:root{
  --bg:#f5f7fa; --panel:#ffffff; --ink:#1f2933; --muted:#67727e;
  --line:#e1e6eb; --accent:#2563eb; --accent2:#0e7490; --ok:#15803d; --warn:#b45309; --bad:#b91c1c;
  --chip:#eef2ff;
}
*{box-sizing:border-box}
body{margin:0;font-family:"Segoe UI","Microsoft YaHei",system-ui,sans-serif;background:var(--bg);color:var(--ink);font-size:14px}
.topbar{display:flex;justify-content:space-between;align-items:center;padding:10px 18px;background:linear-gradient(90deg,#1e3a8a,#0e7490);color:#fff}
.brand{font-weight:700;font-size:18px}
.brand .sub{font-weight:400;font-size:12px;opacity:.85;margin-left:8px}
.stdbox{font-size:13px;display:flex;align-items:center;gap:6px}
.stdbox select{padding:4px 8px;border-radius:6px;border:1px solid #fff3;background:#fff;color:#1f2933}
.langsel{font-weight:600;background:#fff;border:1px solid #cbd5e1;color:#0e7490;padding:5px 10px;border-radius:6px;cursor:pointer}
.langsel:focus{outline:2px solid #93c5fd}
.stdnote{font-size:11px;opacity:.9;max-width:260px}
.tabs{display:flex;gap:4px;padding:8px 14px 0;background:var(--bg);flex-wrap:wrap;position:sticky;top:0;z-index:50;box-shadow:0 2px 8px rgba(15,23,42,.08)}
.tab{border:1px solid var(--line);border-bottom:none;background:#e9eef5;padding:9px 16px;border-radius:8px 8px 0 0;cursor:pointer;font-size:14px;color:var(--muted)}
.tab.active{background:var(--panel);color:var(--accent);font-weight:700;border-color:var(--line)}
.content{padding:0 14px 20px}
.panel{display:none;background:var(--panel);border:1px solid var(--line);border-radius:0 10px 10px 10px;padding:16px;margin-top:-1px}
.panel.active{display:block}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
@media(max-width:900px){.grid2{grid-template-columns:1fr}}
.card{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:14px}
.card h3{margin:0 0 10px;font-size:15px;color:var(--accent2);border-bottom:1px solid var(--line);padding-bottom:6px}
.formrow{display:flex;align-items:center;gap:8px;margin:7px 0;flex-wrap:wrap}
.formrow label{min-width:170px;color:var(--muted);font-size:13px}
.formrow input,.formrow select{flex:1;min-width:120px;padding:6px 8px;border:1px solid var(--line);border-radius:6px;background:#fff;color:var(--ink)}
.formrow input[type=number]{max-width:160px}
.ro{color:var(--muted);font-size:12px}
.btn{background:var(--accent);color:#fff;border:none;padding:9px 16px;border-radius:7px;cursor:pointer;font-size:14px}
.btn:hover{background:#1d4ed8}
.btn.ghost{background:#eef2ff;color:var(--accent);border:1px solid #c7d2fe}
.btn.small{padding:4px 12px;font-size:12px;margin-left:8px}
.contact-link{display:inline-block;background:#fff;color:var(--accent);border:1px solid #cbd5e1;padding:5px 12px;border-radius:6px;text-decoration:none;font-size:12px;font-weight:600;margin-left:8px;white-space:nowrap}
.contact-link:hover{background:#eef2ff}
.contact-link::before{content:"\2709\FE0E  ";}
.home-link{display:inline-block;background:#fff;color:var(--accent);border:1px solid #cbd5e1;padding:5px 12px;border-radius:6px;text-decoration:none;font-size:12px;font-weight:600;margin-left:8px;white-space:nowrap}
.home-link:hover{background:#eef2ff}
.home-link::before{content:"\1F3E0  ";}
.nodes{display:flex;gap:6px;overflow-x:auto;padding:6px 0;border:1px solid var(--line);border-radius:8px;background:#fafbfc}
.node{min-width:150px;border:1px solid var(--line);border-radius:8px;padding:6px;background:#fff}
.node b{font-size:12px;color:var(--accent2);display:block;margin-bottom:4px}
.node input{width:62px;padding:3px 4px;margin:2px 0;font-size:12px;border:1px solid var(--line);border-radius:4px}
