.page-products {
  --pd-pad: clamp(16px, 4vw, 40px);
  --pd-sec-y: clamp(44px, 6vw, 84px);
  --pd-gap: clamp(10px, 1.5vw, 18px);
  position: relative;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--char);
}

.page-products .pd-inner {
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--pd-pad);
}

.page-products .pd-sec {
  padding-block: var(--pd-sec-y);
}

.page-products .pd-sec + .pd-sec {
  border-top: 1px solid var(--line);
}

.page-products figure {
  margin: 0;
}

.page-products img {
  max-width: 100%;
  height: auto;
}

/* ---------- 首屏 ---------- */

.page-products .pd-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line-2);
  background-color: var(--paper-2);
  background-image:
    linear-gradient(rgba(15, 59, 46, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 59, 46, .07) 1px, transparent 1px);
  background-size: 48px 48px;
}

.page-products .pd-hero__wrap {
  position: relative;
  z-index: 1;
  padding-block: clamp(26px, 4.6vw, 62px);
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

.page-products .crumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: var(--fs-12);
  color: var(--graphite);
}

.page-products .crumbs a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--line-2);
}

.page-products .crumbs a:hover,
.page-products .crumbs a:focus-visible {
  border-bottom-color: var(--orange);
}

.page-products .pd-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 18px 0 0;
  padding: 5px 11px 5px 9px;
  background: var(--ink);
  color: var(--cream);
  font-size: var(--fs-12);
  font-weight: 700;
  letter-spacing: .1em;
}

.page-products .pd-hero__eyebrow::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--orange);
  flex: none;
}

.page-products .pd-hero h1 {
  margin: 16px 0 0;
  font-size: clamp(28px, 4.4vw, 49px);
  line-height: 1.18;
  letter-spacing: -.02em;
  font-weight: 900;
  color: var(--ink);
  max-width: 15em;
}

.page-products .pd-hero__lede {
  margin: 18px 0 0;
  max-width: 40em;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--char);
}

.page-products .pd-hero__actions {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-products .pd-hero__board {
  background: var(--paper);
  border: 1px solid var(--line-2);
  border-left: 4px solid var(--orange);
  padding: 18px 18px 20px;
  box-shadow: 8px 8px 0 rgba(15, 59, 46, .1);
}

.page-products .pd-hero__board-title {
  margin: 0;
  font-size: var(--fs-12);
  letter-spacing: .14em;
  color: var(--graphite);
}

.page-products .pd-facts {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-2);
  border: 1px solid var(--line-2);
}

.page-products .pd-fact {
  background: var(--paper);
  padding: 12px 12px 13px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.page-products .pd-fact__k {
  font-size: var(--fs-25);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.01em;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.page-products .pd-fact__v {
  font-size: var(--fs-12);
  color: var(--graphite);
}

.page-products .pd-hero__board-note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line-2);
  font-size: var(--fs-12);
  color: var(--graphite);
}

@media (min-width: 960px) {
  .page-products .pd-hero::before {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 44%;
    background: linear-gradient(158deg, var(--ink) 0%, var(--ink-deep) 100%);
    clip-path: polygon(34% 0, 100% 0, 100% 100%, 0 100%);
  }

  .page-products .pd-hero__wrap {
    grid-template-columns: minmax(0, 1fr) minmax(300px, 400px);
    align-items: center;
    gap: clamp(32px, 4vw, 56px);
  }
}

/* ---------- 章节公共 ---------- */

.page-products .pd-sec__head {
  max-width: 100%;
}

.page-products .sec-num {
  display: inline-block;
  padding: 3px 9px;
  margin-bottom: 14px;
  background: var(--ink);
  color: var(--orange-soft);
  font-size: var(--fs-12);
  letter-spacing: .14em;
}

.page-products .pd-sec__head h2 {
  margin: 0;
  font-size: clamp(24px, 3.2vw, 39px);
  font-weight: 900;
  line-height: 1.26;
  letter-spacing: -.02em;
  color: var(--ink);
  max-width: 20em;
}

