.page-disclaimer {
  --pd-line: 3px;
  --pd-rule: 1px solid rgba(59, 63, 70, .28);
  --pd-warn: #B45F3F;
}

/* ---------- 首屏 ---------- */
.page-disclaimer .usage-hero {
  position: relative;
  background: var(--indigo);
  color: var(--cream);
  padding: clamp(28px, 5vw, 56px) 0 clamp(36px, 6vw, 72px);
  overflow: hidden;
}
.page-disclaimer .usage-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(120% 90% at 88% 10%, rgba(242, 140, 40, .22), transparent 60%),
    linear-gradient(180deg, rgba(11, 15, 26, .55) 0%, rgba(11, 15, 26, 0) 55%);
  pointer-events: none;
}
.page-disclaimer .usage-hero__grid {
  position: relative;
  display: grid;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
}
.page-disclaimer .breadcrumb {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.page-disclaimer .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  color: rgba(246, 241, 231, .68);
}
.page-disclaimer .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(246, 241, 231, .38);
}
.page-disclaimer .breadcrumb a {
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 140, 40, .5);
}
.page-disclaimer .breadcrumb a:hover { border-bottom-color: var(--orange); }

.page-disclaimer .eyebrow {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--moss);
  margin: 0 0 14px;
}
.page-disclaimer .usage-hero h1 {
  font-size: clamp(2.1rem, 5.6vw, 4.4rem);
  line-height: 1.06;
  letter-spacing: -.02em;
  margin: 0 0 20px;
  font-weight: 900;
  max-width: 15ch;
}
.page-disclaimer .usage-hero h1 .hl {
  color: var(--orange);
  display: inline-block;
}
.page-disclaimer .usage-hero__lead {
  font-size: clamp(1rem, 1.35vw, 1.1rem);
  line-height: 1.85;
  color: rgba(246, 241, 231, .86);
  max-width: 56ch;
  margin: 0 0 26px;
}
.page-disclaimer .usage-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 30px;
}
.page-disclaimer .usage-hero__kpis {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--pd-line) solid rgba(246, 241, 231, .2);
}
.page-disclaimer .usage-hero__kpis li {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 0;
  border-bottom: var(--pd-rule);
}
.page-disclaimer .kpi-num {
  font-family: var(--mono);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--orange);
  min-width: 6ch;
}
.page-disclaimer .kpi-txt {
  font-size: .92rem;
  color: rgba(246, 241, 231, .78);
}
.page-disclaimer .usage-hero__figure {
  margin: 0;
  border: var(--pd-line) solid var(--ink);
  box-shadow: var(--shadow);
  background: var(--indigo-l);
}
.page-disclaimer .usage-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 2 / 1;
  filter: saturate(.9) contrast(1.05);
}
.page-disclaimer .media-frame__caption {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: rgba(246, 241, 231, .7);
  padding: 12px 14px;
  border-top: var(--pd-rule);
  line-height: 1.6;
}
.page-disclaimer .usage-hero__beam {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--orange) 0%, var(--clay) 45%, var(--jade) 100%);
}

/* ---------- 通用小节头 ---------- */
.page-disclaimer .usage-sec-head {
  margin-bottom: clamp(20px, 3vw, 34px);
  border-bottom: var(--pd-line) solid var(--ink);
  padding-bottom: 16px;
}
.page-disclaimer .usage-sec-head h2 {
  font-size: clamp(1.5rem, 3vw, 2.3rem);
  line-height: 1.2;
  margin: 10px 0 8px;
  font-weight: 900;
  color: var(--ink);
}
.page-disclaimer .usage-sec-head__sub {
  margin: 0;
  color: var(--rock);
  font-size: .96rem;
}

/* ---------- 目录 ---------- */
.page-disclaimer .usage-toc {
  background: var(--paper);
}
.page-disclaimer .usage-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}
.page-disclaimer .usage-toc__list a {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "idx name"
    "idx note";
  align-items: center;
  gap: 2px 16px;
  padding: 16px 18px;
  border: var(--pd-line) solid var(--ink);
  box-shadow: var(--shadow-sm);
  background: var(--cream);
  color: var(--ink);
  text-decoration: none;
  transition: transform .18s var(--ease), background .18s var(--ease), box-shadow .18s var(--ease);
}
.page-disclaimer .usage-toc__list a:hover,
.page-disclaimer .usage-toc__list a:focus-visible {
  transform: translate(-3px, -3px);
  box-shadow: 9px 9px 0 var(--ink);
  background: #fff;
}
.page-disclaimer .toc-idx {
  grid-area: idx;
  font-family: var(--mono);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--clay);
  line-height: 1;
}
.page-disclaimer .toc-name {
  grid-area: name;
  font-weight: 700;
  font-size: 1.02rem;
}
.page-disclaimer .toc-note {
  grid-area: note;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  color: var(--rock);
}

