:root{
      --theme:#0B3D91;
      --theme-dark:#082c68;
      --ink:#142033;
      --muted:#68758a;
      --line:#e5eaf1;
      --soft:#f4f7fb;
      --white:#fff;
      --shadow:0 18px 50px rgba(15,39,76,.09);
      --radius:18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:#fff;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans TC","Microsoft JhengHei",sans-serif;line-height:1.7}
    body.drawer-lock{overflow:hidden}
    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}
    .skip-link{position:absolute;left:-9999px;top:8px;z-index:1000;background:var(--theme);color:#fff;padding:8px 14px;border-radius:8px}
    .skip-link:focus{left:12px}
    .topbar{background:#f4f6f9;border-bottom:1px solid #e7ebf1;color:#667389;font-size:13px}
    .topbar-inner{min-height:38px;display:flex;justify-content:space-between;align-items:center;gap:20px}
    .topbar-contact{display:flex;gap:18px;flex-wrap:wrap}
    .topbar a:hover{color:var(--theme)}
    .header{position:relative;z-index:30;background:#fff;border-bottom:1px solid var(--line)}
    .header-inner{min-height:78px;display:flex;align-items:center;gap:28px}
    .logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;white-space:nowrap}
    .logo img{width:34px;height:34px;object-fit:contain}
    .logo span{font-size:19px;letter-spacing:.01em}
    .main-nav{margin-left:auto}
    .nav-list{display:flex;align-items:center;gap:3px;list-style:none;margin:0;padding:0}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;gap:6px;padding:28px 12px;color:#36445a;font-size:14px;font-weight:650;white-space:nowrap}
    .nav-link:hover,.nav-item:focus-within>.nav-link{color:var(--theme)}
    .has-arrow:after{content:"";width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-2px)}
    .dropdown-panel,.mega-menu{position:absolute;top:calc(100% + 1px);left:50%;transform:translate(-50%,8px);width:340px;padding:20px;background:#fff;border:1px solid var(--line);border-radius:0 0 16px 16px;box-shadow:var(--shadow);opacity:0;visibility:hidden;pointer-events:none;transition:.2s ease}
    .mega-menu{width:min(850px,calc(100vw - 32px));padding:24px}
    .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}
    .dropdown-title{font-weight:800;margin-bottom:10px;color:var(--theme)}
    .dropdown-panel>a:not(.dropdown-all){display:block;padding:9px 0;border-bottom:1px solid #edf0f4;font-size:14px}
    .dropdown-panel>a:hover{color:var(--theme)}
    .dropdown-all,.mega-footer{display:flex;justify-content:space-between;align-items:center;margin-top:13px;color:var(--theme);font-size:13px;font-weight:750}
    .mega-top{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin-bottom:18px}
    .mega-top strong{display:block;font-size:17px}
    .mega-top span{display:block;color:var(--muted);font-size:12px;margin-top:2px}
    .text-link{color:var(--theme);font-size:13px;white-space:nowrap}
    .mega-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:11px}
    .mega-card{min-width:0;display:flex;gap:10px;padding:11px;border:1px solid #e8edf4;border-radius:12px;background:#fbfcfe;transition:.2s}
    .mega-card:hover{border-color:#9eb7dc;transform:translateY(-2px)}
    .mega-card>img{width:38px;height:38px;object-fit:cover;border-radius:9px;flex:none}
    .mega-card-body{min-width:0}
    .mega-card-body strong{display:block;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .mega-card-body p{margin:3px 0 0;color:var(--muted);font-size:11px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
    .mega-meta{display:flex;flex-wrap:wrap;gap:4px 8px;margin-top:4px;color:#718096;font-size:10px}
    .mega-categories{display:flex;flex-wrap:wrap;gap:7px;margin:0 0 16px}
    .mega-categories a{padding:4px 10px;border-radius:99px;background:#eef4fc;color:var(--theme);font-size:11px}
    .video-mega-card{display:block}
    .video-mega-card>img{width:100%;height:68px;margin-bottom:6px}
    .video-duration{display:inline-block;margin-top:3px;color:var(--theme);font-size:10px}
    .header-btns{display:flex;align-items:center;gap:10px}
    .header-member{color:var(--theme);font-size:13px;font-weight:700;white-space:nowrap}
    .account-btn{padding:9px 15px;background:var(--theme);color:#fff;border-radius:8px;font-size:13px;font-weight:700;white-space:nowrap}
