:root{--brand:#5b21b6;--brand2:#7c3aed;--accent:#f59e0b;--accent2:#ef4444;--ink:#1e1b2e;--muted:#6b7280;--bg:#faf9ff;--card:#fff;--line:#ece9f5;--ok:#16a34a}
*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}
body{font-family:'Be Vietnam Pro',system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.7}
a{color:var(--brand2);text-decoration:none}a:hover{text-decoration:underline}
.wrap{max-width:780px;margin:0 auto;padding:0 20px}
header{background:rgba(255,255,255,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.nav{display:flex;align-items:center;justify-content:space-between;height:62px;max-width:1100px;margin:0 auto;padding:0 20px}
.logo{font-weight:800;font-size:20px;color:var(--brand)}.logo span{color:var(--accent)}
.btn{display:inline-flex;align-items:center;gap:8px;font-weight:700;border:none;cursor:pointer;border-radius:12px;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;padding:13px 26px;font-size:16px;box-shadow:0 8px 20px rgba(239,68,68,.28);transition:.2s}
.btn:hover{transform:translateY(-2px);text-decoration:none;color:#fff}
.btn.sm{padding:9px 18px;font-size:14px}
.crumb{font-size:13px;color:var(--muted);padding:18px 0 0}
article{padding:14px 0 50px}
h1{font-size:34px;font-weight:800;line-height:1.2;margin:10px 0 16px;letter-spacing:-.5px}
.meta{color:var(--muted);font-size:14px;margin-bottom:24px;display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.meta .badge{background:#f0fdf4;color:var(--ok);border:1px solid #bbf7d0;padding:3px 10px;border-radius:999px;font-weight:600;font-size:12px}
article h2{font-size:24px;font-weight:800;margin:36px 0 12px;letter-spacing:-.3px}
article h3{font-size:18px;font-weight:700;margin:22px 0 8px}
article p{margin:12px 0;font-size:16.5px}
article ul,article ol{margin:12px 0 12px 22px}article li{margin:7px 0;font-size:16px}
.verdict{background:linear-gradient(135deg,#f5f3ff,#faf5ff);border:1px solid #ddd6fe;border-radius:16px;padding:24px;margin:24px 0}
.verdict .score{display:flex;align-items:center;gap:14px;margin-bottom:10px}
.verdict .num{font-size:40px;font-weight:800;color:var(--brand)}
.verdict .stars{color:var(--accent);font-size:18px}
.verdict .num small{font-size:18px;color:var(--muted);font-weight:600}
.callout{border-radius:14px;padding:18px 20px;margin:18px 0;font-size:16px}
.callout.tip{background:#f0fdf4;border:1px solid #bbf7d0}
.callout.warn{background:#fef2f2;border:1px solid #fecaca}
.callout b{display:block;margin-bottom:4px}
.cols2{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:18px 0}
@media(max-width:600px){.cols2{grid-template-columns:1fr}}
.box{border-radius:14px;padding:20px}
.box.pro{background:#f0fdf4;border:1px solid #bbf7d0}
.box.con{background:#fff7ed;border:1px solid #fed7aa}
.box h3{margin-top:0}
.box ul{margin-left:18px}.box li{font-size:15px}
table{width:100%;border-collapse:collapse;margin:18px 0;font-size:15px}
th,td{border:1px solid var(--line);padding:10px 12px;text-align:left}
th{background:#f5f3ff;font-weight:700}
tr:nth-child(even) td{background:#fafafe}
.cta-box{background:linear-gradient(135deg,#6d28d9,#4c1d95);color:#fff;border-radius:18px;padding:30px;text-align:center;margin:30px 0}
.cta-box h3{color:#fff;font-size:22px;margin:0 0 6px}
.cta-box p{opacity:.9;margin:0 0 18px}
.cta-box .btn{background:#fff;color:var(--brand)}
.courses{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:18px 0}
@media(max-width:600px){.courses{grid-template-columns:1fr}}
.c{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;display:flex;flex-direction:column}
.c img{width:100%;aspect-ratio:16/10;object-fit:cover}
.c .cb{padding:12px;display:flex;flex-direction:column;gap:8px;flex:1}
.c h4{font-size:14.5px;line-height:1.4;font-weight:600;flex:1}
.c .pr{font-weight:800;color:var(--brand)}.c .pr s{color:var(--muted);font-weight:500;font-size:13px;margin-left:6px}
.c .btn{justify-content:center;padding:9px;font-size:13px;border-radius:9px}
details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:2px 18px;margin:10px 0}
summary{cursor:pointer;font-weight:600;padding:14px 0;list-style:none;display:flex;justify-content:space-between;gap:10px}
summary::-webkit-details-marker{display:none}summary::after{content:'+';color:var(--brand2);font-size:20px}
details[open] summary::after{content:'–'}
details p{padding:0 0 14px;margin:0;color:#444;font-size:15.5px}
.related{display:flex;gap:12px;flex-wrap:wrap;margin:18px 0}
.related a{background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 16px;font-weight:600;font-size:14px;color:var(--ink)}
.related a:hover{border-color:var(--brand2);color:var(--brand2);text-decoration:none}
.disclosure{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px;font-size:13px;color:var(--muted);margin-top:30px;line-height:1.6}
footer{background:#1a1726;color:#cfc9e0;padding:30px 0;font-size:14px;text-align:center}
footer a{color:#cfc9e0}