.page-products {
  --pp-gap: clamp(18px, 2.6vw, 32px);
  --pp-block: clamp(52px, 7vw, 96px);
  --pp-accent: var(--ab-violet-soft);
  display: block;
}

/* ---------- 首屏 ---------- */
.page-products .pp-hero {
  padding: clamp(18px, 3vw, 34px) 0 clamp(6px, 1.5vw, 14px);
  border-bottom: 1px solid var(--ab-line-soft);
}

.page-products .pp-hero__meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ab-muted);
}

.page-products .pp-hero__title {
  margin: 0 0 20px;
  color: var(--ab-white);
}

.page-products .pp-hero .ab-lede {
  max-width: 66ch;
  margin: 0 0 26px;
  color: var(--ab-white);
}

/* ---------- 横向流程带 ---------- */
.page-products .pp-rail {
  margin-top: clamp(32px, 5vw, 58px);
}

.page-products .pp-rail__title {
  margin: 0 0 16px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ab-muted);
}

.page-products .pp-rail__viewport {
  display: flex;
  gap: 14px;
  overflow-x: auto;
  padding: 2px 2px 16px;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
  scrollbar-color: var(--ab-grid) transparent;
  -webkit-overflow-scrolling: touch;
}

.page-products .pp-rail__viewport:focus-visible {
  outline: 1px solid var(--ab-violet);
  outline-offset: 3px;
}

.page-products .pp-rail__viewport::-webkit-scrollbar {
  height: 6px;
}

.page-products .pp-rail__viewport::-webkit-scrollbar-thumb {
  background: var(--ab-grid);
}

.page-products .pp-rail__cell {
  flex: 0 0 min(76vw, 306px);
  scroll-snap-align: start;
  padding: 20px 20px 24px;
  border: 1px solid var(--ab-line);
  border-radius: var(--ab-radius);
  background: linear-gradient(158deg, rgba(14, 43, 53, 0.96), rgba(7, 27, 34, 0.92));
  transition: border-color 0.16s ease, background 0.16s ease;
}

.page-products .pp-rail__cell:hover,
.page-products .pp-rail__cell:focus-within {
  border-color: var(--ab-violet);
}

.page-products .pp-rail__num {
  display: block;
  margin-bottom: 12px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ab-coral);
}

.page-products .pp-rail__cell-title {
  margin: 0 0 10px;
  font-family: var(--ab-serif);
  font-size: 19px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--ab-white);
}

.page-products .pp-rail__cell p {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
  color: var(--ab-muted);
}

.page-products .pp-rail__hint {
  margin: 4px 0 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ab-muted);
}

/* ---------- 通用章节头 ---------- */
.page-products .pp-sec-head {
  max-width: 68ch;
  margin-bottom: var(--pp-gap);
}

.page-products .pp-sec-head .ab-eyebrow {
  margin: 0 0 12px;
}

.page-products .pp-sec-head .ab-section__title {
  margin: 0 0 14px;
  color: var(--ab-white);
}

.page-products .pp-sec-lede {
  margin: 0;
  font-size: 16px;
  line-height: 1.86;
  color: var(--ab-muted);
}

/* ---------- 版本下载区 ---------- */
.page-products .pp-versions {
  position: relative;
  margin-top: var(--pp-block);
  padding: clamp(24px, 4vw, 46px) clamp(18px, 3vw, 38px);
  border: 1px solid var(--ab-line);
  border-radius: var(--ab-radius);
  overflow: hidden;
  background: var(--ab-slate);
}

.page-products .pp-versions__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.3;
  pointer-events: none;
}

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

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

.page-products .pp-vlist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .pp-vlist__item {
  padding: 18px 18px 20px;
  border: 1px solid var(--ab-line-soft);
  border-radius: var(--ab-radius);
  background: rgba(7, 27, 34, 0.88);
  transition: border-color 0.16s ease, transform 0.16s ease;
}

.page-products .pp-vlist__item:hover {
  border-color: var(--ab-violet-soft);
  transform: translateX(4px);
}

.page-products .pp-vlist__item--current {
  border-color: rgba(255, 106, 69, 0.55);
  background: linear-gradient(150deg, rgba(123, 92, 255, 0.18), rgba(7, 27, 34, 0.94) 58%);
}

.page-products .pp-vlist__head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.page-products .pp-vlist__ver {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--ab-violet-soft);
}

.page-products .pp-vlist__item--current .pp-vlist__ver {
  color: var(--ab-coral);
}

.page-products .pp-vlist__name {
  margin: 0 0 14px;
  font-family: var(--ab-serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--ab-white);
}

.page-products .pp-vlist__spec {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 26px;
  margin: 0;
}

.page-products .pp-vlist__spec > div {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-products .pp-vlist__spec dt {
  font-family: var(--ab-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ab-muted);
}

.page-products .pp-vlist__spec dd {
  margin: 0;
  font-size: 14px;
  color: var(--ab-white);
}

