.page-products {
  --cat-line: rgba(198, 161, 91, 0.22);
  --cat-panel: rgba(31, 92, 74, 0.4);
  --cat-panel-soft: rgba(31, 92, 74, 0.18);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-products .breadcrumb {
  margin-bottom: clamp(22px, 4vw, 40px);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-products .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5em;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .breadcrumb li + li::before {
  content: "/";
  margin-right: 0.5em;
  color: var(--gold);
  opacity: 0.7;
}

.page-products .breadcrumb a {
  color: var(--paper-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-products .breadcrumb a:hover,
.page-products .breadcrumb a:focus-visible {
  color: var(--gold-bright);
  border-bottom-color: var(--line-gold-strong);
}

/* ---------- 首屏 ---------- */
.page-products .cat-hero {
  position: relative;
  padding: clamp(30px, 6vw, 64px) 0 clamp(64px, 11vw, 120px);
  background:
    radial-gradient(120% 90% at 8% -10%, rgba(31, 92, 74, 0.62), transparent 62%),
    linear-gradient(158deg, var(--ink) 0%, var(--ink-deep) 100%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 46px), 0 100%);
}

.page-products .cat-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-gold-strong), transparent);
}

.page-products .cat-hero__grid {
  display: grid;
  gap: clamp(28px, 5vw, 52px);
  grid-template-columns: minmax(0, 1fr);
}

.page-products .cat-hero__title {
  display: flex;
  flex-direction: column;
  gap: 0.28em;
  margin: 0.5em 0 0;
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: 0.01em;
}

.page-products .cat-hero__title-cn {
  font-size: clamp(2.6rem, 11vw, 5.4rem);
  color: var(--paper);
}

.page-products .cat-hero__title-sub {
  font-size: clamp(1rem, 3.4vw, 1.6rem);
  font-weight: 400;
  color: var(--gold);
  letter-spacing: 0.16em;
}

.page-products .cat-hero__dek {
  max-width: 40em;
  margin: clamp(20px, 3.4vw, 30px) 0 0;
  font-size: clamp(0.95rem, 2.4vw, 1.06rem);
  line-height: 1.85;
  color: var(--paper-soft);
}

.page-products .cat-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3.6vw, 32px);
}

.page-products .cat-hero__meta {
  display: grid;
  gap: 1px;
  align-self: start;
  background: var(--cat-line);
  border: 1px solid var(--cat-line);
}

.page-products .cat-hero__fact {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 16px;
  background: rgba(6, 26, 21, 0.72);
  font-size: 0.86rem;
  color: var(--paper-dim);
  line-height: 1.5;
}

.page-products .cat-hero__fact .num {
  flex: none;
  font-family: var(--font-mono);
  font-size: clamp(1.3rem, 4vw, 1.7rem);
  font-weight: 700;
  color: var(--gold-bright);
  letter-spacing: -0.02em;
}

/* ---------- 区块通用 ---------- */
.page-products .cat-head {
  max-width: 44em;
  margin-bottom: clamp(26px, 4.6vw, 44px);
}

.page-products .cat-head--tight {
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-products .cat-head__title {
  margin: 0.4em 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 5vw, 2.35rem);
  font-weight: 600;
  line-height: 1.28;
  color: var(--paper);
}

.page-products .cat-head__dek {
  margin: 0.9em 0 0;
  font-size: clamp(0.9rem, 2.3vw, 1rem);
  line-height: 1.85;
  color: var(--paper-dim);
}

/* ---------- 双类别总览 ---------- */
.page-products .cat-duo {
  display: grid;
  gap: clamp(20px, 3.6vw, 34px);
  grid-template-columns: minmax(0, 1fr);
}

.page-products .cat-duo__card {
  display: flex;
  flex-direction: column;
  gap: 0.75em;
  padding: clamp(18px, 3.4vw, 28px);
  border: 1px solid var(--cat-line);
  background: linear-gradient(180deg, var(--cat-panel-soft), rgba(6, 26, 21, 0.55));
}

.page-products .cat-duo__media {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border: 1px solid var(--line-gold);
  background: linear-gradient(150deg, var(--celadon), var(--ink-deep));
}

.page-products .cat-duo__card--lib .cat-duo__media {
  aspect-ratio: 3 / 2;
}

.page-products .cat-duo__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-products .cat-duo__eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-products .cat-duo__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 4.4vw, 1.9rem);
  color: var(--gold-bright);
}

.page-products .cat-duo__desc {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--paper-soft);
}

.page-products .cat-duo__points {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 6px;
  font-size: 0.88rem;
  color: var(--paper-dim);
}

.page-products .cat-duo__points li {
  position: relative;
  padding-left: 16px;
}

.page-products .cat-duo__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 7px;
  height: 1px;
  background: var(--gold);
}

