.page-disclaimer {
  --uc-card-bg: linear-gradient(150deg, rgba(11, 42, 30, .85), rgba(5, 16, 11, .65));
  --uc-radius: 18px;
  background: var(--night-900);
  color: var(--silver-100);
  padding-bottom: clamp(40px, 6vw, 72px);
}

.page-disclaimer .container {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ── 首屏 ───────────────────────────── */
.page-disclaimer .usage-hero {
  position: relative;
  padding: clamp(84px, 12vw, 132px) 0 clamp(32px, 5vw, 52px);
  background:
    radial-gradient(110% 80% at 88% -10%, rgba(52, 217, 139, .2), transparent 60%),
    radial-gradient(80% 70% at 0% 110%, rgba(255, 106, 26, .1), transparent 62%),
    linear-gradient(180deg, var(--turf-800) 0%, var(--night-900) 82%);
  overflow: hidden;
}

.page-disclaimer .usage-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: repeating-linear-gradient(90deg, rgba(52, 217, 139, .05) 0 1px, transparent 1px 84px);
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9), transparent 85%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .9), transparent 85%);
}

.page-disclaimer .usage-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--neon-450), transparent);
  opacity: .5;
}

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

.page-disclaimer .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: clamp(22px, 4vw, 36px);
  font-size: var(--fs-200);
  color: var(--silver-300);
}

.page-disclaimer .breadcrumb a {
  color: var(--silver-300);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .2s var(--ease), border-color .2s var(--ease);
}

.page-disclaimer .breadcrumb a:hover,
.page-disclaimer .breadcrumb a:focus-visible {
  color: var(--neon-450);
  border-bottom-color: var(--neon-450);
}

.page-disclaimer .breadcrumb [aria-current="page"] {
  color: var(--silver-100);
}

.page-disclaimer .crumb-sep {
  color: rgba(185, 199, 192, .5);
}

.page-disclaimer .kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: var(--fs-200);
  letter-spacing: .2em;
  color: var(--neon-450);
}

.page-disclaimer h1 {
  margin: 0 0 clamp(16px, 2.6vw, 26px);
  max-width: 18ch;
  font-size: clamp(1.92rem, 6.2vw, 3.5rem);
  line-height: 1.14;
  font-weight: 800;
  letter-spacing: -.02em;
  color: var(--silver-100);
}

.page-disclaimer h1 .hl {
  color: var(--neon-450);
}

.page-disclaimer .lede {
  margin: 0 0 clamp(20px, 3vw, 28px);
  max-width: 64ch;
  font-size: var(--fs-300);
  line-height: 1.85;
  color: var(--silver-300);
}

.page-disclaimer .hero-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .chip {
  padding: 7px 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-pill);
  background: rgba(11, 42, 30, .6);
  font-family: var(--font-mono);
  font-size: var(--fs-100);
  letter-spacing: .06em;
  color: var(--silver-100);
}

/* ── 通栏图 ─────────────────────────── */
.page-disclaimer .usage-banner {
  margin: 0;
}

.page-disclaimer .usage-banner img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: clamp(170px, 26vw, 340px);
  object-fit: cover;
  object-position: center;
}

.page-disclaimer .usage-banner .media-caption {
  max-width: var(--shell);
  margin: 12px auto 0;
  padding-inline: var(--gutter);
  font-size: var(--fs-200);
  line-height: 1.7;
  color: var(--silver-300);
}

/* ── 目录 ───────────────────────────── */
.page-disclaimer .usage-index {
  padding: clamp(44px, 7vw, 76px) 0 clamp(16px, 3vw, 28px);
}

.page-disclaimer .toc-list {
  display: grid;
  gap: 10px;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-disclaimer .toc-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--uc-card-bg);
  color: inherit;
  text-decoration: none;
  transition: border-color .25s var(--ease), transform .25s var(--ease);
}

.page-disclaimer .toc-item:hover,
.page-disclaimer .toc-item:focus-visible {
  border-color: var(--neon-450);
  transform: translateY(-2px);
}

