.page-privacy {
  --privacy-grid-line: rgba(255, 248, 240, 0.05);
  --privacy-grid-line-bold: rgba(255, 248, 240, 0.1);
  --privacy-divider: rgba(15, 23, 42, 0.12);
  --privacy-card-gap: 16px;
}

/* ===== Hero ===== */
.page-privacy .privacy-hero {
  position: relative;
  overflow: hidden;
  background: var(--space-black);
  color: var(--text-on-dark);
}

.page-privacy .privacy-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--privacy-grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--privacy-grid-line) 1px, transparent 1px);
  background-size: 26px 26px;
  pointer-events: none;
}

.page-privacy .privacy-hero::after {
  content: "";
  position: absolute;
  right: -140px;
  bottom: -180px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle,
      rgba(244, 162, 97, 0.22) 0%,
      rgba(230, 57, 70, 0.08) 42%,
      transparent 70%);
  pointer-events: none;
}

.page-privacy .privacy-hero-container {
  position: relative;
  z-index: 1;
}

.page-privacy .privacy-hero .breadcrumb {
  padding-top: 20px;
  color: rgba(255, 248, 240, 0.62);
  font-size: 14px;
}

.page-privacy .privacy-hero .breadcrumb a {
  color: rgba(255, 248, 240, 0.85);
  text-decoration: none;
  transition: color var(--transition);
}

.page-privacy .privacy-hero .breadcrumb a:hover {
  color: var(--bright-yellow);
}

.page-privacy .breadcrumb-sep {
  margin: 0 8px;
  color: var(--flame-orange);
}

.page-privacy .privacy-hero-grid {
  display: grid;
  gap: 36px;
  padding: 28px 0 64px;
}

.page-privacy .privacy-hero-copy {
  min-width: 0;
}

.page-privacy .privacy-hero-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.18em;
  color: var(--flame-orange);
  text-transform: uppercase;
}

.page-privacy .privacy-hero h1 {
  margin: 10px 0 6px;
  font-family: var(--font-title);
  font-size: clamp(34px, 6.4vw, 62px);
  line-height: 1.08;
  letter-spacing: 0.01em;
  color: var(--text-on-dark);
}

.page-privacy .privacy-hero-sub {
  margin: 0 0 18px;
  font-family: var(--font-title);
  font-size: 17px;
  letter-spacing: 0.24em;
  color: var(--flame-orange);
}

.page-privacy .privacy-hero-desc {
  margin: 0;
  max-width: 640px;
  font-size: 15px;
  line-height: 1.85;
  color: rgba(255, 248, 240, 0.76);
}

.page-privacy .privacy-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.page-privacy .privacy-hero-tags .tag {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
}

.page-privacy .privacy-hero-figure {
  margin: 0 auto;
  width: min(300px, 100%);
  position: relative;
}

.page-privacy .privacy-hero-figure::before {
  content: "";
  position: absolute;
  inset: -10px;
  border: 1px solid rgba(255, 248, 240, 0.12);
  transform: rotate(2deg);
}

.page-privacy .privacy-hero-figure img {
  position: relative;
  z-index: 1;
  display: block;
  width: 100%;
  max-width: 300px;
  height: auto;
  border: 1px solid rgba(255, 248, 240, 0.24);
  background: var(--space-black-light);
  box-shadow: 0 28px 56px rgba(0, 0, 0, 0.4);
}

.page-privacy .privacy-hero-fire {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 4px;
  background: linear-gradient(90deg,
      var(--fire-red) 0%,
      var(--flame-orange) 55%,
      var(--bright-yellow) 100%);
  z-index: 2;
}

/* ===== 正文主体 ===== */
.page-privacy .privacy-main {
  background: var(--cream);
  padding: 56px 0 72px;
}

.page-privacy .privacy-layout {
  display: grid;
  gap: 36px;
}

/* 索引 */
.page-privacy .privacy-index {
  background: var(--space-black);
  border-left: 4px solid var(--fire-red);
  padding: 22px 20px;
  color: var(--text-on-dark);
}

.page-privacy .privacy-index-title {
  margin: 0 0 14px;
  font-family: var(--font-title);
  font-size: 18px;
  letter-spacing: 0.08em;
  color: var(--text-on-dark);
}

.page-privacy .privacy-index-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-privacy .privacy-index-list a {
  display: block;
  padding: 8px 12px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-on-dark);
  text-decoration: none;
  border: 1px solid rgba(255, 248, 240, 0.2);
  transition: background-color var(--transition), border-color var(--transition);
}

.page-privacy .privacy-index-list a:hover,
.page-privacy .privacy-index-list a:focus {
  background: var(--fire-red);
  border-color: var(--fire-red);
}

.page-privacy .privacy-index-version {
  margin: 18px 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: rgba(255, 248, 240, 0.55);
}

