.page-privacy {
  --privacy-measure: 720px;
  --privacy-hang: 78px;
  --privacy-grid-line: rgba(30, 53, 80, .38);
  --privacy-line-strong: rgba(36, 224, 214, .28);
  position: relative;
  isolation: isolate;
  overflow-x: hidden;
}

.page-privacy .privacy-grid-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(90deg, var(--privacy-grid-line) 1px, transparent 1px);
  background-size: 84px 100%;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9), rgba(0, 0, 0, .25) 55%, transparent);
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9), rgba(0, 0, 0, .25) 55%, transparent);
}

/* ---------- 首屏 ---------- */
.page-privacy .privacy-hero {
  position: relative;
  padding: 26px 0 44px;
  border-bottom: 1px solid var(--line);
}

.page-privacy .privacy-hero__grid {
  display: grid;
  gap: 30px;
}

.page-privacy .privacy-hero__text .tag {
  margin-bottom: 16px;
}

.page-privacy .privacy-hero h1 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 6.4vw, 52px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: var(--mist);
  max-width: 15em;
}

.page-privacy .privacy-hero__lead {
  margin: 0 0 24px;
  max-width: 34em;
  color: var(--haze);
  font-size: 16px;
  line-height: 1.75;
}

.page-privacy .privacy-hero__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.page-privacy .privacy-hero__facts li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px;
}

.page-privacy .privacy-hero__facts .num {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 17px;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
  min-width: 6.5em;
}

.page-privacy .privacy-hero__fact-label {
  color: var(--haze);
  font-size: 14px;
  line-height: 1.6;
}

.page-privacy .privacy-hero__visual {
  margin: 0;
  position: relative;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-privacy .privacy-hero__visual img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 1000 / 560;
}

.page-privacy .privacy-hero__caption {
  position: absolute;
  left: 0;
  bottom: 0;
  padding: 6px 12px;
  background: rgba(6, 16, 28, .86);
  border-top: 1px solid var(--line);
  border-right: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .04em;
  color: var(--cyan);
}

/* ---------- 章节导航 ---------- */
.page-privacy .privacy-index {
  position: sticky;
  top: 72px;
  z-index: 6;
  padding: 10px 0;
  background: rgba(11, 22, 38, .95);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.page-privacy .privacy-index__list {
  list-style: none;
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 4px;
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-privacy .privacy-index__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 13px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--haze);
  font-size: 13.5px;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  transition: color .2s ease, border-color .2s ease, background-color .2s ease;
}

.page-privacy .privacy-index__link .mono {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-privacy .privacy-index__link:hover,
.page-privacy .privacy-index__link:focus-visible {
  color: var(--mist);
  border-color: var(--privacy-line-strong);
}

.page-privacy .privacy-index__link.is-active {
  background: var(--cyan);
  border-color: var(--cyan);
  color: var(--ink-on-color);
}

.page-privacy .privacy-index__link.is-active .mono {
  color: var(--ink-on-color);
}

/* ---------- 正文 ---------- */
.page-privacy .privacy-body {
  padding: 44px 0 76px;
}

.page-privacy .privacy-brief {
  max-width: var(--privacy-measure);
  margin: 0 auto 8px;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-privacy .privacy-brief__summary {
  cursor: pointer;
  padding: 14px 18px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  color: var(--cyan);
  letter-spacing: .01em;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 10px;
}

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

.page-privacy .privacy-brief__summary::before {
  content: "";
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--cyan);
  border-bottom: 2px solid var(--cyan);
  transform: rotate(45deg) translateY(-2px);
  transition: transform .2s ease;
  flex: none;
}

.page-privacy .privacy-brief[open] .privacy-brief__summary::before {
  transform: rotate(225deg) translateY(-2px);
}

.page-privacy .privacy-brief__list {
  margin: 0;
  padding: 4px 18px 20px 40px;
  color: var(--haze);
  font-size: 15px;
  line-height: 1.75;
}

.page-privacy .privacy-brief__list li {
  padding: 5px 0;
}

.page-privacy .privacy-brief__list li::marker {
  font-family: var(--font-mono);
  color: var(--orange);
  font-size: 13px;
}

