.page-products {
  --pp-gap: clamp(28px, 5vw, 72px);
  --pp-rule: 1px solid var(--line);
  display: block;
  background: var(--ink);
  color: var(--bone);
}

/* ---------- 首屏 ---------- */
.page-products .pp-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(18px, 3vw, 30px) 0 clamp(48px, 8vw, 96px);
}

.page-products .pp-hero::before {
  content: "";
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 120%;
  background:
    radial-gradient(60% 52% at 88% 4%, rgba(200, 16, 46, 0.34), transparent 66%),
    radial-gradient(48% 42% at 4% 96%, rgba(178, 89, 59, 0.16), transparent 70%);
  pointer-events: none;
}

.page-products .pp-hero > .rh-wrap {
  position: relative;
  z-index: 1;
}

.page-products .pp-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 5vw, 56px);
  margin-top: clamp(26px, 5vw, 54px);
}

.page-products .pp-kicker {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--silver);
}

.page-products .pp-hero__title {
  margin: 18px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(38px, 8.4vw, 88px);
  line-height: 1.02;
  letter-spacing: -0.03em;
  color: var(--bone);
}

.page-products .pp-hero__title em {
  display: block;
  font-style: normal;
  color: var(--curtain);
}

.page-products .pp-hero__lede {
  margin: 22px 0 0;
  max-width: 36em;
  font-size: clamp(16px, 1.7vw, 18px);
  line-height: 1.78;
  color: rgba(245, 240, 230, 0.76);
}

.page-products .pp-hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(24px, 3.6vw, 36px);
}

.page-products .pp-hero__rail {
  border-top: var(--pp-rule);
  padding-top: 18px;
}

.page-products .pp-hero__rail-title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--silver);
}

.page-products .pp-hero__rail ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-products .pp-hero__rail a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 0;
  border-bottom: var(--pp-rule);
  color: var(--bone);
  text-decoration: none;
  font-size: 16px;
  letter-spacing: 0.01em;
  transition: color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}

.page-products .pp-hero__rail a:hover {
  color: var(--ember);
  padding-left: 6px;
}

.page-products .pp-hero__rail-no {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--curtain);
}

/* ---------- 通用区块头 ---------- */
.page-products .pp-head {
  max-width: 62ch;
}

.page-products .pp-head__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(27px, 4.2vw, 52px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--bone);
}

.page-products .pp-head__lede {
  margin: 16px 0 0;
  font-size: 17px;
  line-height: 1.75;
  color: rgba(245, 240, 230, 0.7);
}

/* ---------- 分类入口总览 ---------- */
.page-products .pp-overview {
  padding: clamp(52px, 8vw, 104px) 0 clamp(40px, 6vw, 76px);
  background: linear-gradient(180deg, rgba(20, 20, 26, 0.9), rgba(10, 10, 12, 0));
}

.page-products .pp-board {
  position: relative;
  margin-top: clamp(28px, 4.4vw, 48px);
  border: var(--pp-rule);
  background: var(--charcoal);
  overflow: hidden;
}

.page-products .pp-board__media {
  position: absolute;
  inset: 0;
  opacity: 0.26;
}

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

.page-products .pp-board__metrics {
  position: relative;
  margin: 0;
  padding: clamp(22px, 4vw, 46px);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(20px, 3.4vw, 38px);
}

.page-products .pp-metric {
  border-top: 1px solid var(--line-strong);
  padding-top: 14px;
  min-width: 0;
}

.page-products .pp-metric dt {
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--silver);
}

.page-products .pp-metric dd {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 5.4vw, 56px);
  line-height: 1;
  letter-spacing: -0.035em;
  color: var(--bone);
}

.page-products .pp-metric dd small {
  margin-left: 6px;
  font-size: 0.36em;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--silver);
}

