:root{
    --ink:#122436; --ink-soft:#3c5163;
    --paper:#eef2f2; --paper-card:#ffffff; --line:#c9d3d2;
    --delft:#1e3a5f; --delft-deep:#0f2340;
    --gold:#c98a1f; --wine:#8c2a3a; --teal:#1f6f78;
    --radius:3px;
  }
  *{box-sizing:border-box;}
  body{margin:0;background:var(--paper);color:var(--ink);font-family:system-ui,"Microsoft YaHei",sans-serif;line-height:1.55;}
  h1,h2,.serif{font-family:Georgia,"Microsoft YaHei",serif;}
  .wrap{max-width:820px;margin:0 auto;padding:40px 24px 80px;}
  header.page-head{border-bottom:1px solid var(--line);padding-bottom:28px;margin-bottom:24px;}
  header.page-head h1{font-size:clamp(26px,4vw,36px);font-weight:700;margin:0 0 10px;color:var(--delft-deep);letter-spacing:-0.01em;}
  header.page-head p{max-width:600px;color:var(--ink-soft);font-size:15px;margin:0;}

  .demo-banner{
    background:#faf3e0;border:1px solid #e6d6a8;border-radius:var(--radius);
    padding:10px 14px;font-size:13px;color:#8a5f10;margin-bottom:24px;
  }

  .search-card{
    background:var(--paper-card);border:1px solid var(--line);border-radius:var(--radius);
    padding:22px 24px;margin-bottom:20px;
  }
  .search-row{display:flex;gap:10px;flex-wrap:wrap;}
  .search-row input{
    flex:1;min-width:220px;font-family:inherit;font-size:15px;padding:10px 12px;
    border:1px solid var(--line);border-radius:var(--radius);background:#fff;color:var(--ink);
  }
  .search-row button{
    font-family:inherit;font-size:14px;font-weight:600;
    background:var(--delft);color:#fff;border:none;
    padding:0 22px;border-radius:var(--radius);cursor:pointer;
  }
  .search-row button:hover{background:var(--delft-deep);}
  .presets{margin-top:12px;font-size:12.5px;color:var(--ink-soft);}
  .presets button{
    font-family:inherit;font-size:12.5px;background:none;border:1px solid var(--line);
    padding:3px 9px;border-radius:var(--radius);cursor:pointer;color:var(--ink-soft);margin-right:6px;
  }
  .presets button:hover{border-color:var(--delft);color:var(--delft);}

  .result-card{
    background:var(--paper-card);border:1px solid var(--line);border-radius:var(--radius);
    padding:24px 26px;display:none;
  }
  .result-head{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:6px;flex-wrap:wrap;gap:10px;}
  .result-head .num{font-family:Georgia,"Microsoft YaHei",serif;font-size:18px;font-weight:700;color:var(--delft-deep);}
  .status-badge{
    font-size:12px;padding:4px 12px;border-radius:2px;font-weight:600;white-space:nowrap;
  }
  .status-transit{background:#faf3e0;color:#8a5f10;}
  .status-delivered{background:#e5f2ee;color:#1f6f4a;}
  .status-customs{background:#f7ecec;color:var(--wine);}

  .route-line{font-size:13px;color:var(--ink-soft);margin-bottom:20px;}
  .route-line strong{color:var(--ink);}

  .timeline{margin-top:8px;}
  .tl-item{
    display:flex;gap:16px;padding:12px 0;
    border-left:3px solid var(--line);padding-left:16px;
  }
  .tl-item.leg-cn{border-left-color:var(--gold);}
  .tl-item.leg-transit{border-left-color:var(--teal);}
  .tl-item.leg-nl{border-left-color:var(--delft);}
  .tl-item .time{min-width:130px;font-size:12.5px;color:var(--ink-soft);font-variant-numeric:tabular-nums;}
  .tl-item .body h3{font-size:14.5px;margin:0 0 3px;font-weight:600;color:var(--ink);}
  .tl-item .body .loc{font-size:12.5px;color:var(--ink-soft);}
  .leg-tag{
    display:inline-block;font-size:10.5px;padding:1px 6px;border-radius:2px;margin-left:6px;position:relative;top:-1px;
  }
  .leg-tag.cn{background:#f6ecda;color:#8a5f10;}
  .leg-tag.transit{background:#e3f1f1;color:var(--teal);}
  .leg-tag.nl{background:#eaf0f6;color:var(--delft-deep);}

  .empty-hint{color:var(--ink-soft);font-size:13.5px;padding:8px 2px;}

  .note{margin-top:24px;font-size:12.5px;color:var(--ink-soft);border-top:1px solid var(--line);padding-top:16px;}

  .site-nav{background:var(--delft-deep);border-bottom:1px solid #0a1c30;}
  .site-nav-inner{max-width:1080px;margin:0 auto;padding:14px 24px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;}
  .site-nav .brand{font-family:Georgia,"Microsoft YaHei",serif;font-size:17px;font-weight:700;color:#fff;text-decoration:none;letter-spacing:-0.01em;}
  .site-nav nav{display:flex;gap:4px;flex-wrap:wrap;}
  .site-nav nav a{color:#cdd9e3;text-decoration:none;font-size:13.5px;padding:7px 12px;border-radius:var(--radius);}
  .site-nav nav a:hover{background:rgba(255,255,255,0.08);color:#fff;}
  .site-nav nav a.current{background:rgba(255,255,255,0.14);color:#fff;font-weight:600;}