.page-privacy {
  --privacy-measure: 720px;
  --privacy-gap: clamp(56px, 12vw, 96px);
  scroll-behavior: smooth;
  padding-bottom: clamp(64px, 12vw, 120px);
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy {
    scroll-behavior: auto;
  }
}

/* ---------- 顶部阅读进度 ---------- */
.page-privacy .privacy-progress {
  position: sticky;
  top: var(--sb-head-h);
  z-index: 40;
  height: 2px;
  width: 100%;
  background: var(--sb-line);
}

.page-privacy .privacy-progress__bar {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--sb-cyan), var(--sb-cyan-soft));
  transition: width 0.1s linear;
}

/* ---------- 通栏抽象视觉 ---------- */
.page-privacy .privacy-hero {
  position: relative;
  width: 100%;
  height: clamp(170px, 34vw, 320px);
  overflow: hidden;
  border-bottom: 1px solid var(--sb-line);
}

.page-privacy .privacy-hero img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.85) brightness(0.68);
}

.page-privacy .privacy-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(180deg, rgba(5, 7, 13, 0.25) 0%, rgba(5, 7, 13, 0.92) 100%),
    linear-gradient(118deg, rgba(0, 224, 198, 0.16) 0%, rgba(0, 224, 198, 0) 58%);
}

/* ---------- 窄版阅读容器 ---------- */
.page-privacy .privacy-shell {
  width: min(100% - 2 * var(--sb-gutter), var(--privacy-measure));
  margin-inline: auto;
}

.page-privacy .sb-crumbs {
  margin-top: 26px;
}

/* ---------- 页首 ---------- */
.page-privacy .privacy-head {
  padding-top: clamp(26px, 5vw, 44px);
}

.page-privacy .privacy-head__eyebrow {
  margin: 0 0 14px;
  font-family: var(--sb-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--sb-cyan);
  text-transform: uppercase;
}

.page-privacy .privacy-head__title {
  margin: 0;
  font-size: clamp(32px, 7vw, 52px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--sb-text);
}

.page-privacy .privacy-head__lede {
  margin: 20px 0 0;
  font-size: clamp(16px, 2.4vw, 18px);
  line-height: 1.85;
  color: var(--sb-muted);
  max-width: 34em;
}

/* ---------- 条款目录 ---------- */
.page-privacy .privacy-toc {
  margin-top: clamp(36px, 6vw, 52px);
  padding: 18px 0;
  border-top: 1px solid var(--sb-line);
  border-bottom: 1px solid var(--sb-line);
}

.page-privacy .privacy-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
}

.page-privacy .privacy-toc__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 10px;
  border-radius: var(--sb-r-xs);
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--sb-muted);
  text-decoration: none;
  transition: color var(--sb-dur) var(--sb-ease), background var(--sb-dur) var(--sb-ease);
}

.page-privacy .privacy-toc__link:hover,
.page-privacy .privacy-toc__link:focus-visible {
  color: var(--sb-cyan-soft);
  background: rgba(0, 224, 198, 0.08);
}

.page-privacy .privacy-toc__num {
  flex: none;
  font-family: var(--sb-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--sb-cyan);
}

@media (min-width: 520px) {
  .page-privacy .privacy-toc__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 18px;
  }
}

/* ---------- 章节 ---------- */
.page-privacy .privacy-sec {
  position: relative;
  padding-top: var(--privacy-gap);
  scroll-margin-top: calc(var(--sb-head-h) + 28px);
}

.page-privacy .privacy-sec + .privacy-sec::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--sb-cyan) 0%, var(--sb-line) 22%, rgba(30, 42, 64, 0) 78%);
}

.page-privacy .privacy-sec__num {
  display: block;
  margin: 0 0 12px;
  font-family: var(--sb-mono);
  font-size: 14px;
  letter-spacing: 0.2em;
  color: var(--sb-cyan);
  opacity: 0.72;
  transition: opacity var(--sb-dur) var(--sb-ease);
}

.page-privacy .privacy-sec.is-current .privacy-sec__num {
  opacity: 1;
}

.page-privacy .privacy-sec__title {
  margin: 0 0 20px;
  font-size: clamp(22px, 3.6vw, 30px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--sb-text);
}

.page-privacy .privacy-sec p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--sb-muted);
  max-width: 34em;
}

