.page-products {
  --pr-hair: rgba(111, 122, 100, .16);
  --pr-card-shadow: 6px 6px 0 rgba(31, 42, 36, .16);
}

/* ---------- 首屏 ---------- */
.page-products .pr-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(1.75rem, 5vw, 3rem) 0 clamp(2.5rem, 6vw, 4.5rem);
  background: linear-gradient(102deg, var(--paper) 0 56%, var(--paper-2) 56% 100%);
  border-bottom: 2px solid var(--ink);
}

.page-products .pr-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--pr-hair) 1px, transparent 1px),
    linear-gradient(to bottom, var(--pr-hair) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: .9;
}

.page-products .pr-hero::after {
  content: "";
  position: absolute;
  right: -6%;
  bottom: -32%;
  z-index: -1;
  width: 46%;
  height: 72%;
  background: var(--gold);
  opacity: .16;
  transform: rotate(-14deg);
  pointer-events: none;
}

.page-products .pr-hero .breadcrumb {
  margin-bottom: clamp(1.5rem, 4vw, 2.75rem);
}

.page-products .pr-hero-grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
  grid-template-columns: 1fr;
}

.page-products .pr-hero-main h1 {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(2rem, 5.6vw, 3.6rem);
  line-height: 1.22;
  letter-spacing: .01em;
  margin: .6rem 0 1rem;
  color: var(--ink);
}

.page-products .pr-lead {
  max-width: 34em;
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  line-height: 1.8;
  color: var(--ink);
}

.page-products .pr-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  margin-top: clamp(1.5rem, 3vw, 2rem);
}

/* 首屏右侧档案卡 */
.page-products .pr-hero-aside {
  align-self: start;
  padding: clamp(1.1rem, 2.5vw, 1.6rem);
  background: var(--paper);
  border: 3px solid var(--ink);
  box-shadow: var(--pr-card-shadow);
}

.page-products .pr-aside-label {
  font-family: var(--mono);
  font-size: .75rem;
  letter-spacing: .12em;
  color: var(--gold-deep);
  margin-bottom: 1rem;
}

.page-products .pr-stats {
  display: grid;
  gap: .9rem;
  margin: 0;
}

.page-products .pr-stat {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: .75rem;
  border-bottom: 1px solid var(--rule);
}

.page-products .pr-stat:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-products .pr-stat dt {
  font-size: .9375rem;
  color: var(--ink);
}

.page-products .pr-stat dd {
  margin: 0;
  font-family: var(--mono);
  font-size: clamp(1.5rem, 3.4vw, 2.1rem);
  line-height: 1;
  color: var(--ink-green);
}

.page-products .pr-stat dd span {
  font-size: .75rem;
  margin-left: .25rem;
  color: var(--gold-deep);
}

.page-products .pr-aside-foot {
  margin-top: 1.1rem;
  padding-top: .85rem;
  border-top: 2px dashed var(--rule);
  font-family: var(--mono);
  font-size: .75rem;
  color: var(--brick);
}

/* ---------- 分类带 ---------- */
.page-products .pr-cat-band {
  padding: clamp(1.75rem, 4vw, 2.75rem) 0 clamp(1.5rem, 3vw, 2rem);
  background: var(--paper);
  border-bottom: 2px solid var(--ink);
}

.page-products .pr-cat-head {
  display: grid;
  gap: .6rem;
  max-width: 46rem;
}

.page-products .pr-cat-head h2 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(1.35rem, 2.8vw, 1.85rem);
  color: var(--ink);
}

.page-products .pr-cat-head p {
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--ink);
  opacity: .88;
}

.page-products .pr-cat-strip {
  list-style: none;
  display: flex;
  gap: .55rem;
  overflow-x: auto;
  padding: clamp(1.1rem, 2.5vw, 1.5rem) var(--edge) 1rem;
  margin: 0;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-products .pr-cat-strip li {
  flex: 0 0 auto;
  scroll-snap-align: start;
}

