.page-products {
  --pp-gap: 1.25rem;
  --pp-gap-lg: 2.5rem;
  scroll-behavior: smooth;
}

.page-products .products-shell {
  display: block;
  padding: 1.5rem 1rem 3rem;
}

.page-products .products-content {
  min-width: 0;
}

/* ===== 左侧技能树 ===== */
.page-products .products-rail {
  margin-bottom: 2rem;
}

.page-products .products-rail__brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.page-products .products-rail__logo {
  position: relative;
  flex: 0 0 auto;
  width: 2.5rem;
  height: 2.5rem;
  background: linear-gradient(135deg, var(--c-bg-2) 0 45%, var(--c-accent) 45% 55%, var(--c-bg-2) 55%);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

.page-products .products-rail__logo::after {
  content: "";
  position: absolute;
  inset: 0.5rem;
  background: linear-gradient(135deg, var(--c-bg-3) 45%, var(--c-accent-3) 55%);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

.page-products .products-rail__brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.3;
}

.page-products .products-rail__brand-text strong {
  font-family: var(--font-head);
  font-size: 1rem;
  letter-spacing: 0.04em;
}

.page-products .products-rail__brand-text span {
  font-family: var(--font-data);
  font-size: 0.6875rem;
  color: var(--c-text-dim);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.page-products .products-rail__label {
  position: relative;
  margin: 0 0 0.75rem;
  padding-left: 1rem;
  font-family: var(--font-data);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  color: var(--c-accent);
  text-transform: uppercase;
}

.page-products .products-rail__label::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 0.5rem;
  height: 2px;
  background: var(--c-accent);
  transform: translateY(-50%);
}

.page-products .products-tree__list {
  display: flex;
  gap: 0.5rem;
  margin: 0;
  padding: 0 0 0.5rem;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-products .products-tree__item {
  flex: 0 0 auto;
}

.page-products .products-tree__link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.875rem;
  background: var(--c-bg-2);
  border: 1px solid var(--c-border);
  color: var(--c-text-dim);
  font-family: var(--font-data);
  font-size: 0.75rem;
  white-space: nowrap;
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-products .products-tree__link:hover,
.page-products .products-tree__link:focus-visible {
  color: var(--c-accent);
  border-color: var(--c-accent);
  background: rgba(0, 255, 102, 0.08);
}

.page-products .products-tree__index {
  color: var(--c-accent);
  font-weight: 700;
  opacity: 0.8;
}

.page-products .products-rail__help {
  margin: 1rem 0 0;
  font-size: 0.8125rem;
  line-height: 1.6;
}

.page-products .products-rail__help a {
  color: var(--c-accent);
  text-decoration: none;
}

.page-products .products-rail__help a:hover,
.page-products .products-rail__help a:focus-visible {
  text-decoration: underline;
}

/* ===== 首屏 ===== */
.page-products .products-hero {
  position: relative;
  padding: 1.5rem 0 2.5rem;
  border-top: 1px solid var(--c-border);
}

.page-products .products-hero::before {
  content: "";
  position: absolute;
  top: -1px;
  right: 0;
  width: 40%;
  min-width: 5rem;
  height: 4px;
  background: linear-gradient(90deg, transparent, var(--c-accent));
  clip-path: polygon(0 0, 100% 0, 100% 100%, 12% 100%);
}

.page-products .products-hero__inner {
  position: relative;
  z-index: 1;
}

.page-products .products-hero__inner .chip-data {
  margin-bottom: 1rem;
}

.page-products .products-hero__sub {
  margin: 0.25rem 0 0;
  color: var(--c-text);
}

.page-products .products-hero__desc {
  max-width: 34rem;
  margin: 1rem 0 0;
  line-height: 1.8;
}

.page-products .products-hero__stats {
  margin-top: 1.5rem;
}

.page-products .products-hero__stats .data-rail__value {
  font-family: var(--font-data);
  font-size: 1.5rem;
  color: var(--c-accent);
}

.page-products .products-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.5rem;
}

.page-products .products-hero__actions .btn-panel {
  text-decoration: none;
  padding: 0.75rem 1.25rem;
}

/* ===== 区块通用 ===== */
.page-products .products-section {
  position: relative;
  border-top: 1px solid var(--c-border);
}

.page-products .products-section::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 4.5rem;
  height: 3px;
  background: var(--c-accent);
  clip-path: polygon(0 0, 100% 0, calc(100% - 1rem) 100%, 0 100%);
}

.page-products .products-section__lead {
  max-width: 42rem;
  margin: 0 0 1.5rem;
  line-height: 1.6;
}

.page-products .products-points {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
}

.page-products .products-points li {
  position: relative;
  padding: 0.375rem 0 0.375rem 1.5rem;
  color: var(--c-text-dim);
  font-size: 0.9375rem;
  line-height: 1.6;
}

.page-products .products-points__mark {
  position: absolute;
  left: 0;
  top: 0.85rem;
  width: 0.5rem;
  height: 0.5rem;
  background: var(--c-accent);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

