.page-products {
  --pp-rail: 232px;
  display: block;
  padding-block: clamp(20px, 3.4vw, 38px) clamp(56px, 8vw, 104px);
  background-color: var(--surface);
  color: var(--text);
}

.page-products .crumb {
  margin-bottom: clamp(18px, 3vw, 30px);
}

/* ---------- 首屏 ---------- */
.page-products .exp-hero {
  display: grid;
  gap: clamp(22px, 3.4vw, 36px);
  padding: clamp(20px, 3.6vw, 40px);
  border: 2px solid var(--rule-strong);
  box-shadow: var(--shadow-hard);
  background-color: var(--surface-raised);
  background-image:
    radial-gradient(130% 95% at 10% 0%, rgba(59, 240, 160, 0.1), rgba(11, 29, 51, 0) 58%),
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: auto, 100% 84px, 84px 100%;
}

@media (min-width: 980px) {
  .page-products .exp-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

.page-products h1 {
  margin: 12px 0 0;
  font-size: clamp(1.95rem, 4.3vw, 3.3rem);
  line-height: 1.07;
  letter-spacing: -0.02em;
  font-weight: 800;
}

.page-products .exp-hero__lede {
  max-width: 36ch;
  margin: 16px 0 0;
  font-size: 1rem;
  line-height: 1.78;
  color: var(--text);
}

.page-products .exp-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(20px, 2.6vw, 30px) 0 0;
  padding: 1px;
  background-color: var(--rule);
  border: 1px solid var(--rule);
}

@media (min-width: 620px) {
  .page-products .exp-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.page-products .exp-facts > div {
  padding: 12px 14px;
  background-color: var(--surface);
}

.page-products .exp-facts dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--text-soft);
}

.page-products .exp-facts dd {
  margin: 6px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(1.15rem, 2.2vw, 1.4rem);
  font-variant-numeric: tabular-nums;
  color: var(--accent);
}

.page-products .exp-start {
  padding: clamp(18px, 2.4vw, 26px);
  background-color: var(--surface-deep);
  border-left: 4px solid var(--accent-2);
}

.page-products .exp-start__label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--accent-2);
}

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

.page-products .exp-start__list li {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: 10px;
  font-size: 0.93rem;
  line-height: 1.62;
  color: var(--text-soft);
}

.page-products .exp-start__list .mono {
  color: var(--accent);
  font-size: 0.85rem;
  padding-top: 2px;
}

/* ---------- 主区与侧栏 ---------- */
.page-products .exp-layout {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
  margin-top: clamp(38px, 5.6vw, 72px);
}

.page-products .exp-stream {
  min-width: 0;
}

@media (min-width: 1040px) {
  .page-products .exp-layout {
    grid-template-columns: minmax(0, 1fr) var(--pp-rail);
    align-items: start;
  }

  .page-products .exp-rail {
    position: sticky;
    top: calc(var(--nav-h) + 20px);
  }
}

.page-products .exp-rail {
  padding: 18px 16px;
  background-color: var(--surface-deep);
  border: 1px solid var(--rule);
}

.page-products .exp-rail__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--accent-2);
}

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

.page-products .exp-rail__list a {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 8px;
  padding: 8px 6px;
  font-size: 0.9rem;
  color: var(--text-soft);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.page-products .exp-rail__list a:hover,
.page-products .exp-rail__list a:focus-visible {
  color: var(--text);
  border-left-color: var(--neon);
  background-color: rgba(59, 240, 160, 0.07);
}

.page-products .exp-rail__list .mono {
  font-size: 12px;
  color: var(--accent-2);
}

/* ---------- 功能模块 ---------- */
.page-products .exp-mod {
  display: grid;
  gap: 14px;
  padding-top: clamp(20px, 3vw, 32px);
  border-top: 2px solid var(--rule-strong);
}

.page-products .exp-mod + .exp-mod {
  margin-top: clamp(34px, 5vw, 58px);
}

@media (min-width: 820px) {
  .page-products .exp-mod {
    grid-template-columns: 72px minmax(0, 1fr);
    column-gap: 24px;
  }
}

.page-products .exp-mod__no {
  font-size: clamp(1.35rem, 2.4vw, 2rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--accent-2);
  font-variant-numeric: tabular-nums;
}

.page-products .exp-mod__inner {
  min-width: 0;
}

.page-products .exp-mod h2 {
  margin: 0;
  font-size: clamp(1.32rem, 2.6vw, 1.95rem);
  line-height: 1.26;
  letter-spacing: -0.015em;
  font-weight: 800;
}

.page-products .exp-rows {
  display: grid;
  margin-top: 14px;
}

.page-products .exp-row {
  display: grid;
  gap: 5px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--rule);
}

@media (min-width: 700px) {
  .page-products .exp-row {
    grid-template-columns: 84px minmax(0, 1fr);
    gap: 20px;
    padding: 13px 0;
  }
}

.page-products .exp-row__k {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--accent-2);
}

.page-products .exp-row p {
  margin: 0;
  line-height: 1.78;
  color: var(--text);
}

.page-products .exp-row p a {
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid rgba(59, 240, 160, 0.45);
}

.page-products .exp-row p a:hover,
.page-products .exp-row p a:focus-visible {
  border-bottom-color: var(--accent);
}