.page-products .pr-cat-tag {
  display: inline-block;
  padding: .5rem .9rem;
  font-family: var(--mono);
  font-size: .8125rem;
  white-space: nowrap;
  color: var(--ink);
  background: var(--paper-2);
  border: 2px solid var(--ink);
  box-shadow: 3px 3px 0 rgba(31, 42, 36, .14);
}

.page-products .pr-cat-tag.is-current {
  background: var(--highlight);
  border-color: var(--brick);
  color: var(--brick);
}

.page-products .pr-cat-foot {
  margin-top: .5rem;
  font-size: .875rem;
  line-height: 1.8;
  color: var(--ink);
  opacity: .8;
  max-width: 48rem;
}

/* ---------- 章节头 ---------- */
.page-products .pr-sec-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(.9rem, 2.5vw, 1.75rem);
  align-items: start;
  margin-bottom: clamp(1.75rem, 4vw, 2.75rem);
}

.page-products .pr-sec-head .section-index {
  color: var(--gold);
  line-height: .85;
}

.page-products .pr-sec-head-text h2 {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.4vw, 2.35rem);
  line-height: 1.35;
  color: var(--ink);
  margin-bottom: .7rem;
}

.page-products .pr-sec-head-text p {
  max-width: 44em;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--ink);
  opacity: .9;
}

/* ---------- 稳定版 ---------- */
.page-products .pr-stable {
  padding-top: clamp(2.5rem, 6vw, 4.5rem);
}

.page-products .pr-stable-grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.75rem);
  grid-template-columns: 1fr;
  align-items: start;
}

.page-products .pr-figure {
  --media-ratio: 4 / 3;
  margin: 0;
  border: 3px solid var(--ink);
  box-shadow: var(--pr-card-shadow);
  background: var(--paper-2);
  overflow: hidden;
}

.page-products .pr-figure--wide {
  --media-ratio: 16 / 10;
}

.page-products .pr-figure .media-frame,
.page-products .pr-figure img {
  display: block;
  width: 100%;
}

.page-products .pr-figure img {
  height: 100%;
  object-fit: cover;
}

.page-products .pr-stable-body h3 {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(1.15rem, 2.4vw, 1.4rem);
  color: var(--ink);
  margin-bottom: .6rem;
}

.page-products .pr-stable-body > p {
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--ink);
  opacity: .9;
  margin-bottom: 1.1rem;
}

.page-products .pr-facts {
  list-style: none;
  margin: 0 0 1.1rem;
  padding: 0;
  border-top: 2px solid var(--ink);
}

.page-products .pr-facts li {
  display: grid;
  grid-template-columns: 7.5rem 1fr;
  gap: .75rem;
  padding: .7rem .2rem;
  border-bottom: 1px solid var(--rule);
  font-size: .9375rem;
  line-height: 1.6;
}

.page-products .pr-fact-k {
  font-family: var(--mono);
  font-size: .8125rem;
  color: var(--gold-deep);
}

.page-products .pr-fact-v {
  color: var(--ink);
}

.page-products .pr-stable-tip {
  padding: .9rem 1rem;
  background: var(--paper-2);
  border-left: 4px solid var(--gold);
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--ink);
  margin-bottom: 1.4rem;
}

/* ---------- 适配清单 ---------- */
.page-products .pr-checks-wrap {
  padding: clamp(2.5rem, 6vw, 4.5rem) 0;
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
}

.page-products .pr-checks {
  list-style: none;
  margin: 0 0 clamp(1.75rem, 4vw, 2.5rem);
  padding: 0;
  display: grid;
  gap: .85rem;
}

.page-products .pr-check {
  background: var(--paper);
  border: 2px solid var(--ink);
  box-shadow: 4px 4px 0 rgba(31, 42, 36, .13);
}

.page-products .pr-check summary {
  display: flex;
  align-items: center;
  gap: .85rem;
  padding: .85rem 1rem;
  cursor: pointer;
  list-style: none;
}

