.page-products {
  --rail-w: 224px;
  background: var(--ink-900);
  color: var(--paper-050);
}

/* ---------- 首屏 ---------- */
.page-products .prod-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(14px, 2.4vw, 26px) 0 clamp(34px, 5vw, 62px);
  border-bottom: 2px solid var(--line-600);
  background:
    radial-gradient(circle at 84% 10%, rgba(18, 224, 232, 0.14), transparent 56%),
    linear-gradient(162deg, var(--ink-900) 0%, var(--ink-800) 100%);
}

.page-products .prod-hero::after {
  content: "";
  position: absolute;
  top: -34%;
  right: -14%;
  width: 46vw;
  height: 46vw;
  background: linear-gradient(135deg, rgba(255, 107, 26, 0.2), transparent 62%);
  transform: rotate(24deg);
  pointer-events: none;
}

.page-products .prod-hero .container {
  position: relative;
  z-index: 1;
}

.page-products .prod-hero__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: end;
  gap: clamp(22px, 3.4vw, 44px);
  margin-top: clamp(18px, 3vw, 34px);
}

.page-products .prod-h1 {
  margin: 10px 0 0;
  font-size: clamp(2.25rem, 7.2vw, 4.4rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  max-width: 30ch;
}

.page-products .prod-hero__lede {
  margin: clamp(14px, 2vw, 20px) 0 0;
  max-width: 40rem;
  font-size: var(--fs-md);
  line-height: 1.8;
  color: rgba(244, 247, 251, 0.82);
}

.page-products .prod-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(18px, 2.6vw, 26px);
}

.page-products .prod-hero__board {
  position: relative;
  border: 2px solid var(--line-600);
  background: linear-gradient(152deg, var(--ink-800), var(--teal-850));
  box-shadow: var(--shadow-hard);
  padding: 20px 16px 16px;
}

.page-products .prod-hero__board::before {
  content: "";
  position: absolute;
  left: -2px;
  right: -2px;
  top: -2px;
  height: 5px;
  background: linear-gradient(90deg, var(--cyan-500) 0 62%, var(--green-400) 62% 100%);
}

.page-products .prod-hero__board-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.14em;
  color: var(--cyan-500);
}

.page-products .prod-stat-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px;
}

.page-products .prod-stat-list li {
  padding: 10px 8px 10px 12px;
  border-left: 2px solid var(--line-600);
  background: rgba(6, 20, 35, 0.42);
}

.page-products .prod-stat__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 4vw, 2.15rem);
  font-weight: 700;
  line-height: 1;
  color: var(--green-400);
  font-variant-numeric: tabular-nums;
}

.page-products .prod-stat__label {
  display: block;
  margin-top: 6px;
  font-size: var(--fs-xs);
  letter-spacing: 0.04em;
  color: var(--gray-400);
}

.page-products .prod-hero__board-note {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  line-height: 1.7;
  color: var(--gray-400);
}

/* ---------- 主体骨架 ---------- */
.page-products .prod-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 40px);
  padding-top: clamp(28px, 4.4vw, 56px);
  padding-bottom: clamp(48px, 7vw, 88px);
}

.page-products .prod-rail {
  border: 2px solid var(--line-600);
  background: var(--ink-800);
  padding: 14px;
}

.page-products .prod-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.18em;
  color: var(--gray-400);
}

.page-products .prod-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-products .prod-rail__link {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 6px 8px;
  border-left: 3px solid transparent;
  color: var(--paper-050);
  font-size: var(--fs-sm);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-products .prod-rail__link:hover,
.page-products .prod-rail__link:focus-visible {
  border-left-color: var(--cyan-500);
  background: rgba(18, 224, 232, 0.08);
  color: var(--cyan-500);
}

.page-products .prod-rail__idx {
  min-width: 2.2ch;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--orange-500);
}

.page-products .prod-rail__note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line-600);
  font-size: var(--fs-xs);
  line-height: 1.75;
  color: var(--gray-400);
}

.page-products .prod-flow {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  min-width: 0;
}

.page-products .prod-module {
  min-width: 0;
  padding-top: clamp(28px, 4vw, 46px);
  scroll-margin-top: calc(var(--header-h) + 18px);
}

.page-products .prod-module:first-child {
  padding-top: 0;
}

.page-products .prod-module + .prod-module {
  margin-top: clamp(28px, 4vw, 46px);
  border-top: 2px solid var(--line-600);
  transition: border-color var(--dur) var(--ease);
}

.page-products .prod-module:target {
  border-top-color: var(--cyan-500);
}

/* ---------- 模块标题 ---------- */
.page-products .prod-module__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: clamp(12px, 1.6vw, 20px);
  row-gap: 8px;
  align-items: start;
  margin-bottom: clamp(18px, 2.6vw, 28px);
}

