:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--bg:#dce5df;--bg-accent:#c5d6cb;--surface:#fff;--ink:#122018;--ink-soft:#3d5246;--muted:#5f7268;--line:#c9d5ce;--whatsapp:#128c7e;--whatsapp-deep:#075e54;--bubble-them:#fff;--bubble-me:#d9fdd3;--system:#eef3f0;--danger:#9b1c1c;--success:#0f6b4c;--warn:#8a5a00;--shadow:0 10px 30px #1220181f;--radius:18px;--font:"Noto Sans TC", "Microsoft JhengHei", "PingFang TC", "Heiti TC", sans-serif;font-family:var(--font);font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;font-size:18px;line-height:1.55}*{box-sizing:border-box}html,body,#root{min-height:100%;margin:0}body{min-height:100vh;color:var(--ink);background:radial-gradient(circle at top left, #128c7e29, transparent 40%), linear-gradient(160deg, var(--bg), var(--bg-accent))}button,a{font:inherit}button{cursor:pointer;border:none}.app-shell{justify-content:center;min-height:100dvh;padding:12px;display:flex}.screen{background:var(--surface);width:min(720px,100%);min-height:calc(100dvh - 24px);box-shadow:var(--shadow);border-radius:24px;overflow:hidden}.btn{border-radius:14px;justify-content:center;align-items:center;gap:8px;width:100%;min-height:56px;padding:14px 18px;font-weight:700;text-decoration:none;transition:transform .15s,filter .15s;display:inline-flex}.btn:active{transform:scale(.98)}.btn-xl{min-height:64px;font-size:1.25rem}.btn-primary{background:var(--whatsapp);color:#fff}.btn-primary:hover{filter:brightness(1.05)}.btn-secondary{color:var(--whatsapp-deep);background:#eef4f1;border:2px solid #b9d2ca}.btn-choice{color:var(--ink);text-align:left;background:#fff;border:2px solid #b7cfc6;justify-content:flex-start;font-size:1.125rem;line-height:1.4}.btn-choice:hover{border-color:var(--whatsapp);background:#f3fbf8}.sound-toggle{min-height:44px;color:var(--whatsapp-deep);white-space:nowrap;background:#ffffffe6;border:2px solid #b9d2ca;border-radius:999px;padding:8px 14px;font-size:1rem;font-weight:700}.start-screen{background:linear-gradient(#e8f5f1 0%,#fff 42% 100%);flex-direction:column;padding:20px;display:flex}.start-top{justify-content:flex-end;display:flex}.start-hero{flex-direction:column;flex:1;justify-content:center;padding:24px 8px 12px;display:flex}.start-kicker{color:var(--whatsapp-deep);margin:0 0 12px;font-size:1.05rem;font-weight:700}.start-title{letter-spacing:.02em;color:var(--ink);margin:0;font-size:clamp(2.4rem,8vw,3.4rem);line-height:1.15}.start-lead{color:var(--ink-soft);max-width:28ch;margin:20px 0 0;font-size:1.3rem}.start-meta{color:var(--muted);margin:18px 0 0;font-size:1.05rem}.start-actions{gap:12px;padding-bottom:8px;display:grid}.start-note{text-align:center;color:var(--muted);margin:0;font-size:.95rem}.chat-screen{background:#ece5dd;grid-template-rows:auto 1fr auto;display:grid}.chat-header{background:var(--whatsapp-deep);color:#fff;justify-content:space-between;align-items:center;gap:12px;padding:14px 16px;display:flex}.chat-contact{align-items:center;gap:12px;min-width:0;display:flex}.chat-avatar{background:#4a8f84;border-radius:50%;flex-shrink:0;place-items:center;width:48px;height:48px;font-size:1.4rem;font-weight:700;display:grid}.chat-name{margin:0;font-size:1.35rem;line-height:1.2}.chat-status{opacity:.85;margin:2px 0 0;font-size:.95rem}.chat-header .sound-toggle{color:#fff;background:#ffffff24;border-color:#ffffff59}.chat-body{flex-direction:column;gap:10px;padding:18px 14px 10px;display:flex;overflow-y:auto}.bubble-row{display:flex}.bubble-row--them,.bubble-row--system{justify-content:flex-start}.bubble-row--me{justify-content:flex-end}.bubble{white-space:pre-wrap;word-break:break-word;border-radius:16px;max-width:min(92%,520px);padding:14px 16px;font-size:1.2rem;line-height:1.5;box-shadow:0 1px 1px #00000014}.bubble--them{background:var(--bubble-them);border-top-left-radius:6px}.bubble--me{background:var(--bubble-me);border-top-right-radius:6px}.bubble--system{background:var(--system);color:var(--ink-soft);border:1px solid var(--line);text-align:center;box-shadow:none;margin-inline:auto;font-size:1.08rem}.chat-footer{background:#f0f2f5;border-top:1px solid #d5ddd8;padding:14px}.choice-list{gap:10px;display:grid}.choice-hint{color:var(--muted);margin:0 0 2px;font-size:1.05rem;font-weight:700}.chat-waiting{text-align:center;color:var(--muted);margin:0;padding:10px 0;font-size:1.05rem}.end-screen{background:#fff;flex-direction:column;padding:20px;display:flex}.end-top{justify-content:flex-end;display:flex}.end-card{flex-direction:column;flex:1;gap:16px;padding:8px 4px 12px;display:flex}.end-label{letter-spacing:.04em;margin:0;font-size:1.05rem;font-weight:800}.end-screen--scammed .end-label,.end-screen--scammed .end-title{color:var(--danger)}.end-screen--success .end-label,.end-screen--success .end-title{color:var(--success)}.end-screen--almost .end-label,.end-screen--almost .end-title{color:var(--warn)}.end-title{margin:0;font-size:clamp(1.8rem,6vw,2.4rem);line-height:1.25}.end-summary{color:var(--ink-soft);margin:0;font-size:1.2rem}.end-lessons,.end-tips{border:1px solid var(--line);border-radius:var(--radius);background:#f4f8f6;padding:16px 18px}.end-lessons h2,.end-tips h2{margin:0 0 10px;font-size:1.2rem}.end-lessons ul{gap:10px;margin:0;padding-left:1.2em;font-size:1.1rem;display:grid}.tips-line{color:var(--whatsapp-deep);letter-spacing:.04em;margin:0;font-size:1.35rem;font-weight:800}.end-actions{gap:10px;margin-top:auto;display:grid}.end-footnote{color:var(--muted);text-align:center;margin:0;font-size:.98rem}@media (width<=480px){.app-shell{padding:0}.screen{border-radius:0;width:100%;min-height:100dvh}.bubble{font-size:1.15rem}.btn-choice{font-size:1.08rem}}