.page-disclaimer {
  --u-line: rgba(0, 229, 255, 0.14);
  --u-panel: rgba(27, 34, 51, 0.5);
  --u-ok: #4DF5C0;
  --u-warn: #FF6B35;
  --u-violet: #7C4DFF;
  background: var(--ink);
  color: var(--paper);
}

.page-disclaimer .section {
  padding-block: clamp(52px, 8vw, 96px);
}

/* ---------- hero ---------- */
.page-disclaimer .usage-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(38px, 6vw, 72px) clamp(24px, 4vw, 44px);
  background:
    linear-gradient(155deg, rgba(0, 229, 255, 0.10) 0%, rgba(10, 14, 23, 0) 42%),
    var(--ink);
}

.page-disclaimer .usage-hero__glow {
  position: absolute;
  inset: -30% -10% auto auto;
  width: 58vw;
  height: 58vw;
  max-width: 760px;
  max-height: 760px;
  background: radial-gradient(circle at 60% 40%, rgba(124, 77, 255, 0.30), transparent 68%);
  pointer-events: none;
}

.page-disclaimer .usage-hero__inner {
  position: relative;
  max-width: var(--shell-max);
}

.page-disclaimer .usage-hero__title {
  margin: 12px 0 0;
  font-size: clamp(38px, 8.4vw, 104px);
  line-height: 1.02;
  letter-spacing: -0.03em;
  max-width: 15ch;
}

.page-disclaimer .usage-hero__lede {
  margin-top: clamp(18px, 3vw, 30px);
  max-width: 62ch;
  color: var(--steel);
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
}

.page-disclaimer .usage-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 32px;
  margin: clamp(24px, 4vw, 38px) 0 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .usage-hero__meta li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid var(--u-line);
  background: var(--u-panel);
  clip-path: var(--cut-sm);
  font-size: 13px;
}

.page-disclaimer .usage-hero__k {
  color: var(--steel);
}

.page-disclaimer .usage-hero__v {
  font-size: 22px;
  color: var(--cyan);
}

.page-disclaimer .usage-hero__figure {
  margin: clamp(28px, 5vw, 48px) 0 0;
  border-color: rgba(0, 229, 255, 0.22);
}

.page-disclaimer .usage-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(1.05) contrast(1.05);
}

/* ---------- index ---------- */
.page-disclaimer .usage-index {
  position: sticky;
  top: 0;
  z-index: 6;
  border-block: 1px solid var(--hairline);
  background: rgba(6, 9, 17, 0.88);
  backdrop-filter: blur(10px);
}

.page-disclaimer .usage-index__inner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-block: 12px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-disclaimer .usage-index__inner::-webkit-scrollbar { display: none; }

.page-disclaimer .usage-index__label {
  flex: none;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--lava);
  text-transform: uppercase;
}

.page-disclaimer .usage-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .usage-index__link {
  display: inline-block;
  white-space: nowrap;
  padding: 7px 14px;
  border: 1px solid var(--u-line);
  clip-path: var(--cut-sm);
  color: var(--paper);
  font-size: 13px;
  text-decoration: none;
  transition: border-color .2s ease, color .2s ease, background .2s ease;
}

.page-disclaimer .usage-index__link:hover,
.page-disclaimer .usage-index__link:focus-visible {
  border-color: var(--cyan);
  background: rgba(0, 229, 255, 0.10);
  color: var(--cyan);
}

/* ---------- block head ---------- */
.page-disclaimer .usage-block--alt {
  background: linear-gradient(180deg, rgba(27, 34, 51, 0.45), rgba(10, 14, 23, 0.9));
  border-block: 1px solid var(--hairline);
}

.page-disclaimer .usage-head {
  max-width: 720px;
}

.page-disclaimer .usage-head__title {
  margin: 10px 0 0;
  font-size: clamp(26px, 4.4vw, 50px);
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.page-disclaimer .usage-head__intro {
  margin: 14px 0 0;
  color: var(--steel);
  font-size: 15.5px;
  line-height: 1.78;
  max-width: 60ch;
}

/* ---------- pair table ---------- */
.page-disclaimer .pair {
  margin-top: clamp(28px, 4vw, 46px);
  border-top: 1px solid var(--hairline);
}

.page-disclaimer .pair__head,
.page-disclaimer .pair__row {
  display: grid;
  grid-template-columns: 46px 1fr 1fr;
  gap: 0;
  align-items: stretch;
}

.page-disclaimer .pair__head {
  padding-block: 10px;
  border-bottom: 1px solid var(--hairline);
}