.page-products .pp-vlist__change {
  margin: 14px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--ab-line-soft);
  font-size: 15px;
  line-height: 1.8;
  color: var(--ab-muted);
}

.page-products .pp-versions__foot {
  margin: 22px 0 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ab-pulse);
}

/* ---------- 图片容器 ---------- */
.page-products .pp-figure {
  margin: 0 0 var(--pp-gap);
  border: 1px solid var(--ab-line);
  border-radius: var(--ab-radius);
  overflow: hidden;
  background: var(--ab-slate);
}

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

.page-products .pp-figure__cap {
  padding: 12px 16px;
  border-top: 1px solid var(--ab-line-soft);
  font-family: var(--ab-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--ab-muted);
}

/* ---------- 适配清单 ---------- */
.page-products .pp-checklist {
  margin-top: var(--pp-block);
}

.page-products .pp-checklist__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pp-gap);
}

.page-products .pp-group {
  --pp-group-accent: var(--ab-violet-soft);
  margin-bottom: 12px;
  border: 1px solid var(--ab-line);
  border-radius: var(--ab-radius);
  background: rgba(14, 43, 53, 0.5);
  overflow: hidden;
}

.page-products .pp-group--load {
  --pp-group-accent: var(--ab-pulse);
}

.page-products .pp-group--view {
  --pp-group-accent: var(--ab-coral);
}

.page-products .pp-group--fb {
  --pp-group-accent: var(--ab-violet);
}

.page-products .pp-group__sum {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
  transition: background 0.16s ease;
}

.page-products .pp-group__sum::-webkit-details-marker {
  display: none;
}

.page-products .pp-group__sum:hover {
  background: rgba(123, 92, 255, 0.08);
}

.page-products .pp-group[open] > .pp-group__sum {
  background: rgba(123, 92, 255, 0.1);
  border-bottom: 1px solid var(--ab-line-soft);
}

.page-products .pp-group__num {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--pp-group-accent);
}

.page-products .pp-group__name {
  font-family: var(--ab-serif);
  font-size: 18px;
  font-weight: 600;
  color: var(--ab-white);
}

.page-products .pp-group__count {
  margin-left: auto;
  font-size: 12px;
  color: var(--ab-muted);
}

.page-products .pp-group__sum::after {
  margin-left: 6px;
  font-family: var(--ab-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--pp-group-accent);
  content: "+";
}

.page-products .pp-group[open] > .pp-group__sum::after {
  content: "–";
}

.page-products .pp-group__list {
  list-style: none;
  margin: 0;
  padding: 8px 18px 18px;
}

.page-products .pp-group__list li {
  position: relative;
  padding: 10px 0 10px 22px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--ab-white);
  border-bottom: 1px dashed rgba(28, 75, 88, 0.5);
}

.page-products .pp-group__list li:last-child {
  border-bottom: 0;
}

.page-products .pp-group__list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 18px;
  width: 7px;
  height: 7px;
  border-radius: 1px;
  background: var(--pp-group-accent);
  opacity: 0.85;
}

/* ---------- 分组索引 ---------- */
.page-products .pp-index {
  padding: 18px;
  border: 1px solid var(--ab-line);
  border-radius: var(--ab-radius);
  background: rgba(7, 27, 34, 0.72);
}

.page-products .pp-index__label {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ab-muted);
}

.page-products .pp-index__list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
}

.page-products .pp-index__list li {
  margin-bottom: 8px;
}

.page-products .pp-index__list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border: 1px solid transparent;
  border-left: 2px solid var(--ab-violet);
  border-radius: var(--ab-radius);
  font-size: 14px;
  color: var(--ab-white);
  text-decoration: none;
  transition: background 0.16s ease, border-color 0.16s ease;
}

.page-products .pp-index__list a:hover,
.page-products .pp-index__list a:focus-visible {
  background: rgba(123, 92, 255, 0.16);
  border-color: var(--ab-violet);
}

.page-products .pp-index__g {
  font-size: 12px;
  color: var(--ab-violet-soft);
}

.page-products .pp-index__n {
  margin-left: auto;
  font-family: var(--ab-mono);
  font-size: 12px;
  color: var(--ab-muted);
}

.page-products .pp-index__total {
  margin: 0 0 14px;
  padding-top: 14px;
  border-top: 1px solid var(--ab-line-soft);
  font-size: 13px;
  color: var(--ab-muted);
}

.page-products .pp-index__num {
  font-size: 20px;
  font-weight: 700;
  color: var(--ab-pulse);
}

.page-products .pp-index__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.78;
  color: var(--ab-muted);
}

/* ---------- 终端档位对照 ---------- */
.page-products .pp-tiers {
  margin-top: var(--pp-block);
}

.page-products .pp-tiers__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pp-gap);
}

.page-products .pp-tier {
  padding: 24px 20px 22px;
  border: 1px solid var(--ab-line);
  border-top: 3px solid var(--pp-tier-color, var(--ab-violet));
  border-radius: var(--ab-radius);
  background: rgba(14, 43, 53, 0.6);
  transition: border-color 0.16s ease, background 0.16s ease;
}

