/* ===== 页面专属：使用说明（.page-disclaimer） ===== */
.page-disclaimer {
  --hero-min-height: 420px;
  --card-radius: var(--radius, 8px);
  --card-shadow: var(--shadow-md, 0 4px 16px rgba(0,0,0,0.1));
  --border-width: 2px;
  --version-box-bg: rgba(11, 17, 32, 0.04);
  --version-box-border: var(--c-silver, #C0C0C0);
  --accent-alpha: rgba(255, 107, 53, 0.12);
  display: block;
  width: 100%;
  background: var(--c-light, #F8FAFC);
  color: var(--c-text, #1E293B);
  font-family: var(--font-body, system-ui, sans-serif);
}

/* ---- 面包屑 ---- */
.page-disclaimer .breadcrumb {
  max-width: var(--max-w, 1200px);
  margin: 0 auto;
  padding: var(--space-md, 16px) var(--space-lg, 32px) 0;
  font-size: 0.875rem;
  color: var(--c-text, #1E293B);
  opacity: 0.7;
}

.page-disclaimer .breadcrumb a {
  color: var(--c-grad-end, #3B82F6);
  text-decoration: none;
  transition: opacity var(--transition, 0.3s);
}

.page-disclaimer .breadcrumb a:hover {
  opacity: 0.7;
  text-decoration: underline;
}

.page-disclaimer .breadcrumb .sep {
  margin: 0 var(--space-xs, 4px);
  user-select: none;
}

/* ---- 首屏框景 ---- */
.page-disclaimer .disclaimer-hero {
  position: relative;
  max-width: var(--max-w, 1200px);
  margin: var(--space-lg, 32px) auto 0;
  min-height: var(--hero-min-height, 420px);
  overflow: hidden;
  border: var(--border-width) solid var(--c-silver, #C0C0C0);
  border-radius: var(--card-radius, 8px);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--c-dark, #0B1120);
}

.page-disclaimer .disclaimer-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.page-disclaimer .disclaimer-hero__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  opacity: 0.3;
}

.page-disclaimer .disclaimer-hero__overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(135deg, rgba(11, 17, 32, 0.85) 0%, rgba(11, 17, 32, 0.65) 100%);
  pointer-events: none;
}

.page-disclaimer .disclaimer-hero__border {
  position: absolute;
  inset: 0;
  z-index: 2;
  border: var(--border-width) solid transparent;
  border-image: linear-gradient(135deg, var(--c-grad-start, #00D4AA), var(--c-grad-end, #3B82F6)) 1;
  pointer-events: none;
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  padding: var(--border-width);
}

.page-disclaimer .disclaimer-hero__content {
  position: relative;
  z-index: 3;
  text-align: center;
  padding: var(--space-xl, 64px) var(--space-lg, 32px);
  max-width: 720px;
}

.page-disclaimer .disclaimer-hero__title {
  font-family: var(--font-heading, system-ui, sans-serif);
  font-weight: var(--fw-heading, 800);
  font-size: clamp(2rem, 5vw, 3.5rem);
  color: var(--c-text-dark, #E2E8F0);
  margin: 0 0 var(--space-sm, 8px);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.page-disclaimer .disclaimer-hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--c-text-dark, #E2E8F0);
  opacity: 0.85;
  margin: 0 0 var(--space-lg, 32px);
  line-height: 1.6;
  font-weight: var(--fw-body, 400);
}

.page-disclaimer .disclaimer-hero__meta {
  display: flex;
  gap: var(--space-sm, 8px);
  justify-content: center;
  flex-wrap: wrap;
}

.page-disclaimer .disclaimer-hero__meta .tag {
  font-size: 0.8rem;
  padding: var(--space-xs, 4px) var(--space-md, 16px);
}

/* ---- 章节通用 ---- */
.page-disclaimer .disclaimer-section {
  padding: var(--space-xl, 64px) 0;
}

