.page-privacy {
  --pv-measure: 68ch;
  --pv-index-w: 224px;
  display: block;
  overflow-x: hidden;
}

/* 页眉 */
.page-privacy .privacy-masthead {
  position: relative;
  padding-top: clamp(22px, 4.5vw, 56px);
  padding-bottom: clamp(20px, 4vw, 46px);
  overflow: hidden;
  isolation: isolate;
}

.page-privacy .privacy-masthead::before {
  content: "";
  position: absolute;
  inset: -14% -6% auto -6%;
  height: 124%;
  background-image:
    linear-gradient(to right, rgba(108, 61, 255, .15) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 240, 200, .07) 1px, transparent 1px);
  background-size: 72px 72px, 72px 72px;
  transform: skewY(-6deg);
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, rgba(0, 0, 0, .18) 66%, transparent 100%);
  mask-image: linear-gradient(to bottom, #000 0%, rgba(0, 0, 0, .18) 66%, transparent 100%);
  pointer-events: none;
  z-index: -1;
}

.page-privacy .privacy-masthead h1 {
  font-size: clamp(34px, 7.4vw, 76px);
  line-height: 1.08;
  font-weight: 900;
  letter-spacing: .05em;
  color: var(--text);
  margin: 10px 0 0;
}

.page-privacy .privacy-masthead .lede {
  max-width: 58ch;
  margin: 16px 0 0;
  font-size: var(--fs-18);
  line-height: 1.75;
  color: var(--muted);
  overflow-wrap: break-word;
}

.page-privacy .privacy-hero {
  position: relative;
  margin: clamp(24px, 4vw, 44px) 0 0;
  border: 1px solid var(--line-soft);
  background: var(--night);
  overflow: hidden;
  clip-path: polygon(0 0, calc(100% - 30px) 0, 100% 30px, 100% 100%, 0 100%);
}

.page-privacy .privacy-hero img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  opacity: .84;
}

.page-privacy .privacy-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    to bottom,
    rgba(233, 236, 245, .05) 0 1px,
    transparent 1px 4px
  );
  pointer-events: none;
}

/* 主体布局 */
.page-privacy .privacy-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 4vw, 38px);
  padding-top: clamp(28px, 5vw, 56px);
  padding-bottom: clamp(48px, 8vw, 112px);
}

/* 条款索引 */
.page-privacy .privacy-index {
  min-width: 0;
}

.page-privacy .index-kicker {
  font-family: var(--font-mono);
  font-size: var(--fs-11);
  letter-spacing: .24em;
  color: var(--muted);
  margin: 0 0 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.page-privacy .index-ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
}

.page-privacy .index-ol a {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  font-size: var(--fs-13);
  line-height: 1.4;
  color: var(--muted);
  text-decoration: none;
  padding: 6px 11px;
  border: 1px solid var(--line-soft);
  background: rgba(22, 26, 42, .55);
  clip-path: polygon(0 0, calc(100% - 9px) 0, 100% 9px, 100% 100%, 0 100%);
  transition: color .25s var(--ease), border-color .25s var(--ease), background-color .25s var(--ease);
}

.page-privacy .index-ol a:hover,
.page-privacy .index-ol a:focus-visible {
  color: var(--text);
  border-color: var(--purple);
  background: rgba(108, 61, 255, .12);
}

.page-privacy .index-ol .num {
  font-family: var(--font-mono);
  font-size: var(--fs-11);
  letter-spacing: .06em;
  color: var(--purple-soft);
}

.page-privacy .index-note {
  max-width: 34ch;
  margin: 16px 0 0;
  font-size: var(--fs-11);
  letter-spacing: .06em;
  line-height: 1.8;
  color: var(--muted);
}

/* 条款正文 */
.page-privacy .privacy-doc {
  min-width: 0;
}

.page-privacy .privacy-clause {
  position: relative;
  padding-top: clamp(20px, 3vw, 30px);
  margin-bottom: clamp(26px, 4vw, 46px);
  border-top: 1px solid var(--line-soft);
}

.page-privacy .privacy-clause:first-child {
  border-top-color: rgba(108, 61, 255, .55);
}

.page-privacy .clause-head {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0 0 16px;
}

.page-privacy .clause-num {
  flex: none;
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--purple-soft);
  background: rgba(108, 61, 255, .12);
  border: 1px solid rgba(108, 61, 255, .38);
  padding: 3px 9px;
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
}

.page-privacy .privacy-clause h2 {
  margin: 0;
  font-size: var(--fs-24);
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: .035em;
  color: var(--text);
}

.page-privacy .clause-body {
  max-width: var(--pv-measure);
}

.page-privacy .privacy-clause p {
  margin: 0 0 12px;
  font-size: var(--fs-15);
  line-height: 1.85;
  color: var(--text);
  overflow-wrap: break-word;
}

