:root{--blue:#0B3D91;--ink:#172235;--muted:#64748b;--line:#e5eaf2;--bg:#f5f7fb;--white:#fff;--gold:#d99a22}
    *{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--bg);font-family:Arial,"Microsoft YaHei","微软雅黑",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:#101a2c;color:#c9d3e5;font-size:13px}.topbar-inner{min-height:36px;display:flex;align-items:center;justify-content:space-between}.topbar-contact{display:flex;gap:22px}.topbar a:hover{color:#fff}
    .header{position:relative;z-index:20;background:#fff;border-bottom:1px solid var(--line)}.header-inner{height:76px;display:flex;align-items:center;gap:28px}.logo{display:inline-flex;align-items:center;gap:10px;font-size:20px;font-weight:800;white-space:nowrap;color:var(--blue)}.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:block;padding:27px 13px;font-size:15px;font-weight:600;white-space:nowrap}.nav-link:hover{color:var(--blue)}.has-arrow:after{content:"⌄";font-size:12px;margin-left:5px;color:#8390a4}.dropdown-panel,.mega-menu{position:absolute;top:calc(100% + 1px);left:50%;transform:translateX(-50%);opacity:0;visibility:hidden;pointer-events:none;background:#fff;border:1px solid var(--line);box-shadow:0 18px 45px #18243d1c;border-radius:0 0 12px 12px;transition:.2s;z-index:30}.dropdown-panel{width:260px;padding:12px}.dropdown-panel a{display:block;padding:9px 12px;font-size:14px}.dropdown-panel a:hover{background:#f0f5ff;color:var(--blue)}.dropdown-all,.mega-footer{border-top:1px solid var(--line);color:var(--blue)!important;font-weight:700!important;margin-top:6px;padding-top:13px!important}.mega-menu{width:720px;padding:20px}.mega-menu-video,.mega-menu-products{width:820px}.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}.mega-menu:before,.dropdown-panel:before{content:"";position:absolute;top:-16px;left:0;right:0;height:16px}.mega-title{font-size:14px;color:var(--muted);font-weight:700;margin:0 0 12px}.mega-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.mega-card{display:flex;gap:10px;padding:10px;border:1px solid #edf0f5;border-radius:9px;min-width:0}.mega-card:hover{border-color:#a9bee8;background:#f8faff}.mega-card img{width:42px;height:42px;border-radius:7px;object-fit:cover;flex:none}.mega-card span{min-width:0}.mega-card strong{display:block;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.mega-card p,.mega-card small{display:block;margin:2px 0;color:var(--muted);font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.mega-categories{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}.mega-categories a{padding:5px 10px;background:#f1f5fb;border-radius:20px;font-size:12px}.mega-footer{display:block;margin-top:14px;padding-bottom:0;text-align:right}
    .header-btns{display:flex;align-items:center;gap:12px}.member-entry{font-size:13px;color:var(--blue);font-weight:700}.header-account{padding:9px 15px;border-radius:7px;background:var(--blue);color:#fff;font-size:13px;font-weight:700}.hamburger{display:none;border:0;background:transparent;padding:7px;cursor:pointer}.hamburger span{display:block;width:24px;height:2px;background:#1c2a40;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:#0e1728a6;opacity:0;visibility:hidden;transition:.2s;z-index:40}.drawer-overlay.open{opacity:1;visibility:visible}.mobile-drawer{position:fixed;top:0;right:0;width:min(390px,88%);height:100vh;background:#fff;transform:translateX(100%);transition:.25s;z-index:41;overflow:auto}.mobile-drawer.open{transform:translateX(0)}.drawer-head{display:flex;align-items:center;gap:15px;padding:18px 20px;border-bottom:1px solid var(--line);color:var(--blue);font-weight:700}.drawer-head a{margin-left:auto;background:var(--blue);color:#fff;padding:5px 12px;border-radius:5px;font-size:13px}.drawer-close{font-size:26px;border:0;background:transparent;color:#64748b;cursor:pointer}.drawer-menu{padding:10px 20px}.drawer-link,.drawer-toggle{display:block;width:100%;padding:14px 0;border:0;border-bottom:1px solid #eef1f5;background:transparent;text-align:left;font-size:15px;color:var(--ink);cursor:pointer}.drawer-toggle:after{content:"＋";float:right;color:var(--muted)}.drawer-toggle.active:after{content:"－"}.drawer-submenu{max-height:0;overflow:hidden;padding-left:15px;transition:.25s}.drawer-submenu.open{max-height:600px;padding-top:5px;padding-bottom:5px}.drawer-submenu a{display:block;padding:8px 0;color:var(--muted);font-size:14px}
