:root{
      --theme:#0B3D91;
      --theme-dark:#072b68;
      --theme-soft:#eaf1fc;
      --ink:#172033;
      --muted:#667085;
      --line:#e4e8ef;
      --surface:#ffffff;
      --page:#f5f7fb;
      --success:#16815d;
      --warning:#b7791f;
      --radius:18px;
      --shadow:0 16px 42px rgba(19,39,75,.09);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:var(--page);
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      line-height:1.7;
    }
    body,button,input,textarea{font:inherit}
    img{display:block;max-width:100%}
    a{color:inherit;text-decoration:none}
    button{color:inherit}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}

    .topbar{
      color:#dce8ff;
      background:#061c43;
      font-size:13px;
    }
    .topbar .container{
      min-height:36px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
    }
    .topbar-links{display:flex;align-items:center;gap:22px}
    .topbar a{transition:color .2s ease}
    .topbar a:hover{color:#fff}

    .header{
      position:relative;
      z-index:80;
      border-bottom:1px solid rgba(11,61,145,.1);
      background:rgba(255,255,255,.98);
      box-shadow:0 5px 20px rgba(15,38,74,.05);
    }
    .header-inner{
      min-height:78px;
      display:flex;
      align-items:center;
      gap:28px;
    }
    .logo{
      min-width:180px;
      display:flex;
      align-items:center;
      gap:11px;
      color:var(--theme);
      font-size:19px;
      font-weight:800;
      letter-spacing:.02em;
    }
    .logo img{
      width:42px;
      height:42px;
      border-radius:11px;
      object-fit:contain;
      background:#fff;
    }
    .main-nav{margin-left:auto;align-self:stretch}
    .nav-list{
      height:100%;
      display:flex;
      align-items:stretch;
      gap:2px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .nav-item{
      position:relative;
      display:flex;
      align-items:center;
    }
    .nav-link{
      height:100%;
      display:flex;
      align-items:center;
      padding:0 12px;
      color:#27354b;
      font-size:15px;
      font-weight:650;
      white-space:nowrap;
      transition:color .2s ease,background .2s ease;
    }
    .nav-link:hover,.nav-item:focus-within>.nav-link{
      color:var(--theme);
      background:var(--theme-soft);
    }
    .has-arrow::after{
      width:6px;
      height:6px;
      margin:-4px 0 0 8px;
      border-right:1.5px solid currentColor;
      border-bottom:1.5px solid currentColor;
      content:"";
      transform:rotate(45deg);
    }
    .dropdown-panel,.mega-menu{
      position:absolute;
      top:100%;
      left:0;
      z-index:100;
      visibility:hidden;
      opacity:0;
      pointer-events:none;
      border:1px solid var(--line);
      border-radius:0 0 16px 16px;
      background:#fff;
      box-shadow:0 22px 46px rgba(18,38,73,.16);
      transform:translateY(8px);
      transition:opacity .18s ease,transform .18s ease,visibility .18s ease;
    }
    .dropdown-panel::before,.mega-menu::before{
      position:absolute;
      right:0;
      bottom:100%;
      left:0;
      height:12px;
      content:"";
    }
    .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;
      transform:translateY(0);
    }
    .dropdown-panel{
      width:300px;
      padding:12px;
    }
    .dropdown-panel>a{
      display:block;
      overflow:hidden;
      padding:10px 12px;
      border-radius:9px;
      color:#344054;
      font-size:14px;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .dropdown-panel>a:hover{color:var(--theme);background:var(--theme-soft)}
    .mega-menu{
      left:50%;
      width:min(760px,80vw);
      padding:18px;
      transform:translate(-50%,8px);
    }
    .nav-item:hover>.mega-menu,
    .nav-item:focus-within>.mega-menu{transform:translate(-50%,0)}
    .mega-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:11px;
    }
    .mega-card{
      min-width:0;
      display:grid;
      grid-template-columns:46px minmax(0,1fr);
      align-content:center;
      column-gap:10px;
      min-height:88px;
      padding:11px;
      border:1px solid #edf0f5;
