/* ===== 隐私声明 · 页面专属样式 ===== */

.page-privacy {
  --privacy-measure: 62ch;
  --privacy-gap: clamp(28px, 5vw, 56px);
  background: var(--c-paper);
  color: var(--tx);
}

/* ---------- 页首主题带 ---------- */
.page-privacy .privacy-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(30px, 7vw, 68px) var(--pad) clamp(36px, 7vw, 78px);
  color: var(--tx-invert);
  background:
    radial-gradient(130% 96% at 88% -4%, rgba(31, 138, 76, 0.46) 0%, rgba(31, 138, 76, 0) 58%),
    linear-gradient(148deg, var(--c-ink) 0%, var(--c-ink-2) 64%, #0a2233 100%);
}

.page-privacy .privacy-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.45;
  background-image: repeating-linear-gradient(
    0deg,
    rgba(247, 248, 244, 0.04) 0 1px,
    transparent 1px 4px
  );
}

.page-privacy .privacy-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 7px;
  background: linear-gradient(90deg, var(--c-lime) 0%, var(--c-orange) 100%);
}

.page-privacy .privacy-hero__inner {
  position: relative;
  z-index: 1;
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  gap: clamp(26px, 5vw, 48px);
}

.page-privacy .privacy-hero__kicker {
  margin: 0 0 14px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--c-lime);
}

.page-privacy .privacy-hero h1 {
  margin: 0;
  font-family: var(--f-display);
  font-weight: 900;
  font-size: clamp(28px, 6.4vw, 48px);
  line-height: 1.16;
  letter-spacing: -0.02em;
  color: #fff;
}

.page-privacy .privacy-hero__lead {
  margin: 18px 0 0;
  max-width: 46ch;
  font-size: clamp(15px, 2.5vw, 17px);
  line-height: 1.85;
  color: var(--tx-invert-soft);
}

.page-privacy .privacy-hero__points {
  list-style: none;
  margin: clamp(24px, 4vw, 34px) 0 0;
  padding: 0;
  border-top: 1px solid var(--ln-dark);
}

.page-privacy .privacy-hero__points li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px solid var(--ln-dark);
  font-size: clamp(16px, 2.7vw, 20px);
  font-weight: 700;
  line-height: 1.4;
  color: var(--tx-invert);
}

.page-privacy .privacy-hero__idx {
  font-family: var(--f-mono);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--c-lime);
}

.page-privacy .privacy-hero__fig {
  margin: 0;
  padding: 8px;
  border: 1px solid rgba(247, 248, 244, 0.2);
  background: rgba(247, 248, 244, 0.05);
}

.page-privacy .privacy-hero__fig img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.05);
}

/* ---------- 面包屑 ---------- */
.page-privacy .privacy-crumbs {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 18px var(--pad) 0;
}

.page-privacy .privacy-crumbs__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--tx-soft);
}

.page-privacy .privacy-crumbs__list li + li::before {
  content: "/";
  margin-right: 8px;
  color: var(--ln-strong);
}

.page-privacy .privacy-crumbs__list a {
  color: var(--c-green-deep);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.page-privacy .privacy-crumbs__list a:hover {
  border-bottom-color: currentColor;
}

.page-privacy .privacy-crumbs__list [aria-current="page"] {
  color: var(--tx-soft);
}

/* ---------- 主体两栏骨架 ---------- */
.page-privacy .privacy-body {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(24px, 4vw, 44px) var(--pad) clamp(56px, 9vw, 104px);
  display: grid;
  gap: 24px;
}

/* ---------- 章节索引（移动端横向胶囊） ---------- */
.page-privacy .privacy-rail {
  margin: 0 calc(-1 * var(--pad));
  padding: 0 var(--pad);
}

.page-privacy .privacy-rail__caption {
  display: none;
}

.page-privacy .privacy-rail__list {
  list-style: none;
  margin: 0;
  padding: 0 0 6px;
  display: flex;
  gap: 8px;
  overflow-x: auto;
  scrollbar-width: none;
}

.page-privacy .privacy-rail__list::-webkit-scrollbar {
  display: none;
}

.page-privacy .privacy-rail__list a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 15px;
  border: 1px solid var(--ln);
  border-radius: 999px;
  background: #fff;
  font-size: 13px;
  line-height: 1.3;
  color: var(--tx-soft);
  text-decoration: none;
  white-space: nowrap;
  transition: color 0.2s, background 0.2s, border-color 0.2s;
}

.page-privacy .privacy-rail__idx {
  font-family: var(--f-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--c-orange);
}

.page-privacy .privacy-rail__list a[aria-current="true"] {
  border-color: var(--c-green);
  background: rgba(31, 138, 76, 0.09);
  color: var(--c-green-deep);
  font-weight: 700;
}

/* ---------- 正文列 ---------- */
.page-privacy .privacy-main {
  min-width: 0;
  display: grid;
}

.page-privacy .privacy-sec {
  padding-top: clamp(22px, 4vw, 34px);
}

.page-privacy .privacy-sec:first-child {
  padding-top: 0;
}

.page-privacy .privacy-sec + .privacy-sec {
  margin-top: var(--privacy-gap);
  border-top: 6px solid var(--c-mist);
  padding-top: clamp(26px, 4.5vw, 44px);
}

.page-privacy .privacy-sec__head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  margin-bottom: 16px;
}

.page-privacy .privacy-sec__num {
  font-family: var(--f-mono);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--c-orange);
}

