.page-privacy {
  background: var(--ink-950);
  color: var(--mist-100);
  font-family: var(--font-sans);
  padding: clamp(20px, 3.4vw, 40px) 0 clamp(56px, 7vw, 96px);
}

.page-privacy .privacy-col {
  position: relative;
  width: min(100%, 74ch);
  margin: 0 auto;
  display: grid;
  gap: clamp(26px, 4vw, 46px);
}

/* 面包屑 */
.page-privacy .crumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist-400);
}
.page-privacy .crumb a {
  color: var(--mist-400);
  text-decoration: none;
  border-bottom: 1px solid var(--line-hair);
  transition: color var(--ease), border-color var(--ease);
}
.page-privacy .crumb a:hover {
  color: var(--cyan);
  border-color: var(--cyan);
}
.page-privacy .crumb__sep {
  color: var(--line-500);
}
.page-privacy .crumb [aria-current="page"] {
  color: var(--mist-100);
}

/* 纵向小注释 */
.page-privacy .privacy-rot {
  display: none;
}

/* 首屏框景 */
.page-privacy .privacy-hero {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-hair);
  background: linear-gradient(162deg, var(--green-900) 0%, var(--ink-950) 76%);
  padding: clamp(20px, 3.4vw, 38px);
}
.page-privacy .privacy-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--line-hair) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line-hair) 1px, transparent 1px);
  background-size: 44px 44px;
  opacity: 0.2;
  pointer-events: none;
}
.page-privacy .privacy-hero > * {
  position: relative;
  z-index: 1;
}
.page-privacy .privacy-hero__stamp {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--mist-400);
  text-transform: uppercase;
}
.page-privacy .privacy-hero__title {
  margin: 0 0 14px;
  font-size: clamp(30px, 6.4vw, 52px);
  line-height: 1.06;
  letter-spacing: 0.02em;
  font-weight: 700;
  color: var(--mist-100);
}
.page-privacy .privacy-hero__lead {
  margin: 0;
  max-width: 54ch;
  font-size: var(--step-0);
  line-height: 1.75;
  color: var(--mist-100);
  opacity: 0.86;
}
.page-privacy .privacy-figure {
  margin: clamp(20px, 3vw, 30px) 0 0;
  border: 1px solid var(--line-hair);
  background: var(--green-900);
}
.page-privacy .privacy-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.04);
}
.page-privacy .privacy-figure .media__cap {
  display: block;
  border-top: 1px solid var(--line-hair);
  padding: 8px 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--mist-400);
}

/* 条款索引刻度 */
.page-privacy .privacy-index {
  border-top: 1px solid var(--line-500);
  border-bottom: 1px solid var(--line-hair);
  padding: 14px 0 16px;
}
.page-privacy .privacy-index__head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 6px 16px;
  color: var(--mist-400);
}
.page-privacy .privacy-index__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line-hair);
  border: 1px solid var(--line-hair);
}
.page-privacy .privacy-index__item {
  background: var(--ink-950);
}
.page-privacy .privacy-index__link {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 13px;
  text-decoration: none;
  color: var(--mist-100);
  transition: background var(--ease), color var(--ease), box-shadow var(--ease);
}
.page-privacy .privacy-index__link:hover {
  background: var(--cyan-veil);
  color: var(--cyan);
  box-shadow: inset 2px 0 0 var(--cyan);
}
.page-privacy .privacy-index__link[aria-current="true"] {
  background: var(--cyan-veil);
  box-shadow: inset 2px 0 0 var(--cyan);
}
.page-privacy .privacy-index__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}
.page-privacy .privacy-index__label {
  font-size: 15px;
  line-height: 1.5;
}

/* 条款块 */
.page-privacy .clause {
  scroll-margin-top: calc(var(--bar-h) + 20px);
}
.page-privacy .index-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
}
.page-privacy .index-head__num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}
.page-privacy .index-head__label {
  margin: 0;
  font-size: clamp(19px, 2.4vw, 24px);
  line-height: 1.3;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--mist-100);
}
.page-privacy .index-head__ver {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist-400);
}
.page-privacy .clause__body {
  margin-top: 16px;
  border-left: 1px solid var(--line-hair);
  padding-left: clamp(14px, 2.6vw, 28px);
}
.page-privacy .clause__body p {
  margin: 0 0 14px;
  max-width: 62ch;
  font-size: var(--step-0);
  line-height: 1.75;
  color: var(--mist-100);
}
.page-privacy .clause__body p:last-child {
  margin-bottom: 0;
}

