.page-privacy {
  --pp-ink: #2c3b55;
  --pp-hair: rgba(11, 29, 58, 0.09);
  --pp-water-soft: rgba(0, 180, 216, 0.16);
  --pp-track: var(--bar, 64px);

  position: relative;
  display: block;
  padding: 2.5rem 0 5rem;
  background-color: var(--sand);
  background-image: radial-gradient(1100px 420px at 88% -12%, rgba(0, 180, 216, 0.13), transparent 68%);
  background-repeat: no-repeat;
  color: var(--navy);
  font-family: var(--font-sans);
  overflow: hidden;
}

/* 面包屑 */
.page-privacy__crumbs {
  margin-bottom: 2rem;
}

.page-privacy__crumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--rock);
}

.page-privacy__crumb-list .breadcrumbs__link,
.page-privacy__crumb-list .breadcrumbs__current {
  color: var(--rock);
  text-decoration: none;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}

.page-privacy__crumb-list .breadcrumbs__link:hover,
.page-privacy__crumb-list .breadcrumbs__link:focus-visible {
  color: var(--water);
}

.page-privacy__crumb-list li + li::before {
  content: "/";
  margin-right: 0.4rem;
  color: var(--mist);
}

.page-privacy__crumb-list li + li {
  display: inline-flex;
  align-items: center;
}

/* 页首 */
.page-privacy__head {
  max-width: 44rem;
  margin-bottom: 2.25rem;
}

.page-privacy__title {
  margin: 0.7rem 0 1.1rem;
  font-size: clamp(1.85rem, 6.2vw, 3.25rem);
  font-weight: 300;
  line-height: 1.18;
  letter-spacing: 0.02em;
  color: var(--navy);
}

.page-privacy__lede {
  margin: 0;
  max-width: 40rem;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--pp-ink);
}

/* 顶部装饰图 */
.page-privacy__banner {
  position: relative;
  margin: 0 0 2.75rem;
  border-radius: var(--radius-a);
  overflow: hidden;
  background: var(--navy-deep);
  box-shadow: 0 24px 60px -36px rgba(11, 29, 58, 0.7);
}

.page-privacy__banner img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  opacity: 0.94;
}

.page-privacy__banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(11, 29, 58, 0.05) 42%, rgba(11, 29, 58, 0.52) 100%),
    repeating-linear-gradient(90deg, rgba(0, 180, 216, 0.14) 0 1px, transparent 1px 24px);
  pointer-events: none;
}

/* 条款目录 */
.page-privacy__toc {
  margin-bottom: 3rem;
  padding: 1.4rem 1.25rem 1.2rem;
  border: 1px solid var(--pp-water-soft);
  border-radius: var(--radius-b);
  background: rgba(255, 255, 255, 0.72);
}

.page-privacy__toc-label {
  margin: 0 0 1rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--rock);
}

.page-privacy__toc-list {
  display: grid;
  gap: 0.15rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-privacy__toc-link {
  display: flex;
  align-items: baseline;
  gap: 0.7rem;
  padding: 0.55rem 0.6rem;
  border-radius: 999px;
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--pp-ink);
  text-decoration: none;
  transition: color 0.2s var(--ease-out, ease), background-color 0.2s var(--ease-out, ease);
}

.page-privacy__toc-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--water);
}

.page-privacy__toc-link:hover,
.page-privacy__toc-link:focus-visible {
  background: rgba(0, 180, 216, 0.1);
  color: var(--navy);
}

.page-privacy__toc-link[aria-current] {
  background: rgba(0, 180, 216, 0.14);
  color: var(--navy);
  font-weight: 600;
}

.page-privacy__toc-link[aria-current] .page-privacy__toc-num {
  color: var(--aqua);
  text-shadow: 0 0 10px rgba(0, 245, 212, 0.6);
}

/* 正文骨架 */
.page-privacy__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
}

.page-privacy__rail {
  display: none;
}

.page-privacy__column {
  min-width: 0;
}

/* 章节 */
.page-privacy__section {
  max-width: 44rem;
  margin-bottom: 3rem;
  scroll-margin-top: 6rem;
}

.page-privacy__section--last {
  margin-bottom: 2rem;
}

.page-privacy__index {
  margin: 0 0 0.55rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--water);
}

.page-privacy__section-title {
  margin: 0 0 1.15rem;
  font-size: clamp(1.3rem, 4.4vw, 1.8rem);
  font-weight: 600;
  line-height: 1.32;
  letter-spacing: 0.01em;
  color: var(--navy);
}

.page-privacy__prose p {
  margin: 0 0 1.75rem;
  font-size: 0.9688rem;
  line-height: 1.85;
  color: var(--pp-ink);
}

