.page-privacy {
  --pv-line: rgba(30, 58, 90, 0.55);
  --pv-line-soft: rgba(30, 58, 90, 0.36);
  --pv-measure: 44rem;
  padding-bottom: 56px;
}

/* ---------- 首屏 ---------- */
.page-privacy .pv-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--pv-line);
  background:
    radial-gradient(120% 90% at 88% -20%, rgba(22, 224, 212, 0.16), transparent 62%),
    radial-gradient(90% 80% at 4% -10%, rgba(90, 99, 255, 0.13), transparent 66%),
    linear-gradient(180deg, #061527 0%, #08192c 100%);
}

.page-privacy .pv-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(
    180deg,
    rgba(138, 164, 192, 0.07) 0 1px,
    transparent 1px 6px
  );
  opacity: 0.7;
}

.page-privacy .pv-hero-inner {
  position: relative;
  z-index: 1;
  padding-top: 22px;
  padding-bottom: 24px;
}

.page-privacy .pv-hero .breadcrumb {
  margin-bottom: 14px;
  font-size: 13px;
}

.page-privacy .pv-eyebrow {
  margin: 0;
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--c-cyan);
}

.page-privacy h1 {
  margin: 12px 0 0;
  max-width: 22ch;
  font-family: var(--font-head);
  font-size: clamp(29px, 5.4vw, 46px);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--c-white);
}

.page-privacy .pv-lede {
  max-width: 40rem;
  margin: 16px 0 0;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.75;
  color: var(--c-mist);
}

.page-privacy .pv-facts {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
}

.page-privacy .pv-facts li {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 13px 15px;
  border: 1px solid var(--pv-line);
  border-radius: 10px;
  background: rgba(13, 36, 64, 0.64);
  box-shadow: inset 0 1px 0 rgba(234, 243, 251, 0.05);
}

.page-privacy .pv-facts-num {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--c-cyan);
}

.page-privacy .pv-facts-label {
  font-size: 13px;
  line-height: 1.6;
  color: var(--c-steel);
}

.page-privacy .pv-hero-media {
  position: relative;
  z-index: 1;
  padding-bottom: 30px;
}

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

/* ---------- 主体栅格 ---------- */
.page-privacy .pv-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 26px;
  padding-top: 28px;
}

/* ---------- 章节索引 ---------- */
.page-privacy .pv-toc {
  padding: 16px 15px 14px;
  border: 1px solid var(--pv-line);
  border-radius: 12px;
  background: linear-gradient(180deg, rgba(13, 36, 64, 0.92), rgba(6, 21, 39, 0.78));
}

.page-privacy .pv-toc-title {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--c-steel);
}

.page-privacy .pv-toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
  counter-reset: none;
}

.page-privacy .pv-toc-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 8px 10px 8px 11px;
  border-left: 2px solid transparent;
  border-radius: 0 6px 6px 0;
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--c-steel);
  text-decoration: none;
  transition: color 240ms var(--ease-out), background-color 240ms var(--ease-out),
    border-color 240ms var(--ease-out);
}

.page-privacy .pv-toc-link:hover,
.page-privacy .pv-toc-link:focus-visible {
  color: var(--c-mist);
  background: rgba(22, 224, 212, 0.08);
  border-left-color: rgba(22, 224, 212, 0.6);
}

.page-privacy .pv-toc-link[aria-current="true"] {
  color: var(--c-cyan);
  background: rgba(22, 224, 212, 0.1);
  border-left-color: var(--c-cyan);
}

.page-privacy .pv-toc-num {
  flex: none;
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--c-cyan);
  opacity: 0.85;
}

.page-privacy .pv-toc-note {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--pv-line-soft);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--c-steel);
}

.page-privacy .pv-toc-note a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(22, 224, 212, 0.4);
}

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

/* ---------- 正文文档流 ---------- */
.page-privacy .pv-doc {
  position: relative;
  min-width: 0;
  max-width: var(--pv-measure);
}

.page-privacy .pv-section {
  padding: 28px 0 30px;
  border-top: 1px solid var(--pv-line-soft);
}

.page-privacy .pv-section:first-child {
  padding-top: 4px;
  border-top: 0;
}

.page-privacy .pv-sec-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 14px;
}

.page-privacy .pv-sec-num {
  flex: none;
  padding: 3px 8px;
  border: 1px solid rgba(22, 224, 212, 0.4);
  border-radius: 5px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--c-cyan);
}

.page-privacy .pv-sec-title {
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(21px, 2.8vw, 27px);
  font-weight: 800;
  line-height: 1.32;
  letter-spacing: -0.01em;
  color: var(--c-white);
}

.page-privacy .pv-text {
  max-width: var(--pv-measure);
  margin: 0 0 18px;
  font-size: 16.5px;
  line-height: 1.78;
  color: var(--c-mist);
}

.page-privacy .pv-text--tight {
  margin-top: 16px;
  margin-bottom: 0;
  font-size: 15px;
  color: var(--c-steel);
}

.page-privacy .pv-text a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(22, 224, 212, 0.4);
}

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

/* ---------- 三类信息卡片 ---------- */
.page-privacy .pv-fields {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 13px;
}

.page-privacy .pv-field {
  position: relative;
  padding: 18px 16px 15px;
  border: 1px solid var(--pv-line);
  border-radius: 11px;
  background: linear-gradient(180deg, #0d2440 0%, #0a1d33 100%);
  box-shadow: inset 0 1px 0 rgba(234, 243, 251, 0.06), 0 1px 0 rgba(0, 0, 0, 0.25);
}

