/* ============================================================
   大屏平台 /products —— 页面专属样式，作用域限定 .page-products
   ============================================================ */

.page-products {
  display: block;
  overflow-x: hidden;
  --edge: var(--surface-border);
  --soft: var(--surface);
  --pill: var(--radius-pill);
}

/* ---------- 面包屑留白 ---------- */
.page-products .page-products__crumb {
  padding-block: clamp(18px, 2.6vw, 30px) 0;
}

/* ---------- 首屏 ---------- */
.page-products .hero {
  position: relative;
  overflow: hidden;
  padding: clamp(26px, 4vw, 54px) 0 clamp(38px, 5.5vw, 74px);
  background:
    radial-gradient(720px 360px at 94% -8%, rgba(230, 169, 60, .2), transparent 66%),
    radial-gradient(560px 320px at 2% 106%, rgba(111, 168, 160, .18), transparent 70%);
}

.page-products .hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--edge), transparent);
  pointer-events: none;
}

.page-products .hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 52px);
  align-items: center;
}

.page-products .hero__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.95rem, 5.4vw, 3.4rem);
  line-height: 1.07;
  letter-spacing: -.03em;
  color: var(--heading);
}

.page-products .hero__lede {
  margin: clamp(16px, 2.2vw, 24px) 0 0;
  max-width: 54ch;
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  line-height: 1.85;
  color: var(--text-muted);
}

.page-products .hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 2.8vw, 30px);
}

.page-products .hero__readouts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 20px;
  margin: clamp(26px, 3.4vw, 38px) 0 0;
  padding-top: clamp(20px, 2.6vw, 28px);
  border-top: 1px solid var(--edge);
}

.page-products .hero__readouts dt {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.page-products .hero__readouts dd {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.08rem, 2.2vw, 1.42rem);
  letter-spacing: -.02em;
  color: var(--heading);
}

.page-products .hero__visual {
  margin: 0;
  padding: clamp(10px, 1.4vw, 16px);
  border-radius: var(--radius-xl);
  border: 1px solid var(--edge);
  background: var(--soft);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.page-products .hero__visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg, rgba(230, 169, 60, .07) 0 1px, transparent 1px 46px),
    repeating-linear-gradient(90deg, rgba(111, 168, 160, .07) 0 1px, transparent 1px 46px);
  pointer-events: none;
}

.page-products .hero__visual img {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  height: auto;
  border-radius: calc(var(--radius-xl) - 12px);
  object-fit: cover;
}

.page-products .hero__visual figcaption {
  position: relative;
  z-index: 1;
  padding: 12px 6px 4px;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .06em;
  color: var(--text-muted);
}

/* ---------- 布局与左侧锚点轨 ---------- */
.page-products .layout-wrap {
  padding-bottom: clamp(40px, 6vw, 80px);
}

.page-products .layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.5vw, 44px);
}

.page-products .rail {
  position: relative;
}

.page-products .rail__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 4px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-products .rail__list::-webkit-scrollbar {
  display: none;
}

.page-products .rail__link {
  display: block;
  padding: 8px 14px;
  border-radius: var(--pill);
  border: 1px solid var(--edge);
  background: var(--soft);
  color: var(--text-muted);
  font-size: .84rem;
  text-decoration: none;
  white-space: nowrap;
  transition: color .22s var(--ease), border-color .22s var(--ease), background .22s var(--ease);
}

.page-products .rail__link:hover,
.page-products .rail__link:focus-visible {
  color: var(--heading);
  border-color: var(--gold);
}

/* ---------- 章节骨架 ---------- */
.page-products .flow > .sec {
  padding: clamp(34px, 5vw, 58px) 0;
  border-top: 1px solid var(--edge);
  scroll-margin-top: 150px;
}

.page-products .flow > .sec:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-products .sec__head {
  max-width: 68ch;
  margin-bottom: clamp(24px, 3.4vw, 40px);
}

.page-products .sec__head .section-title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.48rem, 3.4vw, 2.25rem);
  line-height: 1.16;
  letter-spacing: -.025em;
  color: var(--heading);
}

.page-products .sec__head .serif-lede {
  margin: 16px 0 0;
  font-family: var(--font-serif);
  font-size: clamp(.98rem, 1.4vw, 1.08rem);
  line-height: 1.9;
  color: var(--text-muted);
}

.page-products .sec__foot {
  margin: clamp(22px, 3vw, 32px) 0 0;
  max-width: 72ch;
  font-size: .95rem;
  line-height: 1.8;
  color: var(--text-muted);
}

