/* ===== 隐私政策页 · 页面专属样式 ===== */
.page-privacy {
  display: block;
  padding-bottom: 84px;
  background: var(--bg);
  color: var(--ink);
}

/* ---------- 首屏文档头 ---------- */
.page-privacy .doc-head {
  padding-top: 40px;
}

.page-privacy .breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  list-style: none;
  margin: 0 0 30px;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.page-privacy .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 6px;
  color: var(--grid);
}

.page-privacy .breadcrumb__link {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid var(--grid);
  padding-bottom: 1px;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-privacy .breadcrumb__link:hover,
.page-privacy .breadcrumb__link:focus-visible {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

.page-privacy .breadcrumb__current {
  color: var(--ink);
}

.page-privacy .doc-head__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.page-privacy .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
}

.page-privacy h1 {
  margin: 0 0 20px;
  max-width: 22ch;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2rem, 5.6vw, 3.5rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-privacy .lede {
  margin: 0 0 26px;
  max-width: 64ch;
  font-size: 16.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-privacy .tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 36px;
}

/* 标签 */
.page-privacy .tag {
  display: inline-block;
  flex: none;
  padding: 3px 8px;
  border: 1px solid var(--grid);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.07em;
  line-height: 1.5;
  color: var(--muted);
  white-space: nowrap;
}

.page-privacy .tag--accent {
  border-color: var(--accent);
  color: var(--accent);
}

.page-privacy .tag--data {
  border-color: var(--data);
  color: var(--data);
}

/* 头图 */
.page-privacy .pp-med {
  margin: 0 0 8px;
}

.page-privacy .pp-med__frame {
  position: relative;
  border: var(--line);
  background: var(--rail);
  overflow: hidden;
}

.page-privacy .pp-med__frame::before,
.page-privacy .pp-med__frame::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: 1px solid var(--accent);
  z-index: 2;
}

.page-privacy .pp-med__frame::before {
  top: 8px;
  left: 8px;
  border-right: 0;
  border-bottom: 0;
}

.page-privacy .pp-med__frame::after {
  right: 8px;
  bottom: 8px;
  border-left: 0;
  border-top: 0;
}

.page-privacy .pp-med__frame img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  opacity: 0.85;
}

.page-privacy .pp-med__cap {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* ---------- 双栏骨架 ---------- */
.page-privacy .page-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  margin-top: 52px;
}

.page-privacy .doc-flow {
  min-width: 0;
}

/* ---------- 侧轨目录 ---------- */
.page-privacy .rail {
  margin-bottom: 36px;
  padding: 18px 18px 16px;
  border: var(--line);
  background: var(--rail);
}

.page-privacy .rail__title {
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: var(--line);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-privacy .toc__summary {
  display: block;
  padding: 10px 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--accent);
  cursor: pointer;
  list-style: none;
  border-bottom: var(--line);
}

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

.page-privacy .toc__summary::after {
  content: " +";
}

.page-privacy .toc[open] .toc__summary::after {
  content: " −";
}

.page-privacy .toc__nav {
  padding-top: 8px;
}

.page-privacy .rail__nav {
  display: flex;
  flex-direction: column;
}

.page-privacy .rail__link {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  padding: 9px 0 9px 10px;
  border-left: 1px solid var(--grid);
  font-size: 14px;
  line-height: 1.5;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.page-privacy .rail__link:hover,
.page-privacy .rail__link:focus-visible {
  color: var(--ink);
  border-left-color: var(--accent-soft);
  background: rgba(182, 255, 60, 0.04);
}

.page-privacy .rail__link.is-current {
  color: var(--ink);
  border-left-color: var(--accent);
  background: rgba(182, 255, 60, 0.07);
}

.page-privacy .rail__index {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
}

.page-privacy .rail__note {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: var(--line);
  font-size: 12px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 条款章节 ---------- */
.page-privacy .chapter {
  padding: 38px 0;
  border-bottom: var(--line);
  scroll-margin-top: calc(var(--header-offset) + 24px);
}

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

.page-privacy .chapter__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px 16px;
  align-items: baseline;
  margin-bottom: 12px;
}

.page-privacy .chapter__index {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--accent);
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
}

.page-privacy .chapter__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.32rem, 2.4vw, 1.85rem);
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-privacy .chapter__lede {
  margin: 0 0 24px;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--muted);
}

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

/* ---------- 数据格 ---------- */
.page-privacy .data-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  border: var(--line);
  background: var(--grid);
  margin: 0;
}

.page-privacy .data-cell {
  min-width: 0;
  padding: 20px 18px 22px;
  background: var(--panel);
}

.page-privacy .data-cell__title {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
}

.page-privacy .data-cell__note {
  margin: 14px 0 0;
  font-size: 12.5px;
  line-height: 1.75;
  color: var(--muted);
}

.page-privacy .field {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--grid);
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink);
}

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

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

/* ---------- 用途列表 ---------- */
.page-privacy .use-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--line);
}

.page-privacy .use-list__item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 18px 0;
  border-bottom: var(--line);
}

.page-privacy .use-list__key {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.page-privacy .use-list__text {
  margin: 0;
  max-width: 66ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink);
}

