/* ===== page-disclaimer 使用说明页面专属样式 ===== */
.page-disclaimer {
  --pd-clr-bg: var(--clr-primary-deep-blue, #0B1A33);
  --pd-clr-surface: var(--clr-surface-dark, #1A2A44);
  --pd-clr-border: var(--clr-border-subtle, #2E4A6E);
  --pd-clr-gold: var(--clr-accent-gold, #F5A623);
  --pd-clr-text: var(--clr-text-primary, #FFFFFF);
  --pd-clr-text-secondary: var(--clr-text-secondary, #B0C4DE);
  --pd-clr-accent: var(--clr-accent-orange-red, #FF4B2B);
  --pd-font-heading: var(--font-heading, 'Source Han Sans CN Bold', 'Microsoft YaHei', system-ui, sans-serif);
  --pd-font-body: var(--font-body, 'Noto Sans SC Regular', 'PingFang SC', system-ui, sans-serif);
  --pd-font-mono: var(--font-mono, 'JetBrains Mono', 'Cascadia Code', monospace);
  --pd-radius: var(--radius-lg, 16px);
  --pd-radius-pill: var(--radius-pill, 9999px);
  --pd-transition: var(--transition-base, 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94));
  --pd-container-max: 840px;
  --pd-section-gap: 2.5rem;
  --pd-title-underline: 4px;

  background-color: var(--pd-clr-bg);
  color: var(--pd-clr-text);
  font-family: var(--pd-font-body);
  line-height: 1.75;
  padding-bottom: 3rem;
}

/* 顶部装饰图 */
.page-disclaimer__hero {
  width: 100%;
  height: 100px;
  overflow: hidden;
  background: linear-gradient(90deg, var(--pd-clr-surface), var(--pd-clr-bg), var(--pd-clr-surface));
  border-bottom: 2px solid var(--pd-clr-gold);
}

.page-disclaimer__hero-img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  opacity: 0.7;
}

/* 容器 */
.page-disclaimer__container {
  max-width: var(--pd-container-max);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* 面包屑 */
.page-disclaimer__breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1.25rem 0 0.5rem;
  font-family: var(--pd-font-mono);
  font-size: 0.8125rem;
  color: var(--pd-clr-text-secondary);
  letter-spacing: 0.02em;
}

.page-disclaimer__breadcrumb-link {
  color: var(--pd-clr-text-secondary);
  text-decoration: none;
  transition: color var(--pd-transition);
}

.page-disclaimer__breadcrumb-link:hover,
.page-disclaimer__breadcrumb-link:focus-visible {
  color: var(--pd-clr-gold);
  outline: 2px solid var(--pd-clr-gold);
  outline-offset: 2px;
}

.page-disclaimer__breadcrumb-sep {
  color: var(--pd-clr-border);
  font-size: 0.8125rem;
}

.page-disclaimer__breadcrumb-current {
  color: var(--pd-clr-gold);
  font-weight: 700;
}

/* 页面标题 */
.page-disclaimer__header {
  padding: 2rem 0 2rem;
  border-bottom: 2px solid var(--pd-clr-border);
  margin-bottom: var(--pd-section-gap);
}

.page-disclaimer__title {
  font-family: var(--pd-font-mono);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--pd-clr-text);
  margin: 0 0 0.5rem;
  line-height: 1.2;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  position: relative;
  display: inline-block;
}

.page-disclaimer__title::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 64px;
  height: var(--pd-title-underline);
  background: var(--pd-clr-gold);
  border-radius: var(--pd-radius-pill);
}

.page-disclaimer__subtitle {
  font-family: var(--pd-font-heading);
  font-size: 1.125rem;
  color: var(--pd-clr-text-secondary);
  margin: 1rem 0 0.25rem;
  line-height: 1.4;
}

.page-disclaimer__intro {
  font-size: 1rem;
  color: var(--pd-clr-text-secondary);
  margin: 0.75rem 0 0;
  padding: 0.75rem 1rem;
  background: rgba(255, 75, 43, 0.06);
  border-left: 3px solid var(--pd-clr-accent);
  border-radius: 0 var(--pd-radius) var(--pd-radius) 0;
  line-height: 1.6;
}

/* 章节 */
.page-disclaimer__section {
  margin-bottom: var(--pd-section-gap);
  padding: 1.5rem 1.25rem;
  background: var(--pd-clr-surface);
  border-radius: var(--pd-radius);
  border: 1px solid var(--pd-clr-border);
  transition: border-color var(--pd-transition);
}

.page-disclaimer__section:hover {
  border-color: rgba(245, 166, 35, 0.3);
}

.page-disclaimer__section-title {
  font-family: var(--pd-font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--pd-clr-gold);
  margin: 0 0 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--pd-clr-border);
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.page-disclaimer__section-title::before {
  content: '//';
  font-family: var(--pd-font-mono);
  color: var(--pd-clr-accent);
  font-size: 1.125rem;
  opacity: 0.7;
}

