:root{--paper:#f7f4ed;--card:#fffdf8;--ink:#252522;--deep:#14120f;--muted:#706d66;--line:#d7d2c8;--orange:#e0512b;--orange-d:#c9401f;--green:#3f7a45}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.7 'Noto Sans TC','Microsoft JhengHei','PingFang TC',system-ui,sans-serif}
.fx-top{display:flex;align-items:center;justify-content:space-between;padding:12px max(20px,calc(50% - 460px));background:var(--deep);color:var(--paper);position:sticky;top:0;z-index:5}
.fx-brand{display:flex;align-items:center;gap:12px;color:inherit;text-decoration:none;font-weight:700;font-size:20px}
.fx-seal{display:grid;place-items:center;width:36px;height:36px;border-radius:8px;background:var(--orange);color:#fff;font:700 22px/1 serif}
.fx-lang{border:1px solid #f7f4ed55;background:none;color:inherit;border-radius:999px;padding:6px 16px;font:inherit;cursor:pointer}
.fx-wrap{max-width:920px;margin:0 auto;padding:0 20px 80px}
.fx-hero{padding:54px 0 24px}
.fx-eyebrow{margin:0 0 10px;color:var(--orange);letter-spacing:3px;font-weight:700}
.fx-hero h1{margin:0 0 14px;font:700 clamp(30px,5vw,50px)/1.25 serif}
.fx-hero h1 span{color:var(--orange)}
.fx-lead{margin:0 0 24px;color:#4a4842;max-width:640px;font-size:18px}
.fx-steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.fx-steps li{display:flex;gap:12px;align-items:flex-start;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 16px;font-size:15px}
.fx-steps b{flex:0 0 28px;height:28px;border-radius:50%;background:var(--orange);color:#fff;display:grid;place-items:center;font-size:14px}
.fx-me{display:flex;align-items:center;gap:28px;margin:26px 0 18px;padding:18px 22px;background:var(--deep);color:var(--paper);border-radius:14px}
.fx-me small{display:block;color:#f7f4eab3}
.fx-big{display:block;font:700 44px/1 serif;color:#fff}
.fx-meter{flex:1}
.fx-bar{height:10px;background:#f7f4ed26;border-radius:999px;overflow:hidden;margin-bottom:6px}
.fx-bar i{display:block;height:100%;width:0;background:var(--orange);transition:width .6s cubic-bezier(.2,.7,.2,1)}
.fx-tabs{display:flex;gap:6px;border-bottom:2px solid var(--line);margin-bottom:22px;overflow-x:auto}
.fx-tabs button{border:0;background:none;padding:12px 20px;font:600 16px/1 inherit;color:var(--muted);cursor:pointer;border-bottom:3px solid transparent;margin-bottom:-2px;white-space:nowrap}
.fx-tabs button.is-on{color:var(--orange-d);border-bottom-color:var(--orange)}
.fx-panel{display:none}
.fx-panel.is-on{display:block;animation:fxIn .35s ease both}
@keyframes fxIn{from{opacity:0;transform:translateY(8px)}}
.fx-card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin-bottom:14px}
.fx-card h3{margin:0 0 4px;font-size:19px}
.fx-card p{margin:0 0 10px;color:#4a4842;overflow-wrap:anywhere}
.fx-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:12px}
.fx-pill{padding:2px 10px;border:1px solid var(--line);border-radius:999px}
.fx-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.fx-btn{border:0;border-radius:10px;padding:11px 22px;background:var(--orange);color:#fff;font:700 15px/1 inherit;cursor:pointer;transition:background .2s}
.fx-btn:hover{background:var(--orange-d)}
.fx-btn:disabled{background:#bbb4a6;cursor:not-allowed}
.fx-btn.ghost{background:transparent;color:var(--ink);border:1px solid var(--line)}
.fx-btn.ghost:hover{background:#efeadf}
.fx-link{border:0;background:none;color:var(--muted);text-decoration:underline;cursor:pointer;font:inherit;font-size:13px}
.fx-claim{display:none;margin-top:12px;padding-top:12px;border-top:1px dashed var(--line)}
.fx-claim.is-on{display:block}
.fx-claim input{padding:10px 12px;border:1px solid var(--line);border-radius:8px;font:700 18px/1 monospace;letter-spacing:3px;text-transform:uppercase;width:170px}
.fx-claim small{display:block;margin-top:6px;color:var(--muted)}
.fx-form{display:grid;gap:12px;max-width:620px}
.fx-form label{display:grid;gap:4px;font-size:14px;color:var(--muted)}
.fx-form input,.fx-form textarea{padding:11px 12px;border:1px solid var(--line);border-radius:8px;font:16px/1.5 inherit;background:#fff;color:var(--ink)}
.fx-form input:focus,.fx-form textarea:focus,.fx-claim input:focus{outline:2px solid var(--orange);outline-offset:1px}
.fx-hint{margin:0;padding:12px 16px;border-left:4px solid var(--orange);background:#fdf0ea;border-radius:6px;font-size:14px}
