.page-privacy {
  --privacy-measure: 720px;
  --privacy-toc-w: 208px;
  --privacy-line: rgba(244, 247, 250, 0.12);
  --privacy-text: rgba(244, 247, 250, 0.78);
  position: relative;
  background-color: var(--abyss-950);
  color: var(--board-050);
  overflow-x: clip;
  min-height: 100vh;
}

/* ---------- 页头 ---------- */
.page-privacy .privacy-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(48px, 8vw, 104px) 0 clamp(36px, 5vw, 64px);
  border-bottom: 1px solid var(--privacy-line);
}

.page-privacy .privacy-hero-visual {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.page-privacy .privacy-hero-visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.42;
}

.page-privacy .privacy-hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(5, 11, 24, 0.3) 0%, rgba(5, 11, 24, 0.82) 60%, var(--abyss-950) 100%);
}

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

.page-privacy .breadcrumb {
  margin-bottom: clamp(28px, 5vw, 56px);
}

.page-privacy .privacy-h1 {
  margin: 0 0 clamp(18px, 3vw, 28px);
  font-size: clamp(40px, 7vw, 92px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  font-weight: 900;
}

.page-privacy .privacy-lede {
  max-width: 58ch;
  margin: 0 0 clamp(22px, 3vw, 32px);
  font-size: clamp(16px, 1.6vw, 19px);
  line-height: 1.85;
  color: var(--privacy-text);
}

.page-privacy .privacy-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 16px;
}

.page-privacy .privacy-meta-note {
  font-size: 13px;
  line-height: 1.6;
  color: var(--haze-400);
}

/* ---------- 主体骨架 ---------- */
.page-privacy .privacy-body {
  padding: clamp(40px, 6vw, 80px) 0 clamp(72px, 9vw, 132px);
}

.page-privacy .privacy-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 48px);
}

@media (min-width: 1000px) {
  .page-privacy .privacy-layout {
    grid-template-columns: var(--privacy-toc-w) minmax(0, 1fr);
    gap: clamp(48px, 6vw, 96px);
    align-items: start;
  }
}

/* ---------- 目录 ---------- */
.page-privacy .privacy-toc {
  border-top: 1px solid var(--privacy-line);
  padding-top: 4px;
}

.page-privacy .privacy-toc-title {
  margin: 14px 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--haze-400);
}

.page-privacy .privacy-toc-list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 10px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

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

.page-privacy .privacy-toc-link {
  display: inline-flex;
  flex: 0 0 auto;
  gap: 8px;
  align-items: baseline;
  padding: 7px 12px;
  border: 1px solid var(--glass-line);
  border-radius: var(--radius);
  color: var(--haze-400);
  font-size: 13px;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease), background-color var(--t-fast) var(--ease);
}

.page-privacy .privacy-toc-link:hover,
.page-privacy .privacy-toc-link:focus-visible {
  color: var(--board-050);
  border-color: rgba(34, 211, 208, 0.5);
  background-color: var(--glass-100);
}

.page-privacy .privacy-toc-no {
  font-size: 11px;
  color: var(--signal-500);
}

@media (min-width: 1000px) {
  .page-privacy .privacy-toc {
    position: sticky;
    top: clamp(24px, 4vw, 48px);
    border-top: 0;
    padding-top: 0;
  }

  .page-privacy .privacy-toc-title {
    margin-top: 0;
  }

  .page-privacy .privacy-toc-list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-privacy .privacy-toc-link {
    display: flex;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    padding: 8px 0 8px 12px;
    background: none;
    white-space: normal;
  }

  .page-privacy .privacy-toc-link:hover,
  .page-privacy .privacy-toc-link:focus-visible {
    background: none;
    border-left-color: var(--electron-400);
    color: var(--board-050);
  }
}

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

.page-privacy .privacy-section {
  max-width: var(--privacy-measure);
  border-top: 1px solid var(--privacy-line);
}

.page-privacy .privacy-sections > .privacy-section:last-child {
  border-bottom: 1px solid var(--privacy-line);
}

.page-privacy .privacy-summary {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: clamp(22px, 3.4vw, 34px) 0 clamp(10px, 1.6vw, 16px);
  cursor: pointer;
  list-style: none;
}

