.page-privacy {
  --privacy-line: rgba(224, 234, 245, 0.1);
  --privacy-line-strong: rgba(224, 234, 245, 0.22);
  --privacy-grid: rgba(224, 234, 245, 0.05);
  --privacy-callout-bg: linear-gradient(135deg, rgba(26, 58, 102, 0.55), rgba(18, 42, 77, 0.35));
  --privacy-space: clamp(2.5rem, 6vw, 5.5rem);
  --privacy-sidebar-w: 340px;
}

/* ---------- Hero 区域 ---------- */
.page-privacy__hero {
  position: relative;
  border-bottom: 1px solid var(--privacy-line);
  background-color: var(--k1-bg-deep);
  background-image:
    linear-gradient(var(--privacy-grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--privacy-grid) 1px, transparent 1px);
  background-size: 44px 44px;
  padding: 2.2rem 0 2.6rem;
}

.page-privacy__hero::after {
  content: '';
  position: absolute;
  inset: auto 0 0;
  height: 2px;
  background: linear-gradient(90deg, var(--k1-accent-data) 0 12%, transparent 12% 100%);
}

.page-privacy__hero .k1-breadcrumb {
  margin-bottom: 2rem;
}

.page-privacy__hero-grid {
  display: flex;
  flex-direction: column;
  gap: 1.8rem;
}

.page-privacy__kicker {
  display: inline-block;
  font-family: var(--k1-font-headline);
  font-size: 0.72rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--k1-accent-data);
  border: 1px solid rgba(57, 255, 136, 0.35);
  border-radius: var(--k1-radius-sm);
  padding: 0.32rem 0.7rem;
  margin-bottom: 1.1rem;
}

.page-privacy__hero h1 {
  font-family: var(--k1-font-headline);
  font-weight: 200;
  font-size: clamp(2.1rem, 7.5vw, 4.6rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  color: var(--k1-text-primary);
  margin: 0 0 1.4rem;
}

.page-privacy__hero-abstract {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--k1-text-secondary);
  max-width: 70ch;
  margin: 0 0 1.8rem;
}

.page-privacy__hero-meta {
  list-style: none;
  margin: 0;
  padding: 1.1rem 0 0;
  border-top: 1px solid var(--privacy-line);
  display: grid;
  gap: 0.45rem;
  max-width: 70ch;
}

.page-privacy__hero-meta li {
  display: flex;
  gap: 1rem;
  font-size: 0.85rem;
  color: var(--k1-text-secondary);
}

.page-privacy__hero-meta li span {
  flex: 0 0 5.2em;
  font-family: var(--k1-font-headline);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--k1-accent-label);
}

.page-privacy__hero-aside {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  flex-wrap: wrap;
}

.page-privacy__hero-version {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.4rem 0.9rem;
  border-left: 3px solid var(--k1-accent-cta);
  background: rgba(255, 46, 76, 0.08);
}

.page-privacy__hero-version-label {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--k1-text-secondary);
}

.page-privacy__hero-version-num {
  font-family: var(--k1-font-headline);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--k1-accent-cta);
}

.page-privacy__hero-line {
  width: 64px;
  height: 1px;
  background: var(--privacy-line-strong);
  transform: skewX(-18deg);
}

/* ---------- 主体布局 ---------- */
.page-privacy__layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2.2rem;
  padding: 2.4rem 0 var(--privacy-space);
}

/* ---------- 侧边栏 ---------- */
.page-privacy__sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.6rem;
  order: -1;
}

.page-privacy__toc {
  position: relative;
  background: rgba(18, 42, 77, 0.5);
  border: 1px solid var(--privacy-line);
  border-radius: var(--k1-radius-md);
  padding: 1.2rem 1.1rem;
}

.page-privacy__toc-label {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  padding-bottom: 0.85rem;
  margin-bottom: 0.5rem;
  border-bottom: 1px solid var(--privacy-line);
}

.page-privacy__toc-label span:first-child {
  font-family: var(--k1-font-headline);
  font-size: 0.72rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--k1-accent-data);
}

.page-privacy__toc-label span:last-child {
  font-size: 0.9rem;
  color: var(--k1-text-primary);
}

.page-privacy__toc-list {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.page-privacy__toc-list .k1-toc__link {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  text-decoration: none;
  padding: 0.72rem 0.6rem;
  border-radius: var(--k1-radius-sm);
  border-left: 3px solid transparent;
  transition: background var(--k1-transition), border-color var(--k1-transition);
}

