.page-privacy {
  --pv-read: 680px;
  --pv-ink: #0A0B0D;
  --pv-ink-soft: rgba(10, 11, 13, 0.78);
  --pv-ink-dim: rgba(10, 11, 13, 0.58);
  --pv-hair: rgba(10, 11, 13, 0.14);
  background: var(--rb-black);
  color: var(--rb-ink);
  overflow-x: clip;
}

/* ---------- 页首 ---------- */
.page-privacy .privacy-hero {
  position: relative;
  padding-bottom: clamp(36px, 5vw, 64px);
}

.page-privacy .privacy-hero__media {
  --rb-media-ratio: 1400 / 520;
  margin: 0;
  width: 100%;
  max-height: 46vh;
  overflow: hidden;
  border-bottom: 2px solid var(--rb-red);
}

.page-privacy .privacy-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.9) contrast(1.06);
}

.page-privacy .privacy-hero__body {
  padding-top: clamp(30px, 4.5vw, 54px);
}

.page-privacy .privacy-crumb {
  margin-bottom: 18px;
  font-size: 12px;
  letter-spacing: 0.1em;
}

.page-privacy .privacy-hero__title {
  font-family: var(--rb-font-display);
  font-weight: 900;
  font-size: clamp(2rem, 5.8vw, 4.25rem);
  line-height: 1.03;
  letter-spacing: -0.02em;
  margin: 14px 0 0;
  max-width: 17ch;
  color: var(--rb-white);
}

.page-privacy .privacy-hero__lead {
  margin: clamp(18px, 2.6vw, 28px) 0 0;
  max-width: 38em;
  color: var(--rb-ink-soft);
  line-height: 1.85;
}

.page-privacy .privacy-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 20px;
  margin: clamp(20px, 3vw, 30px) 0 0;
  font-family: var(--rb-font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--rb-ink-dim);
}

.page-privacy .privacy-hero__meta .rb-num {
  color: var(--rb-yellow);
}

/* ---------- 浮层锚点目录 ---------- */
.page-privacy .privacy-toc {
  position: sticky;
  top: var(--rb-header-space);
  z-index: 6;
  background: rgba(10, 11, 13, 0.94);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--rb-line);
  border-bottom: 1px solid var(--rb-line);
}

.page-privacy .privacy-toc__inner {
  padding-block: 8px;
}

/* 窄屏：收纳为下拉 */
.page-privacy .privacy-toc__drop {
  display: block;
}

.page-privacy .privacy-toc__summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0;
  cursor: pointer;
  list-style: none;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--rb-ink);
}

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

.page-privacy .privacy-toc__summary .rb-num {
  font-family: var(--rb-font-mono);
  font-size: 12px;
  color: var(--rb-blue);
  margin-right: 10px;
}

.page-privacy .privacy-toc__summary::after {
  content: "";
  flex: none;
  width: 8px;
  height: 8px;
  margin-left: auto;
  border-right: 1.5px solid var(--rb-yellow);
  border-bottom: 1.5px solid var(--rb-yellow);
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform var(--rb-dur) var(--rb-ease);
}

.page-privacy .privacy-toc__drop[open] .privacy-toc__summary::after {
  transform: rotate(-135deg) translate(-2px, 2px);
}

.page-privacy .privacy-toc__drop-list {
  list-style: none;
  margin: 4px 0 6px;
  padding: 0;
  display: grid;
  gap: 2px;
}

.page-privacy .privacy-toc__drop-list a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  font-size: 14px;
  text-decoration: none;
  color: var(--rb-ink-soft);
  background: var(--rb-panel);
  border-left: 2px solid transparent;
  transition: color var(--rb-dur) var(--rb-ease), border-color var(--rb-dur) var(--rb-ease);
}

.page-privacy .privacy-toc__drop-list a:hover,
.page-privacy .privacy-toc__drop-list a:focus-visible {
  color: var(--rb-white);
  border-left-color: var(--rb-red);
}

.page-privacy .privacy-toc__drop-list .rb-num {
  font-family: var(--rb-font-mono);
  font-size: 12px;
  color: var(--rb-blue);
}

/* 宽屏：横向刻度条 */
.page-privacy .privacy-toc__list {
  display: none;
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-privacy .privacy-toc__inner:has(.privacy-toc__drop) {
  padding-block: 8px;
}

