:root{
  --theme:#0B3D91;
  --ink:#10213f;
  --muted:#66738a;
  --line:#dce4ef;
  --soft:#f4f7fb;
  --white:#fff;
  --shadow:0 16px 42px rgba(16,33,63,.09);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#f7f9fc;color:var(--ink);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.7}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1180px,calc(100% - 40px));margin:0 auto}
.topbar{background:#071a3b;color:#dbe7fb;font-size:13px}
.topbar .container{min-height:38px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.topbar a{margin-left:20px;color:#dbe7fb}
.header{position:relative;z-index:20;background:#fff;border-bottom:1px solid #e8edf5}
.header-inner{min-height:78px;display:flex;align-items:center;gap:30px}
.logo{display:flex;align-items:center;gap:11px;white-space:nowrap;font-weight:800;color:var(--ink);font-size:19px}
.logo img{width:36px;height:36px;object-fit:contain;border-radius:9px}
.main-nav{flex:1}
.nav-list{display:flex;justify-content:center;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
.nav-item{position:relative}
.nav-link{display:block;padding:26px 15px;color:#253653;font-size:14px;font-weight:600;white-space:nowrap}
.nav-link:hover,.nav-link:focus{color:var(--theme)}
.has-arrow:after{content:"";display:inline-block;width:6px;height:6px;border-right:1px solid currentColor;border-bottom:1px solid currentColor;transform:rotate(45deg);margin:0 0 3px 8px}
.dropdown-panel,.mega-menu{position:absolute;top:calc(100% - 1px);left:50%;transform:translateX(-50%) translateY(8px);width:330px;padding:22px;background:#fff;border:1px solid #e3eaf4;border-radius:0 0 14px 14px;box-shadow:var(--shadow);opacity:0;visibility:hidden;transition:.2s ease;z-index:30}
.mega-menu{width:650px}
.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;transform:translateX(-50%) translateY(0)}
.panel-title{margin:0 0 13px;color:var(--theme);font-weight:800;font-size:15px}
.panel-list{display:grid;gap:8px}
.panel-list a{padding:7px 0;border-bottom:1px solid #edf1f7;font-size:13px;color:#33435f}
.panel-list a:hover,.mega-card:hover{color:var(--theme)}
.mega-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.mega-card{display:block;padding:12px;border:1px solid #e8edf5;border-radius:10px;background:#fbfcfe}
.mega-card strong{display:flex;align-items:center;gap:7px;font-size:13px;color:#243653}
.mega-card strong img{width:24px;height:24px;object-fit:contain;border-radius:5px}
.mega-card small{display:block;margin-top:5px;color:var(--muted);font-size:11px;line-height:1.5}
.mega-footer{display:inline-block;margin-top:16px;color:var(--theme);font-size:13px;font-weight:700}
.header-btns{display:flex;align-items:center;gap:10px;white-space:nowrap}
.member-btn,.open-btn{padding:9px 14px;border-radius:7px;font-size:13px;font-weight:700}
.member-btn{color:var(--theme);border:1px solid #cbd8ed}
.open-btn{color:#fff;background:var(--theme)}
.hamburger{display:none;border:0;background:none;padding:7px;cursor:pointer}
.hamburger span{display:block;width:23px;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(7,26,59,.48);opacity:0;visibility:hidden;transition:.25s;z-index:50}
.drawer-overlay.open{opacity:1;visibility:visible}
.mobile-drawer{position:fixed;top:0;right:0;width:min(390px,88vw);height:100vh;overflow:auto;background:#fff;transform:translateX(100%);transition:.28s ease;z-index:51;box-shadow:-12px 0 35px rgba(0,0,0,.15)}
.mobile-drawer.open{transform:translateX(0)}
.drawer-head{height:72px;padding:0 20px;display:flex;align-items:center;gap:16px;border-bottom:1px solid var(--line)}
.drawer-head span{font-weight:800;flex:1}
.drawer-head a{padding:6px 12px;background:var(--theme);color:#fff;border-radius:6px;font-size:13px}
.drawer-close{border:0;background:none;font-size:28px;color:#5d6a7c;cursor:pointer}
.drawer-menu{padding:14px 20px 30px}
.drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 0;border-bottom:1px solid #edf1f6;text-align:left;font-size:15px;color:var(--ink);background:none;border-top:0;border-left:0;border-right:0;cursor:pointer}
