.page-privacy {
  --privacy-read: 46rem;
  padding-bottom: 5rem;
}

/* ---------- 首屏 ---------- */
.page-privacy .privacy-intro {
  padding-block: 3rem 2rem;
  max-width: 62rem;
}

.page-privacy .privacy-intro .eyebrow {
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--c-cyan);
  margin: 0 0 1rem;
}

.page-privacy .privacy-intro .h1 {
  font-size: clamp(1.95rem, 5.4vw, 3.5rem);
  font-weight: 300;
  line-height: 1.12;
  letter-spacing: -.01em;
  color: var(--c-white);
  margin: 0 0 1.4rem;
  max-width: 20ch;
  text-shadow: 0 0 1px rgba(53, 230, 224, .5);
}

.page-privacy .privacy-intro .lead {
  max-width: 42rem;
  margin: 0;
  color: var(--c-text);
  font-size: 1.0625rem;
  line-height: 1.8;
}

/* ---------- 首屏视觉 ---------- */
.page-privacy .privacy-visual {
  margin-bottom: 2.5rem;
}

.page-privacy .privacy-visual .media-frame {
  position: relative;
  margin: 0;
  border: 1px solid var(--c-line);
  background: var(--c-panel);
  overflow: hidden;
}

.page-privacy .privacy-visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-privacy .privacy-visual .media-caption {
  padding: .7rem 1rem;
  border-top: 1px solid var(--c-line);
  color: var(--c-muted);
  font-size: .78rem;
  letter-spacing: .03em;
  line-height: 1.6;
}

/* ---------- 章节索引条 ---------- */
.page-privacy .privacy-toc {
  position: sticky;
  top: var(--header-h);
  z-index: 6;
  padding-block: .7rem .75rem;
  margin-bottom: 2.75rem;
  border-top: 1px solid var(--c-line);
  border-bottom: 1px solid var(--c-line);
  background: rgba(10, 15, 44, .92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.page-privacy .toc-label {
  margin: 0 0 .5rem;
  font-size: .625rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--c-muted);
}

.page-privacy .toc-list {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem 1.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-privacy .toc-list li {
  flex: 0 0 auto;
}

.page-privacy .toc-list a {
  display: inline-flex;
  align-items: baseline;
  gap: .5rem;
  padding-bottom: .3rem;
  border-bottom: 2px solid transparent;
  color: var(--c-text);
  font-size: .875rem;
  text-decoration: none;
  white-space: nowrap;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-privacy .toc-num {
  font-size: .6875rem;
  color: var(--c-muted);
  transition: color .2s var(--ease);
}

.page-privacy .toc-list a:hover,
.page-privacy .toc-list a:focus-visible {
  color: var(--c-cyan);
  border-bottom-color: var(--c-cyan);
}

.page-privacy .toc-list a:hover .toc-num,
.page-privacy .toc-list a:focus-visible .toc-num {
  color: var(--c-cyan);
}

/* ---------- 正文骨架 ---------- */
.page-privacy .privacy-body {
  max-width: var(--privacy-read);
}

.page-privacy .privacy-section {
  padding-block: 2.5rem;
  border-top: 1px solid var(--c-line);
  scroll-margin-top: calc(var(--header-h) + 4.5rem);
}

.page-privacy .privacy-section:first-of-type {
  padding-top: 0;
  border-top: 0;
}

.page-privacy .privacy-head {
  margin-bottom: 1.1rem;
}

.page-privacy .section-num {
  margin: 0 0 .55rem;
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--c-muted);
}

.page-privacy .section-num::before {
  content: "";
  display: inline-block;
  width: 24px;
  height: 2px;
  margin-right: .6rem;
  vertical-align: middle;
  background: var(--c-cyan);
}

.page-privacy .privacy-head .h2 {
  margin: 0;
  font-size: clamp(1.35rem, 3.2vw, 1.85rem);
  font-weight: 400;
  line-height: 1.3;
  letter-spacing: .01em;
  color: var(--c-white);
}

