.page-disclaimer {
  position: relative;
  background-color: var(--c-cream);
  color: var(--c-ink);
}

/* ===== 首屏刊头区 ===== */
.page-disclaimer__hero {
  position: relative;
  overflow: hidden;
  padding: var(--space-5) 0 var(--space-5);
  background:
    linear-gradient(135deg, rgba(201, 162, 39, 0.14) 0%, rgba(22, 50, 79, 0) 46%),
    linear-gradient(180deg, var(--c-deep) 0%, var(--c-royal) 100%);
  color: var(--c-cream);
}

.page-disclaimer__hero::after {
  content: '';
  position: absolute;
  top: 28px;
  right: var(--pad-inline);
  width: 108px;
  height: 108px;
  opacity: 0.16;
  background:
    linear-gradient(135deg, var(--c-gold) 25%, transparent 25%),
    linear-gradient(225deg, var(--c-gold) 25%, transparent 25%),
    linear-gradient(315deg, var(--c-gold) 25%, transparent 25%),
    linear-gradient(45deg, var(--c-gold) 25%, transparent 25%);
  background-size: 24px 24px;
  background-position: 0 0, 12px 0, 12px -12px, 0 12px;
  pointer-events: none;
}

.page-disclaimer__hero .breadcrumb__link {
  color: var(--c-gold-bright);
  text-decoration: none;
  transition: color var(--dur-fast) var(--ease);
}
.page-disclaimer__hero .breadcrumb__link:hover,
.page-disclaimer__hero .breadcrumb__link:focus-visible {
  color: var(--c-cream);
}
.page-disclaimer__hero .breadcrumb__sep {
  color: var(--c-gold);
}
.page-disclaimer__hero .breadcrumb__current {
  color: var(--c-cream);
}

.page-disclaimer__hero-grid {
  padding-top: var(--space-5);
}

.page-disclaimer__hero-heading h1 {
  margin: var(--space-3) 0 0;
  font-family: var(--font-serif);
  font-size: var(--fs-2xl);
  line-height: 1.16;
  color: var(--c-cream);
}

.page-disclaimer__lead {
  margin-top: var(--space-5);
  max-width: 62ch;
  font-size: var(--fs-md);
  line-height: 1.75;
  color: var(--c-jade);
}

.page-disclaimer__hero-foot {
  padding-top: var(--space-2);
}

.page-disclaimer__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-5);
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid rgba(201, 162, 39, 0.55);
}

.page-disclaimer__meta span {
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: 0.06em;
  color: var(--c-gold-bright);
}

.page-disclaimer__progress {
  margin: var(--space-5) 0 0;
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  color: var(--c-jade);
}

.page-disclaimer__progress::before {
  content: '';
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: var(--space-2);
  background: var(--c-gold);
  transform: rotate(45deg);
}

/* ===== 步骤索引 ===== */
.page-disclaimer__quicknav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  padding: var(--space-5) 0;
  border-bottom: 1px solid rgba(201, 162, 39, 0.3);
}

.page-disclaimer__quicknav a {
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  line-height: 1.5;
  color: var(--c-royal);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition:
    color var(--dur-fast) var(--ease),
    border-color var(--dur-fast) var(--ease);
}

.page-disclaimer__quicknav a:hover {
  color: var(--c-gold);
  border-bottom-color: var(--c-gold);
}

.page-disclaimer__quicknav a:focus-visible {
  outline: 2px solid var(--c-gold);
  outline-offset: 4px;
}

/* ===== 操作手册主体 ===== */
.page-disclaimer__manual {
  position: relative;
  padding: var(--space-6) 0 var(--space-8);
  background-image:
    linear-gradient(to right, rgba(22, 50, 79, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(22, 50, 79, 0.05) 1px, transparent 1px);
  background-size: 32px 32px;
}

.page-disclaimer__step {
  position: relative;
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  column-gap: var(--space-4);
  padding-bottom: var(--space-6);
  margin-bottom: var(--space-6);
}

.page-disclaimer__step:not(:last-child)::before {
  content: '';
  position: absolute;
  left: 21px;
  top: 42px;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, rgba(201, 162, 39, 0.65), rgba(201, 162, 39, 0.18));
}

.page-disclaimer__step:last-child {
  margin-bottom: 0;
}

.page-disclaimer__step-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: var(--fs-md);
  color: var(--c-gold);
  background: var(--c-deep);
  border: 1px solid var(--c-gold);
  box-shadow: 4px 4px 0 rgba(201, 162, 39, 0.4);
}

