.page-privacy {
  --pp-accent: var(--cyan-450);
  --pp-rail-w: 236px;
  position: relative;
  background-color: var(--ink-950);
  background-image:
    linear-gradient(rgba(147, 169, 191, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(147, 169, 191, .05) 1px, transparent 1px);
  background-size: 64px 64px, 64px 64px;
  color: var(--paper-050);
  overflow-x: hidden;
  overflow-y: visible;
}

/* ---------- 首屏 ---------- */
.page-privacy .pp-hero {
  position: relative;
  border-bottom: 1px solid var(--hair);
}

.page-privacy .pp-hero__frame {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: clamp(420px, 58vw, 600px);
  overflow: hidden;
  background: linear-gradient(160deg, var(--ink-850) 0%, var(--ink-950) 72%);
}

.page-privacy .pp-hero__img {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  object-position: center 42%;
  opacity: .4;
}

.page-privacy .pp-hero__veil {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(110% 78% at 84% 8%, rgba(55, 225, 240, .2) 0%, rgba(55, 225, 240, 0) 56%),
    linear-gradient(180deg, rgba(5, 10, 19, .58) 0%, rgba(5, 10, 19, .88) 64%, var(--ink-950) 100%);
}

.page-privacy .pp-hero__body {
  position: relative;
  z-index: 1;
  width: 100%;
  padding: clamp(112px, 14vw, 176px) 0 clamp(38px, 5vw, 66px);
}

.page-privacy .pp-crumb {
  margin: 0 0 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--mist-400);
}

.page-privacy .pp-crumb__link {
  color: var(--cyan-450);
  text-decoration: none;
}

.page-privacy .pp-crumb__link:hover,
.page-privacy .pp-crumb__link:focus-visible {
  text-decoration: underline;
}

.page-privacy .pp-hero__eyebrow {
  margin: 0;
  color: var(--cyan-450);
}

.page-privacy .pp-hero__title {
  margin: 14px 0 0;
  font-size: clamp(42px, 9vw, 92px);
  line-height: 1.02;
  letter-spacing: -.03em;
}

.page-privacy .pp-hero__lead {
  max-width: 54ch;
  margin: 22px 0 0;
  font-size: clamp(16px, 1.5vw, 18px);
  line-height: 1.85;
  color: rgba(237, 244, 250, .86);
}

.page-privacy .pp-hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

/* ---------- 正文布局 ---------- */
.page-privacy .pp-doc {
  padding: clamp(36px, 5vw, 68px) 0 clamp(52px, 7vw, 92px);
}

.page-privacy .pp-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 40px);
  align-items: start;
}

.page-privacy .pp-aside,
.page-privacy .pp-body {
  min-width: 0;
}

.page-privacy .pp-body {
  max-width: 100%;
}

/* ---------- 窄屏折叠目录 ---------- */
.page-privacy .pp-toc {
  border: 1px solid var(--hair);
  border-radius: var(--radius-m);
  background: var(--panel);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.page-privacy .pp-toc__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--mist-400);
}

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

.page-privacy .pp-toc__summary::after {
  content: "+";
  font-size: 16px;
  line-height: 1;
  color: var(--cyan-450);
}

.page-privacy .pp-toc[open] .pp-toc__summary::after {
  content: "\2212";
}

.page-privacy .pp-toc__list {
  margin: 0;
  padding: 8px 10px 14px;
  list-style: none;
  border-top: 1px solid var(--hair);
}

.page-privacy .pp-toc__link {
  display: flex;
  gap: 10px;
  padding: 10px 10px;
  border-radius: var(--radius-s);
  color: rgba(237, 244, 250, .84);
  text-decoration: none;
  font-size: 15px;
  line-height: 1.5;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-privacy .pp-toc__link:hover,
.page-privacy .pp-toc__link:focus-visible {
  background: rgba(55, 225, 240, .1);
  color: var(--paper-050);
}

.page-privacy .pp-toc__num {
  flex: none;
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--cyan-450);
}