.page-products .pp-board__note {
  position: relative;
  margin: 0;
  padding: 16px clamp(22px, 4vw, 46px) 20px;
  border-top: var(--pp-rule);
  font-size: 14px;
  line-height: 1.7;
  color: var(--silver);
}

/* ---------- 四条索引线 ---------- */
.page-products .pp-lines {
  padding: clamp(46px, 7vw, 88px) 0;
}

.page-products .pp-lines__list {
  list-style: none;
  margin: clamp(30px, 4.6vw, 52px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(30px, 5vw, 66px);
}

.page-products .pp-line {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3.4vw, 44px);
  align-items: center;
  border-top: var(--pp-rule);
  padding-top: clamp(22px, 3vw, 34px);
}

.page-products .pp-line__no {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--curtain);
  border-bottom: 2px solid var(--curtain);
  padding-bottom: 4px;
}

.page-products .pp-line__title {
  margin: 16px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 3.4vw, 38px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--bone);
}

.page-products .pp-line__desc {
  margin: 14px 0 0;
  max-width: 40ch;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(245, 240, 230, 0.74);
}

.page-products .pp-line__use {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--silver);
}

.page-products .pp-line__use .rh-label {
  margin-right: 8px;
}

.page-products .pp-line__media {
  margin: 0;
  border: var(--pp-rule);
  overflow: hidden;
}

.page-products .pp-line__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.06);
}

/* ---------- 分类索引 ---------- */
.page-products .pp-catalog {
  padding: clamp(46px, 7vw, 88px) 0;
  background: var(--charcoal);
}

.page-products .rh-filters {
  margin-top: clamp(26px, 4vw, 42px);
}

.page-products .pp-wall {
  list-style: none;
  margin: clamp(26px, 4vw, 44px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line);
  border: var(--pp-rule);
}

.page-products .pp-cat {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(18px, 2.6vw, 28px);
  background: var(--charcoal);
  transition: background var(--dur) var(--ease);
}

.page-products .pp-cat:hover {
  background: #1b1b22;
}

.page-products .pp-cat__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-products .pp-cat__no {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--curtain);
}

.page-products .pp-copy {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--silver);
  background: none;
  border: 1px solid var(--line);
  border-radius: var(--pill);
  padding: 4px 10px;
  cursor: pointer;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .pp-copy:hover {
  color: var(--bone);
  border-color: var(--line-strong);
}

.page-products .pp-cat__name {
  margin: 4px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(20px, 2.4vw, 26px);
  letter-spacing: -0.01em;
  color: var(--bone);
}

.page-products .pp-cat__desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(245, 240, 230, 0.68);
}

.page-products .pp-cat__meta {
  margin: 0;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--silver);
}

.page-products .pp-cat__lines {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-products [data-filter-item][data-filtered] {
  display: none;
}

/* ---------- 一键定位步骤 ---------- */
.page-products .pp-locate {
  padding: clamp(48px, 7vw, 92px) 0;
}

.page-products .pp-locate__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 5vw, 60px);
}

.page-products .pp-steps {
  list-style: none;
  margin: clamp(26px, 4vw, 42px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border-top: var(--pp-rule);
}

.page-products .pp-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 18px;
  padding: 22px 0;
  border-bottom: var(--pp-rule);
  background: var(--ink);
}

.page-products .pp-step__no {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--curtain);
  padding-top: 3px;
}

.page-products .pp-step__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(18px, 2vw, 21px);
  letter-spacing: -0.01em;
  color: var(--bone);
}

.page-products .pp-step p {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.76;
  color: rgba(245, 240, 230, 0.7);
}

.page-products .pp-schematic {
  border: var(--pp-rule);
  background: var(--charcoal);
  padding: clamp(20px, 3vw, 32px);
  align-self: start;
}

.page-products .pp-schematic svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-products .pp-schematic__note {
  margin: 18px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--silver);
}

/* ---------- 入口变化与端侧 ---------- */
.page-products .pp-shift {
  padding: clamp(48px, 7vw, 92px) 0;
  background: linear-gradient(180deg, rgba(20, 20, 26, 0.92), rgba(10, 10, 12, 0));
}

