.page-products {
  background: var(--c-paper-100);
  color: var(--c-graphite-800);
  font-family: var(--font-sans);
}

.page-products p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.75;
}

.page-products a {
  color: inherit;
}

/* ---------- 顶部深色档案区 ---------- */
.page-products .fit-top {
  background: var(--c-ink-900);
  color: var(--c-paper-100);
  border-bottom: 2px solid var(--c-amber-500);
  padding-bottom: clamp(24px, 4vw, 52px);
  background-image:
    linear-gradient(to right, rgba(220, 205, 178, .07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(220, 205, 178, .07) 1px, transparent 1px);
  background-size: 64px 64px, 64px 64px;
}

.page-products .fit-top .crumbs {
  padding: 14px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--c-paper-300);
}

.page-products .fit-top .crumbs a {
  color: var(--c-paper-300);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .fit-top .crumbs a:hover,
.page-products .fit-top .crumbs a:focus-visible {
  color: var(--c-amber-200);
  border-bottom-color: var(--c-amber-200);
}

.page-products .fit-top .crumbs [aria-current="page"] {
  color: var(--c-amber-500);
}

.page-products .crumbs__sep {
  margin: 0 8px;
  color: var(--c-slate-500);
}

.page-products .fit-hero {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  padding-top: clamp(18px, 3vw, 36px);
  align-items: start;
}

.page-products .kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--c-rust-600);
}

.page-products .fit-top .kicker {
  color: var(--c-amber-500);
}

.page-products .fit-hero h1 {
  margin: 14px 0 16px;
  font-family: var(--font-condensed);
  font-weight: 900;
  font-size: clamp(30px, 5.4vw, 60px);
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--c-paper-100);
}

.page-products .fit-hero__lead {
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(244, 234, 215, .82);
}

.page-products .fit-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-products .fit-gauge {
  border: 1px solid rgba(243, 206, 146, .28);
  background: var(--c-ink-700);
  padding: 16px 18px 14px;
}

.page-products .fit-gauge__title {
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--c-amber-200);
}

.page-products .fit-gauge__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px dashed rgba(220, 205, 178, .24);
}

.page-products .fit-gauge__label {
  font-size: 13px;
  color: rgba(244, 234, 215, .78);
}

.page-products .fit-gauge__value {
  font-size: 17px;
  font-weight: 600;
  color: var(--c-amber-500);
  white-space: nowrap;
}

.page-products .fit-gauge__foot {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 12px 0 0;
  font-size: 12px;
  line-height: 1.5;
  color: rgba(244, 234, 215, .68);
}

.page-products .fit-dot {
  width: 7px;
  height: 7px;
  flex: 0 0 7px;
  background: var(--c-crt-400);
  box-shadow: 0 0 0 3px rgba(111, 243, 168, .16);
}

/* ---------- 主体节奏 ---------- */
.page-products .fit-body {
  display: grid;
  gap: clamp(40px, 6vw, 76px);
  padding-block: clamp(30px, 5vw, 64px) clamp(48px, 8vw, 96px);
}

.page-products .fit-section {
  padding-top: 20px;
  border-top: 1px solid rgba(32, 33, 31, .22);
}

.page-products .fit-section__head {
  max-width: 70ch;
}

.page-products h2 {
  margin: 12px 0 14px;
  font-family: var(--font-condensed);
  font-weight: 800;
  font-size: clamp(23px, 3.4vw, 38px);
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--c-graphite-800);
}

.page-products .fit-section__lead {
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-slate-500);
}

.page-products .fit-h3 {
  margin: 24px 0 10px;
  font-family: var(--font-condensed);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--c-ink-700);
}

.page-products .fit-link {
  color: var(--c-rust-600);
  text-decoration: none;
  border-bottom: 1px solid rgba(180, 85, 47, .45);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .fit-link:hover,
.page-products .fit-link:focus-visible {
  color: var(--c-ink-900);
  border-bottom-color: var(--c-ink-900);
}