.page-products .pp-tier:hover {
  background: rgba(14, 43, 53, 0.85);
}

.page-products .pp-tier--basic {
  --pp-tier-color: var(--ab-pulse);
}

.page-products .pp-tier--std {
  --pp-tier-color: var(--ab-violet-soft);
}

.page-products .pp-tier--hi {
  --pp-tier-color: var(--ab-coral);
}

.page-products .pp-tier__code {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--pp-tier-color, var(--ab-violet-soft));
}

.page-products .pp-tier__name {
  margin: 0 0 8px;
  font-family: var(--ab-serif);
  font-size: 24px;
  font-weight: 600;
  color: var(--ab-white);
}

.page-products .pp-tier__sub {
  margin: 0 0 14px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--ab-line-soft);
  font-size: 14px;
  color: var(--ab-muted);
}

.page-products .pp-tier__body {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.82;
  color: var(--ab-white);
}

.page-products .pp-tier__scene {
  display: inline-block;
  margin: 0;
  padding: 7px 10px;
  border: 1px solid var(--ab-line);
  border-radius: var(--ab-radius);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ab-muted);
}

/* ---------- 反馈通道 ---------- */
.page-products .pp-feedback {
  margin-top: var(--pp-block);
}

.page-products .pp-feedback__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pp-gap);
}

.page-products .pp-steps {
  list-style: none;
  counter-reset: ppstep;
  margin: 0 0 20px;
  padding: 0;
}

.page-products .pp-steps li {
  counter-increment: ppstep;
  position: relative;
  padding: 0 0 24px 46px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ab-muted);
}

.page-products .pp-steps li:last-child {
  padding-bottom: 0;
}

.page-products .pp-steps li strong {
  color: var(--ab-white);
  font-weight: 600;
}

.page-products .pp-steps li::before {
  content: "0" counter(ppstep);
  position: absolute;
  left: 0;
  top: 0;
  display: grid;
  place-items: center;
  width: 27px;
  height: 27px;
  border-radius: var(--ab-radius);
  background: var(--ab-pulse);
  color: var(--ab-ink);
  font-family: var(--ab-mono);
  font-size: 12px;
  font-weight: 500;
}

.page-products .pp-steps li::after {
  content: "";
  position: absolute;
  left: 13px;
  top: 32px;
  bottom: 4px;
  width: 1px;
  background: var(--ab-line);
}

.page-products .pp-steps li:last-child::after {
  display: none;
}

.page-products .pp-note {
  margin: 0;
  padding: 14px 16px;
  border: 1px dashed rgba(255, 106, 69, 0.5);
  border-radius: var(--ab-radius);
  background: rgba(255, 106, 69, 0.07);
  font-size: 14px;
  line-height: 1.8;
  color: var(--ab-white);
}

/* ---------- 安装包校验 ---------- */
.page-products .pp-verify {
  margin-top: var(--pp-block);
}

.page-products .pp-verify__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pp-gap);
}

.page-products .pp-verify__card {
  padding: 18px 20px;
  margin-bottom: 12px;
  border: 1px solid var(--ab-line);
  border-left: 3px solid var(--ab-violet);
  border-radius: var(--ab-radius);
  background: rgba(14, 43, 53, 0.55);
}

.page-products .pp-verify__card:last-child {
  margin-bottom: 0;
}

.page-products .pp-verify__title {
  margin: 0 0 10px;
  font-family: var(--ab-serif);
  font-size: 17px;
  font-weight: 600;
  color: var(--ab-white);
}

.page-products .pp-verify__card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ab-muted);
}

/* ---------- 兜底通道 ---------- */
.page-products .pp-help {
  margin-top: var(--pp-block);
  padding: clamp(24px, 3.5vw, 40px) clamp(18px, 3vw, 34px);
  border: 1px solid var(--ab-line);
  border-radius: var(--ab-radius);
  background: linear-gradient(140deg, rgba(123, 92, 255, 0.14), rgba(7, 27, 34, 0.9) 62%);
}

.page-products .pp-help .ab-section__title {
  margin: 0 0 14px;
  color: var(--ab-white);
}

.page-products .pp-help__lede {
  max-width: 64ch;
  margin: 0 0 24px;
  font-size: 16px;
  line-height: 1.86;
  color: var(--ab-muted);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 780px) {
  .page-products .pp-verify__grid {
    grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 1024px) {
  .page-products .pp-checklist__layout {
    grid-template-columns: minmax(0, 1fr) 240px;
    align-items: start;
  }

  .page-products .pp-index {
    position: sticky;
    top: 26px;
  }

  .page-products .pp-feedback__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-products .pp-tier--std {
    transform: translateY(-12px);
  }
}

@media (min-width: 900px) {
  .page-products .pp-tiers__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pp-vlist__item:hover {
    transform: none;
  }

  .page-products .pp-tier--std {
    transform: none;
  }
}
<<<END>>>