.page-products {
  --pp-line: 1px solid var(--edge);
  background: var(--ink);
  color: var(--paper);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-products .pp-hero {
  position: relative;
  padding: clamp(28px, 5vw, 56px) 0 clamp(28px, 4vw, 48px);
  border-bottom: 1px solid var(--grid);
  overflow: hidden;
}

.page-products .pp-hero::before {
  content: "";
  position: absolute;
  inset: -30% 35% 30% -15%;
  background: radial-gradient(circle at 32% 34%, rgba(47, 214, 208, 0.12), transparent 62%);
  pointer-events: none;
}

.page-products .pp-hero .eyebrow {
  position: relative;
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--grey);
}

.page-products .pp-hero__title {
  position: relative;
  margin: 0;
  max-width: 17em;
  font-family: var(--sans);
  font-weight: 900;
  font-size: clamp(32px, 6.4vw, 74px);
  line-height: 1.06;
  letter-spacing: -0.02em;
}

.page-products .pp-hero__lede {
  position: relative;
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  max-width: 46em;
  font-size: 17px;
  line-height: 1.75;
  color: var(--grey);
}

.page-products .pp-stats {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 1px;
  list-style: none;
  background: var(--grid);
  border: 1px solid var(--grid);
}

.page-products .pp-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 18px;
  background: var(--panel);
  box-shadow: none;
  transition: background 160ms var(--ease), box-shadow 160ms var(--ease);
}

.page-products .pp-stat:hover {
  background: #131A2C;
}

.page-products .pp-stat__num {
  font-family: var(--mono);
  font-size: clamp(26px, 4.4vw, 38px);
  font-weight: 600;
  line-height: 1;
  color: var(--neon);
  font-variant-numeric: tabular-nums;
}

.page-products .pp-stat__key {
  font-size: 13px;
  line-height: 1.5;
  color: var(--grey);
}

/* ---------- 主布局：左索引 + 右正文 ---------- */
.page-products .pp-layout {
  padding-top: clamp(26px, 4vw, 48px);
}

.page-products .pp-index {
  margin-bottom: 30px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--grid);
}

.page-products .pp-index__head {
  margin: 0 0 10px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--grey);
}

.page-products .pp-index__list {
  display: flex;
  gap: 6px;
  margin: 0;
  padding: 0 0 8px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-products .pp-index__item {
  flex: 0 0 auto;
}

.page-products .pp-index__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--edge);
  border-left: 2px solid var(--edge);
  background: var(--panel);
  color: var(--grey);
  font-size: 13px;
  text-decoration: none;
  white-space: nowrap;
  transition: color 160ms var(--ease), border-color 160ms var(--ease), background 160ms var(--ease);
}

.page-products .pp-index__no {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--gold);
}

.page-products .pp-index__link:hover,
.page-products .pp-index__link:focus-visible {
  color: var(--paper);
  border-color: var(--neon);
  background: #131A2C;
}

.page-products .pp-index__link.is-active {
  color: var(--paper);
  border-left-color: var(--brick);
  background: #131A2C;
}

/* ---------- 章节 ---------- */
.page-products .pp-chapter {
  padding: clamp(30px, 4.6vw, 56px) 0 clamp(24px, 3.6vw, 42px);
  border-top: 1px solid var(--grid);
}

.page-products .pp-chapter:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-products .pp-chapter__head {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: clamp(16px, 2.4vw, 26px);
}

.page-products .pp-chapter__no {
  display: block;
  font-family: var(--mono);
  font-weight: 600;
  font-size: clamp(42px, 10vw, 92px);
  line-height: 0.82;
  letter-spacing: -0.05em;
  color: var(--grid);
}

.page-products .pp-chapter__title {
  margin: 0;
  font-family: var(--sans);
  font-weight: 800;
  font-size: clamp(22px, 3.4vw, 38px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-products .pp-chapter__body > p {
  margin: 0 0 16px;
  max-width: 62em;
  font-size: 17px;
  line-height: 1.75;
  color: var(--paper);
}

.page-products .pp-chapter__body > p:last-child {
  margin-bottom: 0;
}

.page-products .pp-sub {
  margin: clamp(22px, 3vw, 32px) 0 10px;
  font-family: var(--sans);
  font-weight: 700;
  font-size: 19px;
  line-height: 1.4;
  color: var(--paper);
  padding-left: 12px;
  border-left: 3px solid var(--brick);
}

.page-products .pp-chapter__body a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 214, 208, 0.4);
  transition: border-color 160ms var(--ease);
}

.page-products .pp-chapter__body a:hover,
.page-products .pp-chapter__body a:focus-visible {
  border-bottom-color: var(--neon);
}

