/* 轻云视频解析 教程页共享样式（纯静态，无外部依赖） */
:root {
  --brand: #667eea;
  --brand-2: #764ba2;
  --text: #303133;
  --text-weak: #606266;
  --line: #ebeef5;
  --bg: #f5f6fa;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  padding: 0 16px 48px;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.75 -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
}

.wrap { max-width: 720px; margin: 0 auto; }

header.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  margin-bottom: 20px;
}

.brand {
  font-weight: 700;
  font-size: 18px;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-decoration: none;
}

header.top nav a {
  margin-left: 14px;
  font-size: 14px;
  color: var(--text-weak);
  text-decoration: none;
}

header.top nav a:hover { color: var(--brand); }

article {
  background: #fff;
  border-radius: 14px;
  padding: 22px 20px 26px;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.05);
}

h1 { font-size: 22px; line-height: 1.45; margin: 0 0 12px; }

h2 {
  font-size: 18px;
  margin: 28px 0 10px;
  padding-left: 10px;
  border-left: 4px solid var(--brand);
}

h3 { font-size: 16px; margin: 18px 0 6px; }

p, li { color: var(--text-weak); }

.lead {
  font-size: 15px;
  color: var(--text);
  background: linear-gradient(135deg, rgba(102, 126, 234, 0.08), rgba(118, 75, 162, 0.08));
  border-radius: 10px;
  padding: 12px 14px;
  margin: 0 0 8px;
}

ol, ul { padding-left: 22px; margin: 8px 0; }
li { margin: 6px 0; }

dl.faq { margin: 8px 0; }
dl.faq dt { font-weight: 600; color: var(--text); margin-top: 14px; }
dl.faq dd { margin: 4px 0 0; color: var(--text-weak); }

.cta {
  margin: 26px 0 6px;
  text-align: center;
}

.cta a {
  display: inline-block;
  padding: 12px 30px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: #fff;
  font-weight: 600;
  text-decoration: none;
  box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
}

.hint { font-size: 13px; color: #909399; text-align: center; margin-top: 8px; }

.related { margin-top: 30px; border-top: 1px solid var(--line); padding-top: 14px; }
.related h2 { border: none; padding: 0; font-size: 16px; margin: 0 0 8px; }
.related ul { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.related a {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 999px;
  background: #f2f3f5;
  color: var(--text-weak);
  font-size: 13px;
  text-decoration: none;
}
.related a:hover { background: rgba(102, 126, 234, 0.12); color: var(--brand); }

table { width: 100%; border-collapse: collapse; margin: 10px 0; font-size: 14px; }
th, td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; color: var(--text-weak); }
th { background: #fafafa; color: var(--text); }

/* 行内的链接 / 参数示例，如 video.weibo.com/show?fid=… */
code {
  padding: 1px 5px;
  border-radius: 4px;
  background: #f2f4f8;
  border: 1px solid var(--line);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 13px;
  color: var(--text);
  word-break: break-all;
}

footer.foot {
  max-width: 720px;
  margin: 22px auto 0;
  font-size: 13px;
  color: #a8abb2;
  text-align: center;
}
footer.foot a { color: #a8abb2; }