.page-products {
  --prod-rail: 104px;
  --prod-edge: rgba(143, 169, 161, .20);
  --prod-band: rgba(43, 240, 200, .10);
}

.page-products .hf-breadcrumb {
  padding-top: clamp(16px, 2.4vw, 28px);
}

/* ---------- 首屏 ---------- */
.page-products .prod-hero {
  position: relative;
  overflow: hidden;
  padding-bottom: clamp(28px, 4vw, 48px);
  border-bottom: 1px solid var(--hf-line);
}

.page-products .prod-hero__band {
  position: absolute;
  top: -30%;
  right: -10%;
  width: min(760px, 74%);
  height: 170%;
  background: linear-gradient(142deg, rgba(43, 240, 200, .13), rgba(164, 91, 255, .07) 58%, transparent 88%);
  clip-path: polygon(34% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
  z-index: 0;
}

.page-products .prod-hero__arc {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 42%;
  height: 100%;
  background-image:
    linear-gradient(to right, rgba(43, 240, 200, .10) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(43, 240, 200, .07) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to left, rgba(0, 0, 0, .85), transparent 78%);
  pointer-events: none;
  z-index: 0;
}

.page-products .prod-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(32px, 5vw, 56px);
  padding: clamp(40px, 7vw, 92px) 0 clamp(12px, 2vw, 24px);
}

.page-products .prod-hero__eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 18px;
  font-family: var(--hf-font-mono);
  font-size: .75rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--hf-amber);
}

.page-products .prod-hero__rule {
  flex: 0 0 auto;
  width: clamp(24px, 6vw, 72px);
  height: 1px;
  background: var(--hf-line-2);
}

.page-products .prod-hero__title {
  margin: 0 0 22px;
  font-family: var(--hf-font-display);
  font-size: clamp(2.2rem, 6.2vw, 4.6rem);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -.01em;
  color: var(--hf-ink);
}

.page-products .prod-hero__title-accent {
  color: var(--hf-cyan);
}

.page-products .prod-hero__text {
  max-width: 38em;
  margin: 0;
  font-size: clamp(1rem, 1.1vw, 1.125rem);
  line-height: 1.75;
  color: var(--hf-dim);
}

.page-products .prod-facts {
  display: grid;
  gap: 18px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .prod-facts__item {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 12px 0;
  border-top: 1px solid var(--prod-edge);
}

.page-products .prod-facts__num {
  flex: 0 0 auto;
  min-width: 3.6em;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  line-height: 1;
  color: var(--hf-cyan);
}

.page-products .prod-facts__plus {
  color: var(--hf-amber);
}

.page-products .prod-facts__label {
  font-size: .875rem;
  line-height: 1.5;
  color: var(--hf-dim);
}

/* ---------- 索引条 ---------- */
.page-products .prod-index {
  border-bottom: 1px solid var(--hf-line);
  overflow-x: auto;
  scrollbar-width: none;
}

.page-products .prod-index::-webkit-scrollbar {
  display: none;
}

.page-products .prod-index__list {
  display: flex;
  gap: 0;
  margin: 0;
  padding: 0 clamp(20px, 4vw, 72px);
  list-style: none;
  white-space: nowrap;
}

.page-products .prod-index__list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  border-bottom: 2px solid transparent;
  font-size: .8125rem;
  color: var(--hf-dim);
  text-decoration: none;
  transition: color .18s var(--hf-ease), border-color .18s var(--hf-ease);
}

.page-products .prod-index__list a .hf-mono {
  font-size: .6875rem;
  letter-spacing: .1em;
  color: var(--hf-amber);
}

.page-products .prod-index__list a:hover,
.page-products .prod-index__list a:focus-visible {
  color: var(--hf-ink);
  border-bottom-color: var(--hf-line-2);
}

.page-products .prod-index__list a[aria-current="true"] {
  color: var(--hf-cyan);
  border-bottom-color: var(--hf-cyan);
}

/* ---------- 章节骨架 ---------- */
.page-products .prod-sec {
  padding: clamp(44px, 7vw, 88px) 0;
  border-bottom: 1px solid var(--prod-edge);
  scroll-margin-top: 96px;
}

.page-products .prod-sec--first {
  border-top: 1px solid var(--prod-edge);
}

.page-products .prod-sec__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-products .prod-sec__rail {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-top: 4px;
}

.page-products .prod-sec__num {
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--hf-amber);
}

.page-products .prod-sec__tag {
  font-family: var(--hf-font-mono);
  font-size: .6875rem;
  letter-spacing: .1em;
}

.page-products .prod-sec__title {
  margin: 0 0 16px;
  font-family: var(--hf-font-display);
  font-size: clamp(1.5rem, 3.2vw, 2.3rem);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -.005em;
  color: var(--hf-ink);
}

.page-products .prod-sec__lede {
  max-width: 40em;
  margin: 0 0 clamp(24px, 3vw, 36px);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--hf-dim);
}

