.page-products {
  background: var(--kit-paper);
  color: var(--kit-ink);
  font-family: var(--kit-sans);
  line-height: 1.75;
  overflow-x: clip;
}

.page-products section[id] {
  scroll-margin-top: 96px;
}

/* ---------- 首屏 ---------- */
.page-products .prod-hero {
  position: relative;
  padding-top: clamp(5.5rem, 9vw, 7.5rem);
  padding-bottom: clamp(2rem, 4vw, 3.2rem);
  background:
    radial-gradient(circle at 88% 8%, var(--kit-orange-mist) 0%, transparent 52%),
    radial-gradient(circle at 2% 96%, var(--kit-blue-mist) 0%, transparent 58%),
    var(--kit-paper);
}

.page-products .prod-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.6rem, 4vw, 2.8rem);
  align-items: end;
  margin-top: 1.4rem;
}

.page-products .prod-hero__copy .kit-h1 {
  margin: 0.85rem 0 1rem;
  max-width: 22ch;
}

.page-products .prod-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.6rem;
}

.page-products .prod-hero__stats {
  position: relative;
  background: var(--kit-card);
  border: 1px solid var(--kit-rule);
  border-radius: var(--kit-radius);
  padding: 1.15rem 1.2rem 1.3rem;
  box-shadow: 6px 7px 0 var(--kit-orange-mist);
}

.page-products .prod-hero__stats-cap {
  margin: 0;
  font-family: var(--kit-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--kit-ink-soft);
  text-transform: uppercase;
}

.page-products .prod-hero__stats-list {
  list-style: none;
  margin: 0.9rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem 1rem;
}

.page-products .prod-hero__stats-list li {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  padding-bottom: 0.55rem;
  border-bottom: 1px dashed var(--kit-rule);
}

.page-products .prod-hero__stat-num {
  font-family: var(--kit-mono);
  font-size: 1.7rem;
  font-weight: 700;
  line-height: 1;
  color: var(--kit-orange);
}

.page-products .prod-hero__stat-txt {
  font-size: 0.9375rem;
  color: var(--kit-ink-soft);
  line-height: 1.4;
}

/* ---------- 工具切换条 ---------- */
.page-products .prod-switch {
  padding: 0.5rem 0 clamp(1.8rem, 3.5vw, 2.6rem);
}

.page-products .prod-switch__bar {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  scrollbar-width: none;
  padding: 0.45rem;
  border: 1px solid var(--kit-rule);
  border-radius: 999px;
  background: var(--kit-card);
}

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

.page-products .prod-switch__item {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.55rem 1.05rem;
  border-radius: 999px;
  border: 1px solid transparent;
  text-decoration: none;
  color: var(--kit-ink);
  font-weight: 700;
  font-size: 0.95rem;
  transition: background 0.18s var(--kit-ease), border-color 0.18s var(--kit-ease);
}

.page-products .prod-switch__num {
  font-family: var(--kit-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--kit-ink-soft);
  border: 1px solid var(--kit-rule);
  border-radius: 999px;
  padding: 0.08rem 0.38rem;
}

.page-products .prod-switch__item--blue:hover,
.page-products .prod-switch__item--blue:focus-visible {
  background: var(--kit-blue-mist);
  border-color: var(--kit-blue);
}

.page-products .prod-switch__item--teal:hover,
.page-products .prod-switch__item--teal:focus-visible {
  background: var(--kit-teal-mist);
  border-color: var(--kit-teal);
}

.page-products .prod-switch__item--orange:hover,
.page-products .prod-switch__item--orange:focus-visible {
  background: var(--kit-orange-mist);
  border-color: var(--kit-orange);
}

.page-products .prod-switch__item--ink:hover,
.page-products .prod-switch__item--ink:focus-visible {
  background: var(--kit-ink);
  border-color: var(--kit-ink);
  color: var(--kit-on-dark);
}

.page-products .prod-switch__item--ink:hover .prod-switch__num,
.page-products .prod-switch__item--ink:focus-visible .prod-switch__num {
  color: var(--kit-on-dark);
  border-color: rgba(250, 247, 242, 0.4);
}

/* ---------- 通用分区 ---------- */
.page-products .prod-sec {
  position: relative;
  padding: clamp(2.6rem, 5.5vw, 4.5rem) 0;
}

.page-products .prod-sec--blue {
  background: var(--kit-blue-mist);
  border-top: 4px solid var(--kit-blue);
}

