.page-products {
  --p-rail-w: 252px;
  --p-radius-a: 3px 22px 3px 22px;
  --p-radius-b: 2px 18px 2px 2px;
  background: var(--c-deep);
  color: var(--c-text);
  overflow-x: clip;
}

/* ===== 面包屑 ===== */
.page-products .p-crumb {
  padding-top: clamp(20px, 4vw, 38px);
}

.page-products .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--c-muted);
}

.page-products .breadcrumb__item {
  color: var(--c-muted);
  text-decoration: none;
}

.page-products .breadcrumb a.breadcrumb__item {
  color: var(--c-cyan);
}

.page-products .breadcrumb a.breadcrumb__item:hover {
  color: var(--c-cyan-soft);
}

.page-products .breadcrumb__sep {
  color: var(--c-line);
}

.page-products .breadcrumb__item--now {
  color: var(--c-soft);
}

/* ===== 首屏 ===== */
.page-products .p-hero {
  position: relative;
  padding: clamp(26px, 5vw, 52px) 0 clamp(44px, 7vw, 88px);
}

.page-products .p-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(640px 400px at 86% 6%, rgba(0, 229, 196, 0.15), transparent 64%),
    radial-gradient(520px 360px at 3% 96%, rgba(124, 92, 255, 0.13), transparent 66%);
  pointer-events: none;
  z-index: 0;
}

.page-products .p-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(30px, 4vw, 56px);
}

.page-products .p-hero__main {
  min-width: 0;
}

.page-products .p-hero__title {
  margin: 12px 0 20px;
  font-family: var(--font-display);
  font-size: clamp(38px, 6.4vw, 68px);
  line-height: 1.03;
  letter-spacing: 0.035em;
  font-weight: 700;
  color: var(--c-text);
}

.page-products .p-hero__lead {
  max-width: 56ch;
  margin: 0;
  color: var(--c-soft);
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.8;
}

.page-products .p-hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-products .p-hero__side {
  display: grid;
  gap: 18px;
  align-content: start;
}

.page-products .p-datum {
  border-left: 2px solid var(--c-cyan);
  padding-left: 14px;
}

.page-products .p-datum--flag {
  border-left-color: var(--c-orange);
}

.page-products .p-datum--flag .p-datum__v {
  color: var(--c-orange);
}

.page-products .p-datum__v {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(22px, 2.4vw, 28px);
  line-height: 1.2;
  color: var(--c-cyan);
  letter-spacing: 0.02em;
}

.page-products .p-datum__k {
  display: block;
  margin-top: 4px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--c-muted);
}

/* ===== 主体两栏 ===== */
.page-products .p-layout {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
  padding-bottom: clamp(40px, 6vw, 80px);
}

.page-products .p-rail {
  margin-bottom: 4px;
}

.page-products .p-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--c-muted);
}

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

.page-products .p-rail__list::-webkit-scrollbar {
  display: none;
}

.page-products .p-rail__list li {
  flex: 0 0 auto;
}

.page-products .p-rail__list .rail__link {
  display: block;
  padding: 7px 14px;
  border: 1px solid var(--c-line);
  border-radius: 999px;
  color: var(--c-soft);
  font-size: 13.5px;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-products .p-rail__list .rail__link:hover {
  color: var(--c-cyan);
  border-color: var(--c-cyan);
}

.page-products .p-rail__list .rail__link[aria-current="true"] {
  background: var(--c-cyan);
  border-color: var(--c-cyan);
  color: var(--c-deep);
}

/* ===== 章节通用 ===== */
.page-products .p-flow {
  min-width: 0;
}

.page-products .p-sec {
  padding: clamp(34px, 5vw, 60px) 0;
  border-top: 1px solid var(--c-line);
  scroll-margin-top: 120px;
}

.page-products .p-flow > .p-sec:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-products .p-sec--end {
  padding-bottom: 0;
}

.page-products .p-sec__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 16px;
}

.page-products .p-sec__no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--c-cyan);
}

.page-products .p-sec__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(23px, 3vw, 33px);
  line-height: 1.16;
  letter-spacing: 0.035em;
  font-weight: 700;
  color: var(--c-text);
}

.page-products .p-sec > .lead {
  max-width: 64ch;
}

.page-products .lead {
  color: var(--c-soft);
  line-height: 1.8;
}

/* ===== 堆叠卡片 ===== */
.page-products .p-deck {
  display: grid;
  gap: 14px;
  margin-top: clamp(22px, 3vw, 34px);
  padding-bottom: 6px;
}

.page-products .p-deck__item {
  padding: 22px 22px 18px;
  background: linear-gradient(148deg, var(--c-hull) 0%, var(--c-panel) 100%);
  border-left: 3px solid var(--c-cyan);
  border-radius: var(--p-radius-a);
  box-shadow: 0 18px 42px rgba(3, 12, 22, 0.5);
}

.page-products .p-deck__item:nth-child(2) {
  border-left-color: var(--c-violet);
}

