/* ===== 隐私声明页 · page-privacy ===== */

.page-privacy {
  --pp-rule: rgba(6, 10, 20, .14);
  --pp-rule-strong: rgba(6, 10, 20, .28);
  --pp-body: rgba(6, 10, 20, .78);
  --pp-soft: rgba(6, 10, 20, .55);
  position: relative;
  background: var(--paper-100);
  color: var(--ink-950);
}

/* --- 顶部阅读刻度 --- */
.page-privacy .pp-gauge {
  position: sticky;
  top: var(--header-h-sm);
  z-index: 20;
  height: 3px;
  background: rgba(6, 10, 20, .12);
}

.page-privacy .pp-gauge__fill {
  display: block;
  height: 100%;
  width: 100%;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--cyan-400), var(--orange-500));
}

@supports (animation-timeline: scroll()) {
  .page-privacy .pp-gauge__fill {
    animation: pp-gauge-fill linear both;
    animation-timeline: scroll(root block);
  }
}

@keyframes pp-gauge-fill {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

/* --- 页头 --- */
.page-privacy .pp-head {
  position: relative;
  padding-top: clamp(84px, 13vw, 148px);
  padding-bottom: clamp(36px, 5vw, 64px);
  background: var(--paper-100);
  overflow: hidden;
}

.page-privacy .pp-head__vnote {
  display: none;
}

.page-privacy .pp-head__text {
  max-width: 40ch;
}

.page-privacy .pp-head__title {
  margin: 12px 0 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(2.4rem, 9vw, 4.4rem);
  line-height: 1.04;
  letter-spacing: -.02em;
  color: var(--ink-950);
}

.page-privacy .pp-head__lede {
  margin: 20px 0 0;
  max-width: 60ch;
  font-size: clamp(1rem, 2.4vw, 1.12rem);
  line-height: 1.85;
  color: var(--pp-body);
}

.page-privacy .pp-head__figure {
  margin: clamp(32px, 5vw, 56px) 0 0;
}

.page-privacy .pp-head__figure .figure__frame {
  border: 1px solid var(--pp-rule-strong);
}

.page-privacy .pp-head__figure .figure__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-privacy .pp-head__figure .figure__cap {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--pp-soft);
}

/* --- 正文区 --- */
.page-privacy .pp-body {
  padding-bottom: clamp(56px, 9vw, 110px);
  background: var(--paper-100);
}

.page-privacy .pp-shell {
  display: grid;
  gap: 26px;
}

/* --- 章节目录 --- */
.page-privacy .pp-toc {
  position: sticky;
  top: calc(var(--header-h-sm) + 6px);
  z-index: 15;
  margin: 0 0 8px;
  padding: 10px 0;
  background: var(--paper-100);
  border-bottom: 1px solid var(--pp-rule);
}

.page-privacy .pp-toc__title {
  display: none;
}

.page-privacy .pp-toc__list {
  display: flex;
  gap: 18px;
  margin: 0;
  padding: 0 2px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}

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

.page-privacy .pp-toc__list li {
  flex: 0 0 auto;
}

.page-privacy .pp-toc__link {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  padding-bottom: 2px;
  white-space: nowrap;
  font-size: 13px;
  line-height: 1.6;
  color: var(--cyan-700);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

.page-privacy .pp-toc__link:hover,
.page-privacy .pp-toc__link:focus-visible {
  color: var(--ink-950);
  border-bottom-color: var(--cyan-700);
}

.page-privacy .pp-toc__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--orange-500);
}

/* --- 条款 --- */
.page-privacy .pp-doc {
  display: grid;
  gap: clamp(34px, 5.5vw, 60px);
  max-width: 68ch;
}

.page-privacy .pp-clause {
  padding-top: clamp(20px, 3vw, 30px);
  border-top: 1px solid var(--pp-rule);
  scroll-margin-top: calc(var(--header-h-sm) + 64px);
}

.page-privacy .pp-clause__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 16px;
}

.page-privacy .pp-clause__num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.45rem, 5vw, 2.3rem);
  line-height: 1;
  letter-spacing: -.02em;
  color: var(--cyan-700);
}

