*{box-sizing:border-box}html,body{height:100%}body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:#0e1a2a;color:#fff;overflow:hidden}.os{height:100vh;background:linear-gradient(135deg,#0d1929,#15517d 52%,#9dc4dc);background-size:cover;background-position:center;position:relative;user-select:none}.os.has-bg-image{background-image:var(--desktop-bg)}.os:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 70% 25%,rgba(255,255,255,.38),transparent 24%),linear-gradient(rgba(0,0,0,.10),rgba(0,0,0,.18));pointer-events:none}.topbar{height:36px;background:rgba(13,24,40,.76);backdrop-filter:blur(16px);display:flex;align-items:center;justify-content:space-between;padding:0 22px;position:relative;z-index:4;font-size:14px}.brand{font-weight:800;display:flex;align-items:center;gap:8px}.logo{display:inline-grid;place-items:center;width:24px;height:24px;border-radius:7px;background:#fff;color:#173451}.status{display:flex;gap:18px;align-items:center}.wifi{font-size:18px;display:grid;place-items:center;color:rgba(255,255,255,.86)}.desktop{position:relative;z-index:2;height:calc(100vh - 36px);padding:34px 30px 100px;display:grid;grid-template-columns:96px;grid-auto-rows:94px;grid-auto-flow:row;gap:12px;align-content:start;justify-content:start}.welcome{position:absolute;right:32px;top:42px;width:min(430px,calc(100vw - 64px));padding:22px;border:1px solid rgba(255,255,255,.30);border-radius:24px;background:rgba(255,255,255,.14);backdrop-filter:blur(18px);box-shadow:0 20px 60px rgba(0,0,0,.22);user-select:text}.welcome b{display:block;font-size:24px;margin-bottom:8px}.welcome span{line-height:1.45}.icon{width:92px;height:92px;border:1px solid transparent;border-radius:10px;background:transparent;color:#fff;text-shadow:0 2px 7px rgba(0,0,0,.8);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:7px;cursor:pointer;transition:.14s ease}.icon:hover,.icon.selected{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.22)}.icon:active{transform:scale(.97)}.ico{font-size:38px;line-height:1;filter:drop-shadow(0 8px 12px rgba(0,0,0,.25))}.icon span:last-child{font-size:13px;font-weight:800;text-align:center;line-height:1.15;max-width:90px}.select-box{display:none;position:absolute;border:1px solid rgba(86,156,255,.95);background:rgba(66,133,244,.20);z-index:8;pointer-events:none}.dock{position:fixed;left:50%;bottom:18px;transform:translateX(-50%);z-index:6;display:flex;gap:10px;padding:10px;border-radius:24px;background:rgba(20,25,35,.46);backdrop-filter:blur(18px);box-shadow:0 18px 50px rgba(0,0,0,.35)}.dock button,.dock a{border:0;border-radius:16px;background:rgba(255,255,255,.90);color:#102033;font-weight:800;padding:13px 16px;cursor:pointer;display:flex;align-items:center;gap:6px}.dock button:hover{background:#fff;transform:translateY(-2px)}.dock .start{background:#2678ff;color:#fff;font-size:20px;padding:10px 16px}.start-menu{display:none;position:fixed;left:50%;bottom:86px;transform:translateX(-50%);z-index:7;width:390px;max-width:calc(100vw - 24px);padding:18px;border-radius:24px;background:rgba(246,248,255,.92);color:#15243a;backdrop-filter:blur(20px);box-shadow:0 22px 80px rgba(0,0,0,.35)}.start-menu.open{display:block}.start-title{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}.start-title span{font-size:13px;color:#64748b}.start-menu button,.start-menu a{display:block;width:100%;padding:12px;margin-top:8px;border:0;border-radius:14px;background:#fff;color:#15243a;text-align:left;text-decoration:none;font-weight:800}.context-menu{display:none;position:fixed;z-index:20;min-width:250px;padding:8px;border-radius:14px;background:rgba(247,249,255,.96);color:#16243a;box-shadow:0 