.page-products .prod-module__num {
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-size: clamp(2.1rem, 5.2vw, 3.2rem);
  font-weight: 700;
  line-height: 0.82;
  letter-spacing: -0.04em;
  color: var(--orange-500);
  font-variant-numeric: tabular-nums;
}

.page-products .prod-module__title {
  margin: 0;
  font-size: var(--fs-xl);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--paper-050);
}

.page-products .prod-module__intro {
  grid-column: 2;
  margin: 0;
  max-width: 46rem;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--gray-400);
}

/* ---------- 四模块地图 ---------- */
.page-products .prod-map {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-products .prod-map__card {
  position: relative;
  overflow: hidden;
  padding: 22px 18px 16px;
  border: 2px solid var(--line-600);
  background: linear-gradient(158deg, var(--ink-800) 0%, var(--ink-900) 78%);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-products .prod-map__card::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, var(--orange-500) 0 50%, transparent 50%);
  opacity: 0.85;
}

.page-products .prod-map__card:hover {
  border-color: var(--cyan-500);
  box-shadow: var(--shadow-hard);
  transform: translateY(-3px);
}

.page-products .prod-map__num {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-lg);
  letter-spacing: -0.06em;
  color: var(--cyan-500);
  font-variant-numeric: tabular-nums;
}

.page-products .prod-map__card h3 {
  margin: 8px 0 8px;
  font-size: var(--fs-md);
  line-height: 1.4;
  color: var(--paper-050);
}

.page-products .prod-map__card p {
  margin: 0 0 10px;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--gray-400);
}

.page-products .prod-map__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  border-bottom: 2px solid transparent;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.1em;
  color: var(--cyan-500);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease);
}

.page-products .prod-map__link::after {
  content: "→";
}

.page-products .prod-map__link:hover,
.page-products .prod-map__link:focus-visible {
  border-bottom-color: var(--cyan-500);
}

/* ---------- 分屏模块 ---------- */
.page-products .prod-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
  gap: clamp(18px, 2.6vw, 32px);
}

.page-products .prod-split__text {
  min-width: 0;
}

/* ---------- 步骤 ---------- */
.page-products .prod-steps {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .prod-step {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 14px 16px;
  border: 2px solid var(--line-600);
  background: var(--ink-800);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-products .prod-step:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 34px;
  bottom: -13px;
  width: 2px;
  height: 12px;
  background: var(--line-600);
  transition: background-color var(--dur) var(--ease);
}

.page-products .prod-step:hover,
.page-products .prod-step:focus-within {
  border-color: var(--cyan-500);
  box-shadow: 6px 6px 0 rgba(18, 224, 232, 0.16);
  transform: translate(-2px, -2px);
}

.page-products .prod-step:hover::after {
  background: var(--cyan-500);
}

.page-products .prod-step__num {
  font-family: var(--font-mono);
  font-size: var(--fs-lg);
  font-weight: 700;
  line-height: 1;
  color: var(--orange-500);
  font-variant-numeric: tabular-nums;
  transition: color var(--dur) var(--ease);
}

.page-products .prod-step:hover .prod-step__num {
  color: var(--cyan-500);
}

.page-products .prod-step__body h3 {
  margin: 0 0 4px;
  font-size: var(--fs-md);
  line-height: 1.4;
  color: var(--paper-050);
}

.page-products .prod-step__body p {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: var(--gray-400);
}

/* ---------- 筛选维度 ---------- */
.page-products .prod-filters {
  margin: 4px 0 16px;
}

.page-products .prod-filters__label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.16em;
  color: var(--gray-400);
}

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

.page-products .prod-filters__list li {
  padding: 7px 13px;
  border: 1px solid var(--line-600);
  background: rgba(18, 224, 232, 0.06);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
  color: var(--cyan-500);
}

/* ---------- 数据事实 ---------- */
.page-products .prod-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 16px 0;
}

.page-products .prod-fact {
  flex: 1 1 140px;
  padding: 12px 14px;
  border: 2px solid var(--line-600);
  border-left: 4px solid var(--green-400);
  background: var(--teal-850);
}

.page-products .prod-fact__num {
  font-family: var(--font-mono);
  font-size: var(--fs-lg);
  font-weight: 700;
  color: var(--green-400);
  font-variant-numeric: tabular-nums;
}

.page-products .prod-fact__label {
  display: block;
  margin-top: 4px;
  font-size: var(--fs-xs);
  line-height: 1.6;
  color: var(--gray-400);
}

/* ---------- 图片框 ---------- */
.page-products .prod-shot {
  margin: 0;
  min-width: 0;
  border: 2px solid var(--line-600);
  background: var(--ink-800);
  box-shadow: var(--shadow-hard);
}