.page-privacy .pp-clause__title {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(1.25rem, 3.6vw, 1.72rem);
  line-height: 1.32;
  letter-spacing: -.01em;
  color: var(--ink-950);
}

.page-privacy .pp-clause__body > p {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.88;
  color: var(--pp-body);
}

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

.page-privacy .pp-clause__body .note-list {
  display: grid;
  gap: 12px;
  margin: 18px 0 18px;
}

.page-privacy .pp-clause__body .note-list__item {
  font-size: 15px;
  line-height: 1.82;
  color: var(--pp-body);
}

.page-privacy .pp-clause__body .note-list__item strong {
  color: var(--ink-950);
  font-weight: 700;
}

.page-privacy .pp-clause:target {
  border-top-color: var(--orange-500);
}

.page-privacy .pp-clause:target .pp-clause__num {
  color: var(--orange-500);
}

/* --- 邮箱强调 --- */
.page-privacy .pp-mail {
  display: inline-block;
  padding: 2px 6px;
  font-family: var(--font-mono);
  font-size: .92em;
  color: var(--ink-950);
  background: rgba(59, 227, 220, .22);
  border-bottom: 1px solid var(--cyan-700);
  word-break: break-all;
}

/* --- 链接按钮行 --- */
.page-privacy .pp-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--pp-rule);
}

/* --- 返回坐标 --- */
.page-privacy .pp-return {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: clamp(20px, 3vw, 28px) 0 0;
  border-top: 1px solid var(--pp-rule-strong);
}

.page-privacy .pp-return__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--pp-soft);
}

.page-privacy .pp-return .btn {
  flex: 0 0 auto;
}

/* --- 平板 --- */
@media (min-width: 720px) {
  .page-privacy .pp-head__text {
    max-width: 44ch;
  }

  .page-privacy .pp-doc {
    max-width: 72ch;
  }
}

/* --- 桌面：左侧固定编号目录 --- */
@media (min-width: 1024px) {
  .page-privacy .pp-gauge {
    top: var(--header-h);
  }

  .page-privacy .pp-head__vnote {
    display: block;
    position: absolute;
    top: clamp(110px, 12vw, 160px);
    right: clamp(16px, 4vw, 44px);
    writing-mode: vertical-rl;
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: .32em;
    color: var(--pp-soft);
  }

  .page-privacy .pp-shell {
    grid-template-columns: 218px minmax(0, 1fr);
    gap: clamp(36px, 5vw, 78px);
    align-items: start;
  }

  .page-privacy .pp-toc {
    top: calc(var(--header-h) + 22px);
    margin: 0;
    padding: 0 0 0 18px;
    background: transparent;
    border-bottom: 0;
    border-left: 1px solid var(--pp-rule-strong);
  }

  .page-privacy .pp-toc__title {
    display: block;
    margin: 0 0 16px;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: .3em;
    color: var(--pp-soft);
  }

  .page-privacy .pp-toc__list {
    display: block;
    overflow: visible;
    padding: 0;
  }

  .page-privacy .pp-toc__list li {
    margin-bottom: 13px;
  }

  .page-privacy .pp-toc__link {
    display: flex;
    align-items: baseline;
    gap: 8px;
    font-size: 14px;
    line-height: 1.6;
    white-space: normal;
    color: var(--pp-body);
    border-bottom: 0;
  }

  .page-privacy .pp-toc__link:hover,
  .page-privacy .pp-toc__link:focus-visible {
    color: var(--cyan-700);
  }

  .page-privacy .pp-toc__num {
    font-size: 12px;
    color: var(--orange-500);
  }

  .page-privacy .pp-clause {
    scroll-margin-top: calc(var(--header-h) + 80px);
  }

  .page-privacy .pp-doc {
    max-width: 70ch;
  }
}

/* --- 宽屏 --- */
@media (min-width: 1320px) {
  .page-privacy .pp-shell {
    grid-template-columns: 240px minmax(0, 1fr);
  }
}

/* --- 减少动效 --- */
@media (prefers-reduced-motion: reduce) {
  .page-privacy .pp-gauge__fill {
    animation: none;
    transform: scaleX(1);
  }

  .page-privacy .pp-toc__link {
    transition: none;
  }
}