/* ============ 译指 · 全站共用样式 ============ */
:root {
  --bg: #f9fafb; 
  --paper: #f2faf6; 
  --ink: #0f172a;
  --green: #0d9f6e; 
  --green-d: #0a7a52; 
  --mint: #e6f7ef; 
  --lime: #cdf3ad;
  --line: #e2e8f0; 
  --muted: #64748b;
  --disp: "Plus Jakarta Sans", ui-sans-serif, system-ui, "PingFang SC", "Microsoft YaHei", sans-serif;
  --body: ui-sans-serif, system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { 
  font-family: var(--body); 
  color: var(--ink); 
  background: var(--bg); 
  line-height: 1.7; 
  -webkit-font-smoothing: antialiased; 
  padding-bottom: 60px; /* 底部留白 */
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; border-radius: 12px; }
.container { max-width: 1140px; margin: 0 auto; padding: 0 28px; }

/* ============ 导航栏 & Footer ============ */
.site-header { position: sticky; top: 0; z-index: 20; background: rgba(255,255,255,0.95); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 66px; }
.brand { display: flex; align-items: center; gap: 9px; font-family: var(--disp); font-weight: 700; font-size: 19px; color: #0f172a; }
.logo-img { width: 32px; height: 32px; border-radius: 7px; }
.nav-links { display: flex; gap: 30px; list-style: none; font-size: 15px; color: var(--muted); }
.nav-links a:hover { color: var(--ink); }
.nav-links a.active { color: var(--green-d); font-weight: 600; }

.btn { display: inline-flex; align-items: center; gap: 6px; background: var(--green); color: #fff; padding: 9px 18px; border-radius: 8px; font-weight: 600; font-size: 14px; border: none; cursor: pointer; transition: background .15s; }
.btn:hover { background: var(--green-d); }

.site-footer { padding: 40px 0; color: var(--muted); font-size: 14px; border-top: 1px solid var(--line); background: #fff; }
.foot { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
.foot-links { display: flex; gap: 20px; flex-wrap: wrap; }
.foot-links a:hover { color: var(--green-d); }

/* ============ 面包屑 & 页面 Hero ============ */
.crumb { font-size: 13px; color: var(--muted); padding: 24px 0 0; font-family: var(--mono); }
.crumb a:hover { color: var(--green-d); }
.page-hero { padding: 32px 0 40px; border-bottom: 1px solid var(--line); background: #fff; }
.page-hero .eyebrow { font-family: var(--mono); font-size: 13px; color: var(--green-d); font-weight: 700; letter-spacing: 1px; text-transform: uppercase; margin-bottom: 12px; display: inline-block; }
.page-hero h1 { font-family: var(--disp); font-size: clamp(28px, 4vw, 40px); letter-spacing: -1px; margin-bottom: 16px; color: #0f172a; line-height: 1.2; font-weight: 700; }
.page-hero p { color: var(--muted); max-width: 600px; font-size: 16px; }

/* ============ 文章列表页 (网格卡片) ============ */
.sechead { display: flex; align-items: center; gap: 10px; margin: 50px 0 24px; }
.sechead h2 { font-family: var(--disp); font-size: 22px; font-weight: 700; color: #1e293b; }
.sechead .pill { font-size: 12px; color: var(--green-d); background: var(--mint); padding: 4px 12px; border-radius: 20px; font-weight: 600; }

.post-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 32px; }
.post-card { display: flex; flex-direction: column; background: #ffffff; border: 1px solid var(--line); border-radius: 16px; overflow: hidden; transition: transform 0.25s ease, box-shadow 0.25s ease; }
.post-card:hover { transform: translateY(-6px); box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.08); border-color: transparent; }

.post-card .thumb { width: 100%; height: 220px; background-color: var(--paper); position: relative; overflow: hidden; border-radius: 0; }
.post-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; border-radius: 0; }
.post-card:hover .thumb img { transform: scale(1.05); }
.post-card .thumb .tag { position: absolute; top: 16px; left: 16px; background: rgba(255, 255, 255, 0.9); color: var(--green-d); padding: 4px 12px; border-radius: 8px; font-size: 13px; font-weight: 700; backdrop-filter: blur(4px); box-shadow: 0 2px 10px rgba(0,0,0,0.05); }

