.page-products {
  --pp-gap: clamp(14px, 2vw, 22px);
  --pp-pad: clamp(30px, 4.6vw, 64px);
  --pp-paper-soft: rgba(242, 239, 230, 0.86);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-body);
  padding-bottom: clamp(48px, 7vw, 96px);
}

.page-products .breadcrumb {
  padding-top: clamp(16px, 2.6vw, 28px);
}

.page-products .breadcrumb a {
  color: var(--silver);
  text-decoration: none;
  transition: color var(--ease);
}

.page-products .breadcrumb a:hover {
  color: var(--lime);
}

/* ---------- 首屏目录 ---------- */
.page-products .cat-hero {
  padding: clamp(18px, 3vw, 36px) 0 clamp(26px, 4vw, 48px);
  border-bottom: 2px solid var(--line);
}

.page-products .cat-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pp-gap);
  align-items: end;
}

.page-products h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(28px, 4.6vw, 48px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  max-width: 15em;
}

.page-products .cat-hero .lede {
  margin: 14px 0 0;
  max-width: 36em;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--silver);
}

.page-products .cat-hero__panel {
  background: var(--panel);
  border: 2px solid var(--line);
  box-shadow: var(--shadow-hard);
  padding: 14px 16px 10px;
}

.page-products .cat-hero__panel-title {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--lime);
}

.page-products .readout {
  margin: 0;
}

.page-products .readout__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px dashed rgba(159, 179, 173, 0.28);
}

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

.page-products .readout__row dt {
  font-size: 13px;
  color: var(--silver);
}

.page-products .readout__row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 17px;
  color: var(--paper);
}

.page-products .readout__row:first-child dd {
  color: var(--lime);
}

.page-products .cat-index {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-products .cat-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  height: 100%;
  padding: 16px 14px;
  background: var(--panel);
  border: 2px solid var(--line);
  box-shadow: var(--shadow-hard);
  color: var(--paper);
  text-decoration: none;
  transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease);
}

.page-products .cat-card::before {
  content: "";
  position: absolute;
  left: -2px;
  top: -2px;
  bottom: -2px;
  width: 4px;
  background: var(--lime);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--ease);
}

.page-products .cat-card:hover,
.page-products .cat-card:focus-visible {
  transform: translateX(-4px);
  border-color: rgba(198, 242, 78, 0.6);
  box-shadow: 6px 6px 0 var(--pit);
}

.page-products .cat-card:hover::before,
.page-products .cat-card:focus-visible::before {
  transform: scaleY(1);
}

.page-products .cat-card__num {
  font-family: var(--font-mono);
  font-size: 30px;
  line-height: 1;
  letter-spacing: 0.04em;
  color: var(--lime);
}

.page-products .cat-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  line-height: 1.35;
}

.page-products .cat-card__desc {
  margin: 0;
  font-size: 13px;
  line-height: 1.62;
  color: var(--silver);
}

.page-products .cat-card__go {
  margin-top: auto;
  padding-top: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--ash);
  transition: color var(--ease);
}

.page-products .cat-card:hover .cat-card__go {
  color: var(--lime);
}

/* ---------- 章节骨架 ---------- */
.page-products .chap {
  padding: var(--pp-pad) 0;
  border-bottom: 2px solid var(--line);
  scroll-margin-top: 120px;
}

.page-products .chap__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 3vw, 32px);
}

.page-products .chap__head {
  border-left: 4px solid var(--lime);
  padding-left: 14px;
}

.page-products .chap__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--silver);
}

.page-products .chap__title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 2.7vw, 30px);
  line-height: 1.22;
  letter-spacing: -0.01em;
}

.page-products .chap__kicker {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 0.04em;
  color: var(--silver);
}

.page-products .chap__body > p {
  margin: 0 0 14px;
  max-width: 44em;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--pp-paper-soft);
}

.page-products .sub {
  margin: 22px 0 12px;
  padding-left: 10px;
  border-left: 4px solid var(--lime);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  line-height: 1.4;
}

.page-products .shot {
  margin: 0 0 18px;
  background: var(--panel);
  border: 2px solid var(--line);
  box-shadow: var(--shadow-hard);
}

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

.page-products .shot__cap {
  padding: 8px 12px;
  border-top: 2px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: 0.06em;
  color: var(--silver);
}

.page-products .shot--narrow {
  max-width: 380px;
}

/* ---------- 三步排查 ---------- */
.page-products .step-list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .step {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 12px 14px;
  background: var(--panel);
  border: 2px solid var(--line);
  transition: border-color var(--ease);
}

.page-products .step:hover {
  border-color: rgba(198, 242, 78, 0.5);
}

.page-products .step__no {
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.5;
  color: var(--lime);
  border-right: 2px solid var(--line);
  padding-right: 8px;
}

.page-products .step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--pp-paper-soft);
}

.page-products .step strong {
  color: var(--paper);
}

/* ---------- 线路图例 ---------- */
.page-products .legend {
  display: grid;
  gap: 8px;
  margin: 0 0 18px;
}

.page-products .legend__item {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 10px 12px;
  background: rgba(18, 49, 42, 0.66);
  border: 2px solid var(--line);
  font-size: 13px;
  line-height: 1.65;
  color: var(--silver);
}

