*,*::before,*::after{box-sizing:border-box}html{font-family:var(--sidonn-font-sans);scroll-behavior:smooth;max-width:100%;-webkit-text-size-adjust:100%;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{margin:0;padding:0;max-width:100%;background-color:#F8FAFC;color:#1E293B;line-height:1.6;overflow-x:hidden}:root{--sidonn-font-sans:system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--sidonn-red:#C22325;--sidonn-red-dark:#A31D1F;--sidonn-red-light:#FEF2F2;--sidonn-dark:#15191E;--sidonn-dark-surface:#20242A;--sidonn-gray-border:#E2E8F0;--sidonn-text-main:#1E293B;--sidonn-text-muted:#64748B}html:lang(zh),html:lang(zh-CN),html:lang(zh-Hans){--sidonn-font-sans:"Microsoft YaHei", "PingFang SC", "Noto Sans SC", system-ui, sans-serif}.sidonn-header,.sidonn-header__inner,.sidonn-desktop-nav,.sidonn-nav-list{overflow:visible!important}.sidonn-nav-list{display:flex;align-items:center;list-style:none;padding:0;margin:0}.sidonn-dropdown-parent{position:relative}.sidonn-dropdown-parent>a{display:flex;align-items:center;gap:7px}.sidonn-dropdown-arrow{display:inline-block;width:7px;height:7px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:translateY(-2px) rotate(45deg);transition:transform .2s ease}.sidonn-dropdown-parent:hover .sidonn-dropdown-arrow,.sidonn-dropdown-parent:focus-within .sidonn-dropdown-arrow{transform:translateY(2px) rotate(225deg)}.sidonn-dropdown-menu{position:absolute!important;top:calc(100% + 18px);left:50%;transform:translate(-50%,10px);display:block!important;width:max-content;min-width:310px;margin:0;padding:10px;list-style:none;background:#fff;border:1px solid rgb(0 0 0 / .06);border-radius:12px;box-shadow:0 20px 50px rgb(0 0 0 / .14);opacity:0;visibility:hidden;pointer-events:none;z-index:99999;transition:opacity .18s ease,transform .18s ease,visibility .18s ease}.sidonn-dropdown-menu::before{content:"";position:absolute;top:-20px;left:0;width:100%;height:20px}.sidonn-dropdown-parent:hover>.sidonn-dropdown-menu,.sidonn-dropdown-parent:focus-within>.sidonn-dropdown-menu{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0)}.sidonn-dropdown-menu>li{display:block!important;width:100%;margin:0!important;padding:0!important}.sidonn-dropdown-menu>li>a{display:block;padding:11px 14px;color:#30343b;font-size:15px;font-weight:500;line-height:1.4;text-decoration:none;white-space:nowrap;border-radius:7px;transition:color .15s ease,background-color .15s ease}.sidonn-dropdown-menu>li>a:hover,.sidonn-dropdown-menu>li>a:focus{color:#c92329;background:#f5f6f7}.sidonn-dropdown-menu__all{margin-top:7px!important;padding-top:7px!important;border-top:1px solid #ececec}.sidonn-dropdown-menu__all>a{color:#c92329!important;font-weight:700!important}.sidonn-social{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:20px}.sidonn-social a{width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;box-sizing:border-box;color:#fff;background:#202832;border:1px solid rgb(255 255 255 / .15);border-radius:8px;text-decoration:none;transition:background-color .2s ease,border-color .2s ease,color .2s ease,transform .2s ease}.sidonn-social a svg{width:16px;height:16px;display:block;fill:currentColor}.sidonn-social a:hover,.sidonn-social a:focus-visible{background:#ef3124;border-color:#ef3124;color:#fff;transform:translateY(-2px)}.sidonn-social .social-about{width:auto;min-width:36px;padding:0 9px}.sidonn-social .social-about span{font-size:9px;line-height:1;font-weight:700;color:inherit;white-space:nowrap}@media (max-width:767px){.sidonn-social{margin-top:16px;gap:8px}.sidonn-social a{width:34px;height:34px;border-radius:50%}.sidonn-social .social-about{width:34px;min-width:34px;padding:0}}