.page-disclaimer {
  --pd-cut: 14px;
  --pd-pad: clamp(18px, 3.6vw, 30px);
  --pd-radius: 12px;
  padding-bottom: 72px;
  overflow-x: hidden;
}

.page-disclaimer .breadcrumb {
  margin: 26px 0 4px;
}

/* ---------- 首屏 ---------- */

.page-disclaimer .usage-hero {
  position: relative;
  padding: 26px 0 56px;
  isolation: isolate;
}

.page-disclaimer .usage-hero::before {
  content: "";
  position: absolute;
  top: -140px;
  right: -180px;
  width: 560px;
  height: 560px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(55, 226, 213, 0.14), transparent 68%);
  pointer-events: none;
  z-index: -1;
}

.page-disclaimer .usage-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 44px);
  align-items: center;
}

.page-disclaimer .usage-hero__copy {
  min-width: 0;
}

.page-disclaimer .usage-hero__title {
  margin: 16px 0 20px;
  font-family: var(--font-display);
  font-size: clamp(38px, 8vw, 76px);
  font-weight: 800;
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--paper);
  max-width: 12em;
}

.page-disclaimer .usage-hero__lead {
  margin: 0 0 30px;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--muted);
  max-width: 34em;
}

.page-disclaimer .usage-hero__quick {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-soft);
}

.page-disclaimer .usage-hero__quick li {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding: 15px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-disclaimer .usage-hero__num {
  font-size: 12.5px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

.page-disclaimer .usage-hero__quick-text {
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-disclaimer .usage-hero__quick-text b {
  display: inline-block;
  margin-right: 6px;
  color: var(--paper);
  font-weight: 600;
}

.page-disclaimer .usage-hero__figure {
  position: relative;
  margin: 0;
  padding: 0;
  border: 1px solid var(--line);
  background: var(--ink-800);
  clip-path: polygon(0 0, calc(100% - 30px) 0, 100% 30px, 100% 100%, 0 100%);
  overflow: hidden;
  min-width: 0;
}

.page-disclaimer .usage-hero__figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 5 / 3;
}

.page-disclaimer .usage-hero__figure figcaption {
  padding: 14px 18px 18px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted);
  border-top: 1px solid var(--line-soft);
}

/* ---------- 分段标签 ---------- */

.page-disclaimer .usage-tabs {
  padding: 8px 0 20px;
}

.page-disclaimer .usage-tabs .tablist {
  display: flex;
  gap: 4px;
  width: max-content;
  max-width: 100%;
  margin: 0 0 30px;
  padding: 5px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--ink-800);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.page-disclaimer .usage-tabs .tablist::-webkit-scrollbar {
  display: none;
}

.page-disclaimer .usage-tabs .tab {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-family: var(--font-body);
  font-size: 14.5px;
  font-weight: 600;
  padding: 11px 22px;
  border-radius: 999px;
  white-space: nowrap;
  cursor: pointer;
  transition: color var(--dur) var(--ease), background-color var(--dur) var(--ease);
}

.page-disclaimer .usage-tabs .tab:hover {
  color: var(--paper);
  background: var(--ink-700);
}

.page-disclaimer .usage-tabs .tab[aria-selected="true"] {
  background: var(--orange);
  color: var(--ink-900);
}

.page-disclaimer .usage-tabs .tab:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-disclaimer .usage-tabs .tab-panel {
  padding: 0 0 20px;
  animation: pd-fade 220ms var(--ease) both;
}

.page-disclaimer .usage-tabs .tab-panel:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 8px;
}

@keyframes pd-fade {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}

.page-disclaimer .usage-panel__title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-size: clamp(24px, 4vw, 34px);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.25;
  color: var(--paper);
}

/* ---------- 编号清单 ---------- */

.page-disclaimer .usage-steps {
  counter-reset: pd-step;
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-soft);
}

.page-disclaimer .usage-steps > li {
  counter-increment: pd-step;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 12px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-disclaimer .usage-steps > li::before {
  content: counter(pd-step, decimal-leading-zero);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  padding-top: 4px;
}

.page-disclaimer .usage-steps > li > div {
  min-width: 0;
}

.page-disclaimer .usage-steps h4 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--paper);
  letter-spacing: 0.005em;
}

.page-disclaimer .usage-steps p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-disclaimer .usage-steps a,
.page-disclaimer .usage-scope__body a {
  color: var(--cyan);
  text-decoration: none;
  box-shadow: inset 0 -2px 0 rgba(55, 226, 213, 0);
  transition: box-shadow var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-disclaimer .usage-steps a:hover,
.page-disclaimer .usage-scope__body a:hover,
.page-disclaimer .usage-note a:hover {
  color: var(--cyan-soft);
  box-shadow: inset 0 -2px 0 var(--cyan-soft);
}

/* ---------- 警示提示条 ---------- */

.page-disclaimer .usage-note {
  position: relative;
  margin: 26px 0 0;
  padding: 16px 20px;
  border-left: 3px solid var(--orange);
  border-radius: 0 8px 8px 0;
  background: linear-gradient(90deg, rgba(255, 138, 61, 0.12), rgba(255, 138, 61, 0.02) 78%);
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--amber);
}

