.page-disclaimer {
  background: var(--c-paper);
  position: relative;
}

/* ===== Hero 首屏区 ===== */
.page-disclaimer__hero {
  position: relative;
  background: var(--c-dark);
  color: var(--c-white);
  padding: calc(var(--header-h) + 36px) 0 76px;
  overflow: hidden;
}
.page-disclaimer__hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
}
.page-disclaimer__hero::after {
  content: 'KAIYUN DATA // \6D88\606F\900A\62A5\8FB9\754C';
  position: absolute;
  bottom: 0;
  right: 0;
  background: var(--c-primary);
  color: var(--c-white);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1;
  padding: 10px 28px;
  z-index: 1;
  clip-path: polygon(14px 0, 100% 0, calc(100% - 14px) 100%, 0 100%);
}
.page-disclaimer__hero .container {
  position: relative;
  z-index: 1;
}
.page-disclaimer .breadcrumbs__link,
.page-disclaimer .breadcrumbs__current {
  color: rgba(255, 255, 255, 0.72);
  text-decoration: none;
  font-size: 13px;
}
.page-disclaimer .breadcrumbs__current {
  color: var(--c-white);
}
.page-disclaimer__crumbs-sep {
  color: rgba(255, 255, 255, 0.4);
  margin: 0 8px;
  font-family: var(--font-mono);
}
.page-disclaimer__hero-grid {
  display: grid;
  gap: 36px;
  margin-top: clamp(32px, 5vw, 64px);
}
.page-disclaimer__hero-copy {
  max-width: 680px;
}
.page-disclaimer__hero .eyebrow {
  color: var(--c-neon);
}
.page-disclaimer__title {
  color: var(--c-white);
  font-size: clamp(36px, 7vw, 72px);
  line-height: 1.04;
  margin: 16px 0 20px;
  letter-spacing: -0.03em;
  max-width: 10em;
}
.page-disclaimer__lede {
  color: rgba(255, 255, 255, 0.78);
  font-size: clamp(16px, 2vw, 19px);
  line-height: 1.7;
  max-width: 540px;
}
.page-disclaimer__hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}
.page-disclaimer__hero-figure {
  margin: 0;
  position: relative;
}
.page-disclaimer__hero-figure img {
  width: 100%;
  height: auto;
  display: block;
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}
.page-disclaimer__hero-caption {
  margin-top: 12px;
  text-align: right;
  font-family: var(--font-mono);
  font-size: 12px;
  color: rgba(255, 255, 255, 0.5);
}