    .account-btn:hover{background:var(--theme-dark)}
    .hamburger{display:none;border:0;background:transparent;padding:7px;cursor:pointer}
    .hamburger span{display:block;width:23px;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{display:none;position:fixed;inset:0;z-index:50;background:rgba(9,20,38,.48);opacity:0;transition:.2s}
    .drawer-overlay.open{display:block;opacity:1}
    .mobile-drawer{position:fixed;top:0;right:0;bottom:0;z-index:60;width:min(390px,88vw);background:#fff;transform:translateX(102%);transition:.28s ease;overflow:auto;box-shadow:-15px 0 40px rgba(0,0,0,.12)}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{display:flex;align-items:center;gap:12px;padding:18px 20px;border-bottom:1px solid var(--line);font-weight:800}
    .drawer-head>a{margin-left:auto;color:var(--theme);font-size:13px}
    .drawer-close{border:0;background:#f0f3f7;border-radius:50%;width:31px;height:31px;cursor:pointer;font-size:22px;line-height:1}
    .drawer-menu{padding:12px 20px 30px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:14px 0;border:0;border-bottom:1px solid #edf0f4;background:transparent;text-align:left;color:var(--ink);font-weight:700;cursor:pointer}
    .drawer-toggle:after{content:"+";float:right;color:var(--theme);font-size:19px;font-weight:400}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:5px 0 8px 14px}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:8px 0;color:var(--muted);font-size:14px}
    .drawer-submenu a:hover{color:var(--theme)}
    .about-page{overflow:hidden}
    .about-hero{padding:84px 0 70px;background:linear-gradient(135deg,#f5f8fc 0%,#fff 58%,#eef4fc 100%);border-bottom:1px solid var(--line)}
    .about-hero-inner{text-align:center;max-width:820px;margin:auto}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--theme);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before{content:"";width:26px;height:2px;background:var(--theme)}
    .about-hero h1{margin:18px 0 16px;font-size:clamp(34px,5vw,62px);line-height:1.15;letter-spacing:-.04em}
    .about-hero p{max-width:680px;margin:0 auto;color:var(--muted);font-size:17px}
    .about-stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;max-width:760px;margin:42px auto 0}
    .about-stat{padding:18px;background:#fff;border:1px solid #e4ebf4;border-radius:14px;box-shadow:0 10px 25px rgba(19,48,89,.05)}
    .about-stat strong{display:block;color:var(--theme);font-size:27px;line-height:1.2}
    .about-stat span{display:block;color:var(--muted);font-size:13px;margin-top:4px}
    .about-section{padding:88px 0}
    .section-heading{max-width:700px;margin-bottom:36px}
    .section-heading.center{text-align:center;margin-left:auto;margin-right:auto}
    .section-heading h2{margin:11px 0 10px;font-size:clamp(26px,3vw,40px);line-height:1.25;letter-spacing:-.025em}
    .section-heading p{margin:0;color:var(--muted)}
    .mission-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:54px;align-items:center}
    .mission-copy p{color:var(--muted);margin:0 0 18px}
    .mission-points{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:28px}
    .mission-point{padding:18px;border:1px solid var(--line);border-radius:14px;background:#fff}
    .mission-point b{display:block;margin-bottom:4px}
    .mission-point span{display:block;color:var(--muted);font-size:13px}
    .principles-panel{padding:30px;border-radius:22px;background:var(--theme);color:#fff;box-shadow:var(--shadow);position:relative;overflow:hidden}
    .principles-panel:after{content:"";position:absolute;width:230px;height:230px;border:1px solid rgba(255,255,255,.2);border-radius:50%;right:-80px;bottom:-100px}
    .principles-panel h3{margin:0 0 18px;font-size:22px}
    .principle{display:flex;gap:13px;padding:16px 0;border-top:1px solid rgba(255,255,255,.18)}
    .principle-num{width:28px;height:28px;display:grid;place-items:center;border-radius:50%;background:#fff;color:var(--theme);font-size:12px;font-weight:800;flex:none}
    .principle strong{display:block}
    .principle span{display:block;color:#cbdafa;font-size:13px;margin-top:2px}
    .service-section{background:var(--soft)}
    .service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .service-card{padding:24px;background:#fff;border:1px solid #e7edf5;border-radius:16px;transition:.2s}
