.atq{--ink:#0b1020;--ink-2:#141a2e;--blue:#2e37e6;--blue-600:#2129c9;--volt:#14cf6a;--volt-glow:#37e888;--lav:#edefff;--paper:#f5f7fe;--card:#fff;--line:#e6e9f4;--muted:#565e78;--muted-2:#8a90a8;--display:var(--font-display),"Inter Tight",system-ui,sans-serif;--body:var(--font-sans),"Inter",system-ui,sans-serif;--shadow:0 20px 50px -20px rgba(20,26,46,.28);--shadow-sm:0 8px 24px -12px rgba(20,26,46,.22)}.atq *{box-sizing:border-box;margin:0;padding:0}.atq{scroll-behavior:smooth;font-family:var(--body);color:var(--ink);background:var(--paper);line-height:1.55;-webkit-font-smoothing:antialiased;overflow-x:hidden;min-height:100vh}.atq a{color:inherit;text-decoration:none}.wrap{max-width:1180px;margin:0 auto;padding:0 24px}.blob{position:fixed;border-radius:50%;filter:blur(90px);opacity:.5;z-index:0;pointer-events:none}.blob.b1{width:520px;height:520px;background:#c9cdff;top:-160px;right:-120px}.blob.b2{width:460px;height:460px;background:#bef5d8;top:340px;left:-180px;opacity:.45}.nav{position:sticky;top:0;z-index:50;transition:background .3s,box-shadow .3s,border-color .3s;border-bottom:1px solid transparent}.nav.scrolled{background:rgba(245,247,254,.82);backdrop-filter:blur(14px);border-bottom-color:var(--line)}.nav .row{justify-content:space-between;height:72px}.brand,.nav .row{display:flex;align-items:center}.brand{gap:10px;font-family:var(--display);font-weight:800;font-size:1.2rem;letter-spacing:-.01em}.brand svg{width:30px;height:30px;flex:none}.nav-links{display:flex;gap:32px;font-weight:500;font-size:.95rem;color:var(--muted)}.nav-links a{position:relative;transition:color .2s}.nav-links a:hover{color:var(--ink)}.nav-links 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.who{font-weight:600;font-size:.98rem;display:flex;align-items:center;gap:7px}.dot-on{width:8px;height:8px;border-radius:50%;background:var(--volt);box-shadow:0 0 0 3px rgba(20,207,106,.25)}.chat-head .status{font-size:.78rem;color:#a9b0c9}.chat-body{padding:20px 16px;height:360px;background:#f7f8fc;display:flex;flex-direction:column;gap:10px;overflow:hidden}.msg{max-width:80%;padding:10px 14px;font-size:.9rem;line-height:1.4;border-radius:16px;opacity:0;transform:translateY(10px);animation:pop .35s forwards}@keyframes pop{to{opacity:1;transform:none}}.msg.in{align-self:flex-start;background:#fff;border:1px solid var(--line);border-bottom-left-radius:5px;color:var(--ink)}.msg.out{align-self:flex-end;background:#dcf6e6;border-bottom-right-radius:5px;color:#0d3b23}.msg .t{display:block;font-size:.68rem;color:var(--muted-2);margin-top:4px;text-align:right}.typing{align-self:flex-end;background:#dcf6e6;padding:12px 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.tag{color:var(--blue)}.sec-head h2{font-family:var(--display);font-weight:800;font-size:clamp(1.8rem,3.6vw,2.5rem);letter-spacing:-.02em;line-height:1.1;color:var(--ink)}.sec-head p{color:var(--muted);margin-top:12px;font-size:1.05rem}.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:26px 22px;transition:transform .25s,box-shadow .25s,border-color .25s;position:relative;overflow:hidden}.card:before{content:"";position:absolute;inset:0;border-radius:20px;padding:1px;background:linear-gradient(135deg,var(--blue),var(--volt));-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:opacity .25s}.card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}.card:hover:before{opacity:1}.card:hover .ic{transform:scale(1.08) 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