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

.page-products .sec__foot a:hover {
  color: var(--gold);
}

/* ---------- 工作方式 ---------- */
.page-products .how__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2vw, 20px);
}

.page-products .plate {
  position: relative;
  padding: clamp(18px, 2.2vw, 26px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--edge);
  background: var(--soft);
  box-shadow: var(--shadow-card);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}

@media (hover: hover) {
  .page-products .plate:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lift);
  }
}

.page-products .plate__no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--ink-700);
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: .82rem;
  font-weight: 700;
}

.page-products .plate__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: 1.06rem;
  letter-spacing: -.015em;
  color: var(--heading);
}

.page-products .plate__text {
  margin: 10px 0 0;
  font-size: .94rem;
  line-height: 1.78;
  color: var(--text-muted);
}

.page-products .how__stats {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 2.4vw, 26px);
  margin-top: clamp(24px, 3.2vw, 36px);
  padding-top: clamp(20px, 2.6vw, 28px);
  border-top: 1px dashed var(--edge);
}

.page-products .stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-products .stat__num {
  font-family: var(--font-mono);
  font-size: clamp(1.7rem, 4vw, 2.4rem);
  letter-spacing: -.02em;
  color: var(--gold);
  line-height: 1;
}

.page-products .stat__unit {
  font-size: .84rem;
  color: var(--heading);
}

.page-products .stat__note {
  margin: 6px 0 0;
  font-size: .86rem;
  line-height: 1.7;
  color: var(--text-muted);
}

/* ---------- 设备适配 ---------- */
.page-products .dev-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2vw, 22px);
}

.page-products .dev-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(20px, 2.4vw, 26px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--edge);
  background: var(--soft);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
}

.page-products .dev-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
  background: var(--dev-accent, var(--gold));
}

.page-products .dev-card--screen { --dev-accent: var(--gold); }
.page-products .dev-card--desk { --dev-accent: var(--mist); }
.page-products .dev-card--tablet { --dev-accent: var(--cinnabar); }
.page-products .dev-card--phone { --dev-accent: var(--jade); }

@media (hover: hover) {
  .page-products .dev-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lift);
    border-color: var(--dev-accent, var(--gold));
  }
}

.page-products .dev-card:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.page-products .dev-card__no {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .14em;
  color: var(--dev-accent, var(--gold));
}

.page-products .dev-card__name {
  margin: 2px 0 0;
  font-family: var(--font-display);
  font-size: 1.12rem;
  letter-spacing: -.015em;
  color: var(--heading);
}

.page-products .dev-card__text {
  margin: 0;
  font-size: .93rem;
  line-height: 1.78;
  color: var(--text-muted);
}

.page-products .dev-card__spec {
  margin: auto 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--edge);
  display: grid;
  gap: 8px;
}

.page-products .dev-card__spec > div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.page-products .dev-card__spec dt {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .08em;
  color: var(--text-muted);
}

.page-products .dev-card__spec dd {
  margin: 0;
  font-size: .82rem;
  color: var(--heading);
  text-align: right;
}

.page-products .dev-figure {
  margin: clamp(24px, 3.4vw, 38px) 0 0;
  padding: clamp(10px, 1.4vw, 14px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--edge);
  background: var(--soft);
  overflow: hidden;
}

.page-products .dev-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: calc(var(--radius-lg) - 8px);
  object-fit: cover;
}

.page-products .dev-figure figcaption {
  padding: 12px 6px 2px;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .05em;
  color: var(--text-muted);
}

/* ---------- 栏目分类 ---------- */
.page-products .tree {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(12px, 1.8vw, 18px);
  counter-reset: tree;
}

.page-products .tree__node {
  padding: clamp(16px, 2vw, 22px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--edge);
  background: var(--soft);
}

.page-products .tree__head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
}

.page-products .tree__no {
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .12em;
  color: var(--gold);
}

.page-products .tree__name {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.04rem;
  letter-spacing: -.01em;
  color: var(--heading);
}

.page-products .tree__count {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .04em;
  color: var(--text-muted);
}

.page-products .tree__subs {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-products .tree__subs li {
  padding: 5px 12px;
  border-radius: var(--pill);
  border: 1px solid var(--edge);
  background: var(--surface-2);
  font-size: .82rem;
  color: var(--text-muted);
}

/* ---------- 日常访问对照 ---------- */
.page-products .verse {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2vw, 20px);
}

