.page-products {
  background: var(--color-bg);
  color: var(--color-light);
  overflow-x: hidden;
}

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

.page-products section[id] {
  scroll-margin-top: calc(var(--header-h) + 1rem);
}

.page-products a {
  color: var(--color-electric);
  text-underline-offset: 0.15em;
}

.page-products .breadcrumb {
  padding: var(--space-3) var(--space-4) 0;
}

.page-products .product-hero {
  padding: var(--space-6) var(--space-4) var(--space-5);
  position: relative;
}

.page-products .product-hero__rule {
  display: block;
  width: 72px;
  height: 4px;
  margin-bottom: var(--space-4);
  background: linear-gradient(90deg, var(--color-electric), var(--color-neon));
  clip-path: polygon(0 0, 100% 0, calc(100% - 6px) 100%, 0 100%);
}

.page-products .product-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-5);
}

.page-products .product-hero__title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: var(--space-2) 0 var(--space-3);
}

.page-products .product-hero__lead {
  color: var(--color-muted);
  max-width: 62ch;
  line-height: 1.75;
}

.page-products .product-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.page-products .product-hero__visual img {
  width: 100%;
  height: auto;
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
}

.page-products .product-stats-section {
  padding: var(--space-4) var(--space-4);
  background: var(--color-bg-alt);
  border-block: 1px solid var(--color-line);
}

.page-products .product-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--color-line);
  border: 1px solid var(--color-line);
}

.page-products .product-stats__item {
  background: var(--color-bg-alt);
  padding: var(--space-4) var(--space-3);
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  min-height: 104px;
}

.page-products .product-stats__num {
  font-family: var(--font-data);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--color-electric);
}

.page-products .product-stats__label {
  color: var(--color-muted);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
}

.page-products .product-tabs-section {
  padding: var(--space-6) var(--space-4);
}

.page-products .product-tabs__input {
  position: absolute;
  width: 0;
  height: 0;
  opacity: 0;
  pointer-events: none;
}

.page-products .product-tabs__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: var(--space-3);
}

.page-products .product-tabs__label {
  flex: 1 1 42%;
  display: inline-block;
  padding: 0.75rem 1rem;
  font-family: var(--font-heading);
  font-size: 0.78rem;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  cursor: pointer;
  background: var(--color-surface);
  color: var(--color-muted);
  border: 1px solid var(--color-line);
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-products .product-tabs__label:hover {
  border-color: var(--color-electric);
  color: var(--color-electric);
}

.page-products #tab-data:checked ~ .product-tabs__nav label[for="tab-data"],
.page-products #tab-note:checked ~ .product-tabs__nav label[for="tab-note"],
.page-products #tab-history:checked ~ .product-tabs__nav label[for="tab-history"],
.page-products #tab-mark:checked ~ .product-tabs__nav label[for="tab-mark"] {
  background: var(--color-electric);
  border-color: var(--color-electric);
  color: var(--color-bg);
}

.page-products .product-tabs__panels {
  position: relative;
}

.page-products .product-tabs__panel {
  display: none;
  padding: var(--space-4);
  background: var(--color-surface);
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
}

.page-products .product-tabs__panel--data,
.page-products .product-tabs__panel--note,
.page-products .product-tabs__panel--history,
.page-products .product-tabs__panel--mark {
  animation: page-products-tab-in 0.3s ease both;
}

.page-products #tab-data:checked ~ .product-tabs__panels .product-tabs__panel--data,
.page-products #tab-note:checked ~ .product-tabs__panels .product-tabs__panel--note,
.page-products #tab-history:checked ~ .product-tabs__panels .product-tabs__panel--history,
.page-products #tab-mark:checked ~ .product-tabs__panels .product-tabs__panel--mark {
  display: block;
}

.page-products .product-tabs__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4);
}

.page-products .product-tabs__panel h3 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  line-height: 1.3;
  margin: 0 0 0.5rem;
}

.page-products .product-tabs__panel p {
  color: var(--color-muted);
  line-height: 1.7;
}

.page-products .product-tabs__stat {
  background: var(--color-bg-alt);
  padding: var(--space-4);
  border-left: 2px solid var(--color-neon);
  color: var(--color-light);
  margin-bottom: var(--space-3);
}

.page-products .product-tabs__stat-label {
  display: block;
  font-family: var(--font-data);
  font-size: 0.72rem;
  color: var(--color-neon);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 0.25rem;
}

.page-products .product-tabs__stat-value {
  display: block;
  font-family: var(--font-data);
  font-size: 1.4rem;
  color: var(--color-electric);
  margin-bottom: 0.3rem;
}

.page-products .product-tabs__stat p {
  color: var(--color-muted);
  font-size: 0.85rem;
}

.page-products .product-data-section {
  padding: var(--space-7) var(--space-4);
}

.page-products .product-data-section__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-5);
}

.page-products .product-data-section h2,
.page-products .product-note-section h2,
.page-products .product-history-section h2,
.page-products .product-bookmark-section h2,
.page-products .product-version-section h2,
.page-products .product-cta h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.6rem, 3vw, 2.5rem);
  line-height: 1.12;
  margin: var(--space-2) 0 var(--space-3);
}

