.page-products {
  --exp-gap: clamp(20px, 3.4vw, 40px);
  --exp-pad: clamp(18px, 2.4vw, 28px);
  --exp-edge: var(--line-strong);
}

/* ---------- 首屏 ---------- */
.page-products .exp-hero {
  padding: clamp(6px, 1.6vw, 18px) 0 clamp(36px, 5vw, 72px);
}

.page-products .exp-hero__inner {
  display: grid;
  gap: var(--exp-gap);
  align-items: center;
}

.page-products .exp-hero__copy {
  max-width: 56ch;
}

.page-products .exp-hero__lede {
  margin: 16px 0 0;
  font-size: clamp(0.98rem, 1.4vw, 1.0625rem);
  line-height: 1.78;
  color: var(--gray-400);
  max-width: 52ch;
}

.page-products .exp-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-products h1 {
  margin: 12px 0 0;
  font-family: var(--font-head);
  font-size: clamp(1.9rem, 5.4vw, 3.35rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--gray-200);
}

.page-products .exp-hero__figure {
  margin: 0;
}

.page-products .exp-hero__figure .figure__frame {
  border-radius: var(--radius-lg);
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 30px), calc(100% - 30px) 100%, 0 100%);
}

/* ---------- 章节头部 ---------- */
.page-products .exp-head {
  display: grid;
  gap: 10px;
  margin-bottom: clamp(26px, 4vw, 48px);
  max-width: 64ch;
}

.page-products .exp-head__num {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(1.5rem, 3.2vw, 2.3rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--gold-500);
  font-variant-numeric: tabular-nums;
}

.page-products .exp-head::after {
  content: "";
  width: 64px;
  height: 2px;
  background: linear-gradient(90deg, var(--gold-500), transparent);
}

/* ---------- 分类体系 ---------- */
.page-products .exp-cats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 218px), 1fr));
  gap: 1px;
  background: var(--exp-edge);
  border: 1px solid var(--exp-edge);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-products .exp-cat {
  display: grid;
  gap: 6px;
  align-content: start;
  padding: var(--exp-pad);
  background: var(--ink-800);
  transition: background var(--dur) var(--ease);
}

.page-products .exp-cat:hover {
  background: var(--ink-700);
}

.page-products .exp-cat__name {
  margin: 0;
  font-family: var(--font-head);
  font-size: 1.0625rem;
  letter-spacing: -0.01em;
  color: var(--gray-200);
}

.page-products .exp-cat__desc {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.62;
  color: var(--gray-400);
}

.page-products .exp-cat__meta {
  margin: 2px 0 0;
  font-size: 0.8125rem;
  color: var(--gray-400);
  font-variant-numeric: tabular-nums;
}

.page-products .exp-cat__num {
  color: var(--red-600);
  font-weight: 700;
  font-size: 0.9375rem;
}

.page-products .exp-cats__note {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--gold-500);
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--gray-400);
  max-width: 60ch;
}

/* ---------- 切换路径 ---------- */
.page-products .exp-switch {
  align-items: start;
}

.page-products .exp-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--exp-edge);
}

.page-products .exp-step {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 16px;
  padding: clamp(18px, 2.6vw, 26px) 0;
  border-bottom: 1px solid var(--exp-edge);
}

.page-products .exp-step__num {
  display: block;
  font-family: var(--font-head);
  font-size: clamp(1.35rem, 2.4vw, 1.75rem);
  line-height: 1;
  color: var(--red-600);
  font-variant-numeric: tabular-nums;
}

.page-products .exp-step__title {
  margin: 0 0 6px;
  font-family: var(--font-head);
  font-size: 1.0625rem;
  color: var(--gray-200);
}

.page-products .exp-step__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--gray-400);
  max-width: 54ch;
}

.page-products .exp-tablet {
  margin-top: clamp(20px, 3vw, 32px);
  padding: var(--exp-pad);
  background: var(--ink-800);
  border: 1px solid var(--exp-edge);
  border-radius: var(--radius);
}

.page-products .exp-tablet__svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-products .exp-tv-frame {
  fill: none;
  stroke: var(--gray-400);
  stroke-width: 2;
  opacity: 0.7;
}

.page-products .exp-tv-rail {
  fill: none;
  stroke: var(--gold-500);
  stroke-width: 1.5;
  opacity: 0.85;
}

.page-products .exp-tv-rail-lines {
  stroke: var(--gray-400);
  stroke-width: 2;
  stroke-linecap: round;
  opacity: 0.3;
}

.page-products .exp-tv-divide {
  stroke: var(--exp-edge);
  stroke-width: 1.5;
}

.page-products .exp-tv-block {
  fill: none;
  stroke: var(--exp-edge);
  stroke-width: 1.5;
}

.page-products .exp-tv-arrow {
  stroke: var(--red-600);
  stroke-width: 2;
  stroke-linecap: round;
}

.page-products .exp-tv-arrow-head {
  fill: var(--red-600);
}

.page-products .exp-tablet__caption {
  margin: 14px 0 0;
  font-size: 0.8125rem;
  line-height: 1.65;
  color: var(--gray-400);
}

/* ---------- 会员入口 ---------- */
.page-products .exp-member-grid {
  align-items: start;
}

.page-products .exp-members {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--exp-edge);
  border: 1px solid var(--exp-edge);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-products .exp-member {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: clamp(16px, 2vw, 20px) clamp(16px, 2vw, 22px);
  background: var(--ink-800);
  transition: background var(--dur) var(--ease);
}

.page-products .exp-member:hover {
  background: var(--ink-700);
}

.page-products .exp-member__dot {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border: 1px solid var(--gold-500);
  border-radius: 50%;
  font-size: 0.75rem;
  color: var(--gold-500);
  font-variant-numeric: tabular-nums;
}

