/* Thelsy — SEO 子页面共享样式
   设计令牌与首页 index.html 保持一致（背景 #06070a、主色 #7c5cff、字体栈相同）
   首页的样式是内联的，不动它；子页面统一引用本文件。 */

:root{
  --bg:#06070a;
  --bg-soft:#0a0c12;
  --surface:rgba(255,255,255,.026);
  --surface-2:rgba(255,255,255,.05);
  --border:rgba(255,255,255,.085);
  --border-2:rgba(255,255,255,.16);
  --text:#e9ebf2;
  --muted:#98a1b4;
  --muted-2:#6d7689;
  --accent:#7c5cff;
  --accent-2:#22d3ee;
  --accent-3:#34d399;
  --grad:linear-gradient(135deg,#7c5cff 0%,#4f8cff 48%,#22d3ee 100%);
  --radius:14px;
  --radius-lg:22px;
  --maxw:1180px;
  --font:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:var(--font);font-size:16px;line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";position:fixed;inset:-20% -10% auto -10%;height:100vh;z-index:-1;
  background:
    radial-gradient(60% 55% at 18% 8%,rgba(124,92,255,.20),transparent 60%),
    radial-gradient(50% 45% at 82% 4%,rgba(34,211,238,.14),transparent 62%);
  filter:blur(6px);pointer-events:none;
}
a{color:inherit;text-decoration:none}
h1,h2,h3{margin:0;line-height:1.2;letter-spacing:-.022em;font-weight:600}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
code{font-family:var(--mono);font-size:.9em;background:rgba(255,255,255,.06);padding:2px 6px;border-radius:6px;color:#d5d9e4}
pre{margin:0;overflow:auto}
pre code{background:none;padding:0;font-size:.88rem;line-height:1.7;color:#dfe3ee}
:focus-visible{outline:2px solid var(--accent-2);outline-offset:3px;border-radius:6px}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.narrow{max-width:820px}

/* ---------- header ---------- */
.hdr{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(14px);
  background:rgba(6,7,10,.78);
  border-bottom:1px solid var(--border);
}
.hdr-in{display:flex;align-items:center;gap:14px;height:62px}
.brand{display:flex;align-items:center;gap:10px;font-weight:600;letter-spacing:-.02em}
.brand svg{width:26px;height:26px}
.hdr nav{margin-left:auto;display:flex;align-items:center;gap:18px;font-size:.92rem;color:var(--muted)}
.hdr nav a:hover{color:var(--text)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:999px;background:var(--grad);color:#fff;
  font-weight:600;font-size:.94rem;border:0;cursor:pointer;
  transition:transform .18s ease,filter .18s ease;
}
.btn:hover{transform:translateY(-1px);filter:brightness(1.06)}
.btn.ghost{background:var(--surface-2);color:var(--text);border:1px solid var(--border-2)}

/* ---------- content ---------- */
main{padding:56px 0 72px}
.eyebrow{
  display:inline-block;font-size:.76rem;letter-spacing:.14em;text-transform:uppercase;
  color:var(--accent-2);margin-bottom:14px;
}
h1{font-size:clamp(1.85rem,4vw,2.6rem);margin-bottom:16px}
h2{font-size:1.35rem;margin:44px 0 14px}
h3{font-size:1.06rem;margin:26px 0 10px}
.lead{color:var(--muted);font-size:1.06rem;margin-bottom:26px}
p+ p{margin-top:12px}
main ul{margin:14px 0 0;display:grid;gap:9px}
main ul li{position:relative;padding-left:24px;color:var(--muted)}
main ul li::before{
  content:"";position:absolute;left:4px;top:.62em;width:7px;height:7px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 0 3px rgba(124,92,255,.16);
}
main ul li strong{color:var(--text)}
ol.steps{margin:14px 0 0;padding-left:0;counter-reset:s;display:grid;gap:12px}
ol.steps li{position:relative;padding-left:38px;color:var(--muted);list-style:none;counter-increment:s}
ol.steps li::before{
  content:counter(s);position:absolute;left:0;top:.1em;width:24px;height:24px;border-radius:8px;
  display:grid;place-items:center;font-size:.78rem;font-weight:600;
  background:var(--surface-2);border:1px solid var(--border-2);color:var(--text);
}
ol.steps li strong{color:var(--text)}

/* ---------- code ---------- */
.code{
  margin:16px 0;border:1px solid var(--border);border-radius:var(--radius);
  background:#0b0d13;overflow:hidden;
}
.code-bar{
  display:flex;align-items:center;gap:10px;padding:9px 14px;
  border-bottom:1px solid var(--border);background:rgba(255,255,255,.02);
}
.code-bar .tag{font-family:var(--mono);font-size:.76rem;color:var(--muted-2)}
.code-bar button{
  margin-left:auto;font-size:.76rem;color:var(--muted);background:none;border:0;cursor:pointer;
  font-family:var(--font);
}
.code-bar button:hover{color:var(--text)}
.code pre{padding:14px 16px}

/* ---------- callouts ---------- */
.note{
  margin:18px 0;padding:14px 16px;border-radius:var(--radius);
  background:var(--surface);border:1px solid var(--border);color:var(--muted);
  font-size:.94rem;display:flex;gap:12px;
}
.note svg{width:18px;height:18px;flex:none;margin-top:3px;stroke:var(--accent-2);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.note strong{color:var(--text)}

.cta{
  margin:44px 0 0;padding:26px;border-radius:var(--radius-lg);
  background:var(--surface);border:1px solid var(--border-2);
}
.cta h2{margin:0 0 10px;font-size:1.25rem}
.cta p{color:var(--muted);margin-bottom:18px}
.cta .row{display:flex;gap:12px;flex-wrap:wrap}

.related{margin:40px 0 0;padding-top:22px;border-top:1px solid var(--border)}
.related h2{margin:0 0 12px;font-size:1rem;color:var(--muted)}
.related ul{margin:0}
.related a{color:var(--accent-2);text-decoration:underline;text-underline-offset:3px}

.ftr{border-top:1px solid var(--border);padding:26px 0;color:var(--muted-2);font-size:.86rem}
.ftr-in{display:flex;flex-wrap:wrap;gap:14px 22px;align-items:center}
.ftr a:hover{color:var(--text)}
.ftr .sp{margin-left:auto}