/* ===========================================================
   数据保护页 · page-privacy
   条款式排版：等宽条款号 / 表格化阅读秩序 / 慢节奏收敛
   =========================================================== */

.page-privacy {
  --pw-rail-h: 26px;
  --pw-num-col: 88px;
  --pw-num-gap: 32px;
  background: var(--ink-900);
  overflow-x: hidden;
}

/* ---------- 首屏：标题块 + 分层视觉 ---------- */

.page-privacy .privacy-hero {
  position: relative;
  padding: clamp(40px, 8vw, 76px) 0 clamp(20px, 4vw, 36px);
  overflow: hidden;
}

.page-privacy .privacy-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--line-400) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line-400) 1px, transparent 1px);
  background-size: 80px 80px, 80px 80px;
  opacity: .34;
  -webkit-mask-image: radial-gradient(120% 92% at 18% 8%, #000 0%, transparent 74%);
  mask-image: radial-gradient(120% 92% at 18% 8%, #000 0%, transparent 74%);
}

.page-privacy .privacy-hero::after {
  content: "";
  position: absolute;
  right: -14%;
  top: -32%;
  width: 64%;
  height: 138%;
  z-index: 0;
  pointer-events: none;
  background: radial-gradient(closest-side, rgba(255, 106, 43, .13), transparent 74%);
}

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

.page-privacy .privacy-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
}

.page-privacy .privacy-hero__lead .breadcrumb {
  margin: 0 0 clamp(20px, 4vw, 32px);
  font-family: var(--mono);
  font-size: var(--f-2xs);
  letter-spacing: .1em;
  color: var(--text-muted);
}

.page-privacy .privacy-hero__lead .breadcrumb a {
  color: var(--text-muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-privacy .privacy-hero__lead .breadcrumb a:hover,
.page-privacy .privacy-hero__lead .breadcrumb a:focus-visible {
  color: var(--gold-400);
  border-bottom-color: var(--gold-600);
}

.page-privacy .privacy-hero__eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 16px;
  font-family: var(--mono);
  font-size: var(--f-xs);
  letter-spacing: .2em;
  color: var(--gold-400);
}

.page-privacy .privacy-hero__eyebrow::before {
  content: "";
  width: 30px;
  height: 2px;
  background: var(--vermilion-500);
  transform: skewX(-12deg);
}

.page-privacy .privacy-hero h1 {
  margin: 0;
  font-family: var(--sans);
  font-weight: 900;
  font-size: var(--f-3xl);
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--text-primary);
}

.page-privacy .privacy-hero__intro {
  margin: 22px 0 0;
  max-width: 34ch;
  font-family: var(--serif);
  font-weight: 500;
  font-size: var(--f-md);
  line-height: 1.7;
  color: var(--text-primary);
}

.page-privacy .privacy-hero__meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
  gap: 18px 22px;
  margin: clamp(28px, 5vw, 40px) 0 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--line-400);
  list-style: none;
}

.page-privacy .privacy-hero__meta li {
  display: flex;
  flex-direction: column;
  gap: 5px;
  min-width: 0;
}

.page-privacy .privacy-hero__meta-val {
  font-size: var(--f-md);
  line-height: 1.2;
  color: var(--gold-400);
}

.page-privacy .privacy-hero__meta-key {
  font-size: var(--f-xs);
  letter-spacing: .08em;
  color: var(--text-muted);
}

.page-privacy .privacy-hero__figure {
  position: relative;
  margin: 0;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--ink-800);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-privacy .privacy-hero__figure img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
  opacity: .92;
}

.page-privacy .privacy-hero__figure::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  box-shadow: inset 0 0 0 1px rgba(36, 64, 95, .9);
}

.page-privacy .privacy-hero__figure::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  z-index: 3;
  width: 72px;
  height: 2px;
  background: linear-gradient(90deg, var(--vermilion-500), var(--gold-400));
}

/* ---------- 横向刻度线：条款分组参照 ---------- */

.page-privacy .privacy-scale {
  padding: 10px 0 0;
}

.page-privacy .privacy-scale__rail {
  position: relative;
  height: var(--pw-rail-h);
  border-bottom: 1px solid var(--line-400);
}

.page-privacy .privacy-scale__rail::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 8px;
  background-image: repeating-linear-gradient(to right, var(--slate-600) 0 1px, transparent 1px 16px);
}

.page-privacy .privacy-scale__rail::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 15px;
  background-image: repeating-linear-gradient(to right, var(--gold-600) 0 1px, transparent 1px 112px);
}

