/* ===== 页面专属: 使用说明与免责声明 ===== */
.page-disclaimer {
  --pd-color-accent: var(--color-red, #E63946);
  --pd-color-accent-alt: var(--color-green, #2A9D8F);
  --pd-color-bg-card: var(--color-light, #F4F4F4);
  --pd-color-border: var(--color-border, #D3D3D3);
  --pd-color-text: var(--color-dark, #1A1A1A);
  --pd-color-text-light: var(--color-gray, #5B5B5B);
  --pd-font-body: var(--font-body, 'Noto Serif SC', 'Times New Roman', serif);
  --pd-font-headline: var(--font-headline, Impact, 'Arial Black', sans-serif);
  --pd-font-mono: var(--font-mono, monospace);
  --pd-radius: var(--radius, 4px);
  --pd-shadow-card: var(--shadow-card, 0 2px 8px rgba(0,0,0,0.08));
  --pd-space-section: var(--space-xl, 3rem);
  --pd-space-block: var(--space-lg, 2rem);

  display: block;
  padding: var(--space-lg, 2rem) 0 var(--space-2xl, 4rem);
  font-family: var(--pd-font-body);
  color: var(--pd-color-text);
  line-height: 1.7;
  background: var(--color-gray, #5B5B5B);
  position: relative;
}

/* 面包屑 */
.page-disclaimer .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-xs, 0.25rem) var(--space-sm, 0.5rem);
  margin-bottom: var(--space-lg, 2rem);
  font-size: var(--size-small, 0.8rem);
  font-family: var(--pd-font-body);
  color: var(--pd-color-text-light);
}

.page-disclaimer .breadcrumb__link {
  color: var(--pd-color-accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}

.page-disclaimer .breadcrumb__link:hover,
.page-disclaimer .breadcrumb__link:focus-visible {
  border-bottom-color: var(--pd-color-accent);
}

.page-disclaimer .breadcrumb__sep {
  color: var(--pd-color-border);
  margin: 0 var(--space-xs, 0.25rem);
}

.page-disclaimer .breadcrumb__current {
  color: var(--pd-color-text-light);
  font-weight: 600;
}

/* Hero 区域 */
.page-disclaimer__hero {
  position: relative;
  border-radius: var(--pd-radius);
  overflow: hidden;
  margin-bottom: var(--pd-space-block);
  box-shadow: var(--pd-shadow-card);
  background: var(--pd-color-bg-card);
}

.page-disclaimer__hero-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 800 / 400;
}

.page-disclaimer__hero-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: flex-start;
  padding: var(--space-lg, 2rem) var(--space-md, 1rem);
  background: linear-gradient(to top, rgba(26,26,26,0.85) 0%, rgba(26,26,26,0.2) 60%, transparent 100%);
  pointer-events: none;
}

.page-disclaimer__title {
  font-family: var(--pd-font-headline);
  font-size: var(--size-h2, 2.5rem);
  font-weight: var(--weight-h1, 900);
  color: var(--color-white, #FFFFFF);
  margin: 0 0 var(--space-xs, 0.25rem);
  line-height: 1.1;
  text-shadow: 0 2px 8px rgba(0,0,0,0.3);
  letter-spacing: 0.02em;
}

.page-disclaimer__subtitle {
  font-family: var(--pd-font-body);
  font-size: var(--size-body, 1rem);
  color: var(--color-light, #F4F4F4);
  margin: 0;
  opacity: 0.9;
  font-weight: 400;
  text-shadow: 0 1px 4px rgba(0,0,0,0.2);
}

/* 导语 */
.page-disclaimer__intro {
  margin-bottom: var(--pd-space-section);
  padding: var(--space-md, 1rem) var(--space-lg, 2rem);
  background: var(--pd-color-bg-card);
  border-left: 4px solid var(--pd-color-accent);
  border-radius: var(--pd-radius);
  box-shadow: var(--pd-shadow-card);
}

.page-disclaimer__intro-text {
  margin: 0;
  font-size: var(--size-body, 1rem);
  color: var(--pd-color-text);
  line-height: 1.8;
}

/* 内联链接 */
.page-disclaimer__inline-link {
  color: var(--pd-color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-color: var(--pd-color-border);
  transition: text-decoration-color 0.2s, color 0.2s;
}

.page-disclaimer__inline-link:hover,
.page-disclaimer__inline-link:focus-visible {
  color: var(--pd-color-accent-alt);
  text-decoration-color: var(--pd-color-accent-alt);
}

/* 章节通用 */
.page-disclaimer__section {
  display: flex;
  gap: var(--space-md, 1rem);
  margin-bottom: var(--pd-space-section);
  padding: var(--space-lg, 2rem);
  background: var(--pd-color-bg-card);
  border-radius: var(--pd-radius);
  box-shadow: var(--pd-shadow-card);
  transition: box-shadow 0.3s, transform 0.3s;
  position: relative;
}

