.page-privacy {
  --privacy-measure: 38rem;
  --privacy-gutter: 84px;
  background: var(--paper);
  color: var(--deep);
  overflow-x: hidden;
}

.page-privacy :focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

/* ── 阅读进度线 ───────────────────────────── */
.page-privacy .read-progress {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 3px;
  background: rgba(6, 26, 51, 0.07);
  z-index: 4;
  pointer-events: none;
}

.page-privacy .read-progress__bar {
  display: block;
  width: 100%;
  height: 100%;
  background: var(--cyan);
  transform: scaleY(0);
  transform-origin: top center;
}

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

@supports (animation-timeline: scroll()) {
  .page-privacy .read-progress__bar {
    animation: privacy-scroll-grow linear both;
    animation-timeline: scroll(root);
  }
}

/* ── 首屏海报带 ───────────────────────────── */
.page-privacy .privacy-hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + 44px) 0 56px;
  background: linear-gradient(162deg, var(--deep) 0%, var(--navy) 68%, #10335c 100%);
  color: var(--paper);
}

.page-privacy .privacy-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(to right, var(--rule-soft) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(to bottom, var(--rule-soft) 0 1px, transparent 1px 64px);
  opacity: 0.6;
  pointer-events: none;
}

.page-privacy .privacy-hero__diagonal {
  position: absolute;
  left: 42%;
  right: -14%;
  bottom: -34%;
  height: 340px;
  transform: skewY(-9deg);
  background: linear-gradient(90deg, rgba(20, 224, 200, 0.16), rgba(20, 224, 200, 0) 72%);
  pointer-events: none;
}

.page-privacy .privacy-hero__inner {
  position: relative;
  z-index: 1;
}

.page-privacy .privacy-hero__crumb {
  color: var(--mist);
  margin-bottom: 28px;
}

.page-privacy .privacy-hero__crumb a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-privacy .privacy-hero__crumb a:hover {
  border-bottom-color: var(--cyan);
}

.page-privacy .privacy-hero__eyebrow {
  color: var(--cyan);
  margin: 0 0 14px;
}

.page-privacy .privacy-hero__title {
  font-size: clamp(40px, 9vw, 84px);
  line-height: 0.98;
  letter-spacing: -0.02em;
  margin: 0 0 22px;
  color: var(--paper);
}

.page-privacy .privacy-hero__lede {
  max-width: 44rem;
  color: rgba(245, 248, 251, 0.84);
  font-size: 1.0625rem;
  line-height: 1.8;
  margin: 0;
}

.page-privacy .privacy-hero__quick {
  list-style: none;
  margin: 30px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-privacy .privacy-hero__quick li {
  position: relative;
  padding-left: 20px;
  max-width: 40rem;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: rgba(245, 248, 251, 0.78);
}

.page-privacy .privacy-hero__quick li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 10px;
  height: 2px;
  background: var(--orange);
}

/* ── 正文流 ───────────────────────────────── */
.page-privacy .privacy-flow {
  padding: 40px 0 80px;
}

.page-privacy .privacy-figure {
  margin: 0 0 8px;
}

.page-privacy .privacy-figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  background: var(--navy);
}

.page-privacy .privacy-figure .figure__caption {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--graphite);
  padding-top: 12px;
  border-top: 1px solid var(--grid);
}

.page-privacy .privacy-intro {
  display: grid;
  gap: 32px;
  padding: 40px 0 8px;
}

.page-privacy .privacy-intro__text {
  margin: 0;
  border-left: 2px solid var(--cyan);
  padding-left: 18px;
}

/* ── 目录 ─────────────────────────────────── */
.page-privacy .privacy-toc .eyebrow {
  color: var(--graphite);
  margin: 0;
}

.page-privacy .privacy-toc__list {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  border-top: 1px solid var(--grid);
}

.page-privacy .privacy-toc__list a {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 13px 2px;
  border-bottom: 1px solid var(--grid);
  text-decoration: none;
  color: var(--deep);
  font-weight: 600;
  font-size: 0.9375rem;
  line-height: 1.5;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.page-privacy .privacy-toc__list a:hover {
  color: var(--navy);
  padding-left: 8px;
}