.page-products .cat-duo__meta {
  margin: 0.4em 0 0;
  font-size: 0.78rem;
  color: var(--mist);
}

.page-products .cat-duo__meta .num {
  font-family: var(--font-mono);
  color: var(--paper-soft);
}

.page-products .cat-duo__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .cat-duo__link {
  align-self: flex-start;
  margin-top: 0.5em;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--gold-bright);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold-strong);
  padding-bottom: 2px;
}

.page-products .cat-duo__link:hover,
.page-products .cat-duo__link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 目录索引区 ---------- */
.page-products .cat-index {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  grid-template-columns: minmax(0, 1fr);
}

.page-products .cat-rail {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid var(--cat-line);
  background: rgba(6, 26, 21, 0.5);
}

.page-products .cat-rail__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: railcount;
}

.page-products .cat-rail__list li {
  counter-increment: railcount;
}

.page-products .cat-rail__list a {
  display: inline-flex;
  gap: 7px;
  font-size: 0.82rem;
  color: var(--paper-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding: 3px 0;
}

.page-products .cat-rail__list a::before {
  content: counter(railcount, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--gold);
  opacity: 0.75;
}

.page-products .cat-rail__list a:hover,
.page-products .cat-rail__list a:focus-visible,
.page-products .cat-rail__list a.is-active {
  color: var(--gold-bright);
  border-bottom-color: var(--line-gold-strong);
}

.page-products .cat-rail__cloud {
  margin: 0;
}

/* ---------- 类别切换 ---------- */
.page-products .cat-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-products .cat-switch {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(16px, 2.6vw, 22px);
  padding: 6px;
  border: 1px solid var(--cat-line);
  background:
    repeating-linear-gradient(90deg, rgba(244, 238, 223, 0.045) 0 1px, transparent 1px 5px),
    rgba(6, 26, 21, 0.6);
}

.page-products .cat-switch__btn {
  cursor: pointer;
  padding: 9px 15px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--paper-dim);
  border: 1px solid transparent;
  background: transparent;
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.page-products .cat-switch__btn:hover {
  color: var(--paper);
  border-color: var(--line-gold);
}

.page-products #cat-all:checked ~ .cat-switch label[for="cat-all"],
.page-products #cat-acct:checked ~ .cat-switch label[for="cat-acct"],
.page-products #cat-lib:checked ~ .cat-switch label[for="cat-lib"] {
  color: var(--ink-deep);
  background: linear-gradient(180deg, var(--gold-bright), var(--gold));
  border-color: var(--gold-bright);
  font-weight: 700;
}

.page-products #cat-all:focus-visible ~ .cat-switch label[for="cat-all"],
.page-products #cat-acct:focus-visible ~ .cat-switch label[for="cat-acct"],
.page-products #cat-lib:focus-visible ~ .cat-switch label[for="cat-lib"] {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-products #cat-acct:checked ~ .cat-list > .cat-item[data-cat="lib"],
.page-products #cat-lib:checked ~ .cat-list > .cat-item[data-cat="acct"] {
  display: none;
}

/* ---------- 条目列表 ---------- */
.page-products .cat-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .cat-item {
  display: grid;
  gap: 8px 16px;
  grid-template-columns: auto minmax(0, 1fr);
  padding: 16px 18px;
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--line-gold);
  background: rgba(31, 92, 74, 0.14);
  transition: border-color 0.2s ease, background-color 0.2s ease, transform 0.2s ease;
}

.page-products .cat-item:hover {
  border-color: var(--line-gold-strong);
  border-left-color: var(--gold-bright);
  background: rgba(31, 92, 74, 0.26);
}

.page-products .cat-item__no {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.04em;
  padding-top: 0.18em;
}

.page-products .cat-item__main {
  min-width: 0;
}

.page-products .cat-item__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--paper);
}

.page-products .cat-item__note {
  margin: 0.4em 0 0;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--paper-dim);
}

.page-products .cat-item__foot {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px;
}

.page-products .cat-item__time {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--mist);
  letter-spacing: 0.03em;
}

/* ---------- 标签分组 ---------- */
.page-products .cat-tags__grid {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
  grid-template-columns: minmax(0, 1fr);
}

.page-products .cat-tags__groups {
  display: grid;
  gap: clamp(14px, 2.4vw, 20px);
  grid-template-columns: minmax(0, 1fr);
}

.page-products .cat-taggroup {
  padding: 16px 18px;
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--line-gold-strong);
  background: linear-gradient(180deg, rgba(31, 92, 74, 0.22), rgba(6, 26, 21, 0.3));
}

.page-products .cat-taggroup__head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 1.02rem;
  color: var(--gold-bright);
}

.page-products .cat-taggroup__head .num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--mist);
}

