/* [新增 2026-10-14] 管理後台專用樣式，不影響公開頁面。 */
:root{--red:#b52228;--ink:#20242a;--muted:#69727b;--paper:#f7f6f2;--line:#e5e2da;--blue:#0c6473}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.65 "Noto Sans TC","Microsoft JhengHei",Arial,sans-serif}
a{color:inherit;text-decoration:none}.admin-header{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:1rem max(5vw,20px);background:#fff;border-bottom:1px solid var(--line)}.admin-brand{font-weight:800;letter-spacing:.02em}.admin-brand span{margin-left:.7rem;color:var(--red);font-size:.88rem}.admin-public-link{color:var(--blue);font-size:.88rem}.admin-shell{width:min(1100px,92vw);min-height:72vh;margin:2.2rem auto 4rem}.admin-title{margin:0 0 .3rem;font-size:clamp(1.7rem,4vw,2.4rem)}.admin-lede{margin:.1rem 0 1.5rem;color:var(--muted)}.admin-card{margin:1rem 0;padding:1.35rem 1.5rem;background:#fff;border:1px solid var(--line);border-radius:6px;box-shadow:0 8px 24px rgba(35,34,28,.04)}.admin-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem}.admin-table-card h2{margin:0 0 .4rem;font-size:1.15rem}.admin-table-card p{margin:.2rem 0 1rem;color:var(--muted);font-size:.9rem}.admin-button,button{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;min-height:42px;padding:.55rem .9rem;border:1px solid var(--red);border-radius:4px;background:var(--red);color:#fff;font:inherit;font-size:.9rem;font-weight:700;cursor:pointer}.admin-button--secondary{border-color:#d4d0c8;background:#fff;color:var(--ink)}button:disabled{opacity:.55;cursor:not-allowed}.admin-actions{display:flex;flex-wrap:wrap;gap:.65rem;margin:1rem 0}.admin-form{display:grid;gap:1rem;max-width:760px}.admin-form label{display:grid;gap:.35rem;font-weight:700}.admin-form input[type=text],.admin-form input[type=password],.admin-form input[type=number],.admin-form textarea{width:100%;padding:.7rem .75rem;border:1px solid #cfcac1;border-radius:4px;background:#fff;color:var(--ink);font:inherit}.admin-form textarea{min-height:160px;resize:vertical}.admin-help{color:var(--muted);font-size:.83rem;font-weight:400}.admin-alert{margin:1rem 0;padding:.8rem 1rem;border-left:4px solid var(--blue);background:#eaf3f3;color:#29464b}.admin-alert--error{border-color:var(--red);background:#fff0ee;color:#7c1f21}.admin-list{display:grid;gap:.55rem;margin:1rem 0}.admin-list-item{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:.75rem 1rem;background:#fff;border:1px solid var(--line);border-radius:4px}.admin-list-item small{display:block;color:var(--muted)}.admin-list-item form{margin:0}.admin-inline{display:inline}.admin-footer{padding:1.2rem 5vw;background:#1d2226;color:#b7bdbe;text-align:center;font-size:.78rem}.admin-back{display:inline-block;margin:0 0 1rem;color:var(--blue);font-size:.88rem}.admin-table-note{color:var(--muted);font-size:.82rem}.admin-login{max-width:500px;margin:3rem auto}.admin-brand:focus-visible,.admin-public-link:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid #e0a23d;outline-offset:3px}
@media(max-width:620px){.admin-header{align-items:flex-start;flex-direction:column}.admin-shell{margin-top:1.2rem}.admin-card{padding:1rem}.admin-list-item{align-items:flex-start;flex-direction:column}.admin-login{margin:1rem auto}}

/* [新增 2026-10-15] 站外原始檔唯讀瀏覽器。 */
.archive-list{list-style:none;margin:0;padding:0}.archive-list li{display:flex;flex-wrap:wrap;align-items:baseline;gap:.55rem;padding:.65rem 0;border-bottom:1px solid var(--line)}.archive-list li:last-child{border-bottom:0}.archive-list a{color:var(--blue);overflow-wrap:anywhere}.archive-list span,.archive-download{color:var(--muted);font-size:.82rem}.archive-code{max-width:100%;overflow:auto;margin:1rem 0 0;padding:1rem;background:#171b20;color:#f5f3ec;border-radius:4px;white-space:pre-wrap;overflow-wrap:anywhere;font:13px/1.55 Consolas,"Cascadia Code","Courier New",monospace}.archive-code code{font:inherit}