:root{--theme:#0B3D91;--ink:#101828;--muted:#667085;--line:#e4e7ec;--soft:#f5f8fc;--white:#fff}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans TC",sans-serif;background:#fff;line-height:1.65}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button{font:inherit}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .topbar{background:#0d1b2a;color:#d9e4f2;font-size:13px}
    .topbar-inner{height:38px;display:flex;align-items:center;justify-content:space-between}
    .topbar-contact{display:flex;gap:22px}
    .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:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:800;white-space:nowrap;color:var(--ink)}
    .logo img{width:34px;height:34px;object-fit:contain}
    .main-nav{margin-left:auto}
    .nav-list{list-style:none;display:flex;align-items:center;gap:4px;padding:0;margin:0}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;gap:5px;padding:27px 13px;font-size:14px;font-weight:650}
    .nav-link:hover,.nav-link:focus{color:var(--theme)}
    .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:100%;left:50%;transform:translateX(-50%);background:#fff;border:1px solid var(--line);box-shadow:0 18px 45px rgba(16,24,40,.14);border-radius:0 0 14px 14px;padding:22px;opacity:0;visibility:hidden;pointer-events:none;transition:.2s;z-index:30}
    .dropdown-panel{width:330px}
    .mega-menu{width:570px}
    .mega-menu-wide{width:780px}
    .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;top:-18px;left:0;right:0;height:18px}
    .dropdown-title,.mega-head{display:flex;justify-content:space-between;gap:16px;align-items:center;border-bottom:1px solid var(--line);padding-bottom:13px;margin-bottom:14px}
    .dropdown-title span,.mega-head strong{font-size:16px}
    .dropdown-title a,.mega-head span{font-size:12px;color:var(--theme)}
    .dropdown-article{display:grid;grid-template-columns:58px 1fr;gap:10px;align-items:center;padding:9px 0;border-bottom:1px solid #f0f2f5}
    .dropdown-article img{width:58px;height:42px;object-fit:cover;border-radius:6px}
    .dropdown-article strong{font-size:13px;line-height:1.45}
    .mega-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
    .mega-card{padding:12px;border:1px solid #edf0f4;border-radius:10px;background:#fbfcfe;transition:.2s}
    .mega-card:hover{border-color:#abc1df;transform:translateY(-2px)}
    .mega-card-top{display:flex;align-items:center;gap:8px}
    .mega-card-top img,.mega-card>img{width:30px;height:30px;object-fit:contain;border-radius:6px}
    .mega-card strong{font-size:13px;display:block}
    .mega-card p{font-size:12px;color:var(--muted);margin:8px 0 0;line-height:1.5}
    .mega-stats{display:flex;gap:7px;flex-wrap:wrap;margin-top:9px;color:#667085;font-size:11px}
    .broker-rating{display:block;color:#b26b00;font-size:11px}
    .mega-categories{display:flex;gap:7px;flex-wrap:wrap;margin:0 0 15px}
    .mega-categories a{font-size:12px;padding:5px 9px;background:#f1f5f9;border-radius:20px;color:#344054}
    .mega-video>img,.mega-product>img{width:100%;height:70px;object-fit:cover;margin-bottom:8px}
    .mega-duration{font-size:11px;color:var(--theme)}
    .mega-footer{display:block;text-align:center;border-top:1px solid var(--line);margin:16px -22px -22px;padding:13px;color:var(--theme);font-size:13px;font-weight:700}
    .header-btns{display:flex;align-items:center;gap:10px}
    .account-entry{font-size:13px;color:var(--theme);white-space:nowrap}
    .open-account{background:var(--theme);color:#fff;border-radius:7px;padding:9px 15px;font-size:13px;font-weight:700;white-space:nowrap}
    .hamburger{display:none;border:0;background:transparent;padding:8px;cursor:pointer}
    .hamburger span{display:block;width:23px;height:2px;background:#172b4d;margin:5px 0;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(8,20,36,.5);z-index:40}
    .drawer-overlay.open{display:block}
    .mobile-drawer{position:fixed;top:0;right:-390px;width:min(390px,88vw);height:100vh;background:#fff;z-index:50;overflow:auto;transition:right .25s;box-shadow:-8px 0 30px rgba(0,0,0,.15)}
    .mobile-drawer.open{right:0}
    .drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:20px;border-bottom:1px solid var(--line);font-weight:700}
    .drawer-head a{color:var(--theme);font-size:14px}
    .drawer-close{border:0;background:transparent;font-size:28px;line-height:1;cursor:pointer;color:#667085}
    .drawer-menu{padding:10px 20px 30px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:14px 0;border:0;border-bottom:1px solid #edf0f4;background:none;text-align:left;font-weight:650;cursor:pointer}
    .drawer-toggle:after{content:"+";float:right;color:var(--theme);font-size:20px;font-weight:400}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:5px 0 8px 15px}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:8px 0;color:var(--muted);font-size:14px}
    .footer{background:#0d1b2a;color:#d6e0eb;margin-top:70px}
    .footer-main{padding:54px 0 42px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
    .footer .logo{color:#fff}
    .footer .logo img{background:#fff;border-radius:7px}
    .footer-brand p{font-size:13px;color:#aebdcd;max-width:380px;margin:18px 0}
