:root{color:#333;font-synthesis:none;text-rendering:optimizelegibility;-webkit-font-smoothing:antialiased;background:#fff;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif}*{box-sizing:border-box}html{min-width:320px}body{min-width:320px;min-height:100vh;margin:0}button{font:inherit}a{color:inherit;text-decoration:none}.legacy-home{background:#fff;flex-direction:column;min-height:100vh;display:flex}.legacy-header{color:#fff;background:#001529;justify-content:space-between;align-items:center;min-height:64px;padding:0 50px;display:flex;position:relative}.legacy-brand{font-size:20px;font-weight:600}.language-dropdown{align-items:center;height:40px;display:inline-flex;position:relative}.language-trigger{color:#fff;cursor:pointer;background:0 0;border:0;outline:0;align-items:center;gap:8px;height:40px;padding:0 6px;display:inline-flex}.language-trigger svg:last-child{transition:transform .16s}.language-dropdown.is-open .language-trigger svg:last-child{transform:rotate(180deg)}.language-menu{z-index:30;visibility:hidden;opacity:0;pointer-events:none;background:#fff;border:1px solid #f0f0f0;border-radius:6px;min-width:132px;padding:4px;transition:opacity .14s,transform .14s,visibility .14s;display:grid;position:absolute;top:100%;right:0;transform:translateY(-4px);box-shadow:0 6px 16px #00000014,0 3px 6px -4px #0000001f}.language-dropdown.is-open .language-menu{visibility:visible;opacity:1;pointer-events:auto;transform:translateY(0)}.language-menu button{color:#000000e0;text-align:left;white-space:nowrap;cursor:pointer;background:0 0;border:0;border-radius:4px;width:100%;padding:7px 12px}.language-menu button:hover{background:#f5f5f5;outline:0}.language-menu button:focus-visible{background:#f5f5f5;outline:0}.language-menu button.is-selected{color:#1677ff;background:#e6f4ff;font-weight:600}.legacy-content{flex:1}.welcome-panel{text-align:center;flex-direction:column;align-items:center;margin-top:80px;padding:0 20px 60px;display:flex}.not-found-panel{text-align:center;flex-direction:column;justify-content:center;align-items:center;min-height:420px;padding:48px 20px 72px;display:flex}.not-found-code{color:#1677ff;letter-spacing:-.06em;font-size:max(72px,min(14vw,128px));font-weight:700;line-height:1}.not-found-panel h1{color:#222;margin:18px 0 0;font-size:26px;line-height:1.4}.not-found-panel p{color:#666;max-width:520px;margin:12px 0 28px;font-size:15px;line-height:1.7}.legacy-robot{animation:3s ease-in-out infinite float;overflow:visible}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.welcome-panel p{color:#333;margin:16px 0 30px;font-size:18px;line-height:1.6}.legacy-actions{justify-content:center;gap:20px;display:flex}.legacy-button{color:#000000e0;background:#fff;border:1px solid #d9d9d9;border-radius:6px;justify-content:center;align-items:center;gap:7px;min-height:32px;padding:4px 15px;font-size:14px;line-height:1.5;transition:color .16s,border-color .16s,background .16s;display:inline-flex;box-shadow:0 2px #00000005}.legacy-button:hover{color:#4096ff;border-color:#4096ff}.legacy-button-primary{color:#fff;background:#1677ff;border-color:#1677ff;box-shadow:0 2px #0591ff1a}.legacy-button-primary:hover{color:#fff;background:#4096ff;border-color:#4096ff}.legacy-footer{color:#666;text-align:center;background:#fafafa;padding:20px 40px}.footer-inner{justify-content:center;align-items:center;gap:32px;max-width:1200px;display:inline-flex}.footer-copy{font-size:13px;line-height:1.6}.footer-records{justify-content:center;gap:8px;display:flex}.legacy-footer a{color:#666}.legacy-footer a:hover{color:#1890ff;text-decoration:underline}.ai-disclaimer{color:#999;margin-top:6px;font-size:12px}.business-contact{text-align:left;align-items:center;gap:16px;display:flex}.business-contact img{object-fit:contain;background:#fff;border:1px solid #d9d9d9;border-radius:4px;width:72px;height:72px;padding:3px;display:block}.business-label{margin-bottom:2px;font-size:14px;font-weight:500}.business-contact a{font-size:13px}a:focus-visible{outline-offset:3px;outline:2px solid #4096ff}.language-trigger:focus-visible{outline-offset:3px;outline:2px solid #4096ff}@media (max-width:768px){.legacy-header{padding:0 20px}.language-trigger span{display:none}.welcome-panel{margin-top:56px}.legacy-actions{flex-wrap:wrap;gap:12px}.legacy-footer{padding:20px}.footer-inner{flex-direction:column;gap:16px}.footer-records{flex-direction:column;gap:0}.business-contact{text-align:center;flex-direction:column;gap:12px}}@media (prefers-reduced-motion:reduce){.legacy-robot{animation:none}}