/* ===== 页面作用域：page-disclaimer ===== */
.page-disclaimer {
  /* 页面级变量 */
  --page-bg: var(--color-bg-dark);
  --page-text: var(--color-text-primary);
  --page-text-muted: var(--color-text-secondary);
  --page-border-color: var(--color-secondary);
  --page-accent: var(--color-accent);
  --page-surface: var(--color-surface);
  --page-clause-border: rgba(140, 158, 171, 0.2);
  --page-clause-hover-bg: rgba(255, 107, 53, 0.06);
  --page-details-transition: 0.3s ease;
}

/* ===== 面包屑 ===== */
.page-disclaimer .breadcrumb {
  padding-top: 2rem;
  padding-bottom: 0.5rem;
}

.page-disclaimer .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  margin: 0;
  padding: 0;
  font-family: var(--font-body);
  font-size: 0.875rem;
  color: var(--page-text-muted);
}

.page-disclaimer .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 0.5rem;
  color: var(--page-border-color);
}

.page-disclaimer .breadcrumb__link {
  color: var(--page-text-muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}

.page-disclaimer .breadcrumb__link:hover {
  color: var(--page-accent);
  border-bottom-color: var(--page-accent);
}

.page-disclaimer .breadcrumb__current {
  color: var(--page-text);
  font-weight: 600;
}

/* ===== 首屏 ===== */
.page-disclaimer__hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-top: 2rem;
  padding-bottom: 3rem;
  border-bottom: 2px solid var(--page-border-color);
  margin-bottom: 2rem;
}

.page-disclaimer__hero-icon {
  margin-bottom: 1.5rem;
  width: 120px;
  height: 120px;
  border: 2px solid var(--page-border-color);
  padding: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--page-surface);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.3s, border-color 0.3s;
}

.page-disclaimer__hero-icon:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--page-accent);
}

.page-disclaimer__hero-img {
  width: 100%;
  height: auto;
  object-fit: contain;
  display: block;
}

.page-disclaimer__title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 700;
  color: var(--page-text);
  margin: 0 0 0.75rem;
  line-height: 1.2;
  letter-spacing: -0.02em;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

.page-disclaimer__subtitle {
  font-family: var(--font-body);
  font-size: clamp(1rem, 2.5vw, 1.2rem);
  color: var(--page-text-muted);
  max-width: 600px;
  line-height: 1.6;
  margin: 0;
}

/* ===== 章节（可折叠） ===== */
.page-disclaimer__section {
  margin-bottom: 1.5rem;
}

.page-disclaimer__details {
  border: 2px solid var(--page-border-color);
  background: var(--page-surface);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.3s, border-color 0.3s;
  overflow: hidden;
}

.page-disclaimer__details:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(140, 158, 171, 0.5);
}

.page-disclaimer__details[open] {
  border-color: var(--page-border-color);
}

.page-disclaimer__summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 1.5rem;
  cursor: pointer;
  list-style: none;
  user-select: none;
  background: var(--page-surface);
  border-bottom: 1px solid transparent;
  transition: background 0.2s;
}

.page-disclaimer__summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer__summary:hover {
  background: rgba(255, 107, 53, 0.05);
}

.page-disclaimer__details[open] .page-disclaimer__summary {
  border-bottom-color: var(--page-border-color);
}

.page-disclaimer__section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.3rem, 3vw, 1.65rem);
  font-weight: 700;
  color: var(--page-text);
  margin: 0;
  letter-spacing: -0.01em;
}

.page-disclaimer__toggle-icon {
  width: 24px;
  height: 24px;
  position: relative;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

.page-disclaimer__toggle-icon::before,
.page-disclaimer__toggle-icon::after {
  content: "";
  position: absolute;
  background: var(--page-accent);
  transition: transform 0.3s ease;
}

.page-disclaimer__toggle-icon::before {
  width: 16px;
  height: 2px;
  top: 11px;
  left: 4px;
}

.page-disclaimer__toggle-icon::after {
  width: 2px;
  height: 16px;
  top: 4px;
  left: 11px;
}