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

/* 折叠区 */
.page-privacy .privacy-content {
  display: grid;
  gap: var(--privacy-card-gap);
}

.page-privacy .privacy-fold {
  background: #fff;
  border: 1px solid var(--privacy-divider);
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition);
}

.page-privacy .privacy-fold[open] {
  box-shadow: var(--shadow-lift);
}

.page-privacy .privacy-fold summary {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 18px;
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.page-privacy .privacy-fold summary::-webkit-details-marker {
  display: none;
}

.page-privacy .privacy-fold summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 22px;
  line-height: 1;
  color: var(--fire-red);
}

.page-privacy .privacy-fold[open] summary::after {
  content: "−";
}

.page-privacy .privacy-fold[open] .privacy-fold-title {
  color: var(--fire-red);
}

.page-privacy .privacy-fold-no {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--fire-red);
  border: 1px solid rgba(230, 57, 70, 0.4);
  padding: 3px 7px;
  flex: 0 0 auto;
}

.page-privacy .privacy-fold-title {
  font-family: var(--font-title);
  font-size: 20px;
  line-height: 1.3;
  color: var(--text-main);
  transition: color var(--transition);
}

.page-privacy .privacy-fold-body {
  padding: 0 20px 22px;
  border-top: 1px solid var(--light-gray);
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-main);
}

.page-privacy .privacy-fold-body p {
  margin: 14px 0 0;
}

.page-privacy .privacy-fold-body > p:first-child {
  margin: 18px 0 0;
}

.page-privacy .privacy-fold-body ul {
  list-style: none;
  margin: 14px 0 0;
  padding: 0;
}

.page-privacy .privacy-fold-body li {
  position: relative;
  padding: 10px 0 10px 18px;
  border-bottom: 1px solid var(--light-gray);
}

.page-privacy .privacy-fold-body li:last-child {
  border-bottom: 0;
}

.page-privacy .privacy-fold-body li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 22px;
  width: 8px;
  height: 2px;
  background: var(--fire-red);
}

.page-privacy .privacy-fold-body strong {
  color: var(--space-black);
  font-weight: 700;
}

.page-privacy .privacy-fold-body a {
  color: var(--fire-red-deep);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.page-privacy .privacy-fold-body a:hover {
  color: var(--fire-red);
}

/* ===== 合规声明 ===== */
.page-privacy .privacy-trust {
  background: var(--space-black);
  padding: 44px 0 64px;
}

.page-privacy .privacy-fire-line {
  height: 5px;
  background: linear-gradient(90deg,
      var(--fire-red) 0%,
      var(--flame-orange) 50%,
      var(--bright-yellow) 100%);
}

.page-privacy .privacy-trust p {
  margin: 0;
  max-width: 1100px;
  color: rgba(255, 248, 240, 0.78);
  font-size: 14px;
  line-height: 1.9;
  border-left: 3px solid var(--flame-orange);
  padding-left: 20px;
}

/* ===== 折叠展开动画 ===== */
@keyframes privacy-fold-in {
  from {
    opacity: 0;
    transform: translateY(-6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-privacy .privacy-fold[open] .privacy-fold-body {
  animation: privacy-fold-in 240ms ease-out;
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-fold[open] .privacy-fold-body {
    animation: none;
  }
}

/* ===== 桌面布局 ===== */
@media (min-width: 960px) {
  .page-privacy .privacy-hero-grid {
    grid-template-columns: minmax(0, 1fr) 320px;
    align-items: center;
    gap: 56px;
    padding: 56px 0 84px;
  }

  .page-privacy .privacy-hero-figure {
    margin: 0;
    justify-self: end;
  }

  .page-privacy .privacy-main {
    padding: 72px 0 80px;
  }

  .page-privacy .privacy-layout {
    grid-template-columns: 260px minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }

  .page-privacy .privacy-index {
    position: sticky;
    top: 110px;
    display: block;
    padding: 30px 24px;
  }

  .page-privacy .privacy-index-list {
    display: grid;
    gap: 4px;
  }

  .page-privacy .privacy-index-list a {
    display: flex;
    align-items: baseline;
    gap: 10px;
    padding: 10px 12px;
    border: 0;
    border-left: 2px solid rgba(255, 248, 240, 0.18);
    font-weight: 500;
    transition: border-color var(--transition), background-color var(--transition);
  }

  .page-privacy .privacy-index-list a:hover,
  .page-privacy .privacy-index-list a:focus {
    background: rgba(230, 57, 70, 0.18);
    border-color: var(--fire-red);
  }

  .page-privacy .privacy-fold summary {
    padding: 24px 28px;
  }

  .page-privacy .privacy-fold-body {
    padding: 0 28px 26px;
  }
}