:root{--m-bg:#fafafa;--m-ink:#0a0a0a;--m-muted:#525252;--m-line:#ebebeb;--m-surface:#ffffff;--m-accent:#2563eb;--m-ok:#15803d;--m-ok-bg:#f0fdf4;--m-danger:#b91c1c;--m-danger-bg:#fef2f2;--font:"Segoe UI", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", sans-serif}*,::after,::before{box-sizing:border-box}body,html{margin:0;min-height:100%;font-family:var(--font);color:var(--m-ink);background:var(--m-bg);-webkit-font-smoothing:antialiased}a{color:var(--m-accent)}button{font:inherit}code{font-size:.92em}.shell{width:min(100% - 32px,640px);margin:48px auto}.shell--wide{width:min(100% - 32px,960px)}.shell .card+.card{margin-top:20px}.card__head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:4px}.card__head h1{margin:0}.field{display:flex;flex-direction:column;gap:6px;margin:0 0 12px;font-size:13px;color:var(--m-muted)}.field input,.field textarea{font:inherit;color:var(--m-ink);border:1px solid var(--m-line);border-radius:10px;padding:10px 12px;background:#fff}.field textarea{resize:vertical;min-height:120px}.row{display:flex;flex-wrap:wrap;align-items:center;gap:10px}.btn--ghost{background:#f5f5f5;color:var(--m-ink)}.hint,.manage-field label{font-size:13px;color:var(--m-muted)}.inbox{display:grid;grid-template-columns:minmax(220px,320px) 1fr;gap:16px;margin-top:12px}@media (max-width:720px){.inbox{grid-template-columns:1fr}}.inbox__list{list-style:none;margin:0;padding:0;border:1px solid var(--m-line);border-radius:12px;max-height:480px;overflow:auto;background:#fff}.inbox__empty{padding:16px;color:var(--m-muted);font-size:13px}.inbox__item{display:flex;flex-direction:column;gap:4px;padding:12px 14px;border-bottom:1px solid var(--m-line);cursor:pointer}.inbox__item:last-child{border-bottom:0}.inbox__item.is-active,.inbox__item:hover{background:#f5f8ff}.inbox__item-subj{font-size:14px;font-weight:600}.inbox__item-meta{font-size:12px;color:var(--m-muted);line-height:1.4}.inbox__detail{min-width:0}.inbox__meta{font-size:13px;line-height:1.6;margin-bottom:12px}.inbox__text{margin:0 0 16px;padding:12px;border-radius:10px;background:#0a0a0a;color:#e5e5e5;font-size:12px;white-space:pre-wrap;overflow:auto;max-height:320px}.inbox__html{width:100%;height:280px;margin-bottom:16px}.inbox__replies h2{margin:0 0 8px;font-size:15px}.inbox__html,.manage-field input,.reply-card{border:1px solid var(--m-line);border-radius:10px;background:#fff}.reply-card{padding:12px;margin-bottom:10px}.reply-card pre{margin:8px 0 0;white-space:pre-wrap;font-size:13px}.shell__head{margin-bottom:24px}.shell__head--row{display:flex;flex-wrap:wrap;align-items:flex-start;justify-content:space-between;gap:16px}.manage-login{min-height:100vh;display:grid;place-items:center;padding:24px;background:var(--m-bg)}.manage-login__card{width:min(100%,400px);background:var(--m-surface);border:1px solid var(--m-line);border-radius:16px;padding:36px 32px 32px}.manage-login__brand{display:flex;align-items:center;gap:10px;margin:0 0 6px;font-size:13px;font-weight:600;color:var(--m-muted)}.manage-login__brand img,.shell__brand img{display:block}.manage-login h1{margin:0 0 24px;font-size:24px;font-weight:650;letter-spacing:-.03em}.manage-login__foot{margin:16px 0 0;text-align:center}.manage-field{display:grid;gap:6px;margin-bottom:14px}.manage-field input{width:100%;padding:10px 12px;color:var(--m-ink)}.manage-status{margin:0 0 14px;padding:8px 12px;border-radius:8px;background:var(--m-danger-bg);color:var(--m-danger);font-size:13px}.manage-status.is-ok{background:var(--m-ok-bg);color:var(--m-ok)}.btn--block{width:100%}.btn:disabled{opacity:.55;cursor:not-allowed}.shell__brand{display:flex;align-items:center;gap:10px;margin:0 0 6px;font-size:15px;font-weight:650}.shell__muted{margin:0;font-size:13px;color:var(--m-muted);line-height:1.5}.card{background:var(--m-surface);border:1px solid var(--m-line);border-radius:16px;padding:28px 24px}.card h1{margin:0 0 12px;font-size:22px;letter-spacing:-.03em}.card .shell__muted{margin-bottom:16px}.status{margin:0 0 12px;padding:10px 12px;font-size:14px;background:#f5f5f5}.status.is-ok{background:var(--m-ok-bg);color:var(--m-ok)}.status.is-bad{background:var(--m-danger-bg);color:var(--m-danger)}.btn,.code,.status{border-radius:10px}.code{margin:0 0 16px;padding:12px;background:#0a0a0a;color:#e5e5e5;font-size:12px;overflow:auto}.btn{appearance:none;border:0;padding:10px 16px;background:var(--m-accent);color:#fff;cursor:pointer}.btn:hover{filter:brightness(.95)}