.page-products {
  --products-hero-bg: var(--color-bg-primary);
  --products-card-bg: linear-gradient(135deg, rgba(30, 78, 123, 0.85) 0%, rgba(18, 54, 92, 0.92) 100%);
  --products-card-bg-alt: linear-gradient(135deg, rgba(18, 54, 92, 0.9) 0%, rgba(11, 29, 51, 0.95) 100%);
  --products-chip-bg: rgba(57, 255, 20, 0.12);
  --products-slash-color: rgba(249, 115, 22, 0.5);
  position: relative;
  background: var(--products-hero-bg);
  color: var(--color-text-body);
  font-family: var(--font-body);
  line-height: 1.7;
  overflow-x: clip;
}

.page-products a:focus-visible,
.page-products button:focus-visible {
  outline: 2px solid var(--color-data);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

.page-products .container {
  max-width: var(--content-max);
  margin-inline: auto;
  padding-inline: 20px;
}

.page-products__breadcrumb-wrap {
  padding-block: 18px 4px;
}

.page-products__hero {
  position: relative;
  padding-block: 32px 64px;
  background:
    radial-gradient(ellipse at 82% 18%, rgba(249, 115, 22, 0.14) 0%, transparent 55%),
    radial-gradient(ellipse at 16% 82%, rgba(57, 255, 20, 0.06) 0%, transparent 45%),
    var(--color-bg-primary);
}

.page-products__hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: center;
}

.page-products__hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  color: var(--color-accent-soft);
  writing-mode: horizontal-tb;
  margin-bottom: 16px;
}

.page-products__hero-kicker::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--color-accent);
  display: inline-block;
}

.page-products__hero h1 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 6vw, 3.6rem);
  line-height: 1.16;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
  max-width: 11em;
}

.page-products__hero-lead {
  font-size: 1rem;
  color: var(--color-text-body);
  opacity: 0.88;
  max-width: 34em;
  margin-bottom: 24px;
}

.page-products__hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.page-products__hero-facts {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.page-products__hero-facts i {
  width: 4px;
  height: 4px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
}

.page-products__hero-visual {
  position: relative;
}

.page-products__hero-visual img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transform: rotate(0.6deg);
}

.page-products__hero-slash {
  position: absolute;
  top: 28px;
  right: -12px;
  width: 112px;
  height: 48px;
  background: linear-gradient(115deg, transparent 45%, var(--products-slash-color) 46%, transparent 51%);
  pointer-events: none;
  z-index: 1;
}

.page-products__section-heading {
  margin-bottom: 40px;
}

.page-products__section-heading .section-heading__kicker {
  font-family: var(--font-mono);
  color: var(--color-accent-soft);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.page-products__section-heading .section-heading__title {
  font-family: var(--font-heading);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  line-height: 1.2;
  margin-block: 8px 10px;
}

.page-products__section-heading .section-heading__note {
  color: var(--color-text-muted);
  max-width: 38em;
}

/* 核心功能矩阵 */
.page-products__features {
  padding-block: 48px 68px;
}

.page-products__feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-products__feature-card {
  position: relative;
  border-radius: var(--radius-lg);
  background: var(--products-card-bg);
  padding: 28px 24px 24px;
  overflow: hidden;
  transform: rotate(-0.3deg);
  transition: transform var(--duration-base), box-shadow var(--duration-base);
}

.page-products__feature-card:nth-child(even) {
  transform: rotate(0.4deg);
}

.page-products__feature-card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 78px;
  height: 78px;
  background: linear-gradient(135deg, transparent 48%, rgba(249, 115, 22, 0.34) 49%, transparent 56%);
  border-radius: 0 var(--radius-lg) 0 40px;
  pointer-events: none;
}

.page-products__feature-card--accent {
  background: linear-gradient(135deg, rgba(249, 115, 22, 0.2) 0%, rgba(18, 54, 92, 0.88) 55%, rgba(11, 29, 51, 0.94) 100%);
}

.page-products__feature-card--warning::after {
  background: linear-gradient(135deg, transparent 48%, rgba(225, 29, 72, 0.28) 49%, transparent 56%);
}

.page-products__feature-card:hover {
  transform: translateY(-5px) rotate(0deg);
  box-shadow: var(--shadow-card);
}

.page-products__feature-index {
  position: absolute;
  top: 16px;
  right: 18px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: rgba(155, 176, 200, 0.65);
  z-index: 1;
}

.page-products__feature-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--color-bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent-soft);
  margin-bottom: 18px;
}

.page-products__feature-icon svg {
  width: 24px;
  height: 24px;
}

.page-products__feature-card h3 {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  line-height: 1.4;
  margin-bottom: 10px;
  letter-spacing: 0.01em;
}

.page-products__feature-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* 版本演进 */
.page-products__versions {
  position: relative;
  padding-block: 56px 72px;
  background:
    linear-gradient(135deg, rgba(18, 54, 92, 0.5) 0%, rgba(11, 29, 51, 0.2) 100%),
    var(--color-bg-primary);
}

