:root{
  --bg:#FAFAF8; --surface:#FFFFFF; --ink:#17202A; --muted:#66737D; --line:#E3E6E2; --fill:#F0F2EE;
  --accent:#C8412B; --accent-soft:#F6E3DE; --river:#24666B; --river-soft:#DDEBEA; --ok:#2F7D4F; --warn:#B7791F;
  --shadow:0 1px 2px rgba(23,32,42,.06),0 8px 24px -12px rgba(23,32,42,.18);
  --glyph-op:.06;
  --display:"Bricolage Grotesque","Avenir Next","Helvetica Neue",Arial,sans-serif;
  --body:"Public Sans","Helvetica Neue",Arial,sans-serif;
  --zh:"Noto Serif SC","Songti SC","STSong","SimSun",serif;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --bg:#121A22; --surface:#1A2530; --ink:#EDEFEA; --muted:#9AA7AE; --line:#2A3641; --fill:#202C37;
    --accent:#E2563F; --accent-soft:#3A241F; --river:#58B0B3; --river-soft:#1E3538; --ok:#6CC38E; --warn:#E0B05A;
    --shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px -12px rgba(0,0,0,.6); --glyph-op:.09; color-scheme:dark;
  }
}
:root[data-theme="dark"]{
  --bg:#121A22; --surface:#1A2530; --ink:#EDEFEA; --muted:#9AA7AE; --line:#2A3641; --fill:#202C37;
  --accent:#E2563F; --accent-soft:#3A241F; --river:#58B0B3; --river-soft:#1E3538; --ok:#6CC38E; --warn:#E0B05A;
  --shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px -12px rgba(0,0,0,.6); --glyph-op:.09; color-scheme:dark;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:16px;line-height:1.55;padding-inline:20px;padding-block:0}
a{color:var(--river);text-decoration:none}
a:hover{text-decoration:underline}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
h1,h2,h3,h4{font-family:var(--display);letter-spacing:-.01em;text-wrap:balance;margin:0}
h1{font-size:clamp(2.2rem,5.5vw,3.6rem);line-height:1.02;font-weight:800}
h2{font-size:clamp(1.6rem,3vw,2.1rem);line-height:1.1;font-weight:700}
h3{font-size:1.15rem;font-weight:700;line-height:1.25}
p{margin:0}
.zh{font-family:var(--zh);font-weight:600}
.wrap{max-width:1120px;margin:0 auto}
.prose{max-width:66ch}
.eyebrow{font-size:.75rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
.muted{color:var(--muted)}
.small{font-size:.875rem}
.num{font-variant-numeric:tabular-nums}
button{font:inherit;color:inherit}
.btn{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--line);background:var(--surface);color:var(--ink);padding:10px 16px;border-radius:999px;cursor:pointer;font-weight:600;font-size:.95rem;transition:background .15s,border-color .15s}
.btn:hover{background:var(--fill)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.primary:hover{filter:brightness(.95)}
.btn.ghost{background:transparent}
.btn:disabled{opacity:.5;cursor:default}
.chip{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--line);background:var(--surface);padding:6px 12px;border-radius:999px;font-size:.85rem;font-weight:600;cursor:pointer;user-select:none}
.chip[aria-pressed="true"]{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.chips{display:flex;flex-wrap:wrap;gap:8px}

/* header */
.top{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 86%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);margin-inline:-20px;padding-inline:20px}
.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;height:60px}
.brand{display:flex;align-items:center;gap:10px;font-family:var(--display);font-weight:800;font-size:1.25rem;color:var(--ink);letter-spacing:-.02em}
.brand .mark{width:32px;height:32px;border-radius:9px;background:var(--accent);color:#fff;display:grid;place-items:center;font-family:var(--zh);font-size:1.1rem;font-weight:600}
.nav{display:flex;gap:4px;flex-wrap:wrap}
.nav a{color:var(--muted);font-weight:600;font-size:.9rem;padding:6px 10px;border-radius:8px}
.nav a:hover{color:var(--ink);background:var(--fill);text-decoration:none}
@media (max-width:760px){.nav{display:none}}

/* hero */
.hero{position:relative;padding-block:56px 40px;display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:start;overflow:hidden}
.hero .bg-glyph{position:absolute;right:-.05em;top:-.35em;font-family:var(--zh);font-size:min(46vw,520px);line-height:1;color:var(--accent);opacity:var(--glyph-op);pointer-events:none;user-select:none;font-weight:600}
.hero h1 .accent{color:var(--accent)}
.hero .lede{font-size:1.15rem;color:var(--muted);max-width:52ch;margin-top:18px}
.hero .proof{display:flex;gap:22px;flex-wrap:wrap;margin-top:26px}
.hero .proof div{display:grid;gap:2px}
.hero .proof b{font-family:var(--display);font-size:1.5rem;font-weight:800;line-height:1}
.hero .proof span{font-size:.8rem;color:var(--muted)}
@media (max-width:860px){.hero{grid-template-columns:1fr;padding-block:36px 24px}}

