.page-privacy {
  --pri-measure: 34em;
  --pri-rail: 232px;
  position: relative;
}

/* ---------- 顶部氛围 ---------- */
.page-privacy .privacy-hero {
  position: relative;
  isolation: isolate;
  display: flex;
  align-items: flex-end;
  min-height: clamp(440px, 66vh, 660px);
  overflow: hidden;
  background: var(--ink-900);
}

.page-privacy .privacy-hero__img {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
  opacity: .58;
}

.page-privacy .privacy-hero__scan {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(10, 17, 34, .28) 0%, rgba(10, 17, 34, .74) 46%, var(--ink-900) 100%),
    linear-gradient(116deg, rgba(37, 230, 200, .12) 0%, transparent 42%),
    linear-gradient(288deg, rgba(255, 106, 43, .18) 0%, transparent 40%);
}

.page-privacy .privacy-hero::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  z-index: 2;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--orange) 52%, transparent 100%);
}

.page-privacy .privacy-hero__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: clamp(10px, 1.5vw, 18px);
  padding-top: clamp(120px, 20vh, 208px);
  padding-bottom: clamp(40px, 6vw, 76px);
  max-width: 920px;
}

.page-privacy .privacy-hero .breadcrumbs {
  margin-bottom: clamp(6px, 1vw, 12px);
  color: var(--silver);
  font-size: 13px;
}

.page-privacy .privacy-hero .breadcrumbs__link {
  color: var(--silver);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

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

.page-privacy .privacy-hero .breadcrumbs__item + .breadcrumbs__item::before {
  content: "/";
  margin: 0 8px;
  color: var(--hairline);
}

.page-privacy .privacy-hero .breadcrumbs__current {
  color: var(--paper-hi);
}

.page-privacy .privacy-hero__title {
  margin: 0;
  max-width: 20ch;
  font-size: clamp(32px, 6vw, 70px);
  line-height: 1.05;
  letter-spacing: -.025em;
  color: var(--paper-hi);
}

.page-privacy .privacy-hero__lede {
  max-width: 54ch;
  margin: 0;
  font-size: clamp(15px, 1.5vw, 18px);
  line-height: 1.85;
  color: var(--silver);
}

.page-privacy .privacy-hero__note {
  margin: 4px 0 0;
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--cyan);
}

/* ---------- 主体骨架 ---------- */
.page-privacy .privacy-wrap {
  padding: clamp(44px, 7vw, 96px) 0 clamp(56px, 8vw, 112px);
}

.page-privacy .privacy-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 5vw, 64px);
}

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

/* ---------- 右侧章节栏 ---------- */
.page-privacy .privacy-rail {
  order: -1;
  min-width: 0;
  border-top: 1px solid var(--hairline);
  padding-top: 14px;
}

.page-privacy .privacy-rail__title {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--silver);
}

.page-privacy .privacy-rail__list {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: none;
}

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

.page-privacy .privacy-rail__link {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: none;
  padding: 10px 13px;
  font-size: 14px;
  line-height: 1.4;
  white-space: nowrap;
  text-decoration: none;
  color: var(--silver);
  border-left: 2px solid var(--hairline);
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}

.page-privacy .privacy-rail__link .mono-num {
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--magenta);
}

.page-privacy .privacy-rail__link:hover {
  color: var(--paper-hi);
  border-left-color: var(--cyan);
}

.page-privacy .privacy-rail__link.is-current {
  color: var(--paper-hi);
  background: rgba(255, 106, 43, .1);
  border-left-color: var(--orange);
}

.page-privacy .privacy-rail__link.is-current .mono-num {
  color: var(--orange);
}

/* ---------- 章节 ---------- */
.page-privacy .privacy-sec {
  margin-bottom: clamp(40px, 6vw, 76px);
  scroll-margin-top: calc(var(--header-h) + 28px);
}

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

.page-privacy .privacy-sec__head {
  display: flex;
  align-items: flex-start;
  gap: clamp(12px, 2vw, 20px);
  padding-top: 16px;
  margin-bottom: clamp(18px, 2.6vw, 28px);
  border-top: 1px solid var(--orange);
}

.page-privacy .privacy-sec__num {
  flex: none;
  padding-top: 5px;
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--orange);
}

.page-privacy .privacy-sec__title {
  margin: 0;
  font-size: clamp(21px, 2.9vw, 31px);
  line-height: 1.32;
  letter-spacing: -.01em;
  color: var(--paper-hi);
}

.page-privacy .privacy-sec__body {
  padding: clamp(20px, 3.2vw, 38px);
  background: var(--paper);
  color: var(--ink-text);
}

.page-privacy .privacy-sec__lead {
  margin: 0 0 4px;
  max-width: var(--pri-measure);
  font-size: 15px;
  line-height: 1.9;
  color: rgba(23, 18, 15, .72);
}

/* ---------- 展开条目 ---------- */
.page-privacy .accordion {
  margin-top: 18px;
  border-top: 1px solid rgba(23, 18, 15, .14);
}

.page-privacy .accordion__item {
  border-bottom: 1px solid rgba(23, 18, 15, .14);
}

.page-privacy .accordion__trigger {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 16px 0;
  background: none;
  border: 0;
  font: inherit;
  font-size: 16px;
  font-weight: 600;
  text-align: left;
  color: var(--ink-text);
  cursor: pointer;
  transition: color var(--t-fast) var(--ease);
}

