.page-privacy {
  --pv-rail-w: 264px;
  --pv-gap: clamp(1.5rem, 4vw, 3.25rem);
  background:
    radial-gradient(920px 460px at 84% -10%, rgba(198, 255, 61, .10), transparent 62%),
    radial-gradient(720px 420px at 4% 14%, rgba(30, 107, 82, .52), transparent 66%),
    var(--deep);
  color: var(--paper-86);
  font-family: var(--font-body);
  padding-block-end: clamp(2.6rem, 6vw, 4.6rem);
  overflow-x: clip;
}

.page-privacy .breadcrumb {
  padding-block: clamp(1rem, 2.4vw, 1.5rem) 0;
}

/* ---------- 首屏 ---------- */
.page-privacy .pv-hero {
  padding-block: clamp(1.1rem, 3vw, 1.8rem) clamp(1.8rem, 4vw, 3rem);
}

.page-privacy .pv-hero h1 {
  margin: .6rem 0 0;
  max-width: 21ch;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5.6vw, 3.4rem);
  font-weight: 900;
  letter-spacing: -.03em;
  line-height: 1.14;
  color: var(--paper);
}

.page-privacy .pv-hero__lede {
  margin: 1rem 0 0;
  max-width: 58ch;
  font-size: clamp(1rem, 2.2vw, 1.13rem);
  line-height: 1.82;
  color: var(--paper-70);
}

.page-privacy .pv-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem .6rem;
  margin: 1.15rem 0 0;
  padding: 0;
  list-style: none;
}

.page-privacy .pv-hero__meta li {
  padding: .34rem .8rem;
  border: 1px solid var(--line-lime);
  border-radius: 999px;
  background: rgba(198, 255, 61, .06);
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .06em;
  color: var(--lime-soft);
}

.page-privacy .pv-hero__media {
  margin-top: clamp(1.3rem, 3.4vw, 2.2rem);
  aspect-ratio: 16 / 9;
  border: 1px solid var(--glass-line);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: linear-gradient(152deg, var(--board), var(--ink));
}

.page-privacy .pv-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

@media (min-width: 768px) {
  .page-privacy .pv-hero__media { aspect-ratio: 16 / 6; }
}

/* ---------- 两栏阅读骨架 ---------- */
.page-privacy .pv-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pv-gap);
  align-items: start;
}

@media (min-width: 960px) {
  .page-privacy .pv-shell {
    grid-template-columns: var(--pv-rail-w) minmax(0, 1fr);
  }
  .page-privacy .pv-rail {
    position: sticky;
    top: 104px;
  }
}

/* ---------- 左侧章节索引 ---------- */
.page-privacy .pv-rail {
  padding: 1rem .95rem;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--glass-bg);
  backdrop-filter: blur(8px);
}

.page-privacy .pv-rail__label {
  margin: 0 0 .7rem;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--sage);
}

.page-privacy .pv-rail__list {
  display: grid;
  gap: .1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-privacy .pv-rail__link {
  display: flex;
  gap: .6rem;
  align-items: baseline;
  padding: .42rem .5rem;
  border-left: 2px solid transparent;
  border-radius: var(--r-xs);
  font-size: .9rem;
  line-height: 1.5;
  color: var(--paper-70);
  text-decoration: none;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-privacy .pv-rail__link span {
  font-family: var(--font-mono);
  font-size: .71rem;
  color: var(--sage);
}

.page-privacy .pv-rail__link:hover,
.page-privacy .pv-rail__link:focus-visible {
  background: rgba(198, 255, 61, .10);
  border-left-color: var(--lime);
  color: var(--paper);
}

.page-privacy .pv-rail__card {
  margin-top: .95rem;
  padding: .8rem .85rem;
  border: 1px solid var(--line-soft);
  border-radius: var(--r-sm);
  background: rgba(6, 31, 24, .58);
}

.page-privacy .pv-rail__card p {
  margin: 0;
  font-size: .8rem;
  line-height: 1.65;
  color: var(--paper-70);
  overflow-wrap: anywhere;
}

.page-privacy .pv-rail__card p + p {
  margin-top: .5rem;
}

.page-privacy .pv-rail__card a {
  color: var(--lime);
  font-family: var(--font-mono);
  font-size: .78rem;
  text-decoration: none;
  border-bottom: 1px solid var(--line-lime);
  transition: color var(--dur) var(--ease);
}

