/* ===== 页面专属：使用说明与声明 ===== */
.page-disclaimer {
  position: relative;
  background-color: var(--paper);
  background-image: radial-gradient(var(--ghost) 1px, transparent 1px);
  background-size: 22px 22px;
}

.page-disclaimer .pledge-hero {
  position: relative;
  z-index: 1;
  padding-top: var(--space-5);
  padding-bottom: var(--space-4);
}

.page-disclaimer .breadcrumb {
  margin-bottom: var(--space-6);
}

.page-disclaimer .pledge-hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  align-items: center;
  margin-bottom: var(--space-6);
}

.page-disclaimer .pledge-hero-copy .section-index {
  margin-bottom: var(--space-2);
}

.page-disclaimer .pledge-hero-h1 {
  margin: 0 0 var(--space-3);
}

.page-disclaimer .pledge-hero-lead {
  margin: 0 0 var(--space-3);
  font-family: var(--font-heading);
  font-weight: 300;
  font-size: 1.125rem;
  letter-spacing: 0.06em;
  color: var(--peach);
}

.page-disclaimer .pledge-hero-summary {
  max-width: 38em;
  margin: 0;
  color: var(--graphite);
  font-size: 0.9375rem;
  line-height: 1.8;
}

.page-disclaimer .pledge-hero-seal {
  display: block;
  width: 180px;
  height: 180px;
  margin: 0 auto;
  color: var(--ink);
  transform: rotate(-6deg);
}

.page-disclaimer .pledge-seal-text {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  fill: currentColor;
}

.page-disclaimer .pledge-hero-figure {
  margin: 0 0 var(--space-4);
  position: relative;
  border: 1px solid var(--graphite);
  background: var(--ink);
  box-shadow: 10px 10px 0 var(--peach);
}

.page-disclaimer .pledge-hero-figure::after {
  content: "INDEX / 2026";
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  z-index: 1;
  padding: 4px 10px;
  background: var(--ink);
  color: var(--peach);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}

.page-disclaimer .pledge-hero-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  opacity: 0.9;
}

/* 文章区域 */
.page-disclaimer .pledge-article {
  padding-top: var(--space-6);
  padding-bottom: var(--space-6);
}

.page-disclaimer .pledge-article-inner {
  max-width: 760px;
  margin: 0 auto;
  padding: var(--space-5);
  background: rgba(255, 255, 255, 0.72);
  border-top: 2px solid var(--ink);
  border-bottom: 1px solid var(--ghost);
}

.page-disclaimer .pledge-article-intro {
  margin: 0 0 var(--space-4);
  color: var(--graphite);
  font-size: 1rem;
  line-height: 1.8;
}

.page-disclaimer .pledge-article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--ghost);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.03em;
  color: var(--muted);
}

.page-disclaimer .pledge-article-meta span::before {
  content: "◆";
  margin-right: 6px;
  color: var(--peach);
  font-size: 0.6rem;
}

.page-disclaimer .pledge-toc {
  margin: 0 0 var(--space-6);
  padding: var(--space-4);
  border: 1px solid var(--ghost);
  border-left: 3px solid var(--peach);
  background: var(--paper);
  list-style: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
}

.page-disclaimer .pledge-toc li {
  margin: 0;
}

.page-disclaimer .pledge-toc a {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.875rem;
  letter-spacing: 0.02em;
}

.page-disclaimer .pledge-toc a:hover,
.page-disclaimer .pledge-toc a:focus {
  color: var(--peach);
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* 小节 */
.page-disclaimer .pledge-section {
  margin-top: var(--space-6);
}

.page-disclaimer .pledge-section-head {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--ghost);
}

.page-disclaimer .pledge-section-index {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--peach);
  white-space: nowrap;
}

.page-disclaimer .pledge-section h2 {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: 200;
  font-size: clamp(1.5rem, 3vw, 2rem);
  letter-spacing: -0.01em;
  font-style: italic;
}

.page-disclaimer .pledge-section-body {
  color: var(--graphite);
  font-size: 0.9375rem;
  line-height: 1.85;
}

.page-disclaimer .pledge-section-body p {
  margin: 0;
}

.page-disclaimer .pledge-section-body p + p {
  margin-top: var(--space-3);
}

.page-disclaimer .pledge-section-body a {
  color: var(--ink);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
  text-decoration-color: var(--peach);
  transition: background 0.2s ease;
}

