.page-products {
  --pl-gap: clamp(1.5rem, 4vw, 3.25rem);
  --pl-rail-w: 14.5rem;
}

/* ---------- 面包屑 ---------- */
.page-products .crumbs {
  padding-block: 1.4rem 0;
}

/* ---------- 首屏 ---------- */
.page-products .pl-hero {
  padding-block: clamp(1.8rem, 5vw, 3.6rem) clamp(2.2rem, 6vw, 4.2rem);
  border-bottom: 1px solid var(--line-soft);
}

.page-products .pl-hero__kicker {
  margin: 0 0 1.1rem;
  font-size: 0.74rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-products .pl-hero__title {
  margin: 0;
  max-width: 15em;
  font-size: clamp(2.05rem, 6vw, 4.2rem);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.04em;
  color: var(--paper);
}

.page-products .pl-hero__lead {
  margin: clamp(1.15rem, 3vw, 1.9rem) 0 0;
  max-width: 58ch;
  font-size: clamp(0.97rem, 1.4vw, 1.08rem);
  line-height: 1.9;
  color: var(--muted);
}

.page-products .pl-hero__facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(1.8rem, 4.5vw, 2.8rem) 0 0;
  padding: 0;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--r);
  overflow: hidden;
}

.page-products .pl-hero__facts > div {
  background: var(--surface);
  padding: 0.95rem 0.9rem 1.1rem;
}

.page-products .pl-hero__facts dt {
  margin-bottom: 0.45rem;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  line-height: 1.5;
  color: var(--muted);
}

.page-products .pl-hero__facts dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(1.5rem, 4.4vw, 2.05rem);
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--amber);
}

/* ---------- 双栏主体 ---------- */
.page-products .pl-body {
  display: grid;
  gap: var(--pl-gap);
  padding-block: clamp(2rem, 5vw, 3.6rem) clamp(3rem, 8vw, 6rem);
}

.page-products .pl-rail {
  display: grid;
  gap: 1.9rem;
  align-content: start;
  min-width: 0;
}

.page-products .pl-index__label {
  margin: 0 0 0.85rem;
  font-size: 0.71rem;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.page-products .pl-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.05rem;
  border-left: 1px solid var(--line);
}

.page-products .pl-index__list a {
  display: block;
  margin-left: -1px;
  padding: 0.5rem 0 0.5rem 0.9rem;
  border-left: 2px solid transparent;
  font-size: 0.85rem;
  line-height: 1.55;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-products .pl-index__list a:hover,
.page-products .pl-index__list a:focus-visible {
  color: var(--paper);
  border-left-color: var(--cyan);
  outline: none;
}

.page-products .pl-scale {
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.page-products .pl-scale__label {
  margin: 0 0 0.7rem;
  font-size: 0.71rem;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.page-products .pl-scale__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.45rem 0;
  border-bottom: 1px dashed var(--line-soft);
  font-size: 0.76rem;
  color: var(--muted);
}

.page-products .pl-scale__row b {
  color: var(--amber);
  font-weight: 600;
  white-space: nowrap;
}

.page-products .pl-main {
  display: grid;
  gap: clamp(2.4rem, 6vw, 4.4rem);
  min-width: 0;
}

/* ---------- 章节通用 ---------- */
.page-products .pl-sec {
  scroll-margin-top: 6.5rem;
}

.page-products .pl-sec__kicker {
  margin: 0 0 0.7rem;
  font-size: 0.71rem;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.page-products .pl-sec .section-head__note {
  max-width: 56ch;
}

/* ---------- 图片 ---------- */
.page-products .pl-figure {
  margin: clamp(1.4rem, 3.5vw, 2rem) 0 0;
}

.page-products .pl-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--r);
}

.page-products .pl-figure--tight {
  margin-top: clamp(1.2rem, 3vw, 1.8rem);
}

.page-products .pl-figure__cap {
  display: block;
  margin-top: 0.6rem;
  font-size: 0.71rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}

