.page-disclaimer {
  --usage-rail-width: 302px;
  --usage-ink-soft: rgba(20, 24, 31, .72);
  background: var(--paper);
}

.page-disclaimer .usage-hero {
  position: relative;
  padding-block: clamp(1.25rem, 3.5vw, 2.25rem) clamp(2rem, 5vw, 3.25rem);
}

.page-disclaimer .usage-hero::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 50%;
  width: 100vw;
  transform: translateX(-50%);
  background-image:
    repeating-linear-gradient(0deg, rgba(185, 138, 75, .10) 0 1px, transparent 1px 34px),
    repeating-linear-gradient(90deg, rgba(185, 138, 75, .10) 0 1px, transparent 1px 34px);
  pointer-events: none;
  z-index: 0;
}

.page-disclaimer .usage-hero__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  align-items: end;
}

.page-disclaimer .usage-hero__lead h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 9vw, 4.6rem);
  line-height: 1.02;
  letter-spacing: -.02em;
  color: var(--indigo);
  margin: .35rem 0 .9rem;
}

.page-disclaimer .usage-hero__intro {
  max-width: 46ch;
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--usage-ink-soft);
}

.page-disclaimer .usage-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-top: 1.15rem;
}

.page-disclaimer .usage-hero__figure {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--line);
}

.page-disclaimer .usage-hero__figure .media-frame__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 12 / 7;
  filter: saturate(.94);
}

.page-disclaimer .media-frame__note {
  position: absolute;
  left: .9rem;
  bottom: .9rem;
  background: var(--porcelain);
  border-radius: var(--radius-pill);
  padding: .35rem .8rem;
  font-size: .75rem;
  letter-spacing: .04em;
  color: var(--indigo);
  border: 1px solid var(--line-copper);
}

.page-disclaimer .usage-hints {
  position: relative;
  z-index: 1;
  display: grid;
  gap: .9rem;
  margin-top: clamp(1.75rem, 4vw, 2.75rem);
}

.page-disclaimer .usage-hint {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "num title"
    "num text";
  column-gap: .9rem;
  align-items: start;
  padding: 1.1rem 1.15rem;
  background: var(--porcelain);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  transition: transform var(--dur) ease, box-shadow var(--dur) ease, border-color var(--dur) ease;
}

.page-disclaimer .usage-hint::after {
  content: "";
  position: absolute;
  left: 1.15rem;
  right: 1.15rem;
  bottom: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--orange);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--dur) ease;
}

.page-disclaimer .usage-hint:hover,
.page-disclaimer .usage-hint:focus-within {
  transform: translateY(-4px);
  border-color: var(--line-copper);
  box-shadow: var(--shadow-soft);
}

.page-disclaimer .usage-hint:hover::after,
.page-disclaimer .usage-hint:focus-within::after {
  transform: scaleX(1);
}

.page-disclaimer .usage-hint__num {
  grid-area: num;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 50%;
  background: var(--indigo);
  color: var(--porcelain);
  font-size: .8rem;
  letter-spacing: .02em;
}

.page-disclaimer .usage-hint__title {
  grid-area: title;
  font-family: var(--font-display);
  font-size: 1.02rem;
  color: var(--ink);
  margin: 0 0 .35rem;
  letter-spacing: -.01em;
}

.page-disclaimer .usage-hint__text {
  grid-area: text;
  margin: 0;
  font-size: .92rem;
  line-height: 1.7;
  color: var(--usage-ink-soft);
}

/* ---- 条款主体 ---- */
.page-disclaimer .usage-body {
  display: grid;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  padding-bottom: clamp(2.5rem, 6vw, 4rem);
}

.page-disclaimer .usage-terms {
  display: grid;
  gap: 1rem;
  min-width: 0;
}

.page-disclaimer .term {
  position: relative;
  background: var(--porcelain);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(1.2rem, 3vw, 1.9rem);
  scroll-margin-top: 6.5rem;
  overflow: hidden;
}

.page-disclaimer .term::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 5px;
  background: linear-gradient(180deg, var(--orange), var(--copper));
  opacity: .85;
}

.page-disclaimer .term__head {
  display: flex;
  align-items: baseline;
  gap: .85rem;
  padding-bottom: .75rem;
  margin-bottom: .9rem;
  border-bottom: 1px solid var(--line-copper);
}

.page-disclaimer .term__num {
  color: var(--copper);
  font-size: clamp(1.35rem, 4vw, 1.9rem);
  line-height: 1;
  letter-spacing: -.02em;
}

.page-disclaimer .term__title {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 3.2vw, 1.5rem);
  color: var(--indigo);
  letter-spacing: -.01em;
  margin: 0;
}

