.page-disclaimer {
  --pd-bg: var(--c-light, #F8F9FA);
  --pd-card-bg: #ffffff;
  --pd-border-color: var(--c-secondary, #C0C0C0);
  --pd-accent-line: var(--c-primary, #E63946);
  --pd-num-color: var(--c-primary, #E63946);
  --pd-hover-accent: var(--c-accent, #39FF14);
  --pd-text-dark: var(--c-dark, #2B2D42);
  --pd-shadow: 0 2px 8px rgba(43,45,66,0.08);

  max-width: var(--max-width, 1200px);
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  color: var(--pd-text-dark);
  background: var(--pd-bg);
}

/* ---------- 面包屑 ---------- */
.page-disclaimer .breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: var(--scale-small, 0.875rem);
  color: var(--c-secondary, #C0C0C0);
  margin-bottom: 1rem;
  letter-spacing: 0.02em;
}
.page-disclaimer .breadcrumb a {
  color: var(--c-secondary, #C0C0C0);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s, color 0.2s;
}
.page-disclaimer .breadcrumb a:hover,
.page-disclaimer .breadcrumb a:focus {
  color: var(--c-primary, #E63946);
  border-color: var(--c-primary, #E63946);
}
.page-disclaimer .breadcrumb-sep {
  user-select: none;
  color: var(--c-secondary, #C0C0C0);
}

/* ---------- 页面标题 ---------- */
.page-disclaimer h1 {
  font-family: var(--font-head, 'Inter', sans-serif);
  font-size: var(--scale-h1, 2.5rem);
  font-weight: 800;
  line-height: 1.15;
  margin: 0 0 0.5rem;
  padding-left: 0.75rem;
  border-left: 6px solid var(--pd-accent-line);
  color: var(--pd-text-dark);
  letter-spacing: -0.01em;
}
.page-disclaimer .page-desc {
  font-size: var(--scale-body, 1rem);
  line-height: 1.6;
  color: var(--c-dark, #2B2D42);
  opacity: 0.85;
  margin: 0 0 2.5rem;
  padding-left: calc(0.75rem + 6px);
  max-width: 680px;
}

/* ---------- 步骤网格 ---------- */
.page-disclaimer .steps-grid {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* ---------- 步骤块 ---------- */
.page-disclaimer .step-block {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  background: var(--pd-card-bg);
  border-left: 4px solid var(--pd-accent-line);
  padding: 1.5rem 1.25rem;
  border-radius: 0 4px 4px 0;
  box-shadow: var(--pd-shadow);
  transition: border-left-color 0.25s ease, box-shadow 0.25s ease;
  position: relative;
}
.page-disclaimer .step-block:hover,
.page-disclaimer .step-block:focus-within {
  border-left-color: var(--pd-hover-accent);
  box-shadow: 0 4px 16px rgba(57,255,20,0.12);
}

/* 步骤编号 */
.page-disclaimer .step-number {
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  font-size: 2.8rem;
  font-weight: 700;
  line-height: 1;
  color: var(--pd-num-color);
  letter-spacing: -0.03em;
  user-select: none;
  flex-shrink: 0;
  position: relative;
}
.page-disclaimer .step-number::after {
  content: '';
  display: block;
  width: 2rem;
  height: 3px;
  background: var(--gradient-red, linear-gradient(135deg, #E63946, #FF6B6B));
  margin-top: 0.25rem;
  border-radius: 2px;
}

/* 步骤内容 */
.page-disclaimer .step-content h2 {
  font-family: var(--font-head, 'Inter', sans-serif);
  font-size: var(--scale-h2, 2rem);
  font-weight: 700;
  margin: 0 0 0.75rem;
  color: var(--pd-text-dark);
  line-height: 1.2;
}
.page-disclaimer .step-content p {
  font-size: var(--scale-body, 1rem);
  line-height: 1.7;
  color: var(--pd-text-dark);
  opacity: 0.9;
  margin: 0 0 1rem;
  max-width: 72ch;
}

