/* ===== 页面专属：数据与隐私 (.page-privacy) ===== */
.page-privacy {
  --privacy-accent-line: var(--color-accent-purple, #7B2D8E);
  --privacy-highlight-bg: rgba(255, 215, 0, 0.18);
  --privacy-card-bg: rgba(11, 29, 58, 0.65);
  --privacy-card-border: rgba(165, 91, 238, 0.25);
  --privacy-flow-speed: 3s;

  position: relative;
  background-color: var(--color-primary, #0B1D3A);
  color: var(--color-warm-white, #F5F5F5);
  font-family: "Inter", system-ui, sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* ---- 滚动进度条 ---- */
.page-privacy .progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent-yellow, #FFD700), var(--color-accent-blue, #00D4FF));
  z-index: 1000;
  transition: width 0.1s ease;
  box-shadow: 0 0 12px rgba(0, 212, 255, 0.5);
}

/* ---- 容器 ---- */
.page-privacy .container {
  max-width: var(--max-width, 1200px);
  margin: 0 auto;
  padding: 0 var(--spacer-md, 1rem);
  box-sizing: border-box;
}

/* ---- 面包屑 ---- */
.page-privacy .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacer-xs, 0.25rem);
  font-size: var(--font-small, 0.875rem);
  color: rgba(245, 245, 245, 0.6);
  margin-bottom: var(--spacer-md, 1rem);
  letter-spacing: 0.02em;
}

.page-privacy .breadcrumb a {
  color: var(--color-accent-blue, #00D4FF);
  text-decoration: none;
  transition: color 0.25s;
}

.page-privacy .breadcrumb a:hover,
.page-privacy .breadcrumb a:focus-visible {
  color: var(--color-accent-yellow, #FFD700);
  text-decoration: underline;
}

.page-privacy .breadcrumb .separator {
  color: var(--privacy-accent-line);
  margin: 0 var(--spacer-xs, 0.25rem);
}

.page-privacy .breadcrumb .current {
  color: var(--color-warm-white, #F5F5F5);
  font-weight: 600;
}

/* ---- 标题区 ---- */
.page-privacy .privacy-hero {
  position: relative;
  padding: var(--spacer-xl, 4rem) 0 var(--spacer-lg, 2rem);
  background: linear-gradient(175deg, rgba(11, 29, 58, 1) 60%, rgba(123, 45, 142, 0.12) 100%);
  overflow: hidden;
}

.page-privacy .privacy-hero::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.page-privacy .privacy-hero::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent-yellow, #FFD700), var(--privacy-accent-line), var(--color-accent-blue, #00D4FF));
  opacity: 0.5;
  transform: skewY(-0.5deg);
  pointer-events: none;
}

.page-privacy .privacy-hero-inner {
  position: relative;
  z-index: 1;
}

.page-privacy .privacy-title {
  font-size: var(--font-h1, 2.5rem);
  font-weight: 800;
  letter-spacing: 0.06em;
  line-height: 1.15;
  margin: 0 0 var(--spacer-sm, 0.5rem);
  background: linear-gradient(135deg, #FFFFFF 0%, var(--color-soft-purple, #A55BEE) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: none;
  position: relative;
}

.page-privacy .privacy-subtitle {
  font-size: calc(var(--font-body, 1rem) + 0.15rem);
  color: rgba(245, 245, 245, 0.75);
  max-width: 680px;
  line-height: 1.6;
  margin: 0 0 var(--spacer-lg, 2rem);
  font-weight: 400;
}

/* ---- 标题区装饰图片 ---- */
.page-privacy .privacy-hero-visual {
  position: relative;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
  margin-top: var(--spacer-md, 1rem);
}

.page-privacy .privacy-hero-img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  aspect-ratio: 1200 / 400;
}

.page-privacy .hero-visual-accent {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(123, 45, 142, 0.15) 0%, transparent 50%, rgba(0, 212, 255, 0.1) 100%);
  pointer-events: none;
  mix-blend-mode: overlay;
}

/* ---- 政策概述 ---- */
.page-privacy .privacy-intro {
  padding: var(--spacer-xl, 4rem) 0 var(--spacer-lg, 2rem);
  border-bottom: 1px solid rgba(165, 91, 238, 0.2);
}

