/* ========== 页面专属样式：使用说明 /instructions/ ========== */
.page-disclaimer {
  --pg-gap: 1.25rem;
  --pg-border-w: 2px;
  --pg-shadow: 6px 6px 0 rgba(193, 122, 94, 0.2);
  --pg-shadow-lg: 10px 10px 0 rgba(193, 122, 94, 0.28);
  background: var(--paper);
  color: var(--ink);
  overflow-x: hidden;
}

/* ---- 页首：00 大编号 + 导语 ---- */
.page-disclaimer .pg-masthead {
  padding: calc(var(--header-h) + 3.25rem) 0 3.5rem;
  background:
    radial-gradient(circle at 16% 20%, rgba(201, 162, 75, 0.14) 0, transparent 20rem),
    radial-gradient(circle at 88% 0%, rgba(210, 105, 30, 0.08) 0, transparent 16rem),
    var(--paper);
  border-bottom: var(--pg-border-w) solid var(--gold);
}
.page-disclaimer .pg-masthead .breadcrumb {
  margin-bottom: 2rem;
}
.page-disclaimer .pg-masthead__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  align-items: start;
}
.page-disclaimer .pg-masthead__index {
  font: 700 4.5rem/0.9 var(--font-heading);
  letter-spacing: -0.05em;
  color: var(--gold);
  padding-left: 0;
}
.page-disclaimer .pg-masthead__content {
  max-width: 64ch;
}
.page-disclaimer .pg-masthead__content .eyebrow {
  margin-bottom: 0.75rem;
}
.page-disclaimer .pg-masthead__content h1.display-title {
  margin: 0 0 1.25rem;
}
.page-disclaimer .pg-masthead__content .preamble {
  margin: 0;
  font-size: 1.05rem;
}

/* ---- 深蓝快速索引条 ---- */
.page-disclaimer .pg-index {
  background: var(--depth);
  border-bottom: var(--pg-border-w) solid var(--gold);
}
.page-disclaimer .pg-index__line {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1.75rem;
  justify-content: center;
  padding: 1.1rem 0;
}
.page-disclaimer .pg-index__item {
  font: 500 0.95rem/1 var(--font-heading);
  color: var(--gold);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0;
  border-bottom: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.page-disclaimer .pg-index__item span {
  color: var(--ember);
  font-weight: 700;
}
.page-disclaimer .pg-index__item:hover,
.page-disclaimer .pg-index__item:focus-visible {
  color: var(--light);
  border-bottom-color: var(--ember);
}

/* ---- 章节通用 ---- */
.page-disclaimer .pg-chapter,
.page-disclaimer .pg-copyright,
.page-disclaimer .pg-liability,
.page-disclaimer .pg-updates {
  padding: 4rem 0;
}
.page-disclaimer .chapter-head {
  margin-bottom: 0.5rem;
}
.page-disclaimer .pg-chapter__intro {
  font: 400 1.05rem/1.9 var(--font-body);
  color: var(--slate);
  max-width: 62ch;
  margin: 1.25rem 0 2.25rem;
}

/* ---- 01 内容使用许可：步骤卡片 ---- */
.page-disclaimer .pg-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--pg-gap);
}
.page-disclaimer .pg-step {
  position: relative;
  border: var(--pg-border-w) solid var(--terra);
  background: var(--light);
  box-shadow: var(--pg-shadow);
  padding: 1.5rem 1.35rem;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}
.page-disclaimer .pg-step:hover,
.page-disclaimer .pg-step:focus-within {
  transform: translateY(-3px);
  box-shadow: var(--pg-shadow-lg);
  background: var(--paper);
}
.page-disclaimer .pg-step__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.5rem;
  height: 2.5rem;
  padding: 0 0.5rem;
  margin-bottom: 0.75rem;
  background: var(--depth);
  color: var(--gold);
  font: 700 1.25rem/1 var(--font-heading);
}
.page-disclaimer .pg-step h3 {
  font: 700 1.12rem/1.35 var(--font-heading);
  color: var(--depth);
  margin: 0 0 0.5rem;
}
.page-disclaimer .pg-step p {
  font: 400 0.94rem/1.8 var(--font-body);
  color: var(--slate);
  margin: 0;
}
.page-disclaimer .pg-step p a {
  color: var(--ember);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-disclaimer .pg-step p a:hover {
  color: var(--depth);
}

