.page-products {
  --pp-gap: clamp(16px, 2.6vw, 26px);
  --pp-pad: clamp(18px, 3vw, 32px);
  --pp-cut: 22px;
}

.page-products img {
  display: block;
  max-width: 100%;
}

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

/* ---------- 首屏 ---------- */
.page-products__hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(22px, 4vw, 44px) clamp(8px, 2vw, 18px);
}

.page-products__hero::before {
  content: "";
  position: absolute;
  inset: -30% -12% auto -12%;
  height: 340px;
  background:
    radial-gradient(58% 100% at 16% 0%, rgba(53, 242, 208, 0.16), transparent 70%),
    radial-gradient(52% 92% at 88% 8%, rgba(255, 154, 60, 0.13), transparent 72%);
  pointer-events: none;
}

.page-products__hero > .wrap {
  position: relative;
  z-index: 1;
}

.page-products__hero h1 {
  margin: 10px 0 0;
  max-width: 19em;
  font-family: var(--font-display);
  font-size: clamp(29px, 6.2vw, 54px);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.012em;
  color: var(--text);
}

.page-products__lede {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.85;
  color: var(--text);
}

.page-products__lede--tight {
  margin-top: 10px;
  max-width: 56ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-products__stats {
  list-style: none;
  margin: clamp(22px, 4vw, 34px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
}

.page-products__stats li {
  background: var(--ink-800);
  padding: 14px 14px 16px;
}

.page-products__stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(21px, 3vw, 29px);
  line-height: 1.1;
  color: var(--cyan);
}

.page-products__stat-label {
  display: block;
  margin-top: 6px;
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--muted);
}

/* ---------- 路径总览 ---------- */
.page-products__h2 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 3.6vw, 34px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-products__tree {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  margin-top: clamp(20px, 3vw, 30px);
  padding: var(--pp-pad);
  background: var(--ink-800);
  border: 1px solid var(--line-soft);
  clip-path: polygon(0 0, calc(100% - 28px) 0, 100% 28px, 100% 100%, 0 100%);
}

.page-products__bg-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.16;
  pointer-events: none;
  z-index: -1;
}

.page-products__bg-img--soft {
  opacity: 0.13;
}

.page-products__steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products__step-link {
  display: block;
  height: 100%;
  padding: 14px 12px 16px;
  text-decoration: none;
  color: var(--text);
  background: rgba(7, 31, 26, 0.74);
  border: 1px solid var(--line-soft);
  transition: transform var(--t) var(--ease), border-color var(--t) var(--ease), background-color var(--t) var(--ease);
}

.page-products__step-link::before {
  content: "";
  display: block;
  width: 22px;
  height: 2px;
  margin-bottom: 10px;
  background: var(--cyan);
  transition: width var(--t) var(--ease), background-color var(--t) var(--ease);
}

.page-products__step-link:hover,
.page-products__step-link:focus-visible {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  background: rgba(12, 43, 36, 0.95);
}

.page-products__step-link:hover::before,
.page-products__step-link:focus-visible::before {
  width: 42px;
  background: var(--orange);
}

.page-products__step-idx {
  display: block;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
  margin-bottom: 6px;
}

.page-products__step-name {
  display: block;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-products__step-note {
  display: block;
  margin-top: 6px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--muted);
}

/* ---------- 模块区：侧轨 + 卡流 ---------- */
.page-products__layout {
  display: grid;
  gap: clamp(22px, 3.4vw, 40px);
}

.page-products__rail {
  border-top: 1px solid var(--line-soft);
  padding-top: 14px;
}

.page-products__raillist {
  list-style: none;
  display: flex;
  gap: 8px;
  margin: 12px 0 0;
  padding: 0 0 6px;
  overflow-x: auto;
}

.page-products__raillist a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  white-space: nowrap;
  font-size: 14px;
  text-decoration: none;
  color: var(--text);
  border: 1px solid var(--line-soft);
  background: var(--ink-800);
  transition: border-color var(--t) var(--ease), color var(--t) var(--ease);
}

.page-products__raillist a:hover,
.page-products__raillist a:focus-visible {
  border-color: var(--orange);
  color: var(--cyan);
}

.page-products__stack {
  display: grid;
  gap: var(--pp-gap);
  min-width: 0;
}

.page-products__mod {
  position: relative;
  scroll-margin-top: 84px;
  padding: var(--pp-pad);
  background: linear-gradient(180deg, var(--ink-800), var(--ink-900) 88%);
  border: 1px solid var(--line-soft);
  clip-path: polygon(0 0, calc(100% - var(--pp-cut)) 0, 100% var(--pp-cut), 100% 100%, 0 100%);
  transition: transform var(--t) var(--ease), border-color var(--t) var(--ease);
}

.page-products__mod:hover {
  transform: translateY(-3px);
  border-color: var(--line);
}

