/* ===== 页面专属：使用说明（.page-disclaimer） ===== */
.page-disclaimer {
  --disclaimer-gold: #D4AF37;
  --disclaimer-purple: #7B2D8E;
  --disclaimer-cyan: #00CED1;
  --disclaimer-bg: #0A0B1A;
  --disclaimer-surface: #141625;
  --disclaimer-card: #1A1C2E;
  --disclaimer-text: #FFFFFF;
  --disclaimer-muted: #B0B0C0;
  --disclaimer-border: #2A2D4A;
  --disclaimer-glow: 0 0 12px rgba(212,175,55,0.25);
  --disclaimer-radius: 6px;

  display: block;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px 80px;
  color: var(--disclaimer-text);
  font-family: var(--font-body, 'Inter', sans-serif);
  background: transparent;
  position: relative;
}

/* ---------- HERO 区 ---------- */
.disclaimer-hero {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 48px 0 32px;
  border-bottom: 2px solid var(--disclaimer-border);
  flex-wrap: wrap;
}

.disclaimer-seal {
  width: 80px;
  height: 80px;
  object-fit: contain;
  opacity: 0.85;
  filter: drop-shadow(0 0 6px rgba(212,175,55,0.3));
  flex-shrink: 0;
}

.disclaimer-hero-text {
  flex: 1;
  min-width: 200px;
}

.disclaimer-hero-text .block-label {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.08em;
  background: rgba(212,175,55,0.12);
  padding: 2px 12px;
  border-radius: var(--disclaimer-radius);
  margin-bottom: 8px;
}

.disclaimer-title {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-weight: 800;
  font-size: clamp(2rem, 5vw, 3.2rem);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 4px;
  color: var(--disclaimer-text);
  text-shadow: 0 0 12px rgba(212,175,55,0.3);
  line-height: 1.1;
}

.disclaimer-sub {
  font-size: 14px;
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  letter-spacing: 0.02em;
  margin: 0;
}

.disclaimer-status {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 18px;
  background: rgba(0,206,209,0.08);
  border: 1px solid rgba(0,206,209,0.2);
  border-radius: var(--disclaimer-radius);
  flex-shrink: 0;
}

.disclaimer-status .status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
  background: var(--disclaimer-cyan);
  box-shadow: 0 0 8px rgba(0,206,209,0.5);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

.disclaimer-status span:last-child {
  font-size: 13px;
  letter-spacing: 0.03em;
}

/* ---------- 锚点导航 ---------- */
.disclaimer-toc {
  padding: 20px 0 16px;
  border-bottom: 1px solid var(--disclaimer-border);
  margin-bottom: 32px;
}

.disclaimer-toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
}

.toc-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--disclaimer-muted);
  text-decoration: none;
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 15px;
  padding: 4px 0;
  border-bottom: 2px solid transparent;
  transition: color 0.25s, border-color 0.25s;
}

.toc-link:hover,
.toc-link:focus-visible {
  color: var(--disclaimer-gold);
  border-bottom-color: var(--disclaimer-gold);
  outline: none;
}

.toc-num {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 15px;
  font-weight: 600;
  color: var(--disclaimer-gold);
  opacity: 0.7;
  min-width: 28px;
}

.toc-link:hover .toc-num {
  opacity: 1;
}

/* ---------- 章节通用 ---------- */
.disclaimer-chapter {
  margin-bottom: 48px;
  scroll-margin-top: 80px;
}

.chapter-header {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 12px;
}

.chapter-num {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: clamp(2.6rem, 6vw, 4.2rem);
  font-weight: 800;
  color: var(--disclaimer-gold);
  text-shadow: 0 0 20px rgba(212,175,55,0.3);
  line-height: 1;
  letter-spacing: -0.02em;
  opacity: 0.9;
}

.chapter-heading {
  font-family: var(--font-heading, 'Montserrat', sans-serif);
  font-weight: 700;
  font-size: clamp(1.3rem, 3vw, 1.8rem);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--disclaimer-text);
  margin: 0;
  line-height: 1.2;
}

.chapter-divider {
  height: 3px;
  background: linear-gradient(135deg, var(--disclaimer-gold) 0%, var(--disclaimer-purple) 60%, transparent 100%);
  border-radius: 2px;
  margin: 8px 0 24px;
  width: 100%;
  max-width: 640px;
  clip-path: polygon(0 0, 100% 0, 98% 100%, 0% 100%);
}

.chapter-content {
  padding-left: 0;
}

.chapter-article {
  font-size: 16px;
  line-height: 1.7;
  color: var(--disclaimer-text);
  margin: 0 0 24px;
  max-width: 760px;
}

/* ---------- 条款网格 ---------- */
.article-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

.article-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 18px;
  background: var(--disclaimer-surface);
  border-left: 3px solid var(--disclaimer-gold);
  border-radius: 0 var(--disclaimer-radius) var(--disclaimer-radius) 0;
  transition: background 0.25s, border-color 0.25s;
}

.article-item:hover {
  background: rgba(212,175,55,0.06);
  border-left-color: var(--disclaimer-cyan);
}

.article-mark {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 14px;
  font-weight: 600;
  color: var(--disclaimer-gold);
  white-space: nowrap;
  min-width: 42px;
  padding-top: 1px;
}