.page-products .pr-check summary::-webkit-details-marker {
  display: none;
}

.page-products .pr-check summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--mono);
  font-size: 1.1rem;
  color: var(--gold-deep);
}

.page-products .pr-check details[open] summary::after {
  content: "–";
  color: var(--brick);
}

.page-products .pr-check-num {
  font-family: var(--mono);
  font-size: 1.35rem;
  line-height: 1;
  color: var(--gold-deep);
}

.page-products .pr-check-title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.02rem;
  color: var(--ink);
}

.page-products .pr-check-body {
  padding: 0 1rem 1rem 3.2rem;
}

.page-products .pr-check-body p {
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--ink);
  opacity: .9;
}

.page-products .pr-check-body p + p {
  margin-top: .6rem;
}

.page-products .pr-check--six {
  grid-column: 1 / -1;
  position: relative;
  background: var(--paper-2);
  border: 3px solid var(--brick);
  box-shadow: 6px 6px 0 rgba(166, 75, 53, .22);
  padding-top: .35rem;
}

.page-products .pr-check--six .pr-check-num {
  font-size: clamp(2.2rem, 6vw, 3.4rem);
  color: var(--brick);
  letter-spacing: -.02em;
}

.page-products .pr-check--six .pr-check-title {
  font-size: clamp(1.05rem, 2.2vw, 1.3rem);
}

.page-products .pr-check--six .pr-check-body {
  padding-left: 1rem;
}

.page-products .pr-note-rot {
  display: inline-block;
  margin: 0 1rem 1rem;
  padding: .35rem .7rem;
  font-family: var(--mono);
  font-size: .75rem;
  color: var(--brick);
  background: rgba(217, 160, 141, .28);
  border: 1px dashed var(--brick);
  transform: rotate(-2.2deg);
}

.page-products .pr-figure--check {
  --media-ratio: 4 / 3;
  max-width: 46rem;
}

/* ---------- 双栏 ---------- */
.page-products .pr-split-wrap {
  padding-top: clamp(2.5rem, 6vw, 4.5rem);
  padding-bottom: clamp(2.5rem, 6vw, 4.5rem);
}

.page-products .pr-split {
  display: grid;
  gap: clamp(1.5rem, 3.5vw, 2.5rem);
  grid-template-columns: 1fr;
  align-items: start;
}

.page-products .pr-col {
  padding: clamp(1.15rem, 3vw, 1.75rem);
  border: 3px solid var(--ink);
  box-shadow: var(--pr-card-shadow);
}

.page-products .pr-col--files {
  background: var(--paper-2);
}

.page-products .pr-col--cases {
  background: var(--paper);
  border-color: var(--ink-green);
  box-shadow: 6px 6px 0 rgba(36, 75, 58, .22);
}

.page-products .pr-col-label {
  font-family: var(--mono);
  font-size: .75rem;
  letter-spacing: .14em;
  color: var(--brick);
  margin-bottom: .5rem;
}

.page-products .pr-col-head h3 {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(1.2rem, 2.6vw, 1.55rem);
  line-height: 1.4;
  color: var(--ink);
  margin-bottom: .6rem;
}

.page-products .pr-col-head > p {
  font-size: .9375rem;
  line-height: 1.8;
  color: var(--ink);
  opacity: .9;
}

.page-products .pr-figure--col {
  --media-ratio: 4 / 3;
  margin: clamp(1.1rem, 2.5vw, 1.5rem) 0;
}

.page-products .pr-file-list,
.page-products .pr-case-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .9rem;
}

.page-products .pr-file-card {
  padding: .9rem 1rem;
  background: var(--paper);
  border: 2px solid var(--ink);
  box-shadow: 4px 4px 0 rgba(31, 42, 36, .14);
  transition: transform .18s ease, box-shadow .18s ease;
}

.page-products .pr-file-card:hover {
  transform: translateY(-3px);
  box-shadow: 6px 8px 0 rgba(31, 42, 36, .2);
}

.page-products .pr-file-head {
  display: flex;
  align-items: center;
  gap: .6rem;
  margin-bottom: .5rem;
}

