.page-products {
  --pp-gap: clamp(18px, 3vw, 30px);
  --pp-panel-pad: clamp(24px, 4vw, 44px);
}

/* ---------- 引导面板 ---------- */
.page-products .pp-lead {
  max-width: 60ch;
  padding-top: clamp(6px, 1.6vw, 18px);
  padding-bottom: clamp(22px, 4vw, 40px);
}

.page-products .pp-lead .display-1 {
  margin: 12px 0 0;
  font-size: clamp(1.85rem, 5.2vw, 3.2rem);
  line-height: 1.08;
  letter-spacing: -0.012em;
}

.page-products .pp-lead .lede {
  margin: 18px 0 0;
}

.page-products .pp-index {
  list-style: none;
  margin: clamp(22px, 4vw, 38px) 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-products .pp-index > li {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  column-gap: 14px;
  row-gap: 6px;
  padding: 18px 12px 18px 6px;
  border-bottom: 1px solid var(--line);
  border-radius: 12px;
  transition: background-color var(--dur) var(--ease);
}

.page-products .pp-index > li:hover {
  background-color: rgba(14, 42, 71, .045);
}

.page-products .pp-index__no {
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: .84rem;
  line-height: 1.95;
  color: var(--clay);
}

.page-products .pp-index__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.02rem, 2.1vw, 1.22rem);
  line-height: 1.35;
  color: var(--ink);
}

.page-products .pp-index__note {
  margin: 0;
  font-size: .94rem;
  line-height: 1.72;
  color: var(--ink-soft);
}

/* ---------- 功能面板与标签 ---------- */
.page-products .pp-console .panel-head {
  margin-bottom: clamp(20px, 3.5vw, 32px);
}

.page-products .pp-console .panel-head > div,
.page-products .pp-perf .panel-head > div,
.page-products .pp-paths-section .panel-head > div,
.page-products .pp-versions .panel-head > div {
  max-width: 64ch;
}

.page-products .pp-section-lede {
  margin: 8px 0 0;
  font-size: 1rem;
  line-height: 1.76;
  color: var(--ink-soft);
}

.page-products .pp-tabs {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding: 6px;
  margin: 0 0 clamp(20px, 3vw, 30px);
  border-radius: var(--r-pill);
  background: rgba(14, 42, 71, .07);
  scrollbar-width: none;
}

.page-products .pp-tabs::-webkit-scrollbar {
  display: none;
}

.page-products .pp-tabs .tab {
  flex: 0 0 auto;
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: .95rem;
  font-weight: 600;
  line-height: 1;
  padding: 12px 20px;
  border-radius: var(--r-pill);
  cursor: pointer;
  white-space: nowrap;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-products .pp-tabs .tab[aria-selected="true"] {
  background: var(--sea);
  color: var(--cream);
}

.page-products .pp-tabs .tab:hover:not([aria-selected="true"]) {
  background: rgba(14, 42, 71, .1);
}

.page-products .pp-tabs .tab:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 3px;
}

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

.page-products .pp-panel {
  animation: pp-panel-in var(--dur) var(--ease) both;
}

@keyframes pp-panel-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 功能分栏 ---------- */
.page-products .pp-feature {
  display: grid;
  gap: var(--pp-gap);
}

.page-products .pp-feature__media {
  min-width: 0;
}

.page-products .pp-feature__media .media-frame {
  position: relative;
  overflow: hidden;
  border-radius: var(--r-card);
}

.page-products .pp-feature__media .media-fill {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

.page-products .pp-frame-square {
  aspect-ratio: 1 / 1;
  width: 100%;
  max-width: 420px;
}

.page-products .media-timecode {
  position: absolute;
  right: 12px;
  bottom: 12px;
  z-index: 2;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .04em;
  padding: 5px 11px;
  border-radius: var(--r-pill);
  background: rgba(11, 17, 22, .8);
  color: var(--lime);
}

.page-products .media-caption {
  margin: 10px 0 0;
  font-size: .85rem;
  line-height: 1.65;
  color: var(--stone);
}

.page-products .pp-feature__body {
  min-width: 0;
}

.page-products .pp-panel__title {
  margin: 0 0 12px;
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: clamp(1.24rem, 2.6vw, 1.58rem);
  line-height: 1.32;
  color: var(--ink);
}

