/* ===== 页面专属：隐私政策 ===== */
.page-privacy {
  --privacy-body: rgba(242, 237, 228, 0.86);
  --privacy-soft: rgba(154, 168, 184, 0.75);
  --privacy-panel: rgba(22, 41, 77, 0.72);
  --privacy-track: 1px solid var(--grid-line);
  background: var(--deep-space);
  overflow-x: clip;
}

/* 首屏 */
.privacy-hero {
  position: relative;
  padding: 2rem 0 0;
  background:
    linear-gradient(180deg, rgba(11, 29, 58, 0.92) 0%, var(--deep-space) 78%),
    repeating-linear-gradient(90deg, transparent 0 47px, var(--grid-line) 48px 49px);
  border-bottom: 1px solid var(--grid-line);
}

.privacy-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(var(--grid-line) 1px, transparent 1px);
  background-size: 100% 44px;
  pointer-events: none;
  opacity: 0.55;
}

.privacy-hero__content {
  position: relative;
  z-index: 1;
  padding-top: 2rem;
  text-align: center;
}

.privacy-hero__content h1 {
  margin: 0.5rem 0 0;
  font-size: clamp(2.4rem, 6vw, 4.5rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  font-weight: 900;
  color: var(--sand-cream);
}

.privacy-hero__lead {
  max-width: 660px;
  margin: 1.25rem auto 0;
  color: var(--privacy-body);
  font-size: 1.06rem;
  line-height: 1.8;
}

.privacy-hero__meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem 1.5rem;
  margin-top: 1.75rem;
  padding-bottom: 2rem;
}

.privacy-hero__meta span {
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  color: var(--mineral-gray);
  border-left: 1px solid var(--grid-line);
  padding-left: 1.25rem;
}

.privacy-hero__meta span:first-child {
  border-left: 0;
  padding-left: 0;
}

.privacy-hero__media {
  position: relative;
  z-index: 1;
  overflow: hidden;
  border-top: 1px solid var(--grid-line);
  border-bottom: 1px solid var(--grid-line);
}

.privacy-hero__media img {
  display: block;
  width: 100%;
  height: 120px;
  object-fit: cover;
}

/* 蓝图网格：索引面板 */
.privacy-index {
  position: relative;
  z-index: 2;
  margin: 1.25rem 0 3rem;
  padding: 1.5rem 1.5rem 1.75rem;
  background: var(--privacy-panel);
  border: 1px solid var(--grid-line);
}

.privacy-index::after {
  content: "";
  position: absolute;
  left: -1px;
  top: -1px;
  width: 40px;
  height: 40px;
  border-left: 2px solid var(--neon-green);
  border-top: 2px solid var(--neon-green);
  pointer-events: none;
}

.privacy-index__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  border-bottom: var(--privacy-track);
  padding-bottom: 1rem;
}

.privacy-index__num {
  font-size: 2.75rem;
  line-height: 1;
  font-weight: 900;
  color: var(--signal-orange);
  letter-spacing: -0.02em;
}

.privacy-index__label-group {
  text-align: right;
}

.privacy-index__label {
  display: block;
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  color: var(--neon-green);
  text-transform: uppercase;
}

.privacy-index__sub {
  display: block;
  font-size: 0.78rem;
  color: var(--mineral-gray);
  margin-top: 0.25rem;
}

.privacy-index__list {
  list-style: none;
  margin: 1.25rem 0 1rem;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.4rem 0.75rem;
}

.privacy-index__list a {
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.65rem 0.6rem;
  text-decoration: none;
  color: var(--sand-cream);
  border: 1px solid transparent;
  font-size: 0.94rem;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

.privacy-index__list a span {
  color: var(--signal-orange);
  font-weight: 800;
  font-size: 0.78rem;
  min-width: 1.6rem;
}

.privacy-index__list a:hover {
  color: var(--neon-green);
  border-color: var(--grid-line);
  background: rgba(183, 255, 26, 0.05);
}

.privacy-index__top {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
  color: var(--mineral-gray);
  text-decoration: none;
  font-size: 0.85rem;
}