.page-disclaimer .disclaimer-section + .disclaimer-section {
  padding-top: 0;
}

/* ---- 卡片设计 ---- */
.page-disclaimer .disclaimer-card {
  border: var(--border-width) solid var(--c-border, rgba(192,192,192,0.3));
  border-radius: var(--card-radius, 8px);
  background: #ffffff;
  box-shadow: var(--card-shadow, 0 4px 16px rgba(0,0,0,0.1));
  padding: var(--space-lg, 32px);
  transition: box-shadow var(--transition, 0.3s), transform var(--transition, 0.3s);
}

.page-disclaimer .disclaimer-card:hover {
  box-shadow: var(--shadow-lg, 0 8px 32px rgba(0,0,0,0.12));
  transform: translateY(-2px);
}

.page-disclaimer .disclaimer-card--warning {
  border-left: 4px solid var(--c-accent, #FF6B35);
}

.page-disclaimer .disclaimer-card--dark {
  background: var(--c-dark, #0B1120);
  color: var(--c-text-dark, #E2E8F0);
  border-color: rgba(192, 192, 192, 0.2);
}

.page-disclaimer .disclaimer-card--dark .disclaimer-card__heading {
  color: var(--c-text-dark, #E2E8F0);
}

.page-disclaimer .disclaimer-card--dark .disclaimer-card__num {
  color: var(--c-grad-start, #00D4AA);
  opacity: 0.6;
}

.page-disclaimer .disclaimer-card--dark .disclaimer-card__text {
  color: var(--c-text-dark, #E2E8F0);
  opacity: 0.9;
}

.page-disclaimer .disclaimer-card--dark .disclaimer-card__code {
  background: rgba(255, 255, 255, 0.08);
  color: var(--c-grad-start, #00D4AA);
}

.page-disclaimer .disclaimer-card--dark .disclaimer-card__notice {
  border-top-color: rgba(255, 255, 255, 0.15);
}

.page-disclaimer .disclaimer-card--dark .disclaimer-card__version-box {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(192, 192, 192, 0.25);
}

.page-disclaimer .disclaimer-card--dark .disclaimer-card__version-display {
  color: var(--c-grad-start, #00D4AA);
}

.page-disclaimer .disclaimer-card--dark .disclaimer-card__version-meta {
  color: var(--c-text-dark, #E2E8F0);
  opacity: 0.7;
}

.page-disclaimer .disclaimer-card__header {
  display: flex;
  align-items: center;
  gap: var(--space-md, 16px);
  margin-bottom: var(--space-lg, 32px);
}

.page-disclaimer .disclaimer-card__num {
  font-family: var(--font-mono, monospace);
  font-weight: var(--fw-data, 500);
  font-size: 1.5rem;
  color: var(--c-grad-end, #3B82F6);
  opacity: 0.5;
  line-height: 1;
  flex-shrink: 0;
}

.page-disclaimer .disclaimer-card__heading {
  font-family: var(--font-heading, system-ui, sans-serif);
  font-weight: var(--fw-heading, 800);
  font-size: clamp(1.35rem, 2.5vw, 1.85rem);
  color: var(--c-text, #1E293B);
  margin: 0;
  line-height: 1.2;
}

.page-disclaimer .disclaimer-card__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-md, 16px);
}

.page-disclaimer .disclaimer-card__text {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--c-text, #1E293B);
  margin: 0;
}

.page-disclaimer .disclaimer-card__text strong {
  font-weight: 600;
  color: var(--c-dark, #0B1120);
}

.page-disclaimer .disclaimer-card--dark .disclaimer-card__text strong {
  color: var(--c-grad-start, #00D4AA);
}

.page-disclaimer .disclaimer-card__example {
  background: var(--version-box-bg, rgba(11, 17, 32, 0.04));
  border: 1px solid var(--c-border, rgba(192,192,192,0.3));
  border-radius: calc(var(--card-radius, 8px) - 2px);
  padding: var(--space-md, 16px) var(--space-lg, 32px);
  margin-top: var(--space-sm, 8px);
}

.page-disclaimer .disclaimer-card__label {
  display: block;
  margin-bottom: var(--space-xs, 4px);
  color: var(--c-text, #1E293B);
  opacity: 0.6;
  font-weight: 500;
}

