.page-privacy {
  --privacy-measure: 68ch;
  --privacy-rail-w: 208px;
  position: relative;
  color: var(--white);
  padding: clamp(24px, 4vw, 56px) 0 clamp(56px, 9vw, 112px);
  overflow-x: clip;
}

.page-privacy::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 120px 120px;
  opacity: 0.16;
  pointer-events: none;
  z-index: 0;
  -webkit-mask-image: radial-gradient(ellipse at 24% 0%, #000 0%, transparent 64%);
  mask-image: radial-gradient(ellipse at 24% 0%, #000 0%, transparent 64%);
}

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

/* ---------- 首屏 ---------- */
.page-privacy .privacy-hero {
  max-width: 940px;
  margin-top: clamp(18px, 3vw, 34px);
}

.page-privacy .privacy-hero__title {
  margin: 0.22em 0 0.5em;
  font-size: clamp(34px, 5.6vw, 68px);
  line-height: 1.06;
  letter-spacing: -0.02em;
  font-weight: 800;
  max-width: 17ch;
}

.page-privacy .privacy-hero__lead {
  margin: 0;
  max-width: 58ch;
  font-size: clamp(16px, 1.35vw, 19px);
  line-height: 1.85;
  color: var(--mist);
}

.page-privacy .privacy-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

.page-privacy .privacy-hero__meta li {
  display: inline-flex;
  align-items: center;
  gap: 9px;
}

.page-privacy .privacy-hero__meta li::before {
  content: "";
  flex: none;
  width: 14px;
  height: 1px;
  background: var(--neon);
  opacity: 0.85;
}

/* ---------- 顶部横幅 ---------- */
.page-privacy .privacy-banner {
  position: relative;
  margin: clamp(28px, 4.5vw, 52px) 0 clamp(34px, 5vw, 66px);
  border: 1px solid var(--line);
  background: var(--panel);
  overflow: hidden;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 34px), calc(100% - 56px) 100%, 0 100%);
}

.page-privacy .privacy-banner img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 2 / 1;
  object-fit: cover;
  opacity: 0.82;
}

.page-privacy .privacy-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(5, 7, 10, 0) 38%, rgba(5, 7, 10, 0.78) 100%),
    linear-gradient(90deg, rgba(5, 7, 10, 0.6) 0%, rgba(5, 7, 10, 0) 62%);
}

.page-privacy .privacy-banner__tag {
  position: absolute;
  left: clamp(14px, 2.4vw, 26px);
  bottom: clamp(22px, 3.4vw, 34px);
  z-index: 2;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--neon);
}

/* ---------- 正文骨架 ---------- */
.page-privacy .privacy-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 40px);
}

.page-privacy .privacy-column {
  max-width: var(--privacy-measure);
  min-width: 0;
}

/* ---------- 左侧小节刻度 ---------- */
.page-privacy .privacy-rail__list {
  display: flex;
  gap: 8px;
  list-style: none;
  margin: 14px 0 0;
  padding: 0 0 6px;
  overflow-x: auto;
  scrollbar-width: none;
}

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

.page-privacy .privacy-rail__link {
  display: block;
  white-space: nowrap;
  padding: 8px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--mist);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  transition: color 0.22s ease, border-color 0.22s ease, background 0.22s ease;
}

.page-privacy .privacy-rail__link:hover,
.page-privacy .privacy-rail__link:focus-visible {
  color: var(--white);
  border-color: var(--neon);
}

/* ---------- 章节 ---------- */
.page-privacy .privacy-section {
  position: relative;
  margin-top: clamp(26px, 4vw, 46px);
  padding-top: clamp(24px, 4vw, 42px);
  border-top: 1px solid var(--line);
  scroll-margin-top: calc(var(--rail-h) + 28px);
}

.page-privacy .privacy-column > .privacy-section:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.page-privacy .privacy-section__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: clamp(16px, 2.4vw, 24px);
}

.page-privacy .privacy-section__num {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--mist);
  transition: color 0.3s ease;
}

.page-privacy .privacy-section.is-current .privacy-section__num {
  color: var(--neon);
}

.page-privacy .privacy-section__title {
  flex: 1 1 auto;
  margin: 0;
  font-size: clamp(21px, 2.5vw, 31px);
  line-height: 1.24;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-privacy .observe-mark {
  flex: none;
  align-self: center;
  width: 8px;
  height: 8px;
  background: var(--line);
  transform: rotate(45deg);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.page-privacy .privacy-section.is-current .observe-mark {
  background: var(--neon);
  box-shadow: 0 0 12px rgba(200, 255, 61, 0.5);
}

