/* ===== 隐私中心 · page-privacy ===== */

.page-privacy {
  --pv-measure: 70ch;
  --pv-radius: 0;
  display: block;
}

/* ---------- 首屏 ---------- */
.page-privacy .pv-hero {
  position: relative;
  padding-block: clamp(20px, 3vw, 34px) clamp(26px, 4vw, 48px);
  background:
    linear-gradient(104deg, rgba(70, 227, 196, 0.055) 0 34%, rgba(70, 227, 196, 0) 34.2%),
    linear-gradient(284deg, rgba(230, 62, 124, 0.05) 0 21%, rgba(230, 62, 124, 0) 21.2%);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.page-privacy .pv-hero .breadcrumb {
  margin-bottom: clamp(20px, 3vw, 34px);
}

.page-privacy .pv-hero__head {
  max-width: 46rem;
}

.page-privacy .pv-hero__title {
  margin: 14px 0 0;
  font-family: var(--font-serif);
  font-size: var(--fs-1);
  font-weight: 700;
  line-height: 1.16;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-wrap: balance;
}

.page-privacy .pv-hero__lede {
  margin-top: 18px;
  max-width: 44rem;
  color: var(--ink);
  opacity: 0.88;
}

.page-privacy .pv-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.page-privacy .pv-hero__art {
  margin-top: clamp(26px, 4vw, 44px);
  border-top: 3px solid var(--cyan);
}

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

/* ---------- 主体网格：目录 + 正文 ---------- */
.page-privacy .pv-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 44px);
  margin-top: clamp(28px, 4.5vw, 56px);
  padding-bottom: clamp(40px, 6vw, 80px);
}

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

/* ---------- 条款目录 ---------- */
.page-privacy .pv-toc {
  align-self: start;
  padding: 18px 16px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-top: 3px solid var(--moss);
}

.page-privacy .pv-toc__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

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

.page-privacy .pv-toc .section-nav__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 6px;
  font-size: var(--fs-3);
  line-height: 1.4;
  color: var(--faint);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color 180ms var(--ease), border-color 180ms var(--ease), background-color 180ms var(--ease);
}

.page-privacy .pv-toc .section-nav__link:hover,
.page-privacy .pv-toc .section-nav__link:focus-visible {
  color: var(--ink);
  background: rgba(70, 227, 196, 0.06);
}

.page-privacy .pv-toc .section-nav__link[aria-current="true"] {
  color: var(--ink);
  border-left-color: var(--magenta);
  background: rgba(230, 62, 124, 0.07);
}

.page-privacy .pv-toc__num {
  flex: none;
  font-size: var(--fs-4);
  color: var(--faint);
  opacity: 0.75;
}

.page-privacy .pv-toc .section-nav__link[aria-current="true"] .pv-toc__num {
  color: var(--cyan);
  opacity: 1;
}

.page-privacy .pv-toc__note {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: var(--fs-4);
  line-height: 1.7;
  color: var(--faint);
}

.page-privacy .pv-toc__note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(70, 227, 196, 0.4);
}

/* ---------- 条款 ---------- */
.page-privacy .pv-clause {
  margin-bottom: clamp(38px, 6vw, 64px);
}

.page-privacy .pv-clause__head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
}

.page-privacy .pv-clause__num {
  flex: none;
  font-size: clamp(1.7rem, 3.4vw, 2.5rem);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--faint);
  opacity: 0.5;
}

.page-privacy .pv-clause__title {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-2);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.3;
  color: var(--ink);
}

.page-privacy .pv-clause__lede {
  margin: 16px 0 0;
  max-width: 42rem;
  font-size: var(--fs-3);
  line-height: 1.75;
  color: var(--ink);
  opacity: 0.82;
}

.page-privacy .pv-clause__note {
  margin-top: 22px;
  padding-left: 16px;
  border-left: 2px solid var(--line);
  font-size: var(--fs-3);
  line-height: 1.75;
  color: var(--faint);
}

.page-privacy .pv-clause__note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(70, 227, 196, 0.4);
}