.page-products .pd-sec__lede {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: var(--fs-16);
  line-height: 1.8;
  color: var(--graphite);
}

/* ---------- 01 资料库全貌 ---------- */

.page-products .pd-overview__body {
  margin-top: clamp(24px, 3vw, 42px);
  display: grid;
  gap: clamp(20px, 2.6vw, 32px);
}

.page-products .pd-overview__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--pd-gap);
}

.page-products .pd-cat {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 104px;
  min-width: 0;
  padding: 13px 13px 15px;
  background: var(--paper);
  border: 1px solid var(--line-2);
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}

.page-products .pd-cat:hover {
  transform: translateY(-2px);
  border-color: var(--orange);
  box-shadow: 4px 4px 0 rgba(255, 107, 26, .18);
}

.page-products .pd-cat__name {
  margin: 0;
  font-size: var(--fs-14);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--char);
}

.page-products .pd-cat__num {
  margin: 0;
  font-size: var(--fs-20);
  font-weight: 700;
  line-height: 1;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.page-products .pd-cat__bar {
  display: block;
  margin-top: auto;
  height: 8px;
  background: var(--paper-2);
  border: 1px solid var(--line);
}

.page-products .pd-cat__fill {
  display: block;
  height: 100%;
  background: var(--orange);
}

@media (min-width: 620px) {
  .page-products .pd-overview__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-products .pd-overview__body {
    grid-template-columns: minmax(0, 1.55fr) minmax(240px, .8fr);
    align-items: start;
  }
}

@media (min-width: 1100px) {
  .page-products .pd-overview__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .pd-cat--wide {
    grid-column: span 2;
  }

  .page-products .pd-cat:nth-child(3n) {
    margin-top: 18px;
  }

  .page-products .pd-cat:nth-child(5n) {
    margin-top: 9px;
  }
}

.page-products .pd-overview__fig {
  margin-top: 0;
}

.page-products .pd-overview__fig .figure__frame {
  border: 1px solid var(--line-2);
  background: var(--ink);
}

.page-products .pd-indexbar {
  margin-top: clamp(22px, 3vw, 34px);
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .pd-indexbar__cell {
  background: var(--ink);
  color: var(--paper);
  padding: 18px 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-products .pd-indexbar__num {
  margin: 0;
  font-size: var(--fs-25);
  font-weight: 700;
  line-height: 1;
  color: var(--orange-soft);
  font-variant-numeric: tabular-nums;
}

.page-products .pd-indexbar__cell p:last-child {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: rgba(246, 241, 228, .82);
}

@media (min-width: 780px) {
  .page-products .pd-indexbar {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 02 旧版本档案室 ---------- */

.page-products .pd-archive__body {
  margin-top: clamp(24px, 3vw, 42px);
  display: grid;
  gap: clamp(22px, 3vw, 36px);
}

.page-products .pd-archive__fig .figure__frame {
  border: 1px solid var(--line-2);
  background: var(--paper-2);
}

.page-products .pd-archive__intro {
  margin: 0;
  max-width: 56ch;
  font-size: var(--fs-16);
  line-height: 1.85;
  color: var(--char);
}

.page-products .pd-ticks {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 6px;
}

.page-products .pd-tick {
  padding: 9px 2px 7px;
  text-align: center;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-top: 3px solid var(--ink);
  color: var(--graphite);
  font-size: var(--fs-12);
  transition: background-color .16s ease, color .16s ease, border-color .16s ease;
}

.page-products .pd-tick .mono {
  font-size: var(--fs-12);
  font-variant-numeric: tabular-nums;
}

.page-products .pd-tick:hover {
  background: var(--ink);
  color: var(--cream);
  border-color: var(--ink);
  border-top-color: var(--orange);
}

.page-products .pd-tick--now {
  background: var(--ink);
  color: var(--cream);
  border-color: var(--ink);
  border-top-color: var(--orange);
}

