.page-privacy {
  --pv-measure: 680px;
  --pv-rail: 96px;
  --pv-gap: clamp(20px, 3vw, 44px);
}

/* ---------- 面包屑 ---------- */
.page-privacy .pv-crumbs {
  padding-top: clamp(18px, 2.6vw, 30px);
}

.page-privacy .breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--fg-dim);
}

.page-privacy .breadcrumbs a {
  color: var(--fg-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-privacy .breadcrumbs a:hover,
.page-privacy .breadcrumbs a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-privacy .breadcrumbs [aria-current="page"] {
  color: var(--fg);
}

/* ---------- 首屏 ---------- */
.page-privacy .pv-hero {
  position: relative;
  overflow: hidden;
  margin-top: clamp(14px, 2.2vw, 26px);
}

.page-privacy .pv-hero__bg {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: clamp(210px, 32vw, 370px);
  background:
    linear-gradient(112deg, rgba(53, 242, 200, .15) 0%, rgba(53, 242, 200, 0) 44%),
    linear-gradient(180deg, var(--panel) 0%, var(--ink) 100%);
  clip-path: polygon(0 0, 100% 0, 100% 74%, 0 100%);
  pointer-events: none;
}

.page-privacy .pv-hero__copy {
  position: relative;
  z-index: 1;
}

.page-privacy .pv-hero__title {
  margin: clamp(12px, 1.8vw, 20px) 0 0;
  font-family: var(--font-serif);
  font-size: clamp(34px, 6vw, 60px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -.02em;
  color: var(--fg);
}

.page-privacy .pv-hero__lead {
  max-width: 62ch;
  margin: clamp(16px, 2.2vw, 26px) 0 0;
  font-size: clamp(15.5px, 1.2vw, 17.5px);
  line-height: 1.78;
  color: var(--fg-dim);
}

.page-privacy .pv-hero__meta {
  display: grid;
  gap: 14px 28px;
  margin: clamp(24px, 3.4vw, 38px) 0 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid var(--line-soft);
}

.page-privacy .pv-hero__meta li {
  display: grid;
  gap: 5px;
}

.page-privacy .pv-hero__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--cyan);
}

.page-privacy .pv-hero__val {
  font-size: 15px;
  line-height: 1.6;
  color: var(--fg);
}

.page-privacy .pv-hero__val--mono {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  word-break: break-all;
}

.page-privacy .pv-hero__media {
  margin: clamp(28px, 4.2vw, 50px) 0 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--ink-2);
}

.page-privacy .pv-hero__media img {
  display: block;
  width: 100%;
  height: clamp(170px, 26vw, 320px);
  object-fit: cover;
  object-position: center 40%;
  filter: saturate(.72) contrast(1.06);
}

/* ---------- 正文骨架 ---------- */
.page-privacy .pv-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  justify-content: center;
  padding-top: clamp(30px, 4.6vw, 58px);
  padding-bottom: clamp(48px, 6vw, 88px);
}

.page-privacy .pv-rail {
  display: none;
}

.page-privacy .pv-article {
  min-width: 0;
}

/* ---------- 章节 ---------- */
.page-privacy .pv-sec {
  padding-block: clamp(26px, 3.6vw, 42px);
  border-top: 1px solid var(--line-soft);
}

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

.page-privacy .pv-sec__title {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px 14px;
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(22px, 3vw, 31px);
  font-weight: 700;
  line-height: 1.24;
  letter-spacing: -.01em;
  color: var(--fg);
}

.page-privacy .pv-sec__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  letter-spacing: .06em;
  color: var(--cyan);
}

.page-privacy .pv-sec p {
  margin: 16px 0 0;
  font-size: clamp(15.5px, 1.15vw, 17px);
  line-height: 1.78;
  color: var(--fg);
}

.page-privacy .pv-sec .pv-sec__lead {
  margin-top: 14px;
  color: var(--fg-dim);
}

/* ---------- 三类记录 ---------- */
.page-privacy .pv-def {
  margin: 22px 0 0;
  padding: 0;
}

.page-privacy .pv-def__row {
  display: grid;
  gap: 7px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-privacy .pv-def__row:first-child {
  border-top: 1px solid var(--line-soft);
}

.page-privacy .pv-def__term {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .07em;
  color: var(--cyan);
}

.page-privacy .pv-def__desc {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--fg-dim);
}

/* ---------- 用途三条 ---------- */
.page-privacy .pv-uses {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 16px;
}

.page-privacy .pv-uses__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding: 18px 20px;
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--cyan);
  border-radius: var(--radius);
}

.page-privacy .pv-uses__item:nth-child(2) {
  border-left-color: var(--orange);
}

.page-privacy .pv-uses__item:nth-child(3) {
  border-left-color: var(--violet);
}

.page-privacy .pv-uses__idx {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--fg-dim);
}

.page-privacy .pv-uses__title {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: .01em;
  color: var(--fg);
}

.page-privacy .pv-sec .pv-uses__item p {
  margin: 8px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--fg-dim);
}

/* ---------- 说明块 ---------- */
.page-privacy .pv-note {
  margin: 22px 0 0;
  padding: 18px 22px;
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
}

