/* ============ 页面：使用说明与免责声明 ============ */
.page-disclaimer {
  --pd-flame: #FF4D00;
  --pd-hot: #E62E00;
  --pd-electric: #00E5FF;
  --pd-neon: #8A2BE2;
  --pd-green: #00FF88;
  --pd-smoke: #A0A0A0;
  --pd-cloud: #F5F5F5;
  --pd-deep: #0B0F1A;
  --pd-rock: #111827;
  --pd-line: rgba(245, 245, 245, 0.08);
  --pd-line-strong: rgba(245, 245, 245, 0.16);
  background-image:
    linear-gradient(rgba(245, 245, 245, 0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245, 245, 245, 0.022) 1px, transparent 1px);
  background-size: 24px 24px;
  overflow-x: hidden;
}

/* ---------- 首屏框景 ---------- */
.page-disclaimer .pd-stage {
  position: relative;
  padding: 1.75rem 0 3.5rem;
}
.page-disclaimer .pd-crumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.82rem;
  color: var(--pd-smoke);
  margin-bottom: 2rem;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}
.page-disclaimer .pd-crumb a {
  color: var(--pd-smoke);
  text-decoration: none;
  transition: color 0.2s ease;
}
.page-disclaimer .pd-crumb a:hover {
  color: var(--pd-flame);
}
.page-disclaimer .pd-crumb__sep {
  color: var(--pd-flame);
  opacity: 0.7;
}
.page-disclaimer .pd-crumb__current {
  color: var(--pd-cloud);
}

.page-disclaimer .pd-stage__grid {
  display: grid;
  gap: 2.25rem;
  position: relative;
  border: 1px solid var(--pd-line-strong);
  background: rgba(17, 24, 39, 0.42);
  padding: 2rem 1.5rem;
}
.page-disclaimer .pd-stage__grid::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 56px;
  height: 4px;
  background: linear-gradient(90deg, var(--pd-flame), var(--pd-hot));
}
.page-disclaimer .pd-stage__grid::after {
  content: "";
  position: absolute;
  bottom: 0;
  right: 0;
  width: 38px;
  height: 38px;
  border-bottom: 3px solid var(--pd-electric);
  border-right: 3px solid var(--pd-electric);
  opacity: 0.7;
}
.page-disclaimer .pd-stage__doc {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--pd-electric);
  margin: 0 0 0.9rem;
}
.page-disclaimer .pd-stage h1 {
  font-size: clamp(2.05rem, 5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--pd-cloud);
  margin: 0 0 1.1rem;
}
.page-disclaimer .pd-stage__lead {
  font-size: 1rem;
  line-height: 1.85;
  color: var(--pd-smoke);
  margin: 0 0 1.25rem;
}
.page-disclaimer .pd-stage__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.page-disclaimer .pd-stage__tip {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--pd-smoke);
  margin: 1.35rem 0 0;
  letter-spacing: 0.06em;
}

.page-disclaimer .pd-stage__img-frame {
  position: relative;
  overflow: hidden;
}
.page-disclaimer .pd-stage__img-frame img {
  display: block;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}
.page-disclaimer .pd-stage__caption {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.7rem;
  padding-top: 0.6rem;
  border-top: 1px solid var(--pd-line);
  font-size: 0.8rem;
  color: var(--pd-smoke);
}
.page-disclaimer .pd-stage__slash {
  position: relative;
  height: 36px;
  margin-top: -18px;
  z-index: 2;
}
.page-disclaimer .pd-stage__slash::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 72%;
  background: linear-gradient(135deg, var(--pd-flame), var(--pd-hot));
  clip-path: polygon(0 0, 76% 0, 100% 100%, 0 100%);
  opacity: 0.85;
}
.page-disclaimer .pd-stage__slash::after {
  content: "";
  position: absolute;
  left: 64%;
  top: 0;
  bottom: 0;
  width: 40%;
  background: var(--pd-electric);
  clip-path: polygon(0 0, 18% 0, 100% 100%, 30% 100%);
  opacity: 0.28;
}

