/* ===================== 星游 · 使用须知 ===================== */
.page-disclaimer {
  --pd-rule: rgba(192, 204, 232, 0.20);
  --pd-rule-strong: rgba(192, 204, 232, 0.38);
  --pd-tick: rgba(70, 229, 255, 0.5);
  --pd-glow: rgba(70, 229, 255, 0.16);
  position: relative;
  overflow-x: clip;
  color: var(--c-star);
  background-image:
    linear-gradient(rgba(192, 204, 232, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(192, 204, 232, 0.045) 1px, transparent 1px);
  background-size: 64px 64px, 64px 64px;
}

.page-disclaimer::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 560px;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(58% 68% at 84% 6%, rgba(124, 92, 255, 0.22), transparent 62%),
    radial-gradient(50% 60% at 2% 0%, rgba(70, 229, 255, 0.12), transparent 58%);
}

/* ---------- 首屏 ---------- */
.pd-hero {
  position: relative;
  z-index: 1;
  border-bottom: 1px solid var(--pd-rule);
}

.pd-hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: center;
  gap: clamp(26px, 4vw, 52px);
  padding-block: clamp(26px, 5vw, 56px) clamp(32px, 6vw, 72px);
}

.pd-hero__mark {
  display: none;
  position: absolute;
  top: 4px;
  right: 0;
  writing-mode: vertical-rl;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.42em;
  color: rgba(70, 229, 255, 0.7);
}

.pd-crumb-wrap {
  display: block;
  margin-bottom: 18px;
}

.pd-crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  color: var(--c-dust);
}

.pd-crumb li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.pd-crumb li + li::before {
  content: "/";
  color: var(--c-nebula);
}

.pd-crumb a {
  color: var(--c-dust);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.pd-crumb a:hover,
.pd-crumb a:focus-visible {
  color: var(--c-electric);
  outline: none;
}

.pd-crumb [aria-current="page"] {
  color: var(--c-star);
}

.pd-hero__title {
  margin: 0 0 18px;
  font-family: var(--f-display);
  font-size: clamp(32px, 6.2vw, 58px);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: 0.06em;
  color: var(--c-star);
  text-shadow: 0 0 46px rgba(70, 229, 255, 0.22);
}

.pd-hero__lead {
  max-width: 54ch;
  margin: 0 0 22px;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.9;
  color: var(--c-dust);
}

.pd-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pd-hero__figure {
  position: relative;
  margin: 0;
}

.pd-hero__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--pd-rule-strong);
  border-radius: var(--r-md);
  background: var(--c-window);
  box-shadow:
    0 0 0 1px rgba(5, 7, 14, 0.6),
    0 26px 64px rgba(5, 7, 14, 0.62),
    0 0 64px rgba(124, 92, 255, 0.16);
}

.pd-hero__caption {
  margin-top: 10px;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--c-dust);
}

/* ---------- 正文骨架 ---------- */
.pd-body {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 52px);
  padding-block: clamp(30px, 5vw, 68px) clamp(36px, 6vw, 76px);
}

/* ---------- 侧边目录 ---------- */
.pd-toc {
  position: relative;
  min-width: 0;
}

.pd-toc__label {
  margin: 0 0 12px;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--c-nebula);
}

.pd-toc__list {
  display: flex;
  gap: 8px;
  margin: 0 0 18px;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.pd-toc__link {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 9px 12px;
  border-left: 2px solid var(--pd-rule);
  color: var(--c-dust);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              background-color var(--dur) var(--ease);
}

.pd-toc__link span {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--c-nebula);
}

.pd-toc__link:hover,
.pd-toc__link:focus-visible {
  color: var(--c-electric);
  border-left-color: var(--c-electric);
  background: rgba(70, 229, 255, 0.07);
  outline: none;
}

.pd-toc__back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 13px;
  border: 1px solid var(--pd-rule);
  border-radius: var(--r-sm);
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-dust);
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.pd-toc__back:hover,
.pd-toc__back:focus-visible {
  color: var(--c-amber);
  border-color: rgba(255, 198, 92, 0.6);
  outline: none;
}

/* ---------- 条款列表 ---------- */
.pd-clauses {
  display: grid;
  gap: clamp(34px, 5vw, 58px);
  min-width: 0;
}

.pd-clause {
  position: relative;
  padding-left: 24px;
  scroll-margin-top: calc(var(--header-h) + 26px);
}

.pd-clause::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 26px;
  bottom: -28px;
  width: 1px;
  background: linear-gradient(to bottom,
    rgba(70, 229, 255, 0.6),
    rgba(70, 229, 255, 0.10) 68%,
    transparent);
}

