.page-products {
  --prod-ink: #1A1D1D;
  --prod-blue: #0A2A4A;
  --prod-green: #00E676;
  --prod-gold: #FFB300;
  --prod-bg: #F5F0E6;
  --prod-line: #D0D0D0;
  --prod-gray: #5F6B6B;
  --prod-dark: #004D40;
  position: relative;
  background: var(--prod-bg);
  color: var(--prod-ink);
  font-family: var(--font-body);
  line-height: 1.6;
}

.page-products .prod-section-inner {
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: 1.25rem;
}

.page-products .page-section {
  padding-block: 2.75rem 3rem;
  position: relative;
}

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

.page-products .prod-section-head {
  margin-bottom: 2rem;
}

.page-products .prod-section-head .section-title {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
}

/* ===== Hero 封面区 ===== */
.page-products .prod-hero {
  position: relative;
  padding-block: 2rem 2.5rem;
  border-bottom: 1px solid var(--prod-line);
  background-image:
    linear-gradient(to right, rgba(10, 42, 74, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(10, 42, 74, 0.05) 1px, transparent 1px);
  background-size: 44px 44px;
}

.page-products .prod-hero-layout {
  display: grid;
  gap: 1.75rem;
  align-items: center;
}

.page-products .prod-hero-copy {
  max-width: 62ch;
}

.page-products .prod-breadcrumb {
  margin-bottom: 1.5rem;
}

.page-products .prod-hero-kicker {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0;
  font-family: var(--font-data);
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  color: var(--prod-blue);
  text-transform: uppercase;
}

.page-products .prod-kicker-rule {
  display: inline-block;
  width: 48px;
  height: 1px;
  background: var(--prod-green);
}

.page-products .prod-kicker-code {
  color: var(--prod-green);
  font-weight: 700;
}

.page-products .prod-hero-title {
  font-family: var(--font-heading);
  font-size: clamp(1.85rem, 4.2vw, 3.25rem);
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin: 0.9rem 0 1rem;
}

.page-products .prod-hero-desc {
  margin: 0 0 1.5rem;
  font-size: 1rem;
  color: var(--prod-gray);
  max-width: 58ch;
}

.page-products .prod-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.page-products .prod-hero-meta {
  margin: 0;
  font-family: var(--font-data);
  font-size: 0.72rem;
  color: var(--prod-gray);
  letter-spacing: 0.04em;
}

.page-products .prod-hero-figure {
  margin: 0;
}

.page-products .image-frame figcaption {
  font-family: var(--font-data);
  font-size: 0.72rem;
  color: var(--prod-gray);
  padding-top: 0.5rem;
  letter-spacing: 0.04em;
}

/* ===== 核心功能 ===== */
.page-products .prod-features {
  background: var(--prod-bg);
}

.page-products .prod-features-grid {
  display: grid;
  gap: 1.75rem;
}

.page-products .prod-feature-index {
  border-top: 3px solid var(--prod-blue);
  padding-top: 1rem;
}

.page-products .prod-index-title {
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--prod-gray);
  margin: 0 0 0.75rem;
}

.page-products .prod-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .prod-index-link {
  display: flex;
  gap: 0.65rem;
  align-items: baseline;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--prod-line);
  color: var(--prod-ink);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  transition: color 0.2s ease, border-color 0.2s ease, padding-left 0.2s ease;
}

.page-products .prod-index-link .prod-index-num {
  font-family: var(--font-data);
  color: var(--prod-gold);
  font-size: 0.72rem;
  font-weight: 400;
}

.page-products .prod-index-link:hover,
.page-products .prod-index-link:focus {
  color: var(--prod-blue);
  border-color: var(--prod-blue);
  padding-left: 0.3rem;
}

.page-products .prod-index-link:focus-visible {
  outline: 2px solid var(--prod-green);
  outline-offset: 2px;
}

.page-products .prod-index-footnote {
  font-family: var(--font-data);
  font-size: 0.68rem;
  color: var(--prod-gray);
  margin-top: 1rem;
  letter-spacing: 0.08em;
}

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

.page-products .prod-feature-item {
  position: relative;
  padding: 1.4rem 1rem 1.4rem 1.4rem;
  border-bottom: 1px solid var(--prod-line);
  list-style: none;
  transition: background 0.25s ease;
}

.page-products .prod-feature-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.25rem;
  bottom: 1.25rem;
  width: 3px;
  background: transparent;
  transition: background 0.25s ease;
}

.page-products .prod-feature-item:hover {
  background: rgba(10, 42, 74, 0.04);
}

.page-products .prod-feature-item:hover::before {
  background: var(--prod-green);
}

.page-products .prod-feature-head {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  margin-bottom: 0.4rem;
}

.page-products .prod-feature-code {
  font-family: var(--font-data);
  font-size: 0.78rem;
  color: var(--prod-gold);
  letter-spacing: 0.06em;
}

.page-products .prod-feature-title {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  margin: 0;
  letter-spacing: -0.01em;
}

.page-products .prod-feature-text {
  margin: 0;
  color: var(--prod-gray);
  font-size: 0.94rem;
  max-width: 68ch;
}