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

/* ---------- 场景条目 ---------- */
.page-privacy .privacy-item {
  position: relative;
  margin: 30px 0 0;
  padding-left: 22px;
  border-left: 2px solid var(--sb-line);
}

.page-privacy .privacy-item::before {
  content: "";
  position: absolute;
  left: -2px;
  top: 0;
  width: 2px;
  height: 24px;
  background: var(--sb-cyan);
}

.page-privacy .privacy-item__title {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--sb-text);
}

.page-privacy .privacy-item p {
  margin: 0 0 10px;
}

.page-privacy .privacy-item__flag {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--sb-mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--sb-muted);
}

/* ---------- 术语标签 ---------- */
.page-privacy .privacy-term {
  display: inline-block;
  padding: 4px 9px;
  font-family: var(--sb-sans);
  font-size: 12.5px;
  line-height: 1.2;
  color: var(--sb-cyan-soft);
  background: rgba(0, 224, 198, 0.08);
  border: 1px solid rgba(0, 224, 198, 0.4);
  border-radius: var(--sb-pill);
  cursor: help;
  transition: background var(--sb-dur) var(--sb-ease), border-color var(--sb-dur) var(--sb-ease);
}

.page-privacy .privacy-term:hover,
.page-privacy .privacy-term:focus-visible {
  background: rgba(0, 224, 198, 0.18);
  border-color: var(--sb-cyan);
}

/* ---------- 用途列表 ---------- */
.page-privacy .privacy-uses {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.page-privacy .privacy-uses__item {
  padding-left: 18px;
  border-left: 1px solid var(--sb-line);
}

.page-privacy .privacy-uses__item h3 {
  margin: 0 0 8px;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--sb-cyan-soft);
}

.page-privacy .privacy-uses__item p {
  margin: 0;
  font-size: 15.5px;
}

@media (min-width: 680px) {
  .page-privacy .privacy-uses {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 34px;
    row-gap: 26px;
  }
}

/* ---------- 期限与共享对照 ---------- */
.page-privacy .privacy-rows {
  margin: 26px 0 0;
}

.page-privacy .privacy-rows__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--sb-line);
}

.page-privacy .privacy-rows__row:first-child {
  border-top: 1px solid var(--sb-line);
}

.page-privacy .privacy-rows dt {
  font-family: var(--sb-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--sb-cyan-soft);
}

.page-privacy .privacy-rows dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--sb-muted);
}

@media (min-width: 620px) {
  .page-privacy .privacy-rows__row {
    grid-template-columns: 168px minmax(0, 1fr);
    gap: 22px;
    align-items: baseline;
  }
}

.page-privacy .privacy-note {
  margin-top: 22px;
  padding: 16px 18px;
  background: var(--sb-card);
  border: 1px solid var(--sb-line);
  border-radius: var(--sb-r);
  font-size: 15px;
}

/* ---------- 操作步骤 ---------- */
.page-privacy .privacy-steps {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}

.page-privacy .privacy-steps__item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 14px;
  padding: 20px 0;
  border-bottom: 1px solid var(--sb-line);
}

.page-privacy .privacy-steps__item:first-child {
  border-top: 1px solid var(--sb-line);
}

.page-privacy .privacy-steps__num {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  font-family: var(--sb-mono);
  font-size: 13px;
  color: var(--sb-cyan);
  border: 1px solid rgba(0, 224, 198, 0.42);
  border-radius: 50%;
}

.page-privacy .privacy-steps__item h3 {
  margin: 4px 0 8px;
  font-size: 16.5px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--sb-text);
}

.page-privacy .privacy-steps__item p {
  margin: 0;
  font-size: 15.5px;
}

/* ---------- 收尾动作 ---------- */
.page-privacy .privacy-mail {
  font-family: var(--sb-mono);
  font-size: 0.95em;
  font-weight: 400;
  color: var(--sb-orange-soft);
  word-break: break-all;
}

.page-privacy .privacy-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-privacy .privacy-actions .sb-btn {
  min-height: 44px;
}

@media (max-width: 420px) {
  .page-privacy .privacy-actions {
    flex-direction: column;
  }

  .page-privacy .privacy-actions .sb-btn {
    width: 100%;
    text-align: center;
  }
}