.page-products {
  --zone-1: #8C6A3A;
  --zone-2: #A88E63;
  --zone-3: #7C6336;
  --zone-4: #A0522D;
  --zone-5: #BFA57A;
  --zone-6: #6B5A3C;
  --zone-7: #C6A15B;
  --zone-8: #CBB68F;
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-body);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-products .pb-hero {
  background: var(--cream);
  border-bottom: 3px solid var(--ink);
  padding: clamp(28px, 5vw, 64px) 0 clamp(28px, 4vw, 52px);
}

.page-products .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
  font-size: 13px;
}

.page-products .breadcrumbs__item {
  color: var(--ink-soft);
  text-decoration: none;
}

.page-products .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--gold-bronze);
}

.page-products a.breadcrumbs__item:hover {
  color: var(--red);
  text-decoration: underline;
}

.page-products .pb-eyebrow {
  display: inline-block;
  margin: 0 0 16px;
  padding: 5px 11px;
  border: 2px solid var(--red);
  background: var(--paper);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--red);
}

.page-products .pb-hero__title {
  margin: 0 0 20px;
  max-width: 20em;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 6.2vw, 60px);
  line-height: 1.14;
  letter-spacing: -0.015em;
}

.page-products .pb-hero__lede {
  margin: 0 0 30px;
  max-width: 60ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-products .pb-hero__quick {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 3px solid var(--ink);
  border-left: 3px solid var(--ink);
}

.page-products .pb-hero__quick li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 14px 16px;
  border-right: 3px solid var(--ink);
  border-bottom: 3px solid var(--ink);
  background: var(--paper);
}

.page-products .pb-hero__qn {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(24px, 5vw, 34px);
  line-height: 1;
  color: var(--red);
}

.page-products .pb-hero__ql {
  font-size: 12px;
  line-height: 1.5;
  color: var(--ink-soft);
}

/* ---------- 色带与抬头 ---------- */
.page-products .pb-band {
  padding: clamp(40px, 6vw, 78px) 0;
  border-bottom: 3px solid var(--ink);
}

.page-products .pb-band--paper {
  background: var(--paper);
}

.page-products .pb-band--cream {
  background: var(--cream);
}

.page-products .pb-band--red {
  background: var(--red);
  color: var(--cream);
}

.page-products .pb-band--deep {
  background: var(--red-deep);
  color: var(--cream);
  border-top: 3px solid var(--gold);
  border-bottom: 0;
}

.page-products .pb-head {
  margin-bottom: clamp(20px, 3.4vw, 34px);
}

.page-products .pb-head__eyebrow {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--red);
}

.page-products .pb-head__title {
  display: inline-block;
  margin: 0 0 14px;
  padding-bottom: 12px;
  border-bottom: 3px solid var(--gold);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 3.9vw, 38px);
  line-height: 1.24;
}

.page-products .pb-head__lede {
  margin: 0;
  max-width: 64ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-soft);
}

.page-products .pb-head--onred .pb-head__eyebrow {
  color: var(--gold);
}

.page-products .pb-head--onred .pb-head__title {
  color: var(--cream);
}

.page-products .pb-head--onred .pb-head__lede {
  color: rgba(244, 235, 221, 0.84);
}

/* ---------- 编号轴 + 门廊 ---------- */
.page-products .pb-porch {
  display: grid;
  gap: 22px;
}

.page-products .pb-axis {
  border: 3px solid var(--ink);
  background: var(--paper);
  box-shadow: var(--shadow-hard);
  padding: 12px;
}

.page-products .pb-axis__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--ink-soft);
}

.page-products .pb-axis__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 5px;
}

.page-products .pb-axis__item {
  min-width: 0;
}

.page-products .pb-axis__link {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 6px 5px;
  border: 2px solid var(--line-strong);
  color: var(--ink);
  text-decoration: none;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.page-products .pb-axis__link:hover,
.page-products .pb-axis__link:focus-visible {
  border-color: var(--gold);
  background: var(--cream);
}

.page-products .pb-axis__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13px;
  line-height: 1;
  color: var(--red);
}

.page-products .pb-axis__name {
  font-size: 10px;
  line-height: 1.3;
  color: var(--ink-soft);
}