@media (min-width: 900px) {
  .page-privacy .privacy-toc__inner {
    padding-block: 12px;
  }

  .page-privacy .privacy-toc__drop {
    display: none;
  }

  .page-privacy .privacy-toc__list {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .page-privacy .privacy-toc__list::-webkit-scrollbar {
    display: none;
  }

  .page-privacy .privacy-toc__list a {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 8px 16px;
    white-space: nowrap;
    font-size: 13px;
    letter-spacing: 0.02em;
    text-decoration: none;
    color: var(--rb-ink-dim);
    border: 1px solid var(--rb-line);
    clip-path: polygon(10px 0, 100% 0, calc(100% - 10px) 100%, 0 100%);
    transition: color var(--rb-dur) var(--rb-ease), background var(--rb-dur) var(--rb-ease), border-color var(--rb-dur) var(--rb-ease);
  }

  .page-privacy .privacy-toc__list a:hover,
  .page-privacy .privacy-toc__list a:focus-visible {
    color: var(--rb-white);
    background: var(--rb-red);
    border-color: var(--rb-red);
  }

  .page-privacy .privacy-toc__list .rb-num {
    font-family: var(--rb-font-mono);
    font-size: 12px;
    color: var(--rb-blue);
  }

  .page-privacy .privacy-toc__list a:hover .rb-num,
  .page-privacy .privacy-toc__list a:focus-visible .rb-num {
    color: var(--rb-yellow);
  }
}

/* ---------- 霜白阅读区 ---------- */
.page-privacy .privacy-body {
  position: relative;
  background: var(--rb-white);
  color: var(--pv-ink);
  padding-block: clamp(48px, 7vw, 96px);
}

.page-privacy .privacy-body::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--rb-red) 0%, var(--rb-blue) 42%, var(--rb-yellow) 78%, transparent 100%);
  transform: skewY(-0.35deg);
  transform-origin: left center;
}

.page-privacy .privacy-reader {
  max-width: var(--pv-read);
  margin-inline: auto;
}

/* ---------- 分节 ---------- */
.page-privacy .privacy-block {
  padding-bottom: clamp(40px, 5.5vw, 68px);
  scroll-margin-top: calc(var(--rb-header-space) + 84px);
}

.page-privacy .privacy-block + .privacy-block::before {
  content: "";
  display: block;
  height: 2px;
  background: linear-gradient(90deg, var(--rb-red) 0%, rgba(210, 32, 47, 0.4) 28%, rgba(140, 148, 158, 0.38) 66%, transparent 100%);
  transform: skewY(-0.75deg);
  transform-origin: left center;
  margin-bottom: clamp(40px, 5.5vw, 68px);
}

.page-privacy .privacy-block__head {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: clamp(18px, 2.6vw, 26px);
}

.page-privacy .privacy-block__num {
  flex: none;
  font-family: var(--rb-font-mono);
  font-size: clamp(1.5rem, 3.6vw, 2.35rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--rb-red);
}

.page-privacy .privacy-block__title {
  margin: 0;
  font-family: var(--rb-font-display);
  font-weight: 900;
  font-size: clamp(1.3rem, 2.7vw, 1.95rem);
  line-height: 1.24;
  letter-spacing: -0.01em;
  color: var(--pv-ink);
}

.page-privacy .privacy-block p {
  margin: 0 0 1.45em;
  max-width: 38em;
  font-size: clamp(1rem, 1.15vw, 1.06rem);
  line-height: 1.85;
  color: var(--pv-ink-soft);
}

.page-privacy .privacy-block > p:last-of-type {
  margin-bottom: 0;
}

.page-privacy .privacy-note {
  position: relative;
  margin: clamp(22px, 3vw, 30px) 0 0;
  padding: 14px 8px 14px 20px;
  max-width: 36em;
  border-left: 3px solid var(--rb-red);
  background: linear-gradient(90deg, rgba(210, 32, 47, 0.08), rgba(210, 32, 47, 0) 82%);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.72;
  color: var(--pv-ink);
}

/* ---------- 折叠细则 ---------- */
.page-privacy .privacy-fold {
  margin-top: clamp(22px, 3vw, 30px);
}

.page-privacy .privacy-fold__item {
  border-top: 1px solid var(--pv-hair);
}

.page-privacy .privacy-fold__btn {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 15px 0;
  text-align: left;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--pv-ink);
  background: none;
  border: 0;
  cursor: pointer;
  transition: color var(--rb-dur) var(--rb-ease);
}

