:root{
  --bg:#fbf6ee; --card:#ffffff; --ink:#2b2a33; --muted:#7b7686; --line:#ece4d6;
  --accent:#e8603c; --accent-soft:#fde7df; --blue:#2f6fd6; --blue-soft:#e3edfc;
  --green:#2e9a6a; --green-soft:#dff3ea; --hl:#fff3c4; --pink:#c24b7a; --red:#d64545; --red-soft:#fde4e4;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;background:var(--bg);color:var(--ink);font-size:15px;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Helvetica Neue","Segoe UI",sans-serif}
body{padding:env(safe-area-inset-top) env(safe-area-inset-right) calc(env(safe-area-inset-bottom) + 18px) env(safe-area-inset-left)}
button,input{font:inherit;color:inherit}
button{border:none;background:none;cursor:pointer}
a{color:inherit;text-decoration:none}
.wrap{max-width:820px;margin:0 auto;padding:12px 14px}
.center{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}
.panel{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:26px 22px;width:min(420px,100%)}
.panel h1{margin:0 0 4px;font-size:22px}
.panel p{margin:0 0 18px;color:var(--muted);font-size:14px}
.input{width:100%;height:50px;border-radius:14px;border:1px solid var(--line);background:#fff;font-size:18px;padding:0 14px;outline:none}
.input:focus{border-color:var(--accent)}
.big{height:44px;padding:0 16px;border-radius:12px;font-size:15px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;gap:6px}
.big.primary{background:var(--accent);color:#fff}
.big.green{background:var(--green);color:#fff}
.big.stop{background:#3a3846;color:#fff}
.big.ghost{background:var(--card);border:1px solid var(--line);color:var(--muted)}
.big.wide{width:100%;height:50px;font-size:17px;margin-top:12px}
.err{color:var(--red);font-size:14px;min-height:20px;margin-top:10px}
.topbar{display:flex;align-items:center;gap:10px;margin:2px 0 12px}
.topbar .title{flex:1;font-size:17px;font-weight:700}
.topbar .title small{display:block;font-size:12px;color:var(--muted);font-weight:500}
.chip-btn{height:38px;padding:0 12px;border-radius:12px;background:var(--card);border:1px solid var(--line);font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.kid-badge{height:38px;padding:0 12px;border-radius:99px;font-size:14px;font-weight:700;display:inline-flex;align-items:center;gap:6px;color:#fff}
.icon-btn{width:40px;height:40px;border-radius:12px;background:var(--card);border:1px solid var(--line);font-size:18px;display:grid;place-items:center;flex:0 0 auto}
.icon-btn:disabled{opacity:.35}
.tip{font-size:12.5px;color:var(--muted);line-height:1.6;background:#f6efe3;border-radius:12px;padding:10px 12px;margin-top:14px}
.toast{position:fixed;left:50%;bottom:calc(24px + env(safe-area-inset-bottom));transform:translateX(-50%);background:#2b2a33;color:#fff;padding:10px 16px;border-radius:12px;font-size:14px;z-index:50;opacity:0;transition:opacity .2s;pointer-events:none}
.toast.on{opacity:1}