.page-privacy {
  --pv-toc-w: 244px;
  --pv-radius-cut: 34px;
  position: relative;
  background: var(--paper);
  color: var(--ink);
  overflow-x: clip;
}

/* ---------- 顶部滚动进度 ---------- */
.page-privacy .pv-progress {
  position: fixed;
  inset: 0 0 auto 0;
  height: 3px;
  z-index: 70;
  pointer-events: none;
}
.page-privacy .pv-progress__bar {
  display: block;
  height: 100%;
  transform-origin: 0 50%;
  transform: scaleX(0);
  background: linear-gradient(90deg, var(--gold), var(--crimson));
}
@supports (animation-timeline: scroll()) {
  .page-privacy .pv-progress__bar {
    animation: pv-grow linear both;
    animation-timeline: scroll(root);
  }
}
@keyframes pv-grow {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

/* ---------- 首屏 ---------- */
.page-privacy .pv-hero {
  position: relative;
  overflow: hidden;
  color: var(--paper);
  padding-top: calc(var(--header-h) + 2.25rem);
  background:
    linear-gradient(155deg, var(--indigo) 0%, var(--indigo-lift) 52%, var(--crimson-deep) 100%);
}
.page-privacy .pv-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.18;
  background-image:
    repeating-linear-gradient(45deg, rgba(201, 162, 39, 0.6) 0 1px, transparent 1px 15px),
    repeating-linear-gradient(-45deg, rgba(201, 162, 39, 0.35) 0 1px, transparent 1px 24px);
}
.page-privacy .pv-hero__inner {
  position: relative;
  z-index: 1;
  padding-bottom: 1.75rem;
}
.page-privacy .pv-hero .breadcrumbs a,
.page-privacy .pv-hero .breadcrumbs li {
  color: rgba(247, 243, 234, 0.78);
}
.page-privacy .pv-hero .eyebrow {
  color: var(--gold);
}
.page-privacy .pv-hero__title {
  margin: 0.7rem 0 1rem;
  max-width: 22ch;
  font-size: clamp(2rem, 6.6vw, 3.8rem);
  line-height: 1.14;
  letter-spacing: 0.01em;
  color: var(--paper);
}
.page-privacy .pv-hero__lede {
  max-width: 44ch;
  color: rgba(247, 243, 234, 0.86);
}
.page-privacy .pv-facts {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.5rem;
  margin: 1.7rem 0 0;
  padding: 0;
  font-family: var(--mono);
  font-size: 0.84rem;
  color: rgba(247, 243, 234, 0.92);
}
.page-privacy .pv-facts li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.page-privacy .pv-band {
  margin: 0;
  border-radius: 0;
}
.page-privacy .pv-band img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 主体两栏 ---------- */
.page-privacy .pv-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.75rem;
  padding-block: 2.25rem 3.5rem;
}
.page-privacy .pv-toc__title {
  margin: 0 0 0.7rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--slate);
}
.page-privacy .pv-toc__list {
  list-style: none;
  display: flex;
  gap: 0.5rem;
  margin: 0 0 1.1rem;
  padding: 0 0 0.35rem;
  overflow-x: auto;
  scrollbar-width: thin;
}
.page-privacy .pv-toc__list a {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  white-space: nowrap;
  padding: 0.45rem 0.85rem;
  border-radius: 999px;
  background: var(--cloud);
  border: 1px solid var(--line);
  font-size: 0.84rem;
  color: var(--slate);
  text-decoration: none;
  transition: color 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}
.page-privacy .pv-toc__list a:hover,
.page-privacy .pv-toc__list a:focus-visible {
  color: var(--crimson);
  border-color: var(--gold);
}
.page-privacy .pv-toc__num {
  color: var(--gold-ink);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
}
.page-privacy .pv-totop {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.42rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--cloud);
  color: var(--gold-ink);
  font-size: 0.78rem;
  font-weight: 600;
  text-decoration: none;
  box-shadow: var(--shadow-sm);
}
.page-privacy .pv-totop:hover,
.page-privacy .pv-totop:focus-visible {
  border-color: var(--gold);
  color: var(--crimson);
}