.page-products .prod-sec--teal {
  background:
    radial-gradient(ellipse at 92% 4%, var(--kit-teal-mist) 0%, transparent 46%),
    var(--kit-paper);
  border-top: 4px solid var(--kit-teal);
}

.page-products .prod-sec--orange {
  background:
    radial-gradient(ellipse at 10% 2%, var(--kit-orange-mist) 0%, transparent 58%),
    var(--kit-card);
  border-top: 4px solid var(--kit-orange);
}

.page-products .prod-sec--paper {
  background: var(--kit-paper);
  border-top: 4px solid var(--kit-ink);
}

.page-products .prod-sec__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: clamp(0.9rem, 2.5vw, 1.8rem);
  align-items: start;
  margin-bottom: clamp(1.6rem, 3vw, 2.6rem);
}

.page-products .prod-sec__num {
  font-family: var(--kit-mono);
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  font-weight: 700;
  line-height: 0.85;
  color: var(--kit-ink);
  opacity: 0.22;
}

.page-products .prod-sec__kicker {
  display: inline-block;
  margin: 0 0 0.7rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  border: 1px solid var(--kit-rule);
  background: var(--kit-card);
  font-family: var(--kit-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--kit-ink);
}

.page-products .prod-sec__lede {
  margin: 0.75rem 0 0;
  max-width: 62ch;
  color: var(--kit-ink);
  font-size: 1.0625rem;
}

/* ---------- 桌面端总览 ---------- */
.page-products .prod-desktop__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.4rem, 3vw, 2.2rem);
  align-items: start;
}

.page-products .prod-views {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}

.page-products .prod-view {
  background: var(--kit-card);
  border: 1px solid var(--kit-rule);
  border-left: 4px solid var(--kit-blue);
  border-radius: 0 var(--kit-radius) var(--kit-radius) 0;
  padding: 1rem 1.1rem 1.15rem;
  transition: transform 0.22s var(--kit-ease), box-shadow 0.22s var(--kit-ease);
}

.page-products .prod-view:hover {
  transform: translateY(-2px);
  box-shadow: var(--kit-shadow);
}

.page-products .prod-view .kit-h3 {
  margin: 0.5rem 0 0.35rem;
}

.page-products .prod-view p {
  margin: 0;
  font-size: 1rem;
  color: var(--kit-ink-soft);
}

.page-products .prod-ways {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.9rem;
  margin-top: clamp(1.4rem, 3vw, 2rem);
}

.page-products .prod-way {
  padding: 1.15rem 1.25rem;
  background: var(--kit-card);
  border: 1px dashed var(--kit-rule);
  border-radius: var(--kit-radius);
}

.page-products .prod-way .kit-h3 {
  margin: 0 0 0.4rem;
  font-size: 1.2rem;
}

.page-products .prod-way p {
  margin: 0;
  font-size: 1rem;
  color: var(--kit-ink-soft);
}

/* ---------- V3 栏目 12 步 ---------- */
.page-products .prod-guide__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.4rem, 3vw, 2.2rem);
  align-items: start;
}

.page-products .prod-steps {
  display: grid;
  gap: 1.1rem;
}

.page-products .prod-steps__group-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin: 0 0 0.55rem;
  font-family: var(--kit-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--kit-ink-soft);
}

.page-products .prod-steps__group-title span {
  background: var(--kit-teal);
  color: var(--kit-ink);
  border-radius: 999px;
  padding: 0.12rem 0.55rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.page-products .prod-step {
  background: var(--kit-card);
  border: 1px solid var(--kit-rule);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color 0.22s var(--kit-ease);
}

.page-products .prod-step + .prod-step {
  margin-top: 0.5rem;
}

.page-products .prod-step:hover {
  border-color: var(--kit-teal);
}

.page-products .prod-step__btn {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.85rem 1rem;
  background: transparent;
  border: 0;
  text-align: left;
  cursor: pointer;
  font-family: var(--kit-sans);
  font-size: 1rem;
  font-weight: 600;
  color: var(--kit-ink);
  line-height: 1.5;
}

.page-products .prod-step__num {
  flex: 0 0 auto;
  font-family: var(--kit-mono);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--kit-teal);
}

.page-products .prod-step__label {
  flex: 1 1 auto;
  min-width: 0;
}

.page-products .prod-step__icon {
  flex: 0 0 auto;
  margin-left: auto;
  width: 0.7rem;
  height: 0.7rem;
  border-right: 2px solid var(--kit-ink-soft);
  border-bottom: 2px solid var(--kit-ink-soft);
  transform: rotate(45deg);
  transition: transform 0.22s var(--kit-ease);
}

