.page-privacy {
  --privacy-rail: 176px;
}

/* ---------- 顶部上下文 ---------- */
.page-privacy .privacy-top {
  padding: 22px 20px 0;
}

/* ---------- 首屏 ---------- */
.page-privacy .privacy-hero {
  position: relative;
  overflow: hidden;
  padding: 18px 20px 4px;
}

.page-privacy .privacy-hero::before {
  content: "";
  position: absolute;
  top: -70px;
  right: -90px;
  width: 260px;
  height: 260px;
  background: linear-gradient(140deg, rgba(53, 240, 214, 0.34), rgba(53, 240, 214, 0));
  clip-path: polygon(18% 0, 100% 0, 100% 78%, 0 100%);
  pointer-events: none;
}

.page-privacy .privacy-hero::after {
  content: "";
  position: absolute;
  bottom: -60px;
  left: -70px;
  width: 220px;
  height: 170px;
  background: rgba(124, 92, 255, 0.2);
  clip-path: polygon(0 0, 76% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-privacy .privacy-hero > * {
  position: relative;
  z-index: 1;
}

.page-privacy .privacy-hero h1 {
  margin: 10px 0 14px;
  font-family: var(--font-head);
  font-size: clamp(34px, 9vw, 58px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--text);
}

.page-privacy .privacy-hero__lede {
  max-width: 34em;
  margin: 0;
  font-size: 17px;
  line-height: 1.85;
  color: var(--muted);
}

.page-privacy .privacy-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-privacy .privacy-hero__media {
  margin: 24px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel);
}

.page-privacy .privacy-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 文档骨架 ---------- */
.page-privacy .privacy-doc {
  padding: 30px 20px 72px;
}

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

/* ---------- 小节索引 ---------- */
.page-privacy .privacy-index {
  margin: 0 0 26px;
}

.page-privacy .privacy-index__title {
  margin: 0 0 10px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
  text-transform: uppercase;
}

.page-privacy .privacy-index__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-privacy .privacy-index__link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  font-size: 14px;
  color: var(--muted);
  text-decoration: none;
  border-left: 3px solid transparent;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: rgba(22, 33, 58, 0.45);
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.page-privacy .privacy-index__num {
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--violet);
}

.page-privacy .privacy-index__link:hover,
.page-privacy .privacy-index__link:focus-visible {
  color: var(--text);
  border-left-color: var(--violet);
  background: rgba(124, 92, 255, 0.14);
}

.page-privacy .privacy-index__link[aria-current="true"] {
  color: var(--neon);
  border-left-color: var(--neon);
  background: rgba(53, 240, 214, 0.1);
}

.page-privacy .privacy-index__link[aria-current="true"] .privacy-index__num {
  color: var(--neon);
}

.page-privacy .privacy-index__top {
  display: inline-block;
  margin-top: 14px;
  padding: 7px 14px;
  font-size: 13px;
  color: var(--neon);
  text-decoration: none;
  border: 1px solid var(--neon);
  border-radius: 999px;
  background: transparent;
  transition: background-color 0.18s ease, color 0.18s ease;
}

.page-privacy .privacy-index__top:hover,
.page-privacy .privacy-index__top:focus-visible {
  background: rgba(53, 240, 214, 0.14);
}

/* ---------- 段落 ---------- */
.page-privacy .doc-section {
  padding: 30px 0;
  border-top: 1px solid var(--line);
}

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

.page-privacy .doc-section h2 {
  margin: 6px 0 14px;
  font-family: var(--font-head);
  font-size: clamp(24px, 5.4vw, 30px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--text);
}

.page-privacy .doc-lede {
  max-width: 34em;
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: var(--muted);
}

.page-privacy .doc-note {
  max-width: 34em;
  margin: 20px 0 0;
  padding-left: 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
  border-left: 3px solid var(--violet);
}

.page-privacy .doc-section a {
  color: var(--neon);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 214, 0.4);
  transition: border-color 0.18s ease, color 0.18s ease;
}

.page-privacy .doc-section a:hover,
.page-privacy .doc-section a:focus-visible {
  color: var(--text);
  border-bottom-color: var(--text);
}

/* ---------- 数据条目 ---------- */
.page-privacy .data-list {
  display: grid;
  gap: 12px;
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-privacy .data-item {
  position: relative;
  padding: 18px 16px 16px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  transition: border-color 0.18s ease, transform 0.18s ease;
}

.page-privacy .data-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 16px;
  width: 44px;
  height: 3px;
  background: var(--neon);
  border-radius: 0 0 3px 3px;
}

.page-privacy .data-item:nth-child(2)::before {
  background: var(--violet);
}

.page-privacy .data-item:nth-child(4)::before {
  background: var(--orange);
}

.page-privacy .data-item:hover {
  border-color: var(--neon);
  transform: translateY(-2px);
}

