.page-privacy {
  --pr-index-w: 250px;
  --pr-radius: 4px;
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--font-body);
}

.page-privacy .shell {
  width: 100%;
  max-width: var(--shell-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- 页首：冬季纹理带 ---------- */
.page-privacy .privacy-hero {
  position: relative;
  padding-top: calc(var(--header-h) + clamp(28px, 5vw, 64px));
  padding-bottom: clamp(40px, 6vw, 76px);
  background:
    linear-gradient(180deg, rgba(127, 166, 160, .16) 0%, rgba(244, 241, 236, 0) 72%),
    var(--canvas);
  border-bottom: 1px solid var(--line);
}

.page-privacy .privacy-hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 6px;
  background: linear-gradient(90deg, var(--spring) 0 25%, var(--summer) 25% 50%, var(--autumn) 50% 75%, var(--winter) 75% 100%);
  opacity: .85;
}

.page-privacy .breadcrumb {
  margin-bottom: clamp(24px, 4vw, 40px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--ink-2);
}

.page-privacy .breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
}

.page-privacy .breadcrumb li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--line);
}

.page-privacy .breadcrumb a {
  color: var(--ink-2);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--line);
}

.page-privacy .breadcrumb a:hover {
  text-decoration-color: var(--mark);
  color: var(--ink);
}

.page-privacy .privacy-hero-grid {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
  align-items: end;
}

.page-privacy .privacy-kicker {
  margin: 0 0 16px;
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--winter-ink);
}

.page-privacy h1 {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 5.6vw, 56px);
  line-height: 1.18;
  letter-spacing: -.01em;
  color: var(--ink);
  max-width: 18em;
}

.page-privacy .privacy-lead {
  margin: 0;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.9;
  color: var(--ink-2);
  max-width: 40em;
}

.page-privacy .privacy-hero-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 18px;
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.page-privacy .privacy-meta-note {
  font-size: 12px;
  color: var(--ink-2);
  letter-spacing: .02em;
}

.page-privacy .privacy-hero-art {
  position: relative;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--pr-radius);
  overflow: hidden;
  background: var(--paper);
  box-shadow: var(--shadow-soft);
}

.page-privacy .privacy-hero-art img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 5;
  object-fit: cover;
  filter: saturate(.9);
}

.page-privacy .privacy-hero-art::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(127, 166, 160, .26), rgba(250, 248, 244, .12) 55%, rgba(91, 143, 168, .16));
  pointer-events: none;
}

/* ---------- 主体：左目录右正文 ---------- */
.page-privacy .privacy-body {
  display: grid;
  gap: clamp(28px, 4vw, 52px);
  padding-block: clamp(40px, 6vw, 76px) clamp(56px, 8vw, 96px);
}

.page-privacy .privacy-index {
  align-self: start;
}

.page-privacy .privacy-index-title {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--ink-2);
}

.page-privacy .privacy-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--line);
}

.page-privacy .privacy-index-list li {
  margin: 0;
}

.page-privacy .privacy-index-list a {
  display: flex;
  gap: 10px;
  align-items: baseline;
  margin-left: -1px;
  padding: 10px 0 10px 14px;
  border-left: 2px solid transparent;
  font-family: var(--font-display);
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-2);
  text-decoration: none;
  transition: color .16s var(--ease), border-color .16s var(--ease), background-color .16s var(--ease);
}

.page-privacy .privacy-index-list a .mono {
  flex: none;
  font-size: 12px;
  color: var(--winter-ink);
  letter-spacing: .06em;
}

.page-privacy .privacy-index-list a:hover,
.page-privacy .privacy-index-list a:focus-visible {
  color: var(--ink);
  border-left-color: var(--winter);
  background: rgba(127, 166, 160, .1);
  outline: none;
}

.page-privacy .privacy-index-note {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--ink-2);
}

.page-privacy .privacy-index-note a {
  color: var(--summer-ink);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--line);
}

.page-privacy .privacy-index-note a:hover {
  text-decoration-color: var(--summer);
}

/* ---------- 章节 ---------- */
.page-privacy .privacy-content {
  min-width: 0;
  max-width: 46em;
}

.page-privacy .privacy-section {
  padding-block: clamp(24px, 3.4vw, 38px);
  border-top: 1px solid var(--line-soft);
}

.page-privacy .privacy-section:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-privacy .privacy-section:last-child {
  border-bottom: 1px solid var(--line-soft);
  padding-bottom: clamp(24px, 3.4vw, 38px);
}

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

.page-privacy .privacy-sec-num {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex: none;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--ink-2);
}

.page-privacy .privacy-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--winter);
  display: inline-block;
}

