.page-disclaimer {
  --pds-clause-pad: clamp(24px, 4vw, 36px);
  padding-block: clamp(18px, 3.4vw, 32px) clamp(40px, 6vw, 72px);
}

/* ---------- 首屏规程抬头 ---------- */
.page-disclaimer .usage-hero {
  position: relative;
  padding: clamp(18px, 4vw, 36px) 0 clamp(20px, 4vw, 32px);
  border-bottom: 1px solid var(--hairline);
}

.page-disclaimer .usage-hero__seal {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 104px;
  height: 104px;
  margin-bottom: 22px;
  border: 1.5px solid var(--steel-blue);
  border-radius: 50%;
  color: var(--steel-blue);
  background:
    repeating-linear-gradient(45deg, rgba(127, 163, 190, 0.08) 0 3px, transparent 3px 9px);
  font-family: var(--font-mono);
  letter-spacing: 0.18em;
  line-height: 1.15;
  text-align: center;
  transform: rotate(-7deg);
}

.page-disclaimer .usage-hero__seal-top {
  font-size: 12px;
}

.page-disclaimer .usage-hero__seal-rule {
  width: 42px;
  height: 1px;
  background: currentColor;
  opacity: 0.55;
}

.page-disclaimer .usage-hero__seal-bottom {
  font-size: 8px;
  letter-spacing: 0.16em;
}

.page-disclaimer .usage-hero__index {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--steel-blue);
  text-transform: uppercase;
}

.page-disclaimer .usage-hero h1 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(30px, 7.6vw, 62px);
  line-height: 1.04;
  letter-spacing: 0.02em;
  color: var(--paper-bone);
  text-transform: uppercase;
}

.page-disclaimer .usage-hero__lead {
  margin: 0;
  max-width: 62ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.7;
  color: var(--muted-sage);
}

.page-disclaimer .usage-hero__meta {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin: 26px 0 0;
  border-top: 1px solid var(--hairline);
}

.page-disclaimer .usage-hero__meta-item {
  padding: 12px 0;
  border-bottom: 1px solid var(--hairline);
}

.page-disclaimer .usage-hero__meta-item dt {
  margin: 0 0 5px;
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: var(--steel-blue);
  text-transform: uppercase;
}

.page-disclaimer .usage-hero__meta-item dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper-bone);
}

/* ---------- 通栏印刷纹理 ---------- */
.page-disclaimer .usage-banner {
  margin: 0;
  padding: clamp(18px, 3.4vw, 30px) 0 0;
}

.page-disclaimer .usage-banner img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
  border: 1px solid var(--hairline);
  filter: saturate(0.42) contrast(1.06) brightness(0.82);
}

.page-disclaimer .usage-banner__cap {
  margin: 10px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--muted-sage);
}

/* ---------- 目录 + 条款 布局 ---------- */
.page-disclaimer .usage-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 4vw, 44px);
  margin-top: clamp(26px, 4.4vw, 46px);
}

.page-disclaimer .usage-toc {
  border: 1px solid var(--hairline);
  background: var(--pitch-forest);
  padding: 16px 16px 14px;
}

.page-disclaimer .usage-toc__label {
  margin: 0 0 12px;
  font-size: 10.5px;
  letter-spacing: 0.18em;
  color: var(--steel-blue);
  text-transform: uppercase;
}

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

.page-disclaimer .usage-toc__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 6px 8px 0;
  font-size: 14px;
  line-height: 1.45;
  color: var(--muted-sage);
  text-decoration: none;
  border-left: 2px solid transparent;
  padding-left: 8px;
  transition: color 160ms ease, border-color 160ms ease, background-color 160ms ease;
}

.page-disclaimer .usage-toc__num {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--steel-blue);
}

.page-disclaimer .usage-toc__link:hover,
.page-disclaimer .usage-toc__link:focus-visible {
  color: var(--paper-bone);
  border-left-color: var(--steel-blue);
  background: rgba(127, 163, 190, 0.08);
}

.page-disclaimer .usage-toc__link:focus-visible {
  outline: 2px solid var(--lime-home);
  outline-offset: 2px;
}

.page-disclaimer .usage-toc__note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--hairline);
  font-size: 12px;
  line-height: 1.6;
  color: var(--muted-sage);
}

