/* ==========================================================
   数据与隐私 /data-privacy/
   章节索引 + 窄栏长文的安静阅读节奏
   ========================================================== */

.page-privacy {
  --pv-rail: 212px;
  --pv-flow: 44rem;
  --pv-gap: clamp(30px, 5vw, 64px);
  display: block;
  padding-bottom: clamp(56px, 9vw, 104px);
}

/* ---------- 页首 ---------- */

.page-privacy .privacy-hero {
  padding-block: clamp(18px, 3vw, 34px) 0;
}

.page-privacy .privacy-hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.page-privacy .privacy-hero .display {
  margin: 12px 0 0;
  max-width: 15ch;
  letter-spacing: -0.01em;
  line-height: 1.12;
}

.page-privacy .privacy-hero .lede {
  margin: 20px 0 0;
  max-width: 42em;
}

.page-privacy .privacy-figure {
  margin: clamp(24px, 4vw, 40px) 0 0;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background:
    radial-gradient(120% 90% at 12% 8%, rgba(242, 179, 61, 0.12) 0%, transparent 58%),
    linear-gradient(152deg, var(--c-panel) 0%, var(--c-dome) 74%);
}

.page-privacy .privacy-figure img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  object-position: center;
}

/* ---------- 主体双栏 ---------- */

.page-privacy .privacy-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pv-gap);
  margin-top: clamp(34px, 6vw, 68px);
}

/* ---------- 章节索引 ---------- */

.page-privacy .privacy-toc {
  border-block: 1px solid var(--c-line);
  padding-block: 14px;
  min-width: 0;
}

.page-privacy .privacy-toc-label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-dim);
}

.page-privacy .privacy-toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: nowrap;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-privacy .privacy-toc-list::-webkit-scrollbar {
  height: 4px;
}

.page-privacy .privacy-toc-list::-webkit-scrollbar-thumb {
  background: var(--c-line);
  border-radius: var(--radius-pill);
}

.page-privacy .privacy-toc-list li {
  flex: 0 0 auto;
}

.page-privacy .privacy-toc-list a {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 7px 14px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--c-muted);
  text-decoration: none;
  font-size: 13px;
  line-height: 1.4;
  white-space: nowrap;
  transition:
    color var(--dur) var(--ease),
    border-color var(--dur) var(--ease),
    background-color var(--dur) var(--ease);
}

.page-privacy .privacy-toc-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--c-amber);
}

.page-privacy .privacy-toc-list a:hover,
.page-privacy .privacy-toc-list a:focus-visible {
  color: var(--c-text);
  border-color: var(--c-amber);
  background: var(--c-panel);
  outline: none;
}

/* ---------- 正文流向 ---------- */

.page-privacy .privacy-flow {
  min-width: 0;
  max-width: var(--pv-flow);
}

.page-privacy .privacy-sec {
  scroll-margin-top: 110px;
  padding-block: clamp(30px, 4.5vw, 46px);
  border-top: 1px solid var(--c-line);
}

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

.page-privacy .privacy-sec-head {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 18px;
}

.page-privacy .privacy-sec-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--c-dim);
  padding-top: 7px;
  transition: color var(--dur) var(--ease);
}

.page-privacy .privacy-sec:target .privacy-sec-num {
  color: var(--c-amber);
}

.page-privacy .privacy-sec .h2 {
  margin: 0;
  min-width: 0;
}

.page-privacy .privacy-copy p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--c-muted);
}

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

/* ---------- 定义列表 ---------- */

.page-privacy .privacy-defs {
  margin: 22px 0 0;
  padding: 0;
  border-top: 1px solid var(--c-line);
}

.page-privacy .privacy-defs > div {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--c-line);
}

.page-privacy .privacy-defs dt {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--c-amber);
  line-height: 1.6;
}

.page-privacy .privacy-defs dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-muted);
}

/* ---------- 可折叠清理步骤 ---------- */

.page-privacy .privacy-fold {
  margin-top: 22px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-panel);
  overflow: hidden;
}

.page-privacy .privacy-fold > summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 18px;
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--c-text);
  list-style: none;
  transition: background-color var(--dur) var(--ease);
}

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

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

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

.page-privacy .privacy-fold > summary:hover,
.page-privacy .privacy-fold > summary:focus-visible {
  background: var(--c-panel-hi);
  outline: none;
}

.page-privacy .privacy-steps {
  list-style: none;
  counter-reset: pvstep;
  margin: 0;
  padding: 4px 18px 22px;
  display: grid;
  gap: 14px;
  border-top: 1px solid var(--c-line);
}

.page-privacy .privacy-steps li {
  counter-increment: pvstep;
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 10px;
  font-size: 15px;
  line-height: 1.72;
  color: var(--c-muted);
}

.page-privacy .privacy-steps li::before {
  content: counter(pvstep, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--c-celadon);
  padding-top: 4px;
}

/* ---------- 提示块 ---------- */

.page-privacy .privacy-note {
  margin: 20px 0 0;
  padding: 14px 18px;
  border-left: 3px solid var(--c-celadon);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: var(--c-panel);
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--c-muted);
}

/* ---------- 联系面板 ---------- */

.page-privacy .privacy-contact {
  margin-top: 6px;
  padding: clamp(20px, 3.4vw, 30px);
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-panel);
}

.page-privacy .privacy-contact-label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-dim);
}

.page-privacy .privacy-mail {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: clamp(15px, 2.6vw, 19px);
  line-height: 1.4;
  color: var(--c-amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(242, 179, 61, 0.42);
  padding-bottom: 2px;
  overflow-wrap: anywhere;
  transition:
    color var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}

.page-privacy .privacy-mail:hover,
.page-privacy .privacy-mail:focus-visible {
  color: var(--c-text);
  border-color: var(--c-text);
  outline: none;
}

.page-privacy .privacy-contact-text {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--c-muted);
}

/* ---------- 收尾行动点 ---------- */

.page-privacy .privacy-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(26px, 4vw, 38px);
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 1px solid var(--c-line);
}

.page-privacy .privacy-actions .btn {
  white-space: nowrap;
}

/* ---------- 断点 ---------- */

@media (min-width: 640px) {

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

  .page-privacy .privacy-defs dt {
    padding-top: 3px;
  }
}

@media (min-width: 900px) {

  .page-privacy .privacy-body {
    grid-template-columns: var(--pv-rail) minmax(0, 1fr);
    gap: clamp(34px, 4.6vw, 72px);
    align-items: start;
  }

  .page-privacy .privacy-toc {
    position: sticky;
    top: 108px;
    border-block: 0;
    padding-block: 0;
  }

  .page-privacy .privacy-toc-list {
    display: grid;
    gap: 2px;
    overflow: visible;
  }

  .page-privacy .privacy-toc-list li {
    flex: none;
  }

  .page-privacy .privacy-toc-list a {
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    padding: 9px 10px 9px 12px;
    white-space: normal;
    font-size: 13.5px;
    line-height: 1.55;
  }

  .page-privacy .privacy-toc-list a:hover,
  .page-privacy .privacy-toc-list a:focus-visible {
    border-left-color: var(--c-amber);
  }
}

@media (min-width: 1180px) {

  .page-privacy .privacy-hero .display {
    max-width: 18ch;
  }
}

@media (prefers-reduced-motion: reduce) {

  .page-privacy .privacy-toc-list a,
  .page-privacy .privacy-sec-num,
  .page-privacy .privacy-fold > summary,
  .page-privacy .privacy-mail {
    transition: none;
  }
}