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

.page-privacy__inline-link {
  color: var(--navy);
  text-decoration: none;
  border-bottom: 1px solid var(--water);
  padding-bottom: 1px;
}

.page-privacy__inline-link:hover,
.page-privacy__inline-link:focus-visible {
  color: var(--water);
}

/* 定义式条目 */
.page-privacy__defs {
  display: grid;
  gap: 1.5rem;
  margin: 0 0 1.75rem;
}

.page-privacy__def {
  position: relative;
  padding-left: 1.15rem;
}

.page-privacy__def::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45rem;
  width: 3px;
  height: 1.4rem;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--water), rgba(0, 180, 216, 0.15));
}

.page-privacy__def dt {
  margin-bottom: 0.45rem;
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--navy);
}

.page-privacy__def dd {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--pp-ink);
}

/* 用途列表 */
.page-privacy__uses {
  display: grid;
  gap: 1.1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-privacy__use {
  padding: 1rem 1.15rem 1.05rem;
  border-radius: var(--radius-a);
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--pp-hair);
}

.page-privacy__use-tag {
  display: inline-block;
  margin-bottom: 0.55rem;
  padding: 0.2rem 0.7rem;
  border-radius: 999px;
  background: rgba(0, 180, 216, 0.14);
  color: var(--navy);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
}

.page-privacy__use p {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--pp-ink);
}

/* 圆点列表 */
.page-privacy__bullets {
  display: grid;
  gap: 0.7rem;
  margin: 0 0 1.75rem;
  padding: 0;
  list-style: none;
}

.page-privacy__bullets li {
  position: relative;
  padding-left: 1.3rem;
  font-size: 0.9375rem;
  line-height: 1.8;
  color: var(--pp-ink);
}

.page-privacy__bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72rem;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--water);
}

/* 深色小结面板 */
.page-privacy__brief {
  position: relative;
  margin: 0.5rem 0 3rem;
  padding: 1.9rem 1.35rem 1.75rem;
  border-radius: var(--radius-c);
  border: 1px solid rgba(0, 180, 216, 0.42);
  background:
    linear-gradient(155deg, var(--navy-panel) 0%, var(--navy-deep) 100%);
  color: var(--ivory);
  overflow: hidden;
  scroll-margin-top: 6rem;
}

.page-privacy__brief::after {
  content: "";
  position: absolute;
  right: -70px;
  bottom: -90px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 245, 212, 0.24), transparent 70%);
  pointer-events: none;
}

.page-privacy__brief-label {
  margin: 0 0 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--aqua);
}

.page-privacy__brief-title {
  position: relative;
  z-index: 1;
  margin: 0 0 1.35rem;
  font-size: clamp(1.15rem, 3.8vw, 1.5rem);
  font-weight: 600;
  line-height: 1.42;
  color: var(--ivory);
}

.page-privacy__brief-list {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 0;
  margin: 0 0 1.3rem;
  padding: 0;
  list-style: none;
}

.page-privacy__brief-list li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.72rem 0;
  border-bottom: 1px solid rgba(168, 198, 216, 0.2);
  font-size: 0.9rem;
  line-height: 1.6;
}

.page-privacy__brief-list li:last-child {
  border-bottom: none;
}

.page-privacy__brief-list span {
  color: var(--mist);
}

.page-privacy__brief-list em {
  flex-shrink: 0;
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--aqua);
}

.page-privacy__brief-note {
  position: relative;
  z-index: 1;
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.8;
  color: var(--mist);
}

/* 权利卡片 */
.page-privacy__rights {
  display: grid;
  gap: 0.9rem;
  margin: 0;
}

.page-privacy__right {
  padding: 1.05rem 1.15rem 1.1rem;
  border-radius: var(--radius-a);
  background: var(--sand);
  border: 1px solid var(--pp-hair);
}

.page-privacy__right h3 {
  margin: 0 0 0.45rem;
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--navy);
}

.page-privacy__right p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.78;
  color: var(--pp-ink);
}

/* 尾部引导 */
.page-privacy__tail {
  max-width: 44rem;
  margin-top: 1rem;
  padding: 1.6rem 1.25rem;
  border-radius: var(--radius-b);
  background: rgba(0, 180, 216, 0.09);
  border: 1px solid var(--pp-water-soft);
}

.page-privacy__tail-text {
  margin: 0 0 1.1rem;
  font-size: 0.9688rem;
  line-height: 1.8;
  color: var(--navy);
}

.page-privacy__tail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.page-privacy__cta,
.page-privacy__ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.68rem 1.3rem;
  border-radius: 999px;
  font-size: 0.9rem;
  letter-spacing: 0.03em;
  text-decoration: none;
  transition: background-color 0.2s var(--ease-out, ease), color 0.2s var(--ease-out, ease), border-color 0.2s var(--ease-out, ease);
}

