.page-privacy {
  --pp-side-w: 232px;
  --pp-gap: 56px;
  padding-bottom: 88px;
}

/* ---------- 首屏 ---------- */
.page-privacy .pp-hero {
  position: relative;
  padding-top: 36px;
}

.page-privacy .pp-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 22px 0 18px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--cyan);
  text-transform: uppercase;
}

.page-privacy .pp-eyebrow .mono {
  font-size: 12px;
  color: var(--cyan);
  letter-spacing: .1em;
}

.page-privacy h1 {
  margin: 0 0 22px;
  font-size: clamp(28px, 6.2vw, 52px);
  font-weight: 800;
  line-height: 1.14;
  letter-spacing: -.02em;
  max-width: 17em;
}

.page-privacy .lede {
  max-width: 34em;
  color: var(--mute);
  font-size: 15.5px;
  line-height: 1.78;
}

.page-privacy .pp-hero__visual {
  position: relative;
  margin-top: 38px;
}

.page-privacy .pp-hero__visual img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}

.page-privacy .pp-hero__visual::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 40%;
  border-radius: 0 0 var(--radius) var(--radius);
  background: linear-gradient(180deg, rgba(7, 28, 46, 0) 0%, rgba(7, 28, 46, .72) 100%);
  pointer-events: none;
}

/* ---------- 主体骨架 ---------- */
.page-privacy .pp-layout {
  display: flex;
  flex-direction: column;
  gap: 34px;
  padding-top: 52px;
}

.page-privacy .pp-main {
  min-width: 0;
  order: 1;
}

.page-privacy .pp-side {
  order: 0;
  padding-bottom: 26px;
  border-bottom: 1px solid var(--line);
}

.page-privacy .pp-side__title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mute);
  text-transform: uppercase;
}

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

.page-privacy .pp-side__list a {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 7px 13px;
  font-size: 13px;
  color: var(--mute);
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  transition: color .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease);
}

.page-privacy .pp-side__list a .mono {
  font-size: 11px;
  color: var(--cyan);
  letter-spacing: .06em;
}

.page-privacy .pp-side__list a:hover,
.page-privacy .pp-side__list a:focus-visible {
  color: var(--fog);
  border-color: var(--line-strong);
  background: rgba(34, 211, 238, .07);
}

.page-privacy .pp-side__note {
  margin: 16px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mute);
}

.page-privacy .pp-side__note a {
  color: var(--cyan-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(127, 231, 245, .35);
}

.page-privacy .pp-side__note a:hover {
  color: var(--fog);
}

/* ---------- 章节 ---------- */
.page-privacy .pp-sec {
  padding-top: 34px;
  margin-top: 34px;
  border-top: 1px solid var(--line);
  scroll-margin-top: 72px;
}

.page-privacy .pp-sec:first-of-type {
  padding-top: 0;
  margin-top: 0;
  border-top: 0;
}

.page-privacy .pp-sec__head {
  display: flex;
  align-items: baseline;
  gap: 13px;
  margin-bottom: 14px;
}

.page-privacy .pp-sec__num {
  flex: none;
  color: var(--cyan);
  font-size: 13px;
  letter-spacing: .1em;
}

.page-privacy .pp-sec h2 {
  margin: 0;
  font-size: clamp(20px, 3.8vw, 28px);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: -.01em;
}

.page-privacy .pp-sec .prose {
  max-width: 34em;
  color: var(--mute);
  font-size: 15px;
  line-height: 1.78;
}

/* ---------- 三类信息 ---------- */
.page-privacy .pp-cats {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin-top: 24px;
}

.page-privacy .pp-cat {
  position: relative;
  padding: 18px 18px 18px 22px;
  background: var(--deep-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-privacy .pp-cat::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 3px;
}

.page-privacy .pp-cat--cyan::before { background: var(--cyan); }
.page-privacy .pp-cat--amber::before { background: var(--amber); }
.page-privacy .pp-cat--coral::before { background: var(--coral); }

.page-privacy .pp-cat h3 {
  margin: 0 0 12px;
  font-size: 14.5px;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--fog);
}

.page-privacy .pp-cat ul {
  list-style: none;
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
}

.page-privacy .pp-cat li {
  position: relative;
  padding-left: 14px;
  font-size: 13.5px;
  line-height: 1.62;
  color: var(--mute);
}

.page-privacy .pp-cat li::before {
  content: "";
  position: absolute;
  top: .66em;
  left: 0;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--slate);
}

.page-privacy .pp-cat--cyan li::before { background: var(--cyan-soft); }
.page-privacy .pp-cat--amber li::before { background: var(--amber); }
.page-privacy .pp-cat--coral li::before { background: var(--coral); }

/* ---------- 用途清单 ---------- */
.page-privacy .pp-uses {
  list-style: none;
  display: grid;
  gap: 0;
  margin: 24px 0 0;
  padding: 0;
}

