.page-disclaimer {
  --disc-rail: 236px;
  --disc-gap: 56px;
  position: relative;
  padding: 26px 0 96px;
  color: var(--mist);
  background:
    radial-gradient(1100px 520px at 84% -12%, rgba(111, 233, 224, .1), transparent 62%),
    radial-gradient(760px 420px at 6% 12%, rgba(255, 210, 63, .06), transparent 60%),
    linear-gradient(180deg, rgba(10, 42, 67, .82), rgba(4, 18, 31, 0) 34%);
}

.page-disclaimer .disc-anchor {
  display: block;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.page-disclaimer .disc-wrap {
  width: min(100% - 32px, var(--wrap));
  margin-inline: auto;
}

/* ===== 面包屑 ===== */
.page-disclaimer .breadcrumbs {
  font-size: 13px;
  color: var(--tide);
  margin-bottom: 22px;
}

.page-disclaimer .breadcrumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-disclaimer .breadcrumbs li + li::before {
  content: "/";
  margin-right: 8px;
  color: rgba(122, 152, 168, .65);
}

.page-disclaimer .breadcrumbs a {
  color: var(--ice);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .16s ease;
}

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

.page-disclaimer .breadcrumbs [aria-current="page"] {
  color: var(--mist);
}

/* ===== 首屏 ===== */
.page-disclaimer .disc-intro {
  max-width: 48rem;
}

.page-disclaimer .disc-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 16px;
  padding: 5px 11px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--ice);
  background: rgba(16, 64, 94, .55);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
}

.page-disclaimer .disc-eyebrow .mono {
  color: var(--yellow);
}

.page-disclaimer h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 5.6vw, 50px);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-disclaimer .disc-intro .lead {
  margin: 0;
  max-width: 40em;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist);
}

/* ===== 首屏窄幅横图 ===== */
.page-disclaimer .disc-hero {
  position: relative;
  margin: 34px 0 52px;
  width: 100%;
  max-width: 880px;
  aspect-ratio: 12 / 5;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background:
    repeating-linear-gradient(90deg, rgba(111, 233, 224, .1) 0 1px, transparent 1px 42px),
    linear-gradient(160deg, var(--deep), var(--ink));
}

.page-disclaimer .disc-hero::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 96px;
  height: 10px;
  background: repeating-linear-gradient(90deg, var(--ice) 0 2px, transparent 2px 8px);
  pointer-events: none;
}

.page-disclaimer .disc-hero img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

.page-disclaimer .disc-hero .media-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 30px 18px 12px;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--mist);
  background: linear-gradient(180deg, rgba(4, 18, 31, 0), rgba(4, 18, 31, .88));
}

/* ===== 主栅格 ===== */
.page-disclaimer .disc-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
}

/* ===== 右侧刻度索引 ===== */
.page-disclaimer .disc-rail {
  display: none;
}

.page-disclaimer .disc-rail-title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--tide);
}

.page-disclaimer .disc-rail-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  border-top: 1px solid var(--line);
}

.page-disclaimer .disc-rail-list li {
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .disc-rail-list .toc-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px 9px 9px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--tide);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color .16s ease, border-color .16s ease, background .16s ease;
}

.page-disclaimer .disc-rail-list .toc-link:hover {
  color: var(--paper);
  background: rgba(111, 233, 224, .06);
}

.page-disclaimer .disc-rail-list .toc-link[aria-current="true"] {
  color: var(--paper);
  border-left-color: var(--orange);
  background: rgba(111, 233, 224, .08);
}

.page-disclaimer .disc-toc-num {
  flex: none;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--yellow);
}

.page-disclaimer .disc-rail-foot {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--tide);
}

.page-disclaimer .disc-rail-pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 0 rgba(255, 90, 31, .55);
  animation: disc-pulse 2.4s ease-in-out infinite;
}

@keyframes disc-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255, 90, 31, .5); }
  50% { box-shadow: 0 0 0 7px rgba(255, 90, 31, 0); }
}

/* ===== 章节 ===== */
.page-disclaimer .disc-sec {
  scroll-margin-top: calc(var(--frame-top) + 24px);
  padding: 0 0 38px;
  margin: 0 0 38px;
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .disc-sec:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: 0;
}

.page-disclaimer .disc-sec-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 16px;
}

.page-disclaimer .disc-sec-num {
  flex: none;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--yellow);
}

.page-disclaimer .disc-sec h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(20px, 2.5vw, 28px);
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-disclaimer .disc-sec p {
  max-width: 38em;
  margin: 0 0 14px;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist);
}

