:root{--color-bg:#fff;--color-surface:#fafafa;--color-border:#ececec;--color-border-strong:#d4d4d4;--color-text-primary:#111;--color-text-secondary:#6f6f6f;--color-text-tertiary:#9f9f9f;--color-primary:#2563eb;--color-primary-hover:#1d4ed8;--color-primary-light:#eff6ff;--color-primary-muted:#dbeafe;--color-success:#16a34a;--color-success-light:#f0fdf4;--color-warning:#d97706;--color-warning-light:#fffbeb;--color-error:#dc2626;--color-error-light:#fef2f2;--color-white:#fff;--shadow-xs:0 1px 2px #0000000a;--shadow-sm:0 1px 3px #0000000f, 0 1px 2px #0000000a;--shadow-md:0 4px 12px #00000012, 0 2px 4px #0000000a;--shadow-lg:0 10px 24px #00000014, 0 4px 8px #0000000a;--shadow-xl:0 20px 40px #0000001a, 0 8px 16px #0000000f;--radius-xs:4px;--radius-sm:6px;--radius-md:10px;--radius-lg:14px;--radius-xl:20px;--radius-full:9999px;--font-sans:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono:"SF Mono", "Fira Code", monospace;--text-xs:11px;--text-sm:13px;--text-base:15px;--text-md:16px;--text-lg:18px;--text-xl:20px;--text-2xl:24px;--text-3xl:30px;--text-4xl:36px;--text-5xl:48px;--leading-tight:1.25;--leading-snug:1.35;--leading-normal:1.5;--leading-relaxed:1.65;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:20px;--space-6:24px;--space-8:32px;--space-10:40px;--space-12:48px;--space-16:64px;--space-20:80px;--space-24:96px;--sidebar-width:260px;--sidebar-collapsed-width:64px;--transition-fast:.1s ease;--transition-base:.18s ease;--transition-slow:.28s ease;--z-base:0;--z-dropdown:100;--z-sticky:200;--z-overlay:300;--z-modal:400;--z-toast:500}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%;tab-size:4;scroll-behavior:smooth;font-size:16px}body{font-family:var(--font-sans);font-size:var(--text-base);line-height:var(--leading-normal);color:var(--color-text-primary);background-color:var(--color-bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizelegibility}img,video{max-width:100%;display:block}button,input,select,textarea{font:inherit}a{color:inherit;text-decoration:none}ul,ol{list-style:none}h1,h2,h3,h4,h5,h6{font-weight:600;line-height:var(--leading-tight);color:var(--color-text-primary)}p{line-height:var(--leading-relaxed);color:var(--color-text-secondary)}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--color-border-strong);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:#b0b0b0}:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px;border-radius:var(--radius-xs)}::selection{background:var(--color-primary-muted);color:var(--color-primary)}.sr-only{clip:rect(0, 0, 0, 0);white-space:nowrap;border-width:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.container{width:100%;max-width:1200px;padding:0 var(--space-6);margin:0 auto}.truncate{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.platform-layout{background:var(--color-bg);min-height:100vh;display:flex}.platform-main{margin-left:var(--sidebar-width);min-height:100vh;transition:margin-left var(--transition-slow);flex:1}.platform-content{padding:var(--space-8) var(--space-10);max-width:1100px}@keyframes fadeIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}@keyframes slideIn{0%{opacity:0;transform:translate(-12px)}to{opacity:1;transform:translate(0)}}@keyframes spin{to{transform:rotate(360deg)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.animate-fade-in{animation:.3s forwards fadeIn}.animate-slide-in{animation:.25s forwards slideIn}@media (max-width:1024px){.platform-main{margin-left:0}.platform-content{padding:var(--space-6) var(--space-6)}}@media (max-width:768px){.platform-content{padding:var(--space-4) var(--space-4)}}