:root{--bg: #e4e7ec;--bg-deep: #d8dde6;--ink: #16181d;--muted: #5a6270;--faint: #8b93a0;--line: #d8dee6;--line-strong: #b7c0cc;--surface: #f6f7f8;--surface-2: #fffcf8;--accent: #1a6278;--accent-deep: #12485a;--accent-soft: #e7f2f6;--danger: #9b3b2e;--danger-soft: #f8ebe7;--ok: #12485a;--desk: #c5ced8;--paper: #fbfaf7;--shadow-float: 0 16px 40px rgba(22, 24, 29, .08);--shadow-paper: 0 22px 48px rgba(22, 24, 29, .14), 0 1px 0 rgba(255, 255, 255, .85) inset;--sans: "IBM Plex Sans", "PingFang SC", "Microsoft YaHei", sans-serif;--mono: "IBM Plex Mono", Consolas, "Cascadia Mono", monospace;--radius: 8px;--radius-sm: 6px;--ease: cubic-bezier(.22, 1, .36, 1);--title-h: 64px;--status-h: 40px;--ctrl-h: 38px}*{box-sizing:border-box}html,body{margin:0;height:100%;min-height:100%;min-height:100dvh}body{color:var(--ink);font-family:var(--sans);font-size:13.5px;letter-spacing:.01em;background:var(--bg);overflow:hidden;-webkit-font-smoothing:antialiased}.ambient{position:fixed;top:0;right:0;bottom:0;left:0;z-index:0;pointer-events:none;overflow:hidden}.desk-wash{position:absolute;top:-20%;right:-20%;bottom:-20%;left:-20%;background:radial-gradient(ellipse 70% 50% at 12% 0%,rgba(31,107,138,.09),transparent 55%),radial-gradient(ellipse 55% 45% at 100% 100%,rgba(20,24,31,.06),transparent 50%),linear-gradient(165deg,#eef1f5 0%,var(--bg) 42%,var(--bg-deep) 100%);animation:wash 32s var(--ease) infinite alternate}.grain{position:absolute;top:0;right:0;bottom:0;left:0;opacity:.028;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' 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h1{margin:0;font-size:26px;font-weight:600;letter-spacing:-.03em;line-height:1}.product{margin:0;font-family:var(--mono);font-size:11px;font-weight:500;letter-spacing:.14em;color:var(--faint);text-transform:uppercase}.brand-promo{margin:2px 0 0;font-size:12px;font-weight:600;color:var(--accent-deep);letter-spacing:.01em;max-width:28em}.titlebar-actions{display:flex;flex-wrap:wrap;align-items:center;justify-content:flex-end;gap:8px;margin-left:auto}.btn{font:inherit;font-weight:500;font-size:14px;border:1px solid transparent;border-radius:var(--radius-sm);height:var(--ctrl-h);padding:0 16px;display:inline-flex;align-items:center;justify-content:center;gap:6px;cursor:pointer;line-height:1;transition:background .18s var(--ease),border-color .18s var(--ease),color .18s 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