.page-privacy {
  --privacy-doc-width: 38em;
  --privacy-toc-width: 232px;
  background: var(--ink-900);
  color: var(--white-100);
}

/* 首屏 */
.page-privacy .privacy-hero {
  position: relative;
  overflow: hidden;
  padding: 40px 0 56px;
  border-bottom: var(--line);
}

.page-privacy .privacy-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.22;
  pointer-events: none;
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0) 88%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9) 0%, rgba(0, 0, 0, 0) 88%);
}

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

.page-privacy .privacy-hero__title {
  margin: 14px 0 0;
  max-width: 15em;
  font-size: clamp(34px, 5.2vw, 62px);
  line-height: 1.12;
  color: var(--white-100);
}

.page-privacy .privacy-hero__lead {
  margin: 20px 0 0;
  max-width: 34em;
}

.page-privacy .privacy-meta {
  list-style: none;
  margin: 34px 0 0;
  padding: 20px 0 0;
  border-top: var(--line);
  display: grid;
  gap: 16px;
}

.page-privacy .privacy-meta__item {
  display: grid;
  gap: 6px;
}

.page-privacy .privacy-meta__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan-500);
}

.page-privacy .privacy-meta__val {
  font-size: 15px;
  line-height: 1.6;
  color: var(--mist-300);
}

/* 正文骨架 */
.page-privacy .privacy-body {
  padding: 48px 0 72px;
}

.page-privacy .privacy-layout {
  display: grid;
  gap: 40px;
}

/* 目录 */
.page-privacy .privacy-toc {
  align-self: start;
}

.page-privacy .privacy-toc__title {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan-500);
  text-transform: uppercase;
}

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

.page-privacy .privacy-toc__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px;
  border-left: 2px solid var(--ink-600);
  color: var(--mist-300);
  font-size: 14px;
  line-height: 1.45;
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease);
}

.page-privacy .privacy-toc__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-600);
  transition: color 0.2s var(--ease);
}

.page-privacy .privacy-toc__link:hover,
.page-privacy .privacy-toc__link:focus-visible {
  color: var(--cyan-300);
  border-left-color: var(--cyan-500);
  background: var(--ink-800);
}

.page-privacy .privacy-toc__link:hover .privacy-toc__num,
.page-privacy .privacy-toc__link:focus-visible .privacy-toc__num,
.page-privacy .privacy-toc__link.is-active .privacy-toc__num {
  color: var(--cyan-500);
}

.page-privacy .privacy-toc__link.is-active {
  color: var(--cyan-300);
  border-left-color: var(--cyan-500);
  background: var(--ink-800);
}

.page-privacy .privacy-toc__top {
  display: inline-block;
  margin-top: 16px;
  padding-left: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist-300);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-privacy .privacy-toc__top:hover {
  color: var(--orange-300);
  border-bottom-color: var(--orange-500);
}

/* 条款 */
.page-privacy .clause {
  padding-top: 26px;
  border-top: var(--line);
  scroll-margin-top: 104px;
}

.page-privacy .clause + .clause {
  margin-top: 52px;
}

.page-privacy .clause__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 18px;
}

.page-privacy .clause__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--cyan-500);
  flex: none;
}

.page-privacy .clause__title {
  margin: 0;
  font-family: var(--font-head);
  font-size: 21px;
  line-height: 1.35;
  font-weight: 700;
  color: var(--white-100);
}

.page-privacy .clause__body > p {
  max-width: var(--privacy-doc-width);
  margin: 0 0 1.15em;
  font-size: 17px;
  line-height: 1.85;
  color: var(--white-100);
}

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

.page-privacy .clause__note {
  max-width: var(--privacy-doc-width);
  margin: 20px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist-300);
}

.page-privacy .clause__body a {
  color: var(--cyan-300);
  text-decoration: none;
  border-bottom: 1px solid var(--ink-600);
}

.page-privacy .clause__body a:hover {
  border-bottom-color: var(--cyan-500);
}

/* 四类信息 */
.page-privacy .info-grid {
  display: grid;
  gap: 14px;
  margin: 24px 0 26px;
}

.page-privacy .info-card {
  border: var(--line);
  border-radius: var(--radius-sm);
  background: var(--ink-800);
  padding: 18px;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-privacy .info-card:hover {
  border-color: var(--cyan-500);
  transform: translateY(-4px);
}

.page-privacy .info-card__tag {
  display: inline-block;
  margin-bottom: 10px;
  padding: 3px 8px;
  border: 1px solid var(--ink-600);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan-500);
}

.page-privacy .info-card p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--mist-300);
}

/* 用途列表 */
.page-privacy .use-list {
  list-style: none;
  margin: 22px 0 24px;
  padding: 0;
  display: grid;
  gap: 14px;
  max-width: var(--privacy-doc-width);
}

.page-privacy .use-list li {
  position: relative;
  padding-left: 26px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--white-100);
}

.page-privacy .use-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 12px;
  height: 1px;
  background: var(--cyan-500);
}

/* 强调块 */
.page-privacy .callout {
  max-width: var(--privacy-doc-width);
  margin: 26px 0 0;
  padding: 18px 20px;
  background: var(--paper-200);
  color: var(--ink-900);
  border-left: 4px solid var(--orange-500);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.page-privacy .callout strong {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink-700);
}

.page-privacy .callout p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink-900);
}

/* 折叠详情 */
.page-privacy .disclosure {
  margin-top: 24px;
}

.page-privacy .disclosure[aria-expanded="true"] {
  border-color: var(--cyan-500);
  color: var(--cyan-300);
}

.page-privacy .disclosure-panel {
  max-width: var(--privacy-doc-width);
  margin-top: 16px;
  padding: 18px 20px;
  border: var(--line);
  border-radius: var(--radius-sm);
  background: var(--ink-800);
}

.page-privacy .disclosure-panel[hidden] {
  display: none;
}

.page-privacy .disclosure-panel p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist-300);
}

.page-privacy .disclosure-panel p:last-child {
  margin-bottom: 0;
}

/* 联系方式 */
.page-privacy .policy-contact {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
  max-width: var(--privacy-doc-width);
}

.page-privacy .policy-contact__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding: 14px 16px;
  border: var(--line);
  border-radius: var(--radius-sm);
  background: var(--ink-800);
}

.page-privacy .policy-contact__key {
  flex: none;
  min-width: 68px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan-500);
}

.page-privacy .policy-contact__val {
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--white-100);
  word-break: break-all;
}

/* 底部路径 */
.page-privacy .privacy-paths {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 56px;
  padding-top: 26px;
  border-top: var(--line);
}

/* 桌面端 */
@media (min-width: 720px) {
  .page-privacy .privacy-hero {
    padding: 56px 0 72px;
  }

  .page-privacy .privacy-meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
  }

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

@media (min-width: 1000px) {
  .page-privacy .privacy-body {
    padding: 72px 0 96px;
  }

  .page-privacy .privacy-layout {
    grid-template-columns: var(--privacy-toc-width) minmax(0, 1fr);
    gap: 64px;
  }

  .page-privacy .privacy-toc {
    position: sticky;
    top: 104px;
  }

  .page-privacy .clause + .clause {
    margin-top: 64px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-toc__link,
  .page-privacy .info-card {
    transition: none;
  }

  .page-privacy .info-card:hover {
    transform: none;
  }
}