.page-products {
  --prod-gutter: clamp(16px, 3vw, 40px);
  background: var(--ink);
  color: var(--white);
  overflow-x: clip;
}

.page-products .eyebrow {
  margin: 0 0 12px;
}

.page-products h2 {
  font-family: var(--font-display);
  font-size: clamp(24px, 4vw, 40px);
  line-height: 1.12;
  letter-spacing: -.02em;
  margin: 0 0 12px;
}

.page-products h3 {
  font-family: var(--font-display);
  font-size: clamp(19px, 2.4vw, 24px);
  letter-spacing: -.01em;
  margin: 0 0 8px;
}

.page-products p {
  margin: 0 0 12px;
  line-height: 1.75;
}

/* ---------- hero ---------- */
.page-products .prod-hero {
  position: relative;
  border-bottom: var(--line);
  padding-block: clamp(20px, 4vw, 44px) clamp(32px, 5vw, 64px);
  background:
    radial-gradient(120% 90% at 88% 4%, rgba(53, 242, 208, .14), transparent 62%),
    radial-gradient(80% 70% at 4% 100%, rgba(119, 113, 132, .16), transparent 60%),
    var(--ink);
}

.page-products .prod-hero__grid {
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: end;
}

.page-products .prod-hero__copy h1 {
  font-family: var(--font-display);
  font-size: clamp(38px, 8.6vw, 104px);
  line-height: .92;
  letter-spacing: -.035em;
  margin: 0 0 clamp(16px, 2.4vw, 28px);
  color: var(--white);
}

.page-products .prod-hero__lede {
  max-width: 56ch;
  font-size: clamp(15px, 1.6vw, 17px);
  color: var(--white);
}

.page-products .prod-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 22px 0 28px;
}

.page-products .prod-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px;
  margin: 0;
  border-top: var(--line);
  padding-top: 16px;
}

.page-products .prod-hero__stat {
  padding: 10px 12px 10px 0;
}

.page-products .prod-hero__stat dt {
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--violet);
  margin-bottom: 4px;
}

.page-products .prod-hero__stat dd {
  margin: 0;
  font-size: clamp(18px, 2.4vw, 26px);
  color: var(--cyan);
}

.page-products .prod-hero__media {
  margin: 0;
  border: var(--line);
  box-shadow: var(--shadow-hard);
  background: var(--ink-2);
}

.page-products .prod-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 16 / 10;
  filter: saturate(.95);
}

.page-products .prod-hero__media .media__caption {
  padding: 8px 12px;
  font-size: 12px;
  color: var(--violet);
  border-top: var(--line);
  background: var(--ink);
}

/* ---------- 四个板块 ---------- */
.page-products .prod-center {
  padding-block: clamp(36px, 5vw, 72px);
  background: var(--ink);
  border-bottom: var(--line);
}

.page-products .prod-center__head {
  max-width: 70ch;
  margin-bottom: clamp(20px, 3vw, 36px);
}

.page-products .prod-center__intro {
  color: var(--white);
  opacity: .84;
}

.page-products .prod-center__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-bottom: var(--line);
}

.page-products .prod-center__item {
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr);
  gap: 4px 16px;
  padding: 20px 0;
  border-top: var(--line);
  transition: background-color .16s var(--ease);
}

.page-products .prod-center__item:hover {
  background: var(--ink-2);
}

.page-products .prod-center__num {
  font-size: 20px;
  color: var(--orange);
  letter-spacing: .04em;
}

.page-products .prod-center__body p {
  margin: 0;
  font-size: 15px;
  color: var(--white);
  opacity: .86;
}

.page-products .prod-center__link {
  grid-column: 2;
  justify-self: start;
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
}

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

/* ---------- 四步流程 ---------- */
.page-products .prod-flow {
  padding-block: clamp(36px, 5vw, 72px);
  background:
    linear-gradient(180deg, rgba(19, 24, 27, .9), rgba(11, 13, 14, 1));
  border-bottom: var(--line);
}

.page-products .prod-flow__grid {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
}

.page-products .prod-flow__copy p {
  max-width: 54ch;
  color: var(--white);
  opacity: .86;
}

.page-products .prod-flow__media {
  margin: 0;
  border: var(--line);
  box-shadow: var(--shadow-hard);
}

.page-products .prod-flow__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 3 / 2;
}

.page-products .prod-flow__media .media__caption {
  padding: 8px 12px;
  font-size: 12px;
  color: var(--violet);
  border-top: var(--line);
  background: var(--ink);
}