/* 当前节高亮 */
.page-privacy:has(#sec-info:target) .pv-toc__list a[href="#sec-info"],
.page-privacy:has(#sec-purpose:target) .pv-toc__list a[href="#sec-purpose"],
.page-privacy:has(#sec-retention:target) .pv-toc__list a[href="#sec-retention"],
.page-privacy:has(#sec-security:target) .pv-toc__list a[href="#sec-security"],
.page-privacy:has(#sec-rights:target) .pv-toc__list a[href="#sec-rights"],
.page-privacy:has(#sec-update:target) .pv-toc__list a[href="#sec-update"] {
  color: var(--crimson);
  border-color: var(--gold);
  background: rgba(201, 162, 39, 0.14);
  font-weight: 600;
}

/* ---------- 章节 ---------- */
.page-privacy .pv-body {
  min-width: 0;
}
.page-privacy .pv-sec {
  position: relative;
  padding: 2rem 0 2.1rem;
  border-top: 1px dashed var(--line);
  scroll-margin-top: calc(var(--header-h) + 1.25rem);
}
.page-privacy .pv-sec:first-child {
  border-top: 0;
  padding-top: 0.25rem;
}
.page-privacy .pv-sec__no {
  position: absolute;
  top: 1.6rem;
  right: 0;
  font-size: clamp(1.9rem, 8vw, 3.1rem);
  line-height: 1;
  color: var(--gold);
  opacity: 0.24;
  letter-spacing: 0.04em;
  pointer-events: none;
}
.page-privacy .pv-sec:first-child .pv-sec__no {
  top: 0;
}
.page-privacy .pv-sec__tag {
  display: inline-block;
  margin: 0 0 0.5rem;
  padding-left: 0.6rem;
  border-left: 3px solid var(--gold);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--gold-ink);
}
.page-privacy .pv-sec__title {
  margin: 0 0 0.65rem;
  font-family: var(--serif);
  font-size: clamp(1.32rem, 3.6vw, 1.85rem);
  line-height: 1.32;
  color: var(--ink);
}
.page-privacy .pv-sec__lead {
  margin: 0 0 1.2rem;
  max-width: 38ch;
  color: var(--slate);
  line-height: 1.75;
}

.page-privacy .pv-list {
  margin: 0;
  display: grid;
  gap: 0.15rem;
}
.page-privacy .pv-list dt {
  padding-top: 0.85rem;
  font-size: 0.94rem;
  font-weight: 700;
  color: var(--crimson);
}
.page-privacy .pv-list dd {
  margin: 0;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--line);
  font-size: 0.94rem;
  line-height: 1.78;
  color: var(--ink-soft);
}
.page-privacy .pv-list dd:last-of-type {
  border-bottom: 0;
  padding-bottom: 0.2rem;
}

/* ---------- 折叠面板 ---------- */
.page-privacy .pv-fold {
  margin-top: 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--cloud);
  overflow: hidden;
}
.page-privacy .pv-fold-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
  padding: 0.95rem 1.05rem;
  border: 0;
  background: transparent;
  font: inherit;
  font-weight: 600;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
}
.page-privacy .pv-fold-trigger:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: -2px;
}
.page-privacy .pv-fold-mark {
  flex: none;
  width: 0.62rem;
  height: 0.62rem;
  border-right: 2px solid var(--gold-ink);
  border-bottom: 2px solid var(--gold-ink);
  transform: rotate(45deg);
  transition: transform 0.2s ease;
}
.page-privacy .pv-fold-trigger[aria-expanded="false"] .pv-fold-mark {
  transform: rotate(-45deg);
}
.page-privacy .pv-fold-panel {
  padding: 0 1.05rem 1.1rem;
}
.page-privacy .pv-rev {
  list-style: none;
  display: grid;
  gap: 0.9rem;
  margin: 0;
  padding: 0;
}
.page-privacy .pv-rev li {
  display: grid;
  gap: 0.25rem;
  padding-left: 0.9rem;
  border-left: 2px solid var(--gold);
}
.page-privacy .pv-rev__when {
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--gold-ink);
}
.page-privacy .pv-rev__what {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--ink-soft);
}

