr) 272px;
    gap: var(--s4);
    align-items: start;
  }

  .page-products .pg-section-head {
    gap: var(--s4);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pg-rail-link,
  .page-products .cta-item {
    transition: none;
  }
}
<<<END>>>