.page-disclaimer {
  --pd-line: rgba(244, 236, 220, .14);
  --pd-line-soft: rgba(244, 236, 220, .07);
  --pd-ink-soft: #2C3B32;
  background: var(--ink);
  color: var(--mist);
  font-family: var(--font-body);
  overflow-x: clip;
}

.page-disclaimer::before {
  content: "";
  display: block;
  height: 3px;
  background: linear-gradient(90deg, var(--neon) 0%, var(--turf) 52%, var(--orange) 100%);
}

.page-disclaimer .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: clamp(16px, 3vw, 28px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: rgba(215, 222, 217, .58);
}

.page-disclaimer .breadcrumb a {
  color: var(--neon-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .16s var(--ease);
}

.page-disclaimer .breadcrumb a:hover,
.page-disclaimer .breadcrumb a:focus-visible {
  border-bottom-color: var(--neon-dim);
}

/* ===== 首屏 ===== */
.page-disclaimer .usage-hero {
  padding-block: clamp(26px, 4.5vw, 52px) clamp(34px, 5.5vw, 70px);
  border-bottom: 1px solid var(--pd-line);
}

.page-disclaimer .usage-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: end;
}

.page-disclaimer .usage-hero h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(36px, 7vw, 78px);
  font-weight: 700;
  line-height: .98;
  letter-spacing: -.01em;
  color: var(--cream);
}

.page-disclaimer .usage-hero__lead {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  max-width: 58ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: rgba(215, 222, 217, .84);
}

.page-disclaimer .usage-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: clamp(18px, 2.6vw, 28px);
}

.page-disclaimer .usage-hero__figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--pd-line);
  border-radius: var(--r);
  background: var(--ink-2);
  aspect-ratio: 16 / 9;
}

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

/* ===== 主体：编号刻度 + 条目 ===== */
.page-disclaimer .usage-main {
  padding-block: clamp(30px, 5vw, 62px) clamp(10px, 2vw, 20px);
}

.page-disclaimer .usage-main__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 44px);
  align-items: start;
}

.page-disclaimer .usage-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .24em;
  color: var(--neon);
}

.page-disclaimer .usage-rail__list {
  list-style: none;
  margin: 0;
  padding: 0 0 4px;
  display: flex;
  gap: 8px;
  max-width: 100%;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-disclaimer .usage-rail__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
  padding: 7px 14px;
  border: 1px solid var(--pd-line);
  border-radius: 999px;
  font-size: 13px;
  white-space: nowrap;
  color: rgba(215, 222, 217, .78);
  text-decoration: none;
  transition: color .16s var(--ease), border-color .16s var(--ease), background .16s var(--ease);
}

.page-disclaimer .usage-rail__link:hover,
.page-disclaimer .usage-rail__link:focus-visible {
  color: var(--cream);
  border-color: var(--orange);
  background: rgba(28, 81, 54, .42);
}

.page-disclaimer .usage-rail__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--orange);
  letter-spacing: .04em;
}

.page-disclaimer .usage-rail__foot {
  display: none;
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--pd-line-soft);
  font-size: 12.5px;
  line-height: 1.75;
  color: rgba(215, 222, 217, .5);
}

.page-disclaimer .usage-list {
  display: grid;
  gap: clamp(18px, 2.6vw, 28px);
}

.page-disclaimer .usage-item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(12px, 2vw, 22px);
  padding: clamp(20px, 3vw, 34px);
  background: var(--cream);
  border-top: 3px solid var(--turf);
  border-radius: var(--r);
  color: var(--ink-text);
  scroll-margin-top: calc(var(--header-h) + 24px);
  transition: transform .2s var(--ease), box-shadow .2s var(--ease);
}

.page-disclaimer .usage-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 32px -20px rgba(0, 0, 0, .7);
}

.page-disclaimer .usage-item__marker {
  font-family: var(--font-mono);
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--orange);
}

.page-disclaimer .usage-item__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(20px, 2.5vw, 28px);
  font-weight: 700;
  line-height: 1.22;
  color: var(--ink);
}

.page-disclaimer .usage-item__lead {
  margin: 0 0 14px;
  font-size: clamp(14.5px, 1.4vw, 15.5px);
  line-height: 1.82;
  color: var(--pd-ink-soft);
}