.page-privacy .privacy-intro .section-title {
  font-size: var(--font-h2, 1.75rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  margin: 0 0 var(--spacer-md, 1rem);
  background: linear-gradient(135deg, var(--color-accent-yellow, #FFD700), var(--color-soft-purple, #A55BEE));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
}

.page-privacy .privacy-intro .intro-text {
  font-size: var(--font-body, 1rem);
  max-width: 780px;
  color: rgba(245, 245, 245, 0.85);
  margin: 0;
  line-height: 1.8;
}

.page-privacy .domain-highlight {
  color: var(--color-accent-blue, #00D4FF);
  font-weight: 500;
  letter-spacing: 0.02em;
}

/* ---- 折叠面板区域 ---- */
.page-privacy .privacy-panels {
  padding: var(--spacer-lg, 2rem) 0 var(--spacer-xl, 4rem);
}

.page-privacy .sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ---- 单个折叠面板 ---- */
.page-privacy .privacy-panel {
  display: block;
  background: var(--privacy-card-bg);
  border: 1px solid var(--privacy-card-border);
  border-left: 4px solid var(--privacy-accent-line);
  border-radius: 0 8px 8px 0;
  margin-bottom: var(--spacer-md, 1rem);
  overflow: hidden;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.page-privacy .privacy-panel[open] {
  border-left-color: var(--color-accent-yellow, #FFD700);
  box-shadow: 0 4px 24px rgba(123, 45, 142, 0.15);
}

.page-privacy .panel-summary {
  display: flex;
  align-items: center;
  gap: var(--spacer-sm, 0.5rem);
  padding: var(--spacer-md, 1rem) var(--spacer-lg, 2rem);
  cursor: pointer;
  list-style: none;
  user-select: none;
  transition: background 0.25s;
  position: relative;
}

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

.page-privacy .panel-summary:hover,
.page-privacy .panel-summary:focus-visible {
  background: rgba(255, 215, 0, 0.04);
}

.page-privacy .panel-summary:focus-visible {
  outline: 2px solid var(--color-accent-yellow, #FFD700);
  outline-offset: -2px;
}

.page-privacy .panel-icon {
  flex-shrink: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--privacy-accent-line);
  transition: background 0.3s, transform 0.3s;
}

.page-privacy .privacy-panel[open] .panel-icon {
  background: var(--color-accent-yellow, #FFD700);
  transform: scale(1.25);
  box-shadow: 0 0 8px rgba(255, 215, 0, 0.4);
}

.page-privacy .panel-title {
  font-size: var(--font-h3, 1.25rem);
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--color-warm-white, #F5F5F5);
  flex: 1;
}

.page-privacy .panel-toggle {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  position: relative;
  transition: transform 0.35s ease;
}

.page-privacy .panel-toggle::before,
.page-privacy .panel-toggle::after {
  content: "";
  position: absolute;
  background: var(--color-accent-blue, #00D4FF);
  border-radius: 2px;
  transition: transform 0.35s ease, opacity 0.35s ease;
}

.page-privacy .panel-toggle::before {
  width: 16px;
  height: 2px;
  top: 9px;
  left: 2px;
}

.page-privacy .panel-toggle::after {
  width: 2px;
  height: 16px;
  top: 2px;
  left: 9px;
}

.page-privacy .privacy-panel[open] .panel-toggle {
  transform: rotate(45deg);
}

.page-privacy .privacy-panel[open] .panel-toggle::after {
  opacity: 0;
  transform: scaleY(0);
}

/* ---- 面板内容 ---- */
.page-privacy .panel-body {
  padding: 0 var(--spacer-lg, 2rem) var(--spacer-lg, 2rem);
  color: rgba(245, 245, 245, 0.88);
  font-size: var(--font-body, 1rem);
  line-height: 1.75;
  animation: panel-fade-in 0.4s ease;
}

@keyframes panel-fade-in {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-privacy .panel-body p {
  margin: 0 0 var(--spacer-md, 1rem);
}

.page-privacy .panel-body p:last-child {
  margin-bottom: 0;
}

.page-privacy .panel-list {
  margin: var(--spacer-sm, 0.5rem) 0 var(--spacer-md, 1rem);
  padding-left: var(--spacer-lg, 2rem);
  list-style: none;
}

.page-privacy .panel-list li {
  position: relative;
  padding-left: var(--spacer-md, 1rem);
  margin-bottom: var(--spacer-xs, 0.25rem);
}

.page-privacy .panel-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--privacy-accent-line);
  font-weight: 300;
}