.pd-clause:last-child::before {
  display: none;
}

.pd-clause::after {
  content: "";
  position: absolute;
  left: 0;
  top: 13px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  border: 1px solid var(--c-electric);
  background: var(--c-void);
  box-shadow: 0 0 14px rgba(70, 229, 255, 0.55);
}

.pd-clause__head {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 12px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--pd-rule);
}

.pd-clause__head::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 86px;
  height: 1px;
  background: linear-gradient(to right, var(--c-nebula), transparent);
}

.pd-clause__num {
  flex: none;
  font-family: var(--f-mono);
  font-size: clamp(20px, 3vw, 28px);
  letter-spacing: 0.06em;
  color: var(--c-nebula);
}

.pd-clause__title {
  margin: 0;
  font-family: var(--f-display);
  font-size: clamp(20px, 2.6vw, 28px);
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--c-star);
}

.pd-clause__body {
  min-width: 0;
}

.pd-clause__body > p {
  max-width: var(--w-read);
  margin: 0 0 14px;
  font-size: 15.5px;
  line-height: 1.88;
  color: var(--c-dust);
}

.pd-list {
  display: grid;
  gap: 10px;
  max-width: var(--w-read);
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}

.pd-list li {
  position: relative;
  padding-left: 22px;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--c-dust);
}

.pd-list li::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 0.74em;
  width: 6px;
  height: 6px;
  border: 1px solid var(--c-electric);
  transform: rotate(45deg);
}

.pd-list strong {
  color: var(--c-star);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.pd-note {
  max-width: var(--w-read);
  margin: 4px 0 18px;
  padding: 14px 18px;
  border: 1px solid var(--pd-rule);
  border-left: 3px solid var(--c-amber);
  border-radius: var(--r-sm);
  background: rgba(255, 198, 92, 0.06);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--c-star);
}

/* ---------- 联系方式定义列表 ---------- */
.pd-contact {
  max-width: var(--w-read);
  margin: 0 0 18px;
  padding: 0;
}

.pd-contact__row {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--pd-rule);
}

.pd-contact__row:first-child {
  border-top: 1px dashed var(--pd-rule);
}

.pd-contact__key {
  padding-top: 2px;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-nebula);
}

.pd-contact__val {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-star);
  word-break: break-word;
}

/* ---------- 关联入口 ---------- */
.pd-related {
  position: relative;
  z-index: 1;
  padding-block: clamp(30px, 5vw, 58px);
  border-top: 1px solid var(--pd-rule);
  background: rgba(10, 15, 30, 0.55);
}

.pd-related__title {
  margin: 0 0 10px;
  font-family: var(--f-display);
  font-size: clamp(20px, 2.6vw, 26px);
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--c-star);
}

.pd-related__lead {
  max-width: 62ch;
  margin: 0 0 24px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-dust);
}

.pd-related__grid {
  grid-template-columns: minmax(0, 1fr);
}

.pd-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 18px;
  border: 1px solid var(--pd-rule);
  border-radius: var(--r-md);
  background: var(--c-glass-soft);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease),
              background-color var(--dur) var(--ease),
              transform var(--dur) var(--ease);
}

.pd-card:hover,
.pd-card:focus-visible {
  border-color: rgba(70, 229, 255, 0.55);
  background: rgba(70, 229, 255, 0.06);
  transform: translateY(-2px);
  outline: none;
}

.pd-card__idx {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--c-nebula);
}

.pd-card__title {
  font-family: var(--f-display);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--c-star);
}

.pd-card__desc {
  font-size: 14px;
  line-height: 1.72;
  color: var(--c-dust);
}

.pd-card__go {
  margin-top: auto;
  padding-top: 12px;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--c-amber);
}

/* ---------- 页尾 ---------- */
.pd-end {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding-block: clamp(24px, 4vw, 42px);
  border-top: 1px solid var(--pd-rule);
}

.pd-end__note {
  margin: 0;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--c-dust);
}

.pd-end__btn {
  flex: none;
}

/* ---------- 断点 ---------- */
@media (min-width: 700px) {
  .pd-related__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 920px) {
  .pd-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: center;
  }
}

@media (min-width: 1024px) {
  .pd-body {
    grid-template-columns: 236px minmax(0, 1fr);
    align-items: start;
  }

  .pd-toc {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    align-self: start;
  }

  .pd-toc__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }
}

@media (min-width: 1180px) {
  .pd-hero__mark {
    display: block;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .pd-toc__link,
  .page-disclaimer .pd-toc__back,
  .page-disclaimer .pd-card {
    transition: none;
  }

  .page-disclaimer .pd-card:hover,
  .page-disclaimer .pd-card:focus-visible {
    transform: none;
  }
}