:root{--primary:#0B3D91;--ink:#17243a;--muted:#69778d;--line:#e3e9f2;--soft:#f4f7fb;--white:#fff;--shadow:0 16px 40px rgba(17,43,82,.1)}
    *{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:Arial,"Microsoft YaHei","微软雅黑",sans-serif;background:#f8faff;line-height:1.65}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{width:min(1180px,calc(100% - 40px));margin:auto}
    .topbar{background:#112544;color:#dce7f8;font-size:13px}.topbar .container{height:38px;display:flex;align-items:center;justify-content:space-between}.topbar-links{display:flex;gap:22px}.topbar a:hover{color:#fff}
    .header{height:78px;background:#fff;border-bottom:1px solid var(--line);position:relative;z-index:20}.header-inner{height:100%;display:flex;align-items:center;gap:34px}.logo{display:flex;align-items:center;gap:10px;white-space:nowrap;color:var(--primary);font-weight:800;font-size:19px}.logo img{width:34px;height:34px;object-fit:contain}.main-nav{margin-left:auto}.nav-list{list-style:none;display:flex;gap:4px;margin:0;padding:0}.nav-item{position:relative}.nav-link{display:block;padding:27px 14px;font-size:15px;font-weight:600}.nav-link:hover,.nav-link:focus{color:var(--primary)}.has-arrow:after{content:"⌄";font-size:12px;margin-left:6px;color:#8491a4}
    .dropdown-panel,.mega-menu{position:absolute;top:calc(100% - 1px);left:50%;transform:translateX(-50%);background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:0 0 14px 14px;opacity:0;visibility:hidden;pointer-events:none;transition:.2s;z-index:30}.dropdown-panel{width:250px;padding:12px}.dropdown-panel a{display:block;padding:9px 12px;border-radius:8px;font-size:14px}.dropdown-panel a:hover{background:var(--soft);color:var(--primary)}.mega-menu{width:min(760px,calc(100vw - 30px));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}.mega-section-title{margin:0 0 12px;color:var(--primary);font-size:14px;font-weight:700}.mega-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.mega-card{display:flex;gap:10px;padding:10px;border:1px solid var(--line);border-radius:10px;background:#fbfcff}.mega-card:hover{border-color:#a9c0e9}.mega-card img{width:42px;height:42px;border-radius:8px;object-fit:cover;background:#edf2fa}.mega-card span{min-width:0}.mega-card strong,.mega-card small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mega-card strong{font-size:13px}.mega-card small{font-size:11px;color:var(--muted)}.mega-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.mega-links a{color:var(--primary);font-size:13px;padding:5px 10px;background:#edf3ff;border-radius:20px}
    .header-btns{display:flex;align-items:center;gap:14px}.member-btn{background:var(--primary);color:#fff;border-radius:8px;padding:9px 16px;font-size:13px;font-weight:700}.hamburger{display:none;border:0;background:none;padding:8px;cursor:pointer}.hamburger span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;transition:.2s}
    .drawer-overlay{display:none;position:fixed;inset:0;background:rgba(11,25,48,.48);z-index:40}.drawer-overlay.open{display:block}.mobile-drawer{position:fixed;right:0;top:0;width:min(360px,88vw);height:100vh;background:#fff;z-index:50;transform:translateX(100%);transition:.25s;overflow:auto;box-shadow:-15px 0 40px rgba(0,0,0,.15)}.mobile-drawer.open{transform:translateX(0)}.drawer-head{display:flex;align-items:center;gap:16px;padding:22px;border-bottom:1px solid var(--line);font-weight:700;color:var(--primary)}.drawer-head>a{margin-left:auto;background:var(--primary);color:#fff;padding:6px 12px;border-radius:6px;font-size:13px}.drawer-close{border:0;background:none;font-size:28px;color:var(--muted);cursor:pointer}.drawer-menu{padding:12px 22px}.drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 0;border:0;border-bottom:1px solid var(--line);background:none;text-align:left;font:inherit;color:var(--ink);cursor:pointer}.drawer-toggle:after{content:"+";float:right;color:var(--primary)}.drawer-toggle.active:after{content:"−"}.drawer-submenu{max-height:0;overflow:hidden;transition:.25s;padding-left:15px}.drawer-submenu.open{max-height:600px;padding-top:5px;padding-bottom:5px}.drawer-submenu a{display:block;padding:7px 0;font-size:14px;color:var(--muted)}
