:root{--bg:#f5f7fb;--card:#fff;--text:#111827;--muted:#6b7280;--line:#e5e7eb;--brand:#111827;--good:#0f7a45;--goodbg:#ecfdf3;--warn:#a15c00;--warnbg:#fff7e6;--bad:#b42318;--badbg:#fff1f0}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--text);margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}a{color:inherit;text-decoration:none}button,input,select{font:inherit}.shell{max-width:1180px;margin:auto;padding:0 18px 70px}.header{z-index:20;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);background:#f5f7fbeb;position:sticky;top:0}.headerInner{justify-content:space-between;align-items:center;gap:18px;max-width:1180px;margin:auto;padding:13px 18px;display:flex}.logo{font-size:20px;font-weight:950}.nav{flex-wrap:wrap;gap:8px;display:flex}.nav a{color:var(--muted);border-radius:10px;padding:9px 12px;font-size:14px;font-weight:800}.nav 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var(--line);background:#fff;border-radius:18px;max-width:820px;margin:42px auto 0;padding:clamp(22px,5vw,42px)}.seoContent h2,.articleBody h2{margin:0 0 14px;font-size:26px}.seoContent h3{margin-top:30px;font-size:20px}.seoContent p,.articleBody p{color:#374151;line-height:1.85}.note{border:1px solid var(--line);color:var(--muted);background:#f8fafc;border-radius:14px;margin:24px 0;padding:16px;font-size:14px;line-height:1.7}.linkCard{transition:all .15s;display:block}.linkCard:hover{transform:translateY(-2px);box-shadow:0 12px 32px #11182714}.conversionCard{color:#fff;background:#111827;border-radius:18px;justify-content:space-between;align-items:center;gap:18px;margin:34px 0 0;padding:22px;display:flex}.conversionCard p{color:#d1d5db;margin:6px 0 0}.conversionCard .btnPrimary{color:#111827;white-space:nowrap;background:#fff;border-color:#fff}.article{max-width:960px;margin:auto}.articlePoint{border-bottom:1px solid var(--line);align-items:flex-start;gap:14px;padding:14px 0;line-height:1.65;display:flex}.articlePoint b{color:#fff;background:#111827;border-radius:50%;flex:none;place-items:center;width:28px;height:28px;font-size:12px;display:grid}.articlePoint span{padding-top:2px}.toolDirectory{margin-top:20px}.toolDirectory .card{min-height:150px}@media (max-width:800px){.conversionCard{flex-direction:column;align-items:stretch}.conversionCard .btn{text-align:center}}