.page-products {
  --prd-gap: clamp(16px, 2.4vw, 32px);
  --prd-cut: 16px;
  --prd-rule: var(--rule);
}

/* ---------- 00 开篇 ---------- */
.page-products .prd-open {
  padding: clamp(20px, 4vw, 40px) 0 clamp(32px, 6vw, 72px);
  border-bottom: 1px solid var(--rule);
}

.page-products .prd-open__kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--copper-500);
}

.page-products .prd-open__kicker span {
  color: var(--abyss-600);
}

.page-products .prd-open__title {
  margin: 16px 0 0;
  max-width: 22ch;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(30px, 6vw, 54px);
  line-height: 1.18;
  letter-spacing: 0.01em;
  color: var(--abyss-900);
}

.page-products .prd-open__grid {
  display: grid;
  gap: var(--prd-gap);
  margin-top: clamp(24px, 4vw, 40px);
}

.page-products .prd-open__lead p {
  margin: 0 0 16px;
  color: var(--ink-70);
  font-size: 17px;
  line-height: 1.8;
}

.page-products .prd-open__lead .lede {
  color: var(--ink-900);
  font-size: 18px;
}

.page-products .prd-open__note {
  padding-left: 14px;
  border-left: 3px solid var(--copper-300);
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--ink-70) !important;
}

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

/* 目录卡 */
.page-products .prd-dir {
  padding: 22px 22px 18px;
  background: var(--paper-200);
  border: 1px solid var(--rule);
  clip-path: polygon(0 0, calc(100% - var(--prd-cut)) 0, 100% var(--prd-cut), 100% 100%, 0 100%);
}

.page-products .prd-dir__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--abyss-600);
}

.page-products .prd-dir__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 2px;
}

.page-products .prd-dir__link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid var(--rule);
  color: var(--ink-900);
  text-decoration: none;
  font-size: 15px;
  transition: color var(--dur) ease, padding-left var(--dur) ease;
}

.page-products .prd-dir__list li:last-child .prd-dir__link {
  border-bottom: 0;
}

.page-products .prd-dir__link .mono {
  color: var(--copper-500);
  font-size: 13px;
}

.page-products .prd-dir__link:hover,
.page-products .prd-dir__link:focus-visible {
  color: var(--abyss-600);
  padding-left: 6px;
}

/* ---------- 章节通用 ---------- */
.page-products .prd-sec {
  padding: clamp(40px, 7vw, 88px) 0;
}

.page-products .chapter {
  display: grid;
  gap: 12px;
  margin-bottom: clamp(24px, 4vw, 44px);
  padding-top: 18px;
  border-top: 2px solid var(--copper-500);
}

.page-products .chapter__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(44px, 9vw, 92px);
  font-weight: 700;
  line-height: 0.86;
  letter-spacing: -0.03em;
  color: var(--copper-500);
}

.page-products .chapter__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(26px, 4.2vw, 40px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--abyss-900);
}

.page-products .chapter__lede {
  margin: 0;
  max-width: 68ch;
  font-size: 17px;
  line-height: 1.8;
  color: var(--ink-70);
}

/* ---------- 01 总览 ---------- */
.page-products .prd-overview {
  display: grid;
  gap: var(--prd-gap);
  align-items: start;
}

.page-products .prd-roles {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-products .prd-role {
  position: relative;
  padding: 18px 18px 18px 22px;
  background: var(--paper-100);
  border: 1px solid var(--rule);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
  transition: transform var(--dur) ease, border-color var(--dur) ease;
}

.page-products .prd-role::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14px;
  bottom: 14px;
  width: 3px;
  background: var(--copper-300);
  transition: background var(--dur) ease, top var(--dur) ease, bottom var(--dur) ease;
}

.page-products .prd-role:hover {
  transform: translateY(-2px);
  border-color: var(--rule-strong);
}

.page-products .prd-role:hover::before {
  background: var(--copper-500);
  top: 4px;
  bottom: 4px;
}

.page-products .prd-role__title {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  color: var(--abyss-800);
}

.page-products .prd-role__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-70);
}

.page-products .prd-overview__fig {
  margin: 0;
}

.page-products .prd-overview__fig .figure__media {
  clip-path: polygon(var(--prd-cut) 0, 100% 0, 100% 100%, 0 100%, 0 var(--prd-cut));
}

/* 统计条 */
.page-products .prd-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(28px, 5vw, 48px) 0 0;
  background: var(--rule);
  border: 1px solid var(--rule);
}

.page-products .prd-stats .stat {
  padding: 20px 18px;
  background: var(--paper-100);
}

.page-products .prd-stats .stat__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--abyss-800);
  font-variant-numeric: tabular-nums;
}

.page-products .prd-stats .stat__unit {
  margin-left: 4px;
  font-size: 14px;
  font-weight: 500;
  color: var(--copper-500);
}

.page-products .prd-stats .stat__label {
  margin: 6px 0 0;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--ink-50);
}

/* ---------- 02 参数表 ---------- */
.page-products .prd-fig-wide {
  margin: 0 0 clamp(20px, 3vw, 32px);
}

