/* ===== 使用说明页面专属样式 ===== */
.page-disclaimer {
  --disclaimer-green: #2ECC71;
  --disclaimer-orange: #E67E22;
  --disclaimer-blue: #2980B9;
  --disclaimer-bg: #1A1A1A;
  --disclaimer-card: #2C2C2C;
  --disclaimer-text: #FFFFFF;
  --disclaimer-text-secondary: #B0B0B0;
  --disclaimer-border: #404040;
  --disclaimer-divider: #404040;

  background-color: var(--disclaimer-bg);
  color: var(--disclaimer-text);
  padding: 2rem 0 4rem;
  position: relative;
}

/* 面包屑 */
.page-disclaimer__breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--disclaimer-text-secondary);
  margin-bottom: 1.5rem;
}
.page-disclaimer__breadcrumb a {
  color: var(--disclaimer-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.page-disclaimer__breadcrumb a:hover {
  color: var(--main-green);
}
.page-disclaimer__breadcrumb-sep {
  margin: 0 0.25rem;
}

/* 首屏索引 */
.page-disclaimer__index {
  margin-bottom: 2rem;
}
.page-disclaimer__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-style: italic;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin: 0 0 0.75rem;
  color: var(--main-green);
}
.page-disclaimer__intro {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--disclaimer-text-secondary);
  max-width: 640px;
  margin-bottom: 1.5rem;
  line-height: 1.6;
}
.page-disclaimer__index-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}
@media (min-width: 600px) {
  .page-disclaimer__index-list {
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
  }
}
.page-disclaimer__index-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--disclaimer-card);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--disclaimer-border);
  transition: border-color var(--transition-fast), background var(--transition-fast);
}
.page-disclaimer__index-item:hover {
  border-color: var(--main-green);
  background: var(--bg-card-hover);
}
.page-disclaimer__index-icon {
  width: 24px;
  height: 24px;
  color: var(--main-green);
  flex-shrink: 0;
}
.page-disclaimer__index-link {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  color: var(--disclaimer-text);
  text-decoration: none;
}
.page-disclaimer__index-link:hover {
  color: var(--main-green);
}

/* 分割线 */
.page-disclaimer__divider {
  border: none;
  height: 1px;
  background: var(--disclaimer-divider);
  margin: 2.5rem 0;
}

/* 章节 */
.page-disclaimer__section {
  scroll-margin-top: calc(var(--nav-height) + 1.5rem);
}
.page-disclaimer__section-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.page-disclaimer__section-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
}
.page-disclaimer__section .heading--2 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-style: italic;
  font-size: clamp(1.25rem, 3vw, 1.75rem);
  color: var(--disclaimer-text);
  margin: 0;
}

/* 条款列表 */
.page-disclaimer__clause-list {
  list-style: none;
  padding: 0;
  margin: 0;
  counter-reset: clause;
}
.page-disclaimer__clause {
  display: flex;
  gap: 0.75rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--disclaimer-border);
}
.page-disclaimer__clause:last-child {
  border-bottom: none;
}
.page-disclaimer__clause-num {
  font-family: var(--font-data);
  font-weight: 700;
  font-size: 1rem;
  color: var(--main-green);
  min-width: 2rem;
  text-align: right;
  flex-shrink: 0;
}
.page-disclaimer__clause p {
  margin: 0;
  font-family: var(--font-body);
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--disclaimer-text-secondary);
}
.page-disclaimer__clause a {
  color: var(--disclaimer-blue);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.page-disclaimer__clause a:hover {
  color: var(--main-green);
}

/* 底部背景图 */
.page-disclaimer__bottom-image {
  margin-top: 3rem;
  border-radius: var(--radius-md);
  overflow: hidden;
  opacity: 0.3;
  position: relative;
  z-index: 0;
}
.page-disclaimer__bg-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* 移动端窄屏调整 */
@media (max-width: 599px) {
  .page-disclaimer {
    padding: 1rem 0 3rem;
  }
  .page-disclaimer__section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }
  .page-disclaimer__section-icon {
    width: 36px;
    height: 36px;
  }
  .page-disclaimer__clause {
    padding: 0.75rem 0;
  }
  .page-disclaimer__bottom-image {
    margin-top: 2rem;
  }
}