.page-privacy {
  --pv-hair: rgba(42, 74, 80, 0.34);
  --pv-hair-soft: rgba(42, 74, 80, 0.16);
  --pv-body: rgba(11, 47, 54, 0.9);
  --pv-body-soft: rgba(11, 47, 54, 0.74);
  background: var(--c-fog);
  color: var(--c-deep);
}

/* ---------- 首屏 ---------- */

.page-privacy .privacy-hero {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  padding: clamp(26px, 5vw, 52px) 0 clamp(58px, 9vw, 104px);
  background: linear-gradient(158deg, var(--c-ink) 0%, var(--c-deep) 54%, var(--c-tide) 100%);
  color: var(--c-fog);
  clip-path: polygon(0 0, 100% 0, 100% 93%, 0 100%);
}

.page-privacy .privacy-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.22;
  filter: saturate(0.65);
}

.page-privacy .privacy-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    linear-gradient(112deg, rgba(6, 26, 31, 0.94) 0%, rgba(6, 26, 31, 0.66) 46%, rgba(11, 47, 54, 0.34) 100%),
    radial-gradient(120% 70% at 12% 100%, rgba(6, 26, 31, 0.8) 0%, rgba(6, 26, 31, 0) 62%);
}

.page-privacy .privacy-hero__line {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  width: 100%;
  height: 76%;
  pointer-events: none;
}

.page-privacy .privacy-hero__inner {
  position: relative;
  z-index: 2;
}

.page-privacy .breadcrumbs {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: rgba(143, 179, 184, 0.85);
}

.page-privacy .breadcrumbs a {
  color: rgba(234, 243, 242, 0.82);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.18s var(--ease), color 0.18s var(--ease);
}

.page-privacy .breadcrumbs a:hover,
.page-privacy .breadcrumbs a:focus-visible {
  color: var(--c-track);
  border-bottom-color: var(--c-track);
}

.page-privacy .breadcrumbs__sep {
  padding: 0 8px;
  opacity: 0.55;
}

.page-privacy .eyebrow {
  display: inline-block;
  margin: clamp(20px, 3vw, 34px) 0 0;
  padding: 5px 10px;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--c-track);
  border: 1px solid rgba(255, 106, 42, 0.42);
  border-radius: var(--radius);
}

.page-privacy .privacy-hero h1 {
  margin: 16px 0 20px;
  max-width: 17ch;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(31px, 5.6vw, 58px);
  line-height: 1.12;
  letter-spacing: -0.035em;
  color: var(--c-fog);
}

.page-privacy .lede {
  max-width: 62ch;
  margin: 0;
  font-family: var(--font-body);
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
  color: rgba(234, 243, 242, 0.82);
}

.page-privacy .privacy-meta {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  margin: clamp(28px, 4vw, 44px) 0 0;
  border-top: 1px solid rgba(42, 74, 80, 0.86);
}

.page-privacy .privacy-meta__item {
  padding: 14px 0;
  border-bottom: 1px solid rgba(42, 74, 80, 0.5);
}

.page-privacy .privacy-meta dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--c-mist);
}

.page-privacy .privacy-meta dd {
  margin: 6px 0 0;
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--c-fog);
}

/* ---------- 文档骨架 ---------- */

.page-privacy .privacy-doc {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 44px);
  padding-top: clamp(44px, 7vw, 88px);
  padding-bottom: clamp(56px, 8vw, 96px);
}

/* ---------- 章节索引 ---------- */

.page-privacy .privacy-toc {
  border-top: 2px solid var(--c-track-deep);
  padding-top: 14px;
}

.page-privacy .privacy-toc__title {
  margin: 0 0 12px;
  font-size: 11.5px;
  letter-spacing: 0.2em;
  color: var(--c-tide);
}

.page-privacy .privacy-toc__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 0 0 6px;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-privacy .privacy-toc__list > li {
  flex: 0 0 auto;
}

.page-privacy .privacy-toc__list a {
  display: grid;
  grid-template-columns: auto auto;
  align-items: baseline;
  gap: 8px;
  padding: 8px 12px;
  font-size: 13.5px;
  line-height: 1.4;
  white-space: nowrap;
  text-decoration: none;
  color: var(--c-tide);
  background: rgba(42, 74, 80, 0.06);
  border-top: 2px solid transparent;
  border-radius: var(--radius);
  transition: color 0.18s var(--ease), background 0.18s var(--ease), border-color 0.18s var(--ease);
}

.page-privacy .privacy-toc__list a .mono {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--c-steel);
}

.page-privacy .privacy-toc__list a:hover,
.page-privacy .privacy-toc__list a:focus-visible {
  color: var(--c-deep);
  background: rgba(42, 74, 80, 0.12);
}

.page-privacy .privacy-toc__list a[aria-current="true"] {
  color: var(--c-track-deep);
  background: rgba(255, 106, 42, 0.1);
  border-top-color: var(--c-track-deep);
}

