.page-privacy {
  background: var(--ink-900);
  color: var(--mist);
  padding-bottom: clamp(3rem, 8vw, 5.5rem);
  overflow-x: hidden;
}

.page-privacy .breadcrumb {
  padding-top: clamp(1rem, 3vw, 1.6rem);
}

/* ---------- 首屏 ---------- */
.page-privacy .privacy-hero {
  position: relative;
  padding: clamp(1.1rem, 4vw, 2.4rem) 0 clamp(1.8rem, 5vw, 3.2rem);
  isolation: isolate;
}

.page-privacy .privacy-hero::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -18%;
  width: min(760px, 96vw);
  aspect-ratio: 1 / 1;
  background:
    radial-gradient(circle at 50% 50%, var(--violet-dim), transparent 62%),
    radial-gradient(circle at 34% 62%, var(--neon-dim), transparent 58%);
  pointer-events: none;
  z-index: -1;
}

.page-privacy .privacy-hero__inner {
  display: grid;
  gap: clamp(1.6rem, 4vw, 3rem);
  align-items: center;
}

.page-privacy .privacy-kicker {
  margin: 0 0 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--neon);
}

.page-privacy .privacy-title {
  margin: 0 0 1rem;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2rem, 7vw, 3.6rem);
  line-height: 1.16;
  letter-spacing: 0.02em;
  color: var(--paper);
  text-shadow: 0 0 26px rgba(34, 224, 214, 0.18);
}

.page-privacy .privacy-lead {
  margin: 0;
  max-width: 34em;
  font-size: clamp(0.98rem, 2.2vw, 1.08rem);
  line-height: 1.8;
  color: var(--mist);
}

.page-privacy .privacy-quick {
  list-style: none;
  margin: 1.6rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.page-privacy .privacy-quick li {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.95rem 0.45rem 0.6rem;
  border: 1px solid var(--line);
  border-radius: var(--pill);
  background: rgba(20, 28, 51, 0.55);
  font-size: 0.8rem;
  line-height: 1.4;
  color: var(--mist);
}

.page-privacy .privacy-quick__num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--amber);
  letter-spacing: 0.06em;
}

.page-privacy .privacy-hero__media {
  position: relative;
  margin: 0;
  border-radius: var(--r-xl);
  overflow: hidden;
  border: 1px solid var(--line-strong);
  aspect-ratio: 4 / 3;
  box-shadow: 0 30px 70px rgba(5, 7, 14, 0.65);
}

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

/* ---------- 正文布局 ---------- */
.page-privacy .privacy-body {
  padding-top: clamp(1.5rem, 4vw, 2.6rem);
}

.page-privacy .privacy-layout {
  display: grid;
  gap: clamp(1.4rem, 4vw, 2rem);
  align-items: start;
}

.page-privacy .privacy-index__title {
  margin: 0 0 0.8rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--neon);
  text-transform: uppercase;
}

.page-privacy .index-list {
  display: flex;
  gap: 0.5rem;
  overflow-x: auto;
  padding-bottom: 0.6rem;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-privacy .index-link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.5rem 0.85rem;
  border-radius: var(--pill);
  border: 1px solid var(--line);
  color: var(--mist);
  font-size: 0.82rem;
  line-height: 1.4;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.page-privacy .index-link .index-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--amber);
  letter-spacing: 0.06em;
}

.page-privacy .index-link:hover,
.page-privacy .index-link:focus-visible {
  color: var(--neon);
  border-color: var(--line-strong);
  background: var(--neon-dim);
  outline: none;
}

.page-privacy .index-link[aria-current="true"],
.page-privacy .index-link[aria-current="page"],
.page-privacy .index-link.is-active {
  color: var(--neon);
  border-color: var(--line-strong);
  background: var(--neon-dim);
}

.page-privacy .privacy-index__foot {
  margin: 1rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1.8;
  letter-spacing: 0.02em;
  color: rgba(184, 194, 217, 0.7);
  display: none;
}

/* ---------- 纸感正文 ---------- */
.page-privacy .privacy-article {
  background: var(--paper);
  color: var(--paper-ink);
  border-radius: var(--r-xl);
  padding: clamp(1.3rem, 4.5vw, 3rem);
  box-shadow: 0 28px 70px rgba(5, 7, 14, 0.55);
}

.page-privacy .privacy-chapter {
  border-top: 1px solid rgba(12, 18, 32, 0.14);
  padding-top: clamp(1.2rem, 3vw, 1.7rem);
  margin-top: clamp(1.2rem, 3vw, 1.7rem);
}

.page-privacy .privacy-chapter:first-of-type {
  border-top: 0;
  margin-top: 0;
  padding-top: 0;
}

.page-privacy .privacy-chapter__summary {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  cursor: pointer;
  list-style: none;
  padding: 0.2rem 0;
}

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

.page-privacy .privacy-chapter__summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 1;
  color: rgba(12, 18, 32, 0.42);
  transition: color 0.25s var(--ease), transform 0.25s var(--ease);
}

.page-privacy .privacy-chapter[open] > .privacy-chapter__summary::after {
  content: "−";
  color: var(--amber);
}

.page-privacy .privacy-chapter__summary:hover::after,
.page-privacy .privacy-chapter__summary:focus-visible::after {
  color: var(--amber);
}

