/* ==========================================================
   page-privacy · 隐私声明
   单栏长文：左侧固定目录 + 右侧条款正文
   ========================================================== */

.page-privacy {
  --pp-gap: clamp(1.15rem, 3.6vw, 2.2rem);
  --pp-pad-x: clamp(1.05rem, 3vw, 2.05rem);
  background: var(--paper);
  color: var(--ink);
}

/* ---------- 首屏 ---------- */

.page-privacy .privacy-hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line-2);
  background:
    radial-gradient(132% 92% at 88% -22%, rgba(127, 168, 166, .32), rgba(127, 168, 166, 0) 62%),
    linear-gradient(180deg, var(--paper) 0%, var(--paper-2) 100%);
}

.page-privacy .privacy-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--brass) 0%, var(--tide) 42%, transparent 100%);
  opacity: .7;
}

.page-privacy .privacy-hero__inner {
  display: grid;
  gap: clamp(1.1rem, 2.6vw, 1.85rem);
  padding: clamp(1.85rem, 5vw, 3.15rem) 0 clamp(2rem, 4.5vw, 3rem);
}

.page-privacy .privacy-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.3rem, 7.6vw, 4.3rem);
  line-height: 1.04;
  letter-spacing: .012em;
  color: var(--ink-2);
}

.page-privacy .privacy-hero__title::after {
  content: "";
  display: block;
  width: 3.1rem;
  height: 4px;
  margin-top: 1rem;
  background: linear-gradient(90deg, var(--brass), var(--seal));
}

.page-privacy .privacy-hero__lede {
  margin: 0;
  max-width: 64ch;
  font-size: clamp(1rem, 1.45vw, 1.125rem);
  line-height: 1.88;
  color: var(--ink-2);
}

.page-privacy .privacy-hero__fig {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  background: linear-gradient(140deg, var(--paper-3), var(--tide));
  box-shadow: var(--shadow-lift);
}

.page-privacy .privacy-hero__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-privacy .privacy-hero__figcap {
  display: block;
  padding: .68rem 1rem;
  background: var(--ink-2);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .05em;
  line-height: 1.5;
}

/* 首屏要点四格 */

.page-privacy .privacy-facts {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  background: var(--line-2);
}

.page-privacy .privacy-facts__item {
  display: grid;
  align-content: start;
  gap: .38rem;
  padding: 1.05rem 1.15rem 1.2rem;
  background: var(--paper);
}

.page-privacy .privacy-facts__k {
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .16em;
  color: var(--brass);
  text-transform: uppercase;
}

.page-privacy .privacy-facts__v {
  font-size: .9375rem;
  line-height: 1.65;
  color: var(--ink-2);
}

/* ---------- 主体两栏 ---------- */

.page-privacy .privacy-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pp-gap);
  padding: clamp(2rem, 5vw, 3.4rem) 0 clamp(3rem, 6vw, 4.6rem);
}

/* 目录 */

.page-privacy .privacy-toc {
  padding: 1.05rem 1.1rem 1.2rem;
  border: 1px solid var(--line-2);
  border-top: 3px solid var(--brass);
  border-radius: var(--radius);
  background: var(--paper-2);
  box-shadow: var(--shadow);
}

.page-privacy .privacy-toc .eyebrow {
  margin: 0;
}

.page-privacy .privacy-toc__list {
  display: grid;
  gap: .1rem;
  margin: .7rem 0 0;
  padding: 0;
  list-style: none;
}

.page-privacy .privacy-toc__link {
  display: flex;
  align-items: baseline;
  gap: .55rem;
  padding: .52rem .5rem;
  border-left: 2px solid transparent;
  border-radius: var(--radius);
  color: var(--ink-2);
  font-size: .875rem;
  line-height: 1.45;
  text-decoration: none;
  transition: background .25s var(--ease), border-color .25s var(--ease), color .25s var(--ease);
}

.page-privacy .privacy-toc__link:hover,
.page-privacy .privacy-toc__link:focus-visible {
  border-left-color: var(--seal);
  background: var(--paper);
  color: var(--ink);
}

.page-privacy .privacy-toc__n {
  flex: none;
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--stone);
}

/* ---------- 条款正文 ---------- */

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

.page-privacy .clause {
  position: relative;
  z-index: 0;
  padding: clamp(1.35rem, 3vw, 2.1rem) var(--pp-pad-x);
  border: 1px solid var(--line-2);
  border-left: 3px solid var(--tide);
  border-radius: var(--radius);
  background: var(--paper);
  box-shadow: var(--shadow);
}

