:root{
  --ink:#0a2540; --ink2:#425466; --muted:#8898aa;
  --purple:#635bff; --cyan:#00a4c7; --orange:#ff7847; --pink:#ff5c8a; --green:#0bb37f;
  --bg:#f6f9fc; --card:#ffffff; --line:#e6ebf1;
  --shadow:0 6px 24px -8px rgba(50,50,93,.14), 0 4px 12px -6px rgba(0,0,0,.07);
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family:"Segoe UI","PingFang SC","Microsoft YaHei",-apple-system,Helvetica,Arial,sans-serif;
  background:var(--bg); color:var(--ink);
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}

/* ---------- Banner ---------- */
.banner{
  position:relative; overflow:hidden;
  padding:64px 40px 56px;
  background:linear-gradient(115deg,#f8faff 0%,#eef3ff 35%,#f3edff 65%,#fdf1f6 100%);
  border-bottom:1px solid var(--line);
}
.banner::before,.banner::after{
  content:""; position:absolute; border-radius:50%; filter:blur(70px); opacity:.55; pointer-events:none;
}
.banner::before{width:520px;height:520px;left:-140px;top:-260px;
  background:radial-gradient(circle at 30% 30%,#a5b4fc,#7dd3fc 60%,transparent 75%)}
.banner::after{width:560px;height:560px;right:-160px;bottom:-320px;
  background:radial-gradient(circle at 60% 40%,#fbcfe8,#c4b5fd 55%,transparent 78%)}
.banner-inner{position:relative;z-index:2;max-width:1240px;margin:0 auto;
  display:flex;align-items:center;gap:28px}
.banner-title{flex:1;text-align:center}
.banner-title .kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:2.5px;color:var(--purple);
  background:rgba(99,91,255,.08);border:1px solid rgba(99,91,255,.18);
  padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.banner-title h1{
  font-size:clamp(34px,4.6vw,54px);font-weight:800;letter-spacing:1px;line-height:1.15;
  background:linear-gradient(92deg,#0a2540 10%,#635bff 55%,#9a66ff 90%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.banner-title .sub{margin-top:14px;color:var(--ink2);font-size:15.5px}
.banner-title .sub b{color:var(--ink)}
.badges{display:flex;flex-direction:column;gap:12px;min-width:172px}
.badge{
  background:rgba(255,255,255,.82);backdrop-filter:blur(8px);
  border:1px solid rgba(255,255,255,.9);border-radius:14px;
  box-shadow:var(--shadow);padding:12px 18px;
  display:flex;align-items:center;gap:12px;
}
.badge .ico{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;font-size:18px;flex:none}
.badge:nth-child(1) .ico{background:linear-gradient(135deg,#ede9fe,#ddd6fe)}
.badge:nth-child(2) .ico{background:linear-gradient(135deg,#e0f2fe,#bae6fd)}
.badge:nth-child(3) .ico{background:linear-gradient(135deg,#fef3c7,#fde68a)}
.badge .num{font-size:20px;font-weight:800;line-height:1.05}
.badge .lab{font-size:12px;color:var(--muted);margin-top:2px}

/* ---------- Tabs ---------- */
.tabs-wrap{
  position:sticky;top:0;z-index:50;
  background:rgba(246,249,252,.9);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.tabs{max-width:1240px;margin:0 auto;display:flex;gap:8px;padding:12px 40px;flex-wrap:wrap}
.tab{
  border:1px solid var(--line);background:#fff;color:var(--ink2);
  font-size:14px;font-weight:700;letter-spacing:1px;
  padding:9px 26px;border-radius:999px;cursor:pointer;transition:.18s;
}
.tab:hover{border-color:#c7d2fe;color:var(--purple)}
.tab.active{
  background:linear-gradient(92deg,var(--purple),#8b7bff);color:#fff;border-color:transparent;
  box-shadow:0 6px 16px -6px rgba(99,91,255,.55);
}
.tab .cnt{opacity:.75;font-weight:500;font-size:12px;margin-left:6px}