.page-products .prd-fig-wide .figure__media {
  clip-path: polygon(0 0, calc(100% - var(--prd-cut)) 0, 100% var(--prd-cut), 100% 100%, 0 100%);
}

.page-products .prd-tablehint {
  margin: 0 0 16px;
  padding: 10px 14px;
  background: var(--paper-100);
  border-left: 3px solid var(--copper-300);
  font-size: 14px;
  color: var(--ink-70);
}

.page-products .prd-group {
  margin-bottom: 14px;
  border: 1px solid var(--rule);
  background: var(--paper-100);
}

.page-products .prd-group__sum {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--abyss-800);
  background: var(--paper-200);
  transition: background var(--dur) ease, color var(--dur) ease;
}

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

.page-products .prd-group__sum::after {
  content: "＋";
  font-size: 15px;
  color: var(--copper-500);
}

.page-products .prd-group[open] > .prd-group__sum::after {
  content: "－";
}

.page-products .prd-group__sum:hover {
  background: var(--paper-100);
  color: var(--copper-500);
}

.page-products .prd-group__count {
  margin-left: auto;
  font-size: 13px;
  color: var(--ink-50);
}

.page-products .prd-group .table-scroll {
  border: 0;
}

.page-products .prd-sec .data-table th,
.page-products .prd-sec .data-table td {
  padding: 12px 16px;
  white-space: nowrap;
}

.page-products .prd-sec .data-table tbody th {
  font-weight: 600;
  color: var(--abyss-800);
}

.page-products .prd-sec .data-table tbody tr:hover {
  background: var(--paper-200);
}

.page-products .prd-note {
  margin: 20px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-70);
}

.page-products .prd-note a {
  color: var(--abyss-600);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-products .prd-note a:hover,
.page-products .prd-note a:focus-visible {
  color: var(--copper-500);
}

/* ---------- 03 季度比价（深色区） ---------- */
.page-products .prd-sec--dark {
  background: var(--abyss-900);
}

.page-products .prd-sec--dark .chapter {
  border-top-color: var(--copper-500);
}

.page-products .prd-sec--dark .chapter__title {
  color: var(--paper-100);
}

.page-products .prd-sec--dark .chapter__lede {
  color: var(--paper-70);
}

.page-products .prd-fig-band {
  margin: 0 0 clamp(22px, 3.4vw, 36px);
}

.page-products .prd-fig-band .figure__media {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--prd-cut)), calc(100% - var(--prd-cut)) 100%, 0 100%);
}

.page-products .prd-chart {
  padding: clamp(18px, 3vw, 30px);
  background: var(--abyss-800);
  border: 1px solid var(--rule-dark);
}

.page-products .prd-chart__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--paper-70);
}

.page-products .prd-chart__svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-products .prd-chart__grid line {
  stroke: var(--rule-dark);
  stroke-width: 1;
}

.page-products .prd-chart__axis text {
  fill: var(--paper-50);
  font-family: var(--font-mono);
  font-size: 12px;
}

.page-products .prd-chart__line {
  fill: none;
  stroke-width: 2;
  stroke-linejoin: round;
}

.page-products .prd-chart__line--now {
  stroke: var(--copper-500);
  stroke-width: 3;
}

.page-products .prd-chart__line--prev {
  stroke: var(--paper-50);
}

.page-products .prd-chart__line--last {
  stroke: var(--abyss-600);
  stroke-dasharray: 5 6;
}

.page-products .prd-chart__dots circle {
  fill: var(--copper-300);
}

.page-products .prd-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-products .prd-legend__item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--paper-70);
}

.page-products .prd-legend__swatch {
  width: 22px;
  height: 3px;
  background: var(--paper-50);
}

.page-products .prd-legend__swatch--now {
  background: var(--copper-500);
}

.page-products .prd-legend__swatch--prev {
  background: var(--paper-50);
}

.page-products .prd-legend__swatch--last {
  background: var(--abyss-600);
}

.page-products .prd-table--dark {
  margin-top: clamp(22px, 3.4vw, 34px);
  border: 1px solid var(--rule-dark);
  background: var(--abyss-800);
}

.page-products .prd-table--dark .data-table th,
.page-products .prd-table--dark .data-table td {
  padding: 13px 16px;
  white-space: nowrap;
  color: var(--paper-100);
  border-bottom: 1px solid var(--rule-dark);
}

.page-products .prd-table--dark .data-table thead th {
  background: var(--abyss-700);
  color: var(--paper-100);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
}

.page-products .prd-table--dark .data-table tbody th {
  color: var(--paper-100);
}

.page-products .prd-table--dark .data-table tbody tr:hover {
  background: var(--abyss-700);
}

.page-products .prd-note--dark {
  color: var(--paper-70);
}

.page-products .prd-note--dark a {
  color: var(--copper-300);
}

/* ---------- 04 权益类型索引 ---------- */
.page-products .prd-index {
  align-items: start;
}

