:root{
  --blue:#0d5fb8; --blue-d:#0a4d97; --bg:#f3f5f8; --card:#fff;
  --ink:#1b2430; --sub:#6b7684; --line:#e6eaf0; --accent:#0d5fb8;
  --ok:#1a9e5c; --warn:#e08a1e;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--bg); color:var(--ink); font-size:15px; line-height:1.5;
  overscroll-behavior-y:none;
}
#app{max-width:560px;margin:0 auto;min-height:100vh;background:var(--bg);position:relative;padding-bottom:78px}
.hdr{
  position:sticky;top:0;z-index:20;background:linear-gradient(135deg,var(--blue),var(--blue-d));
  color:#fff;padding:14px 16px;display:flex;align-items:center;gap:10px;
  box-shadow:0 2px 8px rgba(13,95,184,.25);
}
.hdr .back{background:rgba(255,255,255,.18);border:none;color:#fff;width:30px;height:30px;border-radius:50%;font-size:17px;line-height:30px;padding:0}
.hdr h1{font-size:17px;margin:0;font-weight:600;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hdr .sub{font-size:11px;opacity:.85}
.card{background:var(--card);border-radius:12px;margin:12px;padding:14px;box-shadow:0 1px 3px rgba(20,40,70,.06)}
.card h2{font-size:15px;margin:0 0 10px;display:flex;align-items:center;gap:7px}
.card h2::before{content:"";width:4px;height:15px;background:var(--blue);border-radius:2px}
.muted{color:var(--sub);font-size:13px}
.btn{
  display:block;width:100%;border:none;background:var(--blue);color:#fff;font-size:16px;
  padding:13px;border-radius:10px;font-weight:600;cursor:pointer;
}
.btn:active{background:var(--blue-d)}
.btn.ghost{background:#eef4fc;color:var(--blue)}
.btn.sm{padding:8px 12px;font-size:13px;width:auto;border-radius:8px;display:inline-block}
.row{display:flex;gap:10px}
.row>*{flex:1}
.field{margin-bottom:12px}
.field label{display:block;font-size:13px;color:var(--sub);margin-bottom:5px}
.field input,.field select{
  width:100%;border:1px solid var(--line);border-radius:9px;padding:11px 12px;font-size:16px;background:#fafbfc;
}
.field input:focus,.field select:focus{outline:none;border-color:var(--blue);background:#fff}
.grid-cat{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.cat-item{
  background:#fff;border-radius:12px;padding:14px 12px;text-align:center;border:1px solid var(--line);cursor:pointer;
}
.cat-item:active{background:#eef4fc;border-color:var(--blue)}
.cat-item .t{font-size:14px;font-weight:600}
.cat-item .n{font-size:12px;color:var(--sub);margin-top:3px}
.list-item{
  display:flex;align-items:center;justify-content:space-between;background:#fff;border:1px solid var(--line);
  border-radius:11px;padding:13px 14px;margin-bottom:9px;cursor:pointer;
}
.list-item:active{background:#f2f7fd}
.list-item .nm{font-weight:600;font-size:15px}
.list-item .meta{font-size:12px;color:var(--sub);margin-top:2px}
.list-item .go{color:var(--blue);font-size:20px}
.searchbar{
  width:100%;border:1px solid var(--line);border-radius:20px;padding:9px 14px;font-size:14px;margin-bottom:12px;background:#fff;
}
.tabs{display:flex;gap:6px;overflow-x:auto;padding:2px 0 8px}
.tab{
  flex:none;border:1px solid var(--line);background:#fff;border-radius:18px;padding:7px 14px;font-size:13px;color:var(--sub);cursor:pointer;
}
.tab.on{background:var(--blue);color:#fff;border-color:var(--blue)}
.kv{display:grid;grid-template-columns:1fr 1fr;gap:8px 14px}
.kv .k{font-size:12px;color:var(--sub)}
.kv .v{font-size:15px;font-weight:600}
.big-num{font-size:26px;font-weight:700;color:var(--blue)}
.svgwrap{
  background:#fbfcfe;border:1px solid var(--line);border-radius:10px;overflow:auto;
  max-height:62vh;touch-action:pan-x pan-y pinch-zoom;position:relative;
}
.svgwrap svg{display:block;width:100%;height:auto;min-height:200px}
.dim-table{width:100%;border-collapse:collapse;font-size:13px}
.dim-table th,.dim-table td{border-bottom:1px solid var(--line);padding:8px 6px;text-align:left}
.dim-table th{color:var(--sub);font-weight:500;font-size:12px}
.dim-table td.v{font-weight:600}
.share-card{
  background:linear-gradient(160deg,#0d5fb8,#0a3f7e);color:#fff;border-radius:14px;padding:20px 18px;margin:12px;
}
.share-card .logo{font-size:13px;opacity:.85;letter-spacing:1px}
.share-card .model{font-size:30px;font-weight:700;margin:8px 0 2px}
.share-card .series{font-size:13px;opacity:.9}
.share-card .specs{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:16px 0}
.share-card .specs .k{font-size:11px;opacity:.75}
.share-card .specs .v{font-size:18px;font-weight:600}
.share-card .foot{border-top:1px solid rgba(255,255,255,.2);padding-top:12px;font-size:13px;line-height:1.7}
.tabbar{
  position:fixed;bottom:0;left:50%;transform:translateX(-50%);width:100%;max-width:560px;
  background:#fff;border-top:1px solid var(--line);display:flex;z-index:30;
}
.tabbar button{
  flex:1;border:none;background:none;padding:9px 0 12px;font-size:11px;color:var(--sub);display:flex;flex-direction:column;align-items:center;gap:3px;cursor:pointer;
}
.tabbar button .ic{font-size:19px}
.tabbar button.on{color:var(--blue)}
.badge{display:inline-block;background:#eef4fc;color:var(--blue);font-size:11px;border-radius:5px;padding:2px 7px;margin-left:6px}
.chart-box{width:100%}
.chart-box canvas{width:100%;height:auto;display:block}
.u{font-size:12px;font-weight:400;color:var(--sub)}
.badge-ok{background:#e9f7f0;color:var(--ok)}
.badge-warn{background:#fdf3e3;color:#c47a12}

