.page-privacy {
  --privacy-rule: var(--ink-700);
  --privacy-gap: clamp(48px, 8vw, 104px);
  background: var(--ink-950);
  color: var(--body-text);
  padding: clamp(24px, 5vw, 56px) 0 clamp(80px, 11vw, 148px);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-privacy .privacy-hero {
  position: relative;
  max-width: 880px;
  padding-top: clamp(18px, 3vw, 34px);
}

.page-privacy .privacy-hero::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: min(220px, 46vw);
  height: 2px;
  background: linear-gradient(90deg, var(--cyan-500), rgba(23, 196, 214, 0));
}

.page-privacy .privacy-hero__kicker {
  margin: 0 0 18px;
  color: var(--cyan-500);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.page-privacy .privacy-hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(34px, 7.4vw, 56px);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper-050);
}

.page-privacy .privacy-hero__lede {
  max-width: 36em;
  margin: 22px 0 0;
  font-size: 17px;
  line-height: 1.85;
  color: var(--body-text);
}

.page-privacy .privacy-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.04em;
  color: var(--slate-400);
}

.page-privacy .privacy-hero__meta li {
  position: relative;
  padding-left: 14px;
}

.page-privacy .privacy-hero__meta li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 1px;
  background: var(--cyan-500);
}

/* ---------- 顶部视觉 ---------- */
.page-privacy .privacy-visual {
  margin: clamp(32px, 5vw, 56px) 0 0;
  border: 1px solid var(--privacy-rule);
  background: var(--ink-900);
}

.page-privacy .privacy-visual img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 主轴：左窄右宽 ---------- */
.page-privacy .privacy-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(30px, 5vw, 60px);
  margin-top: var(--privacy-gap);
}

/* ---------- 章节索引 ---------- */
.page-privacy .privacy-toc {
  border-top: 1px solid var(--privacy-rule);
  padding-top: 14px;
}

.page-privacy .privacy-toc__label {
  margin: 0;
  color: var(--slate-400);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.page-privacy .privacy-toc__list {
  display: flex;
  gap: 20px;
  list-style: none;
  margin: 12px 0 0;
  padding: 0 0 4px;
  overflow-x: auto;
  scrollbar-width: none;
}

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

.page-privacy .privacy-toc__link {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 7px;
  padding: 8px 1px 10px;
  font-size: 14px;
  white-space: nowrap;
  color: var(--slate-400);
  text-decoration: none;
  transition: color 0.18s var(--ease);
}

.page-privacy .privacy-toc__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 2px;
  width: 100%;
  height: 1px;
  background: var(--privacy-rule);
  transition: background-color 0.18s var(--ease);
}

.page-privacy .privacy-toc__link:hover,
.page-privacy .privacy-toc__link:focus-visible {
  color: var(--paper-050);
}

.page-privacy .privacy-toc__link.is-current {
  color: var(--cyan-500);
}

.page-privacy .privacy-toc__link.is-current::after {
  background: var(--cyan-500);
}

.page-privacy .privacy-toc__idx {
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--blue-300);
}

.page-privacy .privacy-toc__link.is-current .privacy-toc__idx {
  color: var(--cyan-500);
}

/* ---------- 条款 ---------- */
.page-privacy .privacy-clause {
  scroll-margin-top: 96px;
  padding-top: clamp(26px, 4vw, 40px);
  border-top: 1px solid var(--privacy-rule);
  margin-bottom: clamp(38px, 6vw, 68px);
}

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

.page-privacy [data-reveal] {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.24s var(--ease), transform 0.24s var(--ease);
}

.page-privacy [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

.page-privacy .privacy-clause__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 20px;
}

.page-privacy .privacy-clause__num {
  flex: none;
  padding: 2px 7px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan-500);
  border: 1px solid rgba(23, 196, 214, 0.42);
  border-radius: 2px;
}

.page-privacy .privacy-clause__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(21px, 2.7vw, 26px);
  font-weight: 800;
  letter-spacing: -0.01em;
  line-height: 1.35;
  color: var(--paper-050);
}

.page-privacy .privacy-clause__body > p {
  max-width: 38em;
  margin: 0 0 18px;
  font-size: 17px;
  line-height: 1.85;
}

