:root{
      --theme:#0B3D91;
      --ink:#101820;
      --muted:#687386;
      --line:#e6eaf0;
      --paper:#f6f8fb;
      --white:#fff;
      --shadow:0 18px 45px rgba(15,31,54,.08);
      --radius:18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:#fff;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","微软雅黑",Arial,sans-serif;line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;height:auto}
    button{font:inherit}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}

    .topbar{height:38px;background:#0d1828;color:#cbd4e1;font-size:13px}
    .topbar .container{height:100%;display:flex;align-items:center;justify-content:space-between}
    .topbar-links{display:flex;gap:22px}
    .topbar a{color:#e6edf7;transition:color .2s}
    .topbar a:hover{color:#8db5ff}

    .header{position:relative;z-index:20;background:#fff;border-bottom:1px solid var(--line)}
    .header-inner{min-height:78px;display:flex;align-items:center;gap:30px}
    .logo{display:flex;align-items:center;gap:10px;min-width:190px;font-weight:800;letter-spacing:.02em}
    .logo img{width:34px;height:34px;object-fit:contain}
    .logo span{font-size:18px}
    .main-nav{margin-left:auto}
    .nav-list{display:flex;align-items:stretch;gap:4px;list-style:none;padding:0;margin:0}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;gap:6px;padding:26px 13px;font-size:14px;white-space:nowrap}
    .nav-link:hover{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:translate(-50%,8px);width:290px;padding:20px;background:#fff;border:1px solid var(--line);border-radius:0 0 14px 14px;box-shadow:var(--shadow);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}
    .mega-menu{width:650px}
    .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;pointer-events:auto;transform:translate(-50%,0)}
    .dropdown-panel:before,.mega-menu:before{content:"";position:absolute;top:-12px;left:0;right:0;height:12px}
    .mega-title{margin:0 0 13px;color:var(--theme);font-weight:700;font-size:14px}
    .dropdown-panel>a:not(.mega-footer){display:block;padding:9px 0;border-bottom:1px solid var(--line);font-size:14px}
    .dropdown-panel>a:hover,.mega-card:hover strong{color:var(--theme)}
    .mega-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
    .mega-card{display:flex;flex-direction:column;gap:4px;min-height:84px;padding:11px;border:1px solid var(--line);border-radius:10px;background:#fbfcfe}
    .mega-card img{width:27px;height:27px;object-fit:contain}
    .mega-card strong{font-size:13px;line-height:1.35}
    .mega-card small{font-size:11px;line-height:1.4;color:var(--muted)}
    .mega-footer{display:block;margin-top:15px;padding-top:13px;border-top:1px solid var(--line);color:var(--theme);font-weight:700;font-size:13px}
    .header-btns{display:flex;align-items:center;gap:12px}
    .member-btn{font-size:13px;color:var(--theme);white-space:nowrap}
    .open-account{background:var(--theme);color:#fff;padding:9px 15px;border-radius:8px;font-size:13px;white-space:nowrap}
    .open-account:hover{background:#092d6c}
    .hamburger{display:none;width:42px;height:38px;padding:7px;border:1px solid var(--line);border-radius:8px;background:#fff;cursor:pointer}
    .hamburger span{display:block;width:22px;height:2px;margin:4px auto;background:var(--ink);transition:.2s}
    .hamburger.active span:nth-child(1){transform:translateY(6px) rotate(45deg)}
    .hamburger.active span:nth-child(2){opacity:0}
    .hamburger.active span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

    .drawer-overlay{position:fixed;inset:0;background:rgba(7,17,31,.52);opacity:0;visibility:hidden;z-index:40;transition:.25s}
    .drawer-overlay.open{opacity:1;visibility:visible}
    .mobile-drawer{position:fixed;top:0;right:0;width:min(390px,88vw);height:100vh;background:#fff;z-index:41;transform:translateX(100%);transition:.28s;overflow:auto}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{display:flex;align-items:center;gap:15px;padding:20px;border-bottom:1px solid var(--line);font-weight:700}
    .drawer-head>a{margin-left:auto;padding:6px 12px;background:var(--theme);color:#fff;border-radius:6px;font-size:13px}
    .drawer-close{border:0;background:none;font-size:29px;line-height:1;cursor:pointer;color:var(--muted)}
    .drawer-menu{padding:10px 20px 35px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:14px 0;border:0;border-bottom:1px solid var(--line);background:none;text-align:left;font-size:15px;cursor:pointer}
    .drawer-toggle:after{content:"+";float:right;color:var(--theme);font-size:20px;line-height:1}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:4px 0 8px 15px}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:8px 0;color:var(--muted);font-size:14px}

    .about-page{background:#fff}
    .about-hero{padding:90px 0 82px;background:linear-gradient(135deg,#f4f7fc 0%,#fff 58%,#eef4ff 100%);border-bottom:1px solid var(--line)}
    .about-hero .eyebrow{display:inline-flex;align-items:center;gap:9px;margin-bottom:22px;color:var(--theme);font-size:13px;font-weight:800;letter-spacing:.12em}
    .about-hero .eyebrow:before{content:"";width:30px;height:2px;background:var(--theme)}
    .about-hero h1{max-width:790px;margin:0;font-size:clamp(38px,6vw,74px);line-height:1.12;letter-spacing:-.045em}
    .about-hero h1 span{color:var(--theme)}
    .about-hero p{max-width:680px;margin:25px 0 0;color:var(--muted);font-size:18px}
    .about-hero-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
    .about-hero-meta span{padding:8px 13px;border:1px solid #ced9ea;border-radius:999px;background:#fff;color:#40516a;font-size:13px}

