:root{--theme:#0B3D91;--ink:#172033;--muted:#687386;--line:#e4e8ef;--paper:#f6f8fb;--white:#fff}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:var(--paper);font-family:-apple-system,BlinkMacSystemFont,"Noto Sans TC","Microsoft JhengHei",sans-serif;line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .topbar{background:#10223d;color:#dce7f8;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{color:#fff}
    .header{position:relative;z-index:20;background:#fff;border-bottom:1px solid var(--line)}
    .header-inner{height:78px;display:flex;align-items:center;gap:30px}
    .logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:var(--theme);white-space:nowrap}
    .logo img{width:34px;height:34px;object-fit:contain}
    .main-nav{margin-left:auto}.nav-list{display:flex;align-items:center;gap:4px;margin:0;padding:0;list-style:none}
    .nav-item{position:relative}.nav-link{display:block;padding:25px 13px;font-size:15px;font-weight:700;white-space:nowrap}
    .nav-link:hover,.nav-link:focus{color:var(--theme)}
    .has-arrow:after{content:"⌄";font-size:12px;margin-left:5px}
    .dropdown-panel,.mega-menu{position:absolute;top:calc(100% - 1px);left:50%;transform:translateX(-50%);width:290px;padding:16px;background:#fff;border:1px solid var(--line);border-radius:0 0 14px 14px;box-shadow:0 18px 40px #1526421c;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}
    .dropdown-panel:before,.mega-menu:before{content:"";position:absolute;left:0;right:0;top:-12px;height:12px}
    .dropdown-panel>a:not(.mega-footer){display:block;padding:8px 10px;border-bottom:1px solid var(--line);font-size:14px}
    .mega-heading{display:flex;justify-content:space-between;color:var(--theme);font-size:13px;font-weight:800;margin-bottom:10px}
    .mega-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;max-height:330px;overflow:auto}
    .mega-card{min-height:74px;padding:10px;border:1px solid var(--line);border-radius:9px;background:#fbfcfe}
    .mega-card:hover{border-color:var(--theme);background:#f2f6fc}
    .mega-card strong,.mega-card small{display:block;overflow:hidden;text-overflow:ellipsis}
    .mega-card strong{font-size:13px}.mega-card small{font-size:11px;color:var(--muted);line-height:1.45;margin-top:3px}
    .mega-card img{width:24px;height:24px;object-fit:contain;margin-bottom:4px}
    .mega-footer{display:block;margin-top:12px;padding-top:10px;border-top:1px solid var(--line);color:var(--theme);font-size:13px;font-weight:700;text-align:right}
    .header-btns{display:flex;align-items:center;gap:10px}.member-link{color:var(--theme);font-weight:700;font-size:14px}.account-link{padding:8px 14px;background:var(--theme);color:#fff;border-radius:7px;font-size:13px}
    .hamburger{display:none;border:0;background:transparent;padding:7px;cursor:pointer}.hamburger span{display:block;width:23px;height:2px;margin:5px;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:#07132699;opacity:0;visibility:hidden;z-index:30;transition:.25s}.drawer-overlay.open{opacity:1;visibility:visible}
    .mobile-drawer{position:fixed;z-index:31;right:-370px;top:0;width:min(370px,88vw);height:100vh;background:#fff;overflow:auto;transition:.25s;box-shadow:-10px 0 30px #07132622}.mobile-drawer.open{right:0}
    .drawer-head{display:flex;align-items:center;gap:13px;padding:19px;border-bottom:1px solid var(--line);font-weight:800}.drawer-head span{margin-right:auto;color:var(--theme)}.drawer-head a{font-size:13px;color:var(--theme)}.drawer-close{border:0;background:transparent;font-size:28px;line-height:1;cursor:pointer}
    .drawer-menu{padding:10px 18px}.drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 4px;border:0;border-bottom:1px solid var(--line);background:none;text-align:left;font:inherit;font-weight:700;cursor:pointer}.drawer-toggle:after{content:"＋";float:right;color:var(--theme)}.drawer-toggle.active:after{content:"－"}.drawer-submenu{display:none;padding:4px 12px;background:#f7f9fc}.drawer-submenu.open{display:block}.drawer-submenu a{display:block;padding:8px 0;color:var(--muted);font-size:14px;border-bottom:1px solid #e9edf3}
    .footer{margin-top:70px;background:#10223d;color:#dce7f8;padding:52px 0 20px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px}.footer h2,.footer h3{margin:0 0 14px;color:#fff}.footer h2{font-size:22px}.footer h3{font-size:15px}.footer p{margin:0;color:#b8c7dc;font-size:14px}.footer-links{list-style:none;padding:0;margin:0}.footer-links li{margin:5px 0;color:#b8c7dc;font-size:13px}.footer-links a:hover{color:#fff}.footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:35px;padding-top:18px;border-top:1px solid #ffffff22;color:#aebdd2;font-size:12px}
    .video-page{padding:62px 0 20px}.page-heading{text-align:center;max-width:700px;margin:0 auto 34px}.eyebrow{display:inline-block;color:var(--theme);font-size:13px;font-weight:800;letter-spacing:.12em}.page-heading h1{font-size:clamp(30px,5vw,48px);line-height:1.2;margin:10px 0 12px}.page-heading p{color:var(--muted);margin:0}
    .video-filter{display:flex;flex-wrap:wrap;justify-content:center;gap:9px;margin:0 auto 30px}.video-filter a{padding:8px 16px;border:1px solid #ccd5e2;border-radius:999px;background:#fff;color:var(--muted);font-size:13px}.video-filter a:hover,.video-filter .active{border-color:var(--theme);background:var(--theme);color:#fff}
    .video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.video-card{overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:0 8px 24px #1526420b;transition:.2s}.video-card:hover{transform:translateY(-4px);box-shadow:0 14px 30px #15264218}.video-cover{position:relative;aspect-ratio:16/9;background:#dfe6ef;overflow:hidden}.video-cover img{width:100%;height:100%;object-fit:cover}.video-duration{position:absolute;right:10px;bottom:9px;padding:2px 7px;border-radius:4px;background:#071326cc;color:#fff;font-size:12px}.video-body{padding:17px}.video-body h2{font-size:18px;line-height:1.45;margin:0 0 8px}.video-body p{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;overflow:hidden;margin:0 0 13px;color:var(--muted);font-size:14px}.video-meta{display:flex;justify-content:space-between;color:#8792a3;font-size:12px}.pagination{display:flex;justify-content:center;gap:7px;margin-top:38px}.pagination a{min-width:36px;padding:6px 10px;text-align:center;border:1px solid var(--line);border-radius:6px;background:#fff;font-size:13px}.pagination a:hover,.pagination a.current{background:var(--theme);border-color:var(--theme);color:#fff}
    @media(max-width:980px){.main-nav{display:none}.hamburger{display:block}.header-inner{height:68px}.footer-grid{grid-template-columns:repeat(2,1fr)}.video-grid{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:620px){.container{width:min(100% - 28px,1180px)}.topbar .container{align-items:flex-start;flex-direction:column;padding:8px 0;gap:2px}.topbar-links{gap:12px}.member-link{display:none}.video-page{padding-top:42px}.video-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr;gap:24px}.footer-bottom{flex-direction:column;gap:4px}.mega-grid{grid-template-columns:1fr 1fr}}