.page-privacy {
  --pv-measure: 720px;
  --pv-hair: rgba(43, 58, 85, 0.26);
  --pv-lh: 1.9;
  padding-bottom: 104px;
}

.page-privacy img {
  max-width: 100%;
  height: auto;
}

.page-privacy .crumbs {
  padding-top: 26px;
}

/* ---------- 首屏 ---------- */
.page-privacy .pv-hero {
  max-width: var(--pv-measure);
  padding: 30px 0 34px;
}

.page-privacy .pv-hero__meta {
  margin: 0 0 16px;
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
  color: var(--c-sand);
}

.page-privacy .pv-hero__title {
  margin: 0 0 20px;
  font-size: clamp(40px, 8vw, 72px);
  font-weight: 900;
  line-height: 1.04;
  letter-spacing: -0.01em;
  color: var(--c-paper);
}

.page-privacy .pv-hero__lede {
  margin: 0;
  max-width: 58ch;
  font-size: var(--fs-16);
  line-height: var(--pv-lh);
  color: var(--c-silver);
}

/* ---------- 氛围图层 ---------- */
.page-privacy .pv-atmos {
  margin: 0;
  border-top: var(--haar);
  border-bottom: var(--haar);
  overflow: hidden;
}

.page-privacy .pv-atmos img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 6;
  object-fit: cover;
  opacity: 0.42;
}

.page-privacy .pv-atmos__cap {
  padding: 9px 0 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.04em;
  color: var(--c-silver-dim);
}

/* ---------- 左轴 + 正文 分栏 ---------- */
.page-privacy .pv-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 34px;
  margin-top: 56px;
}

.page-privacy .pv-rail {
  position: relative;
  padding-left: 18px;
}

.page-privacy .pv-rail::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 1px;
  background: repeating-linear-gradient(
    to bottom,
    var(--c-rock-line) 0 7px,
    transparent 7px 14px
  );
}

.page-privacy .pv-rail__label {
  margin: 0 0 14px;
  font-size: var(--fs-12);
  letter-spacing: 0.1em;
  color: var(--c-silver-dim);
}

.page-privacy .pv-axis {
  display: block;
}

.page-privacy .pv-axis__item {
  display: block;
  padding: 7px 0;
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  line-height: 1.5;
  color: var(--c-silver-dim);
  text-decoration: none;
  transition: color var(--dur-hover) var(--ease);
}

.page-privacy .pv-axis__item:hover,
.page-privacy .pv-axis__item:focus-visible {
  color: var(--c-paper);
}

.page-privacy .pv-axis__item.is-active {
  color: var(--c-sand);
}

.page-privacy .pv-rail__track {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 1px;
  display: none;
}

.page-privacy .pv-rail__fill {
  position: absolute;
  left: 0;
  top: 0;
  width: 1px;
  height: 100%;
  background: linear-gradient(180deg, var(--c-sand), var(--c-poplar));
  transform: scaleY(0);
  transform-origin: top center;
}

/* ---------- 章节 ---------- */
.page-privacy .pv-body {
  max-width: var(--pv-measure);
  min-width: 0;
}

.page-privacy .pv-chapter {
  padding: 42px 0 6px;
  scroll-margin-top: 96px;
}

.page-privacy .pv-chapter + .pv-chapter {
  border-top: var(--haar);
}

.page-privacy .pv-chapter__head {
  display: flex;
  align-items: baseline;
  gap: 18px;
  margin: 0 0 20px;
}

.page-privacy .pv-chapter__num {
  flex: none;
  font-size: clamp(36px, 6vw, 52px);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.02em;
  color: var(--c-sand);
}

.page-privacy .pv-chapter__title {
  margin: 0;
  font-size: var(--fs-20);
  font-weight: 900;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--c-paper);
}

.page-privacy .pv-prose {
  max-width: var(--pv-measure);
  font-size: var(--fs-16);
  line-height: var(--pv-lh);
  color: var(--c-silver);
}

.page-privacy .pv-prose p {
  margin: 0 0 18px;
}

.page-privacy .pv-prose p:last-child {
  margin-bottom: 0;
}

.page-privacy .pv-prose a {
  color: var(--c-poplar);
  text-decoration: none;
  border-bottom: 1px solid rgba(224, 118, 47, 0.5);
}

.page-privacy .pv-prose a:hover,
.page-privacy .pv-prose a:focus-visible {
  border-bottom-color: var(--c-poplar);
}

.page-privacy .pv-prose .mono {
  color: var(--c-paper);
  font-size: 0.94em;
}

.page-privacy .pv-list {
  display: grid;
  gap: 14px;
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
}

.page-privacy .pv-list li {
  position: relative;
  padding-left: 28px;
  line-height: var(--pv-lh);
}

.page-privacy .pv-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-mono);
  color: var(--c-sand);
}

/* ---------- 米白反向区块：更新记录 ---------- */
.page-privacy .pv-log {
  margin-top: 80px;
  padding: clamp(28px, 5vw, 52px) clamp(20px, 4vw, 48px);
  background: var(--c-paper);
  color: var(--c-night-deep);
}

.page-privacy .pv-log__title {
  margin: 0 0 10px;
  font-size: var(--fs-20);
  font-weight: 900;
  letter-spacing: -0.01em;
}

.page-privacy .pv-log__note {
  margin: 0 0 24px;
  font-size: var(--fs-14);
  line-height: 1.7;
  color: var(--c-rock-line);
}

.page-privacy .pv-log__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-privacy .pv-log__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 20px;
  padding: 15px 0;
  border-top: 1px solid var(--pv-hair);
}

.page-privacy .pv-log__row:last-child {
  border-bottom: 1px solid var(--pv-hair);
}

.page-privacy .pv-log__ver {
  flex: none;
  min-width: 88px;
  font-size: var(--fs-14);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--c-clay);
}

.page-privacy .pv-log__txt {
  flex: 1 1 240px;
  font-size: var(--fs-14);
  line-height: 1.75;
  color: var(--c-rock-line);
}

/* ---------- 收尾 ---------- */
.page-privacy .pv-tail {
  margin: 38px 0 0;
  padding-top: 20px;
  border-top: var(--haar);
  font-family: var(--font-mono);
  font-size: var(--fs-12);
  letter-spacing: 0.04em;
  color: var(--c-silver-dim);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 900px) {
  .page-privacy .pv-layout {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 56px;
    margin-top: 84px;
  }

  .page-privacy .pv-rail {
    position: sticky;
    top: 96px;
    align-self: start;
  }

  .page-privacy .pv-rail__track {
    display: block;
  }
}

@supports (animation-timeline: scroll()) {
  @media (prefers-reduced-motion: no-preference) {
    .page-privacy .pv-rail__fill {
      animation: pv-rail-fill linear both;
      animation-timeline: scroll(root block);
    }
  }
}

@keyframes pv-rail-fill {
  from { transform: scaleY(0); }
  to { transform: scaleY(1); }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .pv-axis__item {
    transition: none;
  }

  .page-privacy .pv-rail__fill {
    animation: none;
  }
}