:root{--bg: #f6f7f9;--card: #ffffff;--bd: #e3e7ee;--fg: #1a202c;--mut: #718096;--pri: #2456e6;--pri-h: #1c46bd;--ok: #1f7a4d;--bad: #b93c3c;--warn: #9a6700;--mono: ui-monospace, "SFMono-Regular", Menlo, monospace}*{box-sizing:border-box}body{margin:0;font:15px/1.65 -apple-system,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;color:var(--fg);background:var(--bg)}.shell{max-width:1080px;margin:0 auto;padding:20px 24px 60px}.mono{font-family:var(--mono);word-break:break-all}.mut{color:var(--mut)}.small{font-size:13px}.ok{color:var(--ok)}.bad{color:var(--bad)}.warn{color:var(--warn)}.topbar{display:flex;align-items:center;gap:22px;padding:10px 0 18px}.logo{font-weight:800;font-size:17px;letter-spacing:.3px}.topbar nav{display:flex;gap:14px;flex:1}.topbar nav a{color:var(--mut);text-decoration:none;padding:4px 2px}.topbar nav a.active{color:var(--fg);border-bottom:2px solid var(--pri)}.connect-group{display:flex;gap:8px;align-items:center}.chip{background:#eef1f7;border-radius:6px;padding:3px 8px;font-size:13px}.chain-seg{display:inline-flex;border:1px solid var(--bd);border-radius:8px;overflow:hidden;background:#fff;flex-shrink:0}.chain-seg button{font:inherit;font-size:13px;padding:5px 12px;border:none;background:#fff;color:var(--mut);cursor:pointer;white-space:nowrap}.chain-seg button+button{border-left:1px solid var(--bd)}.chain-seg button:not(.on):hover{background:#f0f3f9}.chain-seg button.on{background:var(--pri);color:#fff}.hero h1{font-size:26px;margin:16px 0 6px}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px;margin-top:18px}.panel{background:var(--card);border:1px solid var(--bd);border-radius:12px;padding:16px 18px;margin-bottom:16px}.panel header{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;margin-bottom:10px}.panel 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var(--pri)}table{border-collapse:collapse;width:100%;font-size:13px}th,td{border-bottom:1px solid var(--bd);padding:7px 8px;text-align:left;word-break:break-all}th{color:var(--mut);font-weight:500}.actions{display:flex;gap:10px;margin-top:12px;align-items:center}.modal-mask{position:fixed;top:0;right:0;bottom:0;left:0;background:#10162473;display:flex;align-items:center;justify-content:center;z-index:50}.modal{background:#fff;border-radius:14px;padding:22px 26px;min-width:320px;max-width:460px}.modal h3{margin:0 0 6px}.modal-sub{margin:0 0 10px}.modal button{margin-top:8px}footer.topbar{justify-content:center;padding-top:24px}.hero.small-hero h1{font-size:21px}.order-detail{display:flex;flex-direction:column;gap:4px}.markdown h2{font-size:17px;margin:14px 0 6px}.markdown h3{font-size:15px;margin:12px 0 4px}.markdown p{margin:6px 0}.markdown ul{padding-left:20px;margin:6px 0}.markdown code{background:#eef1f7;border-radius:4px;padding:1px 5px;font-family:var(--mono);font-size:13px}.markdown pre{background:#0b1021;color:#cbd5e0;border-radius:8px;padding:10px 12px;overflow:auto;font-family:var(--mono);font-size:12px}.markdown pre code{background:none;color:inherit;padding:0}.markdown a{color:var(--pri)}.qr-box{background:#fff;border:1px solid #dbe5ff;border-radius:10px;padding:10px;display:inline-flex;flex-shrink:0}.flow-grid{display:grid;grid-template-columns:1fr 1fr;gap:34px 46px;margin-top:16px;align-items:stretch}.flow-block{position:relative;background:var(--card);border:1px solid var(--bd);border-radius:12px;padding:14px 16px}.flow-block.active{border-color:var(--pri);box-shadow:0 0 0 3px #e5ecff}.flow-block.done{border-color:#bfe3d0}.flow-block.locked{opacity:.6}.flow-block.locked .flow-body{pointer-events:none;opacity:.5}.flow-head{display:flex;align-items:center;gap:10px;margin-bottom:8px}.flow-head 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