.page-privacy .clause + .clause {
  margin-top: clamp(1.05rem, 2.4vw, 1.6rem);
}

.page-privacy .clause .section__index {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: .8125rem;
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--brass);
  transition: color .35s var(--ease);
}

.page-privacy .clause.is-active .section__index {
  color: var(--seal);
}

.page-privacy .clause__title {
  margin: .3rem 0 .9rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.28rem, 2.4vw, 1.6rem);
  line-height: 1.36;
  color: var(--ink-2);
}

.page-privacy .clause p {
  margin: 0 0 .95rem;
  font-size: .9688rem;
  line-height: 1.86;
  color: var(--ink);
}

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

.page-privacy .clause ul {
  display: grid;
  gap: .42rem;
  margin: 0 0 1rem;
  padding-left: 1.1rem;
}

.page-privacy .clause li {
  font-size: .9375rem;
  line-height: 1.75;
  color: var(--ink);
}

.page-privacy .clause li::marker {
  color: var(--tide);
}

.page-privacy .clause a {
  color: var(--seal-deep);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color .25s var(--ease);
}

.page-privacy .clause a:hover,
.page-privacy .clause a:focus-visible {
  color: var(--seal);
}

/* ---------- 折叠条款 ---------- */

.page-privacy .fold {
  margin-top: 1.05rem;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper-2);
}

.page-privacy .fold__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: .82rem 1rem;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-mono);
  font-size: .8125rem;
  letter-spacing: .05em;
  color: var(--ink-2);
}

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

.page-privacy .fold__head::after {
  content: "+";
  flex: none;
  font-size: 1rem;
  color: var(--brass);
  transition: transform .3s var(--ease);
}

.page-privacy .fold[open] .fold__head::after {
  content: "–";
  color: var(--seal);
}

.page-privacy .fold__body {
  padding: 0 1rem 1rem;
  border-top: 1px dashed var(--line);
  background: var(--paper);
}

.page-privacy .fold__body > *:first-child {
  margin-top: .9rem;
}

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

/* ---------- 信息处理流程（横向编号） ---------- */

.page-privacy .privacy-flow {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: .6rem;
  margin: 1.15rem 0 0;
  padding: 0;
  list-style: none;
}

.page-privacy .privacy-flow__step {
  display: grid;
  align-content: start;
  gap: .3rem;
  padding: .85rem .9rem 1rem;
  border: 1px solid var(--line-2);
  border-top: 2px solid var(--amber);
  border-radius: var(--radius);
  background: var(--paper-2);
}

.page-privacy .privacy-flow__n {
  font-family: var(--font-mono);
  font-size: .6875rem;
  letter-spacing: .16em;
  color: var(--stone);
}

.page-privacy .privacy-flow__t {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink-2);
  line-height: 1.4;
}

.page-privacy .privacy-flow__d {
  font-size: .8438rem;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- 回到顶部 ---------- */

.page-privacy .to-top {
  position: fixed;
  right: clamp(1rem, 3vw, 2rem);
  bottom: clamp(1rem, 3vw, 2rem);
  z-index: 40;
  padding: .58rem .9rem;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  background: var(--ink-2);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: .75rem;
  letter-spacing: .08em;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity .3s var(--ease), transform .3s var(--ease), visibility .3s;
}

.page-privacy .to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.page-privacy .to-top:hover,
.page-privacy .to-top:focus-visible {
  background: var(--seal);
}

/* ---------- 响应式 ---------- */

@media (min-width: 620px) {
  .page-privacy .privacy-facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (min-width: 1020px) {
  .page-privacy .privacy-facts {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-privacy .privacy-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    gap: clamp(2.4rem, 5vw, 4.5rem);
  }

  .page-privacy .privacy-toc {
    position: sticky;
    top: calc(var(--header-h) + 1.25rem);
    align-self: start;
  }

  .page-privacy .clause::before {
    content: "";
    position: absolute;
    inset: 7px -7px -7px 7px;
    z-index: -1;
    border: 1px solid var(--line-2);
    border-radius: var(--radius);
    background: var(--paper-3);
  }
}

@media (min-width: 1180px) {
  .page-privacy .privacy-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .clause .section__index,
  .page-privacy .privacy-toc__link,
  .page-privacy .clause a,
  .page-privacy .to-top,
  .page-privacy .fold__head::after {
    transition: none;
  }
}
</main>

/* 占位：实际样式已在上方 PAGE_CSS 标记内输出 */