.page-products .prod-flow__arrow {
  width: 100%;
  height: auto;
  display: none;
}

.page-products .prod-flow__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
  counter-reset: none;
}

.page-products .prod-flow__step {
  padding: 16px 16px 18px 0;
  border-top: var(--line);
}

.page-products .prod-flow__stepnum {
  display: block;
  font-size: 13px;
  letter-spacing: .18em;
  color: var(--orange);
  margin-bottom: 8px;
}

.page-products .prod-flow__step h3 {
  font-size: 18px;
  margin-bottom: 6px;
}

.page-products .prod-flow__step p {
  font-size: 14px;
  color: var(--white);
  opacity: .78;
  margin: 0;
}

/* ---------- 资源库主体 ---------- */
.page-products .prod-vault {
  padding-block: clamp(36px, 5vw, 72px);
  background: var(--ink);
  border-bottom: var(--line);
}

.page-products .prod-vault__grid {
  display: grid;
  gap: clamp(20px, 3vw, 40px);
}

.page-products .prod-filter {
  align-self: start;
  border: var(--line);
  box-shadow: var(--shadow-hard);
  background: var(--ink-2);
  padding: 18px 16px 20px;
}

.page-products .prod-filter__title {
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: -.01em;
  margin: 0 0 6px;
}

.page-products .prod-filter__desc {
  font-size: 13px;
  color: var(--violet);
  margin: 0 0 14px;
}

.page-products .prod-filter__list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  border-top: 1px solid var(--metal);
}

.page-products .prod-filter__item {
  border-bottom: 1px solid var(--metal);
}

.page-products .prod-filter__link {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 11px 2px;
  font-size: 15px;
  color: var(--white);
  text-decoration: none;
  transition: color .16s var(--ease), padding-left .16s var(--ease);
}

.page-products .prod-filter__link:hover,
.page-products .prod-filter__link:focus-visible {
  color: var(--cyan);
  padding-left: 6px;
}

.page-products .prod-filter__count {
  font-size: 13px;
  color: var(--orange);
}

.page-products .prod-filter__note {
  border-left: 3px solid var(--teal);
  padding-left: 12px;
  margin-bottom: 16px;
}

.page-products .prod-filter__note p {
  font-size: 13px;
  color: var(--white);
  opacity: .74;
  margin: 0;
}

.page-products .prod-filter__btn {
  width: 100%;
}

.page-products .prod-vault__head {
  max-width: 62ch;
  margin-bottom: 18px;
}

.page-products .prod-vault__head p {
  font-size: 14px;
  color: var(--white);
  opacity: .8;
}

/* 资源包 details */
.page-products .pack {
  border: var(--line);
  background: var(--ink-2);
  margin-bottom: 10px;
  transition: transform .16s var(--ease), border-color .16s var(--ease);
}

.page-products .pack:hover,
.page-products .pack:focus-within {
  transform: translateY(-2px);
  border-color: var(--orange);
}

.page-products .pack[open] {
  border-color: var(--teal);
}

.page-products .pack__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
}

.page-products .pack__summary::-webkit-details-marker {
  display: none;
}

.page-products .pack__summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-products .pack__cat {
  font-size: 11px;
  letter-spacing: .16em;
  padding: 3px 8px;
  border: 1px solid var(--metal);
  color: var(--white);
}

.page-products .pack__cat--tac { border-color: var(--cyan); color: var(--cyan); }
.page-products .pack__cat--train { border-color: var(--teal); color: var(--teal); }
.page-products .pack__cat--match { border-color: var(--orange); color: var(--orange); }
.page-products .pack__cat--visual { border-color: var(--violet); color: var(--violet); }

.page-products .pack__name {
  flex: 1 1 220px;
  font-size: 16px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -.01em;
}

.page-products .pack__meta {
  font-size: 12px;
  color: var(--violet);
  white-space: nowrap;
}

.page-products .pack .tag {
  font-style: normal;
}

.page-products .pack .tag--live {
  background: var(--orange);
  color: var(--ink);
  border-color: var(--orange);
}

.page-products .pack__toggle {
  width: 12px;
  height: 12px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg);
  margin-left: auto;
  transition: transform .18s var(--ease);
}

.page-products .pack[open] .pack__toggle {
  transform: rotate(-135deg);
}

.page-products .pack__body {
  border-top: 1px solid var(--metal);
  padding: 12px 16px 16px;
  background: var(--ink);
}

