.page-privacy {
  --p-gutter: clamp(20px, 5vw, 48px);
  --p-line: rgba(214, 164, 74, 0.42);
  --p-text: rgba(22, 33, 30, 0.82);
  --p-text-on-dark: rgba(243, 236, 224, 0.84);
  --p-body-width: minmax(0, 62ch);

  background: var(--paper);
  color: var(--ink-text);
  font-family: var(--font-body);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */

.page-privacy .privacy-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(40px, 7vw, 84px) 0 clamp(28px, 5vw, 56px);
  background: linear-gradient(155deg, var(--ink) 0%, #061a17 48%, var(--indigo) 100%);
  color: var(--paper);
}

.page-privacy .privacy-hero__texture {
  position: absolute;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.2;
  pointer-events: none;
}

.page-privacy .privacy-hero__inner {
  position: relative;
}

.page-privacy .privacy-hero .eyebrow {
  color: var(--gold-soft);
}

.page-privacy .privacy-hero .h-display {
  max-width: 20ch;
  margin: 18px 0 22px;
  color: var(--paper);
}

.page-privacy .privacy-hero .lead {
  max-width: 54ch;
  margin: 0;
  color: rgba(243, 236, 224, 0.8);
}

.page-privacy .privacy-hero__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 20px;
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--gold-soft);
}

.page-privacy .privacy-hero__tags li {
  position: relative;
  padding-left: 16px;
}

.page-privacy .privacy-hero__tags li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cinnabar);
}

/* ---------- 章节索引 ---------- */

.page-privacy .privacy-index {
  margin-top: clamp(30px, 5vw, 48px);
  padding-top: 16px;
  border-top: 1px solid rgba(240, 212, 155, 0.22);
}

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

.page-privacy .privacy-index__list::-webkit-scrollbar {
  height: 3px;
}

.page-privacy .privacy-index__list::-webkit-scrollbar-thumb {
  background: rgba(240, 212, 155, 0.4);
}

.page-privacy .privacy-index__list a {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid rgba(240, 212, 155, 0.26);
  border-radius: 999px;
  color: var(--paper);
  font-size: 14px;
  white-space: nowrap;
  text-decoration: none;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.page-privacy .privacy-index__list a .mono {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--gold);
}

.page-privacy .privacy-index__list a:hover,
.page-privacy .privacy-index__list a:focus-visible {
  background: rgba(214, 164, 74, 0.2);
  border-color: var(--gold);
}

/* ---------- 阅读长卷 ---------- */

.page-privacy .privacy-flow {
  display: block;
  background: var(--paper);
}

.page-privacy .privacy-sec {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  padding: clamp(44px, 8vw, 92px) var(--p-gutter);
}

.page-privacy .privacy-sec__aside {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 40px;
}

.page-privacy .privacy-sec__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 46px;
  height: 40px;
  padding: 0 10px;
  border: 1px solid var(--p-line);
  border-radius: 12px 4px 12px 4px;
  background: rgba(214, 164, 74, 0.08);
  color: var(--gold-deep);
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.1em;
}

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

.page-privacy .privacy-sec__body {
  max-width: 66ch;
}

.page-privacy .privacy-sec__body .h-section {
  margin: 0 0 14px;
  color: var(--ink-text);
}

.page-privacy .privacy-sec__lead {
  max-width: 56ch;
  margin: 0;
  font-size: 17px;
  line-height: 1.75;
  color: var(--p-text);
}

.page-privacy .privacy-list {
  display: grid;
  gap: 18px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-privacy .privacy-list__item {
  padding-left: 18px;
  border-left: 2px solid var(--p-line);
  font-size: 16px;
  line-height: 1.75;
  color: var(--p-text);
  overflow-wrap: anywhere;
}

.page-privacy .privacy-list__item strong {
  display: block;
  margin-bottom: 4px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: var(--ink-text);
}

.page-privacy .privacy-note {
  max-width: 56ch;
  margin: 22px 0 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--mist);
}

.page-privacy .privacy-note a {
  color: var(--gold-deep);
  text-underline-offset: 3px;
}

.page-privacy .privacy-note a:hover,
.page-privacy .privacy-note a:focus-visible {
  color: var(--cinnabar);
}

/* ---------- 术语标签 ---------- */

.page-privacy .term {
  position: relative;
  display: inline-block;
  padding: 1px 8px;
  margin: 0 2px;
  background: var(--sand);
  border-bottom: 1px dashed rgba(138, 101, 32, 0.5);
  border-radius: 6px;
  font-size: 0.92em;
  color: var(--ink-text);
  cursor: help;
}