.privacy-index__top::before {
  content: "↑";
  color: var(--signal-orange);
  font-weight: 700;
}

.privacy-index__top:hover {
  color: var(--neon-green);
}

/* 政策章节：details 折叠语义 */
.privacy-part {
  position: relative;
  border-top: 1px solid rgba(183, 255, 26, 0.12);
  scroll-margin-top: 2rem;
}

.privacy-part:first-child {
  border-top: 0;
}

.privacy-part__head {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 1.75rem 0 1.25rem;
  cursor: pointer;
}

.privacy-part__head::-webkit-details-marker {
  display: none;
}

.privacy-part__head::marker {
  content: "";
}

.privacy-part__index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3.1rem;
  height: 3.1rem;
  flex: 0 0 auto;
  color: var(--neon-green);
  background: var(--deep-ink);
  border: 1px solid var(--grid-line);
  font-size: 1.05rem;
  font-weight: 900;
  letter-spacing: 0.02em;
}

.privacy-part__title {
  font-size: clamp(1.35rem, 2.6vw, 2.1rem);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -0.015em;
  color: var(--sand-cream);
  margin: 0;
}

.privacy-part__toggle {
  margin-left: auto;
  flex: 0 0 auto;
  width: 0.6rem;
  height: 0.6rem;
  transform: rotate(-45deg);
  border-right: 2px solid var(--mineral-gray);
  border-bottom: 2px solid var(--mineral-gray);
  transition: transform 0.18s ease;
}

.privacy-part[open] .privacy-part__toggle {
  transform: rotate(45deg);
}

.privacy-part[open] .privacy-part__head {
  padding-bottom: 1rem;
}

.privacy-part__body {
  position: relative;
  margin-left: 0.875rem;
  padding: 0 0 2.75rem 1.5rem;
  border-left: 1px solid var(--grid-line);
}

.privacy-part__body::after {
  content: "";
  position: absolute;
  left: -3px;
  top: 0;
  width: 5px;
  height: 5px;
  background: var(--neon-green);
}

.privacy-part__body p {
  margin: 0 0 1.15rem;
  color: var(--privacy-body);
  font-size: 1rem;
  line-height: 1.85;
}

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

.privacy-part__body a {
  color: var(--neon-green);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.privacy-principle {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  margin: 1.4rem 0 1.15rem;
  padding: 0.95rem 1.1rem;
  border-left: 3px solid var(--neon-green);
  background: rgba(183, 255, 26, 0.05);
  color: var(--neon-green);
  font-size: 1.02rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.privacy-principle::before {
  content: "■";
  font-size: 0.6rem;
  color: var(--signal-orange);
}

/* 信息卡片列表 */
.privacy-list,
.privacy-scenarios {
  list-style: none;
  margin: 0 0 1.4rem;
  padding: 0;
  display: grid;
  gap: 0.875rem;
}

.privacy-list li,
.privacy-scenarios li {
  position: relative;
  padding: 1rem 1.125rem 1rem 1.375rem;
  background: rgba(5, 12, 24, 0.45);
  border-left: 2px solid var(--neon-green);
}

.privacy-list li::before,
.privacy-scenarios li::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 1.2rem;
  width: 8px;
  height: 8px;
  background: var(--deep-ink);
  border: 2px solid var(--neon-green);
  border-radius: 50%;
}

.privacy-list li > :first-child,
.privacy-scenarios li > :first-child {
  display: block;
  font-weight: 800;
  color: var(--sand-cream);
  letter-spacing: 0.02em;
  margin-bottom: 0.35rem;
}

.privacy-list li > :last-child,
.privacy-scenarios li > :last-child {
  color: var(--privacy-body);
  line-height: 1.7;
  font-size: 0.95rem;
}

/* 信息使用：编号步骤 */
.privacy-steps {
  counter-reset: privacy-step;
  list-style: none;
  margin: 0 0 1.4rem;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.privacy-steps li {
  counter-increment: privacy-step;
  padding: 1rem 1.1rem;
  background: rgba(5, 12, 24, 0.45);
  border-left: 2px solid var(--signal-orange);
  color: var(--privacy-body);
  line-height: 1.75;
  font-size: 0.95rem;
}