      border-radius:12px;
      background:#fff;
      transition:border-color .2s ease,box-shadow .2s ease,transform .2s ease;
    }
    .mega-card:hover{
      border-color:#b9ccef;
      box-shadow:0 10px 25px rgba(11,61,145,.1);
      transform:translateY(-2px);
    }
    .mega-card img{
      grid-row:1/4;
      width:46px;
      height:46px;
      border-radius:10px;
      object-fit:cover;
      background:#f2f5fa;
    }
    .mega-card strong{
      overflow:hidden;
      color:#1e293b;
      font-size:14px;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .mega-card small{
      overflow:hidden;
      color:var(--muted);
      font-size:11px;
      line-height:1.45;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .mega-footer{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:8px 16px;
      margin-top:14px;
      padding:12px 14px 0;
      border-top:1px solid var(--line);
      color:var(--theme);
      font-size:13px;
      font-weight:650;
    }
    a.mega-footer{justify-content:flex-end}
    .header-btns{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .member-link{
      color:var(--theme);
      font-size:14px;
      font-weight:700;
      white-space:nowrap;
    }
    .open-account{
      padding:10px 16px;
      border-radius:10px;
      color:#fff;
      background:var(--theme);
      font-size:14px;
      font-weight:750;
      white-space:nowrap;
      box-shadow:0 8px 18px rgba(11,61,145,.2);
    }
    .open-account:hover{background:var(--theme-dark)}
    .hamburger{
      width:42px;
      height:42px;
      display:none;
      flex-direction:column;
      align-items:center;
      justify-content:center;
      gap:5px;
      padding:0;
      border:1px solid var(--line);
      border-radius:10px;
      background:#fff;
      cursor:pointer;
    }
    .hamburger span{
      width:20px;
      height:2px;
      border-radius:2px;
      background:var(--ink);
      transition:transform .2s ease,opacity .2s ease;
    }
    .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;
      z-index:190;
      visibility:hidden;
      opacity:0;
      background:rgba(4,13,31,.58);
      transition:opacity .25s ease,visibility .25s ease;
    }
    .drawer-overlay.open{visibility:visible;opacity:1}
    .mobile-drawer{
      position:fixed;
      top:0;
      right:0;
      z-index:200;
      width:min(390px,88vw);
      height:100dvh;
      overflow-y:auto;
      background:#fff;
      box-shadow:-18px 0 50px rgba(5,20,48,.22);
      transform:translateX(105%);
      transition:transform .28s ease;
    }
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{
      position:sticky;
      top:0;
      z-index:2;
      min-height:70px;
      display:flex;
      align-items:center;
      gap:14px;
      padding:14px 18px;
      color:#fff;
      background:var(--theme);
    }
    .drawer-head strong{margin-right:auto}
    .drawer-head>a{
      padding:7px 12px;
      border:1px solid rgba(255,255,255,.42);
      border-radius:8px;
      font-size:13px;
    }
    .drawer-close{
      width:36px;
      height:36px;
      padding:0;
      border:0;
      color:#fff;
      background:transparent;
      font-size:30px;
      line-height:1;
      cursor:pointer;
    }
    .drawer-menu{padding:15px 18px 32px}
    .drawer-link,.drawer-toggle{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      padding:13px 4px;
      border:0;
      border-bottom:1px solid var(--line);
      background:transparent;
      color:#25324a;
      font-weight:700;
      text-align:left;
      cursor:pointer;
    }
    .drawer-toggle::after{
      width:8px;
      height:8px;
      margin-right:5px;
      border-right:2px solid var(--muted);
      border-bottom:2px solid var(--muted);
      content:"";
      transform:rotate(45deg);
      transition:transform .2s ease;
    }
    .drawer-toggle.active::after{transform:rotate(225deg)}
    .drawer-submenu{
      max-height:0;
      overflow:hidden;
      padding:0 10px;
      background:#f7f9fc;
      transition:max-height .3s ease,padding .3s ease;
    }
    .drawer-submenu.open{max-height:720px;padding:8px 10px}