.page-products .product-data-section__content p,
.page-products .product-history-section__content > p,
.page-products .product-bookmark-section__content > p {
  color: var(--color-muted);
  line-height: 1.75;
}

.page-products .product-data-section__content .evidence-list,
.page-products .product-history-section__content .evidence-list,
.page-products .product-bookmark-section__content .evidence-list,
.page-products .product-tabs__panel .evidence-list {
  margin-top: var(--space-3);
}

.page-products .product-data-section__visual {
  position: relative;
}

.page-products .product-data-section__visual img {
  width: 100%;
  height: auto;
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
}

.page-products .product-data-section__floating {
  display: inline-flex;
  flex-direction: column;
  margin-top: var(--space-3);
  background: var(--color-neon);
  color: var(--color-bg);
  font-family: var(--font-data);
  font-size: 0.78rem;
  line-height: 1.3;
  padding: 0.55rem 0.8rem;
  clip-path: polygon(4px 0, 100% 0, 100% calc(100% - 4px), calc(100% - 4px) 100%, 0 100%, 0 4px);
}

.page-products .product-note-section {
  padding: var(--space-7) var(--space-4);
}

.page-products .product-note-section__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-5);
}

.page-products .product-note-section__visual img {
  width: 100%;
  height: auto;
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
}

.page-products .product-note-section__cards {
  margin-top: var(--space-4);
}

.page-products .product-note-section__card {
  background: rgba(10, 14, 26, 0.45);
  padding: var(--space-4);
  border-left: 2px solid var(--color-orange);
}

.page-products .product-note-section__card-index {
  font-family: var(--font-data);
  font-size: 0.8rem;
  color: var(--color-orange);
}

.page-products .product-note-section__card h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  line-height: 1.4;
  margin: var(--space-2) 0;
}

.page-products .product-note-section__card p {
  color: rgba(232, 232, 232, 0.86);
  font-size: 0.9rem;
  line-height: 1.6;
}

.page-products .product-note-section__footnote {
  margin-top: var(--space-4);
  font-size: 0.9rem;
  color: rgba(232, 232, 232, 0.78);
}

.page-products .product-history-section {
  padding: var(--space-7) var(--space-4);
  background: linear-gradient(125deg, var(--color-bg) 0%, #160C33 70%, var(--color-indigo) 130%);
}

.page-products .product-history-section__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-5);
}

.page-products .product-steps {
  list-style: none;
  margin: var(--space-4) 0 0;
  padding: 0;
}

.page-products .product-steps__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
  color: var(--color-muted);
  line-height: 1.6;
}

.page-products .product-steps__num {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  background: var(--color-electric);
  color: var(--color-bg);
  font-family: var(--font-data);
  font-size: 0.85rem;
  font-weight: 700;
  clip-path: polygon(4px 0, 100% 0, 100% calc(100% - 4px), calc(100% - 4px) 100%, 0 100%, 0 4px);
}

.page-products .product-history-section__tip {
  margin-top: var(--space-4);
  font-size: 0.9rem;
  color: var(--color-electric);
  border-left: 2px solid var(--color-electric);
  padding-left: var(--space-3);
  line-height: 1.6;
}

.page-products .product-compare {
  background: var(--color-surface);
  padding: var(--space-3);
  border: 1px solid var(--color-line);
}

.page-products .product-compare__input {
  position: absolute;
  width: 0;
  height: 0;
  opacity: 0;
  pointer-events: none;
}

.page-products .product-compare__viewer {
  position: relative;
  overflow: hidden;
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
}

.page-products .product-compare__base {
  display: block;
  width: 100%;
  height: auto;
}

.page-products .product-compare__diff {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
  background: radial-gradient(ellipse at 70% 40%, rgba(57, 255, 20, 0.16), transparent 55%);
}

.page-products .product-compare__diff-mark {
  position: absolute;
  right: 16%;
  top: 24%;
  width: 20%;
  height: 26%;
  border: 2px solid var(--color-neon);
  box-shadow: 0 0 14px rgba(57, 255, 20, 0.5);
  animation: page-products-diff-pulse 2s ease-in-out infinite;
}

.page-products .product-compare__diff-label {
  position: absolute;
  left: 10%;
  bottom: 16%;
  background: var(--color-neon);
  color: var(--color-bg);
  font-family: var(--font-data);
  font-size: 0.8rem;
  line-height: 1.2;
  padding: 0.4rem 0.6rem;
  clip-path: polygon(4px 0, 100% 0, 100% calc(100% - 4px), calc(100% - 4px) 100%, 0 100%, 0 4px);
}

.page-products .product-compare__input:checked ~ .product-compare__viewer .product-compare__diff {
  opacity: 1;
}

.page-products .product-compare__toggle {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: var(--space-3);
  padding: 0.75rem 1rem;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-line);
  cursor: pointer;
  transition: border-color 0.2s ease;
  user-select: none;
}

.page-products .product-compare__toggle:hover {
  border-color: var(--color-electric);
}

