:root{--theme:#0B3D91;--ink:#152238;--muted:#657287;--line:#dce3ec;--soft:#f3f6fa;--white:#fff;--shadow:0 16px 40px rgba(18,38,63,.10)}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:#f7f9fc;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans TC",Arial,sans-serif;line-height:1.6}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .topbar{background:#10233f;color:#dbe6f5;font-size:13px}
    .topbar-inner{height:36px;display:flex;align-items:center;justify-content:space-between}
    .topbar-contact{display:flex;gap:20px}
    .header{position:relative;z-index:20;background:#fff;border-bottom:1px solid var(--line)}
    .header-inner{min-height:74px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:10px;white-space:nowrap;font-weight:800;color:var(--theme);font-size:19px}
    .logo img{width:34px;height:34px;object-fit:contain}
    .main-nav{margin-left:auto}
    .nav-list{display:flex;align-items:stretch;gap:4px;list-style:none;margin:0;padding:0}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;gap:5px;padding:25px 13px;font-size:14px;font-weight:650;white-space:nowrap}
    .has-arrow:after{content:"⌄";font-size:13px;color:#8290a3}
    .nav-item:hover>.dropdown-panel,.nav-item:focus-within>.dropdown-panel,
    .nav-item:hover>.mega-menu,.nav-item:focus-within>.mega-menu{display:block}
    .dropdown-panel,.mega-menu{display:none;position:absolute;top:100%;left:50%;transform:translateX(-50%);width:330px;padding:20px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:0 0 8px 8px}
    .mega-menu{width:650px}
    .dropdown-panel:before,.mega-menu:before{content:"";position:absolute;left:0;right:0;top:-10px;height:10px}
    .panel-title,.mega-block h3{margin:0 0 12px;color:var(--theme);font-size:15px}
    .panel-list{display:grid;gap:8px}
    .panel-list a,.footer-links a{color:#42526a;font-size:14px}
    .panel-list a:hover,.footer-links a:hover{color:var(--theme)}
    .mega-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
    .mega-block p{font-size:13px;color:var(--muted);margin:8px 0}
    .broker-mini,.video-mini,.tool-mini,.product-mini{display:flex;align-items:center;gap:10px;padding:8px 0;border-bottom:1px solid #edf1f5}
    .broker-mini img,.video-mini img,.tool-mini img,.product-mini img{width:38px;height:38px;object-fit:cover;border-radius:5px;background:var(--soft)}
    .broker-mini span,.video-mini span,.tool-mini span,.product-mini span{min-width:0;display:grid;gap:1px}
    .broker-mini strong,.video-mini strong,.tool-mini strong,.product-mini strong{font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
    .broker-mini small,.video-mini small,.tool-mini small,.product-mini small{font-size:11px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
    .mega-footer{display:inline-block;margin-top:14px;color:var(--theme);font-size:13px;font-weight:700}
    .header-btns{display:flex;align-items:center;gap:10px}
    .member-link{color:var(--theme);font-size:13px;font-weight:700;white-space:nowrap}
    .open-account{padding:9px 14px;background:var(--theme);color:#fff;border-radius:5px;font-size:13px;font-weight:700;white-space:nowrap}
    .hamburger{display:none;width:42px;height:40px;padding:9px;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{display:none;position:fixed;inset:0;background:rgba(9,22,39,.48);z-index:40}
    .drawer-overlay.open{display:block}
    .mobile-drawer{position:fixed;z-index:50;top:0;right:-390px;width:min(380px,90vw);height:100vh;overflow:auto;background:#fff;transition:right .25s ease;box-shadow:-12px 0 35px rgba(0,0,0,.16)}
    .mobile-drawer.open{right:0}
    .drawer-head{height:68px;display:flex;align-items:center;gap:15px;padding:0 20px;border-bottom:1px solid var(--line);font-weight:700;color:var(--theme)}
    .drawer-head span{margin-right:auto}
    .drawer-head a{font-size:13px;color:var(--theme)}
    .drawer-close{border:0;background:transparent;color:#58677a;font-size:28px;line-height:1;cursor:pointer}
    .drawer-menu{padding:10px 20px 30px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:14px 0;border:0;border-bottom:1px solid #edf1f5;background:transparent;text-align:left;font:inherit;color:var(--ink);cursor:pointer}
    .drawer-toggle:after{content:"＋";float:right;color:var(--muted)}
