.page-products {
  --pp-gap: clamp(1.25rem, 3.5vw, 2.5rem);
  --pp-sec-gap: clamp(2.5rem, 6vw, 4.25rem);
  --pp-soft: rgba(243, 233, 215, 0.72);
  --pp-card-bg: linear-gradient(180deg, rgba(26, 14, 46, 0.88), rgba(7, 7, 12, 0.92));
  background: var(--void);
  color: var(--paper);
  font-family: var(--font-body);
  line-height: 1.8;
}

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

.page-products h1,
.page-products h2,
.page-products h3 {
  margin: 0;
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: 0.01em;
}

.page-products p {
  margin: 0 0 1rem;
}

.page-products a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(38, 247, 227, 0.35);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-products a:hover,
.page-products a:focus-visible {
  color: var(--pink);
  border-bottom-color: var(--pink);
}

.page-products a:focus-visible,
.page-products .pp-toc-link:focus-visible {
  outline: 2px solid var(--pink);
  outline-offset: 3px;
}

/* ---------- 首屏框景 ---------- */
.pp-hero {
  position: relative;
  padding: clamp(1.75rem, 5vw, 3.25rem) 0 clamp(2rem, 5vw, 3.25rem);
  background:
    radial-gradient(120% 95% at 92% 0%, rgba(38, 247, 227, 0.12), transparent 60%),
    radial-gradient(95% 80% at 0% 100%, rgba(255, 107, 44, 0.12), transparent 62%),
    linear-gradient(180deg, var(--violet), var(--void) 82%);
  border-bottom: 1px solid var(--line);
}

.pp-hero .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0 0 clamp(1.25rem, 4vw, 2.25rem);
  padding: 0;
  list-style: none;
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--ash);
}

.pp-hero .breadcrumb li + li::before {
  content: "/";
  margin-right: 0.5rem;
  color: var(--line-strong);
}

.pp-hero .breadcrumb a {
  color: var(--ash);
  border-bottom-color: transparent;
}

.pp-hero .breadcrumb a:hover,
.pp-hero .breadcrumb a:focus-visible {
  color: var(--cyan);
}

.pp-hero-grid {
  display: grid;
  gap: var(--pp-gap);
}

.pp-hero-main h1 {
  margin: 0.5rem 0 1rem;
  font-size: clamp(2rem, 8vw, 3.6rem);
  color: var(--paper);
}

.pp-hero-main .lede {
  max-width: 40em;
  color: var(--pp-soft);
  font-size: clamp(0.95rem, 2.4vw, 1.05rem);
  line-height: 1.85;
}

.pp-hero-main .btn-row {
  margin-top: 1.5rem;
}

.pp-hero-panel {
  position: relative;
  padding: 1.15rem 1.2rem 1.35rem;
  background: rgba(7, 7, 12, 0.62);
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
  box-shadow: var(--shadow-card);
}

.pp-panel-head {
  margin: 0 0 1rem;
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ash);
}

.pp-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem 0.9rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.pp-stat {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding-top: 0.55rem;
  border-top: 1px solid var(--line-soft);
}

.pp-stat-num {
  font-family: var(--font-data);
  font-size: clamp(1.4rem, 5vw, 1.85rem);
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
  line-height: 1.1;
}

.pp-stat:nth-child(2) .pp-stat-num,
.pp-stat:nth-child(4) .pp-stat-num {
  color: var(--orange);
}

.pp-stat-label {
  font-size: 0.76rem;
  color: var(--ash);
  line-height: 1.5;
}

/* ---------- 双栏长卷 ---------- */
.pp-body {
  display: grid;
  gap: var(--pp-gap);
  padding-block: clamp(2rem, 5vw, 3.5rem);
}

.pp-toc {
  border-top: 1px solid var(--line);
  padding-top: 0.9rem;
}

.pp-toc-title {
  margin: 0 0 0.75rem;
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ash);
}

.pp-toc-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.35rem 1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.pp-toc-link {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  padding: 0.3rem 0;
  border-bottom: 1px solid transparent;
  font-size: 0.85rem;
  color: var(--pp-soft);
}

.pp-toc-idx {
  font-family: var(--font-data);
  font-size: 0.7rem;
  color: var(--ash);
}

.pp-toc-link:hover,
.pp-toc-link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--line-cyan);
}

.pp-toc-link[aria-current="true"] {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.pp-toc-link[aria-current="true"] .pp-toc-idx {
  color: var(--orange);
}

.pp-content {
  display: grid;
  gap: var(--pp-sec-gap);
  min-width: 0;
}

/* ---------- 章节 ---------- */
.pp-sec {
  min-width: 0;
}

.pp-sec-head {
  display: grid;
  gap: 0.55rem;
  padding-bottom: 1rem;
  margin-bottom: 1.35rem;
  border-bottom: 1px solid var(--line);
}

