.page-privacy {
  background: var(--c-void);
  color: var(--c-starlight);
}

/* ---------- 页眉氛围 ---------- */
.page-privacy .privacy-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: var(--sp-5);
  background:
    radial-gradient(120% 90% at 84% 4%, rgba(185, 167, 255, 0.24), transparent 62%),
    radial-gradient(90% 80% at 4% 96%, rgba(69, 240, 224, 0.14), transparent 58%),
    var(--c-void);
  border-bottom: 1px solid var(--c-line);
}

.page-privacy .privacy-hero::before {
  content: "";
  position: absolute;
  inset: -20% -10%;
  z-index: -1;
  background-image:
    repeating-linear-gradient(112deg, rgba(185, 167, 255, 0.14) 0 1px, transparent 1px 88px),
    repeating-linear-gradient(28deg, rgba(138, 148, 184, 0.1) 0 1px, transparent 1px 132px);
  opacity: 0.55;
  pointer-events: none;
}

.page-privacy .privacy-hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-4);
  align-items: center;
}

.page-privacy .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: var(--sp-2);
  font-size: var(--fs-note);
  letter-spacing: 0.04em;
}

.page-privacy .breadcrumb__item {
  color: var(--c-mist);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.page-privacy .breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 0.5rem;
  color: rgba(138, 148, 184, 0.6);
}

.page-privacy .breadcrumb__item:hover,
.page-privacy .breadcrumb__item:focus-visible {
  color: var(--c-cyan);
}

.page-privacy .breadcrumb__item[aria-current="page"] {
  color: var(--c-starlight);
}

.page-privacy .privacy-hero__copy .eyebrow {
  margin: 0 0 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: var(--track-mono);
  color: var(--c-gold);
}

.page-privacy .privacy-hero__title {
  margin: 0 0 var(--sp-2);
  font-family: var(--font-head);
  font-size: clamp(2rem, 5.4vw, 3.25rem);
  font-weight: 800;
  line-height: var(--lh-head);
  letter-spacing: var(--track-head);
  color: var(--c-starlight);
}

.page-privacy .privacy-hero__lead {
  margin: 0;
  max-width: 46ch;
  font-size: var(--fs-sub);
  line-height: var(--lh-body);
  color: rgba(244, 247, 255, 0.78);
}

.page-privacy .privacy-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.4rem;
  margin-top: var(--sp-3);
  padding-top: var(--sp-2);
  border-top: 1px dashed var(--c-line-soft);
  font-family: var(--font-mono);
  font-size: var(--fs-note);
  letter-spacing: 0.06em;
  color: var(--c-mist);
}

.page-privacy .privacy-hero__visual {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  background: var(--c-nebula);
  box-shadow: 0 24px 60px -30px var(--c-glow-violet);
}

.page-privacy .privacy-hero__visual img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  max-width: 100%;
}

/* ---------- 阅读区布局 ---------- */
.page-privacy .privacy-reader {
  padding-block: var(--sp-5) var(--sp-6);
  background:
    radial-gradient(80% 50% at 100% 0%, rgba(17, 26, 51, 0.95), transparent 70%),
    var(--c-void);
}

.page-privacy .privacy-reader__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--sp-3);
  align-items: start;
}

/* ---------- 左侧章节索引 ---------- */
.page-privacy .privacy-rail {
  padding: var(--sp-3);
  border: 1px solid var(--c-line);
  border-radius: var(--r-lg);
  background:
    linear-gradient(165deg, rgba(185, 167, 255, 0.14), transparent 46%),
    var(--c-nebula);
  box-shadow: inset 0 1px 0 rgba(244, 247, 255, 0.06);
}

.page-privacy .privacy-rail__label {
  margin: 0 0 var(--sp-2);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: var(--track-mono);
  text-transform: uppercase;
  color: var(--c-gold);
}

.page-privacy .privacy-rail__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.3rem;
}

