/* ================= 数据与隐私页 ================= */

.page-privacy {
  --privacy-read: 66ch;
  --privacy-index-w: 224px;
}

/* ---------- 首屏 ---------- */

.page-privacy .privacy-hero {
  padding: clamp(26px, 5vw, 56px) 0 0;
}

.page-privacy .privacy-hero .display-1 {
  margin: 14px 0 0;
  max-width: 20ch;
  text-wrap: balance;
}

.page-privacy .privacy-hero .lede {
  margin: 20px 0 0;
  max-width: 62ch;
}

.page-privacy .privacy-ledger {
  list-style: none;
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-privacy .privacy-ledger li {
  background: var(--panel);
  padding: 18px 20px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--gray-green);
}

.page-privacy .privacy-ledger strong {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--cyan);
}

/* ---------- 顶部通栏图 ---------- */

.page-privacy .privacy-figure {
  margin: clamp(30px, 5vw, 52px) 0 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
  background: var(--deep);
}

.page-privacy .privacy-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: clamp(170px, 34vw, 330px);
  object-fit: cover;
  object-position: center;
  opacity: 0.86;
}

/* ---------- 主体网格 ---------- */

.page-privacy .privacy-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 44px);
  padding: clamp(34px, 6vw, 72px) 0 clamp(40px, 7vw, 84px);
}

/* ---------- 章节索引 ---------- */

.page-privacy .privacy-index {
  border-top: 1px solid var(--line);
  padding-top: 16px;
  min-width: 0;
}

.page-privacy .privacy-index__label {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--gray-green);
}

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

.page-privacy .privacy-index__link {
  display: flex;
  align-items: baseline;
  gap: 9px;
  padding: 7px 11px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-size: 13.5px;
  line-height: 1.5;
  color: var(--gray-green);
  text-decoration: none;
  transition: color 0.22s var(--ease), border-color 0.22s var(--ease),
    background-color 0.22s var(--ease);
}

.page-privacy .privacy-index__num {
  font-size: 11px;
  color: var(--cyan);
  letter-spacing: 0.04em;
}

.page-privacy .privacy-index__link:hover {
  color: var(--cream);
  border-color: var(--line-strong);
  background: var(--panel);
}

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

/* ---------- 折叠章节 ---------- */

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

.page-privacy .privacy-fold {
  border-top: 1px solid var(--line);
  scroll-margin-top: 90px;
}

.page-privacy .privacy-fold:last-of-type {
  border-bottom: 1px solid var(--line);
}

.page-privacy .privacy-fold__summary {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: clamp(20px, 3.4vw, 28px) 40px clamp(20px, 3.4vw, 28px) 0;
  cursor: pointer;
  list-style: none;
  transition: color 0.22s var(--ease);
}

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

.page-privacy .privacy-fold__summary::after {
  content: "";
  position: absolute;
  right: 8px;
  top: 50%;
  width: 9px;
  height: 9px;
  margin-top: -7px;
  border-right: 1.5px solid var(--cyan);
  border-bottom: 1.5px solid var(--cyan);
  transform: rotate(45deg);
  transition: transform 0.26s var(--ease), margin-top 0.26s var(--ease);
}

.page-privacy .privacy-fold[open] .privacy-fold__summary::after {
  transform: rotate(-135deg);
  margin-top: -2px;
}

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

.page-privacy .privacy-fold__num {
  flex: none;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  padding-top: 5px;
}

.page-privacy .privacy-fold__title {
  font-family: var(--font-display);
  font-size: clamp(1.14rem, 2.6vw, 1.55rem);
  font-weight: 700;
  line-height: 1.34;
  letter-spacing: 0.01em;
  color: var(--cream);
}

.page-privacy .privacy-fold__body {
  padding: 0 0 clamp(24px, 4vw, 34px);
  max-width: var(--privacy-read);
}

.page-privacy .privacy-fold__body > p:first-child {
  margin-top: 0;
}

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

/* ---------- 小节标题 ---------- */

.page-privacy .privacy-sub {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 26px 0 10px;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--cream);
}

.page-privacy .privacy-sub::before {
  content: "";
  flex: none;
  width: 18px;
  height: 1px;
  background: var(--cyan);
}

/* ---------- 条目列表 ---------- */

.page-privacy .privacy-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-privacy .privacy-list li {
  position: relative;
  padding-left: 20px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--cream);
}

.page-privacy .privacy-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.78em;
  width: 6px;
  height: 6px;
  border: 1px solid var(--cyan);
  border-radius: 1px;
  transform: rotate(45deg);
}

.page-privacy .privacy-list strong {
  color: var(--cyan);
  font-weight: 600;
}

/* ---------- 收尾引导 ---------- */

.page-privacy .privacy-ask {
  margin-top: clamp(34px, 6vw, 56px);
  border: 1px solid var(--line);
  border-left: 2px solid var(--cyan);
  border-radius: var(--radius);
  background: linear-gradient(140deg, var(--panel) 0%, var(--ink) 78%);
  padding: clamp(22px, 4vw, 34px);
}

.page-privacy .privacy-ask__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 3vw, 1.4rem);
  font-weight: 700;
  line-height: 1.35;
  color: var(--cream);
}

.page-privacy .privacy-ask__text {
  margin: 12px 0 0;
  max-width: 60ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--gray-green);
}

.page-privacy .privacy-ask__links {
  margin: 22px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 平板与桌面 ---------- */

@media (min-width: 700px) {
  .page-privacy .privacy-ledger {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-privacy .privacy-body {
    grid-template-columns: var(--privacy-index-w) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 72px);
  }

  .page-privacy .privacy-index {
    position: sticky;
    top: 28px;
    border-top-color: var(--line-strong);
    padding-top: 18px;
  }

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

  .page-privacy .privacy-index__link {
    border: 0;
    border-left: 2px solid var(--line);
    border-radius: 0;
    padding: 9px 12px;
    background: transparent;
  }

  .page-privacy .privacy-index__link:hover {
    border-left-color: var(--cyan);
    background: linear-gradient(90deg, rgba(111, 242, 206, 0.09), transparent 82%);
  }
}

@media (min-width: 1200px) {
  .page-privacy {
    --privacy-index-w: 248px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-fold__summary::after,
  .page-privacy .privacy-index__link {
    transition: none;
  }
}