/* ================= 使用说明页专属样式 ================= */
.page-disclaimer {
  --paper-bg: #F6F1E7;
  --paper-bg-deep: #ECE4D3;
  --paper-ink: #33302A;
  --paper-ink-light: #6B6457;
  --paper-line: rgba(80, 70, 50, 0.22);
  --paper-line-soft: rgba(80, 70, 50, 0.12);
  --stamp-red: #A53221;
  --stamp-red-soft: rgba(165, 50, 33, 0.12);
  position: relative;
  background-color: var(--paper-bg);
  background-image:
    radial-gradient(circle at 16% 18%, rgba(255, 255, 255, 0.55), transparent 40%),
    radial-gradient(circle at 84% 64%, rgba(206, 194, 166, 0.35), transparent 46%),
    repeating-linear-gradient(0deg, rgba(80, 70, 50, 0.014) 0, rgba(80, 70, 50, 0.014) 1px, transparent 1px, transparent 3px),
    repeating-linear-gradient(90deg, rgba(80, 70, 50, 0.014) 0, rgba(80, 70, 50, 0.014) 1px, transparent 1px, transparent 3px);
  color: var(--paper-ink);
  overflow-x: hidden;
  padding-bottom: 48px;
}

.page-disclaimer .content-shell {
  position: relative;
  z-index: 1;
}

.page-disclaimer .breadcrumb {
  padding-top: 18px;
  margin-bottom: 4px;
}

.page-disclaimer .breadcrumb-item a {
  color: var(--color-wine);
  text-decoration: none;
}

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

.page-disclaimer .breadcrumb-current {
  color: var(--paper-ink);
}

.page-disclaimer .disclaimer-hero {
  display: grid;
  gap: 26px;
  margin-bottom: 28px;
  padding: clamp(28px, 5vw, 56px);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.7), rgba(255, 255, 255, 0.18)),
    var(--paper-bg-deep);
  border: 1px solid var(--paper-line);
  border-top: 4px solid var(--stamp-red);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.5) inset,
    0 18px 36px rgba(80, 70, 50, 0.1);
}

.page-disclaimer .hero-copy .section-tag {
  margin-bottom: 14px;
}

.page-disclaimer .hero-copy h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 5.5vw, 56px);
  line-height: 1.08;
  letter-spacing: 0.01em;
  margin: 12px 0 16px;
  color: var(--paper-ink);
}

.page-disclaimer .hero-lead {
  margin: 0 0 24px;
  max-width: 36em;
  color: var(--paper-ink-light);
  font-size: 16px;
  line-height: 1.75;
}

.page-disclaimer .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-disclaimer .hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 30px;
  margin: 28px 0 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--paper-line-soft);
}

.page-disclaimer .meta-item {
  display: grid;
  gap: 3px;
}

.page-disclaimer .meta-item dt {
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--paper-ink-light);
}

.page-disclaimer .meta-item dd {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--paper-ink);
}

.page-disclaimer .hero-paper {
  border: 1px solid var(--paper-line);
  border-radius: 3px;
  background: var(--paper-bg-deep);
  box-shadow: 0 10px 24px rgba(80, 70, 50, 0.12);
}

.page-disclaimer .hero-paper img {
  display: block;
  width: 100%;
  height: auto;
  opacity: 0.92;
}

.page-disclaimer .btn-primary {
  background: var(--color-wine);
  border: 1px solid var(--color-wine);
  color: #FFFFFF;
}

.page-disclaimer .btn-ghost {
  background: transparent;
  border: 1px solid var(--paper-ink-light);
  color: var(--paper-ink);
}

.page-disclaimer .section-tag {
  display: inline-block;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--stamp-red);
  background: rgba(165, 50, 33, 0.05);
  border: 1px solid rgba(165, 50, 33, 0.35);
  border-radius: 2px;
}

.page-disclaimer .term-section {
  margin-bottom: 24px;
  padding: clamp(24px, 4vw, 44px);
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid var(--paper-line);
  box-shadow: 0 2px 0 rgba(80, 70, 50, 0.04);
}

.page-disclaimer .section-head {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 22px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--paper-line-soft);
}

