.page-privacy {
  --privacy-border-strong: rgba(77, 208, 225, 0.4);
  --privacy-panel: rgba(17, 27, 45, 0.72);
  --privacy-glow-lime: rgba(163, 255, 18, 0.06);
  background:
    radial-gradient(ellipse at 15% 20%, rgba(255, 122, 0, 0.05), transparent 32%),
    radial-gradient(ellipse at 85% 70%, rgba(77, 208, 225, 0.04), transparent 40%),
    var(--color-bg-deep);
  overflow-x: hidden;
  scroll-behavior: smooth;
}
.page-privacy ::selection {
  background: rgba(255, 122, 0, 0.35);
  color: var(--color-text-main);
}
.page-privacy a:focus-visible {
  outline: 2px solid var(--color-accent-lime);
  outline-offset: 3px;
}

/* ===== Hero ===== */
.privacy-hero {
  position: relative;
  isolation: isolate;
  padding: clamp(2.5rem, 7vw, 5rem) 0 clamp(3rem, 8vw, 5rem);
  border-bottom: 1px solid var(--color-border);
}
.privacy-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent-orange), var(--color-accent-lime), transparent 80%);
  opacity: 0.7;
  z-index: 2;
}
.privacy-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.14;
  z-index: -1;
}
.privacy-hero__content {
  position: relative;
  z-index: 1;
}
.privacy-hero__content .breadcrumb {
  margin-bottom: 1.5rem;
}
.privacy-hero__title {
  position: relative;
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4.5vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-text-main);
  margin: 0 0 1.2rem;
  padding-left: 1rem;
  max-width: 22ch;
}
.privacy-hero__title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.15em;
  bottom: 0.15em;
  width: 4px;
  background: linear-gradient(180deg, var(--color-accent-orange), var(--color-accent-lime));
  transform: skewY(-12deg);
  transform-origin: left top;
}
.privacy-hero__desc {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--color-text-sub);
  max-width: 62ch;
  margin: 0 0 1.6rem;
}
.privacy-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
}
.privacy-hero__tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-text-sub);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 0.32rem 0.6rem;
  background: var(--privacy-panel);
}

/* ===== 主体布局 ===== */
.privacy-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 2rem var(--container-pad) 4.5rem;
}

/* ===== 侧边导航 ===== */
.privacy-sidebar {
  position: sticky;
  top: calc(var(--header-top-height) + var(--header-bottom-height) + 0.6rem);
  align-self: start;
  z-index: 10;
  background: rgba(10, 15, 30, 0.88);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 0.85rem 0.85rem 0.95rem;
}
.policy-nav {
  display: flex;
  flex-wrap: nowrap;
  overflow-x: auto;
  gap: 0.4rem;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}
.policy-nav__label {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent-lime);
  border: 1px solid rgba(163, 255, 18, 0.25);
  border-radius: var(--radius-card);
  padding: 0.32rem 0.5rem;
  white-space: nowrap;
  background: rgba(163, 255, 18, 0.04);
}
.policy-nav__link {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--color-text-sub);
  text-decoration: none;
  padding: 0.4rem 0.55rem;
  border: 1px solid transparent;
  border-radius: var(--radius-card);
  white-space: nowrap;
  transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}
.policy-nav__link:hover {
  color: var(--color-text-main);
  border-color: var(--color-border);
  background: rgba(77, 208, 225, 0.06);
}
.privacy-sidebar__foot {
  display: none;
}
.privacy-sidebar__note {
  font-size: 0.75rem;
  line-height: 1.6;
  color: var(--color-text-sub);
  margin: 0 0 0.8rem;
}
.privacy-sidebar__btn {
  width: 100%;
  text-align: center;
  font-size: 0.82rem;
}

