/* ============================================
   使用说明与条款 · 页面专属样式
   作用域：.page-disclaimer
   移动端优先
   ============================================ */
.page-disclaimer {
  --terms-clause-gap: 1.5rem;
  --terms-index-width: 264px;
  background: var(--color-space);
  color: var(--color-frost);
  font-family: var(--font-body);
  overflow-x: clip;
}

/* ---------- Hero 顶部横幅 ---------- */
.page-disclaimer__hero {
  padding: calc(var(--header-height) + 1.5rem) 0 0;
  background: linear-gradient(150deg, var(--color-space) 0%, var(--color-space-raised) 72%, var(--color-space) 100%);
  border-bottom: 1px solid var(--color-glass);
}

.page-disclaimer__hero .breadcrumbs {
  margin-bottom: 2rem;
}

.page-disclaimer__hero-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.24em;
  color: var(--color-neon);
  background: rgba(200, 255, 0, 0.06);
  border: 1px solid rgba(200, 255, 0, 0.2);
  border-radius: var(--radius-full);
  padding: 0.375rem 0.875rem;
  margin-bottom: 1.25rem;
}

.page-disclaimer__hero-inner {
  max-width: 820px;
  position: relative;
}

.page-disclaimer__hero-inner h1 {
  font-family: var(--font-heading);
  font-size: clamp(1.875rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: 0.04em;
  line-height: 1.15;
  margin: 0 0 1.25rem;
}

.page-disclaimer__hero-inner .lede {
  color: var(--color-silver);
  font-size: 1rem;
  line-height: 1.75;
  margin: 0;
}

.page-disclaimer__hero-figure {
  margin: 2.5rem 0 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-glass);
  box-shadow: var(--shadow);
  position: relative;
}

.page-disclaimer__hero-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-disclaimer__hero-caption {
  font-size: 0.8125rem;
  color: var(--color-silver);
  padding: 0.875rem 1.25rem;
  background: var(--color-space-deep);
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
}

/* ---------- 主体双栏布局 ---------- */
.page-disclaimer__main {
  padding-top: 3rem;
  padding-bottom: 5rem;
}

.page-disclaimer__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: start;
}

/* ---------- 左侧索引 ---------- */
.page-disclaimer__index {
  background: linear-gradient(180deg, var(--color-space-deep) 0%, var(--color-space) 100%);
  border: 1px solid var(--color-glass);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
}

.page-disclaimer__index::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--color-neon);
  opacity: 0.6;
}

.page-disclaimer__index-kicker {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-neon);
  letter-spacing: 0.2em;
  margin: 0 0 0.5rem;
}

.page-disclaimer__index-title {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: 700;
  margin: 0 0 1.25rem;
}

.page-disclaimer__index-nav {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.page-disclaimer__index-nav a {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 0.625rem 0.75rem;
  border-radius: var(--radius-md);
  color: var(--color-silver);
  text-decoration: none;
  font-size: 0.9375rem;
  font-weight: 500;
  border-left: 3px solid transparent;
  transition: background 200ms ease, color 200ms ease, border-color 200ms ease;
}

.page-disclaimer__index-nav a:hover,
.page-disclaimer__index-nav a:focus-visible {
  color: var(--color-frost);
  background: var(--color-glass);
  border-left-color: var(--color-neon);
}

.page-disclaimer__index-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-neon);
  opacity: 0.85;
  min-width: 1.5rem;
}

.page-disclaimer__index-meta {
  margin: 1.5rem 0 0;
  padding-top: 1rem;
  border-top: 1px solid var(--color-glass);
  font-size: 0.8125rem;
  color: var(--color-silver);
}

/* ---------- 右侧条款内容 ---------- */
.page-disclaimer__content {
  display: flex;
  flex-direction: column;
  gap: var(--terms-clause-gap);
}

.page-disclaimer__clause {
  position: relative;
  padding: 1.75rem 1.5rem;
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, var(--color-space-raised) 0%, rgba(18, 43, 80, 0.85) 100%);
  border: 1px solid var(--color-glass);
  overflow: hidden;
}

.page-disclaimer__clause::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-neon) 0%, rgba(200, 255, 0, 0.15) 55%, transparent 100%);
  opacity: 0.7;
}

.page-disclaimer__clause-head {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.page-disclaimer__clause-num {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-neon);
  line-height: 0.85;
  letter-spacing: -0.04em;
}

.page-disclaimer__clause-head .exh-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-silver);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  border-left: 2px solid var(--color-mist);
  padding-left: 0.75rem;
}

.page-disclaimer__clause h2 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 0.875rem;
}

.page-disclaimer__clause-lede {
  color: var(--color-silver);
  font-size: 0.9375rem;
  line-height: 1.75;
  margin: 0 0 1.5rem;
  max-width: 42em;
}

/* ---------- 服务说明三卡片 ---------- */
.page-disclaimer__spec-grid {
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.page-disclaimer__spec-item {
  padding: 1.375rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-glass);
  transition: transform 200ms ease, border-color 200ms ease;
}

.page-disclaimer__spec-item:hover {
  transform: translateY(-2px);
  border-color: rgba(200, 255, 0, 0.4);
}

.page-disclaimer__spec-item h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-neon);
  margin: 0 0 0.5rem;
  letter-spacing: 0.02em;
}

.page-disclaimer__spec-item p {
  font-size: 0.875rem;
  color: var(--color-silver);
  line-height: 1.7;
  margin: 0;
}

/* ---------- 列表 ---------- */
.page-disclaimer__list {
  list-style: none;
  margin: 0 0 1.5rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.page-disclaimer__list li {
  position: relative;
  padding-left: 1.5rem;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--color-silver);
}

