:root{
      --theme:#0B3D91;
      --theme-dark:#072b68;
      --theme-light:#eaf1ff;
      --accent:#ff765f;
      --cream:#fffaf0;
      --ink:#252933;
      --muted:#667085;
      --line:#e4e8ef;
      --white:#fff;
      --shadow:0 18px 46px rgba(11,61,145,.10);
      --radius:18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:#f7f9fc;font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.65}
    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{background:var(--theme-dark);color:#dce8ff;font-size:13px}
    .topbar .container{min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .topbar-links{display:flex;align-items:center;gap:22px}
    .topbar a{color:#fff}
    .topbar a:hover{text-decoration:underline}

    .header{position:relative;z-index:50;background:rgba(255,255,255,.98);border-bottom:1px solid var(--line)}
    .header-inner{min-height:78px;display:flex;align-items:center;gap:28px}
    .logo{display:flex;align-items:center;gap:11px;min-width:180px;color:var(--theme);font-size:20px;font-weight:800;white-space:nowrap}
    .logo img{width:42px;height:42px;object-fit:contain;border-radius:10px}
    .main-nav{align-self:stretch;display:flex;align-items:stretch;margin-left:auto}
    .nav-list{display:flex;align-items:stretch;gap:2px;margin:0;padding:0;list-style:none}
    .nav-item{position:relative;display:flex;align-items:stretch}
    .nav-link{position:relative;display:flex;align-items:center;padding:0 13px;color:#303846;font-size:15px;font-weight:650;white-space:nowrap}
    .nav-link:hover,.nav-item:focus-within>.nav-link{color:var(--theme)}
    .nav-link.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:.2s}
    .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:60;visibility:hidden;opacity:0;transform:translate(-50%,10px);padding:20px;background:#fff;border:1px solid var(--line);border-radius:0 0 18px 18px;box-shadow:0 24px 55px rgba(20,32,55,.16);transition:opacity .2s,transform .2s,visibility .2s}
    .dropdown-panel::before,.mega-menu::before{content:"";position:absolute;left:0;right:0;top:-10px;height:10px}
    .dropdown-panel{width:330px}
    .mega-menu{width:min(760px,80vw)}
    .nav-item:hover>.dropdown-panel,.nav-item:hover>.mega-menu,.nav-item:focus-within>.dropdown-panel,.nav-item:focus-within>.mega-menu{visibility:visible;opacity:1;transform:translate(-50%,0)}
    .nav-item:nth-last-child(-n+3) .mega-menu{left:auto;right:-90px;transform:translateY(10px)}
    .nav-item:nth-last-child(-n+3):hover>.mega-menu,.nav-item:nth-last-child(-n+3):focus-within>.mega-menu{transform:translateY(0)}
    .panel-title{margin:0 0 12px;color:var(--theme);font-size:13px;font-weight:800;letter-spacing:.08em}
    .panel-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:7px}
    .dropdown-panel .panel-list{grid-template-columns:1fr}
    .panel-list a{padding:9px 11px;border-radius:9px;background:#f6f8fc;color:#344054;font-size:14px}
    .panel-list a:hover{color:var(--theme);background:var(--theme-light)}
    .mega-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}
    .mega-card{min-width:0;padding:13px;border:1px solid var(--line);border-radius:12px;background:#fff;transition:.2s}
    .mega-card:hover{border-color:#b8c9e8;transform:translateY(-2px);box-shadow:0 10px 24px rgba(11,61,145,.08)}
    .mega-card img{width:34px;height:34px;margin-bottom:9px;object-fit:contain;border-radius:8px}
    .mega-card strong,.mega-card small{display:block;overflow:hidden}
    .mega-card strong{margin-bottom:4px;color:#202936;font-size:14px;white-space:nowrap;text-overflow:ellipsis}
    .mega-card small{color:var(--muted);font-size:12px;line-height:1.45}
    .mega-footer{display:block;margin:15px -20px -20px;padding:13px 20px;text-align:right;color:var(--theme);background:#f4f7fd;border-radius:0 0 18px 18px;font-size:13px;font-weight:750}
    .header-btns{display:flex;align-items:center;gap:9px}
    .member-link{color:var(--theme);font-size:14px;font-weight:750;white-space:nowrap}
    .open-account{padding:10px 17px;color:#fff;background:var(--theme);border-radius:10px;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{display:none;width:42px;height:42px;padding:9px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer}
    .hamburger span{display:block;width:21px;height:2px;margin:4px auto;background:var(--ink);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;z-index:80;visibility:hidden;opacity:0;background:rgba(10,18,32,.55);transition:.25s}
    .drawer-overlay.open{visibility:visible;opacity:1}
    .mobile-drawer{position:fixed;top:0;right:0;bottom:0;z-index:90;width:min(390px,88vw);overflow-y:auto;background:#fff;box-shadow:-22px 0 55px rgba(0,0,0,.18);transform:translateX(105%);transition:transform .28s ease}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{min-height:74px;display:flex;align-items:center;gap:12px;padding:14px 20px;color:var(--theme);border-bottom:1px solid var(--line);font-weight:750}
    .drawer-head>a{padding:8px 12px;border-radius:8px;background:var(--theme-light)}
    .drawer-close{margin-left:auto;width:38px;height:38px;padding:0;border:0;background:transparent;font-size:29px;line-height:1;cursor:pointer}
    .drawer-menu{padding:12px 18px 32px}
    .drawer-link,.drawer-toggle{display:flex;width:100%;align-items:center;justify-content:space-between;padding:13px 8px;border:0;border-bottom:1px solid #edf0f5;background:transparent;text-align:left;font-weight:700;cursor:pointer}
    .drawer-toggle::after{content:"+";color:var(--theme);font-size:20px;font-weight:400}
    .drawer-toggle.active::after{content:"−"}
    .drawer-submenu{display:none;padding:6px 0 8px 14px}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:9px 10px;color:var(--muted);border-left:2px solid #dfe7f5;font-size:14px}
    .drawer-submenu a:hover{color:var(--theme);border-color:var(--theme)}

