.page-privacy {
  --policy-measure: 66ch;
  --policy-sticky: 6.5rem;
  color: var(--text);
  padding-block: clamp(1.1rem, 3.6vw, 2.2rem) clamp(3rem, 8vw, 5.5rem);
}

.page-privacy h1,
.page-privacy h2,
.page-privacy p,
.page-privacy ul,
.page-privacy ol,
.page-privacy figure {
  margin: 0;
}

.page-privacy :focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- 首屏 ---------- */
.page-privacy .policy-hero {
  position: relative;
  margin-top: clamp(1rem, 3vw, 1.8rem);
  padding: clamp(1.5rem, 5vw, 3.2rem);
  background:
    radial-gradient(120% 90% at 88% 6%, rgba(124, 92, 255, .16), transparent 62%),
    linear-gradient(158deg, var(--hull), var(--deep) 72%);
  border: 1px solid var(--grid);
  border-radius: var(--radius-a);
  overflow: hidden;
}

.page-privacy .policy-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(to right, rgba(36, 64, 106, .5) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(to bottom, rgba(36, 64, 106, .35) 0 1px, transparent 1px 64px);
  opacity: .5;
  pointer-events: none;
}

.page-privacy .policy-hero::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(180deg, var(--cyan), transparent 82%);
}

.page-privacy .policy-hero > * {
  position: relative;
  z-index: 1;
}

.page-privacy .policy-kicker {
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .16em;
  color: var(--cyan);
  text-transform: uppercase;
}

.page-privacy h1 {
  margin-top: .7rem;
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 5.6vw, 2.6rem);
  font-weight: 900;
  line-height: 1.28;
  letter-spacing: -.01em;
  max-width: 22ch;
}

.page-privacy .policy-lede {
  margin-top: 1rem;
  max-width: 58ch;
  font-size: clamp(.98rem, 2.4vw, 1.08rem);
  line-height: 1.85;
  color: var(--muted);
}

.page-privacy .policy-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .55rem;
  margin-top: 1.4rem;
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .04em;
  color: var(--muted-dim);
}

.page-privacy .policy-version {
  padding: .24rem .6rem;
  color: var(--cyan);
  border: 1px solid rgba(47, 240, 214, .35);
  border-radius: var(--radius-c);
}

.page-privacy .policy-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--amber);
}

.page-privacy .policy-figure {
  margin-top: clamp(1.4rem, 4vw, 2.4rem);
}

.page-privacy .policy-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border-radius: var(--radius-c);
  border: 1px solid var(--grid);
  background: var(--panel-2);
}

/* ---------- 两栏：索引 + 条款 ---------- */
.page-privacy .policy-layout {
  display: grid;
  gap: clamp(1.5rem, 4vw, 3rem);
  margin-top: clamp(2rem, 5vw, 3.2rem);
}

.page-privacy .policy-clauses {
  display: grid;
  gap: clamp(1.8rem, 5vw, 3rem);
  min-width: 0;
}

/* 索引 */
.page-privacy .policy-index {
  border: 1px solid var(--grid);
  border-radius: var(--radius-b);
  background: var(--panel-2);
  overflow: hidden;
}

.page-privacy .policy-index > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .8rem;
  padding: .9rem 1.1rem;
  font-family: var(--font-display);
  font-size: .95rem;
  font-weight: 700;
  color: var(--text);
  cursor: pointer;
  list-style: none;
}

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

.page-privacy .index-caret {
  position: relative;
  width: 14px;
  height: 14px;
  flex: none;
}

.page-privacy .index-caret::before,
.page-privacy .index-caret::after {
  content: "";
  position: absolute;
  background: var(--cyan);
  transition: transform 220ms var(--ease);
}

.page-privacy .index-caret::before {
  left: 0;
  top: 6px;
  width: 14px;
  height: 1.5px;
}

.page-privacy .index-caret::after {
  left: 6px;
  top: 0;
  width: 1.5px;
  height: 14px;
}

.page-privacy .policy-index[open] .index-caret::after {
  transform: scaleY(0);
}

.page-privacy .policy-index-list {
  counter-reset: policy-idx;
  list-style: none;
  padding: .2rem .7rem .8rem;
  display: grid;
  gap: .1rem;
}

.page-privacy .policy-index-list li {
  counter-increment: policy-idx;
}

.page-privacy .policy-index-list a {
  display: flex;
  align-items: baseline;
  gap: .55rem;
  padding: .55rem .7rem;
  font-size: .92rem;
  line-height: 1.5;
  color: var(--muted);
  text-decoration: none;
  border-left: 2px solid transparent;
  border-radius: var(--radius-c);
  transition: color 180ms var(--ease), background 180ms var(--ease), border-color 180ms var(--ease);
}

.page-privacy .policy-index-list a::before {
  content: counter(policy-idx, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .06em;
  color: var(--cyan);
  opacity: .8;
}

.page-privacy .policy-index-list a:hover,
.page-privacy .policy-index-list a:focus-visible {
  color: var(--text);
  background: rgba(47, 240, 214, .07);
  border-left-color: var(--cyan);
}

