.page-products {
  --ep-card-w: min(432px, 80vw);
  --ep-rail-gap: clamp(16px, 2.2vw, 26px);
  --ep-radius: 3px;
  background: var(--ink-900);
  color: var(--white);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-products .ep-hero {
  position: relative;
  padding: clamp(104px, 15vw, 176px) 0 clamp(44px, 6vw, 80px);
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(16, 26, 51, 0.9) 0%, rgba(7, 13, 28, 0) 62%),
    repeating-linear-gradient(90deg, var(--line-soft) 0 1px, transparent 1px 96px);
  background-size: auto, auto;
}

.page-products .ep-hero__grid {
  display: grid;
  gap: clamp(32px, 5vw, 60px);
  grid-template-columns: 1fr;
  align-items: end;
}

.page-products .ep-hero__lead {
  max-width: 66ch;
}

.page-products .ep-hero__title {
  font-family: var(--font-display);
  font-size: clamp(34px, 6.4vw, 66px);
  line-height: 0.98;
  letter-spacing: -0.015em;
  text-transform: none;
  margin: 14px 0 20px;
  color: var(--white);
}

.page-products .ep-hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-products .ep-hero__aside {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-products .ep-hero__aside .stat {
  background: var(--ink-800);
  padding: 18px 16px 20px;
}

.page-products .ep-hero__aside .stat__value {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(28px, 3.4vw, 40px);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.page-products .ep-hero__aside .stat__label {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  line-height: 1.55;
  color: var(--muted);
}

/* ---------- 索引带 ---------- */
.page-products .ep-strip {
  border-bottom: 1px solid var(--line);
  background: var(--ink-paper);
}

.page-products .ep-strip__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  padding-top: 12px;
  padding-bottom: 12px;
}

.page-products .ep-strip__row .index-strip__cell {
  padding: 4px 18px;
  border-left: 1px solid var(--line);
  font-size: 13px;
}

.page-products .ep-strip__row .index-strip__cell:first-child {
  border-left: 0;
  padding-left: 0;
}

/* ---------- 功能轨道 ---------- */
.page-products .ep-track {
  padding-bottom: clamp(48px, 7vw, 84px);
  position: relative;
  background: var(--ink-900);
}

.page-products .ep-head {
  margin-bottom: clamp(24px, 3.4vw, 40px);
}

.page-products .ep-rail {
  display: flex;
  gap: var(--ep-rail-gap);
  padding: 6px var(--gutter) 26px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--orange) var(--ink-800);
  outline-offset: 4px;
}

.page-products .ep-card {
  flex: 0 0 var(--ep-card-w);
  scroll-snap-align: start;
  perspective: 1400px;
  outline: none;
  border-radius: var(--ep-radius);
}

.page-products .ep-card:focus-visible {
  box-shadow: 0 0 0 2px var(--cyan);
}

.page-products .ep-card__inner {
  position: relative;
  min-height: 452px;
  transform-style: preserve-3d;
  transition: transform 0.62s var(--ease);
}

.page-products .ep-card:hover .ep-card__inner,
.page-products .ep-card:focus-within .ep-card__inner {
  transform: rotateY(180deg);
}

@media (prefers-reduced-motion: reduce) {
  .page-products .ep-card__inner {
    transition: none;
  }
}

.page-products .ep-card__face {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  backface-visibility: hidden;
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-radius: var(--ep-radius);
  overflow: hidden;
}

.page-products .ep-card__face--back {
  transform: rotateY(180deg);
  padding: 26px 24px;
  border-top: 2px solid var(--orange);
  overflow-y: auto;
}

.page-products .ep-card__face--chart,
.page-products .ep-card__face--num {
  border-top: 2px solid var(--cyan);
}

.page-products .ep-card__img {
  display: block;
  width: 100%;
  height: 214px;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.06);
}

.page-products .ep-card__front-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-products .ep-card__title {
  font-family: var(--font-display);
  font-size: clamp(24px, 2.4vw, 30px);
  line-height: 1.06;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--white);
}

.page-products .ep-card__title--sm {
  font-size: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 6px;
}

.page-products .ep-card__line {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

.page-products .ep-card__chart {
  height: 214px;
  padding: 26px 24px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 12px;
  background: linear-gradient(160deg, var(--ink-700), var(--ink-900));
}

.page-products .ep-card__chart-bar {
  display: block;
  height: 10px;
  background: var(--cyan);
  opacity: 0.82;
}