.page-products .verse__col {
  padding: clamp(20px, 2.6vw, 28px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--edge);
  background: var(--soft);
}

.page-products .verse__col--now {
  border-color: rgba(230, 169, 60, .45);
  background:
    linear-gradient(160deg, rgba(230, 169, 60, .16), transparent 62%),
    var(--soft);
}

.page-products .verse__tag {
  display: inline-block;
  margin: 0 0 12px;
  padding: 5px 12px;
  border-radius: var(--pill);
  border: 1px solid var(--edge);
  background: var(--surface-2);
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .1em;
  color: var(--heading);
}

.page-products .verse__col--now .verse__tag {
  background: var(--gold);
  border-color: transparent;
  color: var(--ink-900);
}

.page-products .verse__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.08rem;
  letter-spacing: -.015em;
  color: var(--heading);
}

.page-products .verse__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .verse__list li {
  position: relative;
  padding-left: 22px;
  font-size: .94rem;
  line-height: 1.74;
  color: var(--text-muted);
}

.page-products .verse__list li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: .62em;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--edge);
}

.page-products .verse__col--now .verse__list li::before {
  background: var(--gold);
}

/* ---------- 反馈入口 ---------- */
.page-products .stair {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2vw, 20px);
}

.page-products .stair__step {
  padding: clamp(18px, 2.2vw, 24px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--edge);
  background: var(--soft);
}

.page-products .stair__no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--gold);
  color: var(--ink-900);
  font-family: var(--font-mono);
  font-size: .82rem;
  font-weight: 700;
}

.page-products .stair__title {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--heading);
}

.page-products .stair__text {
  margin: 8px 0 0;
  font-size: .91rem;
  line-height: 1.74;
  color: var(--text-muted);
}

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

.page-products .feedback__cta {
  margin-top: clamp(20px, 2.8vw, 30px);
  padding: clamp(20px, 2.6vw, 28px);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(230, 169, 60, .42);
  background:
    linear-gradient(140deg, rgba(230, 169, 60, .16), transparent 60%),
    var(--soft);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.page-products .feedback__cta p {
  margin: 0;
  max-width: 54ch;
  font-size: .96rem;
  line-height: 1.8;
  color: var(--text-muted);
}

/* ---------- 场景与节奏 ---------- */
.page-products .scenes {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2vw, 20px);
}

.page-products .scene {
  padding: clamp(18px, 2.2vw, 24px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--edge);
  background: var(--soft);
}

.page-products .scene__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.02rem;
  letter-spacing: -.01em;
  color: var(--heading);
}

.page-products .scene__text {
  margin: 10px 0 0;
  font-size: .92rem;
  line-height: 1.76;
  color: var(--text-muted);
}

.page-products .timeline {
  list-style: none;
  margin: clamp(28px, 3.6vw, 42px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 2.4vw, 26px);
}

.page-products .timeline__item {
  position: relative;
  padding-top: 22px;
  border-top: 2px solid var(--edge);
}

.page-products .timeline__item::before {
  content: "";
  position: absolute;
  top: -7px;
  left: 0;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--gold);
}

.page-products .timeline__ver {
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .1em;
  color: var(--accent-text);
}

.page-products .timeline__title {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--heading);
}

.page-products .timeline__text {
  margin: 8px 0 0;
  font-size: .89rem;
  line-height: 1.72;
  color: var(--text-muted);
}

/* ---------- 断点 ---------- */
@media (min-width: 560px) {
  .page-products .hero__readouts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 640px) {
  .page-products .dev-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 700px) {
  .page-products .stair {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .how__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-products .how__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-products .scenes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 780px) {
  .page-products .verse {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .tree {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-products .timeline {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 940px) {
  .page-products .hero__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
  }
}

@media (min-width: 1024px) {
  .page-products .layout {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: clamp(32px, 4vw, 56px);
    align-items: start;
  }
  .page-products .rail {
    position: sticky;
    top: 128px;
  }
  .page-products .rail__list {
    flex-direction: column;
    overflow: visible;
    gap: 10px;
    padding: 0;
  }
  .page-products .rail__link {
    white-space: normal;
    font-size: .86rem;
  }
}

@media (min-width: 1100px) {
  .page-products .stair {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1180px) {
  .page-products .dev-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-products .tree {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .page-products .timeline {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .plate,
  .page-products .dev-card,
  .page-products .rail__link {
    transition: none;
  }
  .page-products .plate:hover,
  .page-products .dev-card:hover {
    transform: none;
  }
}