:root{--bg:#f4f6f8;--surface:#fff;--ink:#152027;--muted:#77848c;--line:#e6eaed;--accent:#0c9b7b;--accent-dark:#08745e;--orange:#f3a44a;--red:#d45f5f;--nav:#142328;--shadow:0 16px 42px rgba(24,42,47,.08)}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:14px/1.55 Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif}button,input{font:inherit}button{cursor:pointer;border:0}h1,h2,h3,h4,p{margin:0}h1{font-size:36px;letter-spacing:-1px}h2{font-size:25px;letter-spacing:-.4px}h3{font-size:27px;letter-spacing:-.6px;margin:5px 0 8px}h4{font-size:16px}.muted{color:var(--muted)}.hidden{display:none!important}.eyebrow{font-size:10px;letter-spacing:1.8px;font-weight:700;color:#91a0a7}.eyebrow.accent{color:var(--accent)}.brand-mark{height:42px;width:42px;background:#20b391;color:#fff;border-radius:12px;display:grid;place-items:center;font-weight:800;letter-spacing:-1px;box-shadow:0 8px 18px rgba(32,179,145,.25)}.brand-mark.small{height:33px;width:33px;border-radius:9px;font-size:12px}.login-shell{min-height:100vh;display:grid;place-items:center;background:#122226 radial-gradient(circle at 76% 18%,rgba(33,170,140,.15),transparent 32%)}.login-panel{width:390px;padding:43px;background:#fff;box-shadow:0 24px 70px rgba(0,0,0,.22);border-radius:17px}.login-panel .brand-mark{margin-bottom:27px}.login-panel h1{margin-top:5px}.login-panel form{margin-top:30px}.login-panel label{display:block;font-size:12px;color:#59666c;font-weight:600;margin-bottom:16px}.login-panel input{display:block;width:100%;border:1px solid var(--line);border-radius:9px;padding:12px 13px;margin-top:7px;outline:0;color:var(--ink)}.login-panel input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(12,155,123,.12)}.primary{background:var(--accent);color:#fff;padding:11px 17px;border-radius:8px;font-weight:700;transition:.2s}.primary:hover{background:var(--accent-dark);transform:translateY(-1px)}.primary.wide{width:100%;margin-top:8px;display:flex;justify-content:space-between}.form-error{color:var(--red);font-size:12px;min-height:20px;margin-top:12px}.app-shell{display:flex;min-height:100vh}.sidebar{width:238px;background:var(--nav);color:#dbe7e7;display:flex;flex-direction:column;padding:25px 16px 17px}.side-brand{display:flex;align-items:center;gap:10px;padding:0 10px 35px}.side-brand b{display:block;color:#fff;font-size:15px}.side-brand small{display:block;font-size:8px;letter-spacing:1.6px;color:#7e989b;margin-top:2px}.nav-item{display:flex;align-items:center;gap:13px;width:100%;color:#91a9ab;background:transparent;padding:12px 14px;border-radius:8px;text-align:left;margin-bottom:5px}.nav-item:hover,.nav-item.active{background:rgba(255,255,255,.09);color:#fff}.nav-item.active{box-shadow:inset 3px 0 var(--accent)}.nav-icon{font-size:18px;width:18px;text-align:center;color:#7dcbbb}.side-footer{margin-top:auto;padding:14px 9px 0;border-top:1px solid rgba(255,255,255,.1);font-size:11px;color:#87a0a2;display:flex;align-items:center;gap:7px}.side-footer button{margin-left:auto;color:#8ca7a8;background:transparent;font-size:18px}.server-dot{height:7px;width:7px;border-radius:50%;background:#36c99e;box-shadow:0 0 0 4px rgba(54,201,158,.12)}.main{flex:1;min-width:0}.topbar{height:89px;background:#fff;border-bottom:1px solid var(--line);padding:18px 42px;display:flex;align-items:center;justify-content:space-between}.breadcrumb{font-size:10px;letter-spacing:1.2px;color:#9aa7ab}.breadcrumb b{color:var(--accent)}.top-actions{display:flex;align-items:center;gap:19px}.live-pill{font-size:10px;letter-spacing:1px;color:var(--accent);font-weight:800}.live-pill i{display:inline-block;height:6px;width:6px;background:var(--accent);border-radius:50%;margin-right:5px;box-shadow:0 0 0 4px rgba(12,155,123,.13)}.user-chip{color:#728087;font-size:12px;padding-left:17px;border-left:1px solid var(--line)}.user-chip b{color:var(--ink);margin-left:5px}.content-section{padding:38px 42px;max-width:1400px;margin:auto}.hero-row,.section-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:29px}.