:root{
      --theme:#0B3D91;
      --template-theme:{主题色};
      --theme-dark:#072b68;
      --theme-light:#eaf1fb;
      --ink:#18212f;
      --muted:#667085;
      --line:#e3e8ef;
      --surface:#ffffff;
      --soft:#f5f7fa;
      --success:#39745b;
      --radius:18px;
      --shadow:0 18px 50px rgba(19,33,54,.10);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:#f6f8fb;
      font-family:"Microsoft YaHei","PingFang SC","Noto Sans SC",Arial,sans-serif;
      line-height:1.7;
      -webkit-font-smoothing:antialiased;
    }
    body,button,input,textarea,select{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{
      position:relative;
      z-index:80;
      color:#e7edf8;
      background:#071d3e;
      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:70;
      background:rgba(255,255,255,.98);
      border-bottom:1px solid var(--line);
      box-shadow:0 6px 18px rgba(15,35,68,.04);
    }
    .header-inner{
      min-height:78px;
      display:flex;
      align-items:center;
      gap:24px;
      position:relative;
    }
    .logo{
      min-width:190px;
      display:flex;
      align-items:center;
      gap:11px;
      color:var(--theme-dark);
      font-size:18px;
      font-weight:800;
      letter-spacing:.02em;
    }
    .logo img{
      width:42px;
      height:42px;
      object-fit:contain;
      border-radius:10px;
    }
    .main-nav{margin-left:auto;height:78px}
    .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 11px;
      color:#26364c;
      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:#f6f9fd;
    }
    .has-arrow::after{
      content:"";
      width:6px;
      height:6px;
      margin-left:7px;
      border-right:1.5px solid currentColor;
      border-bottom:1.5px solid currentColor;
      transform:rotate(45deg) translateY(-2px);
      transition:transform .2s ease;
    }
    .nav-item:hover .has-arrow::after,.nav-item:focus-within .has-arrow::after{
      transform:rotate(225deg) translate(-1px,-1px);
    }
    .dropdown-panel,.mega-menu{
      position:absolute;
      top:100%;
      left:50%;
      z-index:90;
      visibility:hidden;
      opacity:0;
      pointer-events:none;
      transform:translate(-50%,10px);
      background:#fff;
      border:1px solid var(--line);
      border-radius:0 0 16px 16px;
      box-shadow:0 24px 50px rgba(15,35,68,.16);
      transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
    }
    .dropdown-panel::before,.mega-menu::before{
      content:"";
      position:absolute;
      left:0;
      right:0;
      top:-10px;
      height:10px;
    }
    .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:translate(-50%,0);
    }
    .dropdown-panel{
      width:320px;
      padding:20px;
    }
    .dropdown-title,.mega-heading{
      margin:0 0 13px;
      color:#182a44;
      font-size:14px;
      font-weight:800;
    }
    .dropdown-list{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:8px;
    }
    .dropdown-panel .dropdown-list{grid-template-columns:1fr}
    .dropdown-list a{
      min-width:0;
      padding:9px 11px;
      overflow:hidden;
      color:#526176;
      background:#f6f8fb;
      border-radius:9px;
      font-size:13px;
      text-overflow:ellipsis;
      white-space:nowrap;
      transition:background .2s ease,color .2s ease;
    }
    .dropdown-list a:hover{color:var(--theme);background:var(--theme-light)}
    .mega-menu{
      left:auto;
      right:-150px;
      width:min(850px,calc(100vw - 40px));
      padding:24px;
      transform:translateY(10px);
    }
    .nav-item:hover>.mega-menu,.nav-item:focus-within>.mega-menu{transform:translateY(0)}
    .mega-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:11px;
    }
    .mega-card{
      min-width:0;
      min-height:92px;
      display:grid;
      grid-template-columns:48px minmax(0,1fr);
      grid-template-rows:auto auto;
      align-content:center;
      gap:2px 11px;
      padding:12px;
      background:#f7f9fc;
      border:1px solid transparent;
      border-radius:12px;
      transition:transform .2s ease,border-color .2s ease,background .2s ease;
    }
    .mega-card:hover{
      transform:translateY(-2px);
      background:#fff;
      border-color:#bfd0e8;
    }
    .mega-card img{
      grid-row:1/4;
      width:48px;
      height:48px;
      align-self:center;
      object-fit:contain;
      background:#fff;
      border-radius:10px;
    }
    .mega-card strong{
      min-width:0;
      overflow:hidden;
      color:#1f3048;
      font-size:14px;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .mega-card small{
      min-width:0;
      overflow:hidden;
      color:#768397;
      font-size:11px;
      line-height:1.4;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .mega-footer{
      display:block;
      margin-top:16px;
      padding-top:13px;
      color:var(--theme);