/* ---------- 宽屏右侧刻度 ---------- */
.page-privacy .pp-rail {
  display: none;
}

.page-privacy .pp-rail__label {
  margin: 0 0 14px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--mist-400);
}

.page-privacy .pp-rail__list {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-privacy .pp-rail__link {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 9px 12px;
  border-radius: 0 var(--radius-s) var(--radius-s) 0;
  color: var(--mist-400);
  text-decoration: none;
  font-size: 14px;
  line-height: 1.55;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-privacy .pp-rail__link:hover,
.page-privacy .pp-rail__link:focus-visible {
  color: var(--paper-050);
  background: linear-gradient(90deg, rgba(55, 225, 240, .14), rgba(55, 225, 240, 0));
}

.page-privacy .pp-rail__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--cyan-450);
  opacity: .8;
}

/* ---------- 章节 ---------- */
.page-privacy .pp-sec {
  scroll-margin-top: 120px;
  padding: clamp(30px, 4vw, 46px) 0;
  border-top: 1px solid var(--hair);
}

.page-privacy .pp-sec:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-privacy .pp-sec__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 14px;
  margin: 0 0 20px;
}

.page-privacy .pp-sec__num {
  flex: none;
  padding: 3px 9px;
  border: 1px solid rgba(55, 225, 240, .36);
  border-radius: var(--radius-s);
  background: rgba(55, 225, 240, .07);
  color: var(--cyan-450);
  font-size: 13px;
  letter-spacing: .14em;
  line-height: 1.4;
}

.page-privacy .pp-sec__title {
  margin: 0;
  font-size: clamp(23px, 3.2vw, 32px);
  line-height: 1.25;
  letter-spacing: -.01em;
}

.page-privacy .pp-sec:target .pp-sec__title {
  color: var(--cyan-450);
}

.page-privacy .pp-sec__body {
  max-width: 68ch;
}

.page-privacy .pp-sec__body > p {
  margin: 0 0 16px;
  font-size: clamp(16px, 1.4vw, 17px);
  line-height: 1.85;
  color: rgba(237, 244, 250, .88);
}

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

.page-privacy .pp-sec:first-of-type .pp-sec__body > p:first-of-type::first-letter {
  float: left;
  margin: 8px 12px 0 0;
  padding: 0;
  font-family: var(--font-serif);
  font-size: 3.4em;
  line-height: .86;
  color: var(--cyan-450);
}

/* ---------- 定义列表 ---------- */
.page-privacy .pp-defs {
  margin: 26px 0 0;
  border-top: 1px solid var(--hair);
}

.page-privacy .pp-defs__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  padding: 20px 0;
  border-bottom: 1px solid var(--hair);
}

.page-privacy .pp-defs__term {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  letter-spacing: .06em;
  color: var(--cyan-450);
}

.page-privacy .pp-defs__desc {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(237, 244, 250, .84);
}

/* ---------- 用途清单 ---------- */
.page-privacy .pp-uses {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--hair);
  border-radius: var(--radius-m);
  background: var(--hair);
  overflow: hidden;
}

.page-privacy .pp-uses__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 16px;
  row-gap: 6px;
  padding: 20px;
  background: rgba(11, 21, 38, .92);
  transition: background var(--dur) var(--ease);
}

.page-privacy .pp-uses__item:hover {
  background: rgba(18, 34, 56, .95);
}

.page-privacy .pp-uses__tag {
  grid-column: 1;
  grid-row: 1 / span 2;
  padding-top: 3px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--cyan-450);
}

.page-privacy .pp-uses__title {
  grid-column: 2;
  grid-row: 1;
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: -.01em;
  color: var(--paper-050);
}

.page-privacy .pp-uses__text {
  grid-column: 2;
  grid-row: 2;
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(237, 244, 250, .8);
}

/* ---------- 保存期限 ---------- */
.page-privacy .pp-rt {
  margin: 24px 0 26px;
  border-top: 1px solid var(--hair);
}

.page-privacy .pp-rt__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 18px 0;
  border-bottom: 1px solid var(--hair);
}

.page-privacy .pp-rt__k {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--paper-050);
}

