.page-privacy {
  --privacy-gap: clamp(1rem, 3vw, 2rem);
  --privacy-section-pad: clamp(3rem, 6vw, 5rem);
  --privacy-card-bg: linear-gradient(165deg, rgba(255,255,255,0.07), rgba(255,255,255,0.02));
  --privacy-card-border: 1px solid rgba(192,200,208,0.18);
  --privacy-accent-soft: rgba(255,106,0,0.12);
  background:
    radial-gradient(60rem 30rem at 88% -5%, rgba(0,212,255,0.14), transparent 70%),
    radial-gradient(40rem 28rem at 0% 108%, rgba(255,106,0,0.08), transparent 70%),
    var(--color-dark);
  color: var(--color-white);
  font-family: var(--font-body);
  line-height: 1.7;
  letter-spacing: 0.01em;
}

.page-privacy .btn--ghost {
  color: var(--color-mist);
}

.page-privacy .btn--ghost:hover,
.page-privacy .btn--ghost:focus-visible {
  color: var(--color-white);
  border-color: var(--color-silver);
  background: rgba(192,200,208,0.1);
}

/* ===== Hero ===== */
.privacy-hero {
  position: relative;
  padding-top: clamp(1.75rem, 4vw, 3rem);
  overflow: hidden;
}

.privacy-hero::after {
  content: "";
  position: absolute;
  inset: auto -4rem -5rem auto;
  width: 18rem;
  height: 18rem;
  border: 1px solid rgba(0,212,255,0.18);
  border-radius: 50%;
  pointer-events: none;
}

.privacy-hero .breadcrumb {
  margin-bottom: 2rem;
}

.privacy-hero__grid {
  display: grid;
  gap: 2.25rem;
  align-items: start;
}

.privacy-hero__text {
  position: relative;
  z-index: 1;
  max-width: 46rem;
}

.privacy-hero__title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: var(--fs-3xl);
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0.5rem 0 0.25rem;
  color: var(--color-white);
}

.privacy-hero__subtitle {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--fs-lg);
  color: var(--color-cyan);
  margin: 0 0 1.25rem;
}

.privacy-hero__lead {
  color: var(--color-mist);
  font-size: var(--fs-md);
  line-height: 1.8;
  margin: 0 0 1.75rem;
  max-width: 38rem;
}

.privacy-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.privacy-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0 1.75rem;
  margin: 0;
  padding: 1.25rem 0 0;
  border-top: var(--border-hair);
}

.privacy-hero__meta-item {
  padding-right: 1.75rem;
  margin-right: 1.75rem;
  border-right: var(--border-hair);
}

.privacy-hero__meta-item:last-child {
  padding-right: 0;
  margin-right: 0;
  border-right: 0;
}

.privacy-hero__meta dt {
  font-size: var(--fs-xs);
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 0.08em;
  margin-bottom: 0.25rem;
}

.privacy-hero__meta dd {
  margin: 0;
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-white);
}

.privacy-hero__media {
  position: relative;
  margin: 0;
  border: var(--border-strong);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-primary);
  box-shadow: var(--shadow-lg);
}

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

.privacy-hero__media figcaption {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.875rem 1.25rem;
  font-size: var(--fs-xs);
  color: var(--color-mist);
  background: rgba(7,26,43,0.78);
  border-top: var(--border-hair);
}

.privacy-hero__media figcaption::before {
  content: "";
  flex: none;
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--color-cyan);
  box-shadow: 0 0 0 4px rgba(0,212,255,0.18);
}

/* ===== 章节索引 ===== */
.privacy-toc {
  position: relative;
  z-index: 2;
  margin-top: 2.5rem;
  padding: 1.125rem 0;
  border-top: var(--border-hair);
  border-bottom: var(--border-hair);
  background: rgba(11,31,58,0.6);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.privacy-toc__inner {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  overflow-x: auto;
}

