.page-privacy {
  --pv-line: #1E2D45;
  --pv-surface: rgba(17, 28, 46, 0.62);
  --pv-surface-soft: rgba(17, 28, 46, 0.28);
  --pv-index-w: 230px;
  --pv-gap: clamp(32px, 5vw, 80px);
  --pv-body: rgba(244, 247, 242, 0.86);
}

/* ---------- 首屏 ---------- */
.page-privacy .privacy-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-top: clamp(28px, 4.5vw, 60px);
}

.page-privacy .privacy-hero::before {
  content: "";
  position: absolute;
  inset: -8% -4% 24% -4%;
  z-index: -1;
  background-image:
    linear-gradient(to right, var(--pv-line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--pv-line) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: 0.42;
  -webkit-mask-image: radial-gradient(ellipse 72% 62% at 26% 26%, #000 8%, transparent 74%);
          mask-image: radial-gradient(ellipse 72% 62% at 26% 26%, #000 8%, transparent 74%);
  pointer-events: none;
}

.page-privacy .privacy-hero__inner {
  max-width: 900px;
}

.page-privacy .privacy-hero h1 {
  font-family: var(--font-head);
  font-size: clamp(32px, 6vw, 64px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: 0.01em;
  margin: 20px 0 0;
  color: var(--text);
}

.page-privacy .privacy-hero__lede {
  max-width: 640px;
  margin: 24px 0 0;
  font-size: clamp(16px, 1.6vw, 18px);
  line-height: 1.78;
  color: var(--pv-body);
}

.page-privacy .privacy-hero__facts {
  display: grid;
  gap: 0;
  margin: 44px 0 0;
  border-top: 1px solid var(--pv-line);
}

.page-privacy .privacy-hero__fact {
  padding: 16px 0;
  border-bottom: 1px solid var(--pv-line);
}

.page-privacy .privacy-hero__fact dt {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}

.page-privacy .privacy-hero__fact dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.5;
  color: var(--text);
  word-break: break-word;
}

.page-privacy .privacy-hero__figure {
  position: relative;
  margin: clamp(40px, 6vw, 72px) 0 0;
}

.page-privacy .privacy-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.04);
}

.page-privacy .privacy-hero__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 15, 26, 0) 42%, rgba(10, 15, 26, 0.88) 100%);
  pointer-events: none;
}

/* ---------- 双栏布局 ---------- */
.page-privacy .privacy-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
  padding-top: clamp(40px, 6vw, 80px);
  padding-bottom: clamp(64px, 9vw, 128px);
}

/* ---------- 左侧条款索引 ---------- */
.page-privacy .privacy-index {
  padding-bottom: 4px;
}

.page-privacy .privacy-index__title {
  margin: 0 0 16px;
  font-family: var(--font-ui);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-privacy .privacy-index__list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-left: 1px solid var(--pv-line);
}

.page-privacy .privacy-index__list li {
  margin: 0;
}

.page-privacy .privacy-index__list a {
  display: block;
  padding: 10px 0 10px 16px;
  margin-left: -1px;
  border-left: 2px solid transparent;
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.5;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease);
}

.page-privacy .privacy-index__list a:hover,
.page-privacy .privacy-index__list a:focus-visible {
  color: var(--text);
  border-left-color: var(--accent);
}

.page-privacy .privacy-index__note {
  margin: 24px 0 0;
  padding-left: 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--muted);
  border-left: 2px solid var(--signal);
}

/* ---------- 右侧正文 ---------- */
.page-privacy .privacy-body {
  max-width: var(--read);
  min-width: 0;
}

.page-privacy .privacy-clause {
  border-top: 1px solid var(--pv-line);
  padding: clamp(28px, 4vw, 44px) 0 clamp(32px, 4.5vw, 52px);
  scroll-margin-top: 104px;
}

.page-privacy .privacy-clause__num {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--accent);
}

.page-privacy .privacy-clause:nth-of-type(even) .privacy-clause__num {
  color: var(--signal);
}

.page-privacy .privacy-clause h2 {
  margin: 0 0 24px;
  font-family: var(--font-head);
  font-size: clamp(23px, 3.2vw, 34px);
  font-weight: 800;
  line-height: 1.18;
  color: var(--text);
}

.page-privacy .privacy-clause__content p {
  margin: 0 0 18px;
  font-size: 16.5px;
  line-height: 1.78;
  color: var(--pv-body);
}

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

.page-privacy .privacy-clause__content ul {
  list-style: none;
  margin: 0 0 22px;
  padding: 0;
}

.page-privacy .privacy-clause__content li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 14px;
  font-size: 16.5px;
  line-height: 1.74;
  color: var(--pv-body);
}