.privacy-steps li::before {
  content: counter(privacy-step, decimal-leading-zero);
  display: block;
  font-weight: 800;
  font-size: 0.82rem;
  color: var(--signal-orange);
  line-height: 1.4;
}

.privacy-steps li > :first-child {
  display: block;
  color: var(--sand-cream);
  font-weight: 800;
  margin-bottom: 0.25rem;
  margin-top: 0.15rem;
}

/* 用户权利：卡片网格 */
.privacy-rights-grid {
  display: grid;
  gap: 0.75rem;
  margin: 0 0 1.4rem;
}

.privacy-rights-grid article {
  padding: 1rem 1.25rem;
  background: var(--privacy-panel);
  border-left: 2px solid var(--signal-orange);
  color: var(--privacy-body);
  line-height: 1.75;
  font-size: 0.95rem;
}

.privacy-rights-grid article span {
  display: block;
  font-weight: 800;
  color: var(--signal-orange);
  margin-bottom: 0.3rem;
}

/* 结尾联系区域 */
.privacy-closing {
  margin: 4rem 0 0;
  padding: 2rem 1.5rem;
  border: 1px solid var(--grid-line);
  border-top: 3px solid var(--neon-green);
  background:
    linear-gradient(120deg, rgba(5, 12, 24, 0.9), rgba(22, 41, 77, 0.55)),
    repeating-linear-gradient(90deg, transparent 0 44px, var(--grid-line) 45px 46px);
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 2rem;
}

.privacy-closing__text {
  max-width: 460px;
}

.privacy-closing__text h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 900;
  line-height: 1.25;
  margin: 0 0 0.6rem;
  color: var(--sand-cream);
}

.privacy-closing__text p {
  color: var(--privacy-body);
  line-height: 1.8;
  margin: 0;
  font-size: 0.97rem;
}

.privacy-closing__info {
  max-width: 400px;
  font-size: 0.95rem;
  color: var(--privacy-body);
  line-height: 1.8;
  border-left: 1px solid var(--grid-line);
  padding-left: 1.25rem;
  display: grid;
  gap: 0.3rem;
}

.privacy-closing__info strong {
  color: var(--neon-green);
  font-weight: 700;
}

.privacy-closing__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  flex: 1 1 100%;
  margin-top: 0.25rem;
}

/* ===== 响应式 ===== */
@media (min-width: 768px) {
  .privacy-hero {
    padding: 3rem 0 0;
  }

  .privacy-hero__content {
    padding-top: 2.5rem;
  }

  .privacy-hero__media img {
    height: 300px;
  }

  .privacy-index {
    margin-top: 2rem;
  }

  .privacy-index__list {
    grid-template-columns: repeat(3, 1fr);
  }

  .privacy-part__head {
    gap: 1.25rem;
    padding: 2.25rem 0 1.5rem;
  }

  .privacy-part__index {
    width: 3.8rem;
    height: 3.8rem;
    font-size: 1.25rem;
  }

  .privacy-part__body {
    padding-left: 2rem;
    margin-left: 0.9rem;
  }

  .privacy-cards--duo {
    grid-template-columns: repeat(2, 1fr);
  }

  .privacy-rights-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .privacy-rights-grid article:last-child {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1024px) {
  .privacy-layout {
    display: grid;
    grid-template-columns: minmax(0, 220px) minmax(0, 760px) minmax(0, 1fr);
    gap: 2.75rem;
    align-items: start;
  }

  .privacy-index {
    grid-column: 1;
    position: sticky;
    top: 2rem;
    margin: 2rem 0 0;
  }

  .privacy-index__list {
    grid-template-columns: repeat(2, 1fr);
  }

  .privacy-doc {
    grid-column: 2;
    padding-top: 1.5rem;
  }

  .privacy-closing {
    grid-column: 1 / -1;
  }
}