:root{--theme:#0B3D91;--ink:#172033;--muted:#687386;--line:#e5e9ef;--soft:#f5f7fa;--white:#fff;--accent:#c99a45}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:#fff;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}
    button{font:inherit}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}
    .topbar{background:#11233f;color:#dce5f2;font-size:13px}
    .topbar .container{min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .topbar-info{display:flex;gap:20px}
    .topbar a:hover{color:#fff}
    .header{position:relative;background:#fff;border-bottom:1px solid var(--line);z-index:20}
    .header-inner{min-height:76px;display:flex;align-items:center;gap:32px}
    .logo{display:flex;align-items:center;gap:10px;white-space:nowrap;font-size:19px;font-weight:700;color:var(--theme)}
    .logo img{width:34px;height:34px;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:flex;align-items:center;min-height:76px;padding:0 13px;color:#29364b;font-size:15px;white-space:nowrap}
    .nav-link:hover,.nav-link:focus{color:var(--theme)}
    .has-arrow:after{content:"";width:6px;height:6px;margin:0 0 4px 8px;border-right:1px solid currentColor;border-bottom:1px solid currentColor;transform:rotate(45deg)}
    .dropdown-panel,.mega-menu{position:absolute;top:100%;left:50%;width:300px;padding:22px;background:#fff;border:1px solid var(--line);box-shadow:0 18px 40px rgba(24,43,71,.14);opacity:0;visibility:hidden;transform:translate(-50%,8px);transition:.2s;z-index:30}
    .mega-menu{width:600px}
    .nav-item:after{content:"";position:absolute;left:0;right:0;top:100%;height:12px}
    .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:translate(-50%,0)}
    .mega-heading{margin:0 0 12px;color:var(--theme);font-size:13px;font-weight:700;letter-spacing:.04em}
    .mega-list,.broker-mini,.video-mini,.product-mini{display:grid;gap:8px}
    .mega-list a,.broker-mini a,.video-mini a,.product-mini a{display:block;padding:8px 10px;background:var(--soft);font-size:13px;line-height:1.5}
    .mega-list a:hover,.broker-mini a:hover,.video-mini a:hover,.product-mini a:hover{background:#edf3fb;color:var(--theme)}
    .mega-list img{display:inline-block;width:20px;height:20px;vertical-align:middle;object-fit:contain}
    .mega-grid{display:grid;grid-template-columns:1fr 1fr;gap:25px}
    .mega-grid p:not(.mega-heading){margin:0 0 18px;color:var(--muted);font-size:13px}
    .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}
    .member-btn,.open-btn{padding:9px 13px;border:1px solid var(--theme);font-size:13px;white-space:nowrap}
    .member-btn{color:var(--theme)}
    .open-btn{background:var(--theme);color:#fff}
    .hamburger{display:none;width:42px;height:40px;border:1px solid var(--line);background:#fff;padding:9px;cursor:pointer}
    .hamburger span{display:block;height:2px;margin:4px 0;background:var(--theme);transition:.2s}
    .hamburger.active span:nth-child(1){transform:translateY(6px) rotate(45deg)}
    .hamburger.active span:nth-child(2){opacity:0}
    .hamburger.active span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
    .drawer-overlay{position:fixed;inset:0;background:rgba(13,27,48,.46);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,88vw);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:14px;padding:18px 20px;border-bottom:1px solid var(--line);font-weight:700}
    .drawer-head span{margin-right:auto;color:var(--theme)}
    .drawer-head a{padding:6px 10px;background:var(--theme);color:#fff;font-size:13px}
    .drawer-close{border:0;background:transparent;color:var(--muted);font-size:28px;line-height:1;cursor:pointer}
    .drawer-menu{padding:10px 20px 30px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:14px 0;border:0;border-bottom:1px solid var(--line);background:transparent;text-align:left;color:var(--ink);font-size:15px;cursor:pointer}
    .drawer-toggle:after{content:"+";float:right;color:var(--muted);font-size:20px}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:4px 0 8px 16px}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:8px 0;color:var(--muted);font-size:14px}
    .footer{margin-top:80px;background:#11233f;color:#c8d3e1}
    .footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1fr;gap:45px;padding:52px 0 40px}
    .footer-brand{margin-bottom:12px;color:#fff;font-size:20px;font-weight:700}
    .footer p{margin:6px 0;color:#aebdce;font-size:13px}
