:root{
      --primary:#0B3D91;
      --primary-dark:#072a65;
      --primary-soft:#eaf1fc;
      --gold:#c79235;
      --sand:#f7f2e8;
      --coffee:#35291f;
      --text:#20242b;
      --muted:#68707d;
      --line:#e5e7eb;
      --white:#fff;
      --shadow:0 16px 42px rgba(24,31,43,.09);
      --radius:18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--text);background:#f8f9fb;font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;line-height:1.7}
    body.drawer-locked{overflow:hidden}
    img{max-width:100%;display:block}
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}
    .topbar{color:#e7edfa;background:var(--primary-dark);font-size:13px}
    .topbar-inner{min-height:38px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .topbar-contact{display:flex;gap:20px}
    .topbar a:hover{color:#fff}
    .header{position:relative;z-index:40;background:var(--white);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:10px;min-width:0;color:var(--coffee);font-weight:800;font-size:20px}
    .logo img{width:42px;height:42px;object-fit:contain}
    .main-nav{margin-left:auto}
    .nav-list{display:flex;align-items:center;gap:4px;margin:0;padding:0;list-style:none}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;gap:6px;padding:27px 12px;color:#333;font-size:15px;font-weight:600}
    .nav-link:hover{color:var(--primary)}
    .has-arrow:after{content:"";width:6px;height:6px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(45deg) translateY(-2px)}
    .dropdown-panel,.mega-menu{position:absolute;top:calc(100% - 3px);left:50%;visibility:hidden;opacity:0;transform:translate(-50%,10px);transition:.2s ease;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow)}
    .nav-item:hover>.dropdown-panel,.nav-item:hover>.mega-menu{visibility:visible;opacity:1;transform:translate(-50%,0)}
    .dropdown-panel{width:270px;padding:12px}
    .dropdown-panel>a{display:block;padding:10px 12px;border-radius:8px;color:#4b515b}
    .dropdown-panel>a:hover{color:var(--primary);background:var(--primary-soft)}
    .dropdown-panel .dropdown-all{margin-top:6px;color:#fff;background:var(--primary);text-align:center}
    .mega-menu{width:760px;padding:22px}
    .mega-menu.mega-wide{width:min(940px,calc(100vw - 40px))}
    .mega-title{margin:0 0 14px;color:var(--coffee);font-size:17px}
    .mega-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
    .mega-card{min-width:0;padding:12px;border:1px solid var(--line);border-radius:11px;background:#fff}
    .mega-card:hover{border-color:#a9bde2;background:#f8faff}
    .mega-card img{width:100%;height:72px;margin-bottom:9px;border-radius:8px;object-fit:contain;background:#f2f4f7}
    .mega-card img.video-thumb,.mega-card img.product-thumb{object-fit:cover}
    .mega-card strong{display:block;overflow:hidden;color:#29303a;font-size:14px;text-overflow:ellipsis;white-space:nowrap}
    .mega-card p{display:-webkit-box;overflow:hidden;margin:6px 0 0;color:var(--muted);font-size:12px;-webkit-line-clamp:2;-webkit-box-orient:vertical}
    .mega-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:7px;color:var(--primary);font-size:11px}
    .mega-footer{display:block;margin-top:16px;padding:10px;color:#fff;background:var(--primary);border-radius:9px;text-align:center;font-weight:700}
    .mega-columns{display:grid;grid-template-columns:190px minmax(0,1fr);gap:22px}
    .mega-categories{padding-right:18px;border-right:1px solid var(--line)}
    .mega-categories>a{display:block;padding:8px 10px;border-radius:7px;color:#555d68;font-size:14px}
    .mega-categories>a:hover{color:var(--primary);background:var(--primary-soft)}
    .header-btns{display:flex;align-items:center;gap:10px}
    .account-btn{padding:10px 15px;color:#fff;background:var(--primary);border-radius:9px;font-size:14px;font-weight:700}
    .hamburger{display:none;width:42px;height:42px;padding:10px;border:0;border-radius:9px;background:var(--primary-soft);cursor:pointer}
    .hamburger span{display:block;width:100%;height:2px;margin:5px 0;background:var(--primary);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{position:fixed;z-index:80;inset:0;visibility:hidden;opacity:0;background:rgba(12,18,29,.55);transition:.25s}
    .drawer-overlay.open{visibility:visible;opacity:1}
    .mobile-drawer{position:fixed;z-index:90;top:0;right:0;width:min(390px,88vw);height:100%;overflow-y:auto;background:#fff;box-shadow:-20px 0 50px rgba(0,0,0,.16);transform:translateX(105%);transition:.3s ease}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{display:flex;align-items:center;gap:10px;min-height:72px;padding:14px 18px;border-bottom:1px solid var(--line)}
    .drawer-head>a{color:var(--primary);font-weight:700}
    .drawer-close{margin-left:auto;width:38px;height:38px;border:0;border-radius:50%;color:#253047;background:#edf1f7;font-size:25px;cursor:pointer}
    .drawer-menu{padding:14px 18px 30px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:13px 8px;border:0;border-bottom:1px solid var(--line);color:#29303a;background:none;text-align:left;font-weight:700;cursor:pointer}
    .drawer-toggle{position:relative}