.page-products .prod-sub {
  margin: 26px 0 10px;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--hf-ink);
}

.page-products .prod-sub:first-child {
  margin-top: 0;
}

.page-products .prod-note {
  max-width: 40em;
  margin: 16px 0 0;
  font-size: .875rem;
  line-height: 1.7;
  color: var(--hf-dim);
}

.page-products .prod-note--tail {
  margin-top: clamp(26px, 3vw, 40px);
}

.page-products .prod-link-btn {
  margin-top: 18px;
  text-decoration: none;
}

/* ---------- 模块清单 ---------- */
.page-products .prod-mod-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-bottom: 1px solid var(--prod-edge);
}

.page-products .prod-mod {
  display: grid;
  grid-template-columns: 2.6rem minmax(0, 1fr);
  gap: 3px 14px;
  padding: 16px 0;
  border-top: 1px solid var(--prod-edge);
  transition: border-color .18s var(--hf-ease);
}

.page-products .prod-mod:hover {
  border-top-color: var(--hf-line-2);
}

.page-products .prod-mod__idx {
  grid-row: span 2;
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--hf-amber);
}

.page-products .prod-mod__name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--hf-ink);
}

.page-products .prod-mod__desc {
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--hf-dim);
}

/* ---------- 图片 ---------- */
.page-products .prod-figure {
  margin: clamp(26px, 3.5vw, 42px) 0 0;
}

.page-products .prod-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--hf-line);
  background: var(--hf-stand);
  border-radius: var(--hf-r);
}

.page-products .prod-figure figcaption {
  margin-top: 10px;
  font-size: .8125rem;
  line-height: 1.65;
  color: var(--hf-dim);
}

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

.page-products .prod-figure--rail img {
  aspect-ratio: 4 / 3;
}

.page-products .prod-figure--side img {
  aspect-ratio: 3 / 2;
}

.page-products .prod-figure--wide img {
  aspect-ratio: 16 / 9;
}

/* ---------- 问题 / 修复 / 验证 ---------- */
.page-products .prod-steps {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .prod-steps__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 18px 0;
  border-top: 1px solid var(--prod-edge);
}

.page-products .prod-steps__item:last-child {
  border-bottom: 1px solid var(--prod-edge);
}

.page-products .prod-steps__key {
  display: inline-block;
  justify-self: start;
  padding: 4px 10px;
  border: 1px solid var(--hf-line-2);
  border-radius: var(--hf-r);
  font-size: .6875rem;
  letter-spacing: .12em;
  color: var(--hf-cyan);
}

.page-products .prod-steps__text {
  margin: 0;
  max-width: 40em;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--hf-ink);
}

/* ---------- 左右分栏 ---------- */
.page-products .prod-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 40px);
}

.page-products .prod-split__text p {
  max-width: 40em;
  margin: 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--hf-dim);
}

.page-products .prod-fields {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--hf-line-soft);
}

.page-products .prod-fields li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--hf-line-soft);
  font-size: .9375rem;
  color: var(--hf-ink);
}

.page-products .prod-fields .hf-mono {
  font-size: .6875rem;
  letter-spacing: .1em;
  color: var(--hf-amber);
}

/* ---------- 入口对照 ---------- */
.page-products .prod-compare {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
  border: 1px solid var(--hf-line-soft);
  border-radius: var(--hf-r);
  overflow: hidden;
}

.page-products .prod-compare__col {
  padding: 22px 20px;
  background: var(--hf-stand);
}

.page-products .prod-compare__col--old {
  border-bottom: 1px solid var(--hf-line-soft);
}

.page-products .prod-compare__col--new {
  background: linear-gradient(180deg, rgba(43, 240, 200, .07), transparent 70%), var(--hf-stand);
  box-shadow: inset 2px 0 0 var(--hf-cyan);
}

.page-products .prod-compare__head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 14px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--hf-ink);
}

.page-products .prod-compare__head .hf-mono {
  font-size: .6875rem;
  letter-spacing: .12em;
  color: var(--hf-amber);
}

.page-products .prod-compare__col--new .prod-compare__head .hf-mono {
  color: var(--hf-cyan);
}

.page-products .prod-compare__list {
  margin: 0;
  padding: 0 0 0 1.1em;
  list-style: none;
}

.page-products .prod-compare__list li {
  position: relative;
  padding: 4px 0;
  font-size: .9375rem;
  line-height: 1.7;
  color: var(--hf-dim);
}

.page-products .prod-compare__list li::before {
  content: "";
  position: absolute;
  left: -1.1em;
  top: .85em;
  width: 6px;
  height: 1px;
  background: var(--hf-line-2);
}

.page-products .prod-compare__col--new .prod-compare__list li {
  color: var(--hf-ink);
}

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

.page-products .prod-tips li {
  display: flex;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px solid var(--prod-edge);
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--hf-ink);
}

