:root{--bg:#f4f7fb;--panel:#fff;--ink:#172033;--muted:#6b7280;--blue:#2563eb;--line:#e5e7eb;--green:#059669;--red:#dc2626}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.6 system-ui,-apple-system,"Microsoft YaHei",sans-serif}header{min-height:64px;background:#111827;color:#fff;display:flex;align-items:center;padding:10px 5%;gap:30px}.brand{font-weight:800;font-size:18px}nav{display:flex;gap:5px;flex-wrap:wrap}nav a{color:#d1d5db;text-decoration:none;padding:9px 11px;border-radius:8px}nav a:hover{background:#263247;color:#fff}main{max-width:1180px;margin:28px auto;padding:0 18px}h1{font-size:25px;margin:0 0 18px}h2{font-size:17px;margin:0 0 14px}.page-title,.section-head{display:flex;align-items:center;justify-content:space-between;gap:18px}.section-head h2{margin-bottom:3px}.section-head .hint{margin:0}.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:20px}.cards-five{grid-template-columns:repeat(5,1fr)}.card,section{background:var(--panel);border:1px solid var(--line);border-radius:14px;box-shadow:0 3px 12px #1118270a}.card{padding:22px}.card b{display:block;font-size:30px}.card span,.hint,.summary{color:var(--muted)}section{padding:22px;margin:18px 0}.status{background:#e5e7eb;padding:6px 11px;border-radius:999px}.status.on{background:#dcfce7;color:#166534}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse}th,td{text-align:left;border-bottom:1px solid var(--line);padding:12px 10px;white-space:nowrap}th{color:var(--muted);font-weight:600}.message-preview{max-width:300px;overflow:hidden;text-overflow:ellipsis}.empty{text-align:center;color:var(--muted);padding:30px}.pill{padding:3px 8px;border-radius:999px}.pill.ok{background:#dcfce7;color:#166534}.pill.bad{background:#fee2e2;color:#991b1b}label{display:block;font-weight:650;margin-bottom:15px}input,textarea{display:block;width:100%;margin-top:6px;border:1px solid #cfd5df;border-radius:9px;padding:11px 12px;font:inherit;background:#fff}input[type=file]{background:#f8fafc}input[type=checkbox]{width:auto;margin:0}textarea{resize:vertical}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:4px 18px}.check{display:flex;gap:8px;align-items:center;font-weight:500}.check input{width:auto;margin:0}button,.button-link{border:0;border-radius:9px;padding:10px 16px;background:var(--blue);color:#fff;font-weight:700;cursor:pointer;text-decoration:none;display:inline-block}button:disabled{opacity:.55;cursor:not-allowed}.button-link.secondary{background:#475569}.danger{background:var(--red)}.link-danger{background:transparent;color:var(--red);padding:0}.summary{margin:10px 0 16px}.alert{padding:12px 15px;border-radius:9px;margin-bottom:15px}.alert.success{background:#dcfce7;color:#166534}.alert.error{background:#fee2e2;color:#991b1b}code{background:#eef2f7;padding:2px 5px;border-radius:5px}.chat-box{background:#eaf0f7;max-height:60vh;overflow:auto}.bubble-row{display:flex;margin:10px 0}.bubble-row.mine{justify-content:flex-end}.bubble{max-width:72%;padding:10px 13px;border-radius:12px;background:#fff;white-space:pre-wrap;word-break:break-word}.mine .bubble{background:#dbeafe}.bubble small{display:block;color:var(--muted);margin-top:5px;font-size:11px}@media(max-width:900px){.cards-five{grid-template-columns:repeat(2,1fr)}}@media(max-width:760px){header{height:auto;padding:14px 18px;display:block}.brand{margin-bottom:8px}nav{gap:2px}.cards{grid-template-columns:1fr 1fr}.form-grid{grid-template-columns:1fr}.page-title,.section-head{align-items:flex-start;gap:10px;flex-direction:column}.bubble{max-width:90%}}@media(max-width:420px){.cards{grid-template-columns:1fr}}