    .category-page{min-height:600px}
    .category-page .category-hero{position:relative;overflow:hidden;padding:72px 0 62px;background:linear-gradient(135deg,#fff8ec 0%,#fff 46%,#edf3ff 100%);border-bottom:1px solid var(--line)}
    .category-page .category-hero::before,.category-page .category-hero::after{content:"";position:absolute;border-radius:50%;pointer-events:none}
    .category-page .category-hero::before{width:280px;height:280px;top:-165px;right:8%;background:rgba(255,118,95,.16)}
    .category-page .category-hero::after{width:190px;height:190px;left:5%;bottom:-125px;border:34px solid rgba(11,61,145,.08)}
    .category-page .breadcrumb{position:relative;z-index:1;display:flex;align-items:center;gap:8px;margin-bottom:18px;color:var(--muted);font-size:14px}
    .category-page .breadcrumb a{color:var(--theme);font-weight:700}
    .category-page .category-label{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;color:#9a3d2e;background:#fff0eb;border:1px solid #ffd4cb;border-radius:999px;font-size:13px;font-weight:800}
    .category-page .category-label::before{content:"";width:7px;height:7px;background:var(--accent);border-radius:50%}
    .category-page .category-title{position:relative;z-index:1;max-width:850px;margin:17px 0 13px;color:#202733;font-size:clamp(36px,5vw,58px);line-height:1.14;letter-spacing:-.04em}
    .category-page .category-intro{position:relative;z-index:1;max-width:760px;margin:0;color:#5d6675;font-size:17px}
    .category-page .category-stats{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:10px;margin-top:25px}
    .category-page .category-stats span{padding:8px 13px;background:rgba(255,255,255,.8);border:1px solid #e0e5ed;border-radius:10px;color:#475467;font-size:13px;box-shadow:0 8px 22px rgba(33,48,74,.05)}

