.page-privacy {
  --pp-measure: 33em;
  --pp-hero-text: #D8E5EE;
  --pp-sticky-top: calc(var(--mob-bar) + 4px);
  background: var(--water);
  color: var(--ink);
  font-family: var(--font-sans);
}

.page-privacy .container {
  padding-inline: clamp(18px, 5vw, 40px);
}

@media (min-width: 1024px) {
  .page-privacy .container {
    padding-left: calc(var(--rail-w) + clamp(24px, 3vw, 56px));
    padding-right: clamp(24px, 4vw, 56px);
  }
}

/* ---------- 页头 ---------- */
.page-privacy .pp-hero {
  position: relative;
  overflow: hidden;
  background: var(--deep);
  color: var(--paper);
  padding-top: calc(var(--scale-h) + clamp(26px, 4vw, 52px));
  padding-bottom: clamp(36px, 5vw, 72px);
  border-bottom: 1px solid var(--deep-lift);
}

.page-privacy .pp-hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(127, 163, 184, .18) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(127, 163, 184, .18) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

.page-privacy .pp-hero__img {
  position: absolute;
  top: 0;
  right: 0;
  width: min(70%, 880px);
  height: 100%;
  object-fit: cover;
  opacity: .3;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(105deg, transparent 0%, #000 55%);
  mask-image: linear-gradient(105deg, transparent 0%, #000 55%);
}

.page-privacy .pp-hero__inner {
  position: relative;
  z-index: 1;
}

.page-privacy .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--coord);
}

.page-privacy .breadcrumb a {
  color: var(--coord);
  text-decoration: none;
}

.page-privacy .breadcrumb a:hover,
.page-privacy .breadcrumb a:focus-visible {
  color: var(--accent);
}

.page-privacy .pp-hero .index-tag {
  margin-top: clamp(18px, 3.5vw, 38px);
  color: var(--coord);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
}

.page-privacy .pp-hero__title {
  margin: 16px 0 0;
  font-size: clamp(38px, 6vw, 72px);
  font-weight: 300;
  line-height: .98;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-privacy .pp-hero__lede {
  margin: clamp(16px, 2.5vw, 24px) 0 0;
  max-width: 34em;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: var(--pp-hero-text);
}

.page-privacy .pp-hero__meta {
  margin: 22px 0 0;
  padding-top: 14px;
  max-width: 34em;
  border-top: 1px solid var(--deep-lift);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--coord);
}

/* ---------- 正文两栏 ---------- */
.page-privacy .pp-body {
  padding: clamp(32px, 5vw, 72px) 0 clamp(40px, 6vw, 88px);
  background: var(--water);
}

.page-privacy .pp-body__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 40px);
  align-items: start;
}

/* ---------- 章节索引 ---------- */
.page-privacy .pp-toc__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--coord);
}

.page-privacy .pp-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--line);
}

.page-privacy .pp-toc__list li {
  display: flex;
  margin: 0;
}

.page-privacy .pp-toc__list a {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex: 1 1 auto;
  padding: 9px 8px 9px 12px;
  margin-left: -1px;
  border-left: 2px solid transparent;
  color: var(--deep);
  font-size: 13.5px;
  line-height: 1.45;
  text-decoration: none;
  transition: color .18s var(--ease), border-color .18s var(--ease), background-color .18s var(--ease);
}

.page-privacy .pp-toc__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--coord);
  transition: color .18s var(--ease);
}

.page-privacy .pp-toc__list a:hover,
.page-privacy .pp-toc__list a:focus-visible {
  color: var(--accent);
  border-left-color: var(--accent);
  background: rgba(255, 90, 31, .06);
}

.page-privacy .pp-toc__list a:hover .pp-toc__num,
.page-privacy .pp-toc__list a:focus-visible .pp-toc__num {
  color: var(--accent);
}

/* ---------- 条款章节 ---------- */
.page-privacy .pp-article {
  min-width: 0;
}

.page-privacy .pp-sec {
  padding-top: clamp(26px, 3.5vw, 44px);
  border-top: 1px solid var(--line);
  scroll-margin-top: 120px;
}

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

.page-privacy .pp-sec__head {
  position: sticky;
  top: var(--pp-sticky-top);
  z-index: 3;
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 8px 0 12px;
  background: linear-gradient(180deg, var(--water) 0%, var(--water) 74%, rgba(237, 243, 247, 0) 100%);
}

.page-privacy .pp-sec__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--coord);
  transition: color .18s var(--ease);
}

.page-privacy .pp-sec__head h2 {
  margin: 0;
  font-size: clamp(19px, 2.1vw, 26px);
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: .01em;
  color: var(--deep);
  transition: color .18s var(--ease);
}

.page-privacy .pp-sec:target .pp-sec__num {
  color: var(--accent);
}

.page-privacy .pp-sec:target .pp-sec__head h2 {
  color: var(--deep-dark);
  box-shadow: inset 0 -2px 0 var(--accent);
}

.page-privacy .pp-article p {
  max-width: var(--pp-measure);
  margin: 0 0 1.05em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--ink);
}

.page-privacy .pp-list {
  list-style: none;
  margin: 0 0 1.2em;
  padding: 0;
  max-width: var(--pp-measure);
}