.page-products .p-deck__item:nth-child(3) {
  border-left-color: var(--c-orange);
}

.page-products .p-deck__item h3 {
  margin: 12px 0 8px;
  font-size: 19px;
  line-height: 1.4;
  letter-spacing: 0.02em;
  color: var(--c-text);
}

.page-products .p-deck__item p {
  margin: 0 0 10px;
  color: var(--c-soft);
  font-size: 15.5px;
  line-height: 1.75;
}

.page-products .p-deck__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--c-muted);
}

/* ===== 分屏 ===== */
.page-products .p-split {
  display: grid;
  gap: clamp(22px, 3.4vw, 44px);
  margin-top: clamp(18px, 2.6vw, 30px);
}

.page-products .p-split__text {
  min-width: 0;
}

.page-products .p-bullets {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .p-bullets li {
  position: relative;
  padding-left: 20px;
  color: var(--c-soft);
  font-size: 15.5px;
  line-height: 1.78;
}

.page-products .p-bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 9px;
  height: 2px;
  background: var(--c-cyan);
}

.page-products .p-bullets strong {
  color: var(--c-text);
  font-weight: 600;
}

/* ===== 图片容器 ===== */
.page-products .p-figure {
  margin: 0;
  min-width: 0;
}

.page-products .figure__frame {
  position: relative;
  overflow: hidden;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-radius: 4px 26px 4px 26px;
  box-shadow: 0 26px 60px rgba(2, 10, 20, 0.55);
}

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

.page-products .figure__caption {
  margin-top: 12px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--c-muted);
}

/* ===== 筛选条 ===== */
.page-products .p-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: clamp(24px, 3vw, 34px) 0 16px;
}

.page-products .filter-btn {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  padding: 7px 15px;
  border-radius: 999px;
  border: 1px solid var(--c-line);
  background: transparent;
  color: var(--c-soft);
  cursor: pointer;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-products .filter-btn:hover {
  color: var(--c-cyan);
  border-color: var(--c-cyan);
}

.page-products .filter-btn[aria-pressed="true"] {
  background: var(--c-cyan);
  border-color: var(--c-cyan);
  color: var(--c-deep);
}

/* ===== 时间轴滑轨 ===== */
.page-products .p-track {
  list-style: none;
  margin: 0;
  padding: 6px 2px 18px;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(238px, 78%);
  gap: 14px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
  scrollbar-color: var(--c-line) transparent;
}

.page-products .p-track__item {
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 196px;
  padding: 18px 18px 16px;
  background: var(--c-hull);
  border-top: 2px solid var(--c-cyan);
  border-radius: var(--p-radius-b);
}

.page-products .p-track__item:nth-child(2) {
  border-top-color: var(--c-violet);
}

.page-products .p-track__item:nth-child(3) {
  border-top-color: var(--c-orange);
}

.page-products .p-track__item:nth-child(4) {
  border-top-color: var(--c-amber);
}

.page-products .p-track__item:nth-child(5) {
  border-top-color: var(--c-cyan-soft);
}

.page-products .p-track__time {
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1.1;
  letter-spacing: 0.02em;
  color: var(--c-cyan);
  display: block;
}

.page-products .p-track__league {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--c-muted);
}

.page-products .p-track__title {
  margin: 6px 0 0;
  font-size: 16.5px;
  line-height: 1.5;
  color: var(--c-text);
}

.page-products .p-track__note {
  margin: auto 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--c-muted);
}

/* ===== 双版本对照 ===== */
.page-products .p-versions {
  margin-top: clamp(20px, 3vw, 32px);
}

.page-products .compare {
  display: grid;
  gap: 1px;
  background: var(--c-line);
  border: 1px solid var(--c-line);
  border-radius: 4px 26px 4px 26px;
  overflow: hidden;
}

.page-products .compare__col {
  background: var(--c-hull);
  padding: 24px 22px 26px;
}

.page-products .compare__col--alt {
  background: var(--c-panel);
}

.page-products .compare__head {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: 0.08em;
  color: var(--c-cyan);
}

.page-products .compare__col--alt .compare__head {
  color: var(--c-violet);
}

.page-products .compare ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-products .compare li {
  position: relative;
  padding-left: 18px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--c-soft);
}

.page-products .compare li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 7px;
  height: 7px;
  background: var(--c-cyan);
  border-radius: 50%;
}

.page-products .compare__col--alt li::before {
  background: var(--c-violet);
}

.page-products .p-versions__figure {
  margin-top: clamp(20px, 3vw, 32px);
}

/* ===== 收藏面板 ===== */
.page-products .p-shelf {
  display: grid;
  gap: clamp(24px, 3.4vw, 40px);
  margin-top: clamp(20px, 3vw, 32px);
}

.page-products .p-shelf__side {
  min-width: 0;
}

.page-products .p-shelf__list {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-products .p-shelf__row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 16px;
  background: linear-gradient(90deg, var(--c-panel), rgba(11, 39, 64, 0.32));
  border-left: 2px solid var(--c-cyan);
  border-radius: var(--p-radius-b);
}

