:root{--text:#1d1d1f;--muted:#86868b;--border:#e6edf5;--blue:#0a84ff;--bg:#f5f7fa;--card:#fff;--amber:#f2b84b;--red:#c62828;--green:#2e7d32}
*{box-sizing:border-box}
body{margin:0;min-height:100vh;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",Arial,sans-serif;color:var(--text);background:linear-gradient(135deg,#f8fbff,#f5f5f7)}
button,input{font:inherit}
.login{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px 16px}
.card{background:var(--card);border:1px solid var(--border);border-radius:12px;box-shadow:0 1px 2px rgba(0,0,0,.04)}
.login-card{width:100%;max-width:448px;border-radius:22px;box-shadow:0 14px 44px rgba(0,0,0,.1);padding:30px 26px}
h1{margin:0 0 12px;text-align:center;font-size:38px;line-height:1.16;letter-spacing:0}
.contact{text-align:center;color:var(--muted);font-weight:750;font-size:18px;line-height:1.45;margin-bottom:28px}
label{display:block;font-weight:750;font-size:18px;margin-bottom:10px}
input{width:100%;border:2px solid #d9e7f7;border-radius:14px;padding:14px 16px;font-size:18px;outline:none}
#code{text-transform:uppercase}
input:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(10,132,255,.1)}
.notice{margin:24px 0 18px;text-align:center;color:#4b5563;font-size:17px;line-height:1.7;background:#f5f9fc;border:1px dashed #cce0f0;border-radius:12px;padding:14px 16px;font-weight:750}
.limit{margin:0 0 20px;text-align:center;background:#fff8e8;border:1px dashed #f3d38a;border-radius:12px;padding:13px 16px;font-weight:850;font-size:18px}
.go{width:100%;border:0;border-radius:999px;padding:16px 18px;background:linear-gradient(135deg,#6b7280,#5aa9f0);color:#fff;font-weight:850;font-size:22px;cursor:pointer}
.status{min-height:24px;text-align:center;color:var(--muted);font-size:16px;font-weight:750;margin-top:16px;line-height:1.5}
.status.error{color:var(--red)}
.app{display:none;min-height:100vh}
.top{position:sticky;top:0;background:rgba(255,255,255,.9);backdrop-filter:blur(14px);border-bottom:1px solid var(--border);z-index:5}
.top-inner{max-width:1120px;margin:0 auto;padding:10px 14px;display:flex;justify-content:space-between;gap:12px;align-items:center}
.brand{font-weight:850}.who{font-size:13px;color:var(--muted)}
.shell{max-width:1120px;margin:0 auto;padding:24px 16px 80px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px}
.tile{border:1px solid var(--border);background:#fff;border-radius:12px;padding:16px;text-align:left;min-height:118px;cursor:pointer;box-shadow:0 1px 2px rgba(0,0,0,.03)}
.tile b{display:block;font-size:18px;margin-bottom:6px}.tile span{color:var(--muted);font-size:13px;line-height:1.5}
.viewer{display:none;height:calc(100vh - 50px)}
.bar{height:50px;display:flex;align-items:center;justify-content:space-between;gap:8px;padding:8px 12px;border-bottom:1px solid var(--border);background:#fff}
.small{border:1px solid var(--border);background:#fff;border-radius:999px;padding:7px 12px;cursor:pointer;font-weight:750}
iframe{width:100%;height:calc(100% - 50px);border:0;background:#fff}
.admin-body{background:#f6f8fb}
.admin-shell{max-width:1280px;margin:0 auto;padding:18px 14px 70px}
.admin-login{max-width:460px;margin:12vh auto 0;padding:24px}
.toolbar{display:flex;gap:8px;flex-wrap:wrap;align-items:center;justify-content:space-between;margin-bottom:14px}
.tabs{display:flex;gap:8px;flex-wrap:wrap}
.tab{border:1px solid var(--border);background:#fff;border-radius:999px;padding:8px 14px;font-weight:800;cursor:pointer}
.tab.active{background:#1d1d1f;color:#fff;border-color:#1d1d1f}
.metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:12px;margin:14px 0}
.metric{padding:16px}
.metric b{display:block;font-size:28px;margin-bottom:4px}
.metric span{color:var(--muted);font-size:13px}
.panel{padding:14px;overflow:auto}
table{width:100%;border-collapse:collapse;font-size:13px;background:#fff}
th,td{border-bottom:1px solid var(--border);padding:9px 8px;text-align:left;vertical-align:top}
th{font-size:12px;color:#4b5563;background:#f8fafc;position:sticky;top:0}
td code{font-size:12px;word-break:break-all}
.empty{padding:24px;text-align:center;color:var(--muted)}
.danger{color:var(--red)}
@media(max-width:560px){h1{font-size:32px}.login-card{padding:26px 20px}.go{font-size:20px}.top-inner{align-items:flex-start;flex-direction:column}.admin-shell{padding:12px 10px 60px}}