:root{font-family:Inter,"Segoe UI","Microsoft YaHei",sans-serif;color:#172b40;background:#f3f6f9;font-synthesis:none;--blue:#186bda;--line:#e2e9f0;--muted:#65778a}*{box-sizing:border-box}body{margin:0}header{height:76px;border-bottom:1px solid var(--line);background:#fff;display:flex;align-items:center;justify-content:space-between;padding:0 max(28px,calc((100vw - 1180px)/2))}.brand{font-size:25px;font-weight:700;color:var(--blue)}.brand span{font-size:13px;letter-spacing:2px;margin-left:12px;color:#213c58}.tag{font-size:12px;color:#557086;background:#eef4f9;border:1px solid #e2eaf1;padding:6px 11px;border-radius:6px}main{max-width:1180px;margin:0 auto;padding:36px 0}.intro{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px}h1{font-size:32px;letter-spacing:-1px;margin:8px 0 10px}p{line-height:1.65;font-size:14px}.intro p{color:var(--muted);margin:4px 0}.eyebrow{font-size:12px!important;letter-spacing:2px}.connection{font-size:13px;display:flex;gap:8px;align-items:center}.led{height:9px;width:9px;border-radius:50%;background:#9eacbb}.led.online{background:#0f986b;box-shadow:0 0 0 4px #e1f5eb}.steps{display:grid;grid-template-columns:repeat(3,1fr);margin-bottom:24px;background:#eaf0f7;border-radius:12px;padding:22px 28px;gap:20px}.steps>div{display:flex;align-items:center;gap:15px}.steps b{font-size:25px;color:#7390ad;font-weight:400}.steps span{font-weight:600;font-size:14px}.steps small{display:block;font-size:12px;font-weight:400;color:var(--muted);margin-top:6px}.grid{display:grid;grid-template-columns:360px 1fr;gap:22px}.card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:26px}h2{font-size:17px;margin:0 0 10px}h3{font-size:23px;margin:10px 0}.muted{color:var(--muted);font-size:12px}label{display:block;font-size:13px;font-weight:600;margin:22px 0 9px}input,select{font:inherit;font-size:13px;border:1px solid #cedae6;border-radius:7px;background:#fff;padding:12px;width:100%;color:#243e56}input:focus,select:focus{outline:2px solid #a9cafa;border-color:var(--blue)}button{font:inherit;font-size:13px;padding:11px 17px;border-radius:7px;border:1px solid #cedae6;background:#fff;color:#24425b;cursor:pointer;white-space:nowrap}button.primary{background:var(--blue);border-color:var(--blue);color:#fff}button.danger{color:#b94646;border-color:#eed4d4}button:hover:not(:disabled){filter:brightness(.94)}button:disabled{opacity:.4;cursor:not-allowed}.row,.actions{display:flex;gap:9px;margin-top:14px}.row>button:first-child{flex:1}dl{padding:10px 0;border-bottom:1px solid var(--line);margin:16px 0}dl>div{display:flex;justify-content:space-between;gap:15px;margin:12px 0;font-size:12px}dt{color:var(--muted);flex-shrink:0}dd{margin:0;overflow-wrap:anywhere;text-align:right}.note{font-size:12px;color:var(--muted);line-height:1.7}.section-head{display:flex;align-items:center;justify-content:space-between;gap:20px}.call-state{text-align:center;background:#f7fafe;border-radius:10px;padding:22px 12px;margin:18px 0 0}.wave{color:#6098dc;font-size:23px;letter-spacing:6px}.call-state p{font-size:12px;color:var(--muted);margin:0}.call label{margin-top:16px}.actions>button{flex:1}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:24px 0 12px}.stats span{display:block;font-size:11px;color:var(--muted)}.stats strong{display:block;font-size:12px;margin-top:7px;font-weight:600}audio{width:100%;height:32px;margin:7px 0 10px}.diagnostics{margin-top:22px}.diagnostics .section-head p{margin:0}.diagnostics #notice{margin-top:18px;border-radius:7px;background:#edf5ff;color:#285b8f;font-size:13px;padding:12px 15px}.diagnostics #notice.error{background:#fff1ef;color:#ae4536}#logs{list-style:none;padding:0;margin:10px 0 0;max-height:210px;overflow:auto;font:12px/1.8 Consolas,"Microsoft YaHei",monospace}#logs li{border-bottom:1px solid #f0f3f7;padding:6px 2px}#logs time{color:#8b9aab;margin-right:18px}footer{text-align:center;font-size:11px;color:#8190a0;margin:24px 0 0}@media(max-width:1240px){main{margin:0 24px}}@media(max-width:800px){main{padding-top:24px}.grid{grid-template-columns:1fr}.intro{align-items:flex-start;gap:12px}h1{font-size:26px}.steps{padding:18px 12px;gap:10px}.steps b{display:none}.card{padding:20px}.actions{flex-wrap:wrap}.actions>button{flex:1 0 40%}.stats{gap:8px}.connection{padding-top:7px}header{padding:0 24px}}@media(prefers-reduced-motion:no-preference){button{transition:filter .15s}}