:root{--ink:#0a1320;--paper:#edf2f7;--card:#fff;--muted:#64748b;--line:#dbe3ec;--mint:#5eead4;--teal:#0f766e;--blue:#1d4ed8;--shadow:0 24px 70px rgba(15,23,42,.13);font-family:Inter,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper)}*{box-sizing:border-box}body{margin:0;min-width:280px;background:radial-gradient(circle at 12% 4%,rgba(94,234,212,.2),transparent 28rem),var(--paper)}button,input{font:inherit}.topbar{height:68px;padding:0 max(18px,calc((100vw - 1180px)/2));display:flex;align-items:center;justify-content:space-between;background:rgba(10,19,32,.94);color:#fff;position:relative;z-index:5}.brand{display:flex;align-items:center;gap:15px}.brand strong{letter-spacing:.12em}.brand i{color:var(--mint);font-style:normal}.brand span{color:#94a3b8;font-size:13px}.actions{display:flex;gap:8px}.primary,.secondary,.ghost,.choice,.history-list button{border:0;border-radius:14px;cursor:pointer;transition:transform .16s ease,box-shadow .16s ease}.primary{background:linear-gradient(135deg,var(--teal),#155e75);color:#fff;padding:14px 24px;font-weight:800;box-shadow:0 12px 28px rgba(15,118,110,.25)}.secondary{background:#fff;color:var(--ink);border:1px solid var(--line);padding:13px 22px;font-weight:700}.ghost{background:rgba(255,255,255,.08);color:inherit;border:1px solid rgba(255,255,255,.15);padding:9px 13px}.primary:hover,.secondary:hover,.choice:hover{transform:translateY(-1px)}.landing{min-height:calc(100vh - 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@media(max-width:340px){.actions .ghost{padding:8px}.company-summary{grid-template-columns:1fr 1fr}.fact-grid{grid-template-columns:1fr}.choice{grid-template-columns:38px 1fr;padding:12px}.landing h1{font-size:40px}}