/* ===== 使用说明页 · page-disclaimer ===== */
.page-disclaimer {
  --disc-ink-line: rgba(10, 39, 64, 0.16);
  --disc-ink-line-soft: rgba(10, 39, 64, 0.09);
  --disc-ink-text: #0A2740;
  --disc-ink-muted: #4C6478;
  --disc-gap: 36px;
}

/* ---------- 首屏 ---------- */
.page-disclaimer .disc-hero {
  position: relative;
  padding: 26px 0 46px;
  background:
    radial-gradient(90% 120% at 92% -10%, rgba(47, 209, 220, 0.13), transparent 62%),
    radial-gradient(76% 110% at 0% 112%, rgba(255, 106, 26, 0.12), transparent 60%),
    linear-gradient(180deg, var(--c-deep) 0%, var(--c-layer) 100%);
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .disc-hero .breadcrumbs {
  margin-bottom: 26px;
}

.page-disclaimer .disc-hero .breadcrumb-link {
  color: rgba(230, 237, 242, 0.6);
  transition: color var(--dur) var(--ease);
}

.page-disclaimer .disc-hero .breadcrumb-link:hover,
.page-disclaimer .disc-hero .breadcrumb-link[aria-current="page"] {
  color: var(--c-cyan);
}

.page-disclaimer .disc-hero-grid {
  display: grid;
  gap: 28px;
}

.page-disclaimer .disc-hero-copy .eyebrow {
  margin: 0 0 14px;
  color: var(--c-cyan);
}

.page-disclaimer .disc-hero-copy h1 {
  margin: 0;
  max-width: 18ch;
  font-size: 34px;
  line-height: 1.18;
  letter-spacing: -0.01em;
  color: var(--c-mist);
}

.page-disclaimer .disc-lede {
  margin: 18px 0 0;
  max-width: 42ch;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(230, 237, 242, 0.76);
}

.page-disclaimer .disc-seal {
  margin: 0;
  width: 168px;
  justify-self: start;
  border: 1px solid var(--line);
  background: linear-gradient(150deg, rgba(10, 39, 64, 0.92), rgba(2, 10, 18, 0.96));
}

.page-disclaimer .disc-seal img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(0.8) contrast(1.06);
}

/* ---------- 浅色阅读区 ---------- */
.page-disclaimer .disc-article {
  background: var(--c-paper);
  color: var(--disc-ink-text);
  padding: 34px 0 64px;
}

.page-disclaimer .disc-layout {
  display: grid;
  gap: 30px;
}

/* ---------- 左侧条款目录 ---------- */
.page-disclaimer .disc-toc {
  border: 1px solid var(--disc-ink-line-soft);
  background: rgba(255, 255, 255, 0.66);
  padding: 14px 16px 10px;
  border-radius: var(--radius);
}

.page-disclaimer .disc-toc-title {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--disc-ink-muted);
  text-transform: uppercase;
}

.page-disclaimer .disc-toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0 16px;
}

.page-disclaimer .disc-toc-link {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 5px 0;
  font-size: 14px;
  line-height: 1.4;
  color: var(--disc-ink-text);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-disclaimer .disc-toc-no {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--c-orange);
}

.page-disclaimer .disc-toc-link:hover {
  color: var(--c-orange);
}

/* ---------- 条款区块 ---------- */
.page-disclaimer .disc-section {
  padding-bottom: var(--disc-gap);
  margin-bottom: var(--disc-gap);
  border-bottom: 1px solid var(--disc-ink-line-soft);
  scroll-margin-top: calc(var(--header-total) + 16px);
}

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

.page-disclaimer .disc-sec-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 10px;
}

.page-disclaimer .disc-sec-no {
  font-family: var(--font-cond);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--c-orange);
}

.page-disclaimer .disc-sec-title {
  margin: 0;
  font-size: 22px;
  line-height: 1.32;
  letter-spacing: -0.01em;
  color: var(--c-deep);
}

.page-disclaimer .disc-sec-sub {
  margin: 0 0 20px;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.74;
  color: var(--disc-ink-muted);
}

/* 引用结构示意图 */
.page-disclaimer .disc-diagram {
  display: block;
  width: 100%;
  max-width: 340px;
  height: auto;
  margin: 0 0 22px;
  overflow: visible;
}

.page-disclaimer .disc-diagram text {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  fill: var(--disc-ink-muted);
}

/* ---------- 引用示例块 ---------- */
.page-disclaimer .cite-stack {
  display: grid;
  gap: 14px;
}

.page-disclaimer .cite-card {
  position: relative;
  background: linear-gradient(155deg, var(--c-layer), var(--c-ink));
  border: 1px solid rgba(126, 147, 163, 0.3);
  border-radius: var(--radius);
  padding: 14px 16px 18px;
  box-shadow: 0 12px 26px rgba(2, 10, 18, 0.22);
}

.page-disclaimer .cite-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--c-orange), var(--c-amber) 62%, transparent);
}

.page-disclaimer .cite-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(126, 147, 163, 0.22);
}

.page-disclaimer .cite-label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--c-cyan);
}

.page-disclaimer .cite-copy {
  flex: 0 0 auto;
  padding: 4px 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-cyan);
  background: transparent;
  border: 1px solid rgba(47, 209, 220, 0.42);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-disclaimer .cite-copy:hover {
  background: rgba(47, 209, 220, 0.14);
}

.page-disclaimer .cite-copy[data-copied] {
  color: var(--c-orange);
  border-color: rgba(255, 106, 26, 0.55);
  background: rgba(255, 106, 26, 0.14);
}

.page-disclaimer .cite-sample {
  margin: 14px 0 0;
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--c-mist);
  word-break: break-word;
}

