:root{--bg:#f7f7f8;--card:#fff;--text:#111827;--muted:#6b7280;--line:#e5e7eb;--soft:#f3f4f6;--primary:#111827;--primary-hover:#1f2937;--good:#047857;--bad:#b91c1c;--shadow:0 18px 48px rgba(15,23,42,.08);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans TC",sans-serif;color:var(--text);background:var(--bg)}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh;background:radial-gradient(circle at top left,rgba(229,231,235,.9),transparent 32rem),var(--bg)}button,input,textarea,select{font:inherit}button{cursor:pointer}.boot-screen,.center-page{min-height:100vh;display:grid;place-items:center;padding:24px}.spinner{width:32px;height:32px;border:3px solid #e5e7eb;border-top-color:#111827;border-radius:999px;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.login-card{width:100%;max-width:430px;padding:32px;border:1px solid var(--line);border-radius:22px;background:var(--card);box-shadow:var(--shadow)}.login-card.wide{max-width:680px}.eyebrow{margin:0 0 12px;color:#64748b;font-size:13px;letter-spacing:.08em;text-transform:uppercase}h1,h2,h3,p{margin-top:0}h1{font-size:28px;line-height:1.25}h2{font-size:20px}h3{font-size:17px;margin-top:24px}.muted{color:var(--muted);line-height:1.7}.hint{margin:16px 0 0;text-align:center;color:var(--muted);font-size:14px}code{background:#f3f4f6;padding:2px 6px;border-radius:6px}.primary,.secondary,.text-button{border:0;border-radius:12px;min-height:40px;padding:0 16px}.primary{background:var(--primary);color:#fff}.primary:hover{background:var(--primary-hover)}.secondary{background:#fff;color:#111827;border:1px solid #d1d5db}.secondary:hover{background:#f9fafb}.text-button{background:transparent;color:#4b5563;padding:0;min-height:auto}.full{width:100%;min-height:46px}.small{min-height:32px;padding:0 10px;font-size:14px}.layout{min-height:100vh;display:grid;grid-template-columns:260px minmax(0,1fr)}.sidebar{position:sticky;top:0;height:100vh;background:#fff;border-right:1px solid var(--line);padding:20px;display:flex;flex-direction:column;gap:20px}.brand{display:flex;align-items:center;gap:12px}.brand-mark{width:40px;height:40px;border-radius:12px;background:#111827;color:white;display:grid;place-items:center;font-weight:800}.brand span{display:block;color:var(--muted);font-size:12px;margin-top:2px}.nav-item{width:100%;text-align:left;background:transparent;border:0;border-radius:12px;padding:11px 12px;color:#374151;margin-bottom:4px}.nav-item:hover,.nav-item.active{background:#f3f4f6;color:#111827}.user-box{margin-top:auto;border:1px solid var(--line);border-radius:16px;padding:14px;background:#fafafa;overflow:hidden}.user-box strong,.user-box span{display:block}.user-box span{font-size:12px;color:var(--muted);line-height:1.5;word-break:break-all;margin:4px 0 10px}.main{min-width:0}.topbar{height:96px;background:rgba(247,247,248,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 28px;position:sticky;top:0;z-index:2}.topbar h1{font-size:24px;margin-bottom:6px}.topbar p{margin:0;color:var(--muted)}.content{padding:28px;display:grid;gap:18px}.card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px;box-shadow:0 8px 24px rgba(15,23,42,.04)}.grid{display:grid;gap:18px}.cards-3{grid-template-columns:repeat(3,minmax(0,1fr))}.stat{text-align:left}.stat span{display:block;color:var(--muted);margin-bottom:12px}.stat strong{font-size:24px}.section-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:14px}.section-head h2{margin:0}.form{display:grid;gap:14px}.field{display:grid;gap:7px}.field label{font-size:14px;color:#374151}input,textarea,select{width:100%;border:1px solid #d1d5db;background:#fff;border-radius:12px;padding:10px 12px;color:#111827}textarea{resize:vertical}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:14px}.three-col{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:14px}.table-wrap{width:100%;overflow:auto;border:1px solid var(--line);border-radius:14px}table{width:100%;border-collapse:collapse;background:#fff}th,td{text-align:left;border-bottom:1px solid var(--line);padding:12px;vertical-align:top}th{background:#f9fafb;color:#374151;font-size:13px;font-weight:700}tr:last-child td{border-bottom:0}.small-text{font-size:13px}.pill{display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:999px;background:#f9fafb;color:#374151;padding:3px 9px;font-size:12px;white-space:nowrap}.actions{text-align:right}.button-row{display:flex;gap:10px;flex-wrap:wrap;margin:16px 0}.meta-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:16px 0}.meta-grid div{border:1px solid var(--line);border-radius:14px;background:#fafafa;padding:12px;color:var(--muted);font-size:13px}.meta-grid strong{display:block;color:#111827;margin-top:4px;word-break:break-word}.list{display:grid;gap:10px}.list-item{border:1px solid var(--line);border-radius:14px;padding:12px 14px;display:flex;align-items:center;justify-content:space-between;gap:12px;background:#fff}.list-item p{margin:4px 0 0;color:var(--muted);font-size:13px}.message-list{display:grid;gap:12px}.message{border:1px solid var(--line);border-radius:16px;padding:14px;background:#fff}.message-head{display:flex;justify-content:space-between;gap:10px;margin-bottom:8px}.message-head span{color:var(--muted);font-size:13px}.message p{white-space:pre-wrap;margin:0;color:#374151;line-height:1.7}.notice{border:1px solid #d1d5db;background:#f9fafb;border-radius:14px;padding:14px;color:#374151}.notice.bad{border-color:#fecaca;background:#fef2f2;color:var(--bad)}.loading{color:var(--muted);padding:16px}.toast{position:fixed;right:20px;bottom:20px;background:#111827;color:#fff;border-radius:14px;padding:12px 14px;box-shadow:var(--shadow);z-index:30;max-width:min(420px,calc(100vw - 40px))}.toast.bad{background:#991b1b}.embed-card{padding:0;overflow:hidden}.embed-card iframe{display:block}.bad{color:var(--bad)}.ok{color:var(--good)}a.secondary{display:inline-flex;align-items:center;text-decoration:none}@media (max-width:900px){.layout{grid-template-columns:1fr}.sidebar{position:relative;height:auto}.topbar{position:relative;height:auto;padding:20px}.content{padding:18px}.cards-3,.two-col,.three-col,.meta-grid{grid-template-columns:1fr}.message-head{display:block}.sidebar nav{display:grid;grid-template-columns:1fr 1fr;gap:6px}.nav-item{margin:0}.user-box{margin-top:0}}@media (max-width:520px){.sidebar nav{grid-template-columns:1fr}.login-card{padding:24px}.content{padding:14px}.card{padding:16px}}