.page-disclaimer {
  --disc-node: 12px;
  --disc-content-w: 32rem;
  background: var(--ink-950);
  color: var(--paper-050);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-disclaimer .disc-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(24px, 4vw, 44px) clamp(40px, 6vw, 76px);
  border-bottom: var(--line);
  background: var(--ink-950);
}

.page-disclaimer .disc-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-disclaimer .disc-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: .5;
}

.page-disclaimer .disc-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(5, 15, 13, .45) 0%, rgba(5, 15, 13, .82) 52%, var(--ink-950) 100%),
    linear-gradient(90deg, rgba(5, 15, 13, .92) 0%, rgba(5, 15, 13, .35) 62%, rgba(5, 15, 13, .1) 100%);
}

.page-disclaimer .disc-hero__inner {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

.page-disclaimer .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 clamp(20px, 3vw, 34px);
  padding: 0;
  list-style: none;
  font-size: 13px;
  letter-spacing: .04em;
}

.page-disclaimer .breadcrumbs__item {
  color: var(--muted-400);
}

.page-disclaimer .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--line-700);
}

.page-disclaimer .breadcrumbs a {
  color: var(--muted-400);
  text-decoration: none;
}

.page-disclaimer .breadcrumbs a:hover {
  color: var(--cyan-300);
}

.page-disclaimer .breadcrumbs__item[aria-current="page"] {
  color: var(--cyan-500);
}

.page-disclaimer .disc-hero .eyebrow {
  margin: 0;
  color: var(--cyan-500);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .22em;
  text-transform: uppercase;
}

.page-disclaimer h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(36px, 6.4vw, 66px);
  line-height: 1.03;
  letter-spacing: -.01em;
  color: var(--paper-050);
}

.page-disclaimer .disc-hero .lede {
  margin: 18px 0 0;
  max-width: 62ch;
  font-size: clamp(15.5px, 1.5vw, 17.5px);
  line-height: 1.8;
  color: var(--muted-400);
}

.page-disclaimer .disc-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin-top: clamp(24px, 3vw, 36px);
  font-size: 12.5px;
  color: var(--cyan-300);
}

.page-disclaimer .disc-hero__meta .mono {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 12px;
  border: 1px solid var(--line-700);
  border-radius: 2px;
  background: rgba(18, 38, 31, .6);
  letter-spacing: .06em;
}

.page-disclaimer .disc-hero .ticks {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 14px;
  z-index: 2;
  opacity: .8;
}

/* ---------- 章节索引条 ---------- */
.page-disclaimer .disc-toc {
  background: var(--ink-900);
  border-bottom: var(--line);
}

.page-disclaimer .disc-toc__list {
  display: flex;
  gap: clamp(14px, 3vw, 34px);
  margin: 0;
  padding: 6px 0;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-disclaimer .disc-toc__list::-webkit-scrollbar {
  display: none;
}

.page-disclaimer .disc-toc__list li {
  flex: 0 0 auto;
}

.page-disclaimer .disc-toc__list a {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 44px;
  padding: 0 2px;
  font-size: 14px;
  color: var(--muted-400);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}

.page-disclaimer .disc-toc__list a:hover {
  color: var(--cyan-300);
  border-bottom-color: var(--cyan-500);
}

.page-disclaimer .disc-toc__list .mono {
  color: var(--cyan-500);
  font-size: 12px;
  letter-spacing: .1em;
}

/* ---------- 刻度主轴 ---------- */
.page-disclaimer .disc-flow {
  position: relative;
  padding-block: clamp(36px, 6vw, 84px);
}

.page-disclaimer .disc-spine {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 7px;
  width: 1px;
  background: linear-gradient(180deg,
      transparent 0%,
      var(--line-700) 5%,
      var(--line-700) 95%,
      transparent 100%);
}

.page-disclaimer .disc-chapter {
  position: relative;
  padding: 26px 0 26px 30px;
  scroll-margin-top: 90px;
}

.page-disclaimer .disc-chapter::before {
  content: "";
  position: absolute;
  top: 32px;
  left: 7px;
  width: var(--disc-node);
  height: var(--disc-node);
  margin-left: calc(var(--disc-node) / -2);
  border-radius: 50%;
  background: var(--ink-950);
  border: 2px solid var(--cyan-500);
  transition: background .2s var(--ease), box-shadow .2s var(--ease);
}

.page-disclaimer .disc-chapter:target::before {
  background: var(--cyan-500);
  box-shadow: 0 0 0 7px rgba(47, 230, 196, .16);
}