.page-privacy .privacy-toc__list a[aria-current="true"] .mono {
  color: var(--c-track-deep);
}

.page-privacy .privacy-toc__note {
  margin: 16px 0 0;
  padding-left: 12px;
  font-size: 11.5px;
  line-height: 1.8;
  color: var(--pv-body-soft);
  border-left: 2px solid var(--pv-hair);
}

/* ---------- 章节 ---------- */

.page-privacy .privacy-body {
  display: grid;
  gap: clamp(32px, 4.6vw, 56px);
  min-width: 0;
}

.page-privacy .privacy-sec {
  padding-top: clamp(26px, 3.6vw, 40px);
  border-top: 1px solid var(--pv-hair-soft);
}

.page-privacy .privacy-body > .privacy-sec:first-child {
  padding-top: 0;
  border-top: none;
}

.page-privacy .privacy-sec__head {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  align-items: start;
  gap: 10px;
  margin-bottom: 16px;
}

.page-privacy .privacy-sec__num {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.16em;
  line-height: 2.1;
  color: var(--c-track-deep);
}

.page-privacy .privacy-sec h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 2.9vw, 29px);
  line-height: 1.32;
  letter-spacing: -0.025em;
  color: var(--c-deep);
}

.page-privacy .privacy-sec__main > p {
  max-width: 64ch;
  margin: 0 0 16px;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.82;
  color: var(--pv-body);
}

.page-privacy .privacy-sec h3 {
  margin: 0 0 6px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--c-deep);
}

/* ---------- 信息条目 ---------- */

.page-privacy .privacy-facts {
  margin: 20px 0 8px;
  border-top: 1px solid var(--pv-hair);
}

.page-privacy .privacy-facts--tight {
  margin-top: 4px;
}

.page-privacy .privacy-facts__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--pv-hair-soft);
}

.page-privacy .privacy-facts dt {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.14em;
  color: var(--c-tide);
}

.page-privacy .privacy-facts dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--pv-body);
}

/* ---------- 旁注 ---------- */

.page-privacy .aside-note {
  max-width: 62ch;
  margin: 20px 0 0;
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.85;
  color: var(--pv-body-soft);
  background: rgba(42, 74, 80, 0.06);
  border-left: 2px solid var(--c-track-deep);
}

/* ---------- 三步流程 ---------- */

.page-privacy .privacy-flow {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  margin: 24px 0;
  padding: 0;
  list-style: none;
  counter-reset: pv-step;
}

.page-privacy .privacy-step {
  position: relative;
  padding-top: 18px;
  border-top: 2px solid rgba(42, 74, 80, 0.24);
}

.page-privacy .privacy-step::before {
  content: "";
  position: absolute;
  top: -5px;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-steel);
}

.page-privacy .privacy-step:first-child {
  border-top-color: var(--c-track-deep);
}

.page-privacy .privacy-step:first-child::before {
  background: var(--c-track-deep);
  box-shadow: 0 0 0 3px rgba(255, 106, 42, 0.16);
}

.page-privacy .privacy-step__idx {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--c-tide);
}

.page-privacy .privacy-step p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--pv-body-soft);
}

/* ---------- 用途列表 ---------- */

.page-privacy .privacy-uses {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
  margin: 22px 0;
  padding: 0;
  list-style: none;
}

.page-privacy .privacy-uses > li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  padding: 14px 0 14px 0;
  border-top: 1px solid var(--pv-hair-soft);
}

.page-privacy .privacy-uses__num {
  font-size: 12px;
  letter-spacing: 0.1em;
  line-height: 2;
  color: var(--c-track-deep);
}

.page-privacy .privacy-uses p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--pv-body-soft);
}

/* ---------- 保留期限 ---------- */

.page-privacy .privacy-retention {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  margin: 26px 0 6px;
  padding: 0;
  list-style: none;
}

.page-privacy .privacy-retention__item {
  position: relative;
  padding-top: 18px;
  border-top: 2px solid rgba(42, 74, 80, 0.24);
}

.page-privacy .privacy-retention__item::before {
  content: "";
  position: absolute;
  top: -5px;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-steel);
}

.page-privacy .privacy-retention__item:first-child {
  border-top-color: var(--c-track-deep);
}

.page-privacy .privacy-retention__item:first-child::before {
  background: var(--c-track-deep);
  box-shadow: 0 0 0 3px rgba(255, 106, 42, 0.16);
}

.page-privacy .privacy-retention__time {
  display: block;
  margin-bottom: 6px;
  font-size: 12.5px;
  letter-spacing: 0.1em;
  color: var(--c-tide);
}

.page-privacy .privacy-retention__item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--pv-body-soft);
}