.page-products .pr-file-num {
  font-family: var(--mono);
  font-size: .875rem;
  color: var(--brick);
  border-bottom: 2px solid var(--highlight);
}

.page-products .pr-file-card h4 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.05rem;
  line-height: 1.5;
  color: var(--ink);
  margin-bottom: .35rem;
}

.page-products .pr-file-desc {
  font-size: .875rem;
  line-height: 1.75;
  color: var(--ink);
  opacity: .85;
  margin-bottom: .65rem;
}

.page-products .pr-file-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .4rem;
}

.page-products .pr-fmt {
  display: inline-block;
  padding: .12rem .45rem;
  font-family: var(--mono);
  font-size: .6875rem;
  letter-spacing: .06em;
  color: var(--ink-green);
  background: var(--highlight);
  border: 1px solid var(--gold-deep);
}

.page-products .pr-file-meta {
  font-family: var(--mono);
  font-size: .6875rem;
  line-height: 1.6;
  color: var(--rule);
}

.page-products .pr-format {
  margin-top: clamp(1.1rem, 2.5vw, 1.5rem);
  padding-top: 1rem;
  border-top: 2px dashed var(--rule);
}

.page-products .pr-figure--format {
  --media-ratio: 3 / 2;
  margin: 0 0 .9rem;
  box-shadow: 4px 4px 0 rgba(31, 42, 36, .13);
}

.page-products .pr-format-text h4 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--ink);
  margin-bottom: .6rem;
}

.page-products .pr-format-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .5rem;
}

.page-products .pr-format-list li {
  display: flex;
  align-items: baseline;
  gap: .55rem;
  font-size: .875rem;
  line-height: 1.7;
  color: var(--ink);
}

/* 案例卡 */
.page-products .pr-case-card {
  padding: .95rem 1rem;
  background: var(--paper-2);
  border: 2px solid var(--ink-green);
  border-left: 6px solid var(--brick-soft);
  transition: transform .18s ease, box-shadow .18s ease;
}

.page-products .pr-case-card:hover {
  transform: translateY(-3px);
  box-shadow: 5px 7px 0 rgba(36, 75, 58, .18);
}

.page-products .pr-case-topic {
  font-family: var(--mono);
  font-size: .75rem;
  letter-spacing: .08em;
  color: var(--ink-green);
  margin-bottom: .4rem;
}

.page-products .pr-case-card h4 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1.02rem;
  line-height: 1.55;
  color: var(--ink);
  margin-bottom: .65rem;
}

.page-products .pr-case-rows {
  margin: 0 0 .65rem;
  display: grid;
  gap: .45rem;
}

.page-products .pr-case-rows > div {
  display: grid;
  grid-template-columns: 3.1rem 1fr;
  gap: .55rem;
  align-items: start;
}

.page-products .pr-case-rows dt {
  font-family: var(--mono);
  font-size: .6875rem;
  letter-spacing: .08em;
  color: var(--brick);
  padding-top: .15rem;
}

.page-products .pr-case-rows dd {
  margin: 0;
  font-size: .875rem;
  line-height: 1.75;
  color: var(--ink);
}

.page-products .pr-case-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem .9rem;
  padding-top: .6rem;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: .6875rem;
  line-height: 1.7;
  color: var(--gold-deep);
}

.page-products .pr-case-more {
  margin-top: 1rem;
  font-size: .875rem;
  line-height: 1.8;
  color: var(--ink);
  opacity: .88;
}

.page-products .pr-case-more a {
  color: var(--brick);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 收藏 ---------- */
.page-products .pr-saved {
  padding: clamp(2.5rem, 6vw, 4.5rem) 0;
  background: var(--paper-2);
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
}

.page-products .pr-saved-grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
  grid-template-columns: 1fr;
  align-items: start;
}

.page-products .pr-saved-intro .section-index {
  color: var(--gold);
  display: block;
  line-height: .85;
  margin-bottom: .6rem;
}

