/* ===== Critical CSS — Above-the-fold content ===== */
    @font-face{font-family:'Outfit';src:url('/_shared/fonts/Outfit-Regular.ttf') format('truetype');font-weight:400;font-display:swap}
    @font-face{font-family:'Outfit';src:url('/_shared/fonts/Outfit-Bold.ttf') format('truetype');font-weight:700;font-display:swap}
    @font-face{font-family:'JetBrainsMono';src:url('/_shared/fonts/JetBrainsMono-Regular.ttf') format('truetype');font-weight:400;font-display:swap}
    @font-face{font-family:'JetBrainsMono';src:url('/_shared/fonts/JetBrainsMono-Bold.ttf') format('truetype');font-weight:700;font-display:swap}
    :root{--bg:#FFFFFF;--bg2:#FFFFFF;--bg3:#F8FAFC;--ink:#0F172A;--ink-soft:#334155;--muted:#64748B;--muted2:#94A3B8;--rule:#E2E8F0;--dark:#0F172A;--accent:#0072CE;--accent-hover:#00538A;--accent-soft:#E0EEF7;--accent2:#F97316;--font:"Helvetica Neue",Arial,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;--font-mono:"Helvetica Neue",Arial,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--transition-theme:background 0.35s ease,color 0.35s ease,border-color 0.35s ease,box-shadow 0.35s ease}
    [data-theme="dark"]{--bg:#0F172A;--bg2:#0F172A;--bg3:#172033;--ink:#F1F5F9;--ink-soft:#CBD5E1;--muted:#94A3B8;--muted2:#64748B;--rule:#1E293B;--dark:#020617;--accent:#0081D7;--accent-hover:var(--accent);--accent-soft:#0C2B4A;--accent2:#fb923c}
    html,body{margin:0;padding:0;overflow-x:hidden}
    body{padding-top:152px;font-family:var(--font);background:var(--bg);color:var(--ink);font-size:14px;line-height:1.5;max-width:100vw;transition:var(--transition-theme)}
    a{color:inherit;text-decoration:none}
    button{font-family:inherit;cursor:pointer;border:0}
    input,select,textarea{font-family:inherit;font-size:14px}
    /* Announce Bar */
    .announce-bar{background:linear-gradient(135deg,var(--accent) 0%,#00538A 100%);color:var(--bg);font-size:14px;text-align:center;padding:8px 24px;position:relative;overflow:hidden;line-height:1.4}
    .announce-bar a{color:var(--bg);text-decoration:underline}.announce-bar a:hover{color:#e0e0e0}
    .announce-bar .announce-close{position:absolute;right:16px;top:50%;transform:translateY(-50%);cursor:pointer;font-size:16px;opacity:.7;background:none;border:none;color:var(--bg);padding:4px 8px;line-height:1}
    .announce-bar .announce-close:hover{opacity:1}
    .announce-bar-inner{max-width:1380px;margin:0 auto;padding-right:32px}
    [data-theme="dark"] .announce-bar{background:linear-gradient(135deg,#1a3a5c 0%,#0C2B4A 100%)}
    /* Header */
    /* 首页导航 SSR 首帧即显示（中文硬编码，无需隐藏等待 JS 整理）；
       非首页英文导航的防闪烁由 core.js _syncStaticTopbar 按需隐藏处理 */
    #site-header{position:fixed;top:0;left:0;right:0;z-index:1000}
    header.site{background:var(--bg2);border-bottom:1px solid var(--rule);box-shadow:0 2px 8px rgba(0,0,0,.03)}
    /* 语言条关键样式内联（app.css 异步加载期间也不闪现无样式文本） */
    .lang-topbar{position:fixed;top:0;left:0;right:0;z-index:9999;width:100%;background:var(--accent);border-bottom:none;padding:8px 0;overflow:hidden;display:flex;align-items:center}
    [data-theme="dark"] .lang-topbar{background:var(--accent)}
    .lang-topbar-inner{display:flex;align-items:center;gap:3px;max-width:1440px;margin:0 auto;padding:0 14px;overflow-x:auto;overscroll-behavior-x:contain;scrollbar-width:thin;-webkit-overflow-scrolling:touch;flex:1 1 auto;min-width:0}
    .lang-topbar-label{font-size:12px;margin-right:6px;line-height:1;flex-shrink:0;color:var(--bg)}
