.page-disclaimer {
  --u-line: rgba(138, 151, 143, .22);
  --u-line-mint: rgba(57, 242, 180, .38);
  --u-line-amber: rgba(240, 181, 66, .30);
  --u-line-volt: rgba(91, 108, 255, .32);
  --u-pad: clamp(20px, 4vw, 36px);
  display: block;
  padding-bottom: clamp(72px, 10vw, 140px);
  color: var(--yj-bone);
}

/* ---------- 首屏 ---------- */
.page-disclaimer .usage-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(20px, 4vw, 44px) 0 clamp(32px, 5vw, 60px);
  background:
    radial-gradient(115% 82% at 6% -12%, rgba(57, 242, 180, .13), transparent 56%),
    radial-gradient(100% 92% at 104% 112%, rgba(91, 108, 255, .18), transparent 62%),
    var(--yj-night);
  border-bottom: 1px solid var(--u-line);
}

.page-disclaimer .usage-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 20px;
  background-image: repeating-linear-gradient(90deg, var(--u-line) 0 1px, transparent 1px 26px);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  pointer-events: none;
}

.page-disclaimer .usage-hero__intro {
  margin-top: clamp(14px, 2.4vw, 26px);
}

.page-disclaimer .usage-hero__title {
  margin: 14px 0 0;
  font-family: var(--yj-font-squeeze);
  font-weight: 800;
  font-size: clamp(30px, 7vw, 62px);
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--yj-bone);
}

.page-disclaimer .usage-hero__title em {
  font-style: normal;
  background: linear-gradient(96deg, var(--yj-mint), var(--yj-amber));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-disclaimer .usage-hero__lede {
  margin-top: clamp(14px, 2vw, 20px);
  max-width: 62ch;
  color: rgba(244, 240, 230, .78);
}

.page-disclaimer .usage-hero__media {
  margin: clamp(22px, 3.6vw, 40px) 0 0;
  border-radius: var(--yj-r-md);
  overflow: hidden;
  border: 1px solid var(--u-line);
}

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

.page-disclaimer .usage-hero__ticker {
  margin-top: clamp(22px, 3.5vw, 34px);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--u-line);
  border: 1px solid var(--u-line);
  border-radius: var(--yj-r-md);
  overflow: hidden;
}

.page-disclaimer .usage-hero__cell {
  background: rgba(10, 24, 20, .82);
  padding: 14px clamp(14px, 2vw, 20px);
}

.page-disclaimer .usage-hero__cell span {
  display: block;
  font-family: var(--yj-font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--yj-muted);
}

.page-disclaimer .usage-hero__cell strong {
  display: block;
  margin-top: 6px;
  font-family: var(--yj-font-mono);
  font-weight: 600;
  font-size: clamp(15px, 2.2vw, 20px);
  color: var(--yj-mint);
}

/* ---------- 主体网格 ---------- */
.page-disclaimer .usage-body {
  padding-top: clamp(32px, 5vw, 64px);
}

.page-disclaimer .usage-body__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.5vw, 48px);
}

/* ---------- 编号目录 ---------- */
.page-disclaimer .usage-toc {
  padding: clamp(16px, 2.4vw, 22px);
  border: 1px solid var(--u-line);
  border-radius: var(--yj-r-md);
  background: linear-gradient(160deg, rgba(22, 51, 42, .82), rgba(10, 24, 20, .6));
}

.page-disclaimer .usage-toc__label {
  margin: 0 0 12px;
  font-family: var(--yj-font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--yj-amber);
}

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

.page-disclaimer .usage-toc__item {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 9px 13px;
  border-radius: var(--yj-cap);
  border: 1px solid var(--u-line);
  background: rgba(10, 24, 20, .5);
  color: var(--yj-bone);
  font-size: 13.5px;
  text-decoration: none;
  transition: background .3s var(--yj-ease), border-color .3s var(--yj-ease), color .3s var(--yj-ease);
}

.page-disclaimer .usage-toc__item:hover {
  background: rgba(57, 242, 180, .1);
  border-color: var(--u-line-mint);
  color: var(--yj-mint);
}

.page-disclaimer .usage-toc__item:focus-visible {
  outline: none;
  box-shadow: 0 0 0 2px var(--yj-mint);
}

.page-disclaimer .usage-toc__num {
  font-family: var(--yj-font-mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--yj-amber);
}

.page-disclaimer .usage-toc__cta {
  margin-top: 16px;
}

/* ---------- 规则区块 ---------- */
.page-disclaimer .usage-sections {
  display: block;
  min-width: 0;
}

.page-disclaimer .usage-block {
  position: relative;
  scroll-margin-top: calc(var(--yj-head) + 24px);
  padding: var(--u-pad);
  border: 1px solid var(--u-line);
  border-radius: var(--yj-r-lg);
  background: linear-gradient(160deg, rgba(22, 51, 42, .86), rgba(10, 24, 20, .72));
}

.page-disclaimer .usage-block + .usage-block {
  margin-top: clamp(18px, 2.6vw, 30px);
}

.page-disclaimer .usage-block--mint {
  border-color: var(--u-line-mint);
  background: linear-gradient(160deg, rgba(57, 242, 180, .10), rgba(10, 24, 20, .78) 64%);
}

.page-disclaimer .usage-block--amber {
  border-color: var(--u-line-amber);
  background: linear-gradient(160deg, rgba(240, 181, 66, .10), rgba(10, 24, 20, .78) 64%);
}

