*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --primary:#3b82f6;--secondary:#60a5fa;
  --bg:#0f0f14;--bg-surface:#18181f;--bg-card:#1e1e28;
  --border:rgba(255,255,255,.08);--border-hover:rgba(59,130,246,.3);
  --text:#e8e8f0;--text-muted:#8888a8;--text-faint:#555570;
  --radius-sm:8px;--radius-md:14px;--radius-lg:20px;
  --transition:.2s cubic-bezier(.4,0,.2,1);
  --font-mono:'Fira Code','Cascadia Code','JetBrains Mono',monospace
}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased;min-height:100vh}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
svg{display:block}

.site-header{position:sticky;top:0;z-index:100;background:rgba(15,15,20,.9);backdrop-filter:blur(16px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;gap:24px;height:64px;width:100%;max-width:1280px;margin-inline:auto;padding-inline:clamp(16px,4vw,48px)}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-icon{width:36px;height:36px}
.logo-text{font-size:1.1rem;font-weight:700;background:linear-gradient(135deg,#fff 40%,var(--primary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{padding:6px 14px;border-radius:var(--radius-sm);font-size:.9rem;font-weight:500;color:var(--text-muted);transition:all var(--transition)}
.nav-link:hover,.nav-link.active{color:var(--text);background:rgba(255,255,255,.06)}

.main-wrap{width:100%;max-width:1280px;margin-inline:auto;padding:clamp(16px,2.5vw,36px) clamp(16px,4vw,48px) clamp(40px,6vw,80px)}

.tool-hero{text-align:center;padding:clamp(14px,2.5vw,32px) 0 clamp(18px,2.5vw,28px)}
.tool-badge{display:inline-flex;align-items:center;gap:6px;padding:4px 14px;border-radius:999px;font-size:.75rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;background:rgba(59,130,246,.1);border:1px solid rgba(59,130,246,.25);color:#93c5fd;margin-bottom:14px}
.tool-title{font-size:clamp(2rem,5vw,3rem);font-weight:900;letter-spacing:-.04em;line-height:1.1;margin-bottom:8px}
.gradient-title{background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.tool-subtitle{font-size:clamp(.9rem,2vw,1.05rem);color:var(--text-muted);max-width:600px;margin:0 auto}

.ad-slot{background:rgba(255,255,255,.02);border:1px dashed rgba(255,255,255,.07);border-radius:var(--radius-md);min-height:90px;display:flex;align-items:center;justify-content:center;color:var(--text-faint);font-size:.75rem;overflow:hidden}

.mode-tabs{display:flex;gap:8px;margin-bottom:16px;flex-wrap:wrap}
.mode-tab{padding:8px 20px;border-radius:var(--radius-sm);font-size:.83rem;font-weight:700;border:1.5px solid var(--border);color:var(--text-muted);transition:all var(--transition)}
.mode-tab.active{background:var(--primary);border-color:var(--primary);color:#fff}
.mode-tab:hover:not(.active){border-color:var(--border-hover);color:var(--text)}

.panel{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden}
.panel-header{display:flex;align-items:center;justify-content:space-between;padding:10px 18px;border-bottom:1px solid var(--border);background:rgba(0,0,0,.15);flex-wrap:wrap;gap:6px}
.panel-title{font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:var(--text-faint)}
.panel-actions{display:flex;gap:6px}
.btn-sm{padding:4px 12px;border-radius:6px;font-size:.75rem;font-weight:700;color:var(--text-muted);border:1px solid var(--border);transition:all var(--transition)}
.btn-sm:hover{color:var(--primary);border-color:var(--border-hover);background:rgba(59,130,246,.06)}
.panel-body{padding:14px}

.field-textarea,.field-input{width:100%;background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px;color:var(--text);font-family:var(--font-mono);font-size:.85rem;outline:none;transition:border-color var(--transition)}
.field-textarea:focus,.field-input:focus{border-color:var(--primary)}
.field-textarea::placeholder,.field-input::placeholder{color:var(--text-faint);font-family:inherit}
.field-textarea{resize:vertical;min-height:140px;line-height:1.6}

.action-bar{display:flex;gap:8px;padding:10px 14px;border-top:1px solid var(--border);flex-wrap:wrap}
.btn-primary{display:inline-flex;align-items:center;gap:6px;padding:8px 18px;border-radius:var(--radius-sm);font-size:.83rem;font-weight:700;background:var(--primary);color:#fff;border:none;transition:all var(--transition)}
.btn-primary:hover{background:var(--secondary)}
.btn-outline{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:var(--radius-sm);font-size:.83rem;font-weight:700;background:none;color:var(--text-muted);border:1.5px solid var(--border);transition:all var(--transition)}
.btn-outline:hover{border-color:var(--border-hover);color:var(--text)}

.swap-btn{display:flex;align-items:center;justify-content:center;margin:8px 0;gap:8px}
.swap-btn button{display:flex;align-items:center;gap:6px;padding:6px 14px;border-radius:var(--radius-sm);font-size:.78rem;font-weight:700;color:var(--text-muted);border:1px solid var(--border);transition:all var(--transition)}
.swap-btn button:hover{color:var(--primary);border-color:var(--border-hover)}
.swap-btn button svg{width:14px;height:14px}