.node .lbl{font-size:11px;color:var(--muted)}
.result{font-size:13px;line-height:1.7}
.result table{width:100%;border-collapse:collapse;margin:6px 0}
.result td,.result th{border:1px solid var(--line);padding:4px 8px;text-align:left}
.result th{background:#f1f5f9;color:var(--muted);font-weight:600}
.cmp-table td,.cmp-table th{padding:3px 7px;font-size:12px}
.cmp-table .cmp-name{font-weight:600;color:var(--ink);min-width:200px}
.cmp-bar{position:relative;height:14px;background:#f1f5f9;border-radius:4px;overflow:hidden;min-width:90px}
.cmp-bar span{position:absolute;left:0;top:0;bottom:0;border-radius:4px;-webkit-print-color-adjust:exact;print-color-adjust:exact}
.cmp-bar b{position:relative;margin-left:6px;font-size:11px}
.cmp-current{background:#fff7d6}
.cmp-current td{font-weight:600}
.cmp-best{background:#e7f7ec!important;color:#0f7a37!important;font-weight:700;position:relative}
.cmp-best::after{content:'★';position:absolute;right:2px;top:0;font-size:10px;color:#0f7a37}
.cmp-tag{display:inline-block;background:#1a4b8c;color:#fff;font-size:10px;padding:0 5px;border-radius:8px;margin-left:4px;vertical-align:middle}
.cmp-stable{display:inline-block;background:#e7f7ec;color:#0f7a37;font-size:10px;padding:0 5px;border-radius:8px;margin-left:4px;vertical-align:middle;font-weight:600}
.cmp-flip{display:inline-block;background:#fde8e8;color:#dc2626;font-size:10px;padding:0 5px;border-radius:8px;margin-left:4px;vertical-align:middle;font-weight:600}
.cmp-pin{width:16px;height:16px;cursor:pointer;vertical-align:middle}
.cmp-radar{width:100%;max-width:460px;height:auto;margin-top:6px}
.cmpradar{font-family:sans-serif}
.cmp-pins-wrap,.cmp-radar-wrap{margin-top:12px}
.cmp-pins-wrap h4,.cmp-radar-wrap h4{margin:8px 0 4px;font-size:13px;color:#1a4b8c}
.cmp-chart{margin:8px 0;border:1px solid var(--line);border-radius:6px;padding:6px;background:#fafbff;overflow-x:auto}
.cmp-chart svg{display:block;max-width:100%;height:auto}

.kv{display:flex;justify-content:space-between;border-bottom:1px dashed var(--line);padding:3px 0}
.kv b{color:var(--accent2)}
.pill{display:inline-block;padding:2px 10px;border-radius:20px;font-weight:700;font-size:13px}
.pill.ok{background:#dcfce7;color:var(--ok)}
.pill.warn{background:#fef3c7;color:var(--warn)}
.pill.bad{background:#fee2e2;color:var(--bad)}
.hint{font-size:12px;color:var(--warn);margin-top:8px;min-height:16px}
.src{list-style:disc;padding-left:20px;margin:6px 0 2px;font-size:12px;line-height:1.65;color:var(--ink)}
.src li{margin:3px 0}
.src em{color:var(--accent2);font-style:normal;font-weight:600}
.foot{text-align:center;color:var(--muted);font-size:12px;padding:14px}
canvas{width:100%;height:auto;background:#fff;border:1px solid var(--line);border-radius:8px}

/* ---------- C3 打印/PDF 导出：显示全部面板，隐藏交互控件 ---------- */
@media print {
  .topbar, .tabs, button, .btn, .contact-link, .home-link, input, select, textarea { display: none !important; }
  .topbar .brand { display: block !important; }
  .panel { display: block !important; break-inside: avoid; page-break-inside: avoid; margin-bottom: 12px; }
  .card { break-inside: avoid; page-break-inside: avoid; }
  body { background: #fff !important; color: #000 !important;
         print-color-adjust: exact; -webkit-print-color-adjust: exact; }
  .pill, .card { print-color-adjust: exact; -webkit-print-color-adjust: exact; }
  canvas { max-width: 100%; border: 1px solid #ccc; }
  .result table { width: 100%; }
  .foot { page-break-before: avoid; }
}
body.printing .topbar, body.printing .tabs { display: none; }