/* =========================================
   个人信息说明 /personal-data/
   单栏纵向阅读 · 页面作用域 .page-privacy
   ========================================= */

.page-privacy {
  --pv-measure: 720px;
  --pv-text: rgba(244, 247, 255, 0.72);
  --pv-text-strong: rgba(244, 247, 255, 0.94);
  --pv-dim: rgba(174, 184, 204, 0.7);
  --pv-hair: rgba(42, 47, 61, 0.9);
  --pv-accent: rgba(35, 230, 216, 0.72);
  background: var(--ink);
  color: var(--white);
  padding-bottom: clamp(72px, 10vw, 128px);
}

/* ---------- 顶部抽象纹理横幅 ---------- */
.page-privacy .pv-banner {
  position: relative;
  margin: 0;
  height: clamp(150px, 22vw, 260px);
  overflow: hidden;
  background: var(--hold);
  border-bottom: 1px solid var(--line);
}

.page-privacy .pv-banner img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: 100%;
  opacity: 0.6;
}

.page-privacy .pv-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(
    180deg,
    rgba(5, 6, 11, 0.3) 0%,
    rgba(5, 6, 11, 0.82) 62%,
    var(--ink) 100%
  );
}

/* ---------- 窄阅读栏 ---------- */
.page-privacy .pv-shell {
  width: 100%;
  max-width: var(--pv-measure);
  margin: 0 auto;
}

.page-privacy .pv-crumb {
  padding-top: clamp(28px, 4vw, 48px);
}

.page-privacy .pv-head {
  padding: clamp(32px, 5vw, 60px) 0 clamp(28px, 4vw, 44px);
}

.page-privacy .pv-head .en-label {
  display: block;
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-6);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--pv-dim);
}

.page-privacy .pv-head h1 {
  margin: 0 0 20px;
  max-width: 16ch;
  font-family: var(--font-cn);
  font-size: var(--fs-1);
  font-weight: 900;
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-privacy .pv-lede {
  margin: 0;
  max-width: 34em;
  font-size: var(--fs-body);
  line-height: 1.9;
  color: var(--pv-text);
}

/* ---------- 章节索引（吸顶） ---------- */
.page-privacy .pv-index {
  position: sticky;
  top: 78px;
  z-index: 6;
  background: rgba(5, 6, 11, 0.94);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-privacy .pv-index__list {
  display: flex;
  gap: clamp(14px, 2.6vw, 30px);
  margin: 0 auto;
  padding: 13px 0;
  max-width: var(--pv-measure);
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

.page-privacy .pv-index__list::-webkit-scrollbar {
  display: none;
}

.page-privacy .pv-index__list a {
  display: inline-block;
  padding-bottom: 3px;
  font-family: var(--font-mono);
  font-size: var(--fs-6);
  letter-spacing: 0.08em;
  white-space: nowrap;
  color: var(--pv-dim);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-privacy .pv-index__list a:hover,
.page-privacy .pv-index__list a:focus-visible {
  color: var(--white);
  border-bottom-color: var(--pv-accent);
}

/* ---------- 条款 ---------- */
.page-privacy .pv-clauses {
  margin-top: clamp(40px, 6vw, 76px);
  border-top: 1px solid var(--pv-hair);
}

.page-privacy .pv-clause {
  border-bottom: 1px solid var(--pv-hair);
  scroll-margin-top: 148px;
}

.page-privacy .pv-clause > summary {
  display: grid;
  grid-template-columns: 48px 1fr 18px;
  align-items: center;
  gap: 14px;
  padding: clamp(24px, 3.4vw, 36px) 0 clamp(10px, 1.6vw, 16px);
  cursor: pointer;
  list-style: none;
}

.page-privacy .pv-clause > summary::-webkit-details-marker {
  display: none;
}

.page-privacy .pv-clause > summary::marker {
  content: "";
}

.page-privacy .pv-clause__num {
  font-family: var(--font-mono);
  font-size: var(--fs-6);
  letter-spacing: 0.14em;
  color: var(--pv-accent);
}

.page-privacy .pv-clause__title {
  margin: 0;
  font-family: var(--font-cn);
  font-size: var(--fs-3);
  font-weight: 900;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--pv-text-strong);
}

.page-privacy .pv-clause__arrow {
  justify-self: end;
  width: 9px;
  height: 9px;
  border-right: 1px solid var(--pv-dim);
  border-bottom: 1px solid var(--pv-dim);
  transform: rotate(45deg);
  transition: transform 0.22s var(--ease);
}