/* planner card */
.planner{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:20px;box-shadow:var(--shadow);display:grid;gap:14px}
.planner .row{display:grid;gap:8px}
.planner label{font-size:.75rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.field{display:flex;align-items:center;gap:10px;border:1px solid var(--line);background:var(--fill);border-radius:14px;padding:10px 12px}
.field input,.field select,.field textarea{border:0;background:transparent;font:inherit;color:inherit;width:100%;outline:none}
.field textarea{resize:vertical;min-height:52px}
.seg{display:flex;border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--fill)}
.seg button{flex:1;border:0;background:transparent;padding:9px 4px;font-weight:700;cursor:pointer;color:var(--muted)}
.seg button[aria-pressed="true"]{background:var(--ink);color:var(--bg)}
.planner .actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.planner .hint{font-size:.8rem;color:var(--muted)}

/* sections */
section.block{padding-block:48px;border-top:1px solid var(--line)}
.sec-head{display:flex;justify-content:space-between;align-items:end;gap:16px;flex-wrap:wrap;margin-bottom:22px}
.sec-head p{color:var(--muted);max-width:60ch;margin-top:6px}

/* destinations */
.dest-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
@media (max-width:1000px){.dest-grid{grid-template-columns:repeat(3,1fr)}}
@media (max-width:600px){.dest-grid{grid-template-columns:repeat(2,1fr)}}
.dest{display:grid;gap:10px;padding:18px 16px;border:1px solid var(--line);border-radius:18px;background:var(--surface);color:var(--ink);transition:transform .15s,border-color .15s}
.dest:hover{transform:translateY(-2px);border-color:var(--accent);text-decoration:none}
.dest .g{font-family:var(--zh);font-size:2.4rem;line-height:1;color:var(--accent)}
.dest b{font-family:var(--display);font-size:1.15rem;font-weight:800}
.dest .t{font-size:.8rem;color:var(--muted)}
.dest .d{font-size:.78rem;color:var(--river);font-weight:700}

/* plan output */
.plan{display:grid;gap:16px}
.plan-meta{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;align-items:center}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:.75rem;font-weight:700;padding:4px 10px;border-radius:999px;background:var(--fill);color:var(--muted)}
.badge.ai{background:var(--river-soft);color:var(--river)}
.days{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:14px}
.day{background:var(--surface);border:1px solid var(--line);border-radius:20px;overflow:hidden}
.day header{padding:14px 16px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:baseline;gap:8px}
.day header b{font-family:var(--display);font-size:1.05rem;font-weight:800}
.day header span{font-size:.8rem;color:var(--muted)}
.slot{display:grid;grid-template-columns:52px 1fr;gap:12px;padding:12px 16px;border-bottom:1px solid var(--line);cursor:pointer}
.slot:last-child{border-bottom:0}
.slot:hover{background:var(--fill)}
.slot .g{width:52px;height:52px;border-radius:14px;background:var(--accent-soft);color:var(--accent);display:grid;place-items:center;font-family:var(--zh);font-size:1.5rem}
.slot .g.eat{background:#F8E9D6;color:#A85A12}
.slot .g.exp{background:#EBE2F2;color:#6B3F86}
:root[data-theme="dark"] .slot .g.eat,:root:not([data-theme="light"]) .slot .g.eat{background:#3B2A17;color:#F0B26A}
:root[data-theme="dark"] .slot .g.exp,:root:not([data-theme="light"]) .slot .g.exp{background:#2E2338;color:#CBA6E6}
@media (prefers-color-scheme:light){:root:not([data-theme="dark"]) .slot .g.eat{background:#F8E9D6;color:#A85A12}:root:not([data-theme="dark"]) .slot .g.exp{background:#EBE2F2;color:#6B3F86}}
.slot .lab{font-size:.7rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.slot .ti{font-weight:700}
.slot .ti .zh{font-weight:500;color:var(--muted);margin-left:6px;font-size:.9em}
.slot .why{font-size:.9rem;color:var(--muted);margin-top:2px}
.slot .go{font-size:.8rem;color:var(--river);margin-top:4px}
.notes{font-size:.9rem;color:var(--muted);background:var(--fill);border-radius:14px;padding:12px 14px}

/* generic cards */
.grid{display:grid;gap:12px}
.grid.c2{grid-template-columns:repeat(2,1fr)}
.grid.c3{grid-template-columns:repeat(3,1fr)}
.grid.c4{grid-template-columns:repeat(4,1fr)}
@media (max-width:900px){.grid.c4{grid-template-columns:repeat(2,1fr)}.grid.c3{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.grid.c4,.grid.c3,.grid.c2{grid-template-columns:1fr}}
.card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:16px;display:grid;gap:8px;align-content:start}
.card.link{cursor:pointer;color:var(--ink)}
.card.link:hover{border-color:var(--accent);text-decoration:none}
.card .g{font-family:var(--zh);font-size:1.9rem;line-height:1;color:var(--accent)}
.card h3 .zh{font-weight:500;color:var(--muted);font-size:.9em;margin-left:6px}
.meta{display:flex;gap:10px;flex-wrap:wrap;font-size:.8rem;color:var(--muted);align-items:center}
.spice{color:var(--accent);letter-spacing:1px}
.spice.none{color:var(--muted)}

