/* ===== 使用说明页 · page-disclaimer ===== */
.page-disclaimer {
  --disc-clause-indent: clamp(0px, 2vw, 24px);
  display: block;
  padding-bottom: clamp(48px, 8vw, 96px);
}

/* —— 面包屑 —— */
.page-disclaimer .crumbs {
  padding-block: clamp(18px, 3vw, 30px) clamp(6px, 1.2vw, 12px);
}
.page-disclaimer .crumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 0;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-body);
  font-size: var(--fs-2);
  color: var(--muted);
}
.page-disclaimer .crumbs li + li::before {
  content: "/";
  margin-inline: 10px;
  color: var(--line);
}
.page-disclaimer .crumbs a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.page-disclaimer .crumbs a:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}
.page-disclaimer .crumbs a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}
.page-disclaimer .crumbs [aria-current="page"] {
  color: var(--white);
  font-weight: 500;
}

/* —— 首屏 —— */
.page-disclaimer .disc-hero {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 4vw, 38px);
  padding-block: clamp(22px, 4vw, 42px) clamp(30px, 5vw, 58px);
  isolation: isolate;
}
.page-disclaimer .disc-hero::before {
  content: "";
  position: absolute;
  inset-block: -18%;
  inset-inline-start: -6%;
  inline-size: 48%;
  background: radial-gradient(closest-side, rgba(43, 245, 208, .10), transparent 100%);
  pointer-events: none;
  z-index: 0;
}
.page-disclaimer .disc-hero::after {
  content: "";
  position: absolute;
  inset-block: 0;
  inset-inline-start: 0;
  inline-size: min(54%, 520px);
  background-image: repeating-linear-gradient(
    -20deg,
    transparent 0 17px,
    rgba(38, 49, 74, .55) 17px 18px
  );
  -webkit-mask-image: linear-gradient(96deg, rgba(0, 0, 0, .9), transparent 74%);
  mask-image: linear-gradient(96deg, rgba(0, 0, 0, .9), transparent 74%);
  pointer-events: none;
  z-index: 0;
}
.page-disclaimer .disc-hero-copy,
.page-disclaimer .disc-hero-figure {
  position: relative;
  z-index: 1;
  min-width: 0;
}

.page-disclaimer .disc-kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-2);
  letter-spacing: .18em;
  color: var(--orange);
}
.page-disclaimer h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(38px, 6.4vw, 78px);
  line-height: .98;
  letter-spacing: -.02em;
  color: var(--white);
}
.page-disclaimer .disc-lede {
  margin: 20px 0 0;
  max-width: 60ch;
  font-size: clamp(17px, 1.5vw, 19px);
  line-height: 1.9;
  color: rgba(242, 245, 247, .84);
}

/* —— 三枚要点锚点 —— */
.page-disclaimer .disc-anchors {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
}
.page-disclaimer .disc-anchor {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 11px 18px 11px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--glass);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  color: var(--white);
  font-size: var(--fs-2);
  line-height: 1.35;
  text-decoration: none;
  transition: border-color var(--dur) var(--ease),
              background-color var(--dur) var(--ease),
              transform var(--dur) var(--ease);
}
.page-disclaimer .disc-anchor:hover {
  border-color: var(--cyan);
  background: var(--cyan-soft);
  transform: translateY(-3px);
}
.page-disclaimer .disc-anchor:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}
.page-disclaimer .disc-anchor-num {
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  letter-spacing: .1em;
  color: var(--orange);
}

