.page-privacy {
  --priv-line: rgba(109, 123, 134, 0.24);
  --priv-line-soft: rgba(109, 123, 134, 0.12);
  --priv-gap: clamp(1rem, 3vw, 2rem);
  background: var(--ink-900);
  color: var(--text);
  font-family: var(--font-body);
  padding-bottom: clamp(2.5rem, 6vw, 5rem);
}

/* ---------- 首屏 ---------- */
.page-privacy .privacy-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(1.6rem, 4vw, 3rem) 0 clamp(1.8rem, 4vw, 3rem);
  border-bottom: 1px solid var(--priv-line-soft);
}

.page-privacy .privacy-hero::before {
  content: "";
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 130%;
  background-image:
    linear-gradient(rgba(39, 230, 245, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(39, 230, 245, 0.08) 1px, transparent 1px);
  background-size: 46px 46px;
  transform: rotate(-8deg);
  opacity: 0.55;
  pointer-events: none;
}

.page-privacy .privacy-hero::after {
  content: "";
  position: absolute;
  top: -30%;
  right: -18%;
  width: 62%;
  height: 160%;
  background: linear-gradient(200deg, rgba(39, 230, 245, 0.22), rgba(39, 230, 245, 0) 62%);
  transform: skewX(-14deg);
  pointer-events: none;
}

.page-privacy .privacy-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: clamp(1.4rem, 4vw, 2.6rem);
}

.page-privacy .crumbs-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin: 0 0 1.1rem;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--text-dim);
}

.page-privacy .crumbs-list li:not(:last-child)::after {
  content: "/";
  margin-left: 0.4rem;
  color: var(--rock);
}

.page-privacy .crumbs-list a {
  color: var(--text-soft);
  text-decoration: none;
}

.page-privacy .crumbs-list a:hover,
.page-privacy .crumbs-list a:focus-visible {
  color: var(--cyan);
}

.page-privacy .privacy-hero__eyebrow {
  color: var(--cyan-glow);
  letter-spacing: 0.18em;
  margin: 0 0 0.9rem;
}

.page-privacy .privacy-hero__title {
  margin: 0 0 1.1rem;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2rem, 6.4vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--white);
  max-width: 20ch;
}

.page-privacy .privacy-hero__lead {
  margin: 0;
  max-width: 52ch;
  color: var(--text-soft);
  font-size: 1rem;
  line-height: 1.85;
}

.page-privacy .privacy-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1.4rem 0 0;
  padding: 0;
  list-style: none;
}

.page-privacy .privacy-chips li {
  padding: 0.42rem 0.85rem;
  border: 1px solid var(--line-cyan);
  border-radius: var(--r-pill);
  background: rgba(13, 39, 64, 0.6);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--cyan-glow);
}

.page-privacy .privacy-frame {
  position: relative;
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line-cyan);
  background: var(--ink-800);
  box-shadow: var(--shadow-float);
}

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

.page-privacy .privacy-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 21, 37, 0) 40%, rgba(6, 21, 37, 0.72) 100%);
  pointer-events: none;
}

.page-privacy .privacy-frame__tag {
  position: absolute;
  left: 1rem;
  bottom: 1rem;
  z-index: 1;
  padding: 0.3rem 0.7rem;
  border-radius: var(--r-pill);
  background: rgba(6, 21, 37, 0.82);
  border: 1px solid var(--line-cyan);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

/* ---------- 目录 + 正文 ---------- */
.page-privacy .privacy-layout {
  display: grid;
  gap: clamp(1.4rem, 4vw, 3.4rem);
  padding-top: clamp(1.6rem, 4vw, 2.8rem);
}

.page-privacy .privacy-toc {
  position: relative;
}

.page-privacy .privacy-toc__title {
  margin: 0 0 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.page-privacy .privacy-toc__list {
  display: flex;
  gap: 0.5rem;
  margin: 0;
  padding: 0 0 0.6rem;
  list-style: none;
  overflow-x: auto;
  scrollbar-width: thin;
}

.page-privacy .privacy-toc__list li {
  flex: 0 0 auto;
}

.page-privacy .privacy-toc__list a {
  display: block;
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--priv-line);
  border-radius: var(--r-pill);
  background: rgba(13, 39, 64, 0.55);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  color: var(--text-soft);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-privacy .privacy-toc__list a:hover,
.page-privacy .privacy-toc__list a:focus-visible {
  color: var(--ink-950);
  background: var(--cyan);
  border-color: var(--cyan);
}

/* ---------- 章节 ---------- */
.page-privacy .doc-section {
  border-top: 1px solid var(--priv-line);
  padding: clamp(0.9rem, 2.4vw, 1.4rem) 0 clamp(0.4rem, 1.4vw, 0.8rem);
}

.page-privacy .doc-section:first-child {
  border-top-color: var(--line-cyan);
}

.page-privacy .doc-section__head {
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
  cursor: pointer;
  list-style: none;
  padding: 0.2rem 0;
}

.page-privacy .doc-section__head::-webkit-details-marker {
  display: none;
}

.page-privacy .doc-section__head::after {
  content: "＋";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--cyan);
  transition: transform var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-privacy .doc-section[open] > .doc-section__head::after {
  content: "−";
  color: var(--text-dim);
}

.page-privacy .doc-section__head:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
  border-radius: var(--r-xs);
}

.page-privacy .doc-section__num {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.page-privacy .doc-section__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(1.15rem, 3.4vw, 1.6rem);
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-privacy .doc-prose {
  padding: 0.6rem 0 1.2rem clamp(0, 2vw, 2.2rem);
  max-width: 68ch;
}