.page-privacy .privacy-rail__link {
  display: flex;
  gap: 0.6rem;
  align-items: baseline;
  padding: 0.5rem 0.75rem;
  border-radius: var(--r-pill);
  font-size: 0.875rem;
  line-height: 1.55;
  color: rgba(244, 247, 255, 0.82);
  text-decoration: none;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-privacy .privacy-rail__link:hover,
.page-privacy .privacy-rail__link:focus-visible {
  background: rgba(69, 240, 224, 0.12);
  color: var(--c-cyan);
  outline: none;
}

.page-privacy .privacy-rail__link:focus-visible {
  box-shadow: 0 0 0 2px var(--c-cyan);
}

.page-privacy .privacy-rail__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  color: var(--c-violet);
}

.page-privacy .privacy-rail__hint {
  margin: var(--sp-3) 0 0;
  padding-top: var(--sp-2);
  border-top: 1px dashed var(--c-line-soft);
  font-size: var(--fs-note);
  line-height: 1.7;
  color: var(--c-mist);
}

/* ---------- 奶油纸正文 ---------- */
.page-privacy .privacy-doc {
  min-width: 0;
  padding: clamp(1.25rem, 4vw, 3rem);
  border-radius: var(--r-lg);
  background: var(--c-paper);
  color: var(--c-ink);
  box-shadow: 0 30px 70px -42px rgba(0, 0, 0, 0.75);
}

.page-privacy .doc-sec {
  padding-block: var(--sp-3);
  border-top: 1px solid rgba(42, 31, 26, 0.14);
}

.page-privacy .doc-sec:first-of-type {
  padding-top: 0;
  border-top: 0;
}

.page-privacy .doc-sec__head {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding-block: 0.15rem;
  list-style: none;
  cursor: pointer;
}

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

.page-privacy .doc-sec__head:focus-visible {
  outline: 2px solid var(--c-signal);
  outline-offset: 3px;
  border-radius: var(--r-sm);
}

.page-privacy .doc-sec__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--c-signal);
}

.page-privacy .doc-sec__title {
  flex: 1 1 auto;
  margin: 0;
  font-family: var(--font-head);
  font-size: clamp(1.125rem, 2.1vw, 1.4rem);
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: 0.02em;
  color: var(--c-ink);
}

.page-privacy .doc-sec__head::after {
  flex: none;
  content: "+";
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 1;
  color: rgba(42, 31, 26, 0.45);
  transition: color var(--dur) var(--ease);
}

.page-privacy .doc-sec[open] > .doc-sec__head::after {
  content: "−";
  color: var(--c-signal);
}

.page-privacy .doc-sec__body {
  margin-top: var(--sp-2);
}

.page-privacy .doc-sec__body p {
  margin: 0 0 0.9rem;
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--c-ink);
}

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

.page-privacy .doc-sec__body ul {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.page-privacy .doc-sec__body ul:last-child {
  margin-bottom: 0;
}

.page-privacy .doc-sec__body li {
  position: relative;
  padding-left: 1.35rem;
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--c-ink);
}

.page-privacy .doc-sec__body li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.78em;
  width: 0.6rem;
  height: 2px;
  border-radius: 2px;
  background: rgba(42, 31, 26, 0.4);
}

.page-privacy .doc-sec__body li strong {
  font-weight: 700;
  color: var(--c-ink);
}

/* 联系信息条 */
.page-privacy .privacy-contact {
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.page-privacy .privacy-contact li {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 0.9rem;
  padding: 0.7rem 0.95rem;
  border-radius: var(--r-sm);
  background: rgba(42, 31, 26, 0.06);
}

.page-privacy .privacy-contact li::before {
  display: none;
}

.page-privacy .privacy-contact__k {
  flex: none;
  min-width: 4.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  line-height: 1.9;
  color: rgba(42, 31, 26, 0.6);
}

.page-privacy .privacy-contact__v {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--c-ink);
  text-decoration: none;
  word-break: break-word;
}

.page-privacy a.privacy-contact__v {
  border-bottom: 1px solid rgba(255, 107, 74, 0.5);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-privacy a.privacy-contact__v:hover,
.page-privacy a.privacy-contact__v:focus-visible {
  color: #c8442a;
  border-bottom-color: #c8442a;
}