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

.page-privacy .privacy-no {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--signal-500);
  padding-top: 0.3em;
}

.page-privacy .privacy-h2 {
  flex: 1 1 auto;
  margin: 0;
  font-size: clamp(20px, 2.4vw, 27px);
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--board-050);
}

.page-privacy .privacy-caret {
  flex: 0 0 auto;
  align-self: center;
  width: 11px;
  height: 11px;
  border-right: 1.5px solid var(--haze-400);
  border-bottom: 1.5px solid var(--haze-400);
  transform: rotate(45deg);
  transition: transform var(--t-base) var(--ease), border-color var(--t-base) var(--ease);
}

.page-privacy .privacy-section:not([open]) .privacy-caret {
  transform: rotate(-135deg);
}

.page-privacy .privacy-summary:hover .privacy-caret,
.page-privacy .privacy-summary:focus-visible .privacy-caret {
  border-color: var(--electron-400);
}

.page-privacy .privacy-section:target > .privacy-summary .privacy-h2 {
  color: var(--signal-500);
}

/* ---------- 正文 ---------- */
.page-privacy .privacy-content {
  padding-bottom: clamp(24px, 3.4vw, 40px);
  font-size: 16px;
  line-height: 1.85;
  color: var(--privacy-text);
}

.page-privacy .privacy-content > p {
  margin: 0 0 16px;
}

.page-privacy .privacy-content > ul {
  display: grid;
  gap: 12px;
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
}

.page-privacy .privacy-content li {
  position: relative;
  padding-left: 20px;
}

.page-privacy .privacy-content li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 8px;
  height: 1px;
  background-color: var(--electron-400);
}

.page-privacy .privacy-content strong {
  color: var(--board-050);
  font-weight: 600;
}

.page-privacy .privacy-content a {
  color: var(--electron-400);
  text-decoration: underline;
  text-decoration-color: rgba(34, 211, 208, 0.4);
  text-underline-offset: 3px;
}

.page-privacy .privacy-content a:hover,
.page-privacy .privacy-content a:focus-visible {
  text-decoration-color: var(--electron-400);
}

/* ---------- 联系清单 ---------- */
.page-privacy .privacy-content .privacy-contact-list {
  gap: 1px;
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  background-color: var(--glass-line);
  border: 1px solid var(--glass-line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-privacy .privacy-content .privacy-contact-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 16px;
  padding: 14px 16px;
  background-color: var(--graphite-900);
}

.page-privacy .privacy-content .privacy-contact-list li::before {
  content: none;
}

.page-privacy .privacy-contact-label {
  flex: 0 0 auto;
  min-width: 68px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--haze-400);
}

.page-privacy .privacy-contact-value {
  flex: 1 1 auto;
  min-width: 0;
  font-size: 15px;
  color: var(--board-050);
  word-break: break-all;
}

.page-privacy .copy-btn {
  flex: 0 0 auto;
}

/* ---------- 返回顶部 ---------- */
.page-privacy .privacy-top-link {
  position: fixed;
  right: clamp(16px, 3vw, 32px);
  bottom: clamp(16px, 3vw, 32px);
  z-index: 30;
  display: inline-flex;
  align-items: center;
  padding: 10px 14px;
  border: 1px solid var(--glass-line);
  border-radius: var(--radius);
  background-color: rgba(14, 19, 25, 0.88);
  backdrop-filter: blur(10px);
  color: var(--haze-400);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-decoration: none;
  transition: color var(--t-base) var(--ease), border-color var(--t-base) var(--ease);
}

.page-privacy .privacy-top-link:hover,
.page-privacy .privacy-top-link:focus-visible {
  color: var(--board-050);
  border-color: var(--electron-400);
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-caret,
  .page-privacy .privacy-toc-link,
  .page-privacy .privacy-top-link {
    transition: none;
  }
}

@media (max-width: 520px) {
  .page-privacy .privacy-summary {
    gap: 10px;
  }

  .page-privacy .privacy-no {
    font-size: 12px;
  }

  .page-privacy .privacy-top-link {
    padding: 8px 12px;
    font-size: 10px;
  }
}