.page-products__mod--watch {
  background: linear-gradient(155deg, rgba(27, 27, 58, 0.94), var(--ink-900) 72%);
  overflow: hidden;
  isolation: isolate;
}

.page-products__modbody {
  position: relative;
  z-index: 1;
}

.page-products__modhead {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 14px;
}

.page-products__modidx {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--orange);
}

.page-products__mod h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.6vw, 27px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-products__text {
  margin: 14px 0 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--text);
}

.page-products__media {
  margin-top: 16px;
}

.page-products__media img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-products__split {
  display: grid;
  gap: 18px;
}

.page-products__flow {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products__flow li {
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr);
  gap: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--line-soft);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text);
}

.page-products__flow-key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  padding-top: 3px;
}

.page-products__keys {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products__keys li {
  padding: 11px 13px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
  background: rgba(7, 31, 26, 0.6);
  border-left: 2px solid var(--cyan);
}

.page-products__keys-key {
  display: block;
  margin-bottom: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--text);
}

/* ---------- 设备与适配 ---------- */
.page-products__device {
  display: grid;
  gap: 18px;
}

.page-products__devs {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-products__dev {
  padding: 12px 14px;
  background: rgba(7, 31, 26, 0.62);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--cyan);
}

.page-products__dev--accent {
  border-left-color: var(--orange);
  background: rgba(255, 154, 60, 0.07);
}

.page-products__dev-name {
  display: block;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
}

.page-products__dev-note {
  display: block;
  margin-top: 4px;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--muted);
}

.page-products__sub {
  margin: 26px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-display);
  font-size: clamp(17px, 2.2vw, 21px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-products__scroller {
  margin-top: 16px;
  display: flex;
  gap: 12px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  padding-bottom: 14px;
  -webkit-overflow-scrolling: touch;
}

.page-products__scroller::-webkit-scrollbar {
  height: 5px;
}

.page-products__scroller::-webkit-scrollbar-track {
  background: var(--line-soft);
}

.page-products__scroller::-webkit-scrollbar-thumb {
  background: var(--line-strong);
}

.page-products__spec {
  flex: 0 0 clamp(216px, 74%, 300px);
  scroll-snap-align: start;
  padding: 16px;
  background: var(--ink-900);
  border: 1px solid var(--line-soft);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
  transition: border-color var(--t) var(--ease), transform var(--t) var(--ease);
}

.page-products__spec:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
}

.page-products__spec-idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-products__spec-name {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
}

.page-products__spec-text {
  margin: 8px 0 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 使用场景 ---------- */
.page-products__cases {
  margin-top: clamp(18px, 3vw, 26px);
  display: grid;
  gap: 14px;
}

.page-products__case {
  position: relative;
  padding: 22px 20px 20px;
  background: var(--ink-800);
  border: 1px solid var(--line-soft);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
  transition: transform var(--t) var(--ease), border-color var(--t) var(--ease);
}

.page-products__case::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 56px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), transparent);
}

.page-products__case:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
}

.page-products__case-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-products__case h3 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--text);
}

.page-products__case p {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-products__case-link {
  display: inline-block;
  margin-top: 14px;
  font-size: 14px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease);
}

.page-products__case-link:hover,
.page-products__case-link:focus-visible {
  color: var(--orange);
  border-color: var(--orange);
}

.page-products__next {
  margin-top: clamp(22px, 3.4vw, 32px);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-products__stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-products__steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-products__split {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.85fr);
    align-items: start;
  }

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

@media (min-width: 860px) {
  .page-products__steps {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 12px;
  }

  .page-products__device {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    align-items: start;
  }

  .page-products__device-media {
    margin-top: 14px;
  }
}

@media (min-width: 900px) {
  .page-products__layout {
    grid-template-columns: 208px minmax(0, 1fr);
    align-items: start;
  }

  .page-products__rail {
    position: sticky;
    top: 24px;
    padding-left: 14px;
    border-top: 0;
    border-left: 1px solid var(--line-soft);
    padding-top: 0;
  }

  .page-products__raillist {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-products__raillist a {
    white-space: normal;
    border-color: transparent;
    background: transparent;
    padding: 9px 10px;
    border-left: 2px solid transparent;
  }

  .page-products__raillist a:hover,
  .page-products__raillist a:focus-visible {
    background: var(--ink-800);
    border-left-color: var(--orange);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products__step-link,
  .page-products__mod,
  .page-products__spec,
  .page-products__case,
  .page-products__step-link::before,
  .page-products__case-link {
    transition: none;
  }

  .page-products__step-link:hover,
  .page-products__step-link:focus-visible,
  .page-products__mod:hover,
  .page-products__spec:hover,
  .page-products__case:hover {
    transform: none;
  }
}
<<<END>>>