    .lang-top-btn{flex-shrink:0;display:inline-flex;align-items:center;height:26px;padding:0 8px;margin:1px 0;font-size:12px;line-height:1;font-weight:400;color:var(--bg);background:transparent;border:none;border-radius:4px;cursor:pointer;transition:background .12s,color .12s;white-space:nowrap}
    .lang-top-btn:hover{color:var(--bg);background:rgba(255,255,255,0.18);text-decoration:none}
    .lang-top-btn.lang-active{color:var(--bg);background:rgba(255,255,255,0.28)}
    .lang-topbar-member{flex-shrink:0;display:inline-flex;align-items:center;gap:2px;margin-left:auto;padding-right:14px}
    .lang-topbar-member .nav-member-link{display:inline-flex;align-items:center;padding:0 8px;font-size:12px;line-height:1;font-weight:400;color:var(--bg);text-decoration:none;cursor:pointer;background:none;border:none;white-space:nowrap}
    .lang-topbar-member .nav-member-link:hover{color:var(--bg);text-decoration:underline}
    .lang-topbar-member .nav-member-link.nav-member-cta{height:24px;padding:0 12px;background:var(--bg);color:var(--accent);border:none;border-radius:4px}
    .header-top-menu{display:inline-flex;align-items:center;gap:2px;flex-shrink:0}
    .header-top-menu a{display:inline-flex;align-items:center;padding:6px 14px;font-size:14px;font-weight:400;color:var(--ink-soft);text-decoration:none;border-radius:4px;transition:all .15s;white-space:nowrap}
    .header-top-menu a:hover,.header-top-menu a.active{color:var(--accent);background:var(--accent-soft)}
    .header-global{display:flex;align-items:center;gap:10px;flex-shrink:0;margin-left:auto}
    .header-inner{max-width:1380px;margin:0 auto;padding:14px 24px;display:grid;grid-template-columns:270px minmax(420px,1fr) auto;align-items:center;gap:18px;min-height:73px;position:relative}
    .header-left{display:contents}
    .logo{display:flex;align-items:center;gap:12px;min-width:0}
    .logo-mark{width:56px;height:56px;background:linear-gradient(135deg,var(--dark),var(--accent));border-radius:4px;display:flex;align-items:center;justify-content:center;color:var(--bg);font-weight:700;font-size:20px;flex-shrink:0}
    .logo-text{display:flex;align-items:center;gap:10px;height:50px}
    .logo-text .cn{display:none}
    .logo-text .en{font-size:16px;color:#000000;letter-spacing:.5px;line-height:1;display:flex;align-items:center;white-space:nowrap}
    .header-nav{display:flex;align-items:center;justify-content:center;gap:4px;min-width:0;flex-wrap:wrap}
    .header-nav a{padding:6px 14px;font-size:14px;font-weight:400;color:var(--ink-soft);border-radius:4px;transition:all .15s}
    .header-nav a:hover,.header-nav a.active{color:var(--accent);background:var(--accent-soft);font-weight:500}
    .header-actions{display:flex;gap:8px;align-items:center;justify-content:flex-end;flex-wrap:wrap}
    .theme-toggle{background:transparent;border:1px solid var(--rule);color:var(--ink-soft);width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:18px;cursor:pointer;transition:var(--transition-theme);flex-shrink:0}
    .theme-toggle:hover{color:var(--accent);border-color:var(--accent);background:var(--accent-soft)}
    [data-theme="dark"] .theme-toggle .icon-light{display:inline}
    [data-theme="dark"] .theme-toggle .icon-dark{display:none}
    .theme-toggle .icon-light{display:none}.theme-toggle .icon-dark{display:inline}
    .hamburger{display:none;background:none;border:none;font-size:24px;color:var(--ink);cursor:pointer;padding:4px 8px;line-height:1}
    /* Buttons */
    .btn{display:inline-flex;align-items:center;gap:6px;padding:8px 16px;border-radius:4px;font-size:13px;font-weight:500;line-height:1.25;transition:background-color .15s,border-color .15s,color .15s;cursor:pointer}