.page-products .ep-card__chart-bar--a { width: 88%; }
.page-products .ep-card__chart-bar--b { width: 70%; background: var(--orange); }
.page-products .ep-card__chart-bar--c { width: 54%; }
.page-products .ep-card__chart-bar--d { width: 38%; background: var(--orange-light); }
.page-products .ep-card__chart-bar--e { width: 24%; }

.page-products .ep-card__face--num {
  justify-content: flex-start;
}

.page-products .ep-card__big {
  display: block;
  font-family: var(--font-display);
  font-size: 148px;
  line-height: 0.82;
  letter-spacing: -0.04em;
  padding: 26px 24px 0;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.page-products .ep-fields {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.page-products .ep-fields__row {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--line);
}

.page-products .ep-fields__row dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  text-transform: none;
}

.page-products .ep-fields__row dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper-2);
}

/* ---------- 榜单（纸质区） ---------- */
.page-products .ep-boards {
  background: var(--paper);
  color: var(--ink-900);
  padding: clamp(48px, 7vw, 92px) 0;
}

.page-products .ep-boards__grid {
  display: grid;
  gap: clamp(28px, 4vw, 56px);
  grid-template-columns: 1fr;
}

.page-products .ep-boards__figure {
  margin: 0;
}

.page-products .ep-boards__figure img {
  display: block;
  width: 100%;
  max-width: 520px;
  height: auto;
  border: 1px solid var(--line);
}

.page-products .ep-boards__figure .media-frame__caption {
  margin-top: 10px;
  max-width: 46ch;
  font-size: 13px;
  line-height: 1.65;
  color: var(--ink-700);
}

.page-products .ep-boards .kicker {
  color: var(--orange);
}

.page-products .ep-boards .section__title {
  color: var(--ink-900);
}

.page-products .ep-boards .section__lede {
  color: var(--ink-700);
}

.page-products .ep-board-list {
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--paper-2);
}

.page-products .ep-board {
  padding: 22px 0;
  border-bottom: 1px solid var(--paper-2);
}

.page-products .ep-board__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 16px;
  justify-content: space-between;
}

.page-products .ep-board__name {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(19px, 2vw, 24px);
  line-height: 1.1;
  color: var(--ink-900);
}

.page-products .ep-board__ts {
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--orange);
}

.page-products .ep-board__desc {
  margin: 8px 0 14px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-700);
  max-width: 62ch;
}

.page-products .ep-board__bars {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.page-products .ep-board__bar {
  display: block;
  height: 8px;
  background: var(--orange);
}

.page-products .ep-board__bar--a { width: 82%; }
.page-products .ep-board__bar--b { width: 64%; background: var(--ink-700); }
.page-products .ep-board__bar--c { width: 46%; }
.page-products .ep-board__bar--d { width: 31%; background: var(--ink-700); }

/* ---------- 操作路径 ---------- */
.page-products .ep-path {
  background: var(--ink-900);
  padding-top: 0;
}

.page-products .ep-path__figure {
  margin: 0 0 clamp(36px, 5vw, 64px);
  border-bottom: 1px solid var(--line);
}

.page-products .ep-path__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-height: 340px;
  object-fit: cover;
}

.page-products .ep-steps {
  list-style: none;
  margin: clamp(28px, 4vw, 48px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  counter-reset: step;
}

.page-products .ep-step {
  background: var(--ink-800);
  padding: 24px 22px 26px;
  display: grid;
  gap: 8px;
}

.page-products .ep-step__num {
  font-family: var(--font-display);
  font-size: 44px;
  line-height: 0.9;
  letter-spacing: -0.03em;
  color: var(--orange);
  font-variant-numeric: tabular-nums;
}

.page-products .ep-step__title {
  margin: 0;
  font-size: 18px;
  line-height: 1.3;
  color: var(--white);
}

.page-products .ep-step__body {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 关注与提醒 ---------- */
.page-products .ep-alert {
  background: var(--ink-900);
}

.page-products .ep-alert__grid {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  grid-template-columns: 1fr;
  align-items: start;
}

.page-products .ep-alert__list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.page-products .ep-alert__list li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--paper-2);
}

.page-products .ep-alert__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 10px;
  height: 2px;
  background: var(--cyan);
}

.page-products .ep-alert__panel {
  background: var(--ink-800);
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
  padding: 24px 22px 26px;
}