    .footer-contact{display:grid;gap:6px;font-size:13px}
    .footer-social{margin-top:15px;color:#9fc0e6}
    .footer h3{font-size:14px;color:#fff;margin:4px 0 15px}
    .footer-links{display:grid;gap:9px;font-size:13px;color:#aebdcd}
    .footer-links a:hover{color:#fff}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:17px 0;font-size:12px;color:#96a8bb}
    .footer-bottom-inner{display:flex;justify-content:space-between;gap:20px}
    .video-detail-main{background:linear-gradient(180deg,#f5f8fc 0,#fff 430px);padding:58px 0 30px}
    .video-detail-main .breadcrumb{display:flex;gap:8px;align-items:center;color:#667085;font-size:13px;margin-bottom:28px}
    .video-detail-main .breadcrumb a{color:var(--theme)}
    .video-detail-main .video-heading{text-align:center;max-width:850px;margin:0 auto 32px}
    .video-detail-main .video-heading h1{font-size:clamp(30px,5vw,52px);line-height:1.18;letter-spacing:-.035em;margin:0 0 15px;color:#0d1b2a}
    .video-detail-main .video-heading .video-meta{display:flex;justify-content:center;flex-wrap:wrap;gap:15px;color:#667085;font-size:13px}
    .video-detail-main .video-stage{background:#0b1726;border-radius:18px;overflow:hidden;box-shadow:0 20px 50px rgba(13,27,42,.18);max-width:1020px;margin:auto}
    .video-detail-main .video-player{min-height:450px;display:flex;align-items:center;justify-content:center;background:radial-gradient(circle at 50% 45%,#1d4268 0,#0b1726 55%,#060d17 100%);position:relative}
    .video-detail-main .video-player video,.video-detail-main .video-player iframe{width:100%;height:100%;min-height:450px;border:0}
    .video-detail-main .video-cover{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.4}
    .video-detail-main .video-play{position:relative;width:78px;height:78px;border:1px solid rgba(255,255,255,.7);border-radius:50%;background:rgba(11,61,145,.9);color:#fff;font-size:27px;padding-left:7px;cursor:pointer}
    .video-detail-main .video-play:after{content:"";position:absolute;inset:-12px;border:1px solid rgba(159,192,230,.35);border-radius:50%}
    .video-detail-main .stage-caption{padding:18px 22px;color:#c7d5e4;font-size:13px;display:flex;justify-content:space-between;gap:15px}
    .video-detail-main .video-content-wrap{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:28px;max-width:1020px;margin:35px auto 0}
    .video-detail-main .video-content,.video-detail-main .video-side{background:#fff;border:1px solid var(--line);border-radius:14px;padding:25px;min-width:0}
    .video-detail-main .video-content h2,.video-detail-main .video-side h2{font-size:20px;margin:0 0 17px;color:#0d1b2a}
    .video-detail-main .video-content-body{min-width:0;max-width:100%;overflow-x:auto;color:#475467}
    .video-detail-main .video-content-body img,.video-detail-main .video-content-body table{max-width:100%}
    .video-detail-main .video-summary{font-size:16px;color:#475467;border-left:3px solid var(--theme);padding-left:15px;margin:0 0 23px}
    .video-detail-main .video-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px;padding-top:18px;border-top:1px solid var(--line)}
    .video-detail-main .video-tags a{font-size:12px;background:#eef4fc;color:var(--theme);padding:5px 10px;border-radius:20px}
    .video-detail-main .related-video{display:grid;grid-template-columns:84px 1fr;gap:10px;padding:12px 0;border-bottom:1px solid #edf0f4}
    .video-detail-main .related-video img{width:84px;height:58px;object-fit:cover;border-radius:7px}
    .video-detail-main .related-video strong{font-size:13px;line-height:1.4}
    .video-detail-main .related-video span{display:block;color:#98a2b3;font-size:11px;margin-top:4px}
    .video-detail-main .video-more{display:inline-flex;margin-top:18px;color:var(--theme);font-size:13px;font-weight:700}
    @media(max-width:1120px){
      .main-nav{display:none}.hamburger{display:block}.header-inner{height:68px}.account-entry{display:none}
      .video-detail-main .video-content-wrap{grid-template-columns:1fr 280px}
    }
    @media(max-width:760px){
      .container{width:min(100% - 28px,1180px)}
      .topbar-inner{height:auto;min-height:38px;padding:8px 0;align-items:flex-start;gap:8px}
      .topbar-contact{gap:10px;flex-direction:column;text-align:right;font-size:11px}
      .open-account{padding:8px 10px}
      .video-detail-main{padding:35px 0 15px}
      .video-detail-main .breadcrumb{margin-bottom:20px}
      .video-detail-main .video-heading h1{font-size:31px}
      .video-detail-main .video-player,.video-detail-main .video-player video,.video-detail-main .video-player iframe{min-height:230px}
      .video-detail-main .stage-caption{display:block}
      .video-detail-main .video-content-wrap{grid-template-columns:1fr;margin-top:22px}
      .video-detail-main .video-content,.video-detail-main .video-side{padding:19px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
      .footer-brand{grid-column:1/-1}
      .footer-bottom-inner{display:block}
      .footer-bottom-inner span{display:block;margin:4px 0}
    }
    @media(max-width:450px){.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}}