/* ---------- 平台标签 ---------- */
.page-products .fit-tabs {
  display: flex;
  flex-wrap: wrap;
  margin: 22px 0 0;
  border: 1px solid var(--c-graphite-800);
  border-bottom-width: 2px;
}

.page-products .fit-tab {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 18px;
  text-decoration: none;
  border-right: 1px solid rgba(32, 33, 31, .2);
  font-family: var(--font-condensed);
  font-weight: 700;
  font-size: 15px;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-products .fit-tab:last-child {
  border-right: 0;
}

.page-products .fit-tab__count {
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--c-slate-500);
}

.page-products .fit-tab:hover,
.page-products .fit-tab:focus-visible {
  background: var(--c-amber-500);
  color: var(--c-graphite-800);
  outline: none;
}

.page-products .fit-tab:hover .fit-tab__count,
.page-products .fit-tab:focus-visible .fit-tab__count {
  color: var(--c-graphite-800);
}

/* ---------- 图片 ---------- */
.page-products .fit-shot {
  margin: 22px 0 0;
  border: 1px solid rgba(32, 33, 31, .25);
  background: rgba(220, 205, 178, .35);
}

.page-products .fit-shot img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .fit-shot figcaption,
.page-products .fit-fork-shot figcaption {
  padding: 8px 12px;
  font-size: 11px;
  line-height: 1.55;
  letter-spacing: .03em;
  color: var(--c-slate-500);
  border-top: 1px solid rgba(32, 33, 31, .18);
}

.page-products .fit-note {
  margin: 18px 0 6px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-slate-500);
}

/* ---------- 表格 ---------- */
.page-products .fit-sheet {
  margin-top: 18px;
  overflow-x: auto;
  border: 1px solid rgba(32, 33, 31, .28);
  background: rgba(220, 205, 178, .3);
  -webkit-overflow-scrolling: touch;
}

.page-products .fit-table {
  width: 100%;
  min-width: 800px;
  border-collapse: collapse;
  font-size: 13px;
  line-height: 1.4;
}

.page-products .fit-table caption {
  padding: 11px 14px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--c-graphite-800);
  background: var(--c-paper-300);
  border-bottom: 1px solid rgba(32, 33, 31, .28);
}

.page-products .fit-table thead th {
  height: 36px;
  padding: 0 12px;
  text-align: left;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--c-paper-100);
  background: var(--c-ink-700);
}

.page-products .fit-table tbody th,
.page-products .fit-table tbody td {
  height: 44px;
  padding: 6px 12px;
  text-align: left;
  vertical-align: middle;
  border-top: 1px solid rgba(32, 33, 31, .14);
}

.page-products .fit-table tbody th {
  white-space: nowrap;
  font-size: 12px;
  font-weight: 700;
  color: var(--c-ink-700);
}

.page-products .fit-table tbody tr:nth-child(even) {
  background: rgba(244, 234, 215, .62);
}

.page-products .fit-table tbody tr:hover {
  background: rgba(227, 155, 58, .16);
}

.page-products .fit-size {
  display: flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
}

.page-products .fit-bar {
  width: 88px;
  height: 8px;
  flex: 0 0 88px;
}

.page-products .fit-bar__track {
  fill: rgba(32, 33, 31, .14);
}

.page-products .fit-bar__span {
  fill: var(--c-amber-500);
}

.page-products .fit-arch summary {
  display: inline-block;
  font-size: 11px;
  letter-spacing: .02em;
  cursor: pointer;
  list-style: none;
  color: var(--c-ink-700);
  border-bottom: 1px dashed var(--c-slate-500);
}

.page-products .fit-arch summary::-webkit-details-marker {
  display: none;
}

.page-products .fit-arch summary:hover,
.page-products .fit-arch summary:focus-visible {
  color: var(--c-rust-600);
  border-bottom-color: var(--c-rust-600);
  outline: none;
}

