/* trip-compass — fresh "field guide" travel aesthetic, dependency-free. */
:root{
  --bg:#eef4f3; --card:#fffefb; --ink:#192b2e; --ink2:#54676a; --ink3:#8aa0a2;
  --line:#e0e8e6; --sea:#1f8a7a; --sea-soft:#e3f1ee; --sand:#d98a3d; --sand-soft:#fbeede;
  --danger:#c0392b; --danger-soft:#fbeae8;
  --shadow:0 1px 2px rgba(25,43,46,.04),0 10px 30px rgba(25,43,46,.08);
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC",sans-serif;
  --serif:Georgia,"Times New Roman","Songti SC",serif;
}
*{margin:0;padding:0;box-sizing:border-box}
body{background:linear-gradient(175deg,#eef4f3,#e9f0ee 55%,#f3efe7);min-height:100vh;color:var(--ink);font-family:var(--sans);line-height:1.6;-webkit-font-smoothing:antialiased}
.wrap{max-width:820px;margin:0 auto;padding:28px 20px 70px}
.masthead{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;flex-wrap:wrap}
h1{font-family:var(--serif);font-size:25px;font-weight:600;letter-spacing:.2px}
h1 .zh{font-size:17px;color:var(--ink2);font-weight:400}
.tag{color:var(--ink2);font-size:14px;margin-top:4px;max-width:56ch}
.lang-seg{display:inline-flex;border:1px solid var(--line);border-radius:999px;overflow:hidden;background:var(--card);flex-shrink:0}
.lang-seg button{border:none;background:none;font:inherit;font-size:12px;font-weight:600;padding:6px 13px;cursor:pointer;color:var(--ink3)}
.lang-seg button.on{background:var(--ink);color:#fff}
.privacy{font-size:12.5px;color:var(--ink2);background:var(--sea-soft);border:1px solid #cfe7e1;border-radius:10px;padding:9px 13px;margin:16px 0 18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px;margin-bottom:16px;box-shadow:var(--shadow)}
.card h2{font-family:var(--serif);font-size:18px;margin-bottom:14px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.grid3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px}
.fld{display:flex;flex-direction:column;font-size:13px;color:var(--ink2);font-weight:600;margin-bottom:14px}
.fld:last-child{margin-bottom:0}
.fld span{margin-bottom:6px}
.fld input,.fld select{padding:10px 11px;border:1px solid var(--line);border-radius:9px;font-size:15px;font-family:inherit;color:var(--ink);background:#fff;width:100%}
.fld input:focus,.fld select:focus{outline:none;border-color:var(--sea)}
.keyrow{display:flex;align-items:center;gap:16px;flex-wrap:wrap;font-size:12.5px;margin-top:2px}
.chk{display:flex;align-items:center;gap:6px;color:var(--ink2);font-weight:500}
.chk input{width:15px;height:15px;accent-color:var(--sea)}
.keyrow a,.link-btn{color:var(--sea);background:none;border:none;cursor:pointer;font:inherit;font-size:12.5px;text-decoration:none}
.keyrow a:hover,.link-btn:hover{text-decoration:underline}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{border:1px solid var(--line);background:#fff;border-radius:999px;padding:7px 14px;font-size:13px;cursor:pointer;color:var(--ink2);user-select:none;transition:.18s}
.chip:hover{border-color:var(--sea)}
.chip.on{background:var(--sea-soft);border-color:var(--sea);color:var(--sea);font-weight:600}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
.btn{border:none;border-radius:10px;padding:12px 20px;font:inherit;font-size:15px;font-weight:600;cursor:pointer;transition:.18s}
.btn.primary{background:var(--sea);color:#fff}
.btn.primary:hover{background:#1a7768;transform:translateY(-1px)}
.btn.primary:disabled{opacity:.55;cursor:default;transform:none}
.btn.ghost{background:#fff;border:1px solid var(--line);color:var(--ink2)}
.btn.ghost:hover{border-color:var(--sea);color:var(--sea)}
.err{margin-top:14px;font-size:13.5px;color:var(--danger);background:var(--danger-soft);border:1px solid #f0cfc9;border-radius:9px;padding:10px 13px}
.out-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:8px}
.out-actions{display:flex;gap:14px}
.loading{display:flex;align-items:center;gap:10px;color:var(--ink2);font-size:14px;padding:18px 0}
.spin{width:16px;height:16px;border:2px solid var(--line);border-top-color:var(--sea);border-radius:50%;display:inline-block;animation:sp .8s linear infinite}
@keyframes sp{to{transform:rotate(360deg)}}
.itinerary{font-size:15px;color:var(--ink)}
.itinerary h3{font-family:var(--serif);font-size:18px;margin:20px 0 6px;color:var(--sea);border-bottom:1px solid var(--line);padding-bottom:5px}
.itinerary h3:first-child{margin-top:4px}
.itinerary h4{font-size:14px;margin:14px 0 4px;color:var(--sand)}
.itinerary p{margin:8px 0;color:var(--ink2)}
.itinerary ul{margin:6px 0 12px;padding-left:4px;list-style:none}
.itinerary li{position:relative;padding:4px 0 4px 22px;color:var(--ink)}
.itinerary li::before{content:'◍';position:absolute;left:2px;color:var(--sea);font-size:11px;top:7px}
.itinerary strong{color:var(--ink)}
.demo-flag{margin-top:14px;font-size:12px;color:var(--sand);background:var(--sand-soft);border:1px solid #f0d8bd;border-radius:8px;padding:7px 12px;display:inline-block}
footer{text-align:center;font-size:12px;color:var(--ink3);margin-top:24px}
footer a{color:var(--sea)}
.disclaimer{font-size:11.5px;color:var(--ink3);margin:8px auto 0;max-width:58ch}
@media(max-width:620px){ .grid2,.grid3{grid-template-columns:1fr} h1{font-size:21px} }