.page-privacy {
  display: block;
  background: var(--ink);
  color: var(--paper);
  overflow-x: hidden;
}

.page-privacy * {
  min-width: 0;
}

/* ---------- 首屏 ---------- */

.page-privacy .privacy-mast {
  position: relative;
  padding: 22px 0 clamp(40px, 7vw, 76px);
  background-color: var(--ink);
  background-image:
    linear-gradient(var(--line-faint) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-faint) 1px, transparent 1px);
  background-size: 64px 64px;
  border-bottom: 1px solid var(--line-soft);
}

.page-privacy .privacy-mast::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(120% 80% at 18% 0%, rgba(53, 242, 208, 0.13), transparent 62%);
  pointer-events: none;
}

.page-privacy .privacy-mast .wrap {
  position: relative;
  z-index: 1;
}

.page-privacy .privacy-mast .crumbs {
  margin-bottom: clamp(22px, 4vw, 40px);
}

.page-privacy .mast-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  align-items: end;
}

.page-privacy .mast-copy h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(32px, 7.4vw, 66px);
  font-weight: 700;
  line-height: 1.03;
  letter-spacing: -0.02em;
  color: var(--paper);
}

.page-privacy .mast-copy .lede {
  margin-top: 18px;
  max-width: 44ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--moss);
}

.page-privacy .mast-meta {
  margin: 20px 0 0;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--glaze);
}

.page-privacy .mast-figure {
  border-color: var(--line-soft);
}

.page-privacy .mast-figure .figure__caption {
  color: var(--moss);
  font-size: 12px;
  letter-spacing: 0.04em;
}

/* ---------- 文档主体 ---------- */

.page-privacy .privacy-doc {
  padding: clamp(36px, 6vw, 76px) 0 clamp(48px, 7vw, 96px);
  background: var(--forest);
}

.page-privacy .doc-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

/* 目录（移动端置顶，两列紧凑排布） */

.page-privacy .doc-toc {
  border-top: 2px solid var(--neon);
  padding-top: 14px;
}

.page-privacy .doc-toc__label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--moss);
}

.page-privacy .doc-toc__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px;
}

.page-privacy .doc-toc__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 8px 8px 10px;
  border-left: 2px solid transparent;
  font-size: 13.5px;
  line-height: 1.4;
  color: var(--line);
  text-decoration: none;
  transition: color 180ms var(--ease), border-color 180ms var(--ease), background-color 180ms var(--ease);
}

.page-privacy .doc-toc__num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--moss);
  flex: none;
}

.page-privacy .doc-toc__link:hover,
.page-privacy .doc-toc__link:focus-visible {
  color: var(--neon);
  border-left-color: var(--neon);
  background: var(--neon-wash);
}

.page-privacy .doc-toc__link:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
}

.page-privacy .doc-toc__note {
  margin: 14px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--moss);
}

/* 条款卡片 */

.page-privacy .doc-main {
  display: grid;
  gap: 16px;
}

.page-privacy .doc-sec {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--glaze);
  box-shadow: 8px 8px 0 -4px rgba(53, 242, 208, 0.09);
  transition: border-left-color 200ms var(--ease);
}

.page-privacy .doc-sec[open] {
  border-left-color: var(--neon);
}

.page-privacy .doc-sec__head {
  list-style: none;
  cursor: pointer;
}

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

.page-privacy .doc-sec__title {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0;
  padding: 16px 18px 15px;
  font-family: var(--font-display);
  font-size: clamp(18px, 3.6vw, 24px);
  font-weight: 700;
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-privacy .doc-sec__num {
  flex: none;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--neon);
  padding: 2px 6px;
  border: 1px solid var(--line-soft);
}

.page-privacy .doc-sec__title::after {
  content: "";
  flex: none;
  margin-left: auto;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--neon);
  border-bottom: 2px solid var(--neon);
  transform: rotate(45deg) translateY(-2px);
  transition: transform 200ms var(--ease);
}

.page-privacy .doc-sec:not([open]) .doc-sec__title::after {
  transform: rotate(-135deg) translateY(-2px);
}

.page-privacy .doc-sec__head:hover .doc-sec__title {
  color: var(--neon);
}

.page-privacy .doc-sec__head:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: -3px;
}

.page-privacy .doc-sec__body {
  padding: 0 18px 20px;
  border-top: 1px solid var(--line-faint);
}

.page-privacy .doc-sec__body p {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--paper);
}

.page-privacy .doc-sec__body p.doc-note {
  margin-top: 16px;
  padding-left: 12px;
  border-left: 2px solid var(--line-soft);
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--moss);
}

.page-privacy .doc-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 13px;
}

.page-privacy .doc-list > li {
  position: relative;
  padding-left: 19px;
  font-size: 15px;
  line-height: 1.76;
  color: var(--paper);
}