.page-disclaimer .term__body {
  font-size: var(--fs-body);
  line-height: 1.8;
  color: var(--usage-ink-soft);
}

.page-disclaimer .term__body p {
  margin: 0 0 .85rem;
}

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

.page-disclaimer .term__body a {
  color: var(--orange-dark);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-disclaimer .term__body a:hover {
  color: var(--indigo);
}

.page-disclaimer .term__list {
  list-style: none;
  margin: 0 0 .9rem;
  padding: 0;
  display: grid;
  gap: .55rem;
}

.page-disclaimer .term__list li {
  position: relative;
  padding-left: 1.3rem;
}

.page-disclaimer .term__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: .5rem;
  height: .5rem;
  border-radius: 50%;
  border: 1.5px solid var(--copper);
}

.page-disclaimer .term__steps {
  list-style: none;
  counter-reset: none;
  margin: 0 0 .9rem;
  padding: .9rem 1rem;
  display: grid;
  gap: .6rem;
  background: rgba(246, 239, 227, .8);
  border-radius: var(--radius-sm);
  border: 1px dashed var(--line-copper);
}

.page-disclaimer .term__steps li {
  display: grid;
  grid-template-columns: 1.5rem 1fr;
  align-items: start;
  gap: .55rem;
}

.page-disclaimer .term__steps .mono {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  background: var(--indigo);
  color: var(--porcelain);
  font-size: .75rem;
}

/* ---- 侧栏 ---- */
.page-disclaimer .usage-rail {
  display: grid;
  gap: .9rem;
  align-content: start;
  min-width: 0;
}

.page-disclaimer .rail-card {
  border-radius: var(--radius-md);
  padding: 1.1rem 1.15rem;
  display: grid;
  gap: .6rem;
  justify-items: start;
}

.page-disclaimer .rail-card--plain {
  background: var(--porcelain);
  border: 1px solid var(--line);
}

.page-disclaimer .rail-card--indigo {
  background: var(--indigo);
  color: var(--porcelain);
  border: 1px solid var(--indigo-deep);
}

.page-disclaimer .rail-card--soft {
  background: var(--orange-soft);
  border: 1px solid rgba(232, 117, 59, .35);
}

.page-disclaimer .rail-card__title {
  font-family: var(--font-display);
  font-size: 1rem;
  letter-spacing: -.01em;
  margin: 0;
  color: var(--indigo);
  line-height: 1.4;
}

.page-disclaimer .rail-card__title--light {
  color: var(--porcelain);
}

.page-disclaimer .rail-card__note {
  margin: 0;
  font-size: .86rem;
  line-height: 1.65;
  color: var(--usage-ink-soft);
}

.page-disclaimer .rail-card--indigo .rail-card__note {
  color: rgba(251, 248, 242, .8);
}

.page-disclaimer .rail-card__mail {
  font-size: .82rem;
  color: var(--indigo);
  word-break: break-all;
}

.page-disclaimer .rail-card__btn {
  margin-top: .2rem;
  font-size: .86rem;
}

.page-disclaimer .rail-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: .1rem;
  width: 100%;
}

.page-disclaimer .rail-link {
  display: grid;
  grid-template-columns: 1.8rem 1fr;
  gap: .4rem;
  align-items: baseline;
  padding: .45rem .35rem;
  border-radius: var(--radius-sm);
  font-size: .88rem;
  line-height: 1.5;
  color: var(--ink);
  text-decoration: none;
  transition: background var(--dur) ease, color var(--dur) ease;
}

.page-disclaimer .rail-link .mono {
  color: var(--copper);
  font-size: .8rem;
}

.page-disclaimer .rail-link:hover,
.page-disclaimer .rail-link:focus-visible {
  background: var(--paper);
  color: var(--orange-dark);
}

@media (min-width: 720px) {
  .page-disclaimer .usage-hints {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-disclaimer .usage-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }
}

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

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

  .page-disclaimer .term {
    padding-inline: 2.4rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .usage-hint,
  .page-disclaimer .rail-link,
  .page-disclaimer .usage-hint::after {
    transition: none;
  }

  .page-disclaimer .usage-hint:hover,
  .page-disclaimer .usage-hint:focus-within {
    transform: none;
  }
}

@media print {
  .page-disclaimer .usage-rail,
  .page-disclaimer .usage-hero__figure {
    display: none;
  }

  .page-disclaimer .usage-body {
    display: block;
  }

  .page-disclaimer .term {
    border: 1px solid #ccc;
    box-shadow: none;
    break-inside: avoid;
    page-break-inside: avoid;
    margin-bottom: 12pt;
  }

  .page-disclaimer .usage-hero::before {
    display: none;
  }
}