.page-disclaimer .u-wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--edge);
  padding-bottom: clamp(40px, 7vw, 80px);
}

.page-disclaimer .breadcrumb {
  padding-block: clamp(14px, 2.4vw, 22px) 0;
}

/* ---------- 首屏 ---------- */
.page-disclaimer .u-hero {
  position: relative;
  padding-block: clamp(18px, 3.2vw, 34px) clamp(14px, 2.4vw, 24px);
}

.page-disclaimer .u-hero::before {
  content: "";
  position: absolute;
  left: 50%;
  top: -12%;
  width: min(820px, 94vw);
  height: 360px;
  transform: translateX(-50%);
  background:
    radial-gradient(closest-side, rgba(43, 245, 192, 0.16), transparent 72%),
    radial-gradient(closest-side at 78% 40%, rgba(124, 107, 255, 0.14), transparent 70%);
  filter: blur(4px);
  pointer-events: none;
  z-index: 0;
}

.page-disclaimer .u-hero > * {
  position: relative;
  z-index: 1;
}

.page-disclaimer .u-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--haze-400);
}

.page-disclaimer .u-kicker::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--sig-400);
}

.page-disclaimer .u-title {
  margin: 0.28em 0 0.42em;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.5rem, 7.4vw, 5.4rem);
  line-height: 0.95;
  letter-spacing: 0.005em;
  color: var(--paper-100);
}

.page-disclaimer .u-title span {
  display: block;
}

.page-disclaimer .u-title .u-accent {
  color: var(--sig-400);
  margin-left: 0.06em;
}

.page-disclaimer .u-lead {
  max-width: 36em;
  margin: 0;
  font-size: clamp(0.96rem, 1.6vw, 1.06rem);
  line-height: 1.85;
  color: var(--haze-400);
}

.page-disclaimer .u-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: clamp(16px, 2.4vw, 24px);
}

/* ---------- 快速跳转刻度条 ---------- */
.page-disclaimer .u-jump {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-block: 6px clamp(16px, 2.6vw, 26px);
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-disclaimer .u-jump::-webkit-scrollbar {
  display: none;
}

.page-disclaimer .u-jump a {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: var(--ink-800);
  border: 1px solid var(--line-500);
  color: var(--paper-100);
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-disclaimer .u-jump a span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--sig-400);
}

.page-disclaimer .u-jump a:hover,
.page-disclaimer .u-jump a:focus-visible {
  border-color: var(--sig-400);
  color: var(--sig-400);
  background: var(--ink-700);
  outline: none;
}

/* ---------- 信息图 ---------- */
.page-disclaimer .u-figure {
  margin: 0 0 clamp(26px, 4.5vw, 46px);
}

.page-disclaimer .u-figure .media-frame {
  border: 1px solid var(--line-500);
}

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

.page-disclaimer .u-figure figcaption {
  margin-top: 10px;
  font-size: 0.78rem;
  line-height: 1.6;
  letter-spacing: 0.02em;
  color: var(--haze-400);
}

/* ---------- 条目区 ---------- */
.page-disclaimer .u-index .section-head {
  margin-bottom: clamp(16px, 2.6vw, 26px);
}

.page-disclaimer .u-flow {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2vw, 20px);
  align-items: start;
}

.page-disclaimer .u-item {
  position: relative;
  background: var(--ink-800);
  border-left: 3px solid var(--line-500);
  scroll-margin-top: calc(var(--header-h) + 16px);
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-disclaimer .u-item::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 6px;
  background-image: repeating-linear-gradient(90deg, var(--line-500) 0 1px, transparent 1px 11px);
  opacity: 0.75;
  pointer-events: none;
}

.page-disclaimer .u-item::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 34px;
  height: 34px;
  clip-path: polygon(100% 0, 0 0, 100% 100%);
  background: var(--ink-900);
  pointer-events: none;
}

.page-disclaimer .u-item[open] {
  background: var(--ink-700);
  border-left-color: var(--sig-400);
}

.page-disclaimer .u-item:hover {
  border-left-color: var(--sig-400);
}

.page-disclaimer .u-item summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 14px;
  align-items: start;
  padding: 18px 20px 16px;
  cursor: pointer;
  list-style: none;
}

.page-disclaimer .u-item summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer .u-item summary:focus-visible {
  outline: 2px solid var(--sig-400);
  outline-offset: -2px;
}

