.page-privacy {
  --privacy-hero-clip: polygon(0 0, 100% 0, 100% 85%, 0 100%);
  --privacy-diamond-size: 24px;
  --privacy-diamond-color: rgba(255, 107, 53, 0.3);
  position: relative;
  background-color: var(--primary-background, #0D0D0D);
  color: var(--primary-text, #FFFFFF);
  font-family: var(--body-font, 'Inter', sans-serif);
}

/* ── 标题区 ── */
.privacy-hero {
  position: relative;
  overflow: hidden;
  min-height: 380px;
  display: flex;
  align-items: center;
}

.privacy-hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  z-index: 0;
}

.privacy-hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.55) 0%, rgba(0, 78, 124, 0.7) 60%, rgba(13, 13, 13, 0.9) 100%);
  clip-path: var(--privacy-hero-clip);
}

.privacy-hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--max-width, 1440px);
  margin: 0 auto;
  padding: 60px 24px 80px;
  width: 100%;
}

.privacy-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--body-scale-2, 14px);
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 24px;
}

.privacy-breadcrumb a {
  color: var(--brand-accent, #FF6B35);
  text-decoration: none;
  transition: opacity 0.2s;
}

.privacy-breadcrumb a:hover {
  opacity: 0.8;
}

.privacy-breadcrumb-sep {
  color: rgba(255, 255, 255, 0.4);
}

.privacy-hero-title {
  font-family: var(--heading-font, 'Montserrat', sans-serif);
  font-size: var(--heading-scale-1, 64px);
  font-weight: 900;
  line-height: 1.1;
  margin: 0 0 16px;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: #FFFFFF;
}

.privacy-hero-desc {
  font-size: var(--body-scale-1, 16px);
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.9);
  max-width: 640px;
  margin: 0 0 32px;
}

.privacy-hero-geo {
  display: flex;
  gap: 16px;
  align-items: center;
}

.geo-diamond {
  display: block;
  width: var(--privacy-diamond-size);
  height: var(--privacy-diamond-size);
  background: var(--privacy-diamond-color);
  transform: rotate(45deg);
  border: 1px solid rgba(255, 107, 53, 0.3);
}

.geo-diamond:nth-child(2) {
  width: calc(var(--privacy-diamond-size) * 1.6);
  height: calc(var(--privacy-diamond-size) * 1.6);
  opacity: 0.6;
}

.geo-diamond:nth-child(3) {
  opacity: 0.3;
}

/* ── 内容主体 ── */
.privacy-body {
  max-width: var(--max-width, 1440px);
  margin: 0 auto;
  padding: 0 24px 80px;
}

/* ── 快速导航 ── */
.privacy-quicknav {
  margin: -32px 0 48px;
  position: relative;
  z-index: 3;
}

.privacy-quicknav-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  background: var(--secondary-background, #1A1A2E);
  border: 2px solid var(--border-accent, #FF6B35);
  box-shadow: var(--shadow, 0 8px 32px rgba(255, 107, 53, 0.2));
  padding: 12px 16px;
}

.privacy-quicknav-link {
  display: block;
  padding: 8px 20px;
  font-size: var(--body-scale-2, 14px);
  font-weight: 600;
  color: var(--primary-text, #FFFFFF);
  text-decoration: none;
  border: 1px solid transparent;
  transition: all 0.25s ease;
  font-family: var(--heading-font, 'Montserrat', sans-serif);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.privacy-quicknav-link:hover,
.privacy-quicknav-link:focus {
  border-color: var(--brand-accent, #FF6B35);
  background: rgba(255, 107, 53, 0.12);
  color: var(--brand-accent, #FF6B35);
}

/* ── 通用区块 ── */
.privacy-section {
  padding: 56px 0;
  border-top: 4px solid var(--border-accent, #FF6B35);
}

.privacy-section--alt {
  background-color: var(--secondary-background, #1A1A2E);
  border-top-color: transparent;
  margin: 0 calc(-50vw + 50%);
  padding-left: calc(50vw - 50%);
  padding-right: calc(50vw - 50%);
}

.privacy-section--alt .privacy-section-inner {
  max-width: var(--max-width, 1440px);
  margin: 0 auto;
  padding: 0 24px;
}

.privacy-section-inner {
  max-width: var(--max-width, 1440px);
  margin: 0 auto;
  width: 100%;
}

