.page-privacy {
  --privacy-rail: 226px;
  display: block;
}

/* ---------- 首屏 ---------- */
.page-privacy .legal-hero {
  padding: clamp(28px, 4vw, 52px) 0 clamp(32px, 5vw, 64px);
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(115% 88% at 90% 0%, rgba(46, 155, 255, 0.15), transparent 58%),
    radial-gradient(72% 72% at 2% 100%, rgba(25, 195, 125, 0.12), transparent 62%);
}

.page-privacy .legal-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 40px);
  align-items: center;
}

.page-privacy .legal-hero-copy h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(29px, 5vw, 54px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-privacy .lede {
  margin: 16px 0 0;
  max-width: 58ch;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.78;
}

.page-privacy .hero-keys {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  gap: 0;
}

.page-privacy .hero-keys li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 11px 0;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 14.5px;
  line-height: 1.6;
}

.page-privacy .hero-keys li:last-child {
  border-bottom: 1px solid var(--line);
}

.page-privacy .key-num {
  flex: 0 0 auto;
  min-width: 20px;
  color: var(--lime);
  font-size: 19px;
  font-weight: 700;
  line-height: 1;
}

.page-privacy .legal-hero-visual {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
  box-shadow: var(--shadow-float);
}

.page-privacy .legal-hero-visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

/* ---------- 主体骨架 ---------- */
.page-privacy .legal-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 30px;
  padding-top: clamp(30px, 5vw, 56px);
  padding-bottom: clamp(44px, 6vw, 80px);
}

.page-privacy .legal-body {
  min-width: 0;
}

.page-privacy .legal-section {
  scroll-margin-top: calc(var(--header-h) + 28px);
  padding-bottom: clamp(32px, 5vw, 54px);
}

.page-privacy .legal-section + .legal-section {
  border-top: 1px solid var(--line);
  padding-top: clamp(32px, 5vw, 54px);
}

/* ---------- 章节标题 ---------- */
.page-privacy .section-marker {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 12px;
}

.page-privacy .marker-num {
  flex: 0 0 auto;
  padding-bottom: 3px;
  border-bottom: 2px solid var(--green);
  color: var(--green);
  font-size: 13px;
  letter-spacing: 0.1em;
}

.page-privacy .section-marker h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 3.2vw, 30px);
  line-height: 1.22;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-privacy .section-note {
  margin: 0 0 24px;
  max-width: 60ch;
  color: var(--ink-soft);
  font-size: 16px;
  line-height: 1.78;
}

/* ---------- 01 信息范围 ---------- */
.page-privacy .split-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-privacy .split-col {
  padding: 20px;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-privacy .split-col--need {
  border-top: 2px solid var(--green);
}

.page-privacy .split-col--optional {
  border-top: 2px solid var(--blue);
}

.page-privacy .split-title {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 14px;
  color: var(--ink);
  font-size: 15px;
  font-weight: 700;
}

.page-privacy .check-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-privacy .check-list li {
  position: relative;
  padding-left: 18px;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.72;
}

.page-privacy .check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 6px;
  height: 6px;
  background: var(--green);
  transform: rotate(45deg);
}

.page-privacy .split-col--optional .check-list li::before {
  background: var(--blue);
}

.page-privacy .check-list strong {
  color: var(--ink);
  font-weight: 700;
}

/* ---------- 02 用途对照 ---------- */
.page-privacy .use-map {
  border-top: 1px solid var(--line);
}

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

.page-privacy .use-src {
  color: var(--lime);
  font-size: 13px;
  letter-spacing: 0.04em;
}

.page-privacy .use-arrow {
  display: none;
  color: var(--green);
}

.page-privacy .use-dst {
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.72;
}

.page-privacy .aside-note {
  margin: 20px 0 0;
  padding-left: 14px;
  border-left: 2px solid var(--line);
  color: var(--muted);
  font-size: 14px;
  line-height: 1.72;
}

/* ---------- 03 订阅开关 ---------- */
.page-privacy .switch-panel {
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-privacy .switch-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
}

.page-privacy .switch-row:last-child {
  border-bottom: 0;
}

.page-privacy .switch-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.page-privacy .switch-name {
  color: var(--ink);
  font-size: 15px;
  font-weight: 600;
}

.page-privacy .switch-channel {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.06em;
}

.page-privacy .switch {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  cursor: pointer;
}

.page-privacy .switch input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  opacity: 0;
  cursor: pointer;
}

.page-privacy .switch-track {
  position: relative;
  display: block;
  width: 46px;
  height: 24px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--raise);
  transition: background-color 0.18s ease, border-color 0.18s ease;
}

.page-privacy .switch-knob {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--muted);
  transition: transform 0.18s ease, background-color 0.18s ease;
}

.page-privacy .switch input:checked ~ .switch-track {
  border-color: var(--green);
  background: rgba(25, 195, 125, 0.22);
}

.page-privacy .switch input:checked ~ .switch-track .switch-knob {
  transform: translateX(22px);
  background: var(--green);
}

