.page-privacy {
  --pv-index-w: 208px;
  --pv-body-w: 700px;
  --pv-cut: 14px;
  display: block;
}

/* ---------- 顶部标题区 ---------- */
.page-privacy .pv-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--ink-900);
  border-bottom: 1px solid var(--ink-700);
}

.page-privacy .pv-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-privacy .pv-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  object-position: center 42%;
  opacity: 0.3;
  filter: saturate(0.55) contrast(1.05);
}

.page-privacy .pv-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background-image:
    linear-gradient(rgba(34, 49, 94, 0.4) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 49, 94, 0.4) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.75), transparent 92%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.75), transparent 92%);
}

.page-privacy .pv-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  background: linear-gradient(180deg, rgba(10, 19, 48, 0.32) 0%, rgba(10, 19, 48, 0.88) 64%, var(--ink-900) 100%);
}

.page-privacy .pv-hero__inner {
  position: relative;
  z-index: 3;
  padding-block: 44px 42px;
}

.page-privacy .pv-hero .breadcrumb {
  margin-bottom: 22px;
}

.page-privacy .pv-hero .eyebrow {
  margin: 0;
}

.page-privacy .pv-hero .display {
  margin: 12px 0 0;
  font-size: clamp(30px, 7.4vw, 52px);
  line-height: 1.16;
  color: var(--cream);
}

.page-privacy .pv-hero .lede {
  margin: 18px 0 0;
  max-width: 640px;
  color: var(--text-dim);
}

/* ---------- 版面骨架 ---------- */
.page-privacy .pv-layout {
  display: grid;
  gap: 34px;
  padding-block: 46px 74px;
}

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

/* ---------- 章节索引 ---------- */
.page-privacy .pv-index {
  min-width: 0;
}

.page-privacy .pv-index__label {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-mute);
}

.page-privacy .pv-index__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 10px;
  list-style: none;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-privacy .pv-index__item {
  flex: 0 0 auto;
  scroll-snap-align: start;
}

.page-privacy .pv-index__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid var(--ink-700);
  background: var(--ink-850);
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.2;
  white-space: nowrap;
  text-decoration: none;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 10px), calc(100% - 10px) 100%, 0 100%);
  transition: color 200ms var(--ease), border-color 200ms var(--ease), background-color 200ms var(--ease);
}

.page-privacy .pv-index__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--cyan-deep);
  transition: color 200ms var(--ease);
}

.page-privacy .pv-index__link:hover,
.page-privacy .pv-index__link:focus-visible {
  color: var(--text);
  border-color: var(--cyan);
  background: var(--ink-800);
}

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

/* ---------- 正文分区 ---------- */
.page-privacy .pv-section {
  scroll-margin-top: 108px;
}

.page-privacy .pv-section + .pv-section {
  margin-top: 52px;
  padding-top: 52px;
  background-image: linear-gradient(96deg, rgba(47, 224, 208, 0.6) 0%, rgba(47, 224, 208, 0) 46%);
  background-size: 190px 1px;
  background-repeat: no-repeat;
  background-position: 0 0;
}

.page-privacy .pv-num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--cyan);
}

.page-privacy .pv-section .h2 {
  margin: 8px 0 0;
  font-size: clamp(23px, 5.2vw, 31px);
  line-height: 1.32;
  color: var(--cream);
}

/* ---------- 展开式要点 ---------- */
.page-privacy .pv-detail {
  margin-top: 18px;
  padding-left: 16px;
  border-left: 2px solid var(--ink-700);
  transition: border-color 240ms var(--ease);
}

.page-privacy .pv-detail[open] {
  border-left-color: var(--cyan);
}

.page-privacy .pv-detail > * + * {
  margin-top: 16px;
}

.page-privacy .pv-key {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin: 0;
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.62;
  color: var(--cream);
  cursor: pointer;
  list-style: none;
  transition: color 200ms var(--ease);
}

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

.page-privacy .pv-key::marker {
  content: "";
}

.page-privacy .pv-key::before {
  content: "";
  flex: 0 0 auto;
  width: 11px;
  height: 11px;
  margin-top: 10px;
  border-top: 2px solid var(--cyan-deep);
  border-right: 2px solid var(--cyan-deep);
  transform: rotate(45deg);
  transition: transform 240ms var(--ease), border-color 200ms var(--ease);
}

.page-privacy .pv-detail[open] .pv-key::before {
  transform: rotate(135deg);
  border-color: var(--cyan);
}

.page-privacy .pv-key:hover {
  color: var(--text);
}

.page-privacy .pv-detail .prose p {
  margin: 0;
  color: var(--text-dim);
}

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

.page-privacy .pv-list > li {
  position: relative;
  padding-left: 22px;
  color: var(--text-dim);
  font-size: 16px;
  line-height: 1.75;
}

.page-privacy .pv-list > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 13px;
  width: 9px;
  height: 1px;
  background: var(--cyan);
}

.page-privacy .pv-list > li strong {
  color: var(--text);
  font-weight: 600;
}

/* ---------- 提示块 ---------- */
.page-privacy .pv-callout {
  padding: 18px 20px;
  background: var(--ink-850);
  border: 1px solid var(--ink-700);
  border-left: 3px solid var(--orange);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--pv-cut)), calc(100% - var(--pv-cut)) 100%, 0 100%);
}

.page-privacy .pv-callout__title {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--orange-soft);
}

.page-privacy .pv-callout p {
  margin: 0;
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.72;
}

/* ---------- 联系方式 ---------- */
.page-privacy .pv-contact {
  display: grid;
  gap: 12px;
}

.page-privacy .pv-contact__row {
  display: grid;
  gap: 6px;
  padding: 14px 16px;
  background: var(--ink-850);
  border: 1px solid var(--ink-700);
}

.page-privacy .pv-contact__key {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-privacy .pv-contact__val {
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  overflow-wrap: anywhere;
}

.page-privacy .pv-more {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

/* ---------- 桌面版：左栏固定索引 ---------- */
@media (min-width: 900px) {
  .page-privacy .pv-hero__inner {
    padding-block: 86px 70px;
  }

  .page-privacy .pv-layout {
    grid-template-columns: var(--pv-index-w) minmax(0, var(--pv-body-w));
    column-gap: 76px;
    row-gap: 0;
    justify-content: center;
    padding-block: 88px 116px;
  }

  .page-privacy .pv-index {
    position: sticky;
    top: calc(var(--header-top-h) + var(--header-main-h) + 28px);
    align-self: start;
  }

  .page-privacy .pv-index__list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-privacy .pv-index__link {
    width: 100%;
    justify-content: flex-start;
    padding: 0 12px;
    border: 1px solid transparent;
    border-left: 2px solid transparent;
    background: transparent;
    clip-path: none;
  }

  .page-privacy .pv-index__link:hover,
  .page-privacy .pv-index__link:focus-visible {
    border-color: transparent;
    border-left-color: var(--cyan);
    background: var(--ink-850);
  }

  .page-privacy .pv-section {
    scroll-margin-top: 140px;
  }

  .page-privacy .pv-section + .pv-section {
    margin-top: 64px;
    padding-top: 64px;
  }

  .page-privacy .pv-key {
    font-size: 21px;
  }
}

@media (min-width: 1240px) {
  .page-privacy .pv-layout {
    column-gap: 92px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .pv-index__link,
  .page-privacy .pv-index__num,
  .page-privacy .pv-detail,
  .page-privacy .pv-key,
  .page-privacy .pv-key::before {
    transition: none;
  }
}