.page-privacy {
  --pv-measure: 34em;
  --pv-rail: 196px;
  background: var(--night);
  color: var(--mist);
}

/* ---------- 首屏 ---------- */

.page-privacy .pv-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(44px, 8vw, 88px) 0 clamp(34px, 5vw, 56px);
  background:
    radial-gradient(120% 90% at 12% 0%, rgba(59, 44, 110, .40) 0%, rgba(5, 19, 24, 0) 58%),
    linear-gradient(180deg, var(--cabin) 0%, var(--night) 100%);
  border-bottom: 1px solid var(--line-faint);
}

.page-privacy .pv-hero__art {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.page-privacy .pv-hero__art img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 72% 50%;
  opacity: .32;
  mix-blend-mode: screen;
}

.page-privacy .pv-hero__art::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(5, 19, 24, .96) 0%, rgba(5, 19, 24, .80) 44%, rgba(11, 40, 49, .52) 100%);
}

.page-privacy .pv-hero__inner {
  position: relative;
  z-index: 1;
}

.page-privacy .pv-hero h1 {
  margin: 14px 0 0;
  max-width: 16em;
  font-size: clamp(30px, 6.4vw, 54px);
  line-height: 1.08;
  font-weight: 900;
  letter-spacing: -.02em;
  color: var(--mist);
}

.page-privacy .pv-hero .lead {
  margin: 22px 0 0;
  max-width: var(--pv-measure);
  font-size: 17px;
  line-height: 1.85;
  color: rgba(233, 245, 243, .84);
}

.page-privacy .pv-facts {
  margin: 36px 0 0;
  padding: 18px 20px;
  max-width: 540px;
  display: grid;
  grid-template-columns: minmax(72px, auto) minmax(0, 1fr);
  gap: 10px 18px;
  border: 1px solid var(--line);
  border-left: 2px solid var(--neon);
  background: rgba(11, 40, 49, .70);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
}

.page-privacy .pv-facts dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  line-height: 1.6;
  color: var(--slate);
}

.page-privacy .pv-facts dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--neon);
  overflow-wrap: anywhere;
}

/* ---------- 正文骨架 ---------- */

.page-privacy .pv-doc {
  padding: clamp(52px, 8vw, 96px) 0 clamp(48px, 7vw, 88px);
}

.page-privacy .pv-doc__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 38px;
}

/* 左侧章节刻度 */

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

.page-privacy .pv-index__title {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--slate);
}

.page-privacy .pv-index__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
}

.page-privacy .pv-index__list a {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  font-size: 15px;
  line-height: 1.5;
  color: var(--slate);
  text-decoration: none;
  transition: color .16s var(--ease);
}

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

.page-privacy .pv-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--neon);
}

/* ---------- 章节 ---------- */

.page-privacy .pv-chapter {
  scroll-margin-top: 96px;
  padding-top: 28px;
  border-top: 1px solid var(--line-soft);
  margin-bottom: 48px;
}

.page-privacy .pv-chapter:first-child {
  border-top-color: var(--line);
}

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

.page-privacy .pv-chapter__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 16px;
}

.page-privacy .pv-chapter__num {
  flex: none;
  padding: 3px 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--neon);
  background: rgba(37, 245, 194, .10);
  clip-path: polygon(0 0, calc(100% - 6px) 0, 100% 6px, 100% 100%, 6px 100%, 0 calc(100% - 6px));
}

.page-privacy .pv-chapter h2 {
  margin: 0;
  min-width: 0;
  font-size: clamp(20px, 3.6vw, 26px);
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--mist);
}

.page-privacy .pv-chapter__body > p {
  margin: 0 0 18px;
  max-width: var(--pv-measure);
  font-size: 17px;
  line-height: 1.85;
  color: rgba(233, 245, 243, .84);
}

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

.page-privacy .pv-chapter__body a {
  color: var(--neon);
  text-decoration: underline;
  text-decoration-color: rgba(37, 245, 194, .40);
  text-underline-offset: 3px;
}

.page-privacy .pv-chapter__body a:hover,
.page-privacy .pv-chapter__body a:focus-visible {
  text-decoration-color: var(--neon);
}

/* 条目列表 */

.page-privacy .pv-list {
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
  max-width: var(--pv-measure);
  display: grid;
  gap: 13px;
}

.page-privacy .pv-list li {
  position: relative;
  padding-left: 18px;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(233, 245, 243, .80);
}

.page-privacy .pv-list li::before {
  content: "";
  position: absolute;
  left: 1px;
  top: .74em;
  width: 7px;
  height: 7px;
  background: var(--neon);
  clip-path: polygon(50% 0, 100% 50%, 50% 100%, 0 50%);
}

