/* ===== 页面专属：使用说明 (page-disclaimer) ===== */
.page-disclaimer {
  --disclaimer-accent: var(--color-galaxy-purple, #6a4e9c);
  --disclaimer-accent-rgb: var(--color-galaxy-purple-rgb, 106, 78, 156);
  --disclaimer-gold: var(--color-star-gold, #f5d76e);
  --disclaimer-text: var(--color-cold-white, #e0e5ec);
  --disclaimer-muted: var(--color-text-muted, #9aa8b9);
  --disclaimer-card: var(--color-card-bg, #1b2a3f);
  --disclaimer-border: var(--color-border, #2a3d5c);
  --disclaimer-gap: 2rem;
  --disclaimer-section-gap: 3.5rem;
  position: relative;
  overflow-x: hidden;
}

/* ===== Hero 区域 ===== */
.disclaimer-hero {
  position: relative;
  padding: 3rem 0 2.5rem;
  margin-bottom: 2.5rem;
}

.disclaimer-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  opacity: 0.08;
  pointer-events: none;
}

.disclaimer-hero__bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.disclaimer-hero__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.75rem;
}

.disclaimer-hero__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm, 8px);
  background: var(--disclaimer-card);
  border: 1px solid var(--disclaimer-border);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
  margin-bottom: 0.25rem;
}

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

.disclaimer-hero__title {
  font-family: var(--font-heading);
  font-size: var(--heading-size, clamp(2rem, 5vw, 4rem));
  font-weight: 700;
  color: var(--color-bright-white, #ffffff);
  letter-spacing: 0.02em;
  line-height: 1.1;
  margin: 0;
}

.disclaimer-hero__sub {
  font-family: var(--font-body);
  font-size: var(--body-size, 1rem);
  line-height: 1.7;
  color: var(--disclaimer-muted);
  max-width: 640px;
  margin: 0;
}

/* ===== 面包屑 ===== */
.page-disclaimer .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.375rem 0.5rem;
  font-size: var(--caption-size, 0.875rem);
  margin-bottom: 1.25rem;
  color: var(--disclaimer-muted);
}

.page-disclaimer .breadcrumb__link {
  color: var(--disclaimer-accent);
  text-decoration: none;
  transition: color var(--transition-smooth, 0.3s ease);
}

.page-disclaimer .breadcrumb__link:hover,
.page-disclaimer .breadcrumb__link:focus-visible {
  color: var(--disclaimer-gold);
  text-decoration: underline;
}

.page-disclaimer .breadcrumb__sep {
  color: var(--disclaimer-border);
  user-select: none;
}

.page-disclaimer .breadcrumb__current {
  color: var(--disclaimer-text);
  font-weight: 500;
}

/* ===== 主体容器 ===== */
.disclaimer-body {
  position: relative;
  z-index: 1;
  padding-bottom: 3rem;
}

/* ===== 章节 ===== */
.disclaimer-section {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: var(--disclaimer-section-gap);
}

.disclaimer-section__header {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  border-bottom: 1px solid var(--disclaimer-border);
  padding-bottom: 0.75rem;
}

.disclaimer-section__number {
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 3vw, 2rem);
  font-weight: 300;
  color: var(--disclaimer-accent);
  opacity: 0.6;
  line-height: 1;
  letter-spacing: 0.05em;
}

.disclaimer-section__title {
  font-family: var(--font-heading);
  font-size: clamp(1.35rem, 3.5vw, 2rem);
  font-weight: 700;
  color: var(--color-bright-white, #ffffff);
  margin: 0;
  letter-spacing: 0.01em;
}

.disclaimer-section__content {
  padding-left: 0;
}

/* ===== 列表 ===== */
.disclaimer-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.disclaimer-list__item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1rem 1.25rem;
  background: rgba(var(--disclaimer-accent-rgb), 0.04);
  border-radius: var(--radius-sm, 8px);
  border: 1px solid transparent;
  transition: border-color var(--transition-smooth, 0.3s ease),
              background var(--transition-smooth, 0.3s ease);
}

.disclaimer-list__item:hover {
  border-color: rgba(var(--disclaimer-accent-rgb), 0.2);
  background: rgba(var(--disclaimer-accent-rgb), 0.07);
}

.disclaimer-list__marker {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--disclaimer-gold);
  background: rgba(var(--disclaimer-accent-rgb), 0.12);
  border-radius: 50%;
  margin-top: 0.125rem;
  user-select: none;
}

