.page-privacy {
  --pr-rail-w: 4.5rem;
  --pr-body-w: 68ch;
  --pr-sticky-top: 6rem;
  background: var(--ink-800);
  color: var(--paper);
}

/* ---------- 首屏 ---------- */
.page-privacy .pr-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(2.25rem, 5.5vw, 4.5rem) 0 clamp(4rem, 9vw, 7rem);
  background:
    linear-gradient(155deg, var(--ink-800) 0%, var(--ink-750) 58%, var(--ink-700) 100%);
}

.page-privacy .pr-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  right: -18%;
  top: -30%;
  width: 62vw;
  height: 62vw;
  background: radial-gradient(circle at 40% 40%, rgba(138, 107, 255, 0.34), transparent 62%);
  pointer-events: none;
}

.page-privacy .pr-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: clamp(2.5rem, 5vw, 4.5rem);
  background: var(--paper);
  clip-path: polygon(0 100%, 100% 8%, 100% 100%);
  pointer-events: none;
}

.page-privacy .pr-hero .breadcrumb {
  margin: 0 0 clamp(1.5rem, 3.5vw, 2.5rem);
  font-size: 0.875rem;
  color: var(--mist);
}

.page-privacy .pr-hero .breadcrumb a {
  color: var(--cyan);
  text-decoration: none;
}

.page-privacy .pr-hero .breadcrumb a:hover,
.page-privacy .pr-hero .breadcrumb a:focus-visible {
  color: var(--amber);
  text-decoration: underline;
}

.page-privacy .pr-hero__grid {
  row-gap: clamp(2rem, 4vw, 3rem);
  align-items: start;
}

.page-privacy .pr-hero__copy h1 {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2.1rem, 5.4vw, 4.1rem);
  line-height: 1.06;
  letter-spacing: -0.02em;
  margin: 0 0 clamp(1rem, 2.2vw, 1.5rem);
  color: var(--paper);
  max-width: 18ch;
}

.page-privacy .pr-hero__lede {
  font-size: clamp(1.0625rem, 1.25vw, 1.1875rem);
  line-height: 1.75;
  letter-spacing: 0.01em;
  color: var(--mist);
  max-width: 54ch;
  margin: 0 0 clamp(1.5rem, 3vw, 2.25rem);
}

.page-privacy .pr-hero__meta {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem clamp(1rem, 2.5vw, 1.75rem);
  font-size: 0.875rem;
  color: var(--mist);
}

.page-privacy .pr-hero__meta li {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding-left: 0.85rem;
  border-left: 2px solid var(--amber);
}

.page-privacy .pr-hero__meta .num {
  color: var(--cyan);
  letter-spacing: 0.08em;
}

.page-privacy .pr-hero__figure {
  margin: 0;
}

.page-privacy .pr-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 16 / 9;
}

/* ---------- 目录条 ---------- */
.page-privacy .pr-toc {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--ink-900);
  border-bottom: 2px solid var(--cyan);
}

.page-privacy .pr-toc__inner {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding-top: 0.55rem;
  padding-bottom: 0.55rem;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

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

.page-privacy .pr-toc__label {
  flex: 0 0 auto;
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--slate);
  padding-right: 0.6rem;
  margin-right: 0.35rem;
  border-right: var(--line);
}

.page-privacy .pr-toc__link {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: baseline;
  gap: 0.4rem;
  padding: 0.35rem 0.6rem;
  font-size: 0.8125rem;
  line-height: 1.4;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-privacy .pr-toc__link .num {
  font-size: 0.75rem;
  color: var(--cyan);
  letter-spacing: 0.08em;
}

.page-privacy .pr-toc__link:hover,
.page-privacy .pr-toc__link:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--amber);
}

/* ---------- 条款正文 ---------- */
.page-privacy .pr-terms {
  background: var(--paper);
  color: var(--paper-ink);
  padding: clamp(2.5rem, 6vw, 5rem) 0 clamp(3rem, 7vw, 6rem);
}

.page-privacy .pr-doc {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.5rem, 3vw, 2.75rem);
}

.page-privacy .pr-body {
  max-width: var(--pr-body-w);
  min-width: 0;
}

.page-privacy .pr-rail {
  display: none;
}

.page-privacy .clause {
  scroll-margin-top: var(--pr-sticky-top);
}

.page-privacy .clause + .clause {
  margin-top: clamp(2rem, 4.5vw, 3.5rem);
  padding-top: clamp(2rem, 4.5vw, 3.5rem);
  border-top: var(--line);
}