.page-products .cat-taggroup .tag-cloud {
  margin: 0 0 10px;
}

.page-products .cat-taggroup__desc {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.72;
  color: var(--paper-dim);
}

.page-products .cat-tags__figure,
.page-products .cat-dual__figure,
.page-products .cat-small__demo .figure {
  margin: 0;
}

.page-products .cat-tags__figure .figure__media,
.page-products .cat-dual__figure .figure__media {
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border: 1px solid var(--line-gold);
  background: linear-gradient(150deg, var(--celadon), var(--ink-deep));
}

.page-products .cat-small__demo .figure__media {
  aspect-ratio: 9 / 16;
  overflow: hidden;
  border: 1px solid var(--line-gold);
  background: linear-gradient(160deg, var(--celadon), var(--ink-deep));
}

.page-products .cat-tags__figure img,
.page-products .cat-dual__figure img,
.page-products .cat-small__demo .figure__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-products .figure__caption {
  margin-top: 8px;
  font-size: 0.74rem;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 双端差异 ---------- */
.page-products .cat-dual__table {
  margin-top: clamp(22px, 3.6vw, 34px);
  border: 1px solid var(--cat-line);
  background: rgba(6, 26, 21, 0.45);
}

.page-products .cat-dual__headrow {
  display: none;
}

.page-products .cat-dual__row {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line-soft);
}

.page-products .cat-dual__row:last-child {
  border-bottom: 0;
}

.page-products .cat-dual__cell {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.72;
  color: var(--paper-soft);
}

.page-products .cat-dual__cell--key {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--gold-bright);
}

.page-products .cat-dual__cell--ios::before,
.page-products .cat-dual__cell--and::before {
  content: "iOS";
  display: inline-block;
  margin-right: 8px;
  padding: 1px 7px;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  color: var(--ink-deep);
  background: var(--gold);
}

.page-products .cat-dual__cell--and::before {
  content: "Android";
  background: var(--clay);
  color: var(--paper);
}

.page-products .cat-dual__tail {
  margin: clamp(16px, 2.6vw, 24px) 0 0;
  font-size: 0.86rem;
  line-height: 1.8;
  color: var(--paper-dim);
}

.page-products .cat-dual__tail a {
  color: var(--gold-bright);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold-strong);
}

.page-products .cat-dual__tail a:hover,
.page-products .cat-dual__tail a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 小屏浏览 ---------- */
.page-products .cat-small__grid {
  display: grid;
  gap: clamp(26px, 4.4vw, 48px);
  grid-template-columns: minmax(0, 1fr);
}

.page-products .cat-small__points {
  margin: clamp(18px, 3vw, 26px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
  font-size: 0.86rem;
  line-height: 1.72;
  color: var(--paper-soft);
}

.page-products .cat-small__points li {
  position: relative;
  padding-left: 20px;
}

.page-products .cat-small__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.58em;
  width: 9px;
  height: 9px;
  border: 1px solid var(--gold);
  transform: rotate(45deg);
}

.page-products .cat-fold {
  margin-top: clamp(18px, 3vw, 26px);
  border: 1px solid var(--cat-line);
  background: rgba(31, 92, 74, 0.2);
}

.page-products .cat-fold summary {
  cursor: pointer;
  padding: 13px 16px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--gold-bright);
  list-style: none;
}

.page-products .cat-fold summary::-webkit-details-marker {
  display: none;
}

.page-products .cat-fold summary::before {
  content: "+";
  display: inline-block;
  width: 1.2em;
  color: var(--cyan);
}

.page-products .cat-fold[open] summary::before {
  content: "−";
}

.page-products .cat-fold__body {
  padding: 0 16px 16px;
  font-size: 0.84rem;
  line-height: 1.78;
  color: var(--paper-dim);
}

.page-products .cat-fold__body p {
  margin: 0 0 0.8em;
}

.page-products .cat-small__demo {
  display: grid;
  gap: clamp(18px, 3vw, 26px);
  align-items: start;
}

.page-products .cat-phone {
  width: 100%;
  max-width: 220px;
  margin-inline: auto;
  aspect-ratio: 9 / 18;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 12px 10px 16px;
  border: 1px solid var(--line-gold-strong);
  border-radius: 22px;
  background: linear-gradient(180deg, #0d3229, #05150f);
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.55), 0 18px 38px rgba(0, 0, 0, 0.45);
}

.page-products .cat-phone__bar {
  display: flex;
  justify-content: center;
  gap: 4px;
  padding-bottom: 4px;
}

.page-products .cat-phone__bar span {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--gold);
  opacity: 0.55;
}

.page-products .cat-phone__screen {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 8px 6px;
  border: 1px solid rgba(63, 208, 201, 0.22);
  border-radius: 12px;
  background: rgba(6, 26, 21, 0.75);
}