.page-disclaimer .usage-note a {
  color: var(--amber);
  font-weight: 600;
  text-decoration: none;
  box-shadow: inset 0 -2px 0 rgba(255, 195, 138, 0);
  transition: box-shadow var(--dur) var(--ease);
}

/* ---------- 使用中：折角面板 ---------- */

.page-disclaimer .usage-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

.page-disclaimer .usage-fold {
  position: relative;
  min-width: 0;
  padding: 22px 22px 24px;
  border: 1px solid var(--line);
  background: var(--ink-800);
  clip-path: polygon(0 0, calc(100% - var(--pd-cut)) 0, 100% var(--pd-cut), 100% 100%, 0 100%);
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-disclaimer .usage-fold::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: var(--pd-cut);
  height: var(--pd-cut);
  background: linear-gradient(225deg, var(--orange) 0 45%, transparent 46%);
  opacity: 0.85;
  pointer-events: none;
}

.page-disclaimer .usage-fold:hover {
  background: var(--ink-700);
  border-color: var(--line);
}

.page-disclaimer .usage-fold h4 {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--paper);
}

.page-disclaimer .usage-fold p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 设备与版本 ---------- */

.page-disclaimer .usage-specs {
  margin-top: 30px;
  padding: var(--pd-pad);
  border: 1px solid var(--line);
  border-radius: var(--pd-radius);
  background:
    linear-gradient(180deg, rgba(23, 57, 91, 0.55), rgba(16, 42, 69, 0.9));
}

.page-disclaimer .usage-specs__title {
  margin: 0 0 18px;
  font-size: 18px;
  font-weight: 600;
  color: var(--paper);
}

.page-disclaimer .usage-specs dl {
  margin: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line-soft);
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  overflow: hidden;
}

.page-disclaimer .usage-specs dl > div {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 6px 16px;
  padding: 14px 16px;
  background: var(--ink-800);
}

.page-disclaimer .usage-specs dt {
  font-size: 14px;
  color: var(--muted);
}

.page-disclaimer .usage-specs dd {
  margin: 0;
  font-size: 14.5px;
  color: var(--paper);
  text-align: right;
}

.page-disclaimer .usage-specs dd.mono {
  font-size: 13px;
  letter-spacing: 0.05em;
  color: var(--cyan);
}

.page-disclaimer .usage-specs__foot {
  margin: 16px 0 0;
  font-size: 13.5px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 责任范围 ---------- */

.page-disclaimer .usage-scope {
  padding: 56px 0 24px;
  border-top: 1px solid var(--line-soft);
  margin-top: 40px;
}

.page-disclaimer .usage-scope__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
}

.page-disclaimer .usage-scope__aside h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(26px, 4.4vw, 40px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.015em;
  color: var(--paper);
  max-width: 10em;
}

.page-disclaimer .usage-scope__body {
  min-width: 0;
  border-left: 2px solid var(--line);
  padding-left: 22px;
}

.page-disclaimer .usage-scope__body p {
  margin: 0 0 1.1em;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--muted);
}

.page-disclaimer .usage-scope__body p:last-of-type {
  margin-bottom: 1.4em;
}

.page-disclaimer .usage-tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
}

.page-disclaimer .usage-tags li {
  padding: 6px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--cyan);
  background: rgba(23, 57, 91, 0.5);
}

/* ---------- 收尾 CTA ---------- */

.page-disclaimer .usage-cta {
  margin-top: 44px;
}

.page-disclaimer .usage-cta__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 24px;
  align-items: center;
  padding: var(--pd-pad);
  border: 1px solid var(--line);
  background: var(--ink-800);
  clip-path: polygon(0 0, calc(100% - 34px) 0, 100% 34px, 100% 100%, 0 100%);
}

.page-disclaimer .usage-cta h2 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: clamp(24px, 4vw, 34px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
  color: var(--paper);
}

.page-disclaimer .usage-cta p {
  margin: 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
  max-width: 44em;
}

.page-disclaimer .usage-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-disclaimer .usage-split {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-disclaimer .usage-specs dl {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-disclaimer .usage-specs dl > div {
    flex-direction: column;
    align-items: flex-start;
  }

  .page-disclaimer .usage-specs dd {
    text-align: left;
  }
}

@media (min-width: 900px) {
  .page-disclaimer .usage-hero {
    padding: 34px 0 72px;
  }

  .page-disclaimer .usage-hero__grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }

  .page-disclaimer .usage-scope__grid {
    grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
    gap: 48px;
  }

  .page-disclaimer .usage-cta__inner {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 36px;
    padding: 38px 40px;
  }

  .page-disclaimer .usage-cta__actions {
    justify-content: flex-end;
  }
}

@media (min-width: 1080px) {
  .page-disclaimer .usage-steps > li {
    grid-template-columns: 56px minmax(0, 1fr);
    gap: 8px;
  }

  .page-disclaimer .usage-specs {
    margin-top: 38px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-disclaimer .usage-tabs .tab-panel,
  .page-disclaimer .usage-fold,
  .page-disclaimer .usage-tabs .tab {
    animation: none;
    transition-duration: 1ms;
  }
}