.page-privacy {
  --pv-prose: 66ch;
  --pv-rail: 236px;
  background: var(--ink);
  color: var(--silver);
  padding-bottom: clamp(52px, 8vw, 104px);
  overflow-x: clip;
}

/* ============ 页首 ============ */
.page-privacy .privacy-mast {
  padding-top: clamp(22px, 4vw, 42px);
  padding-bottom: clamp(26px, 4vw, 44px);
}

.page-privacy .privacy-mast .breadcrumbs {
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-privacy .privacy-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(32px, 6.4vw, 58px);
  line-height: 1.08;
  letter-spacing: -0.025em;
  color: var(--white);
  margin: 14px 0 20px;
  max-width: 15ch;
}

.page-privacy .privacy-lede {
  max-width: 58ch;
  color: var(--silver);
  font-size: 16.5px;
  line-height: 1.78;
  margin: 0;
}

.page-privacy .privacy-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin-top: 22px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-privacy .privacy-meta__sep {
  color: var(--steel);
}

/* ============ 顶部抽象横幅 ============ */
.page-privacy .privacy-visual {
  margin: 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--graphite);
  overflow: hidden;
}

.page-privacy .privacy-visual img {
  display: block;
  width: 100%;
  height: clamp(160px, 24vw, 300px);
  object-fit: cover;
  filter: saturate(0.82) contrast(1.06) brightness(0.88);
}

.page-privacy .privacy-visual .media-frame__caption {
  display: block;
  padding: 10px 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

/* ============ 正文骨架 ============ */
.page-privacy .privacy-body {
  padding-top: clamp(38px, 6vw, 72px);
}

.page-privacy .privacy-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 5vw, 56px);
}

.page-privacy .privacy-prose {
  max-width: var(--pv-prose);
  min-width: 0;
}

/* ============ 章节 ============ */
.page-privacy .privacy-sec {
  position: relative;
  padding-top: clamp(26px, 4vw, 38px);
  margin-top: clamp(30px, 4.5vw, 48px);
  border-top: 1px solid var(--line);
  scroll-margin-top: calc(var(--header-h) + 26px);
}

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

.page-privacy .privacy-sec:not(:first-child)::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 56px;
  height: 1px;
  background: var(--cyan);
}

.page-privacy .privacy-sec h2 {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 12px 14px;
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 2.7vw, 27px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-privacy .privacy-sec__no {
  flex: none;
  font-size: 11.5px;
  letter-spacing: 0.12em;
  color: var(--cyan);
  padding: 3px 7px;
  border: 1px solid var(--cyan-line);
  border-radius: 2px;
  line-height: 1.4;
}

.page-privacy .privacy-sec p {
  margin: 0 0 14px;
  color: var(--silver);
  font-size: 16.5px;
  line-height: 1.78;
}

.page-privacy .privacy-sec p:last-child {
  margin-bottom: 0;
}

.page-privacy .privacy-sec strong {
  color: var(--white);
  font-weight: 700;
}

/* ============ 编号清单 ============ */
.page-privacy .privacy-list {
  list-style: none;
  counter-reset: pv;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-privacy .privacy-list > li {
  counter-increment: pv;
  position: relative;
  padding-left: 46px;
  font-size: 16px;
  line-height: 1.74;
  color: var(--silver);
}

.page-privacy .privacy-list > li::before {
  content: counter(pv, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-privacy .privacy-list > li::after {
  content: "";
  position: absolute;
  left: 15px;
  top: 22px;
  bottom: -14px;
  width: 1px;
  background: var(--line);
}

.page-privacy .privacy-list > li:last-child::after {
  display: none;
}

/* ============ 侧边索引 ============ */
.page-privacy .privacy-side {
  display: none;
}

.page-privacy .privacy-side__label {
  margin: 0 0 14px;
  padding-bottom: 10px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--mist);
  border-bottom: 1px solid var(--line);
}

