/* ========================================
   使用说明页 · 页面专属样式
   作用域：.page-disclaimer
   ======================================== */

.page-disclaimer {
  --doc-orange: #FF6A00;
  --doc-orange-soft: rgba(255, 106, 0, 0.14);
  background:
    radial-gradient(ellipse 60% 40% at 85% 0%, var(--doc-orange-soft), transparent 65%),
    linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-dark) 100%);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.7;
}

/* ---------- Hero 区域 ---------- */

.page-disclaimer .doc-hero {
  padding: calc(var(--header-h) + 2.5rem) var(--gutter) 2.5rem;
  border-bottom: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}

.page-disclaimer .doc-hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background: linear-gradient(105deg, transparent 0%, transparent 55%, rgba(255, 106, 0, 0.03) 55%, rgba(255, 106, 0, 0.08) 100%);
}

.page-disclaimer .doc-hero-inner {
  max-width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

.page-disclaimer .doc-hero .breadcrumb {
  margin-bottom: 1.25rem;
}

.page-disclaimer .doc-hero .section-kicker {
  color: var(--doc-orange);
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.page-disclaimer .doc-hero-text h1 {
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 5vw, 3.5rem);
  font-style: italic;
  line-height: 1.02;
  margin: 0 0 1.1rem;
  letter-spacing: 0.01em;
}

.page-disclaimer .doc-hero-text h1::after {
  content: "";
  display: block;
  width: 3.25rem;
  height: 4px;
  background: var(--doc-orange);
  margin-top: 1rem;
}

.page-disclaimer .doc-hero-desc {
  color: var(--muted);
  font-size: 1.02rem;
  max-width: 32rem;
  margin: 0;
}

.page-disclaimer .doc-hero-media {
  position: relative;
  aspect-ratio: 2 / 1;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-dark);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.35);
}

.page-disclaimer .doc-hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-disclaimer .doc-hero-badge {
  position: absolute;
  right: 1rem;
  bottom: 1rem;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.45rem 0.85rem;
  background: rgba(8, 23, 46, 0.88);
  border: 1px solid rgba(255, 106, 0, 0.45);
  border-radius: var(--radius);
}

.page-disclaimer .doc-hero-badge-num {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-style: italic;
  line-height: 1;
  color: var(--doc-orange);
}

.page-disclaimer .doc-hero-badge-label {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--text);
}

/* ---------- 关键数据带 ---------- */

.page-disclaimer .doc-stats {
  position: relative;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--line);
  background: rgba(8, 23, 46, 0.72);
}

.page-disclaimer .doc-stats::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--doc-orange), transparent 72%);
}

.page-disclaimer .doc-stats-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem 1rem;
}

.page-disclaimer .doc-stat-item {
  border-left: 2px solid var(--line);
  padding-left: 1rem;
  transition: border-color 0.25s ease;
}

.page-disclaimer .doc-stat-item:hover {
  border-color: var(--doc-orange);
}

.page-disclaimer .doc-stat-num {
  font-family: var(--font-display);
  font-size: 1.9rem;
  font-style: italic;
  line-height: 1;
  margin: 0 0 0.35rem;
}

.page-disclaimer .doc-stat-num span {
  font-family: var(--font-body);
  font-style: normal;
  font-weight: 700;
  font-size: 1rem;
  color: var(--doc-orange);
}

.page-disclaimer .doc-stat-label {
  font-size: 0.78rem;
  color: var(--muted);
  margin: 0;
  letter-spacing: 0.05em;
}

/* ---------- 文档主体布局 ---------- */

.page-disclaimer .doc-layout {
  max-width: var(--container);
  margin: 0 auto;
  padding: 2.5rem var(--gutter) var(--space-2xl);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2.5rem;
}

.page-disclaimer .doc-content {
  min-width: 0;
  max-width: 46rem;
}

/* ---------- 目录 ---------- */

.page-disclaimer .doc-toc {
  border-left: 2px solid var(--line);
  padding-left: 1.25rem;
}