.page-products .prod-tips__num {
  flex: 0 0 auto;
  padding-top: .2em;
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--hf-orange);
}

/* ---------- 版本表 ---------- */
.page-products .prod-table-wrap {
  margin-top: clamp(26px, 3.5vw, 40px);
}

.page-products .prod-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .9375rem;
}

.page-products .prod-table__caption {
  caption-side: top;
  padding-bottom: 12px;
  text-align: left;
  font-family: var(--hf-font-mono);
  font-size: .6875rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--hf-amber);
}

.page-products .prod-table thead th {
  padding: 10px 12px;
  text-align: left;
  font-family: var(--hf-font-mono);
  font-size: .6875rem;
  font-weight: 500;
  letter-spacing: .1em;
  color: var(--hf-cyan);
  background: var(--hf-turf);
  border: 1px solid var(--hf-line);
}

.page-products .prod-table tbody th {
  padding: 10px 12px;
  text-align: left;
  font-weight: 600;
  color: var(--hf-ink);
  border: 1px solid var(--hf-line-soft);
}

.page-products .prod-table tbody td {
  padding: 10px 12px;
  color: var(--hf-dim);
  border: 1px solid var(--hf-line-soft);
  font-variant-numeric: tabular-nums;
}

.page-products .prod-mark {
  display: inline-block;
  margin-right: 6px;
  font-family: var(--hf-font-mono);
}

.page-products .prod-mark--same {
  color: var(--hf-cyan);
}

.page-products .prod-mark--diff {
  color: var(--hf-dim);
}

.page-products .prod-mark--fixed {
  color: var(--hf-amber);
}

.page-products .prod-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
  font-size: .8125rem;
  color: var(--hf-dim);
}

/* ---------- 手风琴微调 ---------- */
.page-products .prod-acc {
  margin-top: clamp(24px, 3vw, 36px);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-products .prod-hero__inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-products .prod-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0;
  }

  .page-products .prod-facts__item {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding: 14px 18px 14px 0;
    border-top: 0;
    border-left: 1px solid var(--prod-edge);
    padding-left: 18px;
  }

  .page-products .prod-facts__item:first-child {
    border-left: 0;
    padding-left: 0;
  }

  .page-products .prod-mod {
    grid-template-columns: 2.6rem minmax(140px, 190px) minmax(0, 1fr);
    align-items: baseline;
    gap: 0 18px;
  }

  .page-products .prod-mod__idx {
    grid-row: auto;
  }

  .page-products .prod-mod__desc {
    margin: 0;
  }

  .page-products .prod-steps__item {
    grid-template-columns: 6.5rem minmax(0, 1fr);
    align-items: start;
    gap: 22px;
  }

  .page-products .prod-fields {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-top: 0;
  }

  .page-products .prod-fields li {
    border-bottom: 0;
    border-top: 1px solid var(--hf-line-soft);
    padding: 10px 14px 10px 0;
  }

  .page-products .prod-compare {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0;
  }

  .page-products .prod-compare__col--old {
    border-bottom: 0;
    border-right: 1px solid var(--hf-line-soft);
  }
}

@media (min-width: 900px) {
  .page-products .prod-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: end;
    gap: clamp(40px, 6vw, 88px);
  }

  .page-products .prod-sec__grid {
    grid-template-columns: var(--prod-rail) minmax(0, 1fr);
    gap: clamp(28px, 4vw, 60px);
  }

  .page-products .prod-sec__rail {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
    border-left: 1px solid var(--hf-line);
    padding: 6px 0 0 18px;
    position: sticky;
    top: 96px;
  }

  .page-products .prod-split {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    align-items: start;
  }

  .page-products .prod-split--reverse {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
  }

  .page-products .prod-split--reverse .prod-split__text {
    order: 1;
  }

  .page-products .prod-split--reverse .prod-figure {
    order: 2;
    margin-top: 0;
  }

  .page-products .prod-figure--rail {
    position: sticky;
    top: 110px;
  }
}

@media (max-width: 759px) {
  .page-products .prod-table,
  .page-products .prod-table tbody,
  .page-products .prod-table tr,
  .page-products .prod-table th,
  .page-products .prod-table td {
    display: block;
    width: 100%;
  }

  .page-products .prod-table thead {
    display: none;
  }

  .page-products .prod-table tr {
    padding: 14px 0;
    border-bottom: 1px solid var(--prod-edge);
  }

  .page-products .prod-table tbody th {
    padding: 0 0 8px;
    border: 0;
    font-size: 1rem;
  }

  .page-products .prod-table tbody td {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 16px;
    padding: 4px 0;
    border: 0;
  }

  .page-products .prod-table tbody td::before {
    content: attr(data-label);
    flex: 0 0 auto;
    font-family: var(--hf-font-mono);
    font-size: .6875rem;
    letter-spacing: .08em;
    color: var(--hf-dim);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .prod-index__list a,
  .page-products .prod-mod {
    transition: none;
  }
}