/* ========== 使用说明 /terms/ 页面专属样式 ========== */
.page-disclaimer {
  --section-gap: 3.5rem;
  --clause-gap: 1rem;
}

/* ---------- Hero ---------- */
.page-disclaimer__hero {
  position: relative;
  overflow: hidden;
  padding: 2rem 0 3rem;
  border-bottom: 1px solid var(--clr-border);
  background:
    radial-gradient(circle at 82% 22%, rgba(15, 76, 129, 0.5) 0%, transparent 46%),
    linear-gradient(180deg, #0B1E36 0%, #0D2742 100%);
}

.page-disclaimer__hero::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(0, 255, 136, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 255, 136, 0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: linear-gradient(to right, transparent 12%, #000 60%, transparent 100%);
  mask-image: linear-gradient(to right, transparent 12%, #000 60%, transparent 100%);
}

.page-disclaimer__hero-inner {
  position: relative;
  z-index: 1;
}

.page-disclaimer__hero-grid {
  display: grid;
  gap: 2rem;
  align-items: center;
  margin-top: 1.5rem;
}

.page-disclaimer__hero-tag {
  margin: 0 0 1rem;
}

.page-disclaimer__hero-copy h1 {
  margin: 0.75rem 0 0.6rem;
  font-family: var(--font-headline);
  font-size: clamp(2.4rem, 6vw, 3.25rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: 0.015em;
  color: var(--clr-heading);
}

.page-disclaimer__hero-lead {
  max-width: 34rem;
  margin: 0;
  color: var(--clr-muted);
  font-size: 1.04rem;
  line-height: 1.75;
}

.page-disclaimer__hero-figure {
  width: 200px;
  height: 200px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  border: 1px solid var(--clr-accent-line);
  background: var(--clr-secondary);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3), 0 0 30px rgba(0, 255, 136, 0.08);
}

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

@media (min-width: 720px) {
  .page-disclaimer__hero {
    padding: 3rem 0 4.5rem;
  }
  .page-disclaimer__hero-grid {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 3rem;
    margin-top: 2rem;
  }
  .page-disclaimer__hero-figure {
    margin: 0;
  }
}

/* ---------- 目录 ---------- */
.page-disclaimer__toc-wrap {
  position: sticky;
  top: var(--header-h);
  z-index: 20;
  border-bottom: 1px solid var(--clr-border);
  background: rgba(11, 30, 54, 0.86);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.page-disclaimer__toc {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.75rem;
  padding: 0.9rem 0;
}

.page-disclaimer__toc-label {
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--clr-muted);
  white-space: nowrap;
  margin-right: 0.25rem;
}

.page-disclaimer__toc-link {
  color: var(--clr-text);
  text-decoration: none;
  font-size: 0.94rem;
  padding: 0.35rem 0.95rem;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-pill);
  transition: border-color var(--transition-fast), color var(--transition-fast), background var(--transition-fast);
}

.page-disclaimer__toc-link:hover,
.page-disclaimer__toc-link:focus-visible {
  border-color: var(--clr-accent-line);
  color: var(--clr-accent);
  background: var(--clr-accent-soft);
  outline: none;
}

/* ---------- 条款主体 ---------- */
.page-disclaimer__content {
  padding: 3rem 0 4rem;
}

.page-disclaimer__sections {
  display: grid;
  gap: var(--section-gap);
}

.page-disclaimer__section {
  scroll-margin-top: calc(var(--header-h) + 4rem);
}

.page-disclaimer__section-head {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  margin-bottom: 1.75rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--clr-border);
}

.page-disclaimer__section-index {
  font-family: var(--font-data);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
  color: var(--clr-accent);
  min-width: 2.6rem;
}

.page-disclaimer__section-head h2 {
  margin: 0 0 0.25rem;
  font-family: var(--font-headline);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--clr-heading);
}

.page-disclaimer__section-sub {
  margin: 0;
  color: var(--clr-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.page-disclaimer__clause-list {
  display: grid;
  gap: var(--clause-gap);
}

