.page-disclaimer {
  --dc-index-w: 216px;
  --dc-col-gap: clamp(1.75rem, 5vw, 4.25rem);
  --dc-rule: rgba(31, 107, 82, 0.45);
  --dc-panel: rgba(20, 73, 58, 0.46);
  --dc-panel-soft: rgba(20, 73, 58, 0.18);
  --dc-sticky-top: 1.5rem;

  position: relative;
  isolation: isolate;
}

.page-disclaimer::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(900px 460px at 94% -4%, rgba(61, 220, 255, 0.09), transparent 64%),
    radial-gradient(640px 420px at -8% 8%, rgba(255, 107, 26, 0.08), transparent 62%);
}

.page-disclaimer a:focus-visible,
.page-disclaimer .btn:focus-visible {
  outline: 2px solid var(--volt);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}

/* ---------- 标题区 ---------- */
.page-disclaimer .disclaimer-head {
  display: grid;
  gap: 1.05rem;
  padding-top: clamp(1.9rem, 5.5vw, 3.6rem);
  padding-bottom: clamp(1.5rem, 4vw, 2.4rem);
  border-bottom: 1px solid var(--dc-rule);
}

.page-disclaimer .disclaimer-head h1 {
  margin: 0;
  max-width: 22ch;
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 7vw, 3.9rem);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -0.015em;
  color: var(--warm);
}

.page-disclaimer .disclaimer-lede {
  margin: 0;
  max-width: 60ch;
  font-size: clamp(1rem, 1.6vw, 1.1rem);
  line-height: 1.85;
  color: var(--mist);
}

.page-disclaimer .disclaimer-version {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.4rem;
  margin: 0;
  padding-top: 0.85rem;
  border-top: 1px dashed var(--dc-rule);
  font-family: var(--font-mono);
  font-size: 0.73rem;
  letter-spacing: 0.08em;
  color: var(--flame-mist);
}

.page-disclaimer .disclaimer-head .media-frame {
  width: 100%;
  margin: 0.35rem 0 0;
  aspect-ratio: 3 / 2;
  border: 1px solid var(--dc-rule);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: linear-gradient(135deg, rgba(20, 73, 58, 0.7), rgba(6, 26, 20, 0.92));
}

.page-disclaimer .disclaimer-head .media-frame img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 目录 + 正文双栏 ---------- */
.page-disclaimer .disclaimer-body {
  display: grid;
  align-items: start;
  gap: clamp(1.5rem, 4vw, 2.75rem);
  padding-top: clamp(1.7rem, 4.2vw, 2.8rem);
  padding-bottom: clamp(2.6rem, 6vw, 4.5rem);
}

.page-disclaimer .disclaimer-index {
  padding: 1.05rem 1.1rem 1.15rem;
  border: 1px solid var(--dc-rule);
  border-radius: var(--r-md);
  background: linear-gradient(160deg, var(--dc-panel), var(--dc-panel-soft));
}

.page-disclaimer .disclaimer-index__title {
  margin: 0 0 0.85rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--dc-rule);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--flame-mist);
}

.page-disclaimer .disclaimer-index__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.12rem;
}

.page-disclaimer .disclaimer-index__list a {
  display: grid;
  grid-template-columns: 2.05rem minmax(0, 1fr);
  gap: 0.5rem;
  align-items: baseline;
  padding: 0.5rem;
  border-radius: var(--r-sm);
  color: var(--warm);
  font-size: 0.93rem;
  line-height: 1.45;
  text-decoration: none;
  transition: background-color 180ms var(--ease), transform 180ms var(--ease);
}

.page-disclaimer .disclaimer-index__list a:hover {
  background: rgba(255, 107, 26, 0.13);
  transform: translateX(3px);
}

.page-disclaimer .disclaimer-index__num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--volt);
}

