/* DuDuanAI – tím huyền bí */
:root{--bg:#0d0920;--panel:#151030;--panel2:#1d1640;--line:#2f2560;--text:#f1edff;--muted:#a59cc9;--lime:#a78bfa;--ink:#ffffff;--amber:#fbbf24;--acc-rgb:167,139,250;--acc2:#7c3aed;--bg-rgb:13,9,32;--line-rgb:47,37,96;--p2-rgb:29,22,64;--hi-rgb:255,255,255;--body:#d4cdf0;--cta1:#4c1d95;--cta2:#1e1045;--cta-line:#6d28d9;--cta-text:#ddd6fe;--font-h:'Josefin Sans';--ai1:#c084fc;--ai2:#7c3aed;--ai-rgb:160,100,250;--pd:#5b5280;--pa:#38bdf8;--r:16px}
body{background:radial-gradient(900px 500px at 50% -20%,rgba(124,58,237,.30),transparent 62%) no-repeat,var(--bg)}
h1,h2,h3,.mh1,.sec-h h2,.box h3{font-family:var(--font-h),var(--font),sans-serif;font-weight:700;letter-spacing:-.2px}
.hero h1{font-size:clamp(34px,5.2vw,56px);line-height:1.08}
h1 em{font-style:normal;background:linear-gradient(90deg,#e9d5ff,#a78bfa 45%,#7c3aed);-webkit-background-clip:text;background-clip:text;color:transparent}
.btn-lime{background:linear-gradient(120deg,#c084fc,#7c3aed);color:#fff}
.btn-reg{box-shadow:0 0 24px rgba(167,139,250,.45)}
.feat{border-color:rgba(167,139,250,.35);box-shadow:0 0 0 1px rgba(124,58,237,.2),0 24px 60px rgba(76,29,149,.35)}
.tag{background:rgba(167,139,250,.15);color:#c4b5fd}
.chip.on,.chip:hover{background:linear-gradient(120deg,#c084fc,#7c3aed);border-color:transparent;color:#fff}
.lg-h{background:linear-gradient(90deg,rgba(167,139,250,.14),var(--panel2))}
.art h2,.entry h2{border-left-color:#a78bfa}
.logo .mark{width:46px;height:46px;filter:drop-shadow(0 0 16px rgba(167,139,250,.5))}