.page-disclaimer {
  --usage-line: 1px solid var(--lb-line);
  --usage-tint: rgba(43, 227, 192, 0.08);
  padding-bottom: clamp(56px, 8vw, 104px);
}

.page-disclaimer .lb-crumb {
  margin-top: clamp(16px, 3vw, 28px);
}

/* ---------- 页首 ---------- */
.page-disclaimer .usage-hero {
  margin-top: clamp(18px, 3vw, 34px);
  border-top: var(--usage-line);
  padding-top: clamp(30px, 6vw, 68px);
}

.page-disclaimer .usage-hero__title {
  margin: 10px 0 0;
  font-size: clamp(46px, 11vw, 132px);
  line-height: 0.92;
  font-weight: 900;
  letter-spacing: -0.045em;
  color: var(--lb-white);
}

.page-disclaimer .usage-hero__lede {
  margin-top: clamp(18px, 3vw, 28px);
  max-width: 62ch;
  font-size: clamp(16px, 1.9vw, 20px);
  line-height: 1.72;
  color: var(--lb-mist);
}

.page-disclaimer .usage-hero__facts {
  margin: clamp(30px, 5vw, 52px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  border-top: var(--usage-line);
}

.page-disclaimer .usage-fact {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 0;
  border-bottom: var(--usage-line);
}

.page-disclaimer .usage-fact__num {
  font-family: var(--lb-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(26px, 6vw, 40px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--lb-cyan);
}

.page-disclaimer .usage-fact__label {
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--lb-mist);
}

.page-disclaimer .usage-hero__media {
  margin-top: clamp(30px, 5vw, 56px);
}

.page-disclaimer .usage-hero__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: 50% 38%;
  border: var(--usage-line);
  border-radius: var(--lb-radius);
  filter: saturate(0.85) contrast(1.05);
}

/* ---------- 条款目录 ---------- */
.page-disclaimer .usage-index {
  margin-top: clamp(44px, 7vw, 80px);
}

.page-disclaimer .usage-index__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .usage-index__list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: var(--usage-line);
  border-radius: var(--lb-radius);
  color: var(--lb-mist);
  font-size: 14px;
  line-height: 1;
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.page-disclaimer .usage-index__list a:hover,
.page-disclaimer .usage-index__list a:focus-visible {
  color: var(--lb-white);
  border-color: var(--lb-cyan);
  background: var(--usage-tint);
}

.page-disclaimer .usage-index__no {
  font-family: var(--lb-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--lb-cyan);
}

/* ---------- 条款正文 ---------- */
.page-disclaimer .usage-body {
  margin-top: clamp(28px, 4vw, 48px);
}

.page-disclaimer .usage-clause {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  padding: clamp(28px, 4.5vw, 52px) 0;
  border-top: var(--usage-line);
  scroll-margin-top: 96px;
}

.page-disclaimer .usage-clause__aside {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.page-disclaimer .usage-clause__no {
  font-family: var(--lb-mono);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--lb-cyan);
}

.page-disclaimer .usage-clause__title {
  margin: 0;
  font-size: clamp(19px, 2.6vw, 25px);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--lb-white);
}

.page-disclaimer .usage-clause__main {
  max-width: 66ch;
}

.page-disclaimer .usage-clause__main p {
  margin: 0 0 16px;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.78;
  color: var(--lb-mist);
}

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

.page-disclaimer .usage-clause__main strong {
  color: var(--lb-white);
  font-weight: 700;
}

.page-disclaimer .usage-list {
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
}

.page-disclaimer .usage-list li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 10px;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.78;
  color: var(--lb-mist);
}

.page-disclaimer .usage-list li:last-child {
  margin-bottom: 0;
}

.page-disclaimer .usage-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 10px;
  height: 1px;
  background: var(--lb-cyan);
}

/* ---------- 举例折叠 ---------- */
.page-disclaimer .usage-note {
  margin-top: 20px;
  border: var(--usage-line);
  border-radius: var(--lb-radius);
  background: var(--lb-turf);
  overflow: hidden;
}

.page-disclaimer .usage-note > summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  cursor: pointer;
  list-style: none;
  font-size: 14px;
  line-height: 1.5;
  color: var(--lb-cyan-soft);
}

.page-disclaimer .usage-note > summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer .usage-note > summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--lb-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--lb-cyan);
}

.page-disclaimer .usage-note[open] > summary::after {
  content: "－";
}

.page-disclaimer .usage-note__body {
  padding: 16px 18px 18px;
  border-top: var(--usage-line);
  font-size: 15px;
  line-height: 1.78;
  color: var(--lb-mist);
}

/* ---------- 延伸入口 ---------- */
.page-disclaimer .usage-more {
  margin-top: clamp(44px, 7vw, 84px);
  padding-top: clamp(26px, 4vw, 44px);
  border-top: var(--usage-line);
}

.page-disclaimer .usage-more__title {
  margin: 10px 0 0;
  font-size: clamp(22px, 3.4vw, 32px);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--lb-white);
}

.page-disclaimer .usage-more__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: clamp(20px, 3vw, 32px);
  background: var(--lb-line);
  border: var(--usage-line);
}

.page-disclaimer .usage-more__link {
  display: block;
  padding: 20px 22px;
  background: var(--lb-night);
  text-decoration: none;
  transition: background-color 0.2s ease;
}

.page-disclaimer .usage-more__link:hover,
.page-disclaimer .usage-more__link:focus-visible {
  background: var(--lb-turf);
}

.page-disclaimer .usage-more__label {
  display: block;
  margin-bottom: 8px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--lb-amber);
}

.page-disclaimer .usage-more__name {
  display: block;
  margin-bottom: 6px;
  font-size: 18px;
  font-weight: 700;
  color: var(--lb-white);
}

.page-disclaimer .usage-more__desc {
  display: block;
  font-size: 14px;
  line-height: 1.7;
  color: var(--lb-mist);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .page-disclaimer .usage-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-disclaimer .usage-fact {
    padding: 0 0 0 22px;
    border-bottom: 0;
    border-left: var(--usage-line);
  }

  .page-disclaimer .usage-fact:first-child {
    padding-left: 0;
    border-left: 0;
  }

  .page-disclaimer .usage-more__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-disclaimer .usage-clause {
    grid-template-columns: minmax(170px, 220px) minmax(0, 1fr);
    gap: clamp(32px, 5vw, 76px);
  }

  .page-disclaimer .usage-clause__aside {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
}