/* 条款分点 */
.page-privacy .terms {
  list-style: none;
  margin: 18px 0;
  padding: 0;
  border-top: 1px solid var(--line-hair);
}
.page-privacy .terms__item {
  display: grid;
  gap: 6px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-hair);
}
.page-privacy .terms__k {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--cyan);
}
.page-privacy .terms__v {
  font-size: 15.5px;
  line-height: 1.72;
  color: var(--mist-100);
}

/* 版本数据带 */
.page-privacy .band {
  display: grid;
  grid-template-columns: 1fr;
  margin-top: 18px;
  border: 1px solid var(--line-hair);
}
.page-privacy .band__seg {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line-hair);
}
.page-privacy .band__seg:last-child {
  border-bottom: 0;
}
.page-privacy .band__k {
  display: block;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mist-400);
}
.page-privacy .band__v {
  display: block;
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: var(--step-1);
  color: var(--mist-100);
  font-variant-numeric: tabular-nums;
}

/* 折叠 */
.page-privacy .fold {
  margin-top: 18px;
  border: 1px solid var(--line-hair);
  background: var(--green-900);
}
.page-privacy .fold__summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 13px 15px;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  line-height: 1.5;
  color: var(--mist-100);
  transition: color var(--ease), background var(--ease);
}
.page-privacy .fold__summary::-webkit-details-marker {
  display: none;
}
.page-privacy .fold__summary::before {
  content: "+";
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--cyan);
}
.page-privacy .fold[open] .fold__summary::before {
  content: "–";
}
.page-privacy .fold__summary:hover {
  background: var(--cyan-veil);
  color: var(--cyan);
}
.page-privacy .fold__body {
  border-top: 1px solid var(--line-hair);
  padding: 14px 15px 16px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist-400);
}
.page-privacy .fold__body p {
  margin: 0;
}

/* 正文链接 */
.page-privacy .link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-500);
  transition: border-color var(--ease);
}
.page-privacy .link:hover {
  border-color: var(--cyan);
}

/* 页尾索引返回 */
.page-privacy .privacy-end {
  border-top: 1px solid var(--line-500);
  padding-top: 18px;
  display: grid;
  gap: 12px;
  justify-items: start;
}
.page-privacy .privacy-end__note {
  margin: 0;
  max-width: 52ch;
  font-family: var(--font-mono);
  font-size: 11.5px;
  line-height: 1.7;
  letter-spacing: 0.06em;
  color: var(--mist-400);
}

/* 焦点可见 */
.page-privacy a:focus-visible,
.page-privacy summary:focus-visible {
  outline: 1px solid var(--cyan);
  outline-offset: 3px;
}

/* 进入视口显现 */
.page-privacy [data-reveal].is-inview {
  animation: pv-rise 320ms var(--ease) both;
}
@keyframes pv-rise {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

@media (min-width: 640px) {
  .page-privacy .terms__item {
    grid-template-columns: 15ch 1fr;
    gap: 20px;
    align-items: start;
  }
  .page-privacy .band {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-privacy .band__seg {
    border-bottom: 0;
    border-right: 1px solid var(--line-hair);
  }
  .page-privacy .band__seg:last-child {
    border-right: 0;
  }
}

@media (min-width: 760px) {
  .page-privacy .privacy-index__list {
    grid-template-columns: 1fr 1fr;
  }
  .page-privacy .privacy-hero {
    padding: clamp(26px, 3vw, 42px);
  }
}

@media (min-width: 1080px) {
  .page-privacy .privacy-rot {
    display: block;
    position: absolute;
    left: -68px;
    top: 6px;
    writing-mode: vertical-rl;
    transform: rotate(180deg);
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.2em;
    color: var(--mist-400);
    white-space: nowrap;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy [data-reveal].is-inview {
    animation: none;
  }
  .page-privacy .privacy-index__link,
  .page-privacy .crumb a,
  .page-privacy .link,
  .page-privacy .fold__summary {
    transition: none;
  }
}