/* ===== 正文内容 ===== */
.privacy-content {
  min-width: 0;
}
.policy-section {
  padding: 2.6rem 0;
  border-top: 1px solid var(--color-border);
  scroll-margin-top: calc(var(--header-top-height) + var(--header-bottom-height) + 2.5rem);
  transition: background var(--transition-base), box-shadow var(--transition-base);
}
.policy-section:first-child {
  padding-top: 0.5rem;
  border-top: none;
}
.policy-section.is-in-view {
  background: linear-gradient(90deg, var(--privacy-glow-lime), transparent 55%);
  box-shadow: inset 2px 0 0 rgba(163, 255, 18, 0.5);
}
.policy-section__num {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--color-accent-lime);
  background: rgba(163, 255, 18, 0.07);
  border: 1px solid rgba(163, 255, 18, 0.22);
  border-radius: var(--radius-card);
  padding: 0.25rem 0.55rem;
  margin-bottom: 1rem;
}
.policy-section h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2rem);
  line-height: 1.2;
  color: var(--color-text-main);
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
}
.policy-section__lead {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.75;
  color: var(--color-text-sub);
  margin: 0 0 1.8rem;
  max-width: 66ch;
}
.policy-block {
  position: relative;
  padding: 0 0 1.4rem 1.1rem;
  margin: 0 0 1.6rem;
  border-left: 2px solid rgba(255, 122, 0, 0.28);
}
.policy-block::after {
  content: "";
  position: absolute;
  left: -2px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--color-accent-orange), var(--color-accent-lime));
  opacity: 0;
  transition: opacity var(--transition-fast);
}
.policy-block:hover::after {
  opacity: 1;
}
.policy-block:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
}
.policy-block h3 {
  font-family: var(--font-heading);
  font-size: 1.02rem;
  line-height: 1.4;
  color: var(--color-text-main);
  margin: 0 0 0.55rem;
}
.policy-block p {
  font-family: var(--font-body);
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--color-text-sub);
  margin: 0;
  max-width: 68ch;
}
.privacy-hl {
  color: var(--color-accent-lime);
  cursor: help;
  text-decoration: underline dotted rgba(163, 255, 18, 0.5);
  text-underline-offset: 3px;
  transition: color var(--transition-fast), text-decoration-color var(--transition-fast);
}
.privacy-hl:hover {
  color: var(--color-accent-lime);
  text-decoration-color: var(--color-accent-lime);
}
.privacy-link {
  color: var(--color-link);
  text-decoration: none;
  border-bottom: 1px solid rgba(77, 208, 225, 0.4);
  transition: border-color var(--transition-fast), color var(--transition-fast);
}
.privacy-link:hover {
  border-bottom-color: var(--color-link);
  color: #9fe7f2;
}

/* ===== 底部联系卡 ===== */
.privacy-contact {
  margin-top: 2.5rem;
  padding: 1.8rem;
  background:
    linear-gradient(135deg, rgba(255, 122, 0, 0.1), rgba(163, 255, 18, 0.05)),
    var(--color-bg-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  position: relative;
}
.privacy-contact::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 1.2rem;
  width: 64px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent-orange), var(--color-accent-lime));
}
.privacy-contact__grid {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}
.privacy-contact__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--color-accent-lime);
  margin: 0 0 0.4rem;
}
.privacy-contact__value {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--color-text-main);
  margin: 0 0 0.5rem;
}
.privacy-contact__note {
  font-family: var(--font-body);
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--color-text-sub);
  margin: 0;
}
.privacy-contact__btn {
  align-self: flex-start;
}

/* ===== 回到顶部 ===== */
.privacy-backtop {
  position: fixed;
  right: 1.2rem;
  bottom: 1.2rem;
  z-index: 30;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.55rem 0.9rem;
  background: rgba(17, 27, 45, 0.92);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  color: var(--color-text-sub);
  text-decoration: none;
  font-family: var(--font-body);
  font-size: 0.8rem;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  transition: color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}
.privacy-backtop:hover {
  color: var(--color-text-main);
  border-color: var(--color-accent-orange);
  transform: translateY(-2px);
}
.privacy-backtop__arrow {
  font-size: 1rem;
  line-height: 1;
  color: var(--color-accent-lime);
}

/* ===== 响应式 ===== */
@media (min-width: 640px) {
  .privacy-contact__grid {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
  .privacy-contact__btn {
    flex-shrink: 0;
    margin-left: 1rem;
  }
}
@media (min-width: 960px) {
  .privacy-layout {
    grid-template-columns: minmax(200px, 240px) minmax(0, 760px);
    gap: 2.5rem 4rem;
    justify-content: center;
    align-items: start;
  }
  .privacy-sidebar {
    top: calc(var(--header-top-height) + var(--header-bottom-height) + 1.6rem);
    padding: 1.2rem 1rem 1.4rem;
  }
  .policy-nav {
    flex-direction: column;
    align-items: stretch;
    gap: 0.2rem;
    overflow: visible;
  }
  .policy-nav__label {
    border: none;
    border-left: 2px solid var(--color-accent-lime);
    border-radius: 0;
    padding: 0.35rem 0 0.35rem 0.6rem;
    margin-bottom: 0.5rem;
    font-size: 0.72rem;
    background: transparent;
  }
  .policy-nav__link {
    display: block;
    font-size: 0.86rem;
    padding: 0.5rem 0.65rem;
    white-space: normal;
    position: relative;
  }
  .policy-nav__link::before {
    content: "";
    display: inline-block;
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-bottom: 4px solid transparent;
    margin-right: 0;
    transition: all var(--transition-fast);
  }
  .policy-nav__link:hover::before {
    border-left-color: var(--color-accent-orange);
    margin-right: 0.4rem;
  }
  .privacy-sidebar__foot {
    display: block;
    margin-top: 1.2rem;
    padding-top: 1rem;
    border-top: 1px dashed var(--color-border);
  }
  .privacy-backtop {
    right: 2rem;
    bottom: 2rem;
  }
}
@media (prefers-reduced-motion: reduce) {
  .page-privacy {
    scroll-behavior: auto;
  }
  .policy-section,
  .policy-nav__link,
  .privacy-backtop,
  .privacy-hl {
    transition: none;
  }
}