.page-disclaimer {
  --dc-ink: var(--c-paper);
  --dc-soft: var(--c-mist);
  background:
    radial-gradient(120% 70% at 88% -10%, rgba(127, 209, 224, 0.10), transparent 62%),
    linear-gradient(180deg, rgba(10, 46, 92, 0.42) 0%, rgba(6, 24, 47, 0.72) 100%);
  color: var(--dc-ink);
  font-size: 1rem;
  line-height: 1.65;
}

.page-disclaimer a:focus-visible,
.page-disclaimer button:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: 3px;
}

.page-disclaimer .breadcrumbs {
  padding-top: 18px;
}

/* ---------- 首屏 ---------- */
.page-disclaimer .usage-hero {
  padding: 22px 0 40px;
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .usage-hero__grid {
  display: grid;
  gap: 26px;
}

.page-disclaimer .usage-hero__title {
  margin: 12px 0 0;
  font-family: var(--font-sans);
  font-size: clamp(1.85rem, 7vw, 3.3rem);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.012em;
  color: var(--c-paper);
  text-wrap: balance;
}

.page-disclaimer .usage-hero__lead {
  margin: 16px 0 0;
  max-width: 36em;
  color: var(--dc-soft);
  font-size: 0.98rem;
}

.page-disclaimer .usage-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  font-size: 0.76rem;
  letter-spacing: 0.09em;
  color: var(--dc-soft);
}

.page-disclaimer .usage-hero__meta-item {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
}

.page-disclaimer .usage-hero__meta-item .num {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--c-amber);
  letter-spacing: 0;
}

.page-disclaimer .usage-hero__media {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  background: linear-gradient(200deg, rgba(58, 70, 84, 0.55), rgba(6, 24, 47, 0.92));
  box-shadow: var(--shadow);
}

.page-disclaimer .usage-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 4;
  object-fit: cover;
  filter: saturate(0.9);
}

.page-disclaimer .usage-hero__caption {
  padding: 9px 12px;
  font-size: 0.7rem;
  letter-spacing: 0.16em;
  color: var(--dc-soft);
  border-top: 1px solid var(--line);
}

/* ---------- 条款区 ---------- */
.page-disclaimer .usage-body {
  padding: 38px 0 6px;
}

.page-disclaimer .usage-body__grid {
  display: grid;
  gap: 26px;
}

.page-disclaimer .usage-index {
  padding-top: 14px;
  border-top: 1px solid var(--line-strong);
}

.page-disclaimer .usage-index__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  color: var(--dc-soft);
}

.page-disclaimer .usage-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-disclaimer .usage-index__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 8px 10px 0;
  color: var(--dc-soft);
  font-size: 0.9rem;
  text-decoration: none;
  border-bottom: 1px solid rgba(201, 210, 217, 0.10);
  transition: color 0.25s var(--ease), padding-left 0.25s var(--ease), background-color 0.25s var(--ease);
}

.page-disclaimer .usage-index__link:hover {
  padding-left: 8px;
  color: var(--c-paper);
  background-color: rgba(127, 209, 224, 0.07);
}

.page-disclaimer .usage-index__num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--c-amber);
}

.page-disclaimer .usage-clauses {
  display: grid;
  gap: 18px;
}

.page-disclaimer .usage-clauses__head {
  display: grid;
  gap: 7px;
  padding-bottom: 4px;
}

.page-disclaimer .usage-clauses__title {
  margin: 0;
  font-size: clamp(1.3rem, 4.2vw, 1.75rem);
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--c-paper);
}

.page-disclaimer .usage-clauses__lead {
  margin: 0;
  color: var(--dc-soft);
  font-size: 0.9rem;
}

.page-disclaimer .clause {
  --accent: var(--c-cyan);
  position: relative;
  padding: 24px 20px 26px;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: linear-gradient(165deg, rgba(58, 70, 84, 0.34), rgba(6, 24, 47, 0.66));
  box-shadow: var(--shadow);
  scroll-margin-top: calc(var(--header-h) + 26px);
}

.page-disclaimer .clause::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), rgba(201, 210, 217, 0.06) 72%);
}

.page-disclaimer .clause--amber { --accent: var(--c-amber); }
.page-disclaimer .clause--moss { --accent: var(--c-moss); }
.page-disclaimer .clause--clay { --accent: var(--c-clay); }