.page-products__versions::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent) 0%, transparent 30%, transparent 100%);
}

.page-products__version-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  align-items: center;
}

.page-products__version-visual img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transform: rotate(-0.8deg);
}

.page-products__version-ladder {
  display: grid;
  gap: 22px;
}

.page-products__version-card {
  position: relative;
  border-radius: var(--radius-lg);
  background: var(--products-card-bg-alt);
  padding: 26px 26px 22px;
  border-left: 4px solid var(--color-border);
  transform: translateX(4px);
  transition: transform var(--duration-base), box-shadow var(--duration-base);
}

.page-products__version-card:hover {
  transform: translateX(0);
  box-shadow: var(--shadow-card);
}

.page-products__version-card--old {
  opacity: 0.82;
}

.page-products__version-card--current {
  border-left-color: var(--color-accent);
  transform: translateX(-4px);
}

.page-products__version-card--current:hover {
  transform: translateX(0);
}

.page-products__version-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  background: var(--products-chip-bg);
  color: var(--color-data);
  margin-bottom: 14px;
}

.page-products__version-card--old .page-products__version-tag {
  background: rgba(155, 176, 200, 0.14);
  color: var(--color-text-muted);
}

.page-products__version-card h3 {
  font-family: var(--font-heading);
  font-size: 1.18rem;
  line-height: 1.4;
  margin-bottom: 12px;
}

.page-products__version-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}

.page-products__version-card li {
  position: relative;
  padding-left: 20px;
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.page-products__version-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 7px;
  height: 7px;
  border-radius: 2px;
  background: var(--color-border);
  transform: rotate(45deg);
}

.page-products__version-card--current li::before {
  background: var(--color-accent);
}

/* 数据服务 */
.page-products__data {
  padding-block: 56px 72px;
  background: var(--color-bg-primary);
}

.page-products__data-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}

.page-products__data-gauges {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}

.page-products__gauge-card {
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--color-bg-card) 0%, var(--color-bg-secondary) 100%);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 18px;
  transition: transform var(--duration-base), box-shadow var(--duration-base);
}

.page-products__gauge-card:hover {
  transform: translateY(-3px) scale(1.01);
  box-shadow: var(--shadow-card);
}

.page-products__gauge-dial {
  position: relative;
  flex: 0 0 auto;
  width: 86px;
  height: 86px;
  border-radius: var(--radius-pill);
  background: radial-gradient(circle at center, var(--color-bg-secondary) 0%, var(--color-bg-primary) 100%);
  border: 2px solid rgba(57, 255, 20, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.page-products__gauge-dial::before {
  content: "";
  position: absolute;
  inset: 8px;
  border-radius: var(--radius-pill);
  background: var(--color-bg-primary);
}

.page-products__gauge-needle {
  position: absolute;
  bottom: 50%;
  left: 50%;
  width: 3px;
  height: 34px;
  background: var(--color-data);
  transform-origin: bottom center;
  transform: rotate(-24deg);
  border-radius: 4px;
  box-shadow: var(--shadow-glow);
  z-index: 1;
}

.page-products__gauge-needle--one {
  animation: productsNeedleSwing 5s ease-in-out infinite;
}

@keyframes productsNeedleSwing {
  0%, 78% { transform: rotate(-24deg); }
  85% { transform: rotate(16deg); }
  92%, 100% { transform: rotate(-24deg); }
}

.page-products__gauge-needle--two {
  transform: rotate(32deg);
}

.page-products__gauge-needle--three {
  transform: rotate(-10deg);
}

.page-products__gauge-value {
  position: relative;
  z-index: 2;
  font-family: var(--font-heading);
  font-size: 1.7rem;
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--color-text-body);
}

.page-products__gauge-card:first-child .page-products__gauge-value {
  animation: productsGaugeGlow 5s infinite;
}

@keyframes productsGaugeGlow {
  0%, 74% { text-shadow: 0 0 0 transparent; }
  80%, 90% { text-shadow: 0 0 14px rgba(57, 255, 20, 0.7); }
  96%, 100% { text-shadow: 0 0 0 transparent; }
}

.page-products__gauge-unit {
  font-size: 0.7rem;
  margin-left: 2px;
  color: var(--color-text-muted);
}

.page-products__gauge-title {
  font-family: var(--font-heading);
  font-size: 1rem;
  margin: 0 0 4px;
}

.page-products__gauge-status {
  font-size: 0.8rem;
  color: var(--color-data);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.page-products__gauge-status::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: var(--radius-pill);
  background: var(--color-data);
  box-shadow: var(--shadow-glow);
  animation: productsStatusBlink 2.4s infinite;
}

@keyframes productsStatusBlink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.page-products__data-panel {
  border-radius: var(--radius-lg);
  background: var(--color-bg-secondary);
  padding: 14px;
  display: grid;
  gap: 14px;
}

.page-products__data-panel img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
}

