:root{
  --bg:#f7faf9; --card:#fff; --ink:#0f172a; --muted:#475569; --line:#dbe4e6;
  --brand:#0f766e; --brand2:#14b8a6; --shadow:0 12px 30px rgba(15,23,42,.08);
}
*{box-sizing:border-box} html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,system-ui,Arial,sans-serif;background:linear-gradient(180deg,#f7faf9 0%,#eef7f6 100%);color:var(--ink)}
a{text-decoration:none;color:inherit} .container{width:min(1120px,calc(100% - 32px));margin:0 auto}
.topbar{position:sticky;top:0;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);z-index:10}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:12px;font-weight:800}.badge{width:42px;height:42px;border-radius:12px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,var(--brand),var(--brand2))}
.nav-links,.nav-cta{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 18px;border-radius:14px;border:1px solid transparent;font-weight:700;cursor:pointer}
.btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:var(--shadow)}
.btn-secondary{background:#fff;border-color:var(--line)} .btn-danger{background:#fff;border-color:#fca5a5;color:#991b1b}
.hero{padding:72px 0 44px}.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:center}
h1{font-size:clamp(2.2rem,5vw,4.2rem);line-height:1.03;margin:12px 0}.lead{font-size:1.1rem;line-height:1.7;color:var(--muted)}
.card{background:var(--card);border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow);padding:22px}
.grid-2,.grid-3{display:grid;gap:18px}.grid-2{grid-template-columns:repeat(2,1fr)} .grid-3{grid-template-columns:repeat(3,1fr)}
.section{padding:60px 0}.muted{color:var(--muted)} .pill{display:inline-flex;padding:8px 12px;border:1px solid var(--line);border-radius:999px;background:#f8fafc;font-size:.92rem;font-weight:700}
.form{display:grid;gap:12px}.input, select, textarea{width:100%;padding:13px 14px;border-radius:14px;border:1px solid var(--line);font:inherit;background:#fff}
.kpi{padding:18px;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:var(--shadow)}
.table{width:100%;border-collapse:collapse}.table th,.table td{padding:10px;border-bottom:1px solid var(--line);text-align:left}
.notice{padding:14px 16px;border:1px solid #fed7aa;background:#fff7ed;color:#9a3412;border-radius:14px}
.success{padding:14px 16px;border:1px solid #bbf7d0;background:#ecfdf5;color:#166534;border-radius:14px}
.error{padding:14px 16px;border:1px solid #fecaca;background:#fef2f2;color:#991b1b;border-radius:14px}
.chat{position:fixed;right:18px;bottom:18px;width:min(380px,calc(100% - 28px));background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:0 24px 55px rgba(15,23,42,.18);overflow:hidden}
.chat-head{padding:14px 16px;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;font-weight:700}
.chat-body{padding:14px;background:#f8fafc;max-height:260px;overflow:auto}.msg{max-width:88%;padding:10px 12px;border-radius:14px;margin-bottom:10px}
.bot{background:#fff;border:1px solid var(--line)} .user{background:#dcfce7;margin-left:auto}
.chat-input{display:flex;gap:10px;padding:12px;border-top:1px solid var(--line)} .chat-input input{flex:1}
.lang-select{padding:10px 12px;border-radius:12px;border:1px solid var(--line);background:#fff}
.error:empty,.success:empty{display:none}
.btn:disabled{opacity:.6;cursor:not-allowed}
input:focus,select:focus,textarea:focus{outline:2px solid var(--brand2);outline-offset:-1px;border-color:var(--brand)}
.chat-head{cursor:pointer;display:flex;align-items:center;justify-content:space-between}
.chat-toggle{background:none;border:none;color:#fff;font-size:1.2rem;cursor:pointer;padding:0 2px;line-height:1;flex-shrink:0}
.chat.collapsed .chat-body,.chat.collapsed .chat-input{display:none}
.chat{transition:box-shadow .2s}
@media (max-width: 900px){.hero-grid,.grid-2,.grid-3{grid-template-columns:1fr}}