/* ========== 使用条款页面专属样式 ========== */
.page-disclaimer {
  --content-inner-width: min(var(--content-max, 1200px), 100% - calc(var(--content-padding, 1rem) * 2));
  --disclaimer-number-size: clamp(3rem, 6vw, 5rem);
  --disclaimer-heading-size: clamp(1.8rem, 3vw, 2.6rem);
  --disclaimer-text-size: clamp(1rem, 1.4vw, 1.125rem);
  --disclaimer-gap: clamp(2rem, 4vw, 4rem);
  --highlight-bg: #D32F2F;
  --highlight-text: #FFFFFF;
  --section-spacing: clamp(2.5rem, 5vw, 5rem);
}

/* 移动端优先布局 */
.page-disclaimer {
  display: flex;
  flex-direction: column;
  gap: var(--section-spacing);
  max-width: var(--content-inner-width);
  margin: 0 auto;
  padding: var(--content-padding) var(--content-padding) 4rem;
  position: relative;
}

/* 面包屑 */
.page-disclaimer .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
}

.page-disclaimer .breadcrumb-link {
  color: var(--color-accent, #D32F2F);
  text-decoration: none;
  font-weight: 500;
}

.page-disclaimer .breadcrumb-link:hover,
.page-disclaimer .breadcrumb-link:focus-visible {
  text-decoration: underline;
  outline: 2px solid var(--color-accent, #D32F2F);
  outline-offset: 2px;
}

.page-disclaimer .breadcrumb-sep {
  color: var(--color-text, #3E2723);
  opacity: 0.5;
}

.page-disclaimer .breadcrumb-current {
  color: var(--color-text, #3E2723);
  font-weight: 500;
}

/* 顶部装饰图 */
.page-disclaimer .disclaimer-banner {
  display: block;
  width: 100%;
  max-width: 600px;
  height: auto;
  margin: 0 auto 1.5rem;
  border-radius: 4px;
  object-fit: cover;
  background: linear-gradient(135deg, var(--color-blue, #1976D2) 0%, var(--color-gold, #FFD54F) 100%);
  padding: 2px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

/* 主标题 */
.page-disclaimer .disclaimer-title {
  font-family: var(--font-heading, 'Montserrat', 'Exo 2', sans-serif);
  font-size: clamp(2.2rem, 5vw, 3.2rem);
  font-weight: 800;
  color: var(--color-accent, #D32F2F);
  margin: 0;
  line-height: 1.1;
  letter-spacing: -0.02em;
  text-shadow: 0 2px 8px rgba(211, 47, 47, 0.15);
}

.page-disclaimer .disclaimer-subtitle {
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  color: var(--color-text, #3E2723);
  margin: 0.5rem 0 0;
  opacity: 0.85;
  max-width: 65ch;
}

/* 每个条款区块 */
.page-disclaimer .disclaimer-section {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 0;
}

.page-disclaimer .section-number {
  font-family: var(--font-heading, 'Montserrat', 'Exo 2', sans-serif);
  font-size: var(--disclaimer-number-size);
  font-weight: 900;
  line-height: 1;
  color: var(--color-accent, #D32F2F);
  opacity: 0.12;
  position: absolute;
  top: -0.3em;
  left: -0.05em;
  pointer-events: none;
  user-select: none;
}

.page-disclaimer .disclaimer-heading {
  font-family: var(--font-heading, 'Montserrat', 'Exo 2', sans-serif);
  font-size: var(--disclaimer-heading-size);
  font-weight: 700;
  color: var(--color-text, #3E2723);
  margin: 0 0 0.25rem;
  padding-left: 1rem;
  border-left: 4px solid var(--color-accent, #D32F2F);
}

.page-disclaimer .disclaimer-text {
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: var(--disclaimer-text-size);
  line-height: 1.75;
  color: var(--color-text, #3E2723);
  max-width: 72ch;
  margin: 0;
}

/* 高亮框 —— 重要段落用红橙背景块突出 */
.page-disclaimer .highlight-box {
  background-color: var(--color-accent, #D32F2F);
  color: var(--highlight-text, #FFFFFF);
  padding: 1.25rem 1.5rem;
  border-radius: 0;
  clip-path: polygon(0 0, 100% 0, calc(100% - 12px) 100%, 0% 100%);
  margin: 0.5rem 0;
}

.page-disclaimer .highlight-box .disclaimer-text {
  color: inherit;
  font-weight: 500;
}