/* local friends */
.friend{display:grid;gap:10px}
.friend .head{display:flex;gap:12px;align-items:center}
.friend .av{width:48px;height:48px;border-radius:50%;background:var(--river-soft);color:var(--river);display:grid;place-items:center;font-family:var(--zh);font-size:1.3rem}
.friend .name{font-family:var(--display);font-weight:800;font-size:1.1rem}
.friend .stars{color:var(--warn);font-size:.85rem}
.friend .price{font-weight:700;color:var(--river)}
.sample{font-size:.7rem;font-weight:700;letter-spacing:.08em;color:var(--muted);border:1px dashed var(--line);padding:2px 8px;border-radius:999px}
.book{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:20px;display:grid;gap:12px}
.book .two{display:grid;grid-template-columns:1fr 1fr;gap:10px}
@media (max-width:560px){.book .two{grid-template-columns:1fr}}
.two-col{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:start}
@media (max-width:900px){.two-col{grid-template-columns:1fr}}

/* practical */
.kv{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;font-size:.92rem}
.kv b{font-family:var(--display);font-size:1.15rem;color:var(--accent);font-weight:800}
.steps{margin:0;padding-left:20px;display:grid;gap:6px;font-size:.92rem}
.steps li::marker{color:var(--river);font-weight:700}
.showcard{background:var(--ink);color:var(--bg);border-radius:18px;padding:18px;display:grid;gap:8px}
.showcard .zh{font-size:1.35rem;line-height:1.45}
.showcard .en{font-size:.85rem;opacity:.75}
.result{border-radius:14px;padding:12px 14px;background:var(--fill);font-size:.92rem;display:grid;gap:4px}
.result.ok{background:color-mix(in srgb,var(--ok) 14%,var(--surface));}
.result.warn{background:color-mix(in srgb,var(--warn) 16%,var(--surface));}
.result b{font-family:var(--display)}

/* articles */
.art-list{display:grid;gap:0;border-top:1px solid var(--line)}
.art-row{display:grid;grid-template-columns:1fr auto;gap:16px;padding:16px 0;border-bottom:1px solid var(--line);color:var(--ink);align-items:center}
.art-row:hover{text-decoration:none}
.art-row:hover h3{color:var(--accent)}
.art-row p{color:var(--muted);font-size:.92rem;margin-top:4px;max-width:70ch}
.art-row .m{font-size:.8rem;color:var(--muted);white-space:nowrap}
.article{padding-block:40px;max-width:70ch}
.article h1{font-size:clamp(1.9rem,4vw,2.8rem)}
.article .dek{font-size:1.15rem;color:var(--muted);margin-top:14px}
.article .meta{margin-top:14px}
.article h2{font-size:1.4rem;margin-top:34px;margin-bottom:10px}
.article p{margin-top:12px}
.article ul{margin:12px 0 0;padding-left:20px;display:grid;gap:8px}
.back{display:inline-flex;gap:6px;align-items:center;font-weight:600;margin-bottom:22px}
.cta-box{background:var(--accent-soft);border-radius:18px;padding:18px;margin-top:34px;display:grid;gap:8px}

/* dialog */
dialog{border:0;border-radius:22px;padding:0;max-width:min(560px,calc(100vw - 32px));width:100%;background:var(--surface);color:var(--ink);box-shadow:var(--shadow)}
dialog::backdrop{background:rgba(10,14,18,.55);backdrop-filter:blur(2px)}
.dlg{padding:22px;display:grid;gap:12px}
.dlg .top-row{display:flex;justify-content:space-between;align-items:start;gap:12px}
.dlg .g{font-family:var(--zh);font-size:2.6rem;line-height:1;color:var(--accent)}
.dlg h3{font-size:1.4rem}
.dlg h4{font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-top:6px}
.say{display:grid;gap:6px;background:var(--fill);border-radius:14px;padding:12px 14px}
.say .zh{font-size:1.2rem}
.say .py{font-style:italic;color:var(--muted);font-size:.9rem}
.x{border:0;background:var(--fill);width:34px;height:34px;border-radius:50%;cursor:pointer;font-size:1rem}

/* footer */
footer{border-top:1px solid var(--line);padding-block:32px 40px;display:grid;gap:16px;color:var(--muted);font-size:.9rem}
footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr;gap:20px}
@media (max-width:700px){footer .cols{grid-template-columns:1fr}}
footer a{color:var(--muted)}
.partner{background:var(--ink);color:var(--bg);border-radius:22px;padding:28px;display:grid;grid-template-columns:1.2fr .8fr;gap:20px;align-items:center}
.partner h2{color:var(--bg)}
.partner p{opacity:.8}
.partner .btn{background:var(--bg);color:var(--ink);border-color:transparent}
@media (max-width:760px){.partner{grid-template-columns:1fr}}
.toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:999px;font-weight:600;box-shadow:var(--shadow);z-index:50}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}
[hidden]{display:none!important}