    .about-section{padding:88px 0}
    .about-section.alt{background:var(--paper)}
    .section-heading{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:35px}
    .section-heading h2{margin:0;font-size:clamp(28px,4vw,44px);line-height:1.2;letter-spacing:-.03em}
    .section-heading p{max-width:470px;margin:0;color:var(--muted)}
    .about-intro{display:grid;grid-template-columns:1.05fr .95fr;gap:65px;align-items:start}
    .about-intro h2{margin:0 0 20px;font-size:38px;line-height:1.25}
    .about-intro p{margin:0 0 17px;color:var(--muted)}
    .quote-card{position:relative;padding:34px;border-radius:var(--radius);background:var(--ink);color:#fff;overflow:hidden;min-height:250px}
    .quote-card:after{content:"";position:absolute;width:210px;height:210px;right:-70px;bottom:-85px;border:35px solid #164b9f;border-radius:50%;opacity:.8}
    .quote-card strong{position:relative;z-index:1;display:block;max-width:340px;font-size:28px;line-height:1.35}
    .quote-card small{position:relative;z-index:1;display:block;margin-top:25px;color:#b8c8df}
    .value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .value-card{padding:27px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 8px 25px rgba(15,31,54,.04)}
    .value-icon{display:grid;place-items:center;width:42px;height:42px;margin-bottom:18px;border-radius:12px;background:#e9f0ff;color:var(--theme);font-weight:800}
    .value-card h3{margin:0 0 9px;font-size:20px}
    .value-card p{margin:0;color:var(--muted);font-size:14px}
    .timeline{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
    .timeline:before{content:"";position:absolute;top:19px;left:8%;right:8%;height:2px;background:#cddaf0}
    .timeline-item{position:relative;padding-top:54px}
    .timeline-dot{position:absolute;top:8px;left:0;width:24px;height:24px;border:6px solid #d9e5fb;border-radius:50%;background:var(--theme);z-index:1}
    .timeline-item strong{display:block;color:var(--theme);font-size:14px;margin-bottom:8px}
    .timeline-item h3{margin:0 0 8px;font-size:19px}
    .timeline-item p{margin:0;color:var(--muted);font-size:14px}
    .trust-strip{display:flex;flex-wrap:wrap;justify-content:space-between;gap:20px;padding:28px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .trust-item{min-width:180px}
    .trust-item b{display:block;color:var(--theme);font-size:30px;line-height:1.2}
    .trust-item span{color:var(--muted);font-size:13px}
    .about-cta{padding:68px 45px;border-radius:var(--radius);background:var(--theme);color:#fff;display:flex;justify-content:space-between;align-items:center;gap:25px}
    .about-cta h2{margin:0;font-size:32px;line-height:1.25}
    .about-cta p{margin:10px 0 0;color:#d4e2fa}
    .about-cta a{display:inline-block;flex:none;padding:13px 21px;border-radius:8px;background:#fff;color:var(--theme);font-weight:700;font-size:14px}

    .footer{padding:65px 0 22px;background:#0d1828;color:#d6deea}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:45px}
    .footer-brand strong{display:block;margin-bottom:15px;color:#fff;font-size:20px}
    .footer p{margin:8px 0;color:#9baabd;font-size:13px}
    .footer h3{margin:0 0 16px;color:#fff;font-size:15px}
    .footer-grid>div:not(.footer-brand) a{display:block;margin:8px 0;color:#aebbd0;font-size:13px}
    .footer-grid a:hover{color:#fff}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:42px;padding-top:18px;border-top:1px solid #26364c;color:#8796aa;font-size:12px}

    @media(max-width:1050px){
      .main-nav{display:none}
      .hamburger{display:block}
      .header-btns{margin-left:auto}
      .about-intro{gap:35px}
    }
    @media(max-width:760px){
      .container{width:min(100% - 30px,600px)}
      .topbar{height:auto;padding:8px 0}
      .topbar .container,.topbar-links{gap:7px;flex-wrap:wrap}
      .topbar-links{justify-content:flex-end}
      .topbar-links a{font-size:11px}
      .header-inner{min-height:66px;gap:12px}
      .logo{min-width:0}
      .logo span{font-size:15px}
      .member-btn{display:none}
      .open-account{padding:8px 11px;font-size:12px}
      .about-hero{padding:63px 0 58px}
      .about-hero p{font-size:16px}
      .about-section{padding:60px 0}
      .about-intro{display:block}
      .about-intro h2{font-size:30px}
      .quote-card{margin-top:28px}
      .value-grid{grid-template-columns:1fr}
      .section-heading{display:block}
      .section-heading p{margin-top:14px}
      .timeline{grid-template-columns:1fr 1fr;gap:30px 18px}
      .timeline:before{display:none}
      .timeline-item{padding-top:40px}
      .about-cta{display:block;padding:35px 25px}
      .about-cta h2{font-size:27px}
      .about-cta a{margin-top:23px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px 20px}
      .footer-brand{grid-column:1/-1}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:7px}
    }
    @media(max-width:430px){
      .timeline{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      .footer-brand{grid-column:auto}
    }