/* ================================
   使用说明 · page-disclaimer
   ================================ */

.page-disclaimer {
  --disclaimer-bg: #F2F0EB;
  --disclaimer-ink: var(--ink-dark);
  --disclaimer-blue: var(--deep-blue);
  --disclaimer-green: var(--brand-green);
  --disclaimer-gold: var(--gold-accent);

  position: relative;
  background-color: var(--disclaimer-bg);
  background-image:
    linear-gradient(rgba(10, 37, 64, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(10, 37, 64, 0.04) 1px, transparent 1px);
  background-size: 44px 44px;
  color: var(--disclaimer-ink);
  overflow-x: hidden;
  padding-bottom: clamp(48px, 8vw, 96px);
}

/* 面包屑 */
.page-disclaimer .breadcrumbs {
  position: relative;
  z-index: 1;
  padding-top: 24px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: rgba(26, 25, 24, 0.6);
}

/* Hero 首屏 */
.page-disclaimer .disclaimer-hero {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  padding-top: 36px;
  padding-bottom: 24px;
}

.page-disclaimer .disclaimer-hero-copy {
  max-width: 820px;
}

.page-disclaimer .section-label {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--green-deep);
}

.page-disclaimer .disclaimer-hero h1 {
  margin: 16px 0 18px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(32px, 7vw, 62px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--deep-blue);
}

.page-disclaimer .page-hero-desc {
  max-width: 640px;
  margin: 0;
  padding-left: 16px;
  border-left: 4px solid var(--brand-green);
  font-size: clamp(16px, 1.8vw, 19px);
  line-height: 1.7;
  color: rgba(26, 25, 24, 0.82);
}

/* 本页索引 */
.page-disclaimer .disclaimer-toc {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px 12px;
  margin-top: 30px;
  padding: 18px 0;
  border-top: 2px solid var(--deep-blue);
  border-bottom: 2px solid var(--deep-blue);
}

.page-disclaimer .toc-label {
  grid-column: 1 / -1;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(26, 25, 24, 0.55);
}

.page-disclaimer .toc-link {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 6px;
  font-weight: 500;
  color: var(--deep-blue);
  text-decoration: none;
  border: 1px solid transparent;
  transition:
    border-color var(--duration),
    background-color var(--duration),
    color var(--duration);
}

.page-disclaimer .toc-link:hover,
.page-disclaimer .toc-link:focus-visible {
  border-color: var(--brand-green);
  background-color: rgba(0, 166, 81, 0.06);
}

.page-disclaimer .toc-num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13px;
  color: var(--brand-green);
}

/* 首屏配图 */
.page-disclaimer .disclaimer-hero-media {
  position: relative;
  z-index: 1;
}

.page-disclaimer .media-frame-7-5 {
  aspect-ratio: 7 / 5;
  overflow: hidden;
  background-color: var(--paper-light);
  border: 2px solid var(--deep-blue);
  box-shadow: var(--shadow-hard);
}

.page-disclaimer .media-frame-7-5 img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 正文章节 */
.page-disclaimer .disclaimer-body {
  position: relative;
  z-index: 1;
  margin-top: 8px;
  padding: 0;
}

.page-disclaimer .disclaimer-section {
  position: relative;
  padding: clamp(28px, 4vw, 48px) 0;
  border-top: 2px solid var(--deep-blue);
  scroll-margin-top: calc(var(--header-height) + 20px);
}

.page-disclaimer .chapter-index {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(48px, 8vw, 72px);
  line-height: 1;
  letter-spacing: -0.04em;
  color: rgba(0, 166, 81, 0.14);
  -webkit-text-stroke: 1px rgba(0, 166, 81, 0.65);
  user-select: none;
}

.page-disclaimer .disclaimer-section h2 {
  margin: 10px 0 20px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(24px, 3.8vw, 36px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--deep-blue);
}

.page-disclaimer .disclaimer-section h2::after {
  content: "";
  display: inline-block;
  width: 28px;
  height: 8px;
  margin-left: 14px;
  background: linear-gradient(90deg, var(--brand-green) 0 60%, var(--gold-accent) 60% 100%);
  transform: skew(-30deg);
  vertical-align: middle;
}

.page-disclaimer .disclaimer-section p,
.page-disclaimer .disclaimer-section ul {
  margin: 0 0 18px;
  font-size: 16px;
  line-height: 1.78;
  color: rgba(26, 25, 24, 0.86);
  max-width: 70ch;
}

.page-disclaimer .disclaimer-section ul {
  padding: 0;
  list-style: none;
}

.page-disclaimer .disclaimer-section li {
  position: relative;
  padding: 12px 0 12px 30px;
  border-bottom: 1px solid rgba(10, 37, 64, 0.1);
}

.page-disclaimer .disclaimer-section li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 23px;
  width: 14px;
  height: 4px;
  background: var(--brand-green);
  transform: skew(-30deg);
}

.page-disclaimer .disclaimer-section li strong {
  color: var(--deep-blue);
  font-weight: 700;
}

/* 金色免责声明 */
.page-disclaimer .disclaimer-notice {
  margin: 20px 0 28px;
  padding: 24px;
  border: 2px solid var(--gold-accent);
  background: linear-gradient(135deg, rgba(212, 175, 55, 0.14), rgba(212, 175, 55, 0.03));
  box-shadow: var(--shadow-hard);
}

.page-disclaimer .disclaimer-notice p {
  margin: 0;
  font-size: 16px;
  line-height: 1.75;
}

.page-disclaimer .disclaimer-notice strong {
  color: var(--deep-blue);
}

/* 相关链接与返回顶部 */
.page-disclaimer .disclaimer-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 20px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px dashed rgba(10, 37, 64, 0.28);
}

.page-disclaimer .disclaimer-footer-links .btn {
  min-width: 160px;
  justify-content: center;
}

.page-disclaimer .disclaimer-backtop {
  margin-top: 32px;
  margin-bottom: 0;
  font-family: var(--font-mono);
  font-size: 14px;
}

.page-disclaimer .disclaimer-backtop a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--deep-blue);
  text-decoration: none;
  padding: 10px 16px;
  border: 1px solid var(--deep-blue);
  background: rgba(255, 255, 255, 0.3);
  transition:
    background-color var(--duration),
    color var(--duration),
    transform var(--duration);
}

.page-disclaimer .disclaimer-backtop a:hover,
.page-disclaimer .disclaimer-backtop a:focus-visible {
  background-color: var(--deep-blue);
  color: var(--paper-light);
  transform: translateY(-2px);
}

/* 桌面端增强 */
@media (min-width: 860px) {
  .page-disclaimer .disclaimer-hero {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    gap: 48px;
    align-items: center;
    padding-top: 56px;
  }

  .page-disclaimer .disclaimer-toc {
    grid-template-columns: auto repeat(4, minmax(0, 1fr));
    align-items: center;
    gap: 8px;
  }

  .page-disclaimer .toc-label {
    grid-column: auto;
    margin-right: 10px;
  }

  .page-disclaimer .disclaimer-section p,
  .page-disclaimer .disclaimer-section ul {
    font-size: 17px;
  }

  .page-disclaimer .disclaimer-section ul {
    max-width: 72ch;
  }
}