.page-privacy .clause__title {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin: 0 0 clamp(1rem, 2.2vw, 1.5rem);
  padding-left: 0.9rem;
  border-left: 2px solid var(--amber);
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.3rem, 2.4vw, 1.85rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--paper-ink);
}

.page-privacy .clause__num {
  flex: 0 0 auto;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--slate);
}

.page-privacy .clause__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-privacy .clause__list li {
  display: grid;
  grid-template-columns: 2.9rem minmax(0, 1fr);
  gap: 0.5rem;
  padding: 0.9rem 0;
  font-size: 1.0625rem;
  line-height: 1.75;
  letter-spacing: 0.01em;
  border-bottom: var(--line);
}

.page-privacy .clause__list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-privacy .clause__list .num {
  color: var(--slate);
  font-size: 0.875rem;
  letter-spacing: 0.06em;
  padding-top: 0.28em;
}

.page-privacy .clause:target {
  border-left: 2px solid var(--cyan);
  padding-left: clamp(0.75rem, 2vw, 1.25rem);
  margin-left: calc(-1 * clamp(0.75rem, 2vw, 1.25rem));
  transition: border-color 240ms var(--ease);
}

/* ---------- 结尾联系 ---------- */
.page-privacy .pr-contact {
  background: var(--ink-800);
  color: var(--paper);
  padding: clamp(2.5rem, 6vw, 4.5rem) 0 clamp(2rem, 4vw, 3rem);
}

.page-privacy .pr-contact__box {
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  padding: clamp(1.5rem, 3.5vw, 2.75rem);
  border: 2px solid var(--cyan);
  box-shadow: var(--shadow-hard);
  background: var(--ink-750);
}

.page-privacy .pr-contact__copy h2 {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: clamp(1.5rem, 2.8vw, 2.15rem);
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0 0 0.85rem;
  color: var(--paper);
}

.page-privacy .pr-contact__copy p {
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--mist);
  max-width: 58ch;
}

.page-privacy .pr-contact__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.page-privacy .pr-top__wrap {
  display: flex;
  justify-content: flex-end;
  margin-top: clamp(1.75rem, 4vw, 2.75rem);
}

.page-privacy .pr-top {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.9rem;
  font-family: var(--font-head);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--mist);
  background: transparent;
  border: 2px solid var(--slate);
  border-radius: 0;
  cursor: pointer;
  transition: color 200ms var(--ease), border-color 200ms var(--ease), transform 200ms var(--ease);
}

.page-privacy .pr-top .num {
  color: var(--cyan);
}

.page-privacy .pr-top:hover,
.page-privacy .pr-top:focus-visible {
  color: var(--paper);
  border-color: var(--amber);
  transform: translateY(-2px);
}

/* ---------- 响应式 ---------- */
@media (min-width: 600px) {
  .page-privacy .clause__list li {
    grid-template-columns: 3.4rem minmax(0, 1fr);
  }

  .page-privacy .pr-toc__link {
    font-size: 0.875rem;
  }

  .page-privacy .pr-contact__box {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

@media (min-width: 900px) {
  .page-privacy .pr-doc {
    grid-template-columns: var(--pr-rail-w) minmax(0, 1fr);
    gap: clamp(1.5rem, 3vw, 2.75rem);
  }

  .page-privacy .pr-rail {
    display: flex;
    flex-direction: column;
    gap: 2.25rem;
    align-self: start;
    position: sticky;
    top: var(--pr-sticky-top);
    padding-left: 0.5rem;
    border-left: 2px solid var(--amber);
  }

  .page-privacy .pr-rail__item {
    position: relative;
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--slate);
  }

  .page-privacy .pr-rail__item::before {
    content: "";
    position: absolute;
    left: -0.5rem;
    top: 0.55em;
    width: 0.5rem;
    height: 1px;
    background: var(--slate);
  }

  .page-privacy .pr-hero__copy h1 {
    max-width: 15ch;
  }
}

@media (min-width: 1280px) {
  .page-privacy .pr-rail {
    gap: 2.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .pr-toc__link,
  .page-privacy .pr-top,
  .page-privacy .clause:target {
    transition: none;
  }

  .page-privacy .pr-top:hover,
  .page-privacy .pr-top:focus-visible {
    transform: none;
  }
}