.page-privacy .pv-field::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 15px;
  right: 15px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--c-cyan), rgba(22, 224, 212, 0));
  opacity: 0.6;
}

.page-privacy .pv-field-title {
  margin: 0 0 11px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--c-cyan);
}

.page-privacy .pv-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-privacy .pv-list li {
  position: relative;
  padding-left: 15px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--c-mist);
}

.page-privacy .pv-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  border-radius: 2px;
  background: var(--c-cyan);
  opacity: 0.75;
}

.page-privacy .pv-list--wide li {
  font-size: 15px;
  color: var(--c-mist);
}

.page-privacy .pv-list--wide li::before {
  background: var(--c-green);
}

/* ---------- 用途清单 ---------- */
.page-privacy .pv-uses {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--pv-line-soft);
}

.page-privacy .pv-use {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
  border-bottom: 1px solid var(--pv-line-soft);
}

.page-privacy .pv-use-num {
  flex: none;
  font-size: 13px;
  line-height: 1.9;
  letter-spacing: 0.08em;
  color: var(--c-cyan);
}

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

.page-privacy .pv-use-title {
  margin: 0 0 6px;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--c-white);
}

.page-privacy .pv-use-body p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-mist);
}

/* ---------- 保存期限 ---------- */
.page-privacy .pv-keep {
  display: grid;
  gap: 10px;
}

.page-privacy .pv-keep-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 5px;
  padding: 13px 15px;
  border-left: 2px solid var(--c-cyan);
  border-radius: 0 9px 9px 0;
  background: rgba(13, 36, 64, 0.62);
}

.page-privacy .pv-keep-key {
  font-size: 14px;
  font-weight: 700;
  line-height: 1.6;
  color: var(--c-cyan);
}

.page-privacy .pv-keep-val {
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--c-mist);
}

/* ---------- 折叠面板 ---------- */
.page-privacy .pv-open {
  margin-top: 18px;
  border: 1px solid var(--pv-line);
  border-radius: 11px;
  background: rgba(10, 29, 51, 0.72);
  overflow: hidden;
}

.page-privacy .pv-open > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  font-family: var(--font-head);
  font-size: 15px;
  font-weight: 700;
  color: var(--c-mist);
  cursor: pointer;
  list-style: none;
  transition: background-color 240ms var(--ease-out), color 240ms var(--ease-out);
}

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

.page-privacy .pv-open > summary:hover,
.page-privacy .pv-open > summary:focus-visible {
  background: rgba(22, 224, 212, 0.08);
  color: var(--c-white);
}

.page-privacy .pv-open > summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--c-cyan);
}

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

.page-privacy .pv-open-body {
  padding: 2px 16px 18px;
  border-top: 1px solid var(--pv-line-soft);
  animation: pv-fade 180ms var(--ease-out) both;
}

.page-privacy .pv-open-body .pv-list {
  padding-top: 14px;
}

@keyframes pv-fade {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 用户权利 ---------- */
.page-privacy .pv-rights {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.page-privacy .pv-right {
  padding: 15px 16px 14px;
  border: 1px solid var(--pv-line);
  border-radius: 10px;
  background: linear-gradient(155deg, rgba(22, 224, 212, 0.09), rgba(10, 29, 51, 0.72) 62%);
}

.page-privacy .pv-right-title {
  margin: 0 0 7px;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.45;
  color: var(--c-cyan);
}

.page-privacy .pv-right p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--c-mist);
}

/* ---------- 联系信息 ---------- */
.page-privacy .pv-contact {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--pv-line-soft);
}

.page-privacy .pv-contact-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 13px 0;
  border-bottom: 1px solid var(--pv-line-soft);
}

.page-privacy .pv-contact-key {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-steel);
}

.page-privacy .pv-contact-val {
  font-size: 15.5px;
  line-height: 1.65;
  color: var(--c-white);
  word-break: break-word;
}

/* ---------- 回顶 ---------- */
.page-privacy .pv-top {
  margin: 6px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--pv-line-soft);
  font-size: 14px;
}

.page-privacy .pv-top a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(22, 224, 212, 0.4);
}

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

/* ---------- 窄屏到宽屏 ---------- */
@media (min-width: 640px) {
  .page-privacy .pv-facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 13px;
  }

  .page-privacy .pv-keep-row {
    grid-template-columns: 190px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }

  .page-privacy .pv-contact-row {
    grid-template-columns: 120px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }
}

@media (min-width: 760px) {
  .page-privacy .pv-fields {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 960px) {
  .page-privacy .pv-shell {
    grid-template-columns: 224px minmax(0, 1fr);
    gap: 52px;
    padding-top: 38px;
  }

  .page-privacy .pv-toc {
    position: sticky;
    top: 96px;
  }

  .page-privacy .pv-doc {
    padding-left: 28px;
    border-left: 1px solid var(--pv-line-soft);
  }

  .page-privacy .pv-doc::before {
    content: "";
    position: absolute;
    left: -1px;
    top: 0;
    width: 1px;
    height: 104px;
    background: linear-gradient(180deg, var(--c-cyan), rgba(22, 224, 212, 0));
  }

  .page-privacy .pv-section {
    padding: 34px 0 36px;
  }

  .page-privacy .pv-hero-media {
    padding-bottom: 38px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .pv-open-body {
    animation: none;
  }

  .page-privacy .pv-toc-link,
  .page-privacy .pv-open > summary {
    transition: none;
  }
}