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px;margin-bottom:24px}.stat-card{background:var(--surface);border:1px solid var(--line);padding:20px 21px;border-radius:10px;min-height:133px}.stat-label{color:#738188;font-size:12px;font-weight:600}.stat-value{font-size:37px;font-weight:700;letter-spacing:-1.5px;margin-top:5px}.stat-foot{font-size:11px;color:#9aa6aa}.green{color:var(--accent)}.dark-stat{background:#183238;color:#fff;border-color:#183238}.dark-stat .stat-label,.dark-stat .stat-foot{color:#9ab3b4}.split-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:22px}.surface{background:#fff;border:1px solid var(--line);border-radius:10px;overflow:hidden}.surface-head{padding:19px 20px 14px;display:flex;justify-content:space-between;align-items:center}.surface-head h4{margin-bottom:3px}.text-btn{background:none;color:var(--accent);font-size:12px;font-weight:700}.table-wrap{overflow:auto}.data-table{width:100%;border-collapse:collapse;min-width:580px}.data-table th{font-size:10px;letter-spacing:.7px;text-transform:uppercase;color:#98a4a8;text-align:left;background:#fafbfb;padding:11px 20px;font-weight:700}.data-table td{border-top:1px solid #edf0f1;padding:14px 20px;color:#3e4c51;font-size:12px}.data-table td strong{color:var(--ink)}.status{display:inline-flex;align-items:center;gap:5px;font-size:11px}.status i{height:7px;width:7px;border-radius:50%;background:#b2bdc0}.status.online{color:var(--accent)}.status.online i{background:var(--accent)}.status.offline{color:#9da8ac}.event-list{padding:0 20px 12px}.event{display:flex;gap:11px;padding:13px 0;border-top:1px solid #edf0f1}.event:first-child{border-top:0}.event-dot{width:7px;height:7px;border-radius:50%;background:var(--accent);margin-top:7px;flex:none}.event-dot.warn{background:var(--orange)}.event-body{min-width:0}.event-body p{font-size:12px;color:#536167;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.event-body time{font-size:10px;color:#a2adb1}.client-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.client-card{background:#fff;border:1px solid var(--line);border-radius:10px;padding:19px}.client-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:15px}.client-avatar{height:34px;width:34px;background:#e1f4ef;color:var(--accent-dark);display:grid;place-items:center;border-radius:9px;font-weight:800}.client-name{margin-left:10px;flex:1}.client-name b{display:block}.client-name span{font-size:11px;color:#95a1a5}.client-token{background:#f6f8f8;color:#637176;border-radius:6px;padding:9px 10px;font:11px ui-monospace,monospace;word-break:break-all;margin:13px 0}.client-actions{display:flex;gap:8px}.ghost-btn,.danger-btn{border-radius:6px;padding:7px 10px;font-size:11px;font-weight:700}.ghost-btn{background:#edf8f5;color:var(--accent-dark)}.danger-btn{background:#fff0ef;color:#c76161}.empty{padding:35px 20px;text-align:center;color:#9aa6aa;font-size:12px}.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.guide-card{background:#fff;border:1px solid var(--line);border-radius:10px;padding:22px;min-height:210px}.guide-num{color:var(--accent);font:700 12px ui-monospace,monospace}.guide-card h4{margin:14px 0 8px}.guide-card p{font-size:12px;color:#78868b;min-height:58px}.guide-card code{display:block;background:#f3f6f6;border-radius:6px;color:#50686a;font:11px/1.6 ui-monospace,monospace;padding:9px;word-break:break-word}.notice{margin-top:18px;padding:15px 18px;background:#fff9eb;border:1px solid #f4e3ba;border-radius:8px;color:#856e41;font-size:12px}.notice b{margin-right:10px;color:#a37e2f}.modal{position:fixed;inset:0;background:rgba(12,28,31,.57);display:grid;place-items:center;padding:20px;z-index:10}.modal-card{background:#fff;width:480px;max-width:100%;border-radius:13px;box-shadow:var(--shadow);padding:25px}.modal-head{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:20px}.icon-btn{background:transparent;color:#91a0a4;font-size:26px;line-height:1}.modal-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.modal-form-grid label,.modal-card>form>label{font-size:11px;color:#657378;font-weight:700}.modal-card input,.modal-card select{display:block;width:100%;padding:10px 11px;border:1px solid var(--line);border-radius:7px;margin-top:6px;outline:0;background:#fff}.modal-card input:focus,.modal-card select:focus{border-color:var(--accent)}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:22px}.cancel-btn{padding:10px 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15px}.hero-row,.section-head{display:block}.hero-row .primary,.section-head .primary{margin-top:17px}.stat-grid{gap:9px}.stat-card{padding:15px}.stat-value{font-size:29px}.client-grid,.guide-grid{grid-template-columns:1fr}.login-panel{width:calc(100% - 30px);padding:30px}.user-chip{font-size:11px}}
.danger-link{color:#c76161}.traffic-value{font-size:29px}.client-meta{font-size:10px;color:#94a0a4;padding:7px 0 2px}.settings-surface{padding:24px}.settings-form{max-width:520px;display:grid;gap:14px}.settings-form label{font-size:12px;color:#657378;font-weight:700}.settings-form input{display:block;width:100%;padding:11px;border:1px solid var(--line);border-radius:7px;margin-top:6px}