    .btn-primary{background:var(--accent);color:var(--bg);border-radius:4px;min-height:34px}
    .btn-primary:hover{background:var(--accent-hover)}
    .btn-ghost{background:transparent;color:var(--ink-soft);border:1px solid var(--rule);border-radius:4px;min-height:34px}
    .btn-ghost:hover{color:var(--accent);border-color:var(--accent)}
    /* Hero */
    .search-hero{background:linear-gradient(105deg,var(--bg3) 0%,var(--bg2) 100%);border-bottom:1px solid var(--rule);padding:56px 0 60px}
    .hero-inner{max-width:1380px;margin:0 auto;padding:0 10px;text-align:center}
    .hero-title{font-size:36px;font-weight:700;color:var(--accent);margin:0 0 12px;letter-spacing:-.5px}
.hero-title span{color:var(--accent)}
    .hero-sub{font-size:26px;color:var(--ink);margin:0 0 36px;line-height:1.5}
    .mobile-hint{display:none}
    .hero-search{max-width:80%;width:80%;margin:0 auto 12px;display:flex;align-items:stretch;background:var(--bg2);border:2px solid var(--accent);border-radius:4px 0 0 4px;box-shadow:0 18px 48px -12px rgba(0,114,206,.25);position:relative;overflow:visible}
    .hero-search input{flex:1;border:0;outline:0;padding:0 22px;font-size:20px;font-weight:600;letter-spacing:.3px;min-height:64px;border-radius:4px 0 0 4px}
    .hero-search button{padding:0 40px;background:var(--accent);color:var(--bg);font-size:17px;font-weight:600;letter-spacing:0;border-radius:0}
    .hero-search button:hover{background:var(--accent-hover)}
    .hero-search button:disabled{background:var(--muted);cursor:not-allowed;opacity:.6}
    .search-suggest{position:absolute;top:100%;left:0;right:0;padding-top:6px;background:transparent;z-index:9999;text-align:left}
    .search-suggest-inner{background:var(--bg2);border:1px solid var(--rule);border-radius:4px;overflow:hidden;box-shadow:0 8px 24px rgba(0,0,0,.1)}
    .hero-hot{max-width:820px;height:30px;margin:14px auto 0;font-size:13px;color:var(--muted);display:flex;gap:10px;align-items:center;flex-wrap:nowrap;justify-content:flex-start;white-space:nowrap;overflow:hidden}
    .hero-hot b{color:var(--ink-soft);font-weight:500}
    .hero-hot a{flex:0 0 auto;padding:4px 12px;border-radius:4px;background:rgba(255,255,255,.7);border:1px solid var(--rule)}
    .hero-hot a:hover{color:var(--accent);border-color:var(--accent);background:var(--bg2)}
    .stats-row{display:flex;justify-content:center;gap:40px;flex-wrap:wrap;margin-top:44px}
    .stat-card{text-align:center;min-width:100px;display:flex;flex-direction:column;align-items:center}
    .stat-card.wide{min-width:200px}
    .stat-num{font-size:32px;font-weight:700;color:var(--accent);font-family:var(--font-mono);white-space:nowrap;line-height:1.1}
    .stat-label{font-size:14px;color:var(--muted);margin-top:4px}
    /* Quote Banner */
    .quote-banner{max-width:1380px;margin:30px auto 24px;padding:30px 34px;border-radius:4px;background:#0F172A;color:#F1F5F9;display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center}
    .quote-copy h3{margin:0 0 8px;font-size:24px;font-weight:700;color:#F1F5F9}
    .quote-copy p{margin:0;color:#CBD5E1;font-size:14px}
    .quote-methods{display:grid;grid-template-columns:repeat(4,200px);gap:14px}
    .quote-card{min-height:92px;min-width:0;border-radius:4px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);color:#F1F5F9;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;text-align:center}
    .quote-card:hover{background:rgba(255,255,255,.13);transform:translateY(-1px)}
    .quote-card span{color:#0081D7;font-size:24px;line-height:1}
    .quote-card small{color:#CBD5E1;font-size:12px}