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

.page-privacy .privacy-clause strong {
  font-weight: 800;
  color: var(--text);
}

.page-privacy .privacy-clause a {
  color: var(--purple-soft);
  text-decoration: underline;
  text-decoration-color: rgba(169, 139, 255, .42);
  text-underline-offset: 3px;
  transition: color .22s var(--ease), text-decoration-color .22s var(--ease);
}

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

/* 条款内列表 */
.page-privacy .clause-list {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
}

.page-privacy .clause-list li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 10px;
  font-size: var(--fs-15);
  line-height: 1.82;
  color: var(--text);
  overflow-wrap: break-word;
}

.page-privacy .clause-list li:last-child {
  margin-bottom: 0;
}

.page-privacy .clause-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: .82em;
  width: 9px;
  height: 1px;
  background: var(--purple);
}

/* 目的对照表 */
.page-privacy .purpose-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-soft);
}

.page-privacy .purpose-list > div {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-privacy .purpose-list dt {
  font-family: var(--font-mono);
  font-size: var(--fs-13);
  letter-spacing: .08em;
  color: var(--purple-soft);
}

.page-privacy .purpose-list dd {
  margin: 0;
  font-size: var(--fs-15);
  line-height: 1.82;
  color: var(--text);
  overflow-wrap: break-word;
}

/* 展开的补充说明 */
.page-privacy .clause-more {
  margin-top: 16px;
  border: 1px solid var(--line-soft);
  background: rgba(22, 26, 42, .5);
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
}

.page-privacy .clause-more summary {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 12px 15px;
  font-size: var(--fs-13);
  letter-spacing: .06em;
  color: var(--purple-soft);
  cursor: pointer;
  list-style: none;
}

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

.page-privacy .clause-more summary::before {
  content: "";
  flex: none;
  width: 7px;
  height: 7px;
  border-right: 1px solid var(--purple);
  border-bottom: 1px solid var(--purple);
  transform: rotate(-45deg);
  transition: transform .3s var(--ease);
}

.page-privacy .clause-more[open] summary::before {
  transform: rotate(45deg);
}

.page-privacy .clause-more p {
  margin: 0;
  padding: 0 15px 15px;
  color: var(--muted);
  font-size: var(--fs-13);
  line-height: 1.85;
}

/* 返回顶部条款 */
.page-privacy .privacy-top {
  display: none;
}

/* 桌面端 */
@media (min-width: 1000px) {
  .page-privacy .privacy-body {
    grid-template-columns: var(--pv-index-w) minmax(0, 1fr);
    align-items: start;
    gap: clamp(36px, 5vw, 84px);
  }

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

  .page-privacy .index-ol {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 0;
  }

  .page-privacy .index-ol a {
    display: flex;
    width: 100%;
    border: 0;
    border-left: 2px solid var(--line-soft);
    background: transparent;
    clip-path: none;
    padding: 8px 10px 8px 13px;
  }

  .page-privacy .index-ol a:hover,
  .page-privacy .index-ol a:focus-visible {
    border-left-color: var(--purple);
    background: rgba(108, 61, 255, .1);
  }

  .page-privacy .purpose-list > div {
    grid-template-columns: 172px minmax(0, 1fr);
    gap: 24px;
    align-items: baseline;
  }
}

/* 大屏常驻锚点 */
@media (min-width: 1180px) {
  .page-privacy .privacy-top {
    display: inline-flex;
    align-items: center;
    position: fixed;
    right: 30px;
    bottom: 36px;
    z-index: 20;
    font-family: var(--font-mono);
    font-size: var(--fs-11);
    letter-spacing: .18em;
    color: var(--muted);
    text-decoration: none;
    padding: 10px 14px;
    border: 1px solid var(--line);
    background: rgba(13, 16, 27, .9);
    clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
    transition: color .25s var(--ease), border-color .25s var(--ease);
  }

  .page-privacy .privacy-top:hover,
  .page-privacy .privacy-top:focus-visible {
    color: var(--text);
    border-color: var(--purple);
  }
}

/* 打印适配 */
@media print {
  .page-privacy .privacy-masthead::before,
  .page-privacy .privacy-hero,
  .page-privacy .privacy-index,
  .page-privacy .privacy-top {
    display: none !important;
  }

  .page-privacy .privacy-clause {
    border-top-color: #9a9a9a;
    break-inside: avoid;
  }

  .page-privacy .privacy-clause h2,
  .page-privacy .privacy-clause p,
  .page-privacy .clause-list li,
  .page-privacy .purpose-list dd {
    color: #111;
  }

  .page-privacy .clause-num,
  .page-privacy .purpose-list dt {
    color: #333;
    border-color: #9a9a9a;
    background: transparent;
  }
}