.page-products {
  --pr-surface: var(--ink-800);
  --pr-gap: clamp(1rem, 2.6vw, 1.7rem);
  padding-bottom: clamp(2.6rem, 7vw, 5rem);
}

.page-products img {
  max-width: 100%;
  height: auto;
}

.page-products .media-frame img {
  display: block;
  width: 100%;
  object-fit: cover;
  border-radius: var(--radius-m);
}

/* ---------- 首屏声明 ---------- */
.page-products .pr-hero {
  padding: clamp(1.1rem, 3vw, 2rem) 0 clamp(1.5rem, 3.4vw, 2.4rem);
  border-bottom: 1px solid var(--line-soft);
}

.page-products .pr-hero h1 {
  margin: 0.7rem 0 1rem;
  font-size: clamp(1.9rem, 6.6vw, 3.4rem);
  line-height: 1.14;
  font-weight: 900;
  letter-spacing: -0.02em;
}

.page-products .pr-hero .lede {
  max-width: 40em;
  margin: 0;
  color: var(--muted);
  line-height: 1.95;
}

.page-products .pr-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.5rem;
}

/* ---------- 数字条 ---------- */
.page-products .pr-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(1.4rem, 3vw, 2rem) 0 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  overflow: hidden;
}

.page-products .pr-stats li {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1rem 1.05rem;
  background: var(--ink-800);
}

.page-products .pr-stats__num {
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 4.6vw, 1.75rem);
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: 0.02em;
}

.page-products .pr-stats__label {
  font-size: 0.8125rem;
  color: var(--muted);
}

/* ---------- 吸顶定位带 ---------- */
.page-products .pr-band {
  position: sticky;
  top: 0;
  z-index: 4;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: clamp(1.2rem, 3vw, 1.8rem);
  padding: 0.7rem 0;
  background: rgba(7, 14, 26, 0.95);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}

.page-products .pr-band__label {
  flex: 0 0 auto;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-products .pr-band__list {
  display: flex;
  gap: 0.5rem;
  margin: 0;
  padding: 0.15rem 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-products .pr-band__item {
  display: inline-block;
  white-space: nowrap;
  padding: 0.4rem 0.85rem;
  font-size: 0.8125rem;
  color: var(--muted);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease),
    transform var(--dur) var(--ease);
}

.page-products .pr-band__item:hover,
.page-products .pr-band__item:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
  transform: translateY(-2px);
}

/* ---------- 章节间距 ---------- */
.page-products .section {
  margin-top: clamp(2.2rem, 5vw, 3.6rem);
}

/* ---------- 合集总览 ---------- */
.page-products .pr-overview {
  display: grid;
  gap: var(--pr-gap);
  align-items: start;
  margin-top: 1.3rem;
}

.page-products .pr-overview .prose p {
  margin-top: 0;
}

/* ---------- 分类与标签 ---------- */
.page-products .pr-taxonomy {
  display: grid;
  gap: var(--pr-gap);
  align-items: start;
  margin-top: 1.3rem;
}

.page-products .pr-taxonomy .prose p {
  margin-top: 0;
}

.page-products .pr-cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.8rem;
  margin-top: clamp(1.2rem, 3vw, 1.8rem);
}

.page-products .pr-card {
  position: relative;
  padding: 1.1rem 1.1rem 1.2rem;
  background: linear-gradient(160deg, var(--ink-800) 0%, var(--ink-700) 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-products .pr-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 1.1rem;
  width: 36px;
  height: 2px;
  background: var(--grad);
  border-radius: 2px;
}

.page-products .pr-card:hover,
.page-products .pr-card:focus-within {
  border-color: var(--cyan);
  transform: translateY(-2px);
}

.page-products .pr-card__code {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  color: var(--orange);
}

.page-products .pr-card__title {
  margin: 0.35rem 0 0.5rem;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text);
}

.page-products .pr-card__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-products .pr-combo {
  margin: 1.3rem 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-soft);
}

.page-products .pr-combo li {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-products .pr-combo__key {
  font-size: 0.8125rem;
  color: var(--cyan);
  letter-spacing: 0.04em;
}

.page-products .pr-combo__val {
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 单篇四项信息 ---------- */
.page-products .pr-fields {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin-top: 1.3rem;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  overflow: hidden;
}

.page-products .pr-field {
  padding: 1.1rem;
  background: var(--ink-800);
}

.page-products .pr-field__label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.8125rem;
  letter-spacing: 0.05em;
  color: var(--cyan);
}

.page-products .pr-field p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.9;
  color: var(--muted);
}

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

/* ---------- 下载资源 ---------- */
.page-products .pr-files {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.9rem;
  margin-top: 1.3rem;
}

.page-products .pr-file {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1.1rem;
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-left: 3px solid var(--orange);
  border-radius: var(--radius-m);
}

.page-products .pr-file__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
}

.page-products .pr-file__name {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text);
}

.page-products .pr-file__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.88;
  color: var(--muted);
}

.page-products .pr-file__spec {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.4rem;
  margin: 0;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--line);
}

.page-products .pr-file__spec div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.8rem;
}

.page-products .pr-file__spec dt {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-products .pr-file__spec dd {
  margin: 0;
  font-size: 0.875rem;
  color: var(--text);
  text-align: right;
}

