.page-privacy {
  --pp-rule: rgba(56, 242, 195, 0.16);
  --pp-rule-soft: rgba(143, 166, 180, 0.16);
  --pp-measure: 36em;
  padding-bottom: clamp(48px, 8vw, 110px);
}

/* ---------- 页首 ---------- */

.page-privacy .pp-hero {
  padding: clamp(18px, 3.5vw, 40px) 0 clamp(16px, 2.5vw, 26px);
}

.page-privacy .pp-hero h1 {
  font-family: var(--font-display);
  font-size: var(--step-4);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.05;
  color: var(--text);
  margin: 0.18em 0 0.4em;
  max-width: 10em;
}

.page-privacy .pp-hero__lede {
  max-width: 32em;
  margin: 0;
  color: var(--muted);
  font-size: var(--step-1);
  line-height: 1.72;
}

/* ---------- 顶部横幅 ---------- */

.page-privacy .pp-banner {
  position: relative;
  margin: clamp(18px, 3vw, 32px) 0 clamp(30px, 5vw, 64px);
  border-radius: var(--radius);
  overflow: hidden;
  background:
    radial-gradient(120% 90% at 12% 0%, rgba(56, 242, 195, 0.14), transparent 62%),
    var(--night);
}

.page-privacy .pp-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(4, 18, 31, 0) 42%, rgba(4, 18, 31, 0.82) 100%);
}

.page-privacy .pp-banner img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 7 / 3;
}

.page-privacy .pp-banner .media__cap {
  position: relative;
  z-index: 1;
  margin: 0;
  padding: 10px clamp(16px, 3vw, 28px) 16px;
  color: var(--muted);
  font-size: var(--step--1);
  line-height: 1.6;
}

/* ---------- 主体骨架 ---------- */

.page-privacy .pp-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 44px);
  align-items: start;
}

.page-privacy .pp-doc {
  min-width: 0;
}

/* ---------- 章节索引 ---------- */

.page-privacy .pp-index__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: 0.16em;
  color: var(--sand);
}

.page-privacy .pp-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
}

.page-privacy .pp-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 6px 13px;
  border: 1px solid var(--pp-rule-soft);
  border-radius: 999px;
  color: var(--muted);
  font-size: var(--step--1);
  text-decoration: none;
  transition: color 180ms ease, border-color 180ms ease, background-color 180ms ease;
}

.page-privacy .pp-index__link .mono {
  color: var(--sand);
  font-size: 0.85em;
}

.page-privacy .pp-index__link:hover,
.page-privacy .pp-index__link:focus-visible {
  color: var(--mint);
  border-color: var(--mint);
  background: rgba(56, 242, 195, 0.08);
  outline: none;
}

/* ---------- 导语段 ---------- */

.page-privacy .pp-intro {
  max-width: var(--pp-measure);
  margin: 0 0 clamp(14px, 2vw, 22px);
  color: var(--muted);
  font-size: var(--step-0);
  line-height: 1.8;
  padding-left: 2px;
  border-left: 2px solid var(--pp-rule);
  padding-block: 4px;
  padding-right: 6px;
}

/* ---------- 条款条目 ---------- */

.page-privacy .pp-item {
  border-top: 1px solid var(--pp-rule);
  padding: clamp(16px, 2.4vw, 28px) 0;
}

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

.page-privacy .pp-item__head {
  display: flex;
  align-items: baseline;
  gap: clamp(10px, 2vw, 18px);
  cursor: pointer;
  list-style: none;
  padding: 0;
}

.page-privacy .pp-item__head::-webkit-details-marker {
  display: none;
}

.page-privacy .pp-item__head::marker {
  content: "";
}

.page-privacy .pp-item__head:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 6px;
  border-radius: 4px;
}

.page-privacy .pp-item__head::after {
  content: "";
  flex: none;
  align-self: center;
  width: 9px;
  height: 9px;
  margin-left: auto;
  border-right: 2px solid var(--mint);
  border-bottom: 2px solid var(--mint);
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform 220ms ease;
}

.page-privacy .pp-item[open] .pp-item__head::after {
  transform: rotate(225deg) translate(-1px, -1px);
}

.page-privacy .pp-num {
  flex: none;
  display: inline-flex;
  flex-direction: column;
  color: var(--sand);
  font-size: var(--step--1);
  letter-spacing: 0.08em;
  padding-top: 0.42em;
}

.page-privacy .pp-num::after {
  content: "";
  display: block;
  width: 24px;
  height: 1px;
  margin-top: 8px;
  background: var(--sand);
  opacity: 0.75;
}

.page-privacy .pp-item__title {
  flex: 1 1 auto;
  margin: 0;
  font-family: var(--font-display);
  font-size: var(--step-2);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.32;
  color: var(--text);
}