.page-privacy .pp-list li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 14px;
  font-size: 15.5px;
  line-height: 1.8;
  color: #2A3A45;
}

.page-privacy .pp-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: .8em;
  width: 6px;
  height: 2px;
  background: var(--accent);
}

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

.page-privacy .pp-em {
  max-width: var(--pp-measure);
  margin: 0 0 1.2em;
  padding: 14px 16px;
  border-left: 3px solid var(--accent);
  background: var(--paper);
  box-shadow: var(--shadow-soft);
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--deep);
}

.page-privacy .pp-facts {
  margin: 0 0 1.2em;
  max-width: var(--pp-measure);
}

.page-privacy .pp-facts dt {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
  font-size: 15px;
  font-weight: 600;
  color: var(--deep);
}

.page-privacy .pp-facts dt::before {
  content: "";
  flex: none;
  width: 16px;
  height: 1px;
  background: var(--accent);
}

.page-privacy .pp-facts dd {
  margin: 6px 0 0 26px;
  font-size: 15.5px;
  line-height: 1.8;
  color: #2A3A45;
}

.page-privacy .pp-keep {
  margin: 18px 0 1.2em;
  max-width: var(--pp-measure);
  border-top: 1px solid var(--line);
}

.page-privacy .pp-keep__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.page-privacy .pp-keep__k {
  font-size: 14.5px;
  color: var(--ink);
}

.page-privacy .pp-keep__v {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--deep);
  text-align: right;
}

/* ---------- 版本差异 ---------- */
.page-privacy .pp-diff {
  max-width: var(--pp-measure);
  margin-top: clamp(28px, 4vw, 44px);
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.page-privacy .pp-diff summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 6px 0;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--deep);
}

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

.page-privacy .pp-diff summary::after {
  content: "+";
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1;
  color: var(--accent);
}

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

.page-privacy .pp-diff .pp-list {
  margin-top: 14px;
}

/* ---------- 尾部 ---------- */
.page-privacy .pp-tail {
  position: relative;
  overflow: hidden;
  margin-top: clamp(28px, 5vw, 64px);
  padding: clamp(40px, 6vw, 88px) 0;
  background: var(--deep-dark);
  color: var(--paper);
}

.page-privacy .pp-tail__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(127, 163, 184, .14) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(127, 163, 184, .14) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

.page-privacy .pp-tail__inner {
  position: relative;
  z-index: 1;
}

.page-privacy .pp-tail .index-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--coord);
}

.page-privacy .pp-tail__title {
  max-width: 22em;
  margin: 16px 0 0;
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 300;
  line-height: 1.35;
  color: var(--paper);
}

.page-privacy .pp-tail__text {
  max-width: 32em;
  margin: 14px 0 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--pp-hero-text);
}

.page-privacy .pp-tail__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.page-privacy .pp-tail .btn--ghost {
  color: var(--paper);
  border-color: var(--deep-lift);
}

.page-privacy .pp-tail .btn--ghost:hover,
.page-privacy .pp-tail .btn--ghost:focus-visible {
  color: var(--accent);
  border-color: var(--accent);
}

.page-privacy .pp-contact-line {
  margin: 26px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--coord);
  word-break: break-word;
}

/* ---------- 响应式 ---------- */
@media (min-width: 900px) {
  .page-privacy {
    --pp-sticky-top: calc(var(--scale-h) + 12px);
  }

  .page-privacy .pp-body__grid {
    grid-template-columns: 190px minmax(0, 1fr);
    gap: clamp(32px, 5vw, 72px);
  }

  .page-privacy .pp-toc {
    position: sticky;
    top: calc(var(--scale-h) + 16px);
  }
}

@media (max-width: 899px) {
  .page-privacy .pp-toc__list {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    border-left: 0;
    border-top: 1px solid var(--line);
    padding-top: 10px;
    scrollbar-width: thin;
  }

  .page-privacy .pp-toc__list li {
    flex: none;
  }

  .page-privacy .pp-toc__list a {
    flex: none;
    padding: 7px 12px;
    margin-left: 0;
    border: 1px solid var(--line);
    border-left-width: 1px;
    background: var(--paper);
    white-space: nowrap;
  }

  .page-privacy .pp-toc__list a:hover,
  .page-privacy .pp-toc__list a:focus-visible {
    border-color: var(--accent);
    border-left-color: var(--accent);
  }
}

@media (max-width: 767px) {
  .page-privacy .pp-hero__img {
    width: 100%;
    opacity: .16;
    -webkit-mask-image: linear-gradient(180deg, transparent 0%, #000 62%);
    mask-image: linear-gradient(180deg, transparent 0%, #000 62%);
  }
}

@media (max-width: 600px) {
  .page-privacy .pp-keep__row {
    grid-template-columns: minmax(0, 1fr);
    gap: 4px;
  }

  .page-privacy .pp-keep__v {
    text-align: left;
  }

  .page-privacy .pp-facts dd {
    margin-left: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .pp-toc__list a,
  .page-privacy .pp-toc__num,
  .page-privacy .pp-sec__num,
  .page-privacy .pp-sec__head h2 {
    transition: none;
  }
}