.page-disclaimer {
  --disc-num-w: 3rem;
  --disc-gap: 0.85rem;
  padding-bottom: clamp(3rem, 8vw, 5rem);
}

@media (min-width: 768px) {
  .page-disclaimer {
    --disc-num-w: 4.5rem;
    --disc-gap: 1.5rem;
  }
}

.page-disclaimer .crumb {
  padding-block: clamp(1.25rem, 3vw, 1.75rem) 0.5rem;
}

/* ---------- 首屏 ---------- */

.page-disclaimer .doc-hero {
  position: relative;
  margin-top: clamp(1.5rem, 4vw, 2.5rem);
  padding-bottom: clamp(2rem, 5vw, 3rem);
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .doc-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 120px 120px;
  opacity: 0.22;
  -webkit-mask-image: radial-gradient(ellipse at 22% 38%, #000 0%, transparent 72%);
  mask-image: radial-gradient(ellipse at 22% 38%, #000 0%, transparent 72%);
  pointer-events: none;
}

.page-disclaimer .doc-hero__inner {
  position: relative;
  z-index: 1;
}

.page-disclaimer .doc-hero__kicker {
  display: inline-block;
  margin: 0 0 1.1rem;
  padding: 0.32rem 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--gold);
  border: 1px solid var(--gold);
}

.page-disclaimer .doc-hero__title {
  margin: 0;
  max-width: 24ch;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(1.8rem, 5.2vw, 3.25rem);
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-disclaimer .doc-hero__intro {
  margin: 1.25rem 0 0;
  max-width: 60ch;
  font-size: clamp(1rem, 2vw, 1.08rem);
  line-height: 1.85;
  color: var(--muted);
}

.page-disclaimer .doc-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem 2.25rem;
  margin: 1.9rem 0 0;
  padding: 1.05rem 0 0;
  list-style: none;
  border-top: 1px dashed var(--line);
}

.page-disclaimer .doc-hero__meta li {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.page-disclaimer .doc-hero__meta-key {
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.18em;
  color: var(--muted);
}

.page-disclaimer .doc-hero__meta-val {
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--ink);
}

.page-disclaimer .doc-hero__figure {
  margin: clamp(2rem, 5vw, 3rem) 0 0;
}

.page-disclaimer .doc-hero__frame {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel);
}

@media (min-width: 768px) {
  .page-disclaimer .doc-hero__frame {
    aspect-ratio: 16 / 6;
  }
}

.page-disclaimer .doc-hero__frame img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

.page-disclaimer .doc-hero__figure .figure__cap {
  margin-top: 0.75rem;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 主体：索引 + 条款 ---------- */

.page-disclaimer .doc-shell {
  display: grid;
  gap: clamp(2rem, 5vw, 3rem);
  padding-top: clamp(2.5rem, 6vw, 4rem);
}

@media (min-width: 1024px) {
  .page-disclaimer .doc-shell {
    grid-template-columns: 15rem minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.5rem);
    align-items: start;
  }

  .page-disclaimer .doc-rail {
    position: sticky;
    top: 1.5rem;
  }
}

.page-disclaimer .doc-toc {
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-disclaimer .doc-toc__trigger {
  width: 100%;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
}

.page-disclaimer .doc-toc__label {
  font-family: var(--font-serif);
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--ink);
}

.page-disclaimer .doc-toc__count {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-disclaimer .doc-toc__list {
  list-style: none;
  margin: 0;
  padding: 0.4rem 0 0.6rem;
  counter-reset: toc;
}

.page-disclaimer .doc-toc__link {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  line-height: 1.5;
  color: var(--muted);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-disclaimer .doc-toc__link::before {
  counter-increment: toc;
  content: counter(toc, decimal-leading-zero);
  font-family: var(--font-serif);
  font-size: 0.72rem;
  color: var(--violet-soft);
}

.page-disclaimer .doc-toc__link:hover,
.page-disclaimer .doc-toc__link:focus-visible {
  color: var(--ink);
  background: var(--float);
}

.page-disclaimer .doc-toc__link.is-active,
.page-disclaimer .doc-toc__link[aria-current] {
  color: var(--ink);
  border-left-color: var(--cyan);
}

/* ---------- 条款区块 ---------- */

.page-disclaimer .doc-section {
  margin-bottom: clamp(2.25rem, 5vw, 3.25rem);
}

.page-disclaimer .doc-section:last-child {
  margin-bottom: 0;
}

.page-disclaimer .doc-section__head {
  display: grid;
  grid-template-columns: var(--disc-num-w) minmax(0, 1fr);
  gap: var(--disc-gap);
  align-items: center;
  padding-block: 0.85rem;
  border-top: 2px solid var(--violet);
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .doc-section__num {
  display: inline-grid;
  place-items: center;
  justify-self: start;
  width: 2.5rem;
  height: 2.5rem;
  background: var(--violet);
  color: #FFFFFF;
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-disclaimer .doc-section__title {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 800;
  font-size: clamp(1.22rem, 2.6vw, 1.62rem);
  line-height: 1.4;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.page-disclaimer .clauses {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-disclaimer .clause {
  display: grid;
  grid-template-columns: var(--disc-num-w) minmax(0, 1fr);
  gap: var(--disc-gap);
  padding-block: 1.15rem;
  border-bottom: 1px dashed var(--line);
}

.page-disclaimer .clause:last-child {
  border-bottom: none;
  padding-bottom: 0.25rem;
}

.page-disclaimer .clause__num {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--gold);
  padding-top: 0.2rem;
}

.page-disclaimer .clause__text {
  margin: 0;
  max-width: 62ch;
  font-size: 1rem;
  line-height: 1.88;
  color: var(--ink);
}

/* ---------- 页尾更新提示 ---------- */

.page-disclaimer .doc-update {
  margin-top: clamp(2.5rem, 6vw, 4rem);
  padding-block: clamp(2.25rem, 5vw, 3.5rem);
  background: var(--paper);
  color: var(--print);
  border-top: 3px solid var(--print);
  border-bottom: 3px solid var(--print);
}

.page-disclaimer .doc-update__inner {
  display: grid;
  gap: 1.1rem;
  justify-items: start;
}

.page-disclaimer .doc-update__label {
  transform: rotate(-1.5deg);
  border-color: var(--print);
  color: var(--print);
}

.page-disclaimer .doc-update__title {
  margin: 0.25rem 0 0;
  max-width: 24ch;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.35rem, 3.2vw, 2rem);
  line-height: 1.35;
  color: var(--print);
}

.page-disclaimer .doc-update__text {
  margin: 0;
  max-width: 62ch;
  font-size: 1rem;
  line-height: 1.86;
  color: var(--print);
  opacity: 0.84;
}

.page-disclaimer .doc-update__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem 1.75rem;
  margin-top: 0.5rem;
  padding-top: 1.1rem;
  border-top: 1px solid rgba(16, 16, 20, 0.24);
  width: 100%;
}

.page-disclaimer .doc-update__link {
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--print);
  text-decoration: none;
  border-bottom: 1px solid var(--print);
  padding-bottom: 0.1rem;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-disclaimer .doc-update__link:hover,
.page-disclaimer .doc-update__link:focus-visible {
  color: var(--violet);
  border-bottom-color: var(--violet);
}

/* ---------- 动效降级 ---------- */

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