/* ===== 使用协议页 · page-disclaimer ===== */
.page-disclaimer {
  --dc-rail: 244px;
  --dc-grid: rgba(58, 68, 72, .14);
  background-color: var(--bg);
  background-image:
    linear-gradient(var(--dc-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--dc-grid) 1px, transparent 1px);
  background-size: 64px 64px, 64px 64px;
  background-position: 0 0, 0 0;
  color: var(--fg);
}

/* ---- 首屏 ---- */
.page-disclaimer .dc-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.page-disclaimer .dc-hero::before {
  content: "";
  position: absolute;
  inset: -2px;
  background: linear-gradient(135deg, var(--c-pine) 0%, var(--c-night) 46%, rgba(41, 224, 208, .13) 100%);
  clip-path: polygon(0 0, 100% 0, 100% 58%, 0 100%);
  pointer-events: none;
}

.page-disclaimer .dc-hero::after {
  content: "";
  position: absolute;
  right: -90px;
  top: -110px;
  width: 340px;
  height: 340px;
  border: 1px solid var(--line-cyan);
  transform: rotate(16deg);
  opacity: .55;
  pointer-events: none;
}

.page-disclaimer .dc-hero-inner {
  position: relative;
  z-index: 1;
  padding-top: clamp(38px, 6vw, 80px);
  padding-bottom: clamp(46px, 7vw, 92px);
}

.page-disclaimer .dc-h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(38px, 7vw, 72px);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -.02em;
  color: var(--c-cream);
}

.page-disclaimer .dc-lede {
  max-width: 62ch;
  margin: 18px 0 0;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.88;
  color: var(--fg-dim);
}

.page-disclaimer .dc-hero-meta {
  margin: 22px 0 0;
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--c-steel);
}

.page-disclaimer .dc-vert {
  position: absolute;
  right: 6px;
  top: clamp(52px, 8vw, 110px);
  writing-mode: vertical-rl;
  font-size: 11px;
  letter-spacing: .34em;
  color: var(--c-moss);
}

/* ---- 抽象图带 ---- */
.page-disclaimer .dc-band {
  border-bottom: 1px solid var(--line);
  background: rgba(14, 42, 38, .55);
}

.page-disclaimer .dc-band .wrap {
  padding-top: clamp(26px, 4vw, 42px);
  padding-bottom: clamp(26px, 4vw, 42px);
}

.page-disclaimer .dc-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--c-night);
}

.page-disclaimer .dc-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(.85) contrast(1.05);
}

.page-disclaimer .dc-figure .figure-caption {
  display: block;
  padding: 12px 16px;
  border-top: 1px solid var(--line-soft);
  font-size: 12.5px;
  letter-spacing: .05em;
  color: var(--c-steel);
}

/* ---- 主体布局 ---- */
.page-disclaimer .dc-body {
  padding-top: clamp(34px, 5vw, 62px);
  padding-bottom: clamp(56px, 8vw, 104px);
}

.page-disclaimer .dc-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
}

.page-disclaimer .dc-content {
  min-width: 0;
}

/* ---- 左侧目录 ---- */
.page-disclaimer .dc-toc-list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(14, 42, 38, .88), rgba(11, 27, 43, .88));
}

.page-disclaimer .dc-toc-list li {
  border-top: 1px solid var(--line-soft);
}

.page-disclaimer .dc-toc-list li:first-child {
  border-top: 0;
}

.page-disclaimer .dc-toc-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 14px;
  font-size: 14px;
  line-height: 1.4;
  color: var(--fg-dim);
  text-decoration: none;
  transition: color var(--t-fast), background-color var(--t-fast), box-shadow var(--t-fast);
}

.page-disclaimer .dc-toc-link:hover,
.page-disclaimer .dc-toc-link:focus-visible {
  color: var(--c-cyan);
  background: rgba(41, 224, 208, .07);
  box-shadow: inset 3px 0 0 var(--c-cyan);
  outline: none;
}

.page-disclaimer .dc-toc-num {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--c-clay);
  transition: color var(--t-fast);
}

.page-disclaimer .dc-toc-link:hover .dc-toc-num,
.page-disclaimer .dc-toc-link:focus-visible .dc-toc-num {
  color: var(--c-cyan);
}

.page-disclaimer .dc-top-link {
  display: inline-block;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--c-steel);
  text-decoration: none;
  transition: color var(--t-fast);
}

.page-disclaimer .dc-top-link:hover,
.page-disclaimer .dc-top-link:focus-visible {
  color: var(--c-amber);
  outline: none;
}