/* ===== 覆盖联赛与数据 ===== */
.page-products .prod-coverage {
  background: #FDFBF5;
  border-block: 1px solid var(--prod-line);
}

.page-products .prod-coverage-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.page-products .prod-stat {
  background: var(--prod-blue);
  color: var(--prod-bg);
  padding: 1.25rem 1rem 1rem;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.page-products .prod-stat::after {
  content: "";
  position: absolute;
  right: -20px;
  bottom: -20px;
  width: 64px;
  height: 64px;
  border: 8px solid rgba(0, 230, 118, 0.28);
  border-radius: 2px;
  transform: rotate(45deg);
}

.page-products .prod-stat-label {
  display: block;
  font-family: var(--font-data);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  opacity: 0.72;
}

.page-products .prod-stat-value {
  display: block;
  font-family: var(--font-data);
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1.15;
  margin-top: 0.4rem;
  color: var(--prod-green);
}

.page-products .prod-stat-suffix {
  font-size: 1.3rem;
  color: var(--prod-gold);
}

.page-products .prod-stat-unit {
  display: block;
  font-size: 0.76rem;
  color: var(--prod-bg);
  opacity: 0.85;
  margin-top: 0.25rem;
}

.page-products .prod-latency {
  margin: 1.5rem 0 2rem;
  padding: 1rem 1.25rem;
  background: rgba(10, 42, 74, 0.05);
  border-left: 3px solid var(--prod-green);
}

.page-products .prod-latency-scale {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.page-products .prod-latency-unit {
  font-family: var(--font-data);
  font-size: 0.72rem;
  color: var(--prod-gray);
}

.page-products .prod-latency-track {
  position: relative;
  flex: 1;
  height: 10px;
  background: var(--prod-line);
  border-radius: 2px;
  overflow: hidden;
}

.page-products .prod-latency-fill {
  display: block;
  height: 100%;
  width: 30%;
  background: linear-gradient(90deg, var(--prod-blue), var(--prod-green));
  position: relative;
}

.page-products .prod-latency-fill::after {
  content: "";
  position: absolute;
  right: 0;
  top: 0;
  width: 2px;
  height: 100%;
  background: var(--prod-gold);
}

.page-products .prod-latency-meta {
  margin: 0.5rem 0 0;
  font-size: 0.85rem;
  color: var(--prod-gray);
}

.page-products .prod-latency-meta strong {
  color: var(--prod-blue);
}

.page-products .prod-coverage-visuals {
  display: grid;
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.page-products .prod-coverage-visuals figure {
  margin: 0;
}

.page-products .prod-coverage-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--prod-line);
}

.page-products .prod-coverage-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  font-size: 0.88rem;
  background: rgba(255, 255, 255, 0.65);
}

.page-products .prod-coverage-table caption {
  caption-side: bottom;
  text-align: left;
  font-family: var(--font-data);
  font-size: 0.72rem;
  color: var(--prod-gray);
  padding-top: 0.5rem;
}

.page-products .prod-coverage-table th {
  background: var(--prod-blue);
  color: var(--prod-bg);
  font-family: var(--font-data);
  font-size: 0.75rem;
  text-align: left;
  padding: 0.8rem 0.9rem;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.page-products .prod-coverage-table td {
  border-bottom: 1px solid var(--prod-line);
  padding: 0.8rem 0.9rem;
  transition: background 0.2s ease, color 0.2s ease, font-weight 0.2s ease;
}

.page-products .prod-coverage-table tbody tr {
  transition: background 0.2s ease;
}

.page-products .prod-coverage-table tbody tr:hover {
  background: rgba(10, 42, 74, 0.07);
}

.page-products .prod-coverage-table tbody tr:hover td:first-child {
  color: var(--prod-blue);
  font-weight: 700;
}

.page-products .prod-coverage-note {
  display: grid;
  gap: 0.6rem;
  margin-top: 1.5rem;
}

.page-products .prod-coverage-note p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--prod-gray);
  max-width: 90ch;
}

/* ===== 使用场景 ===== */
.page-products .prod-scenarios {
  background: var(--prod-blue);
  color: var(--prod-bg);
  border-block: 3px solid var(--prod-green);
}

.page-products .prod-section-head-inverse .section-index {
  color: var(--prod-green);
}

.page-products .prod-section-head-inverse .section-title {
  color: var(--prod-bg);
}

.page-products .prod-section-head-inverse .section-meta {
  color: rgba(245, 240, 230, 0.6);
}

.page-products .prod-scenarios-layout {
  display: grid;
  gap: 1.75rem;
}

.page-products .prod-scenarios figure {
  margin: 0;
}

.page-products .prod-scenarios .image-frame figcaption {
  color: rgba(245, 240, 230, 0.65);
}

.page-products .prod-scenarios-cards {
  display: grid;
  gap: 1rem;
}

.page-products .prod-scenario-card {
  position: relative;
  padding: 1.25rem 1.25rem 1.25rem 1.75rem;
  background: rgba(245, 240, 230, 0.08);
  border-left: 3px solid var(--prod-green);
  transition: background 0.25s ease, transform 0.2s ease;
}

