.page-privacy {
  --pv-line: rgba(27, 46, 74, 0.85);
  --pv-line-soft: rgba(27, 46, 74, 0.5);
  --pv-amber-line: rgba(255, 162, 58, 0.42);
  --pv-prose-max: 44em;
  display: block;
  padding-bottom: clamp(56px, 8vw, 104px);
  color: var(--white);
  position: relative;
}

.page-privacy .container {
  position: relative;
}

/* ---------- 首屏 ---------- */

.page-privacy .pv-head {
  padding: clamp(26px, 4.5vw, 52px) 0 clamp(14px, 2vw, 22px);
}

.page-privacy .pv-head .breadcrumbs {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-privacy .pv-head__kicker {
  margin: 0 0 14px;
  color: var(--steel);
  letter-spacing: 0.18em;
}

.page-privacy .pv-head__title {
  font-family: var(--font-serif);
  font-size: clamp(30px, 5.2vw, 50px);
  font-weight: 600;
  line-height: 1.22;
  letter-spacing: -0.005em;
  margin: 0 0 clamp(16px, 2.4vw, 24px);
  max-width: 20em;
  color: var(--white);
}

.page-privacy .pv-head__lede {
  max-width: var(--pv-prose-max);
  margin: 0 0 18px;
  color: var(--mist);
  font-size: 16px;
  line-height: 1.8;
}

.page-privacy .pv-head__meta {
  margin: 0;
  color: var(--steel);
  padding-left: 14px;
  border-left: 2px solid var(--apple-deep);
}

/* ---------- 数据流向带 ---------- */

.page-privacy .pv-flow {
  margin: 0 0 clamp(30px, 4.5vw, 56px);
  padding: clamp(16px, 2.6vw, 30px) 0;
  background: var(--grad-cool);
  border-top: 1px solid rgba(125, 242, 176, 0.14);
  border-bottom: 1px solid rgba(125, 242, 176, 0.14);
}

.page-privacy .pv-flow__frame {
  margin: 0;
  border-radius: var(--r-m);
  overflow: hidden;
}

.page-privacy .pv-flow__frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

.page-privacy .pv-flow__frame .media-frame__caption {
  padding: 10px 2px 0;
  color: var(--steel);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  line-height: 1.6;
}

/* ---------- 条款索引 ---------- */

.page-privacy .pv-toc {
  margin: 0 0 clamp(30px, 4.5vw, 56px);
}

.page-privacy .pv-toc__label {
  margin: 0 0 14px;
  color: var(--steel);
  letter-spacing: 0.18em;
}

.page-privacy .pv-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
}

.page-privacy .pv-toc__list a {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 4px;
  border-bottom: 1px solid var(--pv-line-soft);
  color: var(--mist);
  text-decoration: none;
  font-size: 15px;
  line-height: 1.5;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-privacy .pv-toc__list a:hover,
.page-privacy .pv-toc__list a:focus-visible {
  color: var(--white);
  border-bottom-color: var(--apple);
  background-color: rgba(125, 242, 176, 0.05);
  outline: none;
}

.page-privacy .pv-toc__list a:focus-visible {
  box-shadow: inset 0 0 0 1px var(--apple);
}

.page-privacy .pv-toc__no {
  flex: 0 0 auto;
  color: var(--apple-deep);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.page-privacy .pv-toc__list a:hover .pv-toc__no,
.page-privacy .pv-toc__list a:focus-visible .pv-toc__no {
  color: var(--apple);
}

/* ---------- 左侧固定章节索引 ---------- */

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

.page-privacy .pv-index .chapter-dot {
  appearance: none;
  border: 0;
  background: transparent;
  padding: 2px 0;
  color: var(--steel);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  line-height: 1.2;
  cursor: pointer;
  transition: color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-privacy .pv-index .chapter-dot:hover,
.page-privacy .pv-index .chapter-dot:focus-visible {
  color: var(--white);
  outline: none;
}

.page-privacy .pv-index .chapter-dot:focus-visible {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-privacy .pv-index .chapter-dot.is-current {
  color: var(--apple);
  transform: translateX(3px);
}

/* ---------- 条款正文 ---------- */

.page-privacy .pv-body {
  position: relative;
}

.page-privacy .pv-section {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: clamp(28px, 4.2vw, 46px) 0;
  border-top: 1px solid var(--pv-line-soft);
}

.page-privacy .pv-section:first-child {
  border-top: 0;
  padding-top: clamp(8px, 1.5vw, 14px);
}

.page-privacy .pv-section__no {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  color: var(--steel);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
}

.page-privacy .pv-section__no::after {
  content: "";
  flex: 0 0 30px;
  height: 1px;
  background: linear-gradient(90deg, var(--steel), transparent);
}

.page-privacy .pv-section__title {
  font-family: var(--font-serif);
  font-size: clamp(23px, 3.1vw, 31px);
  font-weight: 600;
  line-height: 1.32;
  margin: 0 0 clamp(14px, 2vw, 20px);
  color: var(--white);
}

.page-privacy .pv-section .prose {
  max-width: var(--pv-prose-max);
  font-size: 16px;
  line-height: 1.8;
  color: var(--mist);
}

.page-privacy .pv-section .prose p {
  margin: 0 0 14px;
}

.page-privacy .pv-section .prose p:last-child {
  margin-bottom: 0;
}

.page-privacy .pv-section .prose a {
  color: var(--apple);
  text-decoration: none;
  border-bottom: 1px solid rgba(125, 242, 176, 0.45);
  transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}

.page-privacy .pv-section .prose a:hover,
.page-privacy .pv-section .prose a:focus-visible {
  color: var(--white);
  border-bottom-color: var(--white);
  outline: none;
}

/* 条款条目列表 */

.page-privacy .pv-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-privacy .pv-list:last-child {
  margin-bottom: 0;
}

.page-privacy .pv-list li {
  position: relative;
  padding-left: 18px;
  line-height: 1.8;
}

.page-privacy .pv-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.75em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--apple-deep);
  opacity: 0.75;
}

.page-privacy .pv-list li b {
  color: var(--white);
  font-weight: 600;
}

/* 关键术语 */

.page-privacy .pv-kw {
  color: var(--amber);
  border-bottom: 1px solid var(--pv-amber-line);
  padding-bottom: 1px;
}

/* ---------- 平板与桌面 ---------- */

@media (min-width: 720px) {
  .page-privacy .pv-toc__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 32px;
  }

  .page-privacy .pv-toc__list li:nth-child(1) a,
  .page-privacy .pv-toc__list li:nth-child(2) a {
    border-top: 1px solid var(--pv-line-soft);
  }

  .page-privacy .pv-section {
    grid-template-columns: 72px minmax(0, 1fr);
    column-gap: 28px;
  }

  .page-privacy .pv-section__no {
    align-self: start;
    padding-top: 9px;
  }

  .page-privacy .pv-section__no::after {
    flex-basis: 20px;
  }
}

@media (min-width: 1024px) {
  .page-privacy .pv-section {
    grid-template-columns: 88px minmax(0, 1fr);
    column-gap: 36px;
  }
}

@media (min-width: 1360px) {
  .page-privacy .pv-index {
    position: fixed;
    left: max(20px, calc((100vw - var(--maxw)) / 2 - 62px));
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 13px;
    z-index: 4;
    padding: 10px 0;
  }
}

/* ---------- 动效降级 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-privacy .pv-toc__list a,
  .page-privacy .pv-index .chapter-dot,
  .page-privacy .pv-section .prose a {
    transition: none;
  }
}
</main>