:root{--blue:#1769ff;--blue2:#4d8dff;--ink:#182230;--muted:#718096;--line:#e7ecf3;--bg:#f4f7fb;--card:#fff;--green:#16a34a;--orange:#d97706;--red:#dc2626}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:radial-gradient(circle at 85% 0,#eaf2ff 0,transparent 28%),var(--bg)}button,input,select,textarea{font:inherit}button{cursor:pointer}.hidden{display:none!important}.topbar{height:70px;background:rgba(255,255,255,.94);backdrop-filter:blur(16px);border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 max(18px,calc((100vw - 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