.page-privacy .privacy-sec__title {
  margin: 0;
  font-family: var(--f-display);
  font-weight: 900;
  font-size: clamp(22px, 4.6vw, 32px);
  line-height: 1.24;
  letter-spacing: -0.02em;
  color: var(--c-green-deep);
}

.page-privacy .privacy-sec p {
  max-width: var(--privacy-measure);
  margin: 0 0 16px;
  font-size: 16px;
  line-height: 1.85;
  color: var(--tx);
}

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

.page-privacy .privacy-sec a {
  color: var(--c-green-deep);
  text-decoration: none;
  border-bottom: 2px solid rgba(31, 138, 76, 0.32);
  padding-bottom: 1px;
}

.page-privacy .privacy-sec a:hover {
  border-bottom-color: var(--c-green);
}

/* ---------- 条目列表 ---------- */
.page-privacy .privacy-list {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  gap: 13px;
  max-width: var(--privacy-measure);
}

.page-privacy .privacy-list li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--tx);
}

.page-privacy .privacy-list li::before {
  content: "";
  width: 8px;
  height: 8px;
  margin-top: 12px;
  background: var(--c-green);
  transform: rotate(45deg);
}

.page-privacy .privacy-list strong {
  color: var(--c-green-deep);
  font-weight: 700;
}

/* ---------- 条款强调框 ---------- */
.page-privacy .privacy-note {
  max-width: var(--privacy-measure);
  margin: 0 0 16px;
  padding: 15px 18px;
  border-left: 4px solid var(--c-green);
  border-radius: 2px;
  background: var(--c-mist);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.8;
  color: var(--c-green-deep);
}

/* ---------- 用途卡片 ---------- */
.page-privacy .privacy-uses {
  display: grid;
  gap: 14px;
  margin: 0 0 22px;
  max-width: var(--privacy-measure);
}

.page-privacy .privacy-use {
  padding: 16px 18px;
  border: 1px solid var(--ln);
  border-top: 3px solid var(--c-green);
  border-radius: 3px;
  background: #fff;
  box-shadow: var(--sh-card);
}

.page-privacy .privacy-use h3 {
  margin: 0 0 8px;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--c-green-deep);
}

.page-privacy .privacy-use p {
  margin: 0;
  max-width: none;
  font-size: 15px;
  line-height: 1.8;
  color: var(--tx-soft);
}

/* ---------- 折叠条款 ---------- */
.page-privacy .privacy-fold {
  max-width: var(--privacy-measure);
  margin: 4px 0 0;
  border: 1px solid var(--ln);
  border-radius: 3px;
  background: #fff;
}

.page-privacy .privacy-fold .privacy-list {
  margin-bottom: 0;
}

/* ---------- 返回顶部 ---------- */
.page-privacy .privacy-top {
  position: fixed;
  right: clamp(14px, 4vw, 28px);
  bottom: clamp(14px, 4vw, 28px);
  z-index: 40;
  padding: 12px 20px;
  border: 0;
  border-radius: 999px;
  background: var(--c-ink);
  color: var(--tx-invert);
  font-family: var(--f-body);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  cursor: pointer;
  box-shadow: 0 16px 32px -16px rgba(11, 27, 51, 0.72);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity 0.24s var(--ease), transform 0.24s var(--ease), visibility 0.24s;
}

.page-privacy .privacy-top[data-visible="true"] {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* ---------- 平板 ---------- */
@media (min-width: 720px) {
  .page-privacy .privacy-uses {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-privacy .privacy-uses .privacy-use:nth-child(even) {
    transform: translateY(16px);
  }

  .page-privacy .privacy-uses {
    margin-bottom: 38px;
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 1000px) {
  .page-privacy .privacy-hero__inner {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: center;
    gap: clamp(36px, 5vw, 64px);
  }

  .page-privacy .privacy-body {
    grid-template-columns: 214px minmax(0, 1fr);
    gap: clamp(36px, 5vw, 76px);
    align-items: start;
  }

  .page-privacy .privacy-rail {
    position: sticky;
    top: 96px;
    margin: 0;
    padding: 0;
  }

  .page-privacy .privacy-rail__caption {
    display: block;
    margin: 0 0 14px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--tx-soft);
  }

  .page-privacy .privacy-rail__list {
    display: grid;
    gap: 0;
    padding: 0;
    overflow: visible;
    border-left: 2px solid var(--ln);
  }

  .page-privacy .privacy-rail__list a {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    gap: 10px;
    align-items: baseline;
    padding: 10px 14px;
    margin-left: -2px;
    border: 0;
    border-left: 2px solid transparent;
    border-radius: 0;
    background: transparent;
    font-size: 14px;
    line-height: 1.45;
    white-space: normal;
  }

  .page-privacy .privacy-rail__list a:hover {
    background: rgba(31, 138, 76, 0.05);
    color: var(--c-green-deep);
  }

  .page-privacy .privacy-rail__list a[aria-current="true"] {
    border-radius: 0;
    border-left-color: var(--c-green);
    background: rgba(31, 138, 76, 0.08);
  }

  .page-privacy .privacy-sec p,
  .page-privacy .privacy-list,
  .page-privacy .privacy-note,
  .page-privacy .privacy-uses,
  .page-privacy .privacy-fold {
    max-width: 68ch;
  }
}

/* ---------- 动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-top {
    transition: none;
  }

  .page-privacy .privacy-uses .privacy-use:nth-child(even) {
    transform: none;
  }
}