.page-products .pp-panel__desc {
  margin: 0;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ---------- 操作清单 ---------- */
.page-products .pp-steps {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}

.page-products .pp-steps > li {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  column-gap: 12px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.page-products .pp-steps__no {
  display: inline-block;
  width: 32px;
  font-family: var(--font-mono);
  font-size: .78rem;
  line-height: 1.75;
  text-align: center;
  color: var(--red);
  border-bottom: 2px solid var(--red);
  padding-bottom: 1px;
  align-self: start;
}

.page-products .pp-steps__body {
  font-size: .97rem;
  line-height: 1.78;
  color: var(--ink-soft);
  min-width: 0;
}

.page-products .pp-steps__body b {
  color: var(--ink);
  font-weight: 700;
}

/* ---------- 双时长对比 ---------- */
.page-products .pp-duo {
  display: grid;
  gap: 14px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-products .pp-duo__item {
  border-radius: var(--r-card);
  padding: 18px 20px;
  background: var(--paper-moss);
}

.page-products .pp-duo__item--alt {
  background: var(--paper-clay);
}

.page-products .pp-duo__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .1em;
  color: var(--stone);
}

.page-products .pp-duo__title {
  margin: 8px 0 6px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.08rem;
  line-height: 1.35;
  color: var(--ink);
}

.page-products .pp-duo__text {
  margin: 0;
  font-size: .93rem;
  line-height: 1.72;
  color: var(--ink-soft);
}

/* ---------- 筛选 chips ---------- */
.page-products .pp-filter {
  margin-top: clamp(22px, 3vw, 32px);
  padding: clamp(18px, 3vw, 26px);
  border-radius: var(--r-panel);
  background: var(--paper-moss);
}

.page-products .pp-filter__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .78rem;
  letter-spacing: .08em;
  color: var(--stone);
}

.page-products .pp-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0 0;
}

.page-products .pp-chips .chip {
  appearance: none;
  font-family: var(--font-body);
  font-size: .88rem;
  line-height: 1;
  padding: 10px 16px;
  border-radius: var(--r-pill);
  border: 1px solid rgba(14, 42, 71, .22);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .pp-chips .chip[aria-pressed="true"] {
  background: var(--sea);
  border-color: var(--sea);
  color: var(--cream);
}

.page-products .pp-chips .chip:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 2px;
}

.page-products .pp-filter__note {
  margin: 16px 0 0;
  font-size: .88rem;
  line-height: 1.72;
  color: var(--ink-soft);
}

/* ---------- 补时读数 ---------- */
.page-products .pp-clock {
  display: inline-flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 6px 16px;
  margin: 18px 0 0;
  padding: 16px 22px;
  border-radius: var(--r-card);
  background: var(--sea-ink);
}

.page-products .pp-clock__value {
  font-family: var(--font-mono);
  font-size: clamp(1.7rem, 5vw, 2.4rem);
  line-height: 1;
  letter-spacing: .06em;
  color: var(--lime);
}

.page-products .pp-clock__label {
  font-size: .84rem;
  line-height: 1.6;
  color: var(--silver);
}

/* ---------- 版本面板 ---------- */
.page-products .pp-versions {
  color: var(--cream);
}

.page-products .pp-versions .section-title {
  color: var(--cream);
}

.page-products .pp-versions .panel-no {
  color: var(--silver);
}

.page-products .pp-versions .pp-section-lede {
  color: var(--silver);
}

.page-products .pp-ver-grid {
  display: grid;
  gap: 1px;
  margin: clamp(24px, 4vw, 36px) 0 0;
  background: rgba(201, 206, 212, .2);
  border-radius: var(--r-card);
  overflow: hidden;
}

.page-products .pp-ver {
  padding: 24px 22px;
  background: var(--sea);
}

.page-products .pp-ver--v3 {
  background: var(--sea-ink);
  box-shadow: inset 0 3px 0 var(--lime);
}

.page-products .pp-ver__tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .08em;
  padding: 5px 11px;
  border-radius: var(--r-pill);
  background: rgba(201, 206, 212, .16);
  color: var(--silver);
}

.page-products .pp-ver--v3 .pp-ver__tag {
  background: rgba(182, 255, 60, .16);
  color: var(--lime);
}

