.page-disclaimer {
  --usage-block-gap: 44px;
  --usage-hairline: rgba(155, 176, 201, 0.2);
  background: var(--deep-space);
  color: var(--warm);
  font-family: var(--font-body);
}

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

/* ---------- 首屏 ---------- */
.page-disclaimer .usage-hero {
  position: relative;
  padding-block: 22px 40px;
  background:
    radial-gradient(120% 82% at 84% 0%, rgba(53, 214, 232, 0.14), transparent 60%),
    linear-gradient(165deg, var(--deep) 0%, var(--deep-space) 58%, #0a2138 100%);
  border-bottom: var(--line) solid rgba(201, 146, 46, 0.55);
}

.page-disclaimer .usage-hero .breadcrumbs {
  margin-bottom: 20px;
}

.page-disclaimer .breadcrumbs__link {
  color: var(--mist);
}

.page-disclaimer .breadcrumbs__link:hover,
.page-disclaimer .breadcrumbs__link:focus-visible {
  color: var(--cyan);
}

.page-disclaimer .breadcrumbs__link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-disclaimer .usage-hero__text {
  position: relative;
  z-index: 1;
  max-width: 880px;
}

.page-disclaimer .index-label {
  display: inline-block;
  color: var(--gold);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
}

.page-disclaimer .usage-hero__title {
  margin: 12px 0 0;
  color: var(--warm);
  font-size: clamp(30px, 8.2vw, 64px);
  font-weight: 300;
  line-height: 1.06;
  letter-spacing: 0.01em;
}

.page-disclaimer .usage-hero__lede {
  margin: 18px 0 0;
  max-width: 660px;
  color: var(--mist);
  font-size: 15.5px;
  line-height: 1.85;
}

.page-disclaimer .usage-jump {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .usage-jump__link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 16px;
  border: var(--line) solid var(--gold-line);
  background: rgba(242, 184, 75, 0.08);
  color: var(--warm);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.page-disclaimer .usage-jump__link:hover,
.page-disclaimer .usage-jump__link:focus-visible {
  border-color: var(--cyan);
  background: rgba(53, 214, 232, 0.1);
  color: var(--cyan);
}

.page-disclaimer .usage-jump__link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-disclaimer .usage-hero__media {
  margin: 30px 0 0;
}

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

/* ---------- 章节骨架 ---------- */
.page-disclaimer .usage-section {
  padding-block: 48px;
}

.page-disclaimer .section-title {
  margin: 10px 0 0;
  color: var(--warm);
  font-size: clamp(23px, 4.6vw, 34px);
  font-weight: 800;
  line-height: 1.28;
  letter-spacing: 0.01em;
}

.page-disclaimer .section-lede {
  margin: 14px 0 0;
  max-width: 640px;
  color: var(--mist);
  font-size: 15.5px;
  line-height: 1.85;
}

.page-disclaimer .subsection-title {
  margin: 0 0 12px;
  color: var(--warm);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
}

/* ---------- 适用场景 ---------- */
.page-disclaimer .usage-scope__grid {
  display: grid;
  gap: 28px;
  min-width: 0;
}

.page-disclaimer .scope-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: var(--line) solid var(--usage-hairline);
}

.page-disclaimer .scope-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 6px 16px;
  padding: 18px 0;
  border-bottom: var(--line) solid var(--usage-hairline);
  transition: border-color 0.2s ease;
}

.page-disclaimer .scope-item:hover {
  border-bottom-color: var(--gold-line);
}

.page-disclaimer .scope-item__num {
  grid-row: span 2;
  padding-top: 3px;
  color: var(--gold);
  font-size: 12.5px;
  letter-spacing: 0.08em;
}

.page-disclaimer .scope-item__title {
  margin: 0;
  color: var(--warm);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
}

.page-disclaimer .scope-item__text {
  margin: 0;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.8;
}

/* ---------- 适配清单步骤 ---------- */
.page-disclaimer .usage-adapt {
  background: linear-gradient(180deg, rgba(3, 9, 16, 0.35), rgba(3, 9, 16, 0));
}