.page-privacy .privacy-chapter {
  position: relative;
  max-width: var(--privacy-measure);
  margin: 0 auto;
  padding: 42px 0 6px;
  border-top: 1px solid var(--line);
  margin-top: 34px;
}

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

.page-privacy .privacy-chapter__num {
  display: block;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--orange);
  margin-bottom: 8px;
}

.page-privacy .privacy-chapter__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(21px, 3.6vw, 28px);
  line-height: 1.3;
  color: var(--mist);
}

.page-privacy .privacy-chapter__lead {
  margin: 0 0 22px;
  color: var(--haze);
  font-size: 16px;
  line-height: 1.75;
}

.page-privacy .privacy-chapter__text {
  margin: 20px 0 0;
  color: var(--haze);
  font-size: 15.5px;
  line-height: 1.8;
}

.page-privacy .privacy-chapter__text a,
.page-privacy .privacy-contact__note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--privacy-line-strong);
}

.page-privacy .privacy-chapter__text a:hover,
.page-privacy .privacy-contact__note a:hover {
  border-bottom-color: var(--cyan);
}

/* 分类条目 */
.page-privacy .privacy-spec {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-privacy .privacy-spec:last-of-type {
  border-bottom: 0;
}

.page-privacy .privacy-spec__key {
  margin: 0;
}

.page-privacy .privacy-spec__text {
  margin: 0;
  color: var(--mist);
  font-size: 15.5px;
  line-height: 1.8;
}

/* 提示块 */
.page-privacy .privacy-note {
  margin: 24px 0 0;
  padding: 16px 18px;
  background: var(--paper);
  color: var(--ink);
  border-left: 3px solid var(--cyan);
}

.page-privacy .privacy-note p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
}

.page-privacy .privacy-note--paper {
  background: transparent;
  color: var(--mist);
  border: 1px solid var(--line);
  border-left: 3px solid var(--green);
}

/* 用途列表 */
.page-privacy .privacy-purpose {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-privacy .privacy-purpose li {
  padding-left: 18px;
  border-left: 2px solid var(--line);
}

.page-privacy .privacy-purpose h3 {
  margin: 0 0 6px;
  font-size: 16.5px;
  font-weight: 700;
  color: var(--cyan);
  line-height: 1.4;
}

.page-privacy .privacy-purpose p {
  margin: 0;
  color: var(--haze);
  font-size: 15px;
  line-height: 1.78;
}

/* 表格 */
.page-privacy .privacy-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-privacy .privacy-table {
  width: 100%;
  min-width: 480px;
  border-collapse: collapse;
  font-size: 15px;
}

.page-privacy .privacy-table__caption {
  caption-side: top;
  text-align: left;
  padding: 12px 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--gold);
  border-bottom: 1px solid var(--line);
}

.page-privacy .privacy-table th,
.page-privacy .privacy-table td {
  text-align: left;
  padding: 13px 16px;
  border-bottom: 1px solid var(--line);
  line-height: 1.6;
}

.page-privacy .privacy-table thead th {
  font-size: 13px;
  font-weight: 700;
  color: var(--mist);
  background: rgba(36, 224, 214, .07);
  letter-spacing: .02em;
}

.page-privacy .privacy-table tbody th {
  font-weight: 500;
  color: var(--mist);
}

.page-privacy .privacy-table tbody td {
  color: var(--haze);
}

.page-privacy .privacy-table tbody td .mono {
  font-family: var(--font-mono);
  color: var(--gold);
  font-variant-numeric: tabular-nums;
}

.page-privacy .privacy-table tbody tr:last-child th,
.page-privacy .privacy-table tbody tr:last-child td {
  border-bottom: 0;
}

/* 共享 / 不共享 */
.page-privacy .privacy-split {
  display: grid;
  gap: 16px;
}

.page-privacy .privacy-split__col {
  padding: 18px;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-privacy .privacy-split__col--yes {
  border-top: 2px solid var(--green);
}

.page-privacy .privacy-split__col--no {
  border-top: 2px solid var(--crimson);
}

