.page-privacy {
  --prv-gap: clamp(20px, 3.6vw, 40px);
  --prv-radius: var(--bx-radius-m);
  background: var(--bx-mist);
  color: var(--bx-ink);
  font-family: var(--bx-font-body);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-privacy .privacy-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(64px, 11vw, 132px) 0 clamp(44px, 7vw, 84px);
  background:
    linear-gradient(158deg, var(--bx-ink) 0%, var(--bx-teal) 62%, var(--bx-field-deep) 100%);
  color: var(--bx-mist);
}

.page-privacy .privacy-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.16;
  filter: grayscale(0.35) contrast(1.1);
}

.page-privacy .privacy-hero__inner {
  position: relative;
  max-width: 1000px;
}

.page-privacy .privacy-hero .breadcrumb {
  margin-bottom: clamp(20px, 4vw, 34px);
  color: var(--bx-on-dark);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
}

.page-privacy .privacy-hero .breadcrumb a {
  color: var(--bx-lime);
  text-decoration: none;
}

.page-privacy .privacy-hero .breadcrumb a:hover,
.page-privacy .privacy-hero .breadcrumb a:focus-visible {
  text-decoration: underline;
}

.page-privacy .privacy-hero .eyebrow {
  color: var(--bx-lime);
  font-family: var(--bx-font-num);
  font-size: 0.76rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  margin: 0 0 14px;
}

.page-privacy .privacy-hero h1 {
  margin: 0 0 clamp(18px, 3vw, 28px);
  max-width: 20ch;
  font-family: var(--bx-font-head);
  font-size: clamp(2rem, 6.4vw, 4rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.012em;
  color: var(--bx-white);
}

.page-privacy .privacy-hero__lead {
  margin: 0;
  max-width: 60ch;
  font-size: clamp(1rem, 2.1vw, 1.125rem);
  line-height: 1.85;
  color: var(--bx-on-dark-strong);
}

.page-privacy .privacy-hero__facts {
  list-style: none;
  margin: clamp(30px, 5vw, 48px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--bx-line-dark);
  border: 1px solid var(--bx-line-dark);
  border-radius: var(--prv-radius);
  overflow: hidden;
}

.page-privacy .privacy-hero__facts li {
  background: rgba(14, 27, 42, 0.55);
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-privacy .privacy-hero__fact-num {
  font-family: var(--bx-font-num);
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1;
  color: var(--bx-lime);
}

.page-privacy .privacy-hero__fact-text {
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--bx-on-dark);
}

/* ---------- 主体栅格 ---------- */
.page-privacy .privacy-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--prv-gap);
  padding: clamp(40px, 6.5vw, 84px) 0 clamp(56px, 8vw, 104px);
}

/* ---------- 侧边索引 ---------- */
.page-privacy .privacy-index {
  min-width: 0;
}

.page-privacy .privacy-index__title {
  margin: 0 0 12px;
  font-family: var(--bx-font-num);
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--bx-slate);
}

.page-privacy .privacy-index .index-nav {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 6px;
  scrollbar-width: thin;
}

.page-privacy .privacy-index .index-nav__link {
  flex: 0 0 auto;
  padding: 9px 14px;
  border: 1px solid var(--bx-line);
  border-radius: var(--bx-pill);
  background: var(--bx-white);
  color: var(--bx-ink);
  font-size: 0.85rem;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color 0.25s var(--bx-ease), color 0.25s var(--bx-ease),
    background-color 0.25s var(--bx-ease);
}

.page-privacy .privacy-index .index-nav__link:hover,
.page-privacy .privacy-index .index-nav__link:focus-visible {
  border-color: var(--bx-field);
  color: var(--bx-field-deep);
}

.page-privacy .privacy-index .index-nav__link.is-active {
  background: var(--bx-field);
  border-color: var(--bx-field);
  color: var(--bx-white);
}

.page-privacy .privacy-index__top {
  margin-top: 14px;
  display: inline-flex;
}