.page-products .fit-arch p {
  margin: 8px 0 2px;
  max-width: 240px;
  font-size: 11px;
  line-height: 1.6;
  color: var(--c-slate-500);
}

/* ---------- 体积与空间 ---------- */
.page-products .fit-split {
  display: grid;
  gap: clamp(20px, 3vw, 34px);
}

.page-products .fit-cards {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}

.page-products .fit-card {
  padding: 14px 16px;
  background: rgba(220, 205, 178, .42);
  border: 1px solid rgba(32, 33, 31, .22);
  border-left: 3px solid var(--c-amber-500);
}

.page-products .fit-card__label {
  margin: 0 0 6px;
  font-size: 10px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--c-slate-500);
}

.page-products .fit-card__value {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 600;
  color: var(--c-ink-900);
}

.page-products .fit-card__desc {
  margin: 0;
  font-size: 12px;
  line-height: 1.6;
  color: var(--c-slate-500);
}

.page-products .fit-formula {
  margin: 18px 0 0;
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--c-ink-900);
  background: rgba(111, 243, 168, .12);
  border: 1px dashed var(--c-slate-500);
}

/* ---------- 路径分岔图 ---------- */
.page-products .fit-fork-shot {
  margin: 0;
  align-self: start;
  border: 1px solid rgba(32, 33, 31, .22);
  background: rgba(220, 205, 178, .3);
  padding: 12px;
}

.page-products .fit-fork {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
}

.page-products .fork-line path {
  fill: none;
  stroke: var(--c-slate-500);
  stroke-width: 1.4;
  stroke-dasharray: 5 4;
}

.page-products .fork-box rect {
  fill: var(--c-paper-100);
  stroke: rgba(32, 33, 31, .5);
  stroke-width: 1.2;
}

.page-products .fork-box text {
  font-family: var(--font-mono);
  font-size: 16px;
  fill: var(--c-graphite-800);
}

.page-products .fork-box--accent rect {
  fill: var(--c-amber-500);
  stroke: var(--c-graphite-800);
}

.page-products .fork-box--accent text {
  fill: var(--c-graphite-800);
  font-weight: 600;
}

/* ---------- 装机四步 ---------- */
.page-products .fit-steps {
  display: grid;
  gap: clamp(18px, 3vw, 30px);
  margin-top: 22px;
}

.page-products .fit-step {
  margin-bottom: 10px;
  border: 1px solid rgba(32, 33, 31, .24);
  background: rgba(220, 205, 178, .34);
  transition: border-color var(--dur) var(--ease);
}

.page-products .fit-step:hover {
  border-color: rgba(32, 33, 31, .5);
}

.page-products .fit-step summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 15px;
  cursor: pointer;
  list-style: none;
}

.page-products .fit-step summary::-webkit-details-marker {
  display: none;
}

.page-products .fit-step summary:focus-visible {
  outline: 2px solid var(--c-amber-500);
  outline-offset: -2px;
}

.page-products .fit-step__no {
  flex: 0 0 auto;
  padding: 2px 8px;
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--c-amber-200);
  background: var(--c-ink-900);
}

.page-products .fit-step__title {
  font-family: var(--font-condensed);
  font-size: 16px;
  font-weight: 700;
  color: var(--c-graphite-800);
}

.page-products .fit-step[open] summary {
  background: rgba(227, 155, 58, .14);
}

.page-products .fit-step__body {
  padding: 2px 15px 14px;
  border-top: 1px solid rgba(32, 33, 31, .18);
}

.page-products .fit-step__body p:first-child {
  margin-top: 12px;
}

.page-products .fit-step__body .mono {
  font-size: 11px;
  color: var(--c-slate-500);
}

.page-products .fit-steps__media {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-products .fit-steps__media .fit-shot {
  margin: 0;
}

