.page-privacy {
  --pv-oval: 118px;
  --pv-line: rgba(53, 225, 214, 0.22);
  position: relative;
  overflow-x: clip;
  padding-bottom: 96px;
  background:
    linear-gradient(to right, rgba(38, 49, 63, 0.3) 1px, transparent 1px) 0 0 / 84px 84px,
    linear-gradient(to bottom, rgba(38, 49, 63, 0.22) 1px, transparent 1px) 0 0 / 84px 84px,
    var(--ink);
}

.page-privacy::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(120deg, transparent 30%, rgba(123, 77, 255, 0.13) 52%, transparent 74%);
  mix-blend-mode: screen;
  z-index: 0;
}

.page-privacy > .container {
  position: relative;
  z-index: 1;
}

.page-privacy h2,
.page-privacy h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--text);
}

.page-privacy h2 {
  font-size: clamp(24px, 4.4vw, 36px);
  line-height: 1.16;
}

.page-privacy h3 {
  font-size: 18px;
  line-height: 1.35;
}

.page-privacy p {
  margin: 0;
}

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

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

.page-privacy .breadcrumbs {
  display: block;
  margin: 22px 0 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--muted);
}

.page-privacy .breadcrumbs a {
  color: var(--muted);
}

.page-privacy .breadcrumbs a:hover {
  color: var(--cyan);
}

/* ---------- 首屏 ---------- */
.pv-hero {
  position: relative;
  margin-bottom: 54px;
}

.pv-hero__frame {
  border: 1px solid var(--line);
  overflow: hidden;
}

.pv-hero__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.12) brightness(0.72);
}

.pv-hero__text {
  position: relative;
  margin-top: -58px;
  margin-left: 8px;
  max-width: 720px;
  padding: 26px 24px 28px 20px;
  border-left: 3px solid var(--cyan);
  background: linear-gradient(150deg, rgba(16, 22, 31, 0.96), rgba(7, 10, 18, 0.9));
  box-shadow: 0 22px 46px rgba(0, 0, 0, 0.45);
}

.pv-hero__text .eyebrow {
  margin-bottom: 10px;
  color: var(--cyan);
}

.page-privacy h1 {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 7.4vw, 54px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  color: var(--text);
}

.pv-lede {
  max-width: 60ch;
  font-family: var(--font-serif);
  font-size: 16px;
  line-height: 1.85;
  color: var(--text);
}

/* ---------- 主体布局 ---------- */
.pv-body {
  position: relative;
  display: grid;
  gap: 40px;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 20px;
}

/* 右侧章节刻度 */
.pv-ticks {
  display: none;
}

.pv-tick {
  display: grid;
  grid-template-columns: 26px 1fr;
  gap: 8px;
  align-items: baseline;
  padding: 10px 0 10px 12px;
  border-left: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  color: var(--muted);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.pv-tick__idx {
  color: var(--violet);
}

.pv-tick:hover,
.pv-tick:focus-visible {
  color: var(--text);
  border-left-color: var(--cyan);
}

/* ---------- 流向段 ---------- */
.pv-flow {
  position: relative;
  display: grid;
  gap: 10px;
  padding-top: 34px;
}

.pv-flow__rail {
  display: flex;
  align-items: flex-start;
}

.pv-flow__idx {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: transparent;
  -webkit-text-stroke: 1px var(--cyan);
}

.pv-flow__main {
  min-width: 0;
  padding-left: 14px;
  border-left: 1px solid var(--pv-line);
}

.pv-flow__lead {
  max-width: 58ch;
  margin-top: 12px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.pv-flow .section-head {
  margin-bottom: 24px;
}

.page-privacy .section-head__title {
  position: relative;
  padding-left: 14px;
}

.page-privacy .section-head__title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 3px;
  background: linear-gradient(var(--cyan), var(--violet));
}

/* ---------- 01 收集范围 ---------- */
.pv-collect {
  display: grid;
  gap: 0;
}

.pv-collect__item {
  position: relative;
  padding: 20px 0 20px 18px;
  border-top: 1px solid var(--line);
  max-width: 62ch;
}

.pv-collect__item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 28px;
  width: 7px;
  height: 7px;
  border: 1px solid var(--cyan);
  background: var(--ink);
  border-radius: 50%;
}

.pv-collect__item:last-child {
  border-bottom: 1px solid var(--line);
}

.pv-collect__name {
  margin-bottom: 8px;
  font-size: 17px;
}

.pv-collect__item p {
  font-size: 15px;
  line-height: 1.88;
  color: var(--muted);
}

/* ---------- 02 用途 ---------- */
.pv-grid {
  display: grid;
  gap: 16px;
}

.pv-use {
  padding: 20px 18px 22px;
  border-radius: var(--radius);
}

.pv-use__no {
  margin-bottom: 10px;
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--violet);
}

.pv-use__name {
  margin-bottom: 8px;
  font-size: 17px;
}

.pv-use p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 03 保存周期 ---------- */
.pv-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
  counter-reset: pvf;
}

.pv-fact {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 16px 18px;
  background: linear-gradient(120deg, rgba(27, 36, 49, 0.85), rgba(16, 22, 31, 0.7));
  border: 1px solid var(--line);
}

.pv-fact__label {
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.pv-fact__text {
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.88;
  color: var(--text);
}

.pv-more {
  margin-top: 18px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--lime);
  background: rgba(16, 22, 31, 0.7);
}