/* 条款 */
.page-privacy .clause {
  scroll-margin-top: 6rem;
  padding-top: clamp(1.2rem, 3.5vw, 1.9rem);
  border-top: 1px solid var(--grid);
}

.page-privacy .clause:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-privacy .clause-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: clamp(.7rem, 2.5vw, 1.2rem);
}

.page-privacy .clause-num {
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 4vw, 1.9rem);
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--cyan);
  line-height: 1;
}

.page-privacy .clause h2 {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 3.4vw, 1.55rem);
  font-weight: 800;
  line-height: 1.4;
  color: var(--text);
}

.page-privacy .clause-lead {
  margin-top: 1rem;
  max-width: var(--policy-measure);
  font-size: 1.03rem;
  font-weight: 700;
  line-height: 1.75;
  color: var(--text);
}

.page-privacy .clause p {
  margin-top: .85rem;
  max-width: var(--policy-measure);
  font-size: 1rem;
  line-height: 1.9;
  color: var(--muted);
}

.page-privacy .clause a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 240, 214, .38);
}

.page-privacy .clause a:hover {
  color: var(--text);
  border-bottom-color: var(--text);
}

.page-privacy .policy-list {
  list-style: none;
  margin-top: 1rem;
  padding: 0;
  display: grid;
  gap: .75rem;
  max-width: var(--policy-measure);
}

.page-privacy .policy-list li {
  position: relative;
  padding-left: 1.15rem;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--muted);
}

.page-privacy .policy-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .82em;
  width: 13px;
  height: 1px;
  background: var(--cyan);
}

.page-privacy .policy-list strong {
  color: var(--text);
  font-weight: 700;
}

/* 信息流向示意 */
.page-privacy .policy-flow {
  margin-top: clamp(1.3rem, 4vw, 2rem);
  padding: clamp(.9rem, 3vw, 1.4rem);
  background: var(--panel-2);
  border: 1px solid var(--grid);
  border-radius: var(--radius-a);
  overflow-x: auto;
}

.page-privacy .flow-svg {
  display: block;
  width: 100%;
  min-width: 520px;
  height: auto;
}

.page-privacy .flow-node rect {
  fill: var(--panel);
  stroke: var(--grid);
  stroke-width: 1;
}

.page-privacy .flow-svg text {
  font-family: var(--font-body);
}

.page-privacy .flow-t1 {
  fill: var(--text);
  font-size: 15px;
  font-weight: 700;
}

.page-privacy .flow-t2 {
  fill: var(--muted);
  font-size: 11px;
  letter-spacing: .04em;
}

.page-privacy .flow-line {
  stroke: var(--cyan);
  stroke-width: 1.5;
  fill: none;
}

.page-privacy .flow-head {
  fill: var(--cyan);
}

.page-privacy .policy-flow-cap {
  margin-top: .8rem;
  min-width: 520px;
  font-size: .8rem;
  line-height: 1.7;
  color: var(--muted-dim);
}

/* 末尾快捷入口 */
.page-privacy .policy-jump {
  margin-top: clamp(1rem, 3vw, 1.6rem);
  padding: clamp(1.1rem, 4vw, 1.7rem);
  background: linear-gradient(150deg, var(--panel), var(--deep) 88%);
  border: 1px solid var(--grid);
  border-radius: var(--radius-a);
}

.page-privacy .policy-jump-title {
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .14em;
  color: var(--cyan);
}

.page-privacy .policy-jump-list {
  list-style: none;
  padding: 0;
  margin-top: .9rem;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

.page-privacy .policy-jump-list a {
  display: inline-block;
  padding: .45rem .8rem;
  font-size: .86rem;
  line-height: 1.5;
  color: var(--muted);
  text-decoration: none;
  background: rgba(20, 36, 63, .7);
  border: 1px solid var(--grid);
  border-radius: var(--radius-c);
  transition: color 180ms var(--ease), border-color 180ms var(--ease), background 180ms var(--ease);
}

.page-privacy .policy-jump-list a:hover,
.page-privacy .policy-jump-list a:focus-visible {
  color: var(--text);
  background: rgba(15, 185, 166, .14);
  border-color: var(--cyan);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 960px) {
  .page-privacy .policy-layout {
    grid-template-columns: minmax(204px, 236px) minmax(0, 1fr);
    gap: clamp(2rem, 5vw, 3.6rem);
    align-items: start;
  }

  .page-privacy .policy-index {
    position: sticky;
    top: var(--policy-sticky);
  }

  .page-privacy .policy-index > summary {
    display: none;
  }

  .page-privacy .policy-index-list {
    padding: 1rem .75rem;
    gap: .2rem;
  }

  .page-privacy .policy-index::after {
    content: "v3.2";
    display: block;
    padding: 0 .95rem 1rem;
    font-family: var(--font-mono);
    font-size: .7rem;
    letter-spacing: .1em;
    color: var(--muted-dim);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .policy-index-list a,
  .page-privacy .policy-jump-list a,
  .page-privacy .index-caret::before,
  .page-privacy .index-caret::after {
    transition: none;
  }
}