.page-products .product-compare__input:focus-visible ~ .product-compare__toggle {
  outline: 2px solid var(--color-electric);
  outline-offset: 2px;
}

.page-products .product-compare__switch {
  position: relative;
  display: block;
  width: 42px;
  height: 22px;
  border-radius: 999px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  flex-shrink: 0;
  transition: border-color 0.25s ease;
}

.page-products .product-compare__switch-thumb {
  position: absolute;
  left: 2px;
  top: 2px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-muted);
  transition: left 0.25s ease, background 0.25s ease;
}

.page-products .product-compare__toggle-text {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  color: var(--color-muted);
}

.page-products .product-compare__input:not(:checked) ~ .product-compare__toggle .product-compare__toggle-text::after {
  content: "查看差异";
}

.page-products .product-compare__input:checked ~ .product-compare__toggle .product-compare__toggle-text::after {
  content: "隐藏差异";
}

.page-products .product-compare__input:checked ~ .product-compare__toggle .product-compare__switch {
  border-color: var(--color-neon);
}

.page-products .product-compare__input:checked ~ .product-compare__toggle .product-compare__switch-thumb {
  left: 20px;
  background: var(--color-neon);
}

.page-products .product-bookmark-section {
  padding: var(--space-7) var(--space-4);
}

.page-products .product-bookmark-section__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-5);
}

.page-products .product-bookmark-section__visual img {
  width: 100%;
  max-width: 320px;
  height: auto;
  clip-path: polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));
}

.page-products .product-bookmark-section__prompt {
  margin-top: var(--space-4);
  background: rgba(10, 14, 26, 0.5);
  border-left: 3px solid var(--color-orange);
}

.page-products .product-bookmark-section__prompt span {
  font-family: var(--font-data);
  font-size: 0.72rem;
  color: var(--color-orange);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  display: block;
  margin-bottom: 0.35rem;
}

.page-products .product-bookmark-section__prompt p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.6;
  color: rgba(232, 232, 232, 0.88);
}

.page-products .product-version-section {
  padding: var(--space-7) var(--space-4);
}

.page-products .product-version-section__intro {
  color: var(--color-muted);
  max-width: 60ch;
  line-height: 1.7;
  margin: 0 0 var(--space-5);
}

.page-products .product-version {
  border-left: 2px solid var(--color-line);
  padding-left: var(--space-4);
}

.page-products .product-version__item {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  padding: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-left: 3px solid var(--color-electric);
}

.page-products .product-version__item::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--space-4) - 8px);
  top: 1.4rem;
  width: 10px;
  height: 10px;
  background: var(--color-neon);
  transform: rotate(45deg);
}

.page-products .product-version__head {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.page-products .product-version__tag {
  display: inline-block;
  align-self: flex-start;
  background: rgba(0, 229, 255, 0.12);
  color: var(--color-electric);
  font-family: var(--font-data);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  padding: 0.2rem 0.5rem;
  border: 1px solid rgba(0, 229, 255, 0.35);
}

.page-products .product-version__num {
  font-family: var(--font-data);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-light);
}

.page-products .product-version__body h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  line-height: 1.4;
  margin: 0 0 0.35rem;
}

.page-products .product-version__body p {
  color: var(--color-muted);
  font-size: 0.9rem;
  line-height: 1.65;
  margin: 0;
}

.page-products .product-cta {
  padding: var(--space-6) var(--space-4);
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-line);
}

.page-products .product-cta__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.page-products .product-cta__text p {
  color: var(--color-muted);
  line-height: 1.7;
  margin: 0;
}

.page-products .product-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

@keyframes page-products-tab-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes page-products-diff-pulse {
  0%, 100% {
    box-shadow: 0 0 10px rgba(57, 255, 20, 0.3);
  }
  50% {
    box-shadow: 0 0 26px rgba(57, 255, 20, 0.75);
  }
}

@media (min-width: 861px) {
  .page-products .breadcrumb {
    padding-left: var(--space-5);
    padding-right: var(--space-5);
  }

  .page-products .product-hero__inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: var(--space-6);
    align-items: center;
  }

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

  .page-products .product-stats__item {
    min-height: 124px;
    padding: var(--space-5) var(--space-4);
  }

  .page-products .product-tabs__label {
    flex: 0 0 auto;
  }

  .page-products .product-tabs__inner {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.6fr);
    gap: var(--space-5);
  }

  .page-products .product-data-section__layout,
  .page-products .product-history-section__layout {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    gap: var(--space-6);
    align-items: center;
  }

  .page-products .product-note-section__layout {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: var(--space-6);
    align-items: center;
  }

  .page-products .product-bookmark-section__layout {
    grid-template-columns: minmax(0, 3fr) minmax(0, 7fr);
    gap: var(--space-6);
    align-items: center;
  }

  .page-products .product-bookmark-section__visual img {
    max-width: 300px;
  }

  .page-products .product-version__item {
    grid-template-columns: 180px minmax(0, 1fr);
    gap: var(--space-4);
  }

  .page-products .product-cta__inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}