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

.page-products figure {
  margin: 0;
}

.page-products figcaption {
  margin-top: 0.625rem;
  font-size: 0.8125rem;
}

/* ===== 01 功能概览 ===== */
.page-products .products-feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pp-gap);
}

.page-products .products-feature.panel-cut {
  position: relative;
  padding: 1.25rem;
  border-top: 3px solid var(--c-border);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .products-feature.panel-cut:hover,
.page-products .products-feature.panel-cut:focus-within {
  border-top-color: var(--c-accent);
  transform: translateY(-0.25rem);
}

.page-products .products-feature__num {
  position: absolute;
  top: 0.75rem;
  right: 0.875rem;
  font-family: var(--font-data);
  font-size: 0.75rem;
  color: var(--c-text-dim);
  opacity: 0.65;
}

.page-products .products-feature h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-head);
  font-size: 1.125rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.page-products .products-feature p {
  margin: 0 0 0.875rem;
  font-size: 0.875rem;
  line-height: 1.7;
}

.page-products .products-architecture {
  margin-top: 2rem;
  padding: 0 0.25rem;
}

.page-products .products-architecture img {
  width: 100%;
  max-height: 30rem;
  object-fit: cover;
}

/* ===== 02 平板升级版 ===== */
.page-products .products-tablet__text {
  padding-right: 0;
}

.page-products .products-tablet__figure {
  margin-top: 1.5rem;
}

.page-products .products-tablet__figure img {
  width: 100%;
  max-height: 24rem;
  object-fit: cover;
}

/* ===== 03 数据对照工具 ===== */
.page-products .products-compare__steps-list {
  display: flex;
  flex-direction: column;
  gap: var(--pp-gap);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .products-compare__step.panel-cut {
  position: relative;
  padding: 1.25rem 1.25rem 1.25rem 3.5rem;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .products-compare__step.panel-cut:hover,
.page-products .products-compare__step.panel-cut:focus-within {
  transform: translateX(0.25rem);
  border-color: var(--c-accent);
}

.page-products .products-compare__step-num {
  position: absolute;
  left: 1rem;
  top: 1.25rem;
  font-family: var(--font-data);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--c-accent);
}

.page-products .products-compare__step h3 {
  margin: 0 0 0.25rem;
  font-size: 1rem;
  font-family: var(--font-head);
  letter-spacing: 0.03em;
}

.page-products .products-compare__step p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.6;
}

.page-products .products-compare__figure {
  margin-top: 1.5rem;
}

.page-products .products-compare__figure img {
  width: 100%;
  max-height: 22rem;
  object-fit: cover;
}

.page-products .products-compare__note {
  margin-top: 1.5rem;
  padding: 1rem 1.25rem;
}

.page-products .products-compare__note p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.7;
}

/* ===== 04 红黄牌记录 ===== */
.page-products .products-cards__demo {
  padding: 1.25rem;
}

.page-products .products-cards__legend {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.page-products .products-cards__legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-family: var(--font-data);
  font-size: 0.75rem;
  color: var(--c-text-dim);
}

.page-products .products-cards__dot {
  display: inline-block;
  width: 0.75rem;
  height: 0.75rem;
  clip-path: polygon(25% 0, 100% 0, 75% 100%, 0 100%);
}

.page-products .products-cards__dot--yellow {
  background: #ffd400;
}

.page-products .products-cards__dot--red {
  background: var(--c-accent-2);
}

.page-products .products-cards__rows {
  border-top: 1px solid var(--c-border);
}

.page-products .products-cards__row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 0;
  border-bottom: 1px dashed var(--c-border);
}

.page-products .products-cards__team {
  font-family: var(--font-data);
  font-size: 0.875rem;
  color: var(--c-text);
}

.page-products .products-cards__stat {
  display: inline-block;
  padding: 0.25rem 0.5rem;
  font-family: var(--font-data);
  font-size: 0.75rem;
  font-weight: 700;
  clip-path: polygon(0.375rem 0, 100% 0, calc(100% - 0.375rem) 100%, 0 100%);
}

.page-products .products-cards__stat--yellow {
  background: #ffd400;
  color: #111;
}

.page-products .products-cards__stat--red {
  background: var(--c-accent-2);
  color: #fff;
}

.page-products .products-cards__text {
  margin-top: 1.5rem;
}

.page-products .products-cards__figure {
  margin-top: 1.5rem;
}

.page-products .products-cards__figure img {
  width: 100%;
  max-height: 22rem;
  object-fit: cover;
}

/* ===== 05 视频集锦 ===== */
.page-products .products-video__figure img {
  width: 100%;
  max-height: 20rem;
  object-fit: cover;
}

.page-products .products-video__text {
  margin-top: 1.25rem;
}

.page-products .products-video__text .btn-link {
  display: inline-block;
  margin-top: 1rem;
}

/* ===== 06 版本演进 ===== */
.page-products .products-versions__timeline {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--pp-gap);
}

.page-products .products-versions__timeline::before {
  content: "";
  position: absolute;
  left: 0.5rem;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 2px;
  background: linear-gradient(180deg, var(--c-accent), var(--c-border) 60%, transparent);
}

