.page-disclaimer {
  --pg-line: rgba(16, 70, 92, 0.22);
  --pg-soft: rgba(244, 247, 248, 0.82);
  background: var(--frost);
  color: var(--graphite);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-disclaimer .pg-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(22px, 4vw, 40px) 0 clamp(40px, 7vw, 84px);
  background: var(--frost);
  border-bottom: 1px solid var(--mist);
}

.page-disclaimer .pg-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(40%, 460px);
  background: linear-gradient(155deg, var(--line-cyan) 0%, var(--brand) 52%, var(--ink) 100%);
  clip-path: polygon(24% 0, 100% 0, 100% 100%, 0 100%);
  opacity: 0.94;
  pointer-events: none;
}

.page-disclaimer .pg-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 6px;
}

.page-disclaimer .pg-hero .crumb {
  margin-bottom: 10px;
}

.page-disclaimer .pg-hero h1 {
  margin: 6px 0 16px;
  max-width: 20ch;
}

.page-disclaimer .pg-hero__lede {
  max-width: 56ch;
}

@media (max-width: 760px) {
  .page-disclaimer .pg-hero::before {
    width: 100%;
    height: 6px;
    top: auto;
    clip-path: none;
    opacity: 1;
  }
}

/* ---------- 时间线 ---------- */
.page-disclaimer .pg-clock__head {
  margin-bottom: clamp(24px, 4vw, 36px);
}

.page-disclaimer .timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
  counter-reset: none;
}

.page-disclaimer .timeline__item {
  position: relative;
  padding: 24px 22px 24px 26px;
  background: #ffffff;
  border: 1px solid var(--mist);
  border-radius: var(--radius);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease);
}

.page-disclaimer .timeline__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--line-cyan);
  border-radius: var(--radius) 0 0 var(--radius);
}

.page-disclaimer .timeline__item:nth-child(2)::before {
  background: var(--lake);
}

.page-disclaimer .timeline__item:nth-child(3)::before {
  background: var(--gold);
}

.page-disclaimer .timeline__item:hover {
  transform: translateY(-4px);
  border-color: var(--line-cyan);
}

.page-disclaimer .timeline__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(2rem, 6vw, 2.9rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--brand);
  font-variant-numeric: tabular-nums;
}

.page-disclaimer .timeline__num span {
  margin-left: 6px;
  font-size: 0.36em;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--line-cyan);
  text-transform: uppercase;
}

.page-disclaimer .timeline__title {
  margin: 12px 0 8px;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink);
}

.page-disclaimer .timeline__text {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.8;
  color: rgba(26, 34, 40, 0.78);
}

.page-disclaimer .pg-clock__figure {
  margin: clamp(32px, 5vw, 56px) 0 0;
  border: 1px solid var(--mist);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--mist);
}

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

@media (min-width: 860px) {
  .page-disclaimer .timeline {
    grid-template-columns: repeat(3, 1fr);
    gap: 0;
    border: 1px solid var(--mist);
    border-radius: var(--radius);
    overflow: hidden;
  }

  .page-disclaimer .timeline__item {
    border: 0;
    border-radius: 0;
    border-right: 1px solid var(--mist);
  }

  .page-disclaimer .timeline__item:last-child {
    border-right: 0;
  }

  .page-disclaimer .timeline__item:hover {
    transform: none;
    background: #fbfdfd;
  }
}

/* ---------- 设备对比 ---------- */
.page-disclaimer .device {
  display: grid;
  gap: 16px;
  margin-top: clamp(28px, 4vw, 44px);
}

.page-disclaimer .device__side {
  padding: clamp(24px, 4vw, 40px);
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
}

.page-disclaimer .device__side--mobile {
  background: linear-gradient(152deg, var(--brand) 0%, var(--ink) 100%);
  color: var(--frost);
  --side-line: rgba(255, 255, 255, 0.24);
  --side-mark: var(--gold);
}

.page-disclaimer .device__side--desktop {
  background: var(--mist);
  color: var(--graphite);
  --side-line: var(--pg-line);
  --side-mark: var(--line-cyan);
}

.page-disclaimer .device__side .h-m {
  margin: 18px 0 10px;
  color: inherit;
}

.page-disclaimer .device__intro {
  margin: 0;
  font-size: 0.95rem;
  line-height: 1.8;
  color: inherit;
  opacity: 0.85;
}

.page-disclaimer .device__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-disclaimer .device__list li {
  position: relative;
  padding-left: 18px;
  font-size: 0.93rem;
  line-height: 1.75;
  color: inherit;
}

.page-disclaimer .device__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 7px;
  height: 7px;
  background: var(--side-mark);
  border-radius: 1px;
  transform: rotate(45deg);
}

.page-disclaimer .device__more {
  margin-top: 22px;
  padding-top: 14px;
  border-top: 1px solid var(--side-line);
}

.page-disclaimer .device__more summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  color: inherit;
  opacity: 0.88;
}

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

.page-disclaimer .device__more summary::after {
  content: "＋";
  font-size: 1rem;
  line-height: 1;
  color: var(--side-mark);
}