/* ---------- 章节卡片 ---------- */
.page-privacy .privacy-doc {
  min-width: 0;
}

.page-privacy .privacy-chapter {
  position: relative;
  background: var(--bx-white);
  border: 1px solid var(--bx-line-soft);
  border-radius: var(--prv-radius);
  box-shadow: var(--bx-shadow-s);
  padding: clamp(22px, 3.4vw, 42px);
  margin-bottom: clamp(18px, 2.8vw, 30px);
  scroll-margin-top: 110px;
}

.page-privacy .privacy-chapter::before {
  content: "";
  position: absolute;
  top: 0;
  left: clamp(22px, 3.4vw, 42px);
  width: 46px;
  height: 3px;
  background: var(--bx-lime);
  border-radius: 0 0 3px 3px;
}

.page-privacy .privacy-chapter__num {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0 0 10px;
  font-family: var(--bx-font-num);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--bx-field);
}

.page-privacy .privacy-chapter__num::after {
  content: "";
  flex: 1 1 auto;
  height: 1px;
  background: var(--bx-line);
}

.page-privacy .privacy-chapter h2 {
  margin: 0 0 clamp(14px, 2vw, 20px);
  font-family: var(--bx-font-serif);
  font-size: clamp(1.4rem, 3.2vw, 2rem);
  font-weight: 600;
  line-height: 1.25;
  color: var(--bx-ink);
}

.page-privacy .privacy-chapter h3 {
  margin: 0 0 8px;
  font-family: var(--bx-font-head);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--bx-field-deep);
}

.page-privacy .privacy-chapter p {
  margin: 0 0 14px;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--bx-ink);
}

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

.page-privacy .privacy-chapter a {
  color: var(--bx-field-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-privacy .privacy-chapter a:hover,
.page-privacy .privacy-chapter a:focus-visible {
  color: var(--bx-orange-deep);
}

.page-privacy .privacy-note {
  margin-top: 18px;
  padding: 16px 18px;
  border-left: 3px solid var(--bx-teal);
  background: var(--bx-mist);
  border-radius: 0 var(--bx-radius-s) var(--bx-radius-s) 0;
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--bx-ink);
}

/* ---------- 列表 ---------- */
.page-privacy .privacy-list {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-privacy .privacy-list li {
  position: relative;
  padding-left: 26px;
  font-size: 1rem;
  line-height: 1.78;
  color: var(--bx-ink);
}

.page-privacy .privacy-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 10px;
  height: 10px;
  border: 2px solid var(--bx-field);
  border-radius: 2px;
  transform: rotate(45deg);
}

.page-privacy .privacy-list strong {
  font-weight: 700;
  color: var(--bx-field-deep);
}

/* ---------- 用途与权利小格 ---------- */
.page-privacy .privacy-uses,
.page-privacy .privacy-rights {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 6px 0 0;
  background: var(--bx-line-soft);
  border: 1px solid var(--bx-line-soft);
  border-radius: var(--bx-radius-s);
  overflow: hidden;
}

.page-privacy .privacy-uses__item,
.page-privacy .privacy-rights__item {
  background: var(--bx-white);
  padding: 18px 20px;
}

.page-privacy .privacy-uses__item p,
.page-privacy .privacy-rights__item p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.72;
  color: var(--bx-slate);
}

/* ---------- 存储用途表 ---------- */
.page-privacy .privacy-table {
  margin: 6px 0 0;
  border: 1px solid var(--bx-line-soft);
  border-radius: var(--bx-radius-s);
  overflow: hidden;
}

.page-privacy .privacy-table__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 16px 18px;
  border-top: 1px solid var(--bx-line-soft);
  background: var(--bx-white);
}

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

.page-privacy .privacy-table__row--head {
  display: none;
}

.page-privacy .privacy-table__key {
  font-family: var(--bx-font-num);
  font-size: 0.86rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--bx-field);
}

.page-privacy .privacy-table__val {
  font-family: var(--bx-font-num);
  font-size: 0.82rem;
  color: var(--bx-orange-deep);
}

.page-privacy .privacy-table span[role="cell"] {
  font-size: 0.94rem;
  line-height: 1.65;
  color: var(--bx-ink);
}