/* ---------- 条款目录 ---------- */

.page-privacy .privacy-toc {
  padding: 18px 0 0;
}

.page-privacy .privacy-toc__list {
  display: flex;
  gap: 8px;
  margin: 0;
  padding: 2px 2px 12px;
  list-style: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

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

.page-privacy .privacy-toc__item {
  flex: 0 0 auto;
}

.page-privacy .privacy-toc__link {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 9px 15px;
  font-size: var(--f-xs);
  letter-spacing: .06em;
  color: var(--text-muted);
  text-decoration: none;
  background: var(--ink-800);
  border: 1px solid var(--line-400);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 9px), calc(100% - 9px) 100%, 0 100%);
  transition: color .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}

.page-privacy .privacy-toc__link .mono {
  font-size: var(--f-2xs);
  letter-spacing: .1em;
  color: var(--gold-400);
}

.page-privacy .privacy-toc__link:hover,
.page-privacy .privacy-toc__link:focus-visible {
  color: var(--text-primary);
  background: var(--ink-950);
  border-color: var(--vermilion-500);
}

/* ---------- 条款正文 ---------- */

.page-privacy .privacy-clauses {
  padding: clamp(6px, 2vw, 14px) 0 clamp(36px, 7vw, 68px);
}

.page-privacy .clause {
  display: block;
  border-top: 1px solid var(--line-400);
  padding: clamp(26px, 4.5vw, 42px) 0;
  scroll-margin-top: 120px;
}

.page-privacy .clause__summary {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) auto;
  gap: 0 16px;
  align-items: baseline;
  cursor: pointer;
  list-style: none;
}

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

.page-privacy .clause__summary::marker {
  content: "";
}

.page-privacy .clause__summary::after {
  content: "+";
  grid-column: 3;
  font-family: var(--mono);
  font-size: var(--f-md);
  line-height: 1;
  color: var(--slate-600);
  transition: color .2s var(--ease);
}

.page-privacy .clause[open] > .clause__summary::after {
  content: "–";
  color: var(--gold-600);
}

.page-privacy .clause__summary:hover .clause__title,
.page-privacy .clause__summary:focus-visible .clause__title {
  color: var(--vermilion-500);
}

.page-privacy .clause__num {
  font-family: var(--mono);
  font-size: var(--f-md);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: .04em;
  color: var(--gold-400);
}

.page-privacy .clause__title {
  margin: 0;
  font-family: var(--sans);
  font-weight: 700;
  font-size: var(--f-lg);
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--text-primary);
  transition: color .2s var(--ease);
}

.page-privacy .clause:target {
  border-top-color: var(--vermilion-500);
}

.page-privacy .clause:target .clause__num {
  color: var(--vermilion-500);
}

.page-privacy .clause__body {
  margin-top: 18px;
  max-width: 800px;
}

.page-privacy .clause__body > p {
  margin: 0 0 14px;
  font-size: var(--f-sm);
  line-height: 1.85;
  color: var(--text-primary);
}

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

.page-privacy .mark {
  color: var(--text-muted);
  border-bottom: 1px solid var(--line-400);
  padding-bottom: 1px;
}

.page-privacy .privacy-mail {
  word-break: break-all;
  color: var(--gold-400);
  letter-spacing: .02em;
}

/* ---------- 场景三分块 ---------- */

.page-privacy .clause__scenes {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin: 20px 0 18px;
  background: var(--line-400);
  border: 1px solid var(--line-400);
}

.page-privacy .scene {
  position: relative;
  padding: 22px 18px 24px;
  background: var(--ink-900);
}

.page-privacy .scene::before {
  content: "";
  position: absolute;
  left: 18px;
  top: 0;
  width: 34px;
  height: 2px;
  background: var(--vermilion-500);
  transform: skewX(-12deg);
  transform-origin: left center;
}

.page-privacy .scene__title {
  display: flex;
  align-items: baseline;
  gap: 9px;
  margin: 10px 0 8px;
  font-size: var(--f-sm);
  font-weight: 700;
  letter-spacing: .03em;
  color: var(--text-primary);
}

.page-privacy .scene__title .mono {
  font-size: var(--f-2xs);
  letter-spacing: .12em;
  color: var(--gold-400);
}

.page-privacy .scene p {
  margin: 0;
  font-size: var(--f-xs);
  line-height: 1.8;
  color: var(--text-muted);
}

/* ---------- 键值行：期限表与权利表 ---------- */

.page-privacy .clause__rows {
  list-style: none;
  margin: 20px 0 18px;
  padding: 0;
  border-top: 1px solid var(--line-400);
}

.page-privacy .clause__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 5px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line-400);
}

