.page-privacy {
  --pv-primary: var(--color-primary);
  --pv-deep: var(--color-deep);
  --pv-bg-dark: var(--color-bg-dark);
  --pv-bg-light: var(--color-bg-light);
  --pv-surface: var(--color-surface-mid);
  --pv-text: var(--color-text);
  --pv-inverse: var(--color-text-inverse);
  --pv-grid: var(--color-grid);
  --pv-neon: var(--color-neon);
  --pv-mono: var(--font-mono);
  --pv-heading: var(--font-heading);
  --pv-body: var(--font-body);
  --pv-shadow: var(--shadow-hard);
  --pv-shadow-sm: var(--shadow-hard-sm);
}

/* ========== 首屏 Hero ========== */
.page-privacy .privacy-hero {
  position: relative;
  overflow: hidden;
  background: var(--pv-deep);
  color: var(--pv-inverse);
  padding: 150px 0 56px;
  border-bottom: 6px solid var(--pv-primary);
}

.page-privacy .privacy-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
  z-index: 0;
}

.page-privacy .privacy-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(
    100deg,
    rgba(10, 31, 68, 0.92) 0%,
    rgba(15, 20, 35, 0.78) 42%,
    rgba(15, 20, 35, 0.38) 100%
  );
}

.page-privacy .privacy-hero__stripe {
  position: absolute;
  top: 0;
  left: 0;
  width: 46%;
  height: 100%;
  z-index: 1;
  background: var(--pv-primary);
  clip-path: polygon(0 0, 22% 0, 78% 100%, 0 100%);
  opacity: 0.22;
}

.page-privacy .privacy-hero__inner {
  position: relative;
  z-index: 2;
}

.page-privacy .privacy-hero .breadcrumb {
  margin-bottom: 28px;
}

.page-privacy .privacy-hero__kicker {
  margin: 0 0 14px;
  color: var(--pv-primary);
  font-weight: 700;
}

.page-privacy .privacy-hero__title {
  font-family: var(--pv-heading);
  font-size: clamp(2.25rem, 6vw, 3.5rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0;
  max-width: 800px;
}

.page-privacy .privacy-hero__desc {
  margin: 22px 0 0;
  max-width: 640px;
  font-size: var(--size-body);
  line-height: 1.8;
  opacity: 0.92;
}

/* ========== 正文布局 ========== */
.page-privacy .privacy-layout {
  position: relative;
  padding: 48px 0 80px;
  background-color: var(--pv-bg-light);
  background-image:
    linear-gradient(#2A3B4C14 1px, transparent 1px),
    linear-gradient(90deg, #2A3B4C14 1px, transparent 1px);
  background-size: 28px 28px;
}

.page-privacy .privacy-layout__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
  align-items: start;
}

/* ========== 侧边目录 ========== */
.page-privacy .privacy-toc__inner {
  background: var(--pv-bg-light);
  border: 2px solid var(--pv-primary);
  box-shadow: var(--pv-shadow-sm);
  padding: 24px;
}

.page-privacy .privacy-toc__label {
  font-family: var(--pv-mono);
  font-size: var(--size-small);
  color: var(--pv-primary);
  letter-spacing: 0.12em;
  margin: 0 0 20px;
  font-weight: 700;
}

.page-privacy .privacy-toc__list {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  border-top: 2px solid var(--pv-primary);
}

.page-privacy .privacy-toc__item {
  border-bottom: 1px solid #D5DCE7;
}

.page-privacy .privacy-toc__item:last-child {
  border-bottom: 0;
}

.page-privacy .privacy-toc__link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 14px 4px;
  color: var(--pv-text);
  text-decoration: none;
  font-weight: 700;
  font-size: var(--size-body);
  transition: color 0.2s ease, transform 0.2s ease;
}

.page-privacy .privacy-toc__link:hover {
  color: var(--pv-primary);
  transform: translateX(4px);
}

.page-privacy .privacy-toc__link:focus-visible {
  outline: 2px solid var(--pv-neon);
  outline-offset: 2px;
}