/* ===== 条款正文区 ===== */
.page-disclaimer__doc {
  padding: var(--section-y) 0;
}
.page-disclaimer__doc-inner {
  background: var(--c-white);
  border: 1px solid var(--c-dark);
  box-shadow: 6px 6px 0 var(--c-line);
  padding: clamp(24px, 5vw, 64px);
}
.page-disclaimer__doc-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  padding-bottom: 28px;
  border-bottom: 2px solid var(--c-dark);
}
.page-disclaimer__doc-title {
  font-size: clamp(28px, 4vw, 40px);
  margin: 8px 0 0;
}
.page-disclaimer__doc-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.page-disclaimer__doc-version {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--c-ink);
  border: 1px solid var(--c-line);
  padding: 5px 12px;
}
.page-disclaimer__doc-intro {
  margin: 32px 0;
  background: var(--c-paper);
  border-left: 4px solid var(--c-primary);
  padding: 24px 24px 20px;
}
.page-disclaimer__doc-mark {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--c-white);
  background: var(--c-primary);
  padding: 4px 10px;
  margin-right: 10px;
  vertical-align: 2px;
}
.page-disclaimer__doc-principle {
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-dark);
  margin: 0;
}
.page-disclaimer__doc-sub {
  margin: 14px 0 0;
  font-size: 14px;
  color: var(--c-ink);
}
.page-disclaimer__doc-sub a {
  color: var(--c-deep);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ===== 条款列表 ===== */
.page-disclaimer__doc-list {
  border-top: 1px solid var(--c-line);
}
.page-disclaimer__clause {
  border-bottom: 1px solid var(--c-line);
}
.page-disclaimer__clause:last-child {
  border-bottom: 0;
}
.page-disclaimer__clause summary {
  list-style: none;
  cursor: pointer;
  display: grid;
  grid-template-columns: 48px 1fr auto;
  align-items: center;
  gap: 16px;
  padding: 24px 0;
}
.page-disclaimer__clause summary::-webkit-details-marker {
  display: none;
}
.page-disclaimer__clause summary:focus-visible {
  outline: 2px solid var(--c-primary);
  outline-offset: 4px;
  border-radius: 4px;
}
.page-disclaimer__clause summary:hover .page-disclaimer__clause-title {
  color: var(--c-primary);
}
.page-disclaimer__clause-num {
  width: 40px;
  height: 40px;
  border: 2px solid var(--c-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 13px;
  color: var(--c-primary);
}
.page-disclaimer__clause-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(18px, 2.4vw, 24px);
  color: var(--c-dark);
  letter-spacing: -0.02em;
  transition: color 0.2s var(--ease-out);
}
.page-disclaimer__clause-indicator {
  width: 26px;
  height: 26px;
  border: 1px solid var(--c-line);
  border-radius: 50%;
  position: relative;
  flex: 0 0 auto;
}
.page-disclaimer__clause-indicator::before,
.page-disclaimer__clause-indicator::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 11px;
  height: 2px;
  background: var(--c-dark);
  transform: translate(-50%, -50%);
}
.page-disclaimer__clause-indicator::after {
  transform: translate(-50%, -50%) rotate(90deg);
  transition: transform 0.2s var(--ease-out);
}
.page-disclaimer__clause[open] .page-disclaimer__clause-indicator::after {
  transform: translate(-50%, -50%) rotate(0deg);
}
.page-disclaimer__clause-body {
  padding: 20px 0 32px;
  max-width: 720px;
  margin-left: 64px;
  border-top: 1px dashed rgba(208, 212, 218, 0.6);
}
.page-disclaimer__clause-body p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-ink);
  margin: 0 0 12px;
}
.page-disclaimer__clause-body p:last-child {
  margin-bottom: 0;
}
.page-disclaimer__clause-body strong {
  color: var(--c-dark);
  font-weight: 700;
}
.page-disclaimer__email {
  color: var(--c-primary);
  font-family: var(--font-mono);
  font-size: 15px;
  word-break: break-all;
}
.page-disclaimer__mark {
  background: transparent;
  box-shadow: inset 0 -0.5em 0 rgba(255, 77, 0, 0.18);
  color: var(--c-dark);
  font-weight: 700;
  padding: 0 2px;
}
.page-disclaimer__clause-list {
  margin: 0 0 14px;
  padding-left: 18px;
}
.page-disclaimer__clause-list li {
  margin-bottom: 8px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--c-ink);
}
.page-disclaimer__clause-list li::marker {
  color: var(--c-primary);
}
.page-disclaimer__clause-body a {
  color: var(--c-deep);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 4px;
}

/* ===== 条款尾部 ===== */
.page-disclaimer__doc-end {
  margin-top: 40px;
  border-top: 2px solid var(--c-dark);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.page-disclaimer__doc-end p {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--c-ink);
  margin: 0;
}
.page-disclaimer__doc-end-mark {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--c-primary);
  border: 2px solid var(--c-primary);
  padding: 5px 12px;
  display: inline-block;
  letter-spacing: 0.08em;
}

/* ===== 尾部说明带 ===== */
.page-disclaimer__footer-note {
  background: var(--c-dark);
  color: var(--c-white);
  padding: 40px 0;
}
.page-disclaimer__footer-note-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.page-disclaimer__footer-note-text {
  margin: 0;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.72);
}
.page-disclaimer__footer-note .link-arrow {
  color: var(--c-white);
}

/* ===== 响应式：移动端优先增强 ===== */
@media (min-width: 768px) {
  .page-disclaimer__hero {
    padding: calc(var(--header-h) + 80px) 0 96px;
  }
  .page-disclaimer__hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 480px);
    align-items: end;
    gap: 64px;
  }
  .page-disclaimer__hero-copy {
    padding-bottom: 8px;
  }
}

@media (max-width: 479px) {
  .page-disclaimer__clause summary {
    grid-template-columns: 42px 1fr auto;
    gap: 12px;
  }
  .page-disclaimer__clause-num {
    width: 34px;
    height: 34px;
    font-size: 12px;
  }
  .page-disclaimer__clause-body {
    margin-left: 54px;
  }
  .page-disclaimer__hero::after {
    font-size: 11px;
    padding: 9px 20px;
  }
}

/* ===== 打印：只留条款文本 ===== */
@media print {
  .page-disclaimer__hero,
  .page-disclaimer__footer-note,
  .back-top {
    display: none !important;
  }
  .page-disclaimer__doc {
    padding: 0;
  }
  .page-disclaimer__doc-inner {
    border: none;
    box-shadow: none;
    padding: 0;
  }
  .page-disclaimer__clause summary {
    cursor: default;
  }
  .page-disclaimer__clause-indicator {
    display: none;
  }
}