.page-products {
  --pf-gold-line: rgba(232, 195, 122, .5);
  --pf-gold-soft: rgba(232, 195, 122, .26);
  --pf-grid-line: rgba(232, 195, 122, .18);
  --pf-body: #3A312B;

  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  overflow-x: hidden;
}

.page-products h1,
.page-products h2,
.page-products h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -.01em;
  color: var(--ink);
}

.page-products p { margin: 0 0 12px; }
.page-products p:last-child { margin-bottom: 0; }

.page-products a:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}

/* ---------- 面包屑 ---------- */
.page-products .pf-crumb { padding-top: 18px; padding-bottom: 18px; }
.page-products .pf-crumb .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--taupe);
}
.page-products .pf-crumb .breadcrumb a { color: var(--wine); text-decoration: none; }
.page-products .pf-crumb .breadcrumb a:hover { color: var(--wine-mid); text-decoration: underline; }

/* ---------- 通用小件 ---------- */
.page-products .pf-eyebrow {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--taupe);
}
.page-products .pf-eyebrow--gold { color: var(--gold); }

.page-products .pf-mono {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--wine);
}

.page-products .pf-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
  padding-top: 14px;
  margin-bottom: 26px;
  border-top: 1px solid var(--pf-gold-line);
}
.page-products .pf-head__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--wine);
}
.page-products .pf-head__title { font-size: 22px; }
.page-products .pf-head--dark { border-top-color: rgba(232, 195, 122, .55); }
.page-products .pf-head--dark .pf-head__num { color: var(--gold); }
.page-products .pf-head--dark .pf-head__title { color: var(--cream); }

.page-products .pf-shot {
  margin: 0;
  border: 1px solid var(--pf-gold-line);
  background: var(--cream-2);
  overflow: hidden;
}
.page-products .pf-shot img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-products .pf-inline {
  color: var(--wine);
  text-decoration: none;
  border-bottom: 1px solid var(--pf-gold-line);
}
.page-products .pf-inline:hover { border-bottom-color: var(--wine); }

/* ---------- 首屏 ---------- */
.page-products .pf-hero {
  padding: 26px 0 56px;
  border-bottom: 1px solid var(--pf-gold-soft);
  background-image: linear-gradient(to right, var(--pf-grid-line) 1px, transparent 1px);
  background-size: 25% 100%;
}
.page-products .pf-hero__grid { display: grid; gap: 32px; }
.page-products .pf-hero__h1 { font-size: 34px; margin: 6px 0 18px; }
.page-products .pf-hero__lede {
  font-size: 16px;
  color: var(--pf-body);
  max-width: 34em;
  margin-bottom: 24px;
}
.page-products .pf-hero__acts { display: flex; flex-wrap: wrap; gap: 12px; }

.page-products .pf-hero__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--pf-gold-line);
}
.page-products .pf-hero__list li { border-bottom: 1px solid var(--pf-gold-soft); }
.page-products .pf-hero__list a {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
  padding: 14px 4px;
  text-decoration: none;
  transition: background-color var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}
.page-products .pf-hero__list a:hover,
.page-products .pf-hero__list a:focus-visible {
  background-color: rgba(232, 195, 122, .14);
  padding-left: 12px;
}
.page-products .pf-hero__list-t { font-family: var(--font-serif); font-size: 17px; font-weight: 800; }
.page-products .pf-hero__list em {
  font-style: normal;
  font-size: 13px;
  color: var(--taupe);
  margin-left: auto;
}

/* ---------- 四条产品线 ---------- */
.page-products .pf-lines { padding: 56px 0; }
.page-products .pf-lines__list { border-bottom: 1px solid var(--pf-gold-soft); }
.page-products .pf-line {
  display: grid;
  gap: 8px;
  padding: 26px 0;
  border-top: 1px solid var(--pf-gold-soft);
}
.page-products .pf-line__num {
  font-family: var(--font-serif);
  font-weight: 800;
  font-size: 40px;
  line-height: 1;
  letter-spacing: .02em;
  color: rgba(232, 195, 122, .5);
}
@supports (-webkit-text-stroke: 1px #000) {
  .page-products .pf-line__num {
    color: transparent;
    -webkit-text-stroke: 1px var(--gold);
  }
}
.page-products .pf-line__name { font-size: 22px; margin-bottom: 8px; }
.page-products .pf-line__main p { font-size: 15px; color: var(--pf-body); max-width: 30em; }
.page-products .pf-line__meta { margin: 0; display: grid; gap: 12px; }
.page-products .pf-line__meta dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--taupe);
  margin-bottom: 2px;
}
.page-products .pf-line__meta dd { margin: 0; font-size: 14px; line-height: 1.65; color: var(--pf-body); }
.page-products .pf-lines__fig { margin-top: 34px; }