.privacy-section-title {
  font-family: var(--heading-font, 'Montserrat', sans-serif);
  font-size: var(--heading-scale-3, 36px);
  font-weight: 900;
  line-height: 1.2;
  margin: 0 0 16px;
  color: var(--brand-accent, #FF6B35);
  text-transform: uppercase;
  letter-spacing: -0.01em;
  position: relative;
  display: inline-block;
}

.privacy-section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: var(--brand-accent, #FF6B35);
  margin-top: 8px;
}

.privacy-section-lead {
  font-size: var(--body-scale-1, 16px);
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.85);
  max-width: 720px;
  margin: 0 0 32px;
}

.privacy-section-note {
  font-size: var(--body-scale-2, 14px);
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.6);
  margin: 24px 0 0;
  padding: 12px 16px;
  border-left: 3px solid var(--secondary-accent, #004E7C);
  background: rgba(0, 78, 124, 0.1);
}

.privacy-section-note a {
  color: var(--brand-accent, #FF6B35);
  text-decoration: none;
}

.privacy-section-note a:hover {
  text-decoration: underline;
}

.privacy-section-divider {
  height: 1px;
  background: linear-gradient(90deg, var(--border-accent, #FF6B35) 0%, transparent 100%);
  margin-top: 48px;
  opacity: 0.3;
}

/* ── 信息收集 ── */
.privacy-collect-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-bottom: 32px;
}

.privacy-collect-item {
  padding: 24px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 107, 53, 0.15);
  transition: background 0.3s ease;
}

.privacy-collect-item:hover {
  background: rgba(255, 107, 53, 0.06);
}

.privacy-collect-heading {
  font-family: var(--heading-font, 'Montserrat', sans-serif);
  font-size: var(--heading-scale-4, 24px);
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--primary-text, #FFFFFF);
}

.privacy-collect-text {
  font-size: var(--body-scale-1, 16px);
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.8);
  margin: 0;
}

.privacy-collect-text a {
  color: var(--brand-accent, #FF6B35);
  text-decoration: none;
}

/* ── 折叠组件 ── */
.privacy-details {
  margin-top: 8px;
  border: 1px solid rgba(255, 107, 53, 0.2);
  background: rgba(0, 78, 124, 0.08);
}

.privacy-details-summary {
  padding: 14px 20px;
  font-size: var(--body-scale-2, 14px);
  font-weight: 600;
  color: var(--brand-accent, #FF6B35);
  cursor: pointer;
  user-select: none;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: background 0.2s;
}

.privacy-details-summary::-webkit-details-marker {
  display: none;
}

.privacy-details-summary::before {
  content: '+';
  font-size: 20px;
  font-weight: 700;
  line-height: 1;
  transition: transform 0.25s ease;
}

.privacy-details[open] .privacy-details-summary::before {
  content: '−';
}

.privacy-details-summary:hover {
  background: rgba(255, 107, 53, 0.08);
}

.privacy-details-content {
  padding: 0 20px 20px;
  font-size: var(--body-scale-2, 14px);
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.75);
}

/* ── 信息使用 ── */
.privacy-use-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 20px;
}

.privacy-use-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.02);
  border-left: 3px solid var(--secondary-accent, #004E7C);
  transition: border-color 0.3s, background 0.3s;
}

.privacy-use-item:hover {
  border-left-color: var(--brand-accent, #FF6B35);
  background: rgba(255, 107, 53, 0.04);
}

.privacy-use-icon {
  font-family: var(--mono-font, 'JetBrains Mono', monospace);
  font-size: var(--heading-scale-4, 24px);
  font-weight: 700;
  color: var(--brand-accent, #FF6B35);
  line-height: 1;
  flex-shrink: 0;
  min-width: 36px;
}

.privacy-use-item strong {
  display: block;
  font-family: var(--heading-font, 'Montserrat', sans-serif);
  font-size: var(--body-scale-1, 16px);
  font-weight: 700;
  color: var(--primary-text, #FFFFFF);
  margin-bottom: 4px;
}

.privacy-use-item p {
  margin: 0;
  font-size: var(--body-scale-2, 14px);
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.75);
}

/* ── 信息安全 ── */
.privacy-security-flex {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: start;
}

.privacy-security-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.privacy-security-li {
  padding: 12px 16px 12px 20px;
  font-size: var(--body-scale-1, 16px);
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.85);
  border-left: 2px solid var(--data-highlight, #00FF87);
  background: rgba(0, 255, 135, 0.04);
  transition: background 0.25s;
}

.privacy-security-li:hover {
  background: rgba(0, 255, 135, 0.08);
}

.privacy-security-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 24px 0;
}