.privacy-toc__label {
  flex: none;
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  padding-right: 1.25rem;
  border-right: var(--border-hair);
}

.privacy-toc__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.privacy-toc__link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.5rem 1rem;
  font-size: var(--fs-sm);
  white-space: nowrap;
  color: var(--color-mist);
  border: var(--border-hair);
  border-radius: var(--radius-full);
  background: rgba(245,247,250,0.03);
  transition: color var(--trans-fast), border-color var(--trans-fast), background var(--trans-fast);
}

.privacy-toc__link span {
  color: var(--color-accent);
  font-weight: 700;
}

.privacy-toc__link:hover,
.privacy-toc__link:focus-visible {
  color: var(--color-white);
  border-color: rgba(0,212,255,0.55);
  background: rgba(0,212,255,0.1);
}

/* ===== 章节通用 ===== */
.privacy-section {
  padding: var(--privacy-section-pad) 0;
  scroll-margin-top: 5.5rem;
}

.privacy-section--alt {
  background: linear-gradient(180deg, rgba(0,212,255,0.04), transparent 70%);
  border-top: var(--border-hair);
  border-bottom: var(--border-hair);
}

.privacy-section__grid {
  display: grid;
  gap: 2rem;
}

.privacy-section__number {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: var(--fs-xl);
  line-height: 1;
  color: var(--color-accent);
  opacity: 0.85;
  margin-bottom: 0.5rem;
}

.privacy-section__body {
  min-width: 0;
}

.privacy-section__title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: var(--fs-2xl);
  letter-spacing: -0.02em;
  margin: 0 0 0.75rem;
  color: var(--color-white);
}

.privacy-section__intro {
  margin: 0;
  max-width: 42rem;
  color: var(--color-mist);
  font-size: var(--fs-md);
  line-height: 1.8;
}

/* ===== 卡片 ===== */
.privacy-card-grid {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

.privacy-card {
  padding: 1.25rem;
  background: var(--privacy-card-bg);
  border: var(--privacy-card-border);
  border-radius: var(--radius);
  transition: transform var(--trans-base), border-color var(--trans-base);
}

.privacy-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0,212,255,0.45);
}

.privacy-card__icon {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  margin-bottom: 1rem;
  border-radius: var(--radius-sm);
  background: var(--privacy-accent-soft);
  color: var(--color-accent);
}

.privacy-card__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--fs-md);
  margin: 0 0 0.5rem;
  color: var(--color-white);
}

.privacy-card__desc {
  margin: 0;
  color: var(--color-mist);
  font-size: var(--fs-sm);
  line-height: 1.7;
}

.privacy-note {
  margin: 1.5rem 0 0;
  padding: 0.875rem 1.125rem;
  border-left: 3px solid var(--color-cyan);
  background: rgba(0,212,255,0.07);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--color-mist);
  font-size: var(--fs-sm);
  line-height: 1.7;
}

.privacy-note--trust {
  border-left-color: var(--color-accent);
  background: var(--privacy-accent-soft);
  color: var(--color-white);
}

/* ===== 折叠 ===== */
.privacy-detail {
  margin-top: 1.75rem;
  border: var(--border-hair);
  border-radius: var(--radius);
  background: rgba(7,26,43,0.5);
}

.privacy-detail > summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--fs-sm);
  color: var(--color-white);
}

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

.privacy-detail > summary::before {
  content: "+";
  flex: none;
  display: grid;
  place-items: center;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-white);
  font-weight: 700;
  font-size: var(--fs-md);
  line-height: 1;
}

.privacy-detail[open] > summary::before {
  content: "−";
  background: var(--color-cyan);
  color: var(--color-primary);
}

.privacy-detail--body,
.privacy-detail__body {
  padding: 0 1.25rem 1.25rem calc(1.25rem + 2.25rem);
  color: var(--color-mist);
  font-size: var(--fs-sm);
  line-height: 1.75;
}

