:root{
      --theme:#0B3D91;
      --theme-dark:#06285f;
      --ink:#14213d;
      --muted:#64748b;
      --line:#dbe4f0;
      --bg:#f4f7fb;
      --card:#ffffff;
      --accent:#35d07f;
      --shadow:0 18px 48px rgba(14,39,78,.10);
      --radius:18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",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:#071b3d;color:#c8d6ee;font-size:13px}
    .topbar .container{min-height:36px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .topbar strong{color:#fff}
    .topbar a{margin-left:22px;color:#c8d6ee}
    .topbar a:hover{color:#fff}

    .header{position:relative;z-index:20;background:#fff;border-bottom:1px solid #e7edf5}
    .header-inner{min-height:76px;display:flex;align-items:center;gap:34px}
    .logo{display:flex;align-items:center;gap:10px;color:var(--theme);font-size:19px;font-weight:800;white-space:nowrap}
    .logo img{width:35px;height:35px;object-fit:contain}
    .main-nav{flex:1}
    .nav-list{display:flex;justify-content:center;align-items:stretch;gap:3px;list-style:none;padding:0;margin:0}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;height:76px;padding:0 15px;color:#334155;font-size:15px;font-weight:600;white-space:nowrap}
    .nav-link:hover,.nav-link:focus{color:var(--theme)}
    .has-arrow:after{content:"";width:6px;height:6px;margin:0 0 3px 8px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg)}
    .dropdown-panel,.mega-menu{position:absolute;top:calc(100% - 1px);left:50%;transform:translateX(-50%) translateY(8px);visibility:hidden;opacity:0;transition:.22s ease;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:0 0 16px 16px;padding:20px;z-index:30}
    .dropdown-panel{width:250px}
    .dropdown-panel a{display:block;padding:8px 4px;border-bottom:1px solid #edf1f6;color:#46566d;font-size:14px}
    .dropdown-panel a:last-child{color:var(--theme);font-weight:700;border:0}
    .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;transform:translateX(-50%) translateY(0)}
    .dropdown-panel:before,.mega-menu:before{content:"";position:absolute;left:0;right:0;top:-12px;height:12px}
    .mega-menu{width:650px}
    .mega-title{margin:0 0 12px;color:var(--theme);font-size:14px;font-weight:800}
    .mega-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
    .mega-card{display:flex;align-items:center;gap:10px;padding:10px;border:1px solid #e6edf5;border-radius:10px;background:#fbfdff}
    .mega-card:hover{border-color:#9fb9e2;background:#f3f8ff}
    .mega-card img{width:38px;height:38px;object-fit:cover;border-radius:8px;background:#e9eff8}
    .mega-card b{display:block;font-size:13px;color:#1d3557}
    .mega-card span span{display:inline;font-size:11px;color:var(--muted)}
    .mega-links{display:flex;flex-wrap:wrap;gap:8px}
    .mega-links a{padding:5px 10px;border-radius:20px;background:#eef4fc;color:var(--theme);font-size:12px}
    .mega-footer{display:block;margin-top:16px;padding-top:13px;border-top:1px solid var(--line);color:var(--theme);font-size:13px;font-weight:700}

    .header-btns{display:flex;align-items:center;gap:12px;white-space:nowrap}
    .header-btns>a:first-child{color:var(--theme);font-size:14px;font-weight:700}
    .account-btn{padding:9px 16px;background:var(--theme);color:#fff;border-radius:9px;font-size:13px}
    .account-btn:hover{background:var(--theme-dark)}
    .hamburger{display:none;border:0;background:transparent;padding:8px;cursor:pointer}
    .hamburger span{display:block;width:23px;height:2px;margin:4px 0;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{display:none;position:fixed;inset:0;background:rgba(5,18,42,.52);z-index:40}
    .drawer-overlay.open{display:block}
    .mobile-drawer{position:fixed;top:0;right:0;width:min(370px,88vw);height:100vh;overflow:auto;background:#fff;z-index:50;transform:translateX(100%);transition:.28s ease;box-shadow:-12px 0 35px rgba(0,0,0,.14)}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{height:70px;display:flex;align-items:center;gap:16px;padding:0 20px;border-bottom:1px solid var(--line);font-weight:800}
    .drawer-head span{flex:1;color:var(--theme)}
    .drawer-head a{padding:6px 12px;border-radius:7px;background:var(--theme);color:#fff;font-size:13px}
    .drawer-close{border:0;background:transparent;color:#64748b;font-size:28px;cursor:pointer}
    .drawer-menu{padding:14px 20px 30px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 0;border:0;border-bottom:1px solid #edf1f6;background:none;text-align:left;color:#253858;font-size:15px;font-weight:700;cursor:pointer}
    .drawer-toggle:after{content:"＋";float:right;color:var(--theme)}
    .drawer-toggle.active:after{content:"－"}
    .drawer-submenu{display:none;padding:5px 0 7px 14px}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:8px 0;color:var(--muted);font-size:14px}

