/* ===== 使用说明页 · /usage/ ===== */
.page-disclaimer {
  --uc-rail-w: 206px;
  color: var(--text);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */
.page-disclaimer .uc-hero {
  position: relative;
  padding: clamp(30px, 6vw, 74px) 0 clamp(26px, 4vw, 48px);
  border-bottom: 1px solid var(--line);
}
.page-disclaimer .uc-hero::after {
  content: "";
  position: absolute;
  top: -150px;
  right: -90px;
  width: 440px;
  height: 440px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(43, 227, 210, 0.16), transparent 66%);
  pointer-events: none;
  z-index: 0;
}
.page-disclaimer .uc-hero > .wrap {
  position: relative;
  z-index: 1;
}

.page-disclaimer .uc-crumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
}
.page-disclaimer .uc-crumbs a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease);
}
.page-disclaimer .uc-crumbs a:hover,
.page-disclaimer .uc-crumbs a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}
.page-disclaimer .uc-crumbs li[aria-current="page"] {
  color: var(--text);
}

.page-disclaimer .uc-hero__mark {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--cyan);
}
.page-disclaimer .uc-hero__title {
  margin: 0;
  font-size: clamp(32px, 7vw, 66px);
  line-height: 1.07;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.page-disclaimer .uc-hero__lede {
  margin: 20px 0 0;
  max-width: 64ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.8;
  color: var(--muted-soft);
}

/* ---------- 外壳：左侧小节索引 + 右侧条文 ---------- */
.page-disclaimer .uc-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
}

.page-disclaimer .uc-rail {
  padding: 22px 0 20px;
  border-bottom: 1px solid var(--line);
}
.page-disclaimer .uc-rail__label {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--muted);
}
.page-disclaimer .uc-rail__list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-disclaimer .uc-rail__link {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.4;
  text-decoration: none;
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease), background var(--t) var(--ease);
}
.page-disclaimer .uc-rail__link:hover,
.page-disclaimer .uc-rail__link:focus-visible {
  color: var(--text);
  border-color: var(--cyan);
  background: var(--glass);
}
.page-disclaimer .uc-rail__num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
}

.page-disclaimer .uc-body {
  padding-bottom: clamp(40px, 6vw, 80px);
}

/* ---------- 小节 ---------- */
.page-disclaimer .uc-sec {
  padding: clamp(28px, 4vw, 52px) 0 clamp(24px, 3.5vw, 42px);
  border-bottom: 1px solid var(--line);
  scroll-margin-top: 150px;
}
.page-disclaimer .uc-sec:last-of-type {
  border-bottom: 0;
}
.page-disclaimer .uc-sec__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.2em;
  color: var(--amber);
}
.page-disclaimer .uc-sec__title {
  margin: 10px 0 0;
  font-size: clamp(21px, 2.6vw, 30px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.22;
}
.page-disclaimer .uc-sec__lede {
  margin: 10px 0 0;
  max-width: 60ch;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 条文列表 ---------- */
.page-disclaimer .uc-rules {
  margin: clamp(16px, 2.4vw, 26px) 0 0;
  padding: 0;
  list-style: none;
}
.page-disclaimer .uc-rule {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 3px;
  padding: 14px 10px 14px 8px;
  border-top: 1px solid var(--line);
  transition: background var(--t) var(--ease);
}
.page-disclaimer .uc-rule:hover {
  background: var(--glass);
}
.page-disclaimer .uc-rule__num {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  transition: color var(--t) var(--ease);
}
.page-disclaimer .uc-rule:hover .uc-rule__num {
  color: var(--amber);
}
.page-disclaimer .uc-rule__text {
  margin: 0;
  max-width: 76ch;
  font-size: 14.8px;
  line-height: 1.78;
  color: var(--muted-soft);
}
.page-disclaimer .uc-rule__text strong {
  color: var(--text);
  font-weight: 600;
}
.page-disclaimer .uc-rule__text .mono {
  font-family: var(--font-mono);
  font-size: 0.94em;
  color: var(--text);
}

/* ---------- 关系图 ---------- */
.page-disclaimer .uc-media {
  margin: clamp(22px, 3vw, 34px) 0 0;
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
  background: linear-gradient(150deg, rgba(43, 227, 210, 0.10), rgba(255, 179, 82, 0.07));
}
.page-disclaimer .uc-media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
}
.page-disclaimer .uc-media__cap {
  margin: 0;
  padding: 10px 14px;
  border-top: 1px solid var(--line);
  background: var(--ink);
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--muted);
}