.page-disclaimer .disc-note {
  margin: 18px 0 0;
  padding-left: 14px;
  max-width: 54ch;
  border-left: 2px solid var(--c-cyan);
  font-size: 14px;
  line-height: 1.76;
  color: var(--disc-ink-muted);
}

/* ---------- 分类条目列表 ---------- */
.page-disclaimer .disc-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-disclaimer .disc-list-item {
  padding: 16px 0;
  max-width: 58ch;
  border-top: 1px solid var(--disc-ink-line-soft);
  font-size: 15px;
  line-height: 1.78;
  color: var(--disc-ink-text);
}

.page-disclaimer .disc-list-item:last-child {
  border-bottom: 1px solid var(--disc-ink-line-soft);
}

.page-disclaimer .disc-list-key {
  display: block;
  margin-bottom: 6px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--c-orange);
}

/* ---------- 折叠自查 ---------- */
.page-disclaimer .disc-accordion {
  border-top: 1px solid var(--disc-ink-line-soft);
}

.page-disclaimer .disc-accordion .accordion-item {
  border-bottom: 1px solid var(--disc-ink-line-soft);
}

.page-disclaimer .disc-accordion .accordion-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 15px 0;
  background: transparent;
  border: 0;
  text-align: left;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--c-deep);
  cursor: pointer;
  transition: color var(--dur) var(--ease);
}

.page-disclaimer .disc-accordion .accordion-trigger:hover {
  color: var(--c-orange);
}

.page-disclaimer .disc-accordion .accordion-sign {
  position: relative;
  flex: 0 0 auto;
  width: 14px;
  height: 14px;
}

.page-disclaimer .disc-accordion .accordion-sign::before,
.page-disclaimer .disc-accordion .accordion-sign::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--c-orange);
  transform: translate(-50%, -50%);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.page-disclaimer .disc-accordion .accordion-sign::before {
  width: 14px;
  height: 1.5px;
}

.page-disclaimer .disc-accordion .accordion-sign::after {
  width: 1.5px;
  height: 14px;
}

.page-disclaimer .disc-accordion .accordion-trigger[aria-expanded="true"] .accordion-sign::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-disclaimer .disc-accordion .accordion-panel {
  padding: 0 0 18px;
}

.page-disclaimer .disc-accordion .accordion-panel p {
  margin: 0;
  max-width: 58ch;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--disc-ink-muted);
}

/* ---------- 舒缓段落区 ---------- */
.page-disclaimer .disc-section--calm {
  padding-bottom: 46px;
  margin-bottom: 46px;
}

.page-disclaimer .disc-prose {
  max-width: 56ch;
}

.page-disclaimer .disc-prose p {
  margin: 0 0 16px;
  font-size: 15.5px;
  line-height: 1.86;
  color: var(--disc-ink-text);
}

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

/* ---------- 收束区 ---------- */
.page-disclaimer .disc-tail {
  border-top: 1px solid var(--disc-ink-line);
  border-bottom: 0;
  padding-top: 34px;
  padding-bottom: 0;
  margin-bottom: 0;
}

.page-disclaimer .disc-tail-title {
  margin: 0 0 10px;
  font-size: 20px;
  line-height: 1.34;
  color: var(--c-deep);
}

.page-disclaimer .disc-tail-text {
  margin: 0 0 20px;
  max-width: 50ch;
  font-size: 15px;
  line-height: 1.78;
  color: var(--disc-ink-muted);
}

.page-disclaimer .disc-tail-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 断点 ---------- */
@media (min-width: 620px) {
  .page-disclaimer .cite-stack {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-disclaimer .disc-toc-list {
    gap: 0 22px;
  }
}

@media (min-width: 860px) {
  .page-disclaimer .disc-hero {
    padding: 34px 0 62px;
  }

  .page-disclaimer .disc-hero-grid {
    grid-template-columns: minmax(0, 1fr) 224px;
    align-items: center;
    gap: 56px;
  }

  .page-disclaimer .disc-hero-copy h1 {
    font-size: 46px;
  }

  .page-disclaimer .disc-lede {
    font-size: 17px;
  }

  .page-disclaimer .disc-seal {
    width: 224px;
    justify-self: end;
  }

  .page-disclaimer .disc-article {
    padding: 48px 0 88px;
  }

  .page-disclaimer .disc-sec-title {
    font-size: 26px;
  }

  .page-disclaimer .disc-sec-no {
    font-size: 30px;
  }
}

@media (min-width: 1000px) {
  .page-disclaimer .disc-layout {
    grid-template-columns: 238px minmax(0, 1fr);
    gap: 64px;
    align-items: start;
  }

  .page-disclaimer .disc-toc {
    position: sticky;
    top: calc(var(--header-total) + 24px);
    padding: 0;
    border: 0;
    background: transparent;
    border-left: 1px solid var(--disc-ink-line);
  }

  .page-disclaimer .disc-toc-title {
    padding-left: 16px;
    margin-bottom: 14px;
  }

  .page-disclaimer .disc-toc-list {
    flex-direction: column;
    gap: 0;
  }

  .page-disclaimer .disc-toc-link {
    display: flex;
    padding: 9px 0 9px 15px;
    margin-left: -1px;
    border-left: 2px solid transparent;
    font-size: 14px;
    line-height: 1.5;
  }

  .page-disclaimer .disc-toc-link:hover {
    border-left-color: var(--c-orange);
    background: rgba(255, 106, 26, 0.07);
  }

  .page-disclaimer .disc-prose {
    max-width: 62ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .disc-toc-link,
  .page-disclaimer .cite-copy,
  .page-disclaimer .disc-accordion .accordion-trigger,
  .page-disclaimer .disc-accordion .accordion-sign::before,
  .page-disclaimer .disc-accordion .accordion-sign::after {
    transition-duration: 0.01ms;
  }
}