.page-disclaimer {
  --ud-node: 56px;
  --ud-rail: 216px;
  --ud-line: rgba(34, 48, 79, .88);
  --ud-line-soft: rgba(34, 48, 79, .5);
  --ud-panel: rgba(11, 18, 38, .72);
}

/* ---------- 首屏 ---------- */

.page-disclaimer .usage-hero {
  position: relative;
  padding: 28px 0 8px;
  overflow: hidden;
}

.page-disclaimer .usage-hero::before {
  content: "";
  position: absolute;
  inset: -30% -12% auto -12%;
  height: 460px;
  background:
    radial-gradient(58% 96% at 18% 0%, rgba(122, 77, 255, .30), transparent 72%),
    radial-gradient(52% 88% at 86% 8%, rgba(34, 224, 214, .16), transparent 72%);
  pointer-events: none;
  z-index: 0;
}

.page-disclaimer .usage-hero .gx-shell {
  position: relative;
  z-index: 1;
}

.page-disclaimer .usage-hero .gx-display {
  margin: 14px 0 0;
  max-width: 16em;
}

.page-disclaimer .usage-hero .gx-lead {
  margin-top: 18px;
  max-width: 44em;
}

.page-disclaimer .usage-banner {
  margin: 34px 0 0;
  border: 1px solid var(--line-soft);
  clip-path: var(--cut-tr);
  background: var(--deep-navy);
}

.page-disclaimer .usage-banner .gx-media__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---------- 步骤轨道 ---------- */

.page-disclaimer .usage-step {
  position: relative;
  padding: 44px 0;
}

.page-disclaimer .usage-step__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 22px;
}

.page-disclaimer .usage-step__node {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
}

.page-disclaimer .usage-step__num {
  flex: none;
  display: grid;
  place-items: center;
  width: var(--ud-node);
  height: var(--ud-node);
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--ion-cyan);
  background:
    linear-gradient(158deg, rgba(34, 224, 214, .16), rgba(122, 77, 255, .12));
  border: 1px solid var(--ud-line);
  clip-path: var(--cut-sm);
}

.page-disclaimer .usage-step__title {
  margin: 0;
  font-size: 21px;
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -.01em;
  color: var(--starlight);
}

.page-disclaimer .usage-step__body {
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-width: 0;
}

.page-disclaimer .usage-step__body .gx-text {
  max-width: 40em;
}

.page-disclaimer .usage-step__body .gx-muted {
  max-width: 40em;
  line-height: 1.75;
}

.page-disclaimer .usage-step__body a {
  color: var(--ion-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 224, 214, .35);
}

.page-disclaimer .usage-step__body a:hover,
.page-disclaimer .usage-step__body a:focus-visible {
  color: var(--starlight);
  border-bottom-color: var(--starlight);
}

/* 引用示例 */

.page-disclaimer .usage-cite {
  margin: 2px 0 0;
  padding: 16px 20px;
  background: var(--panel-glass);
  border: 1px solid var(--ud-line-soft);
  border-left: 2px solid var(--nebula-purple);
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 2;
  letter-spacing: .02em;
  color: var(--starlight);
  overflow-x: auto;
}

.page-disclaimer .usage-cite__line {
  margin: 0;
  white-space: nowrap;
}

.page-disclaimer .usage-cite__k {
  display: inline-block;
  min-width: 6.5em;
  color: var(--mist);
}

/* 操作序号列表 */

.page-disclaimer .usage-ordered {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  counter-reset: none;
}

.page-disclaimer .usage-ordered__item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 16px;
  background: var(--ud-panel);
  border: 1px solid var(--ud-line-soft);
  font-size: 15px;
  line-height: 1.75;
  color: var(--starlight);
}

.page-disclaimer .usage-ordered__idx {
  flex: none;
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  margin-top: 2px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  color: var(--nebula-purple);
  border: 1px solid rgba(122, 77, 255, .45);
  background: rgba(122, 77, 255, .10);
}

/* 排查清单 */

.page-disclaimer .usage-check {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
  border-top: 1px solid var(--ud-line-soft);
}