.page-products .prod-step__btn[aria-expanded="true"] .prod-step__icon {
  transform: rotate(-135deg);
}

.page-products .prod-step__panel {
  padding: 0 1rem 1rem 3.3rem;
  background: var(--kit-teal-mist);
  color: var(--kit-ink);
  font-size: 1rem;
}

.page-products .prod-step__panel p {
  margin: 0;
  padding-top: 0.75rem;
}

/* ---------- 换设备与订阅 ---------- */
.page-products .prod-device__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.4rem, 3vw, 2.2rem);
  align-items: center;
}

.page-products .prod-device__copy .kit-h3 {
  margin: 0 0 0.55rem;
}

.page-products .prod-device__copy > p {
  margin: 0;
  font-size: 1.0625rem;
  color: var(--kit-ink-soft);
}

.page-products .prod-checks {
  list-style: none;
  margin: 1.1rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.65rem;
}

.page-products .prod-checks li {
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
  font-size: 1rem;
}

.page-products .prod-checks__tick {
  flex: 0 0 auto;
  position: relative;
  width: 1.15rem;
  height: 1.15rem;
  margin-top: 0.22rem;
  border: 2px solid var(--kit-orange);
  border-radius: 4px;
  background: var(--kit-card);
}

.page-products .prod-checks__tick::after {
  content: "";
  position: absolute;
  left: 0.3rem;
  top: 0.06rem;
  width: 0.36rem;
  height: 0.66rem;
  border-right: 2px solid var(--kit-orange);
  border-bottom: 2px solid var(--kit-orange);
  transform: rotate(40deg);
}

.page-products .prod-device__more {
  margin: 1.1rem 0 0;
  font-size: 1rem;
}

.page-products .prod-device__more a {
  color: var(--kit-blue);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 2px solid var(--kit-blue-mist);
}

.page-products .prod-device__more a:hover {
  border-bottom-color: var(--kit-blue);
}

.page-products .prod-crowd {
  margin-top: clamp(2rem, 4vw, 3rem);
  padding-top: clamp(1.4rem, 3vw, 2rem);
  border-top: 1px dashed var(--kit-rule);
}

.page-products .prod-crowd__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.4rem, 3vw, 2.2rem);
  align-items: start;
}

.page-products .prod-crowd__lede {
  margin: 0.55rem 0 0;
  color: var(--kit-ink-soft);
  font-size: 1.0625rem;
}

.page-products .prod-crowd__list {
  list-style: none;
  margin: 1.1rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 0.6rem;
}

.page-products .prod-crowd__item {
  display: grid;
  grid-template-columns: 0.7rem minmax(0, 1fr);
  column-gap: 0.55rem;
  row-gap: 0.12rem;
  padding: 0.75rem 0.85rem;
  background: var(--kit-card);
  border: 1px solid var(--kit-rule);
  border-radius: 10px;
}

.page-products .prod-crowd__dot {
  grid-column: 1;
  grid-row: 1 / span 2;
  align-self: start;
  width: 0.7rem;
  height: 0.7rem;
  margin-top: 0.42rem;
  border-radius: 50%;
}

.page-products .prod-crowd__dot--o {
  background: var(--kit-orange);
}

.page-products .prod-crowd__dot--b {
  background: var(--kit-blue);
}

.page-products .prod-crowd__dot--t {
  background: var(--kit-teal);
}

.page-products .prod-crowd__item strong {
  grid-column: 2;
  font-size: 1rem;
  line-height: 1.4;
}

.page-products .prod-crowd__item span:not(.prod-crowd__dot) {
  grid-column: 2;
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--kit-ink-soft);
}

/* ---------- 版本演进 ---------- */
.page-products .prod-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
}

.page-products .prod-timeline__item {
  position: relative;
  padding: 1rem 1.1rem 1.15rem;
  background: var(--kit-card);
  border: 1px solid var(--kit-rule);
  border-radius: var(--kit-radius);
}

.page-products .prod-timeline__ver {
  display: inline-block;
  margin-bottom: 0.55rem;
  padding: 0.15rem 0.5rem;
  border-radius: 6px;
  background: var(--kit-ink);
  color: var(--kit-on-dark);
  font-family: var(--kit-mono);
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
}