.page-privacy .privacy-text {
  margin: 0;
  max-width: 40rem;
  color: var(--c-text);
  font-size: 1rem;
  line-height: 1.85;
}

/* ---------- 信息三类卡片 ---------- */
.page-privacy .info-grid {
  display: grid;
  gap: 1px;
  margin-top: 1.75rem;
  background: var(--c-line);
  border: 1px solid var(--c-line);
}

.page-privacy .info-card {
  padding: 1.3rem 1.35rem 1.45rem;
  background: var(--c-panel);
  border-left: 2px solid transparent;
  transition: border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-privacy .info-card:hover {
  border-left-color: var(--c-cyan);
  background: #17204c;
}

.page-privacy .info-tag {
  margin: 0 0 .55rem;
  font-size: .625rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

.page-privacy .info-title {
  margin: 0 0 .5rem;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--c-white);
}

.page-privacy .info-text {
  margin: 0;
  color: var(--c-text);
  font-size: .9125rem;
  line-height: 1.78;
}

/* ---------- 强调块 ---------- */
.page-privacy .privacy-callout {
  margin-top: 1.75rem;
  padding: 1rem 1.25rem;
  border-left: 2px solid var(--c-cyan);
  background: linear-gradient(90deg, rgba(53, 230, 224, .08), rgba(19, 26, 63, .75));
  color: var(--c-text);
  font-size: .9125rem;
  line-height: 1.8;
}

.page-privacy .privacy-callout p {
  margin: 0;
}

.page-privacy .privacy-callout--gold {
  border-left-color: var(--c-gold);
  background: linear-gradient(90deg, rgba(232, 180, 90, .09), rgba(19, 26, 63, .75));
}

/* ---------- 使用目的 ---------- */
.page-privacy .purpose-list {
  margin: 1.75rem 0 0;
  padding: 0;
  list-style: none;
}

.page-privacy .purpose-list li {
  position: relative;
  padding: 1.3rem 0 1.3rem 1.6rem;
  border-top: 1px solid var(--c-line);
}

.page-privacy .purpose-list li:last-child {
  border-bottom: 1px solid var(--c-line);
}

.page-privacy .purpose-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.85rem;
  width: 10px;
  height: 2px;
  background: var(--c-cyan);
}

.page-privacy .purpose-tag {
  margin: 0 0 .45rem;
  font-size: .625rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--c-cyan);
}

.page-privacy .purpose-text {
  margin: 0;
  color: var(--c-text);
  font-size: .9125rem;
  line-height: 1.8;
}

/* ---------- 保存与保护 ---------- */
.page-privacy .retention-grid {
  display: grid;
  gap: 1px;
  margin-top: 1.75rem;
  background: var(--c-line);
  border: 1px solid var(--c-line);
}

.page-privacy .retention-cell {
  padding: 1.3rem 1.35rem 1.45rem;
  background: var(--c-panel);
}

.page-privacy .retention-k {
  margin: 0 0 .55rem;
  font-size: .625rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--c-muted);
}

.page-privacy .retention-v {
  margin: 0;
  color: var(--c-text);
  font-size: .9125rem;
  line-height: 1.8;
}

/* ---------- 权利条款折叠 ---------- */
.page-privacy .clause-list {
  margin-top: 1.75rem;
  border-top: 1px solid var(--c-line);
}

.page-privacy .clause {
  border-bottom: 1px solid var(--c-line);
}

.page-privacy .clause-summary {
  display: flex;
  align-items: baseline;
  gap: .9rem;
  padding: 1.05rem .25rem;
  cursor: pointer;
  list-style: none;
  color: var(--c-white);
  font-size: 1rem;
  line-height: 1.5;
  transition: color .2s var(--ease);
}

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

.page-privacy .clause-summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: var(--c-cyan);
  line-height: 1;
}