.page-disclaimer .disc-chapter__inner {
  width: 100%;
  max-width: var(--disc-content-w);
}

.page-disclaimer .disc-num {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0;
  font-size: 13px;
  letter-spacing: .2em;
  color: var(--cyan-500);
}

.page-disclaimer .disc-num::after {
  content: "";
  width: 46px;
  height: 1px;
  background: var(--line-700);
}

.page-disclaimer .disc-chapter h2 {
  margin: 12px 0 0;
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: clamp(21px, 3.4vw, 28px);
  line-height: 1.3;
  color: var(--paper-050);
}

.page-disclaimer .disc-chapter__intro {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted-400);
}

.page-disclaimer .disc-list {
  display: grid;
  gap: 13px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .disc-list li {
  position: relative;
  padding-left: 24px;
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--muted-400);
}

.page-disclaimer .disc-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: .78em;
  width: 11px;
  height: 1px;
  background: var(--cyan-500);
}

.page-disclaimer .disc-list strong {
  color: var(--paper-050);
  font-weight: 600;
}

.page-disclaimer .disc-list a,
.page-disclaimer .disc-outro a:not(.btn) {
  color: var(--cyan-500);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 230, 196, .35);
}

.page-disclaimer .disc-list a:hover {
  color: var(--cyan-300);
  border-bottom-color: var(--cyan-300);
}

/* ---------- 可以 / 不可以 对照 ---------- */
.page-disclaimer .disc-compare {
  display: grid;
  gap: 2px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
  border: var(--line);
  border-radius: 3px;
  overflow: hidden;
}

.page-disclaimer .disc-compare__row {
  display: grid;
  grid-template-columns: 74px 1fr;
  gap: 14px;
  align-items: start;
  padding: 13px 14px;
  background: var(--ink-900);
  font-size: 15px;
  line-height: 1.68;
  color: var(--muted-400);
}

.page-disclaimer .disc-compare__row--no {
  background: var(--ink-800);
}

.page-disclaimer .disc-compare__tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 24px;
  padding: 0 8px;
  border-radius: 2px;
  font-size: 11.5px;
  letter-spacing: .1em;
  white-space: nowrap;
}

.page-disclaimer .disc-compare__row--yes .disc-compare__tag {
  color: var(--cyan-300);
  border: 1px solid rgba(47, 230, 196, .4);
  background: rgba(47, 230, 196, .08);
}

.page-disclaimer .disc-compare__row--no .disc-compare__tag {
  color: var(--amber-400);
  border: 1px solid rgba(255, 162, 77, .42);
  background: rgba(255, 95, 46, .1);
}

/* ---------- 页尾反馈 ---------- */
.page-disclaimer .disc-outro {
  border-top: var(--line);
  background:
    linear-gradient(140deg, rgba(255, 95, 46, .09) 0%, rgba(10, 26, 22, 0) 46%),
    var(--ink-900);
}

.page-disclaimer .disc-outro__inner {
  display: grid;
  gap: 26px;
  padding-block: clamp(38px, 6vw, 72px);
}

.page-disclaimer .disc-outro__text h2 {
  margin: 12px 0 0;
  font-family: var(--font-editorial);
  font-weight: 600;
  font-size: clamp(22px, 3.6vw, 30px);
  line-height: 1.3;
  color: var(--paper-050);
}

.page-disclaimer .disc-outro__text p {
  margin: 14px 0 0;
  max-width: 56ch;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--muted-400);
}

.page-disclaimer .disc-outro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-disclaimer .disc-outro__actions .btn {
  min-height: 46px;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 900px) {
  .page-disclaimer .disc-spine {
    left: 50%;
    transform: translateX(-50%);
  }

  .page-disclaimer .disc-chapter {
    padding: clamp(30px, 4vw, 52px) 0;
  }

  .page-disclaimer .disc-chapter::before {
    top: clamp(42px, 5vw, 64px);
    left: 50%;
    margin-left: calc(var(--disc-node) / -2);
  }

  .page-disclaimer .disc-chapter--left .disc-chapter__inner {
    margin-right: auto;
  }

  .page-disclaimer .disc-chapter--right .disc-chapter__inner {
    margin-left: auto;
  }

  .page-disclaimer .disc-outro__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: 40px;
  }

  .page-disclaimer .disc-outro__actions {
    justify-content: flex-end;
    padding-bottom: 6px;
  }
}

@media (min-width: 1180px) {
  .page-disclaimer {
    --disc-content-w: 34rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .disc-toc__list a,
  .page-disclaimer .disc-chapter::before {
    transition: none;
  }
}