.params-table{width:100%;border-collapse:collapse;font-size:.82rem;font-family:var(--font-mono)}
.params-table th{font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--text-faint);padding:7px 10px;border-bottom:1px solid var(--border);text-align:left;font-family:'Inter',sans-serif}
.params-table td{padding:7px 10px;border-bottom:1px solid rgba(255,255,255,.04);word-break:break-all}
.params-table tr:last-child td{border-bottom:none}
.param-key{color:#93c5fd}
.param-val{color:#86efac}

.ref-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px}
.ref-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);padding:16px}
.ref-title{font-size:.85rem;font-weight:700;margin-bottom:10px;color:var(--primary)}
.ref-rows{display:flex;flex-direction:column;gap:6px}
.ref-row{display:flex;align-items:flex-start;gap:10px}
.ref-char{font-family:var(--font-mono);background:rgba(59,130,246,.1);color:#93c5fd;padding:1px 7px;border-radius:4px;font-size:.78rem;flex-shrink:0;min-width:38px;text-align:center}
.ref-desc{font-size:.78rem;color:var(--text-muted)}

.page-section{margin-top:clamp(32px,5vw,56px)}
.section-title{font-size:clamp(1.2rem,2.5vw,1.7rem);font-weight:800;letter-spacing:-.03em;margin-bottom:8px}
.section-desc{color:var(--text-muted);font-size:.9rem;margin-bottom:24px}
.section-divider{border:none;border-top:1px solid var(--border);margin:clamp(24px,4vw,44px) 0}

.steps-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.step-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);padding:20px}
.step-number{width:32px;height:32px;border-radius:50%;background:rgba(59,130,246,.15);color:var(--primary);font-size:.9rem;font-weight:800;display:flex;align-items:center;justify-content:center;margin-bottom:12px}
.step-title{font-size:.93rem;font-weight:700;margin-bottom:6px}
.step-desc{font-size:.82rem;color:var(--text-muted);line-height:1.6}
.step-desc code{background:rgba(59,130,246,.1);color:#93c5fd;padding:1px 5px;border-radius:3px;font-family:var(--font-mono);font-size:.78rem}

.features-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px}
.feature-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);padding:18px}
.feature-icon{font-size:1.4rem;margin-bottom:10px}
.feature-title{font-size:.88rem;font-weight:700;margin-bottom:5px}
.feature-desc{font-size:.78rem;color:var(--text-muted);line-height:1.5}

.faq-list{display:flex;flex-direction:column;gap:8px}
.faq-item{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden}
.faq-q{display:flex;align-items:center;justify-content:space-between;width:100%;padding:14px 18px;font-size:.9rem;font-weight:600;color:var(--text);text-align:left;gap:12px}
.faq-q:hover{color:var(--primary)}
.faq-icon{font-size:1.2rem;color:var(--text-faint);flex-shrink:0;transition:transform var(--transition)}
.faq-a{display:none;padding:0 18px 16px;font-size:.85rem;color:var(--text-muted);line-height:1.7}
.faq-a code{background:rgba(59,130,246,.1);color:#93c5fd;padding:1px 5px;border-radius:3px;font-family:var(--font-mono);font-size:.78rem}
.faq-item.open .faq-a{display:block}
.faq-item.open .faq-icon{transform:rotate(45deg);color:var(--primary)}

.related-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:14px}
.related-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-md);padding:16px;display:flex;flex-direction:column;gap:8px;transition:all var(--transition)}
.related-card:hover{border-color:var(--border-hover);transform:translateY(-2px)}
.related-icon{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.related-icon svg{width:20px;height:20px;color:#fff}
.related-name{font-size:.88rem;font-weight:700}
.related-desc{font-size:.78rem;color:var(--text-muted);line-height:1.4;flex:1}
.related-link{font-size:.78rem;color:var(--primary);font-weight:600}

.site-footer{background:var(--bg-surface);border-top:1px solid var(--border);margin-top:64px;padding-top:40px}
.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:40px;width:100%;max-width:1280px;margin-inline:auto;padding-inline:clamp(16px,4vw,48px);padding-bottom:40px}
.footer-heading{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--text-faint);margin-bottom:10px}
.footer-links{display:flex;flex-direction:column;gap:7px}
.footer-links a{font-size:.85rem;color:var(--text-muted);transition:color var(--transition)}
.footer-links a:hover{color:var(--text)}
.footer-brand-text{font-size:.82rem;color:var(--text-faint);margin-top:10px;line-height:1.5}
.footer-bottom{border-top:1px solid var(--border);padding:18px clamp(16px,4vw,48px);width:100%;max-width:1280px;margin-inline:auto;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;font-size:.78rem;color:var(--text-faint)}

.toast{position:fixed;bottom:24px;right:24px;background:#1e1e28;border:1px solid var(--border);border-radius:var(--radius-md);padding:10px 20px;font-size:.85rem;font-weight:600;color:var(--text);box-shadow:0 8px 32px rgba(0,0,0,.4);transform:translateY(80px);opacity:0;transition:all .3s;z-index:1000;pointer-events:none}
.toast.show{transform:translateY(0);opacity:1}

@media(max-width:768px){.main-nav{display:none}.footer-grid{grid-template-columns:1fr}}