.page-privacy .privacy-toc__num {
  font-family: var(--pv-mono);
  color: var(--pv-primary);
  font-weight: 800;
  font-size: var(--size-small);
}

.page-privacy .privacy-toc__note {
  margin-top: 20px;
  padding: 16px;
  background: var(--pv-deep);
  color: var(--pv-inverse);
  display: grid;
  gap: 10px;
}

.page-privacy .privacy-toc__note-title {
  font-family: var(--pv-mono);
  color: var(--pv-neon);
  font-size: var(--size-small);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin: 0 0 4px;
}

.page-privacy .privacy-toc__note-link {
  color: var(--pv-inverse);
  text-decoration: none;
  font-weight: 500;
  font-size: var(--size-small);
  border-bottom: 1px solid rgba(255, 255, 255, 0.28);
  padding-bottom: 2px;
  align-self: flex-start;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.page-privacy .privacy-toc__note-link:hover {
  color: var(--pv-primary);
  border-color: var(--pv-primary);
}

/* ========== 内容章节 ========== */
.page-privacy .privacy-content {
  min-width: 0;
}

.page-privacy .privacy-chapter {
  scroll-margin-top: calc(var(--header-h) + 20px);
  background: var(--pv-bg-light);
  border: 2px solid var(--pv-grid);
  box-shadow: var(--pv-shadow-sm);
}

.page-privacy .privacy-chapter + .privacy-chapter {
  margin-top: 28px;
}

.page-privacy .privacy-chapter__title {
  margin: 0;
  border: 0;
}

.page-privacy .privacy-chapter__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px;
  cursor: pointer;
  background: var(--pv-deep);
  border: 0;
  color: var(--pv-inverse);
  font-family: var(--pv-heading);
  text-align: left;
  transition: background 0.25s ease;
}

.page-privacy .privacy-chapter__trigger:hover {
  background: #12305F;
}

.page-privacy .privacy-chapter__trigger:focus-visible {
  outline: 2px solid var(--pv-neon);
  outline-offset: 2px;
}

.page-privacy .privacy-chapter__num {
  font-family: var(--pv-mono);
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--pv-primary);
  line-height: 1;
}

.page-privacy .privacy-chapter__heading {
  font-size: 1.125rem;
  font-weight: 800;
  line-height: 1.3;
}

.page-privacy .privacy-chapter__icon {
  flex: 0 0 26px;
  width: 26px;
  height: 26px;
  margin-left: auto;
  position: relative;
  border: 2px solid var(--pv-primary);
  transition: border-color 0.25s ease;
}

.page-privacy .privacy-chapter__icon::before,
.page-privacy .privacy-chapter__icon::after {
  content: "";
  position: absolute;
  background: var(--pv-primary);
  transition: transform 0.3s ease;
  left: 50%;
  top: 50%;
}

.page-privacy .privacy-chapter__icon::before {
  width: 12px;
  height: 2px;
  transform: translate(-50%, -50%);
}

.page-privacy .privacy-chapter__icon::after {
  width: 2px;
  height: 12px;
  transform: translate(-50%, -50%);
}

.page-privacy .privacy-chapter__trigger[aria-expanded="true"] .privacy-chapter__icon::after {
  transform: translate(-50%, -50%) scaleY(0);
}

.page-privacy .privacy-chapter__panel {
  padding: 28px 24px 32px;
  border-top: 2px solid var(--pv-primary);
}

.page-privacy .privacy-chapter__panel:not([data-open]) {
  display: none;
}

.page-privacy .privacy-chapter__lead {
  margin: 0 0 24px;
  font-size: 1.0625rem;
  font-weight: 500;
  line-height: 1.8;
}

.page-privacy .privacy-chapter__lead a {
  color: var(--pv-primary);
  font-weight: 700;
  text-decoration-thickness: 2px;
  text-underline-offset: 3px;
}