.disclaimer-list__text {
  font-family: var(--font-body);
  font-size: var(--body-size, 1rem);
  line-height: 1.7;
  color: var(--disclaimer-text);
  flex: 1;
  min-width: 0;
}

.disclaimer-list__text strong {
  color: var(--color-bright-white, #ffffff);
  font-weight: 600;
}

/* ===== 分隔线 ===== */
.disclaimer-divider {
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--disclaimer-border) 20%,
    var(--disclaimer-border) 80%,
    transparent 100%
  );
  margin: 0 0 var(--disclaimer-section-gap);
}

/* ===== 页脚注释 ===== */
.disclaimer-footer-note {
  margin-top: 2rem;
  padding: 1.5rem 1.25rem;
  background: var(--disclaimer-card);
  border-radius: var(--radius-md, 16px);
  border: 1px solid var(--disclaimer-border);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.disclaimer-footer-note__text {
  font-family: var(--font-body);
  font-size: var(--caption-size, 0.875rem);
  line-height: 1.7;
  color: var(--disclaimer-muted);
  margin: 0;
}

.disclaimer-footer-note__link {
  color: var(--disclaimer-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--transition-smooth, 0.3s ease);
}

.disclaimer-footer-note__link:hover,
.disclaimer-footer-note__link:focus-visible {
  color: var(--disclaimer-gold);
}

.disclaimer-footer-note__meta {
  font-family: var(--font-caption);
  font-size: 0.75rem;
  color: var(--disclaimer-muted);
  opacity: 0.7;
  margin: 0;
}

/* ===== 响应式 ===== */

/* 移动端优先（窄屏） */
@media (max-width: 639px) {
  .disclaimer-hero {
    padding: 2rem 0 1.5rem;
    margin-bottom: 1.5rem;
  }

  .disclaimer-hero__icon {
    width: 40px;
    height: 40px;
    padding: 0.375rem;
  }

  .disclaimer-hero__sub {
    font-size: 0.925rem;
  }

  .disclaimer-section {
    gap: 1rem;
    margin-bottom: 2.5rem;
  }

  .disclaimer-section__header {
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .disclaimer-section__content {
    padding-left: 0;
  }

  .disclaimer-list__item {
    flex-direction: column;
    gap: 0.625rem;
    padding: 0.875rem 1rem;
  }

  .disclaimer-list__marker {
    width: 1.625rem;
    height: 1.625rem;
    font-size: 0.75rem;
    margin-top: 0;
  }

  .disclaimer-list__text {
    font-size: 0.925rem;
  }

  .disclaimer-divider {
    margin-bottom: 2.5rem;
  }

  .disclaimer-footer-note {
    padding: 1.125rem 1rem;
  }
}

/* 平板及以上 */
@media (min-width: 640px) {
  .disclaimer-hero {
    padding: 4rem 0 3rem;
    margin-bottom: 3rem;
  }

  .disclaimer-hero__icon {
    width: 56px;
    height: 56px;
    padding: 0.625rem;
  }

  .disclaimer-section__content {
    padding-left: 0.5rem;
  }

  .disclaimer-list__item {
    padding: 1.125rem 1.5rem;
  }

  .disclaimer-footer-note {
    padding: 1.75rem 2rem;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  .disclaimer-footer-note__meta {
    flex-shrink: 0;
  }
}

/* 桌面宽屏 */
@media (min-width: 1024px) {
  .disclaimer-hero__inner {
    padding-right: 4rem;
  }

  .disclaimer-section {
    display: grid;
    grid-template-columns: 1fr 3fr;
    gap: 2rem 3rem;
  }

  .disclaimer-section__header {
    flex-direction: column;
    align-items: flex-start;
    border-bottom: none;
    padding-bottom: 0;
    gap: 0.375rem;
    position: sticky;
    top: calc(var(--nav-height, 64px) + 1.5rem);
    align-self: start;
  }

  .disclaimer-section__number {
    font-size: clamp(1.5rem, 2.5vw, 2.5rem);
  }

  .disclaimer-section__title {
    font-size: clamp(1.5rem, 2.5vw, 2.25rem);
  }

  .disclaimer-section__content {
    padding-left: 0;
    border-left: 1px solid rgba(var(--disclaimer-accent-rgb), 0.15);
    padding-left: 2.5rem;
  }

  .disclaimer-divider {
    display: none;
  }

  .disclaimer-list__item {
    padding: 1.25rem 1.75rem;
  }
}