.page-products .pack__files {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
}

.page-products .pack__files li {
  display: flex;
  gap: 10px;
  font-size: 13px;
  line-height: 1.9;
  color: var(--white);
  opacity: .84;
  border-bottom: 1px dashed rgba(119, 113, 132, .28);
}

.page-products .pack__files li .data {
  color: var(--orange);
  flex: none;
}

.page-products .pack__foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
}

.page-products .pack__id {
  font-size: 13px;
  color: var(--cyan);
  letter-spacing: .06em;
}

.page-products .pack__go {
  font-size: 13px;
  color: var(--white);
  opacity: .7;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-products .pack__go:hover,
.page-products .pack__go:focus-visible {
  opacity: 1;
  color: var(--orange);
}

/* ---------- 分类带 ---------- */
.page-products .prod-cats {
  padding-block: clamp(36px, 5vw, 72px) 0;
  background: var(--ink);
}

.page-products .prod-cats__head {
  max-width: 64ch;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-products .prod-cats__head p {
  color: var(--white);
  opacity: .84;
}

.page-products .cat-band {
  border-top: var(--line);
  padding-block: clamp(22px, 3.4vw, 40px);
}

.page-products .cat-band__inner {
  display: grid;
  gap: 14px 24px;
  align-items: start;
}

.page-products .cat-band__num {
  font-size: 15px;
  letter-spacing: .2em;
  color: var(--orange);
}

.page-products .cat-band__text p {
  font-size: 15px;
  color: var(--white);
  opacity: .86;
  max-width: 52ch;
}

.page-products .cat-band__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  margin: 14px 0 0;
  border-top: 1px solid var(--metal);
  padding-top: 10px;
}

.page-products .cat-band__fact dt {
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--violet);
  margin-bottom: 2px;
}

.page-products .cat-band__fact dd {
  margin: 0;
  font-size: 14px;
  color: var(--cyan);
}

.page-products .cat-band__media {
  margin: 0;
  border: var(--line);
  box-shadow: var(--shadow-hard);
}

.page-products .cat-band__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 4 / 3;
}

.page-products .cat-band__plate {
  border: var(--line);
  box-shadow: var(--shadow-hard);
  background:
    repeating-linear-gradient(135deg, rgba(53, 242, 208, .12) 0 8px, transparent 8px 18px),
    var(--ink-2);
  padding: 24px 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 160px;
  aspect-ratio: 4 / 3;
}

.page-products .cat-band__plate-num {
  font-size: clamp(40px, 8vw, 64px);
  color: var(--orange);
  line-height: 1;
}

.page-products .cat-band__plate-cap {
  margin-top: 8px;
  font-size: 13px;
  color: var(--white);
  opacity: .78;
}

/* ---------- 下载记录 ---------- */
.page-products .prod-records {
  padding-block: clamp(36px, 5vw, 72px);
  background: linear-gradient(180deg, var(--ink) 0%, #0E1315 100%);
  border-top: var(--line);
  margin-top: clamp(28px, 4vw, 52px);
}

.page-products .prod-records__grid {
  display: grid;
  gap: clamp(24px, 3vw, 40px);
}

.page-products .prod-records__lede {
  color: var(--white);
  opacity: .86;
  max-width: 58ch;
}

.page-products .prod-records__table {
  width: 100%;
  border-collapse: collapse;
  border: var(--line);
  background: var(--ink-2);
  margin: 16px 0 12px;
  font-size: 14px;
}

.page-products .prod-records__table caption {
  text-align: left;
  font-size: 12px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--violet);
  padding-bottom: 8px;
}

.page-products .prod-records__table th {
  text-align: left;
  font-size: 12px;
  letter-spacing: .1em;
  font-weight: 600;
  color: var(--cyan);
  padding: 10px 12px;
  border-bottom: var(--line);
  background: var(--ink);
}

.page-products .prod-records__table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--metal);
  color: var(--white);
}

.page-products .prod-records__table td.data {
  color: var(--orange);
  white-space: nowrap;
}

.page-products .prod-records__table tbody tr:last-child td {
  border-bottom: 0;
}

.page-products .prod-records__hint {
  font-size: 13px;
  color: var(--violet);
  border-left: 3px solid var(--orange);
  padding-left: 12px;
}

.page-products .prod-records__rights {
  border: var(--line);
  background: var(--ink-2);
  padding: 18px 16px 20px;
  align-self: start;
}

.page-products .prod-rights {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .prod-rights__item {
  border-top: 1px solid var(--metal);
  padding: 12px 0;
}