.page-products .pb-porch__head {
  display: grid;
  gap: 18px;
  margin-bottom: 22px;
}

.page-products .pb-seal {
  margin: 0;
  width: 128px;
  max-width: 100%;
  border: 3px solid var(--gold);
  background: var(--ink);
}

.page-products .pb-seal img {
  display: block;
  width: 100%;
  height: auto;
}

/* ---------- 图片容器 ---------- */
.page-products .pb-figure {
  margin: 0 0 24px;
  border: 3px solid var(--ink);
  background: var(--cream);
  box-shadow: var(--shadow-hard);
}

.page-products .pb-figure .media__frame {
  display: block;
  overflow: hidden;
}

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

.page-products .pb-figure .media__caption {
  padding: 9px 12px;
  border-top: 3px solid var(--ink);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  color: var(--ink-soft);
  background: var(--cream);
}

/* ---------- 门廊卡片 ---------- */
.page-products .pb-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-products .pb-card {
  --zone-accent: var(--gold-bronze);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: 18px 18px 18px 26px;
  border: 3px solid var(--ink);
  background: var(--cream);
  box-shadow: var(--shadow-hard);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.page-products .pb-card::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 7px;
  background: var(--zone-accent);
}

.page-products .pb-card:hover {
  border-color: var(--gold);
  box-shadow: var(--shadow-gold);
}

.page-products .pb-card--z01 { --zone-accent: var(--zone-1); }
.page-products .pb-card--z02 { --zone-accent: var(--zone-2); }
.page-products .pb-card--z03 { --zone-accent: var(--zone-3); }
.page-products .pb-card--z04 { --zone-accent: var(--zone-4); }
.page-products .pb-card--z05 { --zone-accent: var(--zone-5); }
.page-products .pb-card--z06 { --zone-accent: var(--zone-6); }
.page-products .pb-card--z07 { --zone-accent: var(--zone-7); }
.page-products .pb-card--z08 { --zone-accent: var(--zone-8); }

.page-products .pb-card__top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.page-products .pb-card__num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(26px, 4.4vw, 36px);
  line-height: 0.95;
  letter-spacing: -0.02em;
  color: var(--zone-accent);
}

.page-products .pb-card__tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  border: 2px solid var(--ink);
  background: var(--paper);
  font-size: 11px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--ink);
  white-space: nowrap;
}

.page-products .pb-card__tag::before {
  content: "";
  width: 9px;
  height: 9px;
  border: 1px solid var(--ink);
  background: var(--zone-accent);
}

.page-products .pb-card__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 19px;
  line-height: 1.35;
}

.page-products .pb-card__title a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-products .pb-card__title a:hover,
.page-products .pb-card__title a:focus-visible {
  color: var(--red);
  border-bottom-color: var(--gold);
}

.page-products .pb-card__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--ink-soft);
}

.page-products .pb-card__meta {
  margin: 4px 0 0;
  padding-top: 9px;
  border-top: 1px dashed var(--line-strong);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--red);
}

/* ---------- 路线摘要卡 ---------- */
.page-products .pb-routes-wrap {
  display: grid;
  gap: 22px;
}

.page-products .pb-routes {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-products .pb-route {
  --zone-accent: var(--gold-bronze);
  display: grid;
  gap: 12px;
  padding: 18px;
  border: 3px solid var(--ink);
  background: var(--cream);
  color: var(--ink);
  box-shadow: 6px 6px 0 rgba(27, 23, 21, 0.45);
  transition: border-color 0.2s ease;
}

.page-products .pb-route:hover {
  border-color: var(--gold);
}

.page-products .pb-route--z01 { --zone-accent: var(--zone-1); }
.page-products .pb-route--z03 { --zone-accent: var(--zone-3); }
.page-products .pb-route--z04 { --zone-accent: var(--zone-4); }
.page-products .pb-route--z05 { --zone-accent: var(--zone-5); }

.page-products .pb-route__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.page-products .pb-route__code {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 30px;
  line-height: 1;
  color: var(--zone-accent);
}

.page-products .pb-route__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.35;
}

.page-products .pb-route__meta {
  margin: 0;
  display: grid;
  gap: 6px;
}

.page-products .pb-route__meta div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 5px;
  border-bottom: 1px dashed var(--line-strong);
}