/* 相关页面 */
.page-privacy .privacy-doc__links {
  margin-top: var(--sp-4);
  padding-top: var(--sp-3);
  border-top: 1px dashed rgba(42, 31, 26, 0.22);
}

.page-privacy .privacy-doc__links-title {
  margin: 0 0 var(--sp-2);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: var(--track-mono);
  color: rgba(42, 31, 26, 0.62);
}

.page-privacy .privacy-doc__links ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.page-privacy .privacy-doc__links li {
  display: grid;
  gap: 0.15rem;
  padding: 0.75rem 0.95rem;
  border: 1px solid rgba(42, 31, 26, 0.16);
  border-radius: var(--r-sm);
  background: rgba(255, 255, 255, 0.4);
}

.page-privacy .privacy-doc__links a {
  font-weight: 700;
  font-size: 1rem;
  color: var(--c-ink);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 107, 74, 0.55);
  justify-self: start;
}

.page-privacy .privacy-doc__links a:hover,
.page-privacy .privacy-doc__links a:focus-visible {
  color: #c8442a;
  border-bottom-color: #c8442a;
}

.page-privacy .privacy-doc__links span {
  font-size: var(--fs-note);
  line-height: 1.65;
  color: rgba(42, 31, 26, 0.68);
}

/* 回到顶部 */
.page-privacy .back-to-top {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin: 0 var(--gutter) var(--sp-5);
  padding: 0.65rem 1.15rem;
  border: 1px solid var(--c-line);
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: var(--fs-note);
  letter-spacing: 0.08em;
  color: var(--c-starlight);
  text-decoration: none;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-privacy .back-to-top::before {
  content: "↑";
  color: var(--c-cyan);
}

.page-privacy .back-to-top:hover,
.page-privacy .back-to-top:focus-visible {
  border-color: var(--c-cyan);
  color: var(--c-cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-privacy .doc-sec__body {
    padding-left: 1.9rem;
    border-left: 1px solid rgba(42, 31, 26, 0.12);
  }

  .page-privacy .privacy-doc__links ul {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-privacy .back-to-top {
    margin-inline: calc(var(--gutter) + 0.5rem);
  }
}

@media (min-width: 900px) {
  .page-privacy .privacy-hero {
    padding-block: var(--sp-6) var(--sp-5);
  }

  .page-privacy .privacy-hero__inner {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: var(--sp-5);
  }
}

@media (min-width: 980px) {
  .page-privacy .privacy-reader__inner {
    grid-template-columns: 268px minmax(0, 1fr);
    gap: var(--sp-4);
  }

  .page-privacy .privacy-rail {
    position: sticky;
    top: calc(var(--header-h) + 1rem);
    max-height: calc(100vh - var(--header-h) - 2rem);
    overflow-y: auto;
  }

  .page-privacy .back-to-top {
    margin-inline: var(--gutter);
  }
}

/* ---------- 动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-hero::before {
    opacity: 0.3;
  }

  .page-privacy .privacy-rail__link,
  .page-privacy .doc-sec__head::after,
  .page-privacy .back-to-top {
    transition: none;
  }
}

/* ---------- 打印视图 ---------- */
@media print {
  .page-privacy .privacy-hero__visual,
  .page-privacy .privacy-rail,
  .page-privacy .back-to-top {
    display: none;
  }

  .page-privacy,
  .page-privacy .privacy-reader,
  .page-privacy .privacy-hero {
    background: #ffffff;
    color: #000000;
  }

  .page-privacy .privacy-hero {
    border-bottom: 1px solid #cccccc;
  }

  .page-privacy .privacy-hero__title,
  .page-privacy .privacy-hero__lead,
  .page-privacy .privacy-hero__meta,
  .page-privacy .breadcrumb__item {
    color: #000000;
  }

  .page-privacy .privacy-doc {
    padding: 0;
    border-radius: 0;
    box-shadow: none;
    background: #ffffff;
  }

  .page-privacy .doc-sec {
    break-inside: avoid;
    border-top-color: #cccccc;
  }

  .page-privacy .doc-sec__head::after {
    display: none;
  }

  .page-privacy .doc-sec__body {
    padding-left: 1rem;
    border-left-color: #cccccc;
  }
}