.page-disclaimer__section:hover {
  box-shadow: var(--shadow-hover, 0 4px 16px rgba(0,0,0,0.12));
  transform: translateY(-2px);
}

.page-disclaimer__section-number {
  flex: 0 0 auto;
  font-family: var(--pd-font-headline);
  font-size: var(--size-h1, 2.8rem);
  font-weight: var(--weight-h1, 900);
  color: var(--pd-color-accent);
  line-height: 1;
  opacity: 0.3;
  min-width: 2.4rem;
  user-select: none;
}

.page-disclaimer__section-content {
  flex: 1;
  min-width: 0;
}

.page-disclaimer__section-header {
  display: flex;
  align-items: center;
  gap: var(--space-sm, 0.5rem);
  margin-bottom: var(--space-md, 1rem);
}

.page-disclaimer__section-icon {
  flex: 0 0 auto;
  width: 48px;
  height: 48px;
  border-radius: var(--pd-radius);
  object-fit: contain;
  background: var(--color-light, #F4F4F4);
  padding: 4px;
  box-shadow: inset 0 0 0 1px var(--pd-color-border);
}

.page-disclaimer__section-heading {
  font-family: var(--pd-font-headline);
  font-size: var(--size-h3, 1.4rem);
  font-weight: var(--weight-h2, 700);
  color: var(--pd-color-text);
  margin: 0;
  line-height: 1.2;
  letter-spacing: 0.01em;
}

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

.page-disclaimer__section-body p {
  margin: 0 0 var(--space-md, 1rem);
}

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

.page-disclaimer__list {
  margin: var(--space-sm, 0.5rem) 0 var(--space-md, 1rem);
  padding-left: var(--space-lg, 2rem);
  list-style: none;
}

.page-disclaimer__list li {
  position: relative;
  margin-bottom: var(--space-sm, 0.5rem);
  padding-left: var(--space-md, 1rem);
}

.page-disclaimer__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 6px;
  height: 6px;
  background: var(--pd-color-accent);
  border-radius: 50%;
  transform: translateY(-50%);
}

.page-disclaimer__list li:last-child {
  margin-bottom: 0;
}

/* 底部附加信息 */
.page-disclaimer__additional {
  margin-top: var(--pd-space-block);
  margin-bottom: var(--pd-space-block);
}

.page-disclaimer__divider {
  margin-bottom: var(--space-lg, 2rem);
  border-color: var(--pd-color-border);
}

.page-disclaimer__additional-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md, 1rem);
}

.page-disclaimer__additional-card {
  padding: var(--space-md, 1rem) var(--space-lg, 2rem);
  background: var(--pd-color-bg-card);
  border-radius: var(--pd-radius);
  box-shadow: var(--pd-shadow-card);
  border-left: 3px solid var(--pd-color-accent-alt);
}

.page-disclaimer__additional-heading {
  font-family: var(--pd-font-headline);
  font-size: var(--size-h3, 1.4rem);
  font-weight: var(--weight-h2, 700);
  color: var(--pd-color-text);
  margin: 0 0 var(--space-xs, 0.25rem);
  line-height: 1.2;
}

.page-disclaimer__additional-text {
  font-family: var(--pd-font-body);
  font-size: var(--size-body, 1rem);
  color: var(--pd-color-text-light);
  margin: 0;
  line-height: 1.6;
}

.page-disclaimer__additional-text .page-disclaimer__inline-link {
  color: var(--pd-color-accent);
}

/* 信任声明 */
.page-disclaimer__trust {
  text-align: center;
  padding: var(--space-md, 1rem) var(--space-lg, 2rem);
  background: var(--color-dark, #1A1A1A);
  border-radius: var(--pd-radius);
  box-shadow: var(--pd-shadow-card);
}

.page-disclaimer__trust-text {
  font-family: var(--pd-font-mono);
  font-size: var(--size-small, 0.8rem);
  color: var(--color-white, #FFFFFF);
  margin: 0;
  letter-spacing: 0.02em;
  opacity: 0.9;
}

/* ===== 响应式 ===== */
/* 窄屏优先 (移动端) */
@media (max-width: 639px) {
  .page-disclaimer {
    padding: var(--space-md, 1rem) 0 var(--space-xl, 3rem);
  }

  .page-disclaimer__hero-overlay {
    padding: var(--space-sm, 0.5rem) var(--space-md, 1rem);
  }

  .page-disclaimer__title {
    font-size: var(--size-h3, 1.4rem);
  }

  .page-disclaimer__subtitle {
    font-size: var(--size-small, 0.8rem);
  }

  .page-disclaimer__section {
    flex-direction: column;
    gap: var(--space-sm, 0.5rem);
    padding: var(--space-md, 1rem);
  }

  .page-disclaimer__section-number {
    font-size: var(--size-h2, 2rem);
    opacity: 0.2;
    min-width: auto;
  }