/* ---------- 条款主体 ---------- */
.page-disclaimer .usage-body {
  background: linear-gradient(180deg, var(--paper) 0%, var(--cream) 100%);
}
.page-disclaimer .clause {
  border-top: var(--pd-line) solid var(--ink);
  padding: clamp(26px, 4vw, 44px) 0;
}
.page-disclaimer .clause:last-child { padding-bottom: 0; }

.page-disclaimer .clause__head {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-areas:
    "num title"
    "hint title";
  align-items: baseline;
  gap: 4px 16px;
  margin-bottom: 22px;
}
.page-disclaimer .clause__num {
  grid-area: num;
  font-family: var(--mono);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  color: var(--orange);
  line-height: 1;
  -webkit-text-stroke: 1px rgba(11, 15, 26, .12);
}
.page-disclaimer .clause__title {
  grid-area: title;
  font-size: clamp(1.25rem, 2.4vw, 1.9rem);
  font-weight: 900;
  color: var(--ink);
  margin: 0;
  line-height: 1.22;
}
.page-disclaimer .clause__hint {
  grid-area: hint;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--clay);
  margin: 0;
}

.page-disclaimer .clause__grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 28px);
}
.page-disclaimer .prose {
  max-width: 74ch;
}
.page-disclaimer .prose p {
  margin: 0 0 1.05em;
  color: var(--rock);
  line-height: 1.85;
  font-size: clamp(.96rem, 1.05vw, 1.03rem);
}
.page-disclaimer .prose p:last-child { margin-bottom: 0; }

.page-disclaimer .clause__side {
  background: var(--cream);
  border: var(--pd-line) solid var(--ink);
  box-shadow: var(--shadow-sm);
  padding: 18px 20px;
}
.page-disclaimer .clause__side.card--warn {
  background: #F3E5DC;
  border-color: var(--pd-warn);
  box-shadow: var(--shadow-sm);
}
.page-disclaimer .warn-text {
  margin: 10px 0 0;
  color: #6E3623;
  line-height: 1.8;
  font-size: .95rem;
  font-weight: 500;
}
.page-disclaimer .tip-list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
}
.page-disclaimer .tip-list li {
  position: relative;
  padding: 9px 0 9px 18px;
  border-bottom: var(--pd-rule);
  color: var(--rock);
  font-size: .93rem;
  line-height: 1.7;
}
.page-disclaimer .tip-list li:last-child { border-bottom: 0; }
.page-disclaimer .tip-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 17px;
  width: 7px;
  height: 7px;
  background: var(--jade);
}

.page-disclaimer .clause__links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
  margin-top: 22px;
  padding-top: 14px;
  border-top: var(--pd-rule);
}
.page-disclaimer .mini-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--rock);
  opacity: .7;
}
.page-disclaimer .clause__links a {
  font-size: .93rem;
  color: var(--indigo);
  text-decoration: none;
  border-bottom: 2px solid rgba(242, 140, 40, .55);
  padding-bottom: 1px;
}
.page-disclaimer .clause__links a:hover,
.page-disclaimer .clause__links a:focus-visible {
  border-bottom-color: var(--orange);
  color: var(--clay);
}

/* ---------- 标签页 ---------- */
.page-disclaimer .clause__fold { margin-bottom: 4px; }
.page-disclaimer .tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}
.page-disclaimer .tablist button {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .06em;
  padding: 9px 14px;
  background: transparent;
  color: var(--rock);
  border: 2px solid rgba(59, 63, 70, .4);
  cursor: pointer;
  transition: background .16s var(--ease), color .16s var(--ease), border-color .16s var(--ease);
}
.page-disclaimer .tablist button:hover { border-color: var(--ink); color: var(--ink); }
.page-disclaimer .tablist button[aria-selected="true"] {
  background: var(--indigo);
  color: var(--cream);
  border-color: var(--ink);
  box-shadow: var(--shadow-sm);
}
.page-disclaimer .tabpanel {
  border: var(--pd-line) solid var(--ink);
  background: var(--cream);
  padding: 20px 22px;
  box-shadow: var(--shadow-sm);
}
.page-disclaimer .tabpanel p {
  margin: 0 0 14px;
  color: var(--rock);
  line-height: 1.85;
  font-size: .97rem;
  max-width: 74ch;
}
.page-disclaimer .rule-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
}
.page-disclaimer .rule-list li {
  position: relative;
  padding: 11px 0 11px 26px;
  border-top: var(--pd-rule);
  color: var(--rock);
  font-size: .93rem;
  line-height: 1.7;
}
.page-disclaimer .rule-list li::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 19px;
  width: 6px;
  height: 6px;
  background: var(--orange);
}

