.page-privacy {
  background-color: var(--ink-900);
  color: var(--mist);
  font-family: var(--font-body);
}

/* ---------- 首屏 ---------- */
.page-privacy .pv-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  padding: clamp(44px, 7vw, 96px) 0 clamp(34px, 5vw, 60px);
}

.page-privacy .pv-hero-art {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.3;
}

.page-privacy .pv-hero-art img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  max-width: 100%;
}

.page-privacy .pv-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(120% 90% at 10% 0%, rgba(53, 240, 208, 0.14), transparent 62%),
    linear-gradient(180deg, rgba(6, 18, 31, 0.6) 0%, rgba(6, 18, 31, 0.93) 76%, var(--ink-900) 100%);
}

.page-privacy .pv-hero-inner {
  position: relative;
  z-index: 2;
}

.page-privacy .pv-kicker {
  margin: 0 0 18px;
  color: var(--cyan);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.page-privacy h1 {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(40px, 7.4vw, 88px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--mist);
}

.page-privacy .pv-lede {
  max-width: 60ch;
  margin: 0;
  color: var(--mist);
  opacity: 0.88;
  font-size: 16px;
  line-height: 1.75;
}

.page-privacy .pv-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
}

.page-privacy .pv-meta li {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--stone);
  border-left: 1px solid var(--line);
  padding-left: 12px;
}

/* ---------- 正文骨架 ---------- */
.page-privacy .pv-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 40px);
  padding-top: clamp(34px, 5vw, 60px);
  padding-bottom: clamp(56px, 8vw, 100px);
}

.page-privacy .pv-index {
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

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

.page-privacy .pv-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
}

.page-privacy .pv-index-link {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding: 9px 10px 9px 0;
  border-top: 1px solid var(--line);
  color: var(--stone);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-privacy .pv-index-link:hover,
.page-privacy .pv-index-link:focus-visible {
  color: var(--mist);
  background-color: rgba(53, 240, 208, 0.08);
}

.page-privacy .pv-idx-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-privacy .pv-doc {
  max-width: 68ch;
}

/* ---------- 章节 ---------- */
.page-privacy .pv-sec {
  padding: clamp(26px, 3.6vw, 42px) 0;
  border-top: 1px solid var(--line);
  scroll-margin-top: calc(var(--header-h) + 24px);
}

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

.page-privacy .pv-sec-title {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(21px, 2.6vw, 30px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-privacy .pv-sec-title .index-num {
  flex: none;
  font-size: 13px;
  letter-spacing: 0.12em;
}

.page-privacy .pv-doc p {
  margin: 0 0 14px;
  max-width: 68ch;
  font-size: 16px;
  line-height: 1.75;
}

.page-privacy .pv-doc p:last-child {
  margin-bottom: 0;
}

.page-privacy .pv-doc a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 208, 0.45);
}

.page-privacy .pv-doc a:hover,
.page-privacy .pv-doc a:focus-visible {
  border-bottom-color: var(--cyan);
}

.page-privacy .pv-list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-privacy .pv-list li {
  border-left: 1px solid var(--line);
  padding-left: 16px;
  font-size: 16px;
  line-height: 1.75;
  color: var(--mist);
  opacity: 0.9;
}

.page-privacy .pv-list strong {
  color: var(--mist);
  font-weight: 800;
  opacity: 1;
}

/* ---------- 关键定义注释 ---------- */
.page-privacy .pv-term {
  position: relative;
  border-bottom: 1px dashed var(--moss);
  cursor: help;
  outline-offset: 3px;
}

.page-privacy .pv-term::after {
  content: attr(data-note);
  position: absolute;
  left: 0;
  bottom: calc(100% + 10px);
  width: max-content;
  max-width: min(260px, 72vw);
  padding: 10px 12px;
  background-color: var(--ink-700);
  border: 1px solid var(--cyan);
  color: var(--mist);
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.5;
  opacity: 0;
  transform: translateY(6px);
  pointer-events: none;
  z-index: 6;
  transition: opacity 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-privacy .pv-term:hover::after,
.page-privacy .pv-term:focus-visible::after {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 折叠面板 ---------- */
.page-privacy .pv-fold {
  border: 1px solid var(--line);
  background-color: var(--ink-700);
  margin: 4px 0 18px;
}

.page-privacy .pv-fold > summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

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

.page-privacy .pv-fold > summary::after {
  content: "+";
  font-size: 15px;
  color: var(--stone);
}

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

.page-privacy .pv-fold-body {
  padding: 0 18px 16px;
  border-top: 1px solid var(--line);
}

.page-privacy .pv-fold-body p {
  margin: 14px 0 0;
  font-size: 15px;
  color: var(--mist);
  opacity: 0.86;
}

/* ---------- 浮动目录入口 ---------- */
.page-privacy .pv-totop {
  position: fixed;
  right: clamp(14px, 3vw, 32px);
  bottom: clamp(14px, 3vw, 28px);
  z-index: 30;
  display: inline-block;
  padding: 10px 14px;
  background-color: var(--cyan);
  border: 1px solid var(--cyan);
  color: var(--ink-900);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-decoration: none;
  transition: transform 0.2s var(--ease), background-color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-privacy .pv-totop:hover,
.page-privacy .pv-totop:focus-visible {
  background-color: var(--amber);
  border-color: var(--amber);
  transform: translateY(-2px);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 900px) {
  .page-privacy .pv-body {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: clamp(36px, 5vw, 76px);
  }

  .page-privacy .pv-index {
    position: sticky;
    top: calc(var(--header-h) + 28px);
    align-self: start;
    max-height: calc(100vh - var(--header-h) - 56px);
    overflow-y: auto;
  }
}

@media (min-width: 1200px) {
  .page-privacy .pv-body {
    grid-template-columns: 268px minmax(0, 1fr);
  }
}

@media (max-width: 560px) {
  .page-privacy .pv-totop {
    right: 12px;
    bottom: 12px;
    padding: 9px 12px;
    font-size: 11px;
    letter-spacing: 0.06em;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .pv-index-link,
  .page-privacy .pv-totop,
  .page-privacy .pv-term::after {
    transition: none;
  }

  .page-privacy .pv-totop:hover,
  .page-privacy .pv-totop:focus-visible {
    transform: none;
  }
}