.page-products .cat-phone__seg {
  padding: 8px 8px;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.04em;
  color: var(--paper-dim);
  border: 1px solid var(--line-soft);
  border-radius: 2px;
  background: rgba(31, 92, 74, 0.28);
}

.page-products .cat-phone__seg--on {
  color: var(--ink-deep);
  background: linear-gradient(180deg, var(--gold-bright), var(--gold));
  border-color: var(--gold-bright);
}

.page-products .cat-phone__ghost {
  margin-top: auto;
  padding: 7px 8px;
  font-family: var(--font-mono);
  font-size: 0.56rem;
  text-align: center;
  color: var(--mist);
  border: 1px dashed var(--line-soft);
  border-radius: 2px;
}

/* ---------- 检索入口 ---------- */
.page-products .cat-search__panel {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  grid-template-columns: minmax(0, 1fr);
  padding: clamp(20px, 4vw, 40px);
  border: 1px solid var(--line-gold-strong);
  background:
    linear-gradient(135deg, rgba(63, 208, 201, 0.08), transparent 46%),
    linear-gradient(180deg, rgba(31, 92, 74, 0.34), rgba(6, 26, 21, 0.62));
  box-shadow: inset 0 0 0 1px rgba(6, 26, 21, 0.6);
}

.page-products .cat-search__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 28px);
}

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

.page-products .cat-search__range {
  padding: 14px 16px;
  background: rgba(6, 26, 21, 0.78);
}

.page-products .cat-search__range .num {
  display: inline-block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-products .cat-search__range p {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.72;
  color: var(--paper-dim);
}

/* ---------- 延伸阅读 ---------- */
.page-products .cat-more__grid {
  display: grid;
  gap: clamp(22px, 3.6vw, 40px);
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
}

.page-products .cat-more__list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line-soft);
  border-top: 1px solid var(--line-soft);
}

.page-products .cat-more__list li {
  background: var(--ink);
}

.page-products .cat-more__list a {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 4px;
  font-family: var(--font-display);
  font-size: 1.02rem;
  color: var(--paper);
  text-decoration: none;
  transition: color 0.18s ease, padding-left 0.18s ease;
}

.page-products .cat-more__list a span {
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--mist);
}

.page-products .cat-more__list a:hover,
.page-products .cat-more__list a:focus-visible {
  color: var(--gold-bright);
  padding-left: 10px;
}

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

  .page-products .cat-small__demo {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }
}

@media (min-width: 900px) {
  .page-products .cat-hero__grid {
    grid-template-columns: minmax(0, 1.42fr) minmax(0, 0.72fr);
    align-items: end;
  }

  .page-products .cat-hero__meta {
    margin-bottom: 6px;
  }

  .page-products .cat-duo {
    grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
    align-items: start;
  }

  .page-products .cat-duo__card--acct {
    transform: translateY(-14px);
  }

  .page-products .cat-duo__card--lib {
    transform: translateY(24px);
  }

  .page-products .cat-index {
    grid-template-columns: 236px minmax(0, 1fr);
  }

  .page-products .cat-rail {
    position: sticky;
    top: 96px;
    align-self: start;
  }

  .page-products .cat-list {
    gap: 8px;
  }

  .page-products .cat-item {
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: start;
    padding: 15px 20px;
  }

  .page-products .cat-item__foot {
    grid-column: 3;
    flex-wrap: wrap;
    justify-content: flex-end;
    max-width: 260px;
  }

  .page-products .cat-item__time {
    margin-left: 0;
    flex-basis: 100%;
    text-align: right;
  }

  .page-products .cat-tags__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }

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

  .page-products .cat-dual__headrow {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr) minmax(0, 1fr);
    gap: 16px;
    padding: 12px 20px;
    border-bottom: 1px solid var(--line-gold);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--mist);
  }

  .page-products .cat-dual__row {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr) minmax(0, 1fr);
    gap: 16px;
    padding: 18px 20px;
    align-items: start;
  }

  .page-products .cat-dual__cell--ios::before,
  .page-products .cat-dual__cell--and::before {
    display: none;
  }

  .page-products .cat-small__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }

  .page-products .cat-small__demo {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: end;
  }

  .page-products .cat-search__panel {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }

  .page-products .cat-more__grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .cat-item,
  .page-products .cat-switch__btn,
  .page-products .cat-more__list a {
    transition: none;
  }

  .page-products .cat-duo__card--acct,
  .page-products .cat-duo__card--lib {
    transform: none;
  }
}

.page-products {
  --cat-line: rgba(198, 161, 91, 0.22);
  --cat-panel: rgba(31, 92, 74, 0.4);
  --cat-panel-soft: rgba(31, 92, 74, 0.18);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  overflow-x: hidden;
}