.page-privacy .pv-clause[open] .pv-clause__arrow {
  transform: rotate(-135deg);
}

.page-privacy .pv-clause__body {
  padding: 0 0 clamp(26px, 3.6vw, 42px) 62px;
}

/* ---------- 正文元素 ---------- */
.page-privacy .pv-clause__body p {
  margin: 0 0 16px;
  max-width: 40em;
  font-size: var(--fs-body);
  line-height: 1.92;
  color: var(--pv-text);
}

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

.page-privacy .pv-clause__body a,
.page-privacy .pv-lede a {
  color: var(--pv-text-strong);
  text-decoration: none;
  border-bottom: 1px solid var(--pv-accent);
  transition: color 0.18s var(--ease);
}

.page-privacy .pv-clause__body a:hover,
.page-privacy .pv-lede a:hover {
  color: var(--cyan);
}

/* ---------- 存储清单表 ---------- */
.page-privacy .pv-table-wrap {
  margin: 6px 0 22px;
  border: 1px solid var(--line);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-privacy .pv-table {
  width: 100%;
  min-width: 580px;
  border-collapse: collapse;
  font-size: var(--fs-5);
}

.page-privacy .pv-table caption {
  padding: 11px 14px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: var(--fs-6);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--pv-dim);
  border-bottom: 1px solid var(--line);
}

.page-privacy .pv-table th,
.page-privacy .pv-table td {
  padding: 11px 14px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--line);
}

.page-privacy .pv-table thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--hold);
  font-family: var(--font-mono);
  font-size: var(--fs-6);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  white-space: nowrap;
  color: var(--pv-dim);
}

.page-privacy .pv-table tbody td {
  line-height: 1.65;
  color: var(--pv-text);
}

.page-privacy .pv-table tbody td:first-child {
  font-family: var(--font-mono);
  white-space: nowrap;
  color: var(--pv-text-strong);
}

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

/* ---------- 清除步骤 ---------- */
.page-privacy .pv-steps {
  margin: 4px 0 22px;
  padding: 0;
  list-style: none;
  counter-reset: pvstep;
}

.page-privacy .pv-steps li {
  position: relative;
  counter-increment: pvstep;
  padding-left: 44px;
  margin-bottom: 16px;
  font-size: var(--fs-body);
  line-height: 1.85;
  color: var(--pv-text);
}

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

.page-privacy .pv-steps li::before {
  content: counter(pvstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 4px;
  font-family: var(--font-mono);
  font-size: var(--fs-6);
  letter-spacing: 0.1em;
  color: var(--pv-accent);
}

/* ---------- 边注 ---------- */
.page-privacy .pv-note {
  margin: 0 0 20px;
  padding: 10px 0 10px 18px;
  border-left: 2px solid var(--line);
  font-size: var(--fs-5);
  line-height: 1.8;
  color: var(--pv-dim);
}

.page-privacy .pv-note--alert {
  border-left-color: rgba(255, 77, 109, 0.55);
  color: rgba(174, 184, 204, 0.86);
}

/* ---------- 联系信息块 ---------- */
.page-privacy .pv-contact {
  display: grid;
  gap: 10px;
  margin: 4px 0 22px;
  padding: 18px 20px;
  border: 1px solid var(--line);
}

.page-privacy .pv-contact__row {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 14px;
}

.page-privacy .pv-contact__key {
  min-width: 56px;
  font-family: var(--font-mono);
  font-size: var(--fs-6);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--pv-dim);
}

.page-privacy .pv-contact__val {
  font-family: var(--font-mono);
  font-size: var(--fs-5);
  line-height: 1.6;
  color: var(--pv-text-strong);
  word-break: break-word;
}

/* ---------- 窄屏适配 ---------- */
@media (max-width: 720px) {
  .page-privacy .pv-index {
    top: 66px;
  }

  .page-privacy .pv-index__list {
    padding: 11px 0;
    gap: 16px;
  }

  .page-privacy .pv-clause {
    scroll-margin-top: 128px;
  }

  .page-privacy .pv-clause > summary {
    grid-template-columns: 30px 1fr 16px;
    gap: 9px;
  }

  .page-privacy .pv-clause__title {
    font-size: var(--fs-4);
  }

  .page-privacy .pv-clause__body {
    padding-left: 39px;
  }

  .page-privacy .pv-steps li {
    padding-left: 36px;
  }

  .page-privacy .pv-contact {
    padding: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .pv-clause__arrow,
  .page-privacy .pv-index__list a,
  .page-privacy .pv-clause__body a {
    transition: none;
  }
}