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

/* ===== 纸张提示块 ===== */
.page-disclaimer .note-block {
  position: relative;
  max-width: 40em;
  margin: 20px 0 0;
  padding: 15px 18px 15px 21px;
  background: var(--chart);
  color: var(--ink);
  border: 1px solid rgba(4, 18, 31, .2);
  border-radius: var(--radius);
  box-shadow: 7px 7px 0 rgba(4, 18, 31, .45);
}

.page-disclaimer .note-block::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--orange);
}

.page-disclaimer .note-tag {
  display: inline-block;
  margin-bottom: 8px;
  padding: 3px 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--paper);
  background: var(--mid);
  border-radius: 2px;
}

.page-disclaimer .note-block p {
  max-width: none;
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}

/* ===== 并排小卡 ===== */
.page-disclaimer .disc-pair {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  margin-bottom: 38px;
}

.page-disclaimer .disc-pair .disc-sec {
  margin: 0;
  padding: 20px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(16, 64, 94, .62), rgba(10, 42, 67, .3));
}

.page-disclaimer .disc-pair .disc-sec p {
  font-size: 15px;
  line-height: 1.78;
}

.page-disclaimer .disc-device-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-disclaimer .disc-device {
  position: relative;
  padding-left: 30px;
  margin-bottom: 12px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

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

.page-disclaimer .disc-device::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 6px;
  width: 13px;
  height: 13px;
  border: 2px solid var(--ice);
  border-radius: 3px;
  background: linear-gradient(135deg, rgba(255, 210, 63, .85) 0 45%, transparent 45%);
}

/* ===== 联系方式 ===== */
.page-disclaimer .disc-contact {
  margin-top: 20px;
  border-top: 1px solid var(--line);
}

.page-disclaimer .disc-contact-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  align-items: center;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .disc-contact-label {
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--tide);
}

.page-disclaimer .disc-contact-value {
  font-size: 15px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.page-disclaimer .disc-contact-value.mono {
  font-family: var(--font-mono);
  letter-spacing: .03em;
}

.page-disclaimer .copy-btn {
  justify-self: start;
  padding: 7px 14px;
  font-family: var(--font-body);
  font-size: 13px;
  color: var(--ice);
  background: rgba(111, 233, 224, .08);
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  cursor: pointer;
  transition: background .16s ease, color .16s ease, border-color .16s ease;
}

.page-disclaimer .copy-btn:hover {
  background: rgba(111, 233, 224, .18);
  color: var(--paper);
}

.page-disclaimer .copy-btn.is-copied {
  color: var(--ink);
  background: var(--yellow);
  border-color: var(--yellow);
}

/* ===== 更新记录 ===== */
.page-disclaimer .disc-log {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-disclaimer .disc-log-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 5px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .disc-log-id {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--yellow);
}

.page-disclaimer .disc-log-item p {
  margin: 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mist);
}

/* ===== 返回顶部 ===== */
.page-disclaimer .disc-to-top {
  position: fixed;
  right: 14px;
  bottom: 20px;
  z-index: 20;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 9px 8px;
  color: var(--ice);
  text-decoration: none;
  background: rgba(4, 18, 31, .86);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  transition: color .16s ease, border-color .16s ease;
}

.page-disclaimer .disc-to-top:hover {
  color: var(--paper);
  border-color: var(--yellow);
}

.page-disclaimer .disc-to-top .to-top-arrow {
  font-size: 14px;
  line-height: 1;
}

.page-disclaimer .disc-to-top-text {
  font-size: 10px;
  letter-spacing: .12em;
}

.page-disclaimer .disc-to-top .to-top-rule {
  display: block;
  width: 2px;
  height: 16px;
  background: linear-gradient(180deg, var(--orange), transparent);
}

/* ===== 响应式 ===== */
@media (min-width: 640px) {
  .page-disclaimer .disc-log-item {
    grid-template-columns: 108px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }

  .page-disclaimer .disc-contact-row {
    grid-template-columns: 120px minmax(0, 1fr) auto;
    gap: 14px;
  }

  .page-disclaimer .copy-btn {
    justify-self: end;
  }
}

@media (min-width: 720px) {
  .page-disclaimer .disc-pair {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }
}

@media (min-width: 1024px) {
  .page-disclaimer {
    padding-top: 34px;
  }

  .page-disclaimer .disc-layout {
    grid-template-columns: minmax(0, 1fr) var(--disc-rail);
    gap: var(--disc-gap);
  }

  .page-disclaimer .disc-rail {
    display: block;
    position: sticky;
    top: calc(var(--frame-top) + 22px);
    align-self: start;
  }

  .page-disclaimer .disc-hero {
    margin-bottom: 58px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .disc-rail-pulse {
    animation: none;
  }

  .page-disclaimer .disc-rail-list .toc-link,
  .page-disclaimer .copy-btn,
  .page-disclaimer .disc-to-top {
    transition: none;
  }
}
</main>