.page-privacy {
  --priv-rule: rgba(11, 21, 32, 0.14);
  --priv-ink-soft: rgba(11, 21, 32, 0.78);

  background: var(--paper);
  color: var(--ink);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-privacy .priv-hero {
  position: relative;
  isolation: isolate;
  background: var(--ink);
  color: var(--paper);
  border-bottom: 2px solid var(--line);
  padding-block: clamp(20px, 3vw, 34px) clamp(48px, 8vw, 96px);
}

.page-privacy .priv-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(198, 207, 216, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(198, 207, 216, 0.07) 1px, transparent 1px);
  background-size: 72px 72px;
}

.page-privacy .priv-hero .breadcrumbs {
  margin-bottom: clamp(24px, 4vw, 46px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--grey);
}

.page-privacy .priv-hero .breadcrumbs a {
  color: var(--grey);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--step-fast), border-color var(--step-fast);
}

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

.page-privacy .priv-hero .breadcrumbs__sep {
  margin: 0 8px;
  color: var(--line);
  opacity: 0.55;
}

.page-privacy .priv-hero__grid {
  display: grid;
  gap: clamp(28px, 5vw, 52px);
  align-items: center;
}

.page-privacy .priv-hero .eyebrow {
  margin: 0;
  color: var(--cyan);
}

.page-privacy .priv-hero__title {
  margin: 14px 0 0;
  font-size: clamp(32px, 6.4vw, 64px);
  line-height: 1.05;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--paper);
}

.page-privacy .priv-hero .lede {
  max-width: 32em;
  margin: 18px 0 0;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(242, 233, 218, 0.8);
}

.page-privacy .priv-hero__facts {
  list-style: none;
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding: 22px 0 0;
  border-top: 1px solid rgba(198, 207, 216, 0.26);
  display: grid;
  gap: 16px;
}

.page-privacy .priv-hero__fact {
  display: grid;
  gap: 5px;
  padding-left: 14px;
  border-left: 3px solid var(--red);
}

.page-privacy .priv-hero__fact:nth-child(2) {
  border-left-color: var(--yellow);
}

.page-privacy .priv-hero__fact:nth-child(3) {
  border-left-color: var(--cyan);
}

.page-privacy .priv-hero__fact-key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--paper);
}

.page-privacy .priv-hero__fact-val {
  font-size: 14px;
  line-height: 1.65;
  color: rgba(242, 233, 218, 0.7);
}

.page-privacy .priv-hero__media {
  margin: 0;
  aspect-ratio: 12 / 7;
  overflow: hidden;
}

.page-privacy .priv-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 正文骨架 ---------- */
.page-privacy .priv-body {
  padding-block: clamp(40px, 7vw, 96px);
}

.page-privacy .priv-body__grid {
  display: grid;
  gap: clamp(28px, 5vw, 48px);
  align-items: start;
}

/* ---------- 章节目录 ---------- */
.page-privacy .priv-toc {
  border-top: 3px solid var(--ink);
  padding-top: 16px;
}

.page-privacy .priv-toc__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--grey);
}

.page-privacy .priv-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-privacy .priv-toc__link {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 9px 10px;
  border-left: 2px solid var(--priv-rule);
  color: var(--priv-ink-soft);
  font-size: 14.5px;
  line-height: 1.5;
  text-decoration: none;
  transition: border-color var(--step-fast), background-color var(--step-fast), color var(--step-fast);
}

.page-privacy .priv-toc__link:hover,
.page-privacy .priv-toc__link:focus-visible {
  border-left-color: var(--cyan);
  background: rgba(53, 224, 200, 0.12);
  color: var(--ink);
}

.page-privacy .priv-toc__num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--red);
}

/* ---------- 章节 ---------- */
.page-privacy .priv-article {
  min-width: 0;
}

.page-privacy .priv-chapter {
  position: relative;
  padding-block: clamp(26px, 4vw, 42px);
  scroll-margin-top: 140px;
}

.page-privacy .priv-chapter:first-child {
  padding-top: 0;
}

.page-privacy .priv-chapter + .priv-chapter {
  border-top: 1px solid var(--priv-rule);
}

.page-privacy .priv-chapter + .priv-chapter::before {
  content: "";
  position: absolute;
  top: -4px;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
}

.page-privacy .priv-chapter__num {
  display: block;
  margin-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--red);
}

.page-privacy .priv-chapter__title {
  margin: 0 0 14px;
  font-size: clamp(21px, 2.6vw, 30px);
  line-height: 1.25;
  font-weight: 900;
  letter-spacing: -0.015em;
}

.page-privacy .priv-article .prose {
  max-width: 36em;
  margin: 0 0 14px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--priv-ink-soft);
}

.page-privacy .priv-article .prose:last-child {
  margin-bottom: 0;
}

.page-privacy .priv-article .prose a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--cyan);
  transition: background-color var(--step-fast);
}