.page-disclaimer .doc-toc-title {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 0.9rem;
}

.page-disclaimer .doc-toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}

.page-disclaimer .doc-toc-link {
  display: block;
  padding: 0.55rem 0;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease;
}

.page-disclaimer .doc-toc-link:hover,
.page-disclaimer .doc-toc-link:focus-visible {
  color: var(--doc-orange);
}

.page-disclaimer .doc-toc-meta {
  margin-top: 1.6rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
  font-size: 0.85rem;
  color: var(--muted);
}

.page-disclaimer .doc-toc-meta p {
  margin: 0.35rem 0;
}

.page-disclaimer .doc-toc-meta a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 106, 0, 0.35);
  transition: color 0.2s ease;
}

.page-disclaimer .doc-toc-meta a:hover {
  color: var(--doc-orange);
}

/* ---------- 文档章节 ---------- */

.page-disclaimer .doc-section {
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: calc(var(--header-h) + 1.5rem);
}

.page-disclaimer .doc-section:first-child {
  padding-top: 0;
}

.page-disclaimer .doc-section:last-child {
  border-bottom: none;
}

.page-disclaimer .doc-section:target {
  background: linear-gradient(90deg, rgba(255, 106, 0, 0.08), transparent 80%);
  border-radius: var(--radius);
}

.page-disclaimer .doc-section:target .doc-section-head h2 {
  color: var(--accent);
}

.page-disclaimer .doc-section-head {
  display: flex;
  align-items: baseline;
  gap: 0.9rem;
  margin-bottom: 1.2rem;
  padding-left: 0.75rem;
  border-left: 3px solid var(--doc-orange);
}

.page-disclaimer .doc-section-num {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-style: italic;
  line-height: 1;
  color: var(--doc-orange);
}

.page-disclaimer .doc-section-head h2 {
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-style: italic;
  font-weight: 700;
  line-height: 1.1;
  margin: 0;
}

.page-disclaimer .doc-section p {
  margin-bottom: 1.1rem;
  color: var(--text);
}

.page-disclaimer .doc-section p:last-of-type {
  margin-bottom: 0;
}

.page-disclaimer .doc-section a {
  color: var(--doc-orange);
  text-decoration-color: rgba(255, 106, 0, 0.4);
  text-underline-offset: 0.2em;
}

.page-disclaimer .doc-section a:hover,
.page-disclaimer .doc-section a:focus-visible {
  color: var(--accent);
}

.page-disclaimer .doc-list {
  margin: 0 0 1.25rem;
  padding-left: 1.4rem;
  color: var(--text);
}

.page-disclaimer .doc-list li {
  margin-bottom: 0.45rem;
  padding-left: 0.25rem;
}

.page-disclaimer .doc-list li::marker {
  color: var(--doc-orange);
}

/* ---------- 提示框 ---------- */

.page-disclaimer .doc-callout {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  padding: 1rem 1.1rem;
  background: rgba(16, 42, 74, 0.7);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  margin: 1.4rem 0 0;
}

.page-disclaimer .doc-callout--orange {
  border-left-color: var(--doc-orange);
}

.page-disclaimer .doc-callout-mark {
  flex: none;
  width: 1.5rem;
  height: 1.5rem;
  min-width: 1.5rem;
  border-radius: 999px;
  background: var(--accent);
  color: var(--bg-dark);
  font-size: 0.85rem;
  font-weight: 800;
  line-height: 1.5rem;
  text-align: center;
}

.page-disclaimer .doc-callout--orange .doc-callout-mark {
  background: var(--doc-orange);
}

.page-disclaimer .doc-callout p {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* ---------- 可展开警示框 ---------- */

.page-disclaimer .doc-warning {
  margin: 1.5rem 0;
  border: 1px solid rgba(255, 106, 0, 0.4);
  border-left: 4px solid var(--doc-orange);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: rgba(255, 106, 0, 0.06);
}

