:root{--theme:#0B3D91;--ink:#172033;--muted:#697386;--line:#e3e8f0;--surface:#fff;--soft:#f4f7fb;--shadow:0 18px 50px rgba(20,42,78,.09)}
    *{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","PingFang TC",Arial,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}
    .skip-link{position:absolute;left:-9999px;top:10px;background:var(--theme);color:#fff;padding:8px 14px;z-index:1000}
    .skip-link:focus{left:16px}
    .topbar{background:#10213d;color:#dbe7fa;font-size:13px}
    .topbar-inner{min-height:38px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .topbar-contact{display:flex;gap:18px;flex-wrap:wrap}
    .topbar a:hover{color:#fff}
    .header{position:relative;z-index:20;background:#fff;border-bottom:1px solid var(--line)}
    .header-inner{min-height:78px;display:flex;align-items:center;gap:25px}
    .logo{display:inline-flex;align-items:center;gap:10px;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{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;gap:6px;padding:26px 13px;font-size:15px;font-weight:600;white-space:nowrap}
    .has-arrow:after{content:"";width:6px;height:6px;border-right:1px solid currentColor;border-bottom:1px solid currentColor;transform:rotate(45deg);margin-top:-4px}
    .nav-link:hover{color:var(--theme)}
    .dropdown-panel,.mega-menu{position:absolute;top:calc(100% + 1px);left:50%;transform:translateX(-50%) translateY(8px);opacity:0;visibility:hidden;pointer-events:none;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);transition:.2s ease;z-index:30}
    .dropdown-panel{width:300px;padding:18px}
    .mega-menu{width:760px;padding:22px}
    .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:translateX(-50%) translateY(0)}
    .dropdown-panel:before,.mega-menu:before{content:"";position:absolute;left:0;right:0;height:12px;top:-12px}
    .dropdown-title{font-weight:800;margin-bottom:10px}
    .dropdown-panel>a:not(.dropdown-all){display:block;padding:8px 2px;border-bottom:1px solid #edf0f5;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:14px;padding-top:13px;border-top:1px solid var(--line);font-weight:700;color:var(--theme)}
    .mega-top{display:flex;justify-content:space-between;gap:16px;align-items:flex-start;margin-bottom:17px}
    .mega-top strong{display:block;font-size:17px}
    .mega-top span{display:block;color:var(--muted);font-size:13px;margin-top:3px}
    .text-link{color:var(--theme);font-weight:700;font-size:14px;white-space:nowrap}
    .mega-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
    .mega-card{display:flex;gap:10px;padding:11px;border:1px solid #e7ebf2;border-radius:10px;min-width:0}
    .mega-card:hover{border-color:#9eb7dd;background:#f7faff}
    .mega-card>img{width:38px;height:38px;object-fit:contain;flex:none}
    .mega-card-body{min-width:0}
    .mega-card-body strong{font-size:13px;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .mega-card-body p{font-size:12px;color:var(--muted);margin:2px 0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
    .mega-meta{display:flex;flex-wrap:wrap;gap:4px 8px;color:var(--muted);font-size:11px}
    .mega-categories{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 17px}
    .mega-categories a{padding:5px 10px;background:#f0f4fa;border-radius:99px;color:var(--theme);font-size:12px}
    .video-mega-card{display:block}
    .video-mega-card>img{width:100%;height:78px;object-fit:cover;margin-bottom:7px;border-radius:7px}
    .video-duration{font-size:11px;color:var(--theme)}
    .header-btns{display:flex;align-items:center;gap:10px}
    .header-member{font-size:14px;color:var(--theme);font-weight:700}
    .account-btn{padding:9px 16px;border-radius:8px;background:var(--theme);color:#fff;font-size:14px;font-weight:700}
    .account-btn:hover{background:#082d6d}
    .hamburger{display:none;border:0;background:transparent;padding:7px;cursor:pointer}
    .hamburger span{display:block;width:24px;height:2px;background:var(--ink);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{position:fixed;inset:0;background:rgba(9,22,43,.48);opacity:0;visibility:hidden;transition:.2s;z-index:40}
    .drawer-overlay.open{opacity:1;visibility:visible}
    .mobile-drawer{position:fixed;right:0;top:0;bottom:0;width:min(380px,88vw);background:#fff;transform:translateX(100%);transition:.25s;z-index:41;overflow:auto;box-shadow:-15px 0 45px rgba(0,0,0,.15)}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{display:flex;align-items:center;gap:12px;padding:20px;border-bottom:1px solid var(--line);font-weight:700}
