:root{--accent:#42d8ff;--glass:rgba(10,18,30,.68);--border:rgba(255,255,255,.15);--shadow:0 30px 80px rgba(0,0,0,.45);font-family:Inter,"Segoe UI","Microsoft YaHei",sans-serif;color:#eef8ff;background:#050a10}*{box-sizing:border-box}body{margin:0;overflow:hidden;background:#050a10}button,input,select{font:inherit}.hidden{display:none!important}.boot-screen,.login-screen,.desktop{position:fixed;inset:0}.boot-screen{display:grid;place-content:center;text-align:center;background:radial-gradient(circle at 50% 35%,#12324b,#04070b 55%);z-index:100}.boot-logo,.brand-mark{width:82px;height:82px;border:1px solid rgba(255,255,255,.28);border-radius:25px;display:grid;place-items:center;font-size:44px;font-weight:800;background:linear-gradient(145deg,rgba(86,225,255,.35),rgba(67,59,255,.18));box-shadow:0 0 60px rgba(66,216,255,.25)}.boot-title{font-size:24px;letter-spacing:.28em;margin:22px 0}.boot-progress{width:230px;height:4px;background:#ffffff18;border-radius:9px;overflow:hidden}.boot-progress i{display:block;height:100%;width:45%;background:#dffbff;animation:load 1.5s ease-in-out infinite}@keyframes load{0%{transform:translateX(-120%)}100%{transform:translateX(340%)}}.login-screen{display:grid;place-items:center;background:radial-gradient(circle at 20% 10%,#12395c,transparent 35%),radial-gradient(circle at 80% 90%,#34206a,transparent 35%),#03070b}.login-screen:before{content:"";position:absolute;inset:0;background-image:linear-gradient(#ffffff08 1px,transparent 1px),linear-gradient(90deg,#ffffff08 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(to bottom,transparent,black,transparent)}.login-card{position:relative;width:min(420px,calc(100vw - 32px));padding:38px;border-radius:30px;background:rgba(5,12,20,.72);border:1px solid var(--border);backdrop-filter:blur(30px);box-shadow:var(--shadow)}.login-card .brand-mark{margin:auto;width:64px;height:64px;font-size:34px;border-radius:20px}.login-card h1{text-align:center;margin:18px 0 4px;letter-spacing:.15em}.login-card>p{text-align:center;color:#99adbd;margin:0 0 30px}.login-card label{display:block;color:#b7c8d5;font-size:13px;margin:14px 0}.login-card input{display:block;width:100%;margin-top:7px;padding:14px 15px;border-radius:13px;border:1px solid #ffffff20;background:#ffffff0b;color:white;outline:none}.login-card input:focus{border-color:var(--accent);box-shadow:0 0 0 3px #42d8ff18}.login-card button{width:100%;margin-top:12px;padding:14px;border:0;border-radius:13px;background:linear-gradient(135deg,var(--accent),#7d71ff);font-weight:800;color:#041018;cursor:pointer}.login-card small{display:block;text-align:center;color:#697a88;margin-top:20px}.error{color:#ff9d9d;min-height:22px;padding-top:10px;text-align:center}.desktop{background:linear-gradient(135deg,#061421 0%,#071d30 40%,#111029 100%);background-size:cover;background-position:center}.desktop:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 55% 25%,#42d8ff12,transparent 35%),linear-gradient(120deg,transparent,#ffffff05,transparent);pointer-events:none}.menubar{height:36px;padding:0 12px;display:flex;align-items:center;justify-content:space-between;position:relative;z-index:40;background:rgba(8,13,23,.58);border-bottom:1px solid #ffffff10;backdrop-filter:blur(25px);font-size:13px}.menu-left,.menu-right{display:flex;gap:12px;align-items:center}.menu-right button,.firm-button{border:0;background:transparent;color:#eff9ff;cursor:pointer}.firm-button{font-weight:900;width:24px;height:24px;border:1px solid #ffffff30;border-radius:8px}.announcement{color:#afc4d4;max-width:45vw;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.desktop-area{position:absolute;inset:36px 0 0;padding:28px;display:grid;grid-auto-flow:column;grid-template-rows:repeat(6,90px);grid-auto-columns:92px;gap:16px;align-content:start;justify-content:start}.desktop-icon{width:92px;color:white;text-align:center;background:transparent;border:0;cursor:pointer;text-shadow:0 2px 8px #000}.desktop-icon .app-icon{margin:auto}.app-icon{width:58px;height:58px;border-radius:17px;display:grid;place-items:center;font-size:28px;background:linear-gradient(145deg,rgba(255,255,255,.28),rgba(255,255,255,.07));border:1px solid #ffffff2a;box-shadow:0 12px 28px #0005,inset 0 1px #ffffff35}.desktop-icon span{display:block;margin-top:7px;font-size:12px}.dock{position:absolute;z-index:60;bottom:14px;left:50%;transform:translateX(-50%);height:78px;padding:8px 10px;display:flex;align-items:end;gap:9px;border:1px solid #ffffff25;border-radius:24px;background:rgba(9,16,27,.46);backdrop-filter:blur(28px);box-shadow:0 20px 60px #0008}.dock button{border:0;background:transparent;padding:0;cursor:pointer;transition:.18s}.dock