    .category-page .article-section{padding:62px 0 78px}
    .category-page .section-heading{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:25px}
    .category-page .section-heading h2{margin:0;color:#202936;font-size:29px;line-height:1.25}
    .category-page .section-heading p{margin:6px 0 0;color:var(--muted)}
    .category-page .section-mark{color:var(--theme);font-size:13px;font-weight:800;letter-spacing:.12em}
    .category-page .article-list{display:grid;gap:20px}
    .category-page .article-card{display:grid;grid-template-columns:310px minmax(0,1fr);min-height:250px;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:0 10px 30px rgba(27,43,68,.055);transition:transform .25s,border-color .25s,box-shadow .25s}
    .category-page .article-card:hover{transform:translateY(-3px);border-color:#bdccea;box-shadow:var(--shadow)}
    .category-page .article-cover{position:relative;min-height:250px;overflow:hidden;background:#e9edf4}
    .category-page .article-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
    .category-page .article-card:hover .article-cover img{transform:scale(1.035)}
    .category-page .cover-category{position:absolute;top:16px;left:16px;padding:6px 10px;color:#fff;background:rgba(11,61,145,.92);border-radius:8px;font-size:12px;font-weight:750}
    .category-page .article-body{min-width:0;display:flex;flex-direction:column;padding:25px 28px}
    .category-page .article-title{margin:0 0 10px;color:#202936;font-size:23px;line-height:1.4}
    .category-page .article-title a:hover{color:var(--theme)}
    .category-page .article-summary{display:-webkit-box;overflow:hidden;margin:0 0 16px;color:#5f6978;font-size:15px;line-height:1.75;-webkit-box-orient:vertical;-webkit-line-clamp:3}
    .category-page .article-meta{display:flex;flex-wrap:wrap;gap:7px 15px;margin-top:auto;color:#7a8492;font-size:13px}
    .category-page .article-meta span{display:inline-flex;align-items:center;gap:5px}
    .category-page .article-meta span::before{content:"";width:5px;height:5px;background:#b6c0cf;border-radius:50%}
    .category-page .article-tags{margin:13px 0 0;padding-top:12px;color:#687386;border-top:1px dashed #e1e5eb;font-size:13px}
    .category-page .article-tags strong{color:#344054}
    .category-page .article-actions{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:15px}
    .category-page .read-more{display:inline-flex;align-items:center;gap:8px;color:var(--theme);font-size:14px;font-weight:800}
    .category-page .read-more::after{content:"→";transition:transform .2s}
    .category-page .read-more:hover::after{transform:translateX(4px)}
    .category-page .read-note{color:#98a2b3;font-size:12px}

    .category-page .pagination{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-top:36px}
    .category-page .pagination a{min-width:42px;height:42px;display:inline-flex;align-items:center;justify-content:center;padding:0 13px;background:#fff;border:1px solid var(--line);border-radius:10px;color:#475467;font-size:14px;font-weight:700}
    .category-page .pagination a:hover,.category-page .pagination a.active,.category-page .pagination a.current{color:#fff;background:var(--theme);border-color:var(--theme)}

    .footer{color:#d8e3f6;background:#091d3e}
    .footer .container{padding-top:54px}
    .footer-grid{display:grid;grid-template-columns:1.45fr 1fr 1fr 1fr;gap:42px;padding-bottom:42px}
    .footer h3{margin:0 0 16px;color:#fff;font-size:16px}
    .footer-brand strong{display:block;margin-bottom:14px;color:#fff;font-size:23px}
    .footer p{margin:8px 0;color:#aebdd5;font-size:14px;line-height:1.8}
    .footer-grid>div>a{display:block;width:max-content;max-width:100%;margin:8px 0;color:#bdcaDC;font-size:14px}
    .footer-grid>div>a:hover{color:#fff}
    .footer-bottom{min-height:66px;display:flex;align-items:center;justify-content:space-between;gap:20px;color:#8fa2c1;border-top:1px solid rgba(255,255,255,.1);font-size:13px}

    @media (max-width:1080px){
      .main-nav{display:none}
      .hamburger{display:block}
      .header-inner{min-height:70px}
      .header-btns{margin-left:auto}
      .category-page .article-card{grid-template-columns:280px minmax(0,1fr)}
      .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    }
    @media (max-width:760px){
      .container{width:min(100% - 28px,1180px)}
      .topbar .container{padding:8px 0;align-items:flex-start;flex-direction:column;gap:2px}
      .topbar-links{flex-wrap:wrap;gap:2px 14px}
      .logo{min-width:0;font-size:17px}
      .logo img{width:38px;height:38px}
      .member-link{display:none}
      .open-account{padding:9px 13px}
      .category-page .category-hero{padding:48px 0 43px}
      .category-page .category-title{font-size:38px}
      .category-page .category-intro{font-size:15px}
      .category-page .article-section{padding:42px 0 58px}
      .category-page .section-heading{align-items:flex-start;flex-direction:column}
      .category-page .article-card{grid-template-columns:1fr}
      .category-page .article-cover{min-height:215px;max-height:250px}
      .category-page .article-body{padding:21px}
      .category-page .article-title{font-size:20px}
      .category-page .article-summary{-webkit-line-clamp:3}
      .category-page .article-actions{align-items:flex-start;flex-direction:column}
      .footer-grid{grid-template-columns:1fr;gap:24px}
      .footer-bottom{padding:18px 0;align-items:flex-start;flex-direction:column}
    }
    @media (max-width:420px){
      .logo span{max-width:120px;overflow:hidden;text-overflow:ellipsis}
      .open-account{display:none}
      .category-page .category-title{font-size:33px}
      .category-page .article-meta{flex-direction:column;gap:4px}
    }