.page-products {
  --lib-gap: clamp(20px, 3vw, 36px);
  --lib-edge: 1px solid var(--line);
  --lib-pad: clamp(18px, 3.2vw, 32px);
}

.page-products .wrap {
  min-width: 0;
}

.page-products .lib-shell {
  display: grid;
  gap: var(--lib-gap);
  padding-top: clamp(18px, 3vw, 32px);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-products .lib-main {
  min-width: 0;
}

.page-products .crumb {
  padding-top: clamp(14px, 2vw, 22px);
  font-size: 13px;
  color: var(--muted);
}

.page-products .crumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--fast) var(--ease), border-color var(--fast) var(--ease);
}

.page-products .crumb a:hover,
.page-products .crumb a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--line-cyan);
}

/* 左侧分类框架 */
.page-products .lib-side {
  border-top: 1px solid var(--line-cyan);
  padding-top: 14px;
}

.page-products .lib-side-title {
  margin: 0 0 12px;
  font-family: var(--ff-sans);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .18em;
  color: var(--cyan);
}

.page-products .lib-side-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
}

.page-products .lib-side-link {
  display: inline-block;
  padding: 4px 0;
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--fast) var(--ease), border-color var(--fast) var(--ease);
}

.page-products .lib-side-link:hover,
.page-products .lib-side-link:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--cyan);
}

.page-products .lib-side-link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-products .lib-side-note {
  margin: 16px 0 0;
  padding-left: 10px;
  border-left: 2px solid var(--orange);
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

/* 首屏 */
.page-products .lib-hero {
  position: relative;
  display: grid;
  gap: clamp(20px, 3.4vw, 34px);
  padding-bottom: clamp(28px, 4vw, 44px);
  border-bottom: 1px solid var(--line);
}

.page-products .lib-hero::before {
  content: "";
  position: absolute;
  inset: -8% -4% 12% -4%;
  background-image:
    linear-gradient(to right, var(--line-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line-soft) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: .85;
  pointer-events: none;
  z-index: 0;
}

.page-products .lib-hero-copy,
.page-products .lib-hero-fig {
  position: relative;
  z-index: 1;
  min-width: 0;
}

.page-products .lib-hero .display {
  font-family: var(--ff-serif);
  font-weight: 700;
  font-size: clamp(2rem, 5.4vw, 3.5rem);
  line-height: 1.16;
  letter-spacing: -0.02em;
  margin: 10px 0 0;
  color: var(--ink);
}

.page-products .lib-hero .lede {
  margin-top: 16px;
  max-width: 42ch;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.65;
}

.page-products .lib-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 16px;
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-products .lib-stats .stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-left: 10px;
  border-left: 2px solid var(--line-cyan);
  min-width: 0;
}

.page-products .lib-stats .stat-num {
  font-family: var(--ff-mono);
  font-variant-numeric: tabular-nums;
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
}

.page-products .lib-stats .stat-label {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.4;
}

.page-products .lib-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-products .lib-hero-fig {
  margin: 0;
  border: 1px solid var(--line-signal);
  overflow: hidden;
}

.page-products figure {
  margin: 0;
}

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

.page-products .media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 通用章节 */
.page-products .lib-section {
  padding: clamp(34px, 5.5vw, 64px) 0;
  border-bottom: 1px solid var(--line);
}

.page-products .lib-section-head {
  max-width: 62ch;
}

.page-products .lib-section-head .display {
  margin: 8px 0 0;
  font-family: var(--ff-serif);
  font-weight: 700;
  color: var(--ink);
}

.page-products .lib-section-head .lede {
  margin-top: 14px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.65;
}

/* 三级分类 */
.page-products .lib-overview {
  display: grid;
  gap: 22px;
  margin-top: 26px;
}

.page-products .lib-overview-text p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
  max-width: 56ch;
}

.page-products .lib-overview-text p:last-child {
  margin-bottom: 0;
}

.page-products .lib-overview-fig {
  border: var(--lib-edge);
  background: var(--graphite);
  overflow: hidden;
}

/* 五类文件 */
.page-products .lib-types {
  display: grid;
  gap: 26px;
  margin-top: 28px;
}

.page-products .res-list {
  list-style: none;
  margin: 0;
  padding: 0;
  min-width: 0;
}

.page-products .res-type {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  transition: background var(--fast) var(--ease);
}

