:root{--bg:#f5f7fb;--card:#fff;--text:#182238;--muted:#77839a;--line:#e5eaf2;--blue:#4f7cff;--green:#16b77b;--red:#ef6470;font-family:Inter,"Microsoft YaHei",system-ui,sans-serif;color:var(--text);background:var(--bg)}*{box-sizing:border-box}body{margin:0}button,input{font:inherit}.topbar{height:70px;padding:0 max(24px,5vw);display:flex;align-items:center;justify-content:space-between;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}.logo{display:flex;align-items:center;gap:10px;font-weight:750;color:var(--text);text-decoration:none}.logo span,.brand-mark{width:36px;height:36px;display:grid;place-items:center;border-radius:11px;background:linear-gradient(135deg,#6a8dff,#385fe0);color:#fff;box-shadow:0 7px 18px #4f7cff45}.inline{display:inline}.link-button{border:0;background:none;color:var(--blue);cursor:pointer;margin-left:18px}.container{width:min(1400px,92vw);margin:auto;padding:42px 0 60px}.hero{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:28px}.hero h1{font-size:32px;margin:5px 0 7px}.eyebrow{font-size:12px;letter-spacing:2px;color:var(--blue);font-weight:800;margin:0}.muted{color:var(--muted)}.small{font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.button,.soft-button{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:10px;padding:10px 15px;text-decoration:none;cursor:pointer;font-weight:650}.button{color:#fff;background:linear-gradient(135deg,#5c84ff,#315ee7);box-shadow:0 6px 14px #4f7cff2f}.soft-button{color:#4969b9;background:#edf2ff}.device-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(330px,1fr));gap:20px}.device-card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:22px;box-shadow:0 8px 30px #21345c0a}.card-head,.card-actions,.toolbar{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap}.device-icon{width:42px;height:42px;display:grid;place-items:center;border-radius:12px;background:#eef3ff;color:var(--blue)}.badge{display:flex;align-items:center;gap:6px;padding:6px 10px;border-radius:99px;font-size:12px;font-weight:700}.badge i{width:7px;height:7px;border-radius:50%;background:currentColor}.online{color:var(--green);background:#e9faf4}.offline{color:var(--red);background:#fff0f1}.device-card h2{margin:18px 0 4px}.stats{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-radius:12px;margin:20px 0}.stats div{display:grid;text-align:center;padding:12px;border-right:1px solid var(--line)}.stats div:last-child{border:0}.stats span,.last-seen{font-size:12px;color:var(--muted);margin-top:4px}.last-seen{margin-bottom:18px}.login-page{min-height:100vh;display:grid;place-items:center;padding:20px;background:radial-gradient(circle at 50% 0,#e7eeff,transparent 46%)}.login-card{width:min(420px,94vw);background:#fff;padding:36px;border:1px solid var(--line);border-radius:22px;box-shadow:0 20px 60px #26427518}.brand-mark{margin-bottom:25px}.login-card h1{margin:0 0 6px}.login-card label{display:grid;gap:7px;margin:20px 0 0;font-size:14px;font-weight:650}.login-card input,.field input{border:1px solid #dce3ef;border-radius:10px;padding:12px;outline:none}.wide{width:100%;margin-top:24px}.alert{padding:11px;background:#fff0f1;color:#c74450;border-radius:10px;margin-top:18px}.timeline{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px}.capture{background:#fff;border:1px solid var(--line);border-radius:15px;overflow:hidden}.capture img{display:block;width:100%;aspect-ratio:16/9;object-fit:cover;background:#e9edf5}.capture div{display:grid;gap:5px;padding:13px}.capture time{font-weight:700}.capture span{font-size:12px;color:var(--muted)}.delete-button{justify-self:start;border:0;background:#fff0f1;color:#d64e5a;border-radius:8px;padding:7px 10px;cursor:pointer}.empty{grid-column:1/-1;text-align:center;background:#fff;border:1px dashed #ccd5e5;border-radius:18px;padding:60px;color:var(--muted)}.pagination{display:flex;justify-content:center;gap:20px;margin:30px}.pagination a{color:var(--blue)}.settings-wrap{width:min(680px,92vw);margin:45px auto}.settings-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:30px;box-shadow:0 15px 50px #263e6b0c}.setting-group{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:24px 0;border-top:1px solid var(--line)}.setting-group h2{font-size:17px;margin:0 0 5px}.setting-group p{color:var(--muted);font-size:13px;margin:0}.field{display:grid;gap:8px;margin:0 0 24px;font-size:14px;font-weight:650}.switch{position:relative;flex:none;width:52px;height:30px}.switch input{opacity:0;width:0;height:0}.switch span{position:absolute;inset:0;background:#ccd3df;border-radius:30px;cursor:pointer;transition:.2s}.switch span:before{content:"";position:absolute;width:24px;height:24px;left:3px;top:3px;background:#fff;border-radius:50%;box-shadow:0 2px 5px #0002;transition:.2s}.switch input:checked+span{background:#34c759}.switch input:checked+span:before{transform:translateX(22px)}.success-note{background:#e9faf4;color:#14805a;padding:11px;border-radius:10px;margin:18px 0}@media(max-width:700px){.hero{align-items:flex-start;flex-direction:column}.device-grid{grid-template-columns:1fr}.container{padding-top:28px}.topbar{padding:0 18px}.toolbar{align-items:stretch}}