.page-disclaimer__section-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--pd-clr-border), transparent);
}

.page-disclaimer__section-body {
  font-size: 1rem;
  color: var(--pd-clr-text);
  line-height: 1.8;
}

.page-disclaimer__section-body p {
  margin: 0 0 0.875rem;
}

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

/* 列表 */
.page-disclaimer__list {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.page-disclaimer__list-item {
  position: relative;
  padding-left: 1.5rem;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--pd-clr-text-secondary);
}

.page-disclaimer__list-item::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--pd-clr-gold);
  font-weight: 700;
  font-size: 1.1rem;
}

/* 底部备案与链接 */
.page-disclaimer__footer {
  margin-top: 2.5rem;
  padding: 1.5rem 1.25rem;
  background: var(--pd-clr-surface);
  border-radius: var(--pd-radius);
  border: 2px solid var(--pd-clr-gold);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.page-disclaimer__footer-icp {
  font-family: var(--pd-font-mono);
  font-size: 0.9375rem;
  color: var(--pd-clr-gold);
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 0.25rem 1rem;
  border: 1px solid rgba(245, 166, 35, 0.3);
  border-radius: var(--pd-radius-pill);
  background: rgba(245, 166, 35, 0.06);
}

.page-disclaimer__footer-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.page-disclaimer__footer-link {
  font-family: var(--pd-font-heading);
  font-size: 0.9375rem;
  color: var(--pd-clr-text-secondary);
  text-decoration: none;
  padding: 0.2rem 0.4rem;
  transition: color var(--pd-transition), background var(--pd-transition);
  border-radius: 4px;
}

.page-disclaimer__footer-link:hover,
.page-disclaimer__footer-link:focus-visible {
  color: var(--pd-clr-gold);
  background: rgba(245, 166, 35, 0.08);
  outline: 2px solid var(--pd-clr-gold);
  outline-offset: 2px;
}

.page-disclaimer__footer-sep {
  color: var(--pd-clr-border);
  font-size: 0.875rem;
}

.page-disclaimer__footer-note {
  font-size: 0.875rem;
  color: var(--pd-clr-text-secondary);
  margin: 0;
  line-height: 1.5;
  font-style: italic;
}

/* ===== 移动端优先 (默认即为窄屏优化) ===== */
/* 窄屏时缩小标题、调整间距 */
@media (max-width: 639px) {
  .page-disclaimer__container {
    padding: 0 1rem;
  }

  .page-disclaimer__title {
    font-size: 1.75rem;
  }

  .page-disclaimer__title::after {
    width: 48px;
    height: 3px;
    bottom: -4px;
  }

  .page-disclaimer__subtitle {
    font-size: 1rem;
  }

  .page-disclaimer__intro {
    font-size: 0.9375rem;
    padding: 0.625rem 0.875rem;
  }

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

  .page-disclaimer__section-title {
    font-size: 1.25rem;
  }

  .page-disclaimer__section-body {
    font-size: 0.9375rem;
  }

  .page-disclaimer__list-item {
    font-size: 0.875rem;
    padding-left: 1.25rem;
  }

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

  .page-disclaimer__footer-icp {
    font-size: 0.8125rem;
  }

  .page-disclaimer__footer-link {
    font-size: 0.875rem;
  }
}

/* 桌面端：增加内边距与空间感 */
@media (min-width: 768px) {
  .page-disclaimer {
    padding-bottom: 4rem;
  }

  .page-disclaimer__container {
    padding: 0 2rem;
  }

  .page-disclaimer__breadcrumb {
    padding-top: 1.75rem;
    font-size: 0.875rem;
  }

  .page-disclaimer__header {
    padding: 2.5rem 0 2rem;
  }

  .page-disclaimer__title {
    font-size: 3rem;
  }

  .page-disclaimer__subtitle {
    font-size: 1.25rem;
  }

  .page-disclaimer__intro {
    font-size: 1.0625rem;
    padding: 1rem 1.25rem;
  }

  .page-disclaimer__section {
    padding: 2rem 2rem;
  }

  .page-disclaimer__section-title {
    font-size: 1.625rem;
  }

  .page-disclaimer__section-body {
    font-size: 1.0625rem;
  }

  .page-disclaimer__list {
    gap: 0.75rem;
  }

  .page-disclaimer__list-item {
    font-size: 1rem;
    padding-left: 1.75rem;
  }

  .page-disclaimer__footer {
    padding: 2rem 2rem;
    gap: 1rem;
  }
}

/* 大屏优化 */
@media (min-width: 1024px) {
  .page-disclaimer__container {
    padding: 0 0.5rem;
  }

  .page-disclaimer__section {
    padding: 2.25rem 2.5rem;
  }

  .page-disclaimer__footer {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.25rem;
  }
}

/* 减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  .page-disclaimer__section,
  .page-disclaimer__breadcrumb-link,
  .page-disclaimer__footer-link {
    transition: none;
  }
}