.page-privacy .pv-rail__card a:hover {
  color: var(--lime-soft);
}

/* ---------- 正文折叠章节 ---------- */
.page-privacy .pv-body {
  min-width: 0;
}

.page-privacy .pv-item {
  border-top: 1px solid var(--line);
  padding-block: clamp(1rem, 2.6vw, 1.5rem);
}

.page-privacy .pv-item:last-of-type {
  border-bottom: 1px solid var(--line);
}

.page-privacy .pv-item > summary {
  display: flex;
  align-items: center;
  gap: .8rem;
  padding: .12rem .1rem;
  list-style: none;
  cursor: pointer;
  border-radius: var(--r-xs);
}

.page-privacy .pv-item > summary::-webkit-details-marker {
  display: none;
}

.page-privacy .pv-item > summary:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}

.page-privacy .pv-num {
  flex: none;
  font-family: var(--font-mono);
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--lime);
}

.page-privacy .pv-item__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.06rem, 2.4vw, 1.36rem);
  font-weight: 900;
  letter-spacing: -.02em;
  line-height: 1.4;
  color: var(--paper);
  transition: color var(--dur) var(--ease);
}

.page-privacy .pv-item > summary:hover .pv-item__title {
  color: var(--lime);
}

.page-privacy .pv-toggle {
  position: relative;
  flex: none;
  width: 26px;
  height: 26px;
  margin-left: auto;
  border: 1px solid var(--line-lime);
  border-radius: 50%;
  background: rgba(198, 255, 61, .07);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-privacy .pv-item > summary:hover .pv-toggle {
  background: rgba(198, 255, 61, .18);
}

.page-privacy .pv-toggle::before,
.page-privacy .pv-toggle::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  background: var(--lime);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.page-privacy .pv-toggle::before {
  width: 11px;
  height: 2px;
  transform: translate(-50%, -50%);
}

.page-privacy .pv-toggle::after {
  width: 2px;
  height: 11px;
  transform: translate(-50%, -50%);
}

.page-privacy .pv-item[open] .pv-toggle::after {
  transform: translate(-50%, -50%) scaleY(0);
  opacity: 0;
}

.page-privacy .pv-item__body {
  padding: .9rem 0 0 2.05rem;
}

@media (max-width: 640px) {
  .page-privacy .pv-item__body {
    padding-left: 0;
  }
}

.page-privacy .pv-item__body p {
  margin: .7rem 0 0;
  max-width: 66ch;
  font-size: .97rem;
  line-height: 1.85;
  color: var(--paper-70);
}

.page-privacy .pv-item__body p:first-child {
  margin-top: 0;
}

.page-privacy .pv-list {
  display: grid;
  gap: .55rem;
  margin: .8rem 0 0;
  padding: 0;
  list-style: none;
  max-width: 68ch;
}

.page-privacy .pv-list li {
  position: relative;
  padding-left: 1.1rem;
  font-size: .97rem;
  line-height: 1.8;
  color: var(--paper-70);
}

.page-privacy .pv-list li::before {
  content: "";
  position: absolute;
  top: .68em;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--lime);
}

.page-privacy .pv-list--orange li::before {
  background: var(--orange);
}

.page-privacy .pv-list strong {
  color: var(--paper);
  font-weight: 700;
}

.page-privacy .pv-hl {
  margin-top: 1rem;
  padding: .85rem 1rem;
  border-left: 3px solid var(--lime);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  background: var(--glass-bg);
  font-size: .94rem;
  line-height: 1.78;
  color: var(--paper-86);
  max-width: 66ch;
}

.page-privacy .pv-hl strong {
  color: var(--lime);
  font-weight: 700;
}

.page-privacy .pv-inline-link {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid var(--line-lime);
  overflow-wrap: anywhere;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-privacy .pv-inline-link:hover,
.page-privacy .pv-inline-link:focus-visible {
  color: var(--lime-soft);
  border-bottom-color: var(--lime-soft);
}

/* ---------- 数据流向示意 ---------- */
.page-privacy .pv-flow {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: .45rem;
  margin-top: 1.15rem;
  max-width: 68ch;
}