.post-card .pc-body { padding: 24px 24px 16px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.post-card h3 { font-family: var(--disp); font-size: 20px; line-height: 1.4; font-weight: 700; color: #0f172a; margin: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.post-card p { color: var(--muted); font-size: 15px; line-height: 1.6; margin: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.post-card .pm { padding: 0 24px 24px; font-size: 13.5px; color: #94a3b8; display: flex; align-items: center; gap: 6px; margin-top: auto; }

/* ============ 文章详情页 (两栏布局) ============ */
.section { padding: 50px 0 80px; }
.content-layout { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 64px; align-items: start; }

.prose { font-size: 16.5px; line-height: 1.85; color: #334155; }
.prose h2 { font-family: var(--disp); font-size: 24px; margin: 40px 0 16px; letter-spacing: -0.5px; scroll-margin-top: 80px; color: #0f172a; }
.prose h3 { font-family: var(--disp); font-size: 19px; margin: 28px 0 10px; color: #1e293b; }
.prose p { margin: 16px 0; }
.prose ul, .prose ol { margin: 16px 0 16px 24px; padding-left: 10px; }
.prose li { margin: 8px 0; padding-left: 4px; }
.prose a { color: var(--green-d); font-weight: 600; text-decoration: none; border-bottom: 1px solid var(--mint); transition: border-color 0.2s; }
.prose a:hover { border-color: var(--green-d); }
.prose blockquote { border-left: 4px solid var(--green); background: var(--paper); padding: 16px 20px; border-radius: 0 12px 12px 0; margin: 24px 0; color: #1e293b; font-size: 15.5px; }
.prose code { font-family: var(--mono); background: var(--paper); color: var(--green-d); padding: 3px 6px; border-radius: 6px; font-size: 0.9em; border: 1px solid var(--line); }

.toc { background: #fff; border: 1px solid var(--line); border-radius: 16px; padding: 24px 28px; margin: 32px 0; box-shadow: 0 10px 30px -15px rgba(0,0,0,0.03); }
.toc h4 { font-family: var(--disp); font-size: 15px; margin-bottom: 12px; color: #0f172a; }
.toc ol { margin-left: 20px; color: var(--muted); font-size: 15px; }
.toc li { margin: 8px 0; }
.toc a { color: inherit; font-weight: normal; border: none; }
.toc a:hover { color: var(--green-d); }

/* --- 侧边栏 --- */
.sidebar { display: flex; flex-direction: column; gap: 32px; position: sticky; top: 100px; }
.widget { background: #ffffff; border: 1px solid var(--line); border-radius: 16px; padding: 24px; box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05); }
.widget h3 { font-family: var(--disp); font-size: 17px; font-weight: 700; color: #0f172a; margin-bottom: 20px; display: flex; align-items: center; gap: 10px; }
.widget h3::before { content: ""; display: block; width: 4px; height: 16px; background: var(--green); border-radius: 4px; }
.widget-list { list-style: none; display: flex; flex-direction: column; gap: 18px; }
.widget-item { display: flex; flex-direction: column; gap: 6px; }
.widget-item a { font-size: 15px; font-weight: 600; color: #334155; line-height: 1.45; transition: color 0.2s; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.widget-item a:hover { color: var(--green-d); }
.widget-item .date { font-size: 13px; color: #94a3b8; font-family: var(--mono); }

/* ============ 移动端适配 ============ */
@media(max-width: 992px) {
  .content-layout { grid-template-columns: 1fr; gap: 48px; }
  .sidebar { position: static; }
}
@media(max-width: 768px) {
  .post-list { grid-template-columns: 1fr; }
}
@media(max-width: 680px){
  .nav-links { display: none; }
  .page-hero h1 { font-size: 26px; }
}