/* ===== 规则与订阅 / page-products ===== */
.page-products {
  --pr-pad: clamp(18px, 5vw, 72px);
  --pr-hair: rgba(233, 220, 198, 0.18);
  background: var(--ink);
  color: var(--fog);
  overflow-x: clip;
}

.page-products .pr-wrap {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pr-pad);
}

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

.page-products .pr-breadcrumb { padding-top: 22px; }

.page-products .pr-link {
  color: var(--cyan);
  text-decoration: none;
  font-size: 15px;
  border-bottom: 1px solid rgba(53, 208, 192, 0.45);
  padding-bottom: 2px;
  transition: color 160ms ease, border-color 160ms ease;
}

.page-products .pr-link:hover,
.page-products .pr-link:focus-visible {
  color: var(--fog);
  border-bottom-color: var(--fog);
}

/* ---- 首屏 ---- */
.page-products .pr-hero {
  padding: clamp(24px, 4vw, 44px) 0 clamp(40px, 6vw, 76px);
}

.page-products .pr-hero__grid {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pr-pad);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 44px);
}

.page-products .pr-rail {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--haze);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--pr-hair);
}

.page-products .pr-hero__kicker {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.page-products .pr-hero__batch {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-products .pr-hero__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.9rem, 6vw, 3.3rem);
  line-height: 1.08;
  letter-spacing: 0.01em;
  margin: 0 0 18px;
  color: var(--fog);
}

.page-products .pr-hero__lead {
  margin: 0 0 26px;
  max-width: 48ch;
  font-size: 16px;
  line-height: 1.9;
  font-weight: 300;
  color: var(--bone);
}

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

.page-products .pr-hero__fig {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--ink-2);
}

.page-products .pr-hero__fig img {
  width: 100%;
  filter: brightness(0.82) saturate(0.92);
}

/* ---- 分区基础 ---- */
.page-products .pr-section {
  padding: clamp(44px, 7vw, 92px) 0;
}

.page-products .pr-section--deep {
  background: var(--ink-2);
  border-top: 1px solid var(--pr-hair);
  border-bottom: 1px solid var(--pr-hair);
}

.page-products .pr-section--sand {
  background: var(--sand);
}

.page-products .pr-intro {
  margin: 0 0 clamp(26px, 4vw, 40px);
  max-width: 64ch;
  font-size: 16px;
  line-height: 1.9;
  font-weight: 300;
  color: var(--haze);
}

.page-products .pr-section--sand .pr-intro {
  color: rgba(233, 220, 198, 0.82);
}

.page-products .pr-hint {
  margin: 26px 0 0;
  padding-left: 16px;
  border-left: 1px solid rgba(233, 220, 198, 0.3);
  font-size: 14.5px;
  line-height: 1.8;
  font-weight: 300;
  color: var(--haze);
}

.page-products .pr-section--sand .pr-hint {
  border-left-color: rgba(233, 220, 198, 0.32);
  color: rgba(233, 220, 198, 0.78);
}

/* ---- 四类目录标签页 ---- */
.page-products .cat-tabs { position: relative; }

.page-products .cat-radio {
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: 1px;
  margin: 0;
  opacity: 0;
  pointer-events: none;
}

.page-products .cat-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-products .cat-chip {
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--pr-hair);
  background: transparent;
  color: var(--bone);
  font-size: 14px;
  letter-spacing: 0.02em;
  transition: background 180ms ease, color 180ms ease, border-color 180ms ease;
}

.page-products .cat-chip:hover { border-color: var(--cyan); color: var(--cyan); }

.page-products #cat-rule:checked ~ .cat-chips [for="cat-rule"],
.page-products #cat-event:checked ~ .cat-chips [for="cat-event"],
.page-products #cat-sub:checked ~ .cat-chips [for="cat-sub"],
.page-products #cat-check:checked ~ .cat-chips [for="cat-check"] {
  background: var(--amber);
  border-color: var(--amber);
  color: var(--ink);
  font-weight: 500;
}

.page-products #cat-rule:focus-visible ~ .cat-chips [for="cat-rule"],
.page-products #cat-event:focus-visible ~ .cat-chips [for="cat-event"],
.page-products #cat-sub:focus-visible ~ .cat-chips [for="cat-sub"],
.page-products #cat-check:focus-visible ~ .cat-chips [for="cat-check"] {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-products .cat-panel {
  display: none;
  background: rgba(11, 30, 45, 0.62);
  border-radius: var(--radius-md);
  padding: clamp(22px, 4vw, 36px);
  animation: prFade 200ms ease both;
}

