/* ===== 使用说明页 · 页面专属样式 ===== */
.page-disclaimer {
  --disc-num-w: 3.25rem;
  --disc-rail-w: 14rem;
  background: var(--sea-900);
  color: var(--pearl);
  overflow-wrap: break-word;
}

/* ---- 首屏：非对称门户 ---- */
.page-disclaimer .disc-hero {
  position: relative;
  isolation: isolate;
  padding-block: clamp(2rem, 5vw, 3.25rem) clamp(2.25rem, 5.5vw, 4.25rem);
  background:
    radial-gradient(115% 85% at 88% 4%, rgba(255, 107, 74, .2), transparent 58%),
    radial-gradient(85% 65% at 6% 100%, rgba(29, 85, 120, .55), transparent 62%),
    linear-gradient(180deg, var(--sea-800) 0%, var(--sea-900) 100%);
  overflow: hidden;
}

.page-disclaimer .disc-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--edge) 22%, transparent 82%);
}

.page-disclaimer .disc-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.75rem, 4vw, 3rem);
  align-items: end;
}

.page-disclaimer .disc-hero__copy .crumbs {
  margin-bottom: clamp(1.4rem, 3vw, 2.15rem);
}

.page-disclaimer .disc-hero__lede {
  margin-top: 1rem;
  max-width: 58ch;
}

.page-disclaimer .disc-hero__media {
  margin: 0;
  filter: saturate(.92);
}

@media (min-width: 900px) {
  .page-disclaimer .disc-hero__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
  }
}

/* ---- 正文：索引 + 条目 ---- */
.page-disclaimer .disc-body {
  padding-block: clamp(2.4rem, 5.5vw, 4.5rem);
  background: linear-gradient(180deg, var(--sea-900) 0%, var(--sea-800) 68%, var(--sea-900) 100%);
}

.page-disclaimer .disc-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.75rem, 4vw, 3.25rem);
}

@media (min-width: 960px) {
  .page-disclaimer .disc-layout {
    grid-template-columns: var(--disc-rail-w) minmax(0, 1fr);
    align-items: start;
  }
}

.page-disclaimer .disc-index {
  padding: 1.1rem 1.15rem;
  border: 1px solid var(--line);
  border-left: 2px solid var(--coral);
  background: rgba(7, 28, 45, .74);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--notch)), calc(100% - var(--notch)) 100%, 0 100%);
}

@media (min-width: 960px) {
  .page-disclaimer .disc-index {
    position: sticky;
    top: calc(var(--header-h, 4.5rem) + 1.5rem);
  }
}

.page-disclaimer .disc-index__title {
  margin: 0 0 .85rem;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--pearl-faint);
}

.page-disclaimer .disc-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .1rem;
}

.page-disclaimer .disc-index__list a {
  display: flex;
  gap: .7rem;
  padding: .5rem 0;
  color: var(--pearl-dim);
  text-decoration: none;
  font-size: .95rem;
  line-height: 1.55;
  border-bottom: 1px solid transparent;
  transition: color .2s ease, border-color .2s ease, transform .2s ease;
}

.page-disclaimer .disc-index__list a:hover,
.page-disclaimer .disc-index__list a:focus-visible {
  color: var(--pearl);
  border-bottom-color: var(--edge);
  transform: translateX(3px);
}

.page-disclaimer .disc-index__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: .76rem;
  line-height: 1.7;
  color: var(--coral);
}

.page-disclaimer .disc-clauses {
  display: grid;
  gap: 0;
  min-width: 0;
}

.page-disclaimer .clause {
  padding-block: clamp(1.6rem, 3.2vw, 2.4rem);
  border-top: 1px solid var(--line);
}

.page-disclaimer .clause:first-child {
  border-top-color: var(--edge);
}

.page-disclaimer .clause:last-child {
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .clause__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: .4rem .9rem;
  margin-bottom: .85rem;
}

@media (min-width: 640px) {
  .page-disclaimer .clause__head {
    grid-template-columns: var(--disc-num-w) minmax(0, 1fr);
    align-items: start;
  }
}

.page-disclaimer .clause__num {
  font-family: var(--font-mono);
  font-size: 1rem;
  line-height: 1.7;
  letter-spacing: .1em;
  color: var(--coral);
}

.page-disclaimer .clause__num::after {
  content: "";
  display: block;
  width: 1.5rem;
  height: 2px;
  margin-top: .35rem;
  background: linear-gradient(90deg, var(--coral), transparent);
}

.page-disclaimer .clause__title {
  margin: 0;
}

.page-disclaimer .clause__body {
  display: grid;
  gap: .9rem;
  max-width: 68ch;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--pearl-dim);
}

@media (min-width: 640px) {
  .page-disclaimer .clause__body {
    margin-left: calc(var(--disc-num-w) + .9rem);
  }
}

.page-disclaimer .clause__body p {
  margin: 0;
}

.page-disclaimer .clause__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .6rem;
}

.page-disclaimer .clause__list li {
  position: relative;
  padding-left: 1.5rem;
  line-height: 1.8;
}

.page-disclaimer .clause__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .8em;
  width: .8rem;
  height: 2px;
  background: var(--coral);
  opacity: .85;
}

/* ---- 联系区：门形面板 ---- */
.page-disclaimer .disc-help {
  padding-block: clamp(2.4rem, 5.5vw, 4.5rem);
  background: linear-gradient(180deg, var(--sea-900), var(--sea-800));
}

.page-disclaimer .disc-help__panel {
  padding: clamp(1.6rem, 4vw, 2.75rem);
}

.page-disclaimer .disc-help__lede {
  margin-top: .85rem;
  max-width: 54ch;
}

.page-disclaimer .disc-help__grid {
  margin-top: clamp(1.5rem, 3vw, 2.25rem);
  gap: clamp(1.1rem, 2.5vw, 1.75rem);
}

.page-disclaimer .disc-help__item {
  padding-top: 1rem;
  border-top: 1px solid var(--edge);
  min-width: 0;
}

.page-disclaimer .disc-help__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .2em;
  color: var(--coral);
}

.page-disclaimer .disc-help__value {
  margin: .5rem 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.02rem, 1.6vw, 1.18rem);
  line-height: 1.6;
  color: var(--pearl);
}

.page-disclaimer .disc-help__note {
  margin: .35rem 0 0;
  font-size: .85rem;
  line-height: 1.65;
  color: var(--pearl-faint);
}

.page-disclaimer .disc-help__foot {
  margin: clamp(1.5rem, 3vw, 2rem) 0 0;
  padding-top: 1.1rem;
  border-top: 1px solid var(--line);
  font-size: .95rem;
  line-height: 1.8;
  color: var(--pearl-dim);
}

.page-disclaimer .disc-help__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .85rem;
  margin-top: 1.25rem;
}