.page-privacy .privacy-toc__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--graphite);
}

/* ── 章节 ─────────────────────────────────── */
.page-privacy .psection {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding-top: 36px;
  margin-top: 40px;
  border-top: 1px solid var(--grid);
}

.page-privacy .psection__index {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--graphite);
  margin: 0;
}

.page-privacy .psection__index::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--cyan);
}

.page-privacy .psection__body {
  min-width: 0;
}

.page-privacy .section-title {
  font-size: clamp(23px, 5vw, 34px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  margin: 0 0 16px;
  color: var(--deep);
}

.page-privacy .psub {
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--deep);
  margin: 26px 0 8px;
  padding-left: 12px;
  border-left: 2px solid var(--cyan);
}

.page-privacy .prose {
  margin: 0 0 14px;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--graphite);
}

.page-privacy .prose strong {
  color: var(--deep);
}

.page-privacy .prose a {
  color: var(--navy);
  text-decoration: none;
  border-bottom: 1px solid var(--cyan);
  padding-bottom: 1px;
}

.page-privacy .prose a:hover {
  color: var(--deep);
  border-bottom-color: var(--orange);
}

.page-privacy .checklist {
  list-style: none;
  margin: 18px 0 6px;
  padding: 0;
}

.page-privacy .checklist li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 12px;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--graphite);
}

.page-privacy .checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 9px;
  height: 2px;
  background: var(--cyan);
}

/* ── 展开收起 ─────────────────────────────── */
.page-privacy details {
  margin-top: 18px;
  border: 1px solid var(--grid);
  border-left: 2px solid var(--orange);
  background: #ffffff;
}

.page-privacy summary {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 15px 18px;
  cursor: pointer;
  font-size: 0.9688rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--deep);
  list-style: none;
}

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

.page-privacy summary::after {
  content: "＋";
  font-family: var(--font-mono);
  color: var(--orange);
  flex: none;
}

.page-privacy details[open] summary::after {
  content: "－";
}

.page-privacy .details-body {
  padding: 0 18px 6px;
  border-top: 1px solid var(--grid);
}

.page-privacy .details-body .prose:first-child {
  margin-top: 14px;
}

/* ── 联系信息 ─────────────────────────────── */
.page-privacy .privacy-contact {
  margin: 22px 0 0;
  border-top: 1px solid var(--grid);
}

.page-privacy .privacy-contact__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 15px 0;
  border-bottom: 1px solid var(--grid);
}

.page-privacy .privacy-contact__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--graphite);
}

.page-privacy .privacy-contact__val {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--deep);
  word-break: break-word;
}

.page-privacy .privacy-contact__note {
  margin-top: 20px;
}

.page-privacy .privacy-legal {
  margin: 36px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--graphite);
}

/* ── 中等屏幕 ─────────────────────────────── */
@media (min-width: 720px) {
  .page-privacy .privacy-intro {
    grid-template-columns: minmax(0, var(--privacy-measure)) minmax(0, 1fr);
    gap: 48px;
    align-items: start;
  }

  .page-privacy .privacy-contact__row {
    grid-template-columns: 132px minmax(0, 1fr);
    gap: 20px;
    align-items: baseline;
  }
}

/* ── 桌面非对称栅格 ───────────────────────── */
@media (min-width: 960px) {
  .page-privacy .psection {
    grid-template-columns: var(--privacy-gutter) minmax(0, var(--privacy-measure));
    column-gap: 28px;
    padding-top: 52px;
    margin-top: 52px;
  }

  .page-privacy .psection__index {
    display: block;
    padding-top: 8px;
  }

  .page-privacy .psection__index::before {
    display: block;
    width: 34px;
    margin-bottom: 14px;
  }

  .page-privacy .privacy-hero {
    padding: calc(var(--header-h) + 72px) 0 84px;
  }

  .page-privacy .read-progress {
    width: 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .read-progress__bar {
    animation: none;
    transform: scaleY(1);
    opacity: 0.45;
  }

  .page-privacy .privacy-toc__list a {
    transition: none;
  }
}