.page-privacy {
  --pv-muted: #46635A;
  --pv-line: rgba(2, 9, 6, 0.18);
  --pv-line-soft: rgba(2, 9, 6, 0.09);
  --pv-tint: rgba(199, 255, 63, 0.24);
  background: var(--by-ink);
  color: var(--by-paper);
  overflow-x: hidden;
}

/* ---------- 首屏 ---------- */
.page-privacy .privacy-hero {
  position: relative;
  padding: clamp(24px, 5vw, 48px) 0 clamp(40px, 7vw, 88px);
  background:
    radial-gradient(120% 90% at 88% 0%, rgba(199, 255, 63, 0.14), transparent 58%),
    linear-gradient(180deg, var(--by-ink) 0%, var(--by-ink-2) 100%);
  border-bottom: 1px solid var(--by-hair-lime);
}

.page-privacy .privacy-hero__crumbs {
  margin: 0 0 clamp(20px, 3vw, 32px);
}

.page-privacy .privacy-hero__grid {
  display: grid;
  gap: clamp(28px, 4vw, 48px);
  align-items: center;
}

.page-privacy .privacy-hero__title {
  margin: 14px 0 0;
  font-size: clamp(32px, 5.6vw, 62px);
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.page-privacy .privacy-hero__lead {
  margin: 20px 0 0;
  max-width: 58ch;
  color: var(--by-pale);
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.85;
}

.page-privacy .privacy-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 14px;
  margin: 22px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--by-mist);
}

.page-privacy .privacy-hero__meta .by-data {
  color: var(--by-lime);
  font-size: 11px;
  letter-spacing: 0.14em;
}

.page-privacy .privacy-hero__points {
  list-style: none;
  display: grid;
  gap: 10px 26px;
  margin: 26px 0 0;
  padding: 0;
}

.page-privacy .privacy-hero__points li {
  position: relative;
  padding-left: 20px;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--by-pale);
}

.page-privacy .privacy-hero__points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 11px;
  height: 1px;
  background: var(--by-lime);
}

.page-privacy .privacy-hero__figure {
  position: relative;
  margin: 0;
  border: 1px solid var(--by-hair-lime);
  background: var(--by-ink-3);
}

.page-privacy .privacy-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(1.05) contrast(1.02);
}

/* ---------- 正文区 ---------- */
.page-privacy .privacy-doc {
  background-color: var(--by-paper);
  background-image: linear-gradient(var(--pv-line-soft) 1px, transparent 1px);
  background-size: 100% 92px;
  color: var(--by-ink);
  padding: clamp(36px, 6vw, 76px) 0 clamp(56px, 9vw, 116px);
}

.page-privacy .privacy-doc__inner {
  display: grid;
  gap: clamp(30px, 5vw, 56px);
}

/* ---------- 章节导航 ---------- */
.page-privacy .privacy-nav {
  border-top: 2px solid var(--by-ink);
  padding-top: 14px;
  min-width: 0;
}

.page-privacy .privacy-nav__head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 12px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--by-ink);
}

.page-privacy .privacy-nav__head .by-data {
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.14em;
  color: var(--pv-muted);
}

.page-privacy .privacy-nav__list {
  list-style: none;
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
}

.page-privacy .privacy-nav__link {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 8px 10px 6px;
  color: var(--pv-muted);
  font-size: 14.5px;
  line-height: 1.4;
  text-decoration: none;
  border-bottom: 1px solid var(--pv-line-soft);
  transition: color 0.2s var(--by-ease), background 0.2s var(--by-ease);
}

.page-privacy .privacy-nav__link .by-data {
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--by-ink);
  opacity: 0.55;
  transition: opacity 0.2s var(--by-ease);
}

.page-privacy .privacy-nav__link:hover,
.page-privacy .privacy-nav__link:focus-visible {
  color: var(--by-ink);
  background: var(--pv-tint);
}

.page-privacy .privacy-nav__link:hover .by-data,
.page-privacy .privacy-nav__link:focus-visible .by-data {
  opacity: 1;
}

.page-privacy .privacy-nav__note {
  margin: 16px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--pv-muted);
}

/* ---------- 正文 ---------- */
.page-privacy .privacy-body {
  min-width: 0;
}

.page-privacy .privacy-body__title {
  margin: 0;
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--by-ink);
}

.page-privacy .privacy-body__intro {
  margin: 12px 0 clamp(22px, 3vw, 32px);
  max-width: 66ch;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--pv-muted);
}

.page-privacy .privacy-term {
  scroll-margin-top: 88px;
  border-top: 1px solid var(--pv-line);
  padding: clamp(18px, 2.6vw, 26px) 0 clamp(20px, 3vw, 30px);
  transition: background 0.25s var(--by-ease), box-shadow 0.25s var(--by-ease),
    padding 0.25s var(--by-ease);
}

