.page-privacy {
  --privacy-grid-line: rgba(192, 192, 192, 0.05);
  --privacy-grid-size: 44px;
  --privacy-gap: 64px;
  --privacy-blue-glow: rgba(0, 85, 255, 0.18);
  background-color: var(--bg-primary);
  background-image:
    linear-gradient(var(--privacy-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--privacy-grid-line) 1px, transparent 1px);
  background-size: var(--privacy-grid-size) var(--privacy-grid-size);
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
  position: relative;
}

.page-privacy::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 360px;
  height: 360px;
  background: radial-gradient(circle, var(--privacy-blue-glow), transparent 68%);
  pointer-events: none;
  z-index: 0;
}

.page-privacy .privacy-container {
  position: relative;
  z-index: 1;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad) 96px;
}

/* 面包屑 */
.page-privacy .page-breadcrumb {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 32px;
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--metal);
}

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

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

/* 页面首部 */
.page-privacy .privacy-head {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 48px 0 40px;
  margin-bottom: 48px;
  border-bottom: 1px solid var(--border);
}

.page-privacy .page-index {
  display: inline-block;
  width: fit-content;
  font-family: var(--font-headline);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.22em;
  color: var(--accent);
  background: var(--bg-deep);
  border: 1px solid var(--border);
  padding: 10px 14px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%);
}

.page-privacy .privacy-head-main {
  min-width: 0;
}

.page-privacy .page-title {
  font-family: var(--font-headline);
  font-size: clamp(28px, 4.2vw, 48px);
  font-weight: 200;
  line-height: 1.18;
  letter-spacing: 0.01em;
  color: var(--white);
  margin: 0;
  max-width: 14em;
}

.page-privacy .page-desc {
  position: relative;
  font-size: 16px;
  line-height: 1.9;
  color: var(--metal);
  max-width: 62ch;
  margin: 0;
  padding-left: 18px;
  border-left: 2px solid var(--accent);
}

.page-privacy .privacy-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

/* 文档栅格 */
.page-privacy .privacy-doc {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 36px;
}

/* 目录 */
.page-privacy .privacy-toc {
  background: rgba(16, 24, 40, 0.7);
  border: 1px solid var(--border);
  padding: 20px 16px;
}

.page-privacy .privacy-toc-title {
  font-family: var(--font-headline);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--metal);
  margin: 0 0 14px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.page-privacy .privacy-toc-title::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}

.page-privacy .privacy-toc-nav {
  min-width: 0;
}

.page-privacy .privacy-toc-list {
  list-style: none;
  margin: 0;
  padding: 0 0 8px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.page-privacy .privacy-toc-list a {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 10px 14px;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  color: var(--metal);
  font-size: 13px;
  white-space: nowrap;
  text-decoration: none;
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}

.page-privacy .privacy-toc-list a:hover,
.page-privacy .privacy-toc-list a:focus-visible {
  border-color: var(--accent);
  color: var(--white);
  background: var(--bg-secondary);
}

.page-privacy .privacy-toc-list .toc-num {
  font-family: var(--font-headline);
  font-size: 11px;
  font-weight: 700;
  color: var(--blue);
}

.page-privacy .privacy-toc-note {
  display: none;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.page-privacy .privacy-toc-note p {
  font-size: 13px;
  line-height: 1.75;
  color: var(--metal);
  margin: 12px 0 0;
}

/* 正文主体 */
.page-privacy .privacy-content {
  min-width: 0;
}

/* 政策章节 */
.page-privacy .policy-section {
  padding-bottom: var(--privacy-gap);
  margin-bottom: var(--privacy-gap);
  border-bottom: 1px solid var(--border);
  scroll-margin-top: 96px;
}

.page-privacy .policy-section:last-of-type {
  border-bottom: none;
  margin-bottom: 0;
  padding-bottom: 0;
}

.page-privacy .policy-sec-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 24px;
}

.page-privacy .policy-sec-num {
  font-family: var(--font-headline);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--blue);
  flex: 0 0 auto;
}

.page-privacy .policy-section h2 {
  font-family: var(--font-headline);
  font-size: clamp(21px, 2.4vw, 28px);
  font-weight: 200;
  letter-spacing: 0.02em;
  color: var(--white);
  margin: 0;
  background-image: linear-gradient(var(--accent), var(--accent));
  background-size: 0 2px;
  background-position: 0 100%;
  background-repeat: no-repeat;
  transition: background-size 0.3s ease;
}

.page-privacy .policy-section h2:hover {
  background-size: 100% 2px;
}

.page-privacy .policy-section > p {
  font-size: 15px;
  line-height: 1.9;
  color: var(--metal);
  margin: 0 0 20px;
  max-width: 72ch;
}

/* 政策信息列表 */
.page-privacy .policy-list {
  list-style: none;
  margin: 24px 0 28px;
  padding: 0;
  border-top: 1px solid var(--border);
}

