.page-products {
  --pp-rule-dark: rgba(138, 217, 212, 0.22);
  --pp-rule-dark-soft: rgba(138, 217, 212, 0.12);
  --pp-rule-light: rgba(16, 24, 40, 0.12);
  --pp-gold-deep: #8A5A12;
  --pp-gap: clamp(20px, 3vw, 34px);
  --pp-band-pad: clamp(48px, 6.5vw, 96px);
}

/* ---------- 首屏 ---------- */

.page-products .pp-hero {
  padding-block: clamp(22px, 4vw, 40px) clamp(46px, 6.5vw, 92px);
}

.page-products .pp-hero__grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  margin-top: clamp(26px, 4.5vw, 56px);
}

.page-products .pp-hero__kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--lake-soft);
}

.page-products .pp-hero__title {
  margin: 0;
  font-size: clamp(32px, 6.4vw, 66px);
  line-height: 1.08;
  letter-spacing: -0.012em;
  font-weight: 800;
  color: var(--paper);
  max-width: 18ch;
}

.page-products .pp-hero__lead {
  margin: clamp(18px, 2.4vw, 28px) 0 0;
  max-width: 58ch;
  font-size: clamp(16px, 1.35vw, 18px);
  line-height: 1.78;
  color: rgba(244, 247, 250, 0.8);
}

.page-products .pp-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 34px);
}

.page-products .pp-hero__stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--pp-rule-dark-soft);
  border-top: 1px solid var(--pp-rule-dark);
  border-bottom: 1px solid var(--pp-rule-dark);
}

.page-products .pp-stat {
  background: var(--night);
  padding: 18px 16px 20px;
}

.page-products .pp-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.4vw, 38px);
  font-weight: 700;
  line-height: 1.1;
  color: var(--gold);
  letter-spacing: -0.01em;
}

.page-products .pp-stat__label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.5;
  color: rgba(244, 247, 250, 0.66);
}

/* ---------- 六条产品线 ---------- */

.page-products .pp-lines-band {
  padding-block: var(--pp-band-pad);
}

.page-products .pp-lines-art {
  margin: 0 0 clamp(24px, 3.4vw, 40px);
}

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

.page-products .pp-lines {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--pp-rule-dark-soft);
  border: 1px solid var(--pp-rule-dark);
}

.page-products .pp-line-card {
  background: var(--indigo);
  padding: clamp(20px, 2.6vw, 30px);
  display: flex;
  flex-direction: column;
  gap: 12px;
  border-top: 2px solid transparent;
  transition: border-color 220ms ease-out, background-color 220ms ease-out;
}

.page-products .pp-line-card:hover {
  border-top-color: var(--lake);
  background: #1B3068;
}

.page-products .pp-line-card__name {
  margin: 0;
  font-size: clamp(18px, 1.7vw, 21px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--paper);
}

.page-products .pp-line-card__scene {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(244, 247, 250, 0.74);
  flex: 1;
}

.page-products .pp-line-card__foot {
  margin: 4px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--pp-rule-dark);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.page-products .pp-line-card__price {
  font-family: var(--font-mono);
  font-size: clamp(19px, 2vw, 24px);
  font-weight: 700;
  color: var(--gold);
  letter-spacing: -0.01em;
}

.page-products .pp-line-card__unit {
  font-size: 13px;
  color: rgba(244, 247, 250, 0.6);
}

/* ---------- 对照表 ---------- */

.page-products .pp-table-band {
  padding-block: var(--pp-band-pad);
  scroll-margin-top: 96px;
}

.page-products .pp-table-art {
  margin: 0 0 clamp(22px, 3vw, 34px);
}

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

.page-products .pp-compare {
  border-top: 2px solid var(--lake);
  padding-top: clamp(18px, 2.4vw, 26px);
}

.page-products .pp-filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}

.page-products .pp-filter-bar__title {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--slate);
  margin-right: 4px;
}

.page-products .pp-filter-input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.page-products .pp-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: 1px solid var(--line-lake);
  border-radius: 999px;
  background: var(--warm);
  color: var(--ink);
  font-size: 14px;
  line-height: 1.2;
  cursor: pointer;
  user-select: none;
  transition: background-color 180ms ease-out, border-color 180ms ease-out, opacity 180ms ease-out;
}

.page-products .pp-chip::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lake);
}

.page-products .pp-chip:hover {
  background: #E8F5F4;
}

.page-products .pp-compare:has(#pp-band-low:not(:checked)) .pp-chip[for="pp-band-low"],
.page-products .pp-compare:has(#pp-band-mid:not(:checked)) .pp-chip[for="pp-band-mid"],
.page-products .pp-compare:has(#pp-band-high:not(:checked)) .pp-chip[for="pp-band-high"] {
  opacity: 0.38;
  border-style: dashed;
}

.page-products .pp-compare:has(.pp-filter-input:focus-visible) .pp-chip {
  outline: 2px solid var(--lake);
  outline-offset: 2px;
}

