/* ===== 使用须知 / page-disclaimer ===== */

.page-disclaimer {
  --dc-line: rgba(201, 216, 228, 0.2);
  --dc-line-soft: rgba(201, 216, 228, 0.1);
  --dc-ink-soft: rgba(237, 243, 248, 0.82);
  color: var(--oy-ink);
}

/* ---------- 面包屑 ---------- */
.page-disclaimer .oy-crumbs {
  padding-top: 20px;
  padding-bottom: 6px;
}

/* ---------- 首屏 ---------- */
.page-disclaimer .dc-hero {
  position: relative;
  display: grid;
  gap: 28px;
  padding: 26px 0 48px;
}

.page-disclaimer .dc-hero::before {
  content: "";
  position: absolute;
  top: -160px;
  left: -18%;
  width: 78%;
  height: 400px;
  background: radial-gradient(closest-side, rgba(23, 224, 176, 0.16), transparent 72%);
  pointer-events: none;
  z-index: 0;
}

.page-disclaimer .dc-hero > * {
  position: relative;
  z-index: 1;
}

.page-disclaimer .dc-hero__label {
  display: inline-block;
  color: var(--oy-neon);
}

.page-disclaimer .dc-hero__title {
  margin: 16px 0 20px;
  font-size: clamp(32px, 7.4vw, 60px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  max-width: 16ch;
}

.page-disclaimer .dc-hero__title em {
  font-style: normal;
  color: var(--oy-neon);
}

.page-disclaimer .dc-hero__lead {
  max-width: 48ch;
  font-size: 16px;
  line-height: 1.9;
  color: var(--dc-ink-soft);
}

.page-disclaimer .dc-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--dc-line-soft);
  font-family: var(--oy-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--oy-muted);
}

.page-disclaimer .dc-figure {
  margin: 0;
  border: 1px solid var(--dc-line);
  background: var(--oy-layer);
  overflow: hidden;
}

.page-disclaimer .dc-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}

.page-disclaimer .dc-figure figcaption {
  padding: 12px 14px;
  border-top: 1px solid var(--dc-line);
  font-size: 12px;
  line-height: 1.6;
  color: var(--oy-muted);
}

@media (min-width: 960px) {
  .page-disclaimer .dc-hero {
    grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
    align-items: end;
    gap: 52px;
    padding: 44px 0 76px;
  }
}

/* ---------- 章节外壳 ---------- */
.page-disclaimer .dc-block {
  padding: 42px 0;
  border-top: 1px solid var(--dc-line);
}

.page-disclaimer .dc-head {
  display: grid;
  gap: 10px;
  margin-bottom: 26px;
}

.page-disclaimer .dc-head__index {
  font-family: var(--oy-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.22em;
  color: var(--oy-gold);
}

.page-disclaimer .dc-head__title {
  margin: 0;
  font-size: clamp(23px, 4.4vw, 34px);
  font-weight: 900;
  line-height: 1.22;
  letter-spacing: -0.015em;
}

.page-disclaimer .dc-head__lead {
  margin: 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--dc-ink-soft);
}

@media (min-width: 900px) {
  .page-disclaimer .dc-block {
    padding: 58px 0;
  }

  .page-disclaimer .dc-head {
    grid-template-columns: 88px minmax(0, 1fr);
    column-gap: 26px;
    row-gap: 12px;
    margin-bottom: 34px;
  }

  .page-disclaimer .dc-head__index {
    grid-column: 1;
    grid-row: 1 / span 2;
    padding-top: 12px;
  }

  .page-disclaimer .dc-head__title,
  .page-disclaimer .dc-head__lead {
    grid-column: 2;
  }
}

/* ---------- 条款：左原文 + 右注释 ---------- */
.page-disclaimer .dc-terms {
  border-top: 1px solid var(--dc-line);
}

.page-disclaimer .dc-clause {
  display: grid;
  gap: 10px;
  padding: 20px 0;
  border-bottom: 1px solid var(--dc-line-soft);
}

.page-disclaimer .dc-clause__num {
  font-family: var(--oy-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--oy-gold);
}

.page-disclaimer .dc-clause__text {
  margin: 0;
  font-size: 16px;
  line-height: 1.82;
  color: var(--oy-ink);
}

.page-disclaimer .dc-clause__note {
  margin: 0;
  font-size: 13px;
  line-height: 1.85;
  color: var(--oy-muted);
}

@media (min-width: 900px) {
  .page-disclaimer .dc-clause {
    grid-template-columns: 62px minmax(0, 1.08fr) minmax(0, 0.92fr);
    column-gap: 30px;
    align-items: start;
    padding: 24px 0;
  }

  .page-disclaimer .dc-clause__note {
    border-left: 1px solid var(--dc-line-soft);
    padding-left: 22px;
  }
}