.page-privacy .doc-list > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.66em;
  width: 7px;
  height: 7px;
  background: var(--neon);
  transform: rotate(45deg);
}

.page-privacy .doc-list strong {
  color: var(--neon);
  font-weight: 600;
}

/* 设备同步示意 */

.page-privacy .sync-visual {
  margin: 20px 0 0;
  padding: 14px 12px 12px;
  background: var(--forest-deep);
  border: 1px solid var(--line-faint);
}

.page-privacy .sync-visual__svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-privacy .sv-device {
  fill: none;
  stroke: var(--line);
  stroke-width: 1.5;
  transition: stroke 180ms var(--ease);
}

.page-privacy .sv-link {
  fill: none;
  stroke: var(--neon);
  stroke-width: 1.4;
  stroke-dasharray: 4 5;
  opacity: 0.72;
}

.page-privacy .sv-node {
  fill: var(--amber);
}

.page-privacy .sv-label {
  fill: var(--moss);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  transition: fill 180ms var(--ease);
}

.page-privacy .sv-dev:hover .sv-device {
  stroke: var(--neon);
}

.page-privacy .sv-dev:hover .sv-label {
  fill: var(--paper);
}

.page-privacy .sync-visual__cap {
  margin: 10px 2px 0;
  font-size: 12.5px;
  line-height: 1.68;
  color: var(--moss);
}

/* 联络卡片 */

.page-privacy .contact-card {
  margin-top: 20px;
  padding: 16px;
  background: var(--forest-deep);
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--amber);
}

.page-privacy .contact-card__label {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--amber);
}

.page-privacy .contact-card__list {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-privacy .contact-card__list > li {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding-bottom: 9px;
  border-bottom: 1px solid var(--line-faint);
}

.page-privacy .contact-card__list > li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-privacy .contact-card__key {
  font-size: 12.5px;
  color: var(--moss);
  letter-spacing: 0.06em;
}

.page-privacy .contact-card__val {
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper);
  overflow-wrap: anywhere;
}

.page-privacy .contact-card__note {
  margin: 14px 0 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--moss);
}

/* 相关链接 */

.page-privacy .doc-related {
  margin-top: 6px;
  padding-top: 18px;
  border-top: 1px solid var(--line-soft);
  display: grid;
  gap: 4px;
}

.page-privacy .doc-related__label {
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--moss);
}

.page-privacy .doc-related__link {
  display: block;
  padding: 9px 0 9px 16px;
  border-left: 2px solid transparent;
  font-size: 14px;
  line-height: 1.6;
  color: var(--line);
  text-decoration: none;
  transition: color 180ms var(--ease), border-color 180ms var(--ease), padding-left 180ms var(--ease);
}

.page-privacy .doc-related__link:hover,
.page-privacy .doc-related__link:focus-visible {
  color: var(--neon);
  border-left-color: var(--neon);
  padding-left: 20px;
}

.page-privacy .doc-related__link:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
}

/* ---------- 断点 ---------- */

@media (min-width: 640px) {
  .page-privacy .doc-toc__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-privacy .doc-sec__title {
    padding: 18px 22px 17px;
  }

  .page-privacy .doc-sec__body {
    padding: 0 22px 24px;
  }

  .page-privacy .contact-card {
    padding: 20px;
  }

  .page-privacy .contact-card__list > li {
    grid-template-columns: 60px minmax(0, 1fr);
  }
}

@media (min-width: 900px) {
  .page-privacy .mast-grid {
    grid-template-columns: minmax(0, 1.18fr) minmax(0, 0.82fr);
    gap: 48px;
  }

  .page-privacy .mast-copy .lede {
    font-size: 16px;
  }

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

@media (min-width: 1000px) {
  .page-privacy .doc-grid {
    grid-template-columns: minmax(0, 1fr) 272px;
    gap: 56px;
  }

  .page-privacy .doc-main {
    grid-column: 1;
    grid-row: 1;
  }

  .page-privacy .doc-toc {
    grid-column: 2;
    grid-row: 1;
    position: sticky;
    top: 104px;
    padding-bottom: 8px;
  }

  .page-privacy .doc-toc__list {
    grid-template-columns: minmax(0, 1fr);
    gap: 1px;
  }

  .page-privacy .doc-toc__link {
    font-size: 14px;
    padding: 9px 10px 9px 12px;
  }

  .page-privacy .doc-sec__title {
    font-size: 24px;
  }

  .page-privacy .doc-sec__body p,
  .page-privacy .doc-list > li {
    font-size: 15.5px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .doc-toc__link,
  .page-privacy .doc-related__link,
  .page-privacy .doc-sec,
  .page-privacy .doc-sec__title::after,
  .page-privacy .sv-device,
  .page-privacy .sv-label {
    transition: none;
  }
}