.page-products {
  --pp-rail: 156px;
  --pp-gap: 44px;
  --pp-shadow: 0 20px 60px rgba(0, 0, 0, 0.38);
}

/* ---------- Hero ---------- */
.page-products .product-hero {
  position: relative;
  padding: clamp(40px, 7vw, 88px) 0 clamp(36px, 5vw, 64px);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-products .product-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(110% 80% at 88% -10%, rgba(53, 242, 214, 0.10), transparent 62%),
    radial-gradient(90% 70% at -6% 104%, rgba(245, 197, 66, 0.08), transparent 58%);
  pointer-events: none;
}

.page-products .product-hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 5vw, 56px);
  align-items: start;
}

.page-products .product-hero__eyebrow {
  margin: 0 0 18px;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--cyan);
  text-transform: uppercase;
}

.page-products .product-hero h1 {
  margin: 0 0 22px;
  font-family: var(--font-display);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.08;
  font-size: clamp(2.1rem, 7.4vw, 4.2rem);
  color: var(--chalk);
  max-width: 18ch;
}

.page-products .product-hero__lead {
  margin: 0 0 30px;
  max-width: 62ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: var(--steel);
}

.page-products .product-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-products .product-hero__side {
  position: relative;
  padding: 24px 22px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(11, 46, 36, 0.72), rgba(5, 13, 10, 0.86));
  overflow: hidden;
}

.page-products .side-diagram {
  position: absolute;
  top: -46px;
  right: -46px;
  width: 190px;
  height: 190px;
  pointer-events: none;
}

.page-products .side-ring {
  position: absolute;
  inset: 0;
  border: 1px solid var(--line-soft);
  border-radius: 50%;
}

.page-products .side-ring--2 { inset: 26px; }
.page-products .side-ring--3 { inset: 54px; border-color: rgba(53, 242, 214, 0.28); }

.page-products .side-dot {
  position: absolute;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px rgba(53, 242, 214, 0.7);
}

.page-products .side-dot--a { top: 22px; right: 96px; }
.page-products .side-dot--b { top: 92px; right: 26px; opacity: 0.75; }
.page-products .side-dot--c { top: 132px; right: 74px; background: var(--amber); box-shadow: 0 0 10px rgba(245, 197, 66, 0.6); }
.page-products .side-dot--d { top: 62px; right: 132px; opacity: 0.5; }

.page-products .side-label {
  position: relative;
  margin: 0 0 20px;
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--steel);
}

.page-products .side-stat {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 14px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--line);
}

.page-products .side-stat:last-of-type {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-products .side-num {
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 700;
  color: var(--amber);
  letter-spacing: -0.02em;
  line-height: 1;
}

.page-products .side-unit {
  font-size: 13px;
  color: var(--steel);
}

.page-products .side-note {
  position: relative;
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--steel);
}

/* ---------- Section shell ---------- */
.page-products .feature-section {
  position: relative;
  padding: clamp(48px, 7vw, 88px) 0 clamp(24px, 4vw, 40px);
}

.page-products .feature-section .section-title {
  color: var(--chalk);
}

/* ---------- Feature timeline list ---------- */
.page-products .feature-list {
  list-style: none;
  margin: clamp(28px, 4vw, 48px) 0 0;
  padding: 0;
  counter-reset: feat;
}

.page-products .feature-item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  padding: clamp(32px, 5vw, 56px) 0;
  border-top: 1px solid var(--line);
}

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

.page-products .feature-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 72px;
  height: 2px;
  background: var(--amber);
}

.page-products .feature-rail {
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-products .feature-num {
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

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

.page-products .feature-title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.22;
  font-size: clamp(1.35rem, 3.4vw, 2rem);
  color: var(--chalk);
}

.page-products .feature-lead {
  margin: 0 0 22px;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--steel);
}

.page-products .feature-points {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-products .feature-points li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--chalk);
}

.page-products .feature-points .dot {
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px rgba(53, 242, 214, 0.55);
}

.page-products .feature-media {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--deep);
  overflow: hidden;
}

.page-products .feature-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products .media--three-two {
  aspect-ratio: 1200 / 800;
}

.page-products .media--pitch {
  aspect-ratio: 1400 / 900;
}

.page-products .feature-media--wide {
  margin-top: 6px;
}

.page-products .inline-link {
  display: inline-block;
  margin-top: 4px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 242, 214, 0.4);
  padding-bottom: 2px;
  transition: color 160ms ease, border-color 160ms ease;
}

.page-products .inline-link:hover,
.page-products .inline-link:focus-visible {
  color: var(--amber);
  border-color: var(--amber);
}

/* ---------- Subscribe demo ---------- */
.page-products .subscribe-demo {
  margin: 0 0 24px;
  padding: 20px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(242, 246, 243, 0.05);
}

.page-products .subscribe-demo__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  padding-bottom: 14px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--steel);
}

.page-products .subscribe-count__num {
  color: var(--cyan);
  font-size: 14px;
}

.page-products .subscribe-chips {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-products .chip {
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 12.5px;
  color: var(--steel);
  background: rgba(5, 13, 10, 0.5);
}

.page-products .chip--on {
  border-color: rgba(53, 242, 214, 0.55);
  color: var(--chalk);
  background: rgba(53, 242, 214, 0.10);
  box-shadow: inset 0 0 0 1px rgba(53, 242, 214, 0.12);
}

.page-products .subscribe-levels {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-products .level {
  padding: 6px 11px;
  border: 1px dashed var(--line);
  border-radius: var(--radius-sm);
  font-size: 12px;
  color: var(--steel);
}