@media (min-width: 560px) {
  .page-products .pd-ticks {
    grid-template-columns: repeat(8, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-products .pd-archive__body {
    grid-template-columns: minmax(240px, 340px) minmax(0, 1fr);
    align-items: start;
  }

  .page-products .pd-ticks {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }
}

.page-products .pd-archive__card {
  margin-top: 24px;
  padding: 16px 18px 18px;
  background: var(--paper-2);
  border: 1px solid var(--line-2);
  border-left: 4px solid var(--orange);
}

.page-products .pd-archive__card-title {
  margin: 0 0 12px;
  font-size: var(--fs-14);
  font-weight: 700;
  color: var(--ink);
}

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

.page-products .pd-archive__list li {
  position: relative;
  padding-left: 18px;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--char);
}

.page-products .pd-archive__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 9px;
  height: 2px;
  background: var(--teal);
}

/* ---------- 03 版本并排比对 ---------- */

.page-products .pd-compare__fig {
  margin-top: clamp(24px, 3vw, 38px);
}

.page-products .pd-compare__fig .figure__frame {
  border: 1px solid var(--line-2);
  background: var(--ink);
}

.page-products .pd-compare__grid {
  margin-top: clamp(18px, 2.6vw, 30px);
  display: grid;
  gap: var(--pd-gap);
}

.page-products .pd-compare__pick,
.page-products .pd-compare__dims {
  padding: 18px 18px 20px;
  background: var(--paper);
  border: 1px solid var(--line-2);
}

.page-products .pd-compare__label {
  margin: 0 0 14px;
  font-size: var(--fs-12);
  letter-spacing: .1em;
  color: var(--graphite);
}

.page-products .pd-compare__slots {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-products .pd-compare__slot {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 12px;
  background: var(--paper-2);
  border: 1px solid var(--line);
  font-size: var(--fs-14);
  color: var(--char);
}

.page-products .pd-compare__slot .mono {
  flex: none;
  padding: 3px 9px;
  background: var(--ink);
  color: var(--cream);
  font-size: var(--fs-12);
  font-variant-numeric: tabular-nums;
}

.page-products .pd-compare__slot:first-child .mono {
  background: var(--orange);
  color: var(--char);
}

.page-products .pd-compare__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .pd-compare__list li {
  position: relative;
  padding-left: 20px;
  font-size: var(--fs-14);
  line-height: 1.72;
  color: var(--char);
}

.page-products .pd-compare__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 10px;
  height: 2px;
  background: var(--orange);
}

@media (min-width: 760px) {
  .page-products .pd-compare__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ---------- 04 安卓端功能 ---------- */

.page-products .pd-app__body {
  margin-top: clamp(24px, 3vw, 42px);
  display: grid;
  gap: clamp(22px, 3vw, 36px);
}

.page-products .pd-app__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line-2);
  border-block: 1px solid var(--line-2);
}

.page-products .pd-app__item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 18px 14px 19px;
  background: var(--paper);
  transition: background-color .16s ease;
}

.page-products .pd-app__item:hover {
  background: var(--paper-2);
}

.page-products .pd-app__idx {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 24px;
  margin-top: 2px;
  background: var(--ink);
  color: var(--orange-soft);
  font-size: var(--fs-12);
  letter-spacing: .06em;
}

.page-products .pd-app__item h3 {
  margin: 0 0 6px;
  font-size: var(--fs-16);
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
}

.page-products .pd-app__item p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.78;
  color: var(--char);
}

.page-products .pd-app__fig .figure__frame {
  border: 1px solid var(--line-2);
  background: var(--paper-2);
}

@media (min-width: 960px) {
  .page-products .pd-app__body {
    grid-template-columns: minmax(0, 1fr) minmax(260px, 360px);
    align-items: start;
  }
}

/* ---------- 05 更新节奏 ---------- */

.page-products .pd-cadence__grid {
  margin-top: clamp(24px, 3vw, 42px);
  display: grid;
  gap: var(--pd-gap);
}