.page-privacy .highlight-yellow {
  color: var(--color-accent-yellow, #FFD700);
  font-weight: 600;
  background: var(--privacy-highlight-bg);
  padding: 0.04em 0.3em;
  border-radius: 3px;
  letter-spacing: 0.02em;
}

.page-privacy .panel-note {
  font-size: var(--font-small, 0.875rem);
  color: rgba(245, 245, 245, 0.65);
  border-left: 2px solid rgba(165, 91, 238, 0.35);
  padding-left: var(--spacer-md, 1rem);
  margin-top: var(--spacer-sm, 0.5rem);
}

.page-privacy .panel-commitment {
  font-weight: 500;
  color: rgba(245, 245, 245, 0.92);
  border-left: 2px solid var(--color-accent-yellow, #FFD700);
  padding-left: var(--spacer-md, 1rem);
}

/* ---- 联系信息块 ---- */
.page-privacy .contact-block {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacer-xs, 0.25rem) var(--spacer-sm, 0.5rem);
  background: rgba(0, 212, 255, 0.06);
  border: 1px solid rgba(0, 212, 255, 0.15);
  border-radius: 6px;
  padding: var(--spacer-sm, 0.5rem) var(--spacer-md, 1rem);
  margin: var(--spacer-sm, 0.5rem) 0 var(--spacer-md, 1rem);
  font-size: var(--font-small, 0.875rem);
}

.page-privacy .contact-label {
  color: rgba(245, 245, 245, 0.5);
  font-weight: 400;
}

.page-privacy .contact-link {
  color: var(--color-accent-blue, #00D4FF);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.25s;
}

.page-privacy .contact-link:hover,
.page-privacy .contact-link:focus-visible {
  color: var(--color-accent-yellow, #FFD700);
  text-decoration: underline;
}

.page-privacy .contact-text {
  color: var(--color-warm-white, #F5F5F5);
  font-weight: 500;
}

.page-privacy .contact-sep {
  color: var(--privacy-accent-line);
  opacity: 0.4;
  margin: 0 var(--spacer-xs, 0.25rem);
}

/* ---- 面板之间的数据流动线 ---- */
.page-privacy .data-flow-line {
  height: 1px;
  background: linear-gradient(90deg,
    transparent 0%,
    var(--privacy-accent-line) 20%,
    var(--color-accent-blue, #00D4FF) 50%,
    var(--privacy-accent-line) 80%,
    transparent 100%);
  margin: var(--spacer-sm, 0.5rem) 0 var(--spacer-sm, 0.5rem);
  opacity: 0.6;
  position: relative;
  overflow: visible;
}

.page-privacy .data-flow-line::after {
  content: "";
  position: absolute;
  top: -2px;
  left: -10%;
  width: 30px;
  height: 5px;
  background: var(--color-accent-blue, #00D4FF);
  border-radius: 50%;
  filter: blur(6px);
  animation: flow-line-move var(--privacy-flow-speed) ease-in-out infinite;
}

@keyframes flow-line-move {
  0% {
    left: -10%;
    opacity: 0.3;
  }
  50% {
    opacity: 1;
  }
  100% {
    left: 110%;
    opacity: 0.2;
  }
}

/* ---- 关联链接区 ---- */
.page-privacy .privacy-related {
  padding: var(--spacer-xl, 4rem) 0 var(--spacer-lg, 2rem);
  border-top: 1px solid rgba(165, 91, 238, 0.2);
  border-bottom: 1px solid rgba(165, 91, 238, 0.1);
}

.page-privacy .privacy-related .section-title {
  font-size: calc(var(--font-h2, 1.75rem) - 0.15rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  margin: 0 0 var(--spacer-md, 1rem);
  background: linear-gradient(135deg, var(--color-accent-yellow, #FFD700), var(--color-soft-purple, #A55BEE));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
}

.page-privacy .related-text {
  font-size: var(--font-body, 1rem);
  color: rgba(245, 245, 245, 0.85);
  margin: 0 0 var(--spacer-sm, 0.5rem);
  max-width: 680px;
}

.page-privacy .related-text .brand-link {
  color: var(--color-accent-blue, #00D4FF);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.25s, border-bottom 0.25s;
  border-bottom: 1px solid transparent;
}

