:root{--primary-color: #0a59f7;--primary-strong: #004edb;--primary-weak: #eaf2ff;--bg-color: #f8f9fa;--surface-color: #ffffff;--surface-soft: #fbfcfe;--surface-glass: rgba(255, 255, 255, .72);--border-color: #d7dee8;--text-main: #1d1d1f;--text-muted: #657386;--error-color: #b42318;--success-color: #087443;--space-1: 4px;--space-2: 8px;--space-3: 12px;--space-4: 16px;--radius-sm: 6px;--radius-md: 8px;--shadow-soft: 0 10px 28px rgba(15, 23, 42, .08);--safe-bottom: env(safe-area-inset-bottom, 0px);color:var(--text-main);background:var(--bg-color);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.5}*{box-sizing:border-box}body{margin:0;min-height:100svh;background:#eef3f7}button,input,select,textarea{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{min-height:44px;border:1px solid #b9c3d0;border-radius:8px;background:var(--surface-color);color:var(--text-main);padding:0 14px;cursor:pointer}button:disabled{cursor:not-allowed;opacity:.52}h1,h2,h3,p{margin-top:0}h1{margin-bottom:2px;font-size:18px;line-height:1.25}h2{font-size:18px;margin-bottom:12px}h3{font-size:15px}.muted{color:var(--text-muted)}.mobile-shell{position:relative;isolation:isolate;width:100%;max-width:768px;min-height:100svh;margin:0 auto;background:linear-gradient(#e8eef42e,#e8eef452),linear-gradient(#f8f9fa2e,#f8f9fa57),url(/app-background.jpg);background-position:center top;background-repeat:no-repeat;background-size:cover;display:flex;flex-direction:column;overflow-x:hidden}.mobile-shell.workflow{background:#f6f8fb}.mobile-shell.workflow .shell-watermark{display:none}.shell-watermark{position:absolute;right:18px;bottom:calc(100% + 6px);z-index:0;pointer-events:none;-webkit-user-select:none;user-select:none;color:#0f172a;font-family:SF Mono,Menlo,Monaco,Consolas,monospace;font-size:clamp(22px,6vw,38px);font-weight:800;letter-spacing:0;line-height:1;opacity:.055}.bottom-nav .shell-watermark{bottom:calc(100% + 6px)}.mobile-header{position:sticky;top:0;z-index:10;min-height:58px;display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:10px;padding:10px 16px;background:#fffffff5;border-bottom:1px solid var(--border-color);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.mobile-header-copy{min-width:0}.mobile-header-copy h1{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mobile-title.backend-online{color:var(--success-color)}.mobile-title.backend-offline{color:var(--error-color)}.mobile-header-copy p{margin-bottom:0;color:var(--text-muted);font-size:12px}.back-button{min-height:38px;padding:0 10px;border-color:transparent}.status-badge,.task-status{display:inline-flex;align-items:center;justify-content:center;min-height:26px;border-radius:999px;padding:3px 8px;font-size:12px;font-weight:700;white-space:nowrap}.status-badge.local,.task-status.local{color:#087443;background:#e8f8ef;border:1px solid #bfe8cf}.status-badge.backend,.task-status.backend{color:#174f9f;background:var(--primary-weak);border:1px solid #c8ddfb}.status-badge.neutral,.task-status.neutral{color:#475569;background:#eef2f7;border:1px solid #d7dee8}.task-status.blocked{color:#8a4b00;background:#fff7e6;border:1px solid #f6d58f}.status-badge.error{color:var(--error-color);background:#fff1f0;border:1px solid #ffccc7}.mobile-header .status-badge{justify-self:end;max-width:86px;overflow:hidden;text-overflow:ellipsis}.home-logo{width:clamp(92px,24vw,128px);height:34px;object-fit:contain;object-position:left center}.mobile-shell.home .mobile-header{min-height:106px;grid-template-columns:1fr;justify-items:center;align-content:center;gap:4px;padding:12px 24px 14px}.mobile-shell.home .home-logo{justify-self:center;width:clamp(104px,28vw,142px);height:34px;object-position:center}.mobile-shell.home .mobile-header-copy{width:100%;text-align:center}.mobile-shell.home .mobile-header-copy h1{margin-bottom:0;overflow:visible;color:#0f172a;font-family:KaiTi,STKaiti,Kaiti SC,serif;font-size:clamp(24px,6vw,32px);font-weight:800;line-height:1.12;text-align:center;text-overflow:clip;white-space:nowrap}.mobile-shell.home .mobile-title.backend-online{color:var(--success-color)}.mobile-shell.home .mobile-title.backend-offline{color:var(--error-color)}.mobile-content{position:relative;z-index:1;flex:1;min-height:0;padding:14px 14px calc(86px + var(--safe-bottom))}.workflow .mobile-content{padding-bottom:calc(96px + var(--safe-bottom))}.bottom-nav{position:sticky;bottom:0;z-index:12;display:grid;grid-template-columns:repeat(2,1fr);gap:8px;padding:8px 14px calc(8px + var(--safe-bottom));background:#fffffff5;border-top:1px solid var(--border-color);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);overflow:visible}.bottom-nav button{position:relative;z-index:1;border-color:transparent;color:var(--text-muted);font-weight:700}.bottom-nav 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