.page-privacy .privacy-clause__content li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 11px;
  height: 1px;
  background: var(--accent);
}

.page-privacy .privacy-clause__content strong {
  color: var(--text);
  font-weight: 700;
}

.page-privacy .privacy-clause__content a {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: rgba(168, 255, 42, 0.38);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: text-decoration-color var(--dur-1) var(--ease);
}

.page-privacy .privacy-clause__content a:hover,
.page-privacy .privacy-clause__content a:focus-visible {
  text-decoration-color: var(--accent);
}

/* ---------- 可展开条款 ---------- */
.page-privacy .expand {
  margin: 26px 0 24px;
  border-top: 1px solid var(--pv-line);
  border-bottom: 1px solid var(--pv-line);
  background: var(--pv-surface-soft);
}

.page-privacy .expand__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 16px 18px;
  background: none;
  border: 0;
  text-align: left;
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text);
  cursor: pointer;
}

.page-privacy .expand__trigger::after {
  content: "+";
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  line-height: 1;
  color: var(--accent);
}

.page-privacy .expand[data-open="true"] .expand__trigger::after {
  content: "−";
}

.page-privacy .expand__trigger:hover {
  color: var(--accent);
}

.page-privacy .expand__trigger:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.page-privacy .expand__inner {
  padding: 0 18px 20px;
}

.page-privacy .expand__inner p {
  margin: 0 0 14px;
  font-size: 15.5px;
  line-height: 1.76;
  color: var(--pv-body);
}

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

/* ---------- 邮箱块 ---------- */
.page-privacy .privacy-mail {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
  margin: 28px 0;
  padding: 22px 24px;
  border: 1px solid var(--pv-line);
  background: linear-gradient(135deg, var(--pv-surface), rgba(17, 28, 46, 0.12));
}

.page-privacy .privacy-mail__label {
  flex: 1 0 100%;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}

.page-privacy .privacy-mail__value {
  flex: 1 1 auto;
  min-width: 0;
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 2vw, 19px);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--accent);
  word-break: break-all;
}

.page-privacy .privacy-mail__copy {
  flex: 0 0 auto;
  padding: 10px 20px;
  border: 1px solid var(--accent);
  background: transparent;
  color: var(--accent);
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: background var(--dur-2) var(--ease), color var(--dur-2) var(--ease);
}

.page-privacy .privacy-mail__copy:hover,
.page-privacy .privacy-mail__copy:focus-visible {
  background: var(--accent);
  color: var(--ink);
}

.page-privacy .privacy-mail__copy:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

/* ---------- 断点 ---------- */
@media (max-width: 899px) {
  .page-privacy .privacy-index {
    border-bottom: 1px solid var(--pv-line);
    padding-bottom: 20px;
  }

  .page-privacy .privacy-index__list {
    display: flex;
    gap: 10px;
    border-left: 0;
    overflow-x: auto;
    padding-bottom: 6px;
    -webkit-overflow-scrolling: touch;
  }

  .page-privacy .privacy-index__list a {
    white-space: nowrap;
    padding: 8px 14px;
    margin-left: 0;
    border: 1px solid var(--pv-line);
    border-left-width: 1px;
    background: var(--pv-surface-soft);
  }

  .page-privacy .privacy-index__list a:hover,
  .page-privacy .privacy-index__list a:focus-visible {
    border-color: var(--accent);
  }

  .page-privacy .privacy-index__note {
    margin-top: 16px;
  }

  .page-privacy .privacy-mail {
    padding: 18px;
  }

  .page-privacy .privacy-mail__copy {
    flex: 1 0 100%;
    text-align: center;
  }
}

@media (min-width: 720px) {
  .page-privacy .privacy-hero__facts {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-privacy .privacy-hero__fact {
    padding: 18px 22px;
    border-bottom: 0;
    border-left: 1px solid var(--pv-line);
  }

  .page-privacy .privacy-hero__fact:first-child {
    padding-left: 0;
    border-left: 0;
  }

  .page-privacy .privacy-hero__fact:last-child {
    padding-right: 0;
  }
}

@media (min-width: 900px) {
  .page-privacy .privacy-layout {
    grid-template-columns: var(--pv-index-w) minmax(0, 1fr);
    gap: var(--pv-gap);
  }

  .page-privacy .privacy-index {
    position: sticky;
    top: 112px;
    align-self: start;
    border-bottom: 0;
    padding-bottom: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-index__list a,
  .page-privacy .privacy-mail__copy,
  .page-privacy .privacy-clause__content a {
    transition: none;
  }
}