:root{--blue:#0B3D91;--ink:#10233f;--muted:#64748b;--line:#dbe5ef;--soft:#f4f8fc;--orange:#f47b20}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:Arial,"Microsoft YaHei",sans-serif;background:#f7fafc;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}.skip-link{position:absolute;left:-9999px}.skip-link:focus{left:20px;top:10px;z-index:99;background:#fff;padding:8px}
.topbar{background:#082b68;color:#dceaff;font-size:13px}.topbar-inner{min-height:36px;display:flex;align-items:center;justify-content:space-between}.topbar-contact{display:flex;gap:22px}.header{background:#fff;border-bottom:1px solid var(--line);position:relative;z-index:20}.header-inner{height:76px;display:flex;align-items:center;gap:28px}.logo{display:flex;align-items:center;gap:10px;font-weight:800;color:var(--blue);white-space:nowrap}.logo img{width:38px;height:38px;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:block;padding:26px 13px;font-size:15px;font-weight:700;white-space:nowrap}.nav-link:hover,.nav-link:focus{color:var(--orange)}.has-arrow:after{content:"⌄";font-size:12px;margin-left:6px}.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 #12345a1c;border-radius:0 0 12px 12px;padding:20px;opacity:0;visibility:hidden;pointer-events:none;transition:.2s;z-index:30}.dropdown-panel{width:310px}.mega-menu{width:760px}.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-title,.mega-heading{display:flex;justify-content:space-between;gap:16px;padding-bottom:13px;border-bottom:1px solid var(--line)}.mega-heading strong{font-size:16px}.mega-heading span{font-size:12px;color:var(--muted)}.dropdown-article{display:block;padding:10px 0;border-bottom:1px solid #edf2f7;font-size:14px}.dropdown-more,.mega-footer{display:block;color:var(--blue);font-weight:700;margin-top:14px;font-size:13px}.mega-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:15px}.mega-card{display:flex;gap:10px;padding:10px;border:1px solid #e6edf5;border-radius:8px}.mega-card img{width:42px;height:42px;object-fit:contain;border-radius:6px}.mega-card-content{min-width:0}.mega-card strong{display:block;font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.mega-card p{font-size:12px;color:var(--muted);margin:2px 0}.mega-card-meta{display:flex;gap:8px;color:var(--muted);font-size:11px;flex-wrap:wrap}.mega-categories{display:flex;flex-wrap:wrap;gap:7px;margin-top:14px}.mega-categories a{padding:4px 10px;background:var(--soft);border-radius:20px;color:var(--blue);font-size:12px}.header-btns{display:flex;align-items:center;gap:12px;font-size:14px}.header-btns>a{padding:9px 14px;background:var(--blue);border-radius:6px;color:#fff;font-weight:700}.hamburger{display:none;border:0;background:transparent;padding:8px;cursor:pointer}.hamburger span{display:block;width:24px;height:2px;background:var(--ink);margin:5px}
.drawer-overlay{display:none}.mobile-drawer{display:none}
.category-page{padding:56px 0 80px}.page-hero{text-align:center;max-width:760px;margin:0 auto 38px}.eyebrow{color:var(--orange);font-weight:800;letter-spacing:.12em;font-size:13px}.page-hero h1{font-size:clamp(30px,4vw,48px);line-height:1.2;margin:10px 0 14px;color:var(--blue)}.page-hero p{color:var(--muted);margin:0}.category-intro{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 26px;margin-bottom:28px;box-shadow:0 8px 24px #0b3d9109}.category-intro strong{color:var(--blue)}.article-list{display:grid;gap:18px}.article-card{display:grid;grid-template-columns:300px 1fr;gap:24px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;box-shadow:0 8px 24px #10233f08}.article-cover{height:190px;width:100%;object-fit:cover;border-radius:9px;background:#dce8f4}.article-body{min-width:0}.article-label{display:inline-block;color:var(--orange);font-weight:700;font-size:12px;background:#fff1e8;padding:3px 9px;border-radius:20px}.article-body h2{font-size:22px;line-height:1.35;margin:10px 0}.article-summary{color:#52647b;margin:0 0 13px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.article-meta{display:flex;gap:15px;flex-wrap:wrap;color:var(--muted);font-size:13px;margin-bottom:12px}.article-tags{color:var(--blue);font-size:13px;margin-bottom:14px}.read-more{display:inline-flex;color:var(--blue);font-weight:800;border-bottom:2px solid var(--orange);padding-bottom:2px}.pagination{display:flex;justify-content:center;gap:8px;margin-top:35px;flex-wrap:wrap}.pagination a{background:#fff;border:1px solid var(--line);padding:8px 13px;border-radius:6px;color:var(--blue)}.pagination a.active,.pagination a:hover{background:var(--blue);color:#fff}
.footer{background:#071d3d;color:#d9e6f8;padding-top:48px}.footer-main{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:35px}.footer .logo{color:#fff}.footer-brand p{color:#aebed4;font-size:13px;max-width:330px}.footer h3{font-size:15px;color:#fff;margin:3px 0 15px}.footer-links{display:grid;gap:8px;color:#b8c8dd;font-size:13px}.footer-links a:hover{color:#fff}.footer-contact{display:grid;gap:10px;color:#b8c8dd;font-size:13px}.footer-social{display:grid;gap:5px}.footer-bottom{border-top:1px solid #294262;display:flex;justify-content:space-between;gap:20px;padding:18px 0;color:#91a7c2;font-size:12px}.footer-bottom-links{display:flex;gap:18px}
@media(max-width:980px){.main-nav{display:none}.header-btns{margin-left:auto}.hamburger{display:block}.mobile-drawer{display:block;position:fixed;right:-360px;top:0;width:min(350px,88vw);height:100vh;background:#fff;z-index:60;overflow:auto;transition:.25s;box-shadow:-10px 0 30px #0002}.mobile-drawer.open{right:0}.drawer-overlay{display:block;position:fixed;inset:0;background:#061b3899;z-index:50;opacity:0;visibility:hidden;transition:.25s}.drawer-overlay.open{opacity:1;visibility:visible}.drawer-head{display:flex;align-items:center;gap:12px;padding:22px;border-bottom:1px solid var(--line);font-weight:700}.drawer-head>a{margin-left:auto;color:var(--blue)}.drawer-close{border:0;background:transparent;font-size:28px;color:var(--muted)}.drawer-menu{padding:12px 20px}.drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 0;text-align:left;background:none;border:0;border-bottom:1px solid #edf2f7;font:inherit;color:var(--ink)}.drawer-toggle:after{content:"＋";float:right}.drawer-toggle.active:after{content:"－"}.drawer-submenu{display:none;padding:5px 12px;background:var(--soft)}.drawer-submenu.open{display:block}.drawer-submenu a{display:block;padding:8px 0;font-size:14px;color:var(--muted)}}
@media(max-width:700px){.container{width:min(100% - 28px,1180px)}.topbar-inner{padding:7px 0;display:block}.topbar-contact{margin-top:3px;gap:12px}.header-inner{height:66px}.header-btns>a{display:none}.category-page{padding-top:35px}.article-card{grid-template-columns:1fr;gap:16px}.article-cover{height:210px}.article-body h2{font-size:20px}.footer-main{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom-links{margin-top:8px;display:grid;gap:5px}.mega-menu{width:calc(100vw - 28px)}}