.page-disclaimer .usage-points {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-disclaimer .usage-points li {
  position: relative;
  padding: 11px 0 11px 20px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--pd-ink-soft);
  border-top: 1px solid rgba(22, 36, 29, .13);
}

.page-disclaimer .usage-points li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 19px;
  width: 6px;
  height: 6px;
  background: var(--turf);
  border-radius: 50%;
}

.page-disclaimer .usage-points a {
  color: var(--turf);
  text-decoration: none;
  border-bottom: 1px solid rgba(28, 81, 54, .4);
  transition: color .16s var(--ease), border-color .16s var(--ease);
}

.page-disclaimer .usage-points a:hover,
.page-disclaimer .usage-points a:focus-visible {
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-disclaimer .num {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--turf);
  letter-spacing: -.01em;
}

/* ===== 收尾联系 ===== */
.page-disclaimer .usage-help {
  padding-block: clamp(34px, 5vw, 72px) clamp(40px, 6vw, 84px);
}

.page-disclaimer .usage-help__card {
  position: relative;
  padding: clamp(24px, 4vw, 46px);
  background: var(--ink-2);
  border: 1px solid var(--pd-line);
  border-radius: var(--r);
  overflow: hidden;
}

.page-disclaimer .usage-help__card::after {
  content: "";
  position: absolute;
  inset: 0 0 0 auto;
  width: clamp(60px, 12vw, 130px);
  background: repeating-linear-gradient(115deg, rgba(28, 81, 54, .85) 0 12px, rgba(244, 236, 220, .1) 12px 18px);
  pointer-events: none;
}

.page-disclaimer .usage-help__card h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(24px, 3.6vw, 42px);
  font-weight: 700;
  line-height: 1.12;
  color: var(--cream);
  max-width: 22ch;
}

.page-disclaimer .usage-help__para {
  position: relative;
  z-index: 1;
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(215, 222, 217, .8);
}

.page-disclaimer .usage-help__contact {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 1px solid var(--pd-line);
}

.page-disclaimer .usage-help__contact dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .2em;
  color: var(--neon);
  margin-bottom: 5px;
}

.page-disclaimer .usage-help__contact dd {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--cream);
  word-break: break-word;
}

.page-disclaimer .usage-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-disclaimer .usage-links a {
  padding: 8px 15px;
  border: 1px solid var(--pd-line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .04em;
  color: rgba(215, 222, 217, .8);
  text-decoration: none;
  transition: color .16s var(--ease), border-color .16s var(--ease), background .16s var(--ease);
}

.page-disclaimer .usage-links a:hover,
.page-disclaimer .usage-links a:focus-visible {
  color: var(--ink);
  background: var(--neon);
  border-color: var(--neon);
}

/* ===== 断点 ===== */
@media (min-width: 680px) {
  .page-disclaimer .usage-item {
    grid-template-columns: 74px minmax(0, 1fr);
    gap: clamp(16px, 2.4vw, 26px);
  }

  .page-disclaimer .usage-item__marker {
    border-right: 1px solid rgba(22, 36, 29, .16);
    padding-right: 16px;
    align-self: start;
  }

  .page-disclaimer .usage-help__contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-disclaimer .usage-help__contact > div:last-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 900px) {
  .page-disclaimer .usage-hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(200px, 320px);
    align-items: stretch;
  }

  .page-disclaimer .usage-hero__figure {
    aspect-ratio: auto;
    min-height: 430px;
  }
}

@media (min-width: 1000px) {
  .page-disclaimer .usage-main__grid {
    grid-template-columns: 224px minmax(0, 1fr);
  }

  .page-disclaimer .usage-rail {
    position: sticky;
    top: calc(var(--header-h) + 26px);
  }

  .page-disclaimer .usage-rail__list {
    flex-direction: column;
    gap: 2px;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-disclaimer .usage-rail__link {
    display: flex;
    width: 100%;
    padding: 9px 12px;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    font-size: 14px;
  }

  .page-disclaimer .usage-rail__link:hover,
  .page-disclaimer .usage-rail__link:focus-visible {
    background: rgba(28, 81, 54, .42);
    border-left-color: var(--orange);
  }

  .page-disclaimer .usage-rail__foot {
    display: block;
  }

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

  .page-disclaimer .usage-help__contact > div:last-child {
    grid-column: auto;
  }
}
<<<END>>>