/* =========================================================
   page-disclaimer —— 使用说明与免责声明
   文档封面风格 + 编号条款 + 细线引导
   ========================================================= */

.page-disclaimer {
  --disc-line: rgba(42, 53, 86, 0.45);
  --disc-green: var(--accent, #39FF88);
  --disc-orange: var(--accent-2, #FF6B1A);
  --disc-muted: var(--text-2, #B0B8C4);
  --disc-doc-indent: 20px;
  --disc-clause-indent: 16px;
  padding-bottom: 80px;
}

/* ---------- hero ---------- */

.page-disclaimer__hero {
  position: relative;
  padding: 24px 0 44px;
  border-bottom: 1px solid var(--divider);
  background:
    radial-gradient(circle at 12% 20%, rgba(57, 255, 136, 0.06), transparent 38%),
    linear-gradient(180deg, rgba(19, 26, 58, 0.2), transparent 80%);
}

.page-disclaimer__hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(42, 53, 86, 0.14) 1px, transparent 1px),
    linear-gradient(90deg, rgba(42, 53, 86, 0.14) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

.page-disclaimer__hero .site-container {
  position: relative;
  z-index: 1;
}

.page-disclaimer__breadcrumbs {
  margin-bottom: 28px;
}

.page-disclaimer__head {
  max-width: 880px;
}

.page-disclaimer__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--text-2);
  background: rgba(19, 26, 58, 0.72);
  border: 1px solid var(--disc-line);
  border-left: 3px solid var(--disc-green);
  padding: 10px 14px;
  margin-bottom: 28px;
}

.page-disclaimer__meta-sep {
  color: var(--disc-line);
}

.page-disclaimer__meta-status {
  color: var(--disc-green);
}

.page-disclaimer__copy {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-2);
  background: transparent;
  border: 1px solid var(--disc-line);
  padding: 5px 10px;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background-color 0.2s;
}

.page-disclaimer__copy:hover,
.page-disclaimer__copy:focus-visible {
  border-color: var(--disc-green);
  color: var(--disc-green);
  background: rgba(57, 255, 136, 0.06);
}

.page-disclaimer__copy-icon {
  font-size: 13px;
  line-height: 1;
  color: var(--disc-orange);
}

.page-disclaimer__head .kicker {
  margin-bottom: 12px;
}

.page-disclaimer__head h1 {
  font-family: var(--font-heading);
  font-size: clamp(30px, 5vw, 46px);
  line-height: 1.12;
  font-weight: 600;
  letter-spacing: 0.01em;
  margin: 0 0 18px;
  color: var(--text);
}

.page-disclaimer__lead {
  margin: 0;
  max-width: 640px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-2);
}

/* ---------- index ---------- */

.page-disclaimer__toc {
  margin: 44px 0 40px;
  padding: 18px 20px 16px;
  background: rgba(19, 26, 58, 0.42);
  border: 1px solid var(--disc-line);
  border-top: 3px solid var(--disc-green);
}

.page-disclaimer__toc-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--disc-green);
  margin-bottom: 12px;
}

.page-disclaimer__toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
}

.page-disclaimer__toc-list a {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-2);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.page-disclaimer__toc-list a:hover,
.page-disclaimer__toc-list a:focus-visible {
  color: var(--disc-green);
  border-bottom-color: var(--disc-green);
}

/* ---------- clause ---------- */

.page-disclaimer__doc {
  margin-left: 10px;
  padding-left: var(--disc-doc-indent);
  border-left: 2px solid var(--disc-line);
}

.page-disclaimer__clause {
  position: relative;
  padding: 0 0 52px var(--disc-clause-indent);
}

.page-disclaimer__clause:last-child {
  padding-bottom: 8px;
}

.page-disclaimer__clause-head {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.page-disclaimer__clause-head::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--disc-doc-indent) - var(--disc-clause-indent) - 4.5px);
  top: 50%;
  width: 9px;
  height: 9px;
  margin-top: -4.5px;
  background: var(--bg-base);
  border: 2px solid var(--disc-line);
  transform: rotate(45deg);
  transition: background-color 0.25s, border-color 0.25s;
}