.page-products .pb-route__meta dt {
  font-size: 12px;
  color: var(--ink-soft);
  flex: 0 0 auto;
}

.page-products .pb-route__meta dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  text-align: right;
  color: var(--ink);
}

.page-products .pb-route__path {
  margin: 0;
  padding: 8px 10px;
  border: 2px dashed var(--red);
  background: var(--paper);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.85;
  color: var(--red);
  word-break: break-word;
}

.page-products .pb-route__btn {
  justify-self: start;
  text-decoration: none;
  color: var(--ink);
  border: 2px solid var(--ink);
  background: var(--paper);
  padding: 7px 14px;
  font-size: 13px;
  font-weight: 700;
  box-shadow: 4px 4px 0 var(--red);
}

.page-products .pb-route__btn:hover {
  background: var(--red);
  color: var(--cream);
}

.page-products .pb-routefig {
  margin: 0;
  border: 3px solid var(--gold);
  background: var(--paper);
  box-shadow: 6px 6px 0 rgba(27, 23, 21, 0.45);
}

.page-products .pb-routefig img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 320px;
  margin: 0 auto;
  object-fit: cover;
}

.page-products .pb-routefig figcaption {
  padding: 10px 12px;
  border-top: 3px solid var(--gold);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.65;
  color: var(--ink-soft);
}

/* ---------- 电脑端索引 ---------- */
.page-products .pb-desktop {
  display: grid;
  gap: 26px;
}

.page-products .pb-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 3px solid var(--ink);
  border-left: 3px solid var(--ink);
}

.page-products .pb-list li {
  padding: 13px 16px;
  border-right: 3px solid var(--ink);
  border-bottom: 3px solid var(--ink);
  background: var(--paper);
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-soft);
}

.page-products .pb-list strong {
  display: block;
  margin-bottom: 3px;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 800;
  color: var(--ink);
}

.page-products .pb-browser {
  margin: 0;
  border: 3px solid var(--ink);
  background: var(--paper);
  box-shadow: var(--shadow-hard);
}

.page-products .pb-browser__bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 9px 12px;
  border-bottom: 3px solid var(--ink);
  background: var(--ink);
}

.page-products .pb-browser__dot {
  width: 9px;
  height: 9px;
  border: 1px solid var(--gold);
  background: var(--gold-bronze);
}

.page-products .pb-browser__addr {
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--cream);
}

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

.page-products .pb-browser__cap {
  padding: 9px 12px;
  border-top: 3px solid var(--ink);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.65;
  color: var(--ink-soft);
  background: var(--cream);
}

/* ---------- 对照版本 ---------- */
.page-products .pb-tabs__list {
  display: flex;
  flex-wrap: wrap;
  width: fit-content;
  max-width: 100%;
  margin-bottom: 18px;
  border: 3px solid var(--ink);
  background: var(--paper);
}

.page-products .pb-tabs__tab {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 700;
  padding: 10px 18px;
  border: 0;
  border-right: 3px solid var(--ink);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.page-products .pb-tabs__tab:last-child {
  border-right: 0;
}

.page-products .pb-tabs__tab[aria-selected="true"] {
  background: var(--red);
  color: var(--cream);
}

.page-products .pb-tabs__tab:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: -6px;
}

.page-products .pb-table-wrap {
  overflow-x: auto;
  border: 3px solid var(--ink);
  background: var(--paper);
  box-shadow: var(--shadow-hard);
}

.page-products .pb-table {
  width: 100%;
  min-width: 660px;
  border-collapse: collapse;
  font-size: 13.5px;
}

.page-products .pb-table__cap {
  padding: 12px 14px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--ink-soft);
  border-bottom: 3px solid var(--ink);
  background: var(--cream);
}

.page-products .pb-table thead th {
  padding: 12px 14px;
  text-align: left;
  background: var(--ink);
  color: var(--cream);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.07em;
  border-right: 1px solid var(--line-light);
}

.page-products .pb-table thead th:last-child {
  border-right: 0;
}

.page-products .pb-table tbody th {
  padding: 12px 14px;
  text-align: left;
  font-weight: 800;
  color: var(--red);
  border-top: 1px solid var(--line-strong);
  white-space: nowrap;
}