/* ---------- 四条产品线 ---------- */
.page-products .pl-lines {
  list-style: none;
  margin: clamp(1.6rem, 4vw, 2.4rem) 0 0;
  padding: 0;
}

.page-products .pl-line {
  display: grid;
  gap: 0.75rem;
  padding-block: clamp(1.3rem, 3vw, 1.9rem);
  border-top: 1px solid var(--line);
}

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

.page-products .pl-line__num {
  font-size: clamp(1rem, 2.2vw, 1.3rem);
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--amber);
}

.page-products .pl-line h3 {
  margin: 0 0 0.45rem;
  font-size: clamp(1.1rem, 2.1vw, 1.35rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-products .pl-line p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-products .pl-line__points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.35rem;
  align-content: start;
}

.page-products .pl-line__points li {
  position: relative;
  padding-left: 0.95rem;
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-products .pl-line__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--cyan);
}

/* ---------- 安卓版模块 ---------- */
.page-products .pl-android {
  display: grid;
  gap: clamp(1.4rem, 3.5vw, 2.4rem);
  margin-top: clamp(1.5rem, 4vw, 2.2rem);
}

.page-products .pl-android__shot {
  margin: 0;
}

.page-products .pl-android__shot img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 30rem;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--r);
}

.page-products .pl-mods {
  display: grid;
  gap: 0.6rem;
  align-content: start;
}

.page-products .pl-mod {
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: var(--surface);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-products .pl-mod[open] {
  background: var(--raise);
  border-color: rgba(85, 230, 210, 0.34);
}

.page-products .pl-mod summary {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 0.85rem;
  padding: 0.9rem 1rem;
  cursor: pointer;
  list-style: none;
}

.page-products .pl-mod summary::-webkit-details-marker {
  display: none;
}

.page-products .pl-mod summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 1;
  color: var(--cyan);
}

.page-products .pl-mod[open] summary::after {
  content: "−";
}

.page-products .pl-mod summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
  border-radius: var(--r);
}

.page-products .pl-mod__name {
  font-size: 0.97rem;
  font-weight: 700;
  color: var(--paper);
}

.page-products .pl-mod__tag {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-products .pl-mod p {
  margin: 0;
  padding: 0 1rem 1rem;
  font-size: 0.86rem;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 使用路径 ---------- */
.page-products .pl-path {
  list-style: none;
  margin: clamp(1.5rem, 4vw, 2.2rem) 0 0;
  padding: 0;
  margin-left: 0.55rem;
}

.page-products .pl-path__step {
  position: relative;
  margin-left: 0;
  padding: 0.1rem 0 1.55rem 1.9rem;
  border-left: 1px solid var(--line);
}

.page-products .pl-path__step:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-products .pl-path__step::before {
  content: "";
  position: absolute;
  left: -6px;
  top: 0.5rem;
  width: 11px;
  height: 11px;
  box-sizing: border-box;
  border-radius: 50%;
  background: var(--ink);
  border: 2px solid var(--cyan);
}

.page-products .pl-path__step h3 {
  margin: 0 0 0.3rem;
  font-size: 0.99rem;
  font-weight: 700;
  color: var(--paper);
}

.page-products .pl-path__step p {
  margin: 0;
  max-width: 54ch;
  font-size: 0.87rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-products .pl-path__step a,
.page-products .pl-fit__item a,
.page-products .pl-entry__foot a {
  color: var(--cyan);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

/* ---------- 更新节奏 ---------- */
.page-products .pl-beats {
  list-style: none;
  display: grid;
  gap: 1px;
  margin: clamp(1.5rem, 4vw, 2.2rem) 0 0;
  padding: 0;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--r);
  overflow: hidden;
}

.page-products .pl-beat {
  background: var(--surface);
  padding: 1.1rem 1.05rem 1.25rem;
}

