/**
 * 前沿测评模板 — 文章详情页公共样式（SSG 生成页专用）
 *
 * 栏目列表页的样式仍内联在各栏目 HTML 中（模板自带）；
 * 本文件服务发布服务生成的文章详情页 articles/<slug>.html：
 *   1. 设计变量与站点其余页面完全一致（:root）
 *   2. 导航/页脚样式与 assets/js/site.js 注入版同源（详情页为纯静态 HTML，不走 JS 注入，保证搜索引擎完整抓取）
 *   3. .article-body 为 Markdown 渲染正文的排版样式
 */

:root {
  --near-black: #0d0d0d;
  --white: #ffffff;
  --brand-green: #18E299;
  --green-light: #d4fae8;
  --green-deep: #0fa76e;
  --teal: #2dd4bf;
  --cyan: #67e8f9;
  --violet: #c4b5fd;
  --gray-900: #0d0d0d;
  --gray-700: #333333;
  --gray-500: #666666;
  --gray-400: #888888;
  --gray-200: #e5e5e5;
  --gray-100: #f5f5f5;
  --gray-50: #fafafa;
  --border-subtle: 1px solid rgba(0,0,0,0.05);
  --border-medium: 1px solid rgba(0,0,0,0.08);
  --card-shadow: rgba(0,0,0,0.03) 0px 2px 4px;
  --btn-shadow: rgba(0,0,0,0.06) 0px 1px 2px;
  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--white); color: var(--near-black); -webkit-font-smoothing: antialiased; }
a { text-decoration: none; color: inherit; }

/* ===== Navigation（与 site.js 注入版同源） ===== */
.nav{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,0.85);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:var(--border-subtle);padding:0 24px}
.nav-inner{max-width:1200px;margin:0 auto;height:60px;display:flex;align-items:center;justify-content:space-between}
.nav-logo{font-size:20px;font-weight:600;color:var(--near-black);letter-spacing:-0.4px;display:flex;align-items:center;gap:8px}
.nav-logo .leaf{width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,#18E299 0%,#2dd4bf 50%,#67e8f9 100%);display:flex;align-items:center;justify-content:center;font-size:14px;box-shadow:0 2px 8px rgba(24,226,153,0.3)}
.nav-links{display:flex;gap:24px;align-items:center}
.nav-links a{font-size:14px;font-weight:500;color:var(--near-black);transition:color 0.2s;position:relative;padding:6px 0}
.nav-links a:hover{color:var(--brand-green)}
.nav-links a.active{color:var(--green-deep);font-weight:600}
.nav-links a.active::after{content:'';position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:linear-gradient(90deg,#18E299,#2dd4bf);opacity:0.6}
.nav-cta{background:linear-gradient(135deg,#0d0d0d 0%,#1a1a2e 100%);color:var(--white);font-size:15px;font-weight:500;padding:8px 24px;border-radius:9999px;border:none;cursor:pointer;box-shadow:var(--btn-shadow);transition:opacity 0.2s,box-shadow 0.3s}
.nav-cta:hover{opacity:0.9;box-shadow:0 4px 16px rgba(0,0,0,0.15)}
@media (max-width:1000px){.nav-links{display:none}}

