.page-privacy {
  --privacy-num-w: 44px;
  --privacy-gap: 20px;
  --privacy-flow-max: 760px;
  display: block;
}

/* ---------- 首屏：纹理背景 + 超大标题 ---------- */
.page-privacy .privacy-hero {
  position: relative;
  isolation: isolate;
  background-color: var(--ink-950);
  border-bottom: 1px solid var(--line-soft);
  overflow: hidden;
}

.page-privacy .privacy-hero__media {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.page-privacy .privacy-hero__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.42;
}

.page-privacy .privacy-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(180deg, rgba(5, 10, 22, 0.5) 0%, rgba(5, 10, 22, 0.88) 62%, var(--ink-950) 100%),
    repeating-linear-gradient(90deg, var(--line-soft) 0 1px, transparent 1px 104px),
    radial-gradient(120% 90% at 82% 8%, rgba(47, 227, 208, 0.16), transparent 62%);
}

.page-privacy .privacy-hero__inner {
  padding-top: clamp(40px, 7vw, 84px);
  padding-bottom: clamp(48px, 8vw, 96px);
}

.page-privacy .privacy-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 200;
  font-size: clamp(46px, 9vw, 112px);
  line-height: 0.94;
  letter-spacing: 0.01em;
  color: var(--paper-50);
}

.page-privacy .privacy-hero__lead {
  max-width: 48ch;
  margin: 22px 0 0;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--paper-100);
}

/* ---------- 正文骨架 ---------- */
.page-privacy .privacy-body {
  padding-top: clamp(44px, 7vw, 88px);
  padding-bottom: clamp(64px, 10vw, 128px);
}

.page-privacy .legal-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
}

.page-privacy .legal-flow {
  position: relative;
  max-width: var(--privacy-flow-max);
}

/* ---------- 章节折叠条 ---------- */
.page-privacy .legal-section {
  border-bottom: 1px solid var(--line-soft);
}

.page-privacy .legal-section:first-of-type {
  border-top: 1px solid var(--line-soft);
}

.page-privacy .legal-section__summary {
  display: grid;
  grid-template-columns: var(--privacy-num-w) minmax(0, 1fr) 22px;
  gap: var(--privacy-gap);
  align-items: center;
  padding: 22px 0;
  cursor: pointer;
  list-style: none;
}

.page-privacy .legal-section__summary::-webkit-details-marker {
  display: none;
}

.page-privacy .legal-section__summary:focus-visible {
  outline: 1px dashed var(--cyan-400);
  outline-offset: 4px;
}

.page-privacy .legal-section__summary::after {
  content: "+";
  justify-self: end;
  font-family: var(--font-mono);
  font-size: 17px;
  line-height: 1;
  color: var(--slate-400);
  transition: color 240ms var(--ease);
}

.page-privacy .legal-section[open] .legal-section__summary::after {
  content: "\2013";
  color: var(--cyan-400);
}

.page-privacy .legal-section__num {
  font-size: 12.5px;
  letter-spacing: 0.16em;
  color: var(--slate-400);
}

.page-privacy .legal-section[open] .legal-section__num {
  color: var(--orange-500);
}

.page-privacy .legal-section__title {
  margin: 0;
  font-family: var(--font-body);
  font-size: clamp(17px, 1.6vw, 21px);
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: 0.01em;
  color: var(--paper-50);
}

.page-privacy .legal-section__body {
  padding-bottom: 34px;
}

/* ---------- 条款文字 ---------- */
.page-privacy .legal-p {
  max-width: 62ch;
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.88;
  color: var(--paper-100);
}

.page-privacy .legal-list {
  max-width: 62ch;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-privacy .legal-list li {
  position: relative;
  margin-bottom: 14px;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.88;
  color: var(--paper-100);
}

.page-privacy .legal-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.82em;
  width: 10px;
  height: 1px;
  background: var(--line-strong);
}

.page-privacy .legal-list strong {
  font-weight: 500;
  color: var(--paper-50);
}