.privacy-detail__body p {
  margin: 0;
}

/* ===== 使用方式列表 ===== */
.privacy-use-list {
  display: grid;
  gap: 0.75rem;
  margin: 2rem 0 0;
  padding: 0;
  list-style: none;
}

.privacy-use-list__item {
  display: grid;
  grid-template-columns: 3rem minmax(0, 1fr);
  gap: 1rem;
  align-items: start;
  padding: 1.25rem;
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: var(--privacy-card-bg);
}

.privacy-use-list__num {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: var(--fs-lg);
  color: var(--color-accent);
  opacity: 0.8;
}

.privacy-use-list__item h3 {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--fs-md);
  margin: 0 0 0.375rem;
  color: var(--color-white);
}

.privacy-use-list__item p {
  margin: 0;
  color: var(--color-mist);
  font-size: var(--fs-sm);
  line-height: 1.75;
}

/* ===== 数据流转 ===== */
.privacy-flow {
  margin-top: 2.5rem;
  padding: 1.25rem;
  border: var(--border-hair);
  border-radius: var(--radius-lg);
  background: rgba(7,26,43,0.55);
}

.privacy-flow__bar {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  margin-bottom: 1rem;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--color-mist);
  text-transform: uppercase;
}

.privacy-flow__dot {
  width: 0.625rem;
  height: 0.625rem;
  border-radius: 50%;
  background: var(--color-cyan);
  box-shadow: 0 0 0 5px rgba(0,212,255,0.12);
}

.privacy-flow__svg {
  display: block;
  width: 100%;
  height: auto;
}

.privacy-flow__svg text {
  font-family: var(--font-body);
}

/* ===== 高亮框 ===== */
.privacy-highlight {
  margin-top: 2rem;
  padding: 1.5rem 1.75rem;
  border: 1px solid rgba(255,106,0,0.38);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius);
  background: linear-gradient(145deg, rgba(255,106,0,0.13), rgba(255,106,0,0.04));
}

.privacy-highlight__badge {
  display: inline-block;
  padding: 0.25em 0.875em;
  margin-bottom: 0.625rem;
  background: var(--color-accent);
  color: var(--color-white);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  border-radius: var(--radius-full);
}

.privacy-highlight p {
  margin: 0;
  color: var(--color-white);
  font-size: var(--fs-md);
  line-height: 1.75;
}

.privacy-highlight strong {
  color: var(--color-accent);
}

/* ===== 共享场景 ===== */
.privacy-scenario-grid {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

.privacy-scenario {
  position: relative;
  padding: 1.75rem 1.25rem 1.25rem;
  background: var(--privacy-card-bg);
  border: var(--privacy-card-border);
  border-radius: var(--radius);
  transition: border-color var(--trans-fast);
}

.privacy-scenario:hover {
  border-color: rgba(0,212,255,0.4);
}

.privacy-scenario__code {
  display: inline-block;
  padding: 0.25rem 0.625rem;
  border: 1px dashed rgba(0,212,255,0.32);
  border-radius: var(--radius-sm);
  background: rgba(0,212,255,0.08);
  color: var(--color-cyan);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--fs-xs);
  letter-spacing: 0.08em;
}

.privacy-scenario h3 {
  margin: 0.875rem 0 0.375rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--fs-md);
  color: var(--color-white);
}

.privacy-scenario p {
  margin: 0;
  color: var(--color-mist);
  font-size: var(--fs-sm);
  line-height: 1.7;
}

/* ===== 数据矩阵 ===== */
.privacy-matrix {
  display: grid;
  gap: 1rem;
  margin: 2rem 0 0;
  padding: 0;
}

.privacy-matrix__item {
  padding: 1.25rem;
  background: var(--privacy-card-bg);
  border: var(--privacy-card-border);
  border-radius: var(--radius);
  transition: border-color var(--trans-fast);
}

.privacy-matrix__item:hover {
  border-color: rgba(0,212,255,0.4);
}

.privacy-matrix__item dt {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  margin-bottom: 0.5rem;
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-accent);
}