.page-products__data-copy {
  padding: 10px 8px 14px;
}

.page-products__data-copy h3 {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  margin-bottom: 10px;
}

.page-products__data-copy p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 12px;
}

.page-products__data-meta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-accent-soft);
}

/* 下载与收藏 */
.page-products__download {
  padding-block: 56px 80px;
  background: var(--color-bg-primary);
  position: relative;
}

.page-products__download-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}

.page-products__collect-block {
  display: grid;
  gap: 18px;
  align-items: center;
}

.page-products__collect-frame img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transform: rotate(0.5deg);
}

.page-products__collect-copy h3 {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  line-height: 1.4;
  margin-bottom: 12px;
}

.page-products__collect-copy p {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  max-width: 32em;
  margin-bottom: 18px;
}

.page-products__collect-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-products__access-block {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: center;
}

.page-products__qr-card {
  text-align: center;
  padding: 20px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(30, 78, 123, 0.55) 0%, rgba(18, 54, 92, 0.7) 100%);
}

.page-products__qr {
  position: relative;
  width: 130px;
  height: 130px;
  margin: 0 auto 14px;
  border-radius: 14px;
  background-color: var(--color-text-body);
  background-image:
    radial-gradient(circle at 30% 30%, rgba(11, 29, 51, 0.9) 3px, transparent 3.5px),
    radial-gradient(circle at 65% 42%, rgba(11, 29, 51, 0.75) 2.5px, transparent 3px),
    radial-gradient(circle at 22% 62%, rgba(11, 29, 51, 0.9) 3px, transparent 3.5px),
    radial-gradient(circle at 50% 75%, rgba(11, 29, 51, 0.8) 2.5px, transparent 3px),
    radial-gradient(circle at 82% 24%, rgba(11, 29, 51, 0.85) 2.5px, transparent 3px),
    radial-gradient(circle at 46% 18%, rgba(11, 29, 51, 0.75) 2px, transparent 2.5px),
    radial-gradient(circle at 76% 66%, rgba(11, 29, 51, 0.85) 2.5px, transparent 3px),
    radial-gradient(circle at 14% 38%, rgba(11, 29, 51, 0.75) 2px, transparent 2.5px),
    radial-gradient(circle at 90% 52%, rgba(11, 29, 51, 0.85) 3px, transparent 3.5px),
    radial-gradient(circle at 36% 88%, rgba(11, 29, 51, 0.75) 2.5px, transparent 3px);
  background-size: 34px 34px;
  background-position: 0 0;
  box-shadow: var(--shadow-card);
}

.page-products__qr::before,
.page-products__qr::after,
.page-products__qr-pin {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  background: var(--color-text-body);
  border: 4px solid var(--color-bg-primary);
  border-radius: 3px;
  z-index: 1;
}

.page-products__qr::before {
  top: 8px;
  left: 8px;
}

.page-products__qr::after {
  top: 8px;
  right: 8px;
}

.page-products__qr-pin {
  bottom: 8px;
  left: 8px;
}

.page-products__qr-caption {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.page-products__qr-note {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.page-products__mobile-visual img {
  display: block;
  width: 100%;
  max-width: 300px;
  height: auto;
  margin-inline: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  transform: rotate(0.8deg);
}

/* 平板断点 */
@media (min-width: 768px) {
  .page-products__feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-products__feature-card--wide {
    grid-column: span 2;
  }

  .page-products__data-gauges {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-products__data-panel {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }

  .page-products__collect-block {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }

  .page-products__access-block {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .page-products__version-card--old {
    transform: translateX(14px);
  }

  .page-products__version-card--current {
    transform: translateX(-14px);
  }

  .page-products__version-card--current:hover {
    transform: translateX(0);
  }
}

/* 桌面断点 */
@media (min-width: 1100px) {
  .page-products__hero-inner {
    grid-template-columns: 5fr 6fr;
    gap: 48px;
  }

  .page-products__hero-visual img {
    transform: rotate(1deg);
  }

  .page-products__feature-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-products__feature-card--wide {
    grid-column: span 2;
  }

  .page-products__version-layout {
    grid-template-columns: 1fr 1fr;
    gap: 56px;
  }

  .page-products__data-layout {
    grid-template-columns: 1.1fr 1fr;
    gap: 48px;
    align-items: center;
  }

  .page-products__download-layout {
    grid-template-columns: 1.15fr 0.85fr;
    gap: 56px;
    align-items: start;
  }

  .page-products__gauge-card {
    flex-direction: column;
    text-align: center;
    padding: 24px 16px;
  }

  .page-products__gauge-dial {
    width: 96px;
    height: 96px;
  }

  .page-products__gauge-needle {
    height: 38px;
  }
}

/* reduced motion */
@media (prefers-reduced-motion: reduce) {
  .page-products *,
  .page-products *::before,
  .page-products *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .page-products__feature-card,
  .page-products__version-card,
  .page-products__gauge-card {
    transform: none !important;
  }
}