.page-products {
  --fit-rail-w: 236px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-sans);
  padding-bottom: 88px;
}

.page-products [hidden] {
  display: none !important;
}

.page-products .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--mist);
  padding-top: 4px;
}

.page-products .breadcrumb a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-products .breadcrumb a:hover {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

.page-products .breadcrumb__sep {
  color: rgba(143, 163, 191, 0.5);
}

/* ---------- Hero ---------- */
.page-products .fit-hero {
  position: relative;
  overflow: hidden;
  padding: 24px 0 0;
  background-color: var(--abyss);
  background-image:
    repeating-linear-gradient(90deg, rgba(143, 163, 191, 0.055) 0 1px, transparent 1px 80px),
    linear-gradient(158deg, #0E1830 0%, #1B2A4A 62%, rgba(255, 138, 61, 0.14) 100%);
  border-bottom: 1px solid var(--line);
}

.page-products .fit-hero::after {
  content: "";
  position: absolute;
  right: -140px;
  top: -170px;
  width: 420px;
  height: 420px;
  background: linear-gradient(135deg, rgba(255, 138, 61, 0.22), rgba(255, 138, 61, 0) 64%);
  transform: rotate(20deg);
  pointer-events: none;
}

.page-products .fit-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 28px;
  padding: 22px 0 32px;
}

.page-products .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--amber);
  text-transform: uppercase;
}

.page-products .fit-hero__title {
  margin: 14px 0 0;
  font-size: clamp(30px, 7vw, 54px);
  font-weight: 300;
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-products .lede {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

.page-products .fit-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-products .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  border-radius: 0;
  border: 1px solid transparent;
  transition: background 0.18s var(--ease), color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-products .btn--primary {
  background: var(--amber);
  color: var(--abyss);
  border-color: var(--amber);
}

.page-products .btn--primary:hover {
  background: var(--amber-soft);
  border-color: var(--amber-soft);
}

.page-products .btn--ghost {
  background: transparent;
  color: var(--paper);
  border-color: var(--line-strong);
}

.page-products .btn--ghost:hover {
  color: var(--amber);
  border-color: var(--amber);
}

/* 状态面板 */
.page-products .fit-panel {
  border: 1px solid var(--line-strong);
  background: rgba(14, 24, 48, 0.86);
}

.page-products .fit-panel__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-products .fit-panel__dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 7px;
  background: var(--jade);
  vertical-align: middle;
}

.page-products .fit-panel__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
}

.page-products .fit-metric {
  background: #101c36;
  padding: 14px;
}

.page-products .fit-metric__k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

.page-products .fit-metric__v {
  margin-top: 6px;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-products .fit-metric__v small {
  font-size: 11px;
  font-weight: 500;
  color: var(--mist);
  margin-left: 2px;
}

/* 步进条 */
.page-products .fit-steps {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line-strong);
  border: 1px solid var(--line-strong);
  border-bottom: 0;
}

.page-products .fit-step {
  background: var(--abyss);
  padding: 14px 16px;
  position: relative;
}

.page-products .fit-step::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 2px;
  background: var(--amber);
  opacity: 0.75;
}

.page-products .fit-step__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--amber);
}

.page-products .fit-step__label {
  display: block;
  margin-top: 6px;
  font-size: 15px;
  font-weight: 700;
  color: var(--paper);
}

.page-products .fit-step__note {
  display: block;
  margin-top: 4px;
  font-size: 12px;
  line-height: 1.55;
  color: var(--mist);
}

/* ---------- 五类设备主题带 ---------- */
.page-products .fit-band {
  background: var(--steel);
  border-bottom: 1px solid var(--line-strong);
}

.page-products .fit-band__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: rgba(143, 163, 191, 0.28);
}

.page-products .fit-band__item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  background: var(--steel);
  padding: 14px 16px;
}

.page-products .fit-band__name {
  font-size: 13px;
  font-weight: 700;
  color: var(--paper);
}

.page-products .fit-band__n {
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--amber);
  letter-spacing: 0.02em;
}

/* ---------- 左轨 + 清单 ---------- */
.page-products .fit-layout {
  display: grid;
  gap: 24px;
  padding-top: 40px;
}

.page-products .fit-rail {
  border: 1px solid var(--line);
  background: var(--abyss);
  align-self: start;
}

.page-products .fit-rail__head {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.page-products .fit-rail__filters {
  display: block;
}

.page-products .fit-chip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  width: 100%;
  padding: 12px 14px;
  background: transparent;
  color: var(--paper);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  text-align: left;
  border: 0;
  border-bottom: 1px solid rgba(143, 163, 191, 0.12);
  border-radius: 0;
  cursor: pointer;
  transition: background 0.18s var(--ease), color 0.18s var(--ease);
}

