:root{--blue:#2563eb;--orange:#f97316;--bg:#f6f8fc;--card:#fff;--text:#172033;--muted:#667085;--border:#e5e7eb;--danger:#dc2626;--ok:#16a34a}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--bg);color:var(--text)}.app{display:flex;min-height:100vh}.sidebar{width:280px;background:linear-gradient(180deg,#fff 0%,#fff7ed 100%);border-right:1px solid var(--border);padding:22px;display:flex;flex-direction:column;gap:20px;position:sticky;top:0;height:100vh}.brand{display:flex;gap:12px;align-items:center}.logo{width:46px;height:46px;border-radius:14px;background:linear-gradient(135deg,var(--orange),var(--blue));color:#fff;display:grid;place-items:center;font-weight:800}.brand h1{font-size:18px;margin:0}.brand p{margin:4px 0 0;color:var(--muted);font-size:12px}.nav{display:grid;gap:10px}.nav-item{border:1px solid var(--border);background:#fff;color:var(--text);text-align:left;border-radius:14px;padding:13px 14px;font-size:15px;cursor:pointer}.nav-item.active,.nav-item:hover{border-color:#93c5fd;background:#eff6ff;color:#1d4ed8}.side-note{margin-top:auto;border:1px solid #fed7aa;background:#fff7ed;border-radius:16px;padding:14px;display:grid;gap:4px}.side-note span{font-size:12px;color:var(--muted)}.main{flex:1;padding:26px;min-width:0}.topbar{display:flex;justify-content:space-between;gap:16px;align-items:center;margin-bottom:20px}.topbar h2{margin:0;font-size:26px}.topbar p{margin:6px 0 0;color:var(--muted)}.status-pill{background:#ecfdf5;color:#047857;border:1px solid #bbf7d0;border-radius:999px;padding:8px 12px;font-size:13px}.page{display:none}.page.active{display:block}.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-bottom:16px}.stat{background:var(--card);border:1px solid var(--border);border-radius:18px;padding:18px}.stat span{display:block;color:var(--muted);font-size:13px}.stat b{display:block;margin-top:8px;font-size:28px}.grid{display:grid;gap:16px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.card{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:18px;box-shadow:0 10px 30px rgba(15,23,42,.04)}.card h3{margin:0 0 12px}.muted{color:var(--muted);line-height:1.7}.steps{line-height:2;color:#344054}.area{width:100%;min-height:220px;resize:vertical}.area.tall{min-height:360px}.mono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}.input,textarea{border:1px solid var(--border);border-radius:14px;padding:12px;background:#fff;color:var(--text);outline:none}.input:focus,textarea:focus{border-color:#93c5fd;box-shadow:0 0 0 3px #dbeafe}.input.small{width:150px}.actions{display:flex;gap:10px;margin-top:12px}.actions.wrap{flex-wrap:wrap}button{border:1px solid var(--border);background:#fff;border-radius:12px;padding:10px 14px;cursor:pointer;color:var(--text)}button.primary{background:var(--blue);border-color:var(--blue);color:#fff}button.danger{border-color:#fecaca;color:var(--danger);background:#fff5f5}button:hover{filter:brightness(.98)}input[type=file]{max-width:260px}.form-row{display:flex;gap:14px;flex-wrap:wrap;align-items:end}.form-row label{display:grid;gap:6px;color:var(--muted);font-size:13px}.table-wrap{overflow:auto;margin-top:14px;border:1px solid var(--border);border-radius:16px}table{width:100%;border-collapse:collapse;background:#fff}th,td{padding:12px;border-bottom:1px solid var(--border);text-align:left}th{background:#f8fafc;font-size:13px;color:#475467}.empty{text-align:center;color:var(--muted)}.ok{color:var(--ok)}.bad{color:var(--danger)}@media(max-width:900px){.app{display:block}.sidebar{position:relative;width:auto;height:auto}.main{padding:16px}.stats,.grid.two{grid-template-columns:1fr}.topbar{align-items:flex-start;flex-direction:column}.nav{grid-template-columns:repeat(2,minmax(0,1fr))}}