/* ---------- 演示卡 ---------- */

.page-privacy .privacy-demo {
  position: relative;
  margin: 30px 0 0;
  padding: clamp(20px, 3vw, 30px);
  background: var(--c-deep);
  color: var(--c-fog);
  border: 1px solid rgba(42, 74, 80, 0.9);
  border-radius: var(--radius);
  box-shadow: 0 18px 40px -32px rgba(6, 26, 31, 0.9);
  overflow: hidden;
}

.page-privacy .privacy-demo::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 96px;
  height: 2px;
  background: var(--c-track);
}

.page-privacy .privacy-demo__label {
  margin: 0 0 10px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--c-track);
}

.page-privacy .privacy-demo h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(17px, 2.2vw, 20px);
  font-weight: 800;
  letter-spacing: -0.015em;
  color: var(--c-fog);
}

.page-privacy .privacy-demo p {
  max-width: 52ch;
  margin: 0 0 18px;
  font-size: 14.5px;
  line-height: 1.78;
  color: rgba(234, 243, 242, 0.74);
}

.page-privacy .privacy-demo__btn {
  font-family: var(--font-body);
}

.page-privacy .privacy-demo__on {
  display: none;
}

.page-privacy .privacy-demo__btn[data-on] .privacy-demo__off {
  display: none;
}

.page-privacy .privacy-demo__btn[data-on] .privacy-demo__on {
  display: inline;
}

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

/* ---------- 相关链接 ---------- */

.page-privacy .privacy-links {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  margin: 32px 0 0;
  border-top: 1px solid var(--pv-hair);
}

.page-privacy .privacy-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 2px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  text-decoration: none;
  color: var(--c-track-deep);
  border-bottom: 1px solid var(--pv-hair-soft);
  transition: color 0.18s var(--ease), background 0.18s var(--ease);
}

.page-privacy .privacy-links a::after {
  content: "→";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--c-tide);
  transition: transform 0.2s var(--ease);
}

.page-privacy .privacy-links a:hover,
.page-privacy .privacy-links a:focus-visible {
  color: var(--c-deep);
  background: rgba(42, 74, 80, 0.06);
}

.page-privacy .privacy-links a:hover::after,
.page-privacy .privacy-links a:focus-visible::after {
  transform: translateX(5px);
  color: var(--c-track-deep);
}

/* ---------- 滚动显现 ---------- */

.page-privacy [data-reveal] {
  opacity: 0.001;
  transform: translateY(14px);
  transition: opacity 0.42s var(--ease), transform 0.42s var(--ease);
}

.page-privacy [data-reveal="in"] {
  opacity: 1;
  transform: none;
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-privacy .privacy-meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-privacy .privacy-meta__item {
    padding: 14px 18px 14px 0;
    border-right: 1px solid rgba(42, 74, 80, 0.4);
  }

  .page-privacy .privacy-meta__item:nth-child(even) {
    padding-left: 18px;
    border-right: none;
  }

  .page-privacy .privacy-facts__row {
    grid-template-columns: 128px minmax(0, 1fr);
    gap: 16px;
    align-items: baseline;
  }
}

@media (min-width: 960px) {
  .page-privacy .privacy-doc {
    grid-template-columns: 244px minmax(0, 1fr);
    gap: clamp(40px, 5vw, 72px);
    align-items: start;
  }

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

  .page-privacy .privacy-toc__list {
    flex-direction: column;
    gap: 0;
    overflow-x: visible;
    padding-bottom: 0;
  }

  .page-privacy .privacy-toc__list > li {
    flex: 0 0 auto;
  }

  .page-privacy .privacy-toc__list a {
    grid-template-columns: 24px minmax(0, 1fr);
    padding: 11px 0 11px 14px;
    white-space: normal;
    background: transparent;
    border-top: none;
    border-left: 2px solid transparent;
    border-radius: 0;
  }

  .page-privacy .privacy-toc__list a:hover,
  .page-privacy .privacy-toc__list a:focus-visible {
    background: transparent;
    border-left-color: var(--c-steel);
  }

  .page-privacy .privacy-toc__list a[aria-current="true"] {
    background: transparent;
    border-top-color: transparent;
    border-left-color: var(--c-track-deep);
  }

  .page-privacy .privacy-meta {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    max-width: 940px;
  }

  .page-privacy .privacy-flow {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
  }

  .page-privacy .privacy-retention {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 26px;
  }

  .page-privacy .privacy-sec__head {
    grid-template-columns: 52px minmax(0, 1fr);
    gap: 14px;
    margin-bottom: 18px;
  }

  .page-privacy .privacy-sec__main > p {
    font-size: 16.5px;
  }

  .page-privacy .privacy-links a {
    padding: 18px 4px;
  }
}

@media (min-width: 1200px) {
  .page-privacy .privacy-hero h1 {
    max-width: 15ch;
  }

  .page-privacy .privacy-doc {
    grid-template-columns: 268px minmax(0, 1fr);
  }
}

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

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