    .drawer-submenu a{
      display:block;
      padding:9px 8px;
      color:#536176;
      font-size:14px;
    }
    .drawer-submenu a:hover{color:var(--theme)}

    .article-page{
      min-width:0;
      padding:34px 0 76px;
    }
    .article-page .article-container{
      width:min(1180px,calc(100% - 40px));
      margin:0 auto;
    }
    .article-page .breadcrumbs{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:8px;
      margin-bottom:22px;
      color:#6f7b8d;
      font-size:13px;
    }
    .article-page .breadcrumbs a:hover{color:var(--theme)}
    .article-page .breadcrumbs span:last-child{
      max-width:600px;
      overflow:hidden;
      color:#344054;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .article-page .article-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 310px;
      align-items:start;
      gap:28px;
    }
    .article-page .article-main{min-width:0}
    .article-page .article-card{
      min-width:0;
      overflow:hidden;
      border:1px solid var(--line);
      border-radius:22px;
      background:#fff;
      box-shadow:var(--shadow);
    }
    .article-page .article-header{
      position:relative;
      padding:44px 48px 30px;
      border-bottom:1px solid var(--line);
      background:
        radial-gradient(circle at 92% 10%,rgba(11,61,145,.13),transparent 30%),
        linear-gradient(145deg,#fff 0%,#f2f6fd 100%);
    }
    .article-page .article-header::before{
      position:absolute;
      top:0;
      left:48px;
      width:68px;
      height:4px;
      border-radius:0 0 5px 5px;
      background:var(--theme);
      content:"";
    }
    .article-page .category-label{
      display:inline-flex;
      align-items:center;
      gap:7px;
      margin-bottom:15px;
      padding:6px 11px;
      border:1px solid #c9d8f2;
      border-radius:999px;
      color:var(--theme);
      background:#fff;
      font-size:13px;
      font-weight:750;
    }
    .article-page .category-label::before{
      width:7px;
      height:7px;
      border-radius:50%;
      background:var(--theme);
      content:"";
    }
    .article-page h1{
      margin:0;
      color:#14213a;
      font-size:clamp(30px,4vw,48px);
      line-height:1.25;
      letter-spacing:-.025em;
      overflow-wrap:anywhere;
    }
    .article-page .article-meta{
      display:flex;
      flex-wrap:wrap;
      gap:10px 22px;
      margin-top:20px;
      color:#68758a;
      font-size:14px;
    }
    .article-page .article-meta span{
      display:inline-flex;
      align-items:center;
      gap:7px;
    }
    .article-page .article-meta span::before{
      width:6px;
      height:6px;
      border-radius:50%;
      background:#9fb6db;
      content:"";
    }
    .article-page .article-tags{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:8px;
      margin-top:20px;
      color:#5d6b7e;
      font-size:14px;
    }
    .article-page .article-tags strong{color:#344054}
    .article-page .article-tags a{
      padding:5px 10px;
      border-radius:999px;
      color:var(--theme);
      background:#e9f0fb;
    }
    .article-page .article-content{
      min-width:0;
      max-width:100%;
      overflow-x:auto;
      padding:42px 48px 48px;
      color:#303b4f;
      font-size:17px;
      line-height:1.95;
      overflow-wrap:anywhere;
    }
    .article-page .article-content h2,
    .article-page .article-content h3,
    .article-page .article-content h4{
      scroll-margin-top:24px;
      color:#17233a;
      line-height:1.4;
    }
    .article-page .article-content h2{
      margin:38px 0 15px;
      padding-left:14px;
      border-left:4px solid var(--theme);
      font-size:27px;
    }
    .article-page .article-content h3{margin:30px 0 12px;font-size:22px}
    .article-page .article-content p{margin:0 0 20px}
    .article-page .article-content a{
      color:var(--theme);
      text-decoration:underline;
      text-underline-offset:3px;
    }
    .article-page .article-content img{
      height:auto;
      max-width:100%;
      margin:28px auto;
      border-radius:14px;
    }
    .article-page .article-content table{
      width:100%;