/* ---------- Main ---------- */
.main{max-width:1240px;margin:26px auto 60px;padding:0 40px;
  display:grid;grid-template-columns:minmax(380px,460px) 1fr;gap:26px;align-items:start}
.tl-head{display:flex;align-items:baseline;justify-content:space-between;margin:2px 4px 14px}
.tl-head h2{font-size:18px;font-weight:800}
.tl-head span{font-size:12.5px;color:var(--muted)}
.legend{display:flex;gap:14px;flex-wrap:wrap;margin:0 4px 16px}
.legend i{display:inline-flex;align-items:center;gap:6px;font-style:normal;font-size:12px;color:var(--ink2)}
.legend i::before{content:"";width:9px;height:9px;border-radius:3px;background:var(--c)}
.timeline{position:relative;padding-left:22px}
.timeline::before{content:"";position:absolute;left:6px;top:12px;bottom:12px;width:2px;
  background:linear-gradient(#c7d2fe,#e9d5ff 55%,#fbcfe8)}
.poi{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:14px;box-shadow:0 2px 8px -4px rgba(50,50,93,.1);
  padding:14px 16px 13px;margin-bottom:12px;cursor:pointer;
  transition:transform .18s, box-shadow .18s, border-color .18s;
  border-left:4px solid var(--c);
}
.poi:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:#d4dcff;border-left-color:var(--c)}
.poi.sel{border-color:var(--c);box-shadow:0 0 0 3px color-mix(in srgb,var(--c) 18%,transparent),var(--shadow)}
.poi::before{
  content:attr(data-num);position:absolute;left:-28px;top:15px;
  width:22px;height:22px;border-radius:50%;background:var(--c);color:#fff;
  font-size:11.5px;font-weight:800;display:grid;place-items:center;
  box-shadow:0 0 0 3px var(--bg);
}
.poi .row1{display:flex;align-items:center;gap:10px}
.poi .time{
  font-size:12px;font-weight:800;color:var(--c);
  background:color-mix(in srgb,var(--c) 10%,#fff);
  border:1px solid color-mix(in srgb,var(--c) 22%,#fff);
  padding:2px 9px;border-radius:999px;flex:none;letter-spacing:.4px;
}
.poi .name{font-size:15px;font-weight:800;flex:1;min-width:0}
.poi .cat{
  flex:none;font-size:11px;font-weight:700;color:#fff;background:var(--c);
  padding:2.5px 9px;border-radius:999px;letter-spacing:1.5px;
}
.poi .desc{margin-top:7px;font-size:12.8px;color:var(--ink2);line-height:1.62}
.poi .meta{margin-top:7px;display:flex;gap:14px;flex-wrap:wrap;font-size:11.5px;color:var(--muted)}
.poi .meta b{color:var(--ink2);font-weight:600}

/* map */
.map-panel{position:sticky;top:74px}
.map-card{
  background:var(--card);border:1px solid var(--line);border-radius:18px;overflow:hidden;
  box-shadow:var(--shadow);
}
#map{height:calc(100vh - 210px);min-height:520px}
.map-foot{padding:11px 18px;font-size:12px;color:var(--muted);border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}
.map-foot b{color:var(--ink2)}

/* tips strip */
.tips{
  grid-column:1/-1;background:linear-gradient(96deg,#f5f3ff,#eff6ff 55%,#fdf2f8);
  border:1px solid #e4e0ff;border-radius:16px;padding:16px 22px;
  font-size:13px;color:var(--ink2);line-height:1.85;
}
.tips b{color:var(--purple)}

@media (max-width:980px){
  .main{grid-template-columns:1fr}
  .map-panel{position:static;order:-1}
  #map{height:420px;min-height:0}
  .banner-inner{flex-direction:column}
  .badges{flex-direction:row;min-width:0}
}

/* ============ Gallery (首页) ============ */
.gallery{max-width:1240px;margin:0 auto;padding:54px 40px 80px}
.gallery-head{text-align:center;margin-bottom:14px}
.gallery-head .kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:2.5px;
  color:var(--purple);background:rgba(99,91,255,.08);border:1px solid rgba(99,91,255,.18);
  padding:6px 14px;border-radius:999px;
}
.gallery-head h1{
  margin-top:16px;font-size:clamp(30px,4vw,46px);font-weight:800;letter-spacing:1px;
  background:linear-gradient(92deg,#0a2540 10%,#635bff 55%,#9a66ff 90%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.gallery-head p{margin-top:12px;color:var(--ink2);font-size:15px}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:22px;margin-top:40px}
.trip-card{
  position:relative;display:block;background:var(--card);border:1px solid var(--line);
  border-radius:18px;overflow:hidden;box-shadow:var(--shadow);
  transition:transform .2s, box-shadow .2s, border-color .2s;
}
.trip-card:hover{transform:translateY(-4px);box-shadow:0 16px 36px -12px rgba(50,50,93,.28);border-color:#c7d2fe}
.trip-cover{height:120px;display:grid;place-items:center;font-size:52px;
  background:linear-gradient(120deg,#eef3ff,#f3edff 55%,#fdf1f6)}
.trip-body{padding:18px 20px 20px}
.trip-body .region{font-size:12px;color:var(--muted);letter-spacing:1px}
.trip-body h3{font-size:19px;font-weight:800;margin:4px 0 8px}
.trip-body .desc{font-size:13px;color:var(--ink2);line-height:1.65;min-height:42px}
.trip-meta{margin-top:14px;display:flex;gap:10px;flex-wrap:wrap;font-size:12px;color:var(--muted)}
.trip-meta span{background:#f1f5fb;border:1px solid var(--line);padding:3px 10px;border-radius:999px}
.empty{text-align:center;color:var(--muted);padding:60px 0;font-size:15px}
.history-toggle{margin-top:46px;text-align:center}
.history-toggle button{
  background:#fff;border:1px solid var(--line);color:var(--ink2);font-size:13px;font-weight:700;
  padding:10px 22px;border-radius:999px;cursor:pointer;transition:.18s;
}
.history-toggle button:hover{border-color:#c7d2fe;color:var(--purple)}
.history-list{margin-top:22px;display:none}
.history-list.open{display:block}
.history-list .grid{margin-top:0}
.trip-card.archived .trip-cover{filter:grayscale(.4);opacity:.85}
.trip-card .archived-tag{position:absolute;top:12px;right:12px;font-size:11px;font-weight:700;
  color:#fff;background:rgba(99,91,255,.85);padding:3px 10px;border-radius:999px}