    .footer h3{margin:0 0 13px;color:#fff;font-size:15px}
    .footer-grid a{display:block;margin:7px 0;color:#c8d3e1;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,.13);font-size:12px;color:#93a5bb}
    .article-page{padding:46px 0 0}
    .article-crumb{margin-bottom:24px;color:var(--muted);font-size:13px}
    .article-crumb a{color:var(--theme)}
    .article-layout{display:grid;grid-template-columns:minmax(0,780px) 280px;gap:55px;align-items:start}
    .article-header{padding-bottom:24px;border-bottom:1px solid var(--line)}
    .article-label{display:inline-block;margin-bottom:14px;padding:4px 10px;background:#edf3fb;color:var(--theme);font-size:12px}
    .article-title{margin:0 0 15px;color:#14213a;font-size:clamp(28px,4vw,43px);line-height:1.3}
    .article-meta{display:flex;flex-wrap:wrap;gap:16px;color:var(--muted);font-size:13px}
    .article-cover{width:100%;margin:28px 0 30px;max-height:430px;object-fit:cover;background:var(--soft)}
    .article-body{min-width:0;max-width:100%;overflow-x:auto;padding-bottom:12px;color:#334157;font-size:16px}
    .article-body img,.article-body table{max-width:100%}
    .article-body h2{margin:32px 0 14px;color:#172b4d;font-size:25px}
    .article-body h3{margin:25px 0 10px;color:#1b3f76;font-size:20px}
    .article-body p{margin:0 0 18px}
    .article-body blockquote{margin:24px 0;padding:15px 20px;border-left:4px solid var(--accent);background:#faf7ef;color:#596271}
    .article-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
    .article-tags a{padding:5px 10px;border:1px solid var(--line);color:var(--theme);font-size:12px}
    .article-pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:38px;padding-top:22px;border-top:1px solid var(--line)}
    .article-pager a{display:block;padding:15px;background:var(--soft);font-size:14px}
    .article-pager a:last-child{text-align:right}
    .article-pager small{display:block;margin-bottom:4px;color:var(--muted)}
    .article-sidebar{position:sticky;top:20px}
    .side-box{margin-bottom:20px;padding:22px;background:var(--soft);border:1px solid var(--line)}
    .side-box h2{margin:0 0 15px;color:#172b4d;font-size:17px}
    .side-box a{display:block;padding:11px 0;border-bottom:1px solid #e0e5ec;font-size:13px}
    .side-box a:last-child{border-bottom:0}
    .side-box a:hover{color:var(--theme)}
    .side-cta{background:var(--theme);color:#fff;border:0}
    .side-cta h2{color:#fff}
    .side-cta p{margin:0 0 16px;color:#dbe7f8;font-size:13px}
    .side-cta a{display:inline-block;padding:8px 12px;background:#fff;color:var(--theme);border:0}
    .like-articles{margin-top:55px}
    .like-articles h2{font-size:22px;color:#172b4d}
    .like-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .like-card{border:1px solid var(--line);background:#fff}
    .like-card img{width:100%;height:130px;object-fit:cover;background:var(--soft)}
    .like-card div{padding:13px}
    .like-card a{font-size:14px;line-height:1.5}
    @media(max-width:980px){
      .main-nav{display:none}
      .header-btns{margin-left:auto}
      .hamburger{display:block}
      .article-layout{grid-template-columns:minmax(0,1fr)}
      .article-sidebar{position:static;display:grid;grid-template-columns:1fr 1fr;gap:18px}
      .side-box{margin:0}
    }
    @media(max-width:640px){
      .container{width:min(100% - 28px,1180px)}
      .topbar .container{align-items:flex-start;flex-direction:column;gap:0;padding:7px 0}
      .topbar-info{gap:12px;flex-wrap:wrap}
      .header-inner{min-height:65px;gap:10px}
      .nav-list{display:none}
      .member-btn{display:none}
      .logo{font-size:16px}
      .logo img{width:30px;height:30px}
      .open-btn{padding:7px 9px;font-size:12px}
      .article-page{padding-top:28px}
      .article-title{font-size:29px}
      .article-meta{gap:8px 13px}
      .article-body{font-size:15px}
      .article-sidebar{display:block}
      .side-box{margin-bottom:16px}
      .article-pager{grid-template-columns:1fr}
      .article-pager a:last-child{text-align:left}
      .like-grid{grid-template-columns:1fr}
      .like-card{display:grid;grid-template-columns:110px 1fr}
      .like-card img{height:100%;min-height:90px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px 20px;padding:38px 0 28px}
      .footer-grid>div:first-child{grid-column:1/-1}
      .footer-bottom{align-items:flex-start;flex-direction:column;gap:6px}
    }