.page-privacy .privacy-split__title {
  margin: 0 0 12px;
  font-size: 15px;
}

.page-privacy .privacy-split__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-privacy .privacy-split__list li {
  position: relative;
  padding-left: 16px;
  color: var(--haze);
  font-size: 15px;
  line-height: 1.72;
}

.page-privacy .privacy-split__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 6px;
  height: 1px;
  background: var(--cyan);
}

.page-privacy .privacy-split__col--no .privacy-split__list li::before {
  background: var(--crimson);
}

/* 权利条目 */
.page-privacy .privacy-rights {
  display: grid;
  gap: 14px;
}

.page-privacy .privacy-rights__item {
  padding: 16px 18px;
  border: 1px solid var(--line);
  background: var(--panel);
  transition: border-color .2s ease, transform .2s ease;
}

.page-privacy .privacy-rights__item:hover {
  border-color: var(--privacy-line-strong);
  transform: translateY(-2px);
}

.page-privacy .privacy-rights__label {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--mist);
}

.page-privacy .privacy-rights__label .mono {
  font-family: var(--font-mono);
  color: var(--cyan);
  margin-right: 8px;
  font-size: 14px;
}

.page-privacy .privacy-rights__desc {
  margin: 0;
  color: var(--haze);
  font-size: 15px;
  line-height: 1.78;
}

/* 联系方式块 */
.page-privacy .privacy-contact {
  margin: 28px 0 0;
  padding: 22px 20px;
  border: 1px solid var(--line);
  border-top: 2px solid var(--cyan);
  background: var(--panel);
}

.page-privacy .privacy-contact__title {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 17px;
  color: var(--mist);
}

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

.page-privacy .privacy-contact__note {
  margin: 16px 0 0;
  color: var(--haze);
  font-size: 14.5px;
  line-height: 1.78;
}

/* 术语弱提示 */
.page-privacy .term {
  appearance: none;
  background: transparent;
  border: 0;
  padding: 0 1px;
  margin: 0;
  font: inherit;
  color: var(--cyan);
  cursor: help;
  border-bottom: 1px dashed rgba(36, 224, 214, .5);
}

.page-privacy [data-term-note] {
  display: none;
  color: var(--haze);
}

.page-privacy .term[aria-expanded="true"] + [data-term-note] {
  display: inline;
  color: var(--mist);
  border-bottom: 1px solid var(--line);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-privacy .privacy-spec {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 0 18px;
    align-items: start;
    padding: 18px 0;
  }

  .page-privacy .privacy-purpose {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px 26px;
  }

  .page-privacy .privacy-rights {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-privacy .contact-grid--privacy {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-privacy .privacy-hero {
    padding: 34px 0 56px;
  }

  .page-privacy .privacy-hero__grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
    gap: 48px;
    align-items: center;
  }

  .page-privacy .privacy-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }

  .page-privacy .privacy-hero__facts li {
    flex-direction: column;
    gap: 4px;
    padding-right: 12px;
    border-right: 1px solid var(--line);
  }

  .page-privacy .privacy-hero__facts li:last-child {
    border-right: 0;
  }

  .page-privacy .privacy-split {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

  .page-privacy .privacy-brief__list {
    columns: 2;
    column-gap: 34px;
    padding: 4px 24px 22px 44px;
  }

  .page-privacy .privacy-brief__list li {
    break-inside: avoid;
  }

  .page-privacy .privacy-body {
    padding: 56px 0 92px;
  }
}

@media (min-width: 1080px) {
  .page-privacy .privacy-chapter__num {
    position: absolute;
    left: calc(-1 * var(--privacy-hang));
    top: 46px;
    margin-bottom: 0;
    font-size: 15px;
    color: var(--orange);
    padding-right: 10px;
  }

  .page-privacy .privacy-chapter__num::after {
    content: "";
    position: absolute;
    right: 0;
    top: 50%;
    width: 40px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--line));
    transform: translateY(-50%);
  }

  .page-privacy .privacy-chapter__title {
    font-size: 30px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-index__link,
  .page-privacy .privacy-rights__item,
  .page-privacy .privacy-brief__summary::before {
    transition: none;
  }

  .page-privacy .privacy-rights__item:hover {
    transform: none;
  }
}