.page-products .level--a {
  border-style: solid;
  border-color: var(--amber-dim);
  color: var(--amber);
  background: rgba(245, 197, 66, 0.08);
}

/* ---------- Score board ---------- */
.page-products .score-board {
  margin: 0 0 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(11, 46, 36, 0.62), rgba(5, 13, 10, 0.9));
  overflow: hidden;
}

.page-products .score-board__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--steel);
}

.page-products .score-board__meta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--cyan);
}

.page-products .ring {
  transform: rotate(-90deg);
}

.page-products .ring__arc {
  transition: stroke-dashoffset 600ms ease;
}

.page-products .score-board:hover .ring__arc {
  stroke-dashoffset: 0;
}

.page-products .score-board__tick {
  font-size: 11px;
}

.page-products .score-rows {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .score-row {
  display: grid;
  grid-template-columns: 62px 1fr auto auto auto 1fr 42px;
  align-items: center;
  gap: 8px;
  padding: 13px 16px;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  color: var(--chalk);
}

.page-products .score-row--alt {
  background: rgba(242, 246, 243, 0.035);
}

.page-products .score-league {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--steel);
}

.page-products .score-team {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 12.5px;
  color: var(--steel);
}

.page-products .score-value {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--amber);
  letter-spacing: -0.02em;
}

.page-products .score-sep {
  color: var(--line);
  font-family: var(--font-mono);
}

.page-products .score-min {
  font-size: 11px;
  color: var(--cyan);
  text-align: right;
}

.page-products .score-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 14px 16px;
  background: rgba(5, 13, 10, 0.6);
}

.page-products .score-tab {
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--steel);
}

.page-products .score-tab--on {
  border-color: var(--amber-dim);
  color: var(--ink);
  background: var(--amber);
}

/* ---------- Stack demo (个人看台) ---------- */
.page-products .stack-demo {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 0 0 26px;
  padding: 18px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(242, 246, 243, 0.05);
}

.page-products .stack-card {
  padding: 16px 16px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: rgba(5, 13, 10, 0.72);
  transition: transform 200ms ease, border-color 200ms ease;
}

.page-products .stack-card:hover {
  transform: translateY(-3px);
  border-color: var(--amber-dim);
}

.page-products .stack-card--score {
  background: linear-gradient(140deg, rgba(245, 197, 66, 0.14), rgba(5, 13, 10, 0.72));
}

.page-products .stack-card--fixture {
  background: linear-gradient(140deg, rgba(53, 242, 214, 0.10), rgba(5, 13, 10, 0.72));
}

.page-products .stack-card--reel {
  background: linear-gradient(140deg, rgba(191, 134, 43, 0.16), rgba(5, 13, 10, 0.72));
}

.page-products .stack-card__type {
  display: block;
  margin-bottom: 8px;
  font-size: 10.5px;
  letter-spacing: 0.2em;
  color: var(--steel);
}

.page-products .stack-card__line {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--chalk);
  letter-spacing: -0.01em;
}

.page-products .stack-card__note {
  margin: 0;
  font-size: 12.5px;
  color: var(--steel);
}

/* ---------- Next section ---------- */
.page-products .product-next {
  position: relative;
  padding: clamp(48px, 7vw, 88px) 0 clamp(56px, 8vw, 96px);
  border-top: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(11, 46, 36, 0.42), rgba(5, 13, 10, 0) 70%);
}

.page-products .next-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: clamp(24px, 3vw, 36px);
}

.page-products .next-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px 18px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(242, 246, 243, 0.04);
  text-decoration: none;
  transition: border-color 200ms ease, transform 200ms ease, background 200ms ease;
}

.page-products .next-card:hover,
.page-products .next-card:focus-visible {
  border-color: var(--amber);
  background: rgba(245, 197, 66, 0.07);
  transform: translateY(-4px);
}

.page-products .next-card--accent {
  border-color: var(--amber-dim);
  background: linear-gradient(150deg, rgba(245, 197, 66, 0.14), rgba(5, 13, 10, 0.6));
}

.page-products .next-card__idx {
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--cyan);
}

.page-products .next-card__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--chalk);
  letter-spacing: -0.01em;
}

.page-products .next-card__desc {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--steel);
}

/* ---------- Tablet ---------- */
@media (min-width: 700px) {
  .page-products .next-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-products .stack-card:nth-child(2) {
    transform: translateY(14px);
  }

  .page-products .stack-card:nth-child(2):hover {
    transform: translateY(10px);
  }
}

/* ---------- Desktop ---------- */
@media (min-width: 960px) {
  .page-products .product-hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: clamp(36px, 5vw, 72px);
  }

  .page-products .feature-item {
    grid-template-columns: var(--pp-rail) minmax(0, 1fr);
    gap: var(--pp-gap);
    padding: clamp(44px, 5vw, 68px) 0;
  }

  .page-products .feature-rail {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
    position: sticky;
    top: calc(var(--header-h) + 24px);
    align-self: start;
  }

  .page-products .feature-body {
    display: block;
  }

  .page-products .feature-item--alt .feature-body {
    display: grid;
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: clamp(28px, 4vw, 52px);
    align-items: start;
  }

  .page-products .feature-item--alt .feature-body__media {
    order: -1;
  }

  .page-products .feature-media--wide {
    margin-top: 10px;
  }

  .page-products .next-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-products .stack-card,
  .page-products .next-card,
  .page-products .inline-link,
  .page-products .ring__arc {
    transition: none;
  }

  .page-products .stack-card:hover,
  .page-products .next-card:hover,
  .page-products .next-card:focus-visible {
    transform: none;
  }

  .page-products .stack-card:nth-child(2) {
    transform: none;
  }
}