.page-products .pp-shift__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 52px);
  margin-top: clamp(28px, 4.4vw, 46px);
}

.page-products .pp-fold .rh-fold__btn {
  font-size: 16px;
}

.page-products .pp-shift__media {
  margin: 0;
  border: var(--pp-rule);
  overflow: hidden;
  align-self: start;
}

.page-products .pp-shift__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.06);
}

.page-products .pp-shift__caption {
  padding: 14px 16px;
  border-top: var(--pp-rule);
  font-size: 13px;
  line-height: 1.7;
  color: var(--silver);
  background: var(--charcoal);
}

/* ---------- 整理与更新节奏 ---------- */
.page-products .pp-rhythm {
  padding: clamp(48px, 7vw, 92px) 0;
}

.page-products .pp-rhythm__list {
  list-style: none;
  margin: clamp(28px, 4.4vw, 48px) 0 0;
  padding: 0;
  display: grid;
  gap: clamp(24px, 3.6vw, 40px);
}

.page-products .pp-rhythm__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  padding-top: 18px;
  border-top: 1px solid var(--line-strong);
}

.page-products .pp-rhythm__mark {
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--curtain);
}

.page-products .pp-rhythm__body h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(19px, 2.2vw, 24px);
  letter-spacing: -0.01em;
  color: var(--bone);
}

.page-products .pp-rhythm__body p {
  margin: 10px 0 0;
  max-width: 52ch;
  font-size: 15px;
  line-height: 1.78;
  color: rgba(245, 240, 230, 0.7);
}

/* ---------- 收束 ---------- */
.page-products .pp-next {
  padding: clamp(44px, 6vw, 80px) 0 clamp(64px, 9vw, 112px);
}

.page-products .pp-next__inner {
  position: relative;
  border: var(--pp-rule);
  border-left: 3px solid var(--curtain);
  background:
    radial-gradient(80% 120% at 100% 0%, rgba(200, 16, 46, 0.22), transparent 62%),
    var(--charcoal);
  padding: clamp(26px, 4.4vw, 52px);
}

.page-products .pp-next__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(24px, 3.6vw, 40px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--bone);
}

.page-products .pp-next__lede {
  margin: 16px 0 0;
  max-width: 54ch;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(245, 240, 230, 0.74);
}

.page-products .pp-next__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3.4vw, 34px);
}

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

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

@media (min-width: 900px) {
  .page-products .pp-hero__grid {
    grid-template-columns: minmax(0, 7.4fr) minmax(230px, 4.6fr);
    align-items: end;
    gap: clamp(40px, 5vw, 76px);
  }

  .page-products .pp-line {
    grid-template-columns: minmax(0, 5.2fr) minmax(0, 6.8fr);
    gap: clamp(30px, 4vw, 64px);
  }

  .page-products .pp-line:nth-child(even) .pp-line__text {
    order: 2;
  }

  .page-products .pp-line:nth-child(even) .pp-line__media {
    order: 1;
  }

  .page-products .pp-line--text-only {
    grid-template-columns: minmax(0, 1fr);
  }

  .page-products .pp-locate__grid {
    grid-template-columns: minmax(0, 7fr) minmax(280px, 5fr);
    align-items: start;
  }

  .page-products .pp-shift__grid {
    grid-template-columns: minmax(0, 6.4fr) minmax(0, 5.6fr);
    align-items: start;
  }

  .page-products .pp-rhythm__item {
    grid-template-columns: minmax(140px, 2fr) minmax(0, 8fr);
    gap: clamp(20px, 3vw, 44px);
    align-items: baseline;
  }
}

@media (min-width: 1100px) {
  .page-products .pp-wall {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pp-hero__rail a,
  .page-products .pp-cat,
  .page-products .pp-copy {
    transition: none;
  }
}