.page-products .exp-member__name {
  margin: 0 0 4px;
  font-family: var(--font-head);
  font-size: 1.0625rem;
  color: var(--gray-200);
}

.page-products .exp-member__text {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--gray-400);
}

.page-products .exp-member-figure {
  margin: clamp(20px, 3vw, 0) 0 0;
}

.page-products .exp-member-figure .figure__frame {
  border-radius: var(--radius);
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 26px 100%, 0 calc(100% - 26px));
}

/* ---------- 两种找法 ---------- */
.page-products .exp-tabs {
  margin-top: clamp(6px, 1.6vw, 16px);
}

.page-products .exp-panel__title {
  margin: clamp(18px, 2.6vw, 26px) 0 14px;
  font-family: var(--font-head);
  font-size: clamp(1.0625rem, 1.8vw, 1.25rem);
  letter-spacing: -0.01em;
  color: var(--gray-200);
}

.page-products .exp-points {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
  max-width: 62ch;
}

.page-products .exp-points li {
  position: relative;
  padding-left: 20px;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--gray-400);
}

.page-products .exp-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 9px;
  height: 2px;
  background: var(--red-600);
}

.page-products .exp-points--steel li {
  color: var(--gray-200);
}

.page-products .exp-points--steel li::before {
  background: var(--gold-500);
}

.page-products .exp-find-figure {
  margin: clamp(28px, 4vw, 48px) 0 0;
  max-width: 1000px;
}

.page-products .exp-find-figure .figure__frame {
  border-radius: var(--radius);
  overflow: hidden;
}

/* ---------- 规则与订阅 ---------- */
.page-products .exp-rules {
  align-items: start;
}

.page-products .exp-fold {
  border-bottom: 1px solid var(--exp-edge);
}

.page-products .exp-fold:first-child {
  border-top: 1px solid var(--exp-edge);
}

.page-products .exp-fold .fold__summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: clamp(14px, 2vw, 18px) 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-head);
  font-size: 1.0625rem;
  color: var(--gray-200);
}

.page-products .exp-fold .fold__summary::-webkit-details-marker {
  display: none;
}

.page-products .exp-fold .fold__summary::after {
  content: "+";
  flex: none;
  font-size: 1.15rem;
  line-height: 1;
  color: var(--red-600);
}

.page-products .exp-fold[open] .fold__summary::after {
  content: "–";
}

.page-products .exp-fold .fold__summary:focus-visible {
  outline: 2px solid var(--red-600);
  outline-offset: 3px;
}

.page-products .exp-fold .fold__body {
  padding: 0 0 clamp(16px, 2vw, 20px);
  font-size: 0.9375rem;
  line-height: 1.78;
  color: var(--gray-400);
  max-width: 60ch;
}

.page-products .exp-sub-panel {
  margin-top: clamp(20px, 3vw, 0);
}

.page-products .exp-sub-panel .panel__title {
  font-family: var(--font-head);
  font-size: 1.0625rem;
  color: var(--gray-200);
}

.page-products .exp-rules-figure {
  margin: clamp(28px, 4vw, 48px) 0 0;
  max-width: 760px;
}

.page-products .exp-rules-figure .figure__frame {
  border-radius: var(--radius);
  overflow: hidden;
}

/* ---------- 尾部 ---------- */
.page-products .exp-tail__grid {
  align-items: center;
}

.page-products .exp-tail__title {
  margin: 0 0 16px;
  font-size: clamp(1.4rem, 2.8vw, 2rem);
}

.page-products .exp-tail__text {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--gray-400);
  max-width: 50ch;
}

.page-products .exp-tail__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 28px);
}

.page-products .exp-tail-figure {
  margin: clamp(24px, 3vw, 0) 0 0;
}

.page-products .exp-tail-figure .figure__frame {
  border-radius: var(--radius);
  overflow: hidden;
  clip-path: polygon(26px 0, 100% 0, 100% 100%, 0 100%, 0 26px);
}

.page-products .exp-links {
  display: grid;
  gap: 12px;
  margin-top: clamp(32px, 4.5vw, 56px);
}

.page-products .exp-link {
  display: grid;
  gap: 7px;
  padding: clamp(16px, 2vw, 20px);
  background: var(--ink-800);
  border: 1px solid var(--exp-edge);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-products .exp-link:hover,
.page-products .exp-link:focus-visible {
  border-color: var(--red-600);
  background: var(--ink-700);
}

.page-products .exp-link:focus-visible {
  outline: 2px solid var(--red-600);
  outline-offset: 3px;
}

.page-products .exp-link__label {
  font-family: var(--font-head);
  font-size: 0.9375rem;
  color: var(--gray-200);
}

.page-products .exp-link__text {
  font-size: 0.8125rem;
  line-height: 1.65;
  color: var(--gray-400);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-products .exp-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-products .exp-hero__inner {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.12fr);
    gap: clamp(32px, 5vw, 72px);
  }

  .page-products .exp-member-figure {
    margin-top: 0;
  }
}

@media (min-width: 1024px) {
  .page-products .exp-links {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

@media (min-width: 1280px) {
  .page-products .exp-cats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 899px) {
  .page-products .exp-sub-panel {
    margin-top: 28px;
  }
}

@media (max-width: 559px) {
  .page-products .exp-member {
    grid-template-columns: 30px minmax(0, 1fr);
    gap: 12px;
  }

  .page-products .exp-step {
    grid-template-columns: 34px minmax(0, 1fr);
    gap: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .exp-cat,
  .page-products .exp-member,
  .page-products .exp-link {
    transition: none;
  }
}