.page-disclaimer .doc-warning summary {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.95rem 1.1rem;
  cursor: pointer;
  list-style: none;
  font-size: 0.95rem;
  color: var(--text);
}

.page-disclaimer .doc-warning summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer .doc-warning-icon {
  width: 1.5rem;
  height: 1.5rem;
  min-width: 1.5rem;
  border-radius: 999px;
  background: var(--doc-orange);
  color: var(--bg-dark);
  font-size: 0.85rem;
  font-weight: 800;
  line-height: 1.5rem;
  text-align: center;
}

.page-disclaimer .doc-warning-toggle {
  margin-left: auto;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--doc-orange);
  transition: transform 0.2s ease;
}

.page-disclaimer .doc-warning[open] .doc-warning-toggle {
  transform: rotate(45deg);
}

.page-disclaimer .doc-warning-body {
  padding: 0 1.1rem 1rem 3.35rem;
}

.page-disclaimer .doc-warning-body p {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.65;
  margin: 0;
}

/* ---------- 联系信息 ---------- */

.page-disclaimer .doc-contact-list {
  display: grid;
  gap: 0.75rem;
  margin: 1.25rem 0 1.5rem;
  padding: 0;
}

.page-disclaimer .doc-contact-item {
  display: grid;
  grid-template-columns: 5rem minmax(0, 1fr);
  gap: 0.3rem 1rem;
  padding: 0.75rem 1rem;
  background: rgba(16, 42, 74, 0.5);
  border-radius: var(--radius);
}

.page-disclaimer .doc-contact-item dt {
  color: var(--muted);
  font-size: 0.85rem;
}

.page-disclaimer .doc-contact-item dd {
  margin: 0;
  color: var(--text);
  font-size: 0.95rem;
}

.page-disclaimer .doc-contact-item dd + dd {
  margin-top: 0.25rem;
  font-size: 0.9rem;
  color: var(--muted);
}

/* ---------- 桌面端 ---------- */

@media (min-width: 48rem) {
  .page-disclaimer .doc-stats-inner {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-disclaimer .doc-section-head h2 {
    font-size: 2rem;
  }
}

@media (min-width: 64rem) {
  .page-disclaimer .doc-hero {
    padding-top: calc(var(--header-h) + 3rem);
  }
  .page-disclaimer .doc-hero-inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 3rem;
  }
  .page-disclaimer .doc-hero-text h1 {
    font-size: clamp(2.5rem, 4vw, 3.75rem);
  }
  .page-disclaimer .doc-layout {
    grid-template-columns: 13.5rem minmax(0, 1fr);
    gap: 3.5rem;
    padding-top: 3rem;
  }
  .page-disclaimer .doc-toc {
    position: sticky;
    top: calc(var(--header-h) + 1.2rem);
    align-self: start;
  }
  .page-disclaimer .doc-toc-link:hover,
  .page-disclaimer .doc-toc-link:focus-visible {
    border-bottom-color: var(--doc-orange);
    padding-left: 0.4rem;
  }
  .page-disclaimer .doc-section {
    padding: 2rem 0;
  }
}

/* ---------- 移动端目录横向标签 ---------- */

@media (max-width: 63.99rem) {
  .page-disclaimer .doc-toc {
    border-left: none;
    padding-left: 0;
    overflow-x: auto;
  }
  .page-disclaimer .doc-toc-list {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.4rem;
  }
  .page-disclaimer .doc-toc-link {
    display: inline-block;
    padding: 0.35rem 0.8rem;
    font-size: 0.85rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(16, 42, 74, 0.5);
    white-space: nowrap;
  }
  .page-disclaimer .doc-toc-link:hover,
  .page-disclaimer .doc-toc-link:focus-visible {
    border-color: rgba(255, 106, 0, 0.5);
  }
  .page-disclaimer .doc-toc-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem 1.2rem;
    border-top: none;
    margin-top: 1rem;
    padding-top: 0;
    font-size: 0.8rem;
  }
  .page-disclaimer .doc-toc-meta p {
    margin: 0;
  }
}