.page-privacy .privacy-term:last-child {
  border-bottom: 1px solid var(--pv-line);
}

.page-privacy .privacy-term:target {
  background: linear-gradient(90deg, var(--pv-tint), rgba(199, 255, 63, 0) 62%);
  box-shadow: inset 3px 0 0 var(--by-ink);
  padding-left: clamp(12px, 2vw, 20px);
  padding-right: clamp(8px, 1.5vw, 16px);
}

.page-privacy .privacy-term__head {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-privacy .privacy-term__toggle {
  display: flex;
  align-items: baseline;
  gap: 12px;
  width: 100%;
  margin: 0;
  padding: 0;
  background: none;
  border: 0;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.page-privacy .privacy-term__num {
  flex: 0 0 auto;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--pv-muted);
}

.page-privacy .privacy-term__title {
  font-size: clamp(19px, 2.6vw, 26px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--by-ink);
}

.page-privacy .privacy-term__sign {
  position: relative;
  flex: 0 0 16px;
  width: 16px;
  height: 16px;
  margin-left: auto;
  align-self: center;
}

.page-privacy .privacy-term__sign::before,
.page-privacy .privacy-term__sign::after {
  content: "";
  position: absolute;
  background: var(--by-ink);
}

.page-privacy .privacy-term__sign::before {
  left: 0;
  top: 50%;
  width: 16px;
  height: 1px;
}

.page-privacy .privacy-term__sign::after {
  left: 50%;
  top: 0;
  width: 1px;
  height: 16px;
  opacity: 0;
  transition: opacity 0.2s var(--by-ease);
}

.page-privacy .privacy-term__toggle[aria-expanded="false"] .privacy-term__sign::after {
  opacity: 1;
}

.page-privacy .privacy-term__toggle:focus-visible {
  outline: 2px solid var(--by-ink);
  outline-offset: 4px;
}

.page-privacy .privacy-term__body {
  padding-top: 14px;
  max-width: 68ch;
}

.page-privacy .privacy-term__body p {
  margin: 0 0 14px;
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--by-ink-2);
}

.page-privacy .privacy-term__body ul {
  list-style: none;
  display: grid;
  gap: 9px;
  margin: 0 0 16px;
  padding: 0;
}

.page-privacy .privacy-term__body li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--by-ink-2);
}

.page-privacy .privacy-term__body li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.7em;
  width: 6px;
  height: 6px;
  background: var(--by-ink);
}

.page-privacy .privacy-fields {
  display: grid;
  gap: 16px;
  margin: 0 0 18px;
}

.page-privacy .privacy-fields dt {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--by-ink);
}

.page-privacy .privacy-fields dt .by-data {
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.1em;
  color: var(--pv-muted);
}

.page-privacy .privacy-fields dd {
  margin: 5px 0 0;
  padding-left: 20px;
  border-left: 1px solid var(--pv-line);
  font-size: 15px;
  line-height: 1.8;
  color: var(--by-ink-2);
}

.page-privacy .privacy-link {
  color: var(--by-ink);
  text-decoration: none;
  border-bottom: 1px solid rgba(2, 9, 6, 0.45);
  transition: background 0.2s var(--by-ease), border-color 0.2s var(--by-ease);
}

.page-privacy .privacy-link:hover,
.page-privacy .privacy-link:focus-visible {
  background: var(--pv-tint);
  border-color: var(--by-ink);
}

.page-privacy .privacy-contact {
  display: grid;
  gap: 8px;
  margin: 18px 0 20px;
  padding: clamp(18px, 3vw, 26px);
  background: var(--by-ink);
  border-left: 3px solid var(--by-lime);
  color: var(--by-paper);
}

.page-privacy .privacy-contact__label {
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--by-lime);
}

.page-privacy .privacy-contact__mail {
  font-family: var(--by-font-mono);
  font-size: clamp(14px, 2.4vw, 20px);
  line-height: 1.4;
  word-break: break-all;
  color: var(--by-paper);
}

.page-privacy .privacy-term__body .privacy-contact__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--by-pale);
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-privacy .privacy-hero__points {
    grid-template-columns: 1fr 1fr;
  }

  .page-privacy .privacy-nav__list {
    grid-template-columns: 1fr 1fr;
    column-gap: 24px;
  }
}

@media (min-width: 900px) {
  .page-privacy .privacy-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  }
}

@media (min-width: 1000px) {
  .page-privacy .privacy-doc__inner {
    grid-template-columns: minmax(0, 264px) minmax(0, 1fr);
    gap: clamp(40px, 5vw, 76px);
    align-items: start;
  }

  .page-privacy .privacy-nav {
    position: sticky;
    top: 28px;
    align-self: start;
  }

  .page-privacy .privacy-nav__list {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-nav__link,
  .page-privacy .privacy-term,
  .page-privacy .privacy-term__sign::after,
  .page-privacy .privacy-link {
    transition: none;
  }
}