:root{--bg:#F5F6FB;--ink:#171A2C;--muted:#667085;--line:#E4E7F2;--a:#5B4BFF;--b:#FF6B5A;--grad:linear-gradient(135deg,#5B4BFF,#8A5CFF 55%,#B65CFF)}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,"SF Pro Display","Segoe UI",system-ui,-apple-system,sans-serif;line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:var(--a)}
.top{max-width:860px;margin:0 auto;padding:16px;display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.15rem;letter-spacing:-.02em;color:var(--ink);text-decoration:none}
.logo i{position:relative;width:28px;height:28px;display:inline-block}
.logo i::before,.logo i::after{content:"";position:absolute;width:15px;height:24px;border-radius:6px}
.logo i::before{left:0;top:3px;background:var(--a);transform:rotate(-8deg)}
.logo i::after{left:11px;top:1px;background:var(--b);opacity:.92;transform:rotate(7deg)}
.top nav{display:flex;gap:16px;flex-wrap:wrap;font-weight:600;font-size:.92rem}
.top nav a{color:var(--ink);text-decoration:none}.top nav a:hover{color:var(--a)}
main{max-width:860px;margin:0 auto;padding:8px 16px 40px}
article,.card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:22px;box-shadow:0 1px 2px rgba(23,26,44,.04),0 12px 32px rgba(23,26,44,.07)}
h1{font-size:clamp(1.7rem,5.5vw,2.4rem);line-height:1.12;letter-spacing:-.03em;margin:6px 0 12px}
h2{font-size:1.3rem;letter-spacing:-.02em;margin:28px 0 8px}
p,li{font-size:1.02rem}
.crumbs{font-size:.85rem;color:var(--muted);margin:4px 0 12px}
.crumbs a{color:var(--muted)}
.lead{font-size:1.12rem;color:#2A2E49}
.fig{margin:18px 0;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#fff}
.fig svg{display:block;width:100%;height:auto}
table{width:100%;border-collapse:collapse;margin:12px 0;font-variant-numeric:tabular-nums}
th,td{padding:10px 8px;text-align:right;border-bottom:1px solid var(--line)}
th:first-child,td:first-child{text-align:left}
th.a{color:var(--a)}th.b{color:#D9442F}
.btn{display:inline-block;background:var(--grad);color:#fff;text-decoration:none;font-weight:700;padding:12px 18px;border-radius:14px;box-shadow:0 6px 16px rgba(91,75,255,.28);margin:6px 8px 6px 0}
.btn.alt{background:#fff;color:var(--ink);border:1.5px solid var(--line);box-shadow:none}
ul.links{padding-left:20px}ul.links li{margin:6px 0}
.pairs{list-style:none;padding:0;display:grid;gap:8px;grid-template-columns:1fr}
@media(min-width:640px){.pairs{grid-template-columns:1fr 1fr}}
.pairs a{display:block;padding:12px 14px;border:1px solid var(--line);border-radius:14px;text-decoration:none;color:var(--ink);font-weight:600}
.pairs a small{display:block;color:var(--muted);font-weight:500}
.pairs a:hover{border-color:#B9BEDC}
.adwrap{margin:22px 0;min-height:280px;text-align:center}
.adlabel{font-size:.72rem;color:var(--muted);text-transform:uppercase;letter-spacing:.08em;margin-bottom:4px}
footer{max-width:860px;margin:0 auto;padding:6px 16px 40px;color:var(--muted);font-size:.88rem}
footer nav{display:flex;gap:6px 18px;flex-wrap:wrap;margin-bottom:8px;font-weight:600}
footer a{color:var(--muted)}
.note{font-size:.9rem;color:var(--muted)}