.page-privacy {
  --prv-w: 74ch;
  --prv-paper: rgba(237, 239, 242, 0.035);
  --prv-red-wash: rgba(200, 16, 46, 0.07);
}

/* ---------- 首屏 ---------- */
.page-privacy .prv-hero {
  padding-top: clamp(18px, 3.5vw, 40px);
}

.page-privacy .prv-hero__kicker {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--cyan);
  line-height: 1.6;
}

.page-privacy .prv-hero__kicker::before {
  content: "";
  flex: none;
  width: 28px;
  height: 2px;
  background: var(--red);
}

.page-privacy .prv-hero__title {
  margin: 0;
  font-size: clamp(46px, 10vw, 104px);
  font-weight: 900;
  line-height: 0.94;
  letter-spacing: -0.02em;
  color: var(--porcelain);
}

.page-privacy .prv-hero__lede {
  max-width: var(--prv-w);
  margin: clamp(16px, 2.4vw, 26px) 0 0;
  font-size: clamp(16px, 1.3vw, 17px);
  line-height: 1.9;
  color: var(--mist);
}

.page-privacy .prv-hero__figure {
  margin: clamp(26px, 4vw, 46px) 0 0;
}

.page-privacy .prv-hero__figure .ms-figure__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* ---------- 文档骨架 ---------- */
.page-privacy .prv-doc {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 44px);
  padding: clamp(36px, 6vw, 76px) 0 clamp(64px, 10vw, 140px);
}

.page-privacy .prv-body {
  min-width: 0;
}

/* ---------- 目录 ---------- */
.page-privacy .prv-toc {
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-privacy .prv-toc > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 15px 18px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--porcelain);
}

.page-privacy .prv-toc > summary::-webkit-details-marker {
  display: none;
}

.page-privacy .prv-toc > summary::after {
  content: "＋";
  font-size: 14px;
  color: var(--cyan);
  line-height: 1;
}

.page-privacy .prv-toc[open] > summary::after {
  content: "－";
}

.page-privacy .prv-toc ol {
  margin: 0;
  padding: 2px 0 14px;
  list-style: none;
}

.page-privacy .prv-toc li {
  margin: 0;
}

.page-privacy .prv-toc a {
  position: relative;
  display: block;
  padding: 10px 18px 10px 36px;
  border-left: 2px solid transparent;
  color: var(--mist);
  font-size: 14px;
  line-height: 1.6;
  text-decoration: none;
  transition: color 0.24s var(--ease), background-color 0.24s var(--ease),
    border-color 0.24s var(--ease);
}

.page-privacy .prv-toc a::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 50%;
  width: 9px;
  height: 1px;
  background: var(--line);
  transform: translateY(-50%);
  transition: background-color 0.24s var(--ease);
}

.page-privacy .prv-toc a:hover,
.page-privacy .prv-toc a:focus-visible {
  color: var(--porcelain);
  background: var(--prv-red-wash);
  border-left-color: var(--red);
}

.page-privacy .prv-toc a:hover::before,
.page-privacy .prv-toc a:focus-visible::before {
  background: var(--cyan);
}

/* ---------- 章节 ---------- */
.page-privacy .prv-sec + .prv-sec {
  margin-top: clamp(46px, 6vw, 84px);
}

.page-privacy .prv-sec__head {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: clamp(16px, 2.2vw, 24px);
  padding-top: clamp(20px, 2.6vw, 30px);
  border-top: 1px solid var(--line);
}

.page-privacy .prv-sec__head::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 58px;
  height: 2px;
  background: var(--red);
}

.page-privacy .prv-sec__no {
  flex: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-privacy .prv-sec__title {
  margin: 0;
  font-size: clamp(21px, 2.5vw, 30px);
  font-weight: 900;
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--porcelain);
}

.page-privacy .prv-p {
  max-width: var(--prv-w);
  margin: 0 0 1.2em;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--mist);
}

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

/* ---------- 条目列表 ---------- */
.page-privacy .prv-list {
  max-width: var(--prv-w);
  margin: 0 0 1.4em;
  padding: 0;
  list-style: none;
}

.page-privacy .prv-list > li {
  position: relative;
  padding: 12px 0 12px 26px;
  border-top: 1px solid var(--line);
  font-size: 16px;
  line-height: 1.8;
  color: var(--mist);
}

.page-privacy .prv-list > li:last-child {
  border-bottom: 1px solid var(--line);
}

.page-privacy .prv-list > li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 24px;
  width: 13px;
  height: 2px;
  background: var(--cyan);
}

.page-privacy .prv-list > li strong {
  color: var(--porcelain);
  font-weight: 600;
}

/* ---------- 数值磁贴 ---------- */
.page-privacy .prv-metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  max-width: var(--prv-w);
  margin: 0 0 1.5em;
  padding: 1px;
  list-style: none;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-privacy .prv-metrics > li {
  padding: 18px 16px 20px;
  background: var(--panel);
}

.page-privacy .prv-metrics__num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(22px, 3.2vw, 32px);
  line-height: 1.1;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-privacy .prv-metrics__label {
  display: block;
  margin-top: 9px;
  font-size: 13px;
  line-height: 1.65;
  color: var(--mist);
}

/* ---------- 提示块 ---------- */
.page-privacy .prv-callout {
  max-width: var(--prv-w);
  margin: 0;
  padding: 16px 20px 16px 22px;
  border-left: 3px solid var(--red);
  background: var(--prv-paper);
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--porcelain);
}

/* ---------- 正文内链接 ---------- */
.page-privacy .prv-body a {
  color: var(--red-bright);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 92, 110, 0.38);
  transition: border-color 0.24s var(--ease), color 0.24s var(--ease);
}

.page-privacy .prv-body a:hover,
.page-privacy .prv-body a:focus-visible {
  color: var(--porcelain);
  border-bottom-color: var(--red-bright);
}

/* ---------- 联系信息 ---------- */
.page-privacy .prv-contact {
  max-width: var(--prv-w);
  margin: 0 0 1.4em;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-privacy .prv-contact__item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 6px 16px;
  padding: 14px 18px;
  border-top: 1px solid var(--line);
}

.page-privacy .prv-contact__item:first-child {
  border-top: 0;
}

.page-privacy .prv-contact__key {
  flex: none;
  min-width: 72px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-privacy .prv-contact__val {
  font-size: 15.5px;
  line-height: 1.7;
  color: var(--porcelain);
  overflow-wrap: anywhere;
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-privacy .prv-metrics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-privacy .prv-doc {
    grid-template-columns: minmax(190px, 216px) minmax(0, 1fr);
    gap: clamp(44px, 5vw, 84px);
  }

  .page-privacy .prv-toc {
    position: sticky;
    top: 104px;
    align-self: start;
    border: 0;
    border-left: 1px solid var(--line);
    background: none;
  }

  .page-privacy .prv-toc > summary {
    display: none;
  }

  .page-privacy .prv-toc ol {
    padding: 0;
  }

  .page-privacy .prv-toc a {
    padding: 8px 0 8px 22px;
    background: none;
  }

  .page-privacy .prv-toc a::before {
    left: 8px;
  }

  .page-privacy .prv-toc a:hover,
  .page-privacy .prv-toc a:focus-visible {
    background: none;
    border-left-color: var(--cyan);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .prv-toc a,
  .page-privacy .prv-body a {
    transition: none;
  }
}