:root{--theme:#0B3D91;--ink:#172033;--muted:#687386;--line:#e6eaf0;--bg:#f5f7fa;--white:#fff;--accent:#d41467}
    *{box-sizing:border-box}
    html,body{margin:0;padding:0;color:var(--ink);background:var(--bg);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",Arial,sans-serif;line-height:1.65}
    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{height:38px;background:#10223f;color:#dbe5f5;font-size:13px}
    .topbar .container,.topbar-links{height:100%;display:flex;align-items:center;justify-content:space-between}
    .topbar-links{gap:22px}
    .topbar a{color:#dbe5f5}
    .header{position:relative;z-index:20;background:#fff;border-bottom:1px solid var(--line)}
    .header-inner{min-height:76px;display:flex;align-items:center;gap:30px}
    .logo{display:flex;align-items:center;gap:10px;min-width:190px;font-size:19px;font-weight:800;color:var(--theme)}
    .logo img{width:36px;height:36px;object-fit:contain}
    .main-nav{flex:1}
    .nav-list{display:flex;justify-content:center;align-items:stretch;gap:3px;margin:0;padding:0;list-style:none}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;gap:5px;padding:27px 13px;font-size:14px;font-weight:600;white-space:nowrap}
    .nav-link:hover,.nav-link:focus{color:var(--theme)}
    .has-arrow:after{content:"";width:6px;height:6px;border-right:1px solid currentColor;border-bottom:1px solid currentColor;transform:rotate(45deg);margin-top:-4px}
    .dropdown-panel,.mega-menu{position:absolute;top:100%;left:50%;transform:translateX(-50%);visibility:hidden;opacity:0;pointer-events:none;background:#fff;border:1px solid var(--line);box-shadow:0 18px 42px rgba(19,39,74,.15);border-radius:0 0 12px 12px;transition:.2s;z-index:30}
    .dropdown-panel{width:300px;padding:20px}
    .mega-menu{width:700px;padding:24px}
    .nav-item:hover>.dropdown-panel,.nav-item:focus-within>.dropdown-panel,.nav-item:hover>.mega-menu,.nav-item:focus-within>.mega-menu{visibility:visible;opacity:1;pointer-events:auto}
    .nav-item:after{content:"";position:absolute;left:0;right:0;top:100%;height:12px}
    .drop-title,.mega-title{margin:0 0 12px;color:var(--theme);font-weight:800;font-size:14px}
    .drop-list{display:grid;gap:8px}
    .drop-list a{display:block;padding:5px 0;color:#3e4b60;font-size:13px;border-bottom:1px solid #f0f2f5}
    .drop-list a:hover{color:var(--accent)}
    .mega-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:30px}
    .mega-items{display:grid;grid-template-columns:1fr 1fr;gap:10px}
    .mega-card{display:flex;gap:9px;min-width:0;padding:8px;border:1px solid #edf0f4;border-radius:8px}
    .mega-card:hover{border-color:#b9c9e4;background:#f8fbff}
    .mega-card img{width:34px;height:34px;object-fit:cover;border-radius:6px;flex:none}
    .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:12px}.mega-card small{font-size:11px;color:var(--muted)}
    .mega-footer{display:inline-block;margin-top:15px;color:var(--theme);font-size:13px;font-weight:700}
    .header-btns{display:flex;align-items:center;gap:10px;white-space:nowrap}
    .member-link{font-size:13px;color:var(--theme)}
    .open-account{padding:8px 14px;border-radius:7px;background:var(--theme);color:#fff;font-size:13px}
    .hamburger{display:none;border:0;background:transparent;padding:8px;cursor:pointer}
    .hamburger span{display:block;width:23px;height:2px;margin:5px 0;background:var(--ink);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{display:none;position:fixed;inset:0;background:rgba(8,20,40,.5);z-index:50}
    .drawer-overlay.open{display:block}
    .mobile-drawer{position:fixed;right:0;top:0;bottom:0;width:min(360px,88vw);background:#fff;z-index:51;transform:translateX(100%);transition:.25s;overflow:auto;box-shadow:-10px 0 30px rgba(0,0,0,.15)}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{display:flex;align-items:center;gap:15px;padding:22px 20px;border-bottom:1px solid var(--line);font-weight:700;color:var(--theme)}
    .drawer-head a{margin-left:auto;background:var(--theme);color:#fff;padding:6px 12px;border-radius:5px;font-size:13px}
    .drawer-close{border:0;background:none;font-size:28px;line-height:1;color:#6d7788;cursor:pointer}
    .drawer-menu{padding:10px 20px 30px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 0;border:0;border-bottom:1px solid #edf0f4;background:none;text-align:left;color:var(--ink);font-weight:600}
    .drawer-toggle{cursor:pointer;position:relative}.drawer-toggle:after{content:"+";position:absolute;right:5px;color:var(--theme);font-size:18px}.drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:5px 12px;background:#f7f9fc}.drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:8px 0;color:var(--muted);font-size:13px}