/* ---------- 强调条款 ---------- */
.page-privacy .clause {
  margin: 22px 0 0;
  padding: 16px 18px;
  border-left: 1px solid var(--accent);
  background: rgba(182, 255, 60, 0.05);
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink);
}

.page-privacy .clause strong {
  color: var(--accent);
  font-weight: 700;
}

.page-privacy .clause--data {
  border-left-color: var(--data);
  background: rgba(47, 107, 255, 0.07);
}

/* ---------- 台账行 ---------- */
.page-privacy .ledger {
  border-top: var(--line);
}

.page-privacy .ledger__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 5px;
  padding: 16px 0;
  border-bottom: var(--line);
}

.page-privacy .ledger__key {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.page-privacy .ledger__value {
  margin: 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

.page-privacy .ledger__meta {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--accent);
}

/* ---------- 长文 ---------- */
.page-privacy .prose {
  margin-top: 22px;
}

.page-privacy .prose p {
  margin: 0 0 14px;
  max-width: 68ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted);
}

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

/* ---------- 权利清单 ---------- */
.page-privacy .rights {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--line);
}

.page-privacy .rights__item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 0;
  border-bottom: var(--line);
}

.page-privacy .rights__num {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}

.page-privacy .rights__title {
  margin: 0 0 5px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.page-privacy .rights__text {
  margin: 0;
  max-width: 64ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 联系信息块 ---------- */
.page-privacy .contact-block {
  margin-top: 26px;
  border: var(--line);
  background: var(--panel);
}

.page-privacy .contact-block__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 5px;
  padding: 16px 20px;
  border-bottom: var(--line);
}

.page-privacy .contact-block__row:last-child {
  border-bottom: 0;
}

.page-privacy .contact-block__label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-privacy .contact-block__value {
  font-size: 15px;
  line-height: 1.7;
  color: var(--ink);
  word-break: break-word;
}

.page-privacy .contact-block__value--mono {
  font-family: var(--font-mono);
  font-size: 14.5px;
  letter-spacing: 0.02em;
  color: var(--accent);
}

/* ---------- 版本记录 ---------- */
.page-privacy .changelog {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--line);
}

.page-privacy .changelog__item {
  display: grid;
  grid-template-columns: 1fr;
  gap: 7px;
  padding: 16px 0;
  border-bottom: var(--line);
}

.page-privacy .changelog__ver {
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.05em;
  color: var(--ink);
}

.page-privacy .changelog__text {
  margin: 0;
  max-width: 64ch;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 页尾入口 ---------- */
.page-privacy .doc-end {
  margin-top: 52px;
  padding-top: 30px;
  border-top: var(--line);
}

.page-privacy .doc-end__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 22px;
}

.page-privacy .doc-end__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.2rem, 2vw, 1.5rem);
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-privacy .doc-end__top {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--ink);
  text-decoration: none;
  transition: border-color 0.18s ease, color 0.18s ease;
}

.page-privacy .doc-end__top:hover,
.page-privacy .doc-end__top:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
}

.page-privacy .doc-end__links {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  border: var(--line);
  background: var(--grid);
}

.page-privacy .card {
  display: block;
  min-width: 0;
  padding: 20px;
  background: var(--panel);
  color: inherit;
  text-decoration: none;
  transition: background-color 0.18s ease, box-shadow 0.18s ease;
}

.page-privacy .card:hover,
.page-privacy .card:focus-visible {
  background: var(--rail);
  box-shadow: inset 2px 0 0 0 var(--accent);
}

.page-privacy .card__index {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  color: var(--accent);
}

.page-privacy .card__title {
  margin: 0 0 7px;
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 700;
  color: var(--ink);
}

.page-privacy .card__text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 720px) {
  .page-privacy .data-grid--3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-privacy .use-list__item {
    grid-template-columns: 140px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }

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

@media (min-width: 760px) {
  .page-privacy .ledger__row {
    grid-template-columns: 180px minmax(0, 1fr) 130px;
    gap: 20px;
    align-items: baseline;
  }

  .page-privacy .changelog__item {
    grid-template-columns: 80px 120px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }

  .page-privacy .contact-block__row {
    grid-template-columns: 130px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }
}

@media (min-width: 1024px) {
  .page-privacy {
    padding-bottom: 110px;
  }

  .page-privacy .doc-head {
    padding-top: 56px;
  }

  .page-privacy h1 {
    font-size: clamp(2.4rem, 4.4vw, 3.9rem);
  }

  .page-privacy .page-shell {
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 56px;
    align-items: start;
    margin-top: 64px;
  }

  .page-privacy .rail {
    position: sticky;
    top: calc(var(--header-offset) + 12px);
    margin-bottom: 0;
  }

  .page-privacy .toc__summary {
    display: none;
  }

  .page-privacy .toc__nav {
    padding-top: 0;
  }

  .page-privacy .chapter {
    padding: 46px 0;
  }

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

@media (min-width: 1280px) {
  .page-privacy .page-shell {
    grid-template-columns: 252px minmax(0, 1fr);
    gap: 68px;
  }
}

/* ---------- 降低动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-privacy .rail__link,
  .page-privacy .card,
  .page-privacy .doc-end__top,
  .page-privacy .breadcrumb__link {
    transition: none;
  }
}