.page-disclaimer .device__more[open] summary::after {
  content: "－";
}

.page-disclaimer .device__more .device__list {
  margin-top: 14px;
}

.page-disclaimer .device__foot {
  margin: clamp(22px, 3vw, 30px) 0 0;
  font-size: 0.93rem;
  line-height: 1.8;
  color: rgba(26, 34, 40, 0.78);
}

.page-disclaimer .device__foot a,
.page-disclaimer .fix-list__body a,
.page-disclaimer .help-contact a {
  color: var(--brand);
  text-decoration: none;
  border-bottom: 1px solid var(--line-cyan);
}

.page-disclaimer .device__foot a:hover,
.page-disclaimer .fix-list__body a:hover,
.page-disclaimer .help-contact a:hover {
  color: var(--line-cyan);
}

@media (min-width: 880px) {
  .page-disclaimer .device {
    grid-template-columns: 1fr 1fr;
    gap: 0;
  }

  .page-disclaimer .device__side {
    border-radius: 0;
  }

  .page-disclaimer .device__side--mobile {
    border-radius: var(--radius) 0 0 var(--radius);
  }

  .page-disclaimer .device__side--desktop {
    border-radius: 0 var(--radius) var(--radius) 0;
  }
}

/* ---------- 引用规范 ---------- */
.page-disclaimer .pg-cite {
  background: linear-gradient(180deg, transparent 0%, rgba(220, 230, 233, 0.42) 100%);
}

.page-disclaimer .rail__text {
  margin: 14px 0 0;
  max-width: 34ch;
  font-size: 0.95rem;
  line-height: 1.85;
  color: rgba(26, 34, 40, 0.75);
}

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

.page-disclaimer .cite-list__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--mist);
}

.page-disclaimer .cite-list__item:first-child {
  padding-top: 0;
}

.page-disclaimer .cite-list__no {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--line-cyan);
  padding-top: 0.4em;
  font-variant-numeric: tabular-nums;
}

.page-disclaimer .cite-list__title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
}

.page-disclaimer .cite-list__item p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.8;
  color: rgba(26, 34, 40, 0.78);
}

/* ---------- 异常处理 ---------- */
.page-disclaimer .fix-list {
  list-style: none;
  margin: clamp(24px, 4vw, 36px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--mist);
  border: 1px solid var(--mist);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-disclaimer .fix-list__item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(14px, 3vw, 28px);
  padding: clamp(20px, 3.5vw, 32px);
  background: #ffffff;
}

.page-disclaimer .fix-list__no {
  font-family: var(--font-mono);
  font-size: clamp(1.2rem, 3vw, 1.7rem);
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-disclaimer .fix-list__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--ink);
}

.page-disclaimer .fix-list__body p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.8;
  color: rgba(26, 34, 40, 0.78);
}

/* ---------- 版本 ---------- */
.page-disclaimer .pg-version {
  background: var(--ink);
  color: var(--frost);
}

.page-disclaimer .pg-version__inner {
  display: grid;
  gap: 20px;
}

.page-disclaimer .pg-version__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(3.4rem, 12vw, 6.5rem);
  font-weight: 700;
  line-height: 0.86;
  letter-spacing: -0.05em;
  color: var(--gold);
}

.page-disclaimer .pg-version__body .eyebrow {
  color: var(--lake);
}

.page-disclaimer .pg-version__body .h-m {
  margin: 10px 0 12px;
  color: var(--frost);
}

.page-disclaimer .pg-version__body p:last-child {
  margin: 0;
  max-width: 62ch;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--pg-soft);
}

@media (min-width: 760px) {
  .page-disclaimer .pg-version__inner {
    grid-template-columns: auto 1fr;
    align-items: center;
    gap: clamp(28px, 6vw, 72px);
  }
}

/* ---------- 帮助入口 ---------- */
.page-disclaimer .help-grid {
  margin-top: clamp(22px, 3vw, 30px);
}

.page-disclaimer .help-card {
  display: grid;
  gap: 8px;
  padding: clamp(22px, 3.5vw, 32px);
  background: #ffffff;
  border: 1px solid var(--mist);
  border-radius: var(--radius);
  text-decoration: none;
  color: inherit;
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-disclaimer .help-card:hover,
.page-disclaimer .help-card:focus-visible {
  border-color: var(--line-cyan);
  transform: translateY(-3px);
}

.page-disclaimer .help-card__kicker {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--line-cyan);
}

.page-disclaimer .help-card__title {
  font-family: var(--font-display);
  font-size: 1.06rem;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.5;
}

.page-disclaimer .help-card__text {
  font-size: 0.92rem;
  line-height: 1.75;
  color: rgba(26, 34, 40, 0.74);
}

.page-disclaimer .help-card__go {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  color: var(--brand);
}

.page-disclaimer .help-contact {
  margin: 18px 0 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: rgba(26, 34, 40, 0.74);
}

@media (max-width: 640px) {
  .page-disclaimer .help-grid {
    grid-template-columns: 1fr;
  }

  .page-disclaimer .cite-list__item,
  .page-disclaimer .fix-list__item {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .page-disclaimer .cite-list__no,
  .page-disclaimer .fix-list__no {
    padding-top: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .timeline__item,
  .page-disclaimer .help-card {
    transition-duration: 0.12s;
  }

  .page-disclaimer .timeline__item:hover,
  .page-disclaimer .help-card:hover {
    transform: none;
  }
}