/* ===== 使用说明页 ===== */
.page-disclaimer {
  --dis-hair: rgba(154, 168, 181, 0.16);
  --dis-body: rgba(242, 245, 247, 0.8);
  --dis-dim: rgba(242, 245, 247, 0.64);
  padding-bottom: 4.5rem;
}

/* --- 面包屑 --- */
.page-disclaimer .breadcrumb {
  margin: 1.6rem 0 0;
}

.page-disclaimer .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--c-shale);
}

.page-disclaimer .breadcrumb li {
  display: inline-flex;
  align-items: center;
}

.page-disclaimer .breadcrumb li + li::before {
  content: "/";
  margin-right: 0.4rem;
  color: rgba(154, 168, 181, 0.45);
}

.page-disclaimer .breadcrumb a {
  color: var(--c-shale);
  text-decoration: none;
  border-bottom: 1px solid var(--dis-hair);
  transition: color 200ms ease-out, border-color 200ms ease-out;
}

.page-disclaimer .breadcrumb a:hover,
.page-disclaimer .breadcrumb a:focus-visible {
  color: var(--c-cyan);
  border-color: rgba(47, 224, 200, 0.5);
}

/* --- 页首 --- */
.page-disclaimer .dis-hero {
  padding: 1.6rem 0 0;
}

.page-disclaimer .dis-hero__grid {
  display: grid;
  gap: 1.6rem;
}

.page-disclaimer .mono-label {
  display: inline-block;
  margin: 0;
  color: var(--c-gold);
  letter-spacing: 0.16em;
}

.page-disclaimer .dis-hero__title {
  margin: 0.7rem 0 0;
  font-size: clamp(29px, 7vw, 52px);
  line-height: 1.12;
  font-weight: 800;
  letter-spacing: -0.022em;
  color: var(--c-paper);
  max-width: 16ch;
}

.page-disclaimer .dis-hero__lede {
  margin: 1.05rem 0 0;
  max-width: 48ch;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--dis-body);
}

.page-disclaimer .dis-hero__media {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--c-ink);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.page-disclaimer .dis-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  opacity: 0.92;
}

/* 刻度线 */
.page-disclaimer .dis-rule {
  height: 18px;
  margin-top: 2rem;
  border-top: 1px solid var(--line);
  background-image:
    repeating-linear-gradient(to right, rgba(154, 168, 181, 0.36) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(to right, rgba(154, 168, 181, 0.16) 0 1px, transparent 1px 24px);
  background-size: 100% 18px, 100% 9px;
  background-repeat: no-repeat;
}

/* --- 主体布局 --- */
.page-disclaimer .dis-body {
  padding-top: 2.2rem;
}

.page-disclaimer .dis-layout {
  display: grid;
  gap: 1.8rem;
}

/* --- 条款索引 --- */
.page-disclaimer .dis-nav {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(18, 40, 61, 0.45);
  padding: 1.1rem 1.05rem 1.15rem;
}

.page-disclaimer .dis-nav__title {
  margin: 0 0 0.7rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--c-shale);
}

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

.page-disclaimer .dis-nav__item a {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.5rem 0.1rem;
  border-bottom: 1px solid var(--dis-hair);
  color: var(--dis-dim);
  text-decoration: none;
  font-size: 15px;
  line-height: 1.5;
  transition: color 200ms ease-out, padding-left 220ms ease-out;
}

.page-disclaimer .dis-nav__item:last-child a {
  border-bottom: 0;
}

.page-disclaimer .dis-nav__item a:hover,
.page-disclaimer .dis-nav__item a:focus-visible {
  color: var(--c-cyan);
  padding-left: 0.35rem;
}

.page-disclaimer .dis-nav__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--c-cyan);
  opacity: 0.78;
}

.page-disclaimer .dis-nav__note {
  margin: 0.9rem 0 0;
  padding-top: 0.85rem;
  border-top: 1px dashed var(--dis-hair);
  font-size: 13px;
  line-height: 1.85;
  color: var(--dis-dim);
}

.page-disclaimer .dis-nav__note a {
  color: var(--c-gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(232, 180, 90, 0.35);
  transition: color 200ms ease-out, border-color 200ms ease-out;
}

.page-disclaimer .dis-nav__note a:hover,
.page-disclaimer .dis-nav__note a:focus-visible {
  color: var(--c-cyan);
  border-color: rgba(47, 224, 200, 0.5);
}

/* --- 条款卡片 --- */
.page-disclaimer .dis-list {
  display: grid;
  gap: 1.5rem;
}

.page-disclaimer .dis-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(18, 40, 61, 0.74), rgba(11, 27, 43, 0.5));
  box-shadow: var(--shadow-soft);
  padding: 1.35rem 1.15rem 1.45rem;
  transition: border-color 240ms ease-out;
}

.page-disclaimer .dis-card:hover,
.page-disclaimer .dis-card:focus-within {
  border-color: rgba(47, 224, 200, 0.45);
}

.page-disclaimer .dis-card__num {
  display: inline-block;
  margin-bottom: 0.85rem;
  padding: 0.2rem 0.5rem;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  color: var(--c-cyan);
  border: 1px solid rgba(47, 224, 200, 0.3);
  border-radius: var(--radius);
  background: rgba(47, 224, 200, 0.06);
}

