:root{--bg:#f6f8fc;--surface:#fff;--text:#172033;--muted:#687386;--line:#e4e8f0;--primary:#3157e8;--primary-dark:#243fb0;--code:#101522;--radius:18px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--text);background:var(--bg);line-height:1.65}.container{width:min(1120px,calc(100% - 32px));margin:auto}.site-header{position:sticky;top:0;z-index:10;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.nav{min-height:68px;display:flex;align-items:center;justify-content:space-between}.brand{color:var(--text);text-decoration:none;font-size:1.25rem;font-weight:850}.brand span{color:var(--primary)}nav{display:flex;gap:22px}nav a,.footer a{color:var(--muted);text-decoration:none}nav a:hover,.footer a:hover{color:var(--primary)}.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;padding:85px 0 55px}.eyebrow{color:var(--primary);font-size:.73rem;font-weight:850;letter-spacing:.13em;margin:0 0 8px}.hero h1{font-size:clamp(2.7rem,6vw,5rem);line-height:1.02;letter-spacing:-.055em;margin:0 0 20px}.hero-copy{color:var(--muted);font-size:1.1rem;max-width:650px}.hero-actions{display:flex;gap:18px;align-items:center;margin-top:24px}.primary-btn,.button{display:inline-block;border:0;border-radius:10px;padding:11px 17px;background:var(--primary);color:white;text-decoration:none;font-weight:750;cursor:pointer}.primary-btn:hover,.button:hover{background:var(--primary-dark)}.text-btn{color:var(--primary);font-weight:750;text-decoration:none}.hero-code{background:var(--code);color:#dce5ff;border-radius:var(--radius);padding:18px;box-shadow:0 22px 55px rgba(16,21,34,.18)}.terminal-bar{display:flex;gap:7px;margin-bottom:18px}.terminal-bar i{width:10px;height:10px;border-radius:50%;background:#667085}.hero-code pre{margin:0;white-space:pre-wrap;font:14px/1.7 ui-monospace,SFMono-Regular,Menlo,monospace}.ad-slot{min-height:100px;display:grid;place-items:center;border:1px dashed #cbd1dc;background:#fff;color:#9aa3b2;font-size:.7rem;letter-spacing:.08em;text-transform:uppercase}.section{padding:72px 0}.section-heading{margin-bottom:28px}.section-heading h2{font-size:clamp(1.8rem,3vw,2.6rem);line-height:1.15;margin:0}.section-heading>p:last-child{color:var(--muted)}.tool-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.tool-card,.category-grid>div,.article-grid>a{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;text-decoration:none;color:inherit;transition:.18s ease}.tool-card:hover,.article-grid>a:hover{transform:translateY(-3px);border-color:#c8d1f7;box-shadow:0 12px 30px rgba(30,45,80,.07)}.tool-card p,.category-grid p,.article-grid p{color:var(--muted);margin-bottom:0}.tool-icon{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;background:#edf0ff;color:var(--primary);font-size:.75rem;font-weight:850;margin-bottom:14px}.tool-card h3{margin:0}.category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.article-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.article-grid h3{margin:0}.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px;margin:10px 0}.faq summary{cursor:pointer;font-weight:750}.faq p{color:var(--muted);margin-bottom:0}.footer{background:#101522;color:#fff;padding:44px 0}.footer p{color:#aab2c2;margin:4px 0}.footer-inner{display:grid;grid-template-columns:1fr auto;gap:22px;align-items:center}.footer-links{display:flex;gap:18px}.copyright{grid-column:1/-1;font-size:.85rem}.page{padding:60px 0 90px}.page h1{font-size:clamp(2.4rem,5vw,4rem);line-height:1.08;letter-spacing:-.04em}.page h2{margin-top:42px}.page p,.page li{color:#536074}.breadcrumbs{font-size:.9rem;margin-bottom:25px}.breadcrumbs a{color:var(--primary)}.tool-app{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px;margin:30px 0}.tool-app textarea,.tool-app input,.tool-app select{width:100%;border:1px solid var(--line);border-radius:10px;padding:12px;font:inherit;background:#fbfcfe;color:var(--text);outline:none}.tool-app textarea{min-height:190px;font-family:ui-monospace,monospace;resize:vertical}.tool-app textarea:focus,.tool-app input:focus,.tool-app select:focus{border-color:var(--primary)}.actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}.button.secondary{background:#e9edff;color:#2948c5}.button.ghost{background:#fff;color:var(--muted);border:1px solid var(--line)}.output{background:#f5f6f9;border-radius:10px;padding:14px;margin-top:12px;white-space:pre-wrap;overflow-wrap:anywhere;min-height:52px;font:13px/1.6 ui-monospace,monospace}.tool-table{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden}.tool-table th,.tool-table td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line)}.tool-table th{background:#f5f7fb}.tool-table tr:last-child td{border-bottom:0}.notice{background:#eef2ff;border-left:4px solid var(--primary);padding:14px 16px;border-radius:8px}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:16px}.data-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.result-list{margin-top:14px}.result-list div{padding:10px;border-bottom:1px solid var(--line)}@media(max-width:850px){.hero{grid-template-columns:1fr}.tool-grid{grid-template-columns:repeat(2,1fr)}.category-grid{grid-template-columns:1fr}.article-grid{grid-template-columns:1fr}.two-col{grid-template-columns:1fr}}@media(max-width:600px){nav{gap:10px;font-size:.84rem}.hero{padding-top:52px}.tool-grid{grid-template-columns:1fr}.footer-inner{grid-template-columns:1fr}.footer-links{flex-wrap:wrap}.copyright{grid-column:auto}}