      max-width:100%;
      border-collapse:collapse;
      background:#fff;
    }
    .article-page .article-content th,
    .article-page .article-content td{
      padding:11px 13px;
      border:1px solid #dce2eb;
      text-align:left;
    }
    .article-page .article-content blockquote{
      margin:26px 0;
      padding:18px 22px;
      border-left:4px solid var(--theme);
      border-radius:0 12px 12px 0;
      color:#3e4d62;
      background:var(--theme-soft);
    }
    .article-page .article-content pre{
      max-width:100%;
      overflow:auto;
      padding:18px;
      border-radius:12px;
      color:#e9f0ff;
      background:#101828;
    }
    .article-page .risk-note{
      margin:0 48px 42px;
      padding:18px 20px;
      border:1px solid #f1d9aa;
      border-radius:14px;
      color:#76531c;
      background:#fff9ec;
      font-size:14px;
    }
    .article-page .risk-note strong{
      display:block;
      margin-bottom:4px;
      color:#5f4216;
    }
    .article-page .article-navigation{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:14px;
      margin-top:22px;
    }
    .article-page .article-navigation a{
      min-width:0;
      padding:18px 20px;
      border:1px solid var(--line);
      border-radius:14px;
      background:#fff;
      box-shadow:0 8px 25px rgba(25,48,83,.05);
      transition:border-color .2s ease,transform .2s ease;
    }
    .article-page .article-navigation a:hover{
      border-color:#aac0e5;
      transform:translateY(-2px);
    }
    .article-page .article-navigation small{
      display:block;
      margin-bottom:5px;
      color:#7b8798;
    }
    .article-page .article-navigation strong{
      display:block;
      overflow:hidden;
      color:#26354e;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .article-page .next-article{text-align:right}

    .article-page .article-sidebar{
      position:sticky;
      top:22px;
      display:grid;
      gap:18px;
    }
    .article-page .side-card{
      overflow:hidden;
      padding:22px;
      border:1px solid var(--line);
      border-radius:17px;
      background:#fff;
      box-shadow:0 10px 28px rgba(29,52,87,.06);
    }
    .article-page .side-card h2{
      margin:0 0 15px;
      color:#1b2941;
      font-size:19px;
    }
    .article-page .side-card p{
      margin:0 0 15px;
      color:#68758a;
      font-size:14px;
    }
    .article-page .quick-links{
      display:grid;
      gap:9px;
    }
    .article-page .quick-links a{
      display:flex;
      align-items:center;
      justify-content:space-between;
      padding:10px 12px;
      border-radius:9px;
      color:#344054;
      background:#f5f7fa;
      font-size:14px;
    }
    .article-page .quick-links a::after{color:var(--theme);content:"›"}
    .article-page .quick-links a:hover{color:var(--theme);background:var(--theme-soft)}
    .article-page .side-cta{
      color:#fff;
      background:linear-gradient(145deg,var(--theme),#062761);
    }
    .article-page .side-cta h2,.article-page .side-cta p{color:#fff}
    .article-page .side-cta p{opacity:.8}
    .article-page .side-cta a{
      display:inline-flex;
      padding:9px 14px;
      border-radius:9px;
      color:var(--theme);
      background:#fff;
      font-size:14px;
      font-weight:750;
    }
    .article-page .related-section{margin-top:52px}
    .article-page .section-heading{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:20px;
      margin-bottom:19px;
    }
    .article-page .section-heading h2{
      margin:0;
      color:#17233a;
      font-size:27px;
    }
    .article-page .section-heading p{
      margin:0;
      color:var(--muted);
      font-size:14px;
    }
    .article-page .related-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:18px;
    }
    .article-page .related-card{
      min-width:0;
      overflow:hidden;
      border:1px solid var(--line);
      border-radius:16px;
      background:#fff;
      box-shadow:0 9px 26px rgba(26,50,87,.06);
      transition:transform .2s ease,box-shadow .2s ease;
    }
    .article-page .related-card:hover{
      transform:translateY(-4px);