.article-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--disclaimer-text);
}

/* ---------- 免責區圖 ---------- */
.disclaimer-fig-wrap {
  margin: 20px 0 28px;
  max-width: 480px;
}

.disclaimer-fig {
  width: 100%;
  height: auto;
  max-width: 480px;
  border-radius: var(--disclaimer-radius);
  border: 1px solid var(--disclaimer-border);
  background: var(--disclaimer-surface);
  object-fit: cover;
  display: block;
}

.fig-caption {
  display: block;
  font-size: 13px;
  margin-top: 6px;
  letter-spacing: 0.02em;
  padding-left: 4px;
}

/* ---------- 联系我们卡片 ---------- */
.contact-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: 20px 0 24px;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--disclaimer-surface);
  border: 1px solid var(--disclaimer-border);
  border-radius: var(--disclaimer-radius);
  transition: border-color 0.25s, box-shadow 0.25s;
}

.contact-card:hover {
  border-color: var(--disclaimer-gold);
  box-shadow: 0 0 12px rgba(212,175,55,0.1);
}

.contact-icon {
  font-size: 22px;
  color: var(--disclaimer-gold);
  text-shadow: 0 0 6px rgba(212,175,55,0.3);
  min-width: 36px;
  text-align: center;
}

.contact-label {
  font-size: 14px;
  color: var(--disclaimer-muted);
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  min-width: 72px;
}

.contact-value {
  font-size: 16px;
  color: var(--disclaimer-text);
  word-break: break-all;
}

.contact-value a {
  color: var(--disclaimer-gold);
  text-decoration: none;
  transition: color 0.2s;
}

.contact-value a:hover {
  color: var(--disclaimer-cyan);
  text-decoration: underline;
}

.contact-note {
  font-size: 14px;
  line-height: 1.6;
  margin: 8px 0 16px;
  padding: 12px 16px;
  background: rgba(0,206,209,0.06);
  border-radius: var(--disclaimer-radius);
  border-left: 3px solid var(--disclaimer-cyan);
}

.disclaimer-links {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  font-size: 14px;
  padding-top: 12px;
}

.disclaimer-links a {
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}

.disclaimer-links a:hover {
  text-decoration: underline;
}

.sep {
  font-size: 16px;
  opacity: 0.4;
}

/* ---------- 返回顶部 ---------- */
.back-top {
  position: fixed;
  bottom: 32px;
  right: 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  color: var(--disclaimer-muted);
  text-decoration: none;
  padding: 8px 12px;
  background: rgba(26,28,46,0.85);
  border: 1px solid var(--disclaimer-border);
  border-radius: var(--disclaimer-radius);
  backdrop-filter: blur(4px);
  transition: color 0.25s, border-color 0.25s, background 0.25s;
  z-index: 50;
}

.back-top:hover,
.back-top:focus-visible {
  color: var(--disclaimer-gold);
  border-color: var(--disclaimer-gold);
  background: rgba(26,28,46,0.95);
  outline: none;
}

.back-top-arrow {
  font-size: 20px;
  line-height: 1;
}

.back-top-label {
  font-size: 11px;
  letter-spacing: 0.06em;
}

/* ===== 响应式 ===== */
@media (min-width: 640px) {
  .page-disclaimer {
    padding: 0 32px 80px;
  }

  .article-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .contact-cards {
    grid-template-columns: 1fr 1fr;
  }

  .disclaimer-hero {
    padding: 56px 0 36px;
    gap: 32px;
  }

  .disclaimer-seal {
    width: 100px;
    height: 100px;
  }

  .disclaimer-toc-list {
    gap: 12px 32px;
  }
}

@media (min-width: 900px) {
  .page-disclaimer {
    padding: 0 48px 100px;
  }

  .contact-cards {
    grid-template-columns: 1fr 1fr 1fr;
  }

  .chapter-content {
    padding-left: 12px;
  }

  .article-item {
    padding: 16px 22px;
  }

  .back-top {
    bottom: 40px;
    right: 40px;
    padding: 10px 16px;
  }

  .back-top-arrow {
    font-size: 24px;
  }

  .back-top-label {
    font-size: 12px;
  }
}

@media (max-width: 480px) {
  .page-disclaimer {
    padding: 0 16px 60px;
  }

  .disclaimer-hero {
    padding: 32px 0 24px;
    gap: 16px;
  }

  .disclaimer-seal {
    width: 60px;
    height: 60px;
  }

  .chapter-num {
    font-size: 2.2rem;
  }

  .chapter-heading {
    font-size: 1.1rem;
  }

  .article-item {
    padding: 12px 14px;
    flex-wrap: wrap;
  }

  .article-mark {
    min-width: 36px;
  }

  .contact-card {
    padding: 12px 14px;
    flex-wrap: wrap;
  }

  .contact-icon {
    min-width: 28px;
    font-size: 18px;
  }

  .contact-label {
    min-width: 60px;
  }

  .disclaimer-toc-list {
    gap: 4px 16px;
  }

  .toc-link {
    font-size: 14px;
  }

  .back-top {
    bottom: 20px;
    right: 16px;
    padding: 6px 10px;
  }

  .back-top-arrow {
    font-size: 18px;
  }

  .back-top-label {
    display: none;
  }
}