.page-privacy .privacy-section p {
  margin: 0 0 16px;
  font-size: clamp(15px, 1.05vw, 16px);
  line-height: 1.85;
  color: var(--white);
  opacity: 0.86;
}

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

.page-privacy .privacy-section a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 169, 255, 0.42);
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-privacy .privacy-section a:hover,
.page-privacy .privacy-section a:focus-visible {
  color: var(--white);
  border-bottom-color: var(--neon);
}

/* ---------- 条款块 ---------- */
.page-privacy .privacy-clause {
  padding: 14px 16px;
  margin: 0 0 12px;
  border-left: 2px solid var(--line);
  border-radius: 0 10px 10px 0;
  background: var(--panel);
  transition: border-color 0.25s ease, background 0.25s ease;
}

.page-privacy .privacy-clause:hover {
  border-left-color: var(--neon-dim);
  background: var(--panel-2);
}

.page-privacy .privacy-clause__key {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--blue);
}

.page-privacy .privacy-clause__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

.page-privacy .privacy-clause__text a {
  color: var(--blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(63, 169, 255, 0.42);
}

/* ---------- 悬浮释义 ---------- */
.page-privacy .term {
  position: relative;
  color: var(--white);
  border-bottom: 1px dashed var(--blue);
  cursor: help;
}

.page-privacy .term::after {
  content: attr(data-tip);
  position: absolute;
  left: 0;
  bottom: calc(100% + 8px);
  width: max-content;
  max-width: 230px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-2);
  color: var(--white);
  font-family: var(--font-sans);
  font-size: 12px;
  line-height: 1.6;
  letter-spacing: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
  z-index: 6;
}

.page-privacy .term:hover::after,
.page-privacy .term:focus-visible::after {
  opacity: 1;
  visibility: visible;
}

/* ---------- 视觉停顿 ---------- */
.page-privacy .privacy-pause {
  position: relative;
  margin: clamp(36px, 6vw, 72px) 0;
  padding: clamp(24px, 3.6vw, 42px) clamp(18px, 3vw, 36px);
  border-left: 3px solid var(--neon);
  background: linear-gradient(118deg, rgba(200, 255, 61, 0.09), rgba(63, 169, 255, 0.05) 58%, transparent 100%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 40px) 100%, 0 100%);
}

.page-privacy .privacy-pause__text {
  margin: 0 0 clamp(18px, 2.6vw, 26px);
  max-width: 26ch;
  font-size: clamp(19px, 2.1vw, 26px);
  line-height: 1.5;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.page-privacy .privacy-pause__trace {
  display: block;
  width: 100%;
  height: 40px;
}

.page-privacy .privacy-pause__trace path {
  stroke: var(--neon);
  opacity: 0.75;
}

/* ---------- 联系信息 ---------- */
.page-privacy .privacy-contact-list {
  list-style: none;
  margin: 18px 0 20px;
  padding: 0;
  display: grid;
  gap: 10px;
  font-size: 15px;
}

.page-privacy .privacy-contact-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 14px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--line);
  color: var(--white);
}

.page-privacy .privacy-contact-list__k {
  flex: none;
  min-width: 78px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist);
}

/* ---------- 桌面端 ---------- */
@media (min-width: 900px) {
  .page-privacy .privacy-body {
    grid-template-columns: var(--privacy-rail-w) minmax(0, 1fr);
    gap: clamp(36px, 5vw, 76px);
  }

  .page-privacy .privacy-rail {
    position: sticky;
    top: calc(var(--rail-h) + 30px);
    align-self: start;
  }

  .page-privacy .privacy-rail__list {
    flex-direction: column;
    gap: 0;
    padding: 0;
    overflow: visible;
  }

  .page-privacy .privacy-rail__link {
    padding: 10px 0 10px 14px;
    border: 0;
    border-left: 2px solid var(--line);
    border-radius: 0;
    white-space: normal;
    letter-spacing: 0.06em;
  }

  .page-privacy .privacy-rail__link:hover,
  .page-privacy .privacy-rail__link:focus-visible {
    border-left-color: var(--neon);
    color: var(--white);
  }
}

@media (min-width: 1200px) {
  .page-privacy {
    --privacy-rail-w: 232px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-rail__link,
  .page-privacy .privacy-clause,
  .page-privacy .privacy-section__num,
  .page-privacy .observe-mark,
  .page-privacy .term::after {
    transition: none;
  }
}