.page-products .pp-ver__val {
  margin: 18px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 4vw, 2rem);
  line-height: 1.15;
  letter-spacing: .06em;
  color: var(--cream);
}

.page-products .pp-ver--v3 .pp-ver__val {
  color: var(--lime);
}

.page-products .pp-ver__title {
  margin: 14px 0 8px;
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: 1.06rem;
  line-height: 1.4;
  color: var(--cream);
}

.page-products .pp-ver__text {
  margin: 0;
  font-size: .9rem;
  line-height: 1.74;
  color: var(--silver);
}

/* ---------- 版本刻度 ---------- */
.page-products .pp-track {
  list-style: none;
  margin: clamp(28px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-products .pp-track__item {
  position: relative;
  padding-left: 28px;
}

.page-products .pp-track__item::before {
  content: "";
  position: absolute;
  top: 6px;
  left: 0;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--clay);
  box-shadow: 0 0 0 4px var(--sea);
}

.page-products .pp-track__item--now::before {
  background: var(--lime);
}

.page-products .pp-track__year {
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .1em;
  color: var(--cream);
}

.page-products .pp-track__text {
  margin: 6px 0 0;
  font-size: .9rem;
  line-height: 1.72;
  color: var(--silver);
}

.page-products .pp-ver-art {
  margin-top: clamp(28px, 4vw, 44px);
  overflow: hidden;
  border-radius: var(--r-card);
}

.page-products .pp-ver-art .media-fill {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 运行条件 ---------- */
.page-products .pp-spec {
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-products .pp-spec__row {
  display: grid;
  gap: 4px 22px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-products .pp-spec dt {
  font-family: var(--font-mono);
  font-size: .82rem;
  letter-spacing: .04em;
  line-height: 1.9;
  color: var(--clay);
}

.page-products .pp-spec dd {
  margin: 0;
  font-size: .97rem;
  line-height: 1.78;
  color: var(--ink-soft);
}

/* ---------- 使用顺序 ---------- */
.page-products .pp-paths {
  list-style: none;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-products .pp-paths__item {
  padding: 22px 20px;
  border-radius: var(--r-card);
  background: var(--paper-moss);
  border-top: 3px solid var(--moss);
}

.page-products .pp-paths__item:nth-child(2) {
  background: var(--paper-clay);
  border-top-color: var(--red);
}

.page-products .pp-paths__item:nth-child(3) {
  border-top-color: var(--clay);
}

.page-products .pp-paths__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.06rem;
  line-height: 1.4;
  color: var(--ink);
}

.page-products .pp-paths__text {
  margin: 0;
  font-size: .94rem;
  line-height: 1.76;
  color: var(--ink-soft);
}

.page-products .pp-paths__text a {
  color: var(--red-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 出口面板 ---------- */
.page-products .pp-exit .section-title {
  color: var(--cream);
}

.page-products .pp-exit__text {
  margin: 14px 0 0;
  max-width: 66ch;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--silver);
}

.page-products .pp-exit__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

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

@media (min-width: 760px) {
  .page-products .pp-ver-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .pp-spec__row {
    grid-template-columns: 170px minmax(0, 1fr);
    align-items: baseline;
  }

  .page-products .pp-index > li {
    grid-template-columns: 48px 240px minmax(0, 1fr);
    column-gap: 20px;
    align-items: baseline;
  }

  .page-products .pp-index__no {
    grid-row: auto;
    line-height: 1.6;
  }

  .page-products .pp-index__title,
  .page-products .pp-index__note {
    grid-row: 1;
  }
}

@media (min-width: 800px) {
  .page-products .pp-track {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
    position: relative;
  }

  .page-products .pp-track::before {
    content: "";
    position: absolute;
    top: 5px;
    left: 0;
    right: 0;
    height: 1px;
    background: rgba(201, 206, 212, .3);
  }

  .page-products .pp-track__item {
    padding-left: 0;
    padding-top: 30px;
  }

  .page-products .pp-track__item::before {
    top: 0;
    left: 0;
  }
}

@media (min-width: 900px) {
  .page-products .pp-feature {
    grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
    align-items: start;
  }

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

@media (min-width: 1100px) {
  .page-products .pp-feature {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pp-panel {
    animation: none;
  }

  .page-products .pp-index > li,
  .page-products .pp-tabs .tab,
  .page-products .pp-chips .chip {
    transition: none;
  }
}