.page-privacy .accordion__trigger:hover {
  color: var(--orange);
}

.page-privacy .accordion__index {
  flex: none;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--orange);
}

.page-privacy .accordion__icon {
  position: relative;
  flex: none;
  margin-left: auto;
  width: 13px;
  height: 13px;
}

.page-privacy .accordion__icon::before,
.page-privacy .accordion__icon::after {
  content: "";
  position: absolute;
  background: currentColor;
  transition: transform var(--t-mid) var(--ease);
}

.page-privacy .accordion__icon::before {
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
}

.page-privacy .accordion__icon::after {
  top: 0;
  bottom: 0;
  left: 50%;
  width: 1px;
}

.page-privacy .accordion__item[data-open="true"] .accordion__icon::after {
  transform: scaleY(0);
}

.page-privacy .accordion__panel {
  overflow: hidden;
}

.page-privacy .accordion__body {
  max-width: var(--pri-measure);
  padding: 0 0 20px;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(23, 18, 15, .78);
}

/* ---------- 条目列表 ---------- */
.page-privacy .privacy-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-privacy .privacy-list > li {
  padding: 14px 18px;
  background: var(--paper-hi);
  border-left: 2px solid var(--orange);
  font-size: 15px;
  line-height: 1.85;
  color: rgba(23, 18, 15, .8);
}

.page-privacy .privacy-list__k {
  display: block;
  margin-bottom: 3px;
  font-weight: 700;
  color: var(--ink-text);
  letter-spacing: .01em;
}

.page-privacy .privacy-list .link-arrow {
  color: var(--ink-text);
  border-bottom: 1px solid var(--orange);
  text-decoration: none;
  transition: color var(--t-fast) var(--ease);
}

.page-privacy .privacy-list .link-arrow:hover {
  color: var(--orange);
}

/* ---------- 偏好示例 ---------- */
.page-privacy .privacy-demo {
  margin-top: 20px;
}

.page-privacy .privacy-demo__switch {
  display: flex;
  flex-wrap: wrap;
  width: fit-content;
  max-width: 100%;
  border: 1px solid rgba(23, 18, 15, .22);
}

.page-privacy .segmented__btn {
  padding: 9px 16px;
  background: transparent;
  border: 0;
  font: inherit;
  font-size: 14px;
  color: rgba(23, 18, 15, .6);
  cursor: pointer;
  transition: background var(--t-fast) var(--ease), color var(--t-fast) var(--ease);
}

.page-privacy .segmented__btn + .segmented__btn {
  border-left: 1px solid rgba(23, 18, 15, .22);
}

.page-privacy .segmented__btn:hover {
  color: var(--ink-text);
}

.page-privacy .segmented__btn.is-active,
.page-privacy .segmented__btn[aria-selected="true"] {
  background: var(--ink-text);
  color: var(--paper-hi);
}

.page-privacy .privacy-demo__panels {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.page-privacy .privacy-demo__panel {
  padding: 16px 18px;
  background: var(--paper-hi);
  border: 1px solid rgba(23, 18, 15, .12);
}

.page-privacy .privacy-demo__label {
  margin: 0;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--orange);
}

.page-privacy .privacy-demo__panel p + p {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(23, 18, 15, .76);
}

/* ---------- 底部行动区 ---------- */
.page-privacy .privacy-cta-outer {
  margin-top: clamp(48px, 7vw, 88px);
}

.page-privacy .privacy-cta {
  display: grid;
  gap: 22px;
  padding: clamp(24px, 4vw, 44px);
  background: var(--ink-800);
  border: 1px solid var(--hairline);
  border-left: 3px solid var(--cyan);
}

.page-privacy .privacy-cta__title {
  margin: 0 0 8px;
  font-size: clamp(20px, 2.7vw, 28px);
  line-height: 1.3;
  color: var(--paper-hi);
}

.page-privacy .privacy-cta__text {
  margin: 0;
  max-width: 48ch;
  font-size: 15px;
  line-height: 1.85;
  color: var(--silver);
}

.page-privacy .privacy-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

/* ---------- 宽屏 ---------- */
@media (min-width: 720px) {
  .page-privacy .privacy-demo__panels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-privacy .privacy-layout {
    grid-template-columns: minmax(0, 1fr) var(--pri-rail);
    align-items: start;
  }

  .page-privacy .privacy-rail {
    order: 0;
    position: sticky;
    top: calc(var(--header-h) + 32px);
    max-height: calc(100vh - var(--header-h) - 64px);
    overflow-y: auto;
    border-top: 0;
    padding-top: 0;
    border-left: 1px solid var(--hairline);
    padding-left: 4px;
  }

  .page-privacy .privacy-rail__list {
    flex-direction: column;
    gap: 0;
    overflow: visible;
  }

  .page-privacy .privacy-rail__link {
    white-space: normal;
  }

  .page-privacy .privacy-cta {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: clamp(24px, 4vw, 56px);
  }
}

@media (min-width: 1280px) {
  .page-privacy .privacy-sec__body {
    padding: 40px clamp(32px, 3vw, 52px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-rail__link,
  .page-privacy .accordion__trigger,
  .page-privacy .accordion__icon::before,
  .page-privacy .accordion__icon::after,
  .page-privacy .segmented__btn,
  .page-privacy .privacy-hero .breadcrumbs__link {
    transition: none;
  }
}
<<<END>>>