.page-products .products-versions__item {
  position: relative;
  margin-left: 1.5rem;
  padding: 1.25rem;
}

.page-products .products-versions__item::before {
  content: "";
  position: absolute;
  left: -1.5rem;
  top: 1.375rem;
  width: 0.625rem;
  height: 0.625rem;
  background: var(--c-accent);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

.page-products .products-versions__item h3 {
  margin: 0.5rem 0 0.375rem;
  font-family: var(--font-head);
  font-size: 1.0625rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.page-products .products-versions__item p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.6;
}

/* ===== 07 使用场景 ===== */
.page-products .products-scenarios__card {
  padding: 1.25rem;
  border-top: 3px solid var(--c-border);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .products-scenarios__card:hover,
.page-products .products-scenarios__card:focus-within {
  border-top-color: var(--c-accent);
  transform: translateY(-0.25rem);
}

.page-products .products-scenarios__card .chip-data {
  margin-bottom: 0.75rem;
}

.page-products .products-scenarios__card h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-head);
  font-size: 1rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.page-products .products-scenarios__card p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.7;
}

.page-products .products-scenarios__card a {
  color: var(--c-accent);
  text-decoration: none;
}

.page-products .products-scenarios__card a:hover,
.page-products .products-scenarios__card a:focus-visible {
  text-decoration: underline;
}

/* ===== 桌面端 ===== */
@media (min-width: 1080px) {
  .page-products .products-shell {
    display: grid;
    grid-template-columns: 290px minmax(0, 1fr);
    gap: 2.5rem;
    align-items: start;
    padding: 2rem 1.5rem 4rem;
  }

  .page-products .products-rail {
    position: sticky;
    top: 2rem;
    z-index: 5;
    margin-bottom: 0;
  }

  .page-products .products-tree__list {
    display: block;
    position: relative;
    padding-left: 0;
    overflow: visible;
  }

  .page-products .products-tree__list::before {
    content: "";
    position: absolute;
    left: 1.05rem;
    top: 0.75rem;
    bottom: 0.75rem;
    width: 2px;
    background: linear-gradient(180deg, var(--c-accent), var(--c-border) 60%, transparent);
  }

  .page-products .products-tree__item {
    margin-bottom: 0.25rem;
  }

  .page-products .products-tree__link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.5rem 0.75rem;
    background: transparent;
    border: 0;
    font-family: var(--font-body);
    font-size: 0.9375rem;
    white-space: normal;
    text-align: left;
  }

  .page-products .products-tree__link::before {
    content: "";
    flex: 0 0 auto;
    width: 0.625rem;
    height: 0.625rem;
    border: 2px solid var(--c-border);
    background: var(--c-bg);
    transform: rotate(45deg);
    transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
  }

  .page-products .products-tree__link:hover,
  .page-products .products-tree__link:focus-visible {
    background: rgba(0, 255, 102, 0.07);
    color: var(--c-text);
  }

  .page-products .products-tree__link:hover::before,
  .page-products .products-tree__link:focus-visible::before {
    background: var(--c-accent);
    border-color: var(--c-accent);
  }

  .page-products .products-tree__title {
    line-height: 1.35;
  }

  .page-products .products-rail__help {
    margin-top: 2rem;
    padding-left: 1.25rem;
  }

  .page-products .products-hero {
    padding: 2rem 0 3rem;
  }

  .page-products .products-hero__inner {
    max-width: 42rem;
  }

  .page-products .products-feature-grid {
    grid-template-columns: repeat(12, 1fr);
  }

  .page-products .products-feature.panel-cut {
    grid-column: span 4;
  }

  .page-products .products-feature.panel-cut:nth-child(even) {
    transform: translateY(0.75rem);
  }

  .page-products .products-feature.panel-cut:nth-child(even):hover,
  .page-products .products-feature.panel-cut:nth-child(even):focus-within {
    transform: translateY(0.25rem);
  }

  .page-products .products-feature.panel-cut:nth-child(5) {
    grid-column: span 4;
  }

  .page-products .products-feature.panel-cut:nth-child(6) {
    grid-column: span 4;
  }

  .page-products .products-tablet__inner,
  .page-products .products-compare__layout,
  .page-products .products-cards__layout,
  .page-products .products-video__layout {
    align-items: center;
  }

  .page-products .products-tablet__figure,
  .page-products .products-compare__figure,
  .page-products .products-video__figure {
    margin-top: 0;
  }

  .page-products .products-tablet__figure img,
  .page-products .products-compare__figure img {
    max-height: 22rem;
  }

  .page-products .products-cards__text {
    margin-top: 0;
  }

  .page-products .products-video__text {
    margin-top: 0;
  }

  .page-products .products-scenarios__card:nth-child(3n + 2) {
    transform: translateY(0.5rem);
  }

  .page-products .products-scenarios__card:nth-child(3n + 2):hover,
  .page-products .products-scenarios__card:nth-child(3n + 2):focus-within {
    transform: translateY(0.125rem);
  }
}