.page-products {
  --pp-glow: 0 0 0 3px rgba(53, 224, 214, 0.22);
  --pp-body: #c6d4e0;
  --pp-hair: 1px solid var(--line);
  padding-top: var(--nav-h);
  background: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  overflow-wrap: break-word;
}

/* 面包屑 */
.page-products .crumbs {
  padding-top: clamp(1.25rem, 3vw, 2rem);
  margin-bottom: 0.25rem;
}

.page-products .crumbs ol {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--muted);
}

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

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

.page-products .crumbs li + li::before {
  content: "▸";
  margin-right: 0.4rem;
  color: var(--line);
}

/* 首屏 */
.pp-hero {
  padding: clamp(1.5rem, 4vw, 3rem) 0 clamp(2rem, 5vw, 3.5rem);
}

.pp-hero-grid {
  display: grid;
  gap: clamp(1.5rem, 3.5vw, 2.5rem);
  align-items: start;
}

.pp-hero h1 {
  margin: 0.7rem 0 1rem;
  font-size: clamp(2rem, 7vw, 3.5rem);
  line-height: 1.12;
  letter-spacing: -0.015em;
  font-weight: 900;
  max-width: 20ch;
}

.pp-lead {
  margin: 0 0 1.6rem;
  max-width: 48ch;
  font-size: clamp(1rem, 1.5vw, 1.08rem);
  line-height: 1.9;
  color: var(--pp-body);
}

.pp-hero-media {
  margin: 0;
}

.pp-hero-media img {
  display: block;
  width: 100%;
  height: auto;
}

/* 检索台 */
.pp-desk {
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
  padding: clamp(1.15rem, 3vw, 1.85rem);
  display: grid;
  gap: 1.1rem;
  background: linear-gradient(158deg, var(--ink-2), var(--ink-3));
  box-shadow: var(--hard);
}

.pp-desk-head {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  justify-content: space-between;
  align-items: baseline;
}

.pp-desk-head .meta {
  margin: 0;
  color: var(--gold);
}

.pp-desk-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.7;
}

.pp-field {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1rem;
  border: 2px solid var(--line);
  background: var(--ink-3);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.pp-field:hover {
  border-color: var(--cyan);
  box-shadow: var(--pp-glow);
}

.pp-field-value {
  font-size: clamp(1.15rem, 3.4vw, 1.55rem);
  color: var(--gold);
  letter-spacing: 0.02em;
}

.pp-caret {
  width: 2px;
  height: 1.3em;
  background: var(--cyan);
  animation: pp-blink 1.1s steps(2, start) infinite;
}

@keyframes pp-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.pp-field-hint {
  margin-left: auto;
  color: var(--muted);
  font-size: 0.76rem;
  letter-spacing: 0.04em;
}

.pp-ways {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.pp-ways li {
  display: grid;
  gap: 0.3rem;
  padding: 0.9rem 1rem;
  background: var(--ink-2);
}

.pp-ways a {
  color: var(--cyan);
  font-weight: 700;
  font-size: 0.94rem;
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.pp-ways a:hover,
.pp-ways a:focus-visible {
  color: var(--gold-soft);
}

.pp-ways span {
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.7;
}

.pp-desk > .meta {
  margin: 0;
}

/* 通用章节 */
.page-products .pp-section {
  padding: clamp(2.5rem, 6vw, 4.25rem) 0;
  border-top: var(--pp-hair);
}

.page-products .pp-section .section-head {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.5rem 1rem;
  align-items: baseline;
  margin-bottom: 1.4rem;
}

.page-products .pp-section h2 {
  margin: 0;
  font-size: clamp(1.45rem, 3.4vw, 2.15rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
  font-weight: 800;
}

.page-products .pp-section h3 {
  margin: 0 0 0.6rem;
  font-size: 1.02rem;
  line-height: 1.5;
  font-weight: 700;
}

.page-products .prose {
  max-width: 68ch;
}

.page-products .prose p {
  margin: 0 0 1.1rem;
  line-height: 1.9;
  color: var(--pp-body);
}

.pp-intro {
  max-width: 68ch;
  margin: 0 0 1.6rem;
  color: var(--pp-body);
  line-height: 1.9;
}

.pp-note {
  max-width: 68ch;
  margin: 1.4rem 0 0;
  padding-left: 1rem;
  border-left: 3px solid var(--gold);
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.85;
}