.page-products .fit-chip span {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--mist);
  transition: color 0.18s var(--ease);
}

.page-products .fit-chip:hover {
  background: rgba(255, 178, 122, 0.09);
  color: var(--amber-soft);
}

.page-products .fit-chip[aria-pressed="true"] {
  background: rgba(255, 138, 61, 0.14);
  color: var(--amber);
  box-shadow: inset 3px 0 0 var(--amber);
}

.page-products .fit-chip[aria-pressed="true"] span {
  color: var(--amber);
}

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

.page-products .fit-legend {
  display: grid;
  gap: 8px;
  padding: 14px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  line-height: 1.5;
  color: var(--mist);
}

.page-products .fit-legend__item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.page-products .fit-legend__dot {
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  margin-top: 5px;
}

.page-products .fit-legend__dot--ok { background: var(--jade); }
.page-products .fit-legend__dot--wait { background: var(--mist); }
.page-products .fit-legend__dot--todo { background: transparent; border: 1px dashed var(--amber); }

.page-products .fit-main {
  min-width: 0;
}

/* 清单块 */
.page-products .fit-block {
  border: 1px solid var(--line);
  background: var(--abyss);
  margin-bottom: 20px;
}

.page-products .fit-block:last-child {
  margin-bottom: 0;
}

.page-products .fit-block__head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 16px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(120deg, rgba(44, 62, 92, 0.5), rgba(14, 24, 48, 0.2));
}

.page-products .fit-block__meta {
  flex: 1 1 220px;
  min-width: 0;
}

.page-products .fit-block__kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--amber);
}

.page-products .fit-block__title {
  margin: 8px 0 0;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-products .fit-block__desc {
  margin: 10px 0 0;
  max-width: 46ch;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--mist);
}

.page-products .fit-block__art {
  flex: 0 0 92px;
  width: 92px;
  border: 1px solid var(--line);
  background: var(--ink);
}

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

/* 清单行 */
.page-products .fit-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 12px;
  padding: 11px 14px;
  border-bottom: 1px solid rgba(143, 163, 191, 0.1);
  font-size: 14px;
  transition: background 0.18s var(--ease);
}

.page-products .fit-row:nth-child(even) {
  background: rgba(44, 62, 92, 0.26);
}

.page-products .fit-row:last-child {
  border-bottom: 0;
}

.page-products .fit-row:hover {
  background: rgba(255, 138, 61, 0.08);
}

.page-products .fit-row__name {
  flex: 1 1 200px;
  min-width: 0;
  color: var(--paper);
  line-height: 1.5;
}

.page-products .fit-row__idx {
  margin-right: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--mist);
}

.page-products .fit-row__ver {
  flex: 1 1 auto;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--mist);
  letter-spacing: 0.02em;
}

.page-products .fit-state {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  padding: 3px 7px;
  border: 1px solid currentColor;
  border-radius: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.4;
  letter-spacing: 0.04em;
}

.page-products .fit-state--ok { color: var(--jade-soft); }
.page-products .fit-state--wait { color: var(--mist); }
.page-products .fit-state--todo { color: var(--amber); border-style: dashed; }

.page-products .fit-check {
  flex: 0 0 auto;
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  cursor: pointer;
}

.page-products .fit-check input {
  -webkit-appearance: none;
  appearance: none;
  width: 16px;
  height: 16px;
  margin: 0;
  border: 1px solid var(--line-strong);
  background: transparent;
  position: relative;
  cursor: pointer;
  transition: background 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-products .fit-check input:hover {
  border-color: var(--amber);
}

.page-products .fit-check input:checked {
  background: var(--jade);
  border-color: var(--jade);
}

.page-products .fit-check input:checked::after {
  content: "";
  position: absolute;
  left: 4px;
  top: 1px;
  width: 5px;
  height: 9px;
  border-right: 2px solid var(--abyss);
  border-bottom: 2px solid var(--abyss);
  transform: rotate(45deg);
}

.page-products .fit-check input:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

/* ---------- 通用区块头 ---------- */
.page-products .fit-section {
  padding-top: 56px;
}

.page-products .fit-section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 12px;
  margin-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.page-products .fit-section__title {
  margin: 0;
  font-size: clamp(21px, 3.4vw, 28px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-products .fit-section__meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

/* ---------- 复核区块 ---------- */
.page-products .fit-review {
  border: 1px solid var(--line-strong);
  background: var(--abyss);
}

.page-products .fit-review__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 11px 16px;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mist);
  background: rgba(44, 62, 92, 0.42);
}

.page-products .fit-review__body {
  display: grid;
  gap: 24px;
  padding: 20px 16px;
}

.page-products .fit-review__title {
  margin: 0 0 14px;
  font-size: 20px;
  font-weight: 800;
  line-height: 1.4;
  color: var(--paper);
}