.page-products .pp-compare:has(#pp-band-low:not(:checked)) .pp-row[data-band="low"],
.page-products .pp-compare:has(#pp-band-mid:not(:checked)) .pp-row[data-band="mid"],
.page-products .pp-compare:has(#pp-band-high:not(:checked)) .pp-row[data-band="high"] {
  display: none;
}

.page-products .pp-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--pp-rule-light);
  background: var(--warm);
  -webkit-overflow-scrolling: touch;
}

.page-products .pp-table {
  width: 100%;
  min-width: 880px;
}

.page-products .pp-table tbody tr {
  transition: background-color 160ms ease-out;
}

.page-products .pp-table tbody tr:nth-child(even) {
  background: rgba(15, 156, 151, 0.05);
}

.page-products .pp-table tbody tr:hover {
  background: rgba(232, 180, 74, 0.16);
}

.page-products .pp-cell-line {
  font-weight: 600;
  color: var(--ink);
  text-align: left;
  white-space: nowrap;
}

.page-products .pp-fee {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--pp-gold-deep);
  text-align: right;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.page-products .pp-col-fee {
  text-align: right;
}

.page-products .pp-compare__note {
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--slate);
  max-width: 76ch;
}

/* ---------- 版本刻度尺 ---------- */

.page-products .pp-version-band {
  padding-block: var(--pp-band-pad);
}

.page-products .pp-version-art {
  margin: 0 0 clamp(24px, 3.2vw, 38px);
}

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

.page-products .pp-ruler-scroll {
  overflow-x: auto;
  padding-bottom: 8px;
  -webkit-overflow-scrolling: touch;
}

.page-products .pp-ruler {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(62px, 1fr);
  gap: 8px;
  min-width: 780px;
  border-bottom: 1px solid var(--pp-rule-dark);
}

.page-products .pp-ruler__node {
  display: grid;
  grid-template-rows: 132px auto auto;
  gap: 8px;
  justify-items: center;
  padding-bottom: 12px;
}

.page-products .pp-ruler__track {
  display: flex;
  align-items: flex-end;
  width: 100%;
  height: 132px;
}

.page-products .pp-ruler__bar {
  display: block;
  width: 100%;
  height: var(--h, 60%);
  min-height: 10px;
  border-radius: 3px 3px 0 0;
  background: linear-gradient(180deg, var(--lake-soft) 0%, var(--lake) 100%);
  transition: height 320ms ease-out;
}

.page-products .pp-ruler__node:hover .pp-ruler__bar {
  background: linear-gradient(180deg, var(--gold-soft) 0%, var(--gold) 100%);
}

.page-products .pp-ruler__node:nth-child(1) .pp-ruler__bar { --h: 58%; }
.page-products .pp-ruler__node:nth-child(2) .pp-ruler__bar { --h: 58%; }
.page-products .pp-ruler__node:nth-child(3) .pp-ruler__bar { --h: 64%; }
.page-products .pp-ruler__node:nth-child(4) .pp-ruler__bar { --h: 64%; }
.page-products .pp-ruler__node:nth-child(5) .pp-ruler__bar { --h: 70%; }
.page-products .pp-ruler__node:nth-child(6) .pp-ruler__bar { --h: 70%; }
.page-products .pp-ruler__node:nth-child(7) .pp-ruler__bar { --h: 76%; }
.page-products .pp-ruler__node:nth-child(8) .pp-ruler__bar { --h: 76%; }
.page-products .pp-ruler__node:nth-child(9) .pp-ruler__bar { --h: 84%; }
.page-products .pp-ruler__node:nth-child(10) .pp-ruler__bar { --h: 84%; }
.page-products .pp-ruler__node:nth-child(11) .pp-ruler__bar { --h: 94%; }
.page-products .pp-ruler__node:nth-child(12) .pp-ruler__bar { --h: 94%; }

.page-products .pp-ruler__ver {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--lake-soft);
  letter-spacing: 0.02em;
}

.page-products .pp-ruler__fee {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-products .pp-version-notes {
  margin-top: clamp(28px, 4vw, 48px);
  gap: clamp(18px, 2.4vw, 30px);
}

.page-products .pp-version-note h3 {
  margin: 0 0 10px;
  padding-top: 14px;
  border-top: 1px solid var(--pp-rule-dark);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--paper);
}

.page-products .pp-version-note p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(244, 247, 250, 0.72);
}

.page-products .pp-version-note .text-link {
  color: var(--gold-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-products .pp-version-note .text-link:hover {
  color: var(--gold);
}

/* ---------- 包含与另计 ---------- */

.page-products .pp-scope-band {
  padding-block: var(--pp-band-pad);
}

.page-products .pp-scope {
  gap: clamp(18px, 2.6vw, 32px);
  margin-top: clamp(8px, 1.6vw, 16px);
}

.page-products .pp-scope-col {
  padding: clamp(22px, 2.6vw, 32px);
  background: var(--warm);
  border: 1px solid var(--pp-rule-light);
}

.page-products .pp-scope-col--in {
  border-left: 4px solid var(--moss);
}

.page-products .pp-scope-col--out {
  border-left: 4px solid var(--slate);
}

.page-products .pp-scope-col__title {
  margin: 0 0 18px;
  font-size: clamp(18px, 1.7vw, 21px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--ink);
}