.page-privacy .clause[open] .clause-summary::after {
  content: "−";
}

.page-privacy .clause-summary:hover,
.page-privacy .clause-summary:focus-visible {
  color: var(--c-cyan);
}

.page-privacy .clause-num {
  font-size: .6875rem;
  letter-spacing: .16em;
  color: var(--c-muted);
}

.page-privacy .clause[open] .clause-num {
  color: var(--c-cyan);
}

.page-privacy .clause-title {
  font-weight: 500;
}

.page-privacy .clause-body {
  padding: 0 .25rem 1.2rem 2.1rem;
}

.page-privacy .clause-body p {
  margin: 0;
  color: var(--c-text);
  font-size: .9125rem;
  line-height: 1.82;
}

/* ---------- 联系方式 ---------- */
.page-privacy .contact-list {
  margin: 1.75rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--c-line);
  border: 1px solid var(--c-line);
}

.page-privacy .contact-item {
  padding: 1rem 1.25rem 1.1rem;
  background: var(--c-panel);
}

.page-privacy .contact-label {
  margin: 0 0 .35rem;
  font-family: var(--font-mono);
  font-size: .625rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--c-muted);
}

.page-privacy .contact-value {
  margin: 0;
  color: var(--c-white);
  font-size: 1rem;
  line-height: 1.6;
  word-break: break-word;
}

.page-privacy .contact-value--mono {
  font-family: var(--font-mono);
  letter-spacing: .02em;
}

.page-privacy .privacy-note {
  margin: 1.5rem 0 0;
  padding-top: 1.1rem;
  border-top: 1px dashed var(--c-line);
  color: var(--c-muted);
  font-size: .875rem;
  line-height: 1.85;
}

.page-privacy .privacy-note a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 224, .35);
}

.page-privacy .privacy-note a:hover,
.page-privacy .privacy-note a:focus-visible {
  border-bottom-color: var(--c-cyan);
}

/* ---------- 修订说明卡 ---------- */
.page-privacy .revision-card {
  margin-top: 2.75rem;
  padding: 1.4rem 1.5rem 1.5rem;
  border: 1px solid var(--c-line);
  border-left: 2px solid var(--c-gold);
  background: var(--c-panel);
}

.page-privacy .revision-label {
  margin: 0 0 .55rem;
  font-size: .625rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--c-gold);
}

.page-privacy .revision-title {
  margin: 0 0 .75rem;
  font-size: 1.15rem;
  font-weight: 500;
  line-height: 1.35;
  color: var(--c-white);
}

.page-privacy .revision-text,
.page-privacy .revision-links {
  margin: 0;
  color: var(--c-text);
  font-size: .9125rem;
  line-height: 1.8;
}

.page-privacy .revision-links {
  margin-top: .7rem;
  color: var(--c-muted);
}

.page-privacy .revision-links a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 230, 224, .35);
}

.page-privacy .revision-links a:hover,
.page-privacy .revision-links a:focus-visible {
  border-bottom-color: var(--c-cyan);
}

/* ---------- 响应式 ---------- */
@media (max-width: 719px) {
  .page-privacy .privacy-intro {
    padding-block: 2.25rem 1.5rem;
  }

  .page-privacy .privacy-toc {
    margin-left: 0;
    margin-right: 0;
  }

  .page-privacy .toc-list {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: .35rem;
    scrollbar-width: none;
  }

  .page-privacy .toc-list::-webkit-scrollbar {
    display: none;
  }

  .page-privacy .privacy-section {
    padding-block: 2rem;
  }

  .page-privacy .clause-body {
    padding-left: .25rem;
  }
}

@media (min-width: 720px) {
  .page-privacy .info-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-privacy .retention-grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-privacy .contact-list {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 1080px) {
  .page-privacy .privacy-visual {
    margin-bottom: 3rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .info-card,
  .page-privacy .toc-list a,
  .page-privacy .clause-summary {
    transition: none;
  }
}