:root{
      --theme:#0B3D91;
      --ink:#172033;
      --muted:#687286;
      --line:#dfe4ec;
      --soft:#f4f6f9;
      --white:#fff;
      --accent:#c2185b;
      --shadow:0 16px 42px rgba(23,32,51,.08);
      --radius:8px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:#fff;color:var(--ink);font-family:Arial,"Noto Sans TC","Microsoft JhengHei",sans-serif;line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button{font:inherit}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}
    .topbar{background:#101828;color:#d8dfeb;font-size:13px}
    .topbar .container{min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .topbar-links{display:flex;gap:20px}
    .topbar a:hover{color:#fff}
    .header{position:relative;background:#fff;border-bottom:1px solid var(--line);z-index:20}
    .header-inner{height:78px;display:flex;align-items:center;gap:30px}
    .logo{display:flex;align-items:center;gap:10px;min-width:190px;font-size:18px;font-weight:800;color:var(--theme)}
    .logo img{width:38px;height:38px;object-fit:contain}
    .main-nav{flex:1}
    .nav-list{display:flex;align-items:stretch;justify-content:center;gap:2px;margin:0;padding:0;list-style:none}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;gap:5px;height:78px;padding:0 13px;font-size:14px;font-weight:700;white-space:nowrap}
    .nav-link:hover,.nav-link:focus{color:var(--accent)}
    .has-arrow:after{content:"";width:6px;height:6px;border-right:1px solid currentColor;border-bottom:1px solid currentColor;transform:rotate(45deg);margin-top:-4px}
    .dropdown-panel,.mega-menu{position:absolute;top:calc(100% - 1px);left:50%;width:310px;padding:20px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);opacity:0;visibility:hidden;transform:translate(-50%,8px);transition:.2s ease;z-index:30}
    .mega-menu{width:580px}
    .nav-item:after{content:"";position:absolute;left:0;right:0;top:100%;height:12px}
    .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:translate(-50%,0)}
    .panel-title{margin:0 0 13px;color:var(--theme);font-size:13px;font-weight:800;letter-spacing:.04em}
    .panel-list{display:grid;gap:8px}
    .panel-list a{display:block;padding:6px 0;border-bottom:1px solid #eef1f5;font-size:13px}
    .panel-list a:hover{color:var(--accent)}
    .mega-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
    .mega-card{display:flex;gap:9px;min-width:0;padding:9px;border:1px solid #edf0f4;border-radius:6px}
    .mega-card:hover{border-color:#b9c8e2;background:#fafcff}
    .mega-card img{width:34px;height:34px;object-fit:contain;flex:0 0 34px}
    .mega-card span{min-width:0}
    .mega-card strong,.mega-card small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
    .mega-card strong{font-size:12px}
    .mega-card small{color:var(--muted);font-size:11px;line-height:1.5}
    .mega-footer{display:block;margin-top:15px;padding-top:12px;border-top:1px solid var(--line);color:var(--theme);font-size:13px;font-weight:700}
    .header-btns{display:flex;align-items:center;gap:10px}
    .member-link,.account-link{display:inline-flex;align-items:center;justify-content:center;min-height:36px;padding:0 13px;border-radius:5px;font-size:13px;font-weight:700}
    .member-link{color:var(--theme);border:1px solid #bdcbe2}
    .account-link{background:var(--theme);color:#fff}
    .member-link:hover{background:#f4f7fc}
    .account-link:hover{background:#092e70}
    .hamburger{display:none;width:40px;height:40px;padding:8px;border:1px solid var(--line);background:#fff;border-radius:5px;cursor:pointer}
    .hamburger span{display:block;height:2px;margin:5px 0;background:var(--ink);transition:.2s}
    .hamburger.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
    .hamburger.active span:nth-child(2){opacity:0}
    .hamburger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
    .drawer-overlay{position:fixed;inset:0;background:rgba(8,17,31,.48);opacity:0;visibility:hidden;transition:.2s;z-index:40}
    .drawer-overlay.open{opacity:1;visibility:visible}
    .mobile-drawer{position:fixed;top:0;right:0;width:min(390px,88vw);height:100vh;background:#fff;transform:translateX(100%);transition:.25s ease;z-index:41;overflow:auto}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{display:flex;align-items:center;gap:10px;padding:18px 20px;border-bottom:1px solid var(--line)}
    .drawer-head strong{flex:1;color:var(--theme)}
    .drawer-head a{padding:6px 10px;background:var(--theme);color:#fff;border-radius:4px;font-size:12px}
    .drawer-close{border:0;background:transparent;font-size:28px;line-height:1;cursor:pointer;color:var(--muted)}
    .drawer-menu{padding:12px 20px 30px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 0;border:0;border-bottom:1px solid #edf0f4;background:transparent;text-align:left;font-weight:700;color:var(--ink);cursor:pointer}
    .drawer-toggle:after{content:"+";float:right;color:var(--muted);font-size:20px;font-weight:400}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:5px 0 8px 15px;border-bottom:1px solid #edf0f4}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:7px 0;color:var(--muted);font-size:13px}