.page-disclaimer .disclaimer-index__back {
  display: block;
  margin-top: 0.9rem;
  padding-top: 0.8rem;
  border-top: 1px dashed var(--dc-rule);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--volt);
  text-decoration: none;
}

.page-disclaimer .disclaimer-index__back:hover {
  color: var(--flame-mist);
}

/* ---------- 条款正文 ---------- */
.page-disclaimer .disclaimer-doc {
  min-width: 0;
  max-width: 66ch;
}

.page-disclaimer .disclaimer-doc a {
  color: var(--volt);
  text-decoration-line: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.24em;
  transition: color 160ms var(--ease);
}

.page-disclaimer .disclaimer-doc a:hover {
  color: var(--flame-mist);
}

.page-disclaimer .clause {
  padding-block: clamp(1.35rem, 3.4vw, 2.1rem);
  border-bottom: 1px solid var(--dc-rule);
  scroll-margin-top: calc(var(--bar-h) + 1.25rem);
}

.page-disclaimer .clause:first-of-type {
  padding-top: 0.4rem;
}

.page-disclaimer .clause__head {
  display: flex;
  align-items: baseline;
  gap: 0.8rem;
  margin-bottom: 0.85rem;
}

.page-disclaimer .clause__num {
  flex: none;
  padding: 0.15rem 0.45rem;
  border: 1px solid rgba(255, 107, 26, 0.42);
  border-radius: var(--r-sm);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  color: var(--flame);
}

.page-disclaimer .clause__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3.6vw, 1.85rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--warm);
}

.page-disclaimer .clause__body > p {
  margin: 0 0 0.95rem;
  line-height: 1.85;
  color: rgba(246, 242, 233, 0.87);
}

.page-disclaimer .clause__body > p:last-child {
  margin-bottom: 0;
}

.page-disclaimer .clause__list {
  counter-reset: clause-item;
  margin: 0 0 0.95rem;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.65rem;
}

.page-disclaimer .clause__list li {
  counter-increment: clause-item;
  position: relative;
  padding-left: 2.3rem;
  line-height: 1.8;
  color: rgba(246, 242, 233, 0.85);
}

.page-disclaimer .clause__list li::before {
  content: counter(clause-item, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0.34em;
  font-family: var(--font-mono);
  font-size: 0.71rem;
  letter-spacing: 0.06em;
  color: var(--flame);
}

.page-disclaimer .clause__trace {
  margin: 0;
  padding-top: 0.7rem;
  border-top: 1px dashed var(--dc-rule);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-disclaimer .clause__trace span {
  margin-right: 0.6rem;
  color: var(--volt);
}

/* ---------- 页尾提示 ---------- */
.page-disclaimer .disclaimer-footnote {
  display: grid;
  gap: 1rem;
  margin-top: clamp(1.8rem, 4vw, 2.6rem);
  padding: clamp(1.1rem, 3vw, 1.7rem);
  border: 1px solid var(--dc-rule);
  border-left: 3px solid var(--flame);
  border-radius: var(--r-md);
  background: linear-gradient(120deg, rgba(255, 107, 26, 0.11), rgba(61, 220, 255, 0.07));
}

.page-disclaimer .disclaimer-footnote p {
  margin: 0;
  line-height: 1.8;
  color: var(--warm);
}

.page-disclaimer .disclaimer-footnote .btn {
  justify-self: start;
}

/* ---------- 断点 ---------- */
@media (min-width: 640px) {
  .page-disclaimer .disclaimer-footnote {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-disclaimer .disclaimer-body {
    grid-template-columns: var(--dc-index-w) minmax(0, 1fr);
    column-gap: var(--dc-col-gap);
  }

  .page-disclaimer .disclaimer-index {
    position: sticky;
    top: var(--dc-sticky-top);
  }

  .page-disclaimer .disclaimer-head h1 {
    max-width: 24ch;
  }
}

@media (min-width: 1280px) {
  .page-disclaimer {
    --dc-index-w: 248px;
  }
}