.page-disclaimer {
  --disc-paper-line: rgba(20, 26, 46, .14);
  --disc-ink-line: rgba(167, 176, 201, .22);
  --disc-cyan-soft: rgba(55, 230, 210, .16);
  --disc-red-soft: rgba(228, 72, 59, .07);
  display: block;
  background: var(--space);
  color: var(--paper);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-disclaimer .disc-hero {
  position: relative;
  padding-top: clamp(24px, 4.5vw, 52px);
  padding-bottom: 0;
  overflow: hidden;
  background:
    radial-gradient(120% 90% at 6% -12%, rgba(59, 42, 107, .95), transparent 62%),
    radial-gradient(85% 60% at 94% 4%, rgba(55, 230, 210, .10), transparent 58%),
    linear-gradient(180deg, var(--space) 0%, var(--ink) 100%);
  border-bottom: 1px solid var(--disc-ink-line);
}

.page-disclaimer .breadcrumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .08em;
  color: var(--dust);
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-disclaimer .breadcrumbs a {
  color: var(--dust);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

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

.page-disclaimer .breadcrumbs__sep {
  color: var(--volt);
}

.page-disclaimer .disc-kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-disclaimer .disc-kicker__mark {
  color: var(--amber);
  font-size: var(--fs-14);
}

.page-disclaimer .disc-h1 {
  margin: 0 0 clamp(16px, 2.4vw, 26px);
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.85rem, 5.4vw, 4rem);
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--paper);
  max-width: 18ch;
}

.page-disclaimer .disc-lede {
  margin: 0 0 clamp(24px, 3.4vw, 42px);
  max-width: 62ch;
  font-size: clamp(1rem, 1.3vw, 1.125rem);
  line-height: 1.78;
  color: rgba(243, 237, 226, .78);
}

.page-disclaimer .disc-hero__meta {
  display: flex;
  flex-wrap: wrap;
  margin: 0 0 clamp(28px, 4vw, 48px);
  border-top: 1px solid var(--disc-ink-line);
  border-bottom: 1px solid var(--disc-ink-line);
}

.page-disclaimer .disc-hero__meta > div {
  flex: 1 1 150px;
  padding: 16px 22px 16px 0;
  border-right: 1px solid var(--disc-ink-line);
}

.page-disclaimer .disc-hero__meta > div:last-child {
  border-right: 0;
}

.page-disclaimer .disc-hero__meta dt {
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .12em;
  color: var(--dust);
}

.page-disclaimer .disc-hero__meta dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-20);
  line-height: 1.2;
  color: var(--cyan);
}

.page-disclaimer .disc-banner {
  position: relative;
  margin: 0;
  border-top: 1px solid var(--disc-ink-line);
}

.page-disclaimer .disc-banner img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: clamp(140px, 22vw, 260px);
  object-fit: cover;
}

.page-disclaimer .disc-banner figcaption {
  position: absolute;
  left: var(--pad-x);
  bottom: 14px;
  padding: 5px 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .1em;
  color: var(--cyan);
  background: rgba(6, 8, 20, .76);
  border-left: 2px solid var(--amber);
}

/* ---------- 纸白画布 ---------- */
.page-disclaimer .disc-canvas {
  padding: clamp(34px, 5.5vw, 76px) 0 clamp(52px, 8vw, 112px);
  background-color: var(--paper);
  background-image: linear-gradient(90deg, rgba(20, 26, 46, .045) 1px, transparent 1px);
  background-size: 88px 100%;
  color: var(--paper-ink);
}

.page-disclaimer .disc-body {
  display: block;
}

/* ---------- 目录轨道 ---------- */
.page-disclaimer .disc-rail {
  margin-bottom: clamp(28px, 4vw, 40px);
}

.page-disclaimer .disc-rail__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .18em;
  color: rgba(20, 26, 46, .5);
}

.page-disclaimer .disc-rail__list {
  display: flex;
  gap: 8px;
  margin: 0 0 4px;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
}

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

.page-disclaimer .disc-rail__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 13px;
  font-size: var(--fs-14);
  white-space: nowrap;
  text-decoration: none;
  color: var(--paper-ink);
  background: rgba(255, 255, 255, .55);
  border: 1px solid var(--disc-paper-line);
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

.page-disclaimer .disc-rail__link:hover {
  color: var(--volt-ink);
  border-color: var(--volt);
}

.page-disclaimer .disc-rail__idx {
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  color: var(--amber);
}

.page-disclaimer .disc-ruler {
  display: none;
}

/* ---------- 文章区块 ---------- */
.page-disclaimer .disc-art {
  position: relative;
  scroll-margin-top: 110px;
}

