.page-privacy {
  --privacy-measure: 66ch;
  --privacy-rule: 3px solid var(--clay);
  background: var(--night);
  color: var(--chalk);
  padding-bottom: clamp(48px, 8vw, 104px);
}

/* ---------- 首屏 ---------- */
.page-privacy .privacy-masthead {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-bottom: 6px solid var(--clay);
  background: linear-gradient(150deg, var(--night) 0%, var(--indigo) 58%, var(--clay-deep) 100%);
}

.page-privacy .privacy-masthead::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(100deg, rgba(11, 31, 26, .95) 0%, rgba(11, 31, 26, .74) 46%, rgba(44, 42, 74, .58) 100%);
}

.page-privacy .privacy-masthead-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-privacy .privacy-masthead-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .34;
  filter: saturate(.72) contrast(1.06);
}

.page-privacy .privacy-masthead-inner {
  position: relative;
  z-index: 2;
  padding: clamp(36px, 7vw, 84px) 0 clamp(34px, 6vw, 68px);
}

.page-privacy .privacy-eyebrow {
  margin-top: clamp(22px, 4vw, 40px);
  color: var(--flag);
}

.page-privacy .privacy-title {
  margin: 10px 0 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(2.3rem, 1.35rem + 3.8vw, 4rem);
  line-height: 1.02;
  letter-spacing: -.02em;
  max-width: 14ch;
}

.page-privacy .privacy-lede {
  margin: clamp(18px, 3vw, 28px) 0 0;
  max-width: 60ch;
  font-size: var(--step-1);
  line-height: 1.85;
  color: rgba(234, 242, 240, .88);
}

/* ---------- 主体布局 ---------- */
.page-privacy .privacy-section {
  padding-top: clamp(36px, 6vw, 72px);
}

.page-privacy .privacy-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 60px);
}

/* ---------- 章节索引 ---------- */
.page-privacy .clause-index-label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-privacy .clause-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
}

.page-privacy .clause-index-link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 12px 14px;
  border: 2px solid var(--line);
  border-left: 4px solid var(--clay);
  background: rgba(18, 61, 46, .42);
  color: var(--chalk);
  text-decoration: none;
  font-size: var(--step--1);
  line-height: 1.5;
  box-shadow: 4px 4px 0 rgba(0, 0, 0, .45);
  transition: transform .16s ease, border-color .16s ease, background-color .16s ease;
}

.page-privacy .clause-index-link:hover,
.page-privacy .clause-index-link:focus-visible {
  transform: translate(-2px, -2px);
  border-color: var(--flag);
  background: rgba(110, 42, 32, .55);
  box-shadow: 6px 6px 0 rgba(0, 0, 0, .5);
}

.page-privacy .clause-index-num {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: .1em;
  color: var(--flag);
}

/* ---------- 条款 ---------- */
.page-privacy .clause {
  margin-top: clamp(32px, 4.5vw, 52px);
  padding-top: clamp(22px, 3vw, 36px);
  border-top: var(--privacy-rule);
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-privacy .clause:first-child {
  margin-top: 0;
}

.page-privacy .clause:target {
  background: rgba(168, 69, 47, .12);
  box-shadow: -14px 0 0 rgba(168, 69, 47, .12);
}

.page-privacy .clause-num {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  font-weight: 700;
  letter-spacing: .28em;
  color: var(--flag);
}

.page-privacy .clause-title {
  margin: 0 0 18px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: var(--step-2);
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--chalk);
}

.page-privacy .clause p {
  max-width: var(--privacy-measure);
  margin: 0 0 16px;
  font-size: var(--step-0);
  line-height: 1.9;
  color: rgba(234, 242, 240, .86);
}

.page-privacy .clause p:last-child {
  margin-bottom: 0;
}

.page-privacy .clause-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: grid;
  gap: 12px;
  max-width: var(--privacy-measure);
}