.page-products .ep-alert__panel-title,
.page-products .ep-alert__panel-foot {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

.page-products .ep-alert__panel-foot {
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  color: var(--muted);
}

.page-products .ep-alert__chips {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-products .ep-alert__chip {
  font-size: 14px;
  line-height: 1.5;
  padding: 10px 14px;
  border: 1px solid var(--line);
  color: var(--muted);
}

.page-products .ep-alert__chip--on {
  border-color: var(--orange);
  color: var(--white);
  background: rgba(255, 106, 26, 0.08);
}

/* ---------- 访问方式 ---------- */
.page-products .ep-access {
  background: var(--ink-900);
}

.page-products .ep-access__grid {
  display: grid;
  gap: clamp(28px, 4vw, 54px);
  grid-template-columns: 1fr;
  align-items: center;
}

.page-products .ep-access__specs {
  margin: 26px 0 0;
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--line);
}

.page-products .ep-access__spec {
  display: grid;
  grid-template-columns: 74px 1fr;
  gap: 16px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-products .ep-access__spec dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--cyan);
}

.page-products .ep-access__spec dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--paper-2);
}

.page-products .ep-access__figure {
  margin: 0;
}

.page-products .ep-access__figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
}

/* ---------- 适用人群（纸质区） ---------- */
.page-products .ep-people {
  background: var(--paper);
  color: var(--ink-900);
  padding: clamp(48px, 7vw, 92px) 0;
}

.page-products .ep-people .kicker {
  color: var(--orange);
}

.page-products .ep-people .section__title {
  color: var(--ink-900);
}

.page-products .ep-people__grid {
  margin-top: clamp(26px, 3.6vw, 44px);
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
}

.page-products .ep-person {
  background: var(--white);
  border: 1px solid var(--paper-2);
  border-top: 2px solid var(--orange);
  padding: 22px 20px 24px;
}

.page-products .ep-person__idx {
  display: block;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-products .ep-person__title {
  margin: 10px 0 8px;
  font-size: 17px;
  line-height: 1.35;
  color: var(--ink-900);
}

.page-products .ep-person p {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink-700);
}

/* ---------- 结尾横幅 ---------- */
.page-products .ep-outro {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-top: 2px solid var(--orange);
  background: var(--ink-900);
}

.page-products .ep-outro__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.28;
  z-index: -1;
}

.page-products .ep-outro__inner {
  padding-top: clamp(60px, 9vw, 118px);
  padding-bottom: clamp(60px, 9vw, 118px);
  max-width: 720px;
}

.page-products .ep-outro__title {
  font-family: var(--font-display);
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.04;
  letter-spacing: -0.015em;
  margin: 0 0 16px;
  color: var(--white);
}

.page-products .ep-outro__text {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
  color: var(--paper-2);
  max-width: 58ch;
}

.page-products .ep-outro__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-products .ep-outro__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: 28px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.page-products .ep-outro__links .footer__link {
  font-size: 14px;
  text-decoration: underline;
  text-decoration-color: var(--cyan);
  text-underline-offset: 4px;
  color: var(--paper-2);
}

.page-products .ep-outro__links .footer__link:hover {
  color: var(--white);
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-products .ep-steps {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-products .ep-people__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-products .ep-hero__grid {
    grid-template-columns: minmax(0, 1.35fr) minmax(0, 0.9fr);
  }

  .page-products .ep-alert__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.85fr);
  }

  .page-products .ep-access__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  }
}

@media (min-width: 1024px) {
  .page-products .ep-boards__grid {
    grid-template-columns: minmax(0, 0.62fr) minmax(0, 1.38fr);
    align-items: start;
  }

  .page-products .ep-steps {
    grid-template-columns: repeat(4, 1fr);
  }

  .page-products .ep-people__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 719px) {
  .page-products .ep-card__inner {
    min-height: 0;
    transform: none !important;
    transform-style: flat;
  }

  .page-products .ep-card__face {
    position: static;
    transform: none !important;
    backface-visibility: visible;
  }

  .page-products .ep-card__face--back {
    border-top: 1px dashed var(--line);
  }

  .page-products .ep-card__big {
    font-size: 104px;
  }

  .page-products .ep-outro__bg {
    opacity: 0.2;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .ep-rail {
    scroll-behavior: auto;
  }
}
<<<END>>>