.page-products .prod-rights__k {
  display: inline-block;
  font-size: 15px;
  color: var(--cyan);
  margin-bottom: 4px;
}

.page-products .prod-rights__item p {
  margin: 0;
  font-size: 13.5px;
  color: var(--white);
  opacity: .8;
}

/* ---------- 使用说明 ---------- */
.page-products .prod-help {
  padding-block: 0 clamp(40px, 6vw, 80px);
  background: var(--ink);
}

.page-products .prod-help__panel {
  margin-bottom: clamp(24px, 3vw, 36px);
  border: var(--line);
  box-shadow: var(--shadow-hard);
  color: var(--paper-ink);
}

.page-products .prod-help__panel h2,
.page-products .prod-help__panel h3 {
  color: var(--paper-ink);
}

.page-products .prod-help__panel .eyebrow {
  color: #0F6B5E;
}

.page-products .prod-help__panel ul {
  margin: 0 0 14px;
  padding-left: 1.1em;
}

.page-products .prod-help__panel li {
  line-height: 1.75;
  margin-bottom: 8px;
}

.page-products .prod-callout {
  border: var(--line);
  box-shadow: var(--shadow-hard);
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(255, 106, 42, .16), transparent 60%),
    var(--ink-2);
  padding: clamp(20px, 3vw, 32px);
}

.page-products .prod-callout p {
  color: var(--white);
  opacity: .86;
  max-width: 56ch;
}

.page-products .prod-callout__list {
  list-style: none;
  margin: 18px 0 20px;
  padding: 0;
  border-top: 1px solid var(--metal);
}

.page-products .prod-callout__list li {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 6px 16px;
  padding: 10px 0;
  border-bottom: 1px solid var(--metal);
  font-size: 14px;
}

.page-products .prod-callout__label {
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--violet);
}

.page-products .prod-callout__list .data {
  color: var(--cyan);
  letter-spacing: .02em;
}

.page-products .prod-callout__btn {
  width: 100%;
}

/* ---------- 桌面端 ---------- */
@media (min-width: 860px) {
  .page-products .prod-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
  }

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

  .page-products .prod-center__item {
    grid-template-columns: 84px minmax(0, 1fr) 150px;
    align-items: start;
    gap: 6px 24px;
    padding: 24px 12px 24px 0;
  }

  .page-products .prod-center__link {
    grid-column: 3;
    justify-self: end;
    margin-top: 4px;
  }

  .page-products .prod-flow__grid {
    grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
    grid-template-areas:
      "copy media"
      "arrow arrow"
      "steps steps";
    align-items: start;
  }

  .page-products .prod-flow__copy { grid-area: copy; }
  .page-products .prod-flow__media { grid-area: media; }
  .page-products .prod-flow__arrow { grid-area: arrow; display: block; margin: 8px 0 4px; }

  .page-products .prod-flow__steps {
    grid-area: steps;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 0 20px;
  }

  .page-products .prod-flow__step {
    padding-right: 20px;
  }

  .page-products .prod-vault__grid {
    grid-template-columns: minmax(0, 260px) minmax(0, 1fr);
    align-items: start;
  }

  .page-products .prod-filter {
    position: sticky;
    top: calc(var(--header-h) + 16px);
  }

  .page-products .cat-band__inner {
    grid-template-columns: 56px minmax(0, 1.15fr) minmax(0, .85fr);
    gap: 20px 32px;
  }

  .page-products .cat-band--flip .cat-band__inner {
    margin-left: 5%;
    grid-template-columns: 56px minmax(0, 1fr) minmax(0, .95fr);
  }

  .page-products .cat-band:first-of-type .cat-band__inner {
    margin-left: 0;
  }

  .page-products .prod-records__grid {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, .85fr);
    align-items: start;
  }

  .page-products .prod-callout__btn {
    width: auto;
  }
}

@media (min-width: 1180px) {
  .page-products .prod-vault__grid {
    grid-template-columns: minmax(0, 300px) minmax(0, 1fr);
    gap: 48px;
  }

  .page-products .prod-help__panel,
  .page-products .prod-callout {
    padding: clamp(28px, 3vw, 44px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pack,
  .page-products .pack__toggle,
  .page-products .prod-center__item,
  .page-products .prod-filter__link {
    transition: none;
  }

  .page-products .pack:hover,
  .page-products .pack:focus-within {
    transform: none;
  }
}
<<<END>>>