.page-products .prd-index__col {
  display: grid;
  gap: 20px;
}

.page-products .prd-index__fig {
  margin: 0;
}

.page-products .prd-index__fig .figure__media {
  clip-path: polygon(0 var(--prd-cut), var(--prd-cut) 0, 100% 0, 100% 100%, 0 100%);
}

.page-products .prd-cards {
  display: grid;
  gap: clamp(24px, 4vw, 40px);
}

.page-products .prd-cat__title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--rule);
  font-size: 17px;
  font-weight: 700;
  color: var(--abyss-800);
}

.page-products .prd-cat__title .mono {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--copper-500);
}

.page-products .prd-cards__grid {
  display: grid;
  gap: 12px;
  grid-template-columns: minmax(0, 1fr);
}

.page-products .prd-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 16px 18px 18px;
  background: var(--paper-100);
  border: 1px solid var(--rule);
  transition: transform var(--dur) ease, border-color var(--dur) ease;
}

.page-products .prd-card:hover {
  transform: translateY(-2px);
  border-color: var(--copper-300);
}

.page-products .prd-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.page-products .prd-card__no {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ink-50);
}

.page-products .prd-card .card__title {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  color: var(--abyss-800);
}

.page-products .prd-card .card__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink-70);
}

.page-products .prd-card .card__meta {
  margin: 4px 0 0;
  padding-top: 10px;
  border-top: 1px dashed var(--rule);
  font-size: 12px;
  color: var(--ink-50);
}

/* ---------- 05 保修询价 ---------- */
.page-products .prd-warranty {
  align-items: start;
}

.page-products .prd-warranty__text h3 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 22px;
  color: var(--abyss-900);
}

.page-products .prd-warranty__text ul {
  margin: 0 0 18px;
  padding-left: 20px;
  color: var(--ink-70);
  font-size: 16px;
  line-height: 1.85;
}

.page-products .prd-warranty__text p {
  margin: 0 0 22px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-70);
}

.page-products .prd-warranty__cards {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

/* ---------- 06 流程与交付物 ---------- */
.page-products .prd-flow {
  margin: 0 0 clamp(28px, 5vw, 52px);
  padding: 0 0 0 26px;
  list-style: none;
  position: relative;
  display: grid;
  gap: 22px;
}

.page-products .prd-flow::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--copper-500), var(--copper-300) 60%, rgba(184, 115, 51, 0.15));
}

.page-products .prd-step {
  position: relative;
}

.page-products .prd-step::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 6px;
  width: 12px;
  height: 12px;
  background: var(--paper-100);
  border: 2px solid var(--copper-500);
  transform: rotate(45deg);
}

.page-products .prd-step__num {
  display: block;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--copper-500);
}

.page-products .prd-step__title {
  margin: 4px 0 6px;
  font-size: 18px;
  font-weight: 700;
  color: var(--abyss-800);
}

.page-products .prd-step__text {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-70);
}

.page-products .prd-deliver {
  display: grid;
  gap: var(--prd-gap);
  align-items: start;
}

.page-products .prd-deliver__grid {
  display: grid;
  gap: 12px;
}

.page-products .prd-deliver__item {
  padding: 18px;
  background: var(--paper-200);
  border: 1px solid var(--rule);
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
}

.page-products .prd-deliver__item h3 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--abyss-800);
}

.page-products .prd-deliver__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-70);
}

.page-products .prd-deliver__fig {
  margin: 0;
}

.page-products .prd-deliver__fig .figure__media {
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--prd-cut)), calc(100% - var(--prd-cut)) 100%, 0 100%);
}

.page-products .prd-cta {
  margin-top: clamp(28px, 5vw, 52px);
  padding: clamp(22px, 3.4vw, 34px);
  background: var(--abyss-800);
  clip-path: polygon(0 0, calc(100% - var(--prd-cut)) 0, 100% var(--prd-cut), 100% 100%, 0 100%);
}

.page-products .prd-cta__text {
  margin: 0 0 20px;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--paper-70);
}

.page-products .prd-cta__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-products .prd-chapter? {
    display: block;
  }
  .page-products .prd-cards__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .prd-deliver__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .prd-roles {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 980px) {
  .page-products .prd-open__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-products .chapter {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 32px;
    align-items: start;
  }

  .page-products .prd-overview {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

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

  .page-products .prd-index__col {
    position: sticky;
    top: var(--sticky-offset);
  }

  .page-products .prd-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 26px 34px;
    padding-left: 0;
  }

  .page-products .prd-flow::before {
    display: none;
  }

  .page-products .prd-step {
    padding-left: 26px;
    border-left: 2px solid rgba(184, 115, 51, 0.35);
  }

  .page-products .prd-step::before {
    left: -7px;
    top: 8px;
    width: 12px;
    height: 12px;
  }

  .page-products .prd-deliver {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

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

@media (min-width: 1200px) {
  .page-products .prd-cards__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-products .prd-cat {
    padding-left: 12px;
  }
}

@media (max-width: 479px) {
  .page-products .prd-open__title {
    max-width: none;
  }
  .page-products .prd-cta__links .btn {
    width: 100%;
    text-align: center;
  }
}