.fx-small{color:var(--muted);font-size:13px}
.fx-msg{min-height:22px;margin:0;font-size:14px;color:#a12d20}
.fx-msg.ok{color:var(--green)}
.fx-done{max-width:620px;padding:22px;border:2px solid var(--green);border-radius:14px;background:#f1f7f1}
.fx-done h3{margin:0 0 8px}
.fx-code{margin:14px 0;padding:14px;text-align:center;font:700 34px/1 monospace;letter-spacing:8px;background:#fff;border:2px dashed var(--green);border-radius:10px}
.fx-empty{padding:30px 10px;color:var(--muted);text-align:center}
.fx-rules{margin-top:46px;padding-top:26px;border-top:1px solid var(--line)}
.fx-rules h2{margin:0 0 10px;font-size:22px}
.fx-rules ul{padding-left:20px;margin:0 0 18px;color:#4a4842}
.fx-key{border:1px solid var(--line);border-radius:12px;padding:12px 16px;background:var(--card)}
.fx-key summary{cursor:pointer;font-weight:600}
.fx-keyrow{display:flex;gap:8px;margin-top:8px}
.fx-keyrow input{flex:1;min-width:0;padding:9px 12px;border:1px solid var(--line);border-radius:8px;font:13px monospace}
.fx-toast{position:fixed;left:50%;bottom:28px;transform:translateX(-50%);z-index:20;background:var(--deep);color:#fff;padding:12px 22px;border-radius:999px;font-size:15px;box-shadow:0 12px 40px #0006;max-width:calc(100vw - 32px)}
.fx-toast[hidden]{display:none}
@media(max-width:700px){.fx-steps{grid-template-columns:1fr}.fx-me{flex-direction:column;align-items:flex-start;gap:12px}.fx-meter{width:100%}.fx-hero{padding-top:34px}}
@media(prefers-reduced-motion:reduce){.fx-panel.is-on{animation:none}.fx-bar i{transition:none}}
.fx-banner{display:flex;align-items:center;gap:14px;justify-content:space-between;flex-wrap:wrap;margin-top:22px;padding:14px 18px;background:#fdf0ea;border:1px solid var(--orange);border-radius:12px;font-size:15px}
.fx-banner[hidden]{display:none}
.fx-trcode{font:700 24px/1 monospace;letter-spacing:5px;color:var(--orange-d);align-self:center}
.fx-modal{position:fixed;inset:0;z-index:30;display:flex;flex-direction:column;background:var(--paper)}
.fx-mhead{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 16px;background:var(--deep);color:#fff}
.fx-mhead b{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.fx-mhead .fx-btn{padding:6px 14px;color:#fff;border-color:#f7f4ed55}
.fx-frame{flex:1;width:100%;border:0;background:#fff}
.fx-mfoot{padding:10px 16px calc(10px + env(safe-area-inset-bottom));border-top:1px solid var(--line);background:var(--card)}
.fx-mfoot small{display:block;margin-bottom:6px;color:var(--muted)}
.fx-mfoot input{padding:10px 12px;border:1px solid var(--line);border-radius:8px;font:700 18px/1 monospace;letter-spacing:3px;text-transform:uppercase;width:150px}
.fx-hero{padding:22px 0 6px}
.fx-hero h1{margin:0 0 4px;font-size:clamp(22px,3.6vw,30px)}
.fx-lead{margin:0 0 4px;font-size:15px}
.fx-me{margin:12px 0 16px;padding:10px 16px;gap:16px}
.fx-big{font-size:30px}
.fx-tools{display:flex;gap:8px}
.fx-ico{display:grid;place-items:center;width:42px;height:42px;border-radius:10px;border:1px solid #f7f4ed44;background:transparent;color:#fff;cursor:pointer;transition:background .2s}
.fx-ico:hover{background:#f7f4ed22}
.fx-ico.is-on{background:var(--orange);border-color:var(--orange)}
.fx-pop{position:fixed;inset:0;z-index:40;display:grid;place-items:center;padding:16px;background:#14120f99}
.fx-pop[hidden]{display:none}
.fx-popbox{position:relative;width:min(560px,100%);max-height:calc(100vh - 32px);overflow:auto;padding:24px 22px;background:var(--paper);border-radius:16px;box-shadow:0 20px 60px #0006;animation:fxIn .25s ease both}
.fx-popbox h2{margin:0 0 10px;font-size:22px}
.fx-popx{position:absolute;top:10px;right:12px;border:0;background:none;font-size:28px;line-height:1;cursor:pointer;color:var(--muted)}
@media(max-width:700px){
.fx-hero{padding:16px 0 2px}
.fx-hero h1{font-size:22px}
.fx-lead{font-size:14px;line-height:1.5}
.fx-me{flex-direction:row;flex-wrap:wrap;align-items:center;gap:8px 10px;padding:10px 12px;margin:10px 0 14px}
.fx-me>div:first-child{display:flex;align-items:baseline;gap:8px}
.fx-big{font-size:28px}
.fx-tools{margin-left:auto;order:2;gap:6px}
.fx-ico{width:38px;height:38px}
.fx-meter{order:3;flex:1 0 100%;width:100%}
.fx-meter small{font-size:12px}
.fx-card{padding:14px 16px;margin-bottom:10px}
.fx-card h3{font-size:17px}
}