:root{--ink:#0f172a;--mute:#64748b;--line:#e2e8f0;--bg:#f8fafc;--acc:#3b5bdb;--accl:#eef2ff;--ok:#16a34a}
*{box-sizing:border-box;margin:0}
body{font-family:system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--bg);line-height:1.5}
a{color:inherit;text-decoration:none}
.top{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.top div{max-width:1100px;margin:auto;padding:14px 20px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px}
.logo{font-weight:700;font-size:20px;letter-spacing:-.5px}.logo b{color:var(--acc)}
nav a{padding:7px 14px;border-radius:8px;color:var(--mute);font-size:15px}
nav a:hover{background:var(--bg)}nav a.on{background:var(--accl);color:var(--acc);font-weight:600}
main{max-width:1100px;margin:auto;padding:30px 20px 60px}
h1{font-size:30px;letter-spacing:-.8px}h2{font-size:19px;margin-bottom:6px}.sub{color:var(--mute);margin:6px 0 24px}
.hero{background:var(--ink);color:#fff;padding:80px 20px;text-align:center}
.hero h1{font-size:46px;max-width:720px;margin:auto;line-height:1.1}
.hero p{color:#94a3b8;max-width:560px;margin:18px auto 30px;font-size:18px}
.btn{display:inline-block;padding:12px 24px;border-radius:10px;font-weight:600;border:1px solid var(--acc);background:var(--acc);color:#fff;cursor:pointer;font-size:15px}
.btn:hover{opacity:.9}.btn.out{background:transparent;border-color:#475569;color:#fff;margin-left:8px}
.btn.big{padding:16px 40px;font-size:17px}.btn:disabled{background:#cbd5e1;border-color:#cbd5e1;cursor:not-allowed}
.btn.light{background:#fff;color:var(--ink);border-color:var(--line)}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px;margin-bottom:20px}
.grid{display:grid;gap:18px}.g4{grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}.g2{grid-template-columns:repeat(auto-fit,minmax(320px,1fr))}.g5{grid-template-columns:repeat(auto-fit,minmax(170px,1fr))}
.stat .n{font-size:32px;font-weight:700;color:var(--acc)}.stat .l{color:var(--mute);font-size:14px}
.bar{display:flex;align-items:center;gap:10px;margin:12px 0;font-size:14px}.bar span:first-child{width:130px}
.bar i{display:block;height:16px;background:var(--acc);border-radius:4px}.bar .t{flex:1}
.cols{display:flex;align-items:flex-end;gap:22px;height:190px;padding-top:10px;border-bottom:1px solid var(--line)}
.cols div{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;height:100%}
.cols p{display:flex;align-items:flex-end;gap:4px;height:100%}.cols i{width:14px;border-radius:4px 4px 0 0;background:var(--acc)}
.cols i:nth-child(2){background:#7c93f0}.cols i:nth-child(3){background:#c3cffa}
.lab{display:flex;gap:22px;font-size:12px;color:var(--mute);margin-top:6px}.lab span{flex:1;text-align:center}
.step .n{width:34px;height:34px;border-radius:50%;background:var(--accl);color:var(--acc);font-weight:700;display:flex;align-items:center;justify-content:center;margin-bottom:10px}
.step p{color:var(--mute);font-size:14px}
.steps{display:flex;gap:8px;margin-bottom:28px;flex-wrap:wrap}
.steps span{flex:1;min-width:110px;padding:10px;border-radius:10px;background:#fff;border:1px solid var(--line);text-align:center;font-size:14px;color:var(--mute)}
.steps .done{color:var(--ok)}.steps .now{background:var(--acc);color:#fff;border-color:var(--acc);font-weight:600}
.drop{border:2px dashed #cbd5e1;border-radius:14px;background:#fff;padding:50px 20px;text-align:center;cursor:pointer}
.drop:hover,.drop.over{border-color:var(--acc);background:var(--accl)}.drop b{font-size:20px;display:block}.drop u{color:var(--acc)}
.ok{color:var(--ok);font-weight:600}.hide{display:none}
.tbl{overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:14px}
th{background:var(--bg);text-align:left;padding:9px 12px;border-bottom:1px solid var(--line)}td{padding:9px 12px;border-bottom:1px solid var(--line)}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}
.chip{border:1px solid var(--line);border-radius:8px;padding:7px 12px;font-size:14px;cursor:pointer;background:#fff;display:flex;gap:7px;align-items:center}
.chip:has(input:checked){background:var(--accl);border-color:var(--acc)}
input[type=text],select{padding:10px 12px;border:1px solid var(--line);border-radius:8px;font-size:15px;min-width:220px;background:#fff}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.mute{color:var(--mute);font-size:14px}
.pick{border:2px solid var(--line);border-radius:14px;padding:22px;cursor:pointer;background:#fff}
.pick.on{border-color:var(--acc);background:var(--accl)}.pick b{font-size:18px;display:block}.pick span{color:var(--mute);font-size:14px}
.split{display:flex;height:34px;border-radius:8px;overflow:hidden;margin-top:14px;font-size:13px;color:#fff;font-weight:600}
.split div{display:flex;align-items:center;justify-content:center}
.sum{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:16px}.sum small{color:var(--mute);display:block}.sum b{font-weight:600}
.res img{width:100%;border-radius:8px}.err{color:#b91c1c;margin-top:12px}
@media(max-width:600px){.hero h1{font-size:32px}}