.page-privacy {
  --pv-rule: rgba(28, 28, 30, 0.14);
  --pv-rule-dark: rgba(255, 255, 255, 0.16);
  --pv-gap: clamp(30px, 5vw, 56px);
  background: var(--paper);
  color: var(--ink);
  overflow-wrap: break-word;
}

/* ---------- 面包屑 ---------- */
.page-privacy .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 0 0 clamp(20px, 3vw, 34px);
  font-size: 13px;
  letter-spacing: 0.04em;
}

.page-privacy .breadcrumb a {
  color: var(--dim);
  text-decoration: none;
  transition: color var(--dur);
}

.page-privacy .breadcrumb a:hover {
  color: var(--white);
}

.page-privacy .breadcrumb__sep {
  color: rgba(255, 255, 255, 0.32);
}

.page-privacy .breadcrumb [aria-current="page"] {
  color: var(--white);
  font-weight: 600;
}

/* ---------- 首屏 ---------- */
.privacy-hero {
  background: var(--ink);
  color: var(--white);
  border-bottom: var(--line);
  padding: clamp(26px, 4.5vw, 52px) 0 clamp(30px, 5vw, 60px);
}

.privacy-hero__eyebrow {
  margin: 0 0 14px;
  font-family: var(--f-num);
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--dim);
}

.privacy-hero__title {
  margin: 0 0 18px;
  max-width: 22ch;
  font-family: var(--f-serif);
  font-weight: 700;
  font-size: clamp(30px, 5.6vw, 58px);
  line-height: 1.14;
  letter-spacing: -0.015em;
  color: var(--white);
}

.privacy-hero__lead {
  margin: 0;
  max-width: 64ch;
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.85;
  color: rgba(255, 255, 255, 0.78);
}

.privacy-figure {
  margin: clamp(26px, 4vw, 44px) 0 0;
  border: 2px solid var(--pv-rule-dark);
  overflow: hidden;
}

.privacy-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

.privacy-figure__cap {
  margin: 0;
  padding: 11px 16px;
  background: var(--deep);
  border-top: var(--line);
  font-size: 13px;
  line-height: 1.6;
  color: var(--dim);
}

/* ---------- 正文骨架 ---------- */
.privacy-body {
  padding: var(--pv-gap) 0 clamp(52px, 8vw, 104px);
}

.privacy-body__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
}

.privacy-content {
  min-width: 0;
  max-width: 70ch;
}

/* ---------- 目录 ---------- */
.privacy-toc {
  border: 2px solid var(--ink);
  background: var(--white);
}

.privacy-toc__summary {
  display: block;
  padding: 14px 16px;
  font-family: var(--f-sans);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.06em;
  cursor: pointer;
  list-style: none;
}

.privacy-toc__summary::-webkit-details-marker {
  display: none;
}

.privacy-toc__summary::after {
  content: "＋";
  float: right;
  font-weight: 400;
  color: var(--muted);
}

.privacy-toc[open] .privacy-toc__summary::after {
  content: "－";
}

.privacy-toc__list {
  margin: 0;
  padding: 4px 16px 16px;
  list-style: none;
  display: grid;
  gap: 2px;
}

.privacy-toc__item {
  min-width: 0;
}

.privacy-toc__link {
  display: block;
  padding: 9px 0 9px 14px;
  border-left: 2px solid var(--pv-rule);
  font-size: 14px;
  line-height: 1.55;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--dur), border-color var(--dur);
}

.privacy-toc__link:hover,
.privacy-toc__link:focus-visible {
  color: var(--ink);
  border-left-color: var(--winter);
}

/* ---------- 章节 ---------- */
.privacy-sec {
  padding-top: var(--pv-gap);
  margin-top: var(--pv-gap);
  border-top: 1px solid var(--pv-rule);
  scroll-margin-top: 96px;
}

.privacy-sec:first-child {
  padding-top: 0;
  margin-top: 0;
  border-top: 0;
}

.privacy-sec__num {
  margin: 0 0 8px;
  font-family: var(--f-num);
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--winter);
}