/* ---------- 参数 + 索引区 ---------- */
.page-products .pf-spec {
  padding: 56px 0;
  border-top: 1px solid var(--pf-gold-soft);
  border-bottom: 1px solid var(--pf-gold-soft);
  background-color: #F8F3E8;
  background-image:
    linear-gradient(to right, var(--pf-grid-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--pf-grid-line) 1px, transparent 1px);
  background-size: 88px 88px;
}
.page-products .pf-spec__grid { display: grid; gap: 32px; }
.page-products .pf-spec__fig { margin-top: 30px; }
.page-products .pf-block + .pf-block { margin-top: 44px; }

.page-products .pf-ios { display: grid; gap: 24px; margin-bottom: 8px; }
.page-products .pf-ios__text p { font-size: 15px; color: var(--pf-body); margin-bottom: 16px; }
.page-products .pf-ios__points { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.page-products .pf-ios__points li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  color: var(--pf-body);
}
.page-products .pf-ios__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 8px;
  height: 1px;
  background: var(--gold);
}
.page-products .pf-ios__points strong { color: var(--wine); font-weight: 600; }

.page-products .pf-block > p { font-size: 15px; color: var(--pf-body); max-width: 36em; }

.page-products .pf-cols {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  border-top: 1px solid var(--pf-gold-line);
}
.page-products .pf-cols li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--pf-gold-soft);
}
.page-products .pf-cols__n {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--wine);
  min-width: 22px;
}
.page-products .pf-cols__t { font-weight: 600; font-size: 15px; }
.page-products .pf-cols__d { font-size: 13px; color: var(--taupe); margin-left: auto; }

.page-products .pf-param { border: 1px solid var(--pf-gold-line); background: var(--cream); }
.page-products .pf-param__h {
  margin: 0;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--wine);
  background: rgba(232, 195, 122, .16);
  border-bottom: 1px solid var(--pf-gold-line);
}
.page-products .pf-param__list { margin: 0; padding: 6px 16px 14px; }
.page-products .pf-param__row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px dotted rgba(123, 110, 94, .4);
}
.page-products .pf-param__row:last-child { border-bottom: 0; }
.page-products .pf-param__row dt { font-size: 13px; color: var(--taupe); }
.page-products .pf-param__row dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--wine);
  white-space: nowrap;
}

/* ---------- 四步流程 ---------- */
.page-products .pf-steps { padding: 56px 0; border-bottom: 1px solid var(--pf-gold-soft); }
.page-products .pf-steps__list { list-style: none; margin: 0; padding: 0; display: grid; gap: 24px; }
.page-products .pf-step { border-top: 2px solid var(--wine); padding-top: 16px; }
.page-products .pf-step__n {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--wine);
}
.page-products .pf-step h3 { font-size: 18px; margin-bottom: 8px; }
.page-products .pf-step p { font-size: 14px; color: var(--pf-body); margin: 0; }

/* ---------- 案例墙 ---------- */
.page-products .pf-cases {
  padding: 56px 0;
  color: var(--cream);
  background-color: var(--green);
  background-image: repeating-linear-gradient(45deg, rgba(232, 195, 122, .06) 0 1px, transparent 1px 9px);
}
.page-products .pf-cases__lede {
  font-size: 15px;
  color: rgba(245, 239, 227, .82);
  max-width: 40em;
  margin-bottom: 26px;
}
.page-products .pf-cases__fig { margin-bottom: 28px; }
.page-products .pf-dims {
  list-style: none;
  margin: 0 0 32px;
  padding: 0;
  display: grid;
  gap: 14px;
}
.page-products .pf-dims li { border-top: 1px solid rgba(232, 195, 122, .5); padding-top: 12px; }
.page-products .pf-dims strong {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-serif);
  font-size: 16px;
  color: var(--gold-lt);
}
.page-products .pf-dims span { font-size: 13px; color: rgba(245, 239, 227, .74); }

.page-products .pf-cases__wall { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; }
.page-products .pf-case {
  padding: 16px;
  border: 1px solid rgba(232, 195, 122, .32);
  background: rgba(245, 239, 227, .04);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}
.page-products .pf-case:hover,
.page-products .pf-case:focus-within {
  transform: translateY(-2px);
  border-color: var(--gold);
  background: rgba(245, 239, 227, .08);
}
.page-products .pf-case h3 { font-size: 17px; color: var(--cream); margin-bottom: 12px; }
.page-products .pf-case__tags { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 6px; }
.page-products .pf-chip {
  padding: 2px 7px;
  border: 1px solid rgba(232, 195, 122, .4);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .12em;
  color: var(--gold-lt);
}

