.page-privacy {
  --privacy-rail: 208px;
  --privacy-measure: 66ch;
  --privacy-line: rgba(22, 64, 95, 0.62);
  display: block;
}

/* ---------- 首屏 ---------- */
.page-privacy .privacy-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--c-line);
  background: radial-gradient(130% 140% at 10% -10%, #0e3050 0%, var(--c-deep) 64%);
}

.page-privacy .privacy-hero__media {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.page-privacy .privacy-hero__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 70% 50%;
  opacity: 0.24;
  filter: saturate(0.9);
}

.page-privacy .privacy-hero__inner {
  position: relative;
  z-index: 1;
  padding-block: clamp(48px, 8vw, 108px) clamp(44px, 7vw, 84px);
}

.page-privacy .privacy-hero .crumb {
  margin-bottom: clamp(20px, 3vw, 32px);
}

.page-privacy .privacy-hero h1 {
  margin: 16px 0 0;
  max-width: 20ch;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(30px, 5.2vw, 58px);
  line-height: 1.06;
  letter-spacing: -0.022em;
  color: var(--c-text);
}

.page-privacy .privacy-hero .lede {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  max-width: 58ch;
  color: var(--c-muted);
  font-size: clamp(16px, 1.4vw, 18px);
  line-height: 1.8;
}

/* ---------- 摘要折叠卡 ---------- */
.page-privacy .privacy-digest {
  margin-top: clamp(26px, 4vw, 40px);
  max-width: 72ch;
  border: 1px solid var(--c-line);
  border-radius: var(--r-md);
  background: linear-gradient(158deg, rgba(11, 34, 57, 0.94), rgba(5, 15, 27, 0.82));
  box-shadow: inset 0 0 0 1px rgba(33, 230, 193, 0.06);
  overflow: hidden;
}

.page-privacy .privacy-digest summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px clamp(18px, 2.4vw, 26px);
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--c-cyan);
}

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

.page-privacy .privacy-digest summary::before {
  content: "";
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-cyan);
  box-shadow: 0 0 10px rgba(33, 230, 193, 0.7);
}

.page-privacy .privacy-digest summary::after {
  content: "+";
  margin-left: auto;
  font-size: 17px;
  line-height: 1;
  color: var(--c-orange);
}

.page-privacy .privacy-digest[open] summary::after {
  content: "−";
}

.page-privacy .privacy-digest summary:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: -2px;
}

.page-privacy .privacy-digest__body {
  padding: 2px clamp(18px, 2.4vw, 26px) clamp(18px, 2.4vw, 24px);
  border-top: 1px solid var(--privacy-line);
}

.page-privacy .privacy-digest__body p {
  margin: 14px 0 0;
  color: var(--c-muted);
  font-size: 15.5px;
  line-height: 1.85;
}

/* ---------- 正文双栏 ---------- */
.page-privacy .privacy-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 4.5vw, 64px);
  padding-block: clamp(48px, 7vw, 96px);
}

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

/* ---------- 章节 ---------- */
.page-privacy .privacy-sec {
  position: relative;
  padding-block: clamp(30px, 4.4vw, 52px);
  scroll-margin-top: 104px;
}

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

.page-privacy .privacy-sec + .privacy-sec::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(33, 230, 193, 0.52), rgba(22, 64, 95, 0.28) 46%, transparent 92%);
}

.page-privacy .privacy-sec__num {
  display: inline-block;
  margin-bottom: 10px;
  padding: 3px 9px;
  border: 1px solid var(--privacy-line);
  border-radius: var(--r-sm);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--c-cyan);
  background: rgba(33, 230, 193, 0.06);
}

.page-privacy .privacy-sec h2 {
  margin: 0;
  max-width: 30ch;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(21px, 2.5vw, 31px);
  line-height: 1.22;
  letter-spacing: -0.012em;
  color: var(--c-text);
}

.page-privacy .privacy-sec__body {
  margin-top: 18px;
  max-width: var(--privacy-measure);
  color: var(--c-muted);
  font-size: 16.5px;
  line-height: 1.85;
}