.page-disclaimer__details[open] .page-disclaimer__toggle-icon {
  transform: rotate(45deg);
}

/* ===== 条款内容区 ===== */
.page-disclaimer__content {
  padding: 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.page-disclaimer__clause {
  display: flex;
  gap: 1rem;
  padding: 0.75rem 1rem;
  border-left: 3px solid transparent;
  transition: background 0.2s, border-color 0.2s;
}

.page-disclaimer__clause:hover {
  background: var(--page-clause-hover-bg);
  border-left-color: var(--page-accent);
}

.page-disclaimer__clause-num {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--page-accent);
  min-width: 2.5rem;
  flex-shrink: 0;
  line-height: 1.6;
}

.page-disclaimer__clause-num.highlight {
  background: var(--page-accent);
  color: var(--color-bg-dark);
  padding: 0 0.5rem;
  display: inline-block;
  height: fit-content;
  line-height: 1.8;
  font-size: 0.95rem;
}

.page-disclaimer__clause-body {
  flex: 1;
}

.page-disclaimer__clause-text {
  font-family: var(--font-body);
  font-size: clamp(0.9rem, 2vw, 1rem);
  color: var(--page-text-muted);
  line-height: 1.7;
  margin: 0;
}

/* ===== 分割线 ===== */
.page-disclaimer .divider--skew {
  margin: 2rem auto;
  height: 2px;
  background: linear-gradient(90deg, var(--page-border-color), transparent);
  clip-path: polygon(0 0, 100% 0, 95% 100%, 0 100%);
  max-width: 800px;
}

/* ===== 内链导航 ===== */
.page-disclaimer__nav-section {
  padding-top: 3rem;
  padding-bottom: 4rem;
}

.page-disclaimer__nav-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  max-width: 600px;
  margin: 0 auto;
}

.page-disclaimer__nav-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  background: var(--page-surface);
  border: 2px solid var(--page-border-color);
  box-shadow: var(--shadow-sm);
  text-decoration: none;
  transition: all 0.3s;
  gap: 1rem;
}

.page-disclaimer__nav-card:hover {
  border-color: var(--page-accent);
  box-shadow: var(--shadow-md);
  transform: translateX(6px);
}

.page-disclaimer__nav-card-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--page-text);
  margin: 0;
}

.page-disclaimer__nav-card-arrow {
  font-size: 1.3rem;
  color: var(--page-accent);
  transition: transform 0.2s;
}

.page-disclaimer__nav-card:hover .page-disclaimer__nav-card-arrow {
  transform: translateX(4px);
}

/* ===== 响应式 - 桌面 ===== */
@media (min-width: 768px) {
  .page-disclaimer__hero {
    padding-top: 3rem;
    padding-bottom: 4rem;
  }

  .page-disclaimer__hero-icon {
    width: 160px;
    height: 160px;
    padding: 1rem;
  }

  .page-disclaimer__summary {
    padding: 1.5rem 2rem;
  }

  .page-disclaimer__content {
    padding: 1.5rem 2rem;
  }

  .page-disclaimer__clause {
    padding: 0.85rem 1.25rem;
  }

  .page-disclaimer__nav-grid {
    grid-template-columns: repeat(2, 1fr);
    max-width: none;
    gap: 1.5rem;
  }

  .page-disclaimer__nav-card {
    padding: 1.5rem 2rem;
  }
}

@media (min-width: 1200px) {
  .page-disclaimer .container {
    max-width: var(--max-width);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--gap);
    padding-right: var(--gap);
  }

  .page-disclaimer__section {
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
  }
}

/* ===== 窄屏安全 ===== */
@media (max-width: 480px) {
  .page-disclaimer__hero {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .page-disclaimer__clause {
    flex-direction: column;
    gap: 0.25rem;
    padding: 0.5rem 0.75rem;
  }

  .page-disclaimer__clause-num {
    min-width: auto;
  }

  .page-disclaimer__summary {
    padding: 1rem 1.25rem;
  }

  .page-disclaimer__content {
    padding: 1rem 1.25rem;
  }

  .page-disclaimer__nav-card {
    padding: 1rem 1.25rem;
  }
}