.page-privacy .privacy-section:nth-of-type(2) .privacy-dot { background: var(--spring); }
.page-privacy .privacy-section:nth-of-type(3) .privacy-dot { background: var(--summer); }
.page-privacy .privacy-section:nth-of-type(4) .privacy-dot { background: var(--autumn); }
.page-privacy .privacy-section:nth-of-type(5) .privacy-dot { background: var(--winter); }
.page-privacy .privacy-section:nth-of-type(6) .privacy-dot { background: var(--mark); }

.page-privacy .privacy-section h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(20px, 2.6vw, 28px);
  line-height: 1.35;
  letter-spacing: -.005em;
  color: var(--ink);
}

.page-privacy .privacy-summary {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.9;
  color: var(--ink-2);
}

.page-privacy .privacy-disclosure {
  border: 1px solid var(--line);
  border-radius: var(--pr-radius);
  background: var(--paper);
}

.page-privacy .privacy-disclosure summary {
  padding: 12px 16px;
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 600;
  color: var(--summer-ink);
  cursor: pointer;
  list-style: none;
}

.page-privacy .privacy-disclosure summary::-webkit-details-marker {
  display: none;
}

.page-privacy .privacy-disclosure summary::after {
  content: "＋";
  float: right;
  font-family: var(--font-mono);
  color: var(--ink-2);
}

.page-privacy .privacy-disclosure[open] summary::after {
  content: "－";
  color: var(--winter-ink);
}

.page-privacy .privacy-disclosure summary:focus-visible {
  outline: 2px solid var(--winter);
  outline-offset: 2px;
}

.page-privacy .privacy-disclosure .disclosure-body {
  padding: 4px 16px 18px;
  border-top: 1px solid var(--line-soft);
}

.page-privacy .privacy-disclosure .disclosure-body p {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink-2);
}

.page-privacy .privacy-list {
  list-style: none;
  margin: 8px 0 0;
  padding: 0;
}

.page-privacy .privacy-list li {
  position: relative;
  padding: 10px 0 10px 18px;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-2);
  border-bottom: 1px dashed var(--line-soft);
}

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

.page-privacy .privacy-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 20px;
  width: 6px;
  height: 1px;
  background: var(--winter);
}

.page-privacy .privacy-list strong {
  display: inline;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--ink);
}

.page-privacy .disclosure-body a,
.page-privacy .privacy-foot-note a {
  color: var(--summer-ink);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--line);
}

.page-privacy .disclosure-body a:hover,
.page-privacy .privacy-foot-note a:hover {
  text-decoration-color: var(--mark);
}

/* ---------- 版本章节 ---------- */
.page-privacy .privacy-section--version .privacy-summary {
  margin-bottom: 20px;
}

.page-privacy .privacy-link-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-privacy .privacy-foot-note {
  margin: 20px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-2);
}

/* ---------- 返回顶部 ---------- */
.page-privacy .privacy-top {
  position: fixed;
  right: 16px;
  bottom: 18px;
  z-index: 20;
  display: inline-flex;
  align-items: center;
  padding: 9px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 999px;
  text-decoration: none;
  box-shadow: var(--shadow-soft);
  transition: border-color .16s var(--ease), color .16s var(--ease);
}

.page-privacy .privacy-top:hover,
.page-privacy .privacy-top:focus-visible {
  border-color: var(--winter);
  color: var(--winter-ink);
  outline: none;
}

/* ---------- 显现动效 ---------- */
.page-privacy [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity .32s var(--ease), transform .32s var(--ease);
}

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

@media (prefers-reduced-motion: reduce) {
  .page-privacy [data-reveal],
  .page-privacy .privacy-index-list a,
  .page-privacy .privacy-top {
    transition: none;
    opacity: 1;
    transform: none;
  }
}

/* ---------- 平板及以上 ---------- */
@media (min-width: 780px) {
  .page-privacy .privacy-hero-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  }

  .page-privacy .privacy-hero-art {
    align-self: end;
  }
}

@media (min-width: 960px) {
  .page-privacy .privacy-body {
    grid-template-columns: var(--pr-index-w) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 72px);
  }

  .page-privacy .privacy-index {
    position: sticky;
    top: calc(var(--header-h) + 28px);
  }

  .page-privacy .privacy-top {
    right: 28px;
    bottom: 28px;
  }
}

/* ---------- 打印 ---------- */
@media print {
  .page-privacy .privacy-hero::before,
  .page-privacy .privacy-hero-art::after,
  .page-privacy .privacy-top,
  .page-privacy .privacy-link-row {
    display: none;
  }

  .page-privacy .privacy-index {
    position: static;
  }

  .page-privacy .privacy-body {
    display: block;
    padding-block: 12px;
  }

  .page-privacy .privacy-disclosure[open] .disclosure-body,
  .page-privacy .privacy-disclosure .disclosure-body {
    display: block;
  }

  .page-privacy .privacy-section {
    break-inside: avoid;
    border-top: 1px solid #ccc;
  }
}
</main>