.page-products .side-note {
  margin: 14px 0 0;
  max-width: 58em;
  padding-left: 14px;
  border-left: 2px solid var(--grid);
  font-size: 13px;
  line-height: 1.65;
  color: var(--grey);
}

.page-products .callout {
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 16px 18px;
  border-left: 3px solid var(--brick);
  background: rgba(179, 58, 46, 0.1);
}

.page-products .callout p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
}

/* ---------- 版本刻度尺 ---------- */
.page-products .pp-scale {
  margin: clamp(20px, 3vw, 30px) 0;
  padding: 18px 16px 12px;
  border: 1px solid var(--grid);
  background: var(--panel);
}

.page-products .pp-scale svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

.page-products .pp-scale__cap {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--grey);
}

/* ---------- 表格 ---------- */
.page-products .pp-table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: 14px;
}

.page-products .pp-table__cap {
  caption-side: top;
  padding: 0 0 12px;
  text-align: left;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--grey);
}

.page-products .pp-table th,
.page-products .pp-table td {
  padding: 12px 14px;
  text-align: left;
  border-bottom: 1px solid var(--grid);
  vertical-align: middle;
}

.page-products .pp-table thead th {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--grey);
  background: var(--panel);
  border-bottom: 1px solid var(--edge);
}

.page-products .pp-table tbody th {
  font-weight: 600;
  color: var(--paper);
}

.page-products .pp-table tbody tr:nth-child(even) {
  background: rgba(15, 21, 38, 0.6);
}

.page-products .pp-table tbody tr {
  transition: box-shadow 160ms var(--ease), background 160ms var(--ease);
}

.page-products .pp-table tbody tr:hover,
.page-products .pp-table tbody tr:focus-within {
  background: rgba(47, 214, 208, 0.07);
  box-shadow: inset 0 0 0 1px var(--neon);
}

.page-products .pp-table .mono {
  font-family: var(--mono);
  font-variant-numeric: tabular-nums;
  color: var(--gold);
  white-space: nowrap;
}

.page-products .pp-table tbody th.mono {
  color: var(--grey);
}

.page-products .pp-table .tag {
  white-space: nowrap;
}

/* ---------- 速度对比条 ---------- */
.page-products .pp-speed {
  margin: clamp(20px, 3vw, 30px) 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--grid);
  background: var(--panel);
}

.page-products .pp-speed__row {
  display: grid;
  grid-template-columns: 68px minmax(0, 1fr) 74px;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--grid);
}

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

.page-products .pp-speed__name {
  font-size: 13px;
  color: var(--grey);
}

.page-products .pp-speed__track {
  display: block;
  height: 10px;
  background: var(--edge);
  overflow: hidden;
}

.page-products .pp-speed__fill {
  display: block;
  height: 100%;
}

.page-products .pp-speed__fill--before {
  width: 100%;
  background: var(--grey);
}

.page-products .pp-speed__fill--after {
  width: 45%;
  background: var(--neon);
}

.page-products .pp-speed__fill--weak {
  width: 71%;
  background: var(--gold);
}

.page-products .pp-speed__val {
  font-family: var(--mono);
  font-size: 14px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  text-align: right;
  color: var(--paper);
}

/* ---------- 事实小列表 ---------- */
.page-products .pp-facts {
  margin: 0 0 clamp(20px, 3vw, 30px);
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--grid);
  border: 1px solid var(--grid);
}

.page-products .pp-facts li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 14px 16px;
  background: var(--panel);
  font-size: 15px;
  line-height: 1.65;
  color: var(--paper);
}

.page-products .pp-facts__k {
  flex: 0 0 auto;
  min-width: 2ch;
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 600;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

/* ---------- 图片 ---------- */
.page-products .pp-shot {
  margin: clamp(22px, 3.4vw, 34px) 0 0;
}

.page-products .pp-shot .figure__frame {
  overflow: hidden;
}

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

.page-products .pp-shot--tall {
  max-width: 420px;
}

.page-products .pp-shot--wide {
  max-width: 880px;
}

.page-products .pp-shot .figure__caption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--grey);
}

/* ---------- 记录操作路径 ---------- */
.page-products .pp-path {
  margin: clamp(18px, 3vw, 28px) 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-products .pp-path__item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--grid);
  font-size: 15px;
  line-height: 1.7;
}

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

.page-products .pp-path__no {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border: 1px solid var(--grid);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--neon);
}

.page-products .pp-path__text {
  color: var(--paper);
}

/* ---------- 版本号复制 ---------- */
.page-products .pp-vercopy {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin: clamp(18px, 3vw, 26px) 0;
  padding: 14px 16px;
  border: 1px solid var(--grid);
  background: var(--panel);
}

