:root{
  --bg:#131719;
  --surface:#1b2124;
  --surface-2:#232a2e;
  --ink:#ece8df;
  --ink-dim:#a9b0ad;
  --line:#333b3f;
  --accent:#e2873c;
  --accent-soft:#f0b27a;
  --accent-ink:#1a1208;
  --blue:#5b8fb0;
  --green:#6fa07a;
  --red:#c2604f;
  --radius:14px;
  --maxw:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased;
}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 clamp(18px,4vw,40px)}
a{color:var(--accent-soft)}
h1,h2,h3{line-height:1.25;margin:0}
.num{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-variant-numeric:tabular-nums}

/* top nav */
.topnav{position:sticky;top:0;z-index:50;background:rgba(19,23,25,.88);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line)}
.topnav .wrap{display:flex;align-items:center;gap:20px;height:60px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:800;letter-spacing:.02em}
.brand .logo{width:30px;height:30px;flex:none}
.brand small{display:block;font-size:.66rem;font-weight:500;color:var(--ink-dim);letter-spacing:.14em}
.navlinks{display:flex;gap:4px;margin-left:auto;align-items:center}
.navlinks a{color:var(--ink-dim);text-decoration:none;font-size:.92rem;padding:8px 12px;border-radius:9px}
.navlinks a:hover{color:var(--ink);background:var(--surface-2)}
.navlinks a.active{color:var(--accent-soft)}
.navtoggle{display:none;margin-left:auto;background:0;border:1px solid var(--line);color:var(--ink);
  border-radius:9px;padding:7px 11px;cursor:pointer;font:inherit}

/* hero */
.hero{position:relative;padding:clamp(48px,9vw,104px) 0 clamp(40px,7vw,72px);
  background:
    radial-gradient(120% 90% at 85% -10%, rgba(226,135,60,.20), transparent 55%),
    linear-gradient(180deg,#182024,#131719);
  border-bottom:1px solid var(--line);overflow:hidden}
.hero .kicker{color:var(--accent);font-weight:600;letter-spacing:.18em;font-size:.82rem;text-transform:uppercase}
.hero h1{font-size:clamp(2rem,5.5vw,3.4rem);margin:14px 0 18px;font-weight:800}
.hero p.lead{max-width:680px;color:var(--ink-dim);font-size:clamp(1rem,2vw,1.15rem)}
.badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.badge{border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--ink);
  padding:7px 14px;border-radius:999px;font-size:.88rem}
.badge b{color:var(--accent-soft);font-weight:600}
.hero-cta{margin-top:32px;display:flex;gap:14px;flex-wrap:wrap}

.btn{display:inline-block;border:0;cursor:pointer;font:inherit;font-weight:600;
  padding:13px 26px;border-radius:11px;text-decoration:none;transition:transform .15s ease,background .15s ease}
.btn-primary{background:var(--accent);color:var(--accent-ink)}
.btn-primary:hover{background:var(--accent-soft);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--accent)}
.btn-sm{padding:9px 17px;font-size:.9rem}
.btn:focus-visible{outline:3px solid var(--accent-soft);outline-offset:2px}

/* sections */
section{padding:clamp(44px,7vw,76px) 0;border-bottom:1px solid var(--line)}
.sec-head{display:flex;align-items:baseline;gap:14px;margin-bottom:30px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(1.4rem,3vw,1.9rem)}
.sec-head .idx{color:var(--accent);font-weight:700;font-family:ui-monospace,monospace}
.sec-head p{color:var(--ink-dim);margin:0;width:100%}

/* route svg */
.mapcard{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(18px,3vw,30px)}
.mapcard svg{width:100%;height:auto;display:block}
.map-note{color:var(--ink-dim);font-size:.82rem;margin-top:12px}
.mapnode{fill:var(--surface-2);stroke:var(--accent);stroke-width:1.5}
.mapnode.start{fill:var(--accent)}
.maplabel{fill:var(--ink);font-size:13px;font-weight:600}
.mapline{fill:none;stroke:var(--accent);stroke-width:2;stroke-dasharray:6 6;opacity:.8}

/* itinerary */
.days{display:grid;gap:14px}
.day{display:grid;grid-template-columns:64px 1fr;gap:18px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px}
.day .d{font-family:ui-monospace,monospace;color:var(--accent);font-weight:700;font-size:.95rem;padding-top:2px}
.day h3{font-size:1.12rem;margin-bottom:6px}
.day .place{color:var(--ink-dim);font-size:.95rem}
.day ul{margin:10px 0 0;padding-left:18px;color:var(--ink-dim);font-size:.94rem}
.day ul li{margin:3px 0}
.tag{display:inline-block;font-size:.74rem;padding:2px 9px;border-radius:999px;margin-right:6px;margin-top:8px}
.tag.camp{background:rgba(111,160,122,.16);color:var(--green);border:1px solid rgba(111,160,122,.4)}
.tag.hard{background:rgba(194,96,79,.16);color:var(--red);border:1px solid rgba(194,96,79,.4)}