.page-products .breadcrumb {
  margin-bottom: clamp(22px, 4vw, 40px);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-products .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5em;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .breadcrumb li + li::before {
  content: "/";
  margin-right: 0.5em;
  color: var(--gold);
  opacity: 0.7;
}

.page-products .breadcrumb a {
  color: var(--paper-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-products .breadcrumb a:hover,
.page-products .breadcrumb a:focus-visible {
  color: var(--gold-bright);
  border-bottom-color: var(--line-gold-strong);
}

/* ---------- 首屏 ---------- */
.page-products .cat-hero {
  position: relative;
  padding: clamp(30px, 6vw, 64px) 0 clamp(64px, 11vw, 120px);
  background:
    radial-gradient(120% 90% at 8% -10%, rgba(31, 92, 74, 0.62), transparent 62%),
    linear-gradient(158deg, var(--ink) 0%, var(--ink-deep) 100%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 46px), 0 100%);
}

.page-products .cat-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-gold-strong), transparent);
}

.page-products .cat-hero__grid {
  display: grid;
  gap: clamp(28px, 5vw, 52px);
  grid-template-columns: minmax(0, 1fr);
}

.page-products .cat-hero__title {
  display: flex;
  flex-direction: column;
  gap: 0.28em;
  margin: 0.5em 0 0;
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.02;
  letter-spacing: 0.01em;
}

.page-products .cat-hero__title-cn {
  font-size: clamp(2.6rem, 11vw, 5.4rem);
  color: var(--paper);
}

.page-products .cat-hero__title-sub {
  font-size: clamp(1rem, 3.4vw, 1.6rem);
  font-weight: 400;
  color: var(--gold);
  letter-spacing: 0.16em;
}

.page-products .cat-hero__dek {
  max-width: 40em;
  margin: clamp(20px, 3.4vw, 30px) 0 0;
  font-size: clamp(0.95rem, 2.4vw, 1.06rem);
  line-height: 1.85;
  color: var(--paper-soft);
}

.page-products .cat-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3.6vw, 32px);
}

.page-products .cat-hero__meta {
  display: grid;
  gap: 1px;
  align-self: start;
  background: var(--cat-line);
  border: 1px solid var(--cat-line);
}

.page-products .cat-hero__fact {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 16px;
  background: rgba(6, 26, 21, 0.72);
  font-size: 0.86rem;
  color: var(--paper-dim);
  line-height: 1.5;
}

.page-products .cat-hero__fact .num {
  flex: none;
  font-family: var(--font-mono);
  font-size: clamp(1.3rem, 4vw, 1.7rem);
  font-weight: 700;
  color: var(--gold-bright);
  letter-spacing: -0.02em;
}

/* ---------- 区块通用 ---------- */
.page-products .cat-head {
  max-width: 44em;
  margin-bottom: clamp(26px, 4.6vw, 44px);
}

.page-products .cat-head--tight {
  margin-bottom: clamp(20px, 3vw, 30px);
}

.page-products .cat-head__title {
  margin: 0.4em 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 5vw, 2.35rem);
  font-weight: 600;
  line-height: 1.28;
  color: var(--paper);
}

.page-products .cat-head__dek {
  margin: 0.9em 0 0;
  font-size: clamp(0.9rem, 2.3vw, 1rem);
  line-height: 1.85;
  color: var(--paper-dim);
}

/* ---------- 双类别总览 ---------- */
.page-products .cat-duo {
  display: grid;
  gap: clamp(20px, 3.6vw, 34px);
  grid-template-columns: minmax(0, 1fr);
}

.page-products .cat-duo__card {
  display: flex;
  flex-direction: column;
  gap: 0.75em;
  padding: clamp(18px, 3.4vw, 28px);
  border: 1px solid var(--cat-line);
  background: linear-gradient(180deg, var(--cat-panel-soft), rgba(6, 26, 21, 0.55));
}

.page-products .cat-duo__media {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border: 1px solid var(--line-gold);
  background: linear-gradient(150deg, var(--celadon), var(--ink-deep));
}

.page-products .cat-duo__card--lib .cat-duo__media {
  aspect-ratio: 3 / 2;
}

.page-products .cat-duo__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-products .cat-duo__eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-products .cat-duo__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 4.4vw, 1.9rem);
  color: var(--gold-bright);
}

.page-products .cat-duo__desc {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--paper-soft);
}

.page-products .cat-duo__points {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 6px;
  font-size: 0.88rem;
  color: var(--paper-dim);
}

.page-products .cat-duo__points li {
  position: relative;
  padding-left: 16px;
}

.page-products .cat-duo__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 7px;
  height: 1px;
  background: var(--gold);
}

.page-products .cat-duo__meta {
  margin: 0.4em 0 0;
  font-size: 0.78rem;
  color: var(--mist);
}