.page-privacy .term__tip {
  position: absolute;
  left: 0;
  bottom: calc(100% + 8px);
  z-index: 6;
  width: max-content;
  max-width: min(260px, 74vw);
  padding: 8px 12px;
  background: var(--ink);
  border-radius: 10px 4px 10px 4px;
  color: var(--paper);
  font-family: var(--font-body);
  font-size: 13px;
  font-style: normal;
  line-height: 1.6;
  opacity: 0;
  visibility: hidden;
  transform: translateY(4px);
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
}

.page-privacy .term:hover .term__tip,
.page-privacy .term:focus .term__tip,
.page-privacy .term:focus-visible .term__tip {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* ---------- 色区变体 ---------- */

.page-privacy .privacy-sec--sand {
  background: linear-gradient(180deg, var(--sand), #eee5d6);
}

.page-privacy .privacy-sec--deep {
  background:
    radial-gradient(80% 60% at 86% 4%, rgba(28, 90, 76, 0.6), transparent 62%),
    linear-gradient(180deg, var(--pine), #07201b);
  color: var(--p-text-on-dark);
}

.page-privacy .privacy-sec--deep .h-section {
  color: var(--paper);
}

.page-privacy .privacy-sec--deep .privacy-sec__lead,
.page-privacy .privacy-sec--deep .privacy-list__item {
  color: var(--p-text-on-dark);
}

.page-privacy .privacy-sec--deep .privacy-list__item {
  border-left-color: rgba(240, 212, 155, 0.45);
}

.page-privacy .privacy-sec--deep .privacy-list__item strong {
  color: var(--gold-soft);
}

.page-privacy .privacy-sec--deep .privacy-sec__num {
  border-color: rgba(240, 212, 155, 0.4);
  background: rgba(240, 212, 155, 0.1);
  color: var(--gold-soft);
}

.page-privacy .privacy-sec--deep .privacy-note {
  color: rgba(243, 236, 224, 0.6);
}

.page-privacy .privacy-sec--deep .term {
  background: rgba(243, 236, 224, 0.14);
  color: var(--paper);
  border-bottom-color: rgba(240, 212, 155, 0.5);
}

/* ---------- 回到顶部 ---------- */

.page-privacy .privacy-top {
  display: flex;
  justify-content: center;
  padding: 0 var(--p-gutter) clamp(56px, 9vw, 104px);
  background: var(--paper);
}

.page-privacy .privacy-top__btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 22px;
  border: 1px solid var(--p-line);
  border-radius: 999px;
  background: transparent;
  color: var(--gold-deep);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-decoration: none;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.page-privacy .privacy-top__btn:hover,
.page-privacy .privacy-top__btn:focus-visible {
  background: var(--gold);
  border-color: var(--gold);
  color: var(--ink);
}

/* ---------- 桌面：编号靠左，正文偏右，竖线随滚动延伸 ---------- */

@media (min-width: 900px) {
  .page-privacy .privacy-sec {
    grid-template-columns: 72px var(--p-body-width);
    justify-content: center;
    column-gap: clamp(28px, 4vw, 56px);
    row-gap: 0;
  }

  .page-privacy .privacy-sec__aside {
    align-self: start;
    padding-top: 6px;
  }

  .page-privacy .privacy-sec__spine {
    display: block;
    position: absolute;
    left: 23px;
    top: 54px;
    bottom: -58px;
    width: 1px;
    background: rgba(214, 164, 74, 0.18);
    overflow: hidden;
  }

  .page-privacy .privacy-sec__spine::after {
    content: "";
    position: absolute;
    inset: 0;
    transform-origin: top center;
    background: linear-gradient(180deg, var(--gold), rgba(240, 212, 155, 0.45));
  }

  .page-privacy .privacy-sec--deep .privacy-sec__spine {
    background: rgba(240, 212, 155, 0.16);
  }

  .page-privacy .privacy-sec__body .h-section {
    font-size: clamp(30px, 3vw, 44px);
  }
}

@supports (animation-timeline: view()) {
  .page-privacy .privacy-sec__spine::after {
    animation: privacy-spine-grow linear both;
    animation-timeline: view();
    animation-range: entry 12% cover 58%;
  }
}

@keyframes privacy-spine-grow {
  from {
    transform: scaleY(0);
  }
  to {
    transform: scaleY(1);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-sec__spine::after {
    animation: none;
    transform: none;
  }

  .page-privacy .term__tip {
    transition: none;
  }
}