/* ---------- 数据快览 ---------- */
.page-disclaimer .pd-snapshot {
  border-top: 1px solid var(--pd-line);
  border-bottom: 1px solid var(--pd-line);
  background: rgba(17, 24, 39, 0.5);
}
.page-disclaimer .pd-snapshot__inner {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}
.page-disclaimer .pd-snapshot__item {
  padding: 1.5rem 0.75rem;
  text-align: center;
  border-right: 1px solid var(--pd-line);
}
.page-disclaimer .pd-snapshot__item:last-child {
  border-right: none;
}
.page-disclaimer .pd-snapshot__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(1.55rem, 6vw, 2.5rem);
  font-weight: 800;
  line-height: 1;
  color: var(--pd-flame);
}
.page-disclaimer .pd-snapshot__item:nth-child(3) .pd-snapshot__num {
  color: var(--pd-electric);
}
.page-disclaimer .pd-snapshot__label {
  display: block;
  margin-top: 0.55rem;
  font-size: 0.78rem;
  line-height: 1.5;
  color: var(--pd-smoke);
}

/* ---------- 条款主区 ---------- */
.page-disclaimer .pd-clauses {
  padding: 3.5rem 0 4rem;
}
.page-disclaimer .pd-clauses__layout {
  display: grid;
  gap: 2rem;
  align-items: start;
}

/* 左侧索引 */
.page-disclaimer .pd-clauses__index {
  position: relative;
  padding: 1.9rem 1.5rem 1.6rem;
  border: 1px solid var(--pd-line);
  background:
    radial-gradient(circle at 100% 0%, rgba(255, 77, 0, 0.07), transparent 55%),
    rgba(17, 24, 39, 0.55);
}
.page-disclaimer .pd-clauses__index::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--pd-flame), var(--pd-hot));
}
.page-disclaimer .pd-clauses__index-heading {
  margin: 0;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--pd-flame);
  font-family: var(--font-mono);
}
.page-disclaimer .pd-clauses__toc {
  list-style: none;
  margin: 1.3rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.3rem;
}
.page-disclaimer .pd-clauses__toc a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 0.72rem 0.6rem;
  color: var(--pd-smoke);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, background 0.2s, border-color 0.2s;
}
.page-disclaimer .pd-clauses__toc a:hover {
  color: var(--pd-cloud);
  background: rgba(255, 77, 0, 0.07);
  border-bottom-color: rgba(255, 77, 0, 0.35);
}
.page-disclaimer .pd-clauses__toc-num {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--pd-flame);
}
.page-disclaimer .pd-clauses__index-note {
  margin-top: 1.6rem;
  padding-top: 1.3rem;
  border-top: 1px solid var(--pd-line);
}
.page-disclaimer .pd-clauses__index-note p {
  margin: 0 0 1rem;
  font-size: 0.85rem;
  line-height: 1.7;
  color: var(--pd-smoke);
}

/* 右侧条款列表 */
.page-disclaimer .pd-clauses__detail {
  display: grid;
  gap: 2.25rem;
}

