:root{--green: #128c7e;--green-light: #25d366;--bg: #f0f2f5;--card: #ffffff;--text: #111b21;--muted: #667781;--border: #e9edef;--danger: #d92d20;--amber: #b54708}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}.center{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}.error{color:var(--danger)}.login-card{background:var(--card);border-radius:16px;padding:48px 40px;text-align:center;box-shadow:0 8px 30px #00000014;max-width:380px}.login-card .logo{font-size:56px}.login-card h1{margin:16px 0 4px;font-size:24px}.login-card p{color:var(--muted);margin-bottom:28px}.topbar{background:var(--green);color:#fff;padding:14px 24px;display:flex;align-items:center;justify-content:space-between}.topbar h1{font-size:18px;font-weight:600}.topbar .user{font-size:13px;opacity:.9;display:flex;gap:12px;align-items:center}.container{max-width:760px;margin:0 auto;padding:24px}.usage{display:flex;justify-content:space-between;align-items:center;background:var(--card);border:1px solid var(--border);border-radius:12px;padding:16px 20px;margin-bottom:20px}.usage .count{font-size:22px;font-weight:700}.usage .label{color:var(--muted);font-size:13px}.btn{border:none;border-radius:8px;padding:9px 16px;font-size:14px;font-weight:600;cursor:pointer;transition:opacity .15s}.btn:disabled{opacity:.5;cursor:not-allowed}.btn:hover:not(:disabled){opacity:.88}.btn-primary{background:var(--green-light);color:#073d33}.btn-light{background:var(--bg);color:var(--text)}.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.5)}.btn-danger{background:transparent;color:var(--danger)}.btn-sm{padding:6px 12px;font-size:13px}.conn{background:var(--card);border:1px solid var(--border);border-radius:12px;margin-bottom:14px;overflow:hidden}.conn-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;cursor:pointer}.conn-id{font-family:ui-monospace,Menlo,monospace;font-size:13px}.conn-phone{color:var(--muted);font-size:13px}.conn-body{padding:0 20px 20px;border-top:1px solid var(--border)}.badge{font-size:12px;font-weight:600;padding:3px 10px;border-radius:20px}.badge-ok{background:#d1fadf;color:#027a48}.badge-wait{background:#fef0c7;color:var(--amber)}.badge-off{background:#eaecf0;color:var(--muted)}.section{margin-top:18px}.section h3{font-size:13px;text-transform:uppercase;color:var(--muted);margin-bottom:8px}.qr{width:220px;height:220px;display:block;margin:8px auto;border:1px solid var(--border);border-radius:8px}.hint{color:var(--muted);font-size:13px;text-align:center}.field{display:flex;gap:8px;margin-top:6px}.input{flex:1;border:1px solid var(--border);border-radius:8px;padding:9px 12px;font-size:14px}.code-box{font-family:ui-monospace,Menlo,monospace;background:#1d2939;color:#d1fadf;padding:12px 14px;border-radius:8px;font-size:13px;word-break:break-all;margin-top:6px}.row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.spacer{flex:1}.banner{background:#fffaeb;border:1px solid #fedf89;color:var(--amber);padding:12px 14px;border-radius:8px;font-size:13px;margin-bottom:16px}.docs h2{font-size:20px;margin:28px 0 6px}.docs h2:first-child{margin-top:4px}.docs h3{font-size:14px;margin:20px 0 6px;display:flex;gap:8px;align-items:center}.docs p{color:#3b4a54;font-size:14px;line-height:1.6;margin:8px 0}.docs ul{margin:8px 0 8px 20px;color:#3b4a54;font-size:14px;line-height:1.7}.docs code{font-family:ui-monospace,Menlo,monospace;background:#eef1f3;padding:1px 5px;border-radius:4px;font-size:13px}.docs pre{background:#1d2939;color:#e4e7ec;padding:14px 16px;border-radius:8px;font-size:12.5px;line-height:1.5;overflow-x:auto;margin:8px 0;font-family:ui-monospace,Menlo,monospace}.docs pre .k{color:#7cd4fd}.method{font-family:ui-monospace,Menlo,monospace;font-size:11px;font-weight:700;padding:2px 7px;border-radius:4px;background:#d1fadf;color:#027a48}.method.get{background:#d1e9ff;color:#175cd3}.docs table{width:100%;border-collapse:collapse;margin:10px 0;font-size:13px}.docs th,.docs td{text-align:left;padding:7px 10px;border-bottom:1px solid var(--border)}.docs th{color:var(--muted);font-weight:600;font-size:12px}.docs td code{font-size:12px}.docs .card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:18px 20px;margin-bottom:16px}