.page-products .fit-review__copy p {
  margin: 0 0 12px;
  max-width: 52ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-products .fit-review__copy p:last-child {
  margin-bottom: 0;
}

.page-products .fit-review__links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding-top: 4px;
}

.page-products .fit-review__links a {
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 138, 61, 0.5);
  font-size: 14px;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-products .fit-review__links a:hover {
  color: var(--amber-soft);
  border-bottom-color: var(--amber-soft);
}

.page-products .fit-review__links .mono {
  font-family: var(--font-mono);
  font-size: 11px;
  color: rgba(143, 163, 191, 0.5);
}

.page-products .fit-review__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  align-self: start;
}

.page-products .fit-review__stat {
  background: #101c36;
  padding: 14px;
}

.page-products .fit-review__k {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--mist);
}

.page-products .fit-review__v {
  display: block;
  margin-top: 6px;
  font-size: 15px;
  font-weight: 700;
  color: var(--jade-soft);
}

/* ---------- 反馈区块 ---------- */
.page-products .fit-feedback {
  display: grid;
  gap: 24px;
}

.page-products .fit-feedback__lead {
  margin: 14px 0 20px;
  max-width: 48ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

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

.page-products .fit-mat {
  display: flex;
  align-items: baseline;
  gap: 12px;
  background: var(--abyss);
  padding: 12px 14px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--paper);
}

.page-products .fit-mat__n {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--amber);
  letter-spacing: 0.06em;
}

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

.page-products .fit-route {
  border: 1px solid var(--line-strong);
  background: linear-gradient(150deg, rgba(255, 138, 61, 0.16), rgba(14, 24, 48, 0.9) 62%);
  padding: 18px;
}

.page-products .fit-route--ghost {
  background: rgba(44, 62, 92, 0.42);
}

.page-products .fit-route__k {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--amber);
}

.page-products .fit-route--ghost .fit-route__k {
  color: var(--mist);
}

.page-products .fit-route__t {
  margin: 10px 0 0;
  font-size: 16px;
  font-weight: 800;
  color: var(--paper);
}

.page-products .fit-route__d {
  margin: 8px 0 16px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--mist);
}

.page-products .fit-route .btn {
  width: 100%;
}

/* ---------- 服务范围 ---------- */
.page-products .fit-scope__grid {
  display: grid;
  gap: 20px;
}

.page-products .fit-scope__main p {
  margin: 0 0 12px;
  max-width: 52ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--mist);
}

.page-products .fit-scope__main p:last-child {
  margin-bottom: 0;
}

.page-products .fit-scope__side {
  border: 1px solid var(--line);
  border-left: 3px solid var(--jade);
  background: rgba(44, 62, 92, 0.32);
  padding: 16px;
}

.page-products .fit-scope__k {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-products .fit-scope__k:not(:first-child) {
  margin-top: 14px;
}

.page-products .fit-scope__v {
  margin: 4px 0 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--paper);
  line-height: 1.6;
}

.page-products .fit-scope__v a {
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 138, 61, 0.5);
}

.page-products .fit-scope__v a:hover {
  color: var(--amber-soft);
  border-bottom-color: var(--amber-soft);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .fit-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-products .fit-block__art {
    flex: 0 0 132px;
    width: 132px;
  }

  .page-products .fit-block__head {
    padding: 20px 20px;
  }

  .page-products .fit-row {
    padding: 11px 20px;
  }

  .page-products .fit-review__body {
    padding: 24px 20px;
  }

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

@media (min-width: 900px) {
  .page-products .fit-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
    gap: 40px;
    padding: 28px 0 40px;
  }

  .page-products .lede {
    font-size: 16px;
  }

  .page-products .fit-band__list {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-products .fit-review__body {
    grid-template-columns: minmax(0, 1fr) minmax(0, 340px);
    gap: 32px;
  }

  .page-products .fit-feedback {
    grid-template-columns: minmax(0, 1fr) minmax(0, 320px);
    gap: 32px;
    align-items: start;
  }

  .page-products .fit-scope__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 300px);
    gap: 32px;
  }
}

@media (min-width: 1024px) {
  .page-products .fit-layout {
    grid-template-columns: var(--fit-rail-w) minmax(0, 1fr);
    gap: 32px;
  }

  .page-products .fit-rail {
    position: sticky;
    top: 24px;
  }

  .page-products .fit-hero__title {
    font-size: clamp(40px, 4.4vw, 56px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .btn,
  .page-products .fit-chip,
  .page-products .fit-row,
  .page-products .breadcrumb a,
  .page-products .fit-check input,
  .page-products .fit-review__links a {
    transition: none;
  }
}
<<<END>>>