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

.page-disclaimer .pair__col--do {
  color: var(--cyan);
  padding-left: 16px;
}

.page-disclaimer .pair__col--better {
  color: var(--lava);
  padding-left: 20px;
  border-left: 1px solid var(--hairline);
}

.page-disclaimer .pair__row {
  border-bottom: 1px solid var(--hairline);
  transition: background .22s ease;
}

.page-disclaimer .pair__row:hover,
.page-disclaimer .pair__row:focus-within {
  background: linear-gradient(90deg, rgba(0, 229, 255, 0.09), rgba(255, 107, 53, 0.09));
}

.page-disclaimer .pair__row .pair__no {
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  padding-top: 18px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--violet);
}

.page-disclaimer .pair__cell {
  padding: 16px 16px 18px 0;
}

.page-disclaimer .pair__cell + .pair__cell {
  padding-left: 20px;
  padding-right: 0;
  border-left: 1px solid var(--hairline);
}

.page-disclaimer .pair__row:hover .pair__cell + .pair__cell,
.page-disclaimer .pair__row:focus-within .pair__cell + .pair__cell {
  border-left-color: rgba(255, 107, 53, 0.55);
}

.page-disclaimer .pair__tag {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-disclaimer .pair__tag--lava { color: var(--lava); }

.page-disclaimer .pair__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--paper);
}

.page-disclaimer .pair__row .pair__cell:first-of-type .pair__text {
  color: var(--steel);
}

/* ---------- caution ---------- */
.page-disclaimer .usage-caution {
  display: flex;
  gap: 16px;
  margin-top: clamp(26px, 4vw, 40px);
  padding: 20px 22px;
  border: 1px solid rgba(255, 107, 53, 0.4);
  background: rgba(255, 107, 53, 0.07);
  clip-path: var(--cut);
}

.page-disclaimer .usage-caution__mark {
  flex: none;
  font-family: var(--font-mono);
  font-size: 26px;
  line-height: 1;
  color: var(--lava);
}

.page-disclaimer .usage-caution__title {
  margin: 0 0 6px;
  font-size: 15px;
  font-weight: 700;
  color: var(--lava);
}

.page-disclaimer .usage-caution__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--steel);
}

/* ---------- citation ---------- */
.page-disclaimer .cite-layout {
  display: grid;
  gap: clamp(22px, 3.4vw, 36px);
  margin-top: clamp(28px, 4vw, 46px);
}

.page-disclaimer .cite-card {
  padding: 24px 24px 22px;
  border: 1px solid var(--u-line);
  border-left: 4px solid var(--cyan);
  background: var(--u-panel);
  clip-path: var(--cut);
}

.page-disclaimer .cite-card__label {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-disclaimer .cite-card__sample {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(13px, 2.6vw, 15px);
  line-height: 1.8;
  color: var(--paper);
  word-break: break-word;
}

.page-disclaimer .cite-card__copy {
  margin-top: 16px;
}

.page-disclaimer .cite-card__hint {
  margin: 12px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--steel);
}

.page-disclaimer .cite-rules {
  display: grid;
  gap: 2px;
}

.page-disclaimer .cite-rule {
  display: grid;
  grid-template-columns: 42px 1fr;
  align-items: start;
  gap: 0 14px;
  padding: 16px 18px;
  background: rgba(27, 34, 51, 0.42);
  border-left: 2px solid var(--u-violet);
  transition: background .2s ease, border-left-color .2s ease;
}

.page-disclaimer .cite-rule:hover {
  background: rgba(124, 77, 255, 0.14);
  border-left-color: var(--cyan);
}

.page-disclaimer .cite-rule__no {
  grid-row: span 2;
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--violet);
  line-height: 1.2;
}

.page-disclaimer .cite-rule__title {
  margin: 0;
  font-size: 15.5px;
  letter-spacing: -0.01em;
}

.page-disclaimer .cite-rule__text {
  margin: 6px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--steel);
}

/* ---------- repost ---------- */
.page-disclaimer .repost-grid {
  display: grid;
  gap: 16px;
  margin-top: clamp(28px, 4vw, 46px);
}

.page-disclaimer .repost-card {
  padding: 20px 22px 22px;
  border: 1px solid var(--hairline);
  background: rgba(10, 14, 23, 0.6);
  clip-path: var(--cut-sm);
}

.page-disclaimer .repost-card--ok { border-top: 3px solid var(--u-ok); }
.page-disclaimer .repost-card--care { border-top: 3px solid var(--cyan); }
.page-disclaimer .repost-card--stop { border-top: 3px solid var(--u-warn); }

.page-disclaimer .repost-card__flag {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.1em;
}