.page-privacy .switch input:focus-visible ~ .switch-track {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

.page-privacy .switch-state {
  min-width: 48px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 12px;
}

.page-privacy .switch-state .state-off {
  display: none;
}

.page-privacy .switch input:checked ~ .switch-state .state-on {
  display: inline;
}

.page-privacy .switch input:checked ~ .switch-state .state-off {
  display: none;
}

.page-privacy .switch input:not(:checked) ~ .switch-state .state-on {
  display: none;
}

.page-privacy .switch input:not(:checked) ~ .switch-state .state-off {
  display: inline;
}

/* ---------- 04 保存与权限 ---------- */
.page-privacy .retention-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

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

.page-privacy .retention-key {
  color: var(--blue);
  font-size: 13px;
  letter-spacing: 0.03em;
}

.page-privacy .retention-val {
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.72;
}

/* ---------- 05 权利与入口 ---------- */
.page-privacy .rights-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 18px;
}

.page-privacy .rights-steps li {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  align-items: start;
}

.page-privacy .step-num {
  display: block;
  padding: 5px 0;
  border: 1px solid var(--line);
  border-top: 2px solid var(--lime);
  background: var(--panel);
  color: var(--lime);
  font-size: 13px;
  text-align: center;
}

.page-privacy .rights-steps h3 {
  margin: 0 0 6px;
  color: var(--ink);
  font-size: 16px;
  font-weight: 700;
}

.page-privacy .rights-steps p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.72;
}

.page-privacy .legal-cta {
  display: grid;
  gap: 16px;
  margin-top: 30px;
  padding: 22px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--green);
  background: var(--panel);
}

.page-privacy .legal-cta p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.72;
}

.page-privacy .legal-cta .btn-row {
  flex-wrap: wrap;
  gap: 12px;
}

.page-privacy .back-top {
  margin: 34px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 14px;
}

.page-privacy .back-top a {
  display: inline-block;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  text-decoration: none;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.page-privacy .back-top a:hover,
.page-privacy .back-top a:focus-visible {
  color: var(--lime);
  border-color: var(--lime);
}

/* ---------- 章节索引 ---------- */
.page-privacy .legal-index {
  order: -1;
  padding: 16px;
  border: 1px solid var(--line);
  background: var(--panel);
}

.page-privacy .legal-index-title {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.18em;
}

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

.page-privacy .legal-index-list li {
  flex: 0 0 auto;
}

.page-privacy .legal-index-list .index-link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 8px 12px;
  border-bottom: 2px solid transparent;
  background: var(--raise);
  color: var(--ink-soft);
  font-size: 13.5px;
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.18s ease, border-color 0.18s ease, background-color 0.18s ease;
}

.page-privacy .legal-index-list .index-link .mono {
  color: var(--muted);
  font-size: 12px;
}

.page-privacy .legal-index-list .index-link:hover,
.page-privacy .legal-index-list .index-link:focus-visible {
  color: var(--ink);
  border-bottom-color: var(--green);
}

.page-privacy .legal-index-list .index-link:hover .mono,
.page-privacy .legal-index-list .index-link:focus-visible .mono {
  color: var(--lime);
}

/* ---------- 中大屏 ---------- */
@media (min-width: 760px) {
  .page-privacy .split-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
  }

  .page-privacy .use-arrow {
    display: block;
  }

  .page-privacy .use-row {
    grid-template-columns: 190px 22px minmax(0, 1fr);
    align-items: baseline;
    gap: 14px;
  }

  .page-privacy .retention-item {
    grid-template-columns: 200px minmax(0, 1fr);
    align-items: baseline;
    gap: 20px;
  }
}

@media (min-width: 900px) {
  .page-privacy .legal-hero-inner {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    gap: clamp(36px, 5vw, 64px);
  }
}

@media (min-width: 980px) {
  .page-privacy .legal-layout {
    grid-template-columns: minmax(0, 66ch) var(--privacy-rail);
    justify-content: space-between;
    align-items: start;
    gap: clamp(40px, 6vw, 80px);
  }

  .page-privacy .legal-body {
    grid-column: 1;
  }

  .page-privacy .legal-index {
    order: 0;
    grid-column: 2;
    position: sticky;
    top: calc(var(--header-h) + 24px);
    padding: 18px;
  }

  .page-privacy .legal-index-list {
    display: grid;
    gap: 2px;
    overflow: visible;
  }

  .page-privacy .legal-index-list .index-link {
    padding: 9px 10px;
    border-bottom: 0;
    border-left: 2px solid transparent;
    background: transparent;
    white-space: normal;
    border-radius: 0;
  }

  .page-privacy .legal-index-list .index-link:hover,
  .page-privacy .legal-index-list .index-link:focus-visible {
    border-bottom-color: transparent;
    border-left-color: var(--green);
    background: var(--raise);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .switch-track,
  .page-privacy .switch-knob,
  .page-privacy .legal-index-list .index-link,
  .page-privacy .back-top a {
    transition: none;
  }
}