.page-disclaimer .dis-card__title {
  margin: 0;
  font-size: 19px;
  line-height: 1.4;
  font-weight: 700;
  letter-spacing: -0.012em;
  color: var(--c-paper);
}

.page-disclaimer .dis-card__text {
  margin: 0.7rem 0 0;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--dis-body);
}

.page-disclaimer .dis-card__text b {
  color: var(--c-cyan);
  font-weight: 600;
}

/* 短横线引导列表 */
.page-disclaimer .dis-points {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.55rem;
}

.page-disclaimer .dis-points li {
  position: relative;
  padding-left: 1.15rem;
  font-size: 15px;
  line-height: 1.9;
  color: var(--dis-dim);
}

.page-disclaimer .dis-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.92em;
  width: 0.6rem;
  height: 1px;
  background: var(--c-cyan);
  opacity: 0.7;
}

.page-disclaimer .dis-points a {
  color: var(--c-gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(232, 180, 90, 0.35);
  transition: color 200ms ease-out, border-color 200ms ease-out;
}

.page-disclaimer .dis-points a:hover,
.page-disclaimer .dis-points a:focus-visible {
  color: var(--c-cyan);
  border-color: rgba(47, 224, 200, 0.5);
}

/* 版本时效标签 */
.page-disclaimer .dis-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 1.05rem;
}

.page-disclaimer .dis-tag {
  display: inline-block;
  padding: 0.26rem 0.58rem;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: help;
  transition: transform 220ms ease-out;
}

.page-disclaimer .dis-tag:hover {
  transform: translateY(-1px);
}

.page-disclaimer .dis-tag--now {
  color: var(--c-green);
  background: rgba(25, 198, 160, 0.14);
  border-color: rgba(25, 198, 160, 0.45);
}

.page-disclaimer .dis-tag--archive {
  color: var(--c-old-tag);
  background: rgba(108, 126, 146, 0.16);
  border-color: rgba(108, 126, 146, 0.4);
}

.page-disclaimer .dis-tag--check {
  color: var(--c-gold);
  background: rgba(232, 180, 90, 0.13);
  border-color: rgba(232, 180, 90, 0.4);
}

/* 展开细则 */
.page-disclaimer .dis-more {
  margin-top: 1.1rem;
  padding-top: 0.85rem;
  border-top: 1px dashed rgba(154, 168, 181, 0.22);
}

.page-disclaimer .dis-more > summary {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--c-gold);
  transition: color 200ms ease-out;
}

.page-disclaimer .dis-more > summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer .dis-more > summary::after {
  content: "›";
  display: inline-block;
  font-size: 16px;
  line-height: 1;
  transition: transform 260ms ease-out;
}

.page-disclaimer .dis-more[open] > summary::after {
  transform: rotate(90deg);
}

.page-disclaimer .dis-more > summary:hover,
.page-disclaimer .dis-more > summary:focus-visible {
  color: var(--c-cyan);
}

.page-disclaimer .dis-more p {
  margin: 0.75rem 0 0;
  font-size: 14.5px;
  line-height: 1.95;
  color: var(--c-shale);
}

.page-disclaimer .dis-more a {
  color: var(--c-gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(232, 180, 90, 0.35);
}

.page-disclaimer .dis-more a:hover,
.page-disclaimer .dis-more a:focus-visible {
  color: var(--c-cyan);
}

/* --- 平板与桌面 --- */
@media (min-width: 760px) {
  .page-disclaimer .dis-list {
    gap: 1.9rem;
  }

  .page-disclaimer .dis-card {
    display: grid;
    grid-template-columns: 84px minmax(0, 1fr);
    column-gap: 1.5rem;
    padding: 1.85rem 1.95rem 1.95rem;
  }

  .page-disclaimer .dis-card__num {
    grid-column: 1;
    grid-row: 1;
    justify-self: start;
    margin-top: 0.3rem;
    margin-bottom: 0;
  }

  .page-disclaimer .dis-card__body {
    grid-column: 2;
    grid-row: 1;
    min-width: 0;
  }

  .page-disclaimer .dis-card__title {
    font-size: 22px;
  }

  .page-disclaimer .dis-card__text {
    font-size: 16px;
  }
}

@media (min-width: 960px) {
  .page-disclaimer .dis-hero {
    padding-top: 2.4rem;
  }

  .page-disclaimer .dis-hero__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    column-gap: 3rem;
    align-items: center;
    gap: 3rem;
  }

  .page-disclaimer .dis-hero__lede {
    font-size: 17px;
  }
}

@media (min-width: 1000px) {
  .page-disclaimer .dis-body {
    padding-top: 3rem;
  }

  .page-disclaimer .dis-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    column-gap: 3.4rem;
    align-items: start;
  }

  .page-disclaimer .dis-nav {
    position: sticky;
    top: 92px;
  }

  .page-disclaimer .dis-list {
    gap: 2.1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .dis-card,
  .page-disclaimer .dis-tag,
  .page-disclaimer .dis-nav__item a,
  .page-disclaimer .dis-more > summary::after {
    transition: none;
  }
}