/* ---------- 联系区 ---------- */
.page-privacy .privacy-contact {
  margin-top: 22px;
  padding: clamp(20px, 3vw, 30px);
  border-radius: var(--bx-radius-m);
  border: 1px solid var(--bx-line-dark);
  background: linear-gradient(150deg, var(--bx-ink) 0%, var(--bx-teal) 100%);
  color: var(--bx-mist);
}

.page-privacy .privacy-contact__label {
  margin: 0 0 14px;
  font-family: var(--bx-font-num);
  font-size: 0.74rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--bx-lime);
}

.page-privacy .privacy-contact__line {
  margin: 0 0 8px;
  font-size: 0.98rem;
  line-height: 1.7;
  color: var(--bx-on-dark-strong);
}

.page-privacy .privacy-contact__mono {
  font-family: var(--bx-font-num);
  font-weight: 600;
  color: var(--bx-lime);
  overflow-wrap: anywhere;
}

.page-privacy .privacy-contact__hint {
  margin: 14px 0 0;
  font-size: 0.9rem;
  line-height: 1.72;
  color: var(--bx-on-dark);
}

.page-privacy .privacy-contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

/* ---------- 可展开内容 ---------- */
.page-privacy .privacy-more {
  margin-top: 18px;
  border-top: 1px solid var(--bx-line-soft);
  padding-top: 14px;
}

.page-privacy .privacy-more > summary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  list-style: none;
  font-family: var(--bx-font-num);
  font-size: 0.82rem;
  letter-spacing: 0.1em;
  color: var(--bx-field);
}

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

.page-privacy .privacy-more > summary::after {
  content: "+";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border: 1px solid var(--bx-line);
  border-radius: 50%;
  font-size: 0.9rem;
  line-height: 1;
  color: var(--bx-field-deep);
  transition: transform 0.25s var(--bx-ease), background-color 0.25s var(--bx-ease);
}

.page-privacy .privacy-more[open] > summary::after {
  content: "−";
  background: var(--bx-lime);
  border-color: var(--bx-lime);
}

.page-privacy .privacy-more > summary:hover,
.page-privacy .privacy-more > summary:focus-visible {
  color: var(--bx-field-deep);
}

.page-privacy .privacy-more p {
  margin-top: 12px;
  font-size: 0.94rem;
  line-height: 1.78;
  color: var(--bx-slate);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-privacy .privacy-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-privacy .privacy-uses,
  .page-privacy .privacy-rights {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-privacy .privacy-grid {
    grid-template-columns: 250px minmax(0, 1fr);
    gap: clamp(32px, 5vw, 72px);
  }

  .page-privacy .privacy-index {
    position: sticky;
    top: 104px;
    align-self: start;
  }

  .page-privacy .privacy-index .index-nav {
    flex-direction: column;
    overflow: visible;
    gap: 2px;
  }

  .page-privacy .privacy-index .index-nav__link {
    border-radius: var(--bx-radius-s);
    border-color: transparent;
    background: transparent;
    padding: 10px 12px;
    white-space: normal;
    border-left: 2px solid transparent;
  }

  .page-privacy .privacy-index .index-nav__link:hover,
  .page-privacy .privacy-index .index-nav__link:focus-visible {
    background: var(--bx-white);
    border-left-color: var(--bx-sprout);
  }

  .page-privacy .privacy-index .index-nav__link.is-active {
    background: var(--bx-white);
    border-color: transparent;
    border-left-color: var(--bx-field);
    color: var(--bx-field-deep);
    box-shadow: var(--bx-shadow-s);
  }

  .page-privacy .privacy-table__row {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 2.2fr) minmax(0, 1fr);
    align-items: center;
    gap: 18px;
    padding: 15px 20px;
  }

  .page-privacy .privacy-table__row--head {
    display: grid;
    background: var(--bx-mist);
  }

  .page-privacy .privacy-table__row--head span[role="columnheader"] {
    font-family: var(--bx-font-num);
    font-size: 0.72rem;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--bx-slate);
  }

  .page-privacy .privacy-chapter {
    scroll-margin-top: 128px;
  }
}

@media (min-width: 1180px) {
  .page-privacy .privacy-uses,
  .page-privacy .privacy-rights {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-index .index-nav__link,
  .page-privacy .privacy-more > summary::after {
    transition: none;
  }
}