:root{--color-primary:#4854e8;--color-primary-light:#6b75f0;--color-primary-dark:#3640c9;--color-success:#27ae60;--color-warning:#f59e0b;--color-danger:#e53e3e;--color-info:#3490dc;--bg-page:#f7f8fc;--bg-card:#fff;--bg-hover:#f2f4fb;--text-title:#2a3054;--text-body:#4a5068;--text-weak:#80869c;--text-hint:#a0a6bc;--border-color:#e4e7f2;--gradient-primary:linear-gradient(135deg,#4854e8,#626ef5);--radius-sm:6px;--radius-md:10px;--radius-lg:14px;--gap-1:4px;--gap-2:8px;--gap-3:16px;--gap-4:24px;--gap-5:32px;--gap-6:48px;--font-h1:36px;--font-h2:24px;--font-h3:18px;--font-h4:16px;--font-body:14px;--font-weak:13px;--font-hint:12px;--container-max:1280px;--shadow-card:0 1px 6px #4854e814;--shadow-card-hover:0 4px 16px #4854e81f;--module-ai:#8b5cf6;--module-finance:#3b82f6;--module-office:#10b981;--module-dev:#06b6d4}*{box-sizing:border-box;margin:0;padding:0}body,html{font-family:Inter,Microsoft YaHei,system-ui,-apple-system,sans-serif;font-size:var(--font-body);color:var(--text-body);background-color:var(--bg-page);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.6}a{color:inherit;text-decoration:none;transition:color .2s}a:hover{color:var(--color-primary)}ol,ul{list-style:none}button{cursor:pointer}button,input,select,textarea{font-family:inherit}.container{width:100%;max-width:var(--container-max);padding:0 var(--gap-3);margin:0 auto}.text-title{color:var(--text-title)}.text-weak{color:var(--text-weak)}.text-hint{color:var(--text-hint)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:var(--radius-sm)}::-webkit-scrollbar-thumb:hover{background:var(--text-hint)}