.page-disclaimer .adapt-steps {
  display: grid;
  gap: 14px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .adapt-steps .step {
  padding: 20px 18px;
  background: var(--surface-grad);
  border: var(--line) solid rgba(201, 146, 46, 0.45);
  box-shadow: var(--shadow-hard);
  transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.page-disclaimer .adapt-steps .step:hover,
.page-disclaimer .adapt-steps .step:focus-within {
  border-color: var(--cyan);
  transform: translateY(-3px);
  box-shadow: var(--shadow-hard-cyan);
}

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

.page-disclaimer .step__index {
  flex: 0 0 auto;
  color: var(--gold);
  font-size: 13px;
  letter-spacing: 0.1em;
}

.page-disclaimer .step__title {
  margin: 0;
  color: var(--warm);
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.5;
}

.page-disclaimer .step__body {
  margin-top: 12px;
}

.page-disclaimer .step__body p {
  margin: 0;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.8;
}

/* ---------- 版本对照 ---------- */
.page-disclaimer .usage-version {
  background:
    radial-gradient(90% 70% at 8% 0%, rgba(242, 184, 75, 0.12), transparent 58%),
    linear-gradient(180deg, rgba(13, 37, 66, 0.55), rgba(3, 9, 16, 0.4));
  border-top: var(--line) solid rgba(201, 146, 46, 0.35);
  border-bottom: var(--line) solid rgba(201, 146, 46, 0.35);
}

.page-disclaimer .version-layout {
  display: grid;
  gap: 26px;
  margin-top: 30px;
  min-width: 0;
}

.page-disclaimer .version-main {
  display: grid;
  gap: 18px;
  min-width: 0;
}

.page-disclaimer .version-block {
  min-width: 0;
  padding: 22px 18px;
  background: var(--panel);
  border: var(--line) solid rgba(201, 146, 46, 0.4);
  border-left: 4px solid var(--gold);
}

.page-disclaimer .version-text {
  margin: 0 0 12px;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.85;
}

.page-disclaimer .version-text:last-child {
  margin-bottom: 0;
}

.page-disclaimer .version-places {
  margin: 0;
  padding-left: 20px;
  color: var(--mist);
  font-size: 15px;
  line-height: 1.85;
}

.page-disclaimer .version-places li + li {
  margin-top: 6px;
}

.page-disclaimer .version-places li::marker {
  color: var(--gold);
}

.page-disclaimer .version-chip {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 44px;
  margin: 4px 0 16px;
  padding: 8px 16px;
  border: var(--line) solid var(--gold-line);
  background: rgba(242, 184, 75, 0.08);
  font: inherit;
  cursor: pointer;
  transition: border-color 0.2s ease, background-color 0.2s ease;
}

.page-disclaimer .version-chip:hover,
.page-disclaimer .version-chip:focus-visible {
  border-color: var(--cyan);
  background: rgba(53, 214, 232, 0.1);
}

.page-disclaimer .version-chip:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-disclaimer .version-chip .copy-chip__value {
  color: var(--gold);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.page-disclaimer .version-chip .copy-chip__hint {
  color: var(--mist);
  font-size: 12px;
  letter-spacing: 0.08em;
}

.page-disclaimer .version-chip[data-copied="true"] .copy-chip__hint {
  color: var(--green);
}

.page-disclaimer .ver-format {
  display: grid;
  gap: 0;
  margin: 0;
}

.page-disclaimer .ver-format__row {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 10px;
  padding: 10px 0;
  border-top: 1px solid var(--usage-hairline);
}

.page-disclaimer .ver-format dt {
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
}

.page-disclaimer .ver-format dd {
  margin: 0;
  color: var(--mist);
  font-size: 14.5px;
  line-height: 1.75;
}

.page-disclaimer .version-side {
  min-width: 0;
  padding: 20px 18px;
  background: linear-gradient(180deg, rgba(13, 37, 66, 0.85), rgba(3, 9, 16, 0.75));
  border: var(--line) solid rgba(53, 214, 232, 0.35);
}

.page-disclaimer .version-index {
  display: grid;
  gap: 2px;
  margin: 10px 0 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .version-index__item {
  min-width: 0;
}