.page-privacy .clause__row-key {
  font-size: var(--f-xs);
  font-weight: 500;
  letter-spacing: .08em;
  color: var(--text-muted);
}

.page-privacy .clause__row-val {
  font-size: var(--f-sm);
  line-height: 1.75;
  color: var(--text-primary);
}

.page-privacy .clause__row-val .mono {
  font-size: var(--f-sm);
  letter-spacing: .02em;
  color: var(--gold-400);
}

/* ---------- 收尾：说明与相关入口 ---------- */

.page-privacy .privacy-foot {
  position: relative;
  padding: clamp(34px, 6vw, 58px) 0 clamp(56px, 9vw, 96px);
  border-top: 1px solid var(--line-400);
}

.page-privacy .privacy-foot::before {
  content: "";
  display: block;
  width: 68px;
  height: 2px;
  margin: 0 0 28px;
  background: linear-gradient(90deg, var(--vermilion-500), var(--gold-400));
  transform: skewX(-12deg);
  transform-origin: left center;
}

.page-privacy .privacy-foot__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

.page-privacy .privacy-foot__text {
  margin: 0;
  max-width: 58ch;
  font-size: var(--f-sm);
  line-height: 1.85;
  color: var(--text-muted);
}

.page-privacy .privacy-foot__stamp {
  margin: 18px 0 0;
  font-size: var(--f-2xs);
  letter-spacing: .1em;
  color: var(--slate-600);
}

.page-privacy .privacy-foot__nav {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-400);
}

.page-privacy .privacy-foot__nav li {
  border-bottom: 1px solid var(--line-400);
}

.page-privacy .privacy-foot__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 16px 0;
  text-decoration: none;
}

.page-privacy .privacy-foot__link-text {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.page-privacy .privacy-foot__link-label {
  font-size: var(--f-sm);
  font-weight: 700;
  letter-spacing: .02em;
  color: var(--text-primary);
  transition: color .2s var(--ease);
}

.page-privacy .privacy-foot__link-desc {
  font-size: var(--f-xs);
  line-height: 1.6;
  color: var(--text-muted);
}

.page-privacy .privacy-foot__link-go {
  flex: 0 0 auto;
  font-family: var(--mono);
  font-size: var(--f-sm);
  color: var(--gold-400);
  transition: transform .2s var(--ease), color .2s var(--ease);
}

.page-privacy .privacy-foot__link:hover .privacy-foot__link-label,
.page-privacy .privacy-foot__link:focus-visible .privacy-foot__link-label {
  color: var(--vermilion-500);
}

.page-privacy .privacy-foot__link:hover .privacy-foot__link-go,
.page-privacy .privacy-foot__link:focus-visible .privacy-foot__link-go {
  transform: translateX(4px);
  color: var(--gold-400);
}

/* ---------- 窄屏保护 ---------- */

@media (max-width: 400px) {
  .page-privacy .privacy-hero__meta {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-privacy .clause__summary {
    grid-template-columns: 34px minmax(0, 1fr) auto;
    gap: 0 12px;
  }
}

/* ---------- 中屏：场景并排 ---------- */

@media (min-width: 640px) {
  .page-privacy .privacy-hero__figure {
    aspect-ratio: 4 / 3;
  }

  .page-privacy .clause__row {
    grid-template-columns: minmax(112px, 168px) minmax(0, 1fr);
    gap: 24px;
    align-items: baseline;
  }
}

@media (min-width: 780px) {
  .page-privacy .clause__scenes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 桌面：左栏条款号 + 右侧正文 ---------- */

@media (min-width: 900px) {
  .page-privacy .privacy-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
    gap: 56px;
    align-items: end;
  }

  .page-privacy .clause__summary {
    grid-template-columns: var(--pw-num-col) minmax(0, 1fr) auto;
    gap: 0 var(--pw-num-gap);
  }

  .page-privacy .clause__body {
    padding-left: calc(var(--pw-num-col) + var(--pw-num-gap));
  }

  .page-privacy .privacy-foot__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 56px;
    align-items: start;
  }
}

/* ---------- 动效兼容 ---------- */

@media (prefers-reduced-motion: reduce) {
  .page-privacy .privacy-toc__link,
  .page-privacy .clause__title,
  .page-privacy .privacy-foot__link-label,
  .page-privacy .privacy-foot__link-go {
    transition: none;
  }

  .page-privacy .privacy-foot__link:hover .privacy-foot__link-go,
  .page-privacy .privacy-foot__link:focus-visible .privacy-foot__link-go {
    transform: none;
  }
}