.page-privacy .policy-list li {
  position: relative;
  padding: 16px 0 16px 28px;
  border-bottom: 1px solid var(--border);
  font-size: 15px;
  line-height: 1.8;
  color: var(--metal);
}

.page-privacy .policy-list li::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 25px;
  width: 6px;
  height: 6px;
  background: var(--accent);
  transform: rotate(45deg);
}

.page-privacy .policy-list strong {
  color: var(--white);
  font-weight: 600;
  margin-right: 8px;
}

/* 使用场景网格 */
.page-privacy .usage-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
  margin: 24px 0 28px;
}

.page-privacy .usage-item {
  position: relative;
  background: rgba(26, 42, 63, 0.55);
  border: 1px solid var(--border);
  padding: 20px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
  transition: border-color var(--transition), background var(--transition);
}

.page-privacy .usage-item:hover {
  border-color: rgba(0, 255, 136, 0.55);
  background: var(--bg-secondary);
}

.page-privacy .usage-index {
  display: inline-block;
  font-family: var(--font-headline);
  font-size: 12px;
  font-weight: 700;
  color: var(--accent);
  border: 1px solid var(--border);
  padding: 3px 8px;
  margin-bottom: 12px;
}

.page-privacy .usage-item h3 {
  font-family: var(--font-headline);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--white);
  margin: 0 0 10px;
}

.page-privacy .usage-item p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--metal);
  margin: 0;
}

/* 提示条 */
.page-privacy .policy-note {
  border-left: 3px solid var(--accent);
  background: linear-gradient(90deg, rgba(0, 255, 136, 0.07), transparent);
  padding: 16px 20px;
  margin: 24px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--metal);
}

/* 安全章节插图 */
.page-privacy .policy-sec-img {
  margin: 28px 0 32px;
  border: 1px solid var(--border);
  background: var(--bg-deep);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 20px 100%, 0 calc(100% - 20px));
}

.page-privacy .policy-sec-img img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* 安全特性网格 */
.page-privacy .security-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 14px;
  margin: 0 0 28px;
  padding: 0;
}

.page-privacy .security-item {
  position: relative;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  padding: 20px;
}

.page-privacy .security-item::after {
  content: "";
  position: absolute;
  top: -1px;
  right: -1px;
  width: 22px;
  height: 22px;
  background: linear-gradient(135deg, transparent 50%, var(--accent) 50%);
  opacity: 0.45;
}

.page-privacy .security-item h3 {
  font-family: var(--font-headline);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--accent);
  margin: 0 0 10px;
}

.page-privacy .security-item p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--metal);
  margin: 0;
}

/* 权利区块 */
.page-privacy .rights-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* 联系信息 */
.page-privacy .privacy-contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 14px;
  margin: 28px 0 20px;
}

.page-privacy .contact-block {
  position: relative;
  background: var(--bg-deep);
  border: 1px solid var(--border);
  padding: 20px;
}

.page-privacy .contact-block::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--accent);
  opacity: 0.7;
}

.page-privacy .contact-label {
  display: block;
  font-family: var(--font-headline);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gold);
  margin-bottom: 8px;
}

.page-privacy .contact-value {
  display: block;
  font-size: 16px;
  font-weight: 600;
  color: var(--white);
  line-height: 1.5;
  margin-bottom: 8px;
}

.page-privacy .contact-meta {
  display: block;
  font-size: 13px;
  line-height: 1.6;
  color: var(--metal);
}

/* 关联页面入口 */
.page-privacy .policy-next {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

/* 桌面端 ≥ 900px */
@media (min-width: 900px) {
  .page-privacy .privacy-head {
    flex-direction: row;
    align-items: flex-start;
    gap: 32px;
    padding-top: 64px;
    padding-bottom: 52px;
    margin-bottom: 56px;
  }

  .page-privacy .privacy-doc {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 64px;
    align-items: start;
  }

  .page-privacy .privacy-toc {
    position: sticky;
    top: 100px;
    background: transparent;
    border: none;
    border-left: 1px solid var(--accent);
    padding: 4px 0 4px 20px;
  }

  .page-privacy .privacy-toc-title::after {
    display: none;
  }

  .page-privacy .privacy-toc-list {
    flex-direction: column;
    gap: 2px;
    overflow: visible;
    padding-bottom: 0;
  }

  .page-privacy .privacy-toc-list a {
    display: flex;
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--border);
    border-radius: 0;
    padding: 12px 10px;
    white-space: normal;
  }

  .page-privacy .privacy-toc-list a:hover,
  .page-privacy .privacy-toc-list a:focus-visible {
    background: transparent;
    color: var(--accent);
    padding-left: 16px;
  }

  .page-privacy .privacy-toc-note {
    display: block;
  }

  .page-privacy .policy-section {
    scroll-margin-top: 100px;
  }
}