.page-products .pr-saved-intro h2 {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.4vw, 2.2rem);
  line-height: 1.35;
  color: var(--ink);
  margin-bottom: .8rem;
}

.page-products .pr-saved-intro p {
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--ink);
  opacity: .9;
  margin-bottom: .8rem;
}

.page-products .pr-saved-intro .btn {
  margin-top: .5rem;
}

.page-products .pr-saved-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .7rem;
}

.page-products .pr-saved-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .9rem;
  padding: .9rem 1rem;
  background: var(--paper);
  border: 2px solid var(--ink);
  box-shadow: 4px 4px 0 rgba(31, 42, 36, .13);
}

.page-products .pr-saved-num {
  font-family: var(--mono);
  font-size: 1.1rem;
  line-height: 1.2;
  color: var(--brick);
}

.page-products .pr-saved-list h3 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--ink);
  margin-bottom: .3rem;
}

.page-products .pr-saved-list p {
  font-size: .875rem;
  line-height: 1.75;
  color: var(--ink);
  opacity: .88;
}

/* ---------- 支持 ---------- */
.page-products .pr-support {
  padding-top: clamp(2.5rem, 6vw, 4.5rem);
  padding-bottom: clamp(2.5rem, 6vw, 4.5rem);
}

.page-products .pr-support-card {
  display: grid;
  gap: clamp(1.5rem, 3.5vw, 2.5rem);
  grid-template-columns: 1fr;
  align-items: start;
  padding: clamp(1.5rem, 4vw, 2.75rem);
  background: var(--ink-green);
  color: var(--paper);
  border: 3px solid var(--ink);
  box-shadow: 8px 8px 0 rgba(201, 164, 92, .45);
}

.page-products .pr-support-main .eyebrow {
  color: var(--gold);
}

.page-products .pr-support-main h2 {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.4vw, 2.2rem);
  line-height: 1.35;
  color: var(--paper);
  margin: .5rem 0 .8rem;
}

.page-products .pr-support-main p {
  font-size: .9375rem;
  line-height: 1.85;
  color: var(--paper);
  opacity: .9;
  max-width: 36em;
}

.page-products .pr-support-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem;
  align-content: start;
}

.page-products .pr-support-actions .btn--ghost {
  color: var(--paper);
  border-color: var(--gold);
}

.page-products .pr-support-note {
  flex-basis: 100%;
  font-size: .8125rem;
  line-height: 1.8;
  color: var(--paper);
  opacity: .8;
  padding-top: .5rem;
  border-top: 1px solid rgba(201, 164, 92, .5);
}

.page-products .pr-more-links {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem 1.5rem;
  margin-top: clamp(1.25rem, 3vw, 1.75rem);
  padding-top: 1rem;
  border-top: 1px solid var(--rule);
}

.page-products .pr-more-links a {
  font-family: var(--mono);
  font-size: .8125rem;
  color: var(--brick);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.page-products .pr-more-links a:hover {
  color: var(--gold-deep);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-products .pr-checks {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-products .pr-facts li {
    grid-template-columns: 8.5rem 1fr;
  }
}

@media (min-width: 900px) {
  .page-products .pr-hero-grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-products .pr-stable-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
  }

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

  .page-products .pr-saved-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr);
  }

  .page-products .pr-support-card {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  }
}

@media (min-width: 1040px) {
  .page-products .pr-split {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .page-products .pr-col {
    position: relative;
  }
}

@media (max-width: 599px) {
  .page-products .pr-check-body {
    padding-left: 1rem;
  }

  .page-products .pr-case-rows > div {
    grid-template-columns: 1fr;
    gap: .1rem;
  }

  .page-products .pr-stat {
    flex-direction: column;
    gap: .2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .pr-file-card,
  .page-products .pr-case-card,
  .page-products .pr-cat-tag {
    transition: none;
  }

  .page-products .pr-file-card:hover,
  .page-products .pr-case-card:hover {
    transform: none;
  }

  .page-products .pr-note-rot {
    transform: none;
  }
}