/* ---------- 状态分段切换 ---------- */
.page-disclaimer .dc-states {
  background: var(--oy-layer);
  border: 1px solid var(--dc-line);
  padding: 20px 18px;
}

.page-disclaimer .dc-states .oy-tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.page-disclaimer .dc-tab {
  appearance: none;
  -webkit-appearance: none;
  border: 1px solid var(--dc-line);
  background: var(--oy-raise);
  color: var(--oy-ink);
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 10px 20px;
  border-radius: var(--oy-radius);
  cursor: pointer;
  transition: background 200ms ease, border-color 200ms ease, color 200ms ease;
}

.page-disclaimer .dc-tab:hover {
  border-color: rgba(23, 224, 176, 0.5);
}

.page-disclaimer .dc-tab:focus-visible {
  outline: 2px solid var(--oy-neon-soft);
  outline-offset: 2px;
}

.page-disclaimer .dc-tab[aria-selected="true"] {
  background: rgba(23, 224, 176, 0.14);
  border-color: var(--oy-neon);
  color: var(--oy-neon-soft);
}

.page-disclaimer .dc-panel + .dc-panel {
  margin-top: 22px;
}

.page-disclaimer .dc-state {
  display: grid;
  gap: 14px;
  justify-items: start;
}

.page-disclaimer .dc-state__desc {
  margin: 0;
  max-width: 64ch;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--dc-ink-soft);
}

.page-disclaimer .dc-state__meta {
  display: grid;
  gap: 16px;
  margin: 0;
  width: 100%;
}

.page-disclaimer .dc-state__meta dt {
  margin-bottom: 6px;
  font-family: var(--oy-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--oy-gold);
}

.page-disclaimer .dc-state__meta dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--oy-muted);
}

.page-disclaimer .dc-badge-retired {
  border-color: rgba(143, 168, 188, 0.6) !important;
  color: #AFC3D3 !important;
}

@media (min-width: 720px) {
  .page-disclaimer .dc-state__meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
  }
}

@media (min-width: 900px) {
  .page-disclaimer .dc-states {
    padding: 26px 30px 30px;
  }
}

/* ---------- 引用写法：左条款 右示例 ---------- */
.page-disclaimer .dc-cite {
  display: grid;
  gap: 28px;
}

.page-disclaimer .dc-terms--tight .dc-clause:last-child {
  border-bottom: 1px solid var(--dc-line-soft);
}

.page-disclaimer .dc-samples {
  display: grid;
  gap: 14px;
  align-content: start;
}

.page-disclaimer .dc-samples__label {
  margin: 0;
  font-family: var(--oy-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--oy-muted);
}

.page-disclaimer .dc-quote {
  padding: 18px 20px;
  border: 1px solid var(--dc-line);
  border-left: 3px solid var(--oy-gold);
  background: var(--oy-raise);
  font-family: var(--oy-mono);
  font-size: 13px;
  line-height: 2.05;
  color: var(--oy-ink);
  word-break: break-word;
  overflow-x: auto;
}

.page-disclaimer .dc-quote b {
  color: var(--oy-gold);
  font-weight: 700;
  letter-spacing: 0.02em;
}

@media (min-width: 960px) {
  .page-disclaimer .dc-cite {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 46px;
    align-items: start;
  }

  .page-disclaimer .dc-samples {
    position: sticky;
    top: 120px;
  }
}

/* ---------- 条款内链接与页尾 ---------- */
.page-disclaimer .dc-clause__text a {
  color: var(--oy-neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(23, 224, 176, 0.4);
  transition: color 180ms ease, border-color 180ms ease;
}

.page-disclaimer .dc-clause__text a:hover {
  color: var(--oy-neon-soft);
  border-bottom-color: var(--oy-neon-soft);
}

.page-disclaimer .dc-tail {
  margin: 0;
  padding: 30px 0 58px;
  border-top: 1px solid var(--dc-line);
  font-size: 14px;
  line-height: 1.95;
  color: var(--oy-muted);
}

.page-disclaimer .dc-tail a {
  color: var(--oy-neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(23, 224, 176, 0.4);
}

.page-disclaimer .dc-tail a:hover {
  color: var(--oy-neon-soft);
}

/* ---------- 无障碍与动效降级 ---------- */
.page-disclaimer a:focus-visible,
.page-disclaimer .dc-tab:focus-visible {
  outline: 2px solid var(--oy-neon-soft);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .dc-tab,
  .page-disclaimer a {
    transition: none;
  }
}

@media (max-width: 480px) {
  .page-disclaimer .dc-hero__title {
    max-width: none;
  }

  .page-disclaimer .dc-quote {
    font-size: 12px;
    line-height: 1.9;
  }
}