    .service-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
    .service-icon{width:42px;height:42px;display:grid;place-items:center;background:#eaf1fb;color:var(--theme);border-radius:12px;font-weight:850}
    .service-card h3{margin:18px 0 7px;font-size:17px}
    .service-card p{margin:0;color:var(--muted);font-size:13px}
    .timeline{position:relative;max-width:850px;margin:0 auto;padding:10px 0}
    .timeline:before{content:"";position:absolute;top:0;bottom:0;left:50%;width:2px;background:#dce6f3;transform:translateX(-50%)}
    .timeline-item{position:relative;width:50%;padding:0 44px 34px}
    .timeline-item:nth-child(even){margin-left:50%}
    .timeline-dot{position:absolute;top:7px;right:-7px;width:14px;height:14px;border:4px solid #fff;border-radius:50%;background:var(--theme);box-shadow:0 0 0 2px #c8d8ed}
    .timeline-item:nth-child(even) .timeline-dot{left:-7px;right:auto}
    .timeline-card{padding:20px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:0 8px 22px rgba(20,45,80,.05)}
    .timeline-card time{color:var(--theme);font-size:12px;font-weight:800}
    .timeline-card h3{margin:5px 0 5px;font-size:17px}
    .timeline-card p{margin:0;color:var(--muted);font-size:13px}
    .trust-section{padding-top:0}
    .trust-box{display:flex;justify-content:space-between;align-items:center;gap:30px;padding:30px 34px;border:1px solid #dce6f2;border-radius:18px;background:#f8fbff}
    .trust-box h2{margin:0 0 6px;font-size:24px}
    .trust-box p{margin:0;color:var(--muted);font-size:14px}
    .trust-link{display:inline-flex;padding:12px 18px;background:var(--theme);border-radius:9px;color:#fff;font-weight:700;font-size:14px;white-space:nowrap}
    .footer{background:#111d31;color:#cad4e3}
    .footer-main{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:42px;padding:58px 0 45px}
    .footer .logo{color:#fff}
    .footer-brand p{max-width:330px;color:#9daabe;font-size:13px;margin:18px 0}
    .footer-social{color:#fff}
    .footer-col h3{margin:3px 0 17px;color:#fff;font-size:15px}
    .footer-links{display:grid;gap:9px}
    .footer-links a,.footer-contact a{color:#aab7c9;font-size:13px}
    .footer-links a:hover,.footer-contact a:hover{color:#fff}
    .footer-contact{display:grid;gap:5px}
    .footer-contact span{margin-top:5px;color:#73839b;font-size:11px}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding:18px 0;border-top:1px solid rgba(255,255,255,.1);color:#8190a5;font-size:12px}
    .footer-bottom-links{display:flex;gap:18px}
    .footer-bottom a:hover{color:#fff}
    @media(max-width:1050px){
      .main-nav{display:none}
      .hamburger{display:block}
      .header-btns{margin-left:auto}
      .service-grid{grid-template-columns:repeat(2,1fr)}
      .footer-main{grid-template-columns:1.3fr 1fr 1fr}
      .footer-col:last-child{grid-column:2 / 4}
    }
    @media(max-width:700px){
      .container{width:min(100% - 28px,1180px)}
      .topbar-inner{padding:8px 0;align-items:flex-start;flex-direction:column;gap:2px}
      .topbar-contact{gap:12px}
      .header-inner{min-height:67px;gap:10px}
      .header-member{display:none}
      .account-btn{padding:8px 10px;font-size:12px}
      .about-hero{padding:60px 0 50px}
      .about-hero p{font-size:15px}
      .about-stat-row{grid-template-columns:1fr;gap:9px;margin-top:28px}
      .about-stat{display:flex;justify-content:space-between;align-items:center;padding:13px 16px}
      .about-stat strong{font-size:22px}
      .about-section{padding:58px 0}
      .mission-grid{grid-template-columns:1fr;gap:30px}
      .mission-points{grid-template-columns:1fr}
      .service-grid{grid-template-columns:1fr}
      .timeline:before{left:8px}
      .timeline-item,.timeline-item:nth-child(even){width:100%;margin-left:0;padding:0 0 24px 32px}
      .timeline-dot,.timeline-item:nth-child(even) .timeline-dot{left:1px;right:auto}
      .trust-box{display:block;padding:24px}
      .trust-link{margin-top:18px}
      .footer-main{grid-template-columns:1fr 1fr;gap:28px;padding:42px 0 32px}
      .footer-brand{grid-column:1 / 3}
      .footer-col:last-child{grid-column:auto}
      .footer-bottom{display:block}
      .footer-bottom-links{margin-top:10px}
      .mega-grid{grid-template-columns:1fr}
    }