@media (min-width: 720px) {
  .page-privacy .pv-flow {
    grid-template-columns: minmax(0, 1fr) 54px minmax(0, 1fr) 54px minmax(0, 1fr);
    align-items: center;
    gap: .4rem;
  }
}

.page-privacy .pv-flow__node {
  display: grid;
  gap: .18rem;
  padding: .72rem .85rem;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: rgba(6, 31, 24, .48);
}

.page-privacy .pv-flow__k {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--sage);
}

.page-privacy .pv-flow__v {
  font-size: .9rem;
  font-weight: 700;
  color: var(--paper);
}

.page-privacy .pv-flow__arrow {
  position: relative;
  display: block;
  height: 16px;
}

.page-privacy .pv-flow__arrow::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 2%;
  right: 14%;
  height: 1px;
  background: var(--line-lime);
}

.page-privacy .pv-flow__arrow::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 12%;
  width: 7px;
  height: 7px;
  border-top: 1px solid var(--orange);
  border-right: 1px solid var(--orange);
  transform: translateY(-50%) rotate(45deg);
}

@media (max-width: 719px) {
  .page-privacy .pv-flow__arrow {
    height: 18px;
  }
  .page-privacy .pv-flow__arrow::before {
    top: 6%;
    bottom: 6%;
    left: 1.05rem;
    right: auto;
    width: 1px;
    height: auto;
  }
  .page-privacy .pv-flow__arrow::after {
    top: auto;
    bottom: 2px;
    left: calc(1.05rem - 3.5px);
    right: auto;
    transform: rotate(135deg);
  }
}

/* ---------- 页尾延伸阅读 ---------- */
.page-privacy .pv-foot {
  margin-top: clamp(2rem, 5vw, 3.4rem);
  padding-top: clamp(1.4rem, 3vw, 2rem);
  border-top: 1px solid var(--line);
}

.page-privacy .pv-foot__title {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2.8vw, 1.5rem);
  font-weight: 900;
  letter-spacing: -.02em;
  color: var(--paper);
}

.page-privacy .pv-foot__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: .7rem;
}

@media (min-width: 720px) {
  .page-privacy .pv-foot__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-privacy .pv-foot__card {
  display: grid;
  gap: .35rem;
  padding: 1rem 1.05rem;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: rgba(17, 79, 59, .34);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-privacy .pv-foot__card:hover,
.page-privacy .pv-foot__card:focus-visible {
  border-color: var(--line-lime);
  background: rgba(30, 107, 82, .5);
  transform: translateY(-2px);
}

.page-privacy .pv-foot__kicker {
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--lime);
}

.page-privacy .pv-foot__text {
  font-size: .9rem;
  line-height: 1.7;
  color: var(--paper-70);
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-privacy .pv-rail__link,
  .page-privacy .pv-toggle,
  .page-privacy .pv-toggle::before,
  .page-privacy .pv-toggle::after,
  .page-privacy .pv-foot__card,
  .page-privacy .pv-inline-link,
  .page-privacy .pv-item__title {
    transition: none;
  }
  .page-privacy .pv-foot__card:hover,
  .page-privacy .pv-foot__card:focus-visible {
    transform: none;
  }
}

/* ---------- 打印：只留正文 ---------- */
@media print {
  .page-privacy {
    background: #fff;
    color: #1a1a1a;
  }
  .page-privacy .pv-rail,
  .page-privacy .pv-hero__media,
  .page-privacy .pv-hero__meta,
  .page-privacy .pv-toggle,
  .page-privacy .pv-foot {
    display: none;
  }
  .page-privacy .pv-shell {
    display: block;
  }
  .page-privacy .pv-item,
  .page-privacy .pv-item:last-of-type {
    border-color: #bbb;
    break-inside: avoid;
  }
  .page-privacy .pv-hero h1,
  .page-privacy .pv-item__title,
  .page-privacy .pv-list strong,
  .page-privacy .pv-hl strong {
    color: #111;
  }
  .page-privacy .pv-hero__lede,
  .page-privacy .pv-item__body p,
  .page-privacy .pv-list li,
  .page-privacy .pv-hl {
    color: #333;
  }
  .page-privacy .pv-item__body {
    padding-left: 0;
  }
}
<<<END>>>