.page-disclaimer .disclaimer-card__code {
  display: block;
  font-family: var(--font-mono, monospace);
  font-weight: var(--fw-data, 500);
  font-size: 0.875rem;
  color: var(--c-dark, #0B1120);
  background: transparent;
  padding: 0;
  line-height: 1.6;
  word-break: break-all;
}

.page-disclaimer .disclaimer-card__notice {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm, 8px);
  padding-top: var(--space-md, 16px);
  border-top: 1px solid var(--c-border, rgba(192,192,192,0.3));
  margin-top: var(--space-sm, 8px);
}

.page-disclaimer .disclaimer-card__notice .tag {
  flex-shrink: 0;
  font-size: 0.75rem;
  padding: 2px var(--space-sm, 8px);
}

.page-disclaimer .disclaimer-card__notice .text-small {
  font-size: 0.875rem;
  line-height: 1.5;
  opacity: 0.75;
}

/* ---- 版本号展示 ---- */
.page-disclaimer .disclaimer-card__version-box {
  background: var(--version-box-bg, rgba(11, 17, 32, 0.04));
  border: 1px solid var(--version-box-border, #C0C0C0);
  border-radius: calc(var(--card-radius, 8px) - 2px);
  padding: var(--space-lg, 32px);
  text-align: center;
  margin: var(--space-sm, 8px) 0;
}

.page-disclaimer .disclaimer-card__version-label {
  display: block;
  margin-bottom: var(--space-sm, 8px);
  color: var(--c-text, #1E293B);
  opacity: 0.5;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.75rem;
}

.page-disclaimer .disclaimer-card--dark .disclaimer-card__version-label {
  color: var(--c-text-dark, #E2E8F0);
  opacity: 0.6;
}

.page-disclaimer .disclaimer-card__version-display {
  font-family: var(--font-mono, monospace);
  font-weight: var(--fw-data, 500);
  font-size: clamp(1.4rem, 3vw, 2rem);
  color: var(--c-dark, #0B1120);
  line-height: 1.3;
  letter-spacing: -0.02em;
}

.page-disclaimer .disclaimer-card__version-main {
  color: var(--c-grad-start, #00D4AA);
}

.page-disclaimer .disclaimer-card__version-minor {
  color: var(--c-grad-end, #3B82F6);
}

.page-disclaimer .disclaimer-card__version-patch {
  color: var(--c-accent, #FF6B35);
}

.page-disclaimer .disclaimer-card__version-sep {
  color: var(--c-silver, #C0C0C0);
  margin: 0 0.05em;
}

.page-disclaimer .disclaimer-card__version-meta {
  font-size: 0.65em;
  color: var(--c-text, #1E293B);
  opacity: 0.6;
  letter-spacing: 0;
}

.page-disclaimer .disclaimer-card--dark .disclaimer-card__version-meta {
  color: var(--c-text-dark, #E2E8F0);
  opacity: 0.6;
}

/* ---- 底部链接区 ---- */
.page-disclaimer .disclaimer-links {
  padding: var(--space-xl, 64px) 0 var(--space-2xl, 96px);
}

.page-disclaimer .disclaimer-links__inner {
  text-align: center;
}

.page-disclaimer .disclaimer-links__items {
  display: flex;
  gap: var(--space-md, 16px);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-lg, 32px);
}

.page-disclaimer .disclaimer-links__btn {
  min-width: 180px;
  padding: var(--space-sm, 8px) var(--space-lg, 32px);
  font-size: 1rem;
  border-color: var(--c-silver, #C0C0C0);
  color: var(--c-text, #1E293B);
  background: transparent;
  transition: background var(--transition, 0.3s), color var(--transition, 0.3s), border-color var(--transition, 0.3s);
}

.page-disclaimer .disclaimer-links__btn:hover {
  background: linear-gradient(135deg, var(--c-grad-start, #00D4AA), var(--c-grad-end, #3B82F6));
  color: #ffffff;
  border-color: transparent;
}

