/* ==========================================
   Privacy · 隐私政策页面专属样式
   作用域：.page-privacy
   ========================================== */
.page-privacy {
  --privacy-width: 980px;
  --privacy-hero-width: 1120px;
  --privacy-title-size: clamp(2.9rem, 9vw, 5.6rem);
  --privacy-index-size: clamp(4rem, 13vw, 6.8rem);
  --privacy-gap: clamp(3.2rem, 7vw, 5.2rem);
  position: relative;
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.8;
  scroll-behavior: smooth;
  scroll-margin-top: calc(var(--header-main-height) + var(--region-bar-height));
}

/* ---------- 首屏 ---------- */
.page-privacy__hero {
  position: relative;
  overflow: hidden;
  padding: 3.4rem var(--spacing-lg) 4rem;
  background-color: var(--color-bg-deep);
  background-image:
    linear-gradient(rgba(0, 255, 136, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 136, 0.04) 1px, transparent 1px),
    radial-gradient(ellipse 62% 50% at 16% 0%, var(--color-glow) 0%, transparent 68%);
  background-size: 26px 26px, 26px 26px, 100% 100%;
  background-repeat: repeat, repeat, no-repeat;
}

.page-privacy__hero::before {
  content: "";
  position: absolute;
  top: -30%;
  right: -14%;
  width: 48%;
  height: 160%;
  clip-path: polygon(34% 0, 100% 0, 78% 100%, 4% 100%);
  background: linear-gradient(155deg, rgba(138, 43, 226, 0.22) 0%, rgba(138, 43, 226, 0.06) 36%, rgba(0, 255, 136, 0.1) 72%, transparent 100%);
  pointer-events: none;
}

.page-privacy__container {
  position: relative;
  z-index: 1;
  width: min(calc(100% - var(--spacing-lg) * 2), var(--privacy-hero-width));
  margin-inline: auto;
}

.page-privacy .breadcrumb {
  margin-bottom: 2.4rem;
}

.page-privacy__kicker {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin: 0 0 var(--spacing-md);
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.page-privacy__kicker::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-green);
  box-shadow: 0 0 12px var(--color-green);
}

.page-privacy__title {
  margin: 0 0 var(--spacing-lg);
  font-family: var(--font-display);
  font-size: var(--privacy-title-size);
  font-weight: 300;
  line-height: 1.04;
  letter-spacing: 0.02em;
  color: var(--color-white);
  text-shadow: 0 0 40px rgba(0, 255, 136, 0.22);
}

.page-privacy__lead {
  max-width: 58ch;
  margin: 0 0 var(--spacing-xl);
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--color-metal);
}

.page-privacy__hero-media {
  margin: 0;
  max-width: 800px;
  padding: var(--spacing-md);
  border: 1px solid rgba(0, 255, 136, 0.16);
  border-radius: var(--radius-lg);
  background: linear-gradient(150deg, rgba(42, 27, 61, 0.55), rgba(11, 11, 26, 0.85));
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.36);
}

.page-privacy__hero-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-md);
}

.page-privacy__hero-caption {
  margin-top: var(--spacing-sm);
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.page-privacy__body {
  width: min(calc(100% - var(--spacing-lg) * 2), var(--privacy-width));
  margin-inline: auto;
  padding-bottom: var(--spacing-3xl);
}

/* ---------- 条款目录 ---------- */
.page-privacy__toc {
  margin: var(--spacing-2xl) 0 var(--spacing-lg);
  padding: var(--spacing-lg);
  border: 1px solid rgba(122, 122, 138, 0.24);
  border-left: 3px solid var(--color-green);
  border-radius: var(--radius-md);
  background: rgba(22, 22, 34, 0.72);
  scroll-margin-top: calc(var(--header-main-height) + var(--region-bar-height) + var(--spacing-md));
}

.page-privacy__toc-label {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin: 0 0 var(--spacing-md);
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.page-privacy__toc-label::before {
  content: "";
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-green);
  box-shadow: 0 0 10px var(--color-green);
}