.page-privacy__toc-list .k1-toc__link:hover,
.page-privacy__toc-list .k1-toc__link.is-active {
  background: rgba(57, 255, 136, 0.06);
  border-left-color: var(--k1-accent-data);
}

.page-privacy__toc-num {
  font-family: var(--k1-font-headline);
  font-size: 0.8rem;
  color: var(--k1-accent-data);
  opacity: 0.75;
  letter-spacing: 0.08em;
}

.page-privacy__toc-text {
  font-size: 0.9rem;
  color: var(--k1-text-primary);
}

.page-privacy__side-figure {
  margin: 0;
  border-radius: var(--k1-radius-lg);
  overflow: hidden;
  border: 1px solid var(--privacy-line);
  position: relative;
}

.page-privacy__side-img {
  display: block;
  width: 100%;
  height: 280px;
  object-fit: cover;
}

.page-privacy__side-caption {
  position: absolute;
  inset: auto 0 0;
  font-family: var(--k1-font-headline);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--k1-text-primary);
  background: rgba(11, 30, 58, 0.8);
  padding: 0.55rem 0.8rem;
}

.page-privacy__sidebar-note {
  display: flex;
  gap: 0.8rem;
  padding: 1rem;
  border-left: 4px solid var(--k1-accent-tech);
  background: rgba(122, 92, 255, 0.07);
  border-radius: 0 var(--k1-radius-sm) var(--k1-radius-sm) 0;
}

.page-privacy__sidebar-note-mark {
  flex: 0 0 6px;
  height: 6px;
  margin-top: 0.5rem;
  border-radius: 50%;
  background: var(--k1-accent-tech);
}

.page-privacy__sidebar-note p {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--k1-text-secondary);
}

/* ---------- 内容区 ---------- */
.page-privacy__content {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: clamp(2.8rem, 5vw, 4.5rem);
}

.page-privacy__section {
  position: relative;
  scroll-margin-top: 100px;
}

.page-privacy__section::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 5px;
  background: linear-gradient(180deg, var(--k1-accent-data) 0%, transparent 70%);
  opacity: 0.55;
  border-radius: 3px;
}

.page-privacy__section-head {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.6rem;
  border-bottom: 1px solid var(--privacy-line);
  padding-bottom: 1.1rem;
}

.page-privacy__section-num {
  font-family: var(--k1-font-headline);
  font-weight: 200;
  font-size: clamp(2.6rem, 5vw, 4rem);
  line-height: 1;
  color: var(--k1-accent-data);
  position: relative;
  top: 0.06em;
  flex-shrink: 0;
}

.page-privacy__section-head h2 {
  font-family: var(--k1-font-headline);
  font-weight: 400;
  font-size: clamp(1.1rem, 2.4vw, 1.65rem);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--k1-text-primary);
  margin: 0;
  padding-top: 0.1em;
  border: none;
}

.page-privacy__section-body {
  padding-left: calc(2.2rem + 5px);
}

.page-privacy__lead {
  font-size: 0.98rem;
  line-height: 1.85;
  color: var(--k1-text-secondary);
  margin: 0 0 1.6rem;
  background: rgba(26, 58, 102, 0.15);
  border-left: 2px solid rgba(122, 92, 255, 0.6);
  padding: 0.9rem 1.1rem;
  border-radius: 0 var(--k1-radius-sm) var(--k1-radius-sm) 0;
}

.page-privacy__section-body h3 {
  font-family: var(--k1-font-headline);
  font-size: 0.98rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--k1-text-primary);
  margin: 1.8rem 0 0.7rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.page-privacy__section-body h3::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--privacy-line), transparent);
}

.page-privacy__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.page-privacy__list li {
  position: relative;
  padding-left: 1.4rem;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--k1-text-secondary);
}

.page-privacy__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 2px;
  background: var(--k1-accent-data);
  transform: skewX(-18deg);
}

.page-privacy__callout {
  margin-top: 1.8rem;
  padding: 1.1rem 1.2rem;
  background: var(--privacy-callout-bg);
  border: 1px solid rgba(122, 92, 255, 0.22);
  border-radius: var(--k1-radius-md);
  position: relative;
  overflow: hidden;
}

.page-privacy__callout::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 60px;
  height: 60px;
  background: radial-gradient(circle at top right, rgba(122, 92, 255, 0.28), transparent 70%);
  pointer-events: none;
}