.page-disclaimer .toc-num {
  flex: 0 0 auto;
  font-family: var(--font-display);
  font-size: var(--fs-500);
  line-height: 1;
  letter-spacing: -.04em;
  color: var(--neon-450);
  font-variant-numeric: tabular-nums;
}

.page-disclaimer .toc-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.page-disclaimer .toc-title {
  font-size: var(--fs-300);
  font-weight: 700;
  color: var(--silver-100);
}

.page-disclaimer .toc-sub {
  font-size: var(--fs-200);
  line-height: 1.6;
  color: var(--silver-300);
}

/* ── 条款 ───────────────────────────── */
.page-disclaimer .clause {
  position: relative;
  padding: clamp(44px, 8vw, 84px) 0;
}

.page-disclaimer .clause::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--neon-450), rgba(52, 217, 139, 0) 58%);
  opacity: .7;
}

.page-disclaimer .clause--track {
  background: linear-gradient(180deg, rgba(11, 42, 30, .55), rgba(5, 16, 11, 0) 72%);
}

.page-disclaimer .clause--quote {
  background: radial-gradient(90% 70% at 100% 0%, rgba(52, 217, 139, .08), transparent 62%);
}

.page-disclaimer .clause-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-disclaimer .clause-num {
  font-family: var(--font-display);
  font-size: clamp(3rem, 9vw, 5.5rem);
  line-height: .86;
  letter-spacing: -.05em;
  color: rgba(52, 217, 139, .16);
  -webkit-text-stroke: 1px rgba(52, 217, 139, .55);
}

.page-disclaimer .clause-title {
  margin: 0 0 14px;
  font-size: clamp(1.5rem, 3.6vw, 2.25rem);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--silver-100);
}

.page-disclaimer .clause-lead {
  margin: 0 0 18px;
  max-width: 46ch;
  font-size: var(--fs-400);
  line-height: 1.7;
  color: var(--silver-100);
}

.page-disclaimer .clause-body > p {
  max-width: 68ch;
  margin: 0 0 14px;
  font-size: var(--fs-300);
  line-height: 1.85;
  color: var(--silver-300);
}

.page-disclaimer .clause-body > p a {
  color: var(--neon-450);
  text-decoration: none;
  border-bottom: 1px solid rgba(52, 217, 139, .45);
}

.page-disclaimer .clause-body > p a:hover,
.page-disclaimer .clause-body > p a:focus-visible {
  border-bottom-color: var(--neon-450);
}

.page-disclaimer .clause-list {
  display: grid;
  gap: 12px;
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
}

.page-disclaimer .clause-list li {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  padding: 14px 16px;
  border-left: 2px solid var(--turf-600);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: rgba(11, 42, 30, .45);
  font-size: var(--fs-300);
  line-height: 1.75;
  color: var(--silver-300);
}

.page-disclaimer .clause-list li a {
  color: var(--neon-450);
  text-decoration: none;
  border-bottom: 1px solid rgba(52, 217, 139, .45);
}

.page-disclaimer .li-key {
  font-family: var(--font-mono);
  font-size: var(--fs-200);
  letter-spacing: .14em;
  color: var(--neon-450);
}

/* ── 更新节奏条 ─────────────────────── */
.page-disclaimer .beat-track {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin: clamp(20px, 3vw, 30px) 0 clamp(18px, 3vw, 26px);
  padding: 0;
  list-style: none;
}

.page-disclaimer .beat-node {
  position: relative;
  padding-top: 22px;
  border-top: 2px solid var(--line-strong);
  transition: border-color .25s var(--ease);
}

.page-disclaimer .beat-node::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--night-900);
  border: 2px solid var(--neon-450);
  transition: background-color .25s var(--ease);
}

.page-disclaimer .beat-node:hover,
.page-disclaimer .beat-node:focus-within {
  border-color: var(--neon-450);
}

.page-disclaimer .beat-node:hover::before,
.page-disclaimer .beat-node:focus-within::before {
  background: var(--neon-450);
}

.page-disclaimer .beat-step {
  margin: 0 0 4px;
  font-size: var(--fs-300);
  font-weight: 700;
  color: var(--silver-100);
}

.page-disclaimer .beat-time {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: var(--fs-200);
  letter-spacing: .04em;
  color: var(--volt-500);
}