.page-disclaimer .section-head-copy .section-tag {
  margin-bottom: 6px;
}

.page-disclaimer .section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 30px);
  line-height: 1.2;
  margin: 6px 0 8px;
  color: var(--paper-ink);
}

.page-disclaimer .section-head p {
  margin: 0;
  color: var(--paper-ink-light);
  font-size: 14px;
  line-height: 1.6;
}

.page-disclaimer .section-stamp {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin-top: 4px;
  border: 2px solid var(--stamp-red);
  outline: 1px dashed rgba(165, 50, 33, 0.6);
  outline-offset: 3px;
  border-radius: 10px;
  background: var(--stamp-red-soft);
  color: var(--stamp-red);
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 700;
  transform: rotate(-7deg);
}

.page-disclaimer .term-list {
  display: grid;
  gap: 12px;
}

.page-disclaimer .term-card {
  margin: 0;
  padding: 0;
  background: rgba(255, 255, 255, 0.45);
  border: 1px solid var(--paper-line);
  border-left: 3px solid var(--stamp-red);
  border-radius: 2px;
}

.page-disclaimer .term-card[open] {
  background: rgba(255, 255, 255, 0.8);
  box-shadow: 0 8px 20px rgba(80, 70, 50, 0.08);
}

.page-disclaimer .term-card summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 18px;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  color: var(--paper-ink);
}

.page-disclaimer .term-card summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer .term-card summary::after {
  content: '+';
  font-size: 22px;
  font-weight: 400;
  line-height: 1;
  color: var(--stamp-red);
  transition: transform 0.2s var(--ease);
}

.page-disclaimer .term-card[open] summary::after {
  content: '−';
}

.page-disclaimer .term-card summary:hover {
  background: rgba(165, 50, 33, 0.05);
}

.page-disclaimer .term-card summary:focus-visible {
  outline: 2px solid var(--stamp-red);
  outline-offset: -2px;
}

.page-disclaimer .term-body {
  padding: 0 18px 18px;
  color: var(--paper-ink-light);
  font-size: 14px;
  line-height: 1.75;
}

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

.page-disclaimer .term-body a {
  color: var(--color-wine);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-disclaimer .disclaimer-contact {
  margin-top: 0;
}

.page-disclaimer .contact-card {
  padding: 40px 28px;
  text-align: center;
  background:
    radial-gradient(420px 160px at 50% 0%, rgba(165, 50, 33, 0.08), transparent 70%),
    rgba(255, 255, 255, 0.55);
  border: 1px solid var(--paper-line);
  border-top: 4px solid var(--color-gold);
  border-radius: 3px;
}

.page-disclaimer .contact-card .section-tag {
  margin-bottom: 10px;
}

.page-disclaimer .contact-card h2 {
  font-family: var(--font-display);
  font-size: clamp(22px, 3vw, 30px);
  margin: 10px 0 12px;
  color: var(--paper-ink);
}

.page-disclaimer .contact-card p {
  max-width: 38em;
  margin: 0 auto 24px;
  color: var(--paper-ink-light);
  font-size: 15px;
  line-height: 1.7;
}

.page-disclaimer .contact-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.page-disclaimer .back-top {
  position: fixed;
  right: 20px;
  bottom: 24px;
  z-index: 50;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--paper-line);
  border-radius: 50%;
  background: var(--paper-bg);
  color: var(--stamp-red);
  box-shadow: 0 8px 22px rgba(80, 70, 50, 0.18);
  text-decoration: none;
  opacity: 1;
  pointer-events: auto;
}

.page-disclaimer .back-top-icon {
  font-size: 20px;
  line-height: 1;
}

@media (min-width: 768px) {
  .page-disclaimer .hero-meta {
    gap: 40px;
  }

  .page-disclaimer .term-list {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
}

@media (min-width: 1024px) {
  .page-disclaimer {
    padding-bottom: 72px;
  }

  .page-disclaimer .disclaimer-hero {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 48px;
    align-items: center;
  }

  .page-disclaimer .hero-copy h1 {
    font-size: 52px;
  }

  .page-disclaimer .term-section {
    padding: 44px 48px;
    margin-bottom: 28px;
  }

  .page-disclaimer .section-head h2 {
    font-size: 30px;
  }
}