.page-products .prod-scenario-card:hover {
  background: rgba(245, 240, 230, 0.16);
  transform: translateX(3px);
}

.page-products .prod-scenario-code {
  font-family: var(--font-data);
  font-size: 0.72rem;
  color: var(--prod-green);
  letter-spacing: 0.12em;
}

.page-products .prod-scenario-title {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  margin: 0.2rem 0 0.45rem;
  color: var(--prod-bg);
}

.page-products .prod-scenario-text {
  margin: 0;
  color: rgba(245, 240, 230, 0.8);
  font-size: 0.92rem;
  max-width: 62ch;
}

/* ===== 版本对比 ===== */
.page-products .prod-versions {
  background: var(--prod-bg);
}

.page-products .prod-versions-layout {
  display: grid;
  gap: 1.75rem;
}

.page-products .prod-versions figure {
  margin: 0;
}

.page-products .prod-version-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--prod-line);
}

.page-products .prod-version-table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
  font-size: 0.88rem;
  background: rgba(255, 255, 255, 0.6);
}

.page-products .prod-version-table caption {
  caption-side: bottom;
  text-align: left;
  font-family: var(--font-data);
  font-size: 0.72rem;
  color: var(--prod-gray);
  padding-top: 0.5rem;
}

.page-products .prod-version-table th {
  background: var(--prod-dark);
  color: var(--prod-bg);
  font-family: var(--font-data);
  font-size: 0.75rem;
  text-align: left;
  padding: 0.8rem 0.9rem;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.page-products .prod-version-table td {
  border-bottom: 1px solid var(--prod-line);
  padding: 0.9rem;
}

.page-products .prod-version-row {
  transition: background 0.25s ease, outline 0.2s ease;
}

.page-products .prod-version-row .tag {
  transition: transform 0.2s ease;
}

.page-products .prod-version-row:hover {
  background: rgba(0, 230, 118, 0.07);
  outline: 1px solid var(--prod-green);
  outline-offset: -1px;
}

.page-products .prod-version-row:hover .tag {
  transform: scale(1.08);
}

.page-products .prod-version-v3 {
  background: rgba(10, 42, 74, 0.05);
}

.page-products .prod-version-v3:hover {
  background: rgba(0, 230, 118, 0.1);
}

.page-products .prod-version-note {
  margin-top: 1.5rem;
  padding: 1rem 1.25rem;
  border-left: 3px solid var(--prod-gold);
  background: rgba(255, 179, 0, 0.08);
}

.page-products .prod-version-note p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--prod-gray);
  max-width: 88ch;
}

.page-products .prod-version-note .tag {
  margin-right: 0.5rem;
}

/* ===== 下一步 ===== */
.page-products .prod-next {
  background: var(--prod-dark);
  color: var(--prod-bg);
  border-top: 4px solid var(--prod-gold);
}

.page-products .prod-next-inner {
  display: grid;
  gap: 1rem;
}

.page-products .prod-next-code {
  font-family: var(--font-data);
  color: var(--prod-green);
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  margin: 0;
}

.page-products .prod-next-title {
  font-family: var(--font-heading);
  font-size: clamp(1.4rem, 3vw, 2rem);
  margin: 0;
  color: var(--prod-bg);
}

.page-products .prod-next-text {
  max-width: 60ch;
  margin: 0;
  color: rgba(245, 240, 230, 0.8);
}

.page-products .prod-next-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.page-products .prod-next-links .btn-ghost {
  border-color: rgba(245, 240, 230, 0.45);
  color: var(--prod-bg);
}

.page-products .prod-next-links .btn-ghost:hover {
  border-color: var(--prod-bg);
  background: rgba(245, 240, 230, 0.1);
}

/* ===== 响应式 ===== */
@media (min-width: 900px) {
  .page-products .prod-hero-layout {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 3rem;
  }

  .page-products .prod-features-grid {
    grid-template-columns: 240px 1fr;
    gap: 3rem;
    align-items: start;
  }

  .page-products .prod-feature-index {
    position: sticky;
    top: 76px;
  }

  .page-products .prod-coverage-stats {
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
  }

  .page-products .prod-coverage-visuals {
    grid-template-columns: 1.2fr 1fr;
    align-items: start;
  }

  .page-products .prod-scenarios-layout {
    grid-template-columns: 0.9fr 1.1fr;
    gap: 2.5rem;
    align-items: center;
  }

  .page-products .prod-scenarios-cards {
    gap: 1.25rem;
  }

  .page-products .prod-versions-layout {
    grid-template-columns: 0.85fr 1.15fr;
    gap: 2.5rem;
    align-items: start;
  }

  .page-products .prod-coverage-visuals .image-frame-4-3 {
    max-width: 640px;
  }

  .page-products .prod-scenario-visual {
    max-width: 520px;
  }

  .page-products .prod-version-visual {
    max-width: 460px;
  }
}

@media (min-width: 1200px) {
  .page-products .prod-hero {
    padding-block: 3rem 3.5rem;
  }

  .page-products .prod-section-inner {
    padding-inline: 2rem;
  }
}