/* ===== 隐私中心 page-privacy ===== */
.page-privacy {
  --clause-pad-x: clamp(14px, 2.2vw, 26px);
  --clause-pad-y: clamp(18px, 2.4vw, 30px);
  padding-top: var(--head-h);
}

/* ---- 页面头部 ---- */
.page-privacy .privacy-hero {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  border-bottom: 1px solid var(--grid);
  padding: clamp(40px, 6vw, 84px) 0 clamp(34px, 4.6vw, 60px);
}

.page-privacy .privacy-hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .26;
  pointer-events: none;
  z-index: 0;
}

.page-privacy .privacy-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(104deg, rgba(8, 14, 31, .96) 0%, rgba(8, 14, 31, .8) 46%, rgba(8, 14, 31, .42) 100%),
    linear-gradient(180deg, rgba(8, 14, 31, 0) 42%, rgba(8, 14, 31, .88) 100%);
}

.page-privacy .privacy-hero__inner {
  position: relative;
  z-index: 2;
}

.page-privacy .privacy-hero h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 5.4vw, 60px);
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--paper);
  margin: 14px 0 0;
  max-width: 20ch;
}

.page-privacy .privacy-hero__lede {
  margin: 20px 0 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--body-text);
}

.page-privacy .privacy-hero__facts {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 14px 40px;
  list-style: none;
  margin: 32px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--grid);
}

.page-privacy .privacy-hero__facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-privacy .privacy-hero__fact-num {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -.01em;
  color: var(--signal);
}

.page-privacy .privacy-hero__fact-label {
  font-size: 12.5px;
  letter-spacing: .08em;
  color: var(--mute);
}

/* ---- 主体两栏 ---- */
.page-privacy .privacy-body {
  padding-top: clamp(36px, 5.4vw, 68px);
  padding-bottom: clamp(52px, 7.5vw, 100px);
}

.page-privacy .privacy-layout {
  row-gap: 40px;
}

.page-privacy .privacy-article {
  display: flex;
  flex-direction: column;
  gap: clamp(6px, 1.4vw, 16px);
  min-width: 0;
}

/* ---- 条款段 ---- */
.page-privacy .clause {
  position: relative;
  padding: var(--clause-pad-y) var(--clause-pad-x) var(--clause-pad-y) var(--clause-pad-x);
  margin-left: calc(-1 * var(--clause-pad-x));
  border-left: 2px solid transparent;
  scroll-margin-top: calc(var(--head-h) + 24px);
  transition: background var(--t-hover) var(--ease), border-left-color var(--t-hover) var(--ease);
}

.page-privacy .clause:hover {
  background: rgba(30, 42, 70, .38);
  border-left-color: var(--amber);
}

.page-privacy .clause__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 12px;
}

.page-privacy .clause__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: .18em;
  color: var(--amber);
}

.page-privacy .clause__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(21px, 2.5vw, 31px);
  line-height: 1.22;
  letter-spacing: -.01em;
  color: var(--paper);
  margin: 0;
}

.page-privacy .clause__summary {
  margin: 0 0 20px;
  max-width: 60ch;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.7;
  color: var(--paper);
}

.page-privacy .clause__body {
  font-size: 15.5px;
  line-height: 1.78;
  color: var(--body-text);
}

.page-privacy .clause__body p {
  margin: 0 0 14px;
  max-width: 62ch;
}

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

.page-privacy .clause__sub {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 24px 0 8px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--paper);
}

.page-privacy .clause__sub::before {
  content: "";
  flex: none;
  width: 13px;
  height: 1px;
  background: var(--cyan);
}

.page-privacy .clause__head + .clause__summary + .clause__body > .clause__sub:first-child {
  margin-top: 0;
}

.page-privacy .clause__body a {
  color: var(--signal);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 240, 180, .38);
  transition: border-bottom-color var(--t-hover) var(--ease);
}

.page-privacy .clause__body a:hover {
  border-bottom-color: var(--signal);
}

/* ---- 列表 ---- */
.page-privacy .clause__list {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
  display: grid;
  gap: 12px;
  max-width: 62ch;
}