.page-privacy .data-item__num {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--neon);
}

.page-privacy .data-item__title {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: 17px;
  color: var(--text);
}

.page-privacy .data-item__desc {
  max-width: 34em;
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 用途对照 ---------- */
.page-privacy .use-list {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
}

.page-privacy .use-row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px dashed var(--line);
}

.page-privacy .use-row:last-child {
  border-bottom: 0;
}

.page-privacy .use-row__key {
  font-family: var(--font-head);
  font-size: 16px;
  color: var(--violet);
  letter-spacing: 0.01em;
}

.page-privacy .use-row__val {
  max-width: 34em;
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 保存期限 ---------- */
.page-privacy .retention-grid {
  display: grid;
  gap: 12px;
  margin: 20px 0 0;
}

.page-privacy .retention-card {
  padding: 16px 18px;
  background: var(--panel-high);
  border-left: 3px solid var(--violet);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.page-privacy .retention-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: 16px;
  color: var(--text);
}

.page-privacy .retention-card p {
  max-width: 34em;
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 第三方共享 ---------- */
.page-privacy .share-grid {
  display: grid;
  gap: 12px;
  margin: 20px 0 0;
}

.page-privacy .share-card {
  padding: 18px 16px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-top: 3px solid var(--neon);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}

.page-privacy .share-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-size: 16px;
  color: var(--text);
}

.page-privacy .share-card p {
  max-width: 34em;
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 操作路径小牌 ---------- */
.page-privacy .path-list {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.page-privacy .path-card {
  background: rgba(22, 33, 58, 0.5);
  border: 1px dashed var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  transition: border-color 0.18s ease;
}

.page-privacy .path-card:hover {
  border-color: var(--violet);
}

.page-privacy .path-card[open] {
  border-style: solid;
  border-color: var(--neon);
}

.page-privacy .path-summary {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  list-style: none;
  color: var(--text);
}

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

.page-privacy .path-summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-num);
  font-size: 18px;
  line-height: 1;
  color: var(--neon);
}

.page-privacy .path-card[open] .path-summary::after {
  content: "\2212";
}

.page-privacy .path-card[open] .path-summary {
  border-bottom: 1px solid var(--line);
}

.page-privacy .path-num {
  flex: none;
  padding: 2px 8px;
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--orange);
  border: 1px solid rgba(255, 138, 61, 0.45);
  border-radius: 6px;
}

.page-privacy .path-label {
  font-family: var(--font-head);
  font-size: 16px;
}

.page-privacy .path-hint {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.page-privacy .path-body {
  padding: 14px 16px 16px;
}

.page-privacy .path-body p {
  max-width: 34em;
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

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

/* ---------- 联系面板 ---------- */
.page-privacy .reach-panel {
  margin-top: 22px;
  padding: 8px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-high);
}

.page-privacy .reach-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-privacy .reach-row:last-child {
  border-bottom: 0;
}

.page-privacy .reach-label {
  flex: none;
  min-width: 72px;
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.page-privacy .reach-value {
  font-family: var(--font-num);
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--text);
  word-break: break-all;
}

.page-privacy .reach-row .copy-btn {
  margin-left: auto;
}

/* ---------- 显现 ---------- */
.page-privacy [data-reveal] {
  opacity: 0;
  transition: opacity 0.12s linear;
}

.page-privacy [data-reveal].is-visible {
  opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy [data-reveal] {
    opacity: 1;
    transition: none;
  }
  .page-privacy .data-item:hover {
    transform: none;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 720px) {
  .page-privacy .data-list,
  .page-privacy .retention-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-privacy .use-row {
    grid-template-columns: 170px minmax(0, 1fr);
    gap: 28px;
    align-items: baseline;
  }
}

@media (min-width: 900px) {
  .page-privacy .privacy-top,
  .page-privacy .privacy-hero,
  .page-privacy .privacy-doc {
    max-width: 1120px;
    margin-left: auto;
    margin-right: auto;
  }

  .page-privacy .privacy-top {
    padding: 30px 40px 0;
  }

  .page-privacy .privacy-hero {
    padding: 20px 40px 4px;
  }

  .page-privacy .privacy-hero h1 {
    max-width: 16em;
  }

  .page-privacy .privacy-doc {
    display: grid;
    grid-template-columns: var(--privacy-rail) minmax(0, 1fr);
    gap: 64px;
    padding: 42px 40px 96px;
  }

  .page-privacy .privacy-index {
    position: sticky;
    top: 28px;
    align-self: start;
    margin-bottom: 0;
  }

  .page-privacy .privacy-index__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 2px;
  }

  .page-privacy .privacy-index__link {
    background: transparent;
    padding: 9px 12px;
  }

  .page-privacy .privacy-body {
    max-width: 660px;
  }

  .page-privacy .doc-section {
    padding: 38px 0;
  }
}