.page-products .legend__dot {
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  margin-top: 5px;
  background: var(--lime);
}

.page-products .legend__dot--alt {
  background: var(--orange);
}

.page-products .legend__dot--ash {
  background: var(--ash);
}

/* ---------- 数据面板读数 ---------- */
.page-products .reading-list {
  display: grid;
  gap: 10px;
  margin: 0 0 18px;
}

.page-products .reading {
  display: grid;
  gap: 7px;
  padding: 12px 14px;
  background: var(--panel);
  border: 2px solid var(--line);
  transition: border-color var(--ease);
}

.page-products .reading:hover {
  border-color: var(--lime);
}

.page-products .reading__top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
}

.page-products .reading__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  color: var(--paper);
}

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

.page-products .reading__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.68;
  color: var(--silver);
}

.page-products .reading__bar {
  display: block;
  height: 6px;
  background: rgba(30, 74, 60, 0.9);
  border: 1px solid var(--line);
  overflow: hidden;
}

.page-products .reading__bar i {
  display: block;
  height: 100%;
  width: var(--f, 50%);
  background: var(--lime);
}

.page-products .reading__bar--orange i {
  background: var(--orange);
}

.page-products .reading__bar--clay i {
  background: var(--clay);
}

/* ---------- 规则刻度尺 ---------- */
.page-products .ruler {
  display: grid;
  grid-template-columns: repeat(9, minmax(0, 1fr));
  gap: 4px;
  margin: 4px 0 8px;
}

.page-products .ruler__cell {
  padding: 10px 0 8px;
  text-align: center;
  background: var(--panel);
  border: 2px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--silver);
  transition: background var(--ease), color var(--ease), border-color var(--ease);
}

.page-products .ruler__cell:hover {
  background: var(--lime);
  border-color: var(--lime);
  color: var(--pit);
}

.page-products .ruler__cap {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ash);
}

/* ---------- 两步路径 ---------- */
.page-products .path {
  display: grid;
  gap: 10px;
  margin: 0 0 18px;
}

.page-products .path__step {
  padding: 14px;
  background: var(--panel);
  border: 2px solid var(--line);
  box-shadow: var(--shadow-hard);
}

.page-products .path__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1;
  color: var(--lime);
}

.page-products .path__t {
  margin: 8px 0 4px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  color: var(--paper);
}

.page-products .path__d {
  margin: 0;
  font-size: 13px;
  line-height: 1.66;
  color: var(--silver);
}

.page-products .path__arrow {
  font-family: var(--font-mono);
  font-size: 18px;
  text-align: center;
  color: var(--lime);
}

.page-products .scenes {
  display: grid;
  gap: 12px;
  margin: 0 0 18px;
}

.page-products .scene {
  padding: 4px 0 4px 12px;
  border-left: 4px solid var(--clay);
}

.page-products .scene h4 {
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  color: var(--paper);
}

.page-products .scene p {
  margin: 0;
  font-size: 13px;
  line-height: 1.68;
  color: var(--silver);
}

/* ---------- 下一步导流条 ---------- */
.page-products .next-step {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: 20px;
  padding: 12px 16px;
  background: rgba(18, 49, 42, 0.72);
  border: 2px solid var(--line);
  border-left: 6px solid var(--lime);
  color: var(--paper);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.6;
  letter-spacing: 0.04em;
  transition: background var(--ease), border-color var(--ease), transform var(--ease);
}

.page-products .next-step:hover,
.page-products .next-step:focus-visible {
  background: rgba(198, 242, 78, 0.1);
  border-color: var(--lime);
  transform: translateX(2px);
}

.page-products .next-step__arrow {
  flex: 0 0 auto;
  color: var(--lime);
}

/* ---------- 结尾联系块 ---------- */
.page-products .catalog-cta {
  margin-top: clamp(30px, 4vw, 52px);
  display: grid;
  gap: 16px;
  padding: clamp(18px, 3vw, 28px);
  background: var(--panel);
  border: 2px solid var(--lime);
  box-shadow: var(--shadow-hard);
}

.page-products .catalog-cta h2 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 2.4vw, 22px);
  line-height: 1.3;
}

.page-products .catalog-cta p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--silver);
}

.page-products .catalog-cta .btn {
  justify-self: start;
  white-space: nowrap;
}

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

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

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

@media (min-width: 720px) {
  .page-products .path {
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: center;
  }

  .page-products .scenes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
  }
}

@media (min-width: 900px) {
  .page-products .cat-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(28px, 4vw, 56px);
  }

  .page-products .catalog-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 960px) {
  .page-products .chap__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: clamp(28px, 4vw, 56px);
    align-items: start;
  }

  .page-products .chap__head {
    position: sticky;
    top: 104px;
  }
}

@media (min-width: 1080px) {
  .page-products .cat-index {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 10px;
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-products .cat-card,
  .page-products .cat-card::before,
  .page-products .next-step,
  .page-products .step,
  .page-products .reading,
  .page-products .ruler__cell {
    transition: none;
  }

  .page-products .cat-card:hover,
  .page-products .next-step:hover {
    transform: none;
  }
}

.page-products {
  --f: 1rem;
}