.page-privacy .doc-prose p {
  margin: 0 0 0.95rem;
  font-size: 0.95rem;
  line-height: 1.85;
  color: var(--text);
}

.page-privacy .doc-prose strong {
  color: var(--cyan-glow);
  font-weight: 700;
}

.page-privacy .doc-list {
  margin: 0 0 1.1rem;
  padding: 0;
  list-style: none;
}

.page-privacy .doc-list li {
  position: relative;
  padding-left: 1.15rem;
  margin-bottom: 0.6rem;
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--text);
}

.page-privacy .doc-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  border-radius: 2px;
  background: var(--orange);
  transform: rotate(45deg);
}

.page-privacy .doc-note {
  padding: 0.75rem 0.95rem;
  border-left: 2px solid var(--clay);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
  background: rgba(13, 39, 64, 0.65);
  color: var(--text-soft);
  font-size: 0.86rem;
  line-height: 1.75;
}

.page-privacy .doc-link {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(39, 230, 245, 0.35);
  word-break: break-word;
}

.page-privacy .doc-link:hover,
.page-privacy .doc-link:focus-visible {
  color: var(--white);
  border-bottom-color: var(--white);
}

/* ---------- 三类信息卡 ---------- */
.page-privacy .info-grid {
  display: grid;
  gap: 0.8rem;
  margin: 0 0 1.1rem;
}

.page-privacy .info-card {
  padding: 0.95rem 1.05rem;
  border: 1px solid var(--priv-line);
  border-radius: var(--r-md);
  background: var(--ink-800);
  border-left: 3px solid var(--cyan);
}

.page-privacy .info-card:nth-child(2) {
  border-left-color: var(--orange);
}

.page-privacy .info-card:nth-child(3) {
  border-left-color: var(--lime);
}

.page-privacy .info-card__title {
  margin: 0 0 0.4rem;
  font-family: var(--font-display);
  font-size: 0.98rem;
  font-weight: 800;
  color: var(--white);
}

.page-privacy .info-card p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.75;
  color: var(--text-soft);
}

/* ---------- 安全措施分层 ---------- */
.page-privacy .sec-layers {
  display: grid;
  gap: 0.75rem;
  margin: 0 0 1.1rem;
  padding: 1rem;
  border: 1px solid var(--priv-line);
  border-radius: var(--r-md);
  background: var(--ink-800);
}

.page-privacy .sec-layer {
  display: grid;
  grid-template-columns: 5.2rem 1fr;
  grid-template-areas:
    "key desc"
    "bar bar";
  gap: 0.35rem 0.8rem;
  align-items: center;
}

.page-privacy .sec-layer__key {
  grid-area: key;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  color: var(--cyan-glow);
}

.page-privacy .sec-layer__desc {
  grid-area: desc;
  font-size: 0.84rem;
  line-height: 1.7;
  color: var(--text-soft);
}

.page-privacy .sec-layer__bar {
  grid-area: bar;
  display: block;
  height: 5px;
  border-radius: var(--r-pill);
}

.page-privacy .sec-layer__bar--a {
  width: 92%;
  background: linear-gradient(90deg, var(--cyan), rgba(39, 230, 245, 0.15));
}

.page-privacy .sec-layer__bar--b {
  width: 76%;
  background: linear-gradient(90deg, var(--orange), rgba(255, 138, 42, 0.12));
}

.page-privacy .sec-layer__bar--c {
  width: 60%;
  background: linear-gradient(90deg, var(--lime), rgba(184, 255, 90, 0.12));
}

/* ---------- 联系卡 ---------- */
.page-privacy .contact-card {
  margin: 0 0 1.1rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line-cyan);
  border-radius: var(--r-md);
  background: linear-gradient(160deg, rgba(13, 39, 64, 0.95), rgba(6, 21, 37, 0.95));
  box-shadow: var(--shadow-float);
}

.page-privacy .contact-row {
  display: grid;
  gap: 0.2rem;
  padding: 0.5rem 0;
  border-bottom: 1px dashed var(--priv-line);
}

.page-privacy .contact-row:last-of-type {
  border-bottom: none;
}

.page-privacy .contact-key {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.page-privacy .contact-val {
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--white);
}

.page-privacy .contact-val--mono {
  font-family: var(--font-mono);
  font-size: 0.84rem;
  color: var(--text-soft);
}

.page-privacy .contact-note {
  margin: 0.75rem 0 0;
  font-size: 0.82rem;
  line-height: 1.75;
  color: var(--text-soft);
}

.page-privacy .inline-links {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.9rem;
  font-size: 0.88rem;
  color: var(--text-dim);
}

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

  .page-privacy .privacy-hero__inner {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: center;
  }

  .page-privacy .contact-row {
    grid-template-columns: 6.5rem minmax(0, 1fr);
    align-items: baseline;
    gap: 0.8rem;
  }
}

@media (min-width: 980px) {
  .page-privacy .privacy-layout {
    grid-template-columns: 232px minmax(0, 1fr);
    align-items: start;
  }

  .page-privacy .privacy-toc {
    position: sticky;
    top: 6.2rem;
  }

  .page-privacy .privacy-toc__list {
    flex-direction: column;
    gap: 0.3rem;
    overflow: visible;
    padding: 0;
  }

  .page-privacy .privacy-toc__list a {
    border-radius: var(--r-sm);
    white-space: normal;
    padding: 0.5rem 0.75rem;
  }

  .page-privacy .privacy-hero__title {
    max-width: 22ch;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-toc__list a,
  .page-privacy .doc-section__head::after {
    transition: none;
  }
}