.page-privacy .pv-clause__note a:hover {
  border-bottom-color: var(--cyan);
}

/* ---------- 折叠条目 ---------- */
.page-privacy .pv-items {
  display: flex;
  flex-direction: column;
  gap: var(--gap);
  margin-top: 22px;
}

.page-privacy .pv-item {
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--cyan);
}

.page-privacy .pv-item--account { border-left-color: var(--moss-lift); }
.page-privacy .pv-item--sync { border-left-color: var(--cyan); }
.page-privacy .pv-item--watch { border-left-color: var(--magenta); }
.page-privacy .pv-item--form { border-left-color: var(--amber); }

.page-privacy .pv-item__summary {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  user-select: none;
}

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

.page-privacy .pv-item__name {
  flex: none;
  font-size: var(--fs-3);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-privacy .pv-item__hint {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: var(--fs-4);
  letter-spacing: 0.02em;
  color: var(--faint);
  text-align: right;
}

.page-privacy .pv-item__summary::after {
  content: "+";
  flex: none;
  width: 1.1em;
  text-align: center;
  font-family: var(--font-mono);
  font-size: var(--fs-3);
  color: var(--cyan);
}

.page-privacy .pv-item[open] .pv-item__summary::after {
  content: "–";
}

.page-privacy .pv-item__summary:hover {
  background: rgba(70, 227, 196, 0.05);
}

.page-privacy .pv-item__body {
  padding: 0 16px 16px;
  border-top: 1px solid var(--line);
}

/* ---------- 字段规格表 ---------- */
.page-privacy .pv-spec {
  margin: 0;
  padding-top: 4px;
}

.page-privacy .pv-spec__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
  padding: 10px 0;
  border-bottom: 1px dashed rgba(42, 54, 66, 0.9);
}

.page-privacy .pv-spec__row:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-privacy .pv-spec dt {
  font-family: var(--font-mono);
  font-size: var(--fs-4);
  letter-spacing: 0.02em;
  color: var(--cyan);
}

.page-privacy .pv-spec dd {
  margin: 0;
  font-size: var(--fs-3);
  line-height: 1.7;
  color: var(--ink);
  opacity: 0.86;
}

/* ---------- 数据流向示意 ---------- */
.page-privacy .pv-flow-wrap {
  margin-top: 26px;
  overflow-x: auto;
  padding-bottom: 6px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  background-image:
    linear-gradient(rgba(147, 163, 176, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(147, 163, 176, 0.055) 1px, transparent 1px);
  background-size: 28px 28px, 28px 28px;
}

.page-privacy .pv-flow {
  display: block;
  width: 100%;
  min-width: 540px;
  height: auto;
}

.page-privacy .pv-flow__links path {
  fill: none;
  stroke: var(--line);
  stroke-width: 1.5;
}

.page-privacy .pv-flow__node rect {
  fill: var(--panel);
  stroke: var(--cyan);
  stroke-width: 1.5;
}

.page-privacy .pv-flow__node text {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  fill: var(--ink);
  text-anchor: middle;
  dominant-baseline: middle;
}

.page-privacy .pv-flow__node .pv-flow__sub {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  fill: var(--faint);
}

.page-privacy .pv-flow__node--core rect {
  stroke: var(--magenta);
  fill: rgba(230, 62, 124, 0.06);
}

.page-privacy .pv-flow__node--out rect {
  stroke: var(--amber);
}

/* ---------- 用途清单 ---------- */
.page-privacy .pv-uses {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap);
}

.page-privacy .pv-use {
  padding: 16px 18px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-top: 3px solid var(--cyan);
}

.page-privacy .pv-use:nth-child(2) { border-top-color: var(--amber); }
.page-privacy .pv-use:nth-child(3) { border-top-color: var(--clay); }
.page-privacy .pv-use:nth-child(4) { border-top-color: var(--moss-lift); }

.page-privacy .pv-use__title {
  margin: 0 0 8px;
  font-size: var(--fs-3);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-privacy .pv-use p {
  margin: 0;
  font-size: var(--fs-3);
  line-height: 1.75;
  color: var(--faint);
}