.page-products #cat-rule:checked ~ .cat-panels #panel-rule,
.page-products #cat-event:checked ~ .cat-panels #panel-event,
.page-products #cat-sub:checked ~ .cat-panels #panel-sub,
.page-products #cat-check:checked ~ .cat-panels #panel-check { display: block; }

@keyframes prFade {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

.page-products .cat-panel__title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.02em;
  margin: 0 0 12px;
  color: var(--fog);
}

.page-products .cat-panel__text {
  margin: 0 0 16px;
  font-size: 15.5px;
  line-height: 1.85;
  font-weight: 300;
  color: var(--bone);
}

.page-products .cat-panel__list {
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.page-products .cat-panel__list li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 8px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--haze);
}

.page-products .cat-panel__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 1px;
  background: var(--amber);
}

/* ---- 第 7 版规则 ---- */
.page-products .pr-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 46px);
}

.page-products .rule-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(22px, 3vw, 32px);
}

.page-products .rule-list__item {
  border-left: 1px solid rgba(233, 220, 198, 0.32);
  padding-left: 18px;
}

.page-products .rule-list__code {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--amber);
}

.page-products .rule-list__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: 0.02em;
  margin: 0 0 8px;
  color: var(--fog);
}

.page-products .rule-list__text {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  font-weight: 300;
  color: rgba(233, 220, 198, 0.86);
}

.page-products .pr-split__aside {
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: rgba(11, 30, 45, 0.45);
}

.page-products .pr-split__aside img {
  width: 100%;
  filter: brightness(0.8) saturate(0.9);
}

.page-products .pr-split__aside figcaption,
.page-products .pr-sub-figure figcaption,
.page-products .pr-archive__figure figcaption,
.page-products .pr-scene-figure figcaption {
  padding: 12px 16px;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: rgba(233, 220, 198, 0.72);
}

/* ---- 切换指引 ---- */
.page-products .pr-switch-list {
  grid-template-columns: minmax(0, 1fr);
}

.page-products .pr-switch-list .rule-list__item {
  border-left-color: rgba(53, 208, 192, 0.42);
}

.page-products .pr-switch-list .rule-list__code { color: var(--cyan); }

.page-products .pr-switch-list .rule-list__text { color: var(--haze); }

/* ---- 订阅三步 ---- */
.page-products .pr-sub-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 46px);
  margin-bottom: clamp(30px, 5vw, 52px);
}

.page-products .pr-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-products .pr-step {
  background: linear-gradient(135deg, rgba(35, 56, 77, 0.96), rgba(11, 30, 45, 0.96));
  clip-path: polygon(0 0, 100% 0, calc(100% - 22px) 100%, 0 100%);
  padding: 26px 44px 26px 24px;
  min-height: 150px;
  transition: background 200ms ease;
}

.page-products .pr-step:hover {
  background: linear-gradient(135deg, rgba(63, 46, 34, 0.96), rgba(11, 30, 45, 0.96));
}

.page-products .pr-step__num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.page-products .pr-step__title {
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: 0.02em;
  margin: 0 0 8px;
  color: var(--fog);
}

.page-products .pr-step__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.8;
  font-weight: 300;
  color: var(--haze);
}

.page-products .pr-sub-figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--ink-2);
}

.page-products .pr-sub-figure img {
  width: 100%;
  filter: brightness(0.78) saturate(0.92);
}

.page-products .pr-gains {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-products .pr-gains li {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 20px;
  padding: 16px 0;
  border-top: 1px solid var(--pr-hair);
}

.page-products .pr-gains li:last-child { border-bottom: 1px solid var(--pr-hair); }

.page-products .pr-gains__k {
  flex: 0 0 auto;
  min-width: 13ch;
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  color: var(--amber);
}

.page-products .pr-gains__v {
  flex: 1 1 260px;
  font-size: 15px;
  line-height: 1.8;
  font-weight: 300;
  color: var(--haze);
}

/* ---- 额度归档 ---- */
.page-products .pr-archive {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
}

.page-products .pr-timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 26px;
  position: relative;
}

.page-products .pr-timeline::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(var(--cyan), var(--amber));
  opacity: 0.55;
}

.page-products .pr-timeline li {
  position: relative;
  padding-bottom: 30px;
}

.page-products .pr-timeline li:last-child { padding-bottom: 0; }

.page-products .pr-timeline li::before {
  content: "";
  position: absolute;
  left: -25px;
  top: 7px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 0 4px rgba(227, 167, 47, 0.16);
}