/* 单个条款卡片 */
.page-disclaimer .pd-clause {
  position: relative;
  background: rgba(17, 24, 39, 0.62);
  border: 1px solid var(--pd-line);
  border-left: 3px solid var(--pd-flame);
  padding: 2rem 1.5rem 1.8rem;
  overflow: hidden;
}
.page-disclaimer .pd-clause__serial {
  position: absolute;
  top: -0.5rem;
  right: 1rem;
  font-family: var(--font-mono);
  font-size: 4.5rem;
  font-weight: 800;
  line-height: 1;
  color: rgba(255, 77, 0, 0.07);
  -webkit-text-stroke: 1px rgba(255, 77, 0, 0.13);
  pointer-events: none;
  z-index: 0;
}
.page-disclaimer .pd-clause__head {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: flex-start;
  gap: 0.95rem;
}
.page-disclaimer .pd-clause__icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--pd-line-strong);
  background: var(--pd-deep);
}
.page-disclaimer .pd-clause__icon svg {
  width: 22px;
  height: 22px;
}
.page-disclaimer .pd-clause__icon--tip {
  color: var(--pd-green);
  border-color: rgba(0, 255, 136, 0.3);
}
.page-disclaimer .pd-clause__icon--info {
  color: var(--pd-electric);
  border-color: rgba(0, 229, 255, 0.3);
}
.page-disclaimer .pd-clause__icon--forbid {
  color: var(--pd-hot);
  border-color: rgba(230, 46, 0, 0.35);
}
.page-disclaimer .pd-clause__icon--warn {
  color: var(--pd-flame);
  border-color: rgba(255, 77, 0, 0.35);
}
.page-disclaimer .pd-clause__kicker {
  margin: 0 0 0.1rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--pd-flame);
}
.page-disclaimer .pd-clause__head h2 {
  margin: 0;
  font-size: clamp(1.3rem, 2.6vw, 1.85rem);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--pd-cloud);
}
.page-disclaimer .pd-clause__body {
  position: relative;
  z-index: 1;
  margin-top: 1.4rem;
}
.page-disclaimer .pd-clause__body p {
  margin: 0 0 1rem;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--pd-smoke);
}
.page-disclaimer .pd-clause__body p:last-child {
  margin-bottom: 0;
}
.page-disclaimer .pd-clause__list {
  margin: 1rem 0 1.2rem;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.55rem;
}
.page-disclaimer .pd-clause__list li {
  position: relative;
  padding-left: 1.35rem;
  font-size: 0.93rem;
  line-height: 1.7;
  color: var(--pd-smoke);
}
.page-disclaimer .pd-clause__list li::before {
  content: "—";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--pd-flame);
  font-family: var(--font-mono);
}

/* 提示框 */
.page-disclaimer .pd-clause__callout {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-top: 1.35rem;
  padding: 1rem 1.15rem;
  background: rgba(245, 245, 245, 0.035);
  border-left: 3px solid;
}
.page-disclaimer .pd-clause__callout--tip {
  border-color: var(--pd-green);
}
.page-disclaimer .pd-clause__callout--forbid {
  border-color: var(--pd-hot);
}
.page-disclaimer .pd-clause__callout--warn {
  border-color: var(--pd-flame);
}
.page-disclaimer .pd-clause__callout-label {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding-top: 0.25rem;
}
.page-disclaimer .pd-clause__callout--tip .pd-clause__callout-label {
  color: var(--pd-green);
}
.page-disclaimer .pd-clause__callout--forbid .pd-clause__callout-label {
  color: var(--pd-hot);
}
.page-disclaimer .pd-clause__callout--warn .pd-clause__callout-label {
  color: var(--pd-flame);
}
.page-disclaimer .pd-clause__callout p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--pd-smoke);
}

/* 折叠细节 */
.page-disclaimer .pd-clause__fold {
  margin-top: 1.5rem;
  border-top: 1px dashed var(--pd-line-strong);
  padding-top: 1rem;
}
.page-disclaimer .pd-clause__fold summary {
  cursor: pointer;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--pd-cloud);
  user-select: none;
}
.page-disclaimer .pd-clause__fold summary::-webkit-details-marker {
  display: none;
}
.page-disclaimer .pd-clause__fold summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--pd-flame);
  font-size: 1rem;
  line-height: 1;
}
.page-disclaimer .pd-clause__fold[open] summary::before {
  content: "–";
}
.page-disclaimer .pd-clause__fold ul {
  margin: 1rem 0 0;
  padding-left: 0;
  list-style: none;
  display: grid;
  gap: 0.45rem;
}
.page-disclaimer .pd-clause__fold li {
  position: relative;
  padding-left: 1.2rem;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--pd-smoke);
}
.page-disclaimer .pd-clause__fold li::before {
  content: "·";
  position: absolute;
  left: 0;
  color: var(--pd-electric);
  font-weight: 700;
}