/* ---------- 保留期限表 ---------- */
.page-privacy .pv-table-wrap {
  margin-top: 24px;
  overflow-x: auto;
  border: 1px solid var(--line);
}

.page-privacy .pv-table {
  width: 100%;
  min-width: 480px;
  border-collapse: collapse;
}

.page-privacy .pv-table caption {
  padding: 12px 14px;
  text-align: left;
  font-size: var(--fs-4);
  letter-spacing: 0.02em;
  color: var(--faint);
  background: var(--panel-2);
  border-bottom: 1px solid var(--line);
}

.page-privacy .pv-table th,
.page-privacy .pv-table td {
  padding: 12px 14px;
  text-align: left;
  vertical-align: top;
  font-size: var(--fs-3);
  line-height: 1.6;
  border-bottom: 1px solid var(--line);
}

.page-privacy .pv-table thead th {
  font-family: var(--font-mono);
  font-size: var(--fs-4);
  letter-spacing: 0.02em;
  color: var(--faint);
  font-weight: 500;
  background: var(--panel-2);
}

.page-privacy .pv-table tbody th {
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
}

.page-privacy .pv-table tbody td {
  color: var(--faint);
}

.page-privacy .pv-table tbody td.mono {
  color: var(--amber);
  white-space: nowrap;
}

.page-privacy .pv-table tbody tr:hover {
  background: rgba(70, 227, 196, 0.05);
}

.page-privacy .pv-table tbody tr:last-child th,
.page-privacy .pv-table tbody tr:last-child td {
  border-bottom: 0;
}

/* ---------- 操作路径 ---------- */
.page-privacy .pv-actions {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  counter-reset: none;
}

.page-privacy .pv-action {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.page-privacy .pv-action:last-child {
  border-bottom: 1px solid var(--line);
}

.page-privacy .pv-action__num {
  font-size: var(--fs-2);
  line-height: 1.1;
  color: var(--faint);
  opacity: 0.45;
}

.page-privacy .pv-action__title {
  margin: 0 0 6px;
  font-size: var(--fs-3);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-privacy .pv-action__body p {
  margin: 0;
  font-size: var(--fs-3);
  line-height: 1.75;
  color: var(--faint);
}

/* ---------- 联系渠道 ---------- */
.page-privacy .pv-channels {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--gap);
}

.page-privacy .pv-channel {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 14px 16px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-left: 3px solid var(--line);
}

.page-privacy .pv-channel--primary {
  border-left-color: var(--amber);
  background: rgba(229, 169, 60, 0.05);
}

.page-privacy .pv-channel__label {
  font-family: var(--font-mono);
  font-size: var(--fs-4);
  letter-spacing: 0.04em;
  color: var(--faint);
}

.page-privacy .pv-channel__value {
  font-size: var(--fs-3);
  line-height: 1.6;
  color: var(--ink);
  word-break: break-word;
}

.page-privacy .pv-channel__value.mono {
  font-family: var(--font-mono);
  letter-spacing: 0.01em;
}

/* ---------- 备案行 ---------- */
.page-privacy .pv-filing {
  margin: 22px 0 0;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: var(--fs-4);
  letter-spacing: 0.02em;
  color: var(--faint);
}

/* ---------- 返回顶部 ---------- */
.page-privacy .to-top {
  border-radius: 0;
}

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

  .page-privacy .pv-channels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-privacy .pv-spec__row {
    grid-template-columns: minmax(148px, 190px) minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-privacy .pv-layout {
    grid-template-columns: 244px minmax(0, 1fr);
    gap: clamp(36px, 5vw, 64px);
    align-items: start;
  }

  .page-privacy .pv-toc {
    position: sticky;
    top: 92px;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
  }

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

  .page-privacy .pv-action {
    grid-template-columns: 48px minmax(0, 1fr);
    gap: 20px;
  }
}

@media (min-width: 1120px) {
  .page-privacy .pv-channels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .pv-toc .section-nav__link {
    transition: none;
  }
}