.page-privacy {
  --privacy-gap: clamp(2rem, 5vw, 3.5rem);

  background-color: var(--color-black);
  background-image:
    linear-gradient(rgba(201, 162, 39, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201, 162, 39, 0.05) 1px, transparent 1px);
  background-size: 56px 56px;
}

.page-privacy__hero {
  padding-top: var(--space-section);
  padding-bottom: 1.5rem;
}

.page-privacy__hero-label {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.page-privacy__hero-version {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--color-silver);
  border: 1px solid var(--color-gold-line);
  padding: 0.3rem 0.75rem;
  white-space: nowrap;
}

.page-privacy h1 {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.5rem, 7vw, 4.5rem);
  line-height: 1;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  margin: 0 0 1rem;
  color: var(--color-white);
}

.page-privacy__h1-sub {
  display: block;
  margin-top: 0.55em;
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.32em;
  letter-spacing: 0.22em;
  color: var(--color-gold);
}

.page-privacy__hero-lead {
  max-width: 72ch;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--color-silver);
  margin: 0 0 1.5rem;
}

.page-privacy a {
  color: var(--color-blue);
  text-decoration: none;
  border-bottom: 1px solid var(--color-gold-line-soft);
  transition: color var(--ease), border-color var(--ease);
}

.page-privacy a:hover,
.page-privacy a:focus-visible {
  color: var(--color-white);
  border-bottom-color: var(--color-gold);
}

.page-privacy__hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
}

.page-privacy__banner {
  margin-bottom: 1.5rem;
}

.page-privacy__cover {
  display: block;
  width: 100%;
  height: 120px;
  object-fit: cover;
  object-position: center;
  border: 1px solid var(--color-gold-line);
}

/* 吸顶章节目录 */
.page-privacy__toc {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(10, 10, 10, 0.94);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-gold-line-soft);
  margin-bottom: var(--privacy-gap);
}

.page-privacy__toc-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1.125rem;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

.page-privacy__toc-label {
  flex-basis: 100%;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--color-gold);
  text-transform: uppercase;
}

.page-privacy__toc-link {
  font-size: 0.875rem;
  color: var(--color-silver);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--ease), border-color var(--ease);
}

.page-privacy__toc-link:hover,
.page-privacy__toc-link:focus-visible {
  color: var(--color-white);
  border-bottom-color: var(--color-gold);
}

/* 章节布局 */
.page-privacy__section {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-bottom: var(--privacy-gap);
}

.page-privacy__section-index {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(3rem, 8vw, 4.5rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: transparent;
  -webkit-text-stroke: 1px var(--color-gold);
  -webkit-user-select: none;
  user-select: none;
}

.page-privacy__section-content {
  max-width: 70ch;
}

.page-privacy__section-content h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  line-height: 1.15;
  letter-spacing: 0.02em;
  margin: 0 0 1.125rem;
  padding-top: 0.65rem;
  border-top: 2px solid var(--color-gold);
  color: var(--color-white);
}

.page-privacy__section-content p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--color-silver);
  margin: 0 0 1.25rem;
}

.page-privacy__list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
}

.page-privacy__list li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: 0.9rem;
  border-left: 1px solid var(--color-gold-line-soft);
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--color-silver);
}

.page-privacy__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.05em;
  width: 0.45rem;
  height: 1px;
  background: var(--color-gold);
}

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

.page-privacy__list strong {
  color: var(--color-white);
  font-weight: 600;
}

.page-privacy__list--split {
  display: grid;
  gap: 0.875rem;
  margin-bottom: 1.5rem;
}

.page-privacy__list--split li {
  margin-bottom: 0;
  padding: 1.125rem 1.25rem;
  background-color: var(--color-dark);
  border-left: 2px solid var(--color-gold);
}

.page-privacy__list--split li::before {
  display: none;
}

.page-privacy__list--split strong {
  display: block;
  font-family: var(--font-display);
  font-size: 1.125rem;
  letter-spacing: 0.04em;
  margin-bottom: 0.35rem;
  text-transform: uppercase;
}

.page-privacy__list--split span {
  color: var(--color-silver);
  line-height: 1.7;
}

/* 联系信息块 */
.page-privacy__contact {
  margin: 1.5rem 0;
  padding: 1.5rem;
  background-color: var(--color-dark);
  border: 1px solid var(--color-gold-line);
  display: grid;
  gap: 1rem;
}

.page-privacy__contact-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--color-gold-line-soft);
}

.page-privacy__contact-row:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-privacy__contact-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--color-gold);
  text-transform: uppercase;
}

.page-privacy__contact-value {
  color: var(--color-white);
  font-size: 1rem;
  line-height: 1.5;
  word-break: break-word;
}

.page-privacy__contact-note {
  color: var(--color-silver);
  font-size: 0.875rem;
}

.page-privacy__contact-note-extra {
  font-size: 0.875rem;
  color: var(--color-silver);
}

/* 数据保护声明 */
.page-privacy__seal {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.25rem 1.5rem;
  align-items: center;
  margin-top: var(--privacy-gap);
  margin-bottom: 2rem;
  padding: 1.75rem;
  background: linear-gradient(135deg, var(--color-dark) 0%, #1a1a1a 100%);
  border: 1px solid var(--color-gold-line);
}

.page-privacy__seal-icon {
  width: clamp(3.25rem, 8vw, 5rem);
  height: auto;
  grid-row: 1;
  justify-self: start;
}

.page-privacy__seal-text p {
  margin: 0.5rem 0 0;
  max-width: 60ch;
  color: var(--color-silver);
  line-height: 1.7;
}

.page-privacy__seal-links {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

abbr[title] {
  text-decoration: underline dotted;
  text-decoration-color: var(--color-gold-line);
  cursor: help;
}

@media (min-width: 640px) {
  .page-privacy__cover {
    height: 160px;
  }

  .page-privacy__section {
    grid-template-columns: 7rem 1fr;
    gap: 1.5rem;
  }

  .page-privacy__section-index {
    font-size: 4.25rem;
  }

  .page-privacy__contact-row {
    grid-template-columns: 11rem 1fr;
  }

  .page-privacy__toc-label {
    flex-basis: auto;
  }

  .page-privacy__seal {
    grid-template-columns: auto 1fr;
  }
}

@media (min-width: 1024px) {
  .page-privacy__cover {
    height: 200px;
  }

  .page-privacy__section {
    grid-template-columns: 10rem 1fr;
    gap: 2.5rem;
  }

  .page-privacy__section-index {
    text-align: right;
    font-size: 5.5rem;
  }

  .page-privacy__section-content h2 {
    border-top: 0;
    padding-top: 0.15rem;
    padding-left: 1rem;
    border-left: 4px solid var(--color-gold);
  }

  .page-privacy__seal {
    grid-template-columns: auto 1fr auto;
    align-items: center;
    padding: 2rem 2.25rem;
  }

  .page-privacy__seal-links {
    grid-column: auto;
  }

  .page-privacy__toc {
    margin-bottom: calc(var(--privacy-gap) + 0.5rem);
  }
}