.privacy-matrix__item dt::before {
  content: "";
  width: 0.375rem;
  height: 0.375rem;
  transform: rotate(45deg);
  background: currentColor;
}

.privacy-matrix__item dd {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--fs-lg);
  color: var(--color-white);
  line-height: 1.3;
}

.privacy-matrix__note {
  display: block;
  margin-top: 0.375rem;
  font-size: var(--fs-xs);
  color: var(--color-mist);
}

/* ===== 用户权利 ===== */
.privacy-rights-grid {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

.privacy-right {
  display: grid;
  gap: 0.5rem;
  padding: 1.5rem 1.25rem;
  background: var(--privacy-card-bg);
  border: var(--privacy-card-border);
  border-radius: var(--radius);
  transition: transform var(--trans-base), border-color var(--trans-base);
}

.privacy-right:hover {
  transform: translateY(-4px);
  border-color: rgba(255,106,0,0.45);
}

.privacy-right__num {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: var(--fs-sm);
  color: var(--color-accent);
  opacity: 0.75;
}

.privacy-right h3 {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--fs-md);
  color: var(--color-white);
}

.privacy-right p {
  margin: 0;
  color: var(--color-mist);
  font-size: var(--fs-sm);
  line-height: 1.7;
}

/* ===== 联系区块 ===== */
.privacy-contact {
  margin-top: 2.5rem;
  padding: 2rem;
  display: grid;
  gap: 1.5rem;
  border: var(--border-strong);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, var(--color-primary), var(--color-dark));
  box-shadow: var(--shadow-md);
}

.privacy-contact .eyebrow {
  margin-bottom: 0.5rem;
}

.privacy-contact__text h3 {
  margin: 0 0 0.5rem;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: var(--fs-xl);
  color: var(--color-white);
}

.privacy-contact__text p {
  margin: 0;
  max-width: 32rem;
  color: var(--color-mist);
  font-size: var(--fs-sm);
  line-height: 1.75;
}

.privacy-contact__meta {
  display: grid;
  margin: 0;
  gap: 0.25rem;
}

.privacy-contact__row {
  display: grid;
  grid-template-columns: minmax(5rem, 1fr) minmax(0, 2fr);
  gap: 0.75rem;
  align-items: baseline;
  padding: 0.625rem 0;
  border-bottom: var(--border-hair);
}

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

.privacy-contact__row dt {
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--color-accent);
}

.privacy-contact__row dd {
  margin: 0;
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-white);
  overflow-wrap: anywhere;
}

.privacy-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* ===== 桌面断点 ===== */
@media (min-width: 40rem) {
  .privacy-card-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .privacy-scenario-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .privacy-matrix {
    grid-template-columns: repeat(2, 1fr);
  }

  .privacy-rights-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .privacy-contact__actions {
    grid-column: 1 / -1;
  }
}

@media (min-width: 64rem) {
  .privacy-hero__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    gap: 3.5rem;
    align-items: center;
  }

  .privacy-section__grid {
    grid-template-columns: minmax(9rem, 1fr) minmax(0, 4fr);
    gap: var(--space-xl);
  }

  .privacy-section__number {
    position: sticky;
    top: 6.5rem;
    align-self: start;
    font-size: clamp(4.5rem, 8vw, 6.5rem);
    color: transparent;
    -webkit-text-stroke: 1px rgba(192,200,208,0.3);
    opacity: 1;
    margin: 0;
  }

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

  .privacy-matrix {
    grid-template-columns: repeat(3, 1fr);
  }

  .privacy-rights-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .privacy-contact {
    grid-template-columns: 1fr 1fr;
    padding: 2.5rem;
  }

  .privacy-toc__inner {
    gap: 2rem;
  }
}

@media (min-width: 72rem) {
  .privacy-card-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-card,
  .page-privacy .privacy-right,
  .page-privacy .privacy-toc__link {
    transition: none;
  }
}