.page-privacy .pv-note__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .07em;
  color: var(--gold);
}

.page-privacy .pv-sec .pv-note > p {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--fg-dim);
}

/* ---------- 折叠条款 ---------- */
.page-privacy .pv-fold {
  margin: 22px 0 0;
  background: var(--panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  transition: border-color var(--dur) var(--ease);
}

.page-privacy .pv-fold:hover,
.page-privacy .pv-fold[open] {
  border-color: var(--line);
}

.page-privacy .pv-fold__sum {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 15.5px;
  font-weight: 600;
  color: var(--fg);
}

.page-privacy .pv-fold__sum::-webkit-details-marker {
  display: none;
}

.page-privacy .pv-fold__sum::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--cyan);
}

.page-privacy .pv-fold[open] .pv-fold__sum::after {
  content: "\2212";
}

.page-privacy .pv-fold__sum:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 2px;
}

.page-privacy .pv-fold__body {
  padding: 16px 20px 20px;
  border-top: 1px solid var(--line-soft);
}

/* ---------- 列表 ---------- */
.page-privacy .pv-list {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-privacy .pv-sec .pv-list li {
  position: relative;
  margin-top: 10px;
  padding-left: 16px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--fg-dim);
}

.page-privacy .pv-sec .pv-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .76em;
  width: 6px;
  height: 1px;
  background: var(--cyan);
}

/* ---------- 底部入口 ---------- */
.page-privacy .pv-links {
  display: grid;
  gap: 1px;
  margin: 26px 0 0;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-privacy .pv-link {
  display: grid;
  gap: 6px;
  padding: 18px 20px;
  background: var(--panel);
  text-decoration: none;
  transition: background var(--dur) var(--ease);
}

.page-privacy .pv-link:hover,
.page-privacy .pv-link:focus-visible {
  background: var(--panel-2);
}

.page-privacy .pv-link:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: -2px;
}

.page-privacy .pv-link__k {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .07em;
  color: var(--cyan);
}

.page-privacy .pv-link__v {
  font-size: 15px;
  line-height: 1.6;
  color: var(--fg);
}

/* ---------- 回到顶部 ---------- */
.page-privacy .pv-top {
  position: fixed;
  right: clamp(14px, 2.4vw, 30px);
  bottom: clamp(14px, 2.4vw, 30px);
  z-index: 30;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--fg);
  text-decoration: none;
  background: rgba(16, 19, 20, .9);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  backdrop-filter: blur(6px);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-privacy .pv-top::before {
  content: "\2191";
  font-size: 12px;
  line-height: 1;
  color: var(--cyan);
}

.page-privacy .pv-top:hover,
.page-privacy .pv-top:focus-visible {
  color: var(--cyan);
  border-color: var(--cyan);
}

.page-privacy .pv-top:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-privacy .pv-links {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 720px) {
  .page-privacy .pv-hero__meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-privacy .pv-def__row {
    grid-template-columns: 148px minmax(0, 1fr);
    gap: 24px;
    align-items: baseline;
  }
}

@media (min-width: 1000px) {
  .page-privacy .pv-body {
    grid-template-columns: var(--pv-rail) minmax(0, var(--pv-measure));
    column-gap: var(--pv-gap);
  }

  .page-privacy .pv-rail {
    display: block;
    position: sticky;
    top: 112px;
    align-self: start;
    padding-top: 6px;
  }

  .page-privacy .pv-rail__list {
    display: grid;
    gap: 16px;
    margin: 0;
    padding: 0 0 0 16px;
    list-style: none;
    border-left: 1px solid var(--line);
  }

  .page-privacy .pv-rail__link {
    position: relative;
    display: block;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: .07em;
    line-height: 1.5;
    color: var(--fg-dim);
    text-decoration: none;
    transition: color var(--dur) var(--ease);
  }

  .page-privacy .pv-rail__link::before {
    content: "";
    position: absolute;
    left: -16px;
    top: 8px;
    width: 7px;
    height: 1px;
    background: var(--line);
    transition: width var(--dur) var(--ease), background var(--dur) var(--ease);
  }

  .page-privacy .pv-rail__link:hover,
  .page-privacy .pv-rail__link:focus-visible {
    color: var(--fg);
    outline: none;
  }

  .page-privacy .pv-rail__link:hover::before,
  .page-privacy .pv-rail__link:focus-visible::before {
    width: 14px;
    background: var(--cyan);
  }

  .page-privacy .pv-rail__link:focus-visible {
    outline: 2px solid var(--orange);
    outline-offset: 4px;
  }
}

@media (max-width: 480px) {
  .page-privacy .pv-uses__item {
    gap: 12px;
    padding: 16px;
  }

  .page-privacy .pv-note {
    padding: 16px;
  }

  .page-privacy .pv-top {
    padding: 9px 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .pv-link,
  .page-privacy .pv-top,
  .page-privacy .pv-fold,
  .page-privacy .pv-rail__link,
  .page-privacy .pv-rail__link::before,
  .page-privacy .breadcrumbs a {
    transition: none;
  }
}