/* ===== Footer（与 site.js 注入版同源） ===== */
.footer{border-top:var(--border-subtle);padding:48px 24px 32px;background:var(--white);position:relative}
.footer::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent 0%,#18E299 20%,#2dd4bf 40%,#67e8f9 60%,#c4b5fd 80%,transparent 100%);opacity:0.5}
.footer-inner{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px}
@media (max-width:768px){.footer-inner{grid-template-columns:1fr 1fr}}
.footer-brand h3{font-size:18px;font-weight:600;color:var(--near-black);margin-bottom:8px;letter-spacing:-0.2px;display:flex;align-items:center;gap:8px}
.footer-brand h3 .leaf{width:24px;height:24px;border-radius:50%;background:linear-gradient(135deg,#18E299,#2dd4bf,#67e8f9);display:inline-flex;align-items:center;justify-content:center;font-size:12px}
.footer-brand p{font-size:14px;font-weight:400;color:var(--gray-500);line-height:1.5}
.footer-col h4{font-size:14px;font-weight:600;color:var(--near-black);margin-bottom:12px}
.footer-col a{display:block;font-size:14px;font-weight:400;color:var(--gray-500);margin-bottom:8px;transition:color 0.2s}
.footer-col a:hover{color:var(--brand-green)}
.footer-bottom{max-width:1200px;margin:32px auto 0;padding-top:24px;border-top:var(--border-subtle);font-size:13px;color:var(--gray-400)}
.footer-bottom a{color:var(--gray-400);transition:color 0.2s}
.footer-bottom a:hover{color:var(--brand-green)}

/* ===== 文章头部 ===== */
.article-hero { position: relative; overflow: hidden; padding: 56px 24px 40px; background: linear-gradient(160deg, #f6fffd 0%, #f0fbf7 35%, #eef8ff 100%); border-bottom: var(--border-subtle); }
.article-hero-inner { max-width: 800px; margin: 0 auto; position: relative; z-index: 1; }
.breadcrumb { font-size: 13px; color: var(--gray-400); margin-bottom: 20px; }
.breadcrumb a { color: var(--gray-500); transition: color 0.2s; }
.breadcrumb a:hover { color: var(--brand-green); }
.article-hero h1 { font-size: 34px; font-weight: 700; line-height: 1.35; letter-spacing: -0.6px; margin-bottom: 16px; }
@media (max-width: 600px) { .article-hero h1 { font-size: 26px; } }
.article-hero .lede { font-size: 16px; line-height: 1.7; color: var(--gray-500); margin-bottom: 24px; }
.article-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; font-size: 13px; color: var(--gray-400); }
.article-meta .dot::before { content: '·'; margin-right: 12px; }
.cat-badge { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 600; padding: 4px 12px; border-radius: 9999px; background: var(--green-light); color: var(--green-deep); }

/* ===== 封面图 ===== */
.article-cover { max-width: 800px; margin: -24px auto 0; padding: 0 24px; position: relative; z-index: 2; }
.article-cover img { width: 100%; border-radius: 16px; border: var(--border-subtle); box-shadow: 0 12px 40px rgba(0,0,0,0.08); display: block; }

