.page-disclaimer {
  --ud-gap: clamp(20px, 3vw, 38px);
  --ud-line: rgba(30, 58, 86, 0.62);
  --ud-paper-line: rgba(16, 16, 14, 0.18);
  position: relative;
  padding-bottom: clamp(46px, 7vw, 104px);
  color: var(--mist);
}

.page-disclaimer,
.page-disclaimer *,
.page-disclaimer *::before,
.page-disclaimer *::after {
  box-sizing: border-box;
}

.page-disclaimer .ud-col,
.page-disclaimer .ud-block,
.page-disclaimer .ud-hero,
.page-disclaimer .ud-hero__text,
.page-disclaimer .ud-hero__figure,
.page-disclaimer .ud-axis {
  min-width: 0;
}

/* ---------- 面包屑 ---------- */
.page-disclaimer .fh-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: clamp(16px, 2.6vw, 28px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--fog);
}

.page-disclaimer .fh-breadcrumb a {
  color: var(--fog);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--fh-ease), border-color 0.18s var(--fh-ease);
}

.page-disclaimer .fh-breadcrumb a:hover,
.page-disclaimer .fh-breadcrumb a:focus-visible {
  color: var(--cyan-pulse);
  border-bottom-color: var(--cyan-pulse);
}

.page-disclaimer .fh-breadcrumb__sep {
  color: var(--ink-500);
}

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

/* ---------- 首屏 ---------- */
.ud-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 48px);
  align-items: end;
  padding: clamp(26px, 4.4vw, 52px) 0 clamp(34px, 5vw, 64px);
  margin-top: clamp(14px, 2vw, 24px);
  border-bottom: 1px solid var(--ud-line);
}

.ud-hero__title {
  margin: 14px 0 0;
  font-size: clamp(32px, 5.4vw, 66px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  color: var(--mist);
  max-width: 20ch;
}

.ud-hero__lede {
  margin: 20px 0 0;
  max-width: 46ch;
  color: var(--fog);
}

.ud-hero__chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.ud-hero__figure {
  margin: 0;
  border: 1px solid var(--ink-500);
  background: var(--ink-700);
  position: relative;
}

.ud-hero__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(112deg, rgba(53, 229, 210, 0.1) 0%, rgba(53, 229, 210, 0) 46%);
}

.page-disclaimer .fh-figure__media {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.page-disclaimer .fh-figure__cap {
  display: block;
  padding: 10px 12px;
  border-top: 1px solid var(--ink-500);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--fog);
  background: var(--ink-700);
}

/* ---------- 两栏错位 ---------- */
.ud-cols {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ud-gap);
  margin-top: clamp(32px, 5vw, 62px);
}

.ud-block {
  position: relative;
  padding: clamp(20px, 3vw, 32px);
  margin-bottom: var(--ud-gap);
  border: 1px solid var(--ud-line);
  background:
    linear-gradient(180deg, rgba(18, 38, 58, 0.9) 0%, rgba(10, 22, 34, 0.68) 100%);
}

.ud-block:last-child {
  margin-bottom: 0;
}

.ud-block::before {
  content: "";
  position: absolute;
  top: -1px;
  left: clamp(20px, 3vw, 32px);
  width: 44px;
  height: 2px;
  background: var(--cyan-pulse);
}

.ud-block--paper {
  background: var(--paper);
  border-color: rgba(217, 69, 43, 0.42);
  color: var(--ink-black);
}

.ud-block--paper::before {
  background: var(--orange-signal);
}

.ud-block__title {
  margin: 12px 0 0;
  font-size: clamp(22px, 2.6vw, 32px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  color: var(--mist);
}

.ud-block--paper .ud-block__title {
  color: var(--ink-black);
}

.ud-block--paper .fh-kicker {
  color: var(--ember);
}

.ud-block--paper .fh-kicker::before {
  background: var(--ember);
}

.ud-p {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--fog);
}

.ud-block--paper .ud-p {
  color: #2C2A26;
}

.ud-p--tail {
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1px dashed var(--ud-line);
  font-size: 13.5px;
}

.ud-block--paper .ud-p--tail {
  border-top-color: var(--ud-paper-line);
}

.page-disclaimer a {
  color: var(--cyan-pulse);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 229, 210, 0.35);
  transition: color 0.18s var(--fh-ease), border-color 0.18s var(--fh-ease);
}

.page-disclaimer a:hover,
.page-disclaimer a:focus-visible {
  color: var(--orange-signal);
  border-bottom-color: var(--orange-signal);
}

.page-disclaimer .ud-block--paper a {
  color: var(--ember);
  border-bottom-color: rgba(217, 69, 43, 0.42);
}

.page-disclaimer .ud-block--paper a:hover,
.page-disclaimer .ud-block--paper a:focus-visible {
  color: var(--orange-signal);
  border-bottom-color: var(--orange-signal);
}

/* ---------- 术语定义列表 ---------- */
.ud-terms {
  margin: 22px 0 0;
  padding: 0;
}

.ud-term {
  position: relative;
  padding: 14px 0 14px 14px;
  border-top: 1px solid var(--ud-line);
  transition: background 0.2s var(--fh-ease);
}

.ud-term::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: var(--cyan-pulse);
  transform: scaleY(0);
  transform-origin: top center;
  transition: transform 0.22s var(--fh-ease);
}

.ud-term:hover,
.ud-term:focus-within {
  background: rgba(53, 229, 210, 0.07);
}

.ud-term:hover::before,
.ud-term:focus-within::before {
  transform: scaleY(1);
}