.page-disclaimer__clause {
  background: var(--clr-secondary);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.page-disclaimer__clause[open] {
  border-color: var(--clr-accent-line);
  box-shadow: var(--shadow-accent);
}

.page-disclaimer__clause summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: baseline;
  gap: 0.5rem 1rem;
  flex-wrap: wrap;
  padding: 1.2rem 1.5rem;
  font-family: var(--font-headline);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--clr-heading);
  transition: background var(--transition-fast);
}

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

.page-disclaimer__clause summary::marker {
  display: none;
  content: "";
}

.page-disclaimer__clause summary:hover {
  background: rgba(255, 255, 255, 0.03);
}

.page-disclaimer__clause summary:focus-visible {
  outline: 2px solid var(--clr-accent);
  outline-offset: -2px;
  border-radius: var(--radius-md);
}

.page-disclaimer__clause-num {
  font-family: var(--font-data);
  font-size: 0.82rem;
  font-weight: 400;
  color: var(--clr-accent);
  white-space: nowrap;
}

.page-disclaimer__clause summary::after {
  content: "+";
  margin-left: auto;
  font-family: var(--font-data);
  font-size: 1.15rem;
  color: var(--clr-muted);
  transition: transform var(--transition-fast), color var(--transition-fast);
}

.page-disclaimer__clause[open] summary::after {
  transform: rotate(45deg);
  color: var(--clr-accent);
}

.page-disclaimer__clause-body {
  padding: 0 1.5rem 1.5rem;
  color: var(--clr-text);
  font-size: 0.98rem;
  line-height: 1.85;
}

.page-disclaimer__clause-body p {
  margin: 0;
}

/* ---------- 免责声明警示框 ---------- */
.page-disclaimer__alert {
  position: relative;
  display: flex;
  gap: 1rem;
  padding: 1.5rem;
  margin-top: 2.5rem;
  border: 2px solid var(--clr-warning);
  border-radius: var(--radius-md);
  background: var(--clr-warning-soft);
  color: var(--clr-text);
}

.page-disclaimer__alert::before {
  content: "";
  position: absolute;
  top: -2px;
  left: -2px;
  width: 42px;
  height: 2px;
  background: var(--clr-warning);
  box-shadow: 0 0 12px rgba(255, 106, 0, 0.6);
}

.page-disclaimer__alert svg {
  flex-shrink: 0;
  color: var(--clr-warning);
  width: 26px;
  height: 26px;
  margin-top: 0.2rem;
}

.page-disclaimer__alert h3 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--clr-warning);
}

.page-disclaimer__alert p {
  margin: 0;
  font-size: 0.96rem;
  line-height: 1.8;
}

/* ---------- 相关链接 ---------- */
.page-disclaimer__rel-links {
  padding: 0 0 4rem;
}

.page-disclaimer__rel-grid {
  display: grid;
  gap: 1rem;
}

@media (min-width: 768px) {
  .page-disclaimer__rel-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.page-disclaimer__rel-card {
  display: block;
  padding: 1.25rem 1.5rem;
  background: var(--clr-secondary);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.page-disclaimer__rel-card:hover,
.page-disclaimer__rel-card:focus-visible {
  border-color: var(--clr-accent-line);
  transform: translateY(-3px);
  box-shadow: var(--shadow-accent);
  outline: none;
}

.page-disclaimer__rel-card span {
  display: block;
  font-family: var(--font-headline);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--clr-accent);
  margin-bottom: 0.35rem;
}

.page-disclaimer__rel-card p {
  margin: 0;
  color: var(--clr-muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ---------- 无障碍：减少动态 ---------- */
@media (prefers-reduced-motion: reduce) {
  .page-disclaimer__clause summary::after,
  .page-disclaimer__clause,
  .page-disclaimer__rel-card,
  .page-disclaimer__toc-link {
    transition: none;
  }
}