.page-products .prod-timeline__item .kit-h3 {
  margin: 0 0 0.35rem;
  font-size: 1.2rem;
}

.page-products .prod-timeline__item p {
  margin: 0;
  font-size: 0.9875rem;
  line-height: 1.7;
  color: var(--kit-ink-soft);
}

.page-products .prod-timeline__item--active {
  background: var(--kit-blue-mist);
  border-color: var(--kit-blue);
}

.page-products .prod-timeline__item--active p {
  color: var(--kit-ink);
}

.page-products .prod-timeline__item--active .prod-timeline__ver {
  background: var(--kit-blue);
}

.page-products .prod-version__figure {
  margin-top: clamp(1.4rem, 3vw, 2rem);
}

/* ---------- 更新节奏带 ---------- */
.page-products .prod-band {
  background: var(--kit-ink);
  color: var(--kit-on-dark);
  padding: clamp(2.4rem, 5vw, 4rem) 0;
  border-top: 4px solid var(--kit-orange);
}

.page-products .prod-band__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.4rem, 3.5vw, 2.6rem);
  align-items: start;
}

.page-products .prod-band__kicker {
  display: inline-block;
  margin: 0 0 0.7rem;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  background: var(--kit-orange);
  color: var(--kit-ink);
  font-family: var(--kit-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.page-products .prod-band .kit-h2 {
  color: var(--kit-paper);
  margin: 0 0 0.75rem;
}

.page-products .prod-band__lede {
  margin: 0;
  max-width: 56ch;
  color: var(--kit-on-dark);
  font-size: 1.0625rem;
}

.page-products .prod-cycle__track {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.35rem;
}

.page-products .prod-cycle__track li {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  padding: 0.8rem 0;
  border-top: 1px solid rgba(250, 247, 242, 0.22);
  color: var(--kit-on-dark);
  font-size: 1rem;
}

.page-products .prod-cycle__track li:last-child {
  border-bottom: 1px solid rgba(250, 247, 242, 0.22);
}

.page-products .prod-cycle__dot {
  flex: 0 0 auto;
  width: 0.6rem;
  height: 0.6rem;
  margin-top: 0.5rem;
  border-radius: 50%;
  background: var(--kit-teal);
}

.page-products .prod-band__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.9rem 1.4rem;
  margin-top: clamp(1.6rem, 3vw, 2.4rem);
}

.page-products .prod-band__link {
  color: var(--kit-on-dark);
  text-decoration: none;
  font-weight: 600;
  border-bottom: 1px solid rgba(250, 247, 242, 0.45);
  padding-bottom: 0.12rem;
}

.page-products .prod-band__link:hover {
  border-bottom-color: var(--kit-orange);
  color: var(--kit-paper);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-products .prod-ways {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .prod-timeline__item p {
    font-size: 1rem;
  }
}

@media (min-width: 860px) {
  .page-products .prod-timeline {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0;
  }

  .page-products .prod-timeline__item {
    border-right-width: 0;
    border-radius: 0;
  }

  .page-products .prod-timeline__item:first-child {
    border-radius: var(--kit-radius) 0 0 var(--kit-radius);
  }

  .page-products .prod-timeline__item:last-child {
    border-right-width: 1px;
    border-radius: 0 var(--kit-radius) var(--kit-radius) 0;
  }

  .page-products .prod-band__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }
}

@media (min-width: 900px) {
  .page-products .prod-hero__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  }

  .page-products .prod-desktop__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  }

  .page-products .prod-view:nth-child(2) {
    margin-left: 1rem;
  }

  .page-products .prod-view:nth-child(3) {
    margin-left: 2rem;
  }

  .page-products .prod-device__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
  }
}

@media (min-width: 980px) {
  .page-products .prod-guide__grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  }

  .page-products .prod-guide__figure {
    position: sticky;
    top: 96px;
  }

  .page-products .prod-crowd__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
  }
}

@media (max-width: 480px) {
  .page-products .prod-hero__stats-list {
    grid-template-columns: 1fr;
  }

  .page-products .prod-sec__head {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .page-products .prod-sec__num {
    font-size: 1.8rem;
    opacity: 0.3;
  }

  .page-products .prod-step__panel {
    padding-left: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .prod-view,
  .page-products .prod-step,
  .page-products .prod-step__icon,
  .page-products .prod-switch__item {
    transition: none;
  }

  .page-products .prod-view:hover {
    transform: none;
  }
}
<<<END>>>