.page-privacy .legal-note {
  max-width: 62ch;
  margin: 22px 0 0;
  padding: 16px 18px;
  border-left: 2px solid var(--cyan-400);
  background: linear-gradient(180deg, rgba(243, 237, 226, 0.07), rgba(243, 237, 226, 0.02));
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--paper-100);
}

.page-privacy .legal-p .aux-link,
.page-privacy .legal-list .aux-link {
  color: var(--cyan-400);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.page-privacy .legal-p .aux-link:hover,
.page-privacy .legal-list .aux-link:hover {
  color: var(--orange-500);
}

/* ---------- 联系方式块 ---------- */
.page-privacy .legal-contact {
  max-width: 62ch;
  margin-top: 22px;
  padding: 22px;
  border: 1px solid var(--line-soft);
  background: var(--ink-850);
}

.page-privacy .legal-contact__row {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  gap: 14px;
  padding: 9px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-privacy .legal-contact__row:last-of-type {
  border-bottom: 0;
}

.page-privacy .legal-contact__label {
  font-size: 11.5px;
  letter-spacing: 0.14em;
  line-height: 1.9;
  color: var(--slate-400);
}

.page-privacy .legal-contact__value {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--paper-50);
  word-break: break-word;
}

.page-privacy .legal-contact__note {
  margin: 16px 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--line-soft);
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--slate-400);
}

/* ---------- 章节索引栏 ---------- */
.page-privacy .legal-rail {
  display: none;
}

.page-privacy .legal-rail__label {
  margin: 0 0 12px;
  font-size: 11.5px;
  letter-spacing: 0.18em;
  color: var(--slate-400);
}

.page-privacy .legal-rail__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-privacy .legal-rail__link {
  display: flex;
  gap: 10px;
  padding: 7px 0;
  font-size: 13px;
  line-height: 1.5;
  color: var(--slate-400);
  text-decoration: none;
  transition: color 220ms var(--ease);
}

.page-privacy .legal-rail__link .mono {
  font-size: 11.5px;
  letter-spacing: 0.1em;
}

.page-privacy .legal-rail__link:hover,
.page-privacy .legal-rail__link:focus-visible {
  color: var(--cyan-400);
}

/* ---------- 中等屏幕：编号轴竖线 ---------- */
@media (min-width: 821px) {
  .page-privacy .legal-flow::before {
    content: "";
    position: absolute;
    top: 6px;
    bottom: 6px;
    left: calc(var(--privacy-num-w) + 10px);
    width: 1px;
    background: linear-gradient(180deg, transparent, var(--line-soft) 8%, var(--line-soft) 92%, transparent);
    pointer-events: none;
  }

  .page-privacy .legal-section__body {
    padding-left: calc(var(--privacy-num-w) + var(--privacy-gap));
  }
}

/* ---------- 窄屏：编号移到标题上方 ---------- */
@media (max-width: 820px) {
  .page-privacy .legal-section__summary {
    grid-template-columns: minmax(0, 1fr) 22px;
    gap: 10px;
    padding: 20px 0;
  }

  .page-privacy .legal-section__num {
    grid-column: 1 / -1;
    margin-bottom: 2px;
  }

  .page-privacy .legal-contact {
    padding: 18px;
  }

  .page-privacy .legal-contact__row {
    grid-template-columns: minmax(0, 1fr);
    gap: 2px;
    padding: 11px 0;
  }
}

/* ---------- 宽屏：右侧章节索引 ---------- */
@media (min-width: 1080px) {
  .page-privacy .legal-layout {
    grid-template-columns: minmax(0, 1fr) 200px;
    gap: 56px;
    align-items: start;
  }

  .page-privacy .legal-rail {
    display: block;
    position: sticky;
    top: calc(var(--nav-h) + 28px);
    padding-left: 20px;
    border-left: 1px solid var(--line-soft);
  }
}

/* ---------- 减弱动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-privacy .legal-section__summary::after,
  .page-privacy .legal-rail__link {
    transition: none;
  }
}