.page-products .p-shelf__row:nth-child(2) {
  margin-left: 10px;
  border-left-color: var(--c-violet);
}

.page-products .p-shelf__row:nth-child(3) {
  margin-left: 20px;
  border-left-color: var(--c-cyan-soft);
}

.page-products .p-shelf__row:nth-child(4) {
  margin-left: 30px;
  border-left-color: var(--c-amber);
}

.page-products .p-shelf__grip {
  font-size: 16px;
  line-height: 1;
  color: var(--c-line);
  cursor: grab;
}

.page-products .p-shelf__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--c-muted);
}

.page-products .p-shelf__name {
  flex: 1 1 auto;
  font-size: 15px;
  color: var(--c-text);
}

.page-products .p-shelf__hint {
  margin: 14px 0 0;
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: var(--c-muted);
}

/* ===== 同步步骤 ===== */
.page-products .p-steps {
  list-style: none;
  counter-reset: pstep;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .p-steps li {
  counter-increment: pstep;
  position: relative;
  padding: 17px 18px 17px 58px;
  background: var(--c-hull);
  border-radius: var(--p-radius-b);
  color: var(--c-soft);
  font-size: 15.5px;
  line-height: 1.72;
}

.page-products .p-steps li::before {
  content: counter(pstep, decimal-leading-zero);
  position: absolute;
  left: 18px;
  top: 17px;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--c-cyan);
}

.page-products .p-sync__figure {
  margin-top: clamp(22px, 3vw, 34px);
}

/* ===== 设备切换 ===== */
.page-products .p-tabs {
  margin-top: clamp(20px, 3vw, 30px);
}

.page-products .p-tabs__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 4px;
  width: fit-content;
  background: var(--c-hull);
  border: 1px solid var(--c-line);
  border-radius: 999px;
}

.page-products .tabs__btn {
  font-family: var(--font-body);
  font-size: 14px;
  padding: 8px 22px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--c-soft);
  cursor: pointer;
  transition: background 0.25s var(--ease), color 0.25s var(--ease);
}

.page-products .tabs__btn:hover {
  color: var(--c-cyan);
}

.page-products .tabs__btn[aria-selected="true"] {
  background: var(--c-cyan);
  color: var(--c-deep);
}

.page-products .tabs__panel {
  margin-top: 18px;
}

.page-products .tabs__panel[hidden] {
  display: none;
}

.page-products .p-parity {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .p-parity li {
  padding: 15px 18px;
  background: var(--c-hull);
  border-left: 2px solid var(--c-line);
  border-radius: 2px 14px 2px 2px;
  color: var(--c-soft);
  font-size: 15px;
  line-height: 1.72;
}

.page-products .p-parity strong {
  color: var(--c-cyan-soft);
  font-weight: 600;
}

.page-products .p-note {
  margin-top: 22px;
  padding: 16px 18px;
  border-left: 2px solid var(--c-violet);
  background: rgba(124, 92, 255, 0.08);
  color: var(--c-soft);
  font-size: 14.5px;
  line-height: 1.75;
}

/* ===== 结尾动作 ===== */
.page-products .p-acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 28px);
}

/* ===== 响应式 ===== */
@media (min-width: 640px) {
  .page-products .p-deck {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

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

@media (min-width: 760px) {
  .page-products .p-track {
    grid-auto-columns: minmax(240px, 44%);
  }
}

@media (min-width: 900px) {
  .page-products .p-hero__inner {
    grid-template-columns: minmax(0, 1.4fr) minmax(250px, 0.6fr);
    align-items: end;
  }

  .page-products .p-hero__side {
    padding-bottom: 6px;
  }

  .page-products .p-split {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: center;
  }

  .page-products .p-split--reverse {
    grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  }

  .page-products .p-versions {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: clamp(20px, 3vw, 34px);
    align-items: start;
  }

  .page-products .p-shelf {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: center;
  }

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

@media (min-width: 1024px) {
  .page-products .p-layout {
    grid-template-columns: var(--p-rail-w) minmax(0, 1fr);
    align-items: start;
    gap: clamp(34px, 4vw, 64px);
  }

  .page-products .p-rail {
    position: sticky;
    top: 122px;
    margin-bottom: 0;
    padding-top: 4px;
    border-left: 1px solid var(--c-line);
    padding-left: 4px;
  }

  .page-products .p-rail__title {
    padding-left: 14px;
  }

  .page-products .p-rail__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-products .p-rail__list li {
    flex: none;
  }

  .page-products .p-rail__list .rail__link {
    padding: 8px 12px 8px 14px;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    font-size: 14px;
    white-space: normal;
    line-height: 1.5;
  }

  .page-products .p-rail__list .rail__link[aria-current="true"] {
    background: none;
    border-left-color: var(--c-cyan);
    color: var(--c-cyan);
  }
}

@media (min-width: 1100px) {
  .page-products .p-track {
    grid-auto-columns: minmax(240px, 29%);
  }
}