.page-privacy__toc-list {
  display: grid;
  gap: var(--spacing-xs);
}

.page-privacy__toc-link {
  display: flex;
  align-items: baseline;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) 0;
  border-bottom: 1px dashed rgba(122, 122, 138, 0.24);
  font-size: 0.95rem;
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--transition-fast), padding-left var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast);
}

.page-privacy__toc-link:last-child {
  border-bottom: 0;
}

.page-privacy__toc-link:hover {
  padding-left: var(--spacing-sm);
  color: var(--color-green);
}

.page-privacy__toc-num {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-green);
}

/* ---------- 条款章节 ---------- */
.page-privacy__section {
  position: relative;
  margin-top: var(--spacing-2xl);
  padding-top: var(--spacing-2xl);
  border-top: 1px solid rgba(122, 122, 138, 0.18);
  scroll-margin-top: calc(var(--header-main-height) + var(--region-bar-height) + var(--spacing-md));
}

.page-privacy__section::before {
  content: "";
  position: absolute;
  top: -2px;
  left: 0;
  width: 132px;
  height: 3px;
  border-radius: var(--radius-pill);
  background: linear-gradient(90deg, var(--color-green), var(--color-purple));
  box-shadow: 0 0 18px rgba(0, 255, 136, 0.32);
}

.page-privacy__section:first-of-type {
  margin-top: var(--spacing-xl);
}

.page-privacy__section:nth-of-type(even) {
  background: radial-gradient(ellipse 90% 60% at 92% 8%, rgba(138, 43, 226, 0.08), transparent 64%);
}

.page-privacy__section-index {
  display: block;
  margin-bottom: var(--spacing-md);
  font-family: var(--font-display);
  font-size: var(--privacy-index-size);
  font-weight: 800;
  line-height: 0.9;
  letter-spacing: -0.03em;
  color: rgba(0, 255, 136, 0.06);
  -webkit-text-stroke: 1px rgba(0, 255, 136, 0.5);
  text-shadow: 0 0 32px rgba(0, 255, 136, 0.08);
  user-select: none;
}

.page-privacy__section-heading {
  position: relative;
  z-index: 1;
  margin-bottom: var(--spacing-xl);
}

.page-privacy__section-title {
  margin: 0 0 var(--spacing-sm);
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 5vw, 2.4rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.01em;
  color: var(--color-white);
}

.page-privacy__section-title::after {
  content: "";
  display: block;
  width: 42px;
  height: 3px;
  margin-top: var(--spacing-sm);
  border-radius: var(--radius-pill);
  background: var(--color-green);
}

.page-privacy__section-lead {
  margin: 0;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--color-muted);
}

.page-privacy__section-lead strong,
.page-privacy__item-text strong {
  color: var(--color-green);
  font-weight: 600;
}

.page-privacy__section-body {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--spacing-lg);
}

.page-privacy__item {
  position: relative;
  padding: var(--spacing-lg);
  border: 1px solid rgba(122, 122, 138, 0.16);
  border-radius: var(--radius-md);
  background:
    radial-gradient(circle at 0% 0%, rgba(138, 43, 226, 0.14), transparent 42%),
    linear-gradient(135deg, rgba(22, 22, 34, 0.92), rgba(11, 11, 26, 0.78));
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.18);
}

.page-privacy__item-title {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin: 0 0 var(--spacing-sm);
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--color-white);
}

.page-privacy__item-title::before {
  content: "";
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  transform: rotate(45deg);
  border-radius: 2px;
  background: var(--color-green);
  box-shadow: 0 0 10px rgba(0, 255, 136, 0.5);
}

.page-privacy__item-text {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.9;
  color: var(--color-metal);
}

/* ---------- 联系卡片 ---------- */
.page-privacy__section-body--contact {
  display: block;
}