.page-products .pr-timeline__tag {
  display: inline-block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.page-products .pr-timeline__title {
  font-family: var(--font-display);
  font-size: 1.16rem;
  letter-spacing: 0.02em;
  margin: 0 0 6px;
  color: var(--fog);
}

.page-products .pr-timeline__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  font-weight: 300;
  color: rgba(233, 220, 198, 0.82);
}

.page-products .pr-archive__side {
  display: grid;
  gap: 24px;
  align-content: start;
}

.page-products .pr-archive__figure {
  margin: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: rgba(11, 30, 45, 0.5);
}

.page-products .pr-archive__figure img {
  width: 100%;
  filter: brightness(0.78) saturate(0.9);
}

.page-products .pr-versions__title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  letter-spacing: 0.02em;
  margin: 0 0 14px;
  color: var(--fog);
}

.page-products .pr-versions {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.page-products .pr-version {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 15px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(233, 220, 198, 0.3);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: rgba(233, 220, 198, 0.75);
}

.page-products .pr-version.is-current {
  border-color: var(--amber);
  color: var(--amber);
}

.page-products .pr-versions__note {
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.8;
  font-weight: 300;
  color: rgba(233, 220, 198, 0.78);
}

.page-products .pr-section--sand .pr-link {
  color: var(--amber);
  border-bottom-color: rgba(227, 167, 47, 0.5);
}

.page-products .pr-section--sand .pr-link:hover,
.page-products .pr-section--sand .pr-link:focus-visible {
  color: var(--fog);
  border-bottom-color: var(--fog);
}

/* ---- 适用场景 ---- */
.page-products .pr-scene-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 44px);
  margin-bottom: clamp(28px, 5vw, 48px);
}

.page-products .pr-scenes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 22px;
}

.page-products .pr-scene {
  padding-top: 16px;
  border-top: 1px solid var(--pr-hair);
}

.page-products .pr-scene h3 {
  font-family: var(--font-display);
  font-size: 1.16rem;
  letter-spacing: 0.02em;
  margin: 0 0 8px;
  color: var(--fog);
}

.page-products .pr-scene p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  font-weight: 300;
  color: var(--haze);
}

.page-products .pr-scene-figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--ink-2);
  align-self: start;
}

.page-products .pr-scene-figure img {
  width: 100%;
  filter: brightness(0.76) saturate(0.9);
}

.page-products .pr-support {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  padding-top: clamp(22px, 3vw, 32px);
  border-top: 1px solid var(--pr-hair);
}

.page-products .pr-support__num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-display);
  font-size: 2rem;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--amber);
}

.page-products .pr-support__item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  font-weight: 300;
  color: var(--haze);
}

.page-products .pr-cta {
  margin-top: clamp(30px, 5vw, 48px);
  padding: clamp(22px, 4vw, 34px);
  border-radius: var(--radius-lg);
  background: linear-gradient(120deg, rgba(63, 46, 34, 0.9), rgba(11, 30, 45, 0.9));
  display: grid;
  gap: 18px;
  justify-items: start;
}

.page-products .pr-cta__text {
  margin: 0;
  max-width: 58ch;
  font-size: 15.5px;
  line-height: 1.9;
  font-weight: 300;
  color: var(--bone);
}

/* ---- 断点 ---- */
@media (min-width: 700px) {
  .page-products .pr-hero__lead { font-size: 17px; }
  .page-products .pr-support { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; }
  .page-products .pr-scenes { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 26px 36px; }
}

@media (min-width: 900px) {
  .page-products .pr-hero__grid {
    grid-template-columns: 54px minmax(0, 1.02fr) minmax(0, 0.98fr);
    align-items: start;
  }

  .page-products .pr-rail {
    flex-direction: column;
    align-items: center;
    gap: 18px;
    border-bottom: 0;
    border-right: 1px solid var(--pr-hair);
    padding: 4px 12px 4px 0;
  }

  .page-products .pr-rail span {
    writing-mode: vertical-rl;
    text-orientation: mixed;
  }

  .page-products .pr-split {
    grid-template-columns: minmax(0, 1.28fr) minmax(0, 0.72fr);
    align-items: start;
  }

  .page-products .pr-sub-grid {
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
    align-items: start;
  }

  .page-products .pr-steps { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
  .page-products .pr-step:nth-child(2) { margin-top: 18px; }
  .page-products .pr-step:nth-child(3) { margin-top: 36px; }

  .page-products .pr-archive {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-products .pr-scene-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }

  .page-products .pr-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    justify-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-products .cat-panel { animation: none; }
  .page-products .cat-chip,
  .page-products .pr-step,
  .page-products .pr-link { transition: none; }
}