    .drawer-toggle:after{content:"+";position:absolute;right:8px}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:8px 0 8px 14px}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:9px 10px;color:#626a76;font-size:14px}
    .drawer-submenu a:hover{color:var(--primary);background:var(--primary-soft)}
    .tag-page{min-width:0}
    .tag-banner{padding:70px 0 64px;color:#fff;background:radial-gradient(circle at 20% 20%,rgba(199,146,53,.45),transparent 32%),linear-gradient(135deg,var(--coffee),#57412d 58%,var(--primary-dark))}
    .breadcrumb{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px;color:#eee2cc;font-size:14px}
    .breadcrumb a:hover{color:#fff}
    .tag-banner h1{margin:0;font-size:clamp(34px,5vw,58px);line-height:1.18}
    .tag-banner p{max-width:720px;margin:18px 0 0;color:#f2e9db;font-size:17px}
    .tag-summary{display:flex;align-items:center;gap:16px;margin-top:28px}
    .tag-count{display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border:1px solid rgba(255,255,255,.28);border-radius:999px;background:rgba(255,255,255,.1);backdrop-filter:blur(8px)}
    .tag-count strong{color:#ffd98c;font-size:22px}
    .tag-content{padding:62px 0 78px}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:26px}
    .section-head h2{margin:0;color:var(--coffee);font-size:30px}
    .section-head p{margin:5px 0 0;color:var(--muted)}
    .article-list{display:grid;gap:22px}
    .article-card{display:grid;grid-template-columns:310px minmax(0,1fr);min-width:0;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:0 8px 26px rgba(30,39,54,.05);transition:.22s}
    .article-card:hover{border-color:#bdcbe4;box-shadow:var(--shadow);transform:translateY(-2px)}
    .article-media{display:block;min-height:235px;background:#e9edf3}
    .article-media img{width:100%;height:100%;object-fit:cover}
    .article-body{display:flex;min-width:0;flex-direction:column;padding:26px 28px}
    .article-labels{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:10px}
    .article-labels span{padding:4px 10px;color:var(--primary);background:var(--primary-soft);border-radius:999px;font-size:12px;font-weight:700}
    .article-body h2{margin:0 0 10px;color:#242b35;font-size:24px;line-height:1.35}
    .article-body h2 a:hover{color:var(--primary)}
    .article-summary{display:-webkit-box;overflow:hidden;margin:0 0 16px;color:var(--muted);-webkit-line-clamp:3;-webkit-box-orient:vertical}
    .article-meta{display:flex;flex-wrap:wrap;gap:8px 17px;margin-top:auto;color:#7b828d;font-size:13px}
    .article-tags{overflow-wrap:anywhere}
    .read-more{align-self:flex-start;margin-top:18px;padding:9px 15px;color:#fff;background:var(--primary);border-radius:8px;font-size:14px;font-weight:700}
    .read-more:hover{background:var(--primary-dark)}
    .empty-guide{margin-top:34px;padding:22px;border:1px solid #ead8b7;border-radius:14px;color:#624b27;background:var(--sand)}
    .pagination{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-top:42px}
    .pagination a,.pagination span{display:flex;align-items:center;justify-content:center;min-width:42px;height:42px;padding:0 13px;border:1px solid var(--line);border-radius:9px;background:#fff;color:#4f5865}
    .pagination a:hover,.pagination .current{color:#fff;background:var(--primary);border-color:var(--primary)}
    .footer{color:#cfd6e2;background:#171d28}
    .footer-main{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:42px;padding:58px 0 42px}
    .footer .logo{color:#fff}
    .footer-brand p,.footer-contact p{color:#aeb7c5;font-size:14px}
    .footer h3{margin:4px 0 18px;color:#fff;font-size:16px}
    .footer-links{display:grid;gap:10px}
    .footer-links a,.footer-contact a{color:#aeb7c5;font-size:14px}
    .footer-links a:hover,.footer-contact a:hover{color:#fff}
    .footer-bottom{display:flex;justify-content:space-between;gap:24px;padding:20px 0;border-top:1px solid #303746;color:#8f99a8;font-size:13px}
    @media (max-width:1080px){
      .main-nav{display:none}
      .hamburger{display:block}
      .header-btns{margin-left:auto}
      .article-card{grid-template-columns:270px minmax(0,1fr)}
    }
    @media (max-width:800px){
      .topbar-welcome{display:none}
      .topbar-inner{justify-content:center}
      .article-card{grid-template-columns:1fr}
      .article-media{height:230px;min-height:0}
      .footer-main{grid-template-columns:1fr 1fr}
      .footer-brand{grid-column:1/-1}
    }
    @media (max-width:560px){
      .container{width:min(100% - 28px,1180px)}
      .topbar-contact{gap:10px;font-size:12px}
      .header-inner{min-height:68px}
      .logo span{max-width:130px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
      .header-btns>.account-btn{display:none}
      .tag-banner{padding:48px 0}
      .tag-banner h1{font-size:36px}
      .tag-content{padding:44px 0 60px}
      .section-head{display:block}
      .article-body{padding:21px}
      .article-body h2{font-size:21px}
      .footer-main{grid-template-columns:1fr;gap:28px}
      .footer-brand{grid-column:auto}
      .footer-bottom{flex-direction:column}
    }