  .page-disclaimer__section-header {
    flex-wrap: wrap;
  }

  .page-disclaimer__section-icon {
    width: 36px;
    height: 36px;
  }

  .page-disclaimer__section-heading {
    font-size: 1.2rem;
  }

  .page-disclaimer__intro {
    padding: var(--space-sm, 0.5rem) var(--space-md, 1rem);
  }

  .page-disclaimer__additional-card {
    padding: var(--space-sm, 0.5rem) var(--space-md, 1rem);
  }

  .page-disclaimer__list {
    padding-left: var(--space-md, 1rem);
  }

  .page-disclaimer__list li {
    padding-left: var(--space-sm, 0.5rem);
  }
}

/* 平板及以上 */
@media (min-width: 640px) {
  .page-disclaimer__additional-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-disclaimer__title {
    font-size: var(--size-h1, 2.8rem);
  }
}

/* 桌面大屏 */
@media (min-width: 1024px) {
  .page-disclaimer {
    padding: var(--space-xl, 3rem) 0 var(--space-2xl, 4rem);
  }

  .page-disclaimer .container {
    max-width: var(--max-width, 1200px);
    margin: 0 auto;
    padding: 0 var(--space-lg, 2rem);
  }

  .page-disclaimer__section {
    padding: var(--space-xl, 3rem);
  }

  .page-disclaimer__section-number {
    font-size: var(--size-h1, 2.8rem);
    opacity: 0.15;
  }

  .page-disclaimer__hero-overlay {
    padding: var(--space-xl, 3rem);
  }

  .page-disclaimer__title {
    font-size: var(--size-h1, 2.8rem);
  }

  .page-disclaimer__subtitle {
    font-size: var(--size-h2, 2rem);
  }
}

/* ===== 打印样式 ===== */
@media print {
  .page-disclaimer {
    background: none;
    padding: 0;
    color: #000;
  }

  .page-disclaimer .breadcrumb,
  .page-disclaimer__hero-overlay,
  .page-disclaimer__trust {
    display: none;
  }

  .page-disclaimer__hero {
    border: 1px solid #ccc;
    box-shadow: none;
    margin-bottom: 1.5rem;
  }

  .page-disclaimer__section {
    box-shadow: none;
    border: 1px solid #ddd;
    break-inside: avoid;
    padding: 1rem;
    margin-bottom: 1rem;
    transform: none !important;
  }

  .page-disclaimer__section:hover {
    box-shadow: none;
    transform: none;
  }

  .page-disclaimer__section-number {
    color: #666;
    opacity: 0.5;
  }

  .page-disclaimer__inline-link {
    color: #333;
    text-decoration: underline;
  }

  .page-disclaimer__additional-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
  }

  .page-disclaimer__additional-card {
    box-shadow: none;
    border: 1px solid #eee;
  }

  .page-disclaimer__intro {
    border-left-color: #999;
    box-shadow: none;
  }

  .page-disclaimer__list li::before {
    background: #666;
  }

  .page-disclaimer__section-icon {
    display: none;
  }
}

/* ===== 滚动显现动画 (渐进增强) ===== */
@media (prefers-reduced-motion: no-preference) {
  .page-disclaimer [data-reveal] {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }

  .page-disclaimer [data-reveal][data-revealed] {
    opacity: 1;
    transform: translateY(0);
  }

  .page-disclaimer [data-reveal-delay="150"] { transition-delay: 0.15s; }
  .page-disclaimer [data-reveal-delay="200"] { transition-delay: 0.2s; }
  .page-disclaimer [data-reveal-delay="300"] { transition-delay: 0.3s; }
  .page-disclaimer [data-reveal-delay="400"] { transition-delay: 0.4s; }
  .page-disclaimer [data-reveal-delay="500"] { transition-delay: 0.5s; }
  .page-disclaimer [data-reveal-delay="550"] { transition-delay: 0.55s; }
  .page-disclaimer [data-reveal-delay="600"] { transition-delay: 0.6s; }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer [data-reveal] {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}

/* ===== 高对比度与可访问性 ===== */
@media (prefers-contrast: high) {
  .page-disclaimer {
    --pd-color-accent: #cc0020;
    --pd-color-accent-alt: #007a6b;
  }

  .page-disclaimer__section-number {
    opacity: 0.6;
  }

  .page-disclaimer__list li::before {
    background: #cc0020;
  }

  .page-disclaimer__inline-link {
    text-decoration: underline;
    text-underline-offset: 3px;
  }
}

/* ===== 焦点样式 ===== */
.page-disclaimer a:focus-visible,
.page-disclaimer button:focus-visible {
  outline: 3px solid var(--pd-color-accent);
  outline-offset: 2px;
  border-radius: var(--pd-radius);
}

/* ===== 确保容器宽度 ===== */
.page-disclaimer .container {
  width: 100%;
  max-width: var(--max-width, 1200px);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-md, 1rem);
  padding-right: var(--space-md, 1rem);
  box-sizing: border-box;
}

@media (min-width: 768px) {
  .page-disclaimer .container {
    padding-left: var(--space-lg, 2rem);
    padding-right: var(--space-lg, 2rem);
  }
}