.page-privacy .privacy-sec__body p {
  margin: 0 0 16px;
}

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

.page-privacy .privacy-sec__body strong {
  color: var(--c-text);
  font-weight: 600;
}

.page-privacy .privacy-sec__body a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(33, 230, 193, 0.4);
  transition: border-color 0.2s var(--ease);
}

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

.page-privacy .privacy-sec__body ul {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 13px;
}

.page-privacy .privacy-sec__body li {
  position: relative;
  padding-left: 24px;
}

.page-privacy .privacy-sec__body li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.72em;
  width: 9px;
  height: 2px;
  border-radius: 2px;
  background: var(--c-cyan);
}

/* ---------- 章节锚点 ---------- */
.page-privacy .privacy-toc {
  align-self: start;
  min-width: 0;
}

.page-privacy .privacy-toc__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-muted);
}

.page-privacy .privacy-toc ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
  border-left: 1px solid var(--privacy-line);
}

.page-privacy .privacy-toc a {
  display: block;
  margin-left: -1px;
  padding: 9px 0 9px 16px;
  border-left: 2px solid transparent;
  color: var(--c-muted);
  font-size: 14px;
  line-height: 1.5;
  text-decoration: none;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), background-color 0.2s var(--ease);
}

.page-privacy .privacy-toc a:hover,
.page-privacy .privacy-toc a:focus-visible {
  color: var(--c-cyan);
  border-left-color: var(--c-cyan);
  background: rgba(33, 230, 193, 0.05);
}

/* ---------- 收束区 ---------- */
.page-privacy .privacy-outro {
  position: relative;
  overflow: hidden;
  border-top: 1px solid var(--c-line);
  background:
    radial-gradient(86% 130% at 88% 0%, rgba(33, 230, 193, 0.15), transparent 62%),
    linear-gradient(180deg, rgba(11, 34, 57, 0.92), var(--c-deep));
}

.page-privacy .privacy-outro__inner {
  padding-block: clamp(52px, 7.5vw, 100px);
}

.page-privacy .privacy-outro h2 {
  margin: 14px 0 0;
  max-width: 24ch;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.4vw, 42px);
  line-height: 1.14;
  letter-spacing: -0.018em;
  color: var(--c-text);
}

.page-privacy .privacy-outro__lede {
  margin: 18px 0 0;
  max-width: 60ch;
  color: var(--c-muted);
  font-size: 16.5px;
  line-height: 1.85;
}

.page-privacy .privacy-outro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(24px, 3.4vw, 34px);
}

/* ---------- 响应式 ---------- */
@media (max-width: 999px) {
  .page-privacy .privacy-toc {
    order: -1;
  }

  .page-privacy .privacy-toc ol {
    grid-auto-flow: column;
    grid-auto-columns: max-content;
    gap: 22px;
    overflow-x: auto;
    border-left: 0;
    border-bottom: 1px solid var(--privacy-line);
    padding-bottom: 10px;
    scrollbar-width: thin;
  }

  .page-privacy .privacy-toc a {
    margin-left: 0;
    padding: 6px 0;
    border-left: 0;
    border-bottom: 2px solid transparent;
    white-space: nowrap;
  }

  .page-privacy .privacy-toc a:hover,
  .page-privacy .privacy-toc a:focus-visible {
    border-left-color: transparent;
    border-bottom-color: var(--c-cyan);
    background: transparent;
  }
}

@media (min-width: 1000px) {
  .page-privacy .privacy-layout {
    grid-template-columns: minmax(0, 74ch) minmax(150px, 1fr);
    align-items: start;
  }

  .page-privacy .privacy-toc {
    position: sticky;
    top: 104px;
    justify-self: end;
    width: 100%;
    max-width: var(--privacy-rail);
  }
}

@media (max-width: 620px) {
  .page-privacy .privacy-sec__body {
    font-size: 16px;
  }

  .page-privacy .privacy-hero__img {
    object-position: 60% 40%;
    opacity: 0.2;
  }

  .page-privacy .privacy-outro__actions .btn {
    flex: 1 1 100%;
    text-align: center;
  }
}
</main>