.page-privacy .privacy-chapter__summary:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 4px;
  border-radius: var(--r-sm);
}

.page-privacy .privacy-num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--amber);
  flex: 0 0 auto;
}

.page-privacy .privacy-chapter__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.08rem, 3.4vw, 1.45rem);
  line-height: 1.4;
  letter-spacing: 0.015em;
  color: var(--paper-ink);
}

.page-privacy .privacy-chapter__body {
  max-width: 36rem;
  margin-top: 1rem;
  font-size: 0.95rem;
  line-height: 1.85;
  color: rgba(12, 18, 32, 0.86);
}

.page-privacy .privacy-chapter__body p {
  margin: 0 0 1rem;
}

.page-privacy .privacy-chapter__body h3 {
  margin: 1.5rem 0 0.6rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.98rem;
  letter-spacing: 0.02em;
  color: var(--paper-ink);
}

.page-privacy .privacy-chapter__body ul,
.page-privacy .privacy-chapter__body ol {
  margin: 0 0 1rem;
  padding-left: 1.1rem;
}

.page-privacy .privacy-chapter__body li {
  margin-bottom: 0.55rem;
}

.page-privacy .privacy-chapter__body strong {
  color: var(--paper-ink);
  font-weight: 700;
}

.page-privacy .term {
  border-bottom: 2px solid var(--amber);
  padding-bottom: 0.04em;
}

.page-privacy .privacy-chapter__body a {
  position: relative;
  color: var(--paper-ink);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(12, 18, 32, 0.4);
  padding-bottom: 0.05em;
}

.page-privacy .privacy-chapter__body a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--neon), var(--violet));
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.32s var(--ease);
}

.page-privacy .privacy-chapter__body a:hover::after,
.page-privacy .privacy-chapter__body a:focus-visible::after {
  transform: scaleX(1);
}

.page-privacy .privacy-chapter__body a:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 3px;
}

/* 四类用途：纸上的深色小块 */
.page-privacy .privacy-points {
  list-style: none;
  padding: 0;
  margin: 1.2rem 0 0;
  display: grid;
  gap: 0.85rem;
}

.page-privacy .privacy-points > li {
  background: rgba(12, 18, 32, 0.05);
  border-left: 3px solid var(--violet);
  border-radius: var(--r-md);
  padding: 0.95rem 1.05rem;
}

.page-privacy .privacy-points h3 {
  margin: 0 0 0.35rem;
  font-size: 0.95rem;
}

.page-privacy .privacy-points p {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.8;
}

.page-privacy .privacy-note {
  margin: 1rem 0 0;
  padding: 0.75rem 0 0.75rem 0.9rem;
  border-left: 3px solid var(--amber);
  font-size: 0.88rem;
  line-height: 1.8;
  color: rgba(12, 18, 32, 0.72);
}

.page-privacy .privacy-callout {
  margin: 1.3rem 0 0;
  padding: 1.1rem 1.2rem;
  background: var(--ink-800);
  border-radius: var(--r-md);
  border-left: 3px solid var(--neon);
}

.page-privacy .privacy-callout p {
  margin: 0;
  color: var(--mist);
  font-size: 0.9rem;
  line-height: 1.85;
}

.page-privacy .privacy-steps {
  list-style: none;
  padding: 0;
  margin: 0.9rem 0 1rem;
  display: grid;
  gap: 0.5rem;
}

.page-privacy .privacy-steps li {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  margin: 0;
  font-size: 0.92rem;
}

.page-privacy .privacy-steps__n {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.06em;
  color: var(--amber);
  border: 1px solid rgba(255, 154, 60, 0.5);
  border-radius: var(--pill);
  padding: 0.08rem 0.45rem;
  flex: 0 0 auto;
}

/* ---------- 宽屏 ---------- */
@media (min-width: 720px) {
  .page-privacy .privacy-points {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-privacy .privacy-hero__inner {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, 0.96fr);
  }

  .page-privacy .privacy-hero__media {
    aspect-ratio: 3 / 4;
  }
}

@media (min-width: 1024px) {
  .page-privacy .privacy-layout {
    grid-template-columns: 248px minmax(0, 1fr);
    gap: clamp(1.8rem, 4vw, 3.4rem);
  }

  .page-privacy .privacy-index {
    position: sticky;
    top: 6.5rem;
  }

  .page-privacy .index-list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
    gap: 0.25rem;
  }

  .page-privacy .index-link {
    border-radius: var(--r-sm);
    border-color: transparent;
    border-left: 2px solid transparent;
    white-space: normal;
    width: 100%;
  }

  .page-privacy .index-link:hover,
  .page-privacy .index-link:focus-visible,
  .page-privacy .index-link[aria-current="true"],
  .page-privacy .index-link[aria-current="page"],
  .page-privacy .index-link.is-active {
    border-color: transparent;
    border-left-color: var(--neon);
  }

  .page-privacy .privacy-index__foot {
    display: block;
  }
}

@media (min-width: 1180px) {
  .page-privacy .privacy-chapter__body {
    max-width: 38rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .index-link,
  .page-privacy .privacy-chapter__summary::after,
  .page-privacy .privacy-chapter__body a::after {
    transition: none;
  }
}