    .footer{margin-top:70px;background:#101c31;color:#c8d2e1;padding:48px 0 18px}
    .footer-grid{display:grid;grid-template-columns:1.35fr 1fr 1fr 1fr;gap:34px}
    .footer h3{margin:0 0 15px;color:#fff;font-size:15px}
    .footer p{margin:6px 0;font-size:13px}
    .footer a{display:block;margin:7px 0;color:#c8d2e1;font-size:13px}
    .footer a:hover{color:#fff}
    .footer-brand strong{display:block;color:#fff;font-size:20px;margin-bottom:13px}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;border-top:1px solid rgba(255,255,255,.15);padding-top:18px;margin-top:35px;font-size:12px;color:#94a4bb}
    .article-page{padding:48px 0 10px}
    .article-layout{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:28px;align-items:start}
    .article-main,.article-side{background:#fff;border:1px solid var(--line);border-radius:14px}
    .article-main{padding:34px 42px}
    .article-kicker{display:flex;flex-wrap:wrap;gap:9px;align-items:center;color:var(--theme);font-size:13px;font-weight:700}
    .article-kicker a{color:var(--accent)}
    .article-title{font-size:clamp(28px,4vw,44px);line-height:1.22;margin:14px 0 15px;color:#12223d;letter-spacing:-.5px}
    .article-meta{display:flex;flex-wrap:wrap;gap:18px;color:var(--muted);font-size:13px;padding-bottom:22px;border-bottom:1px solid var(--line)}
    .article-cover{width:100%;max-height:440px;object-fit:cover;border-radius:10px;margin:26px 0}
    .article-body{min-width:0;max-width:100%;overflow-x:auto;color:#354258;font-size:16px}
    .article-body img,.article-body table{max-width:100%;height:auto}
    .article-body h2{font-size:25px;color:#12223d;margin:30px 0 13px}
    .article-body h3{font-size:20px;color:var(--theme);margin:24px 0 10px}
    .article-body p{margin:0 0 18px}
    .article-body ul,.article-body ol{padding-left:25px}
    .article-body blockquote{margin:24px 0;padding:16px 20px;border-left:4px solid var(--accent);background:#fff4f8;color:#5b4251}
    .article-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:28px;padding-top:20px;border-top:1px solid var(--line)}
    .article-tags a{background:#f0f4fa;color:var(--theme);padding:5px 11px;border-radius:20px;font-size:12px}
    .article-side{padding:22px;position:sticky;top:18px}
    .side-title{margin:0 0 17px;font-size:18px;color:#12223d}
    .side-item{display:grid;grid-template-columns:76px 1fr;gap:10px;padding:12px 0;border-bottom:1px solid #edf0f4}
    .side-item:last-child{border:0}.side-item img{width:76px;height:58px;object-fit:cover;border-radius:6px;background:#e8edf4}
    .side-item h3{font-size:13px;line-height:1.4;margin:0 0 5px}.side-item p{font-size:11px;color:var(--muted);margin:0}
    .article-nav{display:grid;grid-template-columns:1fr 1fr;gap:15px;margin-top:28px}
    .article-nav a{padding:15px;background:#f7f9fc;border-radius:8px;font-size:13px;color:var(--theme)}
    .article-nav a:last-child{text-align:right}
    .like-articles{margin-top:40px}.like-articles h2{font-size:24px;margin:0 0 18px}
    .like-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}
    .like-card{border:1px solid var(--line);border-radius:9px;overflow:hidden;background:#fff}
    .like-card img{width:100%;height:130px;object-fit:cover;background:#e8edf4}
    .like-card div{padding:12px}.like-card h3{font-size:14px;line-height:1.45;margin:0 0 6px}.like-card p{margin:0;color:var(--muted);font-size:12px}
    @media(max-width:980px){
      .main-nav{display:none}.hamburger{display:block}.header-inner{justify-content:space-between}.header-btns{margin-left:auto}
      .article-layout{grid-template-columns:1fr}.article-side{position:static}.footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:620px){
      .container{width:min(100% - 28px,1180px)}.topbar{height:auto;padding:8px 0}.topbar .container{align-items:flex-start;gap:6px;flex-direction:column}.topbar-links{gap:12px}
      .logo{min-width:0;font-size:16px}.logo img{width:30px;height:30px}.member-link{display:none}.open-account{padding:7px 10px}
      .article-page{padding:25px 0}.article-main{padding:23px 18px}.article-title{font-size:29px}.article-meta{gap:9px;line-height:1.5}.article-body{font-size:15px}
      .article-nav{grid-template-columns:1fr}.article-nav a:last-child{text-align:left}.like-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr 1fr;gap:22px}.footer{margin-top:42px;padding-top:34px}.footer-bottom{display:block}.footer-bottom span{display:block;margin:5px 0}
    }