.page-privacy .privacy-fold__btn::before {
  content: "+";
  flex: none;
  width: 18px;
  font-family: var(--rb-font-mono);
  font-size: 17px;
  line-height: 1;
  color: var(--rb-red);
}

.page-privacy .privacy-fold__btn[aria-expanded="true"]::before {
  content: "–";
}

.page-privacy .privacy-fold__btn::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  margin-left: 12px;
  background: linear-gradient(90deg, rgba(210, 32, 47, 0.55), transparent);
  transform: skewY(-0.6deg);
}

.page-privacy .privacy-fold__btn:hover {
  color: var(--rb-red);
}

.page-privacy .privacy-fold__btn:focus-visible {
  outline: none;
  box-shadow: inset 0 0 0 3px rgba(46, 125, 255, 0.55);
  border-radius: 2px;
}

.page-privacy .privacy-fold__panel {
  padding: 2px 0 18px 28px;
}

.page-privacy .privacy-fold__panel[hidden] {
  display: none;
}

.page-privacy .privacy-fold__panel ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
  border-left: 1px solid rgba(46, 125, 255, 0.34);
  padding-left: 16px;
}

.page-privacy .privacy-fold__panel li {
  position: relative;
  font-size: 15px;
  line-height: 1.72;
  color: var(--pv-ink-dim);
}

.page-privacy .privacy-fold__panel li::before {
  content: "";
  position: absolute;
  left: -16px;
  top: 0.72em;
  width: 8px;
  height: 1.5px;
  background: var(--rb-blue);
}

/* ---------- 延伸入口 ---------- */
.page-privacy .privacy-related {
  background: var(--rb-black);
  padding-block: clamp(52px, 7vw, 88px);
  border-top: 1px solid var(--rb-line);
}

.page-privacy .privacy-related__title {
  margin: 0 0 clamp(22px, 3vw, 34px);
  font-family: var(--rb-font-display);
  font-weight: 900;
  font-size: clamp(1.35rem, 2.7vw, 1.9rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--rb-white);
}

.page-privacy .privacy-related__list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: 900px;
  display: grid;
  gap: 1px;
}

.page-privacy .privacy-related__list a {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 20px 4px;
  text-decoration: none;
  border-bottom: 1px solid var(--rb-line);
  transition: padding-left var(--rb-dur) var(--rb-ease), border-color var(--rb-dur) var(--rb-ease);
}

.page-privacy .privacy-related__list a:hover,
.page-privacy .privacy-related__list a:focus-visible {
  padding-left: 14px;
  border-bottom-color: var(--rb-red);
}

.page-privacy .privacy-related__label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--rb-font-display);
  font-size: 1.05rem;
  font-weight: 900;
  color: var(--rb-white);
}

.page-privacy .privacy-related__label::before {
  content: "";
  flex: none;
  width: 14px;
  height: 2px;
  background: var(--rb-red);
  transform: skewY(-6deg);
}

.page-privacy .privacy-related__desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--rb-ink-dim);
}

@media (min-width: 760px) {
  .page-privacy .privacy-related__list a {
    grid-template-columns: minmax(0, 190px) minmax(0, 1fr);
    align-items: baseline;
    gap: 8px 24px;
  }

  .page-privacy .privacy-related__desc {
    padding-top: 1px;
  }
}

/* ---------- 窄屏收敛 ---------- */
@media (max-width: 720px) {
  .page-privacy .privacy-hero__media {
    --rb-media-ratio: 16 / 9;
    max-height: none;
  }

  .page-privacy .privacy-hero__title {
    font-size: clamp(1.85rem, 8.4vw, 2.6rem);
    max-width: none;
  }

  .page-privacy .privacy-block__head {
    flex-direction: column;
    gap: 6px;
  }

  .page-privacy .privacy-block__num {
    font-size: 1.35rem;
  }

  .page-privacy .privacy-note {
    padding-right: 4px;
  }

  .page-privacy .privacy-fold__panel {
    padding-left: 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-fold__btn,
  .page-privacy .privacy-related__list a,
  .page-privacy .privacy-toc__summary::after,
  .page-privacy .privacy-toc__list a {
    transition-duration: 120ms;
  }
}