/* ===== 使用说明页 · 页面专属样式 ===== */
.page-disclaimer {
  padding-bottom: clamp(56px, 8vw, 104px);
}

.page-disclaimer .umi-breadcrumb {
  margin: clamp(18px, 2.6vw, 30px) 0 4px;
  font-size: 12px;
}

/* ---- 首屏 ---- */
.page-disclaimer .dc-hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: start;
  padding-block: clamp(10px, 2vw, 24px) clamp(28px, 4vw, 52px);
}

.page-disclaimer .dc-hero__title {
  font-size: clamp(34px, 5.4vw, 64px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--umi-deep);
  margin: clamp(10px, 1.6vw, 18px) 0 clamp(14px, 2vw, 22px);
  max-width: 13em;
}

.page-disclaimer .dc-hero__lead {
  max-width: 32em;
  color: var(--umi-ink);
}

.page-disclaimer .dc-jump {
  margin-top: clamp(22px, 3vw, 34px);
  padding-top: clamp(14px, 2vw, 20px);
  border-top: 2px dashed var(--umi-rule);
  display: grid;
  gap: 2px;
}

.page-disclaimer .dc-jump__item {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 7px 0;
  font-size: 14px;
  line-height: 1.6;
  color: var(--umi-ink);
  text-decoration: none;
  transition: color 150ms ease-out, transform 150ms ease-out;
}

.page-disclaimer .dc-jump__item:hover,
.page-disclaimer .dc-jump__item:focus-visible {
  color: var(--umi-teal-ink);
  transform: translateX(4px);
}

.page-disclaimer .dc-jump__item .umi-index {
  color: var(--umi-amber);
  flex: none;
}

.page-disclaimer .dc-hero__figure {
  margin: 0;
  border-radius: var(--umi-radius-lg);
  overflow: hidden;
  background: var(--umi-mist);
  border: 1px solid var(--umi-rule);
}

.page-disclaimer .dc-hero__figure img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
}

/* ---- 章节列表 ---- */
.page-disclaimer .dc-chapters {
  display: grid;
}

.page-disclaimer .dc-chapter {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(12px, 1.8vw, 18px);
  padding-block: clamp(28px, 4vw, 46px);
  scroll-margin-top: 120px;
}

.page-disclaimer .dc-chapter::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: var(--umi-stitch);
}

.page-disclaimer .dc-chapter__num {
  font-family: var(--umi-font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--umi-amber);
  margin: 0;
}

.page-disclaimer .dc-chapter__title {
  font-family: var(--umi-font-display);
  font-size: clamp(21px, 2.4vw, 28px);
  font-weight: 400;
  line-height: 1.36;
  letter-spacing: -0.01em;
  color: var(--umi-deep);
  margin: 0 0 clamp(12px, 1.6vw, 18px);
}

.page-disclaimer .dc-chapter__body p {
  margin: 0 0 1.05em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--umi-ink);
  max-width: 34em;
}

.page-disclaimer .dc-chapter__body p:last-child {
  margin-bottom: 0;
}

.page-disclaimer .dc-chapter__body a {
  color: var(--umi-teal-ink);
  text-decoration: none;
  padding-bottom: 2px;
  background-image: var(--umi-underline);
  background-repeat: repeat-x;
  background-position: left bottom;
  background-size: 100% 2px;
  transition: color 150ms ease-out;
}

.page-disclaimer .dc-chapter__body a:hover,
.page-disclaimer .dc-chapter__body a:focus-visible {
  color: var(--umi-amber);
}

.page-disclaimer .dc-chapter__aside {
  align-self: start;
  max-width: 24em;
  padding-left: clamp(12px, 1.6vw, 18px);
  border-left: 2px dashed var(--umi-rule);
  font-size: 13px;
  line-height: 1.72;
  color: var(--umi-ink-soft);
  margin: 0;
}

.page-disclaimer .dc-chapter__aside::before {
  content: "批注";
  display: block;
  font-family: var(--umi-font-mono);
  font-size: 10px;
  letter-spacing: 0.22em;
  color: var(--umi-red);
  margin-bottom: 6px;
}

/* ---- 短路径条 ---- */
.page-disclaimer .dc-shortpath {
  margin-top: clamp(28px, 4vw, 52px);
  padding: clamp(22px, 3vw, 36px);
  border-radius: var(--umi-radius-lg);
  background: var(--umi-mist);
  border: 1px solid var(--umi-rule);
  display: grid;
  gap: clamp(18px, 2.6vw, 30px);
}

.page-disclaimer .dc-shortpath__title {
  font-family: var(--umi-font-display);
  font-size: clamp(21px, 2.4vw, 27px);
  font-weight: 400;
  line-height: 1.36;
  color: var(--umi-deep);
  margin: 10px 0 10px;
}

.page-disclaimer .dc-shortpath__text p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--umi-ink);
  max-width: 30em;
}

.page-disclaimer .dc-shortpath__text .umi-eyebrow {
  margin: 0;
}

.page-disclaimer .dc-shortpath__actions {
  display: grid;
  gap: 12px;
  align-content: start;
}

.page-disclaimer .dc-shortpath__btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
  text-align: left;
  white-space: normal;
  font-size: 15px;
}

.page-disclaimer .dc-shortpath__hint {
  display: block;
  font-size: 12px;
  line-height: 1.55;
  letter-spacing: 0.01em;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 200ms ease-out, opacity 200ms ease-out, margin-top 200ms ease-out;
}

.page-disclaimer .umi-btn--primary .dc-shortpath__hint {
  color: rgba(247, 244, 236, 0.86);
}

.page-disclaimer .umi-btn--ghost .dc-shortpath__hint {
  color: var(--umi-ink-soft);
}

.page-disclaimer .dc-shortpath__btn:hover .dc-shortpath__hint,
.page-disclaimer .dc-shortpath__btn:focus-visible .dc-shortpath__hint {
  max-height: 4.5em;
  opacity: 1;
  margin-top: 5px;
}

/* ---- 桌面端布局 ---- */
@media (min-width: 720px) {
  .page-disclaimer .dc-shortpath {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    align-items: center;
  }

  .page-disclaimer .dc-shortpath__actions {
    grid-template-columns: 1fr 1fr;
  }
}

@media (min-width: 880px) {
  .page-disclaimer .dc-hero {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, 0.8fr);
    column-gap: clamp(28px, 4vw, 60px);
  }

  .page-disclaimer .dc-hero__figure {
    margin-top: clamp(14px, 3vw, 40px);
    transform: rotate(-0.9deg);
  }

  .page-disclaimer .dc-chapter {
    grid-template-columns: 54px minmax(0, 540px) minmax(0, 1fr);
    column-gap: clamp(20px, 3vw, 44px);
    align-items: start;
  }

  .page-disclaimer .dc-chapter__num {
    padding-top: 8px;
  }
}

/* ---- 无悬停设备：提示常驻可见 ---- */
@media (hover: none) {
  .page-disclaimer .dc-shortpath__hint {
    max-height: 4.5em;
    opacity: 1;
    margin-top: 5px;
  }
}

/* ---- 尊重减少动效 ---- */
@media (prefers-reduced-motion: reduce) {
  .page-disclaimer *,
  .page-disclaimer *::before,
  .page-disclaimer *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}