.page-disclaimer .usage-block--volt {
  border-color: var(--u-line-volt);
  background: linear-gradient(160deg, rgba(91, 108, 255, .12), rgba(10, 24, 20, .78) 64%);
}

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

.page-disclaimer .usage-block__num {
  font-family: var(--yj-font-mono);
  font-size: 13px;
  letter-spacing: .18em;
  color: var(--yj-amber);
}

.page-disclaimer .usage-block__title {
  margin: 0;
  font-family: var(--yj-font-serif);
  font-weight: 600;
  font-size: clamp(21px, 3vw, 28px);
  line-height: 1.32;
  color: var(--yj-bone);
}

.page-disclaimer .usage-block__lead {
  margin: 14px 0 0;
  max-width: 66ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: rgba(244, 240, 230, .8);
}

.page-disclaimer .usage-list {
  list-style: none;
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--u-line);
  border-radius: var(--yj-r-md);
  overflow: hidden;
}

.page-disclaimer .usage-list--tight {
  margin-top: clamp(12px, 1.8vw, 18px);
}

.page-disclaimer .usage-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  padding: 14px clamp(14px, 2vw, 20px);
  background: rgba(10, 24, 20, .62);
  font-size: 15.5px;
  line-height: 1.78;
  color: rgba(244, 240, 230, .86);
}

.page-disclaimer .usage-list li::before {
  content: "";
  width: 7px;
  height: 7px;
  margin-top: .66em;
  border-radius: 50%;
  background: var(--yj-mint);
  box-shadow: 0 0 0 3px rgba(57, 242, 180, .14);
}

.page-disclaimer .usage-block--amber .usage-list li::before {
  background: var(--yj-amber);
  box-shadow: 0 0 0 3px rgba(240, 181, 66, .16);
}

.page-disclaimer .usage-block--volt .usage-list li::before {
  background: var(--yj-volt);
  box-shadow: 0 0 0 3px rgba(91, 108, 255, .2);
}

/* ---------- 胶囊标签 ---------- */
.page-disclaimer .usage-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: clamp(16px, 2.4vw, 22px) 0 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .usage-tag {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border-radius: var(--yj-cap);
  border: 1px solid var(--u-line-mint);
  background: rgba(57, 242, 180, .08);
  color: var(--yj-mint);
  font-family: var(--yj-font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  white-space: nowrap;
}

.page-disclaimer .usage-tag--amber {
  border-color: var(--u-line-amber);
  background: rgba(240, 181, 66, .1);
  color: var(--yj-amber);
}

.page-disclaimer .usage-tag--clay {
  border-color: rgba(185, 106, 75, .45);
  background: rgba(185, 106, 75, .14);
  color: #E29E82;
}

.page-disclaimer .usage-tag--volt {
  border-color: rgba(91, 108, 255, .42);
  background: rgba(91, 108, 255, .14);
  color: #A9B2FF;
}

/* ---------- 联系信息 ---------- */
.page-disclaimer .usage-contact {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--u-line);
  border-radius: var(--yj-r-md);
  overflow: hidden;
}

.page-disclaimer .usage-contact__cell {
  padding: 16px clamp(14px, 2vw, 20px);
  background: rgba(10, 24, 20, .62);
}

.page-disclaimer .usage-contact__key {
  display: block;
  font-family: var(--yj-font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--yj-muted);
}

.page-disclaimer .usage-contact__val {
  display: block;
  margin-top: 8px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--yj-bone);
  word-break: break-word;
}

.page-disclaimer .usage-block__foot {
  margin: clamp(16px, 2.4vw, 22px) 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: rgba(244, 240, 230, .68);
}

.page-disclaimer .usage-block__foot a {
  color: var(--yj-mint);
  text-decoration: none;
  border-bottom: 1px solid var(--u-line-mint);
  padding-bottom: 1px;
}

.page-disclaimer .usage-block__foot a:hover {
  color: var(--yj-mist);
  border-bottom-color: var(--yj-mist);
}

.page-disclaimer .usage-block__foot a:focus-visible {
  outline: 2px solid var(--yj-mint);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---------- 浮动胶囊 ---------- */
.page-disclaimer .usage-dock {
  position: fixed;
  right: clamp(14px, 3vw, 30px);
  bottom: clamp(14px, 3vw, 30px);
  z-index: 40;
  box-shadow: 0 16px 36px rgba(0, 0, 0, .48);
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-disclaimer .usage-contact {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-disclaimer .usage-list li {
    padding: 15px clamp(16px, 2vw, 22px);
  }
}

@media (min-width: 760px) {
  .page-disclaimer .usage-hero__ticker {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1060px) {
  .page-disclaimer .usage-body__grid {
    grid-template-columns: 236px minmax(0, 1fr);
    align-items: start;
  }

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

  .page-disclaimer .usage-toc__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 4px;
  }

  .page-disclaimer .usage-toc__item {
    border-radius: var(--yj-r-sm);
    border-color: transparent;
    background: transparent;
    padding: 9px 11px;
  }

  .page-disclaimer .usage-toc__item:hover {
    border-color: var(--u-line-mint);
  }
}

@media (max-width: 560px) {
  .page-disclaimer .usage-dock {
    left: 14px;
    right: 14px;
    display: flex;
    justify-content: center;
  }

  .page-disclaimer .usage-hero__title {
    letter-spacing: -.01em;
  }
}
</main>