.page-products .exp-mod__note {
  margin: 16px 0 0;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--text-soft);
}

.page-products .exp-mod__note a {
  color: var(--accent-2);
  text-decoration: none;
  border-bottom: 1px solid rgba(232, 183, 92, 0.45);
}

/* ---------- 图组 ---------- */
.page-products .exp-fig {
  margin: 22px 0 0;
  padding: 10px;
  background-color: var(--surface-deep);
  border: 2px solid var(--rule-strong);
  box-shadow: var(--shadow-hard);
}

.page-products .exp-fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: 1px solid var(--rule);
}

.page-products .exp-fig .media-cap {
  display: block;
  margin-top: 9px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--text-soft);
}

/* ---------- 纸面区 ---------- */
.page-products .exp-mod--paper {
  padding: clamp(20px, 3vw, 34px);
  border-top-color: var(--accent-2);
}

.page-products .paper .exp-mod__no {
  color: var(--paper-ink);
  opacity: 0.42;
}

.page-products .paper .exp-row {
  border-bottom-color: rgba(36, 30, 22, 0.22);
}

.page-products .paper .exp-row__k {
  color: #8A5A12;
}

.page-products .paper .exp-row p,
.page-products .paper .exp-mod__note {
  color: var(--paper-ink);
}

.page-products .paper .exp-row p a,
.page-products .paper .exp-mod__note a {
  color: var(--blueprint);
  border-bottom-color: rgba(29, 58, 92, 0.4);
}

.page-products .paper .exp-fig {
  background-color: rgba(36, 30, 22, 0.06);
  border-color: rgba(36, 30, 22, 0.35);
  box-shadow: 6px 6px 0 rgba(36, 30, 22, 0.18);
}

.page-products .paper .exp-fig .media-cap {
  color: rgba(36, 30, 22, 0.72);
}

/* ---------- 对照清单 ---------- */
.page-products .cmp-list {
  display: grid;
  gap: 10px;
  margin-top: 22px;
}

.page-products .cmp-item {
  background-color: rgba(255, 255, 255, 0.55);
  border: 2px solid rgba(36, 30, 22, 0.22);
}

.page-products .cmp-item summary {
  position: relative;
  display: grid;
  gap: 6px;
  padding: 14px 44px 14px 16px;
  font-weight: 700;
  line-height: 1.55;
  color: var(--paper-ink);
  cursor: pointer;
  list-style: none;
}

.page-products .cmp-item summary::-webkit-details-marker {
  display: none;
}

.page-products .cmp-item summary::after {
  content: "+";
  position: absolute;
  top: 50%;
  right: 16px;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 1.15rem;
  color: #8A5A12;
}

.page-products .cmp-item[open] summary::after {
  content: "−";
}

.page-products .cmp-item__type {
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: #8A5A12;
}

.page-products .cmp-item__body {
  padding: 14px 16px 18px;
  border-top: 1px dashed rgba(36, 30, 22, 0.25);
}

.page-products .cmp-item__body dl {
  display: grid;
  gap: 12px;
  margin: 0;
}

.page-products .cmp-item__body dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: #8A5A12;
}

.page-products .cmp-item__body dd {
  margin: 4px 0 0;
  line-height: 1.72;
  color: var(--paper-ink);
}

.page-products .cmp-delta {
  display: inline-block;
  padding: 1px 7px;
  font-family: var(--font-mono);
  font-size: 0.86em;
  color: var(--ink);
  background-color: var(--neon);
  border-radius: 2px;
}

/* ---------- 快捷键演示 ---------- */
.page-products .key-demo {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 12px 16px;
  align-items: center;
  margin-top: 20px;
  padding: 16px 18px;
  background-color: var(--surface-deep);
  border: 1px solid var(--rule);
  border-left: 4px solid var(--neon);
}

.page-products .key-demo span {
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--text-soft);
}

.page-products .key-demo:hover span,
.page-products .key-demo:focus-within span {
  color: var(--text);
}

.page-products kbd {
  display: inline-block;
  min-width: 28px;
  padding: 2px 8px;
  font-family: var(--font-mono);
  font-size: 0.82em;
  text-align: center;
  color: var(--accent);
  background-color: var(--ink);
  border: 1px solid var(--rule-strong);
  border-bottom-width: 3px;
  border-radius: 4px;
  transition: color 0.18s ease, background-color 0.18s ease, border-color 0.18s ease;
}

.page-products .key-demo:hover kbd,
.page-products .key-demo:focus-within kbd,
.page-products .exp-row p:hover kbd {
  color: var(--ink);
  background-color: var(--accent);
  border-color: var(--accent);
}

.page-products .exp-mod .btn {
  justify-self: start;
  margin-top: 20px;
}

/* ---------- 页尾指引 ---------- */
.page-products .exp-foot {
  margin-top: clamp(40px, 6vw, 68px);
  padding-top: 20px;
  border-top: 1px solid var(--rule);
}

.page-products .exp-foot p {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.75;
  color: var(--text-soft);
}

.page-products .exp-foot a {
  color: var(--accent-2);
  text-decoration: none;
  border-bottom: 1px solid rgba(232, 183, 92, 0.4);
}

@media (prefers-reduced-motion: reduce) {
  .page-products .exp-rail__list a,
  .page-products kbd {
    transition: none;
  }
}
</main>