.page-products .cat-duo__meta .num {
  font-family: var(--font-mono);
  color: var(--paper-soft);
}

.page-products .cat-duo__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .cat-duo__link {
  align-self: flex-start;
  margin-top: 0.5em;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  color: var(--gold-bright);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold-strong);
  padding-bottom: 2px;
}

.page-products .cat-duo__link:hover,
.page-products .cat-duo__link:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 目录索引区 ---------- */
.page-products .cat-index {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  grid-template-columns: minmax(0, 1fr);
}

.page-products .cat-rail {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid var(--cat-line);
  background: rgba(6, 26, 21, 0.5);
}

.page-products .cat-rail__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: railcount;
}

.page-products .cat-rail__list li {
  counter-increment: railcount;
}

.page-products .cat-rail__list a {
  display: inline-flex;
  gap: 7px;
  font-size: 0.82rem;
  color: var(--paper-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding: 3px 0;
}

.page-products .cat-rail__list a::before {
  content: counter(railcount, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--gold);
  opacity: 0.75;
}

.page-products .cat-rail__list a:hover,
.page-products .cat-rail__list a:focus-visible,
.page-products .cat-rail__list a.is-active {
  color: var(--gold-bright);
  border-bottom-color: var(--line-gold-strong);
}

.page-products .cat-rail__cloud {
  margin: 0;
}

/* ---------- 类别切换 ---------- */
.page-products .cat-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.page-products .cat-switch {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(16px, 2.6vw, 22px);
  padding: 6px;
  border: 1px solid var(--cat-line);
  background:
    repeating-linear-gradient(90deg, rgba(244, 238, 223, 0.045) 0 1px, transparent 1px 5px),
    rgba(6, 26, 21, 0.6);
}

.page-products .cat-switch__btn {
  cursor: pointer;
  padding: 9px 15px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--paper-dim);
  border: 1px solid transparent;
  background: transparent;
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.page-products .cat-switch__btn:hover {
  color: var(--paper);
  border-color: var(--line-gold);
}

.page-products #cat-all:checked ~ .cat-switch label[for="cat-all"],
.page-products #cat-acct:checked ~ .cat-switch label[for="cat-acct"],
.page-products #cat-lib:checked ~ .cat-switch label[for="cat-lib"] {
  color: var(--ink-deep);
  background: linear-gradient(180deg, var(--gold-bright), var(--gold));
  border-color: var(--gold-bright);
  font-weight: 700;
}

.page-products #cat-all:focus-visible ~ .cat-switch label[for="cat-all"],
.page-products #cat-acct:focus-visible ~ .cat-switch label[for="cat-acct"],
.page-products #cat-lib:focus-visible ~ .cat-switch label[for="cat-lib"] {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-products #cat-acct:checked ~ .cat-list > .cat-item[data-cat="lib"],
.page-products #cat-lib:checked ~ .cat-list > .cat-item[data-cat="acct"] {
  display: none;
}

/* ---------- 条目列表 ---------- */
.page-products .cat-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .cat-item {
  display: grid;
  gap: 8px 16px;
  grid-template-columns: auto minmax(0, 1fr);
  padding: 16px 18px;
  border: 1px solid var(--line-soft);
  border-left: 2px solid var(--line-gold);
  background: rgba(31, 92, 74, 0.14);
  transition: border-color 0.2s ease, background-color 0.2s ease, transform 0.2s ease;
}

.page-products .cat-item:hover {
  border-color: var(--line-gold-strong);
  border-left-color: var(--gold-bright);
  background: rgba(31, 92, 74, 0.26);
}

.page-products .cat-item__no {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.04em;
  padding-top: 0.18em;
}

.page-products .cat-item__main {
  min-width: 0;
}

.page-products .cat-item__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  color: var(--paper);
}

.page-products .cat-item__note {
  margin: 0.4em 0 0;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--paper-dim);
}

.page-products .cat-item__foot {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 7px;
}

.page-products .cat-item__time {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--mist);
  letter-spacing: 0.03em;
}

/* ---------- 标签分组 ---------- */
.page-products .cat-tags__grid {
  display: grid;
  gap: clamp(22px, 4vw, 40px);
  grid-template-columns: minmax(0, 1fr);
}

.page-products .cat-tags__groups {
  display: grid;
  gap: clamp(14px, 2.4vw, 20px);
  grid-template-columns: minmax(0, 1fr);
}

.page-products .cat-taggroup {
  padding: 16px 18px;
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--line-gold-strong);
  background: linear-gradient(180deg, rgba(31, 92, 74, 0.22), rgba(6, 26, 21, 0.3));
}

.page-products .cat-taggroup__head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 1.02rem;
  color: var(--gold-bright);
}

.page-products .cat-taggroup__head .num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--mist);
}