/* 条款之间刻度尺 */
.page-disclaimer .pd-clause:not(:last-child)::after {
  content: "";
  display: block;
  height: 20px;
  margin: 0.5rem 0 -0.5rem;
  background: linear-gradient(90deg, var(--pd-line-strong) 0 2px, transparent 2px 12px);
  background-size: 12px 2px;
  background-repeat: repeat-x;
  background-position: bottom;
}

/* ---------- 关联入口 ---------- */
.page-disclaimer .pd-related {
  padding: 3rem 0;
  border-top: 1px solid var(--pd-line);
  background: rgba(17, 24, 39, 0.35);
}
.page-disclaimer .pd-related__inner {
  display: grid;
  gap: 2.2rem;
}
.page-disclaimer .pd-related__kicker {
  margin: 0 0 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--pd-flame);
}
.page-disclaimer .pd-related h2 {
  margin: 0 0 0.8rem;
  font-size: clamp(1.45rem, 3vw, 2.15rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--pd-cloud);
}
.page-disclaimer .pd-related p {
  margin: 0 0 1.3rem;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--pd-smoke);
}
.page-disclaimer .pd-related p a {
  color: var(--pd-electric);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, 0.3);
  transition: border-color 0.2s;
}
.page-disclaimer .pd-related p a:hover {
  border-bottom-color: var(--pd-electric);
}
.page-disclaimer .pd-related__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.page-disclaimer .pd-related__links {
  display: grid;
  gap: 0.6rem;
}
.page-disclaimer .pd-related__link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.2rem;
  background: rgba(17, 24, 39, 0.62);
  border: 1px solid var(--pd-line);
  color: var(--pd-cloud);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  transition: border-color 0.2s, transform 0.2s, background 0.2s;
}
.page-disclaimer .pd-related__link:hover {
  border-color: rgba(255, 77, 0, 0.5);
  background: rgba(255, 77, 0, 0.05);
  transform: translateX(6px);
}
.page-disclaimer .pd-related__link-num {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--pd-flame);
}
.page-disclaimer .pd-related__link-arrow {
  margin-left: auto;
  font-family: var(--font-mono);
  color: var(--pd-electric);
  font-weight: 700;
}

/* ---------- 桌面端增强 ---------- */
@media (min-width: 1100px) {
  .page-disclaimer .pd-stage {
    padding: 2.5rem 0 4.5rem;
  }
  .page-disclaimer .pd-stage__grid {
    grid-template-columns: 1.1fr 0.9fr;
    gap: 4rem;
    align-items: center;
    padding: 2.75rem 2.5rem;
  }
  .page-disclaimer .pd-stage h1 {
    font-size: clamp(2.6rem, 4.5vw, 4rem);
  }
  .page-disclaimer .pd-stage__img-frame {
    margin-right: 0.5rem;
  }

  .page-disclaimer .pd-clauses {
    padding: 5rem 0 5.5rem;
  }
  .page-disclaimer .pd-clauses__layout {
    grid-template-columns: 300px 1fr;
    gap: 3.5rem;
  }
  .page-disclaimer .pd-clauses__index {
    position: sticky;
    top: 120px;
  }
  .page-disclaimer .pd-clauses__detail {
    gap: 2.5rem;
  }
  .page-disclaimer .pd-clause {
    padding: 2.4rem 2.25rem 2.1rem;
  }
  .page-disclaimer .pd-clause__serial {
    font-size: 6rem;
  }

  .page-disclaimer .pd-related {
    padding: 4rem 0;
  }
  .page-disclaimer .pd-related__inner {
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
  }
}