.page-privacy {
  --privacy-shadow: 6px 6px 0 0 rgba(0, 229, 208, 0.18);
  --privacy-shadow-alert: 6px 6px 0 0 rgba(255, 75, 43, 0.22);
}

/* ---------- 首屏文档索引 ---------- */
.page-privacy .privacy-doc {
  padding: clamp(1.5rem, 3vw, 2.5rem) 0 clamp(2.5rem, 5vw, 4rem);
}

.page-privacy .privacy-doc-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: start;
}

.page-privacy .privacy-toc {
  border: 2px solid var(--line);
  background: var(--ink-deep);
  padding: 1.1rem 1.15rem 1.35rem;
  box-shadow: var(--privacy-shadow);
}

.page-privacy .toc-list {
  list-style: none;
  margin: 0.9rem 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-privacy .toc-list li + li {
  border-top: 1px solid var(--line);
}

.page-privacy .toc-list a {
  display: grid;
  grid-template-columns: 2.2rem minmax(0, 1fr);
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.7rem 0.15rem;
  color: var(--paper);
  text-decoration: none;
  font-family: var(--font-head);
  font-size: 1rem;
  line-height: 1.35;
  letter-spacing: 0.01em;
  transition: color var(--dur) var(--ease);
}

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

.page-privacy .toc-num {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--amber);
}

.page-privacy .toc-note {
  margin: 1.1rem 0 0;
  padding-top: 0.85rem;
  border-top: 1px dashed var(--line);
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--mist);
}

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

.page-privacy .privacy-intro h1 {
  margin: 0.6rem 0 1rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(1.9rem, 5.2vw, 3.6rem);
  line-height: 1.14;
  color: var(--paper);
  letter-spacing: 0.005em;
}

.page-privacy .privacy-lede {
  margin: 0 0 1.5rem;
  max-width: 46ch;
  font-size: clamp(1rem, 1.15vw, 1.1rem);
  line-height: 1.78;
  color: var(--paper);
}

.page-privacy .privacy-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.page-privacy .privacy-visual {
  margin: 0;
  border: 2px solid var(--line);
  background: var(--card);
  box-shadow: var(--privacy-shadow);
  min-width: 0;
}

.page-privacy .privacy-visual .figure-frame {
  display: block;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.page-privacy .privacy-visual img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.03);
}

.page-privacy .privacy-visual .figure-cap {
  padding: 0.7rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.76rem;
  line-height: 1.55;
  color: var(--mist);
  letter-spacing: 0.01em;
}

/* ---------- 条款区块 ---------- */
.page-privacy .privacy-clause {
  padding: clamp(2.2rem, 4.5vw, 3.4rem) 0;
  border-top: 1px solid var(--line);
}

.page-privacy .clause-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.6rem;
}

.page-privacy .clause-num {
  font-family: var(--font-mono);
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  line-height: 0.9;
  color: var(--amber);
  letter-spacing: -0.03em;
}

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

.page-privacy .clause-body h2 {
  margin: 0 0 0.85rem;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.35rem, 2.6vw, 1.85rem);
  line-height: 1.25;
  color: var(--paper);
  letter-spacing: 0.01em;
}

.page-privacy .clause-body > p {
  margin: 0 0 0.4rem;
  max-width: 62ch;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--paper);
}

.page-privacy .clause-list {
  list-style: none;
  margin: 1.2rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.9rem;
}

.page-privacy .clause-list li {
  border-left: 2px solid var(--cyan);
  padding: 0.25rem 0 0.35rem 1rem;
  font-size: 0.98rem;
  line-height: 1.75;
  color: var(--paper);
}

.page-privacy .clause-list strong {
  display: block;
  margin-bottom: 0.2rem;
  font-family: var(--font-head);
  font-size: 0.86rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--cyan);
}

/* ---------- 目的卡 ---------- */
.page-privacy .purpose-grid {
  margin-top: 1.4rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.9rem;
}

.page-privacy .purpose-card {
  border: 1px solid var(--line);
  border-left: 2px solid var(--alert);
  background: var(--card);
  padding: 0.95rem 1.05rem 1.1rem;
}

.page-privacy .purpose-card .coord {
  display: block;
  margin: 0 0 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  color: var(--amber);
}

.page-privacy .purpose-card h3 {
  margin: 0 0 0.45rem;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.08rem;
  line-height: 1.35;
  color: var(--paper);
}

.page-privacy .purpose-card p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.72;
  color: var(--mist);
}

/* ---------- 联系信息 ---------- */
.page-privacy .contact-grid {
  margin-top: 1.35rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.9rem;
}

.page-privacy .contact-item {
  border: 1px solid var(--line);
  background: var(--card);
  padding: 0.9rem 1rem 1rem;
  min-width: 0;
}

.page-privacy .contact-item .contact-key {
  margin: 0 0 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-privacy .contact-item .contact-val {
  margin: 0 0 0.6rem;
  font-family: var(--font-body);
  font-size: 0.98rem;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.page-privacy .contact-item .contact-val--sm {
  margin-bottom: 0;
  font-size: 0.82rem;
  color: var(--mist);
}

.page-privacy .contact-item .copy-btn {
  margin-top: 0.2rem;
  font-size: 0.8rem;
  padding: 0.4rem 0.85rem;
}

.page-privacy .contact-hint {
  margin: 1.3rem 0 0;
  padding: 0.9rem 1rem;
  border-left: 2px solid var(--cyan);
  background: var(--ink-deep);
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--paper);
}

.page-privacy .contact-links {
  margin: 1.1rem 0 0;
  font-size: 0.92rem;
  line-height: 1.8;
  color: var(--mist);
}

.page-privacy .contact-links a {
  color: var(--focus);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan-deep);
}

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

/* ---------- 回顶 ---------- */
.page-privacy .privacy-foot {
  padding: 0 0 clamp(2rem, 4vw, 3rem);
}

.page-privacy .back-top {
  display: inline-block;
  padding: 0.55rem 0.95rem;
  border: 2px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--paper);
  text-decoration: none;
  background: var(--ink-deep);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-privacy .back-top:hover,
.page-privacy .back-top:focus-visible {
  border-color: var(--focus);
  color: var(--focus);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-privacy .purpose-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 760px) {
  .page-privacy .clause-grid {
    grid-template-columns: 128px minmax(0, 1fr);
    column-gap: 2.5rem;
    row-gap: 0.4rem;
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-privacy .privacy-doc-grid {
    grid-template-columns: minmax(230px, 290px) minmax(0, 1fr);
    grid-template-areas:
      "toc intro"
      "toc visual";
    column-gap: clamp(2rem, 4vw, 4rem);
    row-gap: clamp(1.8rem, 3vw, 2.6rem);
  }

  .page-privacy .privacy-toc {
    grid-area: toc;
    position: sticky;
    top: 6.5rem;
  }

  .page-privacy .privacy-intro {
    grid-area: intro;
  }

  .page-privacy .privacy-visual {
    grid-area: visual;
  }

  .page-privacy .clause-grid {
    grid-template-columns: 160px minmax(0, 1fr);
    column-gap: clamp(2rem, 4vw, 4rem);
  }
}

@media (min-width: 1120px) {
  .page-privacy .purpose-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

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