    .tag-page{padding:58px 0 84px}
    .tag-hero{position:relative;overflow:hidden;padding:46px 36px;border-radius:24px;background:linear-gradient(135deg,#071b3d 0%,#0B3D91 58%,#1471bd 100%);color:#fff;box-shadow:var(--shadow)}
    .tag-hero:after{content:"";position:absolute;width:260px;height:260px;right:-60px;top:-90px;border:1px solid rgba(255,255,255,.25);border-radius:50%;box-shadow:0 0 0 28px rgba(255,255,255,.05),0 0 0 58px rgba(255,255,255,.035)}
    .eyebrow{position:relative;z-index:1;margin:0 0 9px;color:#9cefc0;font-size:13px;font-weight:800;letter-spacing:.12em}
    .tag-hero h1{position:relative;z-index:1;margin:0 0 10px;font-size:clamp(30px,5vw,54px);line-height:1.15}
    .tag-hero p{position:relative;z-index:1;max-width:680px;margin:0;color:#d8e7fb;font-size:16px}
    .tag-stat{position:relative;z-index:1;display:inline-flex;margin-top:22px;padding:8px 14px;border:1px solid rgba(255,255,255,.24);border-radius:30px;background:rgba(255,255,255,.1);font-size:13px}
    .tag-content{margin-top:28px}
    .tag-toolbar{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:16px}
    .tag-toolbar h2{margin:0;font-size:22px}
    .tag-toolbar span{color:var(--muted);font-size:14px}
    .tag-article-list{display:grid;gap:16px}
    .tag-article-card{display:grid;grid-template-columns:250px 1fr;gap:23px;padding:18px;border:1px solid var(--line);border-radius:16px;background:var(--card);box-shadow:0 8px 24px rgba(21,52,94,.05)}
    .tag-article-card:hover{border-color:#a5bee4;transform:translateY(-2px);transition:.2s ease}
    .tag-cover{height:170px;overflow:hidden;border-radius:11px;background:#eaf0f8}
    .tag-cover img{width:100%;height:100%;object-fit:cover}
    .tag-article-body{min-width:0;display:flex;flex-direction:column}
    .tag-label{display:inline-flex;width:max-content;padding:3px 9px;border-radius:5px;background:#eaf2ff;color:var(--theme);font-size:12px;font-weight:700}
    .tag-article-body h3{margin:8px 0 6px;font-size:20px;line-height:1.4}
    .tag-article-body h3 a:hover{color:var(--theme)}
    .tag-summary{display:-webkit-box;overflow:hidden;margin:0;color:#64748b;font-size:14px;line-height:1.8;-webkit-box-orient:vertical;-webkit-line-clamp:3}
    .tag-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:auto;padding-top:13px;color:#8290a4;font-size:12px}
    .tag-meta strong{color:#5c6d83;font-weight:600}
    .tag-tags{margin-top:8px;color:var(--theme);font-size:12px}
    .read-link{margin-top:10px;color:var(--theme);font-size:13px;font-weight:800}
    .pagination{display:flex;justify-content:center;flex-wrap:wrap;gap:8px;margin-top:32px}
    .pagination a{min-width:36px;padding:6px 12px;border:1px solid var(--line);border-radius:8px;background:#fff;color:#53657b;text-align:center;font-size:13px}
    .pagination a:hover,.pagination a.active{border-color:var(--theme);background:var(--theme);color:#fff}

    .footer{padding:52px 0 20px;background:#071b3d;color:#adbed8}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px}
    .footer h3{margin:0 0 13px;color:#fff;font-size:20px}
    .footer h4{margin:0 0 13px;color:#fff;font-size:14px}
    .footer p{margin:6px 0;font-size:13px}
    .footer a{display:block;margin:7px 0;color:#adbed8;font-size:13px}
    .footer a:hover{color:#fff}
    .footer-brand p{max-width:285px}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:35px;padding-top:18px;border-top:1px solid rgba(255,255,255,.14);font-size:12px}

    @media (max-width:900px){
      .main-nav{display:none}
      .hamburger{display:block}
      .header-inner{justify-content:space-between}
      .header-btns{margin-left:auto}
      .tag-page{padding-top:34px}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width:620px){
      .container{width:min(100% - 28px,1180px)}
      .topbar .container{align-items:flex-start;flex-direction:column;gap:0;padding:7px 0}
      .topbar a{margin:0 15px 0 0}
      .header-inner{min-height:66px;gap:10px}
      .header-btns>a:first-child{display:none}
      .account-btn{padding:7px 10px}
      .tag-hero{padding:32px 23px;border-radius:18px}
      .tag-hero p{font-size:14px}
      .tag-article-card{grid-template-columns:1fr;padding:13px}
      .tag-cover{height:190px}
      .tag-article-body{padding:0 4px 6px}
      .tag-article-body h3{font-size:18px}
      .tag-toolbar{align-items:flex-start;flex-direction:column;gap:3px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:25px 16px}
      .footer-bottom{align-items:flex-start;flex-direction:column;gap:7px}
    }