:root{--bg-a:#f7f2e9;--bg-b:#f2f7f3;--panel:#ffffff;--ink:#1d2a35;--ink-soft:#5a6773;--line:#d7e0e7;--accent:#0e9f6e;--accent-dark:#0b7f58;--danger:#b42318}*{box-sizing:border-box}body,html{margin:0;padding:0;color:var(--ink);background:radial-gradient(circle at 0 0,var(--bg-a),transparent 40%),radial-gradient(circle at 100% 100%,var(--bg-b),transparent 50%),#eef2f4;font-family:Segoe UI,Arial,sans-serif}a{color:inherit}.page{min-height:100vh;padding:24px}.card{max-width:860px;margin:0 auto;border:1px solid var(--line);border-radius:18px;background:var(--panel);box-shadow:0 14px 35px rgba(25,45,60,.09);overflow:hidden}.card-body{padding:24px}.topbar{padding:18px 24px;border-bottom:1px solid var(--line);background:linear-gradient(130deg,#f8fcfb,#f6f8fc)}.title{margin:0;font-size:26px}.subtitle{margin:8px 0 0;color:var(--ink-soft)}.grid{display:grid;grid-gap:12px;gap:12px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.label{font-size:14px;font-weight:600;margin-bottom:6px;display:inline-block}.input,.select,.textarea{width:100%;border:1px solid var(--line);background:#fbfdfe;border-radius:10px;padding:10px 12px;font-size:15px}.textarea{resize:vertical;min-height:90px}.actions{display:flex;gap:10px;margin-top:14px;flex-wrap:wrap}.btn{border:0;border-radius:10px;padding:10px 14px;font-weight:600;cursor:pointer;background:var(--accent);color:#fff}.btn:hover{background:var(--accent-dark)}.btn-secondary{background:#dce8f0;color:#1a3b50}.btn-secondary:hover{background:#cbdde9}.notice{border-radius:10px;border:1px solid #d4f2e5;background:#f1fcf7}.error,.notice{margin-top:14px;padding:10px 12px}.error{border-radius:10px;border:1px solid #f8d5d2;background:#fff5f5;color:var(--danger)}.code{margin-top:14px;background:#f4f7f9;border:1px solid var(--line);border-radius:10px;padding:12px;overflow:auto;font-size:13px}.muted{color:var(--ink-soft)}.sigWrap{border:1px dashed #9db6c8;border-radius:10px;background:#fbfdff;overflow:hidden;margin-top:8px}.sign-layout{display:grid;grid-template-columns:minmax(0,1.3fr) minmax(320px,.8fr);grid-gap:16px;gap:16px;align-items:start}.paper{border:1px solid #d9d9d9;border-radius:14px;background:#fff;box-shadow:0 8px 28px rgba(0,0,0,.06);overflow:hidden}.paper-head{padding:14px 16px;border-bottom:2px solid #e3e3e3;background:linear-gradient(180deg,#fafafa,#f4f4f4)}.paper-title{margin:0;font-size:20px;font-family:Times New Roman,David,serif}.paper-subtitle{margin:6px 0 0;color:#666;font-size:13px}.paper-body{padding:10px;overflow:auto}.form-panel{border:1px solid #d8dfe4;border-radius:14px;background:#fff;box-shadow:0 8px 25px rgba(22,46,69,.08);padding:14px;position:-webkit-sticky;position:sticky;top:10px}.rtl{direction:rtl;text-align:right}@media (max-width:760px){.grid-2{grid-template-columns:1fr}.page{padding:12px}.card-body,.topbar{padding:16px}.sign-layout{grid-template-columns:1fr}.form-panel{position:static}}