.page-privacy .pp-uses li {
  padding: 18px 0 18px 18px;
  border-left: 2px solid var(--line);
  transition: border-color .3s var(--ease);
}

.page-privacy .pp-uses li:hover {
  border-left-color: var(--cyan);
}

.page-privacy .pp-uses li + li {
  border-top: 1px solid var(--line);
}

.page-privacy .pp-uses h3 {
  margin: 0 0 7px;
  font-size: 15px;
  font-weight: 700;
  color: var(--fog);
}

.page-privacy .pp-uses p {
  margin: 0;
  max-width: 34em;
  font-size: 14px;
  line-height: 1.72;
  color: var(--mute);
}

/* ---------- 折叠细则 ---------- */
.page-privacy .pp-fold {
  margin-top: 22px;
  background: var(--deep-3);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-privacy .pp-fold summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 15px 18px;
  font-size: 14px;
  font-weight: 600;
  color: var(--cyan-soft);
  cursor: pointer;
  list-style: none;
}

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

.page-privacy .pp-fold summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
}

.page-privacy .pp-fold[open] summary::after { content: "−"; }

.page-privacy .pp-fold summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-privacy .pp-fold__body {
  padding: 0 18px 18px;
  border-top: 1px solid var(--line);
}

.page-privacy .pp-fold__body p {
  margin: 14px 0 0;
  max-width: 34em;
  font-size: 13.8px;
  line-height: 1.76;
  color: var(--mute);
}

.page-privacy .pp-fold__body strong {
  color: var(--fog);
  font-weight: 600;
}

/* ---------- 保护措施 ---------- */
.page-privacy .pp-guard {
  margin-top: 26px;
  padding: 20px 20px 22px;
  background: linear-gradient(150deg, rgba(34, 211, 238, .08) 0%, rgba(14, 44, 68, .85) 62%);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
}

.page-privacy .pp-guard h3 {
  margin: 0 0 14px;
  font-size: 14.5px;
  font-weight: 700;
  letter-spacing: .01em;
  color: var(--cyan-soft);
}

.page-privacy .pp-guard ul {
  list-style: none;
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
}

.page-privacy .pp-guard li {
  position: relative;
  padding-left: 22px;
  font-size: 13.8px;
  line-height: 1.7;
  color: var(--mute);
}

.page-privacy .pp-guard li::before {
  content: counter(pp-guard);
  counter-increment: pp-guard;
  position: absolute;
  left: 0;
  top: .1em;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
  letter-spacing: .04em;
}

.page-privacy .pp-guard ul {
  counter-reset: pp-guard;
}

/* ---------- 权利卡片 ---------- */
.page-privacy .pp-rights {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  margin-top: 24px;
}

.page-privacy .pp-right {
  padding: 16px 16px 18px;
  background: var(--deep-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  transition: transform .3s var(--ease), border-color .3s var(--ease);
}

.page-privacy .pp-right:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
}

.page-privacy .pp-right p {
  margin: 12px 0 0;
  font-size: 13.6px;
  line-height: 1.7;
  color: var(--mute);
}

.page-privacy .pp-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.page-privacy .pp-mail {
  margin-top: 20px;
}

.page-privacy .pp-mail .mono {
  color: var(--cyan-soft);
  word-break: break-all;
}

/* ---------- 桌面端 ---------- */
@media (min-width: 720px) {
  .page-privacy .pp-cats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 960px) {
  .page-privacy .pp-hero {
    padding-top: 48px;
  }

  .page-privacy .pp-layout {
    flex-direction: row;
    align-items: flex-start;
    gap: var(--pp-gap);
    padding-top: 64px;
  }

  .page-privacy .pp-main {
    flex: 1 1 auto;
    order: 0;
  }

  .page-privacy .pp-side {
    order: 1;
    position: sticky;
    top: calc(var(--topbar-h) + 26px);
    flex: 0 0 var(--pp-side-w);
    padding-bottom: 0;
    border-bottom: 0;
    border-left: 1px solid var(--line);
    padding-left: 20px;
  }

  .page-privacy .pp-side__list {
    display: grid;
    gap: 2px;
  }

  .page-privacy .pp-side__list a {
    padding: 9px 10px;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0 8px 8px 0;
    font-size: 13.5px;
  }

  .page-privacy .pp-side__list a:hover,
  .page-privacy .pp-side__list a:focus-visible {
    border-left-color: var(--cyan);
    background: rgba(34, 211, 238, .06);
  }

  .page-privacy .pp-sec {
    padding-top: 42px;
    margin-top: 42px;
  }

  .page-privacy .pp-sec:first-of-type {
    padding-top: 0;
    margin-top: 0;
  }

  .page-privacy .pp-uses li {
    padding-left: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .pp-right,
  .page-privacy .pp-uses li,
  .page-privacy .pp-side__list a {
    transition: none;
  }

  .page-privacy .pp-right:hover {
    transform: none;
  }
}