.page-products .pp-vercopy__label {
  font-size: 13px;
  color: var(--grey);
}

.page-products .pp-vercopy .copy-chip {
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}

.page-products .pp-vercopy__hint {
  font-size: 12px;
  color: var(--grey);
}

/* ---------- 版本日志 ---------- */
.page-products .pp-log {
  margin: clamp(18px, 3vw, 26px) 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--grid);
}

.page-products .pp-log__item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--grid);
  transition: background 160ms var(--ease);
}

.page-products .pp-log__item:hover {
  background: rgba(47, 214, 208, 0.05);
}

.page-products .pp-log__ver {
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 600;
  color: var(--gold);
}

.page-products .pp-log__item .tag {
  justify-self: start;
}

.page-products .pp-log__desc {
  margin: 2px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper);
}

/* ---------- 四步上手 ---------- */
.page-products .pp-steps {
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
  position: relative;
}

.page-products .pp-step {
  position: relative;
  display: flex;
  gap: 16px;
  padding: 0 0 clamp(22px, 3vw, 30px) 0;
}

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

.page-products .pp-step::before {
  content: "";
  position: absolute;
  left: 17px;
  top: 36px;
  bottom: 0;
  width: 1px;
  background: var(--grid);
}

.page-products .pp-step:last-child::before {
  display: none;
}

.page-products .pp-step__dot {
  flex: 0 0 auto;
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid var(--neon);
  background: var(--ink);
  font-family: var(--mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--neon);
}

.page-products .pp-step__body {
  min-width: 0;
  padding-top: 2px;
}

.page-products .pp-step__title {
  margin: 0 0 6px;
  font-family: var(--sans);
  font-weight: 700;
  font-size: 18px;
  line-height: 1.4;
  color: var(--paper);
}

.page-products .pp-step__body p {
  margin: 0 0 8px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--grey);
}

.page-products .pp-step__time {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--gold);
  border-bottom: 1px solid rgba(229, 178, 92, 0.4);
}

/* ---------- 页尾去向 ---------- */
.page-products .pp-next {
  margin-top: clamp(40px, 6vw, 80px);
  padding: clamp(30px, 5vw, 60px) 0 clamp(44px, 6vw, 78px);
  border-top: 1px solid var(--grid);
  background: linear-gradient(180deg, rgba(15, 21, 38, 0.9), var(--black));
}

.page-products .pp-next__title {
  margin: 0 0 clamp(18px, 3vw, 28px);
  font-family: var(--sans);
  font-weight: 800;
  font-size: clamp(20px, 3vw, 30px);
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-products .pp-next__list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--grid);
  border: 1px solid var(--grid);
}

.page-products .pp-next__link {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 16px 18px;
  background: var(--panel);
  color: var(--paper);
  font-size: 15px;
  line-height: 1.6;
  text-decoration: none;
  transition: background 160ms var(--ease), box-shadow 160ms var(--ease);
}

.page-products .pp-next__link:hover,
.page-products .pp-next__link:focus-visible {
  background: #131A2C;
  box-shadow: inset 3px 0 0 var(--brick);
}

.page-products .pp-next__no {
  flex: 0 0 auto;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--gold);
}

/* ---------- 进入视口淡入 ---------- */
.page-products [data-reveal] {
  opacity: 1;
  transform: none;
}

.has-js .page-products [data-reveal] {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.32s var(--ease), transform 0.32s var(--ease);
}

.has-js .page-products [data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .has-js .page-products [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .page-products * {
    transition-duration: 0.01ms !important;
  }
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 640px) {
  .page-products .pp-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .pp-log__item {
    grid-template-columns: 84px 130px minmax(0, 1fr);
    align-items: baseline;
    column-gap: 16px;
  }

  .page-products .pp-log__item .tag {
    justify-self: start;
  }

  .page-products .pp-log__desc {
    grid-column: 3 / 4;
    margin-top: 0;
  }
}

@media (min-width: 1000px) {
  .page-products .pp-layout {
    display: grid;
    grid-template-columns: 208px minmax(0, 1fr);
    column-gap: clamp(34px, 4.6vw, 76px);
    align-items: start;
  }

  .page-products .pp-index {
    position: sticky;
    top: 104px;
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: 0;
  }

  .page-products .pp-index__list {
    display: block;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-products .pp-index__item + .pp-index__item {
    margin-top: 2px;
  }

  .page-products .pp-index__link {
    width: 100%;
    justify-content: flex-start;
  }

  .page-products .pp-chapter__head {
    gap: 10px;
  }

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

  .page-products .pp-shot--tall {
    max-width: 380px;
  }
}