/* 全屏尺寸查看器 */
.fs{position:fixed;inset:0;background:#fff;z-index:200;display:none;flex-direction:column}
.fs.on{display:flex}
.fs-top{display:flex;align-items:center;gap:8px;padding:10px 12px;border-bottom:1px solid var(--line);background:#fff}
.fs-title{flex:1;font-weight:600;font-size:15px;text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.fs-btn{border:1px solid var(--line);background:#f6f8fb;border-radius:8px;padding:7px 12px;font-size:13px;color:var(--blue)}
.fs-tabs{display:flex;gap:6px;overflow-x:auto;padding:8px 12px;border-bottom:1px solid var(--line);background:#fff}
.fs-tab{flex:none;border:1px solid var(--line);border-radius:16px;padding:6px 12px;font-size:12px;color:var(--sub);background:#fff;cursor:pointer}
.fs-tab.on{background:var(--blue);color:#fff;border-color:var(--blue)}
.fs-body{flex:1;overflow:hidden;position:relative;touch-action:none;background:#fbfcfe}
.fs-stage{position:absolute;left:0;right:0;top:0;will-change:transform;transform-origin:center top;padding:8px}
.fs-stage svg{display:block;width:100%;height:auto}
.fs-dims{max-height:32vh;overflow:auto;padding:6px 12px 12px;border-top:1px solid var(--line);background:#fff}
.legend{display:flex;flex-wrap:wrap;gap:12px;font-size:12px;color:var(--sub);margin-top:8px}
.legend i{display:inline-block;width:12px;height:3px;border-radius:2px;margin-right:4px;vertical-align:middle}
.result-tag{display:inline-flex;align-items:center;gap:5px;font-size:12px;padding:3px 9px;border-radius:6px;background:#e9f7f0;color:var(--ok)}
.qr{width:150px;height:150px;background:#fff;border-radius:10px;margin:10px auto;display:block}
.toast{
  position:fixed;left:50%;bottom:96px;transform:translateX(-50%);background:rgba(20,28,40,.9);color:#fff;
  padding:10px 18px;border-radius:20px;font-size:13px;z-index:50;opacity:0;transition:opacity .25s;pointer-events:none;
}
.toast.show{opacity:1}
.hero{
  background:linear-gradient(135deg,#0d5fb8,#0a4d97);color:#fff;margin:0;padding:26px 20px 24px;
}
.hero h1{margin:0;font-size:21px}
.hero p{margin:6px 0 0;font-size:13px;opacity:.9}
.quick-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:-16px;padding:0 12px}
.qa{
  background:#fff;border-radius:12px;padding:16px 12px;text-align:center;box-shadow:0 2px 8px rgba(20,40,70,.08);cursor:pointer;
}
.qa .ic{font-size:24px}
.qa .t{font-size:14px;font-weight:600;margin-top:5px}
.qa .d{font-size:11px;color:var(--sub);margin-top:2px}
.hide{display:none!important}

/* 选型结果表（与电脑端列一致） */
.res-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:8px;border:1px solid var(--line)}
table.res{border-collapse:collapse;font-size:12px;min-width:780px;width:100%}
table.res th,table.res td{border-bottom:1px solid var(--line);padding:7px 8px;text-align:right;white-space:nowrap}
table.res th{color:var(--sub);font-weight:500;background:#f7f9fc;font-size:11px;line-height:1.3}
table.res th.l,table.res td.l{text-align:left}
table.res tbody tr{cursor:pointer}
table.res tbody tr:active{background:#f2f7fd}
table.res td.nmcell{font-weight:600}
table.res .ty{font-size:11px;color:var(--sub)}
table.res .drv{display:inline-block;font-size:10px;border-radius:4px;padding:1px 5px;margin-top:2px}
table.res .drv-belt{background:#eef4fc;color:var(--blue)}
table.res .drv-dc{background:#e9f7f0;color:var(--ok)}
.catlist{max-height:280px;overflow:auto;border:1px solid var(--line);border-radius:9px;padding:2px 10px;background:#fafbfc}
.catlist label{display:flex;align-items:center;gap:9px;padding:8px 2px;font-size:14px;border-bottom:1px dashed var(--line)}
.catlist label:last-child{border-bottom:none}
.catlist input{width:18px;height:18px;flex:none}

/* 系列下拉二级菜单 */
.selectbtn{display:flex;align-items:center;justify-content:space-between;gap:8px;width:100%;border:1px solid var(--line);border-radius:9px;padding:11px 12px;font-size:15px;background:#fafbfc;color:var(--ink);text-align:left;cursor:pointer}
.selectbtn:active{background:#eef4fc;border-color:var(--blue)}
.selectbtn .caret{color:var(--blue);font-size:13px;flex:none}
.catpanel{display:none;margin-top:8px;border:1px solid var(--line);border-radius:10px;background:#fff;box-shadow:0 8px 22px rgba(20,40,70,.12);padding:10px}
.catpanel.on{display:block}
.catpanel-hd{display:flex;gap:8px;margin-bottom:8px}
/* 结果页特别提醒 */
.tip-note{margin:14px 12px 24px;padding:12px 14px;background:#fff7e6;border:1px solid #f0d9a8;border-radius:10px;color:#8a5a00;font-size:13px;line-height:1.65}