      box-shadow:0 16px 35px rgba(26,50,87,.11);
    }
    .article-page .related-card img{
      width:100%;
      height:172px;
      object-fit:cover;
      background:#e8edf5;
    }
    .article-page .related-body{padding:17px}
    .article-page .related-body h3{
      display:-webkit-box;
      overflow:hidden;
      margin:0 0 9px;
      color:#1e2b43;
      font-size:17px;
      line-height:1.55;
      -webkit-box-orient:vertical;
      -webkit-line-clamp:2;
    }
    .article-page .related-body p{
      display:-webkit-box;
      overflow:hidden;
      margin:0 0 14px;
      color:#69768a;
      font-size:13px;
      line-height:1.7;
      -webkit-box-orient:vertical;
      -webkit-line-clamp:2;
    }
    .article-page .related-meta{
      display:flex;
      justify-content:space-between;
      gap:10px;
      color:#8490a1;
      font-size:12px;
    }

    .footer{
      color:#cbd5e5;
      background:#071a3c;
    }
    .footer .container{padding-top:58px}
    .footer-grid{
      display:grid;
      grid-template-columns:1.5fr repeat(3,1fr);
      gap:40px;
      padding-bottom:42px;
    }
    .footer h3{
      margin:0 0 15px;
      color:#fff;
      font-size:16px;
    }
    .footer-brand strong{
      display:block;
      margin-bottom:14px;
      color:#fff;
      font-size:23px;
    }
    .footer p{
      margin:7px 0;
      color:#aab7cb;
      font-size:14px;
      line-height:1.75;
    }
    .footer-grid>div:not(.footer-brand)>a{
      display:block;
      width:max-content;
      max-width:100%;
      margin:9px 0;
      color:#aebbd0;
      font-size:14px;
    }
    .footer a:hover{color:#fff}
    .footer-bottom{
      min-height:72px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
      border-top:1px solid rgba(255,255,255,.1);
      color:#8fa0b8;
      font-size:13px;
    }

    @media (max-width:1100px){
      .main-nav{display:none}
      .hamburger{display:flex}
      .header-inner{gap:16px}
      .header-btns{margin-left:auto}
      .article-page .article-layout{grid-template-columns:minmax(0,1fr) 280px}
    }
    @media (max-width:900px){
      .article-page .article-layout{grid-template-columns:1fr}
      .article-page .article-sidebar{
        position:static;
        grid-template-columns:repeat(2,minmax(0,1fr));
      }
      .article-page .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
      .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    }
    @media (max-width:680px){
      .container,.article-page .article-container{width:min(100% - 28px,1180px)}
      .topbar .container{min-height:42px}
      .topbar .container>span{display:none}
      .topbar-links{
        width:100%;
        justify-content:space-between;
        gap:10px;
      }
      .header-inner{min-height:68px}
      .logo{min-width:0}
      .logo img{width:38px;height:38px}
      .logo span{
        max-width:125px;
        overflow:hidden;
        font-size:16px;
        text-overflow:ellipsis;
        white-space:nowrap;
      }
      .member-link,.open-account{display:none}
      .article-page{padding:24px 0 55px}
      .article-page .article-header{padding:35px 23px 24px}
      .article-page .article-header::before{left:23px}
      .article-page h1{font-size:30px}
      .article-page .article-content{
        padding:28px 23px 34px;
        font-size:16px;
      }
      .article-page .risk-note{margin:0 23px 30px}
      .article-page .article-navigation{grid-template-columns:1fr}
      .article-page .next-article{text-align:left}
      .article-page .article-sidebar{grid-template-columns:1fr}
      .article-page .section-heading{
        display:block;
        margin-bottom:16px;
      }
      .article-page .section-heading p{margin-top:5px}
      .article-page .related-grid{grid-template-columns:1fr}
      .article-page .related-card img{height:200px}
      .footer .container{padding-top:42px}
      .footer-grid{grid-template-columns:1fr;gap:26px}
      .footer-bottom{
        align-items:flex-start;
        flex-direction:column;
        justify-content:center;
        gap:6px;
        padding:18px 0;
      }
    }