.page-disclaimer .pledge-section-body a:hover,
.page-disclaimer .pledge-section-body a:focus {
  background: var(--yellow);
}

/* 同意确认 */
.page-disclaimer .pledge-agree {
  margin-top: var(--space-7);
  padding: var(--space-6) var(--space-5);
  background: var(--ink);
  color: var(--paper);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-disclaimer .pledge-agree::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: var(--gradient);
}

.page-disclaimer .pledge-agree::after {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -60px;
  width: 140px;
  height: 140px;
  border: 24px solid var(--strawberry);
  border-radius: 50%;
  opacity: 0.18;
}

.page-disclaimer .pledge-agree-seal {
  display: block;
  width: 72px;
  height: 72px;
  margin: 0 auto var(--space-4);
  color: var(--peach);
}

.page-disclaimer .pledge-agree-title {
  position: relative;
  z-index: 1;
  margin: 0 0 var(--space-4);
  font-family: var(--font-heading);
  font-weight: 200;
  font-size: clamp(1.25rem, 2vw, 1.5rem);
  letter-spacing: 0.02em;
  color: var(--paper);
}

.page-disclaimer .pledge-agree-actions {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
}

.page-disclaimer .pledge-agree .btn {
  min-width: 180px;
}

.page-disclaimer .pledge-agree-exit {
  display: inline-block;
  color: var(--muted);
  font-size: 0.8125rem;
  text-underline-offset: 4px;
  text-decoration-color: var(--peach);
}

.page-disclaimer .pledge-agree-exit:hover,
.page-disclaimer .pledge-agree-exit:focus {
  color: var(--paper);
  text-decoration-color: var(--yellow);
}

.page-disclaimer .pledge-agree-note {
  position: relative;
  z-index: 1;
  margin: var(--space-3) 0 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.03em;
  color: var(--muted);
}

/* 返回首页 */
.page-disclaimer .pledge-go-home {
  padding-top: var(--space-5);
  padding-bottom: var(--space-7);
  text-align: center;
}

.page-disclaimer .pledge-go-home a {
  display: inline-block;
  padding: 10px 24px;
  border: 1px solid var(--graphite);
  color: var(--ink);
  font-size: 0.875rem;
  text-decoration: none;
  background: var(--paper);
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.page-disclaimer .pledge-go-home a:hover,
.page-disclaimer .pledge-go-home a:focus {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}

/* 返回页首 */
.page-disclaimer .pledge-to-top {
  position: fixed;
  right: var(--space-4);
  bottom: var(--space-4);
  z-index: 20;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  border: 1px solid var(--ink);
  box-shadow: 4px 4px 0 var(--peach);
}

.page-disclaimer .pledge-to-top:hover,
.page-disclaimer .pledge-to-top:focus {
  background: var(--peach);
  border-color: var(--peach);
  color: var(--ink);
}

/* 桌面端增强 */
@media (min-width: 720px) {
  .page-disclaimer .pledge-hero {
    padding-top: var(--space-7);
    padding-bottom: var(--space-5);
  }

  .page-disclaimer .pledge-hero-inner {
    grid-template-columns: 1fr auto;
    gap: var(--space-7);
  }

  .page-disclaimer .pledge-hero-seal {
    width: 220px;
    height: 220px;
    margin: 0;
    justify-self: end;
  }

  .page-disclaimer .pledge-article {
    padding-top: var(--space-7);
    padding-bottom: var(--space-7);
  }

  .page-disclaimer .pledge-article-inner {
    padding: var(--space-7) var(--space-6);
  }

  .page-disclaimer .pledge-toc {
    grid-template-columns: repeat(5, auto);
    justify-content: space-between;
  }

  .page-disclaimer .pledge-agree {
    padding: var(--space-7) var(--space-6);
  }

  .page-disclaimer .pledge-agree-actions {
    flex-direction: row;
    justify-content: center;
    gap: var(--space-4);
  }

  .page-disclaimer .pledge-go-home {
    padding-top: var(--space-6);
    padding-bottom: var(--space-8);
  }
}

/* 减弱动态偏好 */
@media (prefers-reduced-motion: reduce) {
  .page-disclaimer *,
  .page-disclaimer *::before,
  .page-disclaimer *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }
}