.page-privacy {
  --privacy-index-w: 226px;
}

.page-privacy .privacy-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
}

.page-privacy .privacy-hero::before {
  content: "";
  position: absolute;
  inset: -14% -8% auto -8%;
  height: min(560px, 74vh);
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(38% 58% at 20% 28%, rgba(122, 92, 255, 0.28), transparent 70%),
    radial-gradient(34% 50% at 84% 8%, rgba(43, 230, 246, 0.15), transparent 72%),
    radial-gradient(44% 46% at 62% 80%, rgba(59, 36, 150, 0.34), transparent 76%);
}

.page-privacy .privacy-hero .breadcrumb {
  margin-bottom: clamp(18px, 3vw, 30px);
}

.page-privacy .privacy-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 52px);
  align-items: center;
}

.page-privacy .privacy-hero__copy h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(33px, 5.6vw, 58px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--text);
  max-width: 15em;
}

.page-privacy .privacy-hero__copy .lede {
  margin: 18px 0 0;
  max-width: 54ch;
  font-size: 17px;
  line-height: 1.8;
  color: var(--muted);
}

.page-privacy .privacy-hero__tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 22px 0 0;
  padding: 0;
}

.page-privacy .privacy-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.page-privacy .privacy-hero__media {
  margin: 0;
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

/* ---------- 长文布局 ---------- */

.page-privacy .privacy-body {
  padding-top: clamp(34px, 6vw, 62px);
}

.page-privacy .privacy-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 4vw, 54px);
  align-items: start;
}

.page-privacy .privacy-layout > * {
  min-width: 0;
}

.page-privacy .privacy-index__title {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-privacy .privacy-index__list {
  list-style: none;
  margin: 0;
  padding: 4px 0 4px 20px;
  border-left: 1px solid var(--line);
  display: grid;
  gap: 6px;
}

.page-privacy .privacy-index__list a {
  display: block;
  padding: 5px 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  transition: color 0.25s var(--ease);
}

.page-privacy .privacy-index__list .mono {
  margin-right: 8px;
  font-size: 12px;
  color: var(--violet);
}

.page-privacy .privacy-index__list a:hover,
.page-privacy .privacy-index__list a:focus-visible {
  color: var(--cyan);
}

@media (max-width: 959px) {
  .page-privacy .privacy-index__list {
    display: flex;
    gap: 8px;
    padding: 14px 0 0;
    border-left: 0;
    border-top: 1px solid var(--line);
    overflow-x: auto;
    scrollbar-width: thin;
  }

  .page-privacy .privacy-index__list li {
    flex: none;
  }

  .page-privacy .privacy-index__list a {
    display: inline-flex;
    align-items: center;
    white-space: nowrap;
    padding: 6px 13px;
    border: 1px solid var(--glass-line);
    border-radius: 999px;
    background: var(--glass);
  }
}

@media (min-width: 960px) {
  .page-privacy .privacy-layout {
    grid-template-columns: var(--privacy-index-w) minmax(0, 1fr);
  }

  .page-privacy .privacy-index {
    position: sticky;
    top: 104px;
  }

  .page-privacy .privacy-index__list li {
    position: relative;
  }

  .page-privacy .privacy-index__list li::before {
    content: "";
    position: absolute;
    left: -22px;
    top: 50%;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    transform: translateY(-50%);
    background: var(--line);
    transition: background 0.25s var(--ease), box-shadow 0.25s var(--ease);
  }

  .page-privacy .privacy-index__list li:hover::before,
  .page-privacy .privacy-index__list li:focus-within::before {
    background: var(--cyan);
    box-shadow: 0 0 10px rgba(43, 230, 246, 0.85);
  }
}

/* ---------- 正文分节 ---------- */

.page-privacy .privacy-doc {
  display: grid;
  gap: clamp(38px, 5.5vw, 66px);
}

.page-privacy .doc-block {
  padding-top: clamp(10px, 2vw, 18px);
  border-top: 1px solid var(--line);
  scroll-margin-top: 112px;
}

.page-privacy .doc-block__title {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(22px, 2.6vw, 30px);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-privacy .doc-block__num {
  flex: none;
  padding: 3px 7px;
  border: 1px solid var(--glass-line);
  border-radius: 8px;
  background: var(--glass);
  color: var(--violet);
  font-size: 12.5px;
  letter-spacing: 0.08em;
}