/* ---------- 条目正文 ---------- */

.page-privacy .pp-item__body {
  padding-top: 14px;
}

.page-privacy .pp-item__body p {
  max-width: var(--pp-measure);
  margin: 0 0 1em;
  color: var(--text);
  font-size: var(--step-0);
  line-height: 1.8;
}

.page-privacy .pp-item__body p:last-child {
  margin-bottom: 0;
}

.page-privacy .pp-k {
  border-bottom: 1px solid var(--mint);
  padding-bottom: 1px;
}

.page-privacy .pp-list {
  list-style: none;
  margin: 0 0 1em;
  padding: 0;
  max-width: var(--pp-measure);
  display: grid;
  gap: 10px;
}

.page-privacy .pp-list li {
  position: relative;
  padding-left: 20px;
  color: var(--muted);
  font-size: var(--step-0);
  line-height: 1.75;
}

.page-privacy .pp-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.86em;
  width: 10px;
  height: 1px;
  background: var(--mint);
}

/* ---------- 本机存储示意 ---------- */

.page-privacy .pp-flow {
  list-style: none;
  margin: 22px 0;
  padding: 0;
  max-width: 34em;
  display: grid;
  gap: 10px;
}

.page-privacy .pp-flow__node {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 16px;
  border-radius: 14px;
  background: var(--lane);
  color: var(--text);
  font-size: var(--step--1);
  line-height: 1.6;
}

.page-privacy .pp-flow__node:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 28px;
  bottom: -10px;
  width: 1px;
  height: 10px;
  background: var(--mint);
  opacity: 0.55;
}

.page-privacy .pp-flow__node--term {
  background: linear-gradient(90deg, rgba(255, 122, 77, 0.16), rgba(10, 36, 56, 0.6));
}

.page-privacy .pp-flow__step {
  flex: none;
  color: var(--sand);
  font-size: 0.82em;
  letter-spacing: 0.08em;
}

.page-privacy .pp-flow__label {
  min-width: 0;
}

/* ---------- 留存与权限对照 ---------- */

.page-privacy .pp-facts {
  margin: 18px 0 22px;
  max-width: 46em;
  border-top: 1px solid var(--pp-rule-soft);
}

.page-privacy .pp-facts__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 12px 0;
  border-bottom: 1px solid var(--pp-rule-soft);
}

.page-privacy .pp-facts__key {
  color: var(--sand);
  font-size: var(--step--1);
  letter-spacing: 0.05em;
  font-weight: 600;
}

.page-privacy .pp-facts__val {
  margin: 0;
  color: var(--muted);
  font-size: var(--step--1);
  line-height: 1.7;
}

/* ---------- 页尾引导 ---------- */

.page-privacy .pp-foot {
  margin-top: clamp(30px, 5vw, 56px);
  padding: clamp(20px, 3vw, 32px);
  border-radius: var(--radius);
  background: linear-gradient(120deg, rgba(10, 36, 56, 0.95), rgba(20, 58, 78, 0.5));
}

.page-privacy .pp-foot__text {
  max-width: 34em;
  margin: 0 0 18px;
  color: var(--text);
  font-size: var(--step-0);
  line-height: 1.75;
}

.page-privacy .pp-foot__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 平板及以上 ---------- */

@media (min-width: 768px) {
  .page-privacy .pp-item__body {
    padding-left: 3.4em;
  }

  .page-privacy .pp-facts__row {
    grid-template-columns: 148px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }
}

/* ---------- 桌面端：左侧章节轨 ---------- */

@media (min-width: 1024px) {
  .page-privacy .pp-hero h1 {
    max-width: 8em;
  }

  .page-privacy .pp-shell {
    grid-template-columns: 196px minmax(0, 1fr);
    gap: clamp(36px, 5vw, 76px);
  }

  .page-privacy .pp-index {
    position: sticky;
    top: calc(var(--topbar-h) + 26px);
    align-self: start;
  }

  .page-privacy .pp-index__list {
    display: block;
  }

  .page-privacy .pp-index__list > li + li {
    margin-top: 2px;
  }

  .page-privacy .pp-index__link {
    display: flex;
    width: 100%;
    padding: 9px 0 9px 14px;
    border: 0;
    border-left: 2px solid var(--pp-rule-soft);
    border-radius: 0;
    background: none;
    font-size: var(--step--1);
  }

  .page-privacy .pp-index__link:hover,
  .page-privacy .pp-index__link:focus-visible {
    color: var(--mint);
    border-left-color: var(--mint);
    background: none;
  }

  .page-privacy .pp-item__body p,
  .page-privacy .pp-intro {
    font-size: var(--step-0);
  }
}

/* ---------- 动效降级 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-privacy .pp-index__link,
  .page-privacy .pp-item__head::after {
    transition: none;
  }
}
<<<END>>>