.ud-term__name {
  font-family: var(--font-mono);
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--cyan-pulse);
}

.ud-term__desc {
  margin: 6px 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--fog);
}

/* ---------- 版本折叠条 ---------- */
.ud-vers {
  margin: 22px 0 0;
  border-bottom: 1px solid var(--ud-line);
}

.ud-ver {
  border-top: 1px solid var(--ud-line);
}

.ud-ver__sum {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 13px 2px;
  cursor: pointer;
  list-style: none;
  transition: color 0.18s var(--fh-ease);
}

.ud-ver__sum::-webkit-details-marker {
  display: none;
}

.ud-ver__sum:hover,
.ud-ver__sum:focus-visible {
  color: var(--cyan-pulse);
}

.ud-ver[open] .ud-ver__sum {
  color: var(--mist);
}

.ud-ver__num {
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--orange-signal);
  min-width: 6.6em;
}

.ud-ver__label {
  font-size: 14.5px;
  color: inherit;
}

.ud-ver__chev {
  position: relative;
  margin-left: auto;
  width: 13px;
  height: 13px;
  flex: 0 0 13px;
}

.ud-ver__chev::before,
.ud-ver__chev::after {
  content: "";
  position: absolute;
  background: var(--orange-signal);
}

.ud-ver__chev::before {
  left: 0;
  right: 0;
  top: 5.5px;
  height: 2px;
}

.ud-ver__chev::after {
  top: 0;
  bottom: 0;
  left: 5.5px;
  width: 2px;
  transition: transform 0.22s var(--fh-ease);
}

.ud-ver[open] .ud-ver__chev::after {
  transform: scaleY(0);
}

.ud-ver__body {
  padding: 2px 2px 18px;
  border-left: 2px solid rgba(53, 229, 210, 0.28);
  padding-left: 14px;
  margin-left: 1px;
}

.ud-ver__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--fog);
}

/* ---------- 纸色区块里的列表 ---------- */
.ud-list {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.ud-list li {
  position: relative;
  padding: 12px 0 12px 18px;
  border-top: 1px solid var(--ud-paper-line);
  font-size: 14.5px;
  line-height: 1.74;
  color: #2C2A26;
}

.ud-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  width: 7px;
  height: 7px;
  background: var(--meadow);
}

.ud-list b {
  color: var(--ink-black);
}

/* ---------- 三步自查 ---------- */
.ud-steps {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.ud-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  padding: 14px 0;
  border-top: 1px solid var(--ud-paper-line);
}

.ud-step__no {
  font-size: 20px;
  line-height: 1;
  font-weight: 700;
  color: var(--ember);
  padding-top: 2px;
}

.ud-step b {
  display: block;
  font-size: 15px;
  color: var(--ink-black);
}

.ud-step p {
  margin: 5px 0 0;
  font-size: 14.5px;
  line-height: 1.74;
  color: #2C2A26;
}

/* ---------- 页尾刻度轴 ---------- */
.ud-axis {
  margin-top: clamp(40px, 6vw, 78px);
  padding-top: clamp(22px, 3vw, 34px);
  border-top: 1px solid var(--ud-line);
}

.ud-axis__title {
  margin: 0 0 26px;
  font-size: clamp(20px, 2.3vw, 27px);
  letter-spacing: -0.012em;
  color: var(--mist);
}

.ud-axis__list {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ud-axis__list::before {
  content: "";
  position: absolute;
  top: 4px;
  bottom: 4px;
  left: 4px;
  width: 1px;
  background: var(--ink-500);
}

.ud-axis__item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  padding-left: 26px;
}

.ud-axis__dot {
  position: absolute;
  left: 0;
  top: 6px;
  width: 9px;
  height: 9px;
  background: var(--orange-signal);
}

.ud-axis__dot--live {
  background: var(--cyan-pulse);
  box-shadow: 0 0 0 0 rgba(53, 229, 210, 0.55);
  animation: ud-pulse 3.2s ease-in-out infinite;
}

@keyframes ud-pulse {
  0%, 100% {
    box-shadow: 0 0 0 0 rgba(53, 229, 210, 0.5);
  }
  50% {
    box-shadow: 0 0 0 7px rgba(53, 229, 210, 0);
  }
}

.ud-axis__num {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--mist);
}

.ud-axis__text {
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--fog);
}

/* ---------- 响应式 ---------- */
@media (min-width: 760px) {
  .ud-hero {
    grid-template-columns: 7fr 5fr;
  }

  .ud-hero__figure {
    transform: translateY(clamp(10px, 2vw, 26px));
  }

  .ud-axis__list {
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
  }

  .ud-axis__list::before {
    top: 4px;
    bottom: auto;
    left: 4px;
    right: 4px;
    width: auto;
    height: 1px;
  }

  .ud-axis__item {
    padding-left: 0;
    padding-top: 26px;
  }

  .ud-axis__dot {
    left: 0;
    top: 0;
  }
}

@media (min-width: 960px) {
  .ud-cols {
    grid-template-columns: 7fr 5fr;
    align-items: start;
  }

  .ud-col--right {
    padding-top: clamp(38px, 6vw, 82px);
  }

  .ud-col--left .ud-block:last-child {
    margin-bottom: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .ud-axis__dot--live {
    animation: none;
  }

  .ud-term::before,
  .ud-term,
  .ud-ver__chev::after,
  .page-disclaimer a {
    transition: none;
  }

  .ud-hero__figure {
    transform: none;
  }
}