:root{
      --theme:#0B3D91;
      --ink:#14213d;
      --muted:#64748b;
      --line:#dbe4f0;
      --soft:#f4f7fb;
      --white:#fff;
      --shadow:0 18px 50px rgba(15,39,78,.10);
      --radius:18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:#fff;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7}
    a{color:inherit;text-decoration:none}
    button{font:inherit}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}
    .topbar{background:#0d1d38;color:#cbd7eb;font-size:13px}
    .topbar-inner{min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .topbar-links{display:flex;gap:22px}
    .topbar a{color:#dbe8ff}
    .header{position:relative;z-index:20;background:#fff;border-bottom:1px solid #e8eef6}
    .header-inner{height:78px;display:flex;align-items:center;gap:30px}
    .logo{display:flex;align-items:center;gap:10px;min-width:190px;color:var(--theme);font-size:19px;font-weight:800;white-space:nowrap}
    .logo img{width:38px;height:38px;object-fit:contain;border-radius:10px}
    .main-nav{flex:1}
    .nav-list{list-style:none;display:flex;align-items:stretch;justify-content:center;gap:4px;margin:0;padding:0}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;gap:5px;padding:27px 14px;color:#293956;font-size:14px;font-weight:600;white-space:nowrap}
    .nav-link:hover,.nav-link:focus{color:var(--theme)}
    .has-arrow:after{content:"";width:6px;height:6px;border-right:1px solid currentColor;border-bottom:1px solid currentColor;transform:rotate(45deg) translateY(-2px)}
    .dropdown-panel,.mega-menu{position:absolute;top:calc(100% - 1px);left:50%;transform:translateX(-50%) translateY(8px);width:300px;padding:22px;background:#fff;border:1px solid #e5ebf4;border-radius:0 0 16px 16px;box-shadow:var(--shadow);opacity:0;visibility:hidden;transition:.2s ease}
    .mega-menu{width:min(800px,calc(100vw - 30px));padding:26px}
    .nav-item:hover>.dropdown-panel,.nav-item:focus-within>.dropdown-panel,.nav-item:hover>.mega-menu,.nav-item:focus-within>.mega-menu{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
    .nav-item>.dropdown-panel:before,.nav-item>.mega-menu:before{content:"";position:absolute;left:0;right:0;top:-12px;height:12px}
    .dropdown-title,.mega-title{margin:0 0 12px;color:var(--theme);font-size:14px;font-weight:800}
    .dropdown-list,.mega-links{display:grid;gap:8px}
    .dropdown-list a,.mega-links a{padding:8px 10px;border-radius:8px;color:#53627b;font-size:13px}
    .dropdown-list a:hover,.mega-links a:hover{background:#eef4ff;color:var(--theme)}
    .mega-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
    .mega-cards{display:grid;grid-template-columns:1fr 1fr;gap:10px}
    .mega-card{display:flex;gap:9px;min-width:0;padding:10px;border:1px solid #e7edf5;border-radius:10px;background:#fbfdff}
    .mega-card:hover{border-color:#a9c3ef;background:#f2f7ff}
    .mega-card img{width:34px;height:34px;object-fit:cover;border-radius:7px;background:#e8eef8;flex:0 0 auto}
    .mega-card>span{display:grid;gap:2px;min-width:0}
    .mega-card strong,.mega-card span span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
    .mega-card strong{font-size:12px;color:#203454}
    .mega-card span span{font-size:10px;color:#78869c}
    .mega-footer{display:inline-block;margin-top:17px;color:var(--theme);font-size:13px;font-weight:700}
    .header-btns{display:flex;align-items:center;gap:10px;white-space:nowrap}
    .member-link{color:var(--theme);font-size:13px;font-weight:700}
    .account-link{padding:10px 15px;border-radius:9px;background:var(--theme);color:#fff;font-size:13px;font-weight:700}
    .hamburger{display:none;width:42px;height:40px;border:1px solid var(--line);border-radius:9px;background:#fff;cursor:pointer}
    .hamburger span{display:block;width:19px;height:2px;margin:4px auto;background:var(--theme);transition:.2s}
    .drawer-overlay{display:none;position:fixed;inset:0;background:rgba(5,18,39,.48);z-index:39}
    .drawer-overlay.open{display:block}
    .mobile-drawer{position:fixed;top:0;right:0;bottom:0;width:min(360px,88vw);padding:22px;background:#fff;z-index:40;transform:translateX(100%);transition:.28s ease;overflow:auto;box-shadow:-15px 0 40px rgba(0,0,0,.15)}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{display:flex;align-items:center;gap:13px;padding-bottom:18px;border-bottom:1px solid var(--line);color:var(--theme);font-weight:800}
    .drawer-head span{flex:1}
    .drawer-head a{padding:7px 11px;border-radius:7px;background:var(--theme);color:#fff;font-size:12px}
    .drawer-close{border:0;background:none;color:#65738b;font-size:27px;line-height:1;cursor:pointer}
    .drawer-menu{padding-top:12px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 3px;border:0;border-bottom:1px solid #edf1f6;background:none;color:#263958;text-align:left;font-weight:700;cursor:pointer}
    .drawer-toggle:after{content:"+";float:right;color:var(--theme);font-size:18px}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:5px 0 7px 15px}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:7px 0;color:var(--muted);font-size:13px}
    .footer{margin-top:80px;padding:55px 0 22px;background:#0d1d38;color:#afbdd3}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:35px}