/* ---------- 图片 ---------- */
.page-disclaimer .step-figure {
  margin: 0;
  padding: 0;
  display: inline-block;
  max-width: 100%;
  border: 1px solid var(--pd-border-color);
  border-radius: 4px;
  overflow: hidden;
  background: var(--c-light, #F8F9FA);
  transition: border-color 0.2s;
}
.page-disclaimer .step-block:hover .step-figure {
  border-color: var(--pd-hover-accent);
}
.page-disclaimer .step-figure img {
  display: block;
  max-width: 100%;
  height: auto;
  object-fit: contain;
  background: var(--c-light, #F8F9FA);
}
.page-disclaimer .step-figure figcaption {
  font-size: var(--scale-small, 0.875rem);
  color: var(--c-dark, #2B2D42);
  opacity: 0.7;
  padding: 0.4rem 0.6rem;
  border-top: 1px solid var(--pd-border-color);
  font-family: var(--font-mono, 'JetBrains Mono', monospace);
  letter-spacing: 0.02em;
}

/* ---------- 帮助链接 ---------- */
.page-disclaimer .help-links {
  margin-top: 3rem;
  padding: 1.5rem 1.25rem;
  background: var(--gradient-silver, linear-gradient(135deg, #C0C0C0, #E0E0E0));
  border-radius: 4px;
  box-shadow: var(--pd-shadow);
}
.page-disclaimer .help-links h2 {
  font-family: var(--font-head, 'Inter', sans-serif);
  font-size: var(--scale-h3, 1.5rem);
  font-weight: 700;
  margin: 0 0 0.75rem;
  color: var(--pd-text-dark);
}
.page-disclaimer .help-links ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
}
.page-disclaimer .help-links li {
  margin: 0;
}
.page-disclaimer .help-links a {
  color: var(--c-primary, #E63946);
  text-decoration: none;
  font-weight: 600;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s, color 0.2s;
  padding-bottom: 2px;
}
.page-disclaimer .help-links a:hover,
.page-disclaimer .help-links a:focus {
  color: var(--pd-hover-accent);
  border-color: var(--pd-hover-accent);
}

/* ========== 桌面 ≥768px ========== */
@media (min-width: 768px) {
  .page-disclaimer {
    padding: 2rem 2rem 4rem;
  }

  .page-disclaimer .step-block {
    display: grid;
    grid-template-columns: 80px 1fr;
    gap: 1.5rem 2rem;
    padding: 2rem 2rem 2rem 1.5rem;
    align-items: start;
  }

  /* 偶数块：编号列换到右侧 */
  .page-disclaimer .step-block:nth-child(even) {
    grid-template-columns: 1fr 80px;
    border-left: none;
    border-right: 4px solid var(--pd-accent-line);
    border-radius: 4px 0 0 4px;
    padding: 2rem 1.5rem 2rem 2rem;
  }
  .page-disclaimer .step-block:nth-child(even):hover,
  .page-disclaimer .step-block:nth-child(even):focus-within {
    border-right-color: var(--pd-hover-accent);
  }
  .page-disclaimer .step-block:nth-child(even) .step-number {
    order: 2;
    text-align: right;
  }
  .page-disclaimer .step-block:nth-child(even) .step-number::after {
    margin-left: auto;
  }
  .page-disclaimer .step-block:nth-child(even) .step-content {
    order: 1;
  }

  .page-disclaimer .step-number {
    font-size: 3.6rem;
    padding-top: 0.1rem;
  }

  .page-disclaimer .step-content h2 {
    margin-top: 0;
  }

  .page-disclaimer .step-figure {
    max-width: 85%;
  }

  .page-disclaimer .help-links {
    padding: 2rem 2rem;
  }
}

/* ========== 桌面 ≥1024px ========== */
@media (min-width: 1024px) {
  .page-disclaimer {
    padding: 3rem 2.5rem 5rem;
  }

  .page-disclaimer .step-block {
    grid-template-columns: 100px 1fr;
    gap: 2rem 2.5rem;
    padding: 2.5rem 2.5rem 2.5rem 2rem;
  }
  .page-disclaimer .step-block:nth-child(even) {
    grid-template-columns: 1fr 100px;
    padding: 2.5rem 2rem 2.5rem 2.5rem;
  }

  .page-disclaimer .step-number {
    font-size: 4.2rem;
  }

  .page-disclaimer .step-content p {
    font-size: 1.05rem;
  }

  .page-disclaimer .step-figure {
    max-width: 75%;
  }
}