    .drawer-submenu a:hover{color:var(--accent)}
    .footer{background:#101828;color:#ccd4e1;padding:54px 0 18px}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
    .footer-brand strong{display:block;color:#fff;font-size:20px;margin-bottom:12px}
    .footer p{margin:7px 0;color:#aeb9ca;font-size:13px}
    .footer h3{margin:0 0 13px;color:#fff;font-size:14px}
    .footer-links{display:grid;gap:7px}
    .footer-links a{color:#aeb9ca;font-size:13px}
    .footer-links a:hover{color:#fff}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:38px;padding-top:17px;border-top:1px solid #2a3547;color:#8e9bad;font-size:12px}
    .about-page{background:#f6f7fa}
    .about-hero{padding:72px 0 62px;background:#fff;border-bottom:1px solid var(--line)}
    .about-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--accent);font-size:13px;font-weight:800;letter-spacing:.1em}
    .about-kicker:before{content:"";width:28px;height:2px;background:var(--accent)}
    .about-hero h1{max-width:780px;margin:16px 0 14px;color:var(--ink);font-size:clamp(34px,5vw,62px);line-height:1.15;letter-spacing:0}
    .about-hero p{max-width:690px;margin:0;color:var(--muted);font-size:17px}
    .about-content{padding:58px 0 76px}
    .section-heading{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:24px}
    .section-heading h2{margin:0;font-size:28px;line-height:1.25}
    .section-heading p{max-width:530px;margin:0;color:var(--muted);font-size:14px}
    .about-intro{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;margin-bottom:58px}
    .about-copy,.trust-panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 8px 25px rgba(23,32,51,.04)}
    .about-copy{padding:30px}
    .about-copy h2{margin:0 0 16px;font-size:25px}
    .about-copy p{margin:0 0 15px;color:var(--muted);font-size:15px}
    .about-copy p:last-child{margin-bottom:0}
    .trust-panel{padding:28px}
    .trust-panel h3{margin:0 0 18px;font-size:18px}
    .trust-list{display:grid;gap:14px}
    .trust-item{display:flex;align-items:flex-start;gap:12px;padding-bottom:14px;border-bottom:1px solid #edf0f4}
    .trust-item:last-child{padding-bottom:0;border-bottom:0}
    .trust-mark{display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:#eaf0fb;color:var(--theme);font-weight:800;flex:0 0 30px}
    .trust-item strong{display:block;font-size:14px}
    .trust-item span{display:block;color:var(--muted);font-size:13px;line-height:1.5}
    .service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:60px}
    .service-card{padding:25px;background:#fff;border:1px solid var(--line);border-top:3px solid var(--theme);border-radius:var(--radius)}
    .service-number{color:var(--accent);font-size:12px;font-weight:800;letter-spacing:.1em}
    .service-card h3{margin:12px 0 8px;font-size:18px}
    .service-card p{margin:0;color:var(--muted);font-size:14px}
    .principles{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:58px}
    .principle{padding:22px 18px;background:#fff;border-left:3px solid var(--accent);border-radius:5px}
    .principle strong{display:block;margin-bottom:7px;font-size:15px}
    .principle span{display:block;color:var(--muted);font-size:13px;line-height:1.55}
    .about-cta{display:flex;align-items:center;justify-content:space-between;gap:25px;padding:28px 30px;background:var(--theme);color:#fff;border-radius:var(--radius)}
    .about-cta h2{margin:0 0 5px;font-size:23px}
    .about-cta p{margin:0;color:#dce7fb;font-size:14px}
    .cta-link{display:inline-flex;align-items:center;justify-content:center;padding:11px 18px;background:#fff;color:var(--theme);border-radius:5px;font-size:13px;font-weight:800;white-space:nowrap}
    .cta-link:hover{background:#edf3ff}
    @media (max-width:1050px){
      .main-nav{display:none}
      .hamburger{display:block}
      .header-btns .member-link{display:none}
      .header-inner{justify-content:space-between}
      .header-btns{margin-left:auto}
    }
    @media (max-width:760px){
      .container{width:min(100% - 28px,600px)}
      .topbar .container{min-height:44px;align-items:flex-start;flex-direction:column;justify-content:center;gap:0}
      .topbar-links{gap:12px;font-size:12px}
      .logo{min-width:0;font-size:16px}
      .logo img{width:32px;height:32px}
      .account-link{display:none}
      .about-hero{padding:48px 0 42px}
      .about-hero h1{font-size:38px}
      .about-hero p{font-size:15px}
      .about-content{padding:40px 0 54px}
      .about-intro,.service-grid,.principles{grid-template-columns:1fr}
      .about-copy,.trust-panel{padding:23px}
      .section-heading{display:block}
      .section-heading h2{margin-bottom:10px;font-size:24px}
      .about-cta{display:block;padding:24px}
      .cta-link{margin-top:18px}
      .footer{padding-top:40px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px 18px}
      .footer-brand{grid-column:1/-1}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin-top:6px}
    }
    @media (max-width:460px){
      .footer-grid{grid-template-columns:1fr}
      .footer-brand{grid-column:auto}
      .topbar-links{flex-wrap:wrap}
    }