      border-top:1px solid var(--line);
      font-size:13px;
      font-weight:750;
      text-align:right;
    }
    .header-btns{
      display:flex;
      align-items:center;
      gap:9px;
      white-space:nowrap;
    }
    .member-link{
      color:var(--theme);
      font-size:14px;
      font-weight:700;
    }
    .open-account{
      display:inline-flex;
      min-height:40px;
      align-items:center;
      justify-content:center;
      padding:0 17px;
      color:#fff;
      background:var(--theme);
      border-radius:9px;
      font-size:14px;
      font-weight:750;
      box-shadow:0 8px 18px rgba(11,61,145,.20);
      transition:background .2s ease,transform .2s ease;
    }
    .open-account:hover{background:var(--theme-dark);transform:translateY(-1px)}
    .hamburger{
      width:42px;
      height:42px;
      display:none;
      flex-direction:column;
      align-items:center;
      justify-content:center;
      gap:5px;
      padding:0;
      background:#fff;
      border:1px solid var(--line);
      border-radius:9px;
      cursor:pointer;
    }
    .hamburger span{
      width:20px;
      height:2px;
      background:#1e304a;
      border-radius:2px;
      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(5,17,36,.62);
      backdrop-filter:blur(3px);
      transition:opacity .25s ease,visibility .25s ease;
    }
    .drawer-overlay.open{visibility:visible;opacity:1}
    .mobile-drawer{
      position:fixed;
      top:0;
      right:0;
      bottom:0;
      z-index:200;
      width:min(390px,90vw);
      overflow-y:auto;
      background:#fff;
      box-shadow:-24px 0 60px rgba(5,17,36,.22);
      transform:translateX(105%);
      transition:transform .28s ease;
    }
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{
      min-height:72px;
      display:flex;
      align-items:center;
      gap:12px;
      padding:14px 18px;
      color:#fff;
      background:var(--theme);
    }
    .drawer-head>a{
      padding:7px 11px;
      background:rgba(255,255,255,.13);
      border-radius:8px;
      font-size:14px;
    }
    .drawer-close{
      width:38px;
      height:38px;
      margin-left:auto;
      padding:0;
      color:#fff;
      background:rgba(255,255,255,.13);
      border:0;
      border-radius:50%;
      font-size:27px;
      line-height:1;
      cursor:pointer;
    }
    .drawer-menu{padding:14px 18px 28px}
    .drawer-link,.drawer-toggle{
      width:100%;
      min-height:48px;
      display:flex;
      align-items:center;
      padding:10px 3px;
      color:#22344e;
      background:transparent;
      border:0;
      border-bottom:1px solid #edf0f4;
      font-weight:700;
      text-align:left;
      cursor:pointer;
    }
    .drawer-toggle::after{
      content:"+";
      margin-left:auto;
      color:var(--theme);
      font-size:20px;
      font-weight:400;
    }
    .drawer-toggle.active::after{content:"−"}
    .drawer-submenu{
      display:none;
      padding:7px 0 10px 13px;
      border-bottom:1px solid #edf0f4;
    }
    .drawer-submenu.open{display:grid}
    .drawer-submenu a{
      padding:8px 10px;
      color:#647287;
      border-left:2px solid #d9e3f1;
      font-size:13px;
    }
    .drawer-submenu a:hover{color:var(--theme);border-color:var(--theme)}
    .article-page{
      padding-bottom:78px;
      background:
        radial-gradient(circle at 8% 10%,rgba(11,61,145,.07),transparent 27%),
        linear-gradient(180deg,#f5f8fc 0,#fff 430px);
    }
    .article-page .article-masthead{
      padding:44px 0 34px;
      border-bottom:1px solid rgba(214,222,233,.8);
    }
    .article-page .breadcrumbs{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:8px;
      margin-bottom:24px;
      color:#718096;
      font-size:13px;
    }
    .article-page .breadcrumbs a{transition:color .2s ease}
    .article-page .breadcrumbs a:hover{color:var(--theme)}
    .article-page .breadcrumbs span::before{
      content:"/";
      margin-right:8px;
      color:#a8b2c0;
    }
    .article-page .article-category{
      display:inline-flex;
      align-items:center;
      gap:7px;
      margin-bottom:14px;
      padding:6px 12px;
      color:var(--theme);
      background:#e8f0fc;
      border:1px solid #cfddf2;
      border-radius:999px;
      font-size:13px;
      font-weight:750;
    }
    .article-page .article-category::before{
      content:"";
      width:7px;
      height:7px;
      background:var(--theme);
      border-radius:50%;
    }
    .article-page .article-title{
      max-width:940px;
      margin:0;
      color:#14243a;
      font-size:clamp(30px,4.1vw,52px);
      line-height:1.22;
      letter-spacing:-.025em;
    }
    .article-page .article-meta{
      display:flex;
      flex-wrap:wrap;
      gap:11px 20px;
      margin-top:22px;
      color:#67758a;
      font-size:14px;
    }
    .article-page .article-meta span{
      display:inline-flex;