/* info grids */
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px}
.grid3{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.card h3{font-size:1.05rem;margin-bottom:10px;display:flex;align-items:center;gap:9px}
.card p,.card li{color:var(--ink-dim);font-size:.94rem;margin:5px 0}
.card ul{margin:0;padding-left:18px}
.dot{width:9px;height:9px;border-radius:50%;flex:none}
.dot.a{background:var(--accent)}.dot.b{background:var(--blue)}.dot.g{background:var(--green)}.dot.r{background:var(--red)}

.hardbox{background:linear-gradient(180deg,rgba(194,96,79,.10),rgba(194,96,79,.03));
  border:1px solid rgba(194,96,79,.4);border-radius:var(--radius);padding:22px}
.hardbox h3{color:#e79a8c;margin-bottom:8px}
.hardbox p{color:var(--ink-dim);font-size:.94rem;margin:6px 0}

.notebox{background:var(--surface-2);border-left:3px solid var(--accent);border-radius:0 12px 12px 0;
  padding:18px 22px;color:var(--ink-dim);font-size:.94rem}
.notebox b{color:var(--ink)}

/* route cards on home */
.route-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;text-decoration:none;color:var(--ink);
  transition:transform .18s ease,border-color .18s ease}
.route-card:hover{transform:translateY(-3px);border-color:var(--accent)}
.route-card .rc-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.route-card h3{font-size:1.15rem}
.route-card p{color:var(--ink-dim);font-size:.92rem;margin:0}
.route-card .rc-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:8px}
.rc-pill{font-size:.76rem;border:1px solid var(--line);border-radius:999px;padding:3px 10px;color:var(--ink-dim)}
.rc-pill.hot{color:var(--accent-soft);border-color:rgba(226,135,60,.45)}
.rc-cover{height:150px;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#222c30,#171d1f)}
.rc-cover svg{width:54px;height:54px;opacity:.85}
.route-card.soon{opacity:.72}
.route-card.soon:hover{transform:none;border-color:var(--line)}

/* pricing table */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius)}
table{width:100%;border-collapse:collapse;min-width:640px;background:var(--surface)}
th,td{text-align:left;padding:14px 18px;border-bottom:1px solid var(--line);font-size:.93rem;vertical-align:top}
th{background:var(--surface-2);color:var(--ink);font-weight:600}
td{color:var(--ink-dim)}
td b{color:var(--ink)}
tr:last-child td{border-bottom:0}

/* steps */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;counter-reset:step}
.step{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;position:relative}
.step::before{counter-increment:step;content:counter(step);
  width:34px;height:34px;border-radius:10px;background:var(--accent);color:var(--accent-ink);
  display:flex;align-items:center;justify-content:center;font-weight:800;margin-bottom:12px}
.step h3{font-size:1.02rem;margin-bottom:7px}
.step p{color:var(--ink-dim);font-size:.9rem;margin:0}

/* dialog form */
dialog{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);color:var(--ink);
  width:min(520px,92vw);padding:0}
dialog::backdrop{background:rgba(8,10,11,.72)}
.dlg-head{padding:22px 24px 6px}
.dlg-head h3{font-size:1.3rem}
.dlg-body{padding:12px 24px 24px}
.field{margin:14px 0}
.field label{display:block;font-size:.88rem;color:var(--ink-dim);margin-bottom:6px}
.field input,.field select,.field textarea{width:100%;background:var(--bg);border:1px solid var(--line);
  color:var(--ink);border-radius:9px;padding:11px 13px;font:inherit}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--accent);border-color:var(--accent)}
.dlg-actions{display:flex;gap:12px;justify-content:flex-end;margin-top:20px;flex-wrap:wrap}
.form-ok{display:none;background:rgba(111,160,122,.14);border:1px solid rgba(111,160,122,.45);
  color:var(--green);border-radius:10px;padding:13px 16px;font-size:.92rem;margin-top:6px}
.stamp{font-size:.8rem;color:var(--ink-dim);margin-top:14px}

footer{padding:36px 0 60px;color:var(--ink-dim);font-size:.85rem}
footer .flinks{display:flex;gap:18px;flex-wrap:wrap;margin-top:10px}
footer .fbrand{color:var(--ink);font-weight:700;margin-bottom:6px}

@media(max-width:760px){
  .navlinks{display:none;position:absolute;top:60px;left:0;right:0;background:var(--surface);
    flex-direction:column;align-items:stretch;padding:10px;border-bottom:1px solid var(--line)}
  .navlinks.open{display:flex}
  .navlinks a{padding:12px 14px}
  .navtoggle{display:block}
  .day{grid-template-columns:1fr;gap:6px}
}
@media print{
  .topnav,.hero-cta,.btn,footer .flinks,.navtoggle{display:none}
  body{background:#fff;color:#111}
  section,.card,.day,.mapcard,.route-card{break-inside:avoid;border-color:#ccc}
  .hero{background:#fff}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none}}