.page-products .res-type:last-child {
  border-bottom: 1px solid var(--line);
}

.page-products .res-type:hover {
  background: var(--graphite);
}

.page-products .res-type-index {
  font-family: var(--ff-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  color: var(--cyan);
  letter-spacing: .08em;
}

.page-products .res-type-name {
  font-family: var(--ff-sans);
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
}

.page-products .res-type-desc {
  font-size: 14px;
  line-height: 1.65;
  color: var(--muted);
}

.page-products .res-type-role {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-products .lib-types-fig {
  border: var(--lib-edge);
  background: var(--panel);
  overflow: hidden;
  max-width: 420px;
}

/* 呼吸区 */
.page-products .lib-breathe {
  padding: clamp(44px, 8vw, 96px) 0 clamp(44px, 8vw, 96px);
  border-bottom: 1px solid var(--line);
}

.page-products .lib-breathe-text {
  margin: 0;
  font-family: var(--ff-serif);
  font-weight: 700;
  font-size: clamp(1.4rem, 3.6vw, 2.3rem);
  line-height: 1.45;
  letter-spacing: -0.01em;
  color: var(--ice);
}

/* 重点资料包 */
.page-products .lib-pack {
  display: grid;
  gap: 24px;
  margin-top: 26px;
  padding: var(--lib-pad);
  border: 1px solid var(--line-signal);
  background:
    linear-gradient(140deg, rgba(255, 107, 44, .10), transparent 58%),
    var(--graphite);
}

.page-products .lib-pack-body {
  min-width: 0;
}

.page-products .lib-pack-body > p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
  max-width: 56ch;
}

.page-products .lib-pack-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .lib-pack-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--muted);
}

.page-products .lib-pack-dot {
  flex: none;
  width: 8px;
  height: 8px;
  margin-top: 7px;
  background: var(--orange);
}

.page-products .lib-pack-fold {
  margin-top: 20px;
  border-top: 1px solid var(--line-signal);
}

.page-products .lib-pack-fig {
  border: 1px solid var(--line);
  overflow: hidden;
}

/* 下载格式 */
.page-products .lib-fmt-grid {
  display: grid;
  gap: 26px;
  margin-top: 26px;
}

.page-products .lib-fmt-list {
  min-width: 0;
}

.page-products .lib-fmt-list .fold {
  border-top: 1px solid var(--line);
}

.page-products .lib-fmt-list .fold:last-child {
  border-bottom: 1px solid var(--line);
}

.page-products .lib-fmt-list .fold-toggle[aria-expanded="true"] {
  color: var(--cyan);
}

.page-products .lib-fmt-side {
  display: grid;
  gap: 18px;
  min-width: 0;
}

.page-products .lib-fmt-fig {
  border: var(--lib-edge);
  background: var(--graphite);
  overflow: hidden;
}

.page-products .lib-checksum {
  padding: 18px;
  border: 1px solid var(--line-cyan);
  background: var(--deep);
}

.page-products .lib-checksum-title {
  margin: 0 0 8px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-products .lib-checksum-code {
  margin: 0 0 10px;
  font-family: var(--ff-mono);
  font-size: 14px;
  color: var(--ink);
  word-break: break-word;
}

.page-products .lib-checksum-note {
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
}

/* 固定入口 */
.page-products .lib-fixed {
  display: grid;
  gap: 22px;
  margin-top: 24px;
}

.page-products .lib-fixed-main p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
  max-width: 58ch;
}

.page-products .lib-inline-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
}

.page-products .lib-text-link {
  display: inline-block;
  font-size: 14px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-cyan);
  padding-bottom: 2px;
  transition: color var(--fast) var(--ease), border-color var(--fast) var(--ease);
}

.page-products .lib-text-link:hover,
.page-products .lib-text-link:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--orange);
}

.page-products .lib-fixed-card {
  padding: 18px;
  background: var(--panel);
  border: 1px solid var(--line);
}

.page-products .lib-fixed-label {
  margin: 0 0 12px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--orange);
}

.page-products .lib-fixed-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .lib-fixed-list li {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 4px 12px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--line-soft);
  font-size: 14px;
}

.page-products .lib-fixed-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-products .lib-fixed-key {
  color: var(--ink);
  font-weight: 600;
}

.page-products .lib-fixed-val {
  color: var(--muted);
  font-family: var(--ff-mono);
  font-size: 12px;
}