/* ===== 正文排版（Markdown 渲染产物） ===== */
.article-body { max-width: 800px; margin: 0 auto; padding: 48px 24px 32px; font-size: 16px; line-height: 1.85; color: var(--gray-700); }
.article-body > *:first-child { margin-top: 0; }
.article-body h2 {
  font-size: 24px; font-weight: 700; color: var(--near-black); letter-spacing: -0.3px;
  margin: 48px 0 16px; padding-left: 14px; position: relative; line-height: 1.4;
}
.article-body h2::before { content: ''; position: absolute; left: 0; top: 6px; bottom: 6px; width: 4px; border-radius: 4px; background: linear-gradient(180deg, #18E299, #2dd4bf); }
.article-body h3 { font-size: 19px; font-weight: 600; color: var(--near-black); margin: 36px 0 12px; line-height: 1.4; }
.article-body h4 { font-size: 17px; font-weight: 600; color: var(--near-black); margin: 28px 0 10px; }
.article-body p { margin: 16px 0; }
.article-body a { color: var(--green-deep); border-bottom: 1px solid rgba(15,167,110,0.3); transition: border-color 0.2s; }
.article-body a:hover { border-bottom-color: var(--green-deep); }
.article-body strong { color: var(--near-black); font-weight: 600; }
.article-body img { max-width: 100%; border-radius: 12px; border: var(--border-subtle); margin: 8px 0; }
.article-body ul, .article-body ol { margin: 16px 0; padding-left: 26px; }
.article-body li { margin: 8px 0; }
.article-body li::marker { color: var(--brand-green); font-weight: 600; }
.article-body blockquote {
  margin: 24px 0; padding: 16px 20px; border-left: 3px solid var(--brand-green);
  background: var(--gray-50); border-radius: 0 12px 12px 0; color: var(--gray-500); font-size: 15px;
}
.article-body blockquote p { margin: 4px 0; }
.article-body code {
  font-family: var(--mono); font-size: 14px; background: var(--gray-100);
  padding: 2px 6px; border-radius: 6px; color: var(--green-deep);
}
.article-body pre { background: var(--gray-100); border: var(--border-subtle); border-radius: 12px; padding: 18px 20px; overflow-x: auto; margin: 20px 0; }
.article-body pre code { background: none; padding: 0; color: var(--gray-900); }
.article-body table {
  width: 100%; border-collapse: separate; border-spacing: 0;
  margin: 28px 0; font-size: 14px; line-height: 1.6;
  border-radius: 12px; border: var(--border-medium);
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
}
.article-body th {
  background: linear-gradient(180deg, #f0fdf7, #e6faf1); font-weight: 600;
  color: var(--near-black); text-align: left; border-bottom: 1px solid rgba(15, 167, 110, 0.25);
}
.article-body th, .article-body td { padding: 12px 16px; border-bottom: var(--border-subtle); vertical-align: top; }
/* 列间竖线：除首列外每列左侧加浅色分隔，与横线同色系 */
.article-body th:not(:first-child), .article-body td:not(:first-child) { border-left: var(--border-subtle); }
.article-body tbody tr:nth-child(even) td { background: var(--gray-50); }
.article-body tbody tr:hover td { background: #f0fdf7; }
.article-body tr:last-child td { border-bottom: none; }
/* 窄屏：表格横向滚动，避免长文本列挤压变形 */
@media (max-width: 640px) {
  .article-body table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; white-space: nowrap; }
}
.article-body hr { border: none; height: 1px; background: linear-gradient(90deg, transparent, rgba(0,0,0,0.08), transparent); margin: 40px 0; }

/* ===== 标签 / FAQ ===== */
.article-tags { max-width: 800px; margin: 0 auto; padding: 8px 24px 40px; display: flex; flex-wrap: wrap; gap: 8px; }
.article-tags .tag { font-size: 13px; color: var(--gray-500); background: var(--gray-100); border-radius: 9999px; padding: 5px 14px; }
.article-faq { max-width: 800px; margin: 0 auto; padding: 0 24px 48px; }
.article-faq h2 { font-size: 20px; font-weight: 700; margin-bottom: 16px; }
.article-faq details { border: var(--border-subtle); border-radius: 12px; padding: 14px 18px; margin-bottom: 10px; background: var(--gray-50); }
.article-faq summary { font-size: 15px; font-weight: 600; color: var(--near-black); cursor: pointer; }
.article-faq details p { font-size: 14px; color: var(--gray-500); line-height: 1.7; margin-top: 10px; }

/* ===== 相关阅读 ===== */
.related { max-width: 1000px; margin: 0 auto; padding: 0 24px 64px; }
.related h2 { font-size: 20px; font-weight: 700; margin-bottom: 20px; }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 834px) { .related-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .related-grid { grid-template-columns: 1fr; } }
.related-card { display: block; background: var(--white); border: var(--border-subtle); border-radius: 16px; box-shadow: var(--card-shadow); padding: 20px; transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s; }
.related-card:hover { border-color: rgba(24,226,153,0.25); transform: translateY(-4px); box-shadow: 0 8px 32px rgba(24,226,153,0.08), var(--card-shadow); }
.related-card .meta { font-size: 12px; color: var(--gray-400); margin-bottom: 8px; }
.related-card h3 { font-size: 16px; font-weight: 600; line-height: 1.4; color: var(--near-black); transition: color 0.2s; }
.related-card:hover h3 { color: var(--green-deep); }
.related-card p { font-size: 13px; color: var(--gray-500); line-height: 1.5; margin-top: 8px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }