:root{--bg:#0d1017;--card:#161b26;--line:#252c3b;--text:#e8ecf4;--mute:#8a94a8;--accent:#6ea8ff}
@media (prefers-color-scheme:light){:root{--bg:#f5f7fb;--card:#fff;--line:#e1e5ee;--text:#1a2030;--mute:#5d6678;--accent:#2f6fed}}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font-family:system-ui,"Noto Sans TC",sans-serif}
main{max-width:960px;margin:0 auto;padding:56px 16px}
header{text-align:center;margin-bottom:32px}
h1{margin:0;font-size:clamp(28px,5vw,40px)}
header p{color:var(--mute);margin:8px 0 24px}
#q{width:min(420px,100%);padding:12px 16px;border-radius:12px;border:1px solid var(--line);background:var(--card);color:var(--text);font-size:16px;transition:border-color .2s,box-shadow .2s}
#q:focus{outline:0;border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 25%,transparent)}
#tabs{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-top:16px}
#tabs button{padding:6px 14px;border-radius:999px;border:1px solid var(--line);background:none;color:var(--mute);cursor:pointer;transition:all .2s}
#tabs button:hover{color:var(--text)}
#tabs button.on{background:var(--accent);border-color:var(--accent);color:#fff}
#grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}
.card{display:flex;gap:14px;align-items:center;padding:18px;border-radius:16px;background:var(--card);border:1px solid var(--line);color:inherit;text-decoration:none;
  opacity:0;transform:translateY(8px);animation:in .4s ease forwards;animation-delay:calc(var(--i)*40ms);
  transition:transform .2s,border-color .2s,box-shadow .2s}
.card:hover{transform:translateY(-3px);border-color:var(--accent);box-shadow:0 8px 24px rgba(0,0,0,.25)}
.card:active{transform:scale(.97);transition-duration:.15s}
.icon{font-size:30px;width:52px;height:52px;display:grid;place-items:center;border-radius:12px;background:color-mix(in srgb,var(--accent) 14%,transparent);flex:none}
.card h3{margin:0;font-size:17px}
.card p{margin:4px 0 0;color:var(--mute);font-size:13px}
.arrow{margin-left:auto;color:var(--mute);transition:transform .2s,color .2s}
.card:hover .arrow{transform:translateX(4px);color:var(--accent)}
#empty{text-align:center;color:var(--mute)}
@keyframes in{to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.card{opacity:1;transform:none}}