/* ---------- 结尾行动区 ---------- */
.page-privacy .pv-cta {
  margin-top: 2.75rem;
  padding: 2rem 1.35rem;
  color: var(--paper);
  background: linear-gradient(135deg, var(--crimson) 0%, var(--crimson-deep) 100%);
  clip-path: polygon(
    0 0,
    calc(100% - var(--pv-radius-cut)) 0,
    100% var(--pv-radius-cut),
    100% 100%,
    var(--pv-radius-cut) 100%,
    0 calc(100% - var(--pv-radius-cut))
  );
}
.page-privacy .pv-cta__title {
  margin: 0 0 0.6rem;
  font-family: var(--serif);
  font-size: clamp(1.3rem, 4vw, 1.8rem);
  color: var(--paper);
}
.page-privacy .pv-cta__text {
  margin: 0 0 1.4rem;
  max-width: 48ch;
  line-height: 1.78;
  color: rgba(247, 243, 234, 0.9);
}
.page-privacy .pv-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}
.page-privacy .pv-cta .btn--ghost {
  color: var(--paper);
  border-color: rgba(247, 243, 234, 0.55);
}

/* ---------- 移动端返回顶部 ---------- */
@media (max-width: 959px) {
  .page-privacy .pv-totop {
    position: fixed;
    right: 1rem;
    bottom: 1rem;
    z-index: 65;
    opacity: 1;
  }
  @supports (animation-timeline: scroll()) {
    .page-privacy .pv-totop {
      animation: pv-totop-in linear both;
      animation-timeline: scroll(root);
      animation-range: 0 25%;
    }
  }
}
@keyframes pv-totop-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- 桌面：常驻目录 + 正文 ---------- */
@media (min-width: 960px) {
  .page-privacy .pv-layout {
    grid-template-columns: var(--pv-toc-w) minmax(0, 1fr);
    gap: 3rem;
    padding-block: 3rem 4.5rem;
  }
  .page-privacy .pv-toc {
    position: sticky;
    top: calc(var(--header-h) + 1rem);
    align-self: start;
  }
  .page-privacy .pv-toc__list {
    display: block;
    overflow: visible;
    margin-bottom: 1.4rem;
    padding-bottom: 0;
    border-left: 2px solid var(--line);
  }
  .page-privacy .pv-toc__list li + li {
    margin-top: 0.15rem;
  }
  .page-privacy .pv-toc__list a {
    white-space: normal;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    background: transparent;
    margin-left: -2px;
    padding: 0.5rem 0.4rem 0.5rem 0.85rem;
  }
  .page-privacy .pv-toc__list a:hover,
  .page-privacy .pv-toc__list a:focus-visible {
    background: rgba(201, 162, 39, 0.1);
    border-color: var(--gold);
  }
  .page-privacy:has(#sec-info:target) .pv-toc__list a[href="#sec-info"],
  .page-privacy:has(#sec-purpose:target) .pv-toc__list a[href="#sec-purpose"],
  .page-privacy:has(#sec-retention:target) .pv-toc__list a[href="#sec-retention"],
  .page-privacy:has(#sec-security:target) .pv-toc__list a[href="#sec-security"],
  .page-privacy:has(#sec-rights:target) .pv-toc__list a[href="#sec-rights"],
  .page-privacy:has(#sec-update:target) .pv-toc__list a[href="#sec-update"] {
    border-left-color: var(--gold);
    border-radius: 0;
    background: linear-gradient(90deg, rgba(201, 162, 39, 0.16), transparent);
  }
  .page-privacy .pv-sec__lead {
    font-size: 1.02rem;
  }
}

@media (min-width: 720px) {
  .page-privacy .pv-list {
    grid-template-columns: 10.5em minmax(0, 1fr);
    column-gap: 1.75rem;
  }
  .page-privacy .pv-list dt {
    padding-top: 0.8rem;
  }
  .page-privacy .pv-list dd {
    padding-bottom: 0.95rem;
  }
  .page-privacy .pv-cta {
    padding: 2.5rem 2.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .pv-progress__bar,
  .page-privacy .pv-totop {
    animation: none !important;
    transform: none !important;
    opacity: 1;
  }
  .page-privacy .pv-progress__bar {
    transform: scaleX(0) !important;
  }
  .page-privacy .pv-fold-mark {
    transition: none;
  }
}
</style>