.page-products .pd-beat {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-height: 168px;
  padding: 18px 16px 20px;
  background: var(--paper);
  border: 1px solid var(--line-2);
  border-top: 4px solid var(--ink);
}

.page-products .pd-beat:nth-child(2) {
  border-top-color: var(--orange);
}

.page-products .pd-beat:nth-child(3) {
  border-top-color: var(--teal);
}

.page-products .pd-beat__when {
  margin: 0;
  font-size: var(--fs-12);
  letter-spacing: .04em;
  color: var(--graphite);
}

.page-products .pd-beat h3 {
  margin: 0;
  font-size: var(--fs-20);
  font-weight: 900;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-products .pd-beat p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.78;
  color: var(--char);
}

.page-products .pd-cadence__tip {
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: 14px 16px;
  background: var(--paper-2);
  border-left: 4px solid var(--ink);
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--char);
}

.page-products .pd-cadence__tip a {
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
  border-bottom: 1px solid var(--orange);
}

.page-products .pd-cadence__tip a:hover {
  color: var(--orange);
}

@media (min-width: 700px) {
  .page-products .pd-cadence__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1100px) {
  .page-products .pd-cadence__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- 06 适用人群 ---------- */

.page-products .pd-who__grid {
  margin-top: clamp(24px, 3vw, 42px);
  display: grid;
  gap: var(--pd-gap);
}

.page-products .pd-who__card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px 18px 22px;
  background: var(--paper-2);
  border: 1px solid var(--line-2);
}

.page-products .pd-who__tag {
  align-self: flex-start;
  margin: 0;
  padding: 3px 10px;
  border: 1px solid var(--ink);
  color: var(--ink);
  font-size: var(--fs-12);
  letter-spacing: .06em;
}

.page-products .pd-who__card h3 {
  margin: 0;
  font-size: var(--fs-20);
  font-weight: 900;
  line-height: 1.4;
  color: var(--ink);
}

.page-products .pd-who__card p:last-child {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.8;
  color: var(--char);
}

.page-products .pd-who__card--ink {
  background: var(--ink);
  border-color: var(--ink);
}

.page-products .pd-who__card--ink .pd-who__tag {
  border-color: var(--orange);
  background: var(--orange);
  color: var(--char);
}

.page-products .pd-who__card--ink h3 {
  color: var(--paper);
}

.page-products .pd-who__card--ink p:last-child {
  color: rgba(246, 241, 228, .86);
}

.page-products .pd-who__fig {
  margin-top: clamp(22px, 3vw, 36px);
}

.page-products .pd-who__fig .figure__frame {
  border: 1px solid var(--line-2);
  background: var(--paper-2);
}

@media (min-width: 780px) {
  .page-products .pd-who__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: stretch;
  }
}

/* ---------- 07 下一步 ---------- */

.page-products .pd-next__grid {
  margin-top: clamp(22px, 3vw, 36px);
  display: grid;
  gap: var(--pd-gap);
}

.page-products .pd-next__item {
  display: block;
  padding: 20px 18px 22px;
  background: var(--paper);
  border: 1px solid var(--line-2);
  color: inherit;
  text-decoration: none;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
}

.page-products .pd-next__item:hover,
.page-products .pd-next__item:focus-visible {
  transform: translateY(-2px);
  border-color: var(--orange);
  box-shadow: 5px 5px 0 rgba(255, 107, 26, .2);
  outline: none;
}

.page-products .pd-next__k {
  display: inline-block;
  margin-bottom: 12px;
  font-size: var(--fs-20);
  color: var(--orange);
  line-height: 1;
}

.page-products .pd-next__item h3 {
  margin: 0 0 8px;
  font-size: var(--fs-16);
  font-weight: 700;
  color: var(--ink);
}

.page-products .pd-next__item p {
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.78;
  color: var(--char);
}

@media (min-width: 780px) {
  .page-products .pd-next__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}