.page-products {
  --pp-hair: rgba(198, 208, 214, .2);
  --pp-hair-ink: rgba(15, 20, 24, .12);
  --pp-ink-soft: rgba(15, 20, 24, .74);
}

/* ---------- 首屏 ---------- */

.page-products__hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(22px, 4vw, 44px) clamp(28px, 6vw, 64px);
}

.page-products__hero::before {
  content: "";
  position: absolute;
  inset: -30% -20% auto -35%;
  height: 78%;
  background: radial-gradient(58% 62% at 22% 58%, rgba(18, 167, 154, .22), transparent 72%);
  pointer-events: none;
  z-index: 0;
}

.page-products__hero>* {
  position: relative;
  z-index: 1;
}

.page-products__heroGrid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 48px);
  align-items: start;
}

.page-products__heroMain .display {
  margin: 14px 0 0;
  max-width: 15em;
}

.page-products__heroMain .lede {
  margin: 18px 0 0;
  max-width: 36em;
}

.page-products__tocWrap {
  border-top: 1px solid var(--pp-hair);
  padding-top: 16px;
}

.page-products__tocWrap .label {
  display: block;
  margin-bottom: 4px;
}

.page-products__toc {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products__toc .coord-list__item {
  margin: 0;
}

.page-products__toc a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  min-height: 44px;
  padding: 11px 2px;
  border-bottom: 1px solid var(--pp-hair);
  color: var(--text-dim);
  text-decoration: none;
  font-size: var(--step-2);
  letter-spacing: .02em;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products__toc a:hover,
.page-products__toc a:focus-visible {
  color: var(--lake-bright);
  border-bottom-color: var(--lake);
}

.page-products__toc a.is-active {
  color: var(--salt);
  border-bottom-color: var(--lake);
}

.page-products__toc .coord-list__idx {
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--step-1);
  letter-spacing: .1em;
  color: var(--slate);
}

/* ---------- 通用模块 ---------- */

.page-products__mod {
  position: relative;
}

.page-products__head {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 44em;
  margin-bottom: clamp(22px, 4vw, 38px);
}

.page-products__head .label {
  align-self: flex-start;
}

.page-products__fig {
  margin: 0 0 clamp(22px, 4vw, 38px);
}

.page-products .section--paper {
  color: var(--ink);
}

.page-products .section--paper .lede {
  color: var(--pp-ink-soft);
}

.page-products .section--paper .prose {
  color: var(--pp-ink-soft);
}

/* ---------- 模块 01 四级结构 ---------- */

.page-products__levels {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--pp-hair-ink);
  border: 1px solid var(--pp-hair-ink);
}

.page-products__level {
  background: var(--salt);
  padding: 20px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-products__level h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--step-5);
  font-weight: 600;
  line-height: 1.25;
}

.page-products__level p {
  margin: 0;
  font-size: var(--step-3);
  line-height: 1.72;
  color: var(--pp-ink-soft);
}

.page-products__levelIdx {
  font-size: var(--step-2);
  letter-spacing: .14em;
  color: var(--lake);
}

.page-products__note {
  margin: clamp(22px, 4vw, 34px) 0 0;
  padding-left: 18px;
  border-left: 2px solid var(--lake);
  max-width: 40em;
}

/* ---------- 模块 02 伤停 ---------- */

.page-products__split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 42px);
  align-items: start;
  margin-bottom: clamp(22px, 4vw, 36px);
}

.page-products__splitMain {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-products__splitMain .h2 {
  margin: 0;
}

.page-products__splitMain .lede,
.page-products__splitMain .prose {
  margin: 0;
}

.page-products__splitMain .label {
  align-self: flex-start;
}

.page-products__splitFig {
  margin: 0;
}

.page-products__cta {
  margin: 8px 0 0;
}

.page-products__filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(18px, 3vw, 26px);
}

.page-products__filter .filter__btn {
  appearance: none;
  background: transparent;
  border: 1px solid var(--rule-soft);
  color: var(--text-dim);
  font-family: inherit;
  font-size: var(--step-2);
  letter-spacing: .04em;
  padding: 8px 14px;
  min-height: 40px;
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-products__filter .filter__btn:hover {
  border-color: var(--lake);
  color: var(--salt);
}

.page-products__filter .filter__btn[aria-pressed="true"] {
  border-color: var(--lake);
  color: var(--salt);
  background: rgba(18, 167, 154, .16);
}

.page-products__cards,
.page-products__clips {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--rule-faint);
  border: 1px solid var(--rule-soft);
}

.page-products__card,
.page-products__clip {
  background: var(--night);
  padding: 22px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-products__card[hidden],
.page-products__clip[hidden] {
  display: none;
}

.page-products__card h3,
.page-products__clip h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--step-4);
  font-weight: 600;
  line-height: 1.35;
  color: var(--salt);
}

.page-products__card p,
.page-products__clip p {
  margin: 0;
  font-size: var(--step-3);
  line-height: 1.72;
  color: var(--text-dim);
}

.page-products__card .tag {
  align-self: flex-start;
}

.page-products__clipDur {
  font-size: var(--step-5);
  font-weight: 700;
  letter-spacing: .02em;
  line-height: 1.1;
}