.page-privacy .pv-key {
  display: inline-block;
  margin-right: 8px;
  padding: 1px 7px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .06em;
  color: var(--neon);
  background: rgba(37, 245, 194, .10);
  clip-path: polygon(0 0, calc(100% - 5px) 0, 100% 5px, 100% 100%, 5px 100%, 0 calc(100% - 5px));
}

/* 折叠步骤 */

.page-privacy .pv-steps {
  margin: 0 0 20px;
  max-width: var(--pv-measure);
}

.page-privacy .pv-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 13px 16px;
  font: inherit;
  font-size: 15px;
  font-weight: 600;
  text-align: left;
  color: var(--mist);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 0;
  cursor: pointer;
  transition: background .16s var(--ease), color .16s var(--ease);
}

.page-privacy .pv-toggle:hover,
.page-privacy .pv-toggle:focus-visible {
  background: rgba(37, 245, 194, .12);
  color: var(--neon);
}

.page-privacy .pv-toggle__mark {
  position: relative;
  flex: none;
  width: 12px;
  height: 12px;
}

.page-privacy .pv-toggle__mark::before,
.page-privacy .pv-toggle__mark::after {
  content: "";
  position: absolute;
  background: currentColor;
}

.page-privacy .pv-toggle__mark::before {
  left: 0;
  top: 5px;
  width: 12px;
  height: 1px;
}

.page-privacy .pv-toggle__mark::after {
  left: 5px;
  top: 0;
  width: 1px;
  height: 12px;
  transition: transform .18s var(--ease);
}

.page-privacy .pv-toggle[aria-expanded="true"] .pv-toggle__mark::after {
  transform: scaleY(0);
}

.page-privacy .pv-steps__panel {
  margin-top: 0;
  padding: 20px 18px;
  border: 1px solid var(--line-faint);
  border-top: none;
  background: rgba(11, 40, 49, .62);
}

.page-privacy .pv-steps__list {
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: pvstep;
  display: grid;
  gap: 11px;
}

.page-privacy .pv-steps__list li {
  position: relative;
  counter-increment: pvstep;
  padding-left: 34px;
  font-size: 15px;
  line-height: 1.75;
  color: rgba(233, 245, 243, .82);
}

.page-privacy .pv-steps__list li::before {
  content: counter(pvstep, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: .1em;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .04em;
  color: var(--neon);
}

.page-privacy .pv-steps__note {
  margin: 16px 0 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--slate);
}

/* 联系信息块 */

.page-privacy .pv-contact {
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
  max-width: var(--pv-measure);
  display: grid;
  border: 1px solid var(--line-faint);
  border-left: 2px solid var(--heat);
  background: rgba(18, 58, 68, .42);
}

.page-privacy .pv-contact li {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line-faint);
}

.page-privacy .pv-contact li:last-child {
  border-bottom: none;
}

.page-privacy .pv-contact__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--slate);
}

.page-privacy .pv-contact__value {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--mist);
  overflow-wrap: anywhere;
}

/* ---------- 尾部入口 ---------- */

.page-privacy .pv-tail {
  padding: clamp(40px, 6vw, 72px) 0 clamp(48px, 7vw, 88px);
  background: linear-gradient(180deg, var(--night) 0%, var(--cabin) 100%);
  border-top: 1px solid var(--line-faint);
}

.page-privacy .pv-tail__title {
  margin: 0 0 26px;
  font-size: clamp(19px, 2.6vw, 24px);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--mist);
}

.page-privacy .pv-tail__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 1px;
  background: var(--line-faint);
  border: 1px solid var(--line-faint);
}

.page-privacy .pv-tail__list a {
  display: grid;
  gap: 6px;
  padding: 18px;
  font-size: 16px;
  font-weight: 700;
  color: var(--mist);
  text-decoration: none;
  background: var(--night);
  transition: background .16s var(--ease), color .16s var(--ease);
}

.page-privacy .pv-tail__list a:hover,
.page-privacy .pv-tail__list a:focus-visible {
  background: rgba(37, 245, 194, .10);
  color: var(--neon);
}

.page-privacy .pv-tail__list em {
  font-style: normal;
  font-size: 14px;
  font-weight: 400;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 断点 ---------- */

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

@media (min-width: 940px) {
  .page-privacy .pv-doc__grid {
    grid-template-columns: var(--pv-rail) minmax(0, 1fr);
    gap: 56px;
  }

  .page-privacy .pv-index {
    position: sticky;
    top: 96px;
    align-self: start;
  }

  .page-privacy .pv-index__list {
    display: grid;
    gap: 12px;
  }

  .page-privacy .pv-chapter {
    padding-top: 32px;
    margin-bottom: 60px;
  }

  .page-privacy .pv-tail__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .pv-toggle,
  .page-privacy .pv-toggle__mark::after,
  .page-privacy .pv-index__list a,
  .page-privacy .pv-tail__list a {
    transition: none;
  }
}