/* ---- 条款 ---- */
.page-disclaimer .dc-clause {
  scroll-margin-top: 126px;
  padding-top: clamp(24px, 3.4vw, 38px);
  border-top: 1px solid var(--line);
}

.page-disclaimer .dc-clause + .dc-clause {
  margin-top: clamp(32px, 5vw, 56px);
}

.page-disclaimer .dc-clause:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-disclaimer .dc-clause-head {
  display: flex;
  align-items: baseline;
  gap: clamp(12px, 2vw, 20px);
}

.page-disclaimer .dc-num {
  flex: 0 0 auto;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1;
  letter-spacing: .02em;
  color: var(--c-clay);
  padding-bottom: 3px;
  border-bottom: 2px solid rgba(180, 106, 74, .5);
}

.page-disclaimer .dc-clause-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--c-cream);
}

.page-disclaimer .dc-clause-body {
  margin-top: 18px;
}

.page-disclaimer .dc-clause-body p {
  max-width: 70ch;
  margin: 0 0 14px;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--fg-dim);
}

.page-disclaimer .dc-clause-body p:last-child {
  margin-bottom: 0;
}

.page-disclaimer .dc-clause-body a {
  color: var(--c-cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: color var(--t-fast);
}

.page-disclaimer .dc-clause-body a:hover,
.page-disclaimer .dc-clause-body a:focus-visible {
  color: var(--c-amber);
  outline: none;
}

.page-disclaimer .dc-list {
  list-style: none;
  max-width: 72ch;
  margin: 0 0 16px;
  padding: 0;
}

.page-disclaimer .dc-list li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 11px;
  font-size: 15.5px;
  line-height: 1.86;
  color: var(--fg-dim);
}

.page-disclaimer .dc-list li:last-child {
  margin-bottom: 0;
}

.page-disclaimer .dc-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 9px;
  height: 2px;
  background: var(--c-moss);
}

.page-disclaimer .dc-list strong {
  color: var(--c-cream);
  font-weight: 600;
}

/* ---- 数字条 ---- */
.page-disclaimer .dc-figures {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  list-style: none;
  margin: 22px 0 24px;
  padding: 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-disclaimer .dc-figures li {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 14px;
  background: rgba(14, 42, 38, .75);
}

.page-disclaimer .dc-fig-num {
  font-family: var(--font-mono);
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: .01em;
  color: var(--c-cyan);
  font-variant-numeric: tabular-nums;
}

.page-disclaimer .dc-fig-label {
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--c-steel);
}

/* ---- 强调块 ---- */
.page-disclaimer .dc-callout {
  max-width: 72ch;
  margin: 20px 0 0;
  padding: 16px 18px;
  border: 1px solid var(--line-amber);
  border-left: 3px solid var(--c-amber);
  background: rgba(245, 158, 66, .07);
  font-size: 15px;
  line-height: 1.86;
  color: var(--fg);
}

.page-disclaimer .dc-callout--cyan {
  border-color: var(--line-cyan);
  border-left-color: var(--c-cyan);
  background: rgba(41, 224, 208, .06);
}

.page-disclaimer .dc-tail {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 20px !important;
}

/* ---- 平板与桌面 ---- */
@media (min-width: 640px) {
  .page-disclaimer .dc-figures {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 980px) {
  .page-disclaimer .dc-layout {
    grid-template-columns: var(--dc-rail) minmax(0, 1fr);
    align-items: start;
  }

  .page-disclaimer .dc-rail {
    position: sticky;
    top: 116px;
    align-self: start;
  }
}

/* ---- 窄屏 ---- */
@media (max-width: 979px) {
  .page-disclaimer .dc-toc-list {
    display: flex;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
  }

  .page-disclaimer .dc-toc-list li {
    flex: 0 0 auto;
    border-top: 0;
    border-right: 1px solid var(--line-soft);
  }

  .page-disclaimer .dc-toc-list li:last-child {
    border-right: 0;
  }

  .page-disclaimer .dc-toc-link {
    white-space: nowrap;
    padding: 12px 14px;
  }

  .page-disclaimer .dc-toc-link:hover,
  .page-disclaimer .dc-toc-link:focus-visible {
    box-shadow: inset 0 -3px 0 var(--c-cyan);
  }
}

@media (max-width: 719px) {
  .page-disclaimer .dc-vert {
    display: none;
  }

  .page-disclaimer .dc-hero::after {
    width: 220px;
    height: 220px;
    right: -80px;
    top: -90px;
  }

  .page-disclaimer .dc-clause-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .page-disclaimer .dc-num {
    font-size: 20px;
  }

  .page-disclaimer .dc-figures {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}