.page-privacy .doc-block > p {
  margin: 0 0 14px;
  max-width: 70ch;
  font-size: 17px;
  line-height: 1.85;
  color: var(--text);
}

.page-privacy .hl {
  font-weight: 600;
  color: var(--text);
  background-image: linear-gradient(180deg, transparent 66%, rgba(255, 196, 107, 0.42) 66%);
  background-repeat: no-repeat;
  background-size: 100% 1em;
}

/* ---------- 信息卡片 ---------- */

.page-privacy .info-cards {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-privacy .info-card {
  position: relative;
  overflow: hidden;
  padding: 18px 18px 20px 22px;
  border: 1px solid var(--glass-line);
  border-radius: var(--radius-sm);
  background: linear-gradient(165deg, rgba(122, 140, 255, 0.1), rgba(19, 26, 58, 0.92));
  box-shadow: var(--shadow-soft);
}

.page-privacy .info-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 14%;
  width: 3px;
  height: 72%;
  border-radius: 0 3px 3px 0;
  background: linear-gradient(180deg, var(--violet), var(--cyan));
  opacity: 0.75;
}

.page-privacy .info-card h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
}

.page-privacy .info-card p {
  margin: 0;
  max-width: 46ch;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 用途清单 ---------- */

.page-privacy .use-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-privacy .use-item {
  display: grid;
  gap: 4px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-privacy .use-item__k {
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-privacy .use-item__v {
  margin: 0;
  max-width: 68ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
}

/* ---------- 面板与列表 ---------- */

.page-privacy .note-panel {
  margin-top: 22px;
  padding: 20px 22px;
  border-radius: var(--radius-sm);
}

.page-privacy .note-panel--gold {
  border-color: rgba(255, 196, 107, 0.36);
}

.page-privacy .note-panel p {
  margin: 0;
  max-width: 70ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--text);
}

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

.page-privacy .check-list li {
  position: relative;
  padding-left: 20px;
  max-width: 68ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
}

.page-privacy .check-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.72em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--violet);
  box-shadow: 0 0 9px rgba(122, 92, 255, 0.9);
}

.page-privacy .check-list strong {
  font-weight: 600;
  color: var(--cyan);
}

.page-privacy .check-list--plain li::before {
  background: var(--gold);
  box-shadow: 0 0 9px rgba(255, 196, 107, 0.75);
}

.page-privacy .rights-list {
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-privacy .rights-row {
  display: grid;
  gap: 6px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: linear-gradient(160deg, rgba(19, 26, 58, 0.94), rgba(13, 19, 48, 0.86));
}

.page-privacy .rights-row__key {
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-privacy .rights-row__val {
  max-width: 66ch;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
}

/* ---------- 展开说明 ---------- */

.page-privacy .privacy-details {
  margin-top: 16px;
  border: 1px solid var(--glass-line);
  border-radius: var(--radius-sm);
  background: var(--glass);
  overflow: hidden;
}

.page-privacy .privacy-details summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 20px;
  cursor: pointer;
  list-style: none;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--text);
}

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

.page-privacy .privacy-details summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 18px;
  line-height: 1;
  color: var(--cyan);
}

.page-privacy .privacy-details[open] summary::after {
  content: "−";
}

.page-privacy .privacy-details p {
  margin: 0;
  padding: 0 20px 18px;
  max-width: 70ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 响应式栅格 ---------- */

@media (min-width: 640px) {
  .page-privacy .info-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-privacy .use-item {
    grid-template-columns: 172px minmax(0, 1fr);
    gap: 4px 22px;
    align-items: baseline;
  }

  .page-privacy .rights-row {
    grid-template-columns: 186px minmax(0, 1fr);
    gap: 4px 24px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-privacy .privacy-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }
}

@media (min-width: 1180px) {
  .page-privacy .info-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 滚动时标题渐亮 ---------- */

@keyframes privacy-lit {
  from {
    color: rgba(163, 174, 218, 0.55);
  }
  to {
    color: var(--text);
  }
}

@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .page-privacy .doc-block__title {
      animation: privacy-lit linear both;
      animation-timeline: view();
      animation-range: entry 15% cover 44%;
    }
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-index__list a,
  .page-privacy .info-card,
  .page-privacy .privacy-details summary {
    transition: none;
  }
}