*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--bg-deep:#f0f4f8;--bg:#f8fafc;--bg-card:#ffffffe6;--bg-card-solid:#fff;--bg-elevated:#fffffff2;--bg-hover:#3b82f60f;--bg-active:#3b82f61a;--border:#0000000f;--border-light:#0000001a;--border-focus:#3b82f680;--text:#0f172a;--text-2:#64748b;--text-muted:#94a3b8;--text-link:#3b82f6;--primary:#3b82f6;--primary-dark:#2563eb;--primary-light:#60a5fa;--accent:#06b6d4;--gradient:linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);--green:#10b981;--red:#ef4444;--red-soft:#ef44441a;--yellow:#f59e0b;--topbar-h:56px;--bottom-h:60px;--sidebar-w:280px;--radius:12px;--radius-sm:8px;--radius-lg:16px;--font:system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--shadow-sm:0 2px 12px #0000000f;--shadow-md:0 4px 20px #00000014;--shadow-lg:0 8px 40px #0000001f;--blur:12px}html,body,#root{height:100%}body{background:var(--bg);color:var(--text);font-family:var(--font);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-image:radial-gradient(at 50% 0,#3b82f60f 0%,#0000 60%);font-size:14px;line-height:1.5}a{color:inherit;text-decoration:none}::selection{background:#3b82f633}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:#0000001f;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#0003}.app-layout{flex-direction:column;height:100%;display:flex;position:relative}.app-topbar{height:var(--topbar-h);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--border);z-index:200;background:#ffffffe0;align-items:center;gap:12px;padding:0 20px;display:flex;position:fixed;top:0;left:0;right:0}.app-content{top:var(--topbar-h);left:0;right:0;bottom:var(--bottom-h);flex:1;position:fixed;overflow:hidden}.app-bottom-tabs{height:var(--bottom-h);-webkit-backdrop-filter:blur(16px);border-top:1px solid var(--border);z-index:200;padding-bottom:env(safe-area-inset-bottom,0);background:#ffffffeb;display:flex;position:fixed;bottom:0;left:0;right:0}@media (width<=767px){.app-topbar{padding:0 12px}.app-content{padding-bottom:0}}@media (width>=768px){.app-content{bottom:0}.app-bottom-tabs{display:none}}.page{height:100%;overflow-y:auto}.glass-card{background:var(--bg-card);-webkit-backdrop-filter:blur(var(--blur));border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}.brand-name{letter-spacing:.3px;background:var(--gradient);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:17px;font-weight:700}.topbar-brand{flex-shrink:0;align-items:center;gap:10px;display:flex}.topbar-actions{align-items:center;gap:8px;margin-left:auto;display:flex}.topbar-avatar{color:#fff;cursor:pointer;background:var(--gradient);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;width:32px;height:32px;font-size:13px;font-weight:700;transition:transform .15s,box-shadow .15s;display:flex}.topbar-avatar:hover{transform:scale(1.08);box-shadow:0 0 0 2px #3b82f659}.desktop-tabs{align-items:center;gap:2px;margin-left:20px;display:none}.dtab{border-radius:var(--radius-sm);height:32px;color:var(--text-2);cursor:pointer;white-space:nowrap;font-size:13px;font-weight:500;font-family:var(--font);background:0 0;border:none;padding:0 14px;transition:all .2s;position:relative}.dtab:hover{background:var(--bg-hover);color:var(--text)}.dtab.active{background:var(--bg-active);color:var(--text);font-weight:600}.dtab.active:after{content:"";background:var(--gradient);border-radius:2px;width:18px;height:2px;position:absolute;bottom:0;left:50%;transform:translate(-50%)}.dtab-dot{background:var(--red);vertical-align:middle;border-radius:50%;width:6px;height:6px;margin-left:4px;display:inline-block}@media (width>=768px){.desktop-tabs{display:flex}}.btab{color:var(--text-muted);cursor:pointer;font-size:10px;font-family:var(--font);background:0 0;border:none;flex-direction:column;flex:1;justify-content:center;align-items:center;gap:3px;transition:color .2s;display:flex;position:relative}.btab-icon{justify-content:center;align-items:center;width:24px;height:24px;display:flex}.btab-icon svg{width:22px;height:22px}.btab-label{font-weight:500}.btab.active{color:var(--primary)}.btab-dot{background:var(--red);border:2px solid var(--bg);border-radius:50%;width:8px;height:8px;position:absolute;top:8px;right:calc(50% - 16px)}.btn{border-radius:var(--radius-sm);cursor:pointer;white-space:nowrap;height:36px;font-size:13px;font-weight:600;font-family:var(--font);letter-spacing:.2px;border:none;justify-content:center;align-items:center;padding:0 18px;transition:all .2s;display:inline-flex}.btn-primary{background:var(--gradient);color:#fff;box-shadow:0 2px 8px #3b82f640}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 4px 16px #3b82f659}.btn-primary:active{transform:translateY(0)}.btn-primary:disabled{opacity:.5;cursor:not-allowed;box-shadow:none;transform:none}.btn-ghost{color:var(--text-2);border:1px solid var(--border-light);background:0 0}.btn-ghost:hover{color:var(--text);background:var(--bg-hover);border-color:#0003}.btn-outline{color:var(--primary);background:0 0;border:1px solid #3b82f666}.btn-outline:hover{border-color:var(--primary);background:#3b82f614}.btn-danger{background:var(--red);color:#fff}.btn-danger:hover{background:#dc2626}.btn-block{width:100%}.btn-lg{border-radius:var(--radius);height:44px;padding:0 28px;font-size:15px}.btn-sm{height:30px;padding:0 12px;font-size:12px}.btn-icon{cursor:pointer;width:32px;height:32px;color:var(--text-2);border-radius:var(--radius-sm);background:0 0;border:none;flex-shrink:0;justify-content:center;align-items:center;transition:all .15s;display:flex}.btn-icon:hover{background:var(--bg-hover);color:var(--text)}.input{background:var(--bg-card-solid);border:1px solid var(--border-light);border-radius:var(--radius-sm);width:100%;height:40px;font-size:14px;font-family:var(--font);color:var(--text);outline:none;padding:0 12px;transition:border-color .2s,box-shadow .2s}.input:focus{border-color:var(--border-focus);box-shadow:0 0 0 3px #3b82f61a}.input::placeholder{color:var(--text-muted)}textarea.input{resize:vertical;height:auto;padding:10px 12px}.toast-container{bottom:calc(var(--bottom-h) + 12px);z-index:999;flex-direction:column;gap:8px;display:flex;position:fixed;right:16px}@media (width>=768px){.toast-container{bottom:20px}}.toast{border-radius:var(--radius);background:var(--bg-card-solid);border:1px solid var(--border-light);box-shadow:var(--shadow-md);align-items:center;gap:10px;max-width:320px;padding:12px 16px;font-size:13px;font-weight:500;animation:.2s toast-in;display:flex}@keyframes toast-in{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.toast-success{border-left:3px solid var(--green)}.toast-error{border-left:3px solid var(--red)}.toast-warning{border-left:3px solid var(--yellow)}.toast-info{border-left:3px solid var(--primary)}.offline-banner{top:var(--topbar-h);background:var(--yellow);color:#fff;text-align:center;z-index:150;padding:4px 0;font-size:12px;font-weight:600;position:fixed;left:0;right:0}@media (width<=767px){.landing-nav-links{display:none}.landing-hero-title{font-size:clamp(26px,8vw,40px)!important}.landing-features-grid{grid-template-columns:1fr!important}.landing-code-block{overflow-x:auto}.landing-stats{flex-wrap:wrap;gap:24px!important}.landing-stats>div{min-width:calc(33% - 16px)}.auth-card{min-height:100%;border-left:none!important;border-right:none!important;border-radius:0!important;width:100%!important;max-width:100%!important;padding:24px 16px!important}.auth-page{align-items:flex-start!important;padding:0!important}}.avatar{color:#fff;background:var(--gradient);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:13px;font-weight:700;display:flex}.avatar-sm{width:32px;height:32px;font-size:12px}.avatar-md{width:40px;height:40px;font-size:14px}.avatar-lg{width:56px;height:56px;font-size:18px}