.page-disclaimer .version-index__link {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 8px 10px;
  border-left: 2px solid transparent;
  color: var(--mist);
  font-size: 14.5px;
  text-decoration: none;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.page-disclaimer .version-index__link:hover,
.page-disclaimer .version-index__link:focus-visible {
  border-left-color: var(--cyan);
  background: rgba(53, 214, 232, 0.08);
  color: var(--cyan);
}

.page-disclaimer .version-index__link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- 排查入口 ---------- */
.page-disclaimer .usage-help {
  background: linear-gradient(180deg, rgba(3, 9, 16, 0), rgba(3, 9, 16, 0.55));
}

.page-disclaimer .help-grid {
  display: grid;
  gap: 30px;
  min-width: 0;
}

.page-disclaimer .help-intro {
  min-width: 0;
}

.page-disclaimer .help-intro .btn {
  margin-top: 22px;
}

.page-disclaimer .help-lane {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .help-lane__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 4px 14px;
  min-width: 0;
  padding: 16px;
  background: var(--panel);
  border: var(--line) solid rgba(155, 176, 201, 0.22);
  border-left: 4px solid var(--gold);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.page-disclaimer .help-lane__item:hover,
.page-disclaimer .help-lane__item:focus-within {
  border-color: var(--cyan);
  border-left-color: var(--cyan);
  transform: translateY(-2px);
}

.page-disclaimer .help-lane__num {
  grid-row: span 2;
  padding-top: 2px;
  color: var(--gold);
  font-size: 13px;
  letter-spacing: 0.1em;
}

.page-disclaimer .help-lane__title {
  margin: 0;
  color: var(--warm);
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
}

.page-disclaimer .help-lane__text {
  margin: 0;
  color: var(--mist);
  font-size: 14.5px;
  line-height: 1.78;
}

/* ---------- 更新与答疑 ---------- */
.page-disclaimer .usage-tips {
  padding-bottom: 64px;
}

.page-disclaimer .tips-inner {
  padding: 26px 20px;
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(53, 214, 232, 0.12), transparent 60%),
    var(--surface-grad);
  border: var(--line) solid rgba(201, 146, 46, 0.5);
  box-shadow: var(--shadow-hard);
}

.page-disclaimer .tips-grid {
  display: grid;
  gap: 18px;
  margin-top: 24px;
}

.page-disclaimer .tip-card {
  padding-top: 14px;
  border-top: var(--line) solid var(--gold-line);
}

.page-disclaimer .tip-card__label {
  display: block;
  margin-bottom: 6px;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
}

.page-disclaimer .tip-card p {
  margin: 0;
  color: var(--mist);
  font-size: 14.5px;
  line-height: 1.8;
}

.page-disclaimer .tips-foot {
  margin: 24px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--usage-hairline);
  color: var(--mist);
  font-size: 14.5px;
  line-height: 1.9;
}

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

.page-disclaimer .tips-foot a:hover,
.page-disclaimer .tips-foot a:focus-visible {
  color: var(--gold);
}

.page-disclaimer .tips-foot a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 768px) {
  .page-disclaimer .usage-section {
    padding-block: 72px;
  }

  .page-disclaimer .usage-hero {
    padding-block: 32px 56px;
  }

  .page-disclaimer .adapt-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

  .page-disclaimer .tips-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 22px;
  }

  .page-disclaimer .tips-inner {
    padding: 34px 30px;
  }

  .page-disclaimer .version-block {
    padding: 26px 24px;
  }
}

@media (min-width: 900px) {
  .page-disclaimer .usage-scope__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: 52px;
    align-items: start;
  }

  .page-disclaimer .help-grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 52px;
    align-items: start;
  }
}

@media (min-width: 992px) {
  .page-disclaimer .version-layout {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 44px;
    align-items: start;
  }

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

@media (max-width: 420px) {
  .page-disclaimer .usage-hero__title {
    font-size: 28px;
  }

  .page-disclaimer .ver-format__row {
    grid-template-columns: minmax(0, 1fr);
    gap: 2px;
  }

  .page-disclaimer .tips-inner {
    padding: 22px 16px;
  }
}