.page-disclaimer {
  --disc-line: rgba(11, 18, 32, .14);
  --disc-line-soft: rgba(11, 18, 32, .07);
  --disc-line-dark: rgba(244, 241, 234, .2);
  --disc-num-size: clamp(34px, 8vw, 64px);
  background: var(--paper);
  color: var(--ink);
}

/* ---------- 顶部直角说明横幅 ---------- */
.page-disclaimer .usage-hero {
  background:
    radial-gradient(120% 90% at 88% 6%, rgba(0, 229, 199, .16), transparent 58%),
    linear-gradient(158deg, var(--indigo-950) 0%, var(--indigo-800) 64%, var(--indigo-600) 100%);
  color: var(--paper);
  border-bottom: 1px solid var(--disc-line-dark);
  padding: clamp(30px, 6vw, 64px) 0 clamp(32px, 6vw, 68px);
}

.page-disclaimer .usage-hero__inner {
  display: grid;
  gap: clamp(26px, 5vw, 48px);
  align-items: end;
}

.page-disclaimer .usage-hero .breadcrumb__list {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 clamp(20px, 4vw, 34px);
  padding: 0;
  list-style: none;
}

.page-disclaimer .usage-hero .breadcrumb__link {
  color: var(--paper-60);
  text-decoration: none;
}

.page-disclaimer .usage-hero .breadcrumb__link:hover {
  color: var(--paper);
}

.page-disclaimer .usage-hero .breadcrumb__sep,
.page-disclaimer .usage-hero .breadcrumb__current {
  color: var(--paper-80);
}

.page-disclaimer .usage-hero .breadcrumb__sep {
  color: var(--paper-40);
}

.page-disclaimer .usage-hero .eyebrow {
  color: var(--paper-60);
  margin: 0 0 14px;
}

.page-disclaimer .usage-hero .h-page {
  margin: 0 0 18px;
  color: var(--paper);
  max-width: 18ch;
}

.page-disclaimer .usage-hero .lede {
  margin: 0;
  color: var(--paper-80);
  max-width: 42ch;
}

.page-disclaimer .usage-hero__figure {
  margin: 0;
}

.page-disclaimer .usage-hero__figure .figure__frame {
  border-radius: 0;
  border: 1px solid var(--disc-line-dark);
  background: linear-gradient(150deg, var(--indigo-600), var(--indigo-950));
  aspect-ratio: 3 / 2;
  overflow: hidden;
}

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

.page-disclaimer .usage-hero__figure .figure__caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--paper-60);
}

/* ---------- 米白长文区 ---------- */
.page-disclaimer .usage-body {
  padding: clamp(36px, 7vw, 76px) 0 clamp(48px, 9vw, 104px);
}

.page-disclaimer .usage-flow {
  max-width: 820px;
}

.page-disclaimer .usage-sec {
  border-top: 1px solid var(--disc-line);
  padding: clamp(26px, 4.5vw, 46px) 0;
}

.page-disclaimer .usage-sec:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-disclaimer .usage-sec--last {
  padding-bottom: 0;
}

.page-disclaimer .usage-sec__idx {
  display: block;
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--warm-gray);
  margin-bottom: 10px;
}

.page-disclaimer .usage-sec .h-section {
  margin: 0 0 16px;
  color: var(--ink);
}

.page-disclaimer .usage-sec p {
  margin: 0 0 14px;
  font-size: 17px;
  line-height: 1.75;
  max-width: 40em;
}

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

.page-disclaimer .usage-list {
  list-style: none;
  margin: 4px 0 18px;
  padding: 0;
  display: grid;
  gap: 11px;
  max-width: 40em;
}

.page-disclaimer .usage-list li {
  position: relative;
  padding-left: 20px;
  font-size: 17px;
  line-height: 1.72;
}

.page-disclaimer .usage-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 10px;
  height: 1px;
  background: var(--warm-gray);
}

.page-disclaimer .usage-link {
  color: var(--indigo-800);
  text-decoration: underline;
  text-decoration-color: var(--disc-line);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-disclaimer .usage-link:hover {
  text-decoration-color: var(--indigo-800);
}

/* ---------- 数字口径账本 ---------- */
.page-disclaimer .num-ledger {
  margin-top: clamp(20px, 3.5vw, 32px);
  border-top: 1px solid var(--disc-line);
}

.page-disclaimer .num-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  padding: clamp(20px, 3vw, 28px) 0;
  border-bottom: 1px solid var(--disc-line-soft);
}

.page-disclaimer .num-row__figure {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
}

.page-disclaimer .num-row__figure--multi {
  flex-direction: column;
  gap: 4px;
}

.page-disclaimer .num-row__value {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: var(--disc-num-size);
  font-weight: 600;
  line-height: .95;
  letter-spacing: -.03em;
  color: var(--indigo-800);
}

.page-disclaimer .num-row--price .num-row__value {
  font-size: clamp(20px, 5vw, 28px);
  font-weight: 500;
  letter-spacing: -.01em;
}

.page-disclaimer .num-row__unit {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--warm-gray);
}

.page-disclaimer .num-row__text {
  transition: transform .28s var(--ease);
}

.page-disclaimer .num-row__text .h-sub {
  margin: 0 0 8px;
}

.page-disclaimer .num-row__text p {
  margin: 0;
  font-size: 16px;
  line-height: 1.72;
  color: var(--ink);
}

/* ---------- 反馈渠道：全页唯一暖色 ---------- */
.page-disclaimer .feedback-link {
  color: var(--ink);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: var(--orange);
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
  word-break: break-all;
}

.page-disclaimer .feedback-link:hover {
  color: var(--orange);
}

/* ---------- 回到页首 ---------- */
.page-disclaimer .to-top {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: clamp(22px, 3.5vw, 32px);
  padding: 11px 16px;
  border: 1px solid var(--disc-line);
  border-radius: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--indigo-800);
  text-decoration: none;
}

.page-disclaimer .to-top:hover {
  border-color: var(--indigo-800);
}

.page-disclaimer .to-top:focus-visible,
.page-disclaimer .usage-link:focus-visible,
.page-disclaimer .feedback-link:focus-visible {
  outline: 2px solid var(--cyan-ink);
  outline-offset: 3px;
}

/* ---------- 窄屏收敛 ---------- */
@media (max-width: 560px) {
  .page-disclaimer .usage-sec p,
  .page-disclaimer .usage-list li,
  .page-disclaimer .num-row__text p {
    font-size: 16px;
  }

  .page-disclaimer .usage-hero .h-page {
    max-width: none;
  }

  .page-disclaimer .num-row__value {
    font-size: clamp(30px, 12vw, 46px);
  }

  .page-disclaimer .num-row--price .num-row__value {
    font-size: clamp(19px, 6.4vw, 24px);
  }
}

/* ---------- 桌面：数字两列对照 ---------- */
@media (min-width: 880px) {
  .page-disclaimer .usage-hero__inner {
    grid-template-columns: minmax(0, 1fr) minmax(230px, 310px);
    gap: clamp(40px, 5vw, 76px);
  }

  .page-disclaimer .num-row {
    grid-template-columns: minmax(150px, 200px) minmax(0, 1fr);
    gap: clamp(24px, 4vw, 56px);
    align-items: start;
  }

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

@media (hover: hover) and (min-width: 880px) {
  .page-disclaimer .num-row:hover .num-row__text {
    transform: translateX(6px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .num-row__text {
    transition: none;
  }

  .page-disclaimer .num-row:hover .num-row__text {
    transform: none;
  }
}