:root{--blue:#146ef5;--blue2:#0d55bd;--ink:#172033;--muted:#7d8796;--line:#e7ebf0;--bg:#f3f6fa;--danger:#d8484e;--green:#159a68}*{box-sizing:border-box}body{margin:0;font:14px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--bg)}a{text-decoration:none;color:inherit}.auth-body{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:radial-gradient(circle at 20% 0,#d8eaff,transparent 36%),var(--bg)}.auth-card{width:min(440px,100%);padding:36px;background:#fff;border-radius:22px;box-shadow:0 18px 60px rgba(22,48,84,.12)}.brand-mark{width:68px;height:68px;margin:0 auto 20px;display:flex;align-items:center;justify-content:center;color:#fff;background:linear-gradient(135deg,var(--blue),var(--blue2));border-radius:18px;font-weight:800;font-size:20px}.auth-card h1{text-align:center;margin:0 0 8px;font-size:27px}.muted{color:var(--muted)}label{display:block;margin:18px 0 7px;font-weight:600}input,textarea,select{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:10px;background:#fbfcfd;color:var(--ink);font:inherit;outline:none}input:focus,textarea:focus,select:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(20,110,245,.1)}textarea{min-height:110px;resize:vertical}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:42px;padding:0 18px;border:0;border-radius:10px;cursor:pointer;font-weight:650;font:inherit}.btn.primary{color:#fff;background:linear-gradient(135deg,var(--blue),var(--blue2))}.btn.light{color:#315f98;background:#eaf3ff}.btn.danger{color:var(--danger);background:#fff0f0}.btn.full{width:100%;margin-top:24px}.alert{margin:18px 0;padding:13px 15px;border-radius:10px}.alert.error{color:#ad3338;background:#fff0f0}.alert.success{color:#0e7650;background:#e9f8f2}.topbar{height:68px;padding:0 28px;color:#fff;background:#102a4d;display:flex;align-items:center;justify-content:space-between}.topbar .title{font-size:20px;font-weight:750}.topbar nav{display:flex;gap:10px}.topbar nav a{padding:9px 13px;border-radius:9px;color:#bed6f3}.topbar nav a:hover,.topbar nav a.active{color:#fff;background:rgba(255,255,255,.12)}.container{width:min(1160px,calc(100% - 36px));margin:28px auto}.page-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.page-head h1{margin:0;font-size:28px}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:22px}.stat{padding:22px;background:#fff;border-radius:16px;box-shadow:0 5px 22px rgba(30,50,80,.05)}.stat strong{display:block;font-size:28px}.stat span{color:var(--muted)}.panel{background:#fff;border-radius:16px;box-shadow:0 5px 22px rgba(30,50,80,.05);overflow:hidden}.table{width:100%;border-collapse:collapse}.table th,.table td{padding:15px 16px;text-align:left;border-bottom:1px solid #edf0f3}.table th{color:var(--muted);font-size:12px;background:#fafbfc}.car-cell{display:flex;align-items:center;gap:13px;min-width:280px}.car-cell img{width:96px;height:68px;object-fit:cover;border-radius:9px;background:#e9edf2}.car-cell strong{display:block}.car-cell small{color:var(--muted)}.status{display:inline-block;padding:5px 9px;border-radius:99px;font-size:12px}.status.on{color:#08764e;background:#e7f7f0}.status.off{color:#657080;background:#eef1f4}.actions{display:flex;gap:7px;flex-wrap:wrap}.actions form{margin:0}.actions .btn{min-height:34px;padding:0 11px;font-size:12px}.form-panel{padding:26px}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 20px}.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:0 20px}.switches{display:flex;gap:28px;margin:22px 0}.switches label{display:flex;align-items:center;gap:8px;margin:0}.switches input{width:auto}.image-list{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.image-item{position:relative}.image-item img{width:100%;height:130px;object-fit:cover;border-radius:10px}.image-item label{margin:5px 0;font-weight:400}.image-item input{width:auto}.help{margin-top:6px;color:var(--muted);font-size:12px}.empty{padding:70px;text-align:center;color:var(--muted)}@media(max-width:760px){.topbar{height:auto;padding:16px;align-items:flex-start;gap:12px}.topbar nav{flex-wrap:wrap}.container{width:calc(100% - 24px);margin:18px auto}.stats,.grid2,.grid3{grid-template-columns:1fr}.table-wrap{overflow-x:auto}.page-head{align-items:flex-start;gap:12px}.image-list{grid-template-columns:repeat(2,1fr)}}