/* ---------- 路径图 ---------- */
.page-disclaimer .uc-path {
  display: grid;
  gap: 14px;
  margin: clamp(22px, 3vw, 32px) 0 0;
  padding: clamp(16px, 2.6vw, 26px);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: var(--glass);
}
.page-disclaimer .uc-path__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}
.page-disclaimer .uc-path__node {
  position: relative;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: rgba(14, 24, 54, 0.72);
  font-size: 13px;
  font-weight: 600;
  color: var(--text);
  transition: border-color var(--t) var(--ease), color var(--t) var(--ease);
}
.page-disclaimer .uc-path__node--end {
  border-color: var(--cyan);
  color: var(--cyan);
}
.page-disclaimer .uc-path__node:hover::after {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.page-disclaimer .uc-path__node::after {
  content: attr(data-note);
  position: absolute;
  left: 50%;
  bottom: calc(100% + 10px);
  width: max-content;
  max-width: 230px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: var(--ink);
  color: var(--muted-soft);
  font-size: 12px;
  font-weight: 400;
  line-height: 1.6;
  transform: translateX(-50%) translateY(4px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--t) var(--ease), transform var(--t) var(--ease), visibility var(--t) var(--ease);
  z-index: 3;
}
.page-disclaimer .uc-path__arrow {
  position: relative;
  flex: 0 0 auto;
  width: 24px;
  height: 1px;
  background: linear-gradient(90deg, var(--cyan), rgba(43, 227, 210, 0.15));
}
.page-disclaimer .uc-path__arrow::after {
  content: "";
  position: absolute;
  right: 0;
  top: -3px;
  width: 7px;
  height: 7px;
  border-top: 1px solid var(--cyan);
  border-right: 1px solid var(--cyan);
  transform: rotate(45deg);
}

/* ---------- 收束条 ---------- */
.page-disclaimer .uc-footbar {
  display: grid;
  gap: 16px;
  margin-top: clamp(28px, 4vw, 46px);
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--line);
  border-left: 3px solid var(--amber);
  border-radius: var(--r-md);
  background: linear-gradient(100deg, rgba(255, 179, 82, 0.10), rgba(43, 227, 210, 0.07));
}
.page-disclaimer .uc-footbar__title {
  margin: 0;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text);
}
.page-disclaimer .uc-footbar__note {
  margin: 8px 0 0;
  max-width: 60ch;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--muted-soft);
}
.page-disclaimer .uc-footbar__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-disclaimer .uc-rule {
    grid-template-columns: 62px minmax(0, 1fr);
    gap: 6px 16px;
    padding: 15px 12px 15px 8px;
  }
  .page-disclaimer .uc-rule__num {
    padding-top: 4px;
  }
}

@media (min-width: 760px) {
  .page-disclaimer .uc-footbar {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    column-gap: 26px;
  }
  .page-disclaimer .uc-path__row {
    flex-wrap: nowrap;
  }
}

@media (min-width: 1000px) {
  .page-disclaimer .uc-shell {
    grid-template-columns: var(--uc-rail-w) minmax(0, 1fr);
    column-gap: clamp(34px, 4vw, 72px);
  }
  .page-disclaimer .uc-rail {
    position: sticky;
    top: 136px;
    padding: 56px 22px 60px 0;
    border-bottom: 0;
    border-right: 1px solid var(--line);
  }
  .page-disclaimer .uc-rail__list {
    flex-direction: column;
    gap: 0;
  }
  .page-disclaimer .uc-rail__link {
    padding: 10px 0 10px 14px;
    border: 0;
    border-left: 2px solid var(--line);
    border-radius: 0;
    line-height: 1.5;
    transition: color var(--t) var(--ease), border-color var(--t) var(--ease);
  }
  .page-disclaimer .uc-rail__link:hover,
  .page-disclaimer .uc-rail__link:focus-visible {
    color: var(--text);
    border-left-color: var(--amber);
    background: transparent;
  }
  .page-disclaimer .uc-body {
    padding-top: 14px;
  }
}
<<<END>>>