    .footer{margin-top:70px;background:#10233f;color:#ced9e9;padding:48px 0 18px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px}.footer-brand strong{font-size:20px;color:#fff}.footer p{margin:10px 0;font-size:13px;color:#aebed4}.footer h3{font-size:15px;color:#fff;margin:0 0 14px}.footer-grid>div:not(.footer-brand) a{display:block;color:#c6d4e6;font-size:13px;margin:7px 0}.footer-grid a:hover{color:#fff}.footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:32px;padding-top:17px;display:flex;justify-content:space-between;font-size:12px;color:#9eb0c9}
    .category-page{padding:58px 0 10px}.page-intro{text-align:center;max-width:760px;margin:0 auto 38px}.eyebrow{display:inline-block;color:var(--primary);background:#e7effd;border-radius:30px;padding:5px 14px;font-size:13px;font-weight:700}.page-intro h1{font-size:clamp(30px,4vw,48px);line-height:1.2;margin:15px 0 12px;color:#13294d}.page-intro p{color:var(--muted);margin:0}.article-list{display:grid;gap:20px;max-width:980px;margin:0 auto}.article-card{display:grid;grid-template-columns:300px 1fr;background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:0 8px 24px rgba(24,52,92,.06);transition:.2s}.article-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.article-cover{min-height:210px;background:#e8eef7}.article-cover img{width:100%;height:100%;object-fit:cover}.article-body{padding:22px 25px}.article-meta{display:flex;flex-wrap:wrap;gap:10px;color:#7b8798;font-size:12px;margin-bottom:9px}.article-category{color:var(--primary);font-weight:700}.article-body h2{font-size:22px;line-height:1.35;margin:0 0 10px}.article-body h2 a:hover{color:var(--primary)}.article-summary{color:var(--muted);font-size:14px;margin:0 0 14px;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;overflow:hidden}.article-extra{display:flex;flex-wrap:wrap;gap:10px;color:#7c8899;font-size:12px}.article-tags{color:var(--primary)}.read-more{display:inline-block;margin-top:16px;color:var(--primary);font-size:13px;font-weight:700}.read-more:after{content:" →";transition:.2s}.read-more:hover:after{margin-left:4px}.pagination{display:flex;justify-content:center;gap:8px;margin:38px 0}.pagination a{min-width:36px;text-align:center;padding:7px 11px;border:1px solid var(--line);border-radius:7px;background:#fff;font-size:13px}.pagination a:hover,.pagination a.active{background:var(--primary);border-color:var(--primary);color:#fff}
    @media(max-width:900px){.main-nav{display:none}.hamburger{display:block}.header-btns{margin-left:auto}.footer-grid{grid-template-columns:repeat(2,1fr)}.nav-list{display:none}}
    @media(max-width:620px){.container{width:min(100% - 28px,1180px)}.topbar .container{height:auto;min-height:38px;padding:7px 0;align-items:flex-start;gap:8px}.topbar-links{gap:8px;flex-direction:column;text-align:right}.member-btn{display:none}.header{height:68px}.header-inner{gap:10px}.logo{font-size:16px}.logo img{width:29px;height:29px}.category-page{padding-top:38px}.page-intro{margin-bottom:25px}.article-card{display:block}.article-cover{height:190px}.article-body{padding:18px}.article-body h2{font-size:19px}.footer-grid{grid-template-columns:1fr 1fr;gap:24px 15px}.footer-brand{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin:5px 0}.mega-grid{grid-template-columns:1fr}}