.page-disclaimer .u-num {
  padding-top: 2px;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  letter-spacing: 0.06em;
  color: var(--sig-400);
  font-variant-numeric: tabular-nums;
}

.page-disclaimer .u-item-main {
  display: block;
  min-width: 0;
}

.page-disclaimer .u-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-disclaimer .u-item-title {
  display: block;
  margin-top: 9px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.12rem, 2.4vw, 1.4rem);
  line-height: 1.18;
  color: var(--paper-100);
}

.page-disclaimer .u-item-hint {
  display: block;
  margin-top: 7px;
  font-size: 0.84rem;
  line-height: 1.6;
  color: var(--haze-400);
}

.page-disclaimer .u-caret {
  position: relative;
  width: 22px;
  height: 22px;
  margin-top: 4px;
  border: 1px solid var(--line-500);
  flex: none;
}

.page-disclaimer .u-caret::before,
.page-disclaimer .u-caret::after {
  content: "";
  position: absolute;
  left: 5px;
  right: 5px;
  top: 50%;
  height: 1px;
  background: var(--sig-400);
  transform: translateY(-50%);
}

.page-disclaimer .u-caret::after {
  transform: translateY(-50%) rotate(90deg);
  transition: opacity 0.18s var(--ease);
}

.page-disclaimer .u-item[open] .u-caret::after {
  opacity: 0;
}

.page-disclaimer .u-item-content {
  margin: 0 20px;
  padding: 14px 0 22px;
  border-top: 1px solid var(--line-500);
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--haze-400);
}

.page-disclaimer .u-item-content ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .u-item-content li {
  position: relative;
  padding-left: 16px;
}

.page-disclaimer .u-item-content li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  border: 1px solid var(--sig-700);
  transform: rotate(45deg);
}

.page-disclaimer .u-item-content strong {
  color: var(--paper-100);
  font-weight: 600;
}

.page-disclaimer .u-item-content p {
  margin: 12px 0 0;
}

.page-disclaimer .u-item-content a {
  color: var(--sig-400);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-disclaimer .u-item-content a:hover {
  color: var(--paper-100);
}

/* ---------- 收尾纸感块 ---------- */
.page-disclaimer .u-tail {
  position: relative;
  margin-top: clamp(30px, 5vw, 54px);
  padding: clamp(24px, 4vw, 38px) clamp(20px, 3vw, 34px);
  background: var(--cream-050);
  color: var(--ink-900);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-disclaimer .u-tail::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 8px;
  background-image: repeating-linear-gradient(90deg, var(--ink-900) 0 1px, transparent 1px 13px);
  opacity: 0.28;
}

.page-disclaimer .u-tail-title {
  margin: 6px 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.4rem, 3.4vw, 2.1rem);
  line-height: 1.1;
  letter-spacing: 0.005em;
  color: var(--ink-900);
}

.page-disclaimer .u-tail-text {
  max-width: 34em;
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.8;
  color: #2a3346;
}

.page-disclaimer .u-tail-text a {
  color: var(--ink-900);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--sig-700);
}

.page-disclaimer .u-tail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: clamp(16px, 2.6vw, 24px);
}

.page-disclaimer .u-tail .btn {
  text-decoration: none;
}

.page-disclaimer .u-tail .btn-ghost {
  border-color: var(--ink-900);
  color: var(--ink-900);
  background: transparent;
}

.page-disclaimer .u-tail .btn-ghost:hover,
.page-disclaimer .u-tail .btn-ghost:focus-visible {
  background: var(--ink-900);
  color: var(--cream-050);
  border-color: var(--ink-900);
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-disclaimer .u-jump {
    flex-wrap: wrap;
    overflow: visible;
  }

  .page-disclaimer .u-item-content {
    font-size: 0.93rem;
  }
}

@media (min-width: 860px) {
  .page-disclaimer .u-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-disclaimer .u-item summary {
    padding: 20px 24px 18px;
  }

  .page-disclaimer .u-item-content {
    margin: 0 24px;
    padding-bottom: 24px;
  }

  .page-disclaimer .u-tail-text {
    font-size: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .u-item,
  .page-disclaimer .u-jump a,
  .page-disclaimer .u-caret::after:not(:root) {
    transition: none;
  }
}
</main>