.page-disclaimer__list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--color-neon);
  font-family: var(--font-mono);
}

.page-disclaimer__list--ordered {
  counter-reset: terms-counter;
}

.page-disclaimer__list--ordered li {
  counter-increment: terms-counter;
}

.page-disclaimer__list--ordered li::before {
  content: counter(terms-counter) ".";
  font-family: var(--font-mono);
  font-weight: 700;
}

.page-disclaimer__list strong {
  color: var(--color-frost);
  font-weight: 600;
}

/* ---------- 高亮说明框 ---------- */
.page-disclaimer__notice {
  margin-top: 1.5rem;
  padding: 1rem 1.25rem;
  background: rgba(200, 255, 0, 0.05);
  border-left: 3px solid var(--color-neon);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--color-frost);
}

.page-disclaimer__notice p {
  margin: 0;
}

/* ---------- 用户行为 ---------- */
.page-disclaimer__behavior-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.page-disclaimer__behavior-item {
  display: flex;
  align-items: flex-start;
  gap: 0.875rem;
  padding: 1.125rem 1.25rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-glass);
}

.page-disclaimer__behavior-item .status-pill {
  flex-shrink: 0;
  min-width: 4.5rem;
  text-align: center;
}

.page-disclaimer__behavior-item .status-pill--bad {
  background: rgba(255, 107, 0, 0.12);
  color: var(--color-orange);
  border: 1px solid rgba(255, 107, 0, 0.3);
}

.page-disclaimer__behavior-item p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--color-silver);
}

/* ---------- 免责声明警示 ---------- */
.page-disclaimer__alert {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.375rem;
  margin-bottom: 1.5rem;
  border-radius: var(--radius-md);
  background: rgba(255, 107, 0, 0.08);
  border: 1px solid rgba(255, 107, 0, 0.35);
}

.page-disclaimer__alert-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  min-width: 2rem;
  border-radius: 50%;
  background: var(--color-orange);
  color: var(--color-space);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1rem;
}

.page-disclaimer__alert p {
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--color-frost);
}

.page-disclaimer__alert strong {
  color: var(--color-orange);
}

/* ---------- details 折叠 ---------- */
.page-disclaimer__details {
  margin-top: 1.25rem;
  border: 1px solid var(--color-glass);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.02);
  overflow: hidden;
}

.page-disclaimer__details summary {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.875rem 1.125rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-frost);
  cursor: pointer;
  list-style: none;
  transition: background 200ms ease;
  user-select: none;
}

.page-disclaimer__details summary::-webkit-details-marker {
  display: none;
}

.page-disclaimer__details summary::before {
  content: "+";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 50%;
  background: var(--color-mist);
  color: var(--color-frost);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1;
  transition: background 200ms ease, transform 200ms ease;
}

.page-disclaimer__details[open] summary::before {
  content: "–";
  background: var(--color-neon);
  color: var(--color-space);
  transform: rotate(180deg);
}

.page-disclaimer__details summary:hover {
  background: var(--color-glass);
}

.page-disclaimer__details > p {
  padding: 0.25rem 1.125rem 1rem;
  margin: 0;
  font-size: 0.875rem;
  line-height: 1.75;
  color: var(--color-silver);
}

/* ---------- 联系咨询 ---------- */
.page-disclaimer__contact-grid {
  grid-template-columns: 1fr;
  gap: 0.875rem;
  margin-bottom: 1.25rem;
}

.page-disclaimer__contact-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin: 0;
  padding: 0;
}

.page-disclaimer__contact-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.875rem 1.125rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-glass);
}

.page-disclaimer__contact-item dt {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: var(--color-silver);
}

.page-disclaimer__contact-item dd {
  margin: 0;
  font-size: 0.9375rem;
  color: var(--color-frost);
  word-break: break-word;
}

.page-disclaimer__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
  margin-top: 1.75rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-glass);
}

/* ---------- 桌面端断点 960px ---------- */
@media (min-width: 960px) {
  .page-disclaimer__hero {
    padding-top: calc(var(--header-height) + 2.5rem);
  }

  .page-disclaimer__hero-inner {
    padding-right: 6rem;
  }

  .page-disclaimer__hero-figure {
    margin-top: 3rem;
    width: calc(100% - 4rem);
    margin-left: auto;
  }

  .page-disclaimer__main {
    padding-top: 3.5rem;
  }

  .page-disclaimer__layout {
    grid-template-columns: var(--terms-index-width) 1fr;
    gap: 2.5rem;
  }

  .page-disclaimer__index {
    position: sticky;
    top: calc(var(--header-height) + 1.5rem);
    padding: 1.75rem;
  }

  .page-disclaimer__clause {
    padding: 2.5rem 2.5rem;
  }

  .page-disclaimer__clause-num {
    font-size: 3rem;
  }

  .page-disclaimer__clause h2 {
    font-size: 1.75rem;
  }

  .page-disclaimer__behavior-grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-disclaimer__contact-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
  }

  .page-disclaimer__details {
    margin-top: 1.5rem;
  }
}

/* ---------- 窄屏适配 480px ---------- */
@media (max-width: 480px) {
  .page-disclaimer__hero-inner h1 {
    font-size: 1.625rem;
  }

  .page-disclaimer__clause {
    padding: 1.375rem 1rem;
  }

  .page-disclaimer__hero-caption {
    font-size: 0.75rem;
  }

  .page-disclaimer__behavior-item {
    flex-direction: column;
    gap: 0.5rem;
  }

  .page-disclaimer__behavior-item .status-pill {
    align-self: flex-start;
  }
}