:root{color-scheme:light;--kf-bg:#f6f7fb;--kf-panel:#ffffff;--kf-border:#e4e7ee;--kf-text:#1c1f26;--kf-muted:#6b7280;--kf-primary:#2f6bff;--kf-danger:#d93b3b}*{box-sizing:border-box}body{margin:0;background:var(--kf-bg);color:var(--kf-text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;font-size:14px}a{color:inherit;text-decoration:none}.kf-layout{display:grid;grid-template-columns:232px 1fr;min-height:100vh}.kf-sidebar{background:var(--kf-panel);border-right:1px solid var(--kf-border);padding:20px 12px}.kf-brand{font-size:18px;font-weight:700;padding:0 8px 16px}.kf-brand small{font-size:11px;font-weight:400}.kf-brand small,.kf-nav-item{display:block;color:var(--kf-muted)}.kf-nav-item{padding:9px 12px;border-radius:8px}.kf-nav-item:hover{background:#eef2ff}.kf-nav-item.active{background:#e8efff;color:var(--kf-primary);font-weight:600}button.kf-nav-item{width:100%;text-align:left;border:0;background:none;cursor:pointer;font:inherit}.kf-session{margin-top:12px;padding-top:12px;border-top:1px solid var(--kf-border)}.kf-login-card{max-width:360px;margin:48px auto}.kf-field{display:block;margin-bottom:12px}.kf-field span{display:block;font-size:12px;color:var(--kf-muted);margin-bottom:4px}.kf-field input,.kf-field select{width:100%;padding:9px 10px;border:1px solid var(--kf-border);border-radius:8px;font:inherit;background:#fff}.kf-form{max-width:520px}.kf-checks{display:flex;flex-wrap:wrap;gap:8px 16px;padding-top:2px}.kf-check{display:inline-flex;align-items:center;gap:6px;font-size:13px}.kf-check input[type=checkbox]{width:auto;margin:0}.kf-result{margin:12px 0 0;padding:10px 12px;background:#f8fafc;border:1px solid var(--kf-border);border-radius:8px;font-family:SFMono-Regular,Consolas,Liberation Mono,monospace;font-size:12px;line-height:1.5;white-space:pre-wrap;word-break:break-word;max-height:240px;overflow:auto}.kf-btn{width:100%;padding:10px 12px;border:0;border-radius:8px;background:var(--kf-primary);color:#fff;font:inherit;font-weight:600;cursor:pointer}.kf-btn:disabled{opacity:.6;cursor:default}.kf-note{font-size:12px;line-height:1.6;color:var(--kf-muted);margin:0 0 12px}.kf-hint{border:1px solid var(--kf-border);background:#f8fafc;border-radius:8px;padding:10px 12px;margin-bottom:14px;font-size:12px}.kf-hint-title{font-weight:600;margin-bottom:6px}.kf-hint-row{display:flex;justify-content:space-between;gap:8px;margin-bottom:2px}.kf-hint-row span{color:var(--kf-muted)}.kf-hint-row code{font-family:SFMono-Regular,Consolas,Liberation Mono,monospace;color:var(--kf-text)}.kf-hint-warn{margin-top:6px;color:#b45309}.kf-main{padding:24px 28px}.kf-panel{background:var(--kf-panel);border:1px solid var(--kf-border);border-radius:12px;padding:18px 20px;margin-bottom:16px}.kf-panel h2{margin:0 0 4px;font-size:16px}.kf-panel p.kf-desc{margin:0 0 14px;color:var(--kf-muted);font-size:12px}table.kf-table{width:100%;border-collapse:collapse}table.kf-table td,table.kf-table th{text-align:left;padding:9px 10px;border-bottom:1px solid var(--kf-border);vertical-align:top}table.kf-table th{color:var(--kf-muted);font-weight:500;font-size:12px}.kf-tag{display:inline-block;padding:2px 8px;border-radius:10px;background:#eef2ff;color:var(--kf-primary);font-size:11px}.kf-tag.danger{background:#fdecec;color:var(--kf-danger)}.kf-muted{color:var(--kf-muted);font-size:12px}.kf-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));grid-gap:12px;gap:12px}.kf-stat{background:var(--kf-panel);border:1px solid var(--kf-border);border-radius:12px;padding:14px 16px}.kf-stat .value{font-size:24px;font-weight:700;margin:6px 0 2px}