.page-privacy__callout--alert {
  border-color: rgba(255, 46, 76, 0.3);
}

.page-privacy__callout--alert::after {
  background: radial-gradient(circle at top right, rgba(255, 46, 76, 0.24), transparent 70%);
}

.page-privacy__callout--last {
  border-color: rgba(57, 255, 136, 0.2);
}

.page-privacy__callout--last::after {
  background: radial-gradient(circle at top right, rgba(57, 255, 136, 0.2), transparent 70%);
}

.page-privacy__callout-label {
  display: inline-block;
  font-family: var(--k1-font-headline);
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--k1-accent-label);
  margin-bottom: 0.45rem;
}

.page-privacy__callout p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--k1-text-secondary);
}

/* ---------- 安全认证网格 ---------- */
.page-privacy__security-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.9rem;
  margin: 1.2rem 0 0.4rem;
}

.page-privacy__security-item {
  display: flex;
  gap: 0.9rem;
  padding: 1rem;
  border: 1px solid var(--privacy-line);
  background: rgba(18, 42, 77, 0.35);
  border-radius: var(--k1-radius-md);
  transition: border-color var(--k1-transition), background var(--k1-transition);
}

.page-privacy__security-item:hover {
  border-color: rgba(122, 92, 255, 0.5);
  background: rgba(122, 92, 255, 0.06);
}

.page-privacy__security-icon {
  flex: 0 0 42px;
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--k1-accent-tech);
  border: 1.5px solid rgba(122, 92, 255, 0.5);
  border-radius: 10px;
  background: rgba(122, 92, 255, 0.05);
}

.page-privacy__security-icon svg {
  width: 22px;
  height: 22px;
}

.page-privacy__security-item strong {
  display: block;
  font-family: var(--k1-font-headline);
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  color: var(--k1-text-primary);
  margin-bottom: 0.25rem;
}

.page-privacy__security-item p {
  margin: 0;
  font-size: 0.82rem;
  line-height: 1.65;
  color: var(--k1-text-secondary);
}

/* ---------- 用户权利区块 ---------- */
.page-privacy__rights-note {
  margin-top: 1.7rem;
  padding: 1.1rem 1.2rem;
  border: 1px solid var(--privacy-line-strong);
  border-radius: var(--k1-radius-md);
  background: rgba(122, 92, 255, 0.05);
}

.page-privacy__rights-note p {
  margin: 0 0 0.7rem;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--k1-text-secondary);
}

.page-privacy__rights-note p:last-child {
  margin-bottom: 0;
}

.page-privacy__rights-note a {
  color: var(--k1-accent-data);
  text-decoration: none;
  border-bottom: 1px solid rgba(57, 255, 136, 0.35);
  transition: border-color var(--k1-transition);
}

.page-privacy__rights-note a:hover {
  border-bottom-color: var(--k1-accent-data);
}

/* k1-breadcrumb 微调 */
.page-privacy .k1-breadcrumb {
  font-size: 0.8rem;
}

.page-privacy .k1-breadcrumb a {
  color: var(--k1-text-secondary);
  text-decoration: none;
  transition: color var(--k1-transition);
}

.page-privacy .k1-breadcrumb a:hover {
  color: var(--k1-accent-data);
}

/* ---------- 桌面端适配 ---------- */
@media (min-width: 768px) {
  .page-privacy__hero {
    padding: 3.2rem 0 3.4rem;
  }

  .page-privacy__hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 2.6rem;
    align-items: end;
  }

  .page-privacy__hero-aside {
    flex-direction: column;
    align-items: flex-end;
    gap: 1.4rem;
    padding-bottom: 0.4rem;
  }

  .page-privacy__security-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .page-privacy__side-img {
    height: auto;
  }
}

@media (min-width: 1024px) {
  .page-privacy__layout {
    grid-template-columns: var(--privacy-sidebar-w) minmax(0, 1fr);
    gap: clamp(3rem, 7vw, 5.5rem);
    align-items: start;
  }

  .page-privacy__sidebar {
    position: sticky;
    top: 90px;
    order: 0;
    align-self: start;
  }

  .page-privacy__section-body {
    padding-left: calc(2.8rem + 5px);
  }

  .page-privacy__toc {
    padding: 1.4rem;
  }
}

@media (min-width: 1280px) {
  .page-privacy__hero h1 {
    letter-spacing: -0.02em;
  }

  .page-privacy__content {
    max-width: 820px;
  }
}