.page-disclaimer .repost-card--ok .repost-card__flag { color: var(--u-ok); }
.page-disclaimer .repost-card--care .repost-card__flag { color: var(--cyan); }
.page-disclaimer .repost-card--stop .repost-card__flag { color: var(--u-warn); }

.page-disclaimer .repost-card__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .repost-card__list li {
  position: relative;
  padding: 9px 0 9px 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper);
  border-top: 1px solid var(--hairline);
}

.page-disclaimer .repost-card__list li:first-child { border-top: 0; padding-top: 0; }

.page-disclaimer .repost-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 17px;
  width: 7px;
  height: 1px;
  background: currentColor;
  opacity: .7;
}

.page-disclaimer .repost-card__list li:first-child::before { top: 8px; }

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

.page-disclaimer .repost-tail {
  margin: clamp(22px, 3.4vw, 34px) 0 0;
  padding-left: 16px;
  border-left: 3px solid var(--u-violet);
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--steel);
  max-width: 72ch;
}

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

/* ---------- flow ---------- */
.page-disclaimer .flow {
  display: grid;
  gap: 2px;
  margin: clamp(28px, 4vw, 46px) 0 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-disclaimer .flow__step {
  position: relative;
  padding: 20px 22px 22px 24px;
  background: linear-gradient(90deg, rgba(0, 229, 255, 0.09), rgba(27, 34, 51, 0.42) 42%);
  border-left: 3px solid var(--cyan);
  clip-path: var(--cut);
}

.page-disclaimer .flow__step + .flow__step {
  border-left-color: var(--u-violet);
}

.page-disclaimer .flow__no {
  display: block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--lava);
}

.page-disclaimer .flow__title {
  margin: 6px 0 6px;
  font-size: 19px;
  letter-spacing: -0.01em;
}

.page-disclaimer .flow__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--steel);
  max-width: 74ch;
}

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

.page-disclaimer .usage-side {
  display: grid;
  gap: 14px;
  margin-top: clamp(26px, 4vw, 40px);
}

.page-disclaimer .usage-side__block {
  padding: 18px 20px;
  border: 1px dashed rgba(154, 167, 199, 0.32);
  background: rgba(6, 9, 17, 0.5);
}

.page-disclaimer .usage-side__title {
  margin: 0 0 8px;
  font-size: 15px;
  color: var(--paper);
}

.page-disclaimer .usage-side__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--steel);
}

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

/* ---------- cta ---------- */
.page-disclaimer .usage-cta {
  position: relative;
  padding-block: clamp(44px, 7vw, 76px);
  background:
    linear-gradient(120deg, rgba(124, 77, 255, 0.22), rgba(0, 229, 255, 0.10) 55%, rgba(255, 107, 53, 0.14)),
    var(--ink-deep);
  border-top: 1px solid var(--glass-line);
}

.page-disclaimer .usage-cta__inner {
  display: grid;
  gap: 22px;
  align-items: center;
}

.page-disclaimer .usage-cta__title {
  margin: 0;
  font-size: clamp(24px, 4vw, 42px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  max-width: 20ch;
}

.page-disclaimer .usage-cta__text {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--steel);
  max-width: 52ch;
}

.page-disclaimer .usage-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- breakpoints ---------- */
@media (max-width: 860px) {
  .page-disclaimer .pair__head { display: none; }

  .page-disclaimer .pair__row {
    grid-template-columns: 38px 1fr;
    padding: 4px 0 14px;
  }

  .page-disclaimer .pair__row .pair__no {
    grid-row: span 2;
    padding-top: 18px;
  }

  .page-disclaimer .pair__cell {
    padding: 12px 0 0;
  }

  .page-disclaimer .pair__cell + .pair__cell {
    padding-left: 0;
    padding-top: 14px;
    border-left: 0;
    border-top: 1px dashed rgba(255, 107, 53, 0.42);
  }

  .page-disclaimer .pair__cell + .pair__cell::before {
    content: "→ 更准的做法";
    display: block;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.1em;
    color: var(--lava);
    margin-bottom: 6px;
  }

  .page-disclaimer .usage-caution { flex-direction: column; gap: 8px; }

  .page-disclaimer .cite-rule { grid-template-columns: 34px 1fr; }
}

@media (min-width: 861px) {
  .page-disclaimer .cite-layout {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

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

  .page-disclaimer .flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 3px;
  }

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

  .page-disclaimer .usage-cta__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }

  .page-disclaimer .usage-cta__actions { justify-content: flex-end; }
}

@media (min-width: 1100px) {
  .page-disclaimer .flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .pair__row,
  .page-disclaimer .cite-rule,
  .page-disclaimer .usage-index__link {
    transition: none;
  }
}
<<<END>>>