.page-disclaimer__step:nth-of-type(even) .page-disclaimer__step-num {
  color: var(--c-cinnabar);
  border-color: var(--c-cinnabar);
  box-shadow: 4px 4px 0 rgba(166, 58, 43, 0.35);
}

.page-disclaimer__step-main {
  min-width: 0;
}

.page-disclaimer__step-main h2 {
  position: relative;
  margin: 0 0 var(--space-3);
  padding-bottom: var(--space-2);
  font-family: var(--font-serif);
  font-size: var(--fs-lg);
  line-height: 1.35;
  color: var(--c-deep);
}

.page-disclaimer__step-main h2::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 52px;
  height: 3px;
  background: linear-gradient(90deg, var(--c-gold), var(--c-cinnabar));
}

.page-disclaimer__step-desc {
  margin: var(--space-3) 0 var(--space-4);
  font-size: var(--fs-md);
  line-height: 1.75;
  color: var(--c-ink);
}

/* ===== 清单 ===== */
.page-disclaimer__list {
  margin: var(--space-4) 0 0;
  padding: 0;
  list-style: none;
}

.page-disclaimer__list li {
  position: relative;
  padding-left: var(--space-5);
  margin-bottom: var(--space-3);
  line-height: 1.7;
}

.page-disclaimer__list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 6px;
  height: 6px;
  background: linear-gradient(135deg, var(--c-gold), var(--c-cinnabar));
  transform: rotate(45deg);
}

.page-disclaimer__list--ordered {
  counter-reset: manual-step;
}

.page-disclaimer__list--ordered li {
  counter-increment: manual-step;
}

.page-disclaimer__list--ordered li::before {
  content: counter(manual-step) ".";
  top: 0;
  left: 0;
  width: auto;
  height: auto;
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--c-gold);
  background: none;
  transform: none;
}

/* ===== 注释与结果 ===== */
.page-disclaimer__note {
  margin: var(--space-4) 0 0;
  padding-left: var(--space-3);
  border-left: 3px solid var(--c-gold);
  font-size: var(--fs-sm);
  line-height: 1.7;
  color: var(--c-royal);
}

.page-disclaimer__result {
  margin: var(--space-5) 0 0;
  padding: var(--space-3) var(--space-4);
  max-width: 640px;
  border-left: 3px solid var(--c-gold);
  background: rgba(201, 162, 39, 0.1);
  font-family: var(--font-mono);
  font-size: var(--fs-sm);
  line-height: 1.65;
  color: var(--c-deep);
}

/* ===== 配图 ===== */
.page-disclaimer__visual {
  margin: var(--space-5) 0 0;
}

.page-disclaimer__visual img {
  display: block;
  width: 100%;
  max-width: 480px;
  height: auto;
  background: var(--c-stone);
  object-fit: cover;
}

.page-disclaimer__visual--small img {
  max-width: 360px;
}

.page-disclaimer__visual figcaption {
  max-width: 480px;
  margin-top: var(--space-2);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid rgba(201, 162, 39, 0.5);
  font-size: var(--fs-sm);
  color: var(--c-royal);
}

/* ===== 桌面端 ===== */
@media (min-width: 800px) {
  .page-disclaimer__hero {
    padding: var(--space-6) 0 var(--space-7);
  }

  .page-disclaimer__hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    column-gap: var(--space-7);
    align-items: end;
  }

  .page-disclaimer__hero-heading h1 {
    font-size: var(--fs-2xl);
  }

  .page-disclaimer__lead {
    margin-top: 0;
    margin-bottom: var(--space-2);
  }

  .page-disclaimer__hero-foot {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: var(--space-6);
  }

  .page-disclaimer__meta {
    margin-top: var(--space-6);
  }

  .page-disclaimer__progress {
    margin-top: var(--space-5);
    text-align: right;
    flex-shrink: 0;
  }

  .page-disclaimer__quicknav {
    justify-content: flex-end;
    border-bottom: 1px solid rgba(201, 162, 39, 0.3);
  }

  .page-disclaimer__manual {
    padding-top: var(--space-7);
  }

  .page-disclaimer__step {
    grid-template-columns: 96px minmax(0, 1fr);
    column-gap: var(--space-6);
    padding-bottom: var(--space-7);
    margin-bottom: var(--space-7);
  }

  .page-disclaimer__step:not(:last-child)::before {
    left: 35px;
    top: 74px;
  }

  .page-disclaimer__step-num {
    width: 72px;
    height: 72px;
    font-size: var(--fs-2xl);
  }

  .page-disclaimer__step-main {
    max-width: 860px;
  }

  .page-disclaimer__step-main h2 {
    font-size: var(--fs-xl);
    margin-bottom: var(--space-4);
  }
}