.page-products .pp-scope-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-products .pp-scope-list li {
  position: relative;
  padding-left: 30px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
}

.page-products .pp-scope-list li::before {
  position: absolute;
  left: 0;
  top: 1px;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.6;
}

.page-products .pp-scope-col--in .pp-scope-list li::before {
  content: "✓";
  color: var(--moss);
  font-weight: 700;
}

.page-products .pp-scope-col--out .pp-scope-list li::before {
  content: "—";
  color: var(--slate);
}

.page-products .pp-scope-col--out .pp-scope-list li {
  color: var(--slate);
}

/* ---------- 估算与导出 ---------- */

.page-products .pp-estimate-band {
  padding-block: var(--pp-band-pad);
  scroll-margin-top: 96px;
}

.page-products .pp-estimate {
  display: grid;
  gap: clamp(24px, 3.4vw, 44px);
  align-items: center;
}

.page-products .pp-estimate__panel {
  background: var(--indigo);
  border: 1px solid var(--pp-rule-dark);
  padding: clamp(22px, 3vw, 36px);
}

.page-products .pp-estimate__title {
  margin: 0 0 12px;
  font-size: clamp(19px, 1.9vw, 23px);
  font-weight: 700;
  color: var(--paper);
}

.page-products .pp-estimate__hint {
  margin: 0 0 22px;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(244, 247, 250, 0.68);
}

.page-products .pp-estimate__rows {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--pp-rule-dark);
}

.page-products .pp-estimate__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--pp-rule-dark-soft);
}

.page-products .pp-estimate__dur {
  font-size: 16px;
  color: var(--paper);
}

.page-products .pp-estimate__range {
  font-family: var(--font-mono);
  font-size: clamp(17px, 1.8vw, 21px);
  font-weight: 700;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.page-products .pp-estimate__foot {
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: rgba(244, 247, 250, 0.66);
}

.page-products .pp-estimate__foot .text-link {
  color: var(--gold-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-products .pp-estimate__art {
  margin: 0;
}

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

.page-products .pp-export {
  margin-top: clamp(34px, 5vw, 68px);
  padding-top: clamp(26px, 3.4vw, 44px);
  border-top: 1px solid var(--pp-rule-dark);
  display: grid;
  gap: clamp(24px, 3.4vw, 46px);
  align-items: center;
}

.page-products .pp-export__art {
  margin: 0;
  max-width: 320px;
}

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

.page-products .pp-export__copy h3 {
  margin: 0 0 14px;
  font-size: clamp(20px, 2vw, 26px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--paper);
}

.page-products .pp-export__copy p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(244, 247, 250, 0.75);
  max-width: 62ch;
}

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

/* ---------- 复核节奏 ---------- */

.page-products .pp-review-band {
  padding-block: var(--pp-band-pad);
}

.page-products .pp-review {
  gap: clamp(20px, 2.8vw, 36px);
}

.page-products .pp-review__list {
  margin: 0;
  padding: 0;
}

.page-products .pp-review__item {
  padding: 18px 0;
  border-top: 1px solid var(--pp-rule-light);
}

.page-products .pp-review__item:first-child {
  border-top: 2px solid var(--lake);
}

.page-products .pp-review__item dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--slate);
  margin-bottom: 8px;
}

.page-products .pp-review__item dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ink);
}

.page-products .pp-review__item .text-link {
  color: var(--pp-gold-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 600;
}

.page-products .pp-review__closing {
  margin: clamp(34px, 4.6vw, 62px) 0 0;
  padding-top: clamp(20px, 2.6vw, 30px);
  border-top: 1px solid var(--pp-rule-light);
  font-size: clamp(18px, 2vw, 24px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--ink);
  max-width: 44ch;
}

/* ---------- 响应式 ---------- */

@media (min-width: 720px) {
  .page-products .pp-lines {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 960px) {
  .page-products .pp-hero__grid {
    grid-template-columns: minmax(0, 1.6fr) minmax(280px, 0.8fr);
    align-items: end;
  }

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

  .page-products .pp-estimate {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.85fr);
  }

  .page-products .pp-export {
    grid-template-columns: minmax(0, 0.5fr) minmax(0, 1.5fr);
  }
}

@media (max-width: 639px) {
  .page-products .pp-hero__title {
    max-width: 100%;
  }

  .page-products .pp-hero__actions .btn {
    flex: 1 1 auto;
    text-align: center;
  }

  .page-products .pp-compare__note {
    font-size: 13px;
  }

  .page-products .pp-export__art {
    max-width: 220px;
  }

  .page-products .pp-review__closing {
    font-size: 17px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pp-line-card,
  .page-products .pp-chip,
  .page-products .pp-ruler__bar,
  .page-products .pp-table tbody tr {
    transition: none;
  }

  .page-products .pp-ruler__node:hover .pp-ruler__bar {
    background: linear-gradient(180deg, var(--lake-soft) 0%, var(--lake) 100%);
  }
}