/* ===== 个人信息说明页 · page-privacy ===== */
.page-privacy {
  --priv-measure: 34em;
  --priv-sec-space: clamp(38px, 6vw, 68px);
  position: relative;
  background-color: var(--ink);
  color: var(--ice-white);
  padding-bottom: clamp(56px, 9vw, 110px);
}

/* ---------- 面包屑 ---------- */
.page-privacy .breadcrumb {
  padding-top: clamp(16px, 3vw, 26px);
}

/* ---------- 首屏 ---------- */
.page-privacy .priv-hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(30px, 6vw, 66px) clamp(26px, 4vw, 44px);
}

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

.page-privacy .priv-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(127, 212, 255, .07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(127, 212, 255, .07) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, transparent 92%);
  mask-image: linear-gradient(180deg, #000 0%, transparent 92%);
  pointer-events: none;
}

.page-privacy .priv-hero::after {
  content: "";
  position: absolute;
  top: -34%;
  right: -8%;
  width: min(56vw, 560px);
  aspect-ratio: 1 / 1;
  background: linear-gradient(135deg, rgba(43, 245, 208, .18), rgba(24, 74, 122, .10) 55%, transparent 78%);
  transform: rotate(17deg);
  clip-path: polygon(30% 0, 100% 0, 70% 100%, 0 100%);
  pointer-events: none;
}

.page-privacy .priv-hero__title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(28px, 5.6vw, 56px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--ice-white);
  margin: 14px 0 18px;
  max-width: 16em;
}

.page-privacy .priv-hero__lede {
  max-width: var(--priv-measure);
  font-size: clamp(15px, 1.6vw, 16.5px);
  line-height: 1.85;
  color: var(--silver);
  margin: 0 0 clamp(22px, 3vw, 34px);
}

.page-privacy .priv-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 32px;
  margin: 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-privacy .priv-facts__item {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-privacy .priv-facts__num {
  font-size: clamp(17px, 2.2vw, 22px);
  font-weight: 600;
  color: var(--neon);
  letter-spacing: -0.01em;
}

.page-privacy .priv-facts__txt {
  font-size: 13.5px;
  color: var(--silver);
}

/* ---------- 头图 ---------- */
.page-privacy .priv-hero__media {
  position: relative;
  margin: 0 auto clamp(38px, 6vw, 62px);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
  border: 1px solid var(--line);
  background: linear-gradient(140deg, rgba(24, 74, 122, .85), rgba(5, 11, 24, .95));
}

.page-privacy .priv-hero__media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}

/* ---------- 主体两段式 ---------- */
.page-privacy .priv-body {
  position: relative;
}

.page-privacy .priv-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 44px);
  align-items: start;
}

.page-privacy .priv-main {
  min-width: 0;
}

/* ---------- 侧边章节索引 ---------- */
.page-privacy .priv-toc {
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 18px 16px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut-sm)), calc(100% - var(--cut-sm)) 100%, 0 100%);
}

.page-privacy .priv-toc__label {
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ice);
  margin: 0 0 12px;
}

.page-privacy .priv-toc__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
}

.page-privacy .priv-toc__link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--silver);
  text-decoration: none;
  padding: 5px 8px 5px 10px;
  border-left: 2px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-privacy .priv-toc__link:hover,
.page-privacy .priv-toc__link:focus-visible {
  color: var(--mint);
  border-left-color: var(--neon);
  background: rgba(43, 245, 208, .08);
}

.page-privacy .priv-toc__link[data-active="true"] {
  color: var(--neon);
  border-left-color: var(--neon);
  background: rgba(43, 245, 208, .10);
}

/* ---------- 章节 ---------- */
.page-privacy .priv-sec {
  padding-block: var(--priv-sec-space);
  border-top: 1px solid var(--line);
}

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

.page-privacy .priv-sec--last {
  border-bottom: 1px solid var(--line);
}

.page-privacy .priv-sec__head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 10px;
}

.page-privacy .priv-sec__num {
  flex: none;
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--neon);
}

.page-privacy .priv-sec__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(20px, 2.8vw, 28px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--ice-white);
  margin: 0;
}