.pp-sec-num {
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.24em;
  color: var(--cyan);
}

.pp-sec-head h2 {
  font-size: clamp(1.45rem, 5.2vw, 2.3rem);
  color: var(--paper);
}

.pp-sec-lede {
  max-width: 44em;
  margin: 0;
  color: var(--pp-soft);
  font-size: 0.95rem;
}

.pp-sec > p {
  max-width: 46em;
  color: var(--pp-soft);
  font-size: 0.95rem;
}

.pp-figure {
  margin: 0 0 1.35rem;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--violet);
  box-shadow: var(--shadow-card);
}

.pp-figure figcaption,
.pp-band figcaption {
  padding: 0.6rem 0.9rem;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-data);
  font-size: 0.72rem;
  line-height: 1.6;
  color: var(--ash);
}

.pp-band {
  margin: 0 0 1.35rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.pp-band img {
  width: 100%;
  object-fit: cover;
  opacity: 0.55;
  filter: saturate(0.85);
}

.pp-list {
  margin: 0 0 1.2rem;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.5rem;
}

.pp-list li {
  position: relative;
  padding-left: 1.15rem;
  font-size: 0.92rem;
  color: var(--pp-soft);
}

.pp-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  background: var(--cyan);
  transform: rotate(45deg);
}

.pp-note {
  margin: 1.2rem 0 0;
  padding: 0.9rem 1rem;
  background: rgba(243, 233, 215, 0.06);
  border-left: 2px solid var(--warn);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  font-size: 0.88rem;
  color: var(--paper);
}

/* ---------- 卡片 ---------- */
.pp-grid-2 {
  display: grid;
  gap: 0.9rem;
  margin-bottom: 1.1rem;
}

.pp-card {
  position: relative;
  padding: 1.1rem 1.15rem 1.2rem;
  background: var(--pp-card-bg);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-card);
  transition: transform 0.22s var(--ease), border-color 0.22s var(--ease), box-shadow 0.22s var(--ease);
}

.pp-card::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--orange));
  transition: width 0.3s var(--ease);
}

.pp-card:hover,
.pp-card:focus-within {
  transform: translateY(-3px);
  border-color: var(--line-cyan);
  box-shadow: var(--shadow-cyan);
}

.pp-card:hover::after,
.pp-card:focus-within::after {
  width: 100%;
}

.pp-card-idx {
  display: inline-block;
  margin-bottom: 0.5rem;
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--orange);
}

.pp-card h3 {
  font-size: 1.08rem;
  margin-bottom: 0.4rem;
  color: var(--paper);
}

.pp-card p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--pp-soft);
}

/* ---------- 指标三联 ---------- */
.pp-strip {
  display: grid;
  gap: 1px;
  margin-bottom: 1.2rem;
  background: var(--line-soft);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
}

.pp-cell {
  padding: 0.9rem 1rem;
  background: rgba(26, 14, 46, 0.72);
}

.pp-cell strong {
  display: block;
  margin-bottom: 0.25rem;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1rem;
  color: var(--cyan);
}

.pp-cell span {
  font-size: 0.82rem;
  line-height: 1.65;
  color: var(--ash);
}

/* ---------- 下载双选 ---------- */
.pp-dl {
  display: grid;
  gap: 0.9rem;
}

.pp-dl-item {
  padding: 1.05rem 1.15rem;
  background: rgba(12, 79, 85, 0.16);
  border: 1px solid var(--line);
  border-top: 2px solid var(--orange);
  border-radius: 0 0 var(--r-md) var(--r-md);
}

.pp-dl-item h3 {
  font-size: 1.05rem;
  margin-bottom: 0.4rem;
  color: var(--paper);
}

.pp-dl-item p {
  margin: 0;
  font-size: 0.88rem;
  color: var(--pp-soft);
}

/* ---------- 图表与刷新 ---------- */
.pp-chart-wrap {
  margin-bottom: 1.25rem;
  padding: 1rem 1rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(7, 7, 12, 0.6);
}

.pp-chart {
  display: block;
  width: 100%;
  height: auto;
}

.pp-chart-axis {
  stroke: var(--line-strong);
  stroke-width: 1;
}

.pp-bar-c rect {
  fill: var(--cyan);
  transition: opacity 0.2s var(--ease);
}

.pp-bar-o rect {
  fill: var(--orange);
  transition: opacity 0.2s var(--ease);
}

.pp-chart-labels text {
  fill: var(--ash);
  font-family: var(--font-data);
  font-size: 10px;
  text-anchor: middle;
}

.pp-chart-wrap:hover .pp-bar-c rect {
  opacity: 0.82;
}

.pp-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 0.75rem 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-data);
  font-size: 0.72rem;
  color: var(--ash);
}

.pp-legend li {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.pp-dot {
  width: 9px;
  height: 9px;
  border-radius: 1px;
}