.page-privacy .clause__list li {
  position: relative;
  padding-left: 20px;
  color: var(--body-text);
}

.page-privacy .clause__list li::before {
  content: "";
  position: absolute;
  left: 1px;
  top: .74em;
  width: 6px;
  height: 6px;
  border: 1px solid var(--cyan);
  transform: rotate(45deg);
}

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

/* ---- 展开细节 ---- */
.page-privacy .clause__more {
  margin-top: 22px;
  padding-top: 14px;
  border-top: 1px solid var(--grid);
}

.page-privacy .clause__more summary {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  cursor: pointer;
  list-style: none;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--cyan);
  transition: color var(--t-hover) var(--ease);
}

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

.page-privacy .clause__more summary::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--amber);
  transition: transform var(--t-hover) var(--ease);
}

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

.page-privacy .clause__more summary:hover {
  color: var(--signal);
}

.page-privacy .clause__more p {
  margin-top: 14px;
}

/* ---- 段末补充行 ---- */
.page-privacy .clause__foot {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--grid);
  font-size: 14.5px;
  color: var(--mute);
}

/* ---- 右栏粘性目录 ---- */
.page-privacy .privacy-aside {
  align-self: start;
  min-width: 0;
}

.page-privacy .privacy-toc {
  position: sticky;
  top: calc(var(--head-h) + 28px);
  padding-left: 18px;
  border-left: 1px solid var(--grid);
}

.page-privacy .privacy-toc__title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--mute);
}

.page-privacy .privacy-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-privacy .privacy-toc__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 0;
  font-size: 13.5px;
  line-height: 1.45;
  color: var(--mute);
  text-decoration: none;
  transition: color var(--t-hover) var(--ease), padding-left var(--t-hover) var(--ease);
}

.page-privacy .privacy-toc__link .num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--cyan);
  transition: color var(--t-hover) var(--ease);
}

.page-privacy .privacy-toc__link:hover {
  color: var(--paper);
  padding-left: 6px;
}

.page-privacy .privacy-toc__link:hover .num {
  color: var(--amber);
}

/* ---- 焦点态 ---- */
.page-privacy a:focus-visible,
.page-privacy summary:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
  border-radius: 2px;
}

/* ---- 桌面网格对齐 ---- */
@media (min-width: 901px) {
  .page-privacy .privacy-layout {
    align-items: start;
    column-gap: clamp(36px, 5vw, 76px);
  }
}

/* ---- 窄屏 ---- */
@media (max-width: 900px) {
  .page-privacy .privacy-toc {
    position: static;
    border-left: 0;
    border-top: 1px solid var(--grid);
    padding-left: 0;
    padding-top: 18px;
  }

  .page-privacy .privacy-toc__list {
    grid-auto-flow: column;
    grid-auto-columns: max-content;
    gap: 10px;
    overflow-x: auto;
    overscroll-behavior-x: contain;
    padding-bottom: 6px;
    scrollbar-width: thin;
  }

  .page-privacy .privacy-toc__link {
    padding: 8px 14px;
    border: 1px solid var(--grid);
    border-radius: var(--radius-pod);
    white-space: nowrap;
    font-size: 13px;
  }

  .page-privacy .privacy-toc__link:hover {
    padding-left: 14px;
    border-color: var(--cyan);
  }
}

@media (max-width: 640px) {
  .page-privacy .privacy-hero__facts {
    gap: 12px 26px;
  }

  .page-privacy .privacy-hero__fact-num {
    font-size: 17px;
  }

  .page-privacy .clause {
    margin-left: 0;
    padding-left: 0;
    padding-right: 0;
    border-left: 0;
    border-top: 1px solid var(--grid);
    padding-top: 24px;
  }

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

  .page-privacy .clause:hover {
    background: transparent;
    border-left-color: transparent;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .clause,
  .page-privacy .clause__body a,
  .page-privacy .privacy-toc__link,
  .page-privacy .privacy-toc__link .num,
  .page-privacy .clause__more summary {
    transition: none;
  }
}