.pv-more__sum {
  padding: 13px 16px;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--lime);
  cursor: pointer;
  list-style: none;
}

.pv-more__sum::-webkit-details-marker {
  display: none;
}

.pv-more[open] .pv-more__sum {
  border-bottom: 1px solid var(--line);
}

.pv-more__body {
  padding: 16px;
  max-width: 60ch;
  font-size: 15px;
  line-height: 1.88;
  color: var(--muted);
}

/* ---------- 04 订阅 ---------- */
.pv-sub {
  display: grid;
  gap: 16px;
}

.pv-sub__col {
  padding: 22px 18px;
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
}

.pv-sub__col::after {
  content: "";
  position: absolute;
  right: -30px;
  bottom: -30px;
  width: 110px;
  height: 110px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(53, 225, 214, 0.16), transparent 68%);
}

.pv-sub__label {
  margin-bottom: 10px;
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--muted);
}

.pv-sub__name {
  margin-bottom: 10px;
  font-size: 19px;
}

.pv-sub__col p:not(.pv-sub__label) {
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

.pv-sub__note {
  margin-top: 18px;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.88;
  color: var(--text);
}

.pv-callout {
  margin-top: 16px;
  padding: 14px 16px;
  border-left: 3px solid var(--amber);
  background: rgba(255, 167, 51, 0.07);
  font-size: 14px;
  line-height: 1.8;
  color: var(--text);
}

/* ---------- 05 用户可控 ---------- */
.pv-control {
  display: grid;
  gap: 12px;
}

.pv-control__card {
  display: grid;
  gap: 6px;
  padding: 18px;
  border: 1px solid var(--line);
  background: rgba(27, 36, 49, 0.55);
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.pv-control__card:hover,
.pv-control__card:focus-visible {
  transform: translateY(-2px);
  border-color: var(--cyan);
  background: rgba(53, 225, 214, 0.06);
  text-decoration: none;
}

.pv-control__tag {
  justify-self: start;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
}

.pv-control__name {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
}

.pv-control__go {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.pv-note {
  margin-top: 18px;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 06 联系 ---------- */
.pv-reach {
  display: grid;
  gap: 14px;
}

.pv-reach__box {
  padding: 20px 18px;
  border-radius: var(--radius);
}

.pv-reach__label {
  margin-bottom: 10px;
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.pv-reach__value {
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.6;
  letter-spacing: 0.02em;
  color: var(--text);
  word-break: break-word;
}

.pv-reach__desc {
  max-width: 56ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 备案与更新 ---------- */
.pv-support {
  margin-top: 18px;
  padding: 26px 20px;
  border: 1px solid var(--line);
  border-top: 3px solid var(--violet);
  background: linear-gradient(180deg, rgba(123, 77, 255, 0.08), rgba(7, 10, 18, 0.4));
}

.pv-support__list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.pv-support__list li {
  display: grid;
  grid-template-columns: 68px 1fr;
  gap: 10px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.pv-support__list .mono {
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--violet);
  padding-top: 4px;
}

/* ---------- 回到顶部 ---------- */
.pv-top {
  position: fixed;
  right: 16px;
  bottom: 18px;
  z-index: 20;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  background: rgba(16, 22, 31, 0.88);
  backdrop-filter: blur(6px);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--cyan);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.pv-top:hover,
.pv-top:focus-visible {
  transform: translateY(-2px);
  border-color: var(--cyan);
  text-decoration: none;
}

/* ---------- 响应式 ---------- */
@media (min-width: 680px) {
  .pv-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pv-sub {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pv-fact {
    grid-template-columns: 118px 1fr;
    align-items: baseline;
    gap: 18px;
  }

  .pv-control {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pv-reach {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pv-reach__box--wide {
    grid-column: 1 / -1;
  }

  .pv-hero__text {
    margin-top: -70px;
    padding: 32px 36px 34px 28px;
  }

  .page-privacy {
    padding-bottom: 110px;
  }

  .pv-top {
    right: 26px;
    bottom: 26px;
  }
}

@media (min-width: 1024px) {
  .pv-body {
    grid-template-columns: minmax(0, 1fr) var(--pv-oval);
    align-items: start;
    gap: 36px;
    padding-right: 0;
  }

  .pv-flow,
  .pv-support {
    grid-column: 1;
  }

  .pv-ticks {
    grid-column: 2;
    grid-row: 1 / span 6;
    display: block;
    position: sticky;
    top: 96px;
    align-self: start;
    padding-left: 6px;
  }

  .pv-support {
    grid-column: 1 / -1;
  }

  .pv-flow {
    grid-template-columns: 76px minmax(0, 1fr);
    gap: 0 26px;
    padding-top: 48px;
  }

  .pv-flow__main {
    padding-left: 26px;
  }

  .pv-flow__idx {
    font-size: 30px;
  }

  .pv-flow__lead {
    font-size: 16px;
  }

  .pv-support__list li {
    grid-template-columns: 88px 1fr;
  }
}

@media (min-width: 1200px) {
  .pv-flow {
    grid-template-columns: 92px minmax(0, 1fr);
  }

  .pv-body {
    gap: 52px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy *,
  .page-privacy *::before,
  .page-privacy *::after {
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
  }

  .pv-control__card:hover,
  .pv-top:hover {
    transform: none;
  }
}