.page-privacy .pp-rt__v {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(237, 244, 250, .8);
}

.page-privacy .pp-rt__v .n28-mono {
  font-size: 14px;
  letter-spacing: .06em;
  color: var(--cyan-450);
}

/* ---------- 协作方提示块 ---------- */
.page-privacy .pp-callout {
  margin: 24px 0 0;
  padding: 22px 20px 24px;
  border: 1px solid rgba(31, 191, 167, .3);
  border-left-width: 3px;
  border-radius: var(--radius-m);
  background: linear-gradient(135deg, rgba(31, 191, 167, .1), rgba(11, 21, 38, .74) 62%);
}

.page-privacy .pp-callout__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--teal-500);
}

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

.page-privacy .pp-callout__list li {
  padding: 6px 13px;
  border: 1px solid var(--hair);
  border-radius: var(--radius-pill);
  background: rgba(5, 10, 19, .55);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: rgba(237, 244, 250, .88);
}

.page-privacy .pp-callout__foot {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(237, 244, 250, .8);
}

/* ---------- 你的选择 ---------- */
.page-privacy .pp-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-privacy .pp-actions__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding: 18px 20px;
  border: 1px solid var(--hair);
  border-radius: var(--radius-m);
  background: rgba(11, 21, 38, .68);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-privacy .pp-actions__item:hover {
  border-color: rgba(255, 106, 31, .45);
  background: rgba(18, 34, 56, .86);
}

.page-privacy .pp-actions__num {
  padding-top: 3px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--orange-500);
}

.page-privacy .pp-actions__title {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper-050);
}

.page-privacy .pp-actions__text p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(237, 244, 250, .8);
}

/* ---------- 后续入口 ---------- */
.page-privacy .pp-next {
  padding: clamp(40px, 6vw, 72px) 0 clamp(56px, 8vw, 90px);
  border-top: 1px solid var(--hair);
  background: linear-gradient(180deg, rgba(11, 21, 38, 0) 0%, rgba(11, 21, 38, .72) 100%);
}

.page-privacy .pp-next__title {
  margin: 0;
  font-size: clamp(20px, 2.6vw, 26px);
  letter-spacing: -.01em;
}

.page-privacy .pp-next__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: 24px;
}

.page-privacy .pp-next__link {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px;
  border: 1px solid var(--hair);
  border-radius: var(--radius-m);
  background: rgba(11, 21, 38, .72);
  color: var(--paper-050);
  text-decoration: none;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-privacy .pp-next__link:hover,
.page-privacy .pp-next__link:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(55, 225, 240, .5);
  background: rgba(18, 34, 56, .92);
}

.page-privacy .pp-next__num {
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--cyan-450);
}

.page-privacy .pp-next__label {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
}

.page-privacy .pp-next__desc {
  font-size: 14px;
  line-height: 1.75;
  color: rgba(237, 244, 250, .76);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-privacy .pp-defs__row {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 28px;
    align-items: baseline;
  }

  .page-privacy .pp-rt__row {
    grid-template-columns: 180px minmax(0, 1fr);
    gap: 28px;
    align-items: baseline;
  }

  .page-privacy .pp-section-grid {
    display: block;
  }
}

@media (min-width: 760px) {
  .page-privacy .pp-next__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .page-privacy .pp-layout {
    grid-template-columns: minmax(0, 1fr) var(--pp-rail-w);
    column-gap: clamp(40px, 5vw, 72px);
  }

  .page-privacy .pp-body {
    grid-column: 1;
    grid-row: 1;
  }

  .page-privacy .pp-aside {
    grid-column: 2;
    grid-row: 1;
    position: sticky;
    top: 104px;
    align-self: start;
  }

  .page-privacy .pp-toc {
    display: none;
  }

  .page-privacy .pp-rail {
    display: block;
    padding-left: 22px;
    border-left: 1px solid var(--hair);
  }

  .page-privacy .pp-uses {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .pp-next__link:hover,
  .page-privacy .pp-next__link:focus-visible {
    transform: none;
  }
}