.page-privacy .priv-sec__rule {
  display: block;
  width: 62px;
  height: 4px;
  margin-bottom: 22px;
  background: linear-gradient(90deg, var(--ice) 0%, rgba(127, 212, 255, 0) 100%);
}

.page-privacy .priv-sec p {
  max-width: var(--priv-measure);
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ice-white);
  margin: 0 0 16px;
}

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

/* ---------- 信息分类卡 ---------- */
.page-privacy .priv-cards {
  display: grid;
  gap: 14px;
  margin: 22px 0 8px;
}

.page-privacy .priv-item {
  position: relative;
  padding: 18px 20px 18px 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut-sm)), calc(100% - var(--cut-sm)) 100%, 0 100%);
  transition: border-color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-privacy .priv-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--neon), var(--ice-deep));
}

.page-privacy .priv-item:hover {
  border-color: var(--line-strong);
  background: rgba(24, 74, 122, .72);
}

.page-privacy .priv-item__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16.5px;
  color: var(--ice-white);
  margin: 0 0 8px;
}

.page-privacy .priv-item__lede {
  font-size: 14px !important;
  line-height: 1.7 !important;
  color: var(--silver) !important;
  margin: 0 0 12px !important;
}

/* ---------- 列表 ---------- */
.page-privacy .priv-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-privacy .priv-list li {
  position: relative;
  padding-left: 16px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--silver);
  margin-bottom: 7px;
}

.page-privacy .priv-list li:last-child {
  margin-bottom: 0;
}

.page-privacy .priv-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 7px;
  height: 7px;
  background: var(--neon);
  clip-path: polygon(0 0, 100% 0, 100% 100%);
}

.page-privacy .priv-list li strong {
  color: var(--ice-white);
  font-weight: 600;
}

.page-privacy .priv-list--roomy {
  margin: 20px 0 8px;
  max-width: var(--priv-measure);
}

.page-privacy .priv-list--roomy li {
  font-size: 15px;
  margin-bottom: 14px;
}

/* ---------- 使用目的条目 ---------- */
.page-privacy .priv-purpose {
  list-style: none;
  margin: 22px 0 8px;
  padding: 0;
  max-width: var(--priv-measure);
}

.page-privacy .priv-purpose__row {
  display: grid;
  gap: 6px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.page-privacy .priv-purpose__row:first-child {
  border-top: 1px solid var(--line);
}

.page-privacy .priv-purpose__tag {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--neon);
}

.page-privacy .priv-purpose__txt {
  font-size: 15px !important;
  line-height: 1.78 !important;
  color: var(--ice-white) !important;
  margin: 0 !important;
  max-width: none !important;
}

/* ---------- 保存期限表 ---------- */
.page-privacy .priv-terms {
  list-style: none;
  margin: 22px 0 8px;
  padding: 0;
  max-width: var(--priv-measure);
}

.page-privacy .priv-terms__row {
  display: grid;
  gap: 6px;
  padding: 15px 0;
  border-top: 1px solid var(--line);
}

.page-privacy .priv-terms__row:last-child {
  border-bottom: 1px solid var(--line);
}

.page-privacy .priv-terms__k {
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--ice);
}

.page-privacy .priv-terms__v {
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--silver);
}

/* ---------- 折叠说明 ---------- */
.page-privacy .priv-fold {
  margin-top: 22px;
  max-width: var(--priv-measure);
  border: 1px solid var(--line);
  border-left: 3px solid var(--ice-deep);
  background: rgba(24, 74, 122, .30);
  transition: border-color var(--dur) var(--ease);
}

.page-privacy .priv-fold[open] {
  border-left-color: var(--neon);
}

.page-privacy .priv-fold > summary {
  position: relative;
  cursor: pointer;
  list-style: none;
  padding: 14px 46px 14px 18px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14.5px;
  line-height: 1.55;
  color: var(--ice-white);
}

.page-privacy .priv-fold > summary::-webkit-details-marker {
  display: none;
}

.page-privacy .priv-fold > summary::after {
  content: "+";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 17px;
  color: var(--neon);
}

