:root{--bg:#fff;--fg:#222;--card:#f6f6f8;--ac:#2563eb;--bd:#ddd;color-scheme:light}
@media(prefers-color-scheme:dark){:root:not([data-theme=light]){--bg:#121214;--fg:#e8e8e8;--card:#1e1e22;--bd:#333;color-scheme:dark}}
:root[data-theme=dark]{--bg:#121214;--fg:#e8e8e8;--card:#1e1e22;--bd:#333;color-scheme:dark}
*{box-sizing:border-box}body{margin:0;font-family:system-ui,"PingFang TC","Noto Sans TC",sans-serif;background:var(--bg);color:var(--fg);line-height:1.6}
header{background:var(--ac);color:#fff;padding:10px 16px;display:flex;justify-content:space-between;align-items:center}header a{color:#fff;text-decoration:none;font-weight:700}
#theme{background:rgba(255,255,255,.2);border:0;color:#fff;border-radius:20px;padding:6px 12px;font-size:14px;cursor:pointer}
main{max-width:860px;margin:auto;padding:16px}.card{background:var(--card);border:1px solid var(--bd);border-radius:10px;padding:16px;margin:16px 0}
label{display:block;margin:8px 0 2px}input,select{width:100%;padding:10px;font-size:16px;border:1px solid var(--bd);border-radius:6px;background:var(--bg);color:var(--fg)}
input[type=checkbox]{width:auto}.row{display:grid;grid-template-columns:1fr 1fr;gap:0 12px}@media(max-width:560px){.row{grid-template-columns:1fr}}
.res{font-size:1.1em;margin-top:12px}.res b{color:var(--ac);font-size:1.2em}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px}
.grid a{display:block;background:var(--card);border:1px solid var(--bd);border-radius:10px;padding:16px;color:var(--fg);text-decoration:none}
.note{font-size:.85em;opacity:.75}table{width:100%;border-collapse:collapse}td,th{border-bottom:1px solid var(--bd);padding:6px;text-align:left}
footer{text-align:center;padding:24px;font-size:.85em;opacity:.7}
.ad{display:none;margin:16px 0;text-align:center}.ad-label{display:block;font-size:11px;opacity:.5}
.ads-on.ad-top .ad[data-slot=top],.ads-on.ad-content .ad[data-slot=content],.ads-on.ad-bottom .ad[data-slot=bottom]{display:block;min-height:280px}
#aff{margin:24px 0}.aff-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:10px}
.aff-grid a{display:block;background:var(--card);border:1px solid var(--bd);border-radius:10px;padding:12px;color:var(--fg);text-decoration:none}.aff-grid a span{display:block;font-size:.85em;opacity:.75}
footer nav a{color:inherit;margin:0 8px}.legal h2{margin-top:28px}
.article h2{margin-top:32px}.article table{margin:12px 0;font-size:.95em}.article .card{margin:16px 0}.related ul{padding-left:20px}
main.article{overflow-wrap:anywhere}
.drop{border:2px dashed var(--bd);border-radius:10px;padding:24px;text-align:center;cursor:pointer}.drop.on{border-color:var(--ac)}
.drop input{display:none}.btn{background:var(--ac);color:#fff;border:0;border-radius:8px;padding:10px 18px;font-size:16px;cursor:pointer;margin:8px 8px 0 0}
.btn:disabled{opacity:.5}.btn.alt{background:transparent;color:var(--ac);border:1px solid var(--ac)}
textarea{width:100%;min-height:220px;padding:10px;font-size:16px;border:1px solid var(--bd);border-radius:6px;background:var(--bg);color:var(--fg)}
.status{font-size:.9em;opacity:.85;margin:8px 0;white-space:pre-wrap}.preview{max-width:100%;max-height:420px;display:block;margin:8px auto;border-radius:6px}
.checker{background:repeating-conic-gradient(#ccc 0 25%,#fff 0 50%) 0 0/20px 20px}.badge{display:inline-block;background:var(--card);border:1px solid var(--bd);border-radius:20px;padding:2px 10px;font-size:.8em;margin:2px}
.files li{margin:4px 0}.thumbs{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:8px}.thumbs img{width:100%;border:1px solid var(--bd)}
.grid a p{margin:4px 0 0;font-size:.9em;opacity:.8}