/* ---------- 数据带 ---------- */

.page-products__stats {
  background: var(--stand);
  border-top: 1px solid var(--rule-soft);
  border-bottom: 1px solid var(--rule-soft);
}

.page-products__statList {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--rule-faint);
}

.page-products__stat {
  background: var(--stand);
  padding: 18px 16px;
  min-width: 0;
}

.page-products__stat dt {
  margin: 0;
  font-size: var(--step-1);
  letter-spacing: .12em;
  color: var(--slate);
  line-height: 1.5;
}

.page-products__stat dd {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: var(--step-5);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--data);
  line-height: 1.1;
}

.page-products__unit {
  font-family: var(--font-body);
  font-size: var(--step-2);
  font-weight: 500;
  letter-spacing: 0;
  color: var(--text-dim);
  margin-left: 3px;
}

/* ---------- 模块 04 订阅 ---------- */

.page-products__dims {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--pp-hair-ink);
  border: 1px solid var(--pp-hair-ink);
}

.page-products__dim {
  background: var(--salt);
  padding: 18px;
}

.page-products__dim summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 32px;
  font-family: var(--font-display);
  font-size: var(--step-4);
  font-weight: 600;
  color: var(--ink);
}

.page-products__dim summary::-webkit-details-marker {
  display: none;
}

.page-products__dim summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--step-5);
  line-height: 1;
  color: var(--lake);
  transition: transform var(--dur) var(--ease);
}

.page-products__dim[open] summary::after {
  transform: rotate(45deg);
}

.page-products__dim p {
  margin: 12px 0 0;
  font-size: var(--step-3);
  line-height: 1.72;
  color: var(--pp-ink-soft);
}

/* ---------- 使用流程 ---------- */

.page-products__flow {
  position: relative;
}

.page-products__band {
  position: relative;
  margin: 0 0 clamp(26px, 5vw, 48px);
  overflow: hidden;
  border-top: 1px solid var(--rule-soft);
  border-bottom: 1px solid var(--rule-soft);
}

.page-products__band img {
  display: block;
  width: 100%;
  height: clamp(190px, 34vw, 360px);
  object-fit: cover;
  opacity: .5;
}

.page-products__bandText {
  position: absolute;
  inset: auto 0 0 0;
  padding: clamp(20px, 4vw, 44px) clamp(20px, 5vw, 72px);
  background: linear-gradient(to top, rgba(6, 18, 28, .94), rgba(6, 18, 28, 0));
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-products__bandText .h2 {
  margin: 0;
  max-width: 18em;
}

.page-products__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--rule-faint);
  border-top: 1px solid var(--rule-soft);
  border-bottom: 1px solid var(--rule-soft);
}

.page-products__step {
  background: transparent;
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  outline: none;
  cursor: default;
  transition: background-color var(--dur) var(--ease);
}

.page-products__step:hover,
.page-products__step:focus-visible {
  background: rgba(18, 167, 154, .1);
}

.page-products__step:focus-visible {
  box-shadow: inset 0 0 0 1px var(--lake-bright);
}

.page-products__step h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--step-4);
  font-weight: 600;
  color: var(--salt);
}

.page-products__step p {
  margin: 0;
  font-size: var(--step-3);
  line-height: 1.72;
  color: var(--text-dim);
}

.page-products__stepIdx {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--rule-soft);
  font-size: var(--step-3);
  font-weight: 700;
  color: var(--lake);
}

/* ---------- 适用场景 ---------- */

.page-products__sceneList {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 32px);
}

.page-products__scene {
  border-top: 2px solid var(--ink);
  padding-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-products__scene h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--step-5);
  font-weight: 600;
  line-height: 1.3;
}

.page-products__scene p {
  margin: 0;
  font-size: var(--step-3);
  line-height: 1.75;
  color: var(--pp-ink-soft);
}

.page-products__outro {
  margin: clamp(26px, 4vw, 40px) 0 0;
  max-width: 42em;
}

.page-products__outro a {
  color: var(--lake);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-products__outro a:hover {
  color: var(--ink);
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {

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

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

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

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

@media (min-width: 840px) {

  .page-products__heroGrid {
    grid-template-columns: minmax(0, 7fr) minmax(230px, 3fr);
  }

  .page-products__styles {
    display: block;
  }

  .page-products__levels {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products__split {
    grid-template-columns: minmax(0, 7fr) minmax(250px, 4fr);
  }

  .page-products__split--reverse {
    grid-template-columns: minmax(250px, 4fr) minmax(0, 7fr);
  }

  .page-products__split--reverse .page-products__splitMain {
    grid-column: 2;
    grid-row: 1;
  }

  .page-products__split--reverse .page-products__splitFig {
    grid-column: 1;
    grid-row: 1;
  }

  .page-products__steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {

  .page-products__cards,
  .page-products__clips {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products__statList {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {

  .page-products__toc a,
  .page-products__filter .filter__btn,
  .page-products__step,
  .page-products__dim summary::after {
    transition: none;
  }
}