.pp-fig {
  margin: 1.6rem 0 0;
}

.pp-fig img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: var(--bd);
  box-shadow: var(--hard);
}

.pp-fig .media__caption {
  margin-top: 0.7rem;
  color: var(--muted);
  font-size: 0.76rem;
  letter-spacing: 0.03em;
  line-height: 1.7;
}

/* 左侧刻度栏 */
.pp-rail-ver {
  margin: 0.35rem 0 0.4rem;
  font-size: clamp(1.9rem, 5vw, 2.6rem);
  line-height: 1;
}

.page-products .rail .meta {
  margin: 0;
}

.pp-main {
  min-width: 0;
}

/* 版本号两级结构说明 */
.pp-spec {
  display: grid;
  gap: 1px;
  margin: 1.6rem 0 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.pp-spec > div {
  display: grid;
  gap: 0.4rem;
  padding: 1rem 1.1rem;
  background: var(--ink-2);
}

.pp-spec dt {
  color: var(--gold);
  font-size: 0.76rem;
  letter-spacing: 0.09em;
}

.pp-spec dd {
  margin: 0;
  color: var(--pp-body);
  font-size: 0.88rem;
  line-height: 1.85;
}

/* 版本号直查 */
.pp-lookup-grid {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  align-items: start;
}

.pp-lookup-copy p {
  margin: 0 0 1.05rem;
  color: var(--pp-body);
  line-height: 1.9;
}

.pp-steps {
  display: grid;
  gap: 0.7rem;
  margin: 1.4rem 0 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.pp-steps li {
  display: grid;
  grid-template-columns: 2.4rem 1fr;
  align-items: baseline;
  gap: 1rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px dashed var(--line);
  color: var(--pp-body);
  font-size: 0.88rem;
  line-height: 1.8;
}

.pp-steps .mono {
  color: var(--cyan);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
}

/* 栏目入口四分区 */
.pp-zone-grid {
  display: grid;
  gap: 1rem;
}

.pp-zone {
  padding: 1.15rem 1.2rem 1.3rem;
  background: var(--ink-2);
  border: var(--bd);
  box-shadow: var(--hard);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.pp-zone--lead {
  background: linear-gradient(152deg, var(--ink-2) 40%, rgba(224, 180, 92, 0.09));
  border-color: var(--gold);
}

.pp-zone p {
  margin: 0;
  color: var(--pp-body);
  font-size: 0.88rem;
  line-height: 1.85;
}

.pp-zone-head {
  margin-bottom: 0.85rem;
}

.pp-zone-meta {
  margin-top: 0.9rem;
  padding-top: 0.8rem;
  border-top: 1px dashed var(--line);
}

.pp-zone-meta a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 224, 214, 0.4);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.pp-zone-meta a:hover,
.pp-zone-meta a:focus-visible {
  color: var(--gold-soft);
  border-bottom-color: var(--gold-soft);
}

/* 归档索引 */
.pp-arch {
  display: grid;
  gap: 0.45rem;
  margin: 1.6rem 0 0;
  padding: 0;
  list-style: none;
}

.pp-arch li {
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
  padding: 0.65rem 0.9rem;
  border: 1px solid var(--line);
  border-left: 3px solid var(--archive);
  background: var(--ink-2);
  color: var(--pp-body);
  font-size: 0.85rem;
  line-height: 1.7;
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.pp-arch li:nth-child(n + 6) {
  border-left-color: rgba(69, 185, 140, 0.45);
}

.pp-arch li:hover {
  border-color: var(--cyan);
  transform: translateX(2px);
}

.pp-arch-no {
  flex: none;
  color: var(--archive);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
}

/* 安卓端轻量阅读 */
.pp-mobile-grid {
  display: grid;
  gap: 1px;
  margin-bottom: 1.6rem;
  background: var(--line);
  border: 1px solid var(--line);
}

.pp-mobile-stat {
  padding: 1.1rem 1.15rem;
  background: var(--ink-2);
}

.pp-big {
  margin: 0 0 0.4rem;
  font-size: clamp(1.75rem, 5.5vw, 2.35rem);
  line-height: 1;
  color: var(--cyan);
  letter-spacing: -0.01em;
}

