:root{
  --ink:#1a1a1a; --muted:#6b7280; --line:#e2e2e2; --bg:#f5f5f4;
  --brand:#1f3a5f; --brand2:#2f5d8a; --gold:#b08d57; --danger:#b23b3b;
  --ok:#2f7d4f; --radius:10px;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.7;font-size:15px}
a{color:var(--brand2)}
.wrap{max-width:920px;margin:0 auto;padding:24px 18px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;margin-bottom:18px}
.btn{display:inline-block;background:var(--brand);color:#fff;border:none;border-radius:8px;
  padding:11px 20px;font-size:15px;cursor:pointer;text-decoration:none;font-weight:600}
.btn:hover{background:var(--brand2)}
.btn:disabled{background:#b9c0c9;cursor:not-allowed}
.btn.gold{background:var(--gold)}
.btn.ghost{background:#fff;color:var(--brand);border:1px solid var(--brand)}
.btn.sm{padding:6px 12px;font-size:13px}
.btn.danger{background:var(--danger)}
label{display:block;font-weight:600;margin:12px 0 5px;font-size:14px}
input[type=text],input[type=password],input[type=date],input[type=number],select,textarea{
  width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:8px;font-size:15px;
  font-family:inherit;background:#fff}
textarea{resize:vertical;min-height:70px}
.row{display:flex;gap:14px;flex-wrap:wrap}
.row>div{flex:1;min-width:200px}
.hint{color:var(--muted);font-size:13px}
.pill{display:inline-block;padding:2px 9px;border-radius:99px;font-size:12px;font-weight:600}
.pill.active{background:#e7f0e9;color:var(--ok)}
.pill.used{background:#eef1f5;color:var(--brand2)}
.pill.void{background:#f3e7e7;color:var(--danger)}
table.list{width:100%;border-collapse:collapse;font-size:14px}
table.list th,table.list td{text-align:left;padding:9px 8px;border-bottom:1px solid var(--line);vertical-align:top}
table.list th{color:var(--muted);font-weight:600;font-size:13px}
.flash{padding:11px 14px;border-radius:8px;margin-bottom:14px;font-size:14px}
.flash.ok{background:#e7f0e9;color:var(--ok)}
.flash.err{background:#f7e8e8;color:var(--danger)}
.linkbox{background:#f0f4f8;border:1px dashed var(--brand2);border-radius:8px;padding:12px;
  word-break:break-all;font-family:ui-monospace,monospace;font-size:13px}
h1.top{font-size:22px;color:var(--brand);margin:0 0 4px}
.sub{color:var(--muted);font-size:14px;margin:0 0 20px}

/* ===== 合同正文排版（网页与 PDF 共用） ===== */
.contract{background:#fff;color:#111;font-size:14px;line-height:1.9}
.contract h1{text-align:center;font-size:20px;margin:0 0 18px}
.contract h2{font-size:16px;margin:20px 0 8px;border-left:4px solid var(--brand);padding-left:8px}
.contract h3{font-size:15px;margin:18px 0 6px}
.contract p{margin:7px 0;text-align:justify}
.contract .risk{background:#fbf6ee;border:1px solid var(--gold);border-radius:8px;padding:12px 14px;
  font-size:13px;margin:12px 0 18px}
.contract table.party{border-collapse:collapse;margin:6px 0}
.contract table.party td{padding:4px 8px 4px 0;vertical-align:bottom}
.contract table.party td:first-child{white-space:nowrap;color:#333}
.fill{display:inline-block;min-width:120px;border-bottom:1px solid #888;padding:0 6px;
  font-weight:600;color:var(--brand)}
.sign-section{margin-top:30px;border-top:1px solid var(--line);padding-top:16px}
.nobody{text-align:center;color:var(--muted)}
.sign-row{display:flex;gap:40px;margin-top:14px}
.sign-col{flex:1}
.sig-img{max-height:90px;max-width:100%;display:block;margin:6px 0}
.sig-blank{height:70px;border-bottom:1px solid #888;margin:6px 0;
  display:flex;align-items:flex-end;color:#555;font-weight:600}
.audit{margin-top:26px;border:1px solid var(--line);border-radius:8px;padding:12px 14px;
  background:#fafafa;font-size:12px;color:#444}
.audit-title{font-weight:700;color:var(--brand);margin-bottom:6px}
.audit table{border-collapse:collapse;width:100%}
.audit td{padding:3px 8px 3px 0;vertical-align:top}
.audit td:first-child{color:var(--muted);white-space:nowrap;width:90px}
.audit .hash,.audit td{word-break:break-all}
.audit-note{margin-top:6px;color:var(--muted)}

/* 签署页专用 */
.reading{max-height:60vh;overflow-y:auto;border:1px solid var(--line);border-radius:8px;
  padding:18px 20px;background:#fff}
.readbar{font-size:13px;color:var(--muted);margin:8px 2px}
.ack{display:flex;gap:9px;align-items:flex-start;margin:16px 0;font-weight:600}
.ack input{width:auto;margin-top:4px}
.sigpad-wrap{border:1px solid var(--line);border-radius:8px;background:#fff;position:relative}
canvas#sigpad{width:100%;height:180px;display:block;touch-action:none;border-radius:8px}
.sigpad-hint{position:absolute;left:12px;top:10px;color:#bbb;font-size:13px;pointer-events:none}
@media print{body{background:#fff}.wrap{max-width:none;padding:0}}