    .drawer-head>a{margin-left:auto;color:var(--theme);font-size:14px}
    .drawer-close{border:0;background:#eef3fa;border-radius:50%;width:32px;height:32px;cursor:pointer;font-size:22px;line-height:1}
    .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:none;text-align:left;color:var(--ink);font-weight:650;cursor:pointer}
    .drawer-toggle:after{content:"＋";float:right;color:var(--theme)}
    .drawer-toggle.active:after{content:"－"}
    .drawer-submenu{display:none;padding:4px 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)}
    .footer{background:#101d33;color:#d7e0ef;margin-top:80px}
    .footer-main{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:45px;padding:58px 0 45px}
    .footer .logo{color:#fff;margin-bottom:15px}
    .footer-brand p{color:#aab8cb;font-size:14px;max-width:350px;margin:0 0 17px}
    .footer-social{color:#fff}
    .footer-col h3{font-size:15px;color:#fff;margin:4px 0 16px}
    .footer-links{display:grid;gap:8px}
    .footer-links a,.footer-contact a{color:#aab8cb;font-size:14px}
    .footer-links a:hover,.footer-contact a:hover{color:#fff}
    .footer-contact{display:grid;gap:5px;font-size:13px}
    .footer-contact span{color:#71839e;margin-top:5px}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;gap:20px;padding:20px 0;color:#8fa0b8;font-size:13px}
    .footer-bottom-links{display:flex;gap:18px}
    .footer-bottom a:hover{color:#fff}
    .tag-index-page{padding:0 0 20px}
    .tag-index-hero{background:linear-gradient(135deg,#eef4fc 0%,#fff 70%);border-bottom:1px solid #e2e9f3;padding:76px 0 70px;text-align:center}
    .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:22px;height:2px;background:var(--theme)}
    .tag-index-hero h1{font-size:clamp(34px,5vw,58px);line-height:1.15;margin:16px 0 14px;letter-spacing:-.04em}
    .tag-index-hero p{max-width:650px;margin:0 auto;color:var(--muted);font-size:16px}
    .tag-index-content{padding:52px 0}
    .section-heading{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:22px}
    .section-heading h2{font-size:25px;margin:0;letter-spacing:-.02em}
    .section-heading p{margin:0;color:var(--muted);font-size:14px}
    .tag-cloud-panel{background:#fff;border:1px solid var(--line);border-radius:18px;padding:28px;box-shadow:0 10px 35px rgba(24,50,90,.05)}
    .tag-cloud{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:12px 14px}
    .tag-cloud a{display:inline-flex;align-items:center;gap:7px;border:1px solid #dfe7f2;background:#f8faff;border-radius:999px;padding:10px 16px;color:#28466f;transition:.2s}
    .tag-cloud a:hover{background:var(--theme);border-color:var(--theme);color:#fff;transform:translateY(-2px);box-shadow:0 8px 18px rgba(11,61,145,.18)}
    .tag-cloud a:nth-child(3n){font-size:18px;padding:12px 19px}
    .tag-cloud a:nth-child(4n){background:#edf4ff;color:var(--theme)}
    .tag-count{font-size:12px;color:#8492a8}
    .tag-cloud a:hover .tag-count{color:#dbe8ff}
    .tag-index-note{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:22px}
    .note-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px}
    .note-card strong{display:block;margin-bottom:5px}
    .note-card p{margin:0;color:var(--muted);font-size:14px}
    @media(max-width:1050px){
      .main-nav{display:none}.hamburger{display:block}.header-btns{margin-left:auto}.mega-menu{width:min(760px,calc(100vw - 30px))}
    }
    @media(max-width:700px){
      .container{width:min(100% - 28px,1180px)}
      .topbar-inner{padding:7px 0;align-items:flex-start;flex-direction:column;gap:2px}
      .header-inner{min-height:68px}.header-member{display:none}.account-btn{padding:8px 11px;font-size:13px}
      .tag-index-hero{padding:54px 0 48px}.tag-index-hero h1{font-size:38px}
      .tag-index-content{padding:35px 0}.tag-cloud-panel{padding:20px 14px}.tag-cloud{gap:9px}
      .tag-cloud a{font-size:13px;padding:8px 12px}.tag-cloud a:nth-child(3n){font-size:15px;padding:9px 13px}
      .section-heading{display:block}.section-heading p{margin-top:5px}
      .tag-index-note{grid-template-columns:1fr}
      .footer-main{grid-template-columns:1fr 1fr;gap:28px;padding:40px 0}
      .footer-brand{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom-links{margin-top:9px}
    }
    @media(max-width:430px){.footer-main{grid-template-columns:1fr}.footer-brand{grid-column:auto}.topbar-contact{gap:10px;font-size:12px}}