.page-disclaimer {
  --terms-number-size: 2.8rem;
  --terms-sidebar-width: 260px;
  --terms-header-gap: var(--gap-xl);
  --terms-section-gap: var(--gap-lg);
}

.page-disclaimer .breadcrumb {
  margin-bottom: var(--gap-lg);
  font-size: var(--small);
  color: var(--text-gray);
}

.page-disclaimer .breadcrumb a {
  color: var(--primary-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.page-disclaimer .breadcrumb a:hover {
  color: var(--primary-blue-dark);
  text-decoration: underline;
}

.page-disclaimer .breadcrumb .sep {
  margin: 0 var(--gap-sm);
  color: var(--border-gray);
}

.page-disclaimer .breadcrumb [aria-current="page"] {
  color: var(--text-black);
  font-weight: var(--weight-bold);
}

/* ── 页面标题区 ── */
.page-disclaimer .terms-header {
  display: flex;
  align-items: center;
  gap: var(--gap-md);
  margin-bottom: var(--terms-header-gap);
  padding-bottom: var(--gap-lg);
  border-bottom: 2px solid var(--border-gray);
}

.page-disclaimer .terms-header-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-light);
  border-radius: var(--radius-md);
}

.page-disclaimer .header-icon-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.page-disclaimer .terms-header-text {
  flex: 1;
  min-width: 0;
}

.page-disclaimer .terms-title {
  font-family: var(--font-family);
  font-size: var(--h1);
  font-weight: var(--weight-black);
  color: var(--text-black);
  line-height: 1.15;
  margin: 0 0 var(--gap-sm) 0;
  letter-spacing: -0.02em;
}

.page-disclaimer .terms-desc {
  font-size: var(--body);
  color: var(--text-gray);
  margin: 0;
  line-height: 1.5;
  max-width: 640px;
}

/* ── 移动端侧边栏 (details) ── */
.page-disclaimer .sidebar-mobile {
  display: block;
  margin-bottom: var(--terms-header-gap);
  background: var(--bg-light);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-gray);
  overflow: hidden;
}

.page-disclaimer .sidebar-mobile-summary {
  list-style: none;
  padding: var(--gap-md) var(--gap-lg);
  font-weight: var(--weight-bold);
  font-size: var(--body);
  color: var(--primary-blue);
  cursor: pointer;
  user-select: none;
  display: flex;
  align-items: center;
  gap: var(--gap-sm);
  position: relative;
}

.page-disclaimer .sidebar-mobile-summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer .sidebar-mobile-summary::after {
  content: "";
  display: inline-block;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--primary-blue);
  border-bottom: 2px solid var(--primary-blue);
  transform: rotate(45deg);
  transition: transform var(--transition-fast);
  margin-left: auto;
  flex-shrink: 0;
}

.page-disclaimer .sidebar-mobile[open] .sidebar-mobile-summary::after {
  transform: rotate(-135deg);
}

.page-disclaimer .sidebar-mobile .sidebar-list {
  list-style: none;
  margin: 0;
  padding: 0 0 var(--gap-sm) 0;
  border-top: 1px solid var(--border-gray);
}

.page-disclaimer .sidebar-mobile .sidebar-list li {
  border-bottom: 1px solid var(--bg-white);
}

.page-disclaimer .sidebar-mobile .sidebar-list li:last-child {
  border-bottom: none;
}

.page-disclaimer .sidebar-mobile .sidebar-list a {
  display: block;
  padding: var(--gap-sm) var(--gap-lg);
  color: var(--text-black);
  text-decoration: none;
  font-size: var(--small);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.page-disclaimer .sidebar-mobile .sidebar-list a:hover {
  background: var(--bg-white);
  color: var(--primary-blue);
}

/* ── 桌面端侧边栏 ── */
.page-disclaimer .sidebar-desktop {
  display: none;
}

/* ── 主内容 ── */
.page-disclaimer .terms-content {
  flex: 1;
  min-width: 0;
}

/* ── 条款卡片 ── */
.page-disclaimer .terms-section {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: var(--gap-xl);
  margin-bottom: var(--terms-section-gap);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-gray);
  transition: box-shadow var(--transition-fast);
}