.page-disclaimer .disc-hero-figure {
  margin: 0;
}

/* —— 编号条款 —— */
.page-disclaimer .disc-clause {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  padding-block: clamp(30px, 4.6vw, 56px);
}
.page-disclaimer .disc-clause::before {
  content: "";
  position: absolute;
  inset-inline: 0;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--line), rgba(38, 49, 74, .22) 62%, transparent);
}
.page-disclaimer .disc-clause-num {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(46px, 8vw, 92px);
  line-height: .82;
  letter-spacing: -.04em;
  font-variant-numeric: tabular-nums;
  color: rgba(255, 106, 26, .26);
  -webkit-text-stroke: 1px rgba(255, 106, 26, .82);
}
.page-disclaimer .disc-clause-content {
  min-width: 0;
}
.page-disclaimer .disc-clause-title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(23px, 3vw, 34px);
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--white);
}
.page-disclaimer .disc-clause-content p {
  margin: 0 0 16px;
  max-width: 76ch;
  font-size: var(--fs-3);
  line-height: 1.95;
  color: rgba(242, 245, 247, .82);
}
.page-disclaimer .disc-clause-content p:last-child {
  margin-bottom: 0;
}
.page-disclaimer .disc-clause-content strong {
  color: var(--white);
  font-weight: 600;
}
.page-disclaimer .disc-clause-content a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(43, 245, 208, .38);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.page-disclaimer .disc-clause-content a:hover {
  border-bottom-color: var(--cyan);
}
.page-disclaimer .disc-clause-content a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* —— 底部版本条 —— */
.page-disclaimer .disc-version {
  position: relative;
  margin-top: clamp(40px, 6vw, 76px);
  padding-top: 24px;
}
.page-disclaimer .disc-version::before {
  content: "";
  position: absolute;
  inset-inline: 0;
  top: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--clay), rgba(181, 69, 43, .28) 34%, transparent 82%);
}
.page-disclaimer .disc-version-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-1);
  font-weight: 400;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--muted);
}
.page-disclaimer .disc-version-line {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px 28px;
}
.page-disclaimer .disc-version-stamp {
  position: relative;
  display: inline-block;
}
.page-disclaimer .disc-version-num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--fs-4);
  font-variant-numeric: tabular-nums;
  color: var(--cyan);
  border-bottom: 1px dashed rgba(43, 245, 208, .45);
  cursor: help;
}
.page-disclaimer .disc-version-num:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 5px;
}
.page-disclaimer .disc-version-pop {
  position: absolute;
  inset-inline-start: 0;
  bottom: calc(100% + 14px);
  width: min(320px, 80vw);
  padding: 13px 16px;
  border: 1px solid var(--glass-line);
  border-radius: var(--radius);
  background: var(--panel);
  color: var(--white);
  font-size: var(--fs-2);
  line-height: 1.7;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  pointer-events: none;
  transition: opacity var(--dur) var(--ease),
              transform var(--dur) var(--ease),
              visibility var(--dur) var(--ease);
  z-index: 6;
}
.page-disclaimer .disc-version-stamp:hover .disc-version-pop,
.page-disclaimer .disc-version-num:focus-visible ~ .disc-version-pop {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.page-disclaimer .disc-version-meta {
  font-size: var(--fs-2);
  line-height: 1.7;
  color: var(--muted);
}

/* —— 桌面排版 —— */
@media (min-width: 900px) {
  .page-disclaimer .disc-hero {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    align-items: center;
    gap: clamp(32px, 4.5vw, 76px);
  }
  .page-disclaimer .disc-hero-figure {
    margin-inline-start: 8%;
  }
}

@media (min-width: 880px) {
  .page-disclaimer .disc-clause {
    grid-template-columns: 148px minmax(0, 1fr);
    gap: clamp(20px, 3.4vw, 60px);
    align-items: start;
  }
  .page-disclaimer .disc-clause-num {
    position: sticky;
    top: calc(var(--bar-h) + 34px);
  }
}

/* —— 窄屏收敛 —— */
@media (max-width: 560px) {
  .page-disclaimer .disc-anchors {
    gap: 8px;
  }
  .page-disclaimer .disc-anchor {
    width: 100%;
    justify-content: flex-start;
  }
  .page-disclaimer .disc-clause-content p {
    font-size: 16px;
    line-height: 1.9;
  }
  .page-disclaimer .disc-version-pop {
    width: min(276px, 84vw);
  }
}

/* —— 动效降级 —— */
@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .disc-anchor,
  .page-disclaimer .disc-version-pop,
  .page-disclaimer .crumbs a,
  .page-disclaimer .disc-clause-content a {
    transition: none;
  }
  .page-disclaimer .disc-anchor:hover {
    transform: none;
  }
}