.drawer-toggle:after{content:"+";float:right;color:var(--theme);font-size:20px;line-height:1}
.drawer-toggle.active:after{content:"−"}
.drawer-submenu{display:none;padding:5px 0 8px 14px}
.drawer-submenu.open{display:block}
.drawer-submenu a{display:block;padding:8px 0;color:var(--muted);font-size:13px}
.footer{margin-top:70px;background:#071a3b;color:#d3def0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding:48px 0 38px}
.footer-brand strong{color:#fff;font-size:20px}
.footer p{margin:12px 0;color:#aebed6;font-size:13px}
.footer h3{margin:0 0 14px;color:#fff;font-size:15px}
.footer-grid>div:not(.footer-brand) a{display:block;margin:8px 0;color:#afc0d9;font-size:13px}
.footer-grid a:hover{color:#fff}
.footer-bottom{display:flex;justify-content:space-between;gap:20px;padding:18px 0;border-top:1px solid rgba(255,255,255,.14);color:#91a5c2;font-size:12px}
.tag-page{padding:64px 0 0}
.tag-heading{text-align:center;max-width:760px;margin:0 auto 42px}
.tag-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--theme);font-size:13px;font-weight:800;letter-spacing:.08em}
.tag-kicker:before{content:"";width:26px;height:2px;background:var(--theme)}
.tag-heading h1{margin:13px 0 10px;font-size:clamp(30px,5vw,52px);line-height:1.2;letter-spacing:-.04em}
.tag-heading h1 span{color:var(--theme)}
.tag-heading p{margin:0;color:var(--muted);font-size:15px}
.tag-summary{display:flex;justify-content:center;gap:22px;margin-top:20px;color:#5f6e85;font-size:13px}
.tag-summary strong{color:var(--theme);font-size:18px}
.tag-article-list{display:grid;gap:18px;max-width:980px;margin:0 auto}
.tag-article-card{display:grid;grid-template-columns:250px 1fr;gap:22px;padding:18px;background:#fff;border:1px solid #e5ebf3;border-radius:16px;box-shadow:0 8px 25px rgba(20,45,85,.05);transition:.2s}
.tag-article-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.tag-article-card figure{margin:0;height:165px;overflow:hidden;border-radius:11px;background:#e9eff8}
.tag-article-card figure img{width:100%;height:100%;object-fit:cover}
.article-body{min-width:0;display:flex;flex-direction:column}
.article-label{color:var(--theme);font-size:12px;font-weight:800}
.article-body h2{margin:5px 0 7px;font-size:21px;line-height:1.4}
.article-body h2 a:hover{color:var(--theme)}
.article-summary{margin:0;color:#65748a;font-size:14px;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;overflow:hidden}
.article-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:auto;padding-top:13px;color:#8995a7;font-size:12px}
.article-tags{margin-top:8px;color:var(--theme);font-size:12px}
.article-read{align-self:flex-start;margin-top:10px;color:var(--theme);font-size:13px;font-weight:800}
.pagination{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;margin:36px 0 0}
.pagination a{min-width:34px;padding:5px 10px;text-align:center;border:1px solid #d6e0ed;border-radius:6px;background:#fff;color:#566780;font-size:13px}
.pagination a:hover,.pagination a.active{background:var(--theme);border-color:var(--theme);color:#fff}
@media(max-width:1050px){
  .nav-link{padding-left:9px;padding-right:9px}
  .header-inner{gap:14px}
}
@media(max-width:820px){
  .topbar .container{padding:8px 0;align-items:flex-start;flex-direction:column;gap:2px}
  .topbar a{margin-left:0;margin-right:16px}
  .main-nav{display:none}
  .header-btns .member-btn,.header-btns .open-btn{display:none}
  .hamburger{display:block}
  .mega-menu,.dropdown-panel{display:none}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:26px}
  .tag-page{padding-top:42px}
}
@media(max-width:600px){
  .container{width:min(100% - 28px,1180px)}
  .tag-heading h1{font-size:34px}
  .tag-summary{gap:14px}
  .tag-article-card{grid-template-columns:1fr;padding:14px}
  .tag-article-card figure{height:190px}
  .article-body h2{font-size:19px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:22px}
  .footer-brand{grid-column:1/-1}
  .footer-bottom{flex-direction:column;gap:7px}
}