.page-products .cat-taggroup .tag-cloud {
  margin: 0 0 10px;
}

.page-products .cat-taggroup__desc {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.72;
  color: var(--paper-dim);
}

.page-products .cat-tags__figure,
.page-products .cat-dual__figure,
.page-products .cat-small__demo .figure {
  margin: 0;
}

.page-products .cat-tags__figure .figure__media,
.page-products .cat-dual__figure .figure__media {
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border: 1px solid var(--line-gold);
  background: linear-gradient(150deg, var(--celadon), var(--ink-deep));
}

.page-products .cat-small__demo .figure__media {
  aspect-ratio: 9 / 16;
  overflow: hidden;
  border: 1px solid var(--line-gold);
  background: linear-gradient(160deg, var(--celadon), var(--ink-deep));
}

.page-products .cat-tags__figure img,
.page-products .cat-dual__figure img,
.page-products .cat-small__demo .figure__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-products .figure__caption {
  margin-top: 8px;
  font-size: 0.74rem;
  line-height: 1.6;
  color: var(--mist);
}

/* ---------- 双端差异 ---------- */
.page-products .cat-dual__table {
  margin-top: clamp(22px, 3.6vw, 34px);
  border: 1px solid var(--cat-line);
  background: rgba(6, 26, 21, 0.45);
}

.page-products .cat-dual__headrow {
  display: none;
}

.page-products .cat-dual__row {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line-soft);
}

.page-products .cat-dual__row:last-child {
  border-bottom: 0;
}

.page-products .cat-dual__cell {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.72;
  color: var(--paper-soft);
}

.page-products .cat-dual__cell--key {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--gold-bright);
}

.page-products .cat-dual__cell--ios::before,
.page-products .cat-dual__cell--and::before {
  content: "iOS";
  display: inline-block;
  margin-right: 8px;
  padding: 1px 7px;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.06em;
  color: var(--ink-deep);
  background: var(--gold);
}

.page-products .cat-dual__cell--and::before {
  content: "Android";
  background: var(--clay);
  color: var(--paper);
}

.page-products .cat-dual__tail {
  margin: clamp(16px, 2.6vw, 24px) 0 0;
  font-size: 0.86rem;
  line-height: 1.8;
  color: var(--paper-dim);
}

.page-products .cat-dual__tail a {
  color: var(--gold-bright);
  text-decoration: none;
  border-bottom: 1px solid var(--line-gold-strong);
}

.page-products .cat-dual__tail a:hover,
.page-products .cat-dual__tail a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* ---------- 小屏浏览 ---------- */
.page-products .cat-small__grid {
  display: grid;
  gap: clamp(26px, 4.4vw, 48px);
  grid-template-columns: minmax(0, 1fr);
}

.page-products .cat-small__points {
  margin: clamp(18px, 3vw, 26px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
  font-size: 0.86rem;
  line-height: 1.72;
  color: var(--paper-soft);
}

.page-products .cat-small__points li {
  position: relative;
  padding-left: 20px;
}

.page-products .cat-small__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.58em;
  width: 9px;
  height: 9px;
  border: 1px solid var(--gold);
  transform: rotate(45deg);
}

.page-products .cat-fold {
  margin-top: clamp(18px, 3vw, 26px);
  border: 1px solid var(--cat-line);
  background: rgba(31, 92, 74, 0.2);
}

.page-products .cat-fold summary {
  cursor: pointer;
  padding: 13px 16px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.05em;
  color: var(--gold-bright);
  list-style: none;
}

.page-products .cat-fold summary::-webkit-details-marker {
  display: none;
}

.page-products .cat-fold summary::before {
  content: "+";
  display: inline-block;
  width: 1.2em;
  color: var(--cyan);
}

.page-products .cat-fold[open] summary::before {
  content: "−";
}

.page-products .cat-fold__body {
  padding: 0 16px 16px;
  font-size: 0.84rem;
  line-height: 1.78;
  color: var(--paper-dim);
}

.page-products .cat-fold__body p {
  margin: 0 0 0.8em;
}

.page-products .cat-small__demo {
  display: grid;
  gap: clamp(18px, 3vw, 26px);
  align-items: start;
}

.page-products .cat-phone {
  width: 100%;
  max-width: 220px;
  margin-inline: auto;
  aspect-ratio: 9 / 18;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 12px 10px 16px;
  border: 1px solid var(--line-gold-strong);
  border-radius: 22px;
  background: linear-gradient(180deg, #0d3229, #05150f);
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.55), 0 18px 38px rgba(0, 0, 0, 0.45);
}

.page-products .cat-phone__bar {
  display: flex;
  justify-content: center;
  gap: 4px;
  padding-bottom: 4px;
}

.page-products .cat-phone__bar span {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--gold);
  opacity: 0.55;
}