.page-disclaimer .disclaimer-emphasis {
  color: inherit;
}

/* 联系列表 */
.page-disclaimer .contact-list {
  list-style: none;
  padding: 0;
  margin: 0.75rem 0 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.page-disclaimer .contact-item {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.page-disclaimer .contact-label {
  font-family: var(--font-heading, 'Montserrat', 'Exo 2', sans-serif);
  font-weight: 600;
  font-size: var(--disclaimer-text-size);
  color: var(--color-text, #3E2723);
  min-width: 4rem;
}

.page-disclaimer .contact-link {
  color: var(--color-accent, #D32F2F);
  text-decoration: underline;
  text-underline-offset: 2px;
  word-break: break-all;
}

.page-disclaimer .contact-link:hover {
  color: var(--color-accent-dark, #B71C1C);
}

.page-disclaimer .contact-note {
  font-size: 0.9rem;
  opacity: 0.75;
  margin-top: 0.75rem;
}

/* 内部链接按钮组 */
.page-disclaimer .disclaimer-internal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.page-disclaimer .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading, 'Montserrat', 'Exo 2', sans-serif);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  padding: 0.5rem 1.25rem;
  cursor: pointer;
  transition: transform var(--transition-default, 0.3s ease), box-shadow var(--transition-default);
  clip-path: polygon(0 0, 100% 0, calc(100% - 8px) 100%, 0% 100%);
}

.page-disclaimer .btn-sm {
  font-size: 0.85rem;
  padding: 0.4rem 1rem;
}

.page-disclaimer .btn-primary {
  background-color: var(--color-accent, #D32F2F);
  color: #FFFFFF;
  border: 2px solid var(--color-accent, #D32F2F);
}

.page-disclaimer .btn-primary:hover,
.page-disclaimer .btn-primary:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(211, 47, 47, 0.35);
}

.page-disclaimer .btn-outline {
  background-color: transparent;
  color: var(--color-accent, #D32F2F);
  border: 2px solid var(--color-accent, #D32F2F);
}

.page-disclaimer .btn-outline:hover,
.page-disclaimer .btn-outline:focus-visible {
  background-color: var(--color-accent, #D32F2F);
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(211, 47, 47, 0.25);
}

.page-disclaimer .btn:focus-visible {
  outline: 3px solid var(--color-gold, #FFD54F);
  outline-offset: 2px;
}

/* 返回顶部按钮 */
.page-disclaimer .back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--color-accent, #D32F2F);
  color: #FFFFFF;
  border: 2px solid transparent;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity var(--transition-default, 0.3s ease), visibility var(--transition-default), transform var(--transition-default), background-color var(--transition-default);
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
}

.page-disclaimer .back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.page-disclaimer .back-to-top:hover,
.page-disclaimer .back-to-top:focus-visible {
  background-color: var(--color-accent-dark, #B71C1C);
  outline: 3px solid var(--color-gold, #FFD54F);
  outline-offset: 2px;
}

/* 桌面端媒体查询：更清晰的章节交替与编号定位 */
@media (min-width: 768px) {
  .page-disclaimer {
    padding: var(--content-padding) var(--content-padding) 6rem;
    gap: var(--disclaimer-gap);
  }

  .page-disclaimer .disclaimer-section {
    padding-left: 4rem;
  }

  .page-disclaimer .section-number {
    opacity: 0.2;
    top: -0.2em;
    left: -0.25em;
  }

  .page-disclaimer .disclaimer-heading {
    padding-left: 1.5rem;
  }

  .page-disclaimer .highlight-box {
    padding: 1.75rem 2.5rem;
    clip-path: polygon(0 0, 100% 0, calc(100% - 20px) 100%, 0% 100%);
    margin: 1rem 0;
  }

  .page-disclaimer .contact-list {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.75rem;
  }

  .page-disclaimer .contact-item {
    display: contents;
  }

  .page-disclaimer .contact-label {
    text-align: right;
    min-width: 6rem;
  }

  .page-disclaimer .disclaimer-internal-links {
    gap: 1rem;
    margin-top: 2rem;
  }

  .page-disclaimer .back-to-top {
    bottom: 3rem;
    right: 3rem;
    width: 52px;
    height: 52px;
  }
}

/* 超宽桌面：限制最大宽度并居中 */
@media (min-width: 1200px) {
  .page-disclaimer {
    max-width: var(--content-inner-width);
    margin: 0 auto;
  }

  .page-disclaimer .disclaimer-section {
    padding-left: 5rem;
  }

  .page-disclaimer .disclaimer-banner {
    max-width: 480px;
  }
}