.page-disclaimer .clause__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 10px;
}

.page-disclaimer .clause__num {
  font-family: var(--font-mono);
  font-size: 1.45rem;
  line-height: 1;
  color: var(--accent);
}

.page-disclaimer .clause__title {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--c-paper);
}

.page-disclaimer .clause__intro {
  margin: 0 0 14px;
  font-size: 0.94rem;
  color: rgba(242, 237, 228, 0.86);
}

.page-disclaimer .clause__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-disclaimer .clause__list li {
  position: relative;
  padding-left: 17px;
  font-size: 0.91rem;
  line-height: 1.64;
  color: var(--dc-soft);
}

.page-disclaimer .clause__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 8px;
  height: 1px;
  background: var(--accent);
  opacity: 0.85;
}

.page-disclaimer .clause__link {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(127, 209, 224, 0.45);
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-disclaimer .clause__link:hover {
  color: var(--c-paper);
  border-color: var(--c-amber);
}

/* ---------- 联系收口 ---------- */
.page-disclaimer .usage-contact {
  margin-top: 44px;
  padding: 38px 0 54px;
  border-top: 1px solid var(--line-strong);
  background:
    linear-gradient(180deg, rgba(10, 46, 92, 0.00) 0%, rgba(6, 24, 47, 0.82) 70%),
    radial-gradient(90% 120% at 12% 100%, rgba(184, 107, 75, 0.16), transparent 66%);
}

.page-disclaimer .usage-contact__inner {
  display: grid;
  gap: 26px;
}

.page-disclaimer .usage-contact__title {
  margin: 10px 0 0;
  font-size: clamp(1.28rem, 4.4vw, 1.8rem);
  font-weight: 800;
  line-height: 1.28;
  color: var(--c-paper);
  text-wrap: balance;
}

.page-disclaimer .usage-contact__body {
  margin: 12px 0 0;
  max-width: 38em;
  color: var(--dc-soft);
  font-size: 0.93rem;
}

.page-disclaimer .usage-contact__mail {
  display: inline-block;
  margin-top: 18px;
  padding-bottom: 3px;
  font-family: var(--font-mono);
  font-size: clamp(0.86rem, 3.2vw, 1.12rem);
  color: var(--c-amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(245, 166, 35, 0.5);
  word-break: break-all;
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease);
}

.page-disclaimer .usage-contact__mail:hover {
  color: var(--c-paper);
  border-color: var(--c-cyan);
}

.page-disclaimer .usage-contact__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  align-content: start;
  gap: 1px;
}

.page-disclaimer .usage-contact__links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 13px 2px;
  font-size: 0.94rem;
  color: var(--c-paper);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color 0.22s var(--ease), padding-left 0.22s var(--ease);
}

.page-disclaimer .usage-contact__links a::after {
  content: "→";
  color: var(--c-cyan);
  font-family: var(--font-mono);
}

.page-disclaimer .usage-contact__links a:hover {
  padding-left: 8px;
  color: var(--c-amber);
}

/* ---------- 断点 ---------- */
@media (min-width: 720px) {
  .page-disclaimer .usage-hero {
    padding: 26px 0 52px;
  }

  .page-disclaimer .usage-hero__media img {
    aspect-ratio: 5 / 6;
  }

  .page-disclaimer .clause {
    padding: 28px 28px 30px;
  }

  .page-disclaimer .clause__title {
    font-size: 1.2rem;
  }

  .page-disclaimer .usage-contact__links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 26px;
  }
}

@media (min-width: 960px) {
  .page-disclaimer .usage-hero__grid {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    align-items: end;
    gap: 46px;
  }

  .page-disclaimer .usage-hero__media {
    margin-bottom: -18px;
  }

  .page-disclaimer .usage-body__grid {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-disclaimer .usage-index {
    position: sticky;
    top: calc(var(--header-h) + 22px);
  }

  .page-disclaimer .usage-contact__inner {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 0.6fr);
    gap: 54px;
    align-items: start;
  }

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

@media (min-width: 1220px) {
  .page-disclaimer .usage-body__grid {
    grid-template-columns: 224px minmax(0, 1fr);
    gap: 62px;
  }

  .page-disclaimer .usage-clauses {
    gap: 20px;
  }

  .page-disclaimer .clause {
    padding: 30px 34px 32px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer *,
  .page-disclaimer *::before,
  .page-disclaimer *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}