.page-disclaimer .beat-desc {
  margin: 0;
  font-size: var(--fs-200);
  line-height: 1.75;
  color: var(--silver-300);
}

/* ── 导出卡片 ───────────────────────── */
.page-disclaimer .export-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: clamp(18px, 3vw, 26px) 0;
}

.page-disclaimer .export-card {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(160deg, rgba(16, 88, 58, .55), rgba(5, 16, 11, .75));
}

.page-disclaimer .export-label {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: var(--fs-100);
  letter-spacing: .18em;
  color: var(--silver-300);
}

.page-disclaimer .export-value {
  margin: 0 0 8px;
  font-size: var(--fs-400);
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--neon-450);
}

.page-disclaimer .export-note {
  margin: 0;
  font-size: var(--fs-200);
  line-height: 1.75;
  color: var(--silver-300);
}

/* ── 引用标注卡 ─────────────────────── */
.page-disclaimer .quote-card {
  margin: clamp(18px, 3vw, 26px) 0;
  padding: 22px clamp(18px, 3vw, 28px);
  border: 1px dashed var(--line-strong);
  border-left: 3px solid var(--neon-450);
  border-radius: var(--radius-md);
  background: rgba(5, 16, 11, .6);
}

.page-disclaimer .quote-card-label {
  margin: 0 0 10px;
  font-size: var(--fs-200);
  letter-spacing: .08em;
  color: var(--silver-300);
}

.page-disclaimer .quote-text {
  margin: 0;
  font-family: var(--font-mono);
  font-size: var(--fs-300);
  line-height: 1.7;
  color: var(--silver-100);
  word-break: break-word;
}

/* ── 反馈流程与联系 ─────────────────── */
.page-disclaimer .flow-list {
  display: grid;
  gap: 12px;
  margin: clamp(18px, 3vw, 26px) 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer .flow-list li {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  font-size: var(--fs-300);
  line-height: 1.75;
  color: var(--silver-300);
}

.page-disclaimer .flow-num {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: var(--fs-200);
  color: var(--neon-450);
}

.page-disclaimer .contact-strip {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin: clamp(18px, 3vw, 26px) 0;
  padding: clamp(18px, 3vw, 26px);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(120deg, rgba(16, 88, 58, .7), rgba(11, 42, 30, .5));
}

.page-disclaimer .contact-label {
  margin: 0 0 6px;
  font-size: var(--fs-200);
  letter-spacing: .06em;
  color: var(--silver-300);
}

.page-disclaimer .contact-value {
  margin: 0;
  font-size: var(--fs-300);
  color: var(--silver-100);
  word-break: break-word;
}

.page-disclaimer .contact-value.numeric {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

.page-disclaimer .cta-panel {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: clamp(24px, 4vw, 36px);
  padding: clamp(22px, 4vw, 34px);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 120% at 100% 0%, rgba(255, 106, 26, .18), transparent 60%),
    linear-gradient(180deg, var(--turf-800), var(--night-900));
}

.page-disclaimer .cta-copy {
  margin: 0;
  max-width: 46ch;
  font-size: var(--fs-300);
  line-height: 1.75;
  color: var(--silver-100);
}

/* ── 响应式 ─────────────────────────── */
@media (min-width: 700px) {
  .page-disclaimer .clause-list li {
    grid-template-columns: 122px minmax(0, 1fr);
    align-items: baseline;
    gap: 6px 18px;
  }

  .page-disclaimer .contact-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-disclaimer .toc-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px 16px;
  }

  .page-disclaimer .beat-track {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 18px;
  }

  .page-disclaimer .export-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 880px) {
  .page-disclaimer .clause-inner {
    grid-template-columns: minmax(96px, 158px) minmax(0, 1fr);
    gap: 10px 48px;
  }

  .page-disclaimer .clause-num {
    position: sticky;
    top: 116px;
    align-self: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .toc-item,
  .page-disclaimer .beat-node,
  .page-disclaimer .beat-node::before {
    transition: none;
  }

  .page-disclaimer .toc-item:hover,
  .page-disclaimer .toc-item:focus-visible {
    transform: none;
  }
}