.privacy-security-img {
  width: 100%;
  max-width: 300px;
  height: auto;
  object-fit: contain;
  border: 2px solid rgba(255, 107, 53, 0.2);
  box-shadow: var(--shadow, 0 8px 32px rgba(255, 107, 53, 0.2));
  position: relative;
  z-index: 1;
}

.privacy-security-shape {
  position: absolute;
  width: 120px;
  height: 120px;
  border: 2px solid rgba(0, 78, 124, 0.2);
  transform: rotate(45deg);
  top: 10%;
  right: 5%;
  z-index: 0;
  pointer-events: none;
}

/* ── 用户权利 ── */
.privacy-rights-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

.privacy-rights-card {
  padding: 24px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 107, 53, 0.12);
  position: relative;
  transition: all 0.3s ease;
}

.privacy-rights-card:hover {
  border-color: var(--brand-accent, #FF6B35);
  background: rgba(255, 107, 53, 0.05);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(255, 107, 53, 0.1);
}

.privacy-rights-num {
  font-family: var(--mono-font, 'JetBrains Mono', monospace);
  font-size: 48px;
  font-weight: 700;
  line-height: 1;
  color: rgba(255, 107, 53, 0.15);
  position: absolute;
  top: 8px;
  right: 16px;
  pointer-events: none;
  user-select: none;
}

.privacy-rights-heading {
  font-family: var(--heading-font, 'Montserrat', sans-serif);
  font-size: var(--heading-scale-4, 24px);
  font-weight: 700;
  margin: 0 0 8px;
  color: var(--primary-text, #FFFFFF);
}

.privacy-rights-text {
  font-size: var(--body-scale-1, 16px);
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.75);
  margin: 0;
  max-width: 480px;
}

/* ── 底部联系引导 ── */
.privacy-cta {
  margin-top: 56px;
  padding: 40px 32px;
  text-align: center;
  background: linear-gradient(135deg, rgba(255, 107, 53, 0.08) 0%, rgba(0, 78, 124, 0.15) 100%);
  border: 2px solid var(--brand-accent, #FF6B35);
  box-shadow: var(--shadow, 0 8px 32px rgba(255, 107, 53, 0.2));
}

.privacy-cta-text {
  font-size: var(--heading-scale-4, 24px);
  font-weight: 600;
  color: var(--primary-text, #FFFFFF);
  margin: 0 0 24px;
  font-family: var(--heading-font, 'Montserrat', sans-serif);
}

.privacy-cta-btn {
  display: inline-block;
  padding: 14px 48px;
  font-family: var(--heading-font, 'Montserrat', sans-serif);
  font-size: var(--body-scale-1, 16px);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #FFFFFF;
  background: var(--brand-accent, #FF6B35);
  text-decoration: none;
  border: 2px solid var(--brand-accent, #FF6B35);
  transition: all 0.3s ease;
}

.privacy-cta-btn:hover {
  background: transparent;
  color: var(--brand-accent, #FF6B35);
  box-shadow: inset 0 0 0 1px var(--brand-accent, #FF6B35);
}

/* ── 桌面端 ── */
@media (min-width: 768px) {
  .privacy-hero {
    min-height: 460px;
  }

  .privacy-hero-content {
    padding: 80px 48px 100px;
  }

  .privacy-hero-title {
    font-size: var(--heading-scale-1, 64px);
  }

  .privacy-hero-desc {
    font-size: 18px;
    max-width: 600px;
  }

  .privacy-body {
    padding: 0 48px 100px;
  }

  .privacy-quicknav {
    margin: -40px 0 64px;
  }

  .privacy-quicknav-list {
    padding: 16px 24px;
    gap: 16px;
  }

  .privacy-collect-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .privacy-use-list {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .privacy-use-item {
    padding: 20px 24px;
  }

  .privacy-security-flex {
    grid-template-columns: 1fr 300px;
    gap: 48px;
  }

  .privacy-rights-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }

  .privacy-section-title {
    font-size: var(--heading-scale-2, 48px);
  }

  .privacy-cta {
    padding: 56px 48px;
  }
}

@media (min-width: 1200px) {
  .privacy-hero-content {
    padding: 100px 64px 120px;
  }

  .privacy-body {
    padding: 0 64px 120px;
  }

  .privacy-hero-title {
    font-size: 72px;
  }

  .privacy-rights-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .privacy-security-flex {
    grid-template-columns: 1fr 360px;
  }
}