      align-items:center;
      gap:7px;
    }
    .article-page .article-meta span::before{
      content:"";
      width:6px;
      height:6px;
      background:#9eabbc;
      border-radius:50%;
    }
    .article-page .article-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 300px;
      gap:32px;
      align-items:start;
      padding-top:38px;
    }
    .article-page .article-card{
      min-width:0;
      overflow:hidden;
      background:#fff;
      border:1px solid var(--line);
      border-radius:22px;
      box-shadow:var(--shadow);
    }
    .article-page .article-intro{
      padding:25px 34px;
      color:#41516a;
      background:linear-gradient(135deg,#eef4fc,#f8fafc);
      border-bottom:1px solid #dce5f0;
      font-size:16px;
    }
    .article-page .article-intro strong{color:var(--theme)}
    .article-page .article-body{
      min-width:0;
      max-width:100%;
      overflow-x:auto;
      padding:38px 44px 45px;
      color:#2e3a4c;
      font-size:17px;
      line-height:1.9;
    }
    .article-page .article-body h1,
    .article-page .article-body h2,
    .article-page .article-body h3,
    .article-page .article-body h4{
      color:#17283e;
      line-height:1.4;
      scroll-margin-top:20px;
    }
    .article-page .article-body h2{
      margin:38px 0 15px;
      padding-left:14px;
      border-left:4px solid var(--theme);
      font-size:27px;
    }
    .article-page .article-body h3{margin:28px 0 12px;font-size:21px}
    .article-page .article-body p{margin:0 0 20px}
    .article-page .article-body a{
      color:var(--theme);
      border-bottom:1px dotted currentColor;
    }
    .article-page .article-body img,
    .article-page .article-body video,
    .article-page .article-body iframe{
      max-width:100%;
      height:auto;
      margin:24px auto;
      border-radius:14px;
    }
    .article-page .article-body table{
      width:100%;
      max-width:100%;
      margin:24px 0;
      border-collapse:collapse;
      font-size:15px;
    }
    .article-page .article-body th,
    .article-page .article-body td{
      min-width:120px;
      padding:12px;
      border:1px solid #dce2ea;
      text-align:left;
    }
    .article-page .article-body th{background:#edf3fb}
    .article-page .article-body blockquote{
      margin:26px 0;
      padding:20px 23px;
      color:#334862;
      background:#f0f5fb;
      border-left:4px solid var(--theme);
      border-radius:0 12px 12px 0;
    }
    .article-page .article-body pre{
      max-width:100%;
      overflow-x:auto;
      padding:20px;
      color:#eaf1fb;
      background:#10223c;
      border-radius:12px;
    }
    .article-page .risk-note{
      margin:0 44px 34px;
      padding:18px 20px;
      color:#5c5141;
      background:#fffaf0;
      border:1px solid #eadbbd;
      border-radius:13px;
      font-size:14px;
    }
    .article-page .article-tags{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:9px;
      padding:0 44px 35px;
      color:#68778b;
      font-size:14px;
    }
    .article-page .article-tags strong{color:#243850}
    .article-page .article-tags a{
      display:inline-flex;
      padding:6px 11px;
      color:var(--theme);
      background:#eef4fc;
      border-radius:999px;
    }
    .article-page .article-navigation{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:16px;
      margin-top:22px;
    }
    .article-page .article-navigation a{
      min-width:0;
      display:flex;
      flex-direction:column;
      gap:5px;
      padding:19px 21px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:14px;
      box-shadow:0 10px 26px rgba(23,40,62,.06);
      transition:transform .2s ease,border-color .2s ease;
    }
    .article-page .article-navigation a:hover{transform:translateY(-2px);border-color:#aec4e3}
    .article-page .article-navigation small{color:#7b8798}
    .article-page .article-navigation strong{
      overflow:hidden;
      color:#263a53;
      font-size:15px;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .article-page .article-navigation .next{text-align:right}
    .article-page .article-sidebar{
      position:sticky;
      top:24px;
      display:grid;
      gap:18px;
    }
    .article-page .side-panel{
      overflow:hidden;
      padding:22px;
      background:#fff;
      border:1px solid var(--line);
      border-radius:17px;
      box-shadow:0 12px 34px rgba(20,42,70,.07);
    }
    .article-page .side-panel h2{
      margin:0 0 14px;
      color:#1d304a;
      font-size:18px;
    }
    .article-page .reading-guide{
      margin:0;
      padding:0;
      list-style:none;
      counter-reset:guide;
    }
    .article-page .reading-guide li{
      counter-increment:guide;
      display:flex;
      gap:10px;
      padding:10px 0;
      color:#536379;
      border-bottom:1px solid #edf0f4;
      font-size:14px;
    }