    .footer{background:#101a2c;color:#b9c4d5;margin-top:70px}.footer-main{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:42px;padding:54px 0 38px}.footer .logo{color:#fff}.footer-brand p{font-size:13px;line-height:1.9;margin-top:20px}.footer h3{font-size:15px;color:#fff;margin:3px 0 16px}.footer-links{display:grid;gap:8px;font-size:13px}.footer-links a:hover,.footer-contact a:hover{color:#fff}.footer-contact p{font-size:13px;margin:7px 0}.footer-bottom{border-top:1px solid #ffffff18;display:flex;justify-content:space-between;gap:20px;padding:17px 0;font-size:12px;color:#8794a8}
    .category-page{padding:52px 0 10px}.page-heading{text-align:center;max-width:760px;margin:0 auto 36px}.eyebrow{display:inline-block;color:var(--blue);font-size:13px;font-weight:800;letter-spacing:2px;margin-bottom:8px}.page-heading h1{font-size:clamp(30px,4vw,46px);line-height:1.2;margin:0 0 14px;color:#142442}.page-heading p{margin:0;color:var(--muted);font-size:16px}.category-intro{background:#fff;border:1px solid var(--line);border-radius:16px;padding:25px 30px;margin-bottom:28px;display:flex;align-items:center;justify-content:space-between;gap:25px}.category-intro h2{margin:0 0 5px;font-size:20px}.category-intro p{margin:0;color:var(--muted);font-size:14px}.category-badge{flex:none;padding:10px 17px;border-radius:30px;background:#edf3ff;color:var(--blue);font-size:13px;font-weight:700}
    .article-list{display:grid;gap:18px}.article-card{display:grid;grid-template-columns:300px minmax(0,1fr);gap:25px;background:#fff;border:1px solid var(--line);border-radius:15px;padding:14px;overflow:hidden;transition:.2s}.article-card:hover{transform:translateY(-2px);box-shadow:0 12px 30px #1b315d12;border-color:#b9cbed}.article-cover{height:205px;border-radius:10px;overflow:hidden;background:#e8edf5}.article-cover img{width:100%;height:100%;object-fit:cover}.article-body{min-width:0;padding:5px 8px 5px 0}.article-kicker{font-size:12px;color:var(--blue);font-weight:700;margin:0 0 6px}.article-title{font-size:21px;line-height:1.4;margin:0 0 9px;color:#172b4d}.article-title a:hover{color:var(--blue)}.article-summary{color:#68768b;font-size:14px;line-height:1.8;margin:0 0 13px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.article-meta{display:flex;flex-wrap:wrap;gap:13px;color:#8a96a8;font-size:12px;margin-bottom:15px}.article-tags{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:13px}.article-tags span{padding:3px 8px;border-radius:4px;background:#f1f4f8;color:#69778d;font-size:11px}.read-more{display:inline-flex;align-items:center;color:var(--blue);font-size:13px;font-weight:800}.read-more:after{content:"→";margin-left:6px}.pagination{display:flex;justify-content:center;gap:8px;margin:34px 0 10px;flex-wrap:wrap}.pagination a{min-width:36px;text-align:center;padding:7px 11px;border:1px solid var(--line);background:#fff;border-radius:6px;font-size:13px}.pagination a:hover,.pagination a.active{background:var(--blue);border-color:var(--blue);color:#fff}
    @media(max-width:1050px){.main-nav{display:none}.header-btns{margin-left:auto}.hamburger{display:block}.footer-main{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:650px){.container{width:min(100% - 28px,1180px)}.topbar-inner{padding:7px 0;display:block}.topbar-contact{gap:12px;margin-top:2px}.header-inner{height:65px}.logo{font-size:17px}.header-account,.member-entry{display:none}.category-page{padding-top:32px}.page-heading{margin-bottom:25px}.page-heading h1{font-size:30px}.category-intro{display:block;padding:20px;margin-bottom:18px}.category-badge{display:inline-block;margin-top:14px}.article-card{grid-template-columns:1fr;gap:13px;padding:11px}.article-cover{height:190px}.article-body{padding:0 5px 7px}.article-title{font-size:18px}.article-summary{-webkit-line-clamp:4}.footer-main{grid-template-columns:1fr;gap:25px;padding:38px 0 28px}.footer-bottom{display:block;line-height:2}.footer-bottom span{display:block}.mega-menu,.dropdown-panel{display:none}}