.page-products .prod-shot--wide {
  box-shadow: var(--shadow-lift);
}

.page-products .prod-shot img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .prod-shot figcaption {
  padding: 10px 12px;
  border-top: 1px solid var(--line-600);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  line-height: 1.6;
  letter-spacing: 0.04em;
  color: var(--gray-400);
}

/* ---------- 路径 SVG 与注释 ---------- */
.page-products .prod-path {
  display: block;
  width: 100%;
  max-width: 320px;
  height: auto;
  margin-bottom: 16px;
  color: var(--cyan-500);
}

.page-products .prod-note {
  margin: 14px 0 0;
  padding-left: 12px;
  border-left: 3px solid var(--line-600);
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--gray-400);
}

.page-products .prod-link {
  border-bottom: 2px solid rgba(18, 224, 232, 0.4);
  color: var(--cyan-500);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-products .prod-link:hover,
.page-products .prod-link:focus-visible {
  border-bottom-color: var(--cyan-500);
  color: var(--paper-050);
}

/* ---------- 三端对比 ---------- */
.page-products .prod-devices {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: clamp(16px, 2.4vw, 24px);
}

.page-products .prod-device {
  padding: 16px 16px 18px;
  border: 2px solid var(--line-600);
  border-top: 4px solid var(--cyan-500);
  background: var(--ink-800);
}

.page-products .prod-device:nth-child(2) {
  border-top-color: var(--orange-500);
}

.page-products .prod-device:nth-child(3) {
  border-top-color: var(--green-400);
}

.page-products .prod-device__tag {
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.16em;
  color: var(--cyan-500);
}

.page-products .prod-device h3 {
  margin: 8px 0;
  font-size: var(--fs-md);
  line-height: 1.4;
  color: var(--paper-050);
}

.page-products .prod-device p {
  margin: 0;
  font-size: var(--fs-sm);
  line-height: 1.75;
  color: var(--gray-400);
}

/* ---------- 收尾入口 ---------- */
.page-products .prod-cta {
  position: relative;
  overflow: hidden;
  margin-top: clamp(34px, 5vw, 62px);
  padding: clamp(20px, 3.4vw, 38px);
  border: 2px solid var(--line-600);
  background: linear-gradient(118deg, var(--teal-850) 0%, var(--ink-800) 62%);
}

.page-products .prod-cta::after {
  content: "";
  position: absolute;
  right: -50px;
  bottom: -70px;
  width: 210px;
  height: 210px;
  background: radial-gradient(circle, rgba(255, 107, 26, 0.24), transparent 68%);
  pointer-events: none;
}

.page-products .prod-cta__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.page-products .prod-cta__text h2 {
  margin: 6px 0 8px;
  font-size: var(--fs-xl);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--paper-050);
}

.page-products .prod-cta__text p {
  margin: 0;
  max-width: 34rem;
  font-size: var(--fs-sm);
  line-height: 1.8;
  color: var(--gray-400);
}

.page-products .prod-cta__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-products .prod-cta__links a {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 14px;
  border: 2px solid var(--line-600);
  background: rgba(6, 20, 35, 0.55);
  color: var(--paper-050);
  font-size: var(--fs-sm);
  line-height: 1.5;
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-products .prod-cta__links a:hover,
.page-products .prod-cta__links a:focus-visible {
  border-color: var(--orange-500);
  background: rgba(255, 107, 26, 0.08);
  color: var(--orange-500);
}

/* ---------- 断点 ---------- */
@media (min-width: 700px) {
  .page-products .prod-devices {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-products .prod-map {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-products .prod-map__card--a {
    grid-column: span 7;
  }

  .page-products .prod-map__card--b {
    grid-column: span 5;
    margin-top: 18px;
  }

  .page-products .prod-map__card--c {
    grid-column: span 5;
  }

  .page-products .prod-map__card--d {
    grid-column: span 7;
    margin-top: 18px;
  }
}

@media (min-width: 820px) {
  .page-products .prod-split {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }

  .page-products .prod-split--reverse {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  }

  .page-products .prod-cta__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    align-items: center;
    gap: 28px;
  }
}

@media (min-width: 900px) {
  .page-products .prod-hero__body {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
  }
}

@media (min-width: 1024px) {
  .page-products .prod-shell {
    grid-template-columns: var(--rail-w) minmax(0, 1fr);
    align-items: start;
  }

  .page-products .prod-rail {
    position: sticky;
    top: calc(var(--header-h) + 16px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .prod-map__card,
  .page-products .prod-step,
  .page-products .prod-step::after,
  .page-products .prod-step__num,
  .page-products .prod-module + .prod-module {
    transition: none;
  }

  .page-products .prod-map__card:hover,
  .page-products .prod-step:hover,
  .page-products .prod-step:focus-within {
    transform: none;
  }
}