.page-privacy .related-text .brand-link:hover,
.page-privacy .related-text .brand-link:focus-visible {
  color: var(--color-accent-yellow, #FFD700);
  border-bottom-color: var(--color-accent-yellow, #FFD700);
}

.page-privacy .related-note {
  font-size: var(--font-small, 0.875rem);
  color: rgba(245, 245, 245, 0.55);
  margin: var(--spacer-md, 1rem) 0 0;
  font-style: italic;
}

/* ---- 页脚注 ---- */
.page-privacy .privacy-footnote {
  padding: var(--spacer-lg, 2rem) 0;
}

.page-privacy .footnote-text {
  font-size: var(--font-small, 0.875rem);
  color: rgba(245, 245, 245, 0.4);
  margin: 0;
  text-align: center;
  letter-spacing: 0.04em;
}

/* ===== 响应式：移动端优先 已实现，桌面增强 ===== */
@media (min-width: 768px) {
  .page-privacy .container {
    padding: 0 var(--spacer-lg, 2rem);
  }

  .page-privacy .privacy-hero {
    padding: var(--spacer-xl, 4rem) 0 var(--spacer-lg, 2rem);
  }

  .page-privacy .privacy-title {
    font-size: calc(var(--font-h1, 2.5rem) + 0.5rem);
    letter-spacing: 0.08em;
  }

  .page-privacy .privacy-subtitle {
    font-size: calc(var(--font-body, 1rem) + 0.3rem);
    max-width: 720px;
  }

  .page-privacy .privacy-hero-visual {
    margin-top: var(--spacer-lg, 2rem);
    border-radius: 8px;
  }

  .page-privacy .privacy-intro {
    padding: var(--spacer-xl, 4rem) 0 var(--spacer-lg, 2rem);
  }

  .page-privacy .privacy-intro .intro-text {
    font-size: calc(var(--font-body, 1rem) + 0.1rem);
    max-width: 820px;
  }

  .page-privacy .privacy-panels {
    padding: var(--spacer-lg, 2rem) 0 var(--spacer-xl, 4rem);
  }

  .page-privacy .privacy-panel {
    margin-bottom: var(--spacer-lg, 2rem);
    border-radius: 0 12px 12px 0;
  }

  .page-privacy .panel-summary {
    padding: var(--spacer-lg, 2rem) var(--spacer-xl, 4rem);
  }

  .page-privacy .panel-title {
    font-size: calc(var(--font-h3, 1.25rem) + 0.15rem);
  }

  .page-privacy .panel-body {
    padding: 0 var(--spacer-xl, 4rem) var(--spacer-xl, 4rem);
    font-size: calc(var(--font-body, 1rem) + 0.05rem);
  }

  .page-privacy .panel-list {
    padding-left: var(--spacer-xl, 4rem);
  }

  .page-privacy .panel-list li {
    padding-left: var(--spacer-lg, 2rem);
    margin-bottom: var(--spacer-sm, 0.5rem);
  }

  .page-privacy .data-flow-line {
    margin: var(--spacer-md, 1rem) 0;
  }

  .page-privacy .privacy-related {
    padding: var(--spacer-xl, 4rem) 0 var(--spacer-lg, 2rem);
  }

  .page-privacy .privacy-related .section-title {
    font-size: var(--font-h2, 1.75rem);
  }

  .page-privacy .contact-block {
    font-size: var(--font-body, 1rem);
    padding: var(--spacer-md, 1rem) var(--spacer-lg, 2rem);
    gap: var(--spacer-sm, 0.5rem) var(--spacer-md, 1rem);
  }
}

@media (min-width: 1024px) {
  .page-privacy .privacy-title {
    font-size: 3.2rem;
    max-width: 900px;
  }

  .page-privacy .privacy-hero::before {
    width: 600px;
    height: 600px;
    top: -40%;
    right: -5%;
  }

  .page-privacy .privacy-panels .container {
    max-width: 960px;
  }

  .page-privacy .privacy-related .container {
    max-width: 880px;
  }
}

/* ---- 减小动画偏好 ---- */
@media (prefers-reduced-motion: reduce) {
  .page-privacy .data-flow-line::after {
    animation: none;
    opacity: 0.4;
    left: 50%;
    transform: translateX(-50%);
  }

  .page-privacy .panel-body {
    animation: none;
  }

  .page-privacy .panel-toggle {
    transition: none;
  }

  .page-privacy .privacy-panel[open] .panel-toggle {
    transform: none;
  }
}