.page-privacy {
  --pp-rail: 224px;
  --pp-maxw: 62ch;
}

.page-privacy .privacy-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(36px, 6vw, 78px) 0 clamp(26px, 4vw, 46px);
  border-bottom: 1px solid var(--line);
}

.page-privacy .privacy-hero::before {
  content: "";
  position: absolute;
  top: -28%;
  right: -12%;
  width: min(62vw, 640px);
  height: 150%;
  background: linear-gradient(152deg, rgba(16, 191, 108, 0.17), rgba(16, 191, 108, 0) 64%);
  clip-path: polygon(30% 0, 100% 0, 100% 100%, 0 74%);
  pointer-events: none;
}

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

.page-privacy .privacy-title {
  margin: 14px 0 0;
  max-width: 20ch;
  font-size: clamp(30px, 5.4vw, 54px);
  line-height: 1.16;
  letter-spacing: -0.02em;
}

.page-privacy .privacy-lead {
  max-width: var(--pp-maxw);
  margin: 20px 0 0;
  color: var(--paper-050);
}

.page-privacy .privacy-stamp {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: var(--fs-12);
}

.page-privacy .privacy-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: 26px;
  padding-top: clamp(30px, 5vw, 56px);
}

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

/* ---- 章节索引 ---- */
.page-privacy .privacy-rail {
  align-self: start;
  position: relative;
}

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

.page-privacy .privacy-rail__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-privacy .privacy-rail__list a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: var(--fs-14);
  line-height: 1.3;
  text-decoration: none;
  white-space: nowrap;
  transition: color 140ms var(--ease), border-color 140ms var(--ease), background-color 140ms var(--ease);
}

.page-privacy .privacy-rail__list .mono {
  color: var(--brand);
  font-size: var(--fs-12);
}

.page-privacy .privacy-rail__list a:hover,
.page-privacy .privacy-rail__list a:focus-visible {
  color: var(--paper-050);
  border-color: var(--brand);
  background: rgba(16, 191, 108, 0.1);
}

/* ---- 正文章节 ---- */
.page-privacy .privacy-sec {
  margin-top: 44px;
  padding-top: 30px;
  border-top: 1px solid var(--line);
}

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

.page-privacy .privacy-sec__head {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

.page-privacy .privacy-sec__num {
  flex: none;
  color: var(--brand);
  font-size: var(--fs-14);
  letter-spacing: 0.08em;
}

.page-privacy .privacy-sec__title {
  margin: 0;
  font-size: clamp(21px, 3vw, 28px);
  line-height: 1.35;
  font-weight: 700;
}

.page-privacy .privacy-sec__title::after {
  content: "";
  display: block;
  width: 48px;
  height: 3px;
  margin-top: 12px;
  border-radius: 2px;
  background: var(--brand);
}

.page-privacy .privacy-sec__intro {
  max-width: var(--pp-maxw);
  margin: 18px 0 0;
  line-height: 1.75;
}

/* ---- 要点列表 ---- */
.page-privacy .privacy-points {
  counter-reset: pp-point;
  display: grid;
  gap: 18px;
  margin: 24px 0 0;
  padding: 0;
  list-style: none;
}

.page-privacy .privacy-points > li {
  counter-increment: pp-point;
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.page-privacy .privacy-points > li::before {
  content: counter(pp-point, decimal-leading-zero);
  padding-top: 2px;
  color: var(--brand);
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: var(--fs-14);
  letter-spacing: 0.04em;
}

.page-privacy .privacy-points__title {
  margin: 0 0 7px;
  font-size: var(--fs-16);
  line-height: 1.5;
  font-weight: 700;
}

.page-privacy .privacy-points > li p {
  max-width: var(--pp-maxw);
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

/* ---- 配图 ---- */
.page-privacy .privacy-figure {
  margin: 28px 0 0;
}

.page-privacy .privacy-figure .media-frame__caption {
  color: var(--muted);
  font-size: var(--fs-12);
  line-height: 1.7;
}

/* ---- 折叠问答 ---- */
.page-privacy .privacy-details {
  margin-top: 26px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  overflow: hidden;
}

.page-privacy .privacy-details > summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 15px 18px;
  color: var(--paper-050);
  font-size: var(--fs-16);
  font-weight: 700;
  cursor: pointer;
  list-style: none;
}

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

.page-privacy .privacy-details > summary::before {
  content: "+";
  flex: none;
  width: 16px;
  color: var(--brand);
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: var(--fs-20);
  line-height: 1;
}

.page-privacy .privacy-details[open] > summary::before {
  content: "–";
}

.page-privacy .privacy-details__body {
  padding: 0 18px 16px 44px;
}

.page-privacy .privacy-details__body p {
  max-width: var(--pp-maxw);
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

/* ---- 联系方式 ---- */
.page-privacy .privacy-contact {
  margin-top: 24px;
  padding: clamp(20px, 3vw, 26px);
}

.page-privacy .privacy-contact__list {
  display: grid;
  gap: 16px;
  margin: 0;
}

.page-privacy .privacy-contact__list dt {
  margin-bottom: 6px;
  color: var(--muted);
  font-size: var(--fs-12);
  letter-spacing: 0.08em;
}

.page-privacy .privacy-contact__list dd {
  margin: 0;
  font-size: var(--fs-16);
  line-height: 1.6;
  overflow-wrap: anywhere;
}

.page-privacy .privacy-contact__list dd.mono {
  color: var(--paper-050);
}

.page-privacy .privacy-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.page-privacy .privacy-endnote {
  max-width: var(--pp-maxw);
  margin: 34px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: var(--fs-14);
  line-height: 1.8;
}

.page-privacy .privacy-endnote a {
  color: var(--green-300);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-privacy a:focus-visible,
.page-privacy summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

@media (min-width: 620px) {
  .page-privacy .privacy-contact__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-privacy .privacy-body {
    grid-template-columns: var(--pp-rail) minmax(0, 1fr);
    gap: clamp(34px, 5vw, 72px);
    padding-bottom: 24px;
  }

  .page-privacy .privacy-rail {
    position: sticky;
    top: 104px;
    padding-left: 20px;
  }

  .page-privacy .privacy-rail::before {
    content: "";
    position: absolute;
    left: 0;
    top: 2px;
    bottom: 2px;
    width: 2px;
    border-radius: 2px;
    background: linear-gradient(180deg, var(--green-500), var(--green-300) 38%, var(--line) 100%);
  }

  .page-privacy .privacy-rail__list {
    flex-direction: column;
    gap: 0;
    padding-bottom: 0;
    overflow: visible;
  }

  .page-privacy .privacy-rail__list a {
    padding: 9px 0;
    border: 0;
    border-radius: 0;
    white-space: normal;
    line-height: 1.5;
  }

  .page-privacy .privacy-rail__list a:hover,
  .page-privacy .privacy-rail__list a:focus-visible {
    background: transparent;
    color: var(--green-300);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-rail__list a {
    transition: none;
  }
}