.page-privacy__cta {
  background: var(--coral);
  color: var(--ivory);
  border: 1px solid var(--coral);
}

.page-privacy__cta:hover,
.page-privacy__cta:focus-visible {
  background: #e85a24;
  border-color: #e85a24;
}

.page-privacy__ghost {
  background: transparent;
  color: var(--navy);
  border: 1px solid rgba(11, 29, 58, 0.25);
}

.page-privacy__ghost:hover,
.page-privacy__ghost:focus-visible {
  border-color: var(--water);
  color: var(--water);
}

/* 底部波纹收尾 */
.page-privacy__ripple {
  height: 84px;
  margin-top: 3rem;
  border-radius: 0 0 var(--radius-c) var(--radius-c);
  background-image: repeating-linear-gradient(
    90deg,
    rgba(0, 180, 216, 0.3) 0 1px,
    transparent 1px 20px
  );
  -webkit-mask-image: linear-gradient(180deg, transparent, #000 55%, #000);
  mask-image: linear-gradient(180deg, transparent, #000 55%, #000);
  pointer-events: none;
}

/* 键盘焦点 */
.page-privacy a:focus-visible {
  outline: 2px solid var(--water);
  outline-offset: 2px;
  border-radius: 4px;
}

/* 平板 */
@media (min-width: 640px) {
  .page-privacy {
    padding: 3.5rem 0 6rem;
  }

  .page-privacy__head {
    margin-bottom: 2.75rem;
  }

  .page-privacy__toc {
    padding: 1.75rem 1.75rem 1.5rem;
  }

  .page-privacy__toc-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.3rem 1rem;
  }

  .page-privacy__section {
    margin-bottom: 3.5rem;
  }

  .page-privacy__brief {
    padding: 2.5rem 2.25rem 2.25rem;
  }

  .page-privacy__rights {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
  }

  .page-privacy__tail {
    padding: 2rem 1.75rem;
  }
}

/* 桌面：窄刻度栏 + 长文单栏 */
@media (min-width: 900px) {
  .page-privacy {
    padding: 4rem 0 7rem;
  }

  .page-privacy__body {
    grid-template-columns: 3.5rem minmax(0, 1fr);
    gap: 0 3rem;
    align-items: start;
  }

  .page-privacy__rail {
    display: block;
    position: sticky;
    top: calc(var(--pp-track) + 3.5rem);
    align-self: start;
    justify-self: center;
    width: 2px;
    height: 18rem;
    border-radius: 999px;
    background: linear-gradient(180deg, var(--water) 0%, rgba(0, 180, 216, 0.12) 62%, transparent 100%);
  }

  .page-privacy__rail::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    background: var(--aqua);
    box-shadow: 0 0 14px rgba(0, 245, 212, 0.85);
  }

  .page-privacy__rail::after {
    content: "";
    position: absolute;
    left: -5px;
    top: 0;
    bottom: 0;
    width: 12px;
    background: repeating-linear-gradient(
      180deg,
      rgba(11, 29, 58, 0.22) 0 1px,
      transparent 1px 36px
    );
    -webkit-mask-image: linear-gradient(180deg, #000, transparent 88%);
    mask-image: linear-gradient(180deg, #000, transparent 88%);
  }

  .page-privacy__prose p {
    font-size: 1.0313rem;
  }

  .page-privacy__def dd,
  .page-privacy__bullets li,
  .page-privacy__use p {
    font-size: 0.9688rem;
  }

  .page-privacy__toc-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* 宽屏 */
@media (min-width: 1200px) {
  .page-privacy__body {
    grid-template-columns: 4rem minmax(0, 44rem);
    gap: 0 3.5rem;
  }

  .page-privacy__brief {
    padding: 3rem 2.75rem 2.6rem;
  }
}

/* 动效降级 */
@media (prefers-reduced-motion: reduce) {
  .page-privacy * {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

/* 打印：保留条款层级 */
@media print {
  .page-privacy {
    padding: 0;
    background: #fff;
    color: #000;
  }

  .page-privacy__rail,
  .page-privacy__ripple,
  .page-privacy__tail-actions {
    display: none !important;
  }

  .page-privacy__banner {
    display: none;
  }

  .page-privacy__brief {
    background: #fff;
    border: 1px solid #000;
    color: #000;
  }

  .page-privacy__brief-title,
  .page-privacy__brief-list em,
  .page-privacy__brief-label,
  .page-privacy__brief-list span,
  .page-privacy__brief-note {
    color: #000;
  }

  .page-privacy__section {
    break-inside: avoid;
    page-break-inside: avoid;
  }

  .page-privacy__toc-link {
    color: #000;
  }
}