.page-privacy__contact-grid {
  display: grid;
  gap: var(--spacing-md);
}

.page-privacy__contact-card {
  padding: var(--spacing-lg);
  border: 1px solid rgba(0, 255, 136, 0.2);
  border-radius: var(--radius-md);
  background: var(--color-card);
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.16);
}

.page-privacy__contact-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.page-privacy__contact-value {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  font-weight: 600;
  line-height: 1.6;
  color: var(--color-green);
  word-break: break-all;
}

.page-privacy__contact-note {
  margin-top: var(--spacing-lg);
  padding: var(--spacing-xs) var(--spacing-md);
  border-left: 2px solid var(--color-purple);
  font-size: 0.92rem;
  color: var(--color-muted);
}

.page-privacy__contact-note a,
.page-privacy__note a {
  color: var(--color-green);
  text-decoration: none;
}

.page-privacy__contact-note a:hover,
.page-privacy__note a:hover {
  text-decoration: underline;
}

/* ---------- 适用范围说明 ---------- */
.page-privacy__note {
  margin-top: var(--spacing-3xl);
  padding: var(--spacing-xl);
  border: 1px dashed rgba(122, 122, 138, 0.3);
  border-radius: var(--radius-md);
  background-color: rgba(22, 22, 34, 0.5);
  background-image:
    linear-gradient(rgba(0, 255, 136, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 136, 0.025) 1px, transparent 1px);
  background-size: 22px 22px, 22px 22px;
}

.page-privacy__note-title {
  margin: 0 0 var(--spacing-sm);
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-green);
}

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

/* ---------- 返回顶部 ---------- */
.page-privacy__backtop {
  position: fixed;
  right: var(--spacing-lg);
  bottom: var(--spacing-lg);
  z-index: 60;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid rgba(0, 255, 136, 0.45);
  border-radius: var(--radius-pill);
  background: rgba(11, 11, 26, 0.85);
  color: var(--color-green);
  font-family: var(--font-display);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-decoration: none;
  box-shadow: 0 0 24px rgba(0, 255, 136, 0.18);
  transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.page-privacy__backtop::before {
  content: "↑";
  font-size: 1.05rem;
  line-height: 1;
}

.page-privacy__backtop:hover {
  background: var(--color-green);
  color: var(--color-bg-deep);
  box-shadow: 0 0 34px rgba(0, 255, 136, 0.44);
  transform: translateY(-2px);
}

/* ---------- 平板 ---------- */
@media (min-width: 768px) {
  .page-privacy__toc-list {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
  }

  .page-privacy__toc-link {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    border-bottom: 0;
    border: 1px solid rgba(122, 122, 138, 0.2);
    border-radius: var(--radius-sm);
    background: rgba(11, 11, 26, 0.4);
  }

  .page-privacy__toc-link:hover {
    border-color: rgba(0, 255, 136, 0.45);
    background: rgba(0, 255, 136, 0.06);
  }

  .page-privacy__section-body {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-privacy__item--wide {
    grid-column: 1 / -1;
  }

  .page-privacy__section-body--contact {
    display: block;
  }

  .page-privacy__contact-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ---------- 桌面 ---------- */
@media (min-width: 900px) {
  .page-privacy__section {
    display: grid;
    grid-template-columns: 150px minmax(0, 1fr);
    column-gap: var(--spacing-xl);
    row-gap: var(--spacing-xl);
  }

  .page-privacy__section::before {
    display: none;
  }

  .page-privacy__section-heading {
    grid-column: 2;
    margin-bottom: 0;
  }

  .page-privacy__section-index {
    grid-row: 1 / span 2;
    grid-column: 1;
    align-self: start;
    margin-bottom: 0;
    padding-right: var(--spacing-lg);
    border-right: 2px solid rgba(0, 255, 136, 0.32);
    font-size: 5rem;
  }

  .page-privacy__section-body {
    grid-column: 2;
  }

  .page-privacy__toc-list {
    grid-template-columns: repeat(5, 1fr);
  }
}

/* ---------- 宽屏桌面 ---------- */
@media (min-width: 1100px) {
  .page-privacy__contact-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}