    .drawer-toggle.active:after{content:"－"}
    .drawer-submenu{display:none;padding:5px 0 8px 15px}
    .drawer-submenu.open{display:grid}
    .drawer-submenu a{padding:7px 0;color:var(--muted);font-size:14px}
    .footer{margin-top:70px;background:#10233f;color:#dbe6f5}
    .footer-main{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding:52px 0 40px}
    .footer h3{margin:0 0 15px;color:#fff;font-size:15px}
    .footer p{margin:7px 0;color:#aebdd0;font-size:13px}
    .footer-links{display:grid;gap:8px}
    .footer-links a{color:#b9c8d9}
    .footer-contact a{color:#fff}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding:18px 0;border-top:1px solid rgba(255,255,255,.14);color:#9fb0c4;font-size:12px}
    .video-page{padding:0 0 10px}
    .video-page .page-hero{padding:70px 0 46px;background:linear-gradient(180deg,#eef4fb 0%,#f7f9fc 100%);border-bottom:1px solid var(--line);text-align:center}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--theme);font-size:12px;font-weight:800;letter-spacing:1px}
    .eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--theme)}
    .video-page h1{max-width:720px;margin:13px auto 10px;font-size:clamp(32px,5vw,54px);line-height:1.15;letter-spacing:0}
    .video-page .intro{max-width:650px;margin:auto;color:var(--muted);font-size:16px}
    .category-bar{display:flex;flex-wrap:wrap;justify-content:center;gap:9px;margin-top:28px}
    .category-bar a{padding:8px 14px;border:1px solid #cbd7e6;background:#fff;border-radius:999px;color:#41536c;font-size:13px}
    .category-bar a:hover,.category-bar a.active{background:var(--theme);border-color:var(--theme);color:#fff}
    .video-content{padding:48px 0}
    .section-heading{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:22px}
    .section-heading h2{margin:0;font-size:24px}
    .section-heading p{margin:0;color:var(--muted);font-size:13px}
    .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:8px;box-shadow:0 7px 20px rgba(20,42,72,.05);transition:transform .2s,box-shadow .2s}
    .video-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .video-cover{position:relative;aspect-ratio:16/9;background:#dce6f2;overflow:hidden}
    .video-cover img{width:100%;height:100%;object-fit:cover}
    .play-mark{position:absolute;left:16px;bottom:14px;width:38px;height:38px;display:grid;place-items:center;border-radius:50%;background:#fff;color:var(--theme);box-shadow:0 5px 15px rgba(0,0,0,.18)}
    .duration{position:absolute;right:10px;bottom:10px;padding:3px 7px;background:rgba(8,22,40,.78);color:#fff;border-radius:3px;font-size:11px}
    .video-body{padding:17px}
    .video-meta{display:flex;justify-content:space-between;gap:10px;color:var(--theme);font-size:12px}
    .video-card h3{margin:8px 0 7px;font-size:17px;line-height:1.4}
    .video-card p{display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;overflow:hidden;margin:0;color:var(--muted);font-size:13px}
    .pagination{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;margin-top:40px}
    .pagination a{min-width:36px;padding:7px 11px;text-align:center;border:1px solid var(--line);background:#fff;border-radius:4px;color:#53647a;font-size:13px}
    .pagination a.active,.pagination a:hover{background:var(--theme);border-color:var(--theme);color:#fff}
    @media(max-width:1000px){
      .main-nav{display:none}.hamburger{display:block}.header-inner{justify-content:space-between}.header-btns{margin-left:auto}
      .footer-main{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:700px){
      .container{width:min(100% - 28px,1180px)}.topbar-inner{height:auto;min-height:36px;padding:8px 0;align-items:flex-start;gap:8px;flex-direction:column}.topbar-contact{gap:12px;flex-wrap:wrap}
      .header-inner{min-height:64px;gap:10px}.member-link{display:none}.open-account{padding:8px 11px}
      .video-page .page-hero{padding:48px 0 34px}.video-page .intro{font-size:14px}.video-content{padding:35px 0}
      .section-heading{display:block}.section-heading p{margin-top:5px}.video-grid{grid-template-columns:1fr;gap:16px}
      .footer-main{grid-template-columns:1fr;gap:25px;padding:38px 0}.footer-bottom{display:grid;gap:5px}
      .mega-grid{grid-template-columns:1fr}
    }