.page-products .pr-download-media {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pr-gap);
  margin-top: clamp(1.2rem, 3vw, 1.8rem);
  align-items: start;
}

.page-products .pr-download-media .media-frame {
  margin: 0;
}

.page-products .pr-note {
  margin-top: 1.2rem;
  padding: 0.9rem 1.1rem;
  background: rgba(47, 243, 225, 0.06);
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
}

.page-products .pr-note p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-products .pr-note a {
  color: var(--cyan);
  text-underline-offset: 3px;
}

/* ---------- 折叠清单 ---------- */
.page-products .pr-file-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-products .pr-file-list li {
  display: flex;
  gap: 0.7rem;
  padding: 0.5rem 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--muted);
  border-bottom: 1px solid var(--line-soft);
}

.page-products .pr-file-list li:last-child {
  border-bottom: 0;
}

.page-products .pr-file-list .mono {
  flex: 0 0 auto;
  min-width: 2rem;
  color: var(--orange);
  font-size: 0.8125rem;
}

/* ---------- 四种查法 ---------- */
.page-products .pr-ways {
  margin: 1.3rem 0 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-products .pr-way {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 0.9rem;
  padding: 1.15rem 0;
  border-top: 1px solid var(--line-soft);
}

.page-products .pr-way:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.page-products .pr-way__num {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--cyan);
  line-height: 1.5;
  letter-spacing: 0.04em;
}

.page-products .pr-way__body h3 {
  margin: 0 0 0.4rem;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text);
}

.page-products .pr-way__body p {
  margin: 0 0 0.4rem;
  font-size: 0.9375rem;
  line-height: 1.88;
  color: var(--muted);
}

.page-products .pr-way__scene {
  color: var(--text) !important;
  font-size: 0.875rem !important;
  padding-left: 0.7rem;
  border-left: 2px solid var(--orange);
}

/* ---------- 更新节奏 ---------- */
.page-products .banner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 0.9rem;
  margin-top: 1.3rem;
  padding: 0.85rem 1.05rem;
  border: 1px solid var(--orange);
  border-radius: var(--radius-s);
  background: rgba(255, 138, 61, 0.07);
}

.page-products .banner__label {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-products .banner__text {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--text);
}

.page-products .prose a {
  color: var(--cyan);
  text-underline-offset: 3px;
}

/* ---------- 移动端 ---------- */
.page-products .pr-mobile {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pr-gap);
  align-items: start;
  margin-top: 1.3rem;
}

.page-products .pr-mobile .media-frame {
  margin: 0;
  max-width: 320px;
}

.page-products .pr-mobile .prose p {
  margin-top: 0;
}

/* ---------- 收尾 ---------- */
.page-products .pr-cta {
  margin-top: clamp(2.4rem, 5vw, 3.8rem);
  padding: clamp(1.3rem, 3.5vw, 2.2rem);
  background: linear-gradient(140deg, var(--ink-800) 0%, var(--ink-700) 100%);
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  position: relative;
  overflow: hidden;
}

.page-products .pr-cta::after {
  content: "";
  position: absolute;
  inset: auto -60px -80px auto;
  width: 220px;
  height: 220px;
  background: var(--grad);
  opacity: 0.16;
  border-radius: 50%;
  filter: blur(28px);
  pointer-events: none;
}

.page-products .pr-cta h2 {
  position: relative;
  margin: 0 0 0.7rem;
  font-size: clamp(1.4rem, 3.6vw, 2rem);
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-products .pr-cta p {
  position: relative;
  margin: 0;
  max-width: 36em;
  font-size: 0.9375rem;
  line-height: 1.9;
  color: var(--muted);
}

.page-products .pr-cta__links {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.3rem;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-products .pr-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

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

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

  .page-products .pr-file:last-child {
    grid-column: 1 / -1;
  }

  .page-products .pr-combo li {
    flex-direction: row;
    align-items: baseline;
    gap: 1.2rem;
  }

  .page-products .pr-combo__key {
    flex: 0 0 12rem;
  }
}

@media (min-width: 900px) {
  .page-products .pr-overview {
    grid-template-columns: 1.05fr 0.95fr;
  }

  .page-products .pr-taxonomy {
    grid-template-columns: 1.1fr 0.9fr;
  }

  .page-products .pr-download-media {
    grid-template-columns: 0.8fr 1.2fr;
    align-items: end;
  }

  .page-products .pr-mobile {
    grid-template-columns: 0.6fr 1.4fr;
    gap: clamp(1.2rem, 3vw, 2.2rem);
  }

  .page-products .pr-ways {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(1.4rem, 3vw, 2.6rem);
    border-bottom: 1px solid var(--line-soft);
  }

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

@media (min-width: 1024px) {
  .page-products .pr-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products .pr-cards > .pr-card:nth-child(3n + 2) {
    margin-top: 1.6rem;
  }

  .page-products .pr-cards > .pr-card:nth-child(3n) {
    margin-top: 0.8rem;
  }

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

  .page-products .pr-file:last-child {
    grid-column: auto;
  }

  .page-products .pr-overview {
    gap: clamp(1.6rem, 3vw, 2.6rem);
  }
}

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

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