/* ---------- 版本资料 ---------- */
.page-products .pf-vers { padding: 56px 0; border-bottom: 1px solid var(--pf-gold-soft); }
.page-products .pf-vers__grid { display: grid; gap: 28px; }
.page-products .pf-vers__body > p { font-size: 15px; color: var(--pf-body); max-width: 34em; }
.page-products .pf-tier { list-style: none; margin: 22px 0 24px; padding: 0; display: grid; gap: 12px; }
.page-products .pf-tier li { border: 1px solid var(--pf-gold-line); background: var(--cream); padding: 14px; }
.page-products .pf-tier h3 { font-size: 16px; margin-bottom: 6px; }
.page-products .pf-tier p { font-size: 13px; color: var(--pf-body); margin: 0; line-height: 1.65; }
.page-products .pf-tier--stable { border-top: 5px solid var(--wine); }
.page-products .pf-tier--compat { border-top: 3px solid var(--gold); }
.page-products .pf-tier--archive { border-top: 1px solid var(--taupe); }
.page-products .pf-vers__note {
  font-size: 14px;
  color: var(--pf-body);
  border-left: 2px solid var(--gold);
  padding-left: 14px;
}

/* ---------- 三种组合 ---------- */
.page-products .pf-combo {
  padding: 56px 0;
  color: var(--cream);
  background-color: var(--wine);
  background-image: linear-gradient(160deg, rgba(110, 21, 38, .9), rgba(74, 14, 30, 1) 65%);
}
.page-products .pf-combo__grid { display: grid; gap: 18px; }
.page-products .pf-combo__card {
  padding: 20px 18px;
  border: 1px solid rgba(232, 195, 122, .42);
  background: rgba(245, 239, 227, .05);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-products .pf-combo__card:hover { transform: translateY(-2px); border-color: var(--gold); }
.page-products .pf-combo__card h3 { font-size: 20px; color: var(--cream); margin-bottom: 10px; }
.page-products .pf-combo__card p { font-size: 14px; color: rgba(245, 239, 227, .82); }
.page-products .pf-combo__path {
  margin-top: 14px;
  padding-top: 10px;
  border-top: 1px solid rgba(232, 195, 122, .35);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--gold-lt);
}
.page-products .pf-link {
  display: inline-block;
  margin-top: 10px;
  font-size: 14px;
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(232, 195, 122, .6);
}
.page-products .pf-link:hover { color: var(--gold-lt); border-bottom-color: var(--gold-lt); }

/* ---------- 收尾 ---------- */
.page-products .pf-cta { padding: 48px 0 64px; }
.page-products .pf-cta__in { display: grid; gap: 20px; }
.page-products .pf-cta h2 { font-size: 22px; margin-bottom: 8px; }
.page-products .pf-cta p { font-size: 15px; color: var(--pf-body); max-width: 36em; margin: 0; }
.page-products .pf-cta__acts { display: flex; flex-wrap: wrap; gap: 12px; }

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-products .pf-cases__wall { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .page-products .pf-dims { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
  .page-products .pf-tier { grid-template-columns: repeat(3, minmax(0, 1fr)); align-items: end; gap: 14px; }
}

@media (min-width: 680px) {
  .page-products .pf-hero__h1 { font-size: 44px; }
}

@media (min-width: 700px) {
  .page-products .pf-ios { grid-template-columns: minmax(0, 1fr) 210px; gap: 28px; align-items: start; }
}

@media (min-width: 760px) {
  .page-products .pf-head__title { font-size: 34px; }
  .page-products .pf-steps__list { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; }
  .page-products .pf-step { border-top: 0; border-left: 1px solid var(--pf-gold-line); padding: 0 18px; }
  .page-products .pf-step:first-child { padding-left: 0; }
  .page-products .pf-cta h2 { font-size: 34px; }
}

@media (min-width: 820px) {
  .page-products .pf-line { grid-template-columns: 108px minmax(0, 1.2fr) minmax(0, 1fr); gap: 28px; align-items: start; }
  .page-products .pf-line__num { font-size: 56px; }
  .page-products .pf-combo__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
  .page-products .pf-combo__card:nth-child(2) { margin-top: 24px; }
}

@media (min-width: 860px) {
  .page-products .pf-cta__in { grid-template-columns: minmax(0, 1fr) auto; align-items: center; gap: 40px; }
}

@media (min-width: 900px) {
  .page-products .pf-hero { padding: 36px 0 64px; }
  .page-products .pf-hero__grid { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 0; }
  .page-products .pf-hero__h1 { font-size: 56px; }
  .page-products .pf-hero__list {
    margin-left: 40px;
    padding-left: 40px;
    border-left: 1px solid var(--pf-gold-line);
  }
  .page-products .pf-vers__grid { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 44px; align-items: start; }
}

@media (min-width: 960px) {
  .page-products .pf-cases__wall { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
  .page-products .pf-case:nth-child(3n + 2) { margin-top: 26px; }
}

@media (min-width: 980px) {
  .page-products .pf-spec__grid { grid-template-columns: minmax(0, 1fr) 312px; gap: 48px; align-items: start; }
  .page-products .pf-param { position: sticky; top: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pf-hero__list a,
  .page-products .pf-case,
  .page-products .pf-combo__card { transition: none; }
  .page-products .pf-case:hover,
  .page-products .pf-case:focus-within,
  .page-products .pf-combo__card:hover { transform: none; }
}