.page-privacy .priv-article .prose a:hover,
.page-privacy .priv-article .prose a:focus-visible {
  background: rgba(53, 224, 200, 0.22);
}

.page-privacy .priv-sub {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 22px 0 8px;
  font-size: 16px;
  font-weight: 800;
  color: var(--ink);
}

.page-privacy .priv-sub::before {
  content: "";
  flex: none;
  width: 16px;
  height: 3px;
  background: var(--cyan);
}

.page-privacy .priv-sub + .prose {
  margin-top: 0;
}

/* ---------- 用途清单 ---------- */
.page-privacy .priv-uses {
  list-style: none;
  margin: 20px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--priv-rule);
  border-top: 1px solid var(--priv-rule);
  border-bottom: 1px solid var(--priv-rule);
}

.page-privacy .priv-use {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  background: var(--paper);
}

.page-privacy .priv-use__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--red);
}

.page-privacy .priv-use p {
  margin: 0;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--priv-ink-soft);
}

/* ---------- 强调块 ---------- */
.page-privacy .priv-callout {
  max-width: 36em;
  margin: 24px 0 0;
  padding: 18px 20px;
  border-left: 4px solid var(--yellow);
  background: linear-gradient(90deg, rgba(242, 179, 0, 0.28), rgba(242, 179, 0, 0.08));
  font-size: 15.5px;
  line-height: 1.8;
  font-weight: 600;
  color: var(--ink);
}

.page-privacy .priv-callout a {
  color: var(--ink);
  text-decoration: none;
  border-bottom: 2px solid var(--red);
}

/* ---------- 留存表 ---------- */
.page-privacy .priv-table {
  margin-top: 22px;
}

.page-privacy .data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14.5px;
}

.page-privacy .data-table th,
.page-privacy .data-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--priv-rule);
  text-align: left;
  vertical-align: top;
  line-height: 1.7;
}

.page-privacy .data-table th {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--ink);
  background: rgba(217, 205, 182, 0.55);
  border-bottom: 2px solid var(--ink);
}

.page-privacy .data-table td {
  color: var(--priv-ink-soft);
}

.page-privacy .data-table td:first-child {
  font-weight: 700;
  color: var(--ink);
}

/* ---------- 折叠补充 ---------- */
.page-privacy .priv-folds {
  max-width: 36em;
  margin-top: 22px;
}

.page-privacy .fold {
  border: 1px solid var(--priv-rule);
  background: rgba(217, 205, 182, 0.3);
}

.page-privacy .fold + .fold {
  margin-top: 10px;
}

.page-privacy .fold__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  transition: background-color var(--step-fast);
}

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

.page-privacy .fold__summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--red);
}

.page-privacy .fold[open] .fold__summary::after {
  content: "−";
}

.page-privacy .fold__summary:hover {
  background: rgba(53, 224, 200, 0.1);
}

.page-privacy .fold__summary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-privacy .fold__body {
  padding: 0 16px 16px;
}

.page-privacy .fold__body p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--priv-ink-soft);
}

/* ---------- 尾部入口 ---------- */
.page-privacy .priv-cta {
  background: var(--panel);
  color: var(--paper);
  border-top: 2px solid var(--line);
  padding-block: clamp(40px, 6vw, 72px);
}

.page-privacy .priv-cta__inner {
  display: grid;
  gap: 24px;
  align-items: center;
}

.page-privacy .priv-cta .eyebrow {
  margin: 0;
  color: var(--cyan);
}

.page-privacy .priv-cta__title {
  margin: 12px 0;
  font-size: clamp(22px, 3vw, 32px);
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-privacy .priv-cta .prose {
  max-width: 38em;
  margin: 0;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(242, 233, 218, 0.8);
}

.page-privacy .priv-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-privacy .priv-cta__actions .btn--ghost {
  color: var(--paper);
  border-color: var(--line);
}

/* ---------- 响应式 ---------- */
@media (min-width: 768px) {
  .page-privacy .priv-uses {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 32px;
  }

  .page-privacy .priv-use {
    padding: 18px 0;
  }
}

@media (min-width: 860px) {
  .page-privacy .priv-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 40px;
  }
}

@media (min-width: 960px) {
  .page-privacy .priv-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .page-privacy .priv-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-privacy .priv-body__grid {
    grid-template-columns: 200px minmax(0, 1fr);
    gap: clamp(56px, 7vw, 112px);
  }

  .page-privacy .priv-toc {
    border-top: 0;
    padding-top: 0;
  }

  .page-privacy .priv-toc__inner {
    position: sticky;
    top: 132px;
  }

  .page-privacy .priv-chapter__num {
    position: absolute;
    left: -84px;
    top: clamp(26px, 4vw, 42px);
    margin: 0;
    font-size: 48px;
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.02em;
    color: var(--paper-shade);
  }

  .page-privacy .priv-chapter:first-child .priv-chapter__num {
    top: 0;
  }
}