.page-products .pb-table tbody td {
  padding: 12px 14px;
  line-height: 1.72;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
  vertical-align: top;
}

.page-products .pb-table tbody tr:nth-child(even) {
  background: var(--cream);
}

.page-products .pb-notes {
  display: grid;
  gap: 14px;
}

.page-products .pb-note {
  padding: 16px 18px;
  border: 3px solid var(--ink);
  border-left-width: 10px;
  border-left-color: var(--terracotta);
  background: var(--cream);
}

.page-products .pb-note__key {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  color: var(--ink);
}

.page-products .pb-note__val {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-soft);
}

/* ---------- 收藏与返回 ---------- */
.page-products .pb-keep {
  display: grid;
  gap: 26px;
}

.page-products .pb-keep__eyebrow {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--gold);
}

.page-products .pb-keep__title {
  display: inline-block;
  margin: 0 0 14px;
  padding-bottom: 12px;
  border-bottom: 3px solid var(--gold);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(23px, 3.9vw, 36px);
  line-height: 1.24;
  color: var(--cream);
}

.page-products .pb-keep__text {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(244, 235, 221, 0.86);
}

.page-products .pb-keep__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-content: start;
}

.page-products .pb-keep__btn {
  display: inline-block;
  padding: 11px 18px;
  border: 3px solid var(--cream);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.3;
  text-decoration: none;
  color: var(--cream);
  background: transparent;
  box-shadow: 5px 5px 0 rgba(27, 23, 21, 0.5);
  transition: transform 0.18s ease, background-color 0.18s ease, color 0.18s ease;
}

.page-products .pb-keep__btn:hover,
.page-products .pb-keep__btn:focus-visible {
  background: var(--cream);
  color: var(--ink);
}

.page-products .pb-keep__btn:active {
  transform: translate(3px, 3px);
  box-shadow: 2px 2px 0 rgba(27, 23, 21, 0.5);
}

.page-products .pb-keep__btn.btn--primary {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
}

.page-products .pb-keep__btn.btn--primary:hover,
.page-products .pb-keep__btn.btn--primary:focus-visible {
  background: var(--cream);
  border-color: var(--cream);
  color: var(--ink);
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-products .pb-hero__quick {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .pb-axis__list {
    grid-template-columns: repeat(8, minmax(0, 1fr));
  }

  .page-products .pb-axis__name {
    font-size: 11px;
  }
}

@media (min-width: 680px) {
  .page-products .pb-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 860px) {
  .page-products .pb-porch {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 34px;
    align-items: start;
  }

  .page-products .pb-axis {
    position: sticky;
    top: 18px;
  }

  .page-products .pb-axis__list {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .page-products .pb-axis__link {
    flex-direction: row;
    align-items: baseline;
    gap: 8px;
    padding: 6px 8px;
  }

  .page-products .pb-axis__num {
    font-size: 14px;
  }

  .page-products .pb-axis__name {
    font-size: 12px;
  }

  .page-products .pb-porch__head {
    grid-template-columns: minmax(0, 1fr) 150px;
    gap: 24px;
    align-items: start;
  }

  .page-products .pb-seal {
    width: 150px;
    margin-top: 4px;
  }

  .page-products .pb-desktop {
    grid-template-columns: minmax(0, 1fr) minmax(0, 420px);
    gap: 38px;
    align-items: start;
  }

  .page-products .pb-routes-wrap {
    grid-template-columns: minmax(0, 1fr) 240px;
    gap: 26px;
    align-items: start;
  }

  .page-products .pb-keep {
    grid-template-columns: minmax(0, 1fr) minmax(0, 300px);
    gap: 38px;
    align-items: start;
  }

  .page-products .pb-keep__actions {
    flex-direction: column;
  }

  .page-products .pb-keep__btn {
    text-align: center;
  }

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

@media (min-width: 1080px) {
  .page-products .pb-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .page-products .pb-routes {
    gap: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pb-card,
  .page-products .pb-route,
  .page-products .pb-axis__link,
  .page-products .pb-tabs__tab,
  .page-products .pb-keep__btn {
    transition: none;
  }

  .page-products .pb-keep__btn:active {
    transform: none;
  }
}