/* ---------- 时间轴 ---------- */
.page-disclaimer .timeline {
  list-style: none;
  margin: 24px 0 0;
  padding: 0 0 0 20px;
  border-left: 2px solid rgba(59, 63, 70, .3);
  display: grid;
  gap: 16px;
}
.page-disclaimer .timeline__item {
  position: relative;
  padding-left: 6px;
}
.page-disclaimer .node-mark {
  position: absolute;
  left: -27px;
  top: 6px;
  width: 12px;
  height: 12px;
  background: var(--rock);
  border: 2px solid var(--cream);
  box-shadow: 0 0 0 2px rgba(59, 63, 70, .35);
  transition: background .3s var(--ease), box-shadow .3s var(--ease);
}
.page-disclaimer .timeline__item.is-lit .node-mark {
  background: var(--orange);
  box-shadow: 0 0 0 2px rgba(242, 140, 40, .35);
}
.page-disclaimer .timeline__ver {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--clay);
  margin: 0 0 3px;
  font-weight: 700;
}
.page-disclaimer .timeline__txt {
  margin: 0;
  color: var(--rock);
  font-size: .94rem;
  line-height: 1.7;
}

/* ---------- 联系面板 ---------- */
.page-disclaimer .contact-panel {
  margin-top: 24px;
  border: var(--pd-line) solid var(--ink);
  background: var(--indigo);
  color: var(--cream);
  box-shadow: var(--shadow);
}
.page-disclaimer .contact-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 16px 18px;
  border-bottom: 1px solid rgba(246, 241, 231, .16);
  align-items: center;
}
.page-disclaimer .contact-row:last-of-type { border-bottom: 0; }
.page-disclaimer .contact-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--moss);
}
.page-disclaimer .contact-value {
  font-size: 1rem;
  font-weight: 600;
  word-break: break-all;
  color: var(--cream);
}
.page-disclaimer .copy-btn {
  justify-self: start;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: .06em;
  padding: 7px 13px;
  background: transparent;
  color: var(--orange);
  border: 2px solid var(--orange);
  cursor: pointer;
  transition: background .16s var(--ease), color .16s var(--ease);
}
.page-disclaimer .copy-btn:hover { background: var(--orange); color: var(--ink); }
.page-disclaimer .copy-btn.is-copied {
  background: var(--jade);
  border-color: var(--jade);
  color: var(--cream);
}
.page-disclaimer .contact-panel__note {
  margin: 0;
  padding: 14px 18px 18px;
  font-size: .86rem;
  line-height: 1.7;
  color: rgba(246, 241, 231, .72);
  border-top: 1px solid rgba(246, 241, 231, .16);
}

/* ---------- 收束 ---------- */
.page-disclaimer .usage-outro {
  background: var(--paper);
}
.page-disclaimer .usage-outro__inner {
  display: grid;
  gap: 22px;
  border: var(--pd-line) solid var(--ink);
  box-shadow: var(--shadow);
  background: var(--cream);
  padding: clamp(22px, 3.4vw, 40px);
}
.page-disclaimer .usage-outro__inner h2 {
  font-size: clamp(1.4rem, 2.8vw, 2.1rem);
  font-weight: 900;
  margin: 10px 0 10px;
  color: var(--ink);
}
.page-disclaimer .usage-outro__txt {
  margin: 0;
  color: var(--rock);
  line-height: 1.85;
  max-width: 60ch;
}
.page-disclaimer .usage-outro__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: flex-start;
}

/* ---------- 渐显 ---------- */
.page-disclaimer [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .5s var(--ease), transform .5s var(--ease);
}
.page-disclaimer [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}
.page-disclaimer .timeline__item {
  opacity: 1;
}

/* ---------- 平板 ---------- */
@media (min-width: 640px) {
  .page-disclaimer .usage-hero__kpis {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-disclaimer .usage-hero__kpis li {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
    padding: 16px 16px 16px 0;
    border-bottom: 0;
    border-right: var(--pd-rule);
  }
  .page-disclaimer .usage-hero__kpis li:last-child { border-right: 0; }
  .page-disclaimer .contact-row {
    grid-template-columns: 130px 1fr auto;
    gap: 16px;
  }
  .page-disclaimer .copy-btn { justify-self: end; }
  .page-disclaimer .usage-toc__list {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 960px) {
  .page-disclaimer .usage-hero__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    align-items: center;
  }
  .page-disclaimer .usage-hero__figure {
    transform: translateY(6px);
  }
  .page-disclaimer .clause__grid {
    grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  }
  .page-disclaimer .clause__grid--flip {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.55fr);
  }
  .page-disclaimer .usage-toc__list {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-disclaimer .usage-outro__inner {
    grid-template-columns: 1fr auto;
    align-items: center;
  }
  .page-disclaimer .usage-outro__acts {
    flex-direction: column;
    align-items: stretch;
  }
  .page-disclaimer .timeline {
    grid-template-columns: repeat(2, 1fr);
    column-gap: 32px;
    border-left: 0;
    padding-left: 0;
    border-top: 2px solid rgba(59, 63, 70, .3);
    padding-top: 20px;
  }
  .page-disclaimer .node-mark {
    left: 0;
    top: -27px;
  }
  .page-disclaimer .timeline__item { padding-left: 22px; }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .page-disclaimer .usage-toc__list a {
    transition: none;
  }
  .page-disclaimer .usage-toc__list a:hover {
    transform: none;
    box-shadow: var(--shadow-sm);
  }
}