    .footer-brand strong{display:block;color:#fff;font-size:20px;margin-bottom:13px}
    .footer-brand p{max-width:330px;margin:0;font-size:13px;line-height:1.9}
    .footer h3{margin:0 0 15px;color:#fff;font-size:14px}
    .footer-links{display:grid;gap:8px;font-size:13px}
    .footer-links a:hover{color:#fff}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:42px;padding-top:18px;border-top:1px solid rgba(255,255,255,.14);font-size:12px}
    .about-page{background:linear-gradient(180deg,#f6f9fe 0,#fff 430px)}
    .about-hero{padding:82px 0 70px;text-align:center;background:radial-gradient(circle at 50% 0,#dfeaff 0,rgba(223,234,255,0) 52%)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;margin:0 0 15px;color:var(--theme);font-size:13px;font-weight:800;letter-spacing:.12em}
    .eyebrow:before{content:"";width:24px;height:2px;background:var(--theme)}
    .about-hero h1{max-width:760px;margin:0 auto 18px;color:#102647;font-size:clamp(34px,5vw,62px);line-height:1.16;letter-spacing:-.04em}
    .about-hero p{max-width:650px;margin:0 auto;color:#61718a;font-size:17px}
    .about-section{padding:75px 0}
    .section-heading{max-width:650px;margin-bottom:35px}
    .section-heading.center{text-align:center;margin-left:auto;margin-right:auto}
    .section-heading h2{margin:0 0 12px;color:#13284a;font-size:clamp(26px,3vw,40px);line-height:1.25}
    .section-heading p{margin:0;color:var(--muted)}
    .story-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:55px;align-items:center}
    .story-copy p{margin:0 0 17px;color:#55657e}
    .story-panel{position:relative;padding:34px;border-radius:24px;background:linear-gradient(145deg,#0B3D91,#1769c9);color:#fff;overflow:hidden;box-shadow:var(--shadow)}
    .story-panel:after{content:"";position:absolute;width:220px;height:220px;right:-70px;top:-70px;border:35px solid rgba(255,255,255,.13);border-radius:50%}
    .story-panel strong{position:relative;z-index:1;display:block;margin-bottom:22px;font-size:22px}
    .story-panel p{position:relative;z-index:1;margin:0;color:#dbeaff;font-size:14px}
    .metric-row{position:relative;z-index:1;display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:30px}
    .metric{padding:15px 0;border-top:1px solid rgba(255,255,255,.28)}
    .metric b{display:block;font-size:24px;color:#fff}
    .metric span{font-size:12px;color:#c7dcfa}
    .value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .value-card{padding:28px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:0 8px 25px rgba(27,58,105,.05)}
    .value-icon{display:grid;place-items:center;width:44px;height:44px;margin-bottom:18px;border-radius:12px;background:#e8f0ff;color:var(--theme);font-size:21px;font-weight:800}
    .value-card h3{margin:0 0 8px;font-size:18px}
    .value-card p{margin:0;color:var(--muted);font-size:14px}
    .timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid #cbd8eb}
    .timeline-item{position:relative;padding:28px 22px 0 0}
    .timeline-item:before{content:"";position:absolute;top:-7px;left:0;width:12px;height:12px;border:3px solid #fff;border-radius:50%;background:var(--theme);box-shadow:0 0 0 1px var(--theme)}
    .timeline-item:not(:last-child){margin-right:20px}
    .timeline-year{color:var(--theme);font-size:13px;font-weight:800}
    .timeline-item h3{margin:8px 0 7px;font-size:17px}
    .timeline-item p{margin:0;color:var(--muted);font-size:13px}
    .trust-band{padding:34px;border-radius:22px;background:#f0f5fc;text-align:center}
    .trust-band h2{margin:0 0 8px;font-size:25px}
    .trust-band p{margin:0 auto 22px;max-width:690px;color:var(--muted);font-size:14px}
    .trust-links{display:flex;justify-content:center;flex-wrap:wrap;gap:12px}
    .trust-links a{padding:10px 18px;border:1px solid #c9d8ee;border-radius:9px;background:#fff;color:var(--theme);font-size:13px;font-weight:700}
    @media(max-width:1050px){
      .main-nav{display:none}
      .hamburger{display:block}
      .header-inner{justify-content:space-between}
      .header-btns{margin-left:auto}
    }
    @media(max-width:760px){
      .container{width:min(100% - 28px,1180px)}
      .topbar-inner{padding:8px 0;align-items:flex-start}
      .topbar-links{display:grid;gap:0;text-align:right}
      .member-link{display:none}
      .account-link{display:none}
      .about-hero{padding:58px 0 48px}
      .about-hero p{font-size:15px}
      .about-section{padding:52px 0}
      .story-grid,.value-grid{grid-template-columns:1fr}
      .story-panel{padding:26px}
      .timeline{grid-template-columns:1fr 1fr;gap:25px 15px}
      .timeline-item{padding-top:20px}
      .timeline-item:not(:last-child){margin-right:0}
      .footer{margin-top:45px;padding-top:40px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px 18px}
      .footer-brand{grid-column:1/-1}
      .footer-bottom{display:grid;gap:8px;margin-top:30px}
      .mega-grid{grid-template-columns:1fr}
      .mega-cards{grid-template-columns:1fr}
    }
    @media(max-width:430px){
      .logo{min-width:0;font-size:16px}
      .logo img{width:32px;height:32px}
      .topbar{font-size:11px}
      .topbar-links{font-size:10px}
      .metric-row{gap:9px}
      .metric b{font-size:20px}
      .timeline{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
    }