    .article-page .reading-guide li:last-child{border-bottom:0}
    .article-page .reading-guide li::before{
      content:counter(guide);
      width:23px;
      height:23px;
      flex:0 0 23px;
      display:grid;
      place-items:center;
      color:#fff;
      background:var(--theme);
      border-radius:50%;
      font-size:11px;
      font-weight:800;
    }
    .article-page .side-cta{
      color:#fff;
      background:linear-gradient(145deg,var(--theme),#082c68);
      border:0;
    }
    .article-page .side-cta h2{color:#fff}
    .article-page .side-cta p{margin:0 0 17px;color:#dce8fa;font-size:14px}
    .article-page .side-cta a{
      display:flex;
      min-height:43px;
      align-items:center;
      justify-content:center;
      color:var(--theme-dark);
      background:#fff;
      border-radius:10px;
      font-weight:800;
    }
    .article-page .related-section{padding-top:58px}
    .article-page .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:20px;
      margin-bottom:21px;
    }
    .article-page .section-head h2{
      margin:0;
      color:#172a43;
      font-size:29px;
    }
    .article-page .section-head p{margin:0;color:#748196;font-size:14px}
    .article-page .related-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:20px;
    }
    .article-page .related-card{
      min-width:0;
      overflow:hidden;
      background:#fff;
      border:1px solid var(--line);
      border-radius:16px;
      box-shadow:0 10px 30px rgba(21,39,65,.07);
      transition:transform .2s ease,box-shadow .2s ease;
    }
    .article-page .related-card:hover{
      transform:translateY(-4px);
      box-shadow:0 17px 36px rgba(21,39,65,.12);
    }
    .article-page .related-card img{
      width:100%;
      height:170px;
      object-fit:cover;
      background:#e9eef5;
    }
    .article-page .related-body{padding:17px}
    .article-page .related-body h3{
      display:-webkit-box;
      margin:0 0 9px;
      overflow:hidden;
      color:#20334c;
      font-size:17px;
      line-height:1.5;
      -webkit-box-orient:vertical;
      -webkit-line-clamp:2;
    }
    .article-page .related-body p{
      display:-webkit-box;
      margin:0 0 13px;
      overflow:hidden;
      color:#6c798b;
      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:#8792a1;
      font-size:12px;
    }
    .footer{
      color:#cbd5e3;
      background:#0a1a30;
    }
    .footer .container{padding-top:55px}
    .footer-grid{
      display:grid;
      grid-template-columns:1.45fr 1fr 1fr 1.15fr;
      gap:42px;
      padding-bottom:38px;
    }
    .footer h3{
      margin:0 0 15px;
      color:#fff;
      font-size:16px;
    }
    .footer p{margin:7px 0;color:#aeb9c8;font-size:13px;line-height:1.75}
    .footer-links{display:grid;gap:8px}
    .footer-links a,.footer p a{
      color:#b7c3d2;
      font-size:13px;
      transition:color .2s ease,transform .2s ease;
    }
    .footer-links a:hover,.footer p a:hover{color:#fff;transform:translateX(2px)}
    .footer-bottom{
      padding:19px 0 22px;
      color:#8d9bad;
      border-top:1px solid rgba(255,255,255,.09);
      font-size:13px;
      text-align:center;
    }
    @media (max-width:1120px){
      .main-nav{display:none}
      .hamburger{display:flex}
      .header-inner{min-height:70px}
      .logo{min-width:0;margin-right:auto}
      .article-page .article-layout{grid-template-columns:minmax(0,1fr) 270px}
    }
    @media (max-width:860px){
      .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:640px){
      .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;font-size:11px}
      .logo span{max-width:135px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
      .logo img{width:38px;height:38px}
      .member-link{display:none}
      .open-account{min-height:38px;padding:0 13px}
      .article-page .article-masthead{padding:30px 0 26px}
      .article-page .breadcrumbs{margin-bottom:17px}
      .article-page .article-title{font-size:30px}
      .article-page .article-layout{padding-top:24px}
      .article-page .article-card{border-radius:16px}
      .article-page .article-intro{padding:20px}
      .article-page .article-body{padding:26px 20px;font-size:16px}
      .article-page .article-body h2{font-size:23px}
      .article-page .risk-note{margin:0 20px 25px}
      .article-page .article-tags{padding:0 20px 27px}
      .article-page .article-navigation{grid-template-columns:1fr}
      .article-page .article-navigation .next{text-align:left}
      .article-page .article-sidebar{grid-template-columns:1fr}
      .article-page .related-section{padding-top:42px}
      .article-page .section-head{align-items:start;flex-direction:column;gap:4px}
      .article-page .related-grid{grid-template-columns:1fr}
      .article-page .related-card img{height:190px}
      .footer .container{padding-top:42px}
      .footer-grid{grid-template-columns:1fr;gap:28px}
    }