/*
 * 本文件用于给工具目录下的文章页提供排版：顶部的位置导航、正文、表格、去工具的按钮和相关文章。
 * 配色、字体和页面宽度来自 /shared/base.css，这里只放文章页自己用的样式。
 */

.article-topbar {
  position: sticky;
  top: 0;
  z-index: 2;
  border-bottom: 1px solid var(--color-border);
  background: color-mix(in srgb, var(--color-bg) 92%, transparent);
  backdrop-filter: blur(8px);
}

.article-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  column-gap: 6px;
  min-height: var(--tap-min);
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--color-text-muted);
  font-size: 14px;
}

.article-breadcrumb li + li::before {
  content: "›";
  margin-right: 6px;
}

.article-breadcrumb a {
  display: inline-flex;
  align-items: center;
  min-height: var(--tap-min);
  text-decoration: none;
}

.article-breadcrumb a:hover {
  color: var(--color-text);
  text-decoration: underline;
}

/* 正文限宽，中文一行四十来个字最好读 */
.article {
  max-width: 44em;
  padding-block: 24px 48px;
}

.article h1 {
  margin: 0;
  font-size: clamp(24px, 6vw, 32px);
  line-height: 1.3;
}

.article-meta {
  margin: 8px 0 0;
  color: var(--color-text-muted);
  font-size: 14px;
}

.article-lead {
  margin: 16px 0 0;
  font-size: 17px;
}

.article h2 {
  margin: 40px 0 12px;
  font-size: 21px;
  line-height: 1.4;
}

.article h3 {
  margin: 28px 0 8px;
  font-size: 17px;
}

.article p,
.article ul,
.article ol {
  margin: 0 0 12px;
}

.article ul,
.article ol {
  padding-left: 1.5em;
}

.article li + li {
  margin-top: 6px;
}

.article-note {
  color: var(--color-text-muted);
  font-size: 14px;
}

/* 去工具的按钮：整块可点，放在导语下面和文末，不用翻到底就能找到 */
.article-cta {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin: 24px 0;
  padding: 14px 16px;
  border: 1px solid color-mix(in srgb, var(--color-accent) 40%, var(--color-border));
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--color-accent) 8%, var(--color-surface));
  text-decoration: none;
}

.article-cta:hover {
  border-color: var(--color-accent);
}

.article-cta-title {
  color: var(--color-accent);
  font-weight: 600;
}

.article-cta-title::after {
  content: " →";
}

.article-cta-text {
  color: var(--color-text-muted);
  font-size: 14px;
}

/* 表格比屏幕宽时只在表格这一块横向滚动，页面本身不出现横向滚动 */
.table-scroll {
  margin: 0 0 16px;
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
}

.table-scroll table {
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
  font-variant-numeric: tabular-nums;
}

.table-scroll caption {
  padding: 10px 12px 0;
  color: var(--color-text-muted);
  font-size: 14px;
  text-align: left;
}

.table-scroll th,
.table-scroll td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  white-space: nowrap;
}

/* 宽表横向滚动时，行首那一格固定在左边，滚到哪都知道是哪一行 */
.table-scroll tbody th {
  position: sticky;
  left: 0;
  background: var(--color-surface);
  font-weight: 600;
}

.table-scroll thead th {
  color: var(--color-text-muted);
  font-size: 14px;
  font-weight: 600;
}

.table-scroll tbody tr:last-child > * {
  border-bottom: 0;
}

.article-related {
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
}

.article-related h2 {
  margin-top: 0;
  font-size: 17px;
}

.article-related ul {
  padding: 0;
  list-style: none;
}

.article-related li + li {
  margin-top: 0;
}

.article-related a {
  display: flex;
  align-items: center;
  min-height: var(--tap-min);
}

.article-footer {
  padding-block: 24px 32px;
  color: var(--color-text-muted);
  font-size: 13px;
  text-align: center;
}

.article-footer a {
  text-decoration: none;
}