/* ---------- 条款块 ---------- */
.page-disclaimer .usage-clauses {
  min-width: 0;
}

.page-disclaimer .clause {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  padding: var(--pds-clause-pad) 0;
  border-top: 1px solid var(--hairline);
  scroll-margin-top: calc(var(--frame-top) + 24px);
}

.page-disclaimer .clause:first-child {
  border-top: 1px solid var(--panel-moss);
}

.page-disclaimer .clause__num {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--steel-blue);
}

.page-disclaimer .clause__body {
  min-width: 0;
}

.page-disclaimer .clause__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(21px, 3.4vw, 30px);
  line-height: 1.16;
  letter-spacing: 0.02em;
  color: var(--paper-bone);
  text-transform: uppercase;
}

.page-disclaimer .clause__body p {
  margin: 0 0 0.9em;
  max-width: 68ch;
  font-size: 15px;
  line-height: 1.68;
  color: var(--muted-sage);
}

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

.page-disclaimer .clause__sub-title {
  margin: 20px 0 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--bolt-orange) !important;
  text-transform: uppercase;
}

.page-disclaimer .clause__list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-disclaimer .clause__list > li {
  position: relative;
  padding-left: 22px;
  max-width: 66ch;
  font-size: 14.5px;
  line-height: 1.66;
  color: var(--muted-sage);
}

.page-disclaimer .clause__list > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.76em;
  width: 12px;
  height: 1px;
  background: var(--steel-blue);
}

.page-disclaimer .clause__list--deny > li::before {
  background: var(--bolt-orange);
  width: 8px;
}

.page-disclaimer .clause__list .mono {
  color: var(--paper-bone);
  letter-spacing: 0.04em;
}

.page-disclaimer .clause__aside {
  margin-top: 20px;
  padding: 14px 16px;
  border-left: 2px solid var(--steel-blue);
  background: rgba(127, 163, 190, 0.07);
}

.page-disclaimer .clause__aside-label {
  display: block;
  margin-bottom: 7px;
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: var(--steel-blue);
  text-transform: uppercase;
}

.page-disclaimer .clause__aside p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.64;
  color: var(--muted-sage);
}

/* ---------- 非预测性声明：全页唯一强对比块 ---------- */
.page-disclaimer .no-forecast {
  margin: 0;
  padding: clamp(24px, 4.4vw, 42px) clamp(18px, 4vw, 40px);
  background:
    repeating-linear-gradient(-45deg, rgba(241, 237, 225, 0.055) 0 2px, transparent 2px 8px),
    var(--wine-garnet);
  border: 1px solid rgba(241, 237, 225, 0.24);
  color: var(--paper-bone);
  scroll-margin-top: calc(var(--frame-top) + 24px);
}

.page-disclaimer .no-forecast__label {
  margin: 0 0 14px;
  font-size: 10.5px;
  letter-spacing: 0.18em;
  color: rgba(241, 237, 225, 0.78);
  text-transform: uppercase;
}

.page-disclaimer .no-forecast__text {
  margin: 0;
  max-width: 64ch;
  font-size: clamp(15px, 1.8vw, 17px);
  line-height: 1.7;
  color: var(--paper-bone);
}

.page-disclaimer .no-forecast__list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-disclaimer .no-forecast__list > li {
  position: relative;
  padding-left: 20px;
  font-size: 13.5px;
  line-height: 1.6;
  color: rgba(241, 237, 225, 0.86);
}

.page-disclaimer .no-forecast__list > li::before {
  content: "×";
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-mono);
  color: var(--bolt-orange);
}

.page-disclaimer .no-forecast__copy {
  margin-top: 24px;
  color: var(--paper-bone);
  border-color: rgba(241, 237, 225, 0.5);
}

.page-disclaimer .no-forecast__copy:hover,
.page-disclaimer .no-forecast__copy:focus-visible {
  border-color: var(--bolt-orange);
  color: var(--bolt-orange);
}

/* ---------- 版本记录 ---------- */
.page-disclaimer .revision {
  margin-top: 22px;
  border: 1px solid var(--hairline);
  background: var(--pitch-forest);
}