.page-privacy .clause-list li {
  position: relative;
  padding-left: 26px;
  font-size: var(--step-0);
  line-height: 1.85;
  color: rgba(234, 242, 240, .86);
}

.page-privacy .clause-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 14px;
  height: 2px;
  background: var(--clay);
}

.page-privacy .clause-list strong {
  color: var(--chalk);
  font-weight: 700;
}

.page-privacy .privacy-mail {
  color: var(--flag);
  text-decoration: underline;
  text-underline-offset: 3px;
  word-break: break-all;
}

.page-privacy .clause a {
  color: var(--flag);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

/* ---------- 数据流示意 ---------- */
.page-privacy .privacy-flow {
  margin: 8px 0 26px;
  padding: clamp(14px, 2.4vw, 24px);
  border: 2px solid var(--line-strong);
  background: rgba(18, 61, 46, .5);
  box-shadow: var(--shadow-mid);
}

.page-privacy .privacy-flow svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-privacy .flow-box {
  fill: var(--night);
  stroke: var(--line-strong);
  stroke-width: 2;
}

.page-privacy .flow-box--accent {
  fill: var(--clay-deep);
  stroke: var(--clay);
}

.page-privacy .flow-label {
  fill: var(--chalk);
  font-family: var(--font-head);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: .02em;
}

.page-privacy .flow-sub {
  fill: var(--mist);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
}

.page-privacy .flow-arrow {
  stroke: var(--flag);
  stroke-width: 2;
  fill: none;
}

.page-privacy .flow-tip {
  fill: var(--flag);
}

.page-privacy .privacy-flow figcaption {
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--mist);
}

/* ---------- 补充说明 ---------- */
.page-privacy .privacy-supp {
  margin-top: clamp(40px, 6vw, 72px);
  padding-top: clamp(22px, 3vw, 36px);
  border-top: var(--privacy-rule);
  scroll-margin-top: calc(var(--header-h) + 24px);
}

.page-privacy .privacy-supp .disclosure {
  margin-bottom: 12px;
  border: 2px solid var(--line-strong);
  background: rgba(18, 61, 46, .44);
  box-shadow: 4px 4px 0 rgba(0, 0, 0, .42);
}

.page-privacy .privacy-supp .disclosure-trigger {
  cursor: pointer;
  padding: 14px 16px;
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: .04em;
  color: var(--chalk);
  list-style: none;
}

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

.page-privacy .privacy-supp .disclosure-trigger::before {
  content: "+";
  display: inline-block;
  width: 1.2em;
  color: var(--flag);
  font-weight: 700;
}

.page-privacy .privacy-supp .disclosure[open] .disclosure-trigger::before {
  content: "–";
}

.page-privacy .privacy-supp .disclosure-panel {
  padding: 0 16px 18px 32px;
  font-size: var(--step--1);
  line-height: 1.85;
  color: rgba(234, 242, 240, .82);
}

.page-privacy .privacy-supp .disclosure-panel p {
  margin: 0;
  max-width: var(--privacy-measure);
}

.page-privacy .privacy-supp .disclosure-panel a {
  color: var(--flag);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 桌面端：左刻度 + 右条款 ---------- */
@media (min-width: 960px) {
  .page-privacy .privacy-layout {
    grid-template-columns: 236px minmax(0, 1fr);
    align-items: start;
  }

  .page-privacy .clause-index {
    position: sticky;
    top: calc(var(--header-h) + 20px);
    padding-right: 6px;
  }

  .page-privacy .clause-index-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .page-privacy .privacy-lede {
    font-size: var(--step-0);
  }

  .page-privacy .clause-title {
    font-size: var(--step-1);
  }

  .page-privacy .clause-index-link {
    box-shadow: 3px 3px 0 rgba(0, 0, 0, .45);
  }

  .page-privacy .privacy-supp .disclosure-panel {
    padding-left: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .clause-index-link {
    transition: none;
  }
}