/* ---- 02 版权与商标 ---- */
.page-disclaimer .pg-copyright {
  border-top: 1px solid rgba(193, 122, 94, 0.35);
  border-bottom: var(--pg-border-w) solid var(--terra);
}
.page-disclaimer .pg-copyright__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}
.page-disclaimer .pg-copyright__main {
  max-width: 72ch;
}
.page-disclaimer .pg-legal-list {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}
.page-disclaimer .pg-legal-list li {
  position: relative;
  padding: 0.35rem 0 0.35rem 1.25rem;
  border-left: 3px solid var(--gold);
  background: var(--light);
  box-shadow: 3px 3px 0 rgba(74, 85, 104, 0.08);
  font: 400 0.95rem/1.85 var(--font-body);
  color: var(--ink);
}
.page-disclaimer .pg-legal-list a {
  color: var(--ember);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-disclaimer .pg-copyright__aside {
  display: flex;
  justify-content: center;
  align-items: center;
}
.page-disclaimer .pg-copyright__badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  width: 170px;
  height: 170px;
  border-radius: 50%;
  border: var(--pg-border-w) solid var(--gold);
  background: rgba(255, 255, 255, 0.65);
  box-shadow: var(--pg-shadow);
}
.page-disclaimer .pg-copyright__badge img {
  display: block;
  width: 80px;
  max-width: 80px;
  height: 80px;
  border-radius: 50%;
  object-fit: cover;
}
.page-disclaimer .pg-copyright__badge span {
  font: 700 0.68rem/1.2 var(--font-heading);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--depth);
}

/* ---- 03 免责条款 ---- */
.page-disclaimer .pg-liability {
  background: var(--depth);
  padding: 4.5rem 0;
}
.page-disclaimer .pg-liability .chapter-label {
  color: var(--gold);
}
.page-disclaimer .pg-liability .chapter-title {
  color: var(--light);
}
.page-disclaimer .pg-liability .pg-chapter__intro {
  color: rgba(245, 241, 232, 0.75);
}
.page-disclaimer .pg-liability__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 1.75rem;
}
.page-disclaimer .pg-liability-card {
  border: 1px solid rgba(201, 162, 75, 0.35);
  border-left: 4px solid var(--gold);
  background: rgba(255, 255, 255, 0.04);
  padding: 1.4rem 1.35rem;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.page-disclaimer .pg-liability-card:hover {
  border-color: rgba(201, 162, 75, 0.75);
  background: rgba(255, 255, 255, 0.07);
}
.page-disclaimer .pg-liability-card__tag {
  display: block;
  font: 700 0.8rem/1.2 var(--font-heading);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.6rem;
}
.page-disclaimer .pg-liability-card p {
  font: 400 0.94rem/ 1.85 var(--font-body);
  color: rgba(245, 241, 232, 0.86);
  margin: 0;
}

/* ---- 04 更新机制 ---- */
.page-disclaimer .pg-updates__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.25rem;
  margin-top: 1.5rem;
}
.page-disclaimer .pg-updates__copy p {
  font: 400 0.98rem/1.85 var(--font-body);
  color: var(--slate);
  margin: 0 0 1.25rem;
}
.page-disclaimer .pg-updates__copy ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.85rem;
}
.page-disclaimer .pg-updates__copy li {
  position: relative;
  padding-left: 1.6rem;
  font: 400 0.95rem/1.8 var(--font-body);
  color: var(--ink);
}
.page-disclaimer .pg-updates__copy li::before {
  content: "→";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--ember);
  font: 700 1rem/1.8 var(--font-heading);
}
.page-disclaimer .pg-updates__copy a {
  color: var(--ember);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.page-disclaimer .pg-updates__visual img {
  display: block;
  width: 100%;
  max-width: 800px;
  height: auto;
  border: var(--pg-border-w) solid var(--terra);
  box-shadow: var(--pg-shadow-lg);
}

