:root{--ink:#101637;--muted:#66708d;--indigo:#3545d8;--violet:#7c3aed;--cyan:#06b6d4;--line:#e4e7f2;--soft:#f6f7ff;--navy:#090d29;--white:#fff;--radius:18px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:#fff;font:16px/1.6 Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif}a,button,input,textarea{font:inherit}a,button{transition:.2s}.topbar{height:78px;padding:0 max(22px,calc((100vw - 1180px)/2));display:flex;align-items:center;gap:34px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.94);backdrop-filter:blur(14px);position:sticky;top:0;z-index:30}.logo img{display:block;width:190px;height:auto}.topbar nav{display:flex;gap:25px}.topbar nav a{color:#4e5876;text-decoration:none;font-size:14px;font-weight:700}.topbar nav a:hover{color:var(--violet)}.actions{margin-left:auto;display:flex;gap:10px}.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:11px;padding:12px 18px;text-decoration:none;font-weight:800;cursor:pointer}.btn-primary{color:#fff;background:linear-gradient(135deg,var(--indigo),var(--violet) 58%,var(--cyan));box-shadow:0 10px 24px #5145d82b}.btn-soft{color:var(--indigo);background:#eef0ff}.hero{padding:76px 22px 54px;text-align:center;background:radial-gradient(circle at 50% 20%,#e8e7ff 0,#f5f9ff 35%,#fff 67%)}.eyebrow{color:var(--violet);font-size:12px;font-weight:900;letter-spacing:1.7px}.hero h1{max-width:900px;margin:14px auto 18px;font-size:clamp(42px,6vw,72px);line-height:1.04;letter-spacing:-3.5px}.gradient{color:transparent;background:linear-gradient(90deg,var(--indigo),var(--violet),var(--cyan));background-clip:text}.hero>p{max-width:720px;margin:0 auto 30px;color:var(--muted);font-size:18px}.searchbox{max-width:760px;margin:auto;padding:10px;display:flex;gap:9px;border:1px solid #d8dcf1;border-radius:16px;background:#fff;box-shadow:0 20px 55px #323a7b1c}.searchbox input{flex:1;min-width:0;border:0;outline:0;padding:10px 12px;font-size:17px}.searchbox select{border:0;border-left:1px solid var(--line);padding:0 12px;background:#fff;color:var(--ink)}.quick{max-width:1120px;margin:0 auto;padding:34px 22px 70px;display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.quick a,.tool-card,.language-card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;text-decoration:none;box-shadow:0 8px 28px #202a680d}.quick a{padding:19px;color:var(--ink);font-weight:800}.quick a span{display:block;color:var(--muted);font-size:13px;font-weight:500}.quick a:hover,.tool-card:hover,.language-card:hover{transform:translateY(-3px);border-color:#b8bdf3;box-shadow:0 15px 35px #4938c21c}.section{max-width:1180px;margin:auto;padding:82px 22px}.section-head{display:flex;justify-content:space-between;align-items:end;gap:40px;margin-bottom:32px}.section h2,.page-hero h1{font-size:clamp(34px,4vw,50px);line-height:1.12;letter-spacing:-2px;margin:8px 0}.section-head p{max-width:480px;color:var(--muted)}.tool-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.tool-card{padding:25px;color:var(--ink)}.tool-icon{width:48px;height:48px;display:grid;place-items:center;border-radius:14px;background:linear-gradient(135deg,#ecebff,#e5faff);font-size:24px}.tool-card h3{margin:17px 0 7px}.tool-card p{margin:0;color:var(--muted)}.tool-card b{display:block;margin-top:17px;color:var(--violet)}.language-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.language-card{padding:17px;color:var(--ink);font-weight:800}.language-card small{display:block;color:var(--muted);font-weight:500}.dark{color:#fff;background:linear-gradient(135deg,var(--navy),#16124f);max-width:none;padding-left:max(22px,calc((100vw - 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