.page-products .cat-phone__screen {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 8px 6px;
  border: 1px solid rgba(63, 208, 201, 0.22);
  border-radius: 12px;
  background: rgba(6, 26, 21, 0.75);
}

.page-products .cat-phone__seg {
  padding: 8px 8px;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.04em;
  color: var(--paper-dim);
  border: 1px solid var(--line-soft);
  border-radius: 2px;
  background: rgba(31, 92, 74, 0.28);
}

.page-products .cat-phone__seg--on {
  color: var(--ink-deep);
  background: linear-gradient(180deg, var(--gold-bright), var(--gold));
  border-color: var(--gold-bright);
}

.page-products .cat-phone__ghost {
  margin-top: auto;
  padding: 7px 8px;
  font-family: var(--font-mono);
  font-size: 0.56rem;
  text-align: center;
  color: var(--mist);
  border: 1px dashed var(--line-soft);
  border-radius: 2px;
}

/* ---------- 检索入口 ---------- */
.page-products .cat-search__panel {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  grid-template-columns: minmax(0, 1fr);
  padding: clamp(20px, 4vw, 40px);
  border: 1px solid var(--line-gold-strong);
  background:
    linear-gradient(135deg, rgba(63, 208, 201, 0.08), transparent 46%),
    linear-gradient(180deg, rgba(31, 92, 74, 0.34), rgba(6, 26, 21, 0.62));
  box-shadow: inset 0 0 0 1px rgba(6, 26, 21, 0.6);
}

.page-products .cat-search__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 28px);
}

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

.page-products .cat-search__range {
  padding: 14px 16px;
  background: rgba(6, 26, 21, 0.78);
}

.page-products .cat-search__range .num {
  display: inline-block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-products .cat-search__range p {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.72;
  color: var(--paper-dim);
}

/* ---------- 延伸阅读 ---------- */
.page-products .cat-more__grid {
  display: grid;
  gap: clamp(22px, 3.6vw, 40px);
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
}

.page-products .cat-more__list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line-soft);
  border-top: 1px solid var(--line-soft);
}

.page-products .cat-more__list li {
  background: var(--ink);
}

.page-products .cat-more__list a {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 4px;
  font-family: var(--font-display);
  font-size: 1.02rem;
  color: var(--paper);
  text-decoration: none;
  transition: color 0.18s ease, padding-left 0.18s ease;
}

.page-products .cat-more__list a span {
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--mist);
}

.page-products .cat-more__list a:hover,
.page-products .cat-more__list a:focus-visible {
  color: var(--gold-bright);
  padding-left: 10px;
}

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

  .page-products .cat-small__demo {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
  }
}

@media (min-width: 900px) {
  .page-products .cat-hero__grid {
    grid-template-columns: minmax(0, 1.42fr) minmax(0, 0.72fr);
    align-items: end;
  }

  .page-products .cat-hero__meta {
    margin-bottom: 6px;
  }

  .page-products .cat-duo {
    grid-template-columns: minmax(0, 0.86fr) minmax(0, 1.14fr);
    align-items: start;
  }

  .page-products .cat-duo__card--acct {
    transform: translateY(-14px);
  }

  .page-products .cat-duo__card--lib {
    transform: translateY(24px);
  }

  .page-products .cat-index {
    grid-template-columns: 236px minmax(0, 1fr);
  }

  .page-products .cat-rail {
    position: sticky;
    top: 96px;
    align-self: start;
  }

  .page-products .cat-list {
    gap: 8px;
  }

  .page-products .cat-item {
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: start;
    padding: 15px 20px;
  }

  .page-products .cat-item__foot {
    grid-column: 3;
    flex-wrap: wrap;
    justify-content: flex-end;
    max-width: 260px;
  }

  .page-products .cat-item__time {
    margin-left: 0;
    flex-basis: 100%;
    text-align: right;
  }

  .page-products .cat-tags__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }

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

  .page-products .cat-dual__headrow {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr) minmax(0, 1fr);
    gap: 16px;
    padding: 12px 20px;
    border-bottom: 1px solid var(--line-gold);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--mist);
  }

  .page-products .cat-dual__row {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr) minmax(0, 1fr);
    gap: 16px;
    padding: 18px 20px;
    align-items: start;
  }

  .page-products .cat-dual__cell--ios::before,
  .page-products .cat-dual__cell--and::before {
    display: none;
  }

  .page-products .cat-small__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }

  .page-products .cat-small__demo {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: end;
  }

  .page-products .cat-search__panel {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }

  .page-products .cat-more__grid {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .cat-item,
  .page-products .cat-switch__btn,
  .page-products .cat-more__list a {
    transition: none;
  }

  .page-products .cat-duo__card--acct,
  .page-products .cat-duo__card--lib {
    transform: none;
  }
}