/* 时间线：移动端为垂直虚线 */
.page-disclaimer .pg-updates__path {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 3rem;
  padding-left: 1.25rem;
  border-left: 3px dashed var(--terra);
}
.page-disclaimer .pg-updates__node {
  position: relative;
  padding-left: 1.5rem;
}
.page-disclaimer .pg-updates__node::before {
  content: "";
  position: absolute;
  left: calc(-1.25rem - 7px);
  top: 0.35rem;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--light);
  border: 3px solid var(--gold);
  box-shadow: 0 0 0 3px var(--paper);
}
.page-disclaimer .pg-updates__node--now::before {
  background: var(--ember);
  border-color: var(--gold);
}
.page-disclaimer .pg-updates__node-year {
  display: block;
  font: 700 0.82rem/1.2 var(--font-heading);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ember);
  margin-bottom: 0.4rem;
}
.page-disclaimer .pg-updates__node p {
  font: 400 0.92rem/1.7 var(--font-body);
  color: var(--slate);
  margin: 0;
}
.page-disclaimer .pg-updates__note {
  margin-top: 2.5rem;
  padding: 1.25rem 1.35rem;
  border: 1px solid rgba(107, 142, 107, 0.45);
  border-left: 4px solid var(--moss);
  background: rgba(107, 142, 107, 0.08);
}
.page-disclaimer .pg-updates__note p {
  font: 400 0.94rem/1.8 var(--font-body);
  color: var(--ink);
  margin: 0;
}
.page-disclaimer .pg-updates__note a {
  color: var(--ember);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---- 桌面端布局 ---- */
@media (min-width: 840px) {
  .page-disclaimer .pg-masthead__grid {
    grid-template-columns: 170px 1fr;
    gap: 2.5rem;
    align-items: end;
  }
  .page-disclaimer .pg-masthead__grid::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.25rem;
    bottom: 0.25rem;
    width: 4px;
    background: var(--gold);
  }
  .page-disclaimer .pg-masthead__index {
    font-size: 5.5rem;
    padding-left: 1rem;
  }

  .page-disclaimer .pg-steps {
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
  }
  .page-disclaimer .pg-step:not(:last-child)::after {
    content: "→";
    position: absolute;
    right: -1.5rem;
    top: 50%;
    transform: translateY(-50%);
    font: 700 1.4rem/1 var(--font-heading);
    color: var(--ember);
    background: var(--paper);
    padding: 0.2rem 0.15rem;
    z-index: 2;
    line-height: 1;
  }

  .page-disclaimer .pg-copyright__grid {
    grid-template-columns: 1.6fr 0.9fr;
    gap: 3rem;
  }

  .page-disclaimer .pg-liability__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
  }

  .page-disclaimer .pg-updates__grid {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
  }

  /* 时间线转为水平方向 */
  .page-disclaimer .pg-updates__path {
    grid-template-columns: repeat(4, 1fr);
    gap: 1.75rem;
    margin-top: 3.5rem;
    border-left: none;
    padding-left: 0;
    border-top: 3px solid var(--terra);
    padding-top: 0;
  }
  .page-disclaimer .pg-updates__node {
    padding: 2rem 0.25rem 0;
    border-left: none;
  }
  .page-disclaimer .pg-updates__node::before {
    left: 0.25rem;
    top: -10px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--light);
    border: 3px solid var(--gold);
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.6);
  }
  .page-disclaimer .pg-updates__node--now::before {
    background: var(--ember);
    border-color: var(--gold);
  }
}