/* Extracted from the approved P1 header; scoped to the shared frontend header only. */
.unified-header{height:80px;position:relative;background:#fcfeff;border:0;box-shadow:none;z-index:100;color:#344354;font-family:Arial,"PingFang SC","Microsoft YaHei",sans-serif}
.unified-header *{box-sizing:border-box}.unified-header [hidden]{display:none!important}.unified-inner{width:91%;max-width:1680px;height:80px;margin:auto;display:flex;align-items:center;gap:24px}.unified-brand{width:177px;flex:0 0 177px}.unified-header .official-logo{display:block;width:177px;height:auto}.unified-nav{display:flex;align-items:center;gap:24px;margin-left:auto;height:100%}.unified-group{position:relative;height:100%;display:flex;align-items:center}.unified-parent{display:flex;align-items:center;position:relative;height:100%}.unified-header a{text-decoration:none}.unified-title,.unified-toggle{font:650 14px/1.4 Arial,"PingFang SC","Microsoft YaHei",sans-serif;color:#344354;white-space:nowrap;display:flex;align-items:center;gap:6px;padding:13px 0;background:none;border:0;border-radius:0;cursor:pointer}.unified-header .current>.unified-parent:after{content:"";position:absolute;height:3px;bottom:20px;left:0;right:0;background:#146cff}.unified-header .current .unified-title,.unified-header .current .unified-toggle,.unified-title:hover,.unified-toggle:hover,.unified-toggle[aria-expanded=true]{color:#146cff}.unified-chevron{width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg);margin:0 2px 3px;transition:transform .15s}.unified-toggle[aria-expanded=true] .unified-chevron{transform:rotate(225deg);margin-top:5px}.unified-toggle.arrow-only{padding:15px 6px;margin-left:1px}.unified-dropdown{position:absolute;top:100%;left:-18px;min-width:210px;padding:10px;background:#fff;border:1px solid #e5edf6;border-radius:0 0 10px 10px;box-shadow:0 12px 28px #213d641a;z-index:2}.unified-dropdown a{display:block;padding:12px 13px;font-size:14px;line-height:1.45;color:#344354;border-radius:6px;white-space:nowrap}.unified-dropdown a:hover,.unified-dropdown a[aria-current=page]{background:#eff6ff;color:#146cff}.unified-actions{display:flex;align-items:center;gap:20px;margin-left:auto}.unified-search{display:grid;place-items:center;background:white;border-radius:9px;width:38px;height:38px;box-shadow:0 2px 12px #395fa110}.unified-search img{opacity:.5}.unified-platform{display:flex;align-items:center;justify-content:center;background:#f6bc49;color:#674710;border:1px solid #f6bc49;min-height:46px;padding:0 25px;border-radius:8px;font-size:14px;font-weight:650;white-space:nowrap}.unified-platform:hover{background:#ffc95d;color:#503600}.unified-header :is(a,button):focus-visible{outline:3px solid #146cff;outline-offset:4px}.unified-menu-toggle,.unified-mobile-search{display:none}.unified-header button:active{transform:none}
@media(max-width:1200px){.unified-nav{gap:12px}.unified-inner{gap:15px}.unified-actions{gap:10px}.unified-brand{width:150px;flex-basis:150px}.unified-header .official-logo{width:150px}.unified-title,.unified-toggle{font-size:12px}.unified-platform{padding:0 14px}}
@media(max-width:1000px){.unified-menu-toggle{display:block;background:#fff;border:1px solid #dce5ef;border-radius:7px;padding:10px 12px;font-size:13px;color:#344354;cursor:pointer}.unified-nav{display:none;position:absolute;top:100%;left:0;width:100%;height:auto;max-height:calc(100dvh - 80px);overflow:auto;overscroll-behavior:contain;padding:10px 5% 24px;background:#fcfeff;border-top:1px solid #e5edf6;box-shadow:0 16px 25px #17314c20;margin:0}.unified-header.menu-open .unified-nav{display:block}.unified-group{display:block;height:auto;border-bottom:1px solid #edf1f6}.unified-parent{height:auto;min-height:49px}.unified-title,.unified-toggle{font-size:15px;padding:15px 8px}.unified-title{flex:1}.unified-toggle:not(.arrow-only){width:100%;justify-content:space-between;text-align:left}.unified-toggle.arrow-only{padding:19px 17px}.unified-header .current>.unified-parent:after{bottom:5px;width:28px;left:8px;right:auto;height:2px}.unified-dropdown{position:static;box-shadow:none;border:0;border-radius:8px;background:#f1f7ff;margin-bottom:8px;padding:5px 9px;min-width:0}.unified-dropdown a{padding:13px;font-size:14px;white-space:normal}.unified-mobile-search{display:block;padding:17px 8px;color:#344354;font-size:14px}.unified-actions{margin-left:auto}}
@media(max-width:600px){.unified-header,.unified-inner{height:70px}.unified-inner{width:92%;gap:10px}.unified-brand{width:135px;flex-basis:135px}.unified-header .official-logo{width:135px}.unified-platform{font-size:11px;padding:0 10px;min-height:37px}.unified-search{display:none}.unified-menu-toggle{font-size:12px;padding:8px}.unified-actions{gap:8px}.unified-nav{max-height:calc(100dvh - 70px)}}
@media(prefers-reduced-motion:reduce){.unified-chevron{transition:none}}