/* 适用场景 */
.page-products .lib-scene-grid {
  display: grid;
  gap: 0;
  margin-top: 26px;
}

.page-products .lib-scene {
  padding: 20px 0;
  border-top: 1px solid var(--line);
}

.page-products .lib-scene:last-child {
  border-bottom: 1px solid var(--line);
}

.page-products .lib-scene-title {
  margin: 0 0 8px;
  font-family: var(--ff-sans);
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
}

.page-products .lib-scene p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

/* 后续指引 */
.page-products .lib-next {
  border-bottom: 1px solid var(--line);
}

.page-products .lib-next-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products .lib-next-link {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 4px 16px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  background: var(--graphite);
  color: var(--ink);
  text-decoration: none;
  font-size: 15px;
  font-weight: 600;
  transition: border-color var(--fast) var(--ease), background var(--fast) var(--ease), transform var(--fast) var(--ease);
}

.page-products .lib-next-link:hover,
.page-products .lib-next-link:focus-visible {
  border-color: var(--orange);
  background: var(--panel);
  transform: translateY(-1px);
}

.page-products .lib-next-desc {
  font-family: var(--ff-sans);
  font-size: 12px;
  font-weight: 400;
  color: var(--muted);
}

@media (min-width: 720px) {
  .page-products .lib-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-products .res-type {
    grid-template-columns: 46px minmax(0, 190px) minmax(0, 1fr);
    align-items: baseline;
    column-gap: 16px;
    row-gap: 6px;
    padding: 18px 0;
  }

  .page-products .res-type-role {
    grid-column: 3;
  }

  .page-products .res-type:nth-child(2n) {
    padding-left: 22px;
    border-left: 1px solid var(--line-soft);
  }

  .page-products .res-type:nth-child(3n) {
    padding-left: 10px;
  }

  .page-products .lib-scene-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(24px, 4vw, 56px);
  }

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

  .page-products .lib-checksum {
    padding: 22px;
  }
}

@media (min-width: 900px) {
  .page-products .lib-shell {
    grid-template-columns: 216px minmax(0, 1fr);
    align-items: start;
    column-gap: clamp(28px, 4vw, 52px);
  }

  .page-products .lib-side {
    position: sticky;
    top: calc(var(--bar-h) + 20px);
    border-top: 1px solid var(--line-cyan);
    padding-top: 16px;
  }

  .page-products .lib-side-nav ul {
    display: grid;
    gap: 2px;
  }

  .page-products .lib-side-link {
    display: block;
    padding: 7px 0 7px 10px;
    border-left: 1px solid var(--line);
    border-bottom: 0;
    font-size: 14px;
  }

  .page-products .lib-side-link:hover,
  .page-products .lib-side-link:focus-visible {
    border-left-color: var(--cyan);
    border-bottom: 0;
    color: var(--ink);
  }

  .page-products .lib-hero {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    align-items: start;
    column-gap: clamp(24px, 3.4vw, 44px);
  }

  .page-products .lib-overview {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: start;
    gap: clamp(24px, 3.6vw, 48px);
  }

  .page-products .lib-overview-fig {
    margin-top: 4px;
  }

  .page-products .lib-types {
    grid-template-columns: minmax(0, 1fr) 300px;
    column-gap: clamp(24px, 3.6vw, 48px);
    align-items: start;
  }

  .page-products .lib-types-fig {
    position: sticky;
    top: calc(var(--bar-h) + 20px);
    max-width: none;
  }

  .page-products .lib-pack {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: start;
    column-gap: clamp(24px, 3.6vw, 44px);
  }

  .page-products .lib-fmt-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    column-gap: clamp(24px, 3.6vw, 48px);
    align-items: start;
  }

  .page-products .lib-fixed {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr);
    align-items: start;
    column-gap: clamp(24px, 3.6vw, 48px);
  }
}

@media (min-width: 1200px) {
  .page-products .lib-hero .display {
    font-size: clamp(2.6rem, 3.6vw, 3.9rem);
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-products .res-type,
  .page-products .lib-next-link,
  .page-products .lib-side-link,
  .page-products .lib-text-link {
    transition: none;
  }

  .page-products .lib-next-link:hover,
  .page-products .lib-next-link:focus-visible {
    transform: none;
  }
}
<<<END>>>