.page-products .pl-beat__tag {
  display: inline-block;
  margin-bottom: 0.7rem;
  padding: 0.12rem 0.55rem;
  border: 1px solid rgba(242, 184, 75, 0.36);
  border-radius: 999px;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--amber);
}

.page-products .pl-beat h3 {
  margin: 0 0 0.35rem;
  font-size: 0.96rem;
  font-weight: 700;
  color: var(--paper);
}

.page-products .pl-beat p {
  margin: 0;
  font-size: 0.83rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-products .pl-vernote {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.7rem;
  margin: 1.15rem 0 0;
  font-size: 0.8rem;
  line-height: 1.7;
  color: var(--muted);
}

.page-products .pl-vernote span:last-child {
  flex: 1 1 15rem;
  min-width: 0;
}

/* ---------- 适用场景 ---------- */
.page-products .pl-fit {
  display: grid;
  gap: 0.85rem;
  margin-top: clamp(1.5rem, 4vw, 2.2rem);
}

.page-products .pl-fit__item {
  padding: 1.15rem 1.1rem 1.3rem;
}

.page-products .pl-fit__item h3 {
  margin: 0.7rem 0 0.4rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--paper);
}

.page-products .pl-fit__item p {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 入口 ---------- */
.page-products .pl-entry {
  display: grid;
  gap: 0.9rem;
  margin-top: clamp(1.5rem, 4vw, 2.2rem);
}

.page-products .pl-entry__card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: var(--surface);
  color: inherit;
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease),
    transform var(--dur) var(--ease);
}

.page-products .pl-entry__card:hover,
.page-products .pl-entry__card:focus-visible {
  border-color: rgba(85, 230, 210, 0.5);
  background: var(--glass);
  transform: translateY(-2px);
  outline: none;
}

.page-products .pl-entry__card:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-products .pl-entry__fig {
  margin: 0;
  overflow: hidden;
}

.page-products .pl-entry__fig img {
  display: block;
  width: 100%;
  height: 11rem;
  object-fit: cover;
}

.page-products .pl-entry__body {
  padding: 1rem 1.05rem 1.2rem;
}

.page-products .pl-entry__tag {
  margin: 0 0 0.5rem;
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.page-products .pl-entry__body h3 {
  margin: 0 0 0.45rem;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--paper);
}

.page-products .pl-entry__body p {
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-products .pl-entry__more {
  display: inline-block;
  margin-top: 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-products .pl-entry__foot {
  margin: 1.1rem 0 0;
  font-size: 0.83rem;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 平板 ---------- */
@media (min-width: 620px) {
  .page-products .pl-hero__facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-products .pl-entry__fig img {
    height: 9.5rem;
  }
}

@media (min-width: 780px) {
  .page-products .pl-line {
    grid-template-columns: 3.2rem minmax(0, 1.15fr) minmax(0, 1fr);
    column-gap: clamp(1rem, 2.5vw, 2rem);
    align-items: start;
  }

  .page-products .pl-line:nth-child(even) {
    padding-inline-start: clamp(0.5rem, 3vw, 2.6rem);
  }

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

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

  .page-products .pl-fit__item--wide {
    grid-column: 1 / -1;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 960px) {
  .page-products .pl-body {
    grid-template-columns: var(--pl-rail-w) minmax(0, 1fr);
  }

  .page-products .pl-rail {
    position: sticky;
    top: 6.6rem;
  }

  .page-products .pl-android {
    grid-template-columns: minmax(0, 0.68fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-products .pl-android__shot {
    position: sticky;
    top: 6.6rem;
  }

  .page-products .pl-fit {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-products .pl-fit__item--wide {
    grid-column: span 6;
  }

  .page-products .pl-fit > .pl-fit__item:not(.pl-fit__item--wide) {
    grid-column: span 3;
  }

  .page-products .pl-entry__fig img {
    height: 12rem;
  }
}

@media (min-width: 1200px) {
  .page-products {
    --pl-rail-w: 16rem;
  }
}