.pp-mobile-stat:nth-child(2) .pp-big {
  color: var(--gold);
}

.pp-mobile-stat:nth-child(3) .pp-big {
  color: var(--amber);
}

.pp-unit {
  margin-left: 0.28rem;
  font-size: 0.42em;
  letter-spacing: 0.06em;
}

.pp-mobile-stat .meta {
  margin: 0;
}

.pp-mobile-prose {
  max-width: 68ch;
}

.pp-plain {
  margin-top: 1.6rem;
  padding: clamp(1.1rem, 3vw, 1.6rem);
  border: var(--bd);
  border-left: 4px solid var(--cyan);
  background: var(--ink-2);
}

.pp-plain-head {
  margin: 0 0 0.6rem;
  color: var(--cyan);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
}

.pp-plain p {
  margin: 0 0 1.1rem;
  max-width: 62ch;
  color: var(--pp-body);
  font-size: 0.88rem;
  line-height: 1.85;
}

/* 版本演进 */
.pp-fig--evo img {
  object-fit: contain;
  background: var(--ink-2);
}

.pp-evo {
  margin: 1.8rem 0 0;
  padding: 0;
  list-style: none;
  border-top: var(--pp-hair);
  background-image: repeating-linear-gradient(90deg, rgba(36, 69, 95, 0.5) 0 1px, transparent 1px 32px);
}

.pp-evo > li {
  border-bottom: var(--pp-hair);
}

.pp-evo-item summary {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.9rem 0.35rem;
  cursor: pointer;
  list-style: none;
  transition: background-color var(--dur) var(--ease);
}

.pp-evo-item summary::-webkit-details-marker {
  display: none;
}

.pp-evo-item summary::marker {
  content: "";
}

.pp-evo-item summary:hover {
  background-color: rgba(53, 224, 214, 0.06);
}

.pp-evo-item summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.pp-evo-no {
  flex: none;
  width: 2.1rem;
  color: var(--muted);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
}

.pp-evo-topic {
  min-width: 0;
  color: var(--paper);
  font-size: 0.94rem;
  font-weight: 700;
  line-height: 1.6;
}

.pp-evo-toggle {
  position: relative;
  flex: none;
  width: 13px;
  height: 13px;
  margin-left: auto;
}

.pp-evo-toggle::before,
.pp-evo-toggle::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform var(--dur) var(--ease);
}

.pp-evo-toggle::before {
  left: 0;
  right: 0;
  top: 50%;
  height: 2px;
  margin-top: -1px;
}

.pp-evo-toggle::after {
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  margin-left: -1px;
}

.pp-evo-item[open] .pp-evo-toggle::after {
  transform: scaleY(0);
}

.pp-evo-body {
  padding: 0 0.35rem 1rem 2.95rem;
}

.pp-evo-body p {
  margin: 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.85;
}

/* 收尾 */
.page-products .pp-cta {
  border-top: 2px solid var(--line);
}

.pp-cta-box {
  padding: clamp(1.4rem, 4vw, 2.5rem);
  border: var(--bd);
  background: linear-gradient(140deg, var(--ink-2) 30%, rgba(53, 224, 214, 0.08));
  box-shadow: var(--hard);
}

.pp-cta-box h2 {
  margin: 0 0 0.9rem;
  font-size: clamp(1.35rem, 3.4vw, 1.9rem);
  line-height: 1.3;
  font-weight: 800;
}

.pp-cta-box p {
  margin: 0 0 1.4rem;
  max-width: 62ch;
  color: var(--pp-body);
  line-height: 1.9;
}

/* 响应式 */
@media (min-width: 640px) {
  .pp-ways {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .pp-spec {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pp-mobile-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .pp-zone-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pp-arch {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .pp-hero-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .pp-lookup-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }

  .pp-mobile-prose {
    column-count: 2;
    column-gap: 2.5rem;
  }

  .pp-mobile-prose p {
    break-inside: avoid;
  }
}

@media (min-width: 1080px) {
  .pp-zone-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .pp-evo-no {
    width: 2.6rem;
  }

  .pp-evo-body {
    padding-left: 3.45rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .pp-caret {
    animation: none;
  }

  .pp-zone,
  .pp-arch li,
  .pp-evo-toggle::before,
  .pp-evo-toggle::after,
  .pp-field {
    transition: none;
  }

  .pp-arch li:hover {
    transform: none;
  }
}