/* ========== 信息要点列表 ========== */
.page-privacy .privacy-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-privacy .privacy-points li {
  position: relative;
  padding: 20px 20px 20px 24px;
  background: var(--pv-inverse);
  border: 1px solid #D5DCE7;
  border-left: 6px solid var(--pv-primary);
  box-shadow: var(--pv-shadow-sm);
}

.page-privacy .privacy-points h3 {
  margin: 0 0 8px;
  font-family: var(--pv-heading);
  font-size: 1.0625rem;
  font-weight: 800;
  color: var(--pv-deep);
}

.page-privacy .privacy-points p {
  margin: 0;
  line-height: 1.75;
  color: var(--pv-text);
  font-size: var(--size-body);
}

/* ========== 章节内提示与版本信息 ========== */
.page-privacy .privacy-chapter__note {
  margin-top: 20px;
  padding: 16px 18px;
  border: 1px dashed var(--pv-primary);
  background: rgba(255, 107, 0, 0.06);
  font-size: var(--size-small);
  line-height: 1.7;
  color: var(--pv-text);
}

.page-privacy .privacy-chapter__version {
  margin-top: 28px;
  padding: 18px 20px;
  border-left: 6px solid var(--pv-primary);
  background: var(--pv-deep);
  color: var(--pv-inverse);
  display: grid;
  gap: 8px;
}

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

/* ========== 底部协助区 ========== */
.page-privacy .privacy-assist {
  background: var(--pv-bg-dark);
  padding: 64px 0 80px;
  border-top: 4px solid var(--pv-primary);
}

.page-privacy .privacy-assist__panel {
  background: var(--pv-deep);
  border: 2px solid var(--pv-primary);
  box-shadow: var(--pv-shadow);
  padding: 28px;
  display: grid;
  gap: 28px;
  color: var(--pv-inverse);
}

.page-privacy .privacy-assist__label {
  margin: 0 0 12px;
  color: var(--pv-primary);
  font-weight: 700;
}

.page-privacy .privacy-assist__main h2 {
  font-family: var(--pv-heading);
  font-size: 1.75rem;
  line-height: 1.2;
  margin: 0 0 14px;
}

.page-privacy .privacy-assist__main p {
  line-height: 1.75;
  max-width: 620px;
  margin: 0;
  opacity: 0.92;
}

.page-privacy .privacy-assist__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.page-privacy .privacy-assist__contact {
  background: rgba(15, 20, 35, 0.55);
  border: 1px solid #2A3B4C;
  padding: 20px;
  min-width: 0;
}

.page-privacy .privacy-assist__contact-caption {
  font-family: var(--pv-mono);
  font-size: var(--size-small);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--pv-primary);
  margin: 0 0 14px;
  font-weight: 700;
}

.page-privacy .privacy-assist__contact-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 2px solid var(--pv-primary);
}

.page-privacy .privacy-assist__contact-list li {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.page-privacy .privacy-assist__contact-list span {
  font-family: var(--pv-mono);
  font-size: var(--size-small);
  color: var(--pv-primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.page-privacy .privacy-assist__contact-list strong {
  font-weight: 700;
  font-size: var(--size-body);
  word-break: break-word;
}

/* ========== 响应式增强 ========== */
@media (min-width: 768px) {
  .page-privacy .privacy-hero {
    padding: 200px 0 110px;
  }

  .page-privacy .privacy-layout {
    padding: 64px 0 96px;
  }

  .page-privacy .privacy-chapter__trigger {
    padding: 24px 28px;
  }

  .page-privacy .privacy-chapter__panel {
    padding: 32px 32px 40px;
  }

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

  .page-privacy .privacy-assist__panel {
    grid-template-columns: 1.3fr 1fr;
    padding: 36px;
  }

  .page-privacy .privacy-assist__actions {
    grid-column: 1 / -1;
  }
}

@media (min-width: 992px) {
  .page-privacy .privacy-layout__grid {
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 48px;
  }

  .page-privacy .privacy-toc__inner {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

  .page-privacy .privacy-chapter__heading {
    font-size: 1.25rem;
  }

  .page-privacy .privacy-chapter__num {
    font-size: 1.375rem;
  }
}