    .quote-card b{color:#fb923c;display:block;max-width:calc(100% - 8px);font-size:clamp(11px,1.15vw,13px);line-height:1.25;white-space:normal;word-break:break-all;padding:0 6px;box-sizing:border-box}

    /* Bottom Tab Bar */
    .bottom-tab-bar{display:none}
    /* Skeleton */
    .skeleton{background:var(--bg3);border-radius:4px}
    [data-theme="dark"] .skeleton{background:var(--ink)}
    /* Desktop-only */
    body.desktop-only{padding-top:152px!important;padding-bottom:0!important;min-width:1100px!important;overflow-x:auto!important}
    body.desktop-only .bottom-tab-bar{display:none!important}
    body.desktop-only .hamburger{display:none!important}
    body.desktop-only .mobile-hint{display:none!important}
    body.desktop-only .header-nav{display:flex!important}
    
    body.desktop-only .hero-sub{display:block!important}
    body.desktop-only .header-actions{display:flex!important;justify-content:flex-end!important}
    body.desktop-only .header-inner{display:grid!important;grid-template-columns:auto 1fr auto!important;justify-items:unset!important}
    body.desktop-only .quote-banner{grid-template-columns:1fr auto!important}
    body.desktop-only .quote-methods{grid-template-columns:repeat(4,200px)!important}
    /* Dark theme overrides for critical elements */
    [data-theme="dark"] .hero-search{background:var(--bg2);border-color:#0081D7;box-shadow:none}
    [data-theme="dark"] .search-suggest-inner{background:var(--bg2);border-color:var(--rule)}
    [data-theme="dark"] .hero-hot a{background:var(--bg3);color:var(--ink-soft)}
    [data-theme="dark"] .hero-hot a:hover{background:var(--bg2);color:var(--accent)}
    /* Mobile responsive */
    @media (max-width:1024px){
      .search-hero{padding:28px 0 32px}
      .hero-title{font-size:22px;margin-bottom:8px}
      .hero-sub{font-size:16px;margin-bottom:10px}
      .hero-search{flex-wrap:wrap;border-radius:4px;max-width:100%;width:100%}
      .hero-search input{width:100%;min-height:48px;font-size:17px;font-weight:600;border-radius:4px 4px 0 0}
      .hero-search button{width:100%;min-height:44px;border-radius:0 0 4px 4px;padding:0 20px}
      .hero-hot{height:auto;flex-wrap:wrap;margin-top:10px;justify-content:center}
      .hero-hot a{font-size:12px;padding:3px 10px}
      .stats-row{gap:20px;margin-top:28px}
      .stat-num{font-size:22px}.stat-label{font-size:11px}
      .quote-banner{padding:20px;grid-template-columns:1fr;max-width:100%;box-sizing:border-box}
      .quote-methods{grid-template-columns:1fr}
      .header-inner{grid-template-columns:1fr auto;padding:10px 16px;min-height:56px}
      .header-nav{display:none}.hamburger{display:block}
      .header-actions{display:none!important}
      body{padding-top:110px}
      .logo-text .en{font-size:12px}
      .logo-mark{width:40px;height:40px;font-size:16px}
      .logo{gap:8px}
      
      .mobile-hint{display:block;margin:0 0 18px;padding:10px 14px;background:var(--accent-soft);border:1px solid #0081D7;border-radius:4px;font-size:12px;line-height:1.5;color:var(--accent)}
    }
    @media (max-width:640px){
      .hero-title{font-size:20px}
      .hero-search input{font-size:15px;font-weight:600;min-height:44px}
      .hero-search button{font-size:14px;min-height:40px}
    }
    /* Global popup */
    .global-popup{position:fixed;z-index:999999;background:var(--bg);border:1px solid var(--rule);border-radius:4px;box-shadow:0 16px 56px rgba(0,0,0,.18),0 4px 12px rgba(0,0,0,.08);padding:16px 20px;min-width:260px;max-width:400px;pointer-events:none}
    [data-theme="dark"] .global-popup{background:var(--ink)!important;border-color:var(--ink-soft)}