.page-disclaimer {
  --usage-num: 64px;
}

/* 首屏 */
.page-disclaimer .usage-hero {
  padding-top: clamp(20px, 3.5vw, 40px);
  padding-bottom: clamp(28px, 4vw, 48px);
}

.page-disclaimer .usage-hero__inner {
  position: relative;
  border: 1px solid var(--line);
  background: var(--paper);
  padding: clamp(24px, 4vw, 56px) clamp(20px, 3.5vw, 56px) clamp(28px, 4vw, 52px);
}

.page-disclaimer .usage-hero__title {
  margin: 14px 0 0;
  font-size: clamp(46px, 10vw, 120px);
  font-weight: 300;
  line-height: 0.94;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-disclaimer .usage-hero__lead {
  margin: clamp(20px, 3vw, 32px) 0 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-disclaimer .usage-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin-top: clamp(22px, 3vw, 34px);
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--ink-2);
}

.page-disclaimer .usage-meta span {
  position: relative;
  padding-left: 14px;
}

.page-disclaimer .usage-meta span::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  background: var(--cinnabar);
}

.page-disclaimer .usage-hero__figure {
  margin: clamp(20px, 3vw, 32px) 0 0;
}

.page-disclaimer .usage-hero__figure img {
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  display: block;
}

/* 版面：索引 + 条款 */
.page-disclaimer .usage-layout {
  display: grid;
  gap: 28px;
  padding-bottom: clamp(56px, 8vw, 104px);
}

.page-disclaimer .usage-index__title {
  margin: 0 0 10px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--mist);
}

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

.page-disclaimer .usage-index__list li {
  flex: 0 0 auto;
}

.page-disclaimer .usage-index__list a {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: 2px;
  font-size: 13px;
  color: var(--ink-soft);
  text-decoration: none;
  white-space: nowrap;
  transition: color 160ms var(--ease), border-color 160ms var(--ease), background-color 160ms var(--ease);
}

.page-disclaimer .usage-index__list a .mono {
  font-size: 11px;
  color: var(--gold);
  letter-spacing: 0.06em;
}

.page-disclaimer .usage-index__list a:hover,
.page-disclaimer .usage-index__list a:focus-visible {
  color: var(--silver);
  border-color: var(--silver-2);
  background: var(--paper-2);
}

.page-disclaimer .usage-index__list a[aria-current="true"] {
  color: var(--ink);
  border-color: var(--cinnabar);
  background: rgba(232, 179, 158, 0.18);
}

.page-disclaimer .usage-index__list a[aria-current="true"] .mono {
  color: var(--cinnabar);
}

.page-disclaimer .usage-body {
  min-width: 0;
}

/* 条款 */
.page-disclaimer .clause {
  position: relative;
  padding-top: clamp(22px, 3vw, 30px);
  border-top: 1px solid var(--line);
}

.page-disclaimer .clause + .clause {
  margin-top: clamp(30px, 4.5vw, 54px);
}

.page-disclaimer .clause__head {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  align-items: baseline;
  gap: 10px;
}

.page-disclaimer .clause__num {
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--gold);
}

.page-disclaimer .clause--key .clause__num::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 8px;
  vertical-align: 1px;
  background: var(--cinnabar);
}

.page-disclaimer .clause__title {
  margin: 0;
  font-size: clamp(21px, 3vw, 30px);
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-disclaimer .clause__body {
  margin-top: clamp(14px, 2vw, 20px);
}

.page-disclaimer .clause__body p {
  margin: 0 0 1.1em;
  max-width: 66ch;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink-2);
}

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

.page-disclaimer .clause__body a {
  color: var(--silver);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: color 160ms var(--ease);
}

.page-disclaimer .clause__body a:hover,
.page-disclaimer .clause__body a:focus-visible {
  color: var(--cinnabar);
}

.page-disclaimer .clause-list {
  margin: 0 0 1.2em;
  padding: 0;
  list-style: none;
  max-width: 66ch;
}