.pp-dot--cyan {
  background: var(--cyan);
}

.pp-dot--orange {
  background: var(--orange);
}

.pp-refresh {
  display: grid;
  gap: 0.75rem;
  margin: 1.2rem 0;
}

.pp-refresh-item {
  padding: 0.85rem 1rem;
  border-left: 2px solid var(--line-cyan);
  background: rgba(26, 14, 46, 0.55);
}

.pp-refresh-num {
  display: block;
  font-family: var(--font-data);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.35rem, 4.6vw, 1.7rem);
  line-height: 1.1;
  color: var(--cyan);
}

.pp-refresh-label {
  display: block;
  margin-top: 0.2rem;
  font-size: 0.8rem;
  color: var(--ash);
}

/* ---------- 收束band ---------- */
.pp-start {
  margin-top: clamp(2rem, 6vw, 3.5rem);
  padding: clamp(2.25rem, 6vw, 4rem) 0;
  background: var(--paper);
  color: var(--void);
  border-top: 1px solid var(--line-strong);
}

.pp-start-head {
  max-width: 42em;
  margin-bottom: clamp(1.5rem, 4vw, 2.25rem);
}

.pp-start-head .pp-sec-num {
  color: var(--teal);
}

.pp-start-head h2 {
  margin: 0.4rem 0 0.75rem;
  font-size: clamp(1.6rem, 5.6vw, 2.5rem);
  color: var(--void);
}

.pp-start-head p {
  color: rgba(7, 7, 12, 0.72);
  font-size: 0.95rem;
}

.pp-start-steps {
  display: grid;
  gap: 0.9rem;
  margin: 0 0 1.6rem;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.pp-step {
  padding: 1.05rem 1.1rem 1.15rem;
  background: rgba(7, 7, 12, 0.05);
  border: 1px solid rgba(7, 7, 12, 0.16);
  border-radius: var(--r-md);
}

.pp-step-num {
  display: block;
  margin-bottom: 0.35rem;
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  color: #B13A00;
}

.pp-step h3 {
  font-size: 1.05rem;
  margin-bottom: 0.35rem;
  color: var(--void);
}

.pp-step p {
  margin: 0 0 0.85rem;
  font-size: 0.86rem;
  color: rgba(7, 7, 12, 0.72);
}

.pp-start .pp-step-link {
  color: var(--void);
  border-color: rgba(7, 7, 12, 0.35);
  padding: 0.4rem 0.8rem;
  font-size: 0.78rem;
  display: inline-block;
  border-radius: var(--r-sm);
  border-bottom-width: 1px;
  border-bottom-style: solid;
}

.pp-start .pp-step-link:hover,
.pp-start .pp-step-link:focus-visible {
  color: var(--void);
  border-color: var(--orange);
  background: rgba(255, 107, 44, 0.22);
}

.pp-start .btn--primary {
  background: var(--orange);
  color: var(--void);
  border-bottom: none;
}

.pp-start .btn--primary:hover,
.pp-start .btn--primary:focus-visible {
  color: var(--void);
  background: var(--pink);
}

.pp-start .btn-row {
  margin-bottom: 1.25rem;
}

.pp-linkline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin: 0;
  font-family: var(--font-data);
  font-size: 0.74rem;
  color: rgba(7, 7, 12, 0.55);
}

.pp-linkline a {
  color: var(--teal);
  border-bottom-color: rgba(12, 79, 85, 0.4);
}

.pp-linkline a:hover,
.pp-linkline a:focus-visible {
  color: #B13A00;
  border-bottom-color: #B13A00;
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .pp-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

  .pp-refresh {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .pp-start-steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .pp-grid-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
  }

  .pp-toc-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .pp-hero-grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 0.72fr);
    align-items: start;
    column-gap: clamp(2rem, 5vw, 4rem);
  }

  .pp-hero-panel {
    margin-top: 1.5rem;
  }

  .pp-body {
    grid-template-columns: minmax(0, 208px) minmax(0, 1fr);
    column-gap: clamp(2rem, 4vw, 3.5rem);
    align-items: start;
    padding-block: clamp(2.5rem, 5vw, 4.5rem);
  }

  .pp-toc {
    position: sticky;
    top: calc(var(--header-h) + 1.5rem);
    border-top-color: var(--line-cyan);
  }

  .pp-toc-list {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.15rem;
  }

  .pp-toc-link {
    font-size: 0.82rem;
  }

  .pp-sec-lede,
  .pp-sec > p {
    font-size: 1rem;
  }
}

@media (min-width: 1180px) {
  .pp-hero-main h1 {
    font-size: clamp(2.8rem, 4.4vw, 4rem);
  }

  .pp-content {
    gap: clamp(3rem, 5vw, 5rem);
  }

  .pp-band img {
    max-height: 260px;
  }
}

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

  .pp-card:hover,
  .pp-card:focus-within {
    transform: none;
  }
}
<<<END>>>