.page-disclaimer__clause:hover .page-disclaimer__clause-head::before,
.page-disclaimer__clause:focus-within .page-disclaimer__clause-head::before {
  background: var(--disc-green);
  border-color: var(--disc-green);
}

.page-disclaimer__clause-num {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--disc-green);
  border: 1px solid var(--disc-line);
  background: rgba(19, 26, 58, 0.8);
  padding: 3px 9px;
  transition: border-color 0.25s, background-color 0.25s;
}

.page-disclaimer__clause:hover .page-disclaimer__clause-num,
.page-disclaimer__clause:focus-within .page-disclaimer__clause-num {
  border-color: var(--disc-green);
  background: rgba(57, 255, 136, 0.08);
}

.page-disclaimer__clause-en {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--disc-muted);
}

.page-disclaimer__clause-title {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 500;
  margin: 0 0 16px;
  letter-spacing: 0.01em;
}

.page-disclaimer__clause-body p {
  margin: 0 0 14px;
  padding-left: 14px;
  border-left: 2px solid var(--disc-line);
  font-size: 14px;
  line-height: 1.85;
  color: var(--text-2);
  transition: border-color 0.25s;
}

.page-disclaimer__clause-body p:hover {
  border-color: var(--disc-green);
}

.page-disclaimer__clause-body p:last-child {
  margin-bottom: 0;
}

/* ---------- related ---------- */

.page-disclaimer__related {
  border-top: 1px solid var(--divider);
  margin-top: 32px;
  padding: 56px 0 64px;
  background: linear-gradient(180deg, transparent, rgba(19, 26, 58, 0.3));
}

.page-disclaimer__related .section-head {
  margin-bottom: 28px;
}

.page-disclaimer__related-grid {
  display: grid;
  gap: 14px;
}

.page-disclaimer__related-card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--disc-line);
  padding: 22px 18px;
  text-decoration: none;
  transition: border-color 0.25s, background-color 0.25s, transform 0.25s;
}

.page-disclaimer__related-card:hover,
.page-disclaimer__related-card:focus-visible {
  border-color: var(--disc-green);
  background: var(--bg-elev);
  transform: translateY(-2px);
}

.page-disclaimer__related-tag {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--disc-green);
  margin-bottom: 10px;
}

.page-disclaimer__related-name {
  display: block;
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 8px;
}

.page-disclaimer__related-desc {
  display: block;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-2);
}

/* ---------- visual ---------- */

.page-disclaimer__visual {
  padding: 48px 0 0;
}

.page-disclaimer__visual-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 8 / 1;
  min-height: 64px;
  object-fit: cover;
  border: 1px solid var(--disc-line);
  background: var(--bg-card);
}

.page-disclaimer__visual-caption {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding-top: 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--disc-muted);
}

.page-disclaimer__visual-code {
  color: var(--disc-green);
}

/* ---------- desktop ---------- */

@media (min-width: 768px) {
  .page-disclaimer {
    --disc-doc-indent: 36px;
    --disc-clause-indent: 24px;
    padding-bottom: 120px;
  }

  .page-disclaimer__hero {
    padding: 40px 0 64px;
  }

  .page-disclaimer__breadcrumbs {
    margin-bottom: 40px;
  }

  .page-disclaimer__meta {
    gap: 10px 14px;
    font-size: 12px;
    padding: 12px 18px;
    margin-bottom: 36px;
  }

  .page-disclaimer__head h1 {
    font-size: clamp(38px, 4.5vw, 52px);
  }

  .page-disclaimer__lead {
    font-size: 16px;
  }

  .page-disclaimer__toc {
    margin: 56px 0 52px;
    padding: 20px 24px 18px;
  }

  .page-disclaimer__toc-list {
    gap: 12px 36px;
  }

  .page-disclaimer__doc {
    margin-left: 32px;
  }

  .page-disclaimer__clause {
    padding-bottom: 64px;
  }

  .page-disclaimer__clause-title {
    font-size: 26px;
  }

  .page-disclaimer__clause-body p {
    font-size: 15px;
  }

  .page-disclaimer__related-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-disclaimer__related-card {
    padding: 28px 22px;
  }

  .page-disclaimer__visual {
    padding-top: 64px;
  }
}