/* ====================== Longtail 长尾文章页样式 ====================== */
:root{
  --cyan:#28d9ff;
  --text:#e9edf7;--text-dim:#98a1b8;--line:rgba(255,255,255,.09);
}
*{box-sizing:border-box;margin:0;padding:0}
body{
  font-family:'Noto Sans SC',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  color:var(--text);line-height:1.5;-webkit-font-smoothing:antialiased;
  background:
    radial-gradient(circle at 12% 8%, rgba(40,217,255,.18), transparent 32%),
    radial-gradient(circle at 88% 36%, rgba(255,62,209,.16), transparent 36%),
    radial-gradient(circle at 46% 72%, rgba(135,92,255,.10), transparent 34%),
    linear-gradient(180deg,#03040a 0%,#070916 46%,#0c1024 100%);
  background-attachment:fixed;min-height:100vh;
}
.lt-page{width:min(1440px,calc(100% - 44px));margin:0 auto;padding:48px 0 72px}
.lt-hero{padding:8px 0 28px;text-align:left}
.lt-hero .lt-kicker{display:inline-flex;align-items:center;gap:8px;border:1px solid rgba(40,217,255,.4);color:var(--cyan);background:rgba(40,217,255,.08);border-radius:999px;padding:5px 12px;font-size:12px;letter-spacing:.02em;margin-bottom:16px}
.lt-hero h1{font-size:clamp(26px,3.8vw,42px);line-height:1.18;font-weight:700;letter-spacing:-.02em}
.lt-hero .lt-desc{margin-top:12px;color:var(--text-dim);font-size:16px;max-width:780px}
.lt-content{overflow-x:auto;margin-top:26px}
.lt-content h2{font-size:22px;font-weight:700;letter-spacing:-.01em;margin:38px 0 14px;padding-left:12px;border-left:3px solid var(--cyan)}
.lt-content h3{font-size:17px;font-weight:600;margin:24px 0 10px}
.lt-content p{margin:10px 0;color:var(--text);font-size:15px;line-height:1.8}
.lt-content ul,.lt-content ol{margin:10px 0 10px 22px;font-size:15px;line-height:1.8;color:var(--text)}
.lt-content li{margin:6px 0}
.lt-content a{color:var(--cyan);text-decoration:none;border-bottom:1px solid rgba(40,217,255,.35)}
.lt-content a:hover{border-bottom-color:var(--cyan)}
.lt-content table{width:100%;border-collapse:collapse;font-size:14px;margin:14px 0}
.lt-content th,.lt-content td{padding:10px 12px;border-bottom:1px solid var(--line);text-align:left}
.lt-content th{color:var(--text-dim);font-weight:500;background:rgba(255,255,255,.025)}
.lt-content td b{color:var(--cyan)}
.lt-content td strong{color:var(--cyan)}
.lt-content blockquote{margin:14px 0;padding:12px 16px;border-left:3px solid rgba(40,217,255,.5);background:rgba(255,255,255,.03);border-radius:0 10px 10px 0;color:var(--text-dim);font-size:14px}
.lt-content table:has(td img){border-collapse:separate;border-spacing:0;border-radius:18px;overflow:hidden;background:rgba(255,255,255,.045);border:1px solid var(--line)}
.lt-content table:has(td img) th{background:rgba(255,255,255,.05);color:var(--text-dim)}
.lt-content table:has(td img) th,.lt-content table:has(td img) td{border-bottom:1px solid var(--line);padding:16px 14px;vertical-align:middle}
.lt-content table:has(td img) tr:last-child th,.lt-content table:has(td img) tr:last-child td{border-bottom:none}
.lt-content table:has(td img) img{width:150px;max-width:150px;border-radius:12px;display:block;margin:0}
.lt-content table:has(td img) a{display:inline-block;background:var(--cyan);color:#02121a;font-weight:700;font-size:13px;padding:8px 14px;border-radius:8px;border:none;white-space:nowrap;text-decoration:none}
.lt-content table:has(td img) a:hover{filter:brightness(1.1);border:none}
.lt-content img{max-width:100%;border-radius:12px;margin:12px 0}
.lt-content hr{border:none;border-top:1px solid var(--line);margin:26px 0}
.g-prod__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:20px;margin:16px 0}
.g-prod{border:1px solid var(--line);background:rgba(255,255,255,.035);border-radius:18px;overflow:hidden;display:flex;flex-direction:column;transition:transform .25s ease,border-color .25s ease}
.g-prod:hover{transform:translateY(-3px);border-color:rgba(40,217,255,.45)}
.g-prod__media{background:#0b0e1c;position:relative;aspect-ratio:4/3}
.g-prod__media img{width:100%;height:100%;object-fit:cover;display:block}
.g-prod__tag{position:absolute;top:12px;left:12px;background:rgba(3,4,10,.72);border:1px solid rgba(40,217,255,.5);color:var(--cyan);font-size:12px;padding:4px 10px;border-radius:999px}
.g-prod__body{padding:20px 20px 22px;display:flex;flex-direction:column;flex:1}
.g-prod__body h3{font-size:19px;font-weight:700;letter-spacing:-.01em;margin:0 0 8px}
.g-prod__io{font-size:13px;color:var(--text-dim);margin:0 0 14px;line-height:1.7}
.g-prod__io b{color:var(--text)}
.g-prod__btn{margin-top:auto;display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--cyan);color:#02121a;font-weight:700;font-size:14px;border-radius:10px;padding:12px 18px;text-decoration:none;transition:filter .2s ease}
.g-prod__btn:hover{filter:brightness(1.1)}
.g-callout{margin:16px 0;padding:16px 18px;border:1px solid rgba(40,217,255,.35);border-radius:14px;background:rgba(40,217,255,.06)}
.g-callout b{color:var(--cyan)}
.faq-list{display:grid;gap:12px;margin-top:6px}
.faq-item{border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.03);overflow:hidden}
.faq-q{width:100%;background:none;border:none;color:var(--text);font-size:15px;font-weight:600;text-align:left;padding:16px 18px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq-q::after{content:"+";color:var(--cyan);font-size:18px;font-weight:400;transition:transform .2s ease}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease}
.faq-a p{padding:0 18px 16px;color:var(--text-dim);font-size:14px;line-height:1.75;margin:0}
.lt-tools{margin-top:46px}
.lt-tools h2{font-size:20px;font-weight:700;margin-bottom:16px}
.lt-tools__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px}
.lt-tool{border:1px solid var(--line);border-radius:14px;padding:16px 18px;text-decoration:none;color:var(--text);background:rgba(255,255,255,.03);transition:border-color .2s ease,transform .2s ease;display:block}
.lt-tool:hover{border-color:rgba(40,217,255,.5);transform:translateY(-2px)}
.lt-tool b{display:block;font-size:15px;margin-bottom:4px}
.lt-tool span{color:var(--text-dim);font-size:13px;line-height:1.6}
.lt-note{margin-top:30px;padding:14px 16px;border:1px dashed var(--line);border-radius:12px;color:var(--text-dim);font-size:13px;text-align:center}
@media (max-width:640px){
  .lt-page{padding:32px 0 56px}
}