.page-disclaimer .revision__summary {
  position: relative;
  display: block;
  padding: 14px 44px 14px 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--paper-bone);
  cursor: pointer;
  list-style: none;
}

.page-disclaimer .revision__summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer .revision__summary::after {
  content: "+";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 16px;
  color: var(--steel-blue);
}

.page-disclaimer .revision[open] .revision__summary::after {
  content: "−";
}

.page-disclaimer .revision__summary:focus-visible {
  outline: 2px solid var(--lime-home);
  outline-offset: -2px;
}

.page-disclaimer .revision__list {
  list-style: none;
  margin: 0;
  padding: 4px 16px 18px;
  border-top: 1px solid var(--hairline);
}

.page-disclaimer .revision__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(46, 74, 63, 0.6);
}

.page-disclaimer .revision__row:last-child {
  border-bottom: 0;
}

.page-disclaimer .revision__ver {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--steel-blue);
}

.page-disclaimer .revision__note {
  font-size: 13.5px;
  line-height: 1.64;
  color: var(--muted-sage);
}

/* ---------- 相关页面 ---------- */
.page-disclaimer .usage-links {
  margin-top: clamp(34px, 5vw, 58px);
  padding-top: clamp(22px, 3.6vw, 34px);
  border-top: 1px solid var(--panel-moss);
}

.page-disclaimer .usage-links__label {
  margin: 0 0 16px;
  font-size: 10.5px;
  letter-spacing: 0.18em;
  color: var(--steel-blue);
  text-transform: uppercase;
}

.page-disclaimer .usage-links__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
}

.page-disclaimer .usage-links__list > li {
  border-top: 1px solid var(--hairline);
}

.page-disclaimer .usage-links__list a {
  display: block;
  padding: 14px 4px 14px 22px;
  position: relative;
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--paper-bone);
  text-decoration: none;
  transition: color 160ms ease, background-color 160ms ease;
}

.page-disclaimer .usage-links__list a::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 0;
  height: 1px;
  background: var(--steel-blue);
  transition: width 160ms ease;
}

.page-disclaimer .usage-links__list a:hover,
.page-disclaimer .usage-links__list a:focus-visible {
  color: var(--lime-home);
  background: rgba(46, 74, 63, 0.35);
}

.page-disclaimer .usage-links__list a:hover::before,
.page-disclaimer .usage-links__list a:focus-visible::before {
  width: 14px;
}

.page-disclaimer .usage-links__list a:focus-visible {
  outline: 2px solid var(--lime-home);
  outline-offset: -2px;
}

.page-disclaimer .usage-links__foot {
  margin: 22px 0 0;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted-sage);
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 720px) {
  .page-disclaimer .usage-hero__meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    border-top: 1px solid var(--hairline);
  }

  .page-disclaimer .usage-hero__meta-item {
    padding: 14px 20px 14px 0;
    border-bottom: 0;
    border-right: 1px solid var(--hairline);
  }

  .page-disclaimer .usage-hero__meta-item:last-child {
    border-right: 0;
    padding-right: 0;
  }

  .page-disclaimer .clause {
    grid-template-columns: 72px minmax(0, 1fr);
    gap: 0 30px;
  }

  .page-disclaimer .clause__num {
    align-self: stretch;
    padding: 9px 20px 0 0;
    border-right: 1px solid var(--hairline);
    text-align: right;
  }

  .page-disclaimer .revision__row {
    grid-template-columns: 84px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }

  .page-disclaimer .usage-links__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 32px;
  }
}

/* ---------- 宽屏：目录固定，条款右置 ---------- */
@media (min-width: 1000px) {
  .page-disclaimer .usage-layout {
    grid-template-columns: 220px minmax(0, 1fr);
    gap: clamp(34px, 4.6vw, 62px);
    align-items: start;
  }

  .page-disclaimer .usage-toc {
    position: sticky;
    top: calc(var(--frame-top) + 20px);
  }

  .page-disclaimer .clause--plain {
    padding-bottom: 8px;
  }

  .page-disclaimer .usage-links__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .usage-toc__link,
  .page-disclaimer .usage-links__list a,
  .page-disclaimer .usage-links__list a::before {
    transition: none;
  }
}
</main>