.page-privacy .privacy-side .toc {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-privacy .toc-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 12px;
  font-size: 14px;
  line-height: 1.5;
  color: var(--mist);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color var(--t-fast) var(--ease),
              border-color var(--t-fast) var(--ease),
              background-color var(--t-fast) var(--ease);
}

.page-privacy .toc-link .mono {
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--steel);
  transition: color var(--t-fast) var(--ease);
}

.page-privacy .toc-link:hover {
  color: var(--silver);
  border-left-color: var(--cyan-line);
}

.page-privacy .toc-link:hover .mono {
  color: var(--cyan);
}

.page-privacy .toc-link[aria-current="true"] {
  color: var(--cyan);
  border-left-color: var(--cyan);
  background: rgba(34, 227, 214, 0.06);
}

.page-privacy .toc-link[aria-current="true"] .mono {
  color: var(--cyan);
}

.page-privacy .privacy-side__foot {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 12px;
}

.page-privacy .privacy-side__foot .mono {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist);
}

.page-privacy .privacy-side__foot .btn {
  justify-self: start;
}

/* ============ 结尾联系块 ============ */
.page-privacy .privacy-cta {
  margin-top: clamp(48px, 7vw, 88px);
  padding: clamp(24px, 4vw, 38px) clamp(20px, 4vw, 40px);
  background: var(--graphite);
  border: 1px solid var(--line);
  border-left: 3px solid var(--orange);
  display: grid;
  gap: 12px;
}

.page-privacy .privacy-cta__label {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--orange);
}

.page-privacy .privacy-cta__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 2.8vw, 28px);
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-privacy .privacy-cta__text {
  margin: 0;
  max-width: 62ch;
  font-size: 16px;
  line-height: 1.78;
  color: var(--silver);
}

.page-privacy .privacy-cta__text .contact-val {
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 14.5px;
  letter-spacing: 0.02em;
}

.page-privacy .privacy-cta__text a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

.page-privacy .privacy-cta__text a:hover {
  color: var(--white);
}

/* ============ 回到顶部 ============ */
.page-privacy .to-top {
  position: fixed;
  right: clamp(14px, 3vw, 32px);
  bottom: clamp(14px, 3vw, 32px);
  z-index: 40;
  padding: 10px 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink);
  background: var(--orange);
  border: 1px solid var(--orange);
  border-radius: 2px;
  cursor: pointer;
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition: opacity var(--t-base) var(--ease),
              transform var(--t-base) var(--ease),
              background-color var(--t-fast) var(--ease);
}

.page-privacy .to-top.is-in {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.page-privacy .to-top:hover {
  background: var(--orange-deep);
  color: var(--silver);
  border-color: var(--orange-line);
}

.page-privacy .to-top:focus-visible,
.page-privacy .toc-link:focus-visible,
.page-privacy .privacy-cta__text a:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

/* ============ 平板 ============ */
@media (min-width: 700px) {
  .page-privacy .privacy-cta {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* ============ 桌面：正文 + 右侧索引 ============ */
@media (min-width: 960px) {
  .page-privacy .privacy-grid {
    grid-template-columns: minmax(0, 1fr) var(--pv-rail);
    gap: clamp(48px, 6vw, 84px);
    align-items: start;
  }

  .page-privacy .privacy-side {
    display: block;
    position: sticky;
    top: calc(var(--header-h) + 30px);
  }

  .page-privacy .privacy-visual .media-frame__caption {
    padding-left: 2px;
  }
}

/* ============ 大屏 ============ */
@media (min-width: 1180px) {
  .page-privacy .privacy-cta {
    grid-template-columns: 132px minmax(0, 1fr);
    column-gap: 24px;
    align-items: start;
  }

  .page-privacy .privacy-cta__label {
    grid-row: 1;
    padding-top: 6px;
  }

  .page-privacy .privacy-cta__title,
  .page-privacy .privacy-cta__text {
    grid-column: 2;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .to-top,
  .page-privacy .toc-link {
    transition: none;
  }
}