.page-disclaimer .disc-art + .disc-art {
  margin-top: clamp(38px, 5.5vw, 70px);
  padding-top: clamp(30px, 4.5vw, 54px);
  border-top: 1px solid var(--disc-paper-line);
}

.page-disclaimer .disc-art + .disc-art::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 7px;
  background-image: repeating-linear-gradient(90deg, var(--disc-paper-line) 0 1px, transparent 1px 18px);
  -webkit-mask-image: linear-gradient(90deg, #000 0%, #000 42%, transparent 100%);
  mask-image: linear-gradient(90deg, #000 0%, #000 42%, transparent 100%);
}

.page-disclaimer .disc-art__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: clamp(14px, 2vw, 24px);
  row-gap: 6px;
  align-items: baseline;
  margin-bottom: clamp(18px, 2.6vw, 28px);
}

.page-disclaimer .disc-art__num {
  grid-column: 1;
  grid-row: 1 / span 2;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.55rem, 4vw, 2.35rem);
  line-height: .95;
  color: var(--amber);
}

.page-disclaimer .disc-art__title {
  grid-column: 2;
  grid-row: 1;
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.35rem, 3.2vw, 2.05rem);
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--paper-ink);
}

.page-disclaimer .disc-art__sub {
  grid-column: 2;
  grid-row: 2;
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .08em;
  color: rgba(20, 26, 46, .55);
}

.page-disclaimer .disc-art__body p {
  max-width: 68ch;
  margin: 0 0 18px;
  font-size: var(--fs-16);
  line-height: 1.78;
  color: var(--paper-ink);
}

.page-disclaimer .disc-art__body p:last-child {
  margin-bottom: 0;
}

.page-disclaimer .disc-art__body a {
  color: var(--volt-ink);
  text-decoration: none;
  border-bottom: 1px solid rgba(36, 64, 184, .35);
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

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

.page-disclaimer .disc-art__body p.disc-sub {
  margin: 26px 0 12px;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .16em;
  color: var(--volt-ink);
}

/* ---------- 引用格式样例 ---------- */
.page-disclaimer .disc-code {
  max-width: 68ch;
  margin: 0 0 24px;
  padding: 20px 22px;
  overflow-x: auto;
  background: var(--ink);
  border-left: 3px solid var(--cyan);
  font-family: var(--font-mono);
  font-size: clamp(.78rem, 1.6vw, .875rem);
  line-height: 1.95;
  -webkit-overflow-scrolling: touch;
}

.page-disclaimer .disc-code code {
  font-family: inherit;
  white-space: pre;
  color: rgba(243, 237, 226, .9);
}

.page-disclaimer .disc-code .k {
  color: var(--amber);
}

.page-disclaimer .disc-code .v {
  color: var(--cyan);
}

/* ---------- 列表 ---------- */
.page-disclaimer .disc-list {
  max-width: 68ch;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
}

.page-disclaimer .disc-list li {
  position: relative;
  padding: 12px 0 12px 26px;
  border-bottom: 1px solid var(--disc-paper-line);
  font-size: var(--fs-16);
  line-height: 1.72;
  color: var(--paper-ink);
}

.page-disclaimer .disc-list li:first-child {
  border-top: 1px solid var(--disc-paper-line);
}

.page-disclaimer .disc-list li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 1.45em;
  width: 10px;
  height: 2px;
  background: var(--cyan);
}

/* ---------- 提醒条 ---------- */
.page-disclaimer .disc-note {
  max-width: 68ch;
  margin: 0 0 22px;
  padding: 13px 18px;
  border-left: 3px solid var(--red);
  background: linear-gradient(90deg, var(--disc-red-soft), transparent 72%);
  font-size: var(--fs-14);
  line-height: 1.72;
  color: var(--paper-ink);
}

.page-disclaimer .disc-art__body p.disc-note {
  font-size: var(--fs-14);
  line-height: 1.72;
}

/* ---------- 双栏说明 ---------- */
.page-disclaimer .disc-split {
  display: grid;
  gap: 0;
  max-width: 68ch;
  margin: 0 0 22px;
  border: 1px solid var(--disc-paper-line);
  background: rgba(255, 255, 255, .45);
}

.page-disclaimer .disc-split__col {
  padding: 18px 20px;
}

.page-disclaimer .disc-split__col > p {
  max-width: none;
  margin: 0;
  font-size: var(--fs-14);
  line-height: 1.74;
  color: rgba(20, 26, 46, .86);
}

.page-disclaimer .disc-split__col > p.disc-sub {
  margin: 0 0 10px;
}

/* ---------- 折叠面板 ---------- */
.page-disclaimer .disc-fold {
  max-width: 68ch;
  border-top: 1px solid var(--disc-paper-line);
}