.page-disclaimer .clause-list li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 10px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-soft);
}

.page-disclaimer .clause-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.85em;
  width: 10px;
  height: 1px;
  background: var(--silver-2);
}

.page-disclaimer .clause-list--strict li::before {
  top: 0.72em;
  width: 7px;
  height: 7px;
  background: var(--cinnabar);
}

/* 联系信息 */
.page-disclaimer .usage-contact {
  margin-top: clamp(18px, 2.5vw, 26px);
  padding: clamp(20px, 3vw, 30px);
}

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

.page-disclaimer .usage-contact .contact-item {
  display: grid;
  gap: 4px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .usage-contact .contact-item:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-disclaimer .contact-label {
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.page-disclaimer .contact-value {
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-disclaimer .contact-value--mono {
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}

.page-disclaimer .usage-contact__foot {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 28px);
}

/* 尾条 */
.page-disclaimer .usage-tail {
  margin-top: clamp(38px, 6vw, 72px);
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 1px solid var(--line-strong);
}

.page-disclaimer .usage-tail__text {
  margin: 0 0 16px;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-disclaimer .usage-tail__links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-disclaimer .usage-tail__links a {
  color: var(--silver);
  text-decoration: none;
  border-bottom: 1px solid var(--silver-2);
  padding-bottom: 2px;
  transition: color 160ms var(--ease), border-color 160ms var(--ease);
}

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

/* 平板及以上：左索引固定，条款带刻度竖线 */
@media (min-width: 900px) {
  .page-disclaimer .usage-layout {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
  }

  .page-disclaimer .usage-index {
    position: sticky;
    top: calc(var(--header-h) + 24px);
  }

  .page-disclaimer .usage-index__list {
    flex-direction: column;
    overflow: visible;
    gap: 4px;
    padding-bottom: 0;
  }

  .page-disclaimer .usage-index__list a {
    display: flex;
    width: 100%;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    padding: 8px 10px;
    white-space: normal;
  }

  .page-disclaimer .usage-index__list a:hover,
  .page-disclaimer .usage-index__list a:focus-visible,
  .page-disclaimer .usage-index__list a[aria-current="true"] {
    border-left-color: var(--cinnabar);
    background: var(--paper-2);
  }

  .page-disclaimer .usage-body {
    position: relative;
    padding-left: 36px;
  }

  .page-disclaimer .usage-body::before {
    content: "";
    position: absolute;
    left: 0;
    top: 8px;
    bottom: 8px;
    width: 1px;
    background-image: linear-gradient(to bottom, var(--silver-2) 0 5px, transparent 5px 13px);
    background-size: 1px 13px;
    background-repeat: repeat-y;
  }

  .page-disclaimer .clause__head {
    grid-template-columns: var(--usage-num) minmax(0, 1fr);
    gap: 16px;
  }

  .page-disclaimer .clause__num {
    font-size: 14px;
  }

  .page-disclaimer .clause__body {
    padding-left: calc(var(--usage-num) + 16px);
  }

  .page-disclaimer .usage-contact .contact-item {
    grid-template-columns: 120px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
  }
}

@media (min-width: 1200px) {
  .page-disclaimer .usage-layout {
    grid-template-columns: 248px minmax(0, 1fr);
    gap: 72px;
  }
}

/* 打印：去掉装饰，条款归位 */
@media print {
  .page-disclaimer .usage-index,
  .page-disclaimer .usage-hero__figure,
  .page-disclaimer .usage-contact__foot,
  .page-disclaimer .usage-tail__links {
    display: none;
  }

  .page-disclaimer .usage-hero__inner {
    border: 0;
    padding: 0 0 12pt;
  }

  .page-disclaimer .usage-body {
    padding-left: 0;
  }

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

  .page-disclaimer .clause__body {
    padding-left: 0;
  }

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

  .page-disclaimer .clause__body p,
  .page-disclaimer .clause-list li {
    color: #000;
    font-size: 11pt;
  }
}
<<<PAGE_CSS_END>>>