.page-disclaimer {
  overflow-x: clip;
}

.page-disclaimer .usage-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(18px, 4vw, 38px) 0 0;
  background:
    radial-gradient(120% 95% at 88% 0%, rgba(36, 21, 63, 0.92), transparent 62%),
    linear-gradient(180deg, rgba(14, 22, 34, 0.95), rgba(7, 9, 15, 0) 88%);
}

.page-disclaimer .usage-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.75;
  background-image:
    repeating-linear-gradient(115deg, rgba(49, 230, 255, 0.08) 0 1px, transparent 1px 26px),
    repeating-linear-gradient(0deg, rgba(242, 255, 58, 0.05) 0 1px, transparent 1px 18px);
}

.page-disclaimer .usage-hero > .wrap {
  position: relative;
}

.page-disclaimer .usage-hero .breadcrumbs {
  margin-bottom: clamp(14px, 2.5vw, 22px);
}

.page-disclaimer .usage-hero h1 {
  margin: 10px 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.85rem, 6vw, 3.35rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--white);
  max-width: 20ch;
}

.page-disclaimer .usage-hero__lede {
  margin: 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: clamp(0.98rem, 2.2vw, 1.08rem);
  line-height: 1.78;
}

.page-disclaimer .usage-hero__meta {
  margin: 18px 0 0;
  color: var(--cyan);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.page-disclaimer .usage-banner {
  margin: clamp(20px, 4vw, 34px) 0 0;
  border: 1px solid var(--line);
  background: var(--panel);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-disclaimer .usage-banner .media__img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-disclaimer .usage-banner .media__cap {
  margin: 0;
  padding: 10px 16px;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--muted);
  border-top: 1px solid var(--line);
  background: rgba(7, 9, 15, 0.6);
}

.page-disclaimer .usage-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 4vw, 44px);
  padding: clamp(26px, 5vw, 62px) 0 clamp(46px, 8vw, 96px);
}

/* 条款索引：移动端为横向滑动的编号胶囊，桌面端固定在右侧 */
.page-disclaimer .usage-index {
  order: 1;
  min-width: 0;
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
  background: var(--panel);
  padding: 14px 14px 10px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
}

.page-disclaimer .usage-index__title {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--yellow);
}

.page-disclaimer .index-list {
  list-style: none;
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-disclaimer .index-list > li {
  flex: 0 0 auto;
}

.page-disclaimer .index-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 11px;
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  line-height: 1.4;
  white-space: nowrap;
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.page-disclaimer .index-num {
  color: var(--cyan);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.page-disclaimer .index-link:hover,
.page-disclaimer .index-link:focus-visible {
  color: var(--white);
  border-color: var(--cyan);
  background: var(--hover);
}

/* 条款正文 */
.page-disclaimer .usage-doc {
  order: 2;
  min-width: 0;
}

.page-disclaimer .clause {
  padding: clamp(20px, 3.6vw, 34px) 0;
  border-top: 1px solid var(--line);
}

.page-disclaimer .clause:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-disclaimer .clause__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 12px;
}

.page-disclaimer .clause__num {
  flex: 0 0 auto;
  font-size: clamp(1rem, 2.6vw, 1.35rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  color: transparent;
  background: linear-gradient(180deg, var(--yellow), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
}

.page-disclaimer .clause__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.15rem, 3vw, 1.6rem);
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-disclaimer .clause__body p {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.8;
}

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

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

.page-disclaimer .clause__body a:hover {
  color: var(--yellow);
}

.page-disclaimer .clause__list {
  list-style: none;
  margin: 14px 0 14px;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-disclaimer .clause__list li {
  position: relative;
  padding-left: 20px;
  color: var(--muted);
  font-size: 0.96rem;
  line-height: 1.78;
}

.page-disclaimer .clause__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 9px;
  height: 2px;
  background: var(--cyan);
}

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

.page-disclaimer .clause__note {
  margin-top: 14px;
  padding-left: 14px;
  border-left: 2px solid var(--line);
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.75;
}

/* 联系方式条 */
.page-disclaimer .usage-contact {
  margin-top: clamp(18px, 3vw, 28px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
  padding: clamp(18px, 3.5vw, 30px);
  border: 1px solid var(--line);
  border-top: 3px solid var(--yellow);
  background: linear-gradient(155deg, rgba(36, 21, 63, 0.62), var(--panel) 62%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-disclaimer .usage-contact__item {
  display: grid;
  gap: 5px;
  min-width: 0;
}

.page-disclaimer .usage-contact__label {
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-disclaimer .usage-contact__value {
  color: var(--white);
  font-size: 0.98rem;
  line-height: 1.6;
  word-break: break-word;
}

.page-disclaimer a.usage-contact__value {
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  justify-self: start;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-disclaimer a.usage-contact__value:hover,
.page-disclaimer a.usage-contact__value:focus-visible {
  color: var(--yellow);
  border-color: var(--yellow);
}

.page-disclaimer .usage-contact__item--link {
  grid-column: 1 / -1;
}

.page-disclaimer .usage-contact__cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 11px 20px;
  background: var(--yellow);
  color: var(--ink);
  font-weight: 700;
  font-size: 0.92rem;
  letter-spacing: 0.01em;
  text-decoration: none;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
  transition: background-color 0.2s ease, color 0.2s ease;
}

.page-disclaimer .usage-contact__cta::after {
  content: "→";
  font-family: var(--font-mono);
}

.page-disclaimer .usage-contact__cta:hover,
.page-disclaimer .usage-contact__cta:focus-visible {
  background: var(--cyan);
  color: var(--ink);
}

@media (min-width: 720px) {
  .page-disclaimer .usage-contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-disclaimer .usage-layout {
    grid-template-columns: minmax(0, 1fr) 296px;
    align-items: start;
  }

  .page-disclaimer .usage-index {
    order: 2;
    position: sticky;
    top: calc(var(--header-offset) + 20px);
    padding: 16px;
  }

  .page-disclaimer .index-list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding: 0;
  }

  .page-disclaimer .index-link {
    border: 0;
    border-left: 2px solid transparent;
    padding: 9px 10px;
    white-space: normal;
    font-size: 13.5px;
  }

  .page-disclaimer .index-link:hover,
  .page-disclaimer .index-link:focus-visible {
    border-left-color: var(--cyan);
  }

  .page-disclaimer .usage-doc {
    order: 1;
  }

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

@media (min-width: 1100px) {
  .page-disclaimer .usage-contact {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .index-link,
  .page-disclaimer a.usage-contact__value,
  .page-disclaimer .usage-contact__cta {
    transition: none;
  }
}

@media print {
  .page-disclaimer .usage-index {
    display: none;
  }

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

  .page-disclaimer .clause,
  .page-disclaimer .usage-contact {
    break-inside: avoid;
  }
}