.page-disclaimer .disclaimer-links__note {
  color: var(--c-text, #1E293B);
  opacity: 0.6;
  margin: 0;
  line-height: 1.6;
}

.page-disclaimer .disclaimer-links__note strong {
  font-weight: 600;
  color: var(--c-dark, #0B1120);
}

/* ---- 响应式: 移动端优先  ---- */
@media (max-width: 639px) {
  .page-disclaimer .disclaimer-hero {
    min-height: 300px;
    margin-left: var(--space-sm, 8px);
    margin-right: var(--space-sm, 8px);
    border-width: 1px;
  }

  .page-disclaimer .disclaimer-hero__content {
    padding: var(--space-lg, 32px) var(--space-md, 16px);
  }

  .page-disclaimer .disclaimer-hero__title {
    font-size: 1.75rem;
  }

  .page-disclaimer .disclaimer-hero__subtitle {
    font-size: 0.95rem;
  }

  .page-disclaimer .disclaimer-section {
    padding: var(--space-lg, 32px) 0;
  }

  .page-disclaimer .disclaimer-card {
    padding: var(--space-md, 16px);
    border-radius: calc(var(--card-radius, 8px) - 2px);
  }

  .page-disclaimer .disclaimer-card__header {
    margin-bottom: var(--space-md, 16px);
    gap: var(--space-sm, 8px);
  }

  .page-disclaimer .disclaimer-card__num {
    font-size: 1.1rem;
  }

  .page-disclaimer .disclaimer-card__heading {
    font-size: 1.2rem;
  }

  .page-disclaimer .disclaimer-card__text {
    font-size: 0.925rem;
  }

  .page-disclaimer .disclaimer-card__code {
    font-size: 0.775rem;
  }

  .page-disclaimer .disclaimer-card__example {
    padding: var(--space-sm, 8px) var(--space-md, 16px);
  }

  .page-disclaimer .disclaimer-card__version-box {
    padding: var(--space-md, 16px);
  }

  .page-disclaimer .disclaimer-card__version-display {
    font-size: 1.1rem;
    word-break: break-all;
  }

  .page-disclaimer .disclaimer-links__btn {
    min-width: 140px;
    font-size: 0.9rem;
    width: 100%;
    max-width: 260px;
  }

  .page-disclaimer .disclaimer-links__items {
    flex-direction: column;
    align-items: center;
  }

  .page-disclaimer .breadcrumb {
    padding-left: var(--space-md, 16px);
    padding-right: var(--space-md, 16px);
    font-size: 0.8rem;
  }
}

@media (min-width: 640px) and (max-width: 1023px) {
  .page-disclaimer .disclaimer-hero {
    min-height: 360px;
    margin-left: var(--space-lg, 32px);
    margin-right: var(--space-lg, 32px);
  }

  .page-disclaimer .disclaimer-card {
    padding: var(--space-lg, 32px) var(--space-xl, 64px);
  }

  .page-disclaimer .disclaimer-card__version-box {
    padding: var(--space-lg, 32px) var(--space-xl, 64px);
  }
}

@media (min-width: 1024px) {
  .page-disclaimer .disclaimer-hero {
    min-height: var(--hero-min-height, 420px);
  }

  .page-disclaimer .disclaimer-card {
    padding: var(--space-xl, 64px) var(--space-2xl, 96px);
  }

  .page-disclaimer .disclaimer-card__version-box {
    padding: var(--space-xl, 64px) var(--space-2xl, 96px);
  }

  .page-disclaimer .disclaimer-card__heading {
    font-size: 1.85rem;
  }

  .page-disclaimer .disclaimer-card__text {
    font-size: 1.05rem;
    max-width: 720px;
  }

  .page-disclaimer .disclaimer-card__code {
    font-size: 0.95rem;
  }

  .page-disclaimer .disclaimer-card__version-display {
    font-size: 2rem;
  }

  .page-disclaimer .breadcrumb {
    padding-left: var(--space-lg, 32px);
    padding-right: var(--space-lg, 32px);
  }
}