.page-disclaimer .usage-check__item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 4px 14px 2px;
  border-bottom: 1px solid var(--ud-line-soft);
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

.page-disclaimer .usage-check__box {
  flex: none;
  position: relative;
  width: 15px;
  height: 15px;
  margin-top: 6px;
  border: 1px solid var(--ud-line);
  background: rgba(34, 224, 214, .05);
}

.page-disclaimer .usage-check__box::after {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
  width: 5px;
  height: 5px;
  background: var(--ion-cyan);
  transform: rotate(45deg);
}

/* 反馈面板 */

.page-disclaimer .usage-feedback {
  align-items: start;
  margin-top: 4px;
}

.page-disclaimer .usage-feedback .gx-panel__title {
  font-size: 16px;
}

.page-disclaimer .usage-feedback .gx-kv {
  gap: 10px 16px;
}

.page-disclaimer .usage-feedback .gx-text {
  font-size: 15px;
  line-height: 1.75;
}

.page-disclaimer .usage-feedback .gx-mono {
  color: var(--ion-cyan);
  font-size: 13px;
  letter-spacing: .04em;
  word-break: break-all;
}

/* 版本轨道 */

.page-disclaimer .usage-rail {
  margin: 2px 0 0;
}

.page-disclaimer .usage-rail .gx-rail__time {
  color: var(--nebula-purple);
  font-size: 13px;
}

.page-disclaimer .usage-rail .gx-rail__body {
  font-size: 15px;
  line-height: 1.75;
  color: var(--mist);
}

/* ---------- 页尾问答 ---------- */

.page-disclaimer .usage-faq {
  padding: 52px 0 8px;
}

.page-disclaimer .usage-faq__list {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 26px;
  border-top: 1px solid var(--ud-line-soft);
}

.page-disclaimer .usage-faq__item {
  padding: 24px 0;
  border-bottom: 1px solid var(--ud-line-soft);
  max-width: 56em;
}

.page-disclaimer .usage-faq__item .gx-h3 {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 700;
  color: var(--starlight);
}

.page-disclaimer .usage-faq__item .gx-text {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--mist);
}

/* ---------- 响应式 ---------- */

@media (min-width: 900px) {
  .page-disclaimer .usage-step {
    padding: 60px 0;
  }

  .page-disclaimer .usage-step__grid {
    grid-template-columns: var(--ud-rail) minmax(0, 1fr);
    gap: 48px;
  }

  .page-disclaimer .usage-step__node {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
    height: 100%;
    padding-left: 2px;
  }

  .page-disclaimer .usage-step__node::after {
    content: "";
    position: absolute;
    left: calc(var(--ud-node) / 2);
    top: calc(var(--ud-node) + 34px);
    bottom: 0;
    width: 1px;
    background: linear-gradient(180deg,
      rgba(34, 224, 214, .70) 0%,
      rgba(122, 77, 255, .38) 52%,
      rgba(122, 77, 255, 0) 100%);
  }

  .page-disclaimer .usage-step--end .usage-step__node::after {
    display: none;
  }

  .page-disclaimer .usage-step__title {
    font-size: 24px;
  }
}

@media (min-width: 1200px) {
  .page-disclaimer .usage-hero {
    padding-top: 40px;
  }

  .page-disclaimer .usage-step {
    padding: 72px 0;
  }

  .page-disclaimer .usage-step__grid {
    gap: 64px;
  }

  .page-disclaimer .usage-step__title {
    font-size: 26px;
  }
}

@media (max-width: 899px) {
  .page-disclaimer .usage-step__num {
    width: 44px;
    height: 44px;
    font-size: 16px;
  }

  .page-disclaimer .usage-banner {
    clip-path: var(--cut-xs);
  }

  .page-disclaimer .usage-cite {
    font-size: 12px;
    padding: 14px 14px;
  }

  .page-disclaimer .usage-cite__line {
    white-space: normal;
  }

  .page-disclaimer .usage-feedback .gx-mono {
    word-break: break-all;
  }
}