.page-disclaimer .disc-fold:last-of-type {
  border-bottom: 1px solid var(--disc-paper-line);
  margin-bottom: 22px;
}

.page-disclaimer .disc-fold > summary {
  position: relative;
  padding: 16px 34px 16px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-16);
  color: var(--paper-ink);
}

.page-disclaimer .disc-fold > summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer .disc-fold > summary::after {
  content: "";
  position: absolute;
  right: 8px;
  top: 50%;
  width: 9px;
  height: 9px;
  margin-top: -6px;
  border-right: 1px solid var(--volt-ink);
  border-bottom: 1px solid var(--volt-ink);
  transform: rotate(45deg);
  transition: transform .25s var(--ease), margin-top .25s var(--ease);
}

.page-disclaimer .disc-fold[open] > summary::after {
  margin-top: -2px;
  transform: rotate(-135deg);
}

.page-disclaimer .disc-fold__body {
  padding: 0 0 20px;
}

.page-disclaimer .disc-fold__body p {
  max-width: 66ch;
  margin: 0 0 12px;
  font-size: var(--fs-14);
  line-height: 1.78;
  color: rgba(20, 26, 46, .82);
}

.page-disclaimer .disc-fold__body p:last-child {
  margin-bottom: 0;
}

/* ---------- 处理步骤 ---------- */
.page-disclaimer .disc-steps {
  max-width: 68ch;
  margin: 0 0 24px;
  padding: 0;
  list-style: none;
}

.page-disclaimer .disc-steps li {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 14px 0;
  border-bottom: 1px solid var(--disc-paper-line);
  font-size: var(--fs-14);
  line-height: 1.72;
  color: rgba(20, 26, 46, .88);
}

.page-disclaimer .disc-steps li:first-child {
  border-top: 1px solid var(--disc-paper-line);
}

.page-disclaimer .disc-steps__idx {
  display: block;
  padding: 2px 0;
  text-align: center;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: .08em;
  color: var(--paper-ink);
  background: var(--disc-cyan-soft);
  border: 1px solid rgba(55, 230, 210, .55);
}

/* ---------- 行动区 ---------- */
.page-disclaimer .disc-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-disclaimer .disc-cta .btn--ghost {
  color: var(--paper-ink);
  border-color: rgba(20, 26, 46, .3);
}

.page-disclaimer .disc-cta .btn--ghost:hover {
  border-color: var(--volt-ink);
  color: var(--volt-ink);
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 700px) {
  .page-disclaimer .disc-split {
    grid-template-columns: 1fr 1fr;
  }

  .page-disclaimer .disc-split__col + .disc-split__col {
    border-left: 1px solid var(--disc-paper-line);
  }
}

@media (min-width: 960px) {
  .page-disclaimer .disc-body {
    display: grid;
    grid-template-columns: minmax(176px, 220px) minmax(0, 1fr);
    gap: clamp(34px, 5vw, 76px);
    align-items: start;
  }

  .page-disclaimer .disc-rail {
    position: sticky;
    top: 112px;
    margin-bottom: 0;
  }

  .page-disclaimer .disc-rail__list {
    flex-direction: column;
    gap: 0;
    padding-bottom: 0;
    overflow: visible;
    border-top: 1px solid var(--disc-paper-line);
  }

  .page-disclaimer .disc-rail__link {
    width: 100%;
    padding: 11px 0;
    background: transparent;
    border: 0;
    border-bottom: 1px solid var(--disc-paper-line);
  }

  .page-disclaimer .disc-ruler {
    display: block;
    height: 168px;
    margin-top: 22px;
    border-left: 1px solid var(--disc-paper-line);
    background-image: repeating-linear-gradient(to bottom, var(--disc-paper-line) 0 1px, transparent 1px 21px);
    background-size: 11px 100%;
    background-repeat: no-repeat;
  }

  .page-disclaimer .disc-art__body p,
  .page-disclaimer .disc-list,
  .page-disclaimer .disc-code,
  .page-disclaimer .disc-note,
  .page-disclaimer .disc-split,
  .page-disclaimer .disc-steps,
  .page-disclaimer .disc-fold {
    max-width: 62ch;
  }
}

@media (min-width: 1240px) {
  .page-disclaimer .disc-body {
    grid-template-columns: 220px minmax(0, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .disc-rail__link,
  .page-disclaimer .breadcrumbs a,
  .page-disclaimer .disc-art__body a,
  .page-disclaimer .disc-fold > summary::after {
    transition: none;
  }
}