/*
   article.css — 文章页正文长读排版
   在 site.css 之后加载，复用其变量和字体族，只补正文排版所需的类。
   site.css 提供：变量(--ink/--ink-soft/--stamp/--border/--paper)、字体族、
   .page-shell / .topbar / .footer / .eyebrow / .button / .section / 卡片系统。
*/

/* ── 文章容器：窄于主站宽度，提升长读体验 ── */
.article {
  max-width: 700px;
  margin: 0 auto;
  padding: 20px 0 40px;
}

/* ── 文章头部 ── */
.article-header {
  margin-bottom: 44px;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(107, 84, 58, 0.16);
}

.article-header .eyebrow {
  margin-bottom: 14px;
}

.article-header h1 {
  margin: 0 0 20px;
  font-size: clamp(1.9rem, 4.2vw, 2.9rem);
  line-height: 1.12;
  letter-spacing: -0.02em;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin: 0;
  padding: 0;
  font-family: "Courier New", "JetBrains Mono", monospace;
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  list-style: none;
}

.article-meta li {
  display: inline-flex;
  align-items: center;
}

.article-meta li + li::before {
  content: "·";
  margin-right: 18px;
  color: var(--border-strong);
}

/* ── 正文区 ── */
.article-body {
  font-size: 1.08rem;
  line-height: 1.8;
  color: var(--ink);
}

.article-body > p {
  margin: 0 0 1.4em;
}

.article-body > p:first-of-type {
  margin-top: 0;
}

/* 标题层级：带 --stamp 色左侧短横线装饰 */
.article-body h2 {
  position: relative;
  margin: 2.4em 0 0.9em;
  padding-left: 18px;
  font-size: 1.5rem;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.article-body h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 10px;
  height: 3px;
  background: var(--stamp);
  border-radius: 2px;
}

.article-body h3 {
  margin: 2em 0 0.7em;
  font-size: 1.22rem;
  font-weight: 700;
  line-height: 1.3;
  color: var(--ink);
}

/* 引用块 */
.article-body blockquote {
  margin: 1.8em 0;
  padding: 6px 0 6px 20px;
  border-left: 3px solid var(--stamp);
  font-style: italic;
  font-size: 1.04rem;
  line-height: 1.7;
  color: var(--ink-soft);
}

.article-body blockquote p {
  margin: 0 0 0.6em;
}

.article-body blockquote p:last-child {
  margin-bottom: 0;
}

/* 图片 + 图注 */
.article-body figure {
  margin: 2em 0;
}

.article-body figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 14px;
  border: 1px solid rgba(107, 84, 58, 0.14);
  box-shadow: 0 12px 24px var(--shadow);
}

.article-body figcaption {
  margin-top: 10px;
  font-family: "Courier New", "JetBrains Mono", monospace;
  font-size: 0.76rem;
  line-height: 1.5;
  letter-spacing: 0.04em;
  text-align: center;
  color: var(--ink-soft);
}

/* 行内强调 */
.article-body strong {
  color: var(--ink);
  font-weight: 700;
}

.article-body em {
  font-style: italic;
}

.article-body code {
  padding: 2px 7px;
  border-radius: 5px;
  background: var(--stamp-soft);
  font-family: "Courier New", "JetBrains Mono", monospace;
  font-size: 0.9em;
  color: var(--stamp);
}

/* 正文链接：加下划线 + 印章红，区别于导航的无下划线 */
.article-body a {
  color: var(--stamp);
  text-decoration: underline;
  text-decoration-color: rgba(177, 68, 44, 0.32);
  text-underline-offset: 3px;
  transition: text-decoration-color 150ms ease, color 150ms ease;
}

.article-body a:hover,
.article-body a:focus-visible {
  color: var(--ink);
  text-decoration-color: var(--stamp);
}

/* 列表 */
.article-body ul,
.article-body ol {
  margin: 0 0 1.4em;
  padding-left: 1.4em;
}

.article-body li {
  margin-bottom: 0.5em;
  line-height: 1.75;
}

/* 分隔线 */
.article-body hr {
  margin: 2.6em 0;
  border: 0;
  border-top: 1px solid rgba(107, 84, 58, 0.16);
}

/* ── 文章页脚 ── */
.article-footer {
  margin-top: 52px;
  padding-top: 28px;
  border-top: 1px solid rgba(107, 84, 58, 0.16);
}

.article-footer__back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

/* 上下篇导航（预留，第一篇文章上线后启用） */
.article-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 28px;
}

.article-nav__link {
  display: block;
  padding: 18px 20px;
  border: 1px solid rgba(107, 84, 58, 0.18);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.18);
  transition: border-color 200ms ease, box-shadow 200ms ease;
}

.article-nav__link:hover {
  border-color: var(--border-strong);
  box-shadow: 0 10px 20px var(--shadow);
}

.article-nav__link--next {
  text-align: right;
}

.article-nav__label {
  display: block;
  margin-bottom: 6px;
  font-family: "Courier New", "JetBrains Mono", monospace;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.article-nav__title {
  display: block;
  font-size: 1rem;
  font-weight: 600;
  color: var(--ink);
}

/* ── 文章列表页专用：文章卡（复用 archive-card 视觉） ── */
.post-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 18px;
  padding: 26px;
  border: 1px solid rgba(107, 84, 58, 0.2);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.18);
  box-shadow: 0 14px 26px rgba(28, 20, 14, 0.05);
  transition: border-color 200ms ease, box-shadow 200ms ease, transform 200ms ease;
}

.post-card:hover {
  border-color: var(--border-strong);
  box-shadow: 0 18px 34px var(--shadow);
  transform: translateY(-2px);
}

.post-card__kicker {
  margin: 0 0 10px;
  font-family: "Courier New", "JetBrains Mono", monospace;
  font-size: 0.73rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--stamp);
}

.post-card h2 {
  margin: 0 0 12px;
  font-size: clamp(1.4rem, 2.4vw, 1.9rem);
  line-height: 1.16;
  letter-spacing: -0.02em;
}

.post-card p {
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.65;
}

.post-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.post-card__meta span {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 12px;
  border: 1px solid rgba(107, 84, 58, 0.18);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
  font-size: 0.78rem;
  color: var(--ink-soft);
}

/* ── 文章列表网格 ── */
.post-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

/* ── 响应式 ── */
@media (max-width: 1279px) {
  .post-grid,
  .article-nav {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 767px) {
  .article {
    padding: 12px 0 28px;
  }

  .article-header h1 {
    font-size: clamp(1.6rem, 7vw, 2.2rem);
  }

  .article-body {
    font-size: 1.02rem;
  }

  .article-body h2 {
    font-size: 1.32rem;
  }

  .article-body h3 {
    font-size: 1.12rem;
  }

  .post-card,
  .article-nav__link {
    padding: 20px;
    border-radius: 20px;
  }
}