/* article.css — 文章页共用样式
   独立成文件而不是各自内联：两篇以上就能靠浏览器缓存省下重复下载，
   而且改一次配色所有文章页同步。 */
@import url('https://fonts.googleapis.com/css2?family=Sora:wght@400;600;700;800&family=Inter:wght@400;500;600;700&display=swap');

:root {
  --bg-base:#14102b; --bg-deep:#0e0b1f;
  --glass:rgba(255,255,255,.055); --glass-strong:rgba(255,255,255,.085);
  --glass-border:rgba(255,255,255,.11); --glass-border-lit:rgba(255,255,255,.2);
  --text:#ece9f7; --text-dim:#a9a3c4; --text-faint:#6f6a8d;
  --accent:#ff7ad9; --accent-2:#6ee7ff; --accent-3:#b794f4; --accent-warm:#ffcc70;
  --display:'Sora',-apple-system,'PingFang SC',sans-serif;
  --sans:'Inter',-apple-system,'PingFang SC','Microsoft YaHei',sans-serif;
  --radius:18px; --radius-sm:12px; --ease:cubic-bezier(.22,1,.36,1);
}
*{box-sizing:border-box;margin:0;padding:0}
body{
  font-family:var(--sans);background:var(--bg-base);color:var(--text);line-height:1.8;
  background-image:
    radial-gradient(60vw 42vw at 12% -8%, rgba(255,122,217,.13), transparent 62%),
    radial-gradient(52vw 40vw at 92% 2%, rgba(110,231,255,.10), transparent 62%);
  background-attachment:fixed;
}
.wrap{max-width:720px;margin:0 auto;padding:0 24px}
h1,h2,h3{font-family:var(--display);letter-spacing:-.02em;line-height:1.35}
h1{font-size:clamp(27px,4.8vw,40px);font-weight:800;margin-bottom:16px}
h2{font-size:clamp(20px,3vw,26px);font-weight:700;margin:54px 0 14px}
h3{font-size:17px;font-weight:650;margin:30px 0 8px}
p{margin-bottom:17px;color:var(--text-dim)}
a{color:var(--accent-2)}
strong{color:var(--text);font-weight:600}
ul,ol{margin:0 0 17px 22px;color:var(--text-dim)}
li{margin-bottom:7px}

header{border-bottom:1px solid var(--glass-border);padding:16px 0}
header .wrap{display:flex;align-items:center;gap:14px;max-width:1080px}
header a.brand{display:flex;align-items:center;gap:9px;color:var(--text);text-decoration:none;font-family:var(--display);font-weight:700}
header img{width:26px;height:26px;border-radius:7px}
header nav{margin-left:auto;display:flex;gap:18px;font-size:14px}
header nav a{color:var(--text-dim);text-decoration:none}
header nav a:hover{color:var(--text)}

.crumb{font-size:13px;color:var(--text-faint);padding:22px 0 0}
.crumb a{color:var(--text-faint);text-decoration:none}
.crumb a:hover{color:var(--text-dim)}

.lede{font-size:17.5px;color:var(--text-dim);margin-bottom:10px}
.updated{font-size:13px;color:var(--text-faint);margin-bottom:38px}

.card{
  background:var(--glass);border:1px solid var(--glass-border);
  backdrop-filter:blur(20px) saturate(140%);border-radius:var(--radius);
  padding:20px 24px;margin:24px 0;
}
.card h3{margin-top:0}
.card p:last-child,.card ul:last-child{margin-bottom:0}
.card.quiet{background:rgba(255,255,255,.03)}

table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14.5px}
th,td{text-align:left;padding:12px;border-bottom:1px solid var(--glass-border);vertical-align:top}
th{color:var(--text-faint);font-weight:600;font-size:12.5px;letter-spacing:.03em}
td{color:var(--text-dim)}
td:first-child{color:var(--text);font-weight:500}
code{background:rgba(255,255,255,.06);padding:2px 6px;border-radius:5px;font-size:13.5px;color:var(--text)}

mark{background:linear-gradient(120deg,rgba(255,122,217,.32),rgba(183,148,244,.32));color:var(--text);padding:1px 5px;border-radius:4px}
mark.warn{background:linear-gradient(120deg,rgba(255,204,112,.32),rgba(255,122,217,.22))}

blockquote{
  border-left:2px solid var(--accent-3);padding:4px 0 4px 18px;margin:22px 0;
  color:var(--text-dim);font-style:normal;
}

.cta-row{display:flex;flex-wrap:wrap;gap:12px 18px;align-items:center;margin:28px 0 8px}
.btn{display:inline-block;padding:12px 24px;border-radius:999px;font-weight:600;font-size:15px;text-decoration:none;transition:transform .25s var(--ease)}
.btn-primary{background:linear-gradient(120deg,var(--accent),var(--accent-3) 55%,var(--accent-2));color:#16112e}
.btn-primary:hover{transform:translateY(-2px)}
.cta-row .note{font-size:13.5px;color:var(--text-faint)}

.faq-item{border-bottom:1px solid var(--glass-border);padding:18px 0}
.faq-item:last-child{border-bottom:0}
.faq-item h3{margin:0 0 8px;font-size:16px}
.faq-item p{margin-bottom:0;font-size:14.5px}

.related{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
.related a{font-size:13.5px;padding:8px 15px;border-radius:999px;text-decoration:none;color:var(--text-dim);background:var(--glass);border:1px solid var(--glass-border)}
.related a:hover{color:var(--text);border-color:var(--glass-border-lit)}

footer{margin-top:72px;border-top:1px solid var(--glass-border);padding:28px 0 56px;font-size:13.5px;color:var(--text-faint)}
footer .wrap{display:flex;flex-wrap:wrap;gap:8px 20px;max-width:1080px}
footer a{color:var(--text-dim);text-decoration:none}

header .wrap{flex-wrap:wrap}header nav{align-items:center;flex-wrap:wrap}.article-language{font:inherit}main .related{flex-wrap:wrap}@media(max-width:640px){header nav{margin-left:0;width:100%;gap:12px}main table{display:block;overflow-x:auto;max-width:100%}main th,main td{min-width:130px}main td:last-child{min-width:230px}.crumb{overflow-wrap:anywhere}}