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

.page-privacy .privacy-clause__body a {
  color: var(--blue-300);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: color 0.18s var(--ease);
}

.page-privacy .privacy-clause__body a:hover,
.page-privacy .privacy-clause__body a:focus-visible {
  color: var(--cyan-500);
}

.page-privacy .privacy-clause__body .hint {
  margin-top: 20px;
  color: var(--slate-400);
}

/* ---------- 责任划分：刻度线 ---------- */
.page-privacy .privacy-clause--focus {
  position: relative;
}

.page-privacy .privacy-clause--focus::before {
  content: "";
  position: absolute;
  left: 0;
  top: -1px;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan-500) 0%, var(--cyan-500) 34%, var(--amber-500) 34%, var(--amber-500) 100%);
  opacity: 0.9;
}

.page-privacy .privacy-ruler {
  position: relative;
  height: 30px;
  margin: 4px 0 26px;
  border-top: 1px solid var(--privacy-rule);
  background-image: repeating-linear-gradient(
    90deg,
    var(--privacy-rule) 0,
    var(--privacy-rule) 1px,
    transparent 1px,
    transparent 26px
  );
  background-repeat: repeat-x;
  background-size: 100% 13px;
}

.page-privacy .privacy-ruler__mark {
  position: absolute;
  top: 0;
  left: 34%;
  width: 2px;
  height: 24px;
  background: var(--amber-500);
}

.page-privacy .privacy-ruler__mark::after {
  content: "责任边界";
  position: absolute;
  left: 8px;
  top: 3px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  white-space: nowrap;
  color: var(--amber-500);
}

.page-privacy .privacy-clause--focus .callout {
  max-width: 38em;
  margin: 0 0 20px;
}

/* ---------- 联系方式 ---------- */
.page-privacy .privacy-contact {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  max-width: 38em;
  list-style: none;
  margin: 26px 0 24px;
  padding: 0;
  border-top: 1px solid var(--privacy-rule);
}

.page-privacy .privacy-contact__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--privacy-rule);
}

.page-privacy .privacy-contact__key {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--slate-400);
}

.page-privacy .privacy-contact__val {
  font-size: 16px;
  color: var(--paper-050);
  overflow-wrap: anywhere;
}

/* ---------- 返回顶部 ---------- */
.page-privacy .privacy-top {
  position: fixed;
  right: 16px;
  bottom: 20px;
  z-index: 5;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 12px;
  border: 1px solid var(--privacy-rule);
  background: var(--ink-900);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--slate-400);
  text-decoration: none;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-privacy .privacy-top:hover,
.page-privacy .privacy-top:focus-visible {
  color: var(--cyan-500);
  border-color: rgba(23, 196, 214, 0.5);
}

.page-privacy .privacy-top__arrow {
  font-size: 13px;
  line-height: 1;
  color: var(--cyan-500);
}

/* ---------- 窄屏 ---------- */
@media (max-width: 560px) {
  .page-privacy .privacy-clause__head {
    flex-wrap: wrap;
    gap: 10px;
  }

  .page-privacy .privacy-ruler__mark {
    left: 28%;
  }

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

/* ---------- 桌面：左窄右宽主轴 ---------- */
@media (min-width: 900px) {
  .page-privacy .privacy-body {
    grid-template-columns: 208px minmax(0, 1fr);
    gap: clamp(48px, 6vw, 96px);
    align-items: start;
  }

  .page-privacy .privacy-toc {
    position: sticky;
    top: 96px;
    padding-bottom: 20px;
  }

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

  .page-privacy .privacy-toc__link {
    padding: 10px 1px 12px;
    white-space: normal;
  }

  .page-privacy .privacy-contact__row {
    grid-template-columns: 108px minmax(0, 1fr);
    align-items: baseline;
    gap: 18px;
  }

  .page-privacy .privacy-contact__key {
    padding-top: 2px;
  }
}

@media (min-width: 1180px) {
  .page-privacy .privacy-hero__lede,
  .page-privacy .privacy-clause__body > p {
    font-size: 17.5px;
  }
}

/* ---------- 降级 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-privacy [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .page-privacy .privacy-toc__link,
  .page-privacy .privacy-top,
  .page-privacy .privacy-clause__body a {
    transition: none;
  }
}