.privacy-sec__title {
  margin: 0 0 clamp(14px, 2vw, 20px);
  font-family: var(--f-serif);
  font-weight: 700;
  font-size: clamp(21px, 2.8vw, 29px);
  line-height: 1.3;
  letter-spacing: -0.008em;
}

.privacy-sec p {
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.85;
}

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

/* ---------- 三类信息定义 ---------- */
.privacy-def {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  display: grid;
  gap: 22px;
}

.privacy-def__item {
  padding-left: 18px;
  border-left: 3px solid var(--ink);
}

.privacy-def__term {
  margin: 0 0 7px;
  font-family: var(--f-sans);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.01em;
}

.privacy-def__desc {
  margin: 0;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(28, 28, 30, 0.82);
}

/* ---------- 用途列表 ---------- */
.privacy-list {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.privacy-list li {
  position: relative;
  padding-left: 20px;
  font-size: 16px;
  line-height: 1.85;
}

.privacy-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.82em;
  width: 9px;
  height: 2px;
  background: var(--winter);
}

.privacy-list strong {
  font-weight: 700;
}

/* ---------- 操作面板 ---------- */
.privacy-panel {
  margin: clamp(18px, 2.6vw, 28px) 0 0;
  padding: clamp(18px, 3vw, 30px);
  background: var(--white);
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-hard);
}

.privacy-actions {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 18px;
}

.privacy-actions__item {
  display: grid;
  gap: 5px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--pv-rule);
}

.privacy-actions__item:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.privacy-actions__label {
  position: relative;
  padding-left: 18px;
  font-family: var(--f-sans);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.02em;
}

.privacy-actions__label::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.58em;
  width: 10px;
  height: 10px;
  background: var(--ink);
}

.privacy-actions__text {
  display: block;
  padding-left: 18px;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(28, 28, 30, 0.82);
}

/* ---------- 联系信息 ---------- */
.privacy-contact {
  margin: clamp(20px, 2.6vw, 28px) 0 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: 2px solid var(--ink);
}

.privacy-contact__row {
  display: grid;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--pv-rule);
}

.privacy-contact__key {
  margin: 0;
  font-family: var(--f-num);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--muted);
}

.privacy-contact__val {
  margin: 0;
  font-size: 16px;
  line-height: 1.7;
  font-weight: 600;
}

/* ---------- 相关页面 ---------- */
.privacy-related {
  margin-top: var(--pv-gap);
  padding-top: clamp(20px, 3vw, 30px);
  border-top: 1px solid var(--pv-rule);
}

.privacy-related__label {
  margin: 0 0 12px;
  font-family: var(--f-num);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--muted);
}

.privacy-related__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.privacy-related__list li {
  font-size: 15.5px;
  line-height: 1.7;
}

/* ---------- 平板 ---------- */
@media (min-width: 700px) {
  .privacy-body__grid {
    gap: clamp(32px, 4vw, 48px);
  }

  .privacy-contact__row {
    grid-template-columns: 132px minmax(0, 1fr);
    align-items: baseline;
    gap: 16px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 960px) {
  .privacy-body__grid {
    grid-template-columns: 208px minmax(0, 1fr);
    gap: clamp(44px, 6vw, 84px);
    align-items: start;
  }

  .privacy-toc {
    position: sticky;
    top: 104px;
    border: 0;
    background: transparent;
    padding-top: 6px;
  }

  .privacy-toc__summary {
    display: none;
  }

  .privacy-toc__body {
    display: block !important;
  }

  .privacy-toc__list {
    padding: 0;
  }

  .privacy-toc__link {
    padding: 9px 0 9px 16px;
    font-size: 13.5px;
  }

  .privacy-sec__num {
    letter-spacing: 0.24em;
  }
}

/* ---------- 宽屏 ---------- */
@media (min-width: 1200px) {
  .privacy-hero__title {
    max-width: 18ch;
  }

  .privacy-sec p,
  .privacy-def__desc,
  .privacy-list li {
    font-size: 17px;
  }
}

/* ---------- 窄屏防护 ---------- */
@media (max-width: 420px) {
  .privacy-panel {
    box-shadow: 4px 4px 0 0 var(--ink);
  }

  .privacy-def__item {
    padding-left: 14px;
  }
}