18px 55px rgba(0,0,0,.35);backdrop-filter:blur(16px)}.context-menu.open{display:block}.context-menu button{display:block;width:100%;border:0;background:transparent;color:#16243a;padding:10px 12px;border-radius:10px;text-align:left;font-weight:700;cursor:pointer}.context-menu button:hover{background:#e8eef9}.window-layer{position:fixed;inset:40px 20px 90px;pointer-events:none;z-index:5}.win{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:min(760px,92vw);max-height:72vh;overflow:hidden;border-radius:22px;background:rgba(255,255,255,.94);color:#13233a;box-shadow:0 30px 90px rgba(0,0,0,.4);pointer-events:auto;user-select:text}.win-head{height:46px;background:rgba(235,238,244,.92);display:flex;align-items:center;gap:10px;padding:0 14px;font-weight:900;user-select:none}.close{position:relative;width:22px;height:22px;border:0;border-radius:50%;background:#ff5f57;cursor:pointer;flex:0 0 auto}.close:before,.close:after{content:"";position:absolute;left:6px;right:6px;top:10px;height:2px;background:rgba(120,0,0,.72);border-radius:3px;opacity:.9}.close:before{transform:rotate(45deg)}.close:after{transform:rotate(-45deg)}.win-body{padding:24px;overflow:auto;max-height:calc(72vh - 46px);line-height:1.6}.win-body h2{margin-top:0}.action{display:inline-block;padding:12px 16px;border-radius:14px;background:#2678ff;color:#fff;text-decoration:none;font-weight:900}
@media(max-width:760px){body{overflow:hidden}.os{background:linear-gradient(160deg,#121827,#274a7a 55%,#dff7ff)}.os.has-bg-image{background-image:var(--desktop-bg)}.topbar{height:58px;border-radius:0 0 22px 22px;margin:0 10px;padding:0 18px}.brand{font-size:16px}.desktop{height:calc(100vh - 58px);padding:128px 18px 116px;grid-template-columns:repeat(4,1fr);grid-auto-rows:98px;gap:14px;justify-content:stretch}.welcome{left:18px;right:18px;top:78px;width:auto;padding:14px 16px;border-radius:22px;z-index:1}.welcome b{font-size:18px}.welcome span{font-size:13px}.icon{width:100%;height:88px;background:transparent;backdrop-filter:none;z-index:2}.icon:hover{background:rgba(255,255,255,.10)}.ico{width:58px;height:58px;border-radius:18px;background:rgba(255,255,255,.92);color:#143052;display:grid;place-items:center;text-shadow:none;box-shadow:0 12px 28px rgba(0,0,0,.25);font-size:32px}.icon span:last-child{font-size:13px}.dock{width:calc(100vw - 28px);justify-content:space-around;border-radius:28px;bottom:18px}.dock button:not(.start){font-size:22px;width:54px;height:54px;padding:0;justify-content:center}.dock button span{display:none}.dock .start{height:54px;width:54px;justify-content:center;padding:0}.win{width:calc(100vw - 20px);max-height:78vh;border-radius:24px}.window-layer{inset:66px 10px 90px}.start-menu{bottom:88px}.context-menu{display:none!important}}

/* page view */
.page-body{overflow:auto;background:#eef3fb;color:#14243a}.site-page{max-width:980px;margin:40px auto;padding:0 18px}.site-page article{background:#fff;border-radius:28px;padding:34px;box-shadow:0 18px 60px rgba(18,33,56,.12)}.site-page h1{margin-top:0}.page-back{display:inline-block;margin-bottom:18px;color:#2563eb;text-decoration:none;font-weight:800}.page-content{line-height:1.7}.page-content img{max-width:100%;height:auto;border-radius:18px}

@media(max-width:760px){
  .desktop{padding-top:172px;grid-auto-rows:104px;align-content:start;}
  .welcome{top:76px;z-index:0;max-height:88px;overflow:hidden;}
  .icon{z-index:2;}
  .dock .dock-ico{display:inline-grid!important;place-items:center;font-size:24px;line-height:1;}
  .dock button:not(.start){background:rgba(255,255,255,.92);}
  .dock button:not(.start) > span:not(.dock-ico){display:none!important;}
}