/* ---------- 降档与报错 ---------- */
.page-products .fit-warn {
  padding: clamp(22px, 4vw, 44px);
  background: var(--c-ink-900);
  color: var(--c-paper-100);
  border-left: 4px solid var(--c-rust-600);
}

.page-products .fit-warn__head {
  max-width: 68ch;
}

.page-products .fit-warn__head .kicker {
  color: var(--c-amber-500);
}

.page-products .fit-warn h2 {
  color: var(--c-paper-100);
}

.page-products .fit-warn__lead {
  color: rgba(244, 234, 215, .8);
}

.page-products .fit-warn__grid {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
  margin-top: 24px;
}

.page-products .fit-warn__item {
  padding-top: 14px;
  border-top: 1px solid rgba(220, 205, 178, .26);
}

.page-products .fit-warn__item + .fit-warn__item {
  margin-top: 18px;
}

.page-products .fit-warn__tag {
  display: inline-block;
  margin: 0 0 8px;
  padding: 2px 8px;
  font-size: 10px;
  letter-spacing: .1em;
  color: var(--c-paper-100);
  background: var(--c-rust-600);
}

.page-products .fit-warn__item h3 {
  margin: 0 0 8px;
  font-family: var(--font-condensed);
  font-size: 17px;
  font-weight: 700;
  color: var(--c-paper-100);
}

.page-products .fit-warn__item p {
  color: rgba(244, 234, 215, .78);
  font-size: 14px;
}

.page-products .fit-warn .fit-link {
  color: var(--c-amber-200);
  border-bottom-color: rgba(243, 206, 146, .55);
}

.page-products .fit-warn .fit-link:hover,
.page-products .fit-warn .fit-link:focus-visible {
  color: var(--c-crt-400);
  border-bottom-color: var(--c-crt-400);
}

.page-products .fit-shot--warn {
  margin: 0;
  border-color: rgba(220, 205, 178, .3);
  background: var(--c-ink-700);
}

.page-products .fit-shot--warn figcaption {
  color: rgba(244, 234, 215, .6);
  border-top-color: rgba(220, 205, 178, .22);
}

/* ---------- 后续入口 ---------- */
.page-products .fit-next {
  padding-top: 20px;
  border-top: 1px solid rgba(32, 33, 31, .22);
}

.page-products .fit-next__title {
  margin: 0 0 16px;
  font-family: var(--font-condensed);
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 800;
  color: var(--c-graphite-800);
}

.page-products .fit-next__list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: rgba(32, 33, 31, .2);
  border: 1px solid rgba(32, 33, 31, .2);
}

.page-products .fit-next__list a {
  display: block;
  padding: 14px 16px;
  text-decoration: none;
  background: var(--c-paper-100);
  transition: background var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}

.page-products .fit-next__list a:hover,
.page-products .fit-next__list a:focus-visible {
  background: rgba(227, 155, 58, .2);
  padding-left: 22px;
  outline: none;
}

.page-products .fit-next__label {
  display: block;
  font-family: var(--font-condensed);
  font-size: 16px;
  font-weight: 700;
  color: var(--c-ink-700);
}

.page-products .fit-next__desc {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  line-height: 1.6;
  color: var(--c-slate-500);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products p {
    font-size: 16px;
  }

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

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

@media (min-width: 900px) {
  .page-products .fit-hero {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, .85fr);
    align-items: end;
  }

  .page-products .fit-split {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-products .fit-steps {
    grid-template-columns: minmax(0, 1.3fr) minmax(0, .9fr);
    align-items: start;
  }

  .page-products .fit-warn__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    align-items: start;
  }

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

@media (min-width: 1100px) {
  .page-products .fit-table {
    min-width: 0;
  }

  .page-products .fit-bar {
    width: 96px;
    flex-basis: 96px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .fit-tab,
  .page-products .fit-next__list a,
  .page-products .fit-step,
  .page-products .fit-link,
  .page-products .fit-top .crumbs a {
    transition: none;
  }
}
<<<END>>>