.page-disclaimer .terms-section:hover {
  box-shadow: var(--shadow-md);
}

.page-disclaimer .section-heading {
  display: flex;
  align-items: baseline;
  gap: var(--gap-md);
  margin: 0 0 var(--gap-lg) 0;
  padding-bottom: var(--gap-md);
  border-bottom: 1px solid var(--bg-light);
}

.page-disclaimer .section-number {
  font-size: var(--terms-number-size);
  font-weight: var(--weight-black);
  color: var(--primary-blue);
  line-height: 1;
  flex-shrink: 0;
  letter-spacing: -0.03em;
}

.page-disclaimer .section-label {
  font-family: var(--font-family);
  font-size: var(--h3);
  font-weight: var(--weight-bold);
  color: var(--text-black);
  line-height: 1.2;
}

.page-disclaimer .section-body {
  font-size: var(--body);
  color: var(--text-gray);
  line-height: 1.7;
}

.page-disclaimer .section-body p {
  margin: 0 0 var(--gap-md) 0;
}

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

.page-disclaimer .section-body a {
  color: var(--primary-blue);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--transition-fast);
}

.page-disclaimer .section-body a:hover {
  color: var(--primary-blue-dark);
}

/* ── 底部横条 ── */
.page-disclaimer .terms-bar {
  width: 100%;
  overflow: hidden;
  margin-top: var(--gap-xl);
  border-radius: var(--radius-md);
  background: var(--bg-light);
}

.page-disclaimer .terms-bar-img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  max-width: 1200px;
  margin: 0 auto;
}

/* ════════════════════════════════════
   桌面端 (≥768px)
   ════════════════════════════════════ */
@media (min-width: 768px) {
  .page-disclaimer .terms-header {
    margin-bottom: var(--gap-xl);
  }

  .page-disclaimer .sidebar-mobile {
    display: none;
  }

  .page-disclaimer .sidebar-desktop {
    display: block;
    width: var(--terms-sidebar-width);
    flex-shrink: 0;
    position: sticky;
    top: calc(var(--header-top-h) + var(--nav-h) + var(--scroll-h) + var(--gap-lg));
    align-self: flex-start;
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    padding: var(--gap-lg);
    border: 1px solid var(--border-gray);
    box-shadow: var(--shadow-sm);
  }

  .page-disclaimer .sidebar-title {
    font-size: var(--body);
    font-weight: var(--weight-bold);
    color: var(--text-black);
    margin: 0 0 var(--gap-md) 0;
    padding-bottom: var(--gap-sm);
    border-bottom: 2px solid var(--primary-blue);
    letter-spacing: 0.02em;
  }

  .page-disclaimer .sidebar-desktop .sidebar-list {
    list-style: none;
    margin: 0;
    padding: 0;
  }

  .page-disclaimer .sidebar-desktop .sidebar-list li {
    margin-bottom: var(--gap-sm);
  }

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

  .page-disclaimer .sidebar-desktop .sidebar-list a {
    display: block;
    padding: var(--gap-sm) var(--gap-md);
    color: var(--text-gray);
    text-decoration: none;
    font-size: var(--small);
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast), color var(--transition-fast), padding-left var(--transition-fast);
    border-left: 3px solid transparent;
  }

  .page-disclaimer .sidebar-desktop .sidebar-list a:hover {
    background: var(--bg-white);
    color: var(--primary-blue);
    padding-left: calc(var(--gap-md) + 4px);
    border-left-color: var(--primary-blue);
  }

  .page-disclaimer .terms-layout {
    display: flex;
    gap: var(--gap-xl);
    align-items: flex-start;
  }

  .page-disclaimer .terms-content {
    flex: 1;
    min-width: 0;
  }

  .page-disclaimer .terms-section {
    padding: var(--gap-xl) var(--gap-xl) var(--gap-xl) calc(var(--gap-xl) + 8px);
  }
}

/* ════════════════════════════════════
   大桌面端 (≥1024px)
   ════════════════════════════════════ */
@media (min-width: 1024px) {
  .page-disclaimer .terms-header-icon {
    width: 56px;
    height: 56px;
  }

  .page-disclaimer .terms-title {
    font-size: calc(var(--h1) + 0.4rem);
  }

  .page-disclaimer .sidebar-desktop {
    width: 280px;
    padding: var(--gap-xl);
  }

  .page-disclaimer .terms-section {
    padding: calc(var(--gap-xl) + 4px) var(--gap-xl) var(--gap-xl) calc(var(--gap-xl) + 16px);
  }
}