button:hover{transform:translateY(-10px) scale(1.1)}.dock .app-icon{width:56px;height:56px}.window-layer{position:absolute;inset:36px 0 0;pointer-events:none}.os-window{position:absolute;min-width:480px;min-height:320px;background:rgba(8,15,25,.86);border:1px solid var(--border);border-radius:18px;overflow:hidden;box-shadow:var(--shadow);backdrop-filter:blur(28px);pointer-events:auto;resize:both}.os-window.maximized{inset:8px 8px 96px!important;width:auto!important;height:auto!important;resize:none}.os-window.minimized{display:none}.window-titlebar{height:42px;display:grid;grid-template-columns:120px 1fr 120px;align-items:center;padding:0 13px;background:#ffffff08;border-bottom:1px solid #ffffff0f;cursor:move}.window-title{text-align:center;font-size:13px}.traffic{display:flex;gap:8px}.traffic button{width:12px;height:12px;border-radius:50%;border:0;cursor:pointer}.traffic .close{background:#ff6159}.traffic .min{background:#ffbd2e}.traffic .max{background:#28c940}.window-content{height:calc(100% - 42px);overflow:auto}.panel{padding:22px}.panel h2{margin-top:0}.muted{color:#91a3b3}.toolbar{display:flex;gap:10px;padding:12px;border-bottom:1px solid #ffffff10;background:#0002}.toolbar input,.toolbar select,.panel input,.panel select{background:#ffffff0b;border:1px solid #ffffff1f;color:#eef8ff;border-radius:10px;padding:10px;outline:none}.toolbar input{flex:1}.primary,.ghost,.danger{border:1px solid #ffffff22;border-radius:10px;padding:10px 14px;cursor:pointer}.primary{background:var(--accent);color:#041018;font-weight:700}.ghost{background:#ffffff0b;color:white}.danger{background:#ff555522;color:#ffb8b8}.iframe-shell{width:100%;height:100%;border:0;background:white}.app-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:20px;padding:26px}.app-tile{border:0;background:#ffffff08;color:white;border-radius:18px;padding:18px;cursor:pointer}.app-tile .app-icon{margin:auto}.app-tile span{display:block;margin-top:10px}.settings-grid{display:grid;grid-template-columns:180px 1fr;min-height:100%}.settings-nav{border-right:1px solid #ffffff12;padding:15px}.settings-nav button{display:block;width:100%;text-align:left;background:transparent;color:white;border:0;padding:12px;border-radius:10px}.settings-nav button:hover{background:#ffffff0d}.settings-main{padding:24px}.form-row{display:grid;grid-template-columns:180px 1fr;gap:16px;align-items:center;margin:14px 0}.table{width:100%;border-collapse:collapse}.table th,.table td{text-align:left;padding:11px;border-bottom:1px solid #ffffff10;font-size:13px}.badge{display:inline-block;padding:4px 8px;border-radius:99px;background:#42d8ff18;color:#7eeaff}.notice{padding:13px;border:1px solid #ffd16644;background:#ffd16612;border-radius:12px;color:#ffe1a1}.drive-empty{display:grid;place-items:center;height:100%;text-align:center;padding:50px}.context-menu{position:fixed;z-index:500;background:#0e1723;border:1px solid #ffffff20;border-radius:12px;padding:8px;box-shadow:var(--shadow)}@media(max-width:760px){.announcement{display:none}.os-window{min-width:calc(100vw - 16px);width:calc(100vw - 16px)!important;left:8px!important}.dock{max-width:calc(100vw - 18px);overflow-x:auto}.settings-grid{grid-template-columns:1fr}.settings-nav{display:none}}

/* FIRM Drive native file manager */
.drive-toolbar{flex-wrap:wrap;gap:8px}.drive-crumbs{display:flex;align-items:center;gap:4px;min-width:220px;flex:1}.drive-panel{height:calc(100% - 66px);overflow:auto}.drive-table{min-width:860px}.file-link{border:0;background:transparent;color:inherit;cursor:pointer;text-align:left;font:inherit}.file-link:hover{color:var(--accent)}.drive-actions{display:flex;gap:6px;white-space:nowrap}.button-link{display:inline-flex;align-items:center;justify-content:center;text-decoration:none}.drive-preview-overlay{position:absolute;inset:0;z-index:30;background:#020812cc;backdrop-filter:blur(10px);display:flex;align-items:center;justify-content:center;padding:18px}.drive-preview-dialog{width:96%;height:94%;background:#07111ef5;border:1px solid #ffffff22;border-radius:16px;box-shadow:0 24px 70px #000b;overflow:hidden;display:flex;flex-direction:column}.drive-preview-dialog>header{height:54px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;border-bottom:1px solid #ffffff16}.drive-preview-dialog>header>div{display:flex;gap:8px}.drive-preview-dialog>main{flex:1;min-height:0;display:flex;align-items:center;justify-content:center;overflow:auto}.drive-preview-media{max-width:100%;max-height:100%;object-fit:contain}.drive-preview-audio{width:min(720px,90%)}.drive-preview-frame{border:0;width:100%;height:100%;background:#fff}