.page-privacy .priv-fold[open] > summary::after {
  content: "−";
}

.page-privacy .priv-fold > summary:hover {
  color: var(--mint);
}

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

.page-privacy .priv-fold__body p {
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--silver);
  margin: 0;
  max-width: none;
}

/* ---------- 权利步骤 ---------- */
.page-privacy .priv-steps {
  counter-reset: priv-step;
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  max-width: var(--priv-measure);
}

.page-privacy .priv-step {
  counter-increment: priv-step;
  position: relative;
  margin-left: 15px;
  padding: 2px 0 22px 34px;
  border-left: 1px solid var(--line);
}

.page-privacy .priv-step:last-child {
  padding-bottom: 4px;
  border-left-color: transparent;
}

.page-privacy .priv-step::before {
  content: counter(priv-step, decimal-leading-zero);
  position: absolute;
  left: -15px;
  top: 0;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  background: var(--void);
  border: 1px solid var(--line-strong);
  color: var(--neon);
  font-family: var(--font-mono);
  font-size: 11px;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 9px), calc(100% - 9px) 100%, 0 100%);
}

.page-privacy .priv-step__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15.5px;
  color: var(--ice-white);
  margin: 4px 0 6px;
}

.page-privacy .priv-step p {
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--silver);
  margin: 0;
}

/* ---------- 渠道提示 ---------- */
.page-privacy .priv-channel {
  position: relative;
  margin-top: 26px;
  max-width: var(--priv-measure);
  padding: 20px 22px;
  background: linear-gradient(120deg, rgba(255, 122, 47, .14), rgba(24, 74, 122, .35));
  border: 1px solid rgba(255, 122, 47, .38);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%);
  transition: border-color var(--dur) var(--ease);
}

.page-privacy .priv-channel:hover {
  border-color: var(--amber-hi);
}

.page-privacy .priv-channel__label {
  font-size: 11.5px;
  letter-spacing: .12em;
  color: var(--amber);
  margin: 0 0 8px;
}

.page-privacy .priv-channel__line {
  font-size: 14.5px;
  line-height: 1.82;
  color: var(--ice-white);
  margin: 0;
  max-width: none;
}

.page-privacy .priv-channel__mail {
  color: var(--amber-hi);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 144, 87, .55);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-privacy .priv-channel__mail:hover,
.page-privacy .priv-channel__mail:focus-visible {
  color: var(--mint);
  border-bottom-color: var(--mint);
}

/* ---------- 相关链接段落 ---------- */
.page-privacy .priv-sec--last .link-arrow {
  color: var(--neon);
}

/* ---------- 焦点可见性 ---------- */
.page-privacy .priv-toc__link:focus-visible,
.page-privacy .priv-channel__mail:focus-visible,
.page-privacy .priv-fold > summary:focus-visible {
  outline: 2px solid var(--neon);
  outline-offset: 2px;
}

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

  .page-privacy .priv-cards .priv-item:first-child {
    grid-column: 1 / -1;
  }

  .page-privacy .priv-terms__row {
    grid-template-columns: 8.5em minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }

  .page-privacy .priv-purpose__row {
    grid-template-columns: 4.5em minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }
}

/* ---------- 桌面端：左侧索引吸附 ---------- */
@media (min-width: 900px) {
  .page-privacy .priv-grid {
    grid-template-columns: 186px minmax(0, var(--priv-measure));
    gap: clamp(48px, 6vw, 84px);
  }

  .page-privacy .priv-toc {
    position: sticky;
    top: 108px;
  }

  .page-privacy .priv-toc__list {
    flex-direction: column;
    flex-wrap: nowrap;
    gap: 2px;
  }

  .page-privacy .priv-toc__link {
    display: block;
    width: 100%;
  }
}

@media (min